USRE12195E - Pek elikson - Google Patents

Description

No. 12,195. I REISSUED JAN. 26, 1904.

G. P. ELIBSON & V. DE ROBINS KY.

ELECTRICAL AOGUMULATOR.

APPLICATION FILED OCT. 26, 1903.

INVENTORQ; ad. as aw WAM BYfi WITNESSES:

' ployment of metal.

lead together.

UNITED STATES Reissued January 26. 1904.

CHATMSONOVIIZ PROSPER ELIESON AND VLADIMIR DE BOBINSKY,-OF

PARIS,

FRANCE.

. ELECTRICAL AOCUMULATQR.

SPECIFICATION forming part of Reissued Letters Patent No. 12,195, dated January 26, 1904. Original No. 6921433, dated I'ebrxiary 4, 1902. Application for reissue filed October 26, 1903. Serial No. 178,641

To all whom, it may concern..-

Be it known that we, CHAIMSONOVITZ Pnosrnn ELI ssox and VLADIMIR DE BOBINSKY, subjects of the King of Great Britain, and residents of Paris, France, have invented certain new and useful Improvements in Electrical Accumulators, of which the following is a specilication.

Our invention relates to electrical accumulators comprising very thin bands or strips of lead, which are alternately corrugated and straight and form very clear and regular spaces. The mounting of the accumulator allows thesaid strips to expand in a transverse direction laterally, because on the edges there is no mounting uniting the said strips of These strips, which constitute the active surface of the accumulator, are united together by a central core of lead, which constitutes a kind of backbone, from each side of which extend the thin strips of lead, or, again, this accumulatormay be. said to be similar in appearance toa birds feather, the shaft of which constitutes the central conductor and the lead strips resembling the vanes of the feather. A plate of our accumulator is reduced to what we have just explained; but in order that it may not get out of shape and that it shall possess sufficient strength when handled we strengthen it with a'frame, which is, however, completely insulated and which in no way involves the em- At the top and bottom we arrange cross-pieces of wood, ebonite, or other insulating material, and on the side we arrange small strips of wood, ebonite, or other like material. -Pieces of india-rubber placed on the said bands and embracing the upper and lower crosspieces give suflicient strength to the whole and. serve at the same time to separate the plates. In this manner with a very little weight we construct an accumulator of great electrical capacity, which will not get clearly distinguished from plates of known construction by the absence of all metallic -i covering-frames.

Having thus explained the principle of our accumulator, we will describe "by way of example a practical way of carrying out our invention with reference to the accompanying drawings.

Figure 1 represents a plain strip .11. Two (or preferably threelof them are generally placed upon one another, as shown in Fig. 2. Fig. 3 represents a corrugated strip and Fig. 4 shows, on a smaller scale. a band formed of several corrugated strips. Fig. 5 is a front elevation of an accumulatorplate fornIed with superposed strips. In this figure a part is broken away in order to show the strips on the side. Fig. 6 is a side elevation. Fig. 7 is a horizontal section. Fig. 8 is a'section on the line M N, Fig. 5; and Fig. 9 is a section on the line RQ. Fig. 10 is a horizontal section showing several juxtaposed plates, the accumulator comprising two positive plates interposedbetween three negative plates.

Each accumulator-plate is constructed of two columns composed of a certain number of lead strips (5 and b and which are alternutalv corrugated and flat. These lead strips (1 l) are free at their outer sides; but at approximately the middle of the plate they are united together by lead strips 0, connected by solder Withthe ends of the strips (6 and b. The two columns are placed almost side by side,-the two supports a 0 receiving between them a strip of' lead (I. \Vith grainsof solder v the said lead strip (Z is united to ribs 0 c of the two columns. As shown, the accumulatorplate is provided at the middle in the direc tion of its length with a compound strengthening-rib comprising the united strips 0 and (Z, on each side of which extend small lead tive surfaces of the accumulator. The middle rib thus formed extends upivard in the form of a lead stem f, whereby the plate can be handled. The latter has connected to one side of its upper part a lead rod g, as indicated in Fig. 5, which serves to establish the connections for communicating cu merit. The acstrips (I and 6, designed to constitute the accumulator-plate is completed by a number of 7 operation of the cell is always retained in the ite,- or other insulating material.

of the plate together and also serve to sepa- ,formed is a. positive plate.

two end plates being also negative plates.

' rangements usually adopted this accumulator- -The corrugations are sufiiciently small to be in yielding contact, so that they are free to served that the strips are in all cases flexible -and not rigid, while the central conductor, which serves to lead in and out the current,

tweenthe strips is promptly attacked, and

- as guards to prevent the electrolytedirectly the plate.

upper and lower cross-pieces ij,of wood, ebon- Wooden strips in I: are applied to the sides, and pieces of indiaJ-rubber placed over the strips of wood It and over the cross-pieces jbind the whole rate the adjacent plates. The plate thus A negative plate is constructed in the same manner, with the difference that there are no wood strips in k. The connecting-rods of the positive plates are always on the same side. Those of the negative plates are all on the opposite side. In Fig. 10 the middle plate is a negative plate, and. on each side are two positive plates, the

We would observe that contrary to the arplate has no metallic frame. a

--By reason of the aforesaid construction We produce a plate in which the openings formed between the strips are each capable of contracting'and expanding in two dimensions 2'. 6., in the plane of the plate-conformably to changes in dimension of the active mate rial contained in them. The active material adheres firmly to the. surface of,the corrugated strip and in expanding laterally extends or opens said strip and in contracting in the opposite direction closes the corrugations.

filled by active material produced bycorro: sion only. The expansion and contraction of the corrugated stripinwardly and outwardly provides for change .in one dimension,'while the separation and approach of the several strips provides for simultaneous change in the other dimension. Therefore the active material despite changes in bulk due tothe openings, which adjust themselves to it. The elastic bands serve to hold the strips together separate as the active material increases in creases said bands operate to move said strips into closer proximity. It will also be obis rigid, and so acts both-as a conductor and as a strengthening-rib. .J ttention is also called to the lead strips 0, which-cover the joints between the strips a b on their outer sides. Where the strips a b are simply connccted together at, one end and unprovided 7 with said strips 0, the metal at the joints-bethe strips are aptto sink or even fall away.- from their central support. The strips 0 serve reaching the edges of said joints, while at the same time they serve to stiffen and strengthen The non-metallic frame formed. by the bars i j, wood strips 7c lc,.and elastic bands'prevents the plate from getting out of shape. The upper cross-bar 2' passes through a loop or eye formed in the stem f and also through a second metallic loop, which is shown in Fig. 1 surrounding both said bar and the bent'lead rod or terminal g.

Among the special constructive features of advantage are the means for detachably securing one of the bars of the non metallic frame to the leading in and out conductor, the

conductor formed as a rigid structure of-parallel bars connected by transverse pieces, the

construction of the handle for lifting in and out said plate, andthe composite flexible strip.

.(Illustrated in Fig. 4.)

We claimh 1. An electric accumulator plate comprising a central conductingcore, and strips of thin lead alternately flat and corrugated, attached at one end to each side of the core and free attheir other end. 1 2. The combination with an accumulatorplate having a central conducting core, and strips of thin lead alternately flat and corrugated,attached at one end to each side of the core andfree at their other end, and a strengthening frame comprising upper and lower cross-pieces of insulating material and indiarubber ligatures binding the whole together but allowing a free lateral expansion of the thin lead strips.

3. An electric accumulator 7 plate having openings for active material; each of sa" openings being constructed to contract and tral conductor and two series of strips of thin metal electrically connected thereto and .dis- Y posed on opposite sides thereof; the said strips being constructed and supported so that the movement of their ,outer extremities due to; contractlon and expansion may be umversal' in the plane of said plate.

5. In an electric accumulator-plate, a central'conductor and two series of strips of thin metal electrically connected thereto and dis-' posed on opposite sides thereof; the said strips being constructed and. supported so that the movement of their. outer extremities due tom.

contraction and'expansion may be universal in the plane of said plate, and means'for elastically retaining the strips of each series in relative proximity.

6; An electric accumulator-plate having a central conductor and two series of strips of thin flexible metal respectively disposed on opposite sides'thereof, each of .saidstrips being attached at one end to said conductor and unattached at the other end. i j '7. An electric accumulator-plate having-a central conductor of rigid metal and 5 two 30- 5o tached to opposite sides thereof, abar of in- "sulati'ng material detachably secured on and 55 V ,14. In an electric accumulator-plate, having a rigid central conducton and thin flexible surespectiyely'disposedon opposite sides thereries of uperposed thin flexible metallic strips,

other end.

v a I ries'of superposed strips of thin flexible lead of.each of said strips being attached at one end to sa'idco'nductor and unattached atthe 8. In electric I accumulator-plate, two sethe strips of each series being united at one end and disposed with the united ends of the strips of. one seriesfacing'the united ends of the strips of the other series anda bar of conducting material connected to the united ends tween theni. v

of both-series of strips and interposed be-- 9. In an electric accumulator-plate having a series of superposed thin .flexible metallic strips united at one end and guard-strips of metal extending transversely across said strips, disposed on opposite sides thereof and covering the junctions of said strips.

10. In an electric accumulator-plate having a rigid central conductor, a series of flexible metallic strips united at one end to saidconductor and guard-strips' of metal extending.

transversely across said strips, disposed. on opposite sides thereof and covering the junctlons between said strips and said conductor.

- 11. In an electric accumulator-plate a cen- 'tral conductor, two series of thin metal strips electrically connected thereto, disposed on opposite sides thereof and constructed and supported so that the movement of their outer;

, extremities due tojcontraction and expansion may be universal in the plane of the plate'and a strengthening-frame of non-conducting mar-1 terial secured to and surrounding said plate.

.12. -In an electric accumulator-plate, a central conductor, two series of thin metal strips electrically connected thereto, disposedonop posite sides thereof mi constructed and sup ported so that the movement of their outer extremities due -.to contraction and expansion may be universal in the plane 0f the plate,

and an elastic strengthening-frame of non? conducting material secured to and surrounding said'plateand having its lateral members extending parallel to said conductor- 13. In combination with an electricaccumulatorplate having a rigid central conductor and two series of thin flexible lead strips ,at-'

- transversely to said conductor, alooseparallel bar of insulatingmaterial and elastic bands inclosing said plate and connectingsaid bars.

perposed strips of metal extending fromoping-pieces.

19. In an'electric accumulator-plate a rigid leading in and out conductor forming part ofposite sides thereof, parallel metallic loops disposed at one end of said plate, a bar of insulating material passing through said loops, a bar of insulating material in contact with the opposite end of said plate and elastic bands connecting said bars.

.15. In, combination with an accumulator plate having a compound strengthening-rib comprising two united longitudinal bars ,and'

thin lead strips extending laterally from each of saidbars, a solid stem connected to both of i said bars and extending upward to form a handle for'said plate.

16. In combination with'an accumulatorplate having a compound strengthening-rib comprising two united longitudinal bars and thin lead strips extending laterally from each saidbars and extending upward to form a handle for, said plate, and provided with a transverse opening, and a frame of insulating -material surrounding said plate and having one of its members received in said opening.

7S of said bars, a solid stem connected to both of 17. In an accumulator-plate a .compound strengthening-rib comprising two united lonsaid plate and consisting of a plurality of parallel separated metallic bars united by a plurality of separatedtransverse metallic connecting-pieces. in. combination with two series of thin flexible superposed metallic strips respectively projectingf-rom opposite sides of I said .conductor. t

20. Inan accumulator-plate a composite flexible strip of thin metal forming part of the active element and composed of a plurality ofindividual strips superposed and united.

In witness whereof we-have hereunto signed ournames in the presence of two subscribing witnesses. I

' CHAIMSONOVITZ PROSPER ELIESON.-

- VLADIMIR DE BOBINSKY. I

\Vit esses as to (LP. Elieson:

nannies F. GUYoN, Josnrn L.'-S'r1c1mar'. Witnesses as to Vladimir de Bobinsky:

.TILLIAM H. MUSTL I J. N. Baum.

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