US1185177A - Electrode-making machine. - Google Patents

Description

S. L. CASELLA. ELECTRUDE MAKING MACHINE. APPLICATION FILED IULYS, 1913.

1 1 85, 1 77. Patented May 30, 1916.

7 SHEETS-SHEET I.

ma Moz s. L. CASELLA. ELECTHODE MAKING. MACHINE.

APPLICATIONv FILED IUL( 3\ (913.

` L V n no' v I `s. L. cAsELLA ELECTRDDE MAKING MACHINE..`

` APPLICATION FILED 1ULY 3. IBIS.,

' 'Patented May 30,1916.

7 SHEETS-SHEET 3 -s. L CASELLA, ELECTRODE MAKING MACHINE.

y APrucmo'u me luLY a. ma. y 1 A Patented May 30, 191.6, 1 SHEETS-SHEET 4;

s. L, CASELLA.

ELECTBODE MAKING MACHINE.

APPLICATION FILED IULYS. I9I3. A I 1,185,177'.` Patented May 30,1916.

S. l.. lCASELLA.

ELYECTRODE MAKING MACHINE. APPL'lcATioN f|LEn1uLY3,1913.'

1,1 85,1 Patented May 30, 1916.

L. CASELLA.

ELECIRODE MAKING MACHINE.

APPLICATION FILED ,IULY3. 1913.

Patented May 30, 1916.

sHEETs-SHEET r.

Y RK, @@YQSSGNQR micoiqizffiia` HUBERm-QE NEW "YORK, l

` that tllwinlx'lline, is operated. `More` par 1- `contro'llcil by the movementmf the tziblezto bring the `liohlsl successively into` position mlStsite: Lollmvethevzprious pperutifjns performed qother "ftm'cs of construction, and details,

1 `willlml'eiliibftci'"morefullyappear. i "65 inci "fxjfiliy invention)illustriited in the :icuiinpfaliiy-l luid ii'm.-

\ ng drawings, and shfill theijeuftei1pointl out y my lluvciltlonmclziims.'` 1 1 L Figure Lis a front elevation of "a com- 70 Sis zihOi-izorital sectionofthe same on laril jiilrgcd scaleftaken Online 3-3 in Figsi tfible fajndfslotted guid `sleeve thereoiif in plzmythewvooden top for the` table andthe `v the iQtntinullocking mean'sforl the table, l

jdetnilf "elevation 0f the` table a11dunderl ingitliijpmrt fas viewed rQm tl1eiighi;` in @l n; t Fig; 3, mel handle `being removed for clarity` eg (if my fwaullthe right.` Fig. 5` is u Similziif View i following i funken `onsilplzmeco1'responding t0 the` line n 5 f5 Q Fig. `2},"1ookin,f`g tovyardvthe rear. Fig. 6 isjan elevatioml partly "inj section, vof" `dperations;l the liwijpzirt of the machine, "showing the umg 1r tei-inl `in a `iiotiie` mechanism for'thelmachine. Figi? mctiirgfle; anenlzuged detmlinectional elevation" ESP-wm-@mmine embodying `my invention. i*

` teiiiiittently actuating the `feeding wheliii 1 i The` ill `ticaite'cl"macliixie `has rtativ nular top 4 of wood or other material which will not be corroded by the depolarizing material, and this wooden top rests'I upon and is secured to the table; 1, whioh is preferl ably of suitable inetah. such las steel. The table is provided with four similar substantially cylindrical open bottom molds 5, 5, 5f and 51 arranged ninety4 degrees apart, and provided with'mouths slightly elevated above the plane of the table, as shown. The vertically reciprocative shaft or rod 6, about kwhich 'the table l rotates, bears in the top 7 of the standard 2` and, on its'irpper end above the table, -carries four operating'heads arranged ninety degrees apart and adaptedP to operate simultaneously upon the material in the respective molds, the four heads eX- tending out from a common collar 8 lixed to the shaft 6. These four heads will now be described in the order of their operation.

The first or compressing head, which is shown at the right in F ig. et. and at the front in Fig. 1, comprises a wooden'plunger 9 which is slidable through a guide sleeve 10 carried by a supporting arm 11 extending up from the'standard 2. rllhe plunger 9 slides freely through a hole in a horizontal i portion of an arm 12 carried by the collar 8, and weights 13 rest upon an adjustable collar 14 on jthe vupper end ott the plunger 9.' The plunger 9, is therefore, held by gravity with the collar 14 resting upon the' arm 12, and as the arm 12 is lowered with the shaft 6, the plunger 9 follows it, and, in the position of the parts shown in Fig. Ll,

- enters the mold 5 and lcompresses the niaterial in the mold. .The extent oi'thi-s coin-v pression depends upon the number of weights 13, while lthe plunger is positively carried upward by the arm 12 bearing under the collar 1st'. n /V To. assist' the operator inarrangingf sulficient depolarizing material' over the/mouth fiof'themold 5, a wooden backingbrlorm/ 13b of U-shape may be provided which is above the mouth ofthe mold, occupyingithe posi"V tion of the mold 5n in the drawings,1 and which is attached by an arm 14 to the sleeve .10, as shown. As the shaft 6 descends, the plunger 9 presses this material which is. over the mouth into the mold 5L and compresses it 'the required extent. standard is underneath the mold 5 1n this position of the table, and serves as a bottom tending out from the collar 8, anda plunger' rod 1G is adjustably securedat itsy upper end A block 13L on the by a set screw 17 in an externally sci-ewcarbon rod of the electrode, this reducedV lower end fitting into the lower end of the larger portion, as shown. Surrounding the plunger rod 16 is a sleeve 20, which is providedwith a woodenvlower end, as shown, and screws at its upper end upon a bearing nut 21. A coiled spring 22 surrounds the plunger rod 16 and bears at its upper'end against the collar. 18 and at its lower end against the bearing nut 2-1, and tends to push the sleeve 20 outwardly relative to the plunger'rod, while permitting it to yield relative to the rod. The outward movement of the sleeve relative to the rod is limited by an adjustable abutment member 23, which `has an angular portion extending through slots in the guide head 14h and sleeve 20 and bears underneath the nut 21. The abiuarnentv member 23 is slotted, as shown, and is'secured by two yscrews to the guide head 14". The slot in the abutment member permits of its adjustment longitudinally of the guide head 14, and the extent to which the spring 22 is permitted to inove the sleeve outwardly relative to the plunger rod is thereby adjusted.

In practice, the abutment member is adjusted so that dhe lower ends of the sleeve 2O and the plunger'rod 1S are substantially even. As the shaft 6 descends, the sleeve 20 and rod 16 engage the top of the com.-

pacted material in the mold simultaneously, and the further downward movement of the sleeve is thereafter prevented, the spring yielding to permit' the rod to move down indcpendently of the sleeve. The compressed niatcrial is thus perfdrated, a hollow block 2ten the standard serving as a bottom for th'e mold 5l. and permitting the displaced materialv to 'tall down through the hollour center ot the block. As the shaft 6 ascends, the plunger rod 16' is retracted, but the spring 22, being under compression, holds the 'sleeve 20 against the material. inthe mold until the plunger rod is fully withdrawn, and the rod is thus prevented from breaking the compressed material due to its adhesion to the material.

The third operation consists in inserting a carbon rod into the perforation which is formed by the second head, and this third operation is performed bythe third or carbon-inserting head shown at the left in Fig.-

et, and in the position ot the table shown in the drmvings, this operation is performed upon the material in the mold 5". The carbon rods are carried in a hopper 25 which is supported on the upper end of a hopper-supporti g arm 26 extending up from 'fthe stang ard 2, and provided with an angular rotatiyely mountat its- 'other ld ic.) To `impart maarmedesima y nderlthefcontrol i eadfBO' `which are y ,and which `will toilet-wheel 32A is d pawlcarrying being held in enp An out- Vg garmfor] nger 36 is ear-` 4 tieal EreeiprfoozltiveI head1 "30 "derneathlf `the outer "or 'ty Carrying arm- `A he to y he `outer `end lwardlyfby the engaged; The at; thisgis just far 1%341togengage i andownWfar 1 f: 4o fwntiereaf-` ndinel bracket: 41

the opperfsuiportm the hoj'xper-supporting.: arm 2G.

31 `whieh is diS- otuations to *the '11pm the shaft l29. hiohf` engages in the table and serves as a bottom and `thu@ nd, `as' the4 y hditherefore, each y i. oye l and` releases rzln'gjnaterial and forces the electrode `out the llatspring 4L,v whirh is secured to t hI under side of the chute 3S) and le lient, so that it lower` eudextends in a horizoi'xtal plane 7o over` the mold c. The plate 4l) has au au-. piu-lar portion 42 extending in front ol the chute 3f) andthis front plate 42 servos al@ a stop forlthe earbone.V Anareuate slot -l-l is provided -vin the plate underneath the 75` lower'end of the lehute 3S) and a pin 44 pro- 'jeeteinwardly into this slotiand is; carried by` a lever 45 which is pivotoll at its upper end to an extension 4V on the branrh 2'( o'l A coiled :sprlng 47 is scoured at one end to the lever and tends to pull the lever 45 over so as to bring the pin 4.4 to the front end ot the rSlot r43 andfthlls straighten up thel carbon whieh isyresting upon the spring 42. A (zam 48` on the lever 45 cooperates with the eauxV 49 on the head 30. and holdsthe lever 45 iu retracted position when the head 30 is raised,` `while permitting the lever 45 to be drawn forwardly by the spring; 47 when the head 3() is` depreseed. Thus the pin 44 Straightens up the carbon `and arranges it in line with the push rod 31. directly over ,the perforation in vthel material. in the inold `lt will now be clear that a oarbonisreleased from the wheel 28 each' time that the head 30 aseends and as the head 3() descends this carbonfis first straightened up by the inward movement ofthe pin 44 and is thou engaged. by the push rod 31 and :is pushed off the endfof the spring 44 and into the peroration I,of ythe material in the mold 5, A4 hollow block 50 on the standard is disposed `underneath the `mold 5 in thispoeition of prevents the material from being pushed out ofithe `bottom of the mold as the rod is inserted.`

The fourth and final. loperation of the nmchine isfperformed by the ejerfting?r head, whichfis shown at' the right in Figs. 1 `and Sand at the left in Fig'. 2. `This comprises merely `the hollow head 5l on the arm 52 extending radially outward from the collar 8,. in which Vhead issecured a hollow wooden ejeeting plunger 53 so arranged that in the downward `movement oli the -head 511 the carbon inthe 'electrode in the inold- 5, which i l mold is underneath the ejecting head in the position of'` the machine Shownih the drawings, enters` into the hollow interior of the ejecting plunger 53, While the bottom of the" `'plunger pressen against the depolar-r g'of. the bottom `the mold, where it drops y into @suitable yreceptaelelliot shown). y' To thus` lreciproeatejthe" shaft 6` andthe heads i Carried by'it, the lower "end of the shaft is` `conne'eted by a connecting rod 54 toxthe llO" crank 55 on the crank shaft 56, which shaft has its bearings in the lower part of the Standard 2. Means are provided for guiding the shaft 6 during its vertical reciprocation to `prevent any rotational movement of the sha'i't. On the upper side of the table 1 thereis provided about the shaft 6 a slotted guide sleeve 57, which is provided with four vertical slots 58, and keys 59 in the shaft 6 enter into these guide slots 58 A Las the shaft is reciprocated. 'A similarl slotted guide is also provided in the lower part of the standard 2beneath the table and a key 60, which extends through the shaft 6, moves in this slotted guide and rigidly holds the shaft 6against any tendency to,

rotate. To prevent the depolarizing material from getting in contact with the. me-l tallic guide .sleeve 57, a .collapsible fiberI shield'is provided, Vcomprising an outer stationary ber sleeve member 61 carried by the wooden top 4 of the table, and an inner telescopic fiber sleeve member 62 carried by the collar 8 on the shaft 6. The actuation of the shaft 6 is controlled by the rotational movement of the table 1. On the underside of each of the four peripheral extensions of the table l'there is provided a cam, these cams being numbered respectively 63, 64:, 65 and'66. A power driven pulley 67 is loosely mounted upon the crank shaft 56, andto clutch this pulley to the crank shaft 56 any suitable single rotation clutch mechanism may be provided, such, for instance, as that shown in the patent to Herbert E. Marshall,

, No. 945,565, of January 4,1910. This clutch mechanism forms no part of my invention and is conventionally indicated in the drawing by the reference numeral 68. An actuating rod 69 extends up from this clutch mechanism through ay bearing 76 provided for it in the'lower part of the hopper-supl porting arm 26 and has on its upper end a .slidable cam member 71, which fits in 'the bearing 70 and is provided with a cam face on its upper end arranged to coperate with .l the cams 63, 64, 65 and 66. The rod 69 and' the cam' member 71 are normally maintained in elevated position by a thrust spring 72, which is arranged in a suitable caseon the base 3 and bears against the lower endof Va rod 7 3 on the under side .of the clutch mechanism, which rod extends into' the cylindrical case for the spring 72. lnthis .elevated position of the clutch mechanism, the pulley 67 is disconnected from `the crank shaft 56 and the mechanism is so constructed that, 'as the rod 69 is depressed, the clutch is thrown in for 'al single rotation and is then. automatically thrown out again. In operation, `the table 1 'i's rotated i onestep 'until a cam-on the tableftrips theffclutc-hby ji'riding over the cam member 7l`o'nithe clutch Vrod 69 and depressing this rod,y and "thus causing` the pulley 67 to be connected to the crank shaft 6 and to impart one complete actuation to the shaft 6 and the heads carried thereby.

In Fig. 3 is shown the relative positions of the cams 65-and 71 after the cam 65 has passed ,the cam 71 and tripped the actuating mechanism. The cam 71 is immediately re-4 turned to its elevated position by the spring v72 and vby its engagement agamst the rear of the cam 65 serves to lock the table against backward' rotation. Any back lash is thereby prevented, but, as an additional precaution, further means may beprovided to prevent back lash, such as shown in detail in Fig. 3a. A rearwardly extending .lever 74 is' pivoted between two upright arms 75 on the sleeve-supporting` arm 1l, and a cam 76-is provided ori-the upper side 4 of the rear end of this pivoted 'layer 74 in the lever 74 against the tension of the spring 77, and after the cam on the table rides off the cam 76, the latter is immediately elevated, and the rear end of the two cams are shaped to abutagainst each other and prevent any backward movement of the table. In Fig. 3 the cam 64 is shown as having just ridden over the cam 76 and as locked thereby against backward movement.

l It' it is found that the clutch-actuating camA 71 is sufficiently etl'ective in preventing back.

lash, this additional mechanism may be dispensed with.

To facilitate the rotation of the table 1, the table is provided with four equally spaced handles 78, 7 8, 7 3c and 7 8d. Thesev handles are attached to plates 7 9` which are pivoted underneath the table on vertical axes 8O and these handles are resiliently heldin' their rearniost position of rotation by spring-pressed bolts 81 arranged underneath the table and bearing against lugs S2 on' the left side of the respective handle plates 79. This position of rotation under the influence of the spring bolts 81 is limited Aso by a set screw 83 in a lug 84 on the right -side of the handle plates, which bears against the edge of the table l. The handle plates 7 9 carry an abutment member 85 on .their right side which is set into a groove in a thickened portion on the under side of the plates, andbetween the third' and fourth operating heads there is' provided a stop 86 y `which, in the construction shown, is a stationary flat piece set in a" slot on the top of the standard underneath the table in position to enga-ge the abutment 85 on the par- (lolmlm'izng nmterul from getting; into the lloaul orfltho tnblo und corrorllng the Inotal 4. l fpmts l go` lt"g1 obvious that various modfczitons may be mmlo in `tho construction Shown in material th, (lrzrwing `amd above particularly :dey mmeditely scriliod; wlithlntho prlnoplo and scopo of md th `my invention. l o y 35 olllin'lnv o `1 l o v 1. "An electrode-making machine compri/singo. xnold, means for compressing' Llepolor` zngmzrtorlztl in thomolfl, means for {xxl} `ally performing the compressed `n'xate1'al `in;` `90 the" mold, means for inserting an eloctlfcmlof` inltlio perforation, uml moans `for ojecting;v yacompljotod electrodo from thomolrl. j

` WQDAn oloctroloqnaldng machine compris-4 `ingu moldwJ compressing plunger for con` 95 "pressng!(lepolal-zing material in thoxnoldl, "wperfornting plunger `for amally perf0rating the,(:ornprossedmatrial in the mold, :in [elootrofle inserting plunger` for insortngfjan l olectrod "plunge `rejecting the cofmploted electrodo l from th `nolrl,` the plungors and tho mold" being mountedforfrelatve shifting `morol l the `Stop mentffor lornging;theplungerssuccessively"l l eased fork rotlrton in such perforation, on ejeotlng` `:Loo l ontol registorl with: t-llo `mold, and motivolov oaohgplungers `operated when itisbrought l 8JAnolectrodonmkngmoohlno compris@ "1104 l f' rate" thooomprssel lx'naterial,L In electrodo- 115 H "hi`ngn'1'otntvo `table having four rnolcls thero- 12h]` ally perforate compressed material in its mold, the 'third plunger being adapted to insert an electrode in the perforation of the material in its mold, and the fourth` plunger being adapted to eject the cornpleted electrode from its mold, motive means for the plungers, and means for imparting actuation to the plungers controlled by the rotation of the table as the molds are successively brought into register with the plungers.

5. An electrode-making machine comprising a rotative table havin a plurality of molds therein, a plurality of operating plun` gers adapted to operate upon the material in the respective molds as the molds are successively brought into register with the plungers by the rotation of thev table, a

. plunger-actuating part, -a power-driven part,' clutching means for coupling thel power-driven lpart to the plunger-actuating part, and means on the table for operating the clutching means at each time\ the molds f table for operating are brought into register with the plungers.

6. An electrode-making machine compris-.-

ing arotative table having four molds therein', four plungers adapted to operate simultaneously upon the material in the respective molds, one plunger 'being adapted to compress depolarizingfmaterial in its mold, the second plunger being adapted to axially perforate compressed material in its mold, 'the third-plunger being adapted to insert an electrode in the perforation of thematerial in its mold, and the fourth plunger being adapted to eject the completed electrode from its mold, an actuatingfcrankl for the plungers, a power driven member, clutching means for clutching the crank to the power .driven member, and means on the the clutching means as the table is rotated. i y

7. An electrode-making machine. having, inl combination, a mold, a compressing plunger forjcompressing depolarizing material in the mold, a perforating plungermovable toward and away' from the mold for perforating the compressed material in the mold,

5..,gers adapted to operate upon means for bringing the mold successively into register with the compressing and perforating plungers, 'a closely fitting sleeve extensible to the perforating end of the perforating plunger and slidable backw'ardly upon the plunger to -perniit the perforation of the material, and means for yieldingly pressing such sleeve toward .theperforating end of theplunger for preventing-the breaking of the material by the Withdrawal of the perforating plunger from such material after the 'perforation has been made. 8. An'electrode-making machine comprisinga rotative table having a plurality of molds therein, a plurality of operating plunthe nuiteriall x11-*the .respective molds as. the molds are ineen?? successively brought into .register vvith the plungers by the rotation of the table, abutsingle rotation clutch for coupling the power-,driven part to the plunger actuating part, and means on the table for causing the single rotation clutch to couple the power-driven part-to the plunger-actuating part at each step of rotation .of the'table.

t). 'An electrode-making machine comprising a mold, a compressing plunger for compressing depolarizing .material in the mold, a Iperforati'ng plunger for axially perforating the compressed material. in the-mold, an electrode-inserting plunger for inserting an electrode in such perforation, an ejecting plunger for ejecting the completed electr ,de from the mold, and means for bringing mold successively into register with the respective plungers in the` order recited. A 10.'An. electrode-making machine comprising a plurality of circularly'arranged molds, a compressing plunger for compressing depolarizing material in the molds, a

perforating plunger for axially perfcrating j the compressed material yin the molds, an electrode-inserting plunger for inserting an lelectrode in each such perforation, aneject- 'ng plunger for ejecting the completed elecrodes from the molds, means for supportng the plungers in a' circle in concentric nlinement with the circularly arranged prising a plurality of circularlyarranged molds, a compressing plunger for compressing fdepolarizing material in the molds, a perforating plunger for axially perforating the compressed material in the molds, an electrode-inserting plunger for inserting an electrode in each such perforation, .an ejecting plunger for ejecting the completed elecrodeffrom the molds, means for supporting the plungers in a circle in concentric alinement with the circularly..arranged molds, a rotative mold-supporting table carrying the 'molds for bringing a corresponding number' of the molds into alinement with the respective plungers so that the plungers will operate successively on the depolarizing..

material in the respective molds, means for operating all of the plungers at once setliat 4each plunger performs its own operation diEerent from that of the other plunge-rs,

handles on the table for imparting forward rotation thereto, abutment means-for stop- I ping the table at each step of forward-rotaim 'espeetive plnngers,

ngallot the plilngers at once so that eaeli powerldriven parti` a single rotation clutch and means for operatperformsyits; own operation'olifferi-l e e 1r that ofthe otherfplungersi suoli i including a rota#l part, a rotative d ffor oouplingftlie power-driven part to the plunge vaetuating part, anda clutch-mieren' x ing member' o:1'1"1'1e. l;by the table.

i prisin'ggy` a` plurality of eireulaily arranged inohlsl; a compressing plunger foreompress`` il ing depolarizing material in the molds, ai `y1rettorating; plunger for axially perforating lltrodee fron) the molds, means for supporting i e i, rotative` `imold-supportingfltable carrying @l `lt `li-`ope-1=`` the molds;` for bringing `eorres'ponding i i 1' l H nunibe" ymaehine Conny i 'lyfarranged the respeetive plungers soritluttheplungers` 'ingyixiaterial in therespeotive molds, means l. so that each plunger performs its owrop "eration"`di`fferent`- from that the 4other q1 plungels,` `handles on the table for limparting "ward rotation, and movable abutments con- 1 trolled by the handlesfor releasing the table farrangecli" table; Cari lrrespond.`-

r, bueh1 plungenoperating means including a x pqnver-drifven part, a `single rotation clutch Y 4for coupling the power-driven part to the plungermetuatingpart, `and a olntoh-operat! "ing member Carried by thetable.`

` lo; An eleetrode-niaking` machine i conu-` `pi'i ngz;` a `1n1ol'd", a compressing plungerI for `vrouipressingfidep'olarizing `material in the fnrating the Compressed `material in the niold,` an"eleetrode-inserting plunger for inserting all eleotrmle` in suoliperforation, :in `ejectingr plunger 'for ejeoting theoorripleted ilylarranged'\` eeleetrode` `from tlieiniold, means for bring` for, `eompressmolds;

the respeotive plunger-s inthe order recited, Aandi ay yieldable springlpressed sleeve slid- "ablylmtsnugly surrouiuling the perforat`- "ing'plungeif so as'to` press uponzand prevent 17.` An' electrode making maehlne` comprismga mold, a eompressingplunger for l "lniold -m`o1d`,' an "eleetrodenserting plunger for in- Wi the` An"electrodefnxaking machine vconi-` the plungeirs' in a `circle inconcentrioalirien `3 1 nient `ivithnthe oiroularly arranged molds,`a'

" of" the molde into alineinent 4with:`

"will `operate successively onthe dep(`)1`ari-` or operating all of the plimgers at `once` `forwardfrotation thereto, abutment means nlor stopping the table at each step Q'or-` to permit tolrotalte another step forward;

rotative `plunger-actuatingipart, a rotative nxolcl, aperforating plunger for'. axially perf j ing;tliefnlo'ld` successivelyfinto register With irrying r molde perforatingplonger-for axially perpondmgltoratmg; the compressed` material 1n the" Y the compressed materialiri the lmolds, an,I e 1 eleetifodefinserting plungerffor inserting an electrode 1n l such` perloration, an meeting 'plunger tor egect'lng the@ completed elifeL e thebiieakiiig of the (compressed material by the withdrawal `oiltlie perfor-ating plungerm125 compressingr` depolarizing material `in'fthe` serting an electrode' in such' perforatlen, an

ejecting plunger for ejecting the completed electrode from the mold, means fr'loring-'x` fing* the moldsuccessively into register With the order recited, an

therespective plungers 1n van ,electrode-containing hopper, and

intermittent eeldevice for feeding the elecv trodes from the and in register with hopper one by one between the electrode-inserting plunger and the perforation in Vthe perfo'- rated depolarizing material in the mold.

p18. An electrodeinaking machine comprisinga mold, a compressing plunger for compressing depolarizing "m'aterial -in the yzo 2g having a plurality mold, a perforating plunger for axially per-' forating the compressed material in the' mold, an electrodeinserting' plunger for inserting an 'electrode in-such perforation, an ejeeting plunger for ejectingthe completed electrode from the mold, means for bringing the mold successively into register With thel respective plungers in the order recited; an electrode-containing hopper, a feed Wheel of vperipheral electrodereceiving grooves, a paWl-and-ratchet device for rotating the feed Wheel one step at each operation of the plungers to feed the electrodes from the hopper one at each step, and

means for bringing each electrode betweenA and in register with the electrode-inservting plunger and 'the perforation in the perforated depolarizing material in the mold;

19. An electrodeemalringmachine having, in comblnation, a mold, a compressing plunger ior compressing depolarizing material in the mold, a perforating plungerjior perforating the compressed material in the mold,

rating the compressed material in the mold,

an electrode-inserting plunger for inserting an electrode in the perforation, an ejecting plunger for ejecting the completed electrode from the mold, means for relatively shifting the mold and the plungers for bringing the mold and the plungers into register inthe successive order of the plungers recited, and means for yieldingly operating the coin pressing plunger in effecting its compressing unction.-

Intestirnony Whereo` l have ailixed my signature in presence of two Witnesses.

s'ncoNDo L. CASELLA.

" Witnessesz p Vieron D. Bonsai,

' l/VM.V ASHLEY KELLY.

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