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Publication numberUS1218216 A
Publication typeGrant
Publication dateMar 6, 1917
Filing dateMay 17, 1912
Priority dateMay 17, 1912
Publication numberUS 1218216 A, US 1218216A, US-A-1218216, US1218216 A, US1218216A
InventorsRudolf Schmid Jr
Original AssigneeAllis Chalmers Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1218216 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Patented Mar. 6, 1917.





To all whom it may concern:

Be it known that I, RUDOLF Scrum), J r., a citizen of the United States, residingat West Allis, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Connectors, of which the following is a full, clear, and exact specification.

My invention relates to connectors for electrical conductors.

It is the object of my invention to provide a connector for electric conductors the parts of which can be readily assembled and taken apart,'said parts being held stationary with respect to each other when assembled.

The invention is illustrated on the accompanying sheet of drawings in which Figure 1 is a longitudinal sectional view of my connector; and,

Fig. 2 is a longitudinal sectional view of a modification of the connector shown in Fig. 1.

The various novel features of my invention will be apparent from the description and drawing, and will be particularly set forth in the appended claims.

This connector for electric conductors includes a sleeve 10 having a reduced portion 11 which-passes through an opening 12 in any suitable base or support 13. The re duced portion 11 of the sleeve 10 is provided with an annular groove 14 adjacent one. side of the base for the reception of r a resilient member or split ring 15, which is adapted to prevent relative movement between the base 13 and sleeve 10 when the resilient member 15 is set in place. This reduced portion of the sleeve 10 forms a shoulder 16 which presses against the base 13 and is held there by the resilient member 15. The sleeve 10 is also provided with a projection 17 which occupies a notch 18 in the base 13 to prevent turning of the sleeve within the base. Located within the sleeve 10, as indicated in Fig. 1, are two preferably duplicate interchangeable complementary conducting members or terminals 19 and 20 which are adapted to be electrically connected and held in mechanical engagement with each other by a screw 21 which passes through the overlapping portions of said terminals. This screw passes into an opening 22 in said sleeve which is sufiiciently large to receive the Specification of Letters Patent.

Patented Mar. 6, 1917.

Application filed May 17, 1912. Serial No. 898,004.

head 23 of the screw. The head 23 of the screw normally projects into the opening 22 of the sleeve and in this way prevents relative movement between the terminals 19 and 20 and the sleeve 10. It is therefore apparent that the screw 21 not only retains the terminals in electrical and mechanical engagement with each other, but also prevents relative movement between said terminals and said sleeve.

In the modification shown in Fig. 2 the parts are practically the same as shown in Fig. l with the exception that the sleeve 25 is provided with shoulder portions 26 which are normally engaged by cooperating shoulder portions 27 on the terminals 28 and 29. In this case the screw 30 holds the terminals 28 and 29 in good electrical and firm mechanical contact with each other and lies completely within the terminals. When this screw 30 is in the position shown in Fig. 2 relative movement between the terminals and sleeve is prevented by the cooperating shoulders 26 and 27 of the sleeve and terminals respectively.

By removin the screw and the resilient member in eit er of the connectors shown, all of the parts may be readily separated. Furthermore, when the parts are put together, all of said parts are held stationary with respect to each other.

There may be various modifications of the precise form and arrangement herein shown and described, and it is my intention to cover all such modifications and arrangements which do not involve a departure from the spirit and scope of my invention as set forth in the appended claims.

What I claim as new is:

1. A coupling for electrical conductors comprising a sleeve having a portion of uniform bore and an opening from the outside to the bore, interchangeable terminal ele ments having similar contact portions within said sleeve portion of uniform bore, and means capable of acting independently of said sleeve for connecting said terminal elements together with the contact portions in engagement, said means cooperating with said sleeve to limit the axial movementof said terminal elements relative to said sleeve.

2. A coupling for electrical conductors comprising a sleeve having a portion of uniform bore and .an opening from the outside to the bore, interchangeable terminal elements having similar contact pmtions within vsaid sleeve portion of un1formbore, a screw capable of acting indep'endentl of 'said'sleeve ,for connecting said termina tel ments with the contact portions in engagement, said screw being insertible through the opening in said sleeve, and a portion oi said screw (projecting radially outsidev the bore of sai sleeve whereby the connected terminal elements are restrained from axial changeable terminal elements having similar contact portions within the bore of said sleeve, instrumentalities for'connecting said terminal elements together with' the contact portionsthereof in engagement and for securing said elements against lon' 'tudinal movement relative to said sleeve w ile said elements are connected together, said instrumentalities including a screw element insertible to operative position through the opening in said sheave, v I

In testimony whereof I ailix my signature, in the presence of two witnesses.


Witnesses Cms. L. BYRON,

Ron. E. S'ronL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2420826 *Mar 24, 1944May 20, 1947Louis J IrrgangStrain relief for electrical conductors
US2478082 *Oct 24, 1945Aug 2, 1949Aircraft Marine Prod IncElectrical connector
US2568764 *Feb 28, 1948Sep 25, 1951Int Standard Electric CorpElectric current rectifier
US2576537 *Jul 29, 1947Nov 27, 1951Burndy Engineering Co IncSubmersible type insulated connector
US2712566 *Sep 29, 1952Jul 5, 1955Harry S MatthewsInsulator for neon sign letters
US2783297 *Oct 23, 1953Feb 26, 1957Thomas & Betts CorpClevis-forming electrical connector
US3109662 *Mar 2, 1961Nov 5, 1963Carl V BergstromFlexible sealing grommet
US3189358 *Feb 7, 1962Jun 15, 1965Bendix CorpMeans to seal a movable tubular member
US3708612 *Jul 2, 1971Jan 2, 1973Anderson Electric CorpElectrical bushing assembly
US4165105 *Dec 27, 1977Aug 21, 1979General Electric CompanyCabinet transition sleeve
US4186945 *Dec 27, 1977Feb 5, 1980General Electric CompanyTransition sleeve for a cabinet or the like
US4905443 *Jan 28, 1988Mar 6, 1990Sutcliffe Desmond R RNode member for use in building a geodesic structure
US5527191 *Feb 24, 1995Jun 18, 1996Toronto Electric CommissionersConnector for use in cable splices
US5973271 *Dec 11, 1997Oct 26, 1999Sumitomo Wiring Systems, LtdGrommet assembly including elastic pressing member
US5977486 *Dec 11, 1997Nov 2, 1999Sumitomo Wiring Systems, Ltd.Grommet assembly and method of attaching same to a vehicle
US6844502Mar 19, 2004Jan 18, 2005Emerson Electric Co.Hermetically sealed current conducting terminal assembly
US8822845 *Apr 24, 2009Sep 2, 2014Robert Bosch GmbhCable sleeve for a hand-held power tool
US20110100708 *Apr 24, 2009May 5, 2011Justus LamprechtCable sleeve for a hand-held power tool
DE1206978B *Sep 5, 1963Dec 16, 1965Bosch Elektronik GmbhSchraubklemme fuer elektrische Leiter
U.S. Classification174/84.00S, 277/606, 16/2.1, 277/607, 174/153.00R, 174/650, 403/197, 403/362
Cooperative ClassificationH01R4/60