US1201674A - Machine for filling shoe-bottoms. - Google Patents

Description

W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTUIVIS.

W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS.

APPLICATION man 1uLvY1o. 1912.

Patented 0cm?, 1916.

' zsHEETs-SHEET 2.

@ven-Lor f @Wfw'vmv- I dit" @u W. n. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS. APPLlcATloN FIL-ED 1uLY1o,|912.

1,201,6M., i Patented oct. 17,1916.

YSHEETS-SHEET 3.

lieven-w74 r Z9 rf/WM W. D. BAKER.

MACHINE FIR FILLING SHOE BOTTOMS.

APPLICATION FILED IuLYI0.19I2.

19201,@74, Pmenfed OCI.. 17,19%.

YSHEETS-SHEET 4.

W. D. BAKER.

MACHINEv FOR FILLING SHOE BOTTOMS.

APPLICATION FILED JULY 10,1912.

1.201,6?4. Patented 001;. 1751916.

TSHEETS-SHEET 5.

W. D. BAKER.

MACHINE FOR FILLING SHOE BQTTOMS.

APPLICATION `r'|LED1uLY1o.19x2.

Patented Oct. 17, 1916.

HEETS--SHEET 6.

M11/ine @66.5"

W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS. APELIcATloN FILE-D JULY I0. 1912.

Patented 001;. 17, 1916.

sHEETs-SHEET 1.

ggg. 17.

War/QA@ UNiTnD STATES PATENT oFFIoE.

WINTHIROP D. BAKSER, OF ABINGTON, MASSACHUSETTS, ASSIGNOR TO BOSTON BLACK- ING COMPANY, 0F EAST CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

MACHINE FOR FILLING SHOE-BOTTOMS.

Specification of- Letters Patent.

`Patented Oct. 17, 1.916.

Application filed July 10, 1912. vSerial No. 708,567.

To all whom t mag/concern:

Be it known that I, WINTHROP D. BAKER,

shoe bottoms and packing the material there- Y in. The filling material usually employed is of a` plastic nature and it is laid in the usual cavity on the outside of the inner sole in order to give they proper solidity to the shoe.

IOne of the objects of this inventionis to provide improved means for keeping the material in proper condition of consistency to be laid in the cavities of outer soles or shoe bottoms.

Another object is to provide improved means for supplying the material or 4forcing itvoutv through a gateway or opening in ribbon-like form and laying it in the cavity.

A further object is to provide means vrfor automatically presenting the shoe bottoms to receive the material and carry them under mechanism for packing and leveling the material. j

` Further objects are to provide improvements which I shall now proceed to describe and claim.

Of the accompanying drawings: Figure 1 is a vertical elevation of the machine, partly broken out orv in section, the roll pressing mechanism being omitted to avoid complexity; Fig. 2 is a perspectiveview of material-supply mechanism; Fig. 7 is a de` tail illustrating the means for adjusting the last jack carrier to properly position the p carrier for different lengths of shoes; Fig.

8 is a detail plan view, partly in section, of the pressing rolls; Fig. l9 is a detail similar to a portion of Fig. 1, but on a larger scale; Fig. 10 represents a section on line 10-10 of Fig. 9; Fig. 11 is a view similar to a portion of Fig. 9, on a larger scale, and partly broken out lor in section; Figs. 12,

13 and 14 are detail views, partly in section,

ofy the .gate mechanism; Fig. 15 is a detail plan vlew of the portion of one of the last jack carriers which acts to open the gate ;4 Figs. 12to 15 inclusive'are on a larger scale; Flg. 16 is a detail elevation of a cam car# rying disk for effecting the gate valve operation; Fig. 17 is an edge view of the same;

.jack carrier, which will be hereinafter preferably referred vto as the spider. Said spider comprises the hub 22 mounted on the shaft 21 and having in this instance four arms 23 (Figs. 1 and 9). The hub 22 is loose on the shaft for a purpose hereinafter described. Fast on the shaft 21 is a ratchet 24 (Fig. 5), and loosely mounted on the shaft adjacent the ratchet is a bell crank 25, one arm of which has pivoted thereto a pawl 26 to cooperate With said ratchet. A spring 27 connects the pawl with the other arm of the bell crank to normally hold the pawl against the ratchet. The bell crank is connected by a rod 28, which is preferably adjustable in length, as indicated in Fig. 1, to a lever 29 (see also Figs. 3 and 4) vpivoted on a shaft ,30 mounted in the frame of the machine.

The lever 29 is provided with a roll which is acted upon by a cam 31 carried by a shaft 32, the latter being connected by bevel gearing 33 (Fig. 1) with a verticalshaft 34 which is driven, through bevel gearing 35, by a shaft 36 mounted on the hopper structure which will hereinafter be described. The shaft 36 is provided with a worm gear 37 which is driven by a worm 38 on shaft 39, the latter being driven by any suitable mechanism, not shown.

A cam 40 '(Fig. 5) loosely mounted on shaft 21 engages a pin 41 of the pawl 26, said cam having an arm 42 connected by a link 43 with a treadle 44 (Figs. l and 4). A spring 45 is connected at one end to the .treadleand has its other end connected to 60 out of engagement with the ratchet segment a suitable fixed pin so as to act to normally hold the treadle in the position shown in Fig. 4. When in raised position the cani 40 acts on the pin 41 to throw t-he pawl 26 away from the ratchet 24 so` that as said pawl oscillates, the ratchet and shaft -21 and its arms may remain stationary. When the treadle is depressed, however', the cam 40 moves to the position shown in Fig. 5, thus releasing the pawl so that its spring 27 will. carry it into position and cause its next oscillation to impart a one-step rotation to the shaftand the arms 23. As hereinafter described the` arms 23 are connected to rotate with the shaft, although the hub 22 is loose on the shaft to enable said hub and the arms 23 to be adjustably connected to the shaft when shoes of different length are' to be treated.Y v

As best shown in Figs. 9 andl 11, each spider arm 23 has a jack arm 46 pivotally connected to it .at 47. The arm 46 is outwardly bowed and at its outer end is formed withv ways 48 (Fig. 10) in which is slidably mounted a block 49. The block 49 is integral with or rigidly connected to a screw 50 which is adapted to move longitudinally of asocketI or recess in the arm 46, said screw having a longitudinal groove or slot 51 which receives a Apin or screw 52to prevent said screw from rotating. By means of a handnut 53 on said screw t-he screw and its block 49 can be adjusted so that the pivot 54 at the outer end of the block may be shifted in a direction substantially radial to the axis of rotation of the. spider. Mounted on the pivot 54 is a block 55 havt ing a pin indicated by dotted lines in Fig.

9, which pin is adapted to enter the shoe last socket, this construction enabling .a last and the partially completed shoe thereon to be quickly removed from'or applied to the, intermittently rotatable jack. The block 55 is provided with an arm 56, pivotally con. nected to which is a plunger 57 entering a socket in the block 49, a spring 58 in said socket acting to press the plunger 57 outwardly and rock the block 55 on its pivot so that the toe of the shoe will be held upon the toe rest pad hereinafter described. Each jack arm 46 has a ratchet segment 59 rigidly connected thereto, said ratchet segment being engaged by a pawl 60y pivoted at 61 to the next arm 23 behind the arm 46 carrying saidsegment. rll`he pawl 60 has a tail piece 62 adapted to engage, a suitably mounted fixed pin 63 (Fig. l) so that as the spider rotates, whenever a tail piece 62 passes the pin 63 the pawl 6() is automatically thrown 59, leaving the arm 46 free tobe pulled backwardly by a spring 64. This action occurs each time that the spider receives its partial rotation and brings a shoe with its cavity filled around to positlon to be redetent 70 has its inner end beveled to engage the ratchet teeth 67, its outer end being connected to'a lever 71 pivoted at 72 and having its inner end adapted to be engaged by a lever 73 pivoted at 74, the other end of said lever 73 being acted upon by a spring 75 mounted inthe arm 23 and having its other end', bearing against the inner end of the slide 66. The spring 75 acts both to press the slide 66 outwardly and to rock the lever 73 s'o that the latter will be held in engagement, with the inner end of lever 71. Said lever 71 is provided with a suitable spring, such as indicated at the upper end thereof in Fig. 11, to normally hold the detent 70 in the position shown in said Fig.

11. The lever 73 is connected by a rod 76 with the jack arm 46 so that whenever the 'jack arm 46 is released by the pawl 60, as

-other one is to take its place, by fitting the socket of the last on the pin of block 55 the toe is pressed down upon the pad 69 until the level of its bottom is substantially fiush with the face of the wedge tip 65. If the toe be thick it will press the slide 66 down farther than if the toe is a low one. As soon as the arm 46 is thrown forward and locked by the pawl 60, the connecting rod 76 115 transmits motion from arm 46 to the lever 73, the latter then releasing lever 7l so that the spring of the latter will cause the detent 70 to move inwardly and rengage the toothed slide 66 'andthus rigidly support 120 said slide and the toe pad 69.

To lock the spider so that the jacks will be properly located at the end of each intermittent forward motion, 4a circular plate or disk 77 (Figs. 3 and 6) is rigidly secured to 125 in Fig. 3, the said lever being mounted on a pivot 82 carried by the frame. The arm 79A carries a lug 83 aclaptedto engage any of the notches 78. Secured to or carried by the disk 77 is a brake hub 84, 'which is engaged by a brake band 85 having one end connected at 86 to the frame 20 and having its other*A 'end connected to the arm 80. A spring 87 connected to the arm 80 acts, when permitted to do so, as hereinafter described, to carry the locking lug 83 into a notch 78 and at the saine` time tighten the brake band upon the, brake hub. The arm 81 carries an adjustable contact screw 88 which is in the path of movementof a lug 89 projecting* from oneof the arms lof the yoke shaped roll frame 90 hereinafter described. In Fig. 3 the roll frame is in its-upper position, and the lug 83 is retracted-and the brake band is'suiiiciently loosened, to permit the spider to be given a one-fourth rotation. But ras soon as the spider has advanced as hereinafter described and the roll frame swings downwardly, the lug 89 leaves the screw 88 so that as soon as the next notch 78 comes opposite the lug 83, the spring 87 will apply the brake and cause the locking lug A83 vto enter the next notch 78. f

Before describing the roll mechanism I will explain the means for adjusting the spider relatively to the shaft 21 so that the l;

'91, the outer end of which carries a springpressed pin 92 adapted to be projected later' ally by its spring to engage any one of a series of holes93 in one of the arms 23. The operator, when the sizes of shoes being treated are changed, can Withdraw the pin 92 and grasp the spider with one hand, ro= tateV or adjust it upon the shaft 21 inone direction or the other to bring a different hole 93 into line with the pin 92, and then release said pin to again lock the spider so that, al though its position has been changed or adjusted on the shaft, it will be rotatedstep byy step by the mechanism shown in Fig. 5 and hereinbefore described.

Referring to Figs. 3, 4 and 6, the roll frame 90 is U-shaped and hasits hubs 94 loosely mounted on shaft 21. One of the hubs 94 has an arm 95 connected by an adjustable connecting rod 96 with a lefverp97 pivoted on the shaft 30, said lever having a roll 98 engaging a cam groove 99 in the side of a disk 100 secured on shaft 32. In order to avoid strain upon these connections due to the weight of the frame 90 and the rolls carri'ed thereby, said frame 90 is preferably counter-balanced as by a spring I01 connected to said frame 90 and to a suitable fixed portion of the machine. A roll carrier 102 is xed to a shaft 103 mounted in frame 90jsaid carrier supporting a'roll 104 mounted on a shaft carried by a swivel frame 105 which is pivoted at 106 to the carrier 102, suitable stops-107` being provided -to--limit the swiveling motion of the said frame 105 relatively to the carrier 102 '(see Fig. 48). The shaft 103 has an arm 108 connected by a spring 109 to a lug 110 of frame 90, said spring, when permitted to do so, causing the shaft 103 and theroll 104 to swing so that the roll will kbear upon the forepart ofthe shoe bottom. Also secured to shaft 103 isa bell crank lever 111, 112 (Fig. 3). The arm l11'has a pin or roll engaginga slot 113 in an arm 114 `pivotally supported at l115` as.

' carry the roll 104 into contact with the shoe bottom. Further movement of the-frame 90 vin the samedirection causes the roll 104 to follow along the contour of the sole-bottom, thevarms 111,112 then riding along the slots 113, 116 until the roll of arm 112 reaches the inner end of slot 116 and is stopped thereby. A little further movement of the frame 90 in the same direction causes the roll 104 to leave the .wol-k, because of the stoppage of arm 112 by the inner end of slot 116, the shaft 103 necessarily rocking and causing the roll 104 to rise' from the work, the parts being so proportioned that this occurs when the roll 104 has just reached the toe end of 4the cavityY to be'filled. On the return or upthe Amaterial backwardly somewhat toward the shank. At the extreme upward movement'iof the frame 90 the'roll of arm 111 reaches the upper end of the slot 113 of arm 114, thus causing the shaft 103 to rock in a direction to raise the roll 104 from the Work; It may be stated here that the operations of the different Iparts of the machine are so timed that the spider and the jacks are nextl given a one-fourth rotation and another piece of work brought to position to be acted upon bythe rolls.

Another roll 118 which is positioned and adapted to act upon the shank portion of thc filled cavity is carried by a swivel frame 119 similar to that which supports the roll 104. Said frame 119 is swiveled to a yoke 120 which. is mounted loosely en .the shaft 103. Lugs 121 ofthe frame 105 of roll 104`bear upon the under side of yoke 120 so that the latter and the roll 118 will follow swinging movements vimparted to the forepart roll 104. In order to cause the roll 118 to bear yieldingly upon the work with more pressure than might result from gravity alone, a spring 123 is mounted between a bar 122 carried by the yoke 120 and a lug 124 projecting from the end of frame 90.

As hereinafter explained the material which is used to fill the cavities is of a nature which would be liable to stick to the rolls if said rolls were not lubricated in some manner. 1 have provided for such lubrication bya small supplyv of water. In Fig. 8 the rolls 104, 118 are shown `as hollow with small perforations in their peripheries, said rolls being mounted upon hollovsT perforated shafts with which flexible pipes 1 25 are connected, said flexible pipes being connecte'd to a suitable water supply pipe 126, the iiow being controlled by a suitable valve 127, such as a needle valve. The rolls 104, 118 are filled with suitable porous material such as felt. rlhe rolls receive no heat from the steam employed. in the machine and they 'may be therefore mentioned as cool. .The water however besides serving to lubricate the surfaces of the rolls as above described serves also to keep the rolls amply cool to prelvent the material from sticking. to the rol s.

1 Will now describe the mechanism for supplying and forcing the lling material, referring especially toFig. 1. Ahopper 128 is suitably mounted upon thetop ofthe main frame 20, said hopper having a steam` jacket 129, which ofcourse is provided with suitable inlet and outlet connections. r1`he cover for said hopper comprises a main section 130 a portion of which is elevated to form a'hood 131. Adoor 132 hinged at 133 and having a suitable catch 134 enablesthe material to be supplied to the hopper as hereinafter described. The hood 131 is provided with a vertical bearing 135 for the shaft 136, which extends down into the hopper and is provided with a spiral rib or forcer 137 Iand with stirrer Iarrns 138. The upper end of the shaft 136 has a bevel pinion 139 meshing with a bevel pinion 140 on shaft 36.' The cover 130 is formed withl a steam space 141 having suitable inlet and outlet. the inner wall of said space supporting hollow arms 142 which are plugged at their outer ends and open at their inner ends to connect with said steam space so that said arms may be kept at the proper temperature. The composition which' is used for the filling is preferablymolded in block form, as shown at a in Fig. 2, said block hav- 1,201 ,eve

ing recesses or holes a to enable the block, or several of them, to be slid upon the horizontal hollow arms 142 when the top 132 is open. 1n practice I preferably provide three of the arms 142 on each side of the bearing 135, so that the two sets of three arms each will support two blocks a, one at each side of tne bearing 135. The heat imparted to the blocks slowly softens or melts the material se that it drips down into the hopper, and isythere kept stirred up by the arms 138 and gradually forced down by the spiral 137 to the bottom of the hopper and through the `throat thereof into the discharge chamber 143, which is provided with a suitable steam jacket 144 and a nozzle 145, the gate mechanism of which will'be described hereinafter. A bearing 146 is provided for a hollow shaft 147, the outer end.

of which is provided with a bevel pinion 148 meshing with a bevel pinion 149 on vertical shaft 34. A sleeve 150 is connected to the keep the material in proper condition for beingforced through the. nozzle, as by means of a small steam pipe 153 formed as a loop and located in the hollow shaft 147. j

When the machine is in operationv and steam at proper pressure supplied, the material will be softened or melted and kept under agitation and forcing pressure from the time it leaves the block a until it is forced out through the nozzle and the gate presently described, the `material passing out in ribbon-like. form and being laid in the cavities of the shoe bottoms as they pass successively under the gate.

1t is to be understood that the steam jackets of Athe hopper and of the discharge chamber and of the nozzle 145 communicate by suitable passages so that all drioor water of condensationy will descend to the lowest point. To permit such water to be drawn off, a suitable outlet is provided at `154 (Fig. 1).

the edges of the sliding gate valves 156, said gate valves being shown in Fig. `12 as acting to' close the outlet while Fig. 1 3 shows them as parted to provide an opening for the ribbon-like strip of compositionmaterial. The sliding valves 156 are provided l Y -of which will' be presently described. A

with downwardly projecting studs or pins 157, which are in the path of motion of movable latches 158, as shown by comparing Figs. 12 and 13. Said latches are provided with abrupt end shoulders 159 and with fingers 160 projecting beyond said shoulders. The latches are pivoted at 161 to radius arms 162, which in turn are pivoted at 163 vthe wedge tip enters between two rolls 168 which are preferably tapered, as shownv in Fig. 14, in order to' relieve pressure on instep portions of the shoe when the latter passesthrough. The rolls 1684 are mountedl on pms 169 projecting downwardly from the inner ends of the latches 15,8. The two rolls are preferably arranged to shift longitudinally upon' theirpins' 169 against the action of springs 170 confined between heads of the pins and internal shoulders of the rolls. The rolls are externally grooved at 171, the object of this construction being to permit the rolls to shift somewhat, against the action of the contained springs, when the shoe is passing between said rolls, to prevent rubbing action on the sides of the shoe.

As shown in Fig. 15, the wedge tip 65 is formed with shoulders 172 on opposite sides thereof, and with inclined or tapered sides 173 at the rear of said shoulders. vPivoted at 175 to this portion ofthe wedge tip are cam strips 174 having toes 176,"the purpose contraction spring 177 connects arms 178 of the cam strips so as to normally. hold the long arms of said cam strips ou'tw ly.

When the shoe is placed in position, as ereinbefore described, its toe portion is pushed j forward to engage the toes .1.7 6 of the cam strips and draw the latter inwardly .underf' the welt. Then as the machine operates and the wedge 65'passes between the rolls 168- and parts the latter, the inclined sides 1731' open the gate valves very slightly or to a preliminary extent as presently described, and the outer edges of the cam strips 174 follow along the grooves 171-of the rolls. The shoulders-172 are sufiiciently abrupt so thatl when they reach the rolls 168 they act to swing the latches 158 from the positions shown in Fig. 12 to the'positions shown in Fig. 13 so as to carry the shoulders 159-t0 positions to engage4 the studs or pins 157 of the gate valves 156. Then further move--` nient of the shoe causes the rolls 168 to be' acted uponl by the inclines 173 and the cam 65 strips 174 sol as'to be further spread apart,

as shown-in Fig. 13, so that the gate valves are opened and permit the composition material, which is under constant forcing pressurev as hereinbefore described, to pass out in ribbon-like form and be laid in the cavity of the shoe, the width .of the ribbon gradually widening and then narrowing so as to shape the ribbon to it the cavity. lVhen the shoe passes through so that the cam strips 174 leavethe rolls 168, the rolls .1.68 then follow along the return tapering sides of the shoes 4so as to gradually release the gate valves. It will be understood of course that during thefurther movement of each shoe it passes under the rolls 104, 118, which, respectively, act chiefly upon the forepart and shank to compact or compress the ribbon of material in the cavity of the shoe bottoml inside of the stitch receiving rib of the sole. 4The composition or material is of such a nature that it is desirable that the gate valves shall be caused to positively close to cut. offthe ribbon, instead of depending upon a spring or springs to close them. The mechanism for doing this includes a cam l disk 179 (Figs. 13,16 and 17), which is se- -screws 1,82. This structure provides for interchangeably securing cam blocks of different forms to accord with different sizes or shapes of shoe, and it also enables said' Y blocks to be reversed or set half way around from the position shown in Fig. 13 for a purpose presently described.- One side of each block 181 is formed with a short cam projection 183 and the other side With a longer and almore gradual cam surface 1.84. With the blocks set as shown in Fig. .13 the long side oredge 184 ,acts upon a roll 185 carried by an arm 186 at the lower'end of a vertical rock-shaft 187 in Fig. 3, said shaft being mounted in `bearings provided in a bracket 188 attached to -the main frame 20. At the upper end of said vertical rock-shaft is an arm 189 which is connected by a link '190 with one arm of an elbow lever-'191.

There is also a Second or companion elbow lever 192, said two elbow levers being pivoted atv 193 to the bracket 164, the two elbow levers being connected by gear segments 194 lto operate simultaneously.

Thefree ends of the elbow levers 191, 192

\ are provided with cam'fingers 195 which are liso v position shown in Fig. 12. Further movement however of the free ends of the elbow levers 191, 192 toward each other, under the impulse of the cam 184 and the connections hereinbefore described will cause the tips 199 of said elbow levers to engage the pins 157 of the gate valves and shift said gate valves from the position shown in Fig. 13 to the position shown in Fig. 12, thus positively cutting olf the ribbon of material issuing from the nozzle. A spring 187a connected to the shaft 187 and to one of the bearings in the bracket 188 acts to turn the vertical rock-shaft 187 in the direction to oscillate the elbow levers 191, 192 (Fig. 13) to the limit -prescribed by suitable stops 200. Springs 197 are connected to the latches 158 and to the link 190 to shift said latches to the position shown in Fig. 12, against stops 198 carried by the radius arms 162, said springs so acting as soon as the latches have been positively started away from engagement with pins 157 by the cam fingers 195 hereinbefore described. The spring' 187aL on vertical rock-shaft 187 is for the purpose of returning the elbow levers 191, 192 to inoperative position after the camy 184 has passed.

The short cam side 183 formed on each block 181 is for the following purpose: Sometimes it is desired to ll only the forepart of the cavity of the shoe bottom. By setting the camblock 181 half way around from the position lshown in Fig. 13, the short cam 183 is brought to position to act in the same manner as has already been described for cam 184, upon the gate valve closing mechanism, the said cam 183 being shaped to abruptly close the gate valves when the shank portion of the cavity reaches the position under the nozzle.

Inasmuch as the composition material em'- ployed is of a lnature which is liable to stick to the gate valves and be carried back into the bearings so as to interfere to some eX- rtent with the sliding of said valves, I provide edge Scrapers 201, as shown in Fig. 12, said Scrapers being made of suitable resilient metal with the inner ends bearing against the edges of the gate valves and their outer ends secured to the mouth of the nozzle by screws v202. By adjusting the screws 202 the' tension or pressure of the scrapers against the gate valves can be adjusted. Scrapers to keep the tops of the slides clear are shown at 203 in Figag, attached to the nozzle tp tension screws 204. The ends of the scrapers201, 203 which are to bear against the gate valves projectl through suitable openings formed in the nozzle tip. It is sometimes desirable to vary the thickness of the ribbon that is being forced through the nozzle between the gate valves whenthe latter are open. For this purpose (see Figs. 1, 14 and 18) l provide a slide 205 mounted in a slot in the front of the nozzle ust above the gate valves 156, and adjust said slide by means of screws 206 so that said slide may be shifted in f or out to reduce the ribbon of material to a thickness less than the space between the front and rear walls of the passageway in said nozzle. The composition material is of a nature which is quite tough, so that if it were placed in the hopper in solid cakes it might stop the operation of the machine. By forming the material in blocks, as shown in Fig. 2, and mounting it on the heated arms 142 in a receptacle which is kept warm, said material is gradually melted or softened so that it sloughs off and drops into the lower portion of the hopper, where it is kept in a heated state and is agitated or stirred and is finally delivered throughan auxiliary chamber having a forcing screw, which is also kept at the necessary temperature to preserve the proper condition of the material for being fed out in ribbon-like form so that it can belaid in the shoe cavity and also be shaped laterally by the opening and closing of the gate valves so as to properly fit the shoe cavity. If desired, I may introduce steam directlyinto the mass of material in the hopper to aid in keeping it in proper condition, as by making the stirrer shaft 136 hollow as indicated by dotted lines in Fig. 1,- and leading the steam pipe 207 down through it, the lower` open end of said steam pilpe delivering steam at the bottom of said s a f Y e operation of the machine is as follows: @ne or more of the blocks a of the composition having been placed in the upper portion of the hopper as described, and steam having been turned on, said material slowly melts and drips into the lower portion ofthe hopper where itis stirred up and kept moving andisgradually forced down through the hopper and through the discharge chamber 143, said material being then held under'pressure against the gates when the latter are closed, and therefore in condition to be instantly forcedout by pressureas soon as an approaching jack and last and shoe thereon causes the gates to v open. rl`he operation of rolling and ressing the filling material into the cavity ov a shoebottom has 'been described. As each lasty with a-y shoe thereon reaches position to fbe removed by the attendant, it is automatically released from-'its supported position, and after another last with a shoe has been placed upon such jack by the attendant, it

1s supported in position relatively to the toe-rest, so that the next mo ement of the spider and j aeks in the operation' of rotation described, carries the shoe to be filled to proper position and causes the gates tobe opened, 'the material to be llledinto the cavity, the gates then closed, ,the shoe then passing under the rolling and pressing rolls. Since the shoes move in a curved path approximately with the curvature of the forepart of a shoe last Where the filling is applied, thefilling is applied and the rolling pressure also applied uniformly, without requiringany flattening out of the shoe last, or any movements of the shoe and filling mechanism relativelytoward and from each other.

1. A machine for filling shoe soles, com prising a hopper 'provided With a delivery nozzle, means for' normally preventing discharge-of filling material from said hopper, means for carrying a shoe past the delivery end of 'said nozzle, and means actuated by said shoe carrying'means for temporarily opening the discharge end of the hopper.

2. A machine for filling shoe soles, comprising a hopperlprovided with a delivery nozzle; means for normally preventing discharge of vfilling material from said hopper, means for carrying a shoe past the delivery end of. said nozzle, 'means actuated by said shoe carrying means for temporarily opening the discharge end of the'hopper, compressing means lyingnormally'out of the path of'inovement of said shoe, and means for moving said compressing means into engagement with the deposited material.

3.- In a machine for filling shoe soles, a receptacle having stirrers, means for supporting a mass of filling material in the upper portion of said receptacle, and means for imparting heat internally to said mass to cause it to drip 'from the support. y

. 4. In a machine for filling shoe soles, a receptacle having stirrers, means 'for' supporting a mass of filling material 1n the 'upper portion of said receptacle, said means comprising substantially horizontal arms to enter recesses in said mass, and means for heating said arms.'

5. A machine for -filling -shoe soes comprising supply mechanism for the fil ing material, means for carrying a shoe past the supply mechanism lto receive a deposit of the material, compressing means lying nor'- mally out ofthe path of movement of the shoe, and means for temporarily bringing said compressing means into engagement with "the shoe to compact the material after .supply mechanism. to receive a deposit of the material, a roll frame, a compressing roll carried thereby, and means for imparting independent movements to vsaid roll" frame and said roll.

- 7 A machine for filling shoe soles, comprising supply mechanism for the-filling ma-' teriaLfmeans for automatically carryinga shoe past said mechanism to receive a deposit of the material, and means for automatically compacting the material after it is deposited, said compacting means comprising a pair of rolls for acting on different portions of the deposited layer.

8. A machine for filling shoe soles, comprising supply mechanism for the lling material, means .for automatically-carrying a shoe past said mechanism in a curved path tov receive a` deposit of the material, and means for automatically compacting the material after it isde'posited, said compacting means comprising a pressing roll having internl means for keeping its surface lubricate 9. In a. machine for filling shoe soles, av

rotatable spider having a plurality of jacks, a pawl and ratchet mechanism for imparting step by step rotation to said jacks, a cam for rendering the paWl and ratchet mechanism inoperative, a treadle-controlling said cam, a-nd -means for Asupplying filling material to shoes carried by said jacks.

10. In a machine for filling shoe soles, a rotatable shaft, jacks attached tosaid shaft, operating mechanism `for imparting step by step movement to said shaft, a cam loosely mounted on said shaft and acting to render said operating mechanism inoperative, means for moving said cam to inoperative position,

' and means for supplying filling. material to shoes carried by said ]acks. 1'

'11. A machine for filling shoe soles, comprising ashaft, a spider having jacks mountedl thereon, -a ratchet disk secured to said shaft, a pawl for actuating said ratchet, means for actuating said pawl, a treadle, and means whereby release of the treadle Will throw the paWl out of operative position.

12. Ina -machine for filling shoe soles, an intermittently rotatable spider having arms provided with toe rests, jacks pivotally con-- nected to said arms, means for locking the jacks in position to hold shoessupported therebyA and by the toe rests, andmeans for releasing the locking means when the jacks reach a predetermined point 'of their rotation. 4

13. In a machine for filling shoe soles, an

intermittently rotatablel spider having armsprovided with toe rests, jacks pivotally connectedo said arms, means for locking the- ]acks in position to hold` shoes supported thereby, said means comprising ratchets con-l nected to the jacks, and locking pawls connectedto the spider arms, said pawls having CIV tail pieces, and an abutment located in the path of movement of said tail pieces to release .the pawls.

14. In a machine for'filling shoe soles, an intermittentl rotatable shoe carrier having a radially adJustable toe rest, ai movable'jack arm for vsupporting the heellportion of a yshoe with its toe portion bearing on said rest, and locking means for said toe rest controlled by movement of said jack arm.

l5. In a machine for filling shoe soles, a shoe carrier comprising an arm having a substantially radial recess, a toe pad having a notched shank yieldingly mounted in said recess, a detent to engage one of the notches of said shank, a jack, and connections between said jack and detent whereby a movement of the jack in one direction will release said detent.

16. In a machine for vfilling shoe soles, a shaft having a plurality of jacks, a disk secured to said shaft, said disk having notches, a brake hub rotatable with said shaft and disk, a brake band for coperating with said hub, a lug adapted to enter any ofl the notches of said disk, and means for simultaneously applying the brakel band and moving said lug into a notch.

17. In a machine for filling shoe soles, a shaft having a plurality of jacks, a disk secured to said shaft, said disk having notches, a brake hub rotatable with said shaft and disk, a brake band for coperating with said hub, a lu adapted to enter any of the notches of' said disk, a-nd means for simultaneously applying the brake band and moving said lug into a notch, said means comprising a three-armedlever, one arm of which carries' said lug, another arm being connected to the brake band to tighten it, a spring for shifting said lever in a direction to operate the lug and brake band, and means for co-acting With the third arm of saidlever to actuate it.

18. A machine for filling shoe soles, comprising an intermittently rotatable series of jacks, means for supplying filling material to shoes carried by said jacks, an oscillating frame carrying a roll for compacting said filling material, and means under the control of said oscillating frame for locking said rotatablel series of jacks.

19. A machine for filling shoe soles, comprising a rotatable shaft, meansfor intermittently rotating said'shaft, a jack loosely mounted on said shaft, means for connecting saidgjack to said shaft to prevent relative rotation, said connecting means being adjustable to vary the position of the jack with respect to said shaft, and means for supplying filling material to a shoe carried by said jack.

20. A machine for filling shoe soles, comprising a shaft, means for intermittently rotating said shaft, an arm rigidly secured to said shaft, a spider mounted on the shaft and having one of its arms provided with a series of holes, means for connecting the rigid arm with any of Said holes, acks carriedv4 by said spider, and means for supplying filling material to shoes carried by the jacks.

\swivel connection 21. A machine for filling shoe soles, comprising a shoe carrier, means for forcibly supplying filling material to the shoe, a roll for compacting the material supplied to said shoe. and means for moving the roll forward and back upon said material to compact it, means being provided for moving said roll away from Contact with the material at each end of said movement.

22. A machine for filling shoe soles comprising a 'shoe carrier, means for supplying filling material to a shoe supported by said carrier, a roll frame, and independently movable rolls carried by said frame and positioned to act respectively upon ythe fore part and shank portions of the filled shoe sole.

23. A machine for filling shoe soles, comprising a shoe carrier, means for supplying filling material to the shoe, a pair of rolls for acting respectively upon the forepartv and shank portions of the filled shoe sole, and means for oscillating said rolls relatively to the shoe sole.

2-L. A machine for filling shoe soles,com prising a carrier for a shoe sole, means for supplying filling material to said sole, an oscillating frame having a roll for compacting the material, and means for counterbalancing the weight of said oscillating frame.

25. A machine for filling shoe soles, comprising a carrier for a shoe sole, means for supplying fillingy material to said sole, and an oscillating frame having a roll for cornpacting the material, said roll having a with said oscillating frame.

26. A machine for filling shoe soles, comprising anvintermittently rotatable series of jacks, means for supplying filling material to shoe soles carried by said jacks, an oscillating frame having a roll for compacting said material, means for intermittently locking the series of jacks, and means whereby said lock is controlled by means of the oscillating frame.

27. A machine for filling shoe soles comprising a receptacle for filling material hav- -ing an opening or nozzle, a lrotatably mounted shoe'carrier positioned to move a shoe past sald nozzle, gate valves for openmg and closing saidl nozzle, and means connected with the shoe carrier for opening l said valves.

28. A machine for filling shoe soles, comprising a receptacle having an opening or nozzle, gate valves for controlling said nozzle, a shoe carrier movablepast said nozzle, latches normally disconnected from said gate valves, and means for voperating the latches by the shoe carrier to connect them with said gate valves. v

29. A machine for fillingshoe soles, comprising a receptacle having an op'ening or if y 1,201,674`

nozzle, gate valves for controlling saidnoz- Y zle, ka shoe carrier movable 'past said nozzle, latches 1normally disconnected .from- 30. A machine for filling shoe soles, comprising a shoe carrier, a receptacle having a delivery opening or nozzle provided with gate valves, and means for opemng the gate valves, said means mcludlng members projecting across the path of movement of the l shoe carrier, the said shoe carrier. having inclined sides to engage said members.

31. A machine for filling shoe soles, comprising a shoe carrier, va receptacle having a delivery opening or nozzle provided With gate valves, means for opening the gate valves, said means including members projecting across the path of movement of the shoe carrier, thev said shoe carrier having inclined sides to engage said members, and pivoted cam strips extending rearwardly from said inclined sides to engage side portions of the shoe. f

32. A machine for filling shoe soles, comprising a receptacle having a delivery outlet or nozzle, a shoe carrier movable past said nozzle, valves for controlling the delivery through said nozzle, and means attached to said carrier and constructed and -arranged to actuate said valves according to the shape of the sole.

33. A machine for filling shoe soles, comprising a receptacle having a delivery outlet lor nozzle, a shoe carrier movable past said nozzle, Valves for controlling the delivery] through said nozzle, means attached to said carrier for opening the valves, and independent means for positively closing said valves, the last mentioned means including a rotatable disk having adjustable cam members.

34. A machine. for filling shoe soles, comprising a shoe carrier, a receptacle having an outlet provided With valves for controlling the delivery of filling material to said shoe, and means Ifor keeping said valves clean.

' 35. A machine for filling shoe soles, comprising a shoe carrier, a receptacle having an outlet provided With valves for controlling thedelivery of filling material to said shoe, and means for keeping said valves clean, said means comprising s crapers to engage the sides of the Valves.

36. Avmachine for filling shoe soles, coml prising a shoe carrier, a receptacle having an outlet provided vWith slide valves for controlling the delivery of filling material to said shoe, and Scrapers mounted in position to contact With the edge and top surfaces of the slide valves. I v

In testimony whereof I have afiixed my signature, in presence of tWo Witnesses.l

WINTHROP D. BAKER.

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