US1328392A - Grid-plate for storage batteries - Google Patents

Description

P; B. R ABE. GRID PLATE FOR STORAGE BAUERIES.

APPucM|o- FILED APR. 30; 1919.

' Patented Jan. 20, 1920.4

h "l I i airl it {the PAUL B. BABE, if? CHICAGO, ILLINOIS, ASSZGHQR TO 0. K. GIANT 00., F GARY,

- INDIANA, A CQRPQRATION OF DELAW'ABE.

onrn-rLATE ron sronaon sa-rrnnrns.

To @455 whom it may concern:

lie it known'thatl, PAITL B. Risen, a citizen oi the United States, residing at Chi cage, in the county of Cook and State of lllinois, have invented a certain new and useful Improvement in Grid-Plates for Storage Batteries, of which the following is a full, clear, concise, and exact description, reference being had to the accon'ipan ying drawings,forming a part of this specification.

My invention relates to grid plans suclt as are employed in connection with storage batteries or electric accumulators, and briefly stated, the objects of my invention are to provide arid plate of this class which, despite the tact that it is capable of being easily and cheaply manufactured, is

highly etticient in that it effectually supports the proper anode or cathode substance or compound with which said grid plates are provided when in use in a battery, and at the same time exposes a maximum area of the said compound surface to the electrolyte, wl1icli is. of course, highly desirable.

As is well known, the substances or compounds with which storage battery grid plates are provided are characteristically fragile, and have a tendency to disintegrate and to become separated from the orid plate by whicn they are carried. it therefore quite a problem to provide a grid plate which will satisfactorily support such a substance or compound, and at the same time expose sufiicient surface of the latter to the electrolyte. I

I have found that the grid plate structure illustrated in the accompanying d "awing is particularly advantageous in that it exposes a' maximum surface of the substance or compound carried thereby to the electrolyte, and at the sametime holdsthe said substance or compound very much more securely than does any generally similar grid plate with which i am tamiliar.

in the drawing Figure l is an elevational view of one face of a grid plat-e embodying my invention; 7

Fig. 2 is a side view of the same; and- Fig. 3 is an enlarged fragmentary sectional view taken on line 3-3 of Fig. 1.

Similar characters of reference refer to similar parts throughout the several views.

The grid plate shown in the drawings is cast in one piece, and is formed of: a suitable Specification of Letters Patent.

metallic material, such, for instance, as an alloy of lead and antimony, which possesses the necessary mechanical strength, and at the same time produces no local action in the presence of the other substances in the storage battery cell.

The grid plate comprises the top and bottom bars and 11 and the spaced longi' tudinal bars 1:2, 12, all formed in one piece as shown. Formed integral with. the top. bar 10 is the usual upwardly extending arm 13,

to which a terminal or jumper may be burned or therwise electrically connected in a well known manner.

Extending across the spaces between each of the exterior longitudinal bars 12 and the interior adjacent longitudinal bars 12 and also between adjacent interior longitudinal bars 12 are two rows of transverse bars 14, 14, there being a considerable space between the said parallel rows of bars, and the bars 14, 14 of the said rows being staggered with respect to each other, all of which is clearly illustrated in Fig. 3.

It will be noted that each of the bars 14; is provided with an integral inwardly projecting web '15, the said web being of substantially equilateral triangular cross section, with the base of the triangle of substantially less width than the inner surface of the her 1%, to provide shoulders 16, 16. lhe inner edges oi all of the triangular webs l6 lie in the same plane midway between the opposite rows of bars 14:.

When the grid plate is t6 be used in a. battery, the usual grid filling material. is placed upon the grid plate, and in the interstices between the severalgrid plate bars. It Will be noted that the upper and lower surfaces of the bars 14 are inclined toward each other near the outer faces of the said bars 14, so that a maximum area of the grid filling material is exposed to the electrolyte when the grid in use. I have found that when the grid plate construction herein ,shown and described is employed, practically no trouble is experienced due to the lliin; material falling out of the grid plate structure, since the staggered Webs 15 of the opposite rows of bars 14 effectually prevent movement of the filling material in the direction of bars 12, 12, while engagement of the filling with shoulders 16, 16 to a, very large extent overcomes the tendency Patented Jan. 20, 1920.

Application filed April 30, 1919. Serial No. 298,603.

oi the filling material to escape It will be noted thatthe websH, due to their inwardly tapering form, have a tendency to cause the filling material to pack toward the middle of the grid plate structure rather than to fall out of the same. Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

A grid plate for storage batteries comprising in combination with a pairof longitudinal bans, a plurality of transverse bars extending between the longitudinal bars, said transverse bars being disposed in parallel rows, the transverse bars in said parall el rows being located in staggered relation to each other, each of said transverse bars being Provided on its inner surface with a web ot less cross-section than the said trans verse bars, said webs projectin inwardly into the space between the parallel rows of said transverse bars substantially as and for thepurpose set forth.

In witness whereof I hereunto subscribe my name this 22 day of April, 1919.

PAUL B, RABE.

VV'itnesses: 4

MARY Fan Perms, EDNA V. GUSTAFSQN.

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