US1894984A - Battery terminal connection - Google Patents

Description

y Jan. 24, 1933. o y L.. E. ERICKSEN ET AL 1894,984

BATTERY TERMINAL CONNECTION Filed Sept. 2, 1930 u MNHN mhh Mmmm lo LUL/m72 E EFP/c/fE/v A s A LHAMMa/vs INVENTOR ATTORNEY Patented Jan. 24, 1933l UNITED sTATEs PATENT OFFICE LoUErrz E. EarcxsEN AND ASA A. HAmloNs, E PLAINS, MoN'rANA BATTERY TERMINAL CONNECTION Application led September-2, 1930. Serial No. 479,242;

Our present invention relates to improvements in a battery terminal connection designed to both provide and maintain a tight electrical connection between the post of the battery and the clamp for the lead or conductor.

In carrying out our invention we contemplate the provision of a hollow split binding post capable of being readily and conveniently expanded within the clamp of theilead or conductor to insure an exceptionally tight and efficient electrical contact between said arts.

Another object of our invention resides in the provision of a noncorrosive expansion element adapted to be forced into'the binding post of the battery to expand the latter into effective engagement with the clamp of the lead or conductor.

It is also the object of our present invention to embed the conducting wire into the .clamp therefor, and thus prevent expansion of said clamp when the latter is subjected to the expansive pressure of the binding post, sq,that a tight and efficient electrical contact will always be maintained therebetween.

A further object of importance resides in the provision of a battery terminal connection of the above mentioned character, by

means of which the lead or conductor can be either attached to or removed from the binding post with a minimum of time and effort.

The nature and advantages of the invention will `be readily understood when the following detail description is read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as 40 claimed. f

' In the drawing forming part of this application like numerals ofreference indicate similar parts in the several views and wherein:

Figure 1 is a fragmentary side elevation of a battery illustrating one embodiment of the invention.

Figure 2 is a top plan view thereof.

Fi ure 3 is a View similar to Figure 1 showing the battery connection in section.

Figure 4 is a view similar to Figure?) of a modified construction.

Figure 5 is a sectional view on line 5-5 of Figure 4.

Referring to the drawing in detail 10 represents generally a battery of ordinary well known construction, and wherein the binding post is indicated at 11. The usual conductingwire or lead 12 is equipped with a ring-li e clamp 13 designed to surround or embrace the binding post 1l. In accordance with the present invention, the binding post 11 is constructed to permit of its expansion within the ring-like clamp 13, with a view of both effecting and maintaining Van exceptionally tight and ethcient electrical contact between said parts. 'Vhile this idea may be carried into effect in various ways, we preferably construct the binding post 11 with a, centrally located bore 14, which extends throughout the major portion of the length of said post, and split the post at diametrically opposite points as at 15. This provides 'a substantially hollow post wherein the separated sections 16 defined by the slits 15 are capable of being expanded for the purposel above mentioned.

While any suitable means ma, be employed to effect an expansion of said post within the ring=like clamp 13, we preferably employ a tapered plug 17 adapted to be received by the bore 14 of the post as illustrated. The upper end of the plug is provided with a square or other irregular portion 18`toaccommodate a suitable tool, by means of which the plug can be conveniently twisted while inserting the plu within the bore 14 or removing it there rom as the occasion may re, quire. The plug itself is constructed of non` corrosive material and is preferably thread- 90 ed, although it can be otherwise suitably roughened to insure effective engagement with the post 11 when inserted within th bore 14 thereof.

It is manifest that after the ring-like 95 clamp 13 has been placed about the post 11,

the latter can be easily and conveniently expanded within the clamp, thereby causing a very tight and exceptionally good electrical contact between the post 11 and the ring-like 100 clamp 13. Furthermore when the parts are associated as illustrated in the drawing, it is practically impossible for therclalnp 1,3 to work loose or separate itself from the binding post 11.2, On the other hand the clamp 13 can be conveniently removed from the post when desiredby simply removing the plug 17, and forcing the separated sections 16 of the post toward each other a sufiicient dis- 1` tance, to permit the clamping rin to be removed from the post by means o? pliers or an other suitable tool.

nfFiigures 4 and 5 we have illustrated a slightlymodified form of the invention 15 wherein the binding post 11, clamping ring 13, and expansion plug 17 are of the same construction as hereinabove described, withA the exception that the clampin ring 13 has the terminal end 2O of the con uctir'g cable 2 cast or otherwise embedded entirely in the ring. The portion surrounding the binding post is flattened as shown at 19. In other words the wire 20 is embedded within the clamping ring 13 so that no wire or metal' 25 other than the lead of the ring is exposed for direct contact with the binding post 11. The importance of this construction, however, resides in the fact that the wire 20 when embedded in the clamping ring 13 prevents ex- Y, o pansion of the latter when it is subjectedto theexpansive pressure of the binding post, incident to the insertion of the plug 17 within ythe .bore of the post. Consequently the clamping ring 13 can not he in any way distended or enlarged, under the expansive pressure ofthe binding post, which fact insures a tight electrical connection between these lWhileit isbelieved that from the foregoing o description the nature and advantages of the l inventionwill-be readily apparent',- we desire to have. it-understood that we do not limit ourselves to what is herein'ilIustrated and described, and thatfsuch changes may be resorted to when desired ,as fall within the sco e of what is claimed.

aving thus fully described our invention, what we claim as'newv and desire to secure by im A batter .,terminal'connection comprising an expansi le binding'post, a connector ring snugly embracing said ost, y'means `for expanding the latterto e ect and maintain a tight electrical connection between said post and ring, and a conductor having an annular terminal end embedded within said ring and forming a reinforcing ring within the connector ring. l.

In testimony whereof we affix our signatures. A

LOURITZ E. ERICKSEN. ASA A. HAMMONS.

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