US1583312A - Bobbin-making machine - Google Patents

Description

' 1,583,312 o. K. REINHARD-r 1 'BOBBIN MAKING MACHNE May 192.6,

iff .1A 'l HZ' Filed Dec. 18,

O. K: REINHARD-r l BOBBIN MAKING MACHINE- omite@ May 4 ,1926.A A l 1,583,312

o. K. REINHARDT BOBBIN MAKING MACHINE Filed Deo. 18, 1922 8 Sheets-Shet' s' 1:." i: l.: 1f o y yf1 u v Y l 1.9

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o.K;RmNHARDT 1 BOBBIN MAKING MACHNE Fi1ed Dc. 1a, 1922 l s sheets-sheet e @jaar May `4 1926. 1,583,312

o. lK. REINHARD-r I BOBBIN MAKING MACHINE Filed Dec. 18. 1922 a sheets-sheet s Patented May 4,`A 1926.

UNITED srares Partnr OFFICE.

OTTO KARL REINHARDT, OF JAMAICA, NLEHTr YORK, ASSIGNOR TO YALE; ELECTRIC CORPORATION, A CORPORATION OF NEW YORK.

IBOBBIN-MAK'ING MACHIN.

Application led December 18, y1922. Serial N'o. 607,575.

. To ZZ whom t may concern;

Be it known that I, OTTo Kani. REIN- HARDT, av citizen of Germany (having taken out first United States papers), and a resident of Jamaica, county of Queens, State of New York, have invented certain new and useful Improvements in Bobbin-Making Machilies, of `which the-following is a specification.

This invention relates to bobbin making machines adapted for the pi'oduction of bobbins employed in the manufacture of dry cells.

An important object of theinvention is to provide, in a machine of the character mentioned, a generally improved meansto facilitate speed and accuracy in measuring the carbonaceous niiX or depolarizing mass in combination with cooperative mechanism for intimately compressing such mir; into a relatively compact mass. Y

A further object lof the invention is to provide in the above mentioned combination a means for introducing an electrode into the intimately compressed mass, and thereafter imparting to the bobbin a final compression to more intimately and firmly imite the bobbin components prior to their being ejected from the machine.

@ther objects and certain advantages of the invention will become apparent from the following description when taken in 'connection with the accompanying drawings in which- Figure 1 is a front elevation of the machine embodying my invention.

Figure 2 is a vertical sectional View on line 2 2 of Figure 1. Y'

Figure 3 is an end elevation of the machine viewed from the left in Figure 1.

Figure 4 is a horizontal sectional View taken on line 4 4 of Figure 1. l

Figure 5 is a vertical sectional view taken on line 5 5 of'Figuie 1.

Figure 6 is a horizontal sectional view takenon line 6 6 of Figure 5'.

Figure 7' is a fragmental rear elevation of the machine. 'Y

Figure 8 is a sectional view takenony line 8 8 of Figure 1. v

Figure 9 is a view similar to that of Figure 8 showing the several elements thereof in different operative positions.

Figure 10 ,is` a sectional view taken on l'. ie 1.0 10 'of Figure l.

taken "more particularly described. frame of the machine is indicated as a whole by the numeral 9, and co-mprises a base 10,

Figure 11 is a sectional view taken onr line 11 11 of Figure 3.

Figure 12 is a detail view showing in 'elevation a feed hopper agitating mechanism.

Inthe drawings wherein for the purpose of illustration is shown what I consider the preferred'form of my invention, the numeral 5 indicates, as va whole, a frame 'or pedestal which includes a pair of vertically v disposed supportingbrackets 6, adapted for the reception of a box-like container 7, into which the depolarizing 'material is deposited and from which it is transferred to an endless conveying mechanism indicated as a whole by the numeral 8,` and hereinafter The main adapted to cooperate withthe upper portion tion of cooperative elements hereinafter more particularly described. To theupper portion of the frame 11 there is suitably journaled a crank shaft 12 adapted to be driven from an appropriate source of power, not shown, through a belt 18 and a pulley- 14, th-e shaft 12 being provided, intermediate its ends, with `a crank 15. To this crank thereis suitably connected a pitinan 16., operatively connected to a cross head 17, adapted to reciprocate vertically within guides 18,

connected to the upper portion of the frame. The cross head 17 is provided with a spring retaining chamber 19, int-o which is fitted* a yieldable plunger 20 adapted to be adjusted by' means of a nut 21, underv the influence of a compression spring 22 carried within the lchamber 19 and engaging the head 23 of the j alungerv to which 'is suitably connected a vdepending tamper 24e, the function of which ,'11 thereof to support'the various coinbina- ,'will be inore'readily appreciated whenV considering the following description. In proximity to the cross hea-d 17 there is base 10. Reciprocatory ino-vement is imparted to the cross head 33 through the instrumentality of a link 36 pivotally connected thereto, and in turn pivotally connected to a bell crank lever 37 supported by the frame 9. This bell crank lever, at one end, is Vprovided with a roller 38, cooperating Withfa cam 39, suitably connected to a drive shaft 40 j ournaled to the frame 9, and driven through the instrumentality of a sprocket 41 geared to a shaft 42 and operatively connected, by means of an interposed sprocket chain 43 With a sprocket 44 secured to the shaft 42. The shaft 42 together with the several sprockets derives its power of rotation from the shaft 12 through the instrumentality of a sprocket Wheel 45 suitably connected thereto, and in turn connected by means of a sprocket chain 46 to a sprocket Wheel 47, carried by the shaft 42. It Will be appreciated that When the shaft 40 is rotated the shaft 31 by reason of the several cooperative elements just described is raised and lowered carrying with it the compression head 25.

The arms 26, 27, 28 and 29 comprising the compression head 25 are provided With plungers 48, 49, 50 and 51, respectively, which are adapted to be adjusted vertically and thereafter locked in their respective adjusted positions by means of lock screws 52. These plungers are adapted to function respectively to slightly compress the carbonaceous or depolarizing material and artially eject the same, insert the carbon e ectrode, subsequently compress the' carbonaceous or depolarizing material, thereby intimately uniting the components of the bobbin and to iinally eject the more or less homogeneous mass, their operation in detail being more readily appreciated when considering the several features of the machine hereinafter more particularly described.

Directly beneath the compression head 25 and rotating about the vertically reciprocating shaft 31 'is arranged an intermittently operated table 53 provided with an elongated bearing sleeve 54 journaled Within a suitable bearing 55 appropriately supported by the frame 9. This bearing sleeve 54 inv turn is rigidly connected to a clutch sleeve 56 carrying at its upper end a plate or peripheral extension 57, provided With a plurality of notches 58. These notches are .adapted to receive a locking dog 59 carried at the end of a rocker arm 60 suitably supported by the frame 9 and adapted to coo erate With a tension sirinO 66 which P e functions as a means for retaining the dog 59 either within a given notch 58 or in engagement with the peripheral surface of the plate 57. The dog 59, When positioned Within one of the notches 58, positively locks the table 53 in a given position during a predetermined phase in the cycle of operation of the machine but is adapted to be released from the notches 58 successively by means of a release cam 61, carried by a collar 62 loosely mounted upon the sleeve 56, when the sleeve is so moved through the instrumentality of the mechanism presently described as to bring the cam face 63 of the cam 61 into engagement vvith a depending lug 64, carried by the arm 60. To the collar 62 `there is also connected a radially extending the table 53 in a given position in Which positien it is maintained during a predetermined phase in the cycle of operation of the machine. `Upon return movement of the arm 65 in the direction of the arrow shown in Figure 9 the release cam 61 is so moved into engagement with the lug 64 as to move the dog 59 out of the particular notch into Which it has been previously seated. Upon disengagement of the dog 59, the paWl 66 Will have moved a sufficient distance to engage the next succeeding ratchet tooth 67 and the release cam 61 will also have moved a sufcient distance to maintain 'the dog 59 retracted a sufficient length of time to prevent its entering the notches 58 at the beginning of the Areverse movement of the arm 65. By the time the release cam 61 has moved out of engagement with the lug 64 the plate 57 Will have so moved that the dog 59 will engage the peripheral margin of the plate 57, its engagement being maintained until the arm 65 has again reached the limit of its movement in the direction opposite to that indicated by the arrow of Figure 9 at which time the dog 59 is again permitted to enter the next succeeding notch 58.

fn order te prevent the table 53 from so moving, by reason of its momentum upon the completion of the ope-rating stroke of the arm 65, as to prevent the dog 59 from entering the next succeeding notch 58 1 have provided a friction bra-lie indicated as a whole by the numeral 69, and comprisingV a pair of adjustable bands 79, adapted te frictionally enga-ge a brake disc 71 suitably con nected to the elongated bearing 54 and adapted to rotate therewith. The means for driving the intermittently actuated mechanism operating the table 53 and hereinbefore described comprises a cam lever 72 pivotally connected to the frame 9 and provided with a roller 73 adapted to cooperate With a cam 74 carried by the shaft 40, the outer end of the arm 72 being pivotally vconnected to a Cfr pitman rod 75' operatively connected to the outer end of the arm 65 by means of a tog,- gle or universal joint 76.

The rotatable table 53 hereinbefore mentioned is provided', near its periphery, with a plurality. of. Vpockets or openings 77 carrying bushings 78 preferably constructed from wood or other suitable material upon which the carbonaceous or depolarizing material has but little detrimental effect. yThese bushings are adapted to receive the carbonaceous or depola-rizing material from a hopper indicated as a. whole by the numeral 79, which material, when first introduced, is tampered or compressed to a predetermined density by tlie plunger 24. rlhe table 53 is so rotated as to bring the bushing into which the material has previously been introduced into registration with the plunger 48 which functions to eXeit upon the material a slight compressing influence and at thev same time so move the material within the bushing as to cause 'the same to project slightly below the lower end of the bushing.

Upon the next intermittent movement ofthe table 53 the bushing carrying the previously compressed material vis brought into registration with the plunger49 which functions cooperatively with a selective feeding mechanism indicated as a whole by the numeral 80, and hereinafter more particularly described, to insert or imbed a carbon electrode into the material. Subsequent to the introduction` of the electrode into the depolarizing material, the table 53 vis again, after two successive operations, so moved as to bring t-he pocket carrying the compressed material having the electrode introduced thereinto, into registration with the plunger 50 which, as most clearly shown in Figure 5, is provided with a central passage 8l adapted to receive the upper end of the electrode when the plunger is moved intoV engagement with the surrounding material to exert thereupon a final compressing influence thereby more intimately uniting the carbon and depolarizing mass into a unitary structure. After the bobbin thus far formed has undergone its final compression under the influence of the plunger 50, the table 53, upon, two successive intermittent operations7 is so positioned as to bring the bushing carrying' the compressed material, into registration with the plunger 51 which is of a construction similar to that indicated by the numeral 50 and functions to extract the bobbin from the machine.

Directly beneath the rotating table 53 there is arranged an abutment 8 2 provided with radiating arms 83 which carry at their ends adjustable plungers 84 supportedV directly upon vertically adjustable screw i threaded inserts 85. These plungers, it will be noted, are so arranged as to register with the plungers 24., 49 and 50, respectively, and

function as abutn'ient'sor closures for the lower ends of the bushings; 78. It will be noted toov that since no abutment is providedv for the plunger 48 this plungerwill effect but little compressing influence upon the depolarizi-ng mass, and' that in the absence of such an abutment the previously compressed material wi-ll beA slightly ejected from the bushing 78 leaving a predetermined quantitfy of the material:` of a given density withinfthe bushing, the excess or protruding portion lbeing thereafter scraped off by means of a sera-per 86 carried by the abutment head 82 and positioned intermediate the plungers 48 andf 49.

The electrode selecting and feeding mechanism 8Oy is supported by a suitable bracket 87 carried by the frame` 9, and comprises a hopper 88 within'the lower portion of which is journaled a star wheel .89- adapted to be operated through the instrumentality of a ratchet wheel 90, and ay pawl 91 adapted to engage and intermittently rotate the same. This pawl is provided with a lug or pin 92 and is Vnormally held in a retractedv position by means of a tension spring 93, the pinY being adapted to be engaged' and lifted through therinstrumentality of a lug or bracket 94 carried by thel compression head 25. As the compressionhead 25 is liftedand lowered the carbon electrodes 95 are successively transferred from the hopper 88 to an into which the-electrode is about to be inserted. After a given electrode has assumed its position directly over thedepolarizing mass a rectifying lever or arm- 97 pivotally connected to a bracket 98 is so movedv under tlie influence of a tension spring 99 as to lift the selected electrode to a vertical' position between a pair of guides 100, the rectifying arm being permitted to move under the influence of the spring 99 when disengaged from an operating cam 101 upon the downward movement of the compression head 25. It will be understood that when the compression head' is `raised the cam 101 cooperating with the recti'fying lever 97 will move the Vsame to its retracted position thus permitting the next succeed-ing electrode to move freely down the shute 96 over the electrode engaging finger 102 carried by the lower' end of the rectifying army 97, the electrode assuming such a position at the lower end of the shute with respect to the ,finger 102 that the' same will be moved to a verticall position intermediate the guides 100 when the rectifying yarm 97 is again moved' under the influence of the tension spring 99.

rlhe conveyor mechanism 8, hereinbefore mentioned, is adapted to transfer a predetermined quantity of the depolarizing material from the hopper or container'7' to the lli) hopper 79 and comprises a pair of sprockets 103 and 104 carried respectively by the frames 6 and 9. r1`he driving sprocket 104 is adapted to receive its poWer of rotation through the instrumentality of a paivl and ratchet mechanism indicated as a Whole by the numeral 105 and clearly shovvn in Figure 11. This mechanism comprises a ratchet Wheel 106 in proXimityto which is journaled an oscillating arm 107 carrying a pavvl 108 adapted to successively engage the elongated segmental teeth 109 of the ratchet Wheel 106. The pawl, upon movement in one direction, is adapted to lift a locking dog 110 from engagement with a segmental tooth 109 and retain the same in its retracted position a sufficient length of time to permit the ratchet Wheel 106, upon reverse movement of the arm 107, to move under the influence of the paivl 108 in an unobstructed manner. Upon completion of the :movement of the pawl 108 subsequent to its lifting the dog 110 out of engagement with the ratchet Wheel 106, the dog 110 is permitted to engage the next succeeding' tooth 109, thereby positively preventing undue movement of the sprockets 103 and 104 as a result of their momentum thus insuring proper registration of the several buckets 111 With the eXit opening 1120i' the container 7, and a proper position of these buckets With respect to the hopper 79.' The oscillating arm 107 carrying la pavvl 108 is operated through the instrumentality of a pitman rod 113 pivotally connected to a bell crank lever 114 suitably journaled to the vframe 9, and operated through the instrumentality of a cam 115 carried by the shaft 40. r1`he several buckets adapted to receive the carbonaceous or depolarizing material from the receptacle 7 are identical and are mounted upon platforms or supports 116 to Which they are pivotally connected by means of ears or Wings 117, the platforms being rigidly connected to a sprocket chain 118 operating upon the sprockets 103 and 104. As the buckets 111 successively register With the exit opening 112 of the receptacle 7, a valve 0r door 119 operating Within guides 120 is opened to permit the passage of a quantity of material from the container into the hopper, after which the valve is closed and somaintained until the nent succeeding bucket brought into registration with the opening 112. The mechanism for effecting the opening and closing of the door or valve 119 comprises a bell crank lever 121 carried by the frame 6 and pivotally connected to a pitman rod 122 which in turn is connected to an operating' arm 123 pivotally connected to the frame 9, the arm 123 being provided with a roller 124 adapted to engage the face of the cam 125 operated by the shaft 42 Which functions to impart to the operating arm 123 an oscillatory movement thus effecting a reciprocatory movement of the valve or door 119. As the buckets 111 are brought successively into registration With the hopper 79 it becomes necessary to move them to the position shown in Figure 5 in order to deposit the depolarizing mass into the hopper, and to effect this movement I have provided a cam 126 provided With a hill and dale face 127 adapted to cooperate with a bell crank 128 pivotally connected to the frame 9 and in turn connected to a second bell crank lever 129 by means of an interposed link 130. The latter named bell crank lever is adapted to successively engage the buckets 111 and since the cam 126 is provided With an irregular face it is obvious that when these buckets are tilted a vibrating movement is imparted to the same. During such movement the bucket is first thrust into engagement with a depending guard 131, carried by the frame 9 and provided With a shield 132 to direct the material into the hopper 79, after which the lhopper rebounds to the bell crank lever 129 and is again thrust into engagement with the guard 131, the vibratory movement being maintained so long as the cam 126 is in engagement with the bell crank lever 128. When operation of the conveyor mechanism is resumed the bucket previously dumped is permitted to fall by its ovvn Weight to its normal position, in which position it is maintained by means of a guide rail 131 over Which the bucketsy are adapted to slide throughout a predetermined phase in the operation of the machine.

In order that the depolarizing material, which is more or less sticky or gummy in its nature, may be shaken loose from the Wall of the hopper 79 1 have provided an agitating mechanism so arranged as to impart to the hopper a vertical vibratory movement. r1`he mechanism for effecting this agitating action comprises a stationary sleeve 133 carried by the frame, the upper edge of Which is serrated as shown at 134. r1`his serrated edge is adapted to engage a plurality of pins 135 carried by a rotatable sleeve 136 Which in turn is connected to the -hopper 79. As the sleeve 136 carrying with it the hopper 79 is rotated, it is obvious that the hopper 79 is agitated by reason of the fact that the pins 135 engage the serrated face 134 of the stationary sleeve. ln order that the hopper 79 may have a suitable bearing surface, 1 have provided a relatively long depending bearing 137 adapted to operate within the stationary sleeve 133. This bearing by reason of its length affords an adequate bearing for the hopper 79 notwithstanding the fact that it is subjected to both rotary and vibratory movement. I

's1`he material when transferred from the hopper 79 enters an elongated bushing 138 which functions to direct the material into the bushings 78 as a result of the action of the plunger 24. When the bushings 7 8 are brought successively `.into registration With the bushing `13S the material, being v:injected thereinto is compressed to-a uniform or substantially'uniform density by the plungert. The means `for eiiecting rotation ofthe hopper 79 comprises-a grooved pulley 140 loosely mounted upon the shaft 42 andconnected to a pulley 141 carried bythe sleeve 136,"the tWo pulleys being connected by means ofa belt -l42and driven through the instrumenA tality of a belt l143 adapted for connection With a line shaft,notshovvn, .to v vhichy the primary belt 13, hereinbe'fore mentioned, is also-adapted to :be connected.

Having thus ydescribed my .j invention I claim: i j 1. A bobbin making machine comprising a rotatable table having depolarizinginaterial receiving pockets, vmeansffor intermittently rotating said table, means lfor depositing depolarizing material into said ,pockets successively, means for subjectingthe material Within, said pockets to. compression to reduce the same ytopa predetermined density, means for .thereafter .removing kall'buta Ipredetermined quantity of the `material `from said pocketsY successively, means vfor succes` sivelyintroducing electrodes into 'said `depolarizing material, means forexertinga final compression influence upon said material whereby the same is intimately `.unitedivith said electrodes, andineans `fortliereaiter successively ejectingthe Vdepolarizing material together with .thefelectrodes from the machine.'f

2. A bobbin making machine comprising av rotatable table havingdepolarizing material receiving pockets,means operated in synchronism Withfsaid table forfntroducing depolarizing material. into-said pockets, means for subjecting the material. Within said pockets to compression to reduce the same tov a predetermined density, fmeans for removing all but apredetermined quai'itityyof said material .from .said pockets in suc-` cession, .means for Vsuccessively introducing electrodes into said material, means for subject-ing said material successively to a inalcompression iniuence, and means for, thereafterejecting said material from itliemachine.

ing a rotatable table having depolarizing in aterial receiving pockets,V means voperating Vin synchronisin .With said table vfor depositing depolarizing material into vsaid vpockets fin successiommeans for subjecting the material f Within said pockets to 'compressionftoreduce the same to a predetermined density, vmeans for reducing the material Within said pockets to Ya predetermined quantity, means for in- .troducing electrodes into Isaid vpockets successively, means for thereafter; subjecting thel material carried Within said'pockets to final compression, andI means for successively j in successsion, means for .reducing the .mafy

ej ectinglthe `material together, Withfthe elec trodes from lthemachine.Y

4.A bobbin making'mach'ine comprising an intermittently actuatedtable havin-g ,dekn Y polarizing `material receiving pockets, means orcompi'essinga quantity oity depolarizing density, means for reducing the compressedv mass of ni'aterialjwithin said pockets toa v predetermined quantity, means for th'ei'e-A .aftersuccessively .introducing :into Vthe ma.-

terial a plurality of electrodes, ,means for exertingra iinal compression influence iipon depolarizing material, .and lmeans for .ejecting the compressed depolarizingmaterial from the machine. i

5. lA bobbin making machine"comprising a` rotatable table havingl depolarizing3ma-y terial .receiving .pockets,.means yLio'r'initiallyl compressing a Vquantity OtdepOlariZing inaterial .into'a relatively compact mass, ineai'is itor introducing va predetermined lportion of said t :compressed lmass* f into said; ,pockets .in

succession, ineansfOr reducing 'the material ivithin said pockets vtofa predetermined` dei`i-. sity, ineanscioi' reducing the inaterialfiv'itliin saidppocketsfto agiven quantity, vrmeans for .introducing'into the fdepol'arizing* nni-f` terial a 4plurality ,of electrodesin succession,

means for subjecting thedepolarizing nia-p` terial. Within said p'ocketsto .a final com-v pression influence, and Vmeansl fori'ina'lly ejecting the compressed material `from the 1 machine.'

` V(XA. bobbin making machine.comprising a rotatable ',table having deplarizinglmaterial .receivingfpocketa means for xinterii'iittently rotating/said table, means forli'ntr'oducing a quantity of depolarizing material intosaid pockets iny succession, means for subjecting the' material vvitliin .said l(pockets Vto. compression to reduce .the same to' al pre4- determined density, a reciprocatory n com! pression h'ead having plungers adaptedreromfthepockets to introduce electrode-'s into t `the depolarizing materialand'tothereafter 3. A .bobbin'making machine compris-Y spectively to .partially project the material 'eject lthe `material together With Vthe elecg sion, a reciprocatory compression .headl adapted to *cooperate with said tableto lre-` duce the depolarizm'g material 'oig eachV pocket toa predetern'iined quantity, to 'ther-el after introduce an electrode into the predetermined-quantity of material and finally eject the material together With the electrode from the machine.

8. A bobbin making machine comprising a rotatable table having depolarizing material receiving pockets, means for initially compressing a quantity of depolarizing material into a relatively compact mass and thereafter introduce portions of the same into said pockets in succession, a reciprocatory compression head adapted to cooperate With said table and reduce the previously introduced-material to predetermined quantities, successively introduce electrodes into the predetermined quantities of material, subject each quantity ofmaterial to a final compression influence and thereafter eject the material together with the electrodes from the machine.

9. A bobbin making machine comprising a table having a plurality of depolarizing material receiving pockets formed therein, a

i hopper adapted to receive depolarizing material, a tamper adapted to cooperate With said hopper for compressing said material into a relatively compact mass and for suc'- cessively introducing said material into said pockets, means for intermittently rotating said table, means for ejecting a portion of the material from said pockets, means for severing the ejected portions thereby reducing said material Vto a. predetermined quantity, means for introducing an electrodeinto said material, means forcompressing the material into Which the electrode has been introduced and means for finally ejecting from the machine the compressed material together With the electrode carried thereby.

10.v A bobbin making machine comprising an intermittently rotatable table having depolarizing material receiving pockets, means for intermittently rotating said table, means tending to retard the rotation of said table, means for locking said table in a fixed position, means for introducing a quantity of depolarizing material into said pockets in succession, means yfor projecting a portion of the material from said pockets, means for severingthe projecting portions thereby reducing saidl material to a predetermined quantity, means for introducing an? electrode into the material, means for compressing thematerial into intimate engagement with the electrode, and means for nally ej ecting the depolarizing mass together with the electrode from the machine.

11. A bobbin making machine comprising an intermittently rotatable table having depolarizing material receiving pockets, an agitating hopper adapted to receive depolarizingmaterial and thereafter'deposit the same into said pockets in succession, means for depositing quantities of depolarizing material into said hopper in succession, and

means for imparting to said hopper rotatable and reciprocatory movement.

12. A bobbin making machine comprising a rotatable table having depolarizing material receiving pockets, a hopper adapted to receive and transfer quantities of depolarizing material to said pockets in succession, means for imparting to said hopper rotatable and reciprocatory movement and means for depositing quantities of depolarizing material into sai'd hopper, the latter named means comprising an endless conveyor mechanism.

13. A bobbin making machine comprising a rotatable table having depolarizing material receiving pockets, a hopper adapted to receive depolarizing material and direct the same'into sai'd pockets in succession, a conveyor mechanism adapted to transfer to said hopper quantities of depolarizing material in succession, said conveyor mechanisin being provided With a plurality of buckets, and means for progressivelyl dumping said buckets and simultaneously impart--` ing theretoV an agitating movement.

14. A bobbin making machine comprising aV rotatable table having depolarizing'material receiving pockets, a hopper adapted lto receive depolarizing material and direct .the same-into said pockets in succession, a

conveyor mechanism adapted to transfer to said hopper quantities Vof d-epolarizing material in succession, said conveyor mechanism being provided With a plurality .of buckets, and means for progressively dumping said buckets and simultaneously imparting thereto an agitating movement,- the latter named means ycomprising a bucket engaging arm and a cam having a serrated face adapted to cooperate Withrsaidfarm to impart thereto oscillatory movement. Y

15. A bobbin making machine comprising a rotatable table having depolarizing material receiving pockets, a hopper adapted to receive depolarizing material and direct the same into said pockets in succession, a conveyor mechanism adaptedy to transfer to said hopper quantities of depolarizing material in succession, said conveyor mechanism being provided with a plurality of buckets, means for progressively dumping said buckets and simultaneously imparting thereto an agitating movement, the latter named means comprising a bucket engaging arm and a cam vhaving a ,serrated face adapted to cooperate with said arm to impart thereto oscillatory movement, and means adapted to cooperate with saidibuckets to direct the material into said hopper.

16. A bobbin making machine comprising a rotatable table having depolarizing material receiving'pockets, a hopper adapted vto i receive quantities of depolarizing material and direct the same into said pockets in succession, a transfer mechanismy adapted to ico las

convey quantities of material to said hopper, said mechanism including a plurality of buckets, means for actuating said mechanism whereby said buckets are. brought successively into dumping position With respect to said hopper, means for so Vmovingsaid bucketsvvhen brought intok dumping position With respect to said hopper as to deposit said material into said hopper, means for intermittently actuating said conveyor mechanism, and means adapted to cooperate with said actuating means for so locking said conveyor mechanism that said'buckets are maintained successively in dumping posi tions with respect to said hopper for a predetermined length of time.

17. A bobbin making machine comprising an intermittently rotatable table having depolarizing material receiving pockets, means for intermittently rotating said table, a-hopper adapted tov direct depolarizing material into said pockets in succession, means for imparting to said hopper an agitating move ment, a yieldable tamper adapted to coopery ate -With said hopper to facilitate the introduction of depolarizing material into said pockets in a relatively compact mass, means for projecting a portion of the mass of material from each of said pockets, means for severing the projecting portion to reduce the material to a predetermined quantity, means for introducing electrodes into said pockets l in succession, means for compressing said material into a compact form around said electrodes, and means'for ejecting the inaterial together With the electrodes from the machine. A

18. A bobbin making machine vcomprising an intermittently rotatable table having depolariziiig material receiving pockets, means for intermittently rotating said table, a hopper adapted to directthe depolarizing material into said pockets in succession, means for imparting to said hopper an agita-ting i movement, a yieldabletamper adapted to cov operate with said hopper to facilitate the introduction of depolarizing material into said iockets in a relatively compact mass, means for projecting a portion of the mass of niaterial from each of said pockets, means for severing the projecting `portion to reduce the material to a predetermined quantity, means for introducing electrodesv into said pockets in succession, means for compress ing saidmaterial into a compact form around said electrodes, means'for ejectiiig the material together with the electrodes from the machine, means for intermittent-ly rot-ating said table, and means for locking saidtable in predetermined positions.-

19. A bobbin making machine comprising a' molding element yhaving depolariziiig iiiaterial receiving pockets, 'means for depositing depolarizing material into ksaid pockets successively, means for subjecting the material Within said pockets to compressionl to reduce the same toa predetermined density, means for thereafter ejecting a Vportion of the material from said pockets in success sion, and means for severing the ejected portion of the material.

20. A bobbin making` machine comprising amolding element having ldepolarizing material receiving pockets, means for depositing depolarizing material into said `pockets successively, means for subjecting the material Within said pockets to compression to` reduce the sameto a predetermined density', means for thereafter ejecting` al portion of the material from said 'pockets successively, means for severing the ejected portions, and means for successively introducing electrodesiiito the material remaining Within said pockets. v 21. A bobbin making machine comprising a molding element havingdepolarizing materia-l receiving pockets, means fordepositing depoarizing material into said pockets successivcly, means forv subjecting the vmaterial within said pockets to compression to reduce Vthe density, means for thereafter ejecting a sameV toV a predetermined portion of theinaterial from said. pockcts successively, means for severing the ejected portions, means for successively introducing electrodes into the material remaining Within said pockets, and means for thereafter successively ejecting the deporlarizing materialtogether yWith the electrodes from the machine. r- 1 1 22.' A bobbin making machine comprising a molding element having depolarizing ina-v terial receiving pockets, means for ydepositing dejgiolarizing material into said pockets' successively, means for subjecting the vmatcrial Within said pockets to compression to reduce the saine to a' predetermined density,

means for thereafter ejecting a portioiig-of the material from said pockets successively, means for severing the ejected portions, means` for successively introducing electrodes into the material remaining Within said pockets, means for exertingfa final compression iniiuence upon the 1 material subsequent-ly to lthe; introduction'ofvgsaid electrodes whereby an intimateunion is effected between eachlelectrode and its depo lariziiig material, and means for thereafter successively ejectiiig the depolarizing material together With the electrodes from the machine. Y y v A In testimony lvvhereof, I have afiixed my signature to this specification.

or'ro j KARL REINHARDVT.

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