US1275448A - Electric accumulator. - Google Patents

Description

H. LEITNEB 64 W, H. EXLEY.

ELECTRIC ACCUMULATOR.

APPLICATION FilED rm. l. mu

Patented Aug. 13, 1915;

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rmrrnp STATES Parana enrich nanny nnrrnnra, or wns'rmms'rnn, LONDON, Ann WILLIAM HERBERT EXLEY, or MAYBURY HILL, woxrne, ENGLAND.

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Specification of Letters Patent.

Patented Aug. 13, 1918.

Application filed February 1, 1918. Serial No. 214,978.

Our invention relates to plates or elements forelectric accumulators, and to that class of plate comprising a support of an insulating material, such as celluloid, vulcanite, vulcanized fiber, wood, prepared Wood or the like, which carries a metal conductor around which the active material is em bedded. I

Now, accordiilg to our invention, which has for its object improvements in plates or elements of this type, both of the single pole and double pole forms, we make use of a non-conducting support of wood, or wood pulp, or other preparation of wood which is preferably of a porous nature, the said support being formed or provided with a series of rectilinear grooves, the adjacent grooves or spaces being separated by solid portions of the wood support, and each groove or space being designed to house within it a conductor embedded in active material. For example, the said support may be in the form of a plate having grooves on opposite faces.

In practice the positive and negative active materials may be applied to separate supports which are oppositeto one another in the accumulator cell. 01', and preferably, these positive and negative materials may be applied to one and the same support, in which case the said two materials are separated from one another by the rods or ribs upon the preferably porous non-conducting support.

To enable our invention to be fully understood we'will describe it by reference to .the accompanying drawings, in which Figure l is a side elevation of a portion of anion-conducting support provided with an improved form of metallic conductor.

Fig. 2 is a side elevation of a portion of a non-conducting support provided with a modified form of metallic conductor.

Fig. 3 is a vertical section on the line 17 17, Fig. 2. V Fig. 4 is a horizontal section of Fig. 1. Fig. ,5 is a horizontal section of Fig. 2. Referring to the construction of plate or element shown in the drawing, a represents a plate or strip of wood as above referred to, 6 being vertical grooves which are cut, molded or otherwise formed in the said plate or strip a on the opposite faces thereof, these grooves being advantageously made with undercut sides as clearly shown in order to form a key for the active material 5 shown in Figs. 4: and 5. The central web or ungrooved portion of the plate a is furnished with a number of holes or perforations c, and through these perforations there are threaded metallic conductors, which are connected to the conducting strip 6 which forms the terminal of the element.

In practice, as before stated, the active ma- I terial in adjacent grooves of the support is of opposite polarity, so that the element formed will be bipolar.

The metal conductor, which is mechanicallyapplied to the grooves b of the support as above described, is in the form of a stamped strip consisting of a central bar or rib 2' having a number of laterally projecting tongues j, as shown. The tongues extend through the holes 0 in the bottoms of the grooves b ofthe support a,.the said tongues being then bent inward toward one another in the opposite groove so that they'assumethe form shown in Fig. 4. An individual strip is introduced into each ofthe grooves on one side of the plate, the said strips being pref:

erably stamped integrally with the terminal -strip 6.

I v Fws. 2. 3 and'o show a form .of conductor,

which is similar to that shown in Figs. 1 and 4, with the exception that a single strip 71 ex-' vided with grooves sagmrzzte" i0 rial of one polarity vided With grooves separated by tions of the support, anti an electric conducting strip having tongues if through apertures in said sugport anti embedded in active material.

2. An element for electric ZECCHEEUEMOIS, comprising a support of porous tions of the porous supporlocate'i in em oz grooves, and active material of opposite p0- Ilzzirity located in an adjacent groom, said active material supporting conducting means, much are embecHed therein.

HENlY LEETNER.

EELZXAM HERBERT EXLEY J-Jitnesses BAGGOTT, A a HALL.

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