US1519867A - Storage-battery-cell cover - Google Patents

Description

Dec', i6, i924. w? P. M. MARKO STORAGE BATTERY CELL COVER Filed April l2, 1921 Vial il l l A 35 30 24 30 y f4 e@ 35 i Vicki Patented Dec. 16, 1924.

UNITED STATES PAUL M. MARKO, F BROOKLYN, NEW YORK.

STORAGE-BATTERY-CELL COVER.

Application led April 12, 1921. Serial No. 460,717.

To all whom t may concern Be it known that I, PAUL'M. MARKO, a citizen fof the United States, and a resident of the city of New York, borough of Brookl n, n the 'county of Kings and State of ew York, have invented a new and Improved 'Storage-Battery-Cell Cover, of which the following is a full, clear, and exact description.

This invention relates to storage battery cells, and has particularreference to covers for such devices.

Among the objects of the linventionis to provide improved facilities for locking the plates and cover together; to provide im? proved splash cover and electrolyte gage;

and, finally, to generally improve theconstruction of the cell cover both for individual cell purposes and the assembly of a plurality of cells in the construction of a battery.

With the foregoing and other objects in view, the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still, for the purpose of illustrating a practical embodiment thereof reference is had to k the accompanying drawings, in which like reference characters designate the same v parts in the several views, and in which-i Figure 1 is a vertical central section of a cell and its cover` complete; and

Figure 2 is ia plan view of the splash cover. r

Referrin now more specifically to the drawings, show a cell( cup `1O made of any suitable on-,corrodible material, the same being as usual of any suitable size or proportions and of rectangular form. The positive andnegative posts 11 and 12 of the plates 13 and 14 extend upward as usual above the top of the cell cup and the several plates arranged in alternation are separated by wood or other fibrous plates 15. The terminals or bindin posts 11 and 12 are provided at their s oulder portions 16 where they are connected to the several metal plates with horizontal kerfs 17 on the same level, such level being just above the desired level of the electrolyte indicated at 18. These kerfs are formed on the inner or opposed sides of the binding posts and so constitute. seats for electrolyte. U 'vided witha plurality'of longltudmal and the end portions of the splash cover and.

horizontal flange 23, these features beingv adapted to support conical gaskets 24 of any suitable material. the binding posts are threaded at 25 for the accommodation of binding nuts 26 of any suitable but non-corrodible metal. or its equivalent, and above these threaded 'portions 2,5 of the binding posts the upper ends thereof are tapered and preferably smooth and one of larger diameter than the other as plainly shown at 26 and 27.

The cover 28 is preferably .of one piece of any suitable material that will not be acted upon by the acids of the battery or otherwise deteriorate. The cover is provided with a reinforcement or sti'enng flange 29 which is dropped down within the upper end of the cup and adaptedto bear with a fairly snug t against the inner walls of the cup in practice just above the level of the The cover is furthermore protransverse ribs 30 for reinforcement and stiifening purposes. At the center of the cover l providean internally threaded boss 31, thel opening through which is directly above the hole 20. At about the center of each end of the cover I provide a downwardly projecting boss 32 having a hole constituting a counterpart of the frusto-conical shoulder and gasket 24 adapted to be pro- Above these shoulders jected thereinto with a snug fit. rlhe cover is locked in the place indicated with respect to the binding posts by means of the lock nuts 26 above described, the same bearing downward snugly against the top surface of the cover and serving todraw the cover downward with a snug liquid tight t upon the shoulders 21 and 22. After the parts are assembled in the manner just described and illustrated, the space between the downwardly projecting flange 29 of the cup is filled with cement 33 of any suitable nature` making a positive seal between the cover 'and the cup and leaving no openings or vents except through the threaded boss 31.

The ventplug 34 is constructed with a hollow body, the lower end of which is threaded at 35 for engagement in the allel tins 37 for easy manipulation of the plug. The upper and lower ends 'of the hollow body are guarded by diaphragms 38 and 39 respectively, the upper one having a central vent 38', while the lower one has a plurality of spaced vents 39 out of registry with one another and the hole in the splash cover below.. Any gases'or fumes that may be generated within the cell have free exit through the vent holes through the plug, but because of the staggering relation of these featuresthe cell as a whole is practically non-leakable. The main splash of -the electrolyte within the cup'is guarded by the splash cover 19, but any acid that may reach the bottom of the plug will pass through the vents 39 in ve small quantities if at all, and if any of t e acid should enter the plug by no possibility canit spurt or splash through the uppervent 38 and,

furthermore, any acid that might enter the plug will be free to flow backward again through the vents 39.

It will thus be seen that I produce a very compact, strong, reliable and eiicient bat'- tery cell because of the features of construction set forth herein.y

2. In a storage battery cell, the combina;

tion of a pair of spaced 'binding posts having sharpfrusto-coni'cal shouldersI formed thereon intermediate their ends and at the same level, an outwardly projecting flange at the lower 'level of each shoulder, a thin conical gasket supported on said flange and embracing the shoulder, a cover having openings to receive said shoulders, the posts being screw threaded labove the shoulders .and having smooth Atapered upper ends of reduced diameter, and binding nuts screwed upon the threaded portions of the binding posts in engagement with the cover and serving to make liquid-tight joints between the cover and the shoulders, said nuts being located below the smooth ends or the posts.

PAL M. MARKO.

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