US1446041A - graves - Google Patents

Description

Feb-20, ,1. 923. 1,446,641

J. GRAVES CARBON INSERTER FOR BATTERY CORE MAKING MACHINES Originl Filed July 5, 1918 2' sheets-sheet 1 pi T fa/L72 Graves,

FehZG, 1923. 1,446,041

J. GRAVES CARBON INSERTER FOR BATTERY CORE MAKING MACHINES Original Filed July 5, 1918 2 sheets-sheet 2 III! mmlm

3 John Original application filed Patented Feb. 20, 1923.

UNITED 'ST TE T' s '0 F IC'Ei;

JOHN GRAVES, 0F MADIsonwIscoNsIN, ASSIGNOR 'IO FRENCH BA TERY & cAnsoiv COMPANY, 10F MADISON, Wisconsin, A ooRPonA'rlo .orwrsoonsm.

; CARBON msnn'rnn non ,B TTERY-CORE MAKING jlvriionmns.

To all whom it may concern:

Be it known that 1, JOHN GRAVES, a citizen of the United States, residing at Madison, in the county of Dane and State of WVisconsin, have invented a certain new and useful Improvement in Carbon Inserters for- Battery-Core-Making Machines, of which the following is a specification.

In the manufacture of whatare commonly known in the trade as dry batteries, for use in hand flash lamps and the like, it iscommon to surround a fixed carbon pencil with a more or less tightly pressed cylinder of depolarizing chemicals, commonly called llllX. quently been common to insert the carbon pencil in the mold and then tamp the de polarizing material or mi): about it, but

more satisfactory results areobtained both in operative manipulation of manufacture and in actual-use in a battery, if the cylinder of depolarizing material is first formed in a' 'mold and then the' carbon pencil'is pressed into it.

United States patent application, Serial Number 243,503, filed July 5, 1918, of which this applicationIis a division, shows and claims a machine which prepares'a cylinder of mix material preparatory to having the carbon pencil inserted therein and shows, but does not c1aim,'the mechanism of this invention operative to insert the carbon pencil. p

The object of this invention is to provide a comparatively cheap, easily constructable and e'liiciently operating mechanism for inserting the carbon pencil in the body of the mix. The invention consists in mechanism for attaining the foregoing objects and in many features and details of construction which will be hereafter more fully set forth inthe specification and claims.

Referring td the drawings in which like numerals designate the same parts thruout the several views:

Figure 1 is a side viewand Figure 2 a front view of mechanism illustrating this invention.

Figure 3 is an enlargement of Figure 1,

, taken in section at approximately the center In practice hereto-fore it has frej Figure 5 is a saeom1- detai1{view ,ofthe carbon insertlng plunger showing afmethod July 5, 1918, serial 1%. 243,503. mamm ls application m at/ra 1921, Serial No. 452,071. Renewed January 15, 192

by which a difl'erenttool can befinserte'dgf Figure 6 is a l lgure 3. Y

Figure 7 is a perspective view o-f'aparticular form of core which sometimes, has

plan view 'on'the line 6 of' to be made and isused as illi stratingone ,7 iormof the device which a machineiof' 'this "j,

invention is capable of producing;

Figure 8 shows parts of a carbon releasing and feeding machine. For the convenience ofready comparison with the original application, from which this application was divided,'the samerree erence numerals used in said original application are retained in this nate the various parts.

one to desig-,

This device referred to in said priorap- 'plication under the general numeral 60*,

is supported by a bearing that numeral in Figure 3. y

portion of the frame The carbon inserting and ejecting-meek anlsm 1s driven'by shaft 370, suitably supplied with power not enteringflin'to this'i'nvention. On "shaft370, and 'in a suitable recess in frame 60, is adriving'wheel 372 carrying on its face a roller 374 adapted to travel lengthwise of a slot ina crosshea'd engagement" in vertical track members 378 (Figure 1). Rigidly secured to this c1fosshead and slidably mounted in frame 60is a vertical plunger 380, whose lower end car- 376, whose ends are adapted for-sliding rice the carbon inserting 'to ol 382." {,Rotav tion of wheel 372 operates "through the mechanism 'just, described to properly reciprocate this tool 382 to force a previously c prepared carbon pencil 384, fed to it, 5 into the cylindrical tamped core of mi'x 386 to about the depth shown in Figure 7. In order to feed the carbon pencils to a position where they can be 'driven intoithe previously compressed bodies ,of depolarizing'mater'ial, a suitably designedretaining chamber and escapement device is provided. In the particular form of the'device illustrated in the drawings, theretaining chamc ber consists in a tubular member, made partly of glass 388, and partlyo-fmetal390,

suitably supported", as shown in Figures 1,2

and 3,"so that its lowerend 392 dischar'ges carbon pencils 38,4 into'the path of travel of the lower end of carbon inserting tool 382. An escjapement mechanism for retaining these carbons in the tube and feeding them one at a time is provided, the same, in the particular case here shown, comprising an escapement lever 394, pivoted at 396, having its upper tooth 398 adapted to enter a suitable slot 400 in tube 390 so as tothere engage and press upon one carbon member 384 therein when desired, and having in its lower endan adjustable block 402, detachably securable in place by a screw 404, and carrying a projecting pin 406 entering the path of travel of the bottomcarbon pencil 384 within. the tube 390. This cscapcment lever 394 is so adjusted that when upper tooth 398 engages one carbon pencil in the feeding device, pin 406 will be out of the. path of travel of the bottom carbon pencil therein, and allow such bottom pencil to drop from tube 390 into the path of travel of tool 382.

The pivot pin or shaft 396, heretofore referred to, is mounted in a bracket 408, surrounding and attached to metal tube 390, as clearly appears in Figures 2 and 6. Rigidly attached to one end of this shaft 396 is a crank arm 410, having a crank pin 412.

Loosely journaled on shalt396, between crank arm and bracket 408, is another crank arm 414, having a long crank pin 416, which extends outward so that it can be connected with crank pin 412 by aspring 418. lhis crank pin 416 is also mounted upon the lower end of a vertical driving rod 420, slidable through a bracket 422 on the crosshead 37 6. Rod 420 is provided with screw threads 424 along its length on which travel two adjusting nuts 426 and 428, one located above the other below bracket 422. The arrangement of the parts recently described is such that the two crank pins 412 and 416 are always on opposite sides of the shaft 3%, either above or below the center thereof. and when rod 420 is elevated so as to move crank pin 416 from one extreme position, say, below shaft 396, to the other extreme position, say above this said shaft, the tension of spring 418 automatically correspoi'idingly moves the other crank pin, thus rocking shaft 396 and consequently, tilting escapement lever 394 rigidly attached to shaft 396 by any suitable means.

- In the normal operation of the machine the adjusting nuts 426 and 428 are so placed that when crosshead 376, and consequently bracket 422, reach the upper limit of their vertical movement under the control of shaft 370, they move the parts to the position where escapement 394 releases the bottom carbon pencil 384 from tube 390 and holds the next succeeding carbon above in place,

and that when the parts named reach their lower limit of movement, bracket 422 strikes adjusting nut 428 and reverses the position of the escapement, or, in other words, moves it to the position shown in Figure 3, wherein the lower carbon pencil is supported in its supply tube by pin 406.

If a carbon pencil 384 were allowed' to drop from tube 390 directly on to a compressed cylinder of mix material 386 in the mold which is belowthe carbon inserting mechanism, it would not, in the absence of a holding mechanism necessarily assume such a position that the carbon inserting tool 382 could drive it into the cylinder of depolarizing material. It is, therefore, necessary to provide means by which the carbon pencil as it. falls from tube 390 can be retained and held in driving position under the tooli382 until the carbon pencil has entered the cylinder of depolarizing material a sulficient distance to be self-supporting therein. This result is accomplished by providing the special gripping mechanism shown in Figures 1 and 4.

Slidable crosswise of the machine, in a suitable track provided for the purpose, adjacent to the path of travel of the lower end of thecarbon inserting tool 382, which track in the case here illustrated takes the form of a triangular notch 430, out the frame of the machine, are two blocks or cro- ssheads 432 and 434. Secured to the front faces of these crossheads are gripping jaws 436 and 438, adapted when the crossheads are moved toward each other to embrace and hold the carbon pencil 384 in position under tool 382 and over the cylinder of compressed depolarizing material, into which the carbon is tobe inserted. These jaws just described are reciprocated toward eachother by a pair of bell cranks 440 and 442, drawn toward each other by a spring 444 and moved in the opposite direction through the agency "of izing material into which the carbon is to be inserted long enough so that as inserting tool 382 begins to descend it can bear upon the upper end of the carbon pencil and start it into the compressed cylinder and that jaws 436 and 438 then withdrawout of the path of travel of tool 382 before that tool reaches a position in its downward stroke where it would otherwise strike and injure the aws.

In Figure 5 is shown a carbon inserting tool 452 for the same purpose as tool 382,"

having a detachable lower end portion 454,

in screw-threaded engagement456 with tool The object ofthis construction is twofold. It allows in a given too-l adjustment for length by turning member 454 on threads 456, and it permits the total re-- moval of member 454 and the substitution,

therefore, of a corresponding member of different length, which substitute member might be required when a product of a different height was desired to beproduced by the machine, and it was necessary to change the machine therefor. This capability of substitution also allows for change in the diameter of the tool 454, which most and out of holding relation with the article,

' plunger at proper intervals.

2. In a machine of the character dea rod connected to said member and carrying a pair of stops alternately engageable by an element of said plunger reciprocating means during operation of the latter whereby oscillatory movement is irnparted to the member, said stops being independently adjustable along said rod whereby articlesof vvarious lengths may be delivered to the scribed, a plunger, means for reciprocating the plunger, and means fordeliveringarti- Y.

40 thereby, said article'delivery means includ- I cles to the plunger in position to be driven ing an oscillatory shaft carryinga member movable into and'out, of holding relation I with the articles, a crank arm rigid. on said shaft, a second'crank arm loose on said shatt', a contractile coil spring connecting said crank arms, and a rod' connected 'to, i

said loose crank arm' andto the plunger reciprocating means whereby oscillatory movements are imparted to said loose crank arm and through said spring to the shaft to at predetermined times vcause the member carried" thereby to Y 'holdl. and release thfei articles.

3. In a device of thelclass' i described, in combination withf'a fixed support, a pair-- of jawsslidable' inthe support toward and arm moving the bellcranks and consefrom each other, a pair o-fibell cranks pivoted at one side of the jaws. having one, armeach engaging one of said jaws. and" the other arm adjacent to each other, spring mechanism on the first mentioned bell crank quentlythe jaws in one direction, a'carn member, and an operating member between said cam and the operating jaws'of the bell crank adapted, as the cam moves, to

operate the bell cranksagainst the action of said springs. v v 1, In witness whereof, I have hereunto sub= scrlbed my name 1n the presence of two w1tnesses.

Witnesses:

W. C. Bos'rAo, BEN W. PARK. 1

I o'rin GRAVES.

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