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Manufacturers Index - Monarch Machine Tool Co.
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Patent Number Date Title Name City Description
810,634 Jan. 23, 1906 Change Speed Gearing for Lathes Herbert L. Flather Nashua, Hillsborough County, NH Southgate & Southgate-patent attorneys
1,596,700 Aug. 17, 1926 Clutch Actuating Device for Lathes Wendell E. Whipp Sidney, OH Edward S. Reed - patent attorney
1,642,863 Sep. 20, 1927 Headstock for Lathes Wendell E. Whipp Sidney, OH Howard D. Smith - patent attorney
Original application filed, 27 Oct, 1924. Divided and this application filed, 06 Apr, 1925.
1,750,555 Mar. 11, 1930 Geared Headstock for Lathes Wendell E. Whipp Sidney, OH Howard D. Smith - patent attorney
This invention relates to new and useful improvements in geared headstocks for lathes. It is the principal object of my invention 6 to provide for the headstock of a lathe, a non-clashing change-speed mechanism by which a large number of speeds, for example, sixteen are obtained with a less number of gears, in the present instance, fourteen. All of the spindle speeds are selective and the changes are made while the lathe is in operation, the gears being constantly in mesh and preferably of the helical type so that they may run noiselessly and smoothly. Noise, friction and shock, and gear tooth marks on the work, are thus eliminated, while a constant transmission of power is achieved. All changes of spindle speeds are made by a small number of levers, in this instance four, which move double-sided heavy jaw-clutches along multiple integral portions of the spindle and intermediate shafts into locking engagement with the gears in the oil tight headstock, no gears being carried in the cover plate. The advantage of sixteen speeds for the spindle over a less number of speeds is that the operator will have available a more nearly correct spindle speed at which to operate the lathe. Furthermore, with sixteen speeds a more perfect progression of speeds results with a smaller gap between each speed. These results are also accomplished without interlocking devices in the head, thus avoiding complications and unnecessary expense.
1,929,269 Oct. 03, 1933 Apparatus for Automatic Form Turning Lathe Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
Our invention relates to an apparatus and method of operation for automatic form turning lathes.
It is the object of our invention to provide an automatic relieving machine and method of operation thereof and method of forming work pieces of various sizes and forms, and particularly forming relieved milling cutters. It is the object of our invention to provide such a machine in which the movement of the tool in imparting the configuration to the work piece by the longitudinal and transverse movements of the tool will be automatically, electrically controlled by the engagement and relative movement of a former pin with respect to a template so that the movement of the former pin will make and break electrical contacts which will, in turn, control the longitudinal and transverse movements of the tool with respect to the work. It is a further object to provide for the continuous spiral cut of the tool with respect to the work without the removal of the tool from the work except as it may be necessary, in the case of forming milling cutters with hooked teeth, to readjust the position of the tool and to compensate its position due to the change in angularity of the gash in the work piece and change in diameter thereof. It is a further object to provide means of continuously and uniformly operating the work piece on the spindle at a uniform speed while automatically in synchronism therewith adjusting the point of application of the tool as the tool progresses longitudinally of the work piece so that the tool will always, Upon its return to the work piece, be applied to the leading edge of the tooth being cut, while, at the same time, the path of cutting from beginning to end of the work piece will be substantially spiral and otherwise continuous, as it is possible by the very delicate and minute adjustment of the electrical controls to maintain the tool in substantially continuous contact with a movement of not over a thousandth of an inch with the work piece so that a spiral cut can be attained, while, heretofore, the best that could be accomplished in the art was a series of substantially parallel, continuous, circular cuts. It is a further object to provide a mechanism and method by which, when the pin once engages with the former, it will remain in engagement with the former continuously until the work is completed. It is a further object to provide means by which, when a hooked tooth work piece is being relieved, to either use a corrected template or a tilted template. In the event the corrected template is used, which we prefer and which is one of the forms of our invention, the template is not of the precise form of the work piece, but. is so corrected that the pin following such a template will control the application of the tool to compensate in an overhanging hooked cutter for the angular loss of position due to the angularity of the gash in the work piece as the tool progresses along the work piece longitudinally so that the tool, when guided by the corrected template, will always apply itself to the leading edge of each tooth no matter what position in the length of the work piece, so that the tool will be immediately applied in cutting position to the leading edge of such tooth irrespective of the change of angularity of the gash which forms one wall of the tooth of the work piece and compensate for the change in diameter. It is our object to eliminate relative movements between the former and former pin at intervals, which has heretofore been the custom in the art, and to thereby secure a cleaner, more uniform cut and one of very much greater accuracy than has heretofore been possible in form turning and relieving machines. It is our object to avoid all use of forming tools and to form the work by rough cutting on my machine and then finish cutting but all cutting to be done in accordance with the method and apparatus we set forth in this document. It is a further object to provide a tracer or former pin slightly larger, usually from ten to eleven thousandths of an inch, than the tool diameter to compensate for the air gap in the electrical contact points in the electrical control switch which controls the magnetic clutches and motors for imparting longitudinal and transverse movement to the tool to cause it to be applied to the work to give the work the desired configuration. It is our object to eliminate the use of a template of the same form as the work when working on a hooked tooth milling cutter, as the use of such a template leads to inaccuracies and complication in the mechanism, which we can avoid by our mechanism and method of cutting. It is our object to provide constant spindle speed and synchronous relieving of the tool, the movements of which, while constant in length, are timed as the carriage progresses according to the spiral of the teeth on the cutter.

    Apparatus for Automatic Form Turning Lathe Philber A. Abe Sidney, OH  
1,929,270 Oct. 03, 1933 Machine Tool Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
It is the object of my invention to provide a machine tool which will produce work pieces of regular or irregular shape, with sides that are flat, concave or convex, of irregular diameter or regular diameter with any number of sides and in any predetermined form. It is my object to provide a machine tool which will cut a work piece automatically according to a predetermined form and, at the same time, impart to the work piece any number of sides of any shape. It is a further object to provide a machine tool which has the following characteristics:
(1) Means of automatically reciprocating the cutting tool in order to adjust the depth and speed of cut of the tool which in turn controls whether the face of the tool so cut shall be flat, concave, or convex, or of any predetermined configuration.
(2) A machine tool-in which the ratio of rotation of the work piece and the tool movement will determine the number of sides cut on the work piece.
(3) A machine tool in which the depth of cut by the cutting tool can be adjusted according to the form of face to be cut.
(4) A machine tool in which the carriage and tool is moved bodily transversely of the work according to the form to be cut to follow a predetermined configuration desired to be imparted to the work.
(5) A machine tool in which the carriage and tool are moved longitudinally of the work in order to cut the work longitudinally.
It is my object to provide a machine tool in which the number of sides formed on a work piece depends upon the ratio of the revolution of the work to tool movement in and out transversely of the work piece; and the depth of cut is so regulated as to determine whether the sides so being cut are flat, concave or convex.


1,931,157 Oct. 17, 1933 Machine Tool Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to machine tools, and, in particular, to mechanism for moving a cutting tool with respect to a rotating work piece to form multiple sides on a rotating work piece, the tool movements to and from the work piece being adjusted according to the number of faces formed on the work piece which, in turn, is governed by the ratio of in and out tool movement for a given rotation of the work piece.
1,935,007 Nov. 14, 1933 Machine Tool Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to machine tools and, in particular, to the method of controlling the position of the cutting tool at different points in the cycle of rotation of a work piece in order to impart a different number of sides of the work piece and different configurations to the sides. It is a particular object of my invention to provide a method and apparatus for moving the tool together with the tool side through a given number of cycles according to the number of inward and outward movements to be effected during a given rotation of a work piece so as to determine the number of sides and the configuration of the sides to be formed on the work piece.
1,937,400 Nov. 28, 1933 Machine Tool Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to a machine tool and, in particular, to lathes and a method of controlling the application of a tool to a work piece and a lathe. It is my object to provide a lathe in which the tool can be applied to the work and will automatically form the work, cut the work with different faces and different diameters, will then withdraw from the work and return to its initial position without attention by the operator after having once been initiated in its cycle of operations. It is an object of my invention to provide means of adjusting by a plurality of micrometer stops the cutting steps that are automatically performed by the tool on the work piece and by switches actuated by the stops and other switches for controlling the carriage movement I am enabled to apply the tool as desired to cut the work piece according to the setting of the stops. In particular, it is my object to provide a machine of the character described having a single motor for the movement of the carriage to and from the work and along the work.
2,027,568 Jan. 14, 1936 Lathe Wendell E. Whipp Sidney, OH Toulmin & Toulmin - patent attorneys
Our invention relates to lathes and, in particular, to a hydraulic control for lathes. It is the object of our invention to provide a hydraulic control for a lathe in which the tool is brought automatically from inoperative position to the work and then proceeds automatically along the work, then is withdrawn from the work and automatically returned to its initial position ready for another cycle of operations. It is a further object of the invention to provide independent work driving mechanism and the tool advancing and retreating mechanism. It is a further object to provide a plurality of tool operating mechanisms operable from a common source of power on different parts of the work simultaneously or at different intervals in synchronism with one another. It is a further object of our invention to provide a three-part lathe construction consisting of a head stock section, a center section and a tail stock section and bar members for connecting said sections, thus eliminating dove tails and other guides which are an integral part of the interconnecting bed and utilizing such bars as supporting guiding members for the tool supports, such bars being readily replaceable and of standard section so that they are easily procured for replacement and repair, eliminating the previous necessity of virtually rebuilding the center section of the lathe when its grooves and dove tails become worn. It is a further object of our invention to provide means of so mounting the tail stock on the Interconnecting bars that it will be positively and permanently aligned with the head stock and the work to be supported. It is a further object to, provide a motor housing arranged for suitable ventilation as an integral part of the head stock and tail stock so that there will be no exposed gearing, chains or belts which may cause injury to the operator or impede his rapid operation of the machine. It is our object to provide a hydraulically controlled lathe that will be profitable on short runs of work as well as manufacturing in quantities, which is capable of simultaneous turning and facing cuts, the front and rear carriages traveling on round bars capable of longitudinal movement for turning cuts and a cross movement for facing cuts, such movement being arranged for being executed independently or in combination or in any given cycle of movements. The carriages are provided with rapid traverse. By our invention, we have been able to eliminate the heavy cast iron beds, the dove tail and slide construction thereon, the elimination of integral tool slides of cast iron, thereby eliminating the scraping of feeding operations and the elimination of maladjustment of the parts due to the failure to have positive alignment without great weight. We further eliminate intricate systems of cams and gearing operating through splined shafts which are necessary for timing and tool setting. It is a further object of our invention to provide vertical tool holders as well as horizontal tool holders, it being possible with our invention to place the tool holders in any desired position or at any desired angle.
    Lathe Clifford A. Bickel Sidney, OH  
2,039,876 May. 05, 1936 Automatic Lathe Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to machine tools. It is the object of my invention to provide a machine tool adapted to cut various configurations, upon work pieces on an automatic lathe. It is a further object to provide an electrically controlled automatic lathe, which will operate automatically according to the setting of the electrical controls and will be arranged to operate automatically from start to finish of the cutting operation on the work piece; it is an object to provide such an automatic lathe in which each operation has its separate electrical circuit with its separate magnetic clutch and separate switching system.

2,050,746 Aug. 11, 1936 Machine Tool Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to machine tools and in particular to a method of operation and an apparatus for performing a method of applying tools in separate groups to a work piece. The work piece may be cut longitudinally by one tool or a group of tools and may be cut transversely by another tool or group of tools. It is one object of the invention to provide a system of electric circuits operable as a unit, preferably from a common source of power, by which one carriage can be automatically operated into the work, along the work, from the work and back to an initial position automatically, the depth of cut of its tool being regulated as desired, and the other tool or group of tools being arranged to proceed to the work, into the work and out of the work. It is a further object to provide means by which the return of the tool or group of tools may be effected more rapidly automatically by the arrangement of the circuits than the initial movement of the tool.
2,051,127 Aug. 18, 1936 Universal Lathe Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
Our invention relates to lathes and in particular to universal lathes wherein the motion of the cutting tool relative to the work is automatically guided. An object of our invention is to provide a lathe wherein the cutting tool is automatically guided relative to the work, which it is cutting. Another object is to provide a lathe carriage with guiding mechanism whereby the longitudinal and cross-power feeds are operated automatically by a guiding member. Another object is to provide such a lathe carriage having a guiding member, differential gearing interconnecting the longitudinal and crosspower feeds and a follower engaging the guiding member, thereby setting up resistance which operates the differential gearing, so that the longitudinal and cross-power feeds will be actuated in such varying proportions as to cause the cam followed and cutting tool to follow paths like or similar to the contour of the guiding member. Another object is to provide a lathe carriage with the above-described automatic guiding mechanism by mechanical means only, as distinguished from electrical means. Another object is to provide braking mechanisms interconnected with the longitudinal feed and also with the cross feed to permit the use of a single-sided guiding member. Another object is to provide such mechanism as above described wherein the path of travel of the cutting tool of a lathe is controlled in such a manner from a guiding member as to create any predetermined shape or combination of shapes.
    Universal Lathe Stanley A. Brandenburg Sidney, OH  
2,052,441 Aug. 25, 1936 Apparatus for Controlling Operation of Tools Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
2,055,227 Sep. 22, 1936 Motor Automatic Lathe Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
This invention relates to machine tools, and in particular to automatic lathes having provision for automatically controlling the operations of the cutting tools. One object of my invention is to provide an automatic machine tool wherein the longitudinal and transverse motions of the cutting tool are actuated by individual motors. Another object is to provide such a machine tool wherein these longitudinal and transverse motors are controlled by electrical means actuated during the motion of the cutting tool. Another object is to provide such a machine tool wherein these longitudinal and transverse motors are started, stopped and/or reversed by electrical circuit breakers actuated by the motion of the carriage and/or cross slide thereof. Another object is to provide such a machine tool and a control system therefor, whereby these longitudinal and transverse motors may be actuated by electrical controlling means regulated by a guiding member of suitable configuration. Another object is to provide such a machine tool wherein these longitudinal and transverse motors are controlled by a template follower switch engaging a template between which relative motion occurs, the opening and closing of which switch actuates the transverse and longitudinal feeds according to the configuration of the template. Another object is to provide such a machine tool having a carriage and cross slide adapted to be fed slowly in one direction and traversed rapidly in the opposite direction, with provision for reversal of these movements. Another object is to provide a machine tool wherein the longitudinal and transverse motors are started, stopped and reversed by electrical means which have provision for interchanging the connections in such a manner that the in-feed controlling means may be arranged to operate the transverse motor in an out-feed direction, and the out-traverse controlling means may be adapted to operate the transverse motor in an in traverse direction. Another object is to provide a double-carriage automatic lathe wherein the feeding motor of the rear carriage is set in motion by electrical means actuated by the motion of the front carriage. Another object is to provide a machine tool with means for interchanging the electrical connections of the cross slide actuating means, whereby the electrical means for controlling the rotation of the cross slide motor in one direction may be individually controlled by the controlling apparatus which normally actuates the cross slide motor in the opposite direction and vice versa. Another object is to provide mechanical means of reversing the direction of rotation of the cross-slide mechanism in conjunction with the previously described means of interchanging the electrical connections of the cross slide motor controlling means, whereby the in-feed controlling means will produce an out-feed effect upon the feeding motor and vice versa. Another object is to provide such a machine tool having transverse and longitudinal feeds operated by separate reversible motors, these motors being adapted to be run more rapidly in a reverse traversing direction than in a forward feeding direction, with means for accomplishing such motion of the motors. Another object is to provide such a machine tool having means for automatically changing the go feeding speed to adapt it to the depth of cut necessary, without necessitating any attention on the part of the operator.

2,086,153 Jul. 06, 1937 Aparatus for Control of Machine Tools Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to an electric apparatus and method and electric circuit for controlling machine tools, such as lathes, so as to cause the tool of the lathe to impart a given configuration to the work in accordance with the predetermined design which is used as the master controlling means for controlling the electric circuit that, in turn, controls the lathe. It is my object to provide such circuit apparatus and practice a method in which I utilize apparatus of the same general character set forth in my co-pending application, Serial No. 583,570, filed December 28,1931, in which there is a lathe having a motor for imparting longitudinal movement to the tool, a motor for imparting transverse movement to the tool and a system of magnetic clutches controlled by the electric circuit for alternately operating the motors to cause the tool supported on the carriage so moved by the motors to follow a predetermined configuration and to impart that configuration to the work. As set forth in that application and as fully shown herein, I use a follower pin engaging with a template, but, in the present application, I have developed a novel system of control through the medium of light sensitive cells, thereby eliminating a switch mechanism and associated parts and making it possible to get an accuracy and responsiveness of control heretofore impossible with merely mechanical and electrical switches.

2,105,962 Jan. 18, 1938 Diameter Gauging Apparatus Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
This invention relates to turning apparatus for turning articles, and in particular, to apparatus for turning articles to a predetermined diameter without the necessity for frequently stopping the machine to measure the diameter obtained. One object of this invention is to provide apparatus for use in turning machinery, such as lathes, this apparatus having provision for setting the cutting tool in a predetermined and known position relative to the turning axis so that the tool may be fed to a position giving a known diameter, without the necessity of measuring the diameter at intermediate stages. Another object is to provide a lathe carriage having devices for setting the cutting tool thereof at a predetermined and known distance from the axis of rotation of the lathe upon which the carriage is used, whereby the cross slide of the carriage may be moved transversely to a predetermined position by means of its micrometer dials, and thereby turn the work-piece to a known diameter without the necessity of measuring the diameter before taking the finishing cut. Another object is to provide a carriage for a lathe, wherein the cross slide Is provided with a micrometer adjustment for distance and the tool post has a reference face placed at a predetermined position relative to a reference mark, and a device for setting the cutting edge of the cutting tool on the axis of rotation of the lathe so that the cross slide may be moved forward or backward and returned to a definite position relative to the lathe axis, for producing work of a predetermined diameter without the necessity of intermediate calipering operations. Another object is to provide a lathe carriage having an adjustable device with movable stops operatively connected to the feeding mechanism so that work-pieces may be turned to successive stepped diameters without the necessity of intermediate calipering operations to determine the diameters reached during the turning operations. Another object is to provide a lathe carriage having adjustable devices for turning stepped work to predetermined diameters, these adjustable devices including a shaft operatively connected to the cross slide screw shaft and having a dog adapted to engage adjustable dogs arranged adjacent the shaft, these dogs being adjusted to be engaged by the shaft dog when the cutting tool has reached the limit of its feeding motion for producing the desired diameter of work.

2,138,811 Dec. 06, 1938 Surface Hardening Lathe Bed Philber A. Abe Sidney, OH Toulmin & Toulmin - patent attorneys
My invention relates to a new article of manufacture for use as a lathe bed, and a process of producing it. It is my object to produce a lathe bed, which can be cast and machined, and thereafter be surface hardened. It is a further object to provide a novel alloy susceptible to the heat treatment and hardening process of this invention. It is my object to provide a type of material for use in lathe beds which can be surface hardened.
2,140,949 Dec. 20, 1938 Apparatus for Turning Complex Workpieces Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
This invention relates to lathes and in particular, to apparatus for turning complex workpieces such as those of non-circular cross section, together with methods for forming such work pieces. One object of this invention is to provide a machine for turning complex work-pieces with the aid of a three-dimensional cam member which not only predetermines the configuration of the work-piece in a given cross sectional plane, but also in other planes along the work-piece. Another object is to provide a machine having mechanism associated therewith and. employing a three-dimensional cam having in a complete revolution a configuration adapted to reproduce a portion only of a revolution in the work-piece, the cam and the work-piece being rotated at different speeds. Another object is to provide such apparatus as that described immediately above, wherein compensating devices are associated with the mechanism whereby the cutting tool is given a compensated motion to allow for the motion of the tool in turning tapered work-pieces, or those having different diameters there along. Another object is to provide apparatus for producing the three-dimensional or "length" cams employed in connection with the turning of objects of irregular cross section. Another object is to provide a machine for producing these three-dimensional cams wherein the configuration transversely is determined by a rotating cam formed from a representative cross section of the work-piece and the longitudinal configuration is obtained by means of a profile member, the combination of these two elements resulting in the three-dimensional cam referred to. Another object is to provide such apparatus as described immediately above, wherein the cross sectional cam and the three-dimensional cam being produced are rotated at different speeds so that the three-dimensional cam will receive, in a complete revolution, but a portion of the configuration of a complete revolution of the cross sectional cam, the necessary compensation for the taper of the work-piece being taken care of by certain compensating mechanism arranged between the cam follower and the cutting tool. Another object is to provide a machine for turning work-pieces of irregular cross section wherein means is provided for elongating the effect of the length or three-dimensional cam by providing the cam with longitudinal motion relatively to the cam follower so that the cam has the effect of a lengthened cam, thereby eliminating the necessity for producing additional cams in order to make work-pieces of greater length but of similar cross section. Another object is to provide apparatus far turning or boring work-pieces which do not have a common cross section from which a cross section can be taken to develop the cross sectional cam; in which case there is provided means for producing a master length cam in which a longitudinal section is taken and developed into 360 degrees or a complete revolution in making the length cam.
2,143,255 Jan. 10, 1939 Lathe Philber A. Abe Sidney, OH Toulmin & Toulmin - patent attorneys
This invention relates to lathes, and in particular, to apparatus for automatically controlling the operations of tools in turning articles of various configuration. One object of my invention is to provide apparatus for controlling the motions of a machine tool automatically, whereby the tool first rapidly traverses into the position where it engages the work; then feeds longitudinally for a predetermined distance; then rapid traverses out for a predetermined distance; and finally, rapid traverses back to its starting point. Another object is to provide such apparatus, as described immediately above, but wherein the tool is caused to move longitudinally a predetermined distance; then transversely another predetermined distance; then longitudinally a third predetermined distance and so on until a plurality of stepped portions have been cut on the lathe, the tool returning to its starting point by a rapid traverse motion after the last stepped portion has been cut. Another object is to provide apparatus for automatically controlling the operation of a machine tool, wherein the tool rapid traverses inward a predetermined distance; then feeds inward beyond this point for another predetermined distance; and then moves In the previously described manner longitudinally forward, transversely outward, and longitudinally backward to the starting point. Another object is to provide apparatus for automatically controlling the motions of a machine tool, wherein the tool is caused to feed inwardly for a predetermined distance; then to feed longitudinally in one direction for another predetermined distance; then transversely outward for another predetermined distance; and finally longitudinally in the opposite direction to the starting point, preferably by a rapid traverse motion. Another object is to provide a lathe having means for rapidly traversing the tool inwardly for a predetermined distance; then for causing the tool to execute a series of transverse and longitudinal movements so as to cut several stepped portions upon the work; then to rapid traverse or feed the tool outwardly until a predetermined position has been reached; and finally to cause the tool to execute a rapid traverse movement back to the starting point. Another object is to provide a lathe of the type described above, wherein a rear carriage operates in cooperation with a front carriage having the, previously described movements. Another object is to provide a lathe having means for causing a front tool to feed inwardly for a predetermined distance; then to feed longitudinally for another predetermined distance; then to rapidly traverse outwardly to a predetermined position; then to hold the front tool motionless while a rear tool feeds inwardly into the work and executes its cutting stroke; whereupon both the front tool and the rear tool simultaneously rapid traverse back to their starting points. Another object is to provide a lathe of the type described in the preceding paragraph, but wherein one of the tools is caused to "dwell" at the end of its feeding or cutting stroke so as to completely cut away the work and overcome the "spring" W and surface roughness of the material, after which the rapid traverse movement of the tool takes place, in the previously described manner. Another object is to provide a double tool lathe, wherein means is provided for rapidly traversing the front tool inwardly toward the work for a predetermined distance; thereafter feeding the tool inwardly for another predetermined distance; then feeding the tool longitudinally in one direction either by a continuous path or by a step-like path, as previously described; then feeding or rapidly traversing the front tool outward to a predetermined position, where it holds temporarily; then causing the rear tool to feed inwardly and accomplish its cuttlng-away stroke; and then finally to cause both the front tool and the rear tool to rapid traverse back to their respective starting points. Another object is to provide a lathe having a series of micrometer stops arranged to operate a switch or switches so as to enable the cutting of stepped workpieces without the necessity of depending upon follower switches sliding on templates, or having running contact with micrometer heads. Another object is to provide lathes of the previously described types, wherein a single-voltage electrical circuit is employed for operating the various magnetic clutches, switches and relays instead of the two-voltage circuits previously used, thereby greatly simplifying the machine and reducing the cost of manufacture. Another object is to provide means in such a lathe to "inch" or "jog" the tool toward or from the work by manually controlled devices. Another object is to provide such a lathe having electrical means whereby the rapid traverse outward feed apparatus may be employed for a rapid traverse inward feed by means of devices for rearranging the circuit at the option of the operator. Another object is to provide a micrometer stop arrangement for operating limit switches employed in connection with lathes of the previously described types, whereby the tool is caused to halt and change its direction at predetermined points in its cycle of operations.

2,143,258 Jan. 10, 1939 Cam Making Machine Clifford A. Bickel Sidney, OH Toulmin & Toulmin - patent attorneys
2,157,948 May. 09, 1939 Hardening of Metal Surfaces Herbert H. Beeny , England Dyke, Calver & Gray - patent attorneys
This invention relates to the treatment of ferrous surfaces such as are capable of being hardened by being locally heated by means of a burner to a high temperature and then immediately cooled. The flame is progressively applied to the surface at a predetermined rate, the arrangement being such that there is not sufficient time for the heat to be conducted away to the interior of the article before the surface of the latter is quenched. The specification accompanying the co-pending patent application of myself and Arthur H. Lloyd, Serial No. 148,752 describes a particularly satisfactory burner and cooler for treating a ferrous (for example, a cast-iron) surface in this way, and also an unproved form of burner. It is now found that in treating the surface of a cast-iron V-rail in this way there is a tendency for cracks to form along the apex of the rail. This is probably due to the fact of the flames, acting on the flanks of the rail, heating the apex of the rail to too great an extent, this resulting in the apex of the rail being hardened to a greater depth than the flanks of the rail. When a V-rail is to be used as an inverted-V-rail for supporting a machine-tool slide, it is unnecessary for its apex to be hardened as the load is taken by the flanks of the rail. The present invention is concerned with the surface-hardening of the operative face of a V-rail, to be used for supporting a machine-tool slide or some other slide, by flame-heating the flanks of the rail and immediately thereafter cooling them, as specified above; and it involves means acting to prevent the apex of the rail from being hardened in this manner so that the hardened flanks of the rail will be separated from one another by a relatively soft surface along the apex of the rail. Preferably the said means includes a jet of water or other cooling medium arranged to impinge on the apex of the rail in the vicinity of where the flanks are being flame heated, the said jet preferably being directed backwardly. Conveniently the cooling medium from this jet is delivered at a higher pressure than that from the main jets.
2,309,299 Jan. 26, 1943 Method of and Apparatus for Correcting the Lead Error of Screw Threads Clifford A. Bickel Sidney, OH Taulmin & Taulmin - patent attorneys
It is common knowledge that most lead screws in lathes, grinding machines and other machine tools vary more or less in lead throughout their length, and that although these variations may be relatively small, they will be translated to and appear increased in lead screws generated on such machines. Various devices have been designed to cope with this difficulty but the results have not been fully satisfactory since lead errors in thread chasing not only result from inaccuracies in the master lead screw but are due to many variable factors such as temperature variations changes in the material to be chased and deflections caused by work stresses and strains between the work and the cutting tool and between the various moving and guiding parts. It is an object of the invention to provide a lead error correcting device which is simple in operation and construction and easily attachable to a machine tool without impeding the work to be done on said machine tool. Still another object consists in the provision of a lead error-correcting device, which will allow This invention relates to thread chasing, and in particular to means for correcting lead errors in thread chasing of every lead error being corrected while or before the finishing cut is made on the thread to be chased. It is a still further object of the invention to provide a lead error correcting device which will be operable to move the lead screw of the machine tool on which the thread is chased in accordance with the lead errors appearing in said thread, for correcting said errors. It is another object of the invention to provide a lead error correcting device as set forth in the preceding paragraph, in which the movement of the lead screw of the machine tool is translated to indicating means to enable control of the lead screw movement.
2,495,312 Jan. 24, 1950 Power Unit for Machine Tools Clifford A. Bickel Sidney, OH
    Power Unit for Machine Tools Stanley A. Bradenburg Sidney, OH  
    Power Unit for Machine Tools Theodore Foster Sidney, OH  
2,877,655 Mar. 17, 1959 Hydraulic Control for Gear Transmissions Duane B. Eayeart Sidney, OH
    Hydraulic Control for Gear Transmissions Richard J. Flanigan Sidney, OH  
3,103,827 Sep. 17, 1963 Dual Operator for Slides Ned R. Logan Sidney, OH Woodling, Krost, Granger & Rust - patent attorneys