US696496A - Accumulator. - Google Patents

Description

No. 696,496. Painted Apr. l, |902.

G. DE DE sALEs.& F. auEueNoN.

ACCUMULATH.

(Application filed Mar. 18, 1901.) (No Model.)

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llniiirnn drains GEORGES DE ROUSSY DE SALES AND FRANQOIS GUEUGNON,

FRANCE.

Partnr triton'.

OF LYONS,

CCUMULATOR.

SPECIFIGATION forming part of Letters 'atent No. 696,496, dated April 1, 1902. Application led March 13, 1901. Serial No. 51,018. (No model.)

To @ZZ whom, t may concern.-

Be it known that we, GEORGES DE ROUSSY DE SALES and FRANooIs GUEUeNoN, both citizens of the Republic of France, residing at Lyons, in the Republic of France, have in vented certain new and useful Improvements in Accumulators, of which the following is a specification.

This invention has for its object a novel ac ciimulator which is at the same time strong and light and which utilizes more completely and under the most favorable conditions the oxidizable and reducible metals commonly used in accumulators. Ve employ in such accumulators plates either electrically or otherwise formed. Owing to the special arrangement of our accumulator, in which a metal tank lined throughout its whole inside surface with lead forms the anode, all faces except one of the cathodes are utilized, each face of the cathode being adjacent to a face of the anode.

Our invention is illustrated in the annexed drawings, in which- Figure 1 is a vertical sectional view of the anode. Fig. 2 is a section on the line C D of Fig. l. Fig. 3 is a horizontal sectional view of said anode. Fig. 4 is a vertical sectional View of the accumulator. Fig. 5 is a section on the line G H of Fig. 4, and Fig. G is a section on the line E F of Fig. 4.

The cathodes according to this invention consist of asupporting-frame 1,of aluminium, enveloped with a very thin`-sheet 2 of lead in such a manner as to form an envelop or covering for the frame 1,"as well as a plate surrounded by said frame. This frame 1 gives absolute rigidity to the sheet 2 of lead and induces conduction. The sheet or envelop 2 is perforated and provided on both of its external faces with metallic wires 3, thus forming a brush. After coating the sheet 2 with oxid of lead the cathode is rolled, which bends around the free Vends of the wires 3, and so that they hold the layer of oxid of lead to the plate. The plate thus formed is introduced into a suitably-perforated box 4, of ebonite, celluloid, or other insulating material. The cathode has upon its upper edge three projecting stems ol' aluminium cast in one with the frame. The central stem 5 is screwthreaded and provided with a nut in order to make connection. The anode is composed of an aluminium tank G, having a flange for its suspension. Thisl tank is divided up into compartments by means of partitions of the same metal. The interior of the tank and the partitions are coated with a layer of porous or other lead 13 in such manner that each trough or compartment 7 forms the anode. The assemblage of these compartments provided with their cathodes-that is to say, the entire tank-forms when coupled up an ele ment, the connections being of course in parallel. Each tank is provided with a terminal and a binding-nut, (not shown,) which serve to make connection. Inside each compartment 7 of the tank G we place two boxes 9 and 10, formedV of perforated sheet-aluminium. These boxes are maintained at a suitable distance apart by distance-pieces 11, of ebonite or other suitable material. The outer box 9 is in contact with the inner walls of the anode, while the inner box 10 forms a chamber 12 to contain the cathode, which fits into it. This arrangement allows for changes in the volume of the cathode and avoids falls of oxid. The elasticity of the metal allows it to exercise a continuons pressure upon the sides of the cathode and of the anode, which prevents the fall of powder when charging and discharging. The outer box 9, instead of being of aluminium, may be of ebonite or similar material, the volume of the anode being comparatively constantdurin g work. The liquid electrolyte is poured into the space comprised between the two concentric or nested boxes 9 and 10. In order to avoid movement of the liquid electrolyte when the accumulator is shaken, we render it immobile by means of sawdust or maize powder or similar material 14 the absorption powers of which are cousiderable. A very small quantity of powder is necessary. This use of maize powder as an absorbent is known, but has never been applied to accumulators to render the liquid electrolyte immobile.

Having thus described the nature and objects of our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In an accumulator, a cathode consisting of a supporting-frame of aluminium envel- IOC) oped with sheet-lead said lead covering the frame and extending therefrom in the form of a plate surrounded by the frame, an anode composed of an aluminium-tank divided into compartments composed of the same metal, the interior of which tank is coated with lead so that each compartment forms the anode, two concentric or nested boxes having perforated walls separating the cathode from the anode and an absorbent material, substantially as described, arranged between adjacent walls of said boxes, said material adapted to absorb and to render the liquid electrolyte immobile, substantially as described.

2. In an accumulator, a cathode consisting of a supporting-frame of aluminium enveloped with sheet-lead said lead covering the frame and extending therefrom in the form of a plate surrounded by the frame and provided with met-al Wires forming a brush, an anode In testimony whereof we have signed this speciiication in the presence of two subscribing witnesses.

GEORGES DE ROUSSY DE SALES. FRANQOIS GUEUGNON. Witnesses:

ALPHONSE DI-IERBELOBF, Trios. N. BROWNE.

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