US1225297A - Connector and connection for storage batteries. - Google Patents

Description

T A. WILLARD. CONNECTOR AND CONNECTION FOR STORAGE BATTERIES. APPLICATION FILED JULY 16,1915.

1%?35397 Q Patented May 8, 1917.

25 W WM fizz-125w UNITED THEODORE A. WILLARD, OF CLEVELAND, OHIO, ASSIGNOR TO WILLARD STORAGE BATTERY COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF WEST VIRGINIA.

Specification of Letters Patent.

Patented May 8 1911.7.

Application filed July 16, 1915. Serial No. 40,188.

T 0 all whom it may concern Be it known that I, 'lnnonomc A. NIL-- LARD, a citizen of the United States, residing at Cleveland. in the county of (uyahoga and State of Ohio, have invented a certain new and useful Improvement in (onnectors and Connections for Storage Batteries. of which the tollowing is a full, clear, and exact description.

This invention relates to a terminal connector and connection for storage batteries, and has for its chiel olnect to provide a construction which overcomes many of the disadvantages ol prior tapered plug connections employed heretofore on storage batteries. This application is a continuation of and covers a modification of a somewhat similar construction constituting the subject matter of a companion application Serial.

No. 40,185) filed by me of even date here- 7 with.

One of the more specific ()bJGCfS of the invention, is to provide a connection which is inexpensive, strong, compact and durable.

and wherein the cooperating parts including the battery connector, have low resist ance and have such contacting area and are held together so firmly that the connection or joint has low resistance and acid is prevented from creeping between the contacting surfaces. A further object is to provide a connection having a minimum height and which can be easily assembled or taken apart.

A still further object is to provide a connection having the above mentioned characteristics wherein the main contacting terminal members are or may be formed of sheet metal pnnchings.

The above and other. objects are attained. by my invention, Which may be briefly summarized as consisting in certain novel details of construction and combinations and arrangements of parts which will be described in the specification and set forth in the appended claims.

In the accompanying sheet of drawings, Figure 1 is'a top plan view of a portion of the battery equipped with my improved connector-and connection; Fig. 2 is a sectional view through the several parts of the connection; Fig. 3 is a view showing the main parts disconnected; and Fig. 4 is a view similar to Fi 2 showing a. modification.

the terminal 1:).

Referring now to the drawings, 10 represents a battery jar. and 11 a battery terminal or connector which is preferably formed of lead or lead alloy. This connector has a body portion provided with a socket which receives the usual terminal postll project-- ing up through the cover of the battery and lead-lnirned to the post. The connector is provided with a' lateral extension 12 projecting from the body of the connector near the cover and offset or displaced vertically from the top of the connector. Embedded in this connector is an insert 13 ot' relatively hard good current conducting material, snchas copper or brass. This insert, which is preferably formed ol' a sheet metal punching, extends through the extension 12 into the body portion ot the connector, where it is provided with a portion in the form of an annulus extending about the socket and post. At its other end the insert is provided with a conical boss or head 1'1 threaded on the interior and projecting through the top of the lateral extension 12.

The other main cooperating part of the connection onsists of a terminal 15 of a flexible electric conductor 16. this terminal being also formed from a sh et. metal stampin;- or punching of good conducting material. such as copper or brass, and being provided near its end with an internally'and externally tapered l aid or boss 17, the taper of which coincides with the taper of the part 14- of the insert.

The tapered projection l? oi the terminal 15 fits down onto the outer tapered surface of the. part 1% ot-the insert, as shown in Fig. l

2. and these cooperating tapered parts are clamped very tightly together by a screw 18 provided with a threaded shank-which engages in the threaded opening of the tapered part of the insert and in the preferred construction with a head having an interiorly tapered flange 19 which fits down onto the exteriorly tapered projection 17 of This flange is inclined or tapered in conformity with the taper of the other two parts so that the three elements 14., 17 and 19 are nested. so to speak. and there is a good area of contact between each pair of engaging" parls.

In Fig. l l have shown a modification which is oi the geniacoustruction as that 'shOWn in the preccihng figures. except the clamping screw here, designated :20 is provided with a plain head without the llange 19, and the part which engages the outer tapered surface of the tapered portion 17 ot' the conductor terminal is in the torm ot' a separate piece consisting of a cupped washer having inner and outer tapered surfaces.

The tapered part of the insert which projeets front the connector. the terminal 15. the washer 21 of Fig. l. and all of the clamping screw except the threaded shank. will he coated with lead so that these parts will not he corroded hy'acid. This may he done hy plating. or the lead may he cast onto the parts. The coating is indicated in Figs. 2. 3 and r, and is designated 22. When the screw is tightened the tapered part oi the terminal 13 is clamped very tightly lietwcen the other two tapered parts with the result that an exceedingly tight. joint is provided which has very low electri -al resistance and the surfa es of the cooperating parts are so tirm-ly clamped together that acid will not creep hetween the surfaces so as to corrode them. ln consequence. the parts can he easily disasseinhled when desired and will not Stltih as has heen the case with most of the tapered plug con ueetors used heretofore.

Additionally. the construction while very etl'icient from mechanical and electrical standpoints. is inexpensive in viow ot the low cost of the insert 13 and conductor terminal 13 and the rapidity with which they may he stamped out; and formed into shape. A still further important advantage resides in the low overall height of the connection as a whole. this heing due to the nesting or telescoping action of the parts. and the fact that the tapered part of the insert projects from the extension 12 which is hclow the top of the connector ll. tt may he mentioned also that the construction admits of the terminal 17 heing pointed or turned in my direction with respect to the hatter) terminal ll.

llaving thus descrihed my invention. what 1 claim is:

l. hattery connector comprising a hod) having an insert of relatively hard material. said insert heing composed ot a sheet metal stamping provided with a tapered part projecting from the connector.

' .2. hattery connector comprising a'hody having a lateral extension. a sheet metal insert of relatively hard material in said cx tension and provided with a tapered terminal portion.

25. hattery connector comprising a body having a socket for a terminal post and I p. having a relatively hard sheet metal insert with a portion extending ahout the oats and a tapered portion projecting from the connector and adapted to he attached to a conductorterminal.

t. connection adapted particularly l'or storage hatteries comprising a hattery terminal having an insert ol' relativelv hard material with a part projecting from the terniinal.a conductorterminal havinga tapered portion which engages the projecting part of the insert. and clamping means for t'astening the parts together and provided with a portion tapered which tits onto the tapered part ol the conductor terminal.

.3. connection adapted for storage hatteries comprising a hattery terminal having a tapered part: a conductor terminal having a part with tapered surl ac'es. one tapered snrl'ace engaging the taperedpart of the hattery terminal: and clamping means hav ing a tapered surt'aee tilting onto another tapered surl'ace ot' the conductor terminal.

1. in a connection tor storage hatteries. a col neetor having an insert composed ol' sheet metal stamping provided with a tapered part. a conductor terminal formed from sheet metal and having a tapered part.

and a threaded clamping memher t'or drawing the tapered parts together.

T. In a connection l'onstoragc hatteries. a connector having an insert composed ol' sheet metal stamping provided with a tapered part projecting from the connector. a conductor terminal l'ormed from sheet metal and having a tapered part engaging said tapered part of the insert. clamping means l'or drawing the tapered parts t gether. and including a memher having a tapered portion which engages the exterior of one of said tapered parts.

H. connection for storage. hatteries. comprising a hattery connector or terminal having a lateral extension, an insert ol relatively hard material in said extension provided with a tapered part. projecting there tronna conductorterminal havinga tapered part which engages the tapered projeetring part ol the insert. a threaded clamping memher l'or drawing said tapered parts together said insert and said terminal ol' the con ductor heing stamped from sheet metal.

in testimony whereol', l hereunto atlix my signature.

'lll EODOR I A. WILLA ltl).

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