Manufacturers Index - Cushman Chuck Co.
Cushman Chuck Co.
Hartford, CT, U.S.A.
Company Website: https://www.cushmanindustries.com/
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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50,691
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Oct. 31, 1865
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Scroll Chuck
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A. F. Cushman |
Hartford, Hartford County, CT |
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88,377
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Mar. 30, 1869
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Chuck
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George B. Fairman |
Rochester, NY |
The object of this invention is to make a chuck in which the jaws can be used, combined or separately, it being often desirable to use the jaws independently, so that the article being turned, may be moved out of the centre when required, without changing the chuck. This is accomplished by turning out the buttons G from the crease e, and moving out the rack A until they will enter the crease c, thereby moving it out of gear with the pinions on the shafts E, which operate the jaws. This allows any one of the jaws to be moved transversely by applying a wrench to the outer end of the pinion-shaft E. Another and great advantage in this arrangement is the rapidity with which the jaws can be moved in and out. The rack being six to one of the pinion in diameter, one turn of it moves the jaws six times as fast as can be done by applying the wrench to the pinion-shaft E, as is the case with the common chuck of this class, and when the jaws are up against the metal to be clamped, the wrench can be applied to the pinion shaft E, and power is obtained, if required, to tighten the jaws.
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120,863
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Nov. 14, 1871
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Improvment in Machinists Lathe Chucks
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Austin F. Cushman |
Hartford, Hartford County, CT |
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121,494
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Dec. 05, 1871
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Improvements in Chucks for Metal-Turning Lathes
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Austin F. Cushman |
Hartford, Hartford County, CT |
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147,106
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Feb. 03, 1874
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Lathe Centers
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Austin F. Cushman |
Hartford, Hartford County, CT |
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309,206
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Dec. 16, 1884
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Lathe-chuck
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Austin F. Cushman |
Hartford, CT |
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371,926
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Oct. 25, 1887
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Lathe Chuck
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Austin F. Cushman |
Hartford, Hartford County, CT |
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1,424,597
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Aug. 01, 1922
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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1,633,828
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Jun. 28, 1927
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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1,837,174
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Dec. 15, 1931
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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George A. Highberg |
West Hartford, Hartford County, CT |
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1,844,445
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Feb. 09, 1932
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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George A. Highberg |
West Hartford, Hartford County, CT |
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1,906,490
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May. 02, 1933
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Chucking Mechanism
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chucking Mechanism
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George A. Highberg |
West Hartford, Hartford County, CT |
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1,945,496
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Jan. 30, 1934
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Press Actuating Mechanism
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Press Actuating Mechanism
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George A. Highberg |
West Hartford, Hartford County, CT |
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1,971,537
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Aug. 28, 1934
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Chuck
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Harry E. Sloan |
Hartford, CT |
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Chuck
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George A. Highberg |
West Hartford, CT |
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2,122,360
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Jun. 28, 1938
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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George A. Highberg |
West Hartford, Hartford County, CT |
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2,170,769
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Aug. 22, 1939
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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George A. Highberg |
West Hartford, Hartford County, CT |
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2,219,851
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Oct. 29, 1940
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Chuck Including Operating Mechanism Therefor
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck Including Operating Mechanism Therefor
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George A. Highberg |
West Hartford, Hartford County, CT |
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2,261,836
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Nov. 04, 1941
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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George A. Highberg |
West Hartford, Hartford County, CT |
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2,563,970
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Aug. 14, 1951
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Power Driven Chuck-Operating Means for Lathes and Other Machines
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Power Driven Chuck-Operating Means for Lathes and Other Machines
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Harry E. Sloan Jr. |
West Hartford, Hartford County, CT |
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Power Driven Chuck-Operating Means for Lathes and Other Machines
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Linwood B. Swanson |
New Britain, Hartford County, CT |
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2,639,135
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May. 19, 1953
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Speed-Controlled Actuacting Device
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Harry E. Sloan |
Hartford, Hartford County, CT |
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2,703,242
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Mar. 01, 1955
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Combination Work and Compensating Jaw Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Combination Work and Compensating Jaw Chuck
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Linwood B. Swanson |
New Britain, Hartford County, CT |
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2,751,824
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Jun. 26, 1956
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Clamping Device
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Clamping Device
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Herbert W. Hickey |
Hartford, Hartford County, CT |
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2,757,010
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Jul. 31, 1956
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Chip Guard for Chucks
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chip Guard for Chucks
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Jerome J. Rutherford Jr. |
Windsor, Hartford County, CT |
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2,759,733
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Aug. 21, 1956
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Expansible Collet
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Harry E. Sloan |
Hartford, Hartford County, CT |
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2,767,993
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Oct. 23, 1956
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Universal Chuck of the Center-Adjustable and Self-Locking Type
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Edward A. Galler |
Windsor, Hartford County, CT |
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2,777,704
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Jan. 15, 1957
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Precision Chuck Jaws
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Harry E. Sloan |
Hartford, Hartford County, CT |
Claims:
This invention relates to precision chuck means, and more particularly to adapter means for modifying a standard serrated jaw chuck to permit independent, precision adjustment of the individual jaws thereof.
The invention here is an improvement upon a related type of chuck disclosed in the patent to Harry I. Schuster, 2,401,971, dated 11 June, 1946.
As in the case of the chuck described in the aforesaid Schuster patent, this invention has especial application to power chucks, that is, chucks of the type in which two or more jaws are simultaneously moved in a radial direction to and from work-engaging position by pneumatic, electric or hydraulic power means. In such chucks, since they are normally used for large volume production work where a particular machining operation is repetitively performed on successive work pieces, itis essential to provide a precise adjustment of the individual work-engaging jaw elements of the chuck to insure fast and accurate gripping of the Work piece and proper centering thereof in the lathe or other machine tool. The present invention affords an effective means of accomplishing the-foregoing in a manner which has certain very desirable advantages over generally similar means heretofore employed for this purpose. |
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2,821,404
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Jan. 28, 1958
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Collet Chuck with Internal Work Stop Provisions
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Harry E. Sloan |
Hartford, Hartford County, CT |
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2,843,389
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Jul. 15, 1958
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Chuck
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Harry E. Sloan |
Hartford, Hartford County, CT |
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Chuck
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Linwood B. Swanson |
New Britain, Hartford County, CT |
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2,847,226
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Aug. 12, 1958
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Universal Chuck of the Center-Adjustable Type
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Harry E. Sloan |
Hartford, Hartford County, CT |
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