US397650A

US397650A - William kingsland

Info

Publication number: US397650A
Authority: US
Publication date: 1889-02-12
Anticipated expiration: 1906-02-12

Description

(No Mdem W.'KINGSL'AND.

SECONDARY BATTERY.

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Darren Sterns Fermat Ormea,

IILLIAM KINGSLAND, OF GUNNERSBURY, COUNTY OF MIDDLESEX, ENGLAND.

SECON DARY BATTERY.

SIPECJIFICA'IION forming part of Letters Patent No. 397,650, dated February 12, 1889.

Application filed June 4, 1888. Serial No. 275,944. (No model.) Patented in England April 22, 1887, No. 5,867.

To all whom it may concern.'

Be it known that I, VILLIAM KINGSLAND, electrician, a subject of the Queen of Great Britain, residing at Gunnersbury, in the county of Middlesex, England, have invented certain new and useful Improvements in Sec ondary Batteries, (for which a patent has been granted to me in the following country: Great Britain, dated April 22, 1887, No. 5,867,) of which the following is a specification.

My invention relates to that type of secondary battery which has for a negative element or anode a slab or plate consisting wholly or mainly of active material-such, for example, as an agglomerate of peroxide of lead-electrical contact with which is effected by means of some inoxidiy'able metal, preferably platinum-foil, and my object is to minimize the amount of platinum required and to use it to the best advantage.

The electrical contacts to which this invention relates are those joining the electrodes from cell to cell or with the main workingconductors of the apparatus; and in order that my invention may be clearly understood and readily carried into eiectI will describe the same with reference tothe accompanying drawings.

Figure l represents in perspective a portion of an-anode composed of a slab or plate of active material, and showing the contact arrangement aecording to my invention. Fig.

' 2 is a partial vertical transverse section; and

Fig'. 3 is a side elevation of same with the plate D removed, and showing the bolt C in cross-section. Fig. 4t shows a similar form of connection in longitudinal and vertical cross section arranged according to my invention and as applied to two plates. Fig. 5 is a plan, and Fig. 6 is a vertical section on the line X Y,

K Fig. 5, showing a different arrangement ot' Vode B for this purpose.

with these a washer or cover or backing, D, for the platinum on that side which is not in contact with the anode, and this washer, cover, or backing is composed of one or more small pieces or strips of the same material as the anode, cut to the required shape and size, so as to cover the platinum or contact-piece A, which is thus inclosed on each side with active material.

In constructing a cell containing two or more anodes, B, I sometimes, as shown at Fie. S, clamp the anodes together in pairs, with the platinum between, so that one piece ot' platinum may serve as a contact for two plates; or, when it is desirable to have a cath ode, B, on each side of every anode B, I employ the aforesaid strip or washer of active material, D, as is shown at Figs. 4, `5, and (5, for a backing for the platinum, and I place the two anodes B B so that one strip of active material, D, may serve as a backing for the platinum contacts A on each anode B; or I may employ two or more strips or washers of active material to form a backing for the platinum contacts, and also to separate the anodes, so as to permit of a cathode being placed between them. I may also include the cathode B in the above arrangement, and, as is shown at Fig. 7, clamp it between the two anodes B B, making use for this purpose of the same nuts or bolts, O, which hold the anodes B B and their contacts A A to gether, suitable holes being made in the cath- In this case it will be necessary to employ a strip of some suit able insulating material, as at D D-such as ebonite, or, preferably, india-rubber or `asbestus-at those points where the cathode would otherwise be in contact with the active material of the backings. In clamping the plates together I may also employ india-rub ber or asbestus in the form of a washer, as shown at C', Figs. 5 and 7, underneath the heads of the nuts or bolts; or they may be applied in place of the insulating-strip D', in order to give a certain amount of elasticity to the combination and to allow tor eXpansion and contraction of the plates.

I am aware that it has been proposed to employ platinum in the construction of sec- IOO ondary batteries. I lay no claim to the use of platinum per se; but by my invention I am able to utilize its valuable qualities in a special and economical manner, and it is the means Which I employ for such purpose which forms the essential feature of my invention.

I claiml. In secondary batteries, the anodes B and platinum-foil contact-pieces A, in combination With the clamping Washers or Strips D, of similar material to the anode, and bolts and nuts C, as set forth.

2. The combination, With two or more anodes, B, and platinum-foil contact-pieces A, of the distancing` Washers or strips D, of similar material to the said anodes, and bolts and nuts C, as set forth.

3. The combination, with two or more anodes, B, cathode or cathodes B and platinumfoil contact-pieces A, of the distancng strips or pieces D, of the same material as the anodes B, insulating-Washers D', and nuts and bolts C, as set forth.

WILLIAM KINGSLAND.

Witnesses:

WALTER J. SKERTEN, G. W. WEsTLEY, Bolwh gf No. 17 Gracechurch Street, London,