US1215774A - Primary battery. - Google Patents

Description

E. F. CALLENDEH.

I PRiMARY BAITERY. APPLICATION HLEn' MAY 29. i916.

Patented Feb. 13, 1917.

UNITED STATES PATENT OFFICE. It

EDWIN F. CALLI ENDER, 0F GAIJESBURG, ILLINOIS, AS SIGNQR OF UNE-I'IALF TO L. BIELLE GALLENDER, OF GALESBURG, ILLINOIS.

PRIMARY BATTERY;

To all, uh om it may concern: lie it known that I, EDWIN F. CALLENDER,

a citizen of the United States, and a resident of (ialesburg, in the county of Knox and State of lllinois, have invented a new and useful Primary .liatte'ry, of which the fol-'-' utility, durability ainlefficiency of batteries of this type, the improvements being directed more particularly toward the construc tion of the receptacle, toward the construction andapplication of the containeecover, and'toward several subsidiary improvements presently fully described.

The invention consists,substantially, in

l the improvements hereinafter described. 25

illustrates a preferred embodiment of my in- In "the accompanying drawing, which ment is preferably formed of tin, or of sheet-iron plated with tin whereby aneconolfiical' basic structure is had. The casing-L shell is entirely covered with asphalt 3,

(preferably by dipping it therein while the latter is hot,) the nature of'which is very adhesive or sticky,when not quite cold. While th asphalt on the shell is yet warm I apply cover or carton 4 of cardboard,

pasteboa d or the like which is either saturated or coated with 'paraflin or a similar substance whereby to makeitwaterproof,

the heat and the natureof the asphalt causing the cover to adhere firmly and closely thereto on both the sides andbottom. In

asmuch as the folding operationcauses portions of the paper onthe bottom toadmit moisture, I then apply a socket or cup 5 of paper or other suitable material, preferably waterproofed, and then dip the cupand the lower part of the cover into pa'rafiin 6 ore other similar waterproofmaterial,

' terial.

-thereof with a fleX'nlewaterproof insula-'- and 8.

Specification, Letters Patent. Pat inte fl F91 13, 191 7,

Application filed May 29, 1916. Serial N0. 100.546.

whereby to etfectu illy exclude moisture from the entire lower portionof the thus far completed reccpt lClG. v v I The asphalt on th interior of the can or casing shell not, f'n' two reasons. suitable as a lining. First. i; is'relatively soft, and would easily'be removed in spots by forc. ing the Zl11( eleineni (presently described) thereinto; and sccmdly, its surface is sticky, or adhesive. In order. therefore, to overcome these ohjertionable features I fill the cavity with hot pitch 7, which is then poured out and that left (and constituting the lining) allowed 10 harden; The surface presented by it will be extremely hard.

smooth and glassy. not liable to be injured by placements or-re novels of the zinc-element. and allowing thesewith the, greatest freedom. a

The receptacle above described'is of great utility. The shell 2 is of an ineitpensi e ma- The asphalt 3 coats eyery part tion and is easily anl readily applied. The cover 4 adheres firmly and closely to the asphalt and will not readily be removed or loosened therefrom by moisture 'or otherwise, and it PTOVlflQL an additional measure damaged by tearing therefrom or becoming ofsafety in'th'at it is waterproof. The cup or socket Sand the paraffin ('3 not only effectively exclude moi iture from. the lower parts of the receptz cle, and. especially the overlapped portions of, the cover 4, but also provide a smooth bottom on which thearticle securely rests; whilethe-hardened pitch lining 7 is of reat utility in affording a smooth. glossy, fri itionless surface for the passage of the zinc element. in protecting the asphalt between it and the shell 2, and in adding a supplein ental insulation against electrolytic action.

The battery may be subjected to rough handling without d: nger of'injury thereto.

Each of the parts oi. the receptacle stifi'ens,

protects and reinfoi ces the others, and the letween the element's2- 8 designates the usual zmc element, to

.Which is attached ti 1e negative wire 9. 10.

denotes the carbon surrounded by any suitable depolarizing inaterial 11 inclosed in a sack20 held thereon by a cord 12. 13 designates a preferably chemically pure absorbent paper Wrapper around the sack 20 and cord 12. These are common in the art.

When the parts 818 inclusive have been placed in the receptacle in the usual manner,

a suflicient quantity of ammonium chlorid or othersuitable salt 19 is placed thereon-to fill the receptacle to about the point indicated by 14, whereupon a vent-tube 15 is placed in position, resting, on and preferably partly Surrounded by the salt. .Pitch or other suitable sealing material 16 is then used to com' pletely fillflthe'receptacle. Thecap 17 may then, if desired, be removed from the tube 15, Water pofired thereinto to dissolve the sal ammoniac and chargethe battery,"and

the cap then replaced.

An air space, comprehended by the space which Was occupied by the dry salt, is'thus provided, and in this the gas may collect, Without danger to the vent or'other part of the battery.

This construction spilling.or -evaporation are prevented and WhiCh.iS not only as clean as-tlie ordinary dry battery, but whichseflec'tively used on vehicles which and a pitch lining is one in and-by are subjected to shocks and vibration.

While I have wet battery it will be very clear to those skilled in the art that the receptacle hereinabove described is well adapted for a dry battery, and therefore desire that no limitation of my claims beinferred because of such specific disclosures.

-Having thus described my invention I claim as new the following, to-witz 1. In a battery, asphalt covering its exterior, a waterproofed cover surrounding said asphalt, and asphalt covering the interior of the shell.

2. In abatter'y, a metalliccasing-shell, asphalt covering its interior, and a pitch lining covering the asphalt.

3 In. a battery, a metallicv casing-shell, asphalt covering its interior and exterior, for the interior asphalt.

4. In a battery, a metallic casing-shell,

asphalt covering its. interior and exterior, a

pitch lining for the'lnterlor. asphalt, and a parafiined cover for the exterior asphalt.

In testimony whereof I hereunto aflix my signature this 22nd day of May, 1916.

, Enwrar. c -LLENDER;

described and illustrated a a metallic casing-shell,

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