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Manufacturers Index - Van Norman Machine Tool Co.
Patents
This page contains information on patents issued to this manufacturer.

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Patent Number Date Title Name City Description
570,723 Nov. 03, 1896 Milling Machine Charles E. Van Norman Springfield, Hampden County, MA This invention relates to milling machines, and particularly to that class provided with a pivotally-hung tool-carrying head adjustable in a vertical plane to any degree of a circle having for a center the pivot on which said head turns; and the invention consists more particularly in the construction of the driving mechanism for the milling1 tool or cutter, whereby the latter is positively driven by means of shafts having suitable gear connections with each other, said connections being attached to and adapted to move with the horizontally-sliding head to which the tool carrying head is attached.
578,588 Mar. 09, 1897 Milling-machine Charles E. Van Norman Springfield, MA
587,537 Aug. 03, 1897 Combined lathe and milling-machine Charles E. Van Norman Springfield, MA
588,510 Aug. 17, 1897 Milling-machine Charles E. Van Norman Springfield, MA
659,461 Oct. 09, 1900 Engraving and die-sinking machine Frederick D. Van Norman Springfield, MA
741,743 Oct. 20, 1903 Steam-engine Charles E. Van Norman Springfield, MA
765,447 Jul. 19, 1904 Milling Machine Charles E. Van Norman Springfield, Hampden County, MA
938,803 Nov. 02, 1909 Metal-working machinery Charles E. Van Norman Springfield, MA
979,903 Dec. 27, 1910 Tool-holder for lathes Frederick D. Van Norman Springfield, MA
RE13,584 Jun. 24, 1913 Tool-holder for lathes Frederick D. Van Norman Springfield, MA
1,099,218 Jun. 09, 1914 Spindle-bearing-lubricating device Frederick D. Van Norman Springfield, MA
1,102,558 Jul. 07, 1914 Grinding-machine Charles E. Van Norman Springfield, MA
1,141,854 Jun. 01, 1915 Tool-holder for lathes Frederick D. Van Norman Springfield, MA Improvements to 13,584.
1,155,176 Sep. 28, 1915 High-speed-spindle device Frederick D. Van Norman Springfield, MA
RE14,193 Sep. 19, 1916 Watchman's clock Franklin Hardinge Chicago, IL
1,229,352 Jun. 12, 1917 Milling-machine Charles E. Van Norman Springfield, MA This patent date was seen on a Van Norman #10 Duplex Milling Machine. The patent covers the change-speed gearbox.
1,278,570 Sep. 10, 1918 Boring-tool George C. Beck Spokane, WA This patent number was seen in an operator's manual for the Van Norman Per-Fect-O No. 777-S boring bar.
1,445,875 Feb. 20, 1923 Grinding machine Charles E. Van Norman Springfield, MA This lathe-style grinder is intended for use in repairing automotive pistons, wrist pins, valves, and the like.
    Grinding machine Robert W. Ellingham Springfield, MA  
1,515,568 Nov. 11, 1924 Grinding machine George W. Fleming Springfield, MA Improvements to patent 938,803, to particularly adapt it to grinding turbine blades and similarly curved surfaces.
    Grinding machine Robert W. Ellingham Springfield, MA  
1,544,287 Jun. 30, 1925 Grinding machine Charles E. Van Norman Springfield, MA Improvements to patent 1,445,875.
1,646,801 Oct. 25, 1927 Grinding machine Frederick D. Van Norman Springfield, MA
    Grinding machine George W. Fleming Springfield, MA  
1,716,331 Jun. 04, 1929 Method of making collets Byron F. Stowell Springfield, MA This invention relates to manufacturing "double ended split collets", and which are capable of fitting a larger size range than traditional collets, and which are, furthermore, hardened and tempered.
1,722,691 Jul. 30, 1929 Grinding machine Charles E. Van Norman Springfield, MA
1,735,804 Nov. 12, 1929 Collet Byron F. Stowell Springfield, MA This collets have a wide range of adjustment. See also patent 1,716,331.
1,749,514 Mar. 04, 1930 Valve-reseating apparatus James Y. Scott Longmeadow, MA
1,761,059 Jun. 03, 1930 Polishing machine Byron F. Stowell Springfield, MA
    Polishing machine Charles E. Van Norman Springfield, MA  
1,763,201 Jun. 10, 1930 Magnetic throw-off for grinding machines Frederick D. Van Norman Springfield, MA Improvements to patent 13,892.
1,788,475 Jan. 13, 1931 Feed mechanism for grinding machines Charles E. Van Norman Springfield, MA This patent's application was originally part of what became patent 1,722,691 but the original application was divided.
1,812,455 Jun. 30, 1931 Diaphragm chuck Byron F. Stowell Springfield, MA This chuck is intended for "holding the outer races off ball bearings for grinding."
1,830,179 Nov. 03, 1931 Cutting Tool Byron F. Stowell Hampden, Hampden County, MA
1,858,693 May. 17, 1932 Chuck Charles E. Van Norman Springfield, Hampden County, MA
1,868,440 Jul. 19, 1932 Boring machine and method Ewald A. Arp Minneapolis, MN Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,906,241, 1,881,993, and 1,954,034.
"My invention relates to machines for finishing the bore of cylinders. It relates more particularly to machines for use in connection with cylinders of automobile engines, either to finish the bore of new cylinders or to refinish the bore of cylinders which have become uneven through use. An object of the invention is to provide a machine which will give a smooth and uniform finish to the bore of the cylinder making it unnecessary to follow up the cutting operation by a honing operation..."
1,870,350 Aug. 09, 1932 Adjustable boring head Frederick D. Van Norman Springfield, MA
1,881,993 Oct. 11, 1932 Tool attachment device Ewald A. Arp Minneapolis, MN Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034.
This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."
1,881,984 Oct. 11, 1932 Slide Mechanism for Precision Grinding Machines Charles E. Van Norman Springfield, Hampden County, MA
1,906,241 May. 02, 1933 Method and apparatus for predetermining the size of rebored cylinders Ewald A. Arp Minneapolis, MN Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,881,993, and 1,954,034.
This invention relates to the art of boring cylinders and has particular reference to the reboring of worn cylinders of internal combustion motors. One object of the invention is to provide an improved method of predetermining the size of the rebored cylinder without the necessity of making measurements directly upon the cylinder while it is being machined. Another object is to provide an improved mechanism for facilitating the adjustment of the cutting mechanism while the cutter is removed from the boring device...."
1,908,577 May. 09, 1933 Oscillating Grinder Charles E. Van Norman Springfield, Hampden County, MA
RE18,832 May. 16, 1933 Tool attachment device Ewald A. Arp Minneapolis, MN Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034.
This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."
1,918,147 Jul. 11, 1933 Carriage positioning mechanism for grinding machines Byron F. Stowell Springfield, MA This invention's "preferred embodiment" is for "an oscillating grinding machine adapted for the manufacture of races for ball bearings."
1,926,603 Sep. 12, 1933 Automatic feed for grinding machines Byron F. Stowell Springfield, MA This invention's preferred embodiment is for an oscillating grinders adapted for the manufacture of outer races for ball bearings.
1,954,034 Apr. 10, 1934 Equalizing boring guide Ewald A. Arp Minneapolis, MN Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,881,993, and 1,906,241.
This invention is an improvement on patent 1,868,440
1,959,435 May. 22, 1934 Milling machine Newman M. Marsilius Bridgeport, CT Improvements to gang milling machines adapted for any-angle milling, including slot milling, face milling, straddle milling, and continuous milling, and using a turret tool-holder. This patent number was seen on a Van Norman No. 12 milling machine.
1,975,985 Oct. 09, 1934 Method and apparatus for grinding valve seats Byron F. Stowell Springfield, MA
2,036,658 Apr. 07, 1936 Automatic grinding machine Byron F. Stowell Springfield, MA Improvements to patents 1,918,147 and 1,926,603.
2,036,656 Apr. 07, 1936 Valve seat cutter Byron F. Stowell Springfield, MA
    Valve seat cutter Roger S. Pyne Longmeadow, MA  
2,036,657 Apr. 07, 1936 Valve Seat Puller Byron F. Stowell Springfield, Hampden County, MA
2,059,753 Nov. 03, 1936 Universal index head Byron F. Stowell Springfield, MA
    Universal index head James Y. Scott Springfield, MA  
2,076,508 Apr. 06, 1937 Oscillating grinder Frederick D. Van Norman Springfield, MA Grinder adapted to grinding spherical bearing races, which create higher forces against the grinding wheel.
2,113,414 Apr. 05, 1938 Gauge Mechanism Byron F. Stowell Springfield, Hampden County, MA
2,125,442 Aug. 02, 1938 Valve regrinding device Francis P. Healy Springfield, MA Improvements to patent 1,975,985.
2,149,409 Mar. 07, 1939 Oscillating grinder Roger S. Pyne Springfield, MA
    Oscillating grinder Byron F. Stowell Springfield, MA  
    Oscillating grinder Frederick D. Van Norman Springfield, MA  
2,189,604 Feb. 06, 1940 Boring bar guiding mechanism Francis P. Healy Springfield, MA See also patent 2,196,827.
2,196,827 Apr. 09, 1940 Tool guide for boring machines Francis P. Healy Springfield, MA This is a "continuation in part" of the application that became patent 2,189,604.
2,202,425 May. 28, 1940 Hand milling machine Newman M. Marsilius Bridgeport, CT
2,204,855 Jun. 18, 1940 Boring head Francis P. Healy Springfield, MA
2,207,861 Jul. 16, 1940 Boring bar guiding mechanism Francis P. Healy Springfield, MA
2,230,716 Feb. 04, 1941 Table Drive for Milling Machines Frank W. Curtis Springfield, Hampden County, MA
2,233,551 Mar. 04, 1941 Fluid pump Robert W. Ott Stratford, CT
2,263,928 Nov. 25, 1941 Milling machine Newman M. Marsilius Bridgeport, CT
    Milling machine Robert W. Ott Stratford, CT  
2,281,921 May. 05, 1942 Tumble Change Gear Mechanism Frank W. Curtis Springfield, Hampden County, MA
2,289,874 Jul. 14, 1942 Milling Machine Frank W. Curtis Springfield, Hampden County, MA
2,301,525 Nov. 10, 1942 Milling Machine Frank W. Curtis Springfield, Hampden County, MA The original application was divided and a second patent was issued, #2,338,624.
Abstract:
This invention relates primarily to improvements in milling machines, although in certain aspects these improvements may have a wider range of use.
One object of the invention is to improve the arrangement of gearing contained in the knee of a milling machine for driving the various table rates. In particular the invention is concerned with improvements in the manner in which the feed and rapid traverse drives are obtained from a single power drive shaft; in the arrangement of gearing whereby the weight distribution in and the consequent stability of the knee are improved; in the simplification of the distributing gearing for driving the table, saddle, and knee either forward or reverse at the selected rate, and in the arrangement of the gearing to facilitate a unitary control of the change gear mechanism. A further object is to improve the gear shifting control by which the feed rate is determined so that only a single handle need be moved to select the desired rate. A further object is to improve the knee structure so as to give improved stability and guidance to the elevating mechanism and so that the elevating mechanism itself will contribute to the stability of the knee. A further object is to improve the manner of mounting the shaft bearings in the knee to simplify their manufacture and increase their accessibility. A further object is to improve the table operating mechanism.
Claim:
In a machine tool having a bed, a knee vertically movable on the bed, a saddle transversely movable on the knee, a table longitudinally movable on the saddle, and a tool mounted for operation upon work carried by the table; mechanism for moving the knee, saddle, and table sleeve, speed changing mechanism within the knee laterally disposed with respect to said shaft and connecting the main drive with the sleeve, drive shafts for the knee, saddle and table each running from the front of the kneerearwardly, reversing clutch mechanism for each of said drive shafts each including a forward and a reverse gear and being positioned near the front of the knee, and distributing gearing positioned near the front of the knee and connecting the common drive shaft with said reversing clutches.
2,302,744 Nov. 24, 1942 Spindle Control for Machine Tools Frank W. Curtis Springfield, Hampden County, MA
2,304,779 Dec. 15, 1942 Toolhead Unit Frank W. Curtis Springfield, Hampden County, MA
2,308,647 Jan. 19, 1943 Hydraulic Machine Tool Frank W. Curtis Springfield, Hampden County, MA
2,309,241 Jan. 26, 1943 Dividing Head Frank W. Curtis Springfield, Hampden County, MA Claim:
In a dividing head, a body, a spindle mounted in the body for rotation about a longitudinal axis, trunnions on the body having a common axis transverse to the longitudinal axis, a base, saddles on the base one for each trunnion and having a semicircular bearing surface for the trunnions, cap members one for each saddle and having semicircular bearing surfaces complementary to the bearing surfaces of the saddles, means to draw each cap and saddle member toward each other to lock the trunnion against rotation Comprising at abutting surfaces formed, at one end of each saddle and cap, means to hold said surfaces together, flat abutting surfaces on he opposite end of said cap and saddle, the last mentioned abutting surface on the saddle comprising a fiat step formed near the outer edge of he saddle and supporting the flat abutting surface of the cap at its outer edge, a relieved portion extending from the step inwardly to the saddle bearing surface, and means located between said step and inner bearing surface for adjustment to draw said cap and saddle towards each other.
2,325,746 Aug. 03, 1943 Metal Cutting Tool with Inserted Teeth Frank W. Curtis Springfield, Hampden County, MA
2,327,404 Aug. 24, 1943 Milling Machine Frank W. Curtis Springfield, Hampden County, MA
2,328,061 Aug. 31, 1943 Hydraulic Vise Frank W. Curtis Springfield, Hampden County, MA
2,334,581 Nov. 16, 1943 Cross-feed for grinding machines Roger S. Pyne Longmeadow, MA
2,338,624 Jan. 04, 1944 Elevating Mechanism for Machine Tool Knees Frank W. Curtis Springfield, Hampden County, MA Original application 08 Mar 1940, now patent #2,301,525, dated 10 Nov 1942. Divided and this application 27 Nov 1940.
This patented elevating mechanism is similar to that used on the Van Norman Models 26, 36, 28, and 38.
Abstract:
One object of the invention is to improve the knee structure so 'as to give improved stability and guidance to the elevating mechanism and so that the elevating mechanism itself will contribute to the stability of the knee. A further object is to improve the drive and stability of operation of the knee to the end that smooth operation and freedom from chatter will be present even when the elevating mechanism is driven at a rapid traverse rate. A further object is to provide a construction of knee elevating mechanism in which the telescopic parts extending between the vertically movable knee and base will have a maximum protection against dirt and metal chips. A further object is to provide a construction which will prevent leakage of oil from the interior of the knee when, as is preferable, the knee acts as an oil reservoir for the gearing contained in it.
Claim:
A knee structure for milling machines and the like comprising a frame, a hollow knee vertically movable on the frame, a vertical splined shaft journaled for rotation upon the frame and having a free end extending upwardly into the knee, a gear splined to the shaft, distributing gearing within the knee coupled to said gear, and a tubular member having a closed upper end and secured to said gear in position to completely enclose that part of the splined shaft above the gear and within the hollow knee to form an oil seal, said closed upper end being remote from the gear a distance substantially corresponding to the maximum vertical travel of the knee.
2,357,088 Aug. 29, 1944 Cutting Tool Frank W. Curtis Springfield, Hampden County, MA
2,361,995 Nov. 07, 1944 Method of Making Metal Cutting Tools Frank W. Curtis Springfield, Hampden County, MA
2,365,748 Dec. 26, 1944 Hydraulic Circuit Frank W. Curtis Springfield, Hampden County, MA
2,370,580 Feb. 27, 1945 Cross-feed mechanism for grinding machines Roger S. Pyne Longmeadow, MA
    Cross-feed mechanism for grinding machines Edward A. Allen Westfield, MA  
2,381,687 Aug. 07, 1945 Drive for oscillating grinders Roger S. Pyne Longmeadow, MA
    Drive for oscillating grinders Edward A. Allen Westfield, MA  
2,381,648 Aug. 07, 1945 Spark Gap Frank W. Curtis Springfield, Hampden County, MA
2,384,078 Sep. 04, 1945 Throttle Valve for Machine Tool Control Frank W. Curtis Springfield, Hampden County, MA
2,400,767 May. 21, 1946 Grinding attachment Harold Gass New York, NY
    Grinding attachment Constantine Melidoni New York, NY  
2,412,937 Dec. 24, 1946 Boring head Edward A. Allen Westfield, MA
2,413,068 Dec. 24, 1946 Diaphragm chuck Roger S. Pyne Longmeadow, MA This chuck was primarily intended for holding ball-bearing inner races during grinding.
2,416,996 Mar. 04, 1947 Boring bar guiding mechanism Francis P. Healy Springfield, MA
    Boring bar guiding mechanism Edward A. Allen Westfield, MA  
2,429,685 Oct. 28, 1947 Chuck for crankshaft grinders Francis P. Healy Springfield, MA
2,447,334 Aug. 17, 1948 Crankshaft regrinding chuck Francis P. Healy Springfield, MA
2,451,137 Oct. 12, 1948 Contour grinding machine for work pieces each having a hollow spherical section Charles E. White Ashburnham, MA The invention is a machine "for grinding contours on work pieces have spherical surface areas, such as pattern plates or forms used in manufacturing spectacle lenses."
2,470,617 May. 17, 1949 Control for Variable Displacement Pumps William M. Hoddinott Springfield, Hampden County, MA
2,479,973 Aug. 23, 1949 Chuck James Y. Scott Longmeadow, MA This chuck is for holding valve stems while the valve's seating surface is reground
    Chuck Francis P. Healy Springfield, MA  
    Chuck Edward A. Allen Westfield, MA  
2,484,708 Oct. 11, 1949 Work supporting cradle for grinding machines Francis P. Healy Springfield, MA
2,584,499 Feb. 05, 1952 Apparatus for precision bore grinding Roger S. Pyne Longmeadow, MA This invention is primarily intended for grinding grooves in the outer races of ball bearings. See also patent 2,652,663.
2,652,663 Sep. 22, 1953 Method and apparatus for compensating for grinding wheel wear Edward C. Taylor Springfield, MA This invention is primarily intended for grinding grooves in the outer races of ball bearings, and is an improvement to patent 2,584,499.
2,657,470 Nov. 03, 1953 Presetting device for boring tools Francis P. Healy Springfield, MA
    Presetting device for boring tools Edward A. Allen Westfield, MA  
2,727,339 Dec. 20, 1955 Grinding wheel feed for grinding machines Roger S. Pyne Longmeadow, MA
    Grinding wheel feed for grinding machines Richard M. Anderson Springfield, MA  
2,737,760 Mar. 13, 1956 Machine tool apparatus Francis P. Healy Springfield, MA
2,761,981 Sep. 04, 1956 Electro mechanical transducers Albert Axelrod Bronx, NY This transducer is related to radar apparatus on-board an aircraft. The assignee was acquired in 1956 by Van Norman Industries, Inc.
2,851,828 Sep. 16, 1958 Centerless grinder Alexander W. Todd Springfield, MA
    Centerless grinder Russell L. Fleming Springfield, MA  
    Centerless grinder Richard M. Anderson Springfield, MA  
2,851,831 Sep. 16, 1958 Hydraulic work-supporting clamp assembly Francis P. Healy Springfield, MA The suggested application for this work holder is in re-machining an engine head.
565,711 Nov. 04, 1958 Read-out apparatus for movable indicating mechanisms William R. Bliss Denver, CO In 1958, machine tool maker Van Norman Co. acquired Digit-Ometer Co., which became part of Van Norman's Electronics Division in Manchester, NH.
579,568 Jul. 14, 1959 Indicating and recording apparatus Edwin P. Davis Denver, CO
2,894,683 Jul. 14, 1959 Mechanical indicating apparatus for computing machines Edwin P. Davis Denver, CO This patent relates to an electro-mechanical accounting calculator. It was assigned via mesne assignments to Van Norman; presumably it was originally assigned to Digit-Ometer Co. of Denver, CO. See Canada patents 565,711 and 579,568.
2,895,121 Jul. 14, 1959 Read-out apparatus for movable indicating mechanisms William R. Bliss Denver, CO This patent relates to an electro-mechanical accounting calculator. It was assigned via mesne assignments to Van Norman; presumably it was originally assigned to Digit-Ometer Co. of Denver, CO. See Canada patents 565,711 and 579,568.
2,896,139 Jul. 21, 1959 Electromechanical transducer for controlling a tuning condenser in an oscillator circuit Albert Axelrod Bronx, NY This patent is a continuation in part of the application that led to patent 2,761,981; see that patent for more information.
2,897,636 Aug. 04, 1959 Work rest for a centerless grinder Albert H. Tompkins East Longmeadow, MA
    Work rest for a centerless grinder Roger S. Pyne Longmeadow, MA  
2,911,763 Nov. 10, 1959 Work feeding mechanism for a centerless grinder Alexander W. Todd Springfield, MA
    Work feeding mechanism for a centerless grinder Henry P. Kwapien Westfield, MA  
2,919,902 Jan. 05, 1960 Hollow drill Milton J. Steffes Dearborn, MI
2,929,172 Mar. 22, 1960 Machine for cutting a succession of workpieces to a predetermined size Joseph H. Pasell Dartmouth, MA
2,962,584 Nov. 29, 1960 Improvements in or relating to switching devices for signal transceivers Samuel K. Lackoff Manchester, NH
2,969,122 Jan. 24, 1961 Hollow drill Milton J. Steffes Dearborn, MI A division of the application that led to patent 2,919,902.
2,970,407 Feb. 07, 1961 Drill point grinding machine Joseph H. Pasell Dartmouth, MA
2,990,656 Jul. 04, 1961 Automatically operable centerless grinder Albert H. Tompkins East Longmeadow, MA
3,046,491 Jul. 24, 1962 Frequency standard signal generator Samuel K. Lackoff Manchester, NH
3,047,250 Jul. 31, 1962 Reel construction Tore V. Saether Auburn, IN Garrett, Ind., was the home of the Hubbard Spool Company Division of Van Norman Industries, Inc.
3,060,812 Oct. 30, 1962 Milling machine Francis P. Healy Springfield, MA "This invention relates to a milling machine adapted to handle comparatively large and heavy workpieces..."
    Milling machine Edward A. Allen Westfield, MA  
3,070,763 Dec. 25, 1962 Variable attenuators Alfred M. Reslock Suncook, NH
3,082,868 Mar. 26, 1963 Method and apparatus for packaging, shipping and supplying wire Eber J. Hubbard Springfield, MA This patent provides improvements on patent 2,889,921.