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Publication numberUS1666991 A
Publication typeGrant
Publication dateApr 24, 1928
Filing dateAug 25, 1925
Priority dateAug 25, 1925
Publication numberUS 1666991 A, US 1666991A, US-A-1666991, US1666991 A, US1666991A
InventorsSidney Cohen
Original AssigneeSidney Cohen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrical connecter
US 1666991 A
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Description  (OCR text may contain errors)

April 24, 1928.

' 5. COHEN ELECTRICAL CONNECTER Filed Aug. 25, 1925 N E M C Y E N 0 S vwewtoz Patented Apr. 24, 1928.



Application filed August 25, 1925. Serial No. 52,437.

This invention relates to improvements in electrical connectors for connecting electric conductors to terminal posts.

The principal object of my invention is to provide a connecter of this character which affords suitable clamping means capable of attaching itself to the end of a flexible wire used in telephone, radio and other electric instruments.

A further object of the invention is the provision of a tapered sheath of insulating material adapted to slide over the clamping jaws of the connecter to hold the jaws in clamping position and at the same time afl'ord ample insulation for the metal parts of the conductor.

A still further object of the present invention is to provide a construction and arrangement with which the clamping jaws may be forced to ofi'set the flexible portion of the conductor projecting therebetween to secure gripping and contact making engagement with the conductor.

The invention is illustratively exemplified in the accompanying drawing, in which Figure 1 is a plan view of the connecter and Figure 2 is a longitudinal sectional view of the same with the jaws in clamping position:

' Figure 3 is an elevational view of the connecter showing the jaws parted, and Figure 4 is a transverse sectional View taken on the lines 4-4 of Figure 2.

Referrin to the drawings, 10 denotes a U-shaped shank portion having a lateral extension 11 projecting from one end and terminating in an suitable terminal connection 12. The c osed bottom portion of the shank 10 is provided with a struck up bead 13 about midway the length of the shank, and ad'acent the end having the extension 11 is pivotally or otherwise mounted a jaw 14, which folds into the Ushaped shank 10 and is provided with a notch 15 in its underside to coincide with the raised bead 13 on the inner surface of the shank. Projecting In order to insure proper holding of the jaw 14 and shank 10 in clamped position a tapered cylindrical sheath 18 of insulating material is slidably mounted about the shank 10 so as to bring the small end over the open end of the latter and jaw 14.

To attach a connecter of the character just described, the flexible end of the conductor wire 17 is threaded through the smaller end of the sheath 18 and then placed over the bottom of the shank 10 so as to bring the end under the hinged end of the jaw 14. The jaw 14 is thereafter collapsed within the shank 10 and the wire 17 will be pressed about the bead 13 and into the notch 15 where the tooth 16 will bite into or bear against the wire be 0nd the bead. Then the sheath 18 is move over the shank and jaw until the tapering wall of the sheath engages the upper free end of the jaw and forces it to remain in clamping position.

It will be clear, that when the shank 10 and jaw 14 are in clam ing position about the flexible conductor 1 as illustrated in Figure 2, any strain brought about by a ull on the conductor will tend to draw the atter against the offset portions in the shank and jaw and a ainst the tooth 16. The close engagement 0 the jaw and shank with the conductor also insure perfect electric contact between the parts,

Having now described my invention what I claim and desire to secure by Letters Pat ent is: I

In a connecter for flexible electric couductors, the combination of a shank U- shaped in cross section having a terminal connection integral with one end and an upset bead rojecting from the inside of the closed si e of the shank, a jaw pivotally mounted in the terminal connection end of the shank and having its underside provided with a notch to coincide with the bead and 9b a tooth to bite into the interposed flexible. conductor, and a tapered insulating sheath slidable over the free ends of the jaw on said shank to force the two members into clamping position about the conductor.

In testimony whereof he has aflixed his signature. I


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2482966 *Aug 21, 1946Sep 27, 1949Cook William HTerminal mounting electric fitting
US2572753 *Nov 15, 1948Oct 23, 1951Leslie V W SchraderTerminal having lever clamping means to secure a conductor thereto
US2657371 *Jun 1, 1950Oct 27, 1953Ohio Brass CoCable clamping device for feeder taps
US2716227 *Sep 1, 1953Aug 23, 1955Cook John PElectrical connector for attachment plugs having means to attach conductors thereto
US2964727 *Aug 5, 1957Dec 13, 1960Hebeler Edward SCable connections
US3030604 *Feb 1, 1960Apr 17, 1962Robert E BreidenthalApparatus for connecting a plurality of conductors
US3045205 *Jun 26, 1959Jul 17, 1962Burndy CorpClamp connector
US4413872 *May 11, 1981Nov 8, 1983Amp IncorporatedPreloaded electrical connector
US4564569 *Aug 10, 1984Jan 14, 1986Frank PechalBattery terminal connector
US4943246 *Sep 7, 1989Jul 24, 1990Gilbert Hugh HElectrical connector for wire connection
US6712649Dec 27, 2001Mar 30, 2004Smk CorporationPlug
EP1317029A1 *Nov 29, 2001Jun 4, 2003SMK CorporationPlug
U.S. Classification439/750, 439/864, 439/725
International ClassificationH01R4/50, H01R4/10
Cooperative ClassificationH01R4/10, H01R4/50
European ClassificationH01R4/50, H01R4/10