Fray Machine Tool Co. - Assigned Patents

Manufacturers Index - Fray Machine Tool Co.

Fray Machine Tool Co.
Glendale, CA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

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Patent Number	Date	Title	Name	City	Description
2,100,513	Nov. 30, 1937	Vise	Lester E. Mershon	Los Angeles, CA	This invention relates to improvements in vises and has for an object thereof the provision of a vise which may be easily and quickly adjusted t and set up in various positions and at different angles and effectively locked in the desired position or angle whereby to facilitate various uses thereof. More particularly, the present invention relates g to improvements in vises of the type disclosed in s U. S. Letters Patent No. 1,548,201, issued August 4th, 1925, to J. R. Long, and wherein the vise body supporting the jaws is rotatably mounted on a post supported by a base; and a locking t means automatically locks the body against turning on the post when the jaws are clamped on the work and releases the body when the jaws free the work. The body is provided with angularly related and intersecting post receiving bores which provide for supporting the body in different positions and for locking the body as aforesaid in any of said positions. An important object of the present invention is to provide a vise of the character described which, in addition to the automatic locking means, is equipped with auxiliary manually operable means which may be actuated at will to releasably lock the body against turning on the post or actuated after the automatic locking action to prevent release of the locking means when the jaws release the work. A further object is to provide a vise of the character described wherein the base is especially constructed to support the post in vertical or horizontal positions as desired, whereby the vise body and jaws may be supported in different positions to best suit the particular work, this arrangement affording a greater number of positions and angles at which the vise may be supported than is possible with a fixed post. Other objects may appear as the description progresses.
2,281,353	Apr. 28, 1942	Full Universal All-Speed Milling Attachment	Kuteman D. Hubbard	Los Angeles, CA	Luther T. Mack - patent attorney This invention relates in general to milling machine attachments but more particularly to an all-angle, all-speed attachment for application to standard milling machines by means of which various and sundry milling operations may be effected which are not possible of accomplishment with other milling devices. An object is to provide a unitary attachment including an individual motor drive which is adapted to be mounted for longitudinal adjustment on and rotatable to an extent of 360 degrees around the usual over-arm of a standard milling machine so as to position a tool carried thereby at any desired angle in a vertical plane relative to the work, on which the tool is adapted to operate. Another object is to provide a tool mounting and driving means rotatably adjustable in a plane other than a vertical plane about the axis on which the unit is bodily adjustable for disposing, the tool in selected horizontal or inclined planes for operative engagement with the work. A further object is to provide a driven spindle for the tool which is suitably incorporated in said unit and includes a source of power such as an electric motor which is adjustably mounted for common adjustment with said spindle and for individual adjustment relative to said spindle for the purpose of quickly and easily changing the driving ratio between the motor and spindle when it is desired to vary the speed of the spindle in the performance of various kinds of work.
2,288,648	Jul. 07, 1942	All Angle Milling Machine	James H. Richards	Glendale, Los Angeles County, CA	Luther T. Mack - patent attorney This invention comprehends the provision of an improved type of milling machine which combines certain features of heavy duty machines of restricted scope and adaptability with features of my invention hereinafter identified, and a primary additional characteristic including a new type of over-arm which is arranged for rotatable adjustment on a base, to an extent of 360 degrees, and is otherwise adjustable in right angular directions on the rotatable head for at least two purposes, to-wit: First: The operative support of an all-angle auxiliary milling attachment having an integrally supported motor which is so mounted as to afford adjustment of a tool relative to the work about two or more axes to an extent of 360 degrees or less and otherwise in different horizontal, vertical and inclined planes. Second: The provision on the base of the machine of a usual tool spindle driven by a separate motor and an out-board bearing for the tool arbor which is carried by the over-arm and is arranged to be operatively and inoperatively positioned, at the will of the operator, through the rotatable and horizontal adjustment of the over-arm on the head. An object, therefore, is to combine in a milling machine, the hereinbefore mentioned features accompanied by suitable devices for effecting the adjustment of the several elements and for supporting the elements in adjusted positions. Thus, the tool or tools required for different operations may be adequately adjusted and supported for performing various operations on the work, either by a single tool carried by the horizontal spindle or by the spindle of the all-angle attachment, or as in some cases, by tools carried by both of such spindles for simultaneous operations on the same or different pieces of work. In considering my present invention I refer to the following pending applications for patent in which structures as shown therein with or without modification, may be utilized for attaining the objects of the instant invention: Serial No. 319,290 filed February 16, 1940, Patent No. 2,349,199; Serial No. 357,021 filed September 16, 1940, Patent No. 2,288,648; and Serial No. 376,324 filed January 28, 1941, Patent No. 2,296,573.
2,296,573	Sep. 22, 1942	Mounting and Drive Means for Milling Machines	James H. Richards	Glendale, Los Angeles County, CA	Luther T. Mack - patent attorney Original application 16 Feb 1940. Divided and this application 28 Jan 1941. This invention relates to mounting and drive means for milling attachments and has for an object the provision, first, of an improved means for detachably and adjustably supporting an allangle milling attachment, together with its drive means on the overarm of a standard milling machine, with a range of adjustment of 360 degrees about the axis of the overarm as well as longitudinally on the overarm to a substantial extent, whereby the complete attachment may be bodily adjusted while the several elements of the attachment may be individually adjusted. A secondary object is to provide for said attachment a comprehensive power transmitting mechanism for selectively operating the tool spindle of the attachment at various speeds, including back gearing devices and a motor, all of which elements are embodied in the attachment which is, as aforesaid, supported on the overarm of a milling machine. An important feature of my invention consists in the provision of a sturdy heavy duty attachment together with improved means for rigidly supporting the attachment for accurate precision work so as to render the attachment effective for practically all of the many operations performed by milling machines, and thereby combining in a single attachment many of the features usually provided in separate devices attachable to a milling machine. A further object is to provide means for mounting a milling attachment so that it may be bodily disposed and held in an out-of-the-way position when not in use and when the machine is being used for purposes other than those adapted to be performed through the instrumentality of my attachment. Another object is to provide certain improvements in the form and structure of the tool spindle support and the mounting means therefor in the provision of a closely coupled joint between said mounting and said spindle support so that the entire attachment may be swung about the axis of the overarm and also about an axis at right angles thereto to an extent of 360 degrees in each case in order that the tool may be accurately positioned and supported at any desired angle relative to the work without vibration during the operation of the attachment. In detail, an object is to provide a mounting for the attachment and a separate support for the tool spindle, which members have engageable flat bearing faces of substantial area for providing a maximum of rigidity, the bearing face on the mounting being spaced from the axis of the overarm on which it is held at a distance not greater than the diameter of said overarm, and the bearing face on said spindle support being spaced from the axis of the tool spindle a distance not greater than the diameter of the spindle support. In addition, one of said bearing faces is provided with an annular reentrant groove concentric with the axis of the overarm and the other bearing face has a plurality of bolts or screws forming attaching members by means of which the mounting and spindle support are clamped together at desired angles, said attaching members having heads interlocked with said groove, and being rotatable in said groove when the attachment is adjusted.
2,302,506	Nov. 17, 1942	Duplicating Attachment for Milling Machines	James H. Richards	Glendale, Los Angeles County, CA	This invention relates to duplicating attachments for milling machines and the principal object is to provide a simple, economical and efficient attachment adapted for application to any conventional milling machine and embodying a tracer element arranged for traversing the surfaces of a work pattern which is to be duplicated and so mounted with respect to the milling tool and stem that when the tool cuts on a work blank to the depth of the surface of the pattern a signal will be afforded the operator, thereby requiring substantially less time of the operator in making frequent observations and measurements to ascertain the depth or extent to which the tool has previously cut. My present improvements are particularly adaptable to milling attachments of my inventions as disclosed in my pending application for patent for All angle milling attachments, filed February 16, 1940, Serial Number 319,290,(patent #2,349,199) in which the cutting tool is universally adjustable relative to the work at any desired angle and in any desired plane, and though the invention is not limited for use to my particular apparatus, I will describe herein its application to such apparatus for illustrating the use and operation of the device. An cb.ject, also, is to provide a duplicating attachment of but few parts and is preferably electrical in character and so mounted on the quill of a milling tool support, with adequate adjustments, that when a pattern and a work blank are similarly mounted upon a bed or work table of a milling machine the tracer and tool will contact the pattern and work blank, respectively, the tracer and tool being in substantial parallelism during a duplicating operation. The invention comprehends, therefore, the provision of an electric signal, such as a low voltage electric lamp arranged for connection with a source of current and where necessary for connection with a transformer in the circuit for reducing the voltage from standard service voltage as when connected with electric supply systems, and a pair of contacts which are spaced apart and between which a contact which is movable with the tracer is disposed, normally engaged with one of said contacts but capable of being swung into contact with the other contact for first indicating to an operator when the required depth of a cut is attained and thereafter the fact that the cut has been made too deep.
2,305,737	Dec. 22, 1942	Boring Attachment for Milling Machines	James H. Richards	Glendale, Los Angeles County, CA	This invention relates to and has for an object the provision of a boring device for milling machines, comprising a head with a stem adapted to be held on the arbor of a milling machine and on which a micrometrically adjustable tool holder is mounted for diametrical movement so as to variably position a boring tool relative to the work, said holder being provided with a plurality of differently positioned sockets for removably receiving a tool stem, so as to maximize the range of a tool in a device of given size. An important object is to provide a device of the character herein described which Will include an annular retaining member pressed or shrunk on the periphery of the head for reinforcing the tool holder against breakage when subjected to the strains occasioned by usage, and at the same time serves to retain and limit the movement of the holder against displacement. A further object is to provide a tool holder having a base member formed with a reentrant groove diametrically across the face thereof and a tool holding member with a correspondingly formed rib on its adjacent side slidably engaging said groove, and a gib in said groove between one margin of the groove and the adjacent edge of said rib whereby a means such as a set screw may engage the gib instead of the rib when the holder is locked in a selected position for use, thereby preventing the impairment of an edge of the rib by frequent tightening of the set screw.
2,349,199	May. 16, 1944	All Angle Milling Machine Attachment	James H. Richards	Glendale, Los Angeles County, CA	Luther T. Mack - patent attorney My invention relates to and has for an object the provision of an improved all angle, full universal milling attachment which is adapted to be mounted on the overarm of a milling machine, and is capable of many and certain micrometric operations heretofore impossible of performance with other types of milling attachments, and moreover, is subject to a more convenient, accurate and efficient use in any of its possible positions and operations. One of the important purposes of my invention is the provision of an attachment of the character described wherein the major axes of adjustment and the parts and elements thereof are so constructed, compactly arranged and closely coupled as increase the strength and stability of the attachment without sacrificing the full universal and all angle adjustments and primarily, to insure accuracy of work in all positions. One of the important features of my attachment is the provision of an improved quill arrangement by means of which the tool may be fed to the work at all angles and positions in a much more convenient and accurate manner than heretofore possible. Another important provision of my invention is that of a novel stop means for limiting the feed and particularly the depth of feed of the tool in a most accurate and efficient manner. Another purpose of my invention is to provide an attachment of the character described in which independently and selectively operable feed means for the quill will make possible accurate and micrometric feeding of the tool to the work to best suit the particular work at hand and many milling operations not otherwise possible. A further purpose is to provide an attachment of the character described which may be readily and easily disposed in an out of the way position when it is desired to use the milling machine proper, exclusively of the attachment. Another purpose of the invention is to provide a milling machine attachment of the character described which includes an improved construction of the spindle housing and mounting means therefor, which latter provides a rotative joint on a horizontal axis close and at right angles to the axis of the overarm to facilitate an accurate positioning of the attachment at any angle desired. Among other features of improvement my invention includes the advantages of such added stability and strength as to enable the work to be finished in one operation or cut, and also provides for a highly desirable micrometric feed whereby small and other work may be accomplished in a highly satisfactory manner. Again, the attachment makes possible grinding, lapping, and drilling and many other operations by reason of the stability, ruggedness, adjustments and feeding provisions as hereinbefore pointed out, and is further improved in that all wearing parts may be properly adjusted to compensate for wear in a particularly novel manner.
2,349,004	May. 16, 1944	Milling Machine	James H. Richards	Glendale, Los Angeles County, CA	This invention comprehends the provision of an improved type of milling machine which combines certain features of heavy duty machines of restricted scope and adaptability with features of my invention hereinafter identified, and a primary additional characteristic including a new type of over-arm which is arranged for rotatable adjustment on a base, to an extent of 360 degrees, and is otherwise adjustable in right angular directions on the rotatable head for at least two purposes, to-wit: First: The operative support of an all-angle auxiliary milling attachment having an integrally supported motor which is so mounted as to afford adjustment of a tool relative to the work about two or more axes to an extent of 360 degrees or less and otherwise in different horizontal, vertical and inclined planes. Second: The provision on the base of the machine of a usual tool spindle driven by a separate motor and an out-board bearing for the tool arbor which is carried by the over-arm and is arranged to be operatively and inoperatively positioned, at the will of the operator, through the rotatable and horizontal adjustment of the over-arm on the head.