Cushman Chuck Co. - Assigned Patents

Manufacturers Index - Cushman Chuck Co.

Cushman Chuck Co.
Hartford, CT, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
50,691	Oct. 31, 1865	Scroll Chuck	A. F. Cushman	Hartford, Hartford County, CT
88,377	Mar. 30, 1869	Chuck	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.
120,863	Nov. 14, 1871	Improvment in Machinists Lathe Chucks	Austin F. Cushman	Hartford, Hartford County, CT
121,494	Dec. 05, 1871	Improvements in Chucks for Metal-Turning Lathes	Austin F. Cushman	Hartford, Hartford County, CT
147,106	Feb. 03, 1874	Lathe Centers	Austin F. Cushman	Hartford, Hartford County, CT
309,206	Dec. 16, 1884	Lathe-chuck	Austin F. Cushman	Hartford, CT
371,926	Oct. 25, 1887	Lathe Chuck	Austin F. Cushman	Hartford, Hartford County, CT
1,424,597	Aug. 01, 1922	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
1,633,828	Jun. 28, 1927	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
1,837,174	Dec. 15, 1931	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	George A. Highberg	West Hartford, Hartford County, CT
1,844,445	Feb. 09, 1932	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	George A. Highberg	West Hartford, Hartford County, CT
1,906,490	May. 02, 1933	Chucking Mechanism	Harry E. Sloan	Hartford, Hartford County, CT
		Chucking Mechanism	George A. Highberg	West Hartford, Hartford County, CT
1,945,496	Jan. 30, 1934	Press Actuating Mechanism	Harry E. Sloan	Hartford, Hartford County, CT
		Press Actuating Mechanism	George A. Highberg	West Hartford, Hartford County, CT
1,971,537	Aug. 28, 1934	Chuck	Harry E. Sloan	Hartford, CT
		Chuck	George A. Highberg	West Hartford, CT
2,122,360	Jun. 28, 1938	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	George A. Highberg	West Hartford, Hartford County, CT
2,170,769	Aug. 22, 1939	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	George A. Highberg	West Hartford, Hartford County, CT
2,219,851	Oct. 29, 1940	Chuck Including Operating Mechanism Therefor	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck Including Operating Mechanism Therefor	George A. Highberg	West Hartford, Hartford County, CT
2,261,836	Nov. 04, 1941	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	George A. Highberg	West Hartford, Hartford County, CT
2,563,970	Aug. 14, 1951	Power Driven Chuck-Operating Means for Lathes and Other Machines	Harry E. Sloan	Hartford, Hartford County, CT
		Power Driven Chuck-Operating Means for Lathes and Other Machines	Harry E. Sloan Jr.	West Hartford, Hartford County, CT
		Power Driven Chuck-Operating Means for Lathes and Other Machines	Linwood B. Swanson	New Britain, Hartford County, CT
2,568,092	Sep. 18, 1951	Swivel connection for air operated chucks	Harry E. Sloan	Hartford, CT	This patent date was seen in a catalog for Cushman air-operated chuck.
		Swivel connection for air operated chucks	George A. Highberg	West Hartford, CT
2,599,664	Jun. 10, 1952	Swivel connection for air--perated chucks	Harry E. Sloan	Hartford, CT	This patent date was seen in a catalog for Cushman air-operated chuck, and is an improvement to patent 2,568,092.
2,639,135	May. 19, 1953	Speed-Controlled Actuacting Device	Harry E. Sloan	Hartford, Hartford County, CT
2,697,612	Dec. 21, 1954	Lightweight chuck	Harry E. Sloan	Hartford, CT	This patent date was seen on a Cushman "Wedge-Operated" air chuck.
2,703,242	Mar. 01, 1955	Combination Work and Compensating Jaw Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Combination Work and Compensating Jaw Chuck	Linwood B. Swanson	New Britain, Hartford County, CT
2,732,216	Jan. 24, 1956	Indexing-type chuck	Harry E. Sloan	Hartford, CT	This patent date was seen in a Cushman catalog for their "2-jaw indexing chucks".
		Indexing-type chuck	Jerome J. Rutherford	Windsor, CT
		Indexing-type chuck	Herbert W. Hickey	Hartford, CT
2,751,824	Jun. 26, 1956	Clamping Device	Harry E. Sloan	Hartford, Hartford County, CT
		Clamping Device	Herbert W. Hickey	Hartford, Hartford County, CT
2,757,009	Jul. 31, 1956	Chucks	Harry E. Sloan	Hartford, CT	This patent date was seen on a Cushman catalog for their "pinch-type jaws", along with patents 2,757,010, 2,904,339 and 2,860,884.
		Chucks	Herbert W. Hickey	Hartford, CT
2,757,010	Jul. 31, 1956	Chip Guard for Chucks	Harry E. Sloan	Hartford, Hartford County, CT
		Chip Guard for Chucks	Jerome J. Rutherford Jr.	Windsor, Hartford County, CT
2,759,733	Aug. 21, 1956	Expansible Collet	Harry E. Sloan	Hartford, Hartford County, CT
2,767,993	Oct. 23, 1956	Universal Chuck of the Center-Adjustable and Self-Locking Type	Edward A. Galler	Windsor, Hartford County, CT
2,777,704	Jan. 15, 1957	Precision Chuck Jaws	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.
2,821,404	Jan. 28, 1958	Collet Chuck with Internal Work Stop Provisions	Harry E. Sloan	Hartford, Hartford County, CT
2,825,572	Mar. 04, 1958	Compensating scroll chuck	Harry E. Sloan	Hartford, CT	This patent date was seen in a Cushman catalog for compensating scroll chucks.
		Compensating scroll chuck	Alban Collette	Newington, CT
2,843,389	Jul. 15, 1958	Chuck	Harry E. Sloan	Hartford, Hartford County, CT
		Chuck	Linwood B. Swanson	New Britain, Hartford County, CT
2,847,226	Aug. 12, 1958	Universal Chuck of the Center-Adjustable Type	Harry E. Sloan	Hartford, Hartford County, CT
2,860,884	Nov. 18, 1958	Clamping jaws for chucks	Harry E. Sloan	Hartford, CT	This patent date was seen on a Cushman catalog for their "pinch-type jaws", along with patents 2,757,010, 2,757,009 and 2,904,339.
		Clamping jaws for chucks	Herbert W. Hickey	Hartford, CT
2,867,443	Jan. 06, 1959	Power-operated chuck of the compensating type	Linwood B. Swanson	Newington, CT	This patent date was seen on a Cushman Series 9400 compensating-jaw chuck.
RE24,684	Aug. 18, 1959	Power-operated chuck of the compensating type	Linwood B. Swanson	Newington, CT
2,904,339	Sep. 15, 1959	Centering chucks	Linwood B. Swanson	Newington, CT	This patent date was seen on a Cushman catalog for their "pinch-type jaws", along with patents 2,757,010, 2,757,009 and 2,860,884.
		Centering chucks	Jerome J. Rutherford	Granby, CT