US437848A - Secondary battery - Google Patents

Description

(NoModel.)

H. LAMPBRT, Jr. SEGONDARYBATTERY.

No. 437,848. Patented Oct. '7, 1890.

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UNITED STATES PATENT OFFICE.

HENRY LAMPERT, JR., OF CHICAGO, ILLINOIS.

SECON DARY BATTERY.

SPECIFICATION forming part of Letters Patent No. 437,848, dated October 7, 1890.

Application filed January 3l, 1889.

To all whom t may concern:

Be it known that I, HENRY LAMPERT, .I r., of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Secondary Battery; and I do hereby declare that the following is a full, clear, and eXact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specilication.

This invention relates to an improvement in secondary batteries; and it consists in the matters hereinafter described, and pointed out in the appended claims.

In the accompanying drawings, illustrating the manner in which my improved method may be carried ont, Figure l is a plan or face View of one of the plates of a storage-battery adapted for connection in the novel manner proposed by me. Fig. 2 is a side view of said plate. Fig. 3 is avertical section of a portion of my improved battery upon line 3 3 of Fig. l, showing the manner of securing the plates together. Figs. 4 to 9 are fragmentary sectional views showing other forms in which the plates may be made.

As shown in said drawings, A A are a series of plates of a storagebattery, each of said plates being provided with a lateral projection or hub A. The hubs A are provided with apertures or openin gs extending through the hubs and plates, said openings being constructed to receive the ends of the hubs upon the adjacent plates and forming a tubular passage when the plates are put together. As shown in the drawings, the hubs A are provided with rabbets c to receive the ends of the hubs of adjacent plates, and with inwardly-tapered recesses c', extending from the rabbets to the outer ends of t-he hubs, so that when the plates are put togethera series of projections a2 d2 are formed within the tubular opening formed by the recesses of the severalhubs. The several plates when placed together in the position shown in the drawings, Fig. 3, are connected by pouring molten metal into the tubular recess or opening formed by the apertures of the several hubs, the solidified metal by its engagement with the inwardlyprojecting parts of the hubs holding the plates securely together, and thereby forming a strong and permanent connection between the same.

Serial No. 298,191. (No model.)

The plate A2, which forms the end plate of the series, is provided wit-h a hub A3, having a recess a3, which does not extend through the plate, so that when the several plates are placed together the closed recess a3 will form a tight bottom to the tubular passage, thereby preventing the escape of molten metal when poured into the upper part of said passage. rIhe use of the plate A2 thus formed has the advantage of rendering unnecessary any special device for closing the aperture in the lower plate at the time of pouring the metal; but as far as the main features of my invention are concerned the employment of a plate thus formed is not strictly necessary.

B indicates a tubular extension or thimble shaped like the hubs A A', and provided with a rabbet b and a tapered recess b', said rabbet being arranged to engage the hub A on the adjacent plate A. The said thimble B serves to form a shank, by which the electric conductor may be connected with the plates.

C indicates the metal rod or core of fusible metal, by which the several plates are connected in the manner above described. Said rod or core is not intended to be necessarily of sufficient strength or rigidity to support the several connected plates, but is intended mainly as a tie to hold the hubs of the several plates in contact by its engagement with said hubs, thereby acting, together with said hubs, to rigidily connect the plates.

D, Fig. 3, indicates a metal rod, preferably of copper, which maybe inserted in the tubular opening before the inetal C is poured therein, and to which the conductor-wire leading to the battery-plates is attached. Said rod D, when present, not only enables an electric conductor to be easily connected with the plates, but by extending through or past the several plates affords better electrical connection with the plates.

In Fig. 4 is shown a somewhat different construction in the plates adapted for connection in the manner above described. In this case E E indicate plates, which are provided with hubs E', having internal recesses e of cylindric form, and rabbets e to receive the hubs E of the adjacent plates, and internal ribs e2, which by positive engagement with the metal core F, formed by pouring molten metal into the tubular passage formed bythe to apertures g.

several apertures, in the manner described, positively hold the plates from relative movement or separation.

Fig. shows stillanother form in which the 5 plates may be made, wherein the apertures of l5 between the parts in pouring the molten metal. The conical inner surfaces of the hubs, together with the end surfaces thereof, engage themetal core H, formed by pouring` molten metal into the tubular passage formed zo by the several apertures in such manner as to prevent any shifting or endwise movement of the plates with reference to the core, so

that the latter holds the same firmly together in the manner clearly illustrated in the drawings.

In Fig. 6 is shown a-series of plates I I I, having conical hubs I I', having apertures formed through them in the saine manner as before described. Said apertures, however,

3o have conical parts i, adapted to receive the upper ends of the hubs of adjacent plates, and oppositely-inclined conical parts 1", making the apertures smaller in diameter at the middleparts than elsewhere. This construc- 3 5 tion also givesa positive engagement of the plates with the fusible metalfcore J with the same advantages above pointed out. It is V not, however, essential that the apertures of all or any of the plates should contain inter- 4ofnal. projections adapted to engage the fusible metal core, inasmuch as the plates may be held from separation or movement upon the core by positive engagement of the end plates of the series with the core, or when the plates are of fusible metal and the metal to form the core is poured into the tubular passage through the plates when heated to a temperature higher than that of the fusing-point of the plates a'fused joint will be formed between the plates and the core, and said. parts will'be permanently and strongly united.

This method of uniting the plates, in the case of plates used for storage-batteries, is preferred, for the reason that it forms continuous electrical connection or union between the plates and the core calculated to perfectly transmit the electric current in the operation of the battery.

In Fig. 7 is shown a construction wherein 6o plates K K K are provided with hubs K,

having cylindric recesses or openings 7c and rabbets lo to receive the hubs of adjacent plates. L is a core of fusible metal lling the cylindric passage formed by the several recesses kwhen the parts are placed together and united to the several plates by fusing, so

that the metal of the plates and core is practically continuous after the parts are united.

Fig. 8 illustrates a series of plates M M M, having hubs 'm m, provided with cylindric apertures m and without any rabbets or interfitting surfaces on the two parts, the ends of the hubs on the several plates being merely placed against the adjacent plates and held in this position by a clamping device or otherwise duringthe time the metal is being poured into the tubular passage formed by the several apertures m. In this instance, also, the fusible core N is formed by pouring the metal at a temperature higher than the fusing-point of the metal composing the plates, so that fused joints are formed in the same manner as before described.

In Fig. 9 I have shown a construction wherein a series of plates are united by positive engagement of the end plates of the series with the fusible metal core. In this instance O O are intermediate plates of the series, and P Q are end plates of the series. The plates O O have hubs O', provided with cylindric apertures 0. The bottom plateP is provided with a hub p, having a closed recess p', larger at its bottom than at its top. The upper plate Q has a hub Q', provided in its ower part with an opening q o f the same size ts the opening o, and in its upper part with a larger recess q. The plug R of fusible metal, in a construction of this kind, has enlarged heads r r at its opposite ends, by which the parts are positively held together.

I claim as my inventionl. The herein-described storage-battery,

IOO

consisting of apertured plates arranged side Y.

by side with the apertures in alignment, and a filling of fusible metal vwithin said apertures rigidly securing the plates together.

2. The herein -described storage-battery, consisting of plates arranged side by side and provided with apertured hubs registering with each other, and a lling of fusible metal within the apertures of the hubs.

3. The herein-described storage-battery, consisting of plates arranged side by side and provided with hubs registering with each other, eah of said hubs havinga tapered recess, and a rabbet at one side to receive theY Witnesses:

C. CLARENCE POOLE, GEO. W. Hrecnvs, Jr.

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