US589042A

US589042A - William joseph still

Info

Publication number: US589042A
Authority: US
Publication date: 1897-08-31
Anticipated expiration: 1914-08-31

Description

(No Model.) 7

W. J. STILL. STORAGE BATTERY.

N0. 589,0 42. Patented Aug. 31, 1897.

' which My invention relatesto improvements in; storage or secondary batteries; and the :obj ecti of the invention is to design a simple, com-; pact, and durable'form of electrode in which the oxid-may be held in such a manner that; it may be thoroughly permeated with the acidand yet maybe capable of expansion and,con-- traction without shedding the oxid, and it consists, essentially, of formingth'e electrodes spiral'strip, the,

wires STATES:

\VILLIAM JOSEPH STILL, OF TORONTO, CANADA.

STO RAG E BATTERY.

SPECIFICATION forming part of Letters lE'atent No. 589,042, dated August 31, 1897.

Application filed February 10,1896. Serial No. 578,769. on; HiodelJ T0 at whom it may concern:

Be it known that I, WILLIAM-JosEPH STILL, electrician, of the city of Toronto, county of York,- in the Province of Ontario, Canada, have invented certain new and useful Improvements in StorageBatteries, of the following isfalspecification.

preferably of a rectangular oxid beingplaced between the convolutions of the spiraland a post being provided for; supporting thes'pira'l, the lead from the electrode preferably leading off from, the center of the spiral and the electrode and connec-f otherwise constructed, as herein-,

tions being 4 I after more partic'ularly explained.

Figure 1 is a perspective View showing two? cells with the side and top of one broken away to exhibit the construction of the electrodes 2 isan enlarged detail of an electrode, the central-post .beingintermediately broken away, aswell as the spirallysformedplate,'a portion of the oxid beand their connections. Fig.

ing also removed.

dicate corresponding A is the central or lar and is providedwith grooves cnthroughout the major portionjoi its-length.

B is'a' cylindrical top ormed with the post. 1

D is a rectangular spiral of sheet-lead which nected near the center to the spiral and extends upwardly throughone 0f the grooves a to the 'top' of the spiral, thus forming a lead from the electrode.

- F is an insulating-plate provided with holes j 1 ;sion and help contraction.- In the drawings like'letters of reference in-' post of each electrode, which is made preferably rectangu-l I f, with wing recesses f through which extend .th-e'bott oms do'f the posts A or the electrode, which areredu'cedtin diameter to fit into the hole thereofj I ct ,isapin which is ,passed'through the post A above the bottom shoulder and designed'to separate the bottom of the spiral from the plateF.

a is a pin'whichpasses through the post A below the plate F .and designed to hold the bottom of the post securely in the plate. G is the topins-ulating-plate, which rests upon squareshouldersA, formed at the bottom of the cylindrical top-:B. A pin a extends through the;to'p .B' of each electrode across. the slit O, and the-top plate Gis made with slots. grunning one way and slots g run- ,ning at'right angles thereto. It will of course be understood thatthe center of each slot 9 g is circular, .so as. to receive the cylindrical top B of'the post. The pins a, it will thus be. seen, servetoahold down the top plate upon the shouldersAC; f

H is an elastic looped band which is passed through the-stop slit!) and down alongside of the electrode through holes f in the bottom plate F. Pins .h.arelp.as'sed through the looped elastic bands, so as to hold them securely around the electrode.

The'bands' serve to pressfupon the. oxid in the electrodejand yet permit of a ready expan- The elastic bands .11 arepasseddown;the :tworsides of the elec- -trode,'asdescribed, andy-on each adjacent jelectro'de'the bands pass down on different sides, so that they form a means of insulating the electrodes from each other in case of jar- I ring. The top of the band, which extends on the ,post'A, and O is a slit made in the top longitudinally across the top of the spiral, is .on a line with the slots 9 and g inthe'plate G, and these slots are longer than the width of the electrode. As the, combined electrodes with the top and bottom plates G and F can be removed simultaneously, being connected: together, it will be seen that if any band becomes broken it may be replaced when, out .of the cell by simply passing the bands around through the slits and slots to the bottomplate F without removing any one electrode to do so.

The leads E of, we will say, the positive electrodes are connected to the binding-post I, while the leads of the negative electrode are connected to the binding-post J. The lower portions I and J of the posts are cylindrical and made of lead and extend through the top plate K, which is of course sealed all around. The tops of the posts I and J are made with a tinned stem and spherical head. The top plate K rests upon the tops of the posts A. The negative bindingpost J is connected to the positive bindingpost I of the next cell by the plates L L, having areshaped grooves l 1 made in them.

M is a thumb-screw by which the spherical heads of the posts I and J are held securely in the grooves I Z, so as to form a perfect contact.

By making the heads of the binding-posts spherical and forming a connection between them, as described, by the plates L with grooves Iain enabled to provide for the perfect connection between the cells.

As it is very difficult in practice to get the electrodes of the same height, the benefit of the construction above described will be readily understood.

\Vhat I claim as my invention is- 1. In a storage battery, an electrode com prising a rectangular contin uous hollow spiral of flat strip sheet-lead in flexible form with both edges free and an interposed hollow spiral of active material exposed at the inside and outside and a supporting-post for the electrode extending up within the spiral and forming a guide for the free lengthwise movement of the spiral, as and for the purpose specified.

2. In astorage battery an electrode comprising a rectangular hollow spiral of flat strip sheet-lead and an interposed hollow spiral of active material, a rectangular supportingpost for the electrode extending up through the spiral and longitudinal grooves in each side of the post as and for the purpose speciiied.

3. In a storage battery an electrode comprising a rectangular hollow spiral of fiat strip sheet-lead and an interposed hollow spiral of active material, a supporting-postfor the electrode extending up within the spiral and a lead from the center of the lead spiral as and for the purpose specified.

i. In a storage battery an electrode comprising a rectangular hollow spiral of flat strip sheet-lead and an interposed hollow spiral of active material, a rectangular supportingpost for the electrode extending up through the spiral, longitudinal grooves in each side of the post and a lead from the center edge of the spiral extending up through one of the grooves through the central opening of the spiral as and for the purpose specified.

5. The combination with the rectangular hollow spiral of flat strip sheet-lead and the hollow spiral of active material filling the spaces between the oonvolutions, of the central post having a top slit and the elastic band passing through the slit and from end to end of the electrode, the lower end of the band being suitably fastened, substantiallyas described.

6. The combination with the rectangular electrodes formed of a flat rectangular spiral with an interposed spiral of active material and central post with cylindrical top and slits in the tops of such posts, of the top and bottom insulating-plates oppositely-formed slots for each alternate electrode in the top plate and circular openings in the center of such slots to receive the cylindrical heads of the posts and an elastic band for holding the plates together having the top on aline with the slots as and for the purpose specified.

7. The combination with the spirallyformed electrodes having the reduced top and bottom ends forming shoulders, of the top and bottom insulating-plates into which such red uced ends fit as and for the purpose specified.

8. The combination with the spirallyformed electrodes having the reduced top and bottom ends forming shoulders, of the top and bottom plates and the winged holes in the bottom plate to receive the corresponding reduced ends as and for the purpose specified.

9. The combination with the spirallyformed electrodes having the reduced top and bottom ends forming shoulders, of the top and bottom plates and the pins extending through the bottoms of the posts above the shoulder and separating the bottoms of the electrodes from the insulating-plates as and for the purpose specified.

10. The combination with the spirallyform ed electrodes having the reduced top and bottom ends forming shoulders, of the top and bottom plates and pins extending through the reduced ends to bind the posts of the electrodes to the top and bottom plates as and for the purpose specified.

11. The combination with the spirallyformed electrodes having the reduced top and bottom ends forming shoulders, of the top and bottom plates, slots in the same through which the leads eXtend,binding-posts to which the leads are connected, and the top sealingplate resting on the tops of the posts and having openings through which the binding-posts extend as and for the purpose specified.

12. In a storage battery the combination with the electrodes and leads therefrom and binding-posts to which the leads for each cell are connected having stems with spherical heads, of a pair of connecting-plates for the cellshaving arc-shaped grooves and clamping means for holding the spherical heads in the grooves as and for the purpose specified.

- WILLIAM JOSEPH STILL.

Witnesses:

B. BOYD, II. DENNISON.