US716056A - Storage battery. - Google Patents

Description

Patented Dec. I6, .1902.

E. J. KNAPP.

STORAGE BATTERY. (Application 1od My 19, 1902,)-`

(no Modl.)

Winesses;

@3% Inventur Edgardnapn. EH m WF? UNrrED STATES- PArENr OFFICE;

EDGAR J. KNAPP, OF CHICAGO, ILLINOIS.

STORAGE BATTERY.

`u?PllCIIiIGl-1-TION forming part of Letters Patent No. '71 6,056, dated. December 16, 1902.

Application filed May 19, 1902.

To all whom, t may con/cern,.- p

Be it known that I, EDGAR J. KNAPP, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Storage Batteries, (Case No. 1,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a partl of this specification.

My invention relates to storage batteries,

i and has for its object the provision of improved structural facilities whereby buckling of the storage-battery plates may be avoided; and, generally speaking, it consists of constraining means associated with the corners of the battery-plates that force the said plates to remain in normal planes notwithstanding great tendency to buckle. p age-battery plates usually commences at the corners thereof, and in order to furnish the desired constraining means corner-caps are preferably placed over the corners of the plates, such corner-caps being made of .substantially rigid sheets of` material to furnish the desired constraint, they serving effectually to prevent buckling of the plate-corners. These corner-caps in the preferred embodiment of the invention also serve to secure storage-battery separators, such separators being preferably interposed between the bat-A tery-plates and the walls of the caps that are parallel therewith.

I Will explain my invention more fully by reference to the accompanying drawings, in which- Figure 1 is a perspective view of a batteryplate constructed in accordance with the invention. Fig. 2 is a perspective view of a modified form of one of the caps employed for guarding the battery-plates and assembling the separators therewith.

Like parts are indicated by similar characters of reference in both views.

The invention is designedfor application to any suitable formof storage-battery plate a, and the form of separator b may be any suited to the purpose.` That shown in Fig. l

may becomposed of sheet-rubber, provided with separating-ribs c and apertures d, permitting of the circulation of battery iluid and Buckling in stor- Serial No. 107,903. (No model.)

preventing the dislodgment of active material. The preferred device or agency for preventing the battery-plate from buckling at the corners resides in the triangular cornercaps e, preferably separable from the batteryplate and separator, that may, if desired, be formed of sheet-rubber fluted and apertured similarly to the separator. The caps are provided with horizontal and vertical Wallsf and g, that engage the horizontal and vertical edges of the battery-plates, and are also provided with side Walls It and t, that lie parallel with the storage-battery plates, the side walls h and t being preferably triangular, as illustrated7 especially for the bottom caps, so that the active material that may fall from the battery-plates will not find a lodging-place upon the caps, which might with certain arrangement of separators result in short cir cuit. The caps by being made of substantially rigid sheet-rubber most effectively act to maintain the battery-plates in the required shape and where desired also serve to ret-ain the separators in place in the manner indicated inFig. l.

It is obvious that departures may be made 'from the precise embodiment of my invention herein shown without departing from the spirit of the invention, and I do not, therefore, wish to he limited to the precise structure shown; but,

I-Iaving thus described my invention, I claim as new and desire to secure by Letters Patentl. A storage-battery plate, provided with constraining means at its corner portions for maintaining it in its normal plane against buckling or curling tendencies,the said means being in the form of corner-caps, substantially as described.

2. A storage-battery plate, provided with constraining means at its corner portions for maintaining it in its normal plane against buckling or curling tendencies,the said means being in the form of corner-caps having horizontal, vertical and side walls, substantially as described.

3. A storage-battery plate, provided with constraining means at its corner portions for maintaining it in its normal plane against being in the form of corner-caps having horiplate, of separable corner-caps therefor, e11

zontal, vertical and side Walls, said side Walls gaging the sides of the battery-plate and prebeing triangular, substantially as described. Venting the same from departing from the 4. The combination with a storage-batter)T normal plane of the battery-plate, substan- I 5 5 plate, of a separator therefor, and cornertially as described.

caps inclosing the corners of the storage-bat- In Witness whereof I hereunto subscribe my tery plate, the separator being interposed bename this 17th day of May, A. D. 1902.

tween Walls of the caps and a corresponding EDGAR J. KN APP.

Wall of the storage-battery plate,substantially Witnesses: Y Io as described. CHARLES A. BROWN,

5. The combination with a storage-battery GEORGE L. CRAGG.

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