US1713540A - Skiving machine - Google Patents

Description

May 21, 1929.

E. 5. LANE SKIVING MACHINE Filed Sept. 1, 1921 10 Sheets-Sheet l E. E. LANE May 21, 1929.

- SKIVING MACHINE Filed Sept. 1. 1921 -10 Sheets-Sheet 2 E. E. LANE May 21, 1 929.

SKIVING MACHINE Filed Sept. 1, 1921 10 Sheets Sheet 3 E. E. LANE May 21, 1929.

SKIVING MACHINE Filed Sept. 1, 1921 10 Sheets-Sheet 4 May 21; 1929. E. E. LANE SKIVING MACHINE File d Sept. 1, 1921 10 Sheets-Sheet 5 May 21, 1929. E. E. LANE SKIVING MACHINE m V. a 4 H? l0 Sheets-Sheet 6 1 Filed Sept. 1. 192] E. E. LANE 1,713,540 SKIVING MACHINE Filed Sept. 1, 1921 10 Sheets-Sheet 7 May 21 May 21 E. E, LANE SKIVING MACHINE Filed Sept. 1, 1921 10 Sheets-Sheet 8 AMY May 21, 1929.

E. E. LANE SKIVING MACHINE Filed Sept. 1. 1921 l0 Sheets-Sheet 9 E. E. LANE SKIVING MACHINE May 21, 1929.

Filed Sept. 1, 1921 10 Sheets-Sheet 10 Patented May 21, 1929.

UNITED STATES PATENT OFFICE.

ELMER E. LANE, F DANVERS, MASSACHUSETTS, ASSIGNOR 'I O HARRY H. IBECKWITH,

OF BROOKLINE, MASSACHUSETTS. i

SKIVING MACHINE.

Application filed September 1, 1921. Serial No..497,540.

This invention relates to skiving machines, being more particularly designed for machines intended to skive toe box or counter stiffener hlanlzsf This machine employs a recessed matriee roll for engaging and presenting the work to the skiving knife so that the skiving will be elfccted to the extent and at the location desired.

One feature of this invention relates to an improved means for feeding-the blanks and holding them in proper relation to this matrice roll.

A further feature relates to means for adjusting the sl'iving knife.

it often desirable to burnish'the skive'd portion with a heated burnishing tool to compact and improve the structure of the skived edges. For this purpose a heated burnishing roll provided, and cooperating therewith an abutment roll recessed and having a resilient fa e to receive the skived blank and properly present it o the heated roll.

As these blanks are often impregnated. with a stiffening agent which softens and becomes taela'y when heated, this invention further provides mechanism for disengaging the blank from the abutment roll after the ironing operation.

Novel means for feeding the blank through the ironing rolls is also provided.

A, further feature of this invention relates to means for dusting'the blanks with chalk or similar n'iaterial to prevent them from sticking to the machine or to each other after the ironing operation.

Another feature of this invention relates to means for stacking the prepared blanks so that they may be removed from the machine in convenient form to be used as required,

this means providing a novel construction of holder or trough, means for holding the trough in position. and means for stacking the prepared blanks therein.

In order to provide a time interval between the feeding of the blanks suflicicnt to properly stack them, provision is made for speeding up the latter portion of the feed, which causes the blanks to be separated to a greater extent than when they are started. and therefore permits the placing of each blank in its proper position in the stack before the next blank is presented. Mechan sm by whi ch this is effected also forms a part of this invention.

For a. more complete understanding of this invention, together with further objects and advantageous details and combinations of parts, reference may be had to the accompanying drawings illustrating embodiments thereof in which I Figure 1 is a side elevation partly broken away of themachine.

Figure 2- is a detail partly in section of a friction clamp for the stacker; e

Figure 3 is a sectional detail of the lower end of the stacker. I

Figure 4 is a plan artly broken away and partly in section of t 1e machine.

Figure 5 is a side elevation art-l in section of the side opposite to t at s own in Figure 1.

Figure 6 is a plan of the stacker trough.

Figure 7 is ,a sideview of a stop for the upper end of the trough.

Figure 8 is an elevation partly in section and on a larger scale of the portion of the machine shown in Figure 1.

Figures 9 and 10 are detail sectional views illustrating'feed rolls between the skiving and ironingmechanisms, in different positions.

Figure 11 is a longitudinal section through the machine as illustrated in Figure 1. I

Figure 12 is a section upon a large scale through the ironing and abutment rolls,

Figure 13 is a longitudinal section through that portion of the machine illustrated in Figure 8. I

Figure 14 isa diagram of the driving connections for some. of the rolls.

Figure 15 is a longitudinal section through the ironing and abutment rolls and related parts. a

Figure 16 is a detail section on line 16-16 of Figure 15.

Figure 17 Figure 16. v

Figure 18 is an enlarged side elevation of the driven feed mechanism between the skiving knife and ironing rolls.

' Figure-'19 is a section on Figure 4. i

Figure 20 is a section on line 20-20 of Figure 11. t

Figure 21 is a section on line 21,-21 of Figure 20. r

Figure 22 is a fragmentary view similar to a portion of Figure 21 showing the parts in a different position.

Figure 23 is a plan of the trough holding frame. p

is a section on line 17-17 of line 19-19 of Figure 24 is a section on line 24-24 of Figure 23.

Figure 25 is an elevation of a portion of the ironing abutment roll.

Figure 26 is a section on line 2626 of Figure 25. v

Figure 27 is a view partly in section of a feed roll.

Figure 28 is a plan of the skived blank.

Feeding and shining mechanism.

Referring first to Figure 5 at A is indicated a base frame for the machine having upstanding pedestal portions 13 and C for carryingan upper frame work D. Journaled at one slde of the frame D is a shaft 1 carrying thereon a flanged wheel 2 over which passes an endless band skiving knife 3. This knife passes acrossthe machine and over'a similar wheel carried by a shaft at the other side. As shown this shaft carries a spiral gear 4 at one end meshing with a spiral pinion 5 carried by a shaft 6, this shaft being rotated by means of a belt 7 passing over a pulley fixed thereto and over a pulley 8 on a shaft 9 journaled near the base of the machine.

At 10 and 11 are shown a pair of grinding wheels between which the lower edge of the band knife passes, these wheels being driven by belts 12 and 13, the belt 12 being crossed so that these wheels are driven in opposite directions. The belt 13 passes over a pulley 14 journaled on a shaft 15, this shaft being driven by a belt 16 passing over a. pulley on the shaft 6. The upper surface of the band knife passes across a guide block 17 and furnishes the active portion of the knife against which the blanks to be skived are fed, as will be later described.

' This guide block has a sloping lower face against which impinge the ends of substantially horizontal adjusting thumb screws 18 (see Figure 13) threaded through a cross frame member, lock nuts 19 being provided to fix these screws in position. By simultaneous and relative adjustments of these screws the knife may be raised or lowered and tilted as desired. Adjusting screws 18 are preferably provided adjacent opposite ends of the guide block 17.

The feed mechanism may be driven in any suitable manner, but as herein shown is actuated by a cam 20 fixed to a shaft 21 in the frame D; this cam serving to actuate a follower 21 fixed to a rock shaft 22. Also fixed to this rock shaft-is an upwardly extending arm 23 having a slotted upper extremity 24 for engagement with a pin 25 carried in a lug 26 depending from the lower face of a feed slide 27 forming part of the feed mechanism. This feed slide carries a plurality of feed fingers 28 as shown more particularly in Figures 5, 11, and 21 which are adjustable independently thereon by means of slots 29 longitudinally thereof through which passes a V the slides 31.

clamping bolt 30. The forward ends of these fingers are normally given an up and down movement near the limits of traverse of the carriage 27 by means of vertical slides 31 (see Figures 20, 21, 22) carried by thefeed frame and which engage in slots in the fingers 28 by means of a transverse bolt 32. Means for raising the slides comprise horizontally sliding cam members 33 having cam slots 34 therein which engage pins 35 projecting from The slots 34 have their forward portions formed in a horizontal plane lower than the rear portions so that by effecting the relative sliding movement of the members 34 relative to the slide 31, the latter may be raised or lowered. This relative movement may beeffected by a pair of two armed levers 36 as shown in Figure 20 ful crumed on the machine frame which engage at their outer ends at alternate ends of traverse of the feed frame 27 on lugs 37, 38 forming parts of the slides 33.

At 39 and 40 .are shown a pairv of lugs depending centrally of the slide 27 and in line with the inner ends of levers 36. The lug 39 is so positioned as to contact and urge the levers into the position shown in Figure 20 when the feed slide is in its forward position while their outer ends, engaging lugs 37 retract and hold cam bars 33 rearwardly so that pins 35 engage in the lower portions of slots 34 holding the bars 31 in their lowered positions with the ends of fingers 28' depressed.

The lug 40 is spaced from the lug 39 so that on retraction of the slide 27 it will just fail to contact the levers 36 so that they will not be actuated. In order that these levers may be actuated to move slides 33 forwardly to raise the ends of the feed fingers as the feed frame approaches its rearward limit of traverse a movable abutment shown at 41 may be projected between the lugs 39 and 40 in front of the ends of levers 36. This abutment is pivoted to the rear end of a bar 42 slotted at 43, through which slot pass pins 44 carried by an arm 45. This arm 45 is fixed to a rock shaft 46 journaled on the machine frame and carries at its outer end an operating handle 47 (see Figure 1). By raising this handle, shaft 46 is rocked to project the abutment in front of the adjacent ends of levers 36 to be contacted and moved rearwardly by the lug 40, pins 44 sliding in the slots 43, and so rocking levers 36 to project the forward ends of the feed fingers upwardly.

The feed fingers 28 pass in slots 60 in a feed table 61 projecting above the surface thereof when making a feed stroke and lying beneath when retracting, or on both strokes when the handle 47 is depressed. This table 61 forms the base of a receptacle for the blanks, on the rear face of which is formed an upwardly extending plate 62. The forward .face of this "skiving knife.

receptacle is formed by a plate 63 having its lower end spaced sufficiently above the table 61 to permit a blank to be fed thereunder by the fingers 28. The table 61 has a series of depressions between the slots 60 for the reception of the rear ends of presser fingers shown at 64. These presser fingers are positioned transversely of the table 01 and are formed at their forward ends in a series of spaced presser elements 65. The outer faces of the member (Set are formed angular as shown more clearly in Figure 18 and are fixed in position by means of screws 66 seated in slots 67 in the upper face of the member 64 and threaded into the table 61. By this means the fingers may be adjusted lengthwise to prevent the portions 65 in correct position to the matrice roll to be described, and by relative tightening or loosening of the screws 66 in each finger it may be tilted about the apex of its angular lower face to adjust its end vertically. The fingers 65 project toward the face of a recessed matriee roll 70 to hold the blanks to be skived thereagainst. This matrice roll together with a cooperating feed roll 71 feeds the blanks to the edge of the skiving knife 3.

The feed roll 71 is shown in detail. in Figure 27. It comprises a cylindrical sleeve 72 carried by a shaft 73, the member 7 2 having spaced thereon a series of ring members 74, each member having a flange 7 5 at one end having its outer face dished to mate the lower edge of a presser element (35. Between the flanges 75 are positioned a series of washers or ring members 7 6 of rubber or other resilient material which are adapted to engage one face of the blanks, and cooperating with the matrice roll 70, to feed the blanks to the The rings and washers are fixed on the cylindrical sleeve 72 between collars 77 which have diametrical notches 78 therein for the driving connection therewith of driving elements 7 9.

The feed roll 71 is driven in unison with the niatrice roll by means of a pair of intermeshing idler gears 68 meshing respectively with gears 105 and 69 fixed to the matrice and feed rolls. An upper feed roll 710 is mounted in front of the matrice roll to move the work thereto. This roll is journaled in a pair of levers 711 pivoted at 712 to the machine frame and is actuated from a gear 713 carried at the other end of the matrice roll from gear F105 (Figures 1, 8, and 1 1) which meshes through anid'ler gear 714 with a gear 715 carried on one of the lever pivots. Atthe opposite end of this pivot is fixed a gear 710 which meshes through an idler gear 717 iournaled on one of the levers 711 with agear 718 fixed to this feed roll. The opposite ends of levers 711 are urged upwardly until stopped by abutment screws 719, by springs 720.

After the blanks are skived they are passed over a series of rolls 80, 8]., 82 and 83 journaled in the frame of the machine up to a pair of ironing or calendering rolls comprising aheated roll 81 and an abutment roll 85. Cooperating with the journaled rolls 80, 81, 82 and 83 are a series of driven feed rolls 86, 7, 88 and 89. In Figure 14 is shown diagrammatically the arrangement of the gearing for driving these rolls. The roll 87 is driven as shown in Figure 4 by va shaft 90 having at its inner end a tongue 91 engaging in a mating slot in a gear 92 fixed to the roll so as to transmit torque only. This gear 92 meshes with an idler on a shaft 93 which meshes in turn with a gear 94 carried by the roll 86. Gear 92 meshes with an' idler 95 carried by a shaft 96 (see Figure 13), this idler meshing in turn with a gear 97 fixed to a shaft 98 on which the roll 88 is journaled.

The roll 89 is driven by a gear 99 fixed thereto meshing with an idler 100 which meshes in turn witha gear 101 fixed to the ironing roll 85.

The ironing roll 85 is fixed to a'shaft 102 which carries on one end (see Figure 4) a gear 103. This gear 103is connected with an idler 104 engaged by a gear 105 fixed to a shaft carrying the m'atrice roll. The other end of the shaft 102 carries a gear 106 meshing through an idler 107 with a pinion 108 through which passes the shaft 90. These gears are so proportioned that the ironing roll 85 has a greater peripheral speed than the matrice roll 70. The feed roll 88 has the same peripheral speed as the ironing roll, but the feed rolls 86 and 87 have the same peripheral speed as the matrice roll. It will therefore follow that as the blanks are fed from the matrice to the ironing roil their speed is increased so that the spacing of the blanks is increased as they pass to the ironing roll, this action being desirable in connection with the stacking of the blanks as will later be described. In order that this increased speedmay be effected and yet complete feed control of the blanks be retained, the feed roll 88 is mounted so as normally to be driven at the lower rate of feed but is capable of being rotated faster as soon as the blanks are engaged by the feed roll 89.

For this purpose the construction shown in Figures 9 and 10 is provided. As herein shown the roll 88 is loosely journaled on the shaft 98, this shaft having a key 110 projecting therefrom and the roll 88 having a similar key 111 projecting inwardly and in the path of rotation of the key 110. By this means the roll 88 is driven normally by engagement of the key 110 on one side of the key 111, but as soon as the blank is engaged by the feed roll 88 rotating at a faster peripheral speed than the roll 88, the roll 88 is pulled ahead, thus moving the key 111 out of contact with the roll 88 substantially as shown in Figure 10. As soon as the blank has passed bewhile it is normally driven at the lower rate of feed it may be driven at the higher rate by engagement with the work when this work is being fed by the roll 88. Thus it is not necessary to space the two pair of rolls by the exact length of the pieces of work to be passed therethrough as would be the case if the slower rolls were not capable of running beyon their driving means. With the construction shown, blanks of various sizes may be passed through the rolls without adjusting the spacing between the slower and faster rolls provided the blanks are at least long enough to extend from the nip of the first set of rolls to that of the second set. The driven rolls are spring supported from the machine frame as shown in Figures 18 and 19. The roll 86 and the shaft 93 are supported in a pair of brackets 115, each bracket 115 having an upwardly extending socket portion 116 slidable in a perforation 11'?- in a transverse frame member 118. A spring 119 is seated within the socket and bears at one end the bracket 115 and atits other end against a transverse plate 120. A stud 121 is threaded at its upper end in a nut 122 and at its lower end in the bracket 115 passing within the socket 116 and through the plate 120. By turning the nut 122 this stud may be rais .Ll or lowered to adjust the tension on the spring 117 and to determine the downward limit of motion of the bracket 115. A checknut 123 threaded on the upper end of the stud above the nut 122 holds the stud in its adjusted position. Similarly the roll 87 and the shaft 96 are carried by a pair of brackets 12 1, each bracket having an upwardly extended socket 125 slidably mounted in a perfm'ation 126 in the frame portion 118. A stud 127 having a nut 128 at its upper end passes loosely through the plate 120 and within a coil spring 129 and is threaded at its lower end in the bracket 124', a spring 129 being seated in the socket 125. A check nut 130 bears 011 this stud and holds it in adjusted position. Similarly the shaft 98 is mounted in a pair of brackets 131 which are also spring-supported on studs 132 in the same manner as the other rolls.

The roll'89 and the shaft 100' carrying the idler 100 is journaled in a pair of brackets 135, each bracket having an upwardly ext-ending socket-136 which is slidable in a bore in a A stud 138 passes down frame member 137. through a plate 139 and is threaded at its lower end in each bracket, and above the plate 139 the stud 138 carries anut 1 10 and a check nut 141. A spring 1 12 surrounding the stud bears at its lower end against the bracket 135 within the socket 136 and at its upper end on the under side of the plate 139. The

brackets 135 are supported by a separate plate against from the plate 120 to facilitate assembling and disassembling the parts. The plates 120 and 139 as shown in, Figures 4, l8, and 19 are held in position in the main frame of the machine and in turn hold the frame pieces 118 and 137 by means of a pair of clamping plates 1 15 engaging their ends, these plates being made fast to the main frame by nuts 146 threaded on studs fixed to the frame and passing thereto. From this description it is seen that all these driven rolls are spring supported.

The abutment roll 85 is driven from the shaft 6 by any suitable means. As shown in Figure 5 this means comprises a worm gear 150 carried by the shaft 6 meshing with a worm wheel. 151 fixed to an upwardly inclined shaft 152. At its upper end this shaft carries a bevel pinion 153 meshing with a bevel. gear 15llixed to the abutment roll 85. The feed mechanism may also be driven from this inclined shaft 152. For this purpose a pair of meshing gears 155 and 156 fixed respectively to the shaft 152 and a downwardly inclined shaft 156 are shown. The lower end of the shaft 156 carries a bevel gear 157 meshing with a similar gear 158 on the cam shaft 21.

Ironing mcclumz'sm Suitable means is provided for heating the chine frame (Figure This shaft is 1101- low for the reception of electric leading in wires 164: which are attached at their ends to slip rings 165 through which. current may be conducted to the element through the contact brushes 166. The other portion of the roll may be journal ed directly in ball bearings 16? carried by a pivoted bracket similar to bracket 159.

These brackets are both urged upwardly to yieldingly hold the ironing roll toward the abutment roll. as shown in Figure 13, by a spring 168, a stop screw 169 for each bracket determining the limit of approach of these rolls. A pair of intermeshing gears 840 and 850 on the roll shafts cause these rolls to r0- tate in unison.

In order that the ironing may be effected at the proper portion of the counter or box toe blank a construction of abutment roll has been provided by which the ironing pressure may be exerted on the skived portion to a greater extentthan on other portions, it beform a backing along ing especially desired to iron the portion a as shown in Figure 28 which passes Over the top of the shoe. For this purpose a construction of roll illustrated in Figures 12, 15, and 26 has been devised. The roll 85 as therein shown is of reduced diameter fora substantialextent of its periphery at 170 for the reception of a removable section 172. As shown more particularly in Figures 25 an 26 the section 172 comprises a curved plate 173 fitting the recess 1'70 and being cut through at 1'14 to a shape approximating that of a stiffener blank. This cut out portion is tilled with a suitable resilient backing material such as felt as shown at 175 and between one edge of this felt and the margin of the recess 17 1 along the flatter side of the recess is interposed a metallic filling member 176. Filling members of diilerent widths and sizes may be inserted interchangeably in'the recess so that the roll may properly cooperate with various sizes and shapes of it being intended that the plates 17 6 shall the portion a of the blank as shown in Figure 28 so that considerablepressure may be exerted at that point. "lfhe outer face of the plate 173 is covered by a thin resilient sheetmetal member 177 whichv forms a facing for this part of the abutmentrol In operation the blanksare presented between the rolls so that the portion a is engaged by the plate 177 outwardly of the plate 176 while the remaining portions of the blank are allowed to bend the plate 177 inwardly thus imparting a pressure 7 of less extent thereto.

As the blanks, especially for toe boxes, are often impregnated with a material which becomes tackywhen heated, provision is made for disengaging the blanks from the abutment roll. As shown in Figures 12 and 15 this comprises a plunger 180 mounted transvcrsel to the axis of the roll 85 and passing thri *gh the shaft 102 which carries this roll.

lne on d of this plunger bears against a head 181 which projects through the member 177 at certain times and is carried at the free end of a leaf spring 181 fixed to the roll. The shank of. this plunger is guided within mating; bores in a pair of externally threaded elements 182 threaded in a bore 183 in the roll 85, theseelements being locked in posi- 7 tion by screwing against each other'in the manner of lock nuts. Bearing against. the inner element 182 and surrounding the shank of the plunger is a spring 184 which reacts against a shoulder 185 formed on the plunger aiid normally holds it retracted so that its head 181 is within the periphery of the roll. The opposite end of the plunger is formed as a pin 1861i aving a rounded outer end which projects withina bore .18? arranged parallel to the axis of the roll. S'lidably mounted in this bore is a cam follower plunger 188 having an inclined face for engagement with the blanks, I

effectually end of the pin 186. This cam plunger is normally held outwardly out of engagement with the pin 186 by means of a spring 189 seated in an'enla-rged portion of the bore 187 and bearing against a shoulder 190 on the memher 188. This member is held from rotation by means of a pin 191 thereon movable'in a suitable slot in the roll and is retained V in position by means of a pair of threaded elements 192 similar to the elements 182. The outer end of the cam plunger passes through the end of the roll and against a cam late 193 shown in detail in Figures 16 an '17. This cam plate is fixed to a supporting bracket 194 carried by the machine frame, this so bracket having an arcuate slot 195 therein so that the cam 193 may be adjusted circumfercntially of the roll 85 and fixed by a clamping nut 195. This cam plate has a cam incline 196 so positioned as tobe impinged by as the end of the follower member 188 so that the incline 187 thereon ma force the plunger 180 outwardly from the ace of the roll 85. The cam plate is so positionedthat this action takes place as the blank is about to leave the bite between the ironing rolls and serves to disengage the blank from the abutment roll. While a similar mechanism might be applied to the ironing roll, if desired, it has been blanks are not aptto stick to this roll; In order to keep the abutment roll clean it is preferable to provide ascraper as shown at 197 which may be carried by the plate 139, a clamping plate 198 being used to fasten the H10 scraper plate in position thereon.

Coating mechmtism. v

As the blanks-when heated are tacky as above described, it is under certain conditions 0 desirable to coat them with a powder such as chalk, talc, or the like, so that they may not stick to the machine or to each other as the y pass out of the machine. For the purpose of coating these blanks, mechanism comprising a pair of feed belts shown more particularly in Figures 11, 12, and 13 is provided. The lower belt 200 is preferably formed of canvas and the upper belt 201 preferably of rubber. These belts are arranged in an n m5v wardly inclined position, 7 the lower e 5 thereof being adjacent to the bite of the ironing rolls so as to receive the blanks passing therefrom between them. For this purpose the lower belt passes over a roll 202 positioned it adjacent the heated roll (Figure12) and the upper belt passes over a similar roll 203 positioned adjacent the abutment roll 85-.: The lower belt at its upper end passes about a ,7 roll 204 and the upper belt about a. similar M roll 205. V 5 1 The powder with which the blanks are to be coated is preferably supplied to the upper belt, a receptacle for containing this material being'indioated at 206. This found in practice that the 95 i receptacle is' dered material will the blanks end for end to made fast. to a frame'207 which is pivoted to the machine frame on a shaft 20S, whereby the receptacle 206 and the frame 20?, to.- gether with the feedbelts 200 and 201 and other mechanism to be later described, may be'tilted up away from the ironing rolls. They maybe held in this position by passing a bar beneath a portion of the frame 202', this bar resting in a pair of socketed bracket membore 209 carried by the main frame of the machine. This position of the parts is indicated in'dotted lines in Figure 13. This mechanism may be heldin its lowered operating position by meansof a hook 218 (Figure 13) pivoted" to the machine frame and engaging over a pi-n210 lined to the frame 207.. The lower; end of the receptacle 205 is open and communicates directly'to the upper surface of the belt 201. A .roll 210 is positioned thereunder adjacent the forward face of the receptacle to holdthe belt thereagainst. he amount of material deposited on the belt is determined by means of a scraperplate 211 partially closing the lower end of the receptacle and projecting toward the upper face of the belt. lttwill therefore be apparent that as the belts are moved to feed the blanks away'from the ironing rolls thepowbe fed thereto on the surface of the belt 201. 1 The belt 201 may be driven by means of a chain 211 over a sprocket wheei 212 205, beneath an idler sprocket sprocket Wheel 2314 fixed to the shaft 208. This shaft may be driven by means ofa-gear 215 fired thereon meshing through an idler 216 with a gear .217 carried by the shaft 102.

Belt 200 is driven in unison with belt 201 by means of intermeshing gears 204- and 205 fixed to the rolls 204k and 205,'respectively. Means for adjusting the positions and the tensions of these belts are shown in Fig ure 8. comprising turnbuekles 300 and adj nsting bolts 801 and 302. Bolt 301-.is pivotally connected with a bearing for the roll 205 and bolt 302 is surrounded by a spring303 acting against the bearing of the roll 210; A pivoted scraper plate 238 having an inverted ashaped deflector plate fixed thereto bears against the heated roll to remove surplus chalk dropping from the belts thereon,

"c1115 chalkbeing guided out of the machine at opposite. sides by the deflector plate 239.

v Stackingmechanism: The blanks are fed fromthe belts with their more pointed ends vforward. It is desirable in stacking these blanks to gagethem from the flatter edge since I V sharply curved edge varies Within Wide limits. F or this reason provision-is made in this machine for reversing bring them in proper position to be stacked. For this purpose an arrangement of feed rolls at the end of the bite of the belts has been provided'consisting of three rolls 220, 221, and 222 which are positioned in pairs, the center roll 221 cooperating with both rolls 220 and 222. The rolls 220 and 222 are driven by means comprising a sprocket chain passing over sprocket wheels. 224 and 225 fixed to these rolls, beneath an idler. tightening sprocket wheel 226,

and about a sprocket wheel 227 fixed to the shaft 208, as shown in Figures a and 8. This sprocket chain also passes about wheel 228 fixed to one of a pair 229 and 280 positioned beneath the rolls 221 and 222. The roll 220 is driven in the direction to pass the blanks between it and roll 221 with the more, sharply curved edges projecting forwardly. Positioned to receive the blanks thus directed is a battle plate 231 adjustably fixed to a rod 232 carried at the outer end of a pair of pivoted arms 233. This adjustment comprises a forked member 23 1 fixed to the upper edge the ballie and through which the rod 232 passes, a thumb screw 235 being provided for tightening the jaws of the for together to clamp the plate against rotationon-the bar. The bar 232 is carried by apair of sleeves 230 which may be slidably adjusted on the arms 23-3. The member 233 in turn is pivoted at 237 to a bracket fixed to the frame member 207. The feed rolls 220, 221, 222, 229 and 230 are also carried by this same frame portion 207 so as to be movable therewith when the chalk receptacle 206 is swung upwardly. The blanks they pass between the rolls 220 a sprocket of feed rolls 2.51 and then being caught between this roll and the roll 222. These rolls are driven in a direction to pass the blank downwardly therebetween with the flatter edge foremost. The blanks are then fed down by the rolls'220 and 221 and between rolls and 230, stationary guides 2 10 and 241 being provided to guide the blanks between the latter pair of rolls. Passing between the rolls 229 and 230 the blanks drop with their flatter edges downwardly into a trough member This trough member 242 is supported on a frame 24.3 which is shown in detail in Figure 23 and which is fixed by a bracket 248 upper end to the machine frame. end of this frame is supportedfrom the floor on feet 24:3 (Figures 1 and 8). This frame comprises side rails2l4 and 245 having thereon at spaced points saddles 246 for supporting the lower face of the trough.

provide for'holding different'sizes of trough at its The lower 248 therein through which pass guiding and tightening bolts 249 which are threaded into the frame 244. In order that the blanks as deposited in the trough may not fall too far from the. feed rolls 221 and 230 and be liable to become displaced therein, an adjustable base for the trough indicated at is herein shown. This member 250 has thereon a sleeve 251 which is slidably mounted on a guide bar 252 made fast at its upper and lower ends to the support 243; The member 251 has pivoted thereon a lever 253 by the actuation of which the sleeve 251 may be. clamped and unclamped to the bar 252. This lever is in operative engagement with a friction shoe 254 (Figures 2 and which may be pressed into engagement with a flattened side portion 255 formed on the rod This flattened portion is so related to the sleeve thatwhen the sleeve is turned so that the shoe may ride thereon, the upper end of the abutment 250 projects downwardly within the trough and forms a movable base therefor. This frictional mounting of the abutment allows it to be pushed downwardly as the pile of blanks in the trough increases in length, provision being herein made by which this depression of the abutment is automatically effected as the trough fills.

For accomplishing this function a slidable plunger 260 mounted in sliding guides 2'31 in the frame 243 has a portion 262 movable in axial alinement with the trough 242. This member 260.may be pressed downwardly toward the abutment 250 by means of a pair of links and 264 pivoted together at 265, the link 26st being pivoted at 266 to the slide member 260 and the. link 2625 being made fast to a rock shaft 267. As shown more particularly in Figure 1 this rock shaft 267 has an arm 26,8 fixed thereto, the outer end of this arm being pivoted at 269 to a connecting rod 270 leading from a crank pin 271 fixed. to the end of the shaft 208. By this means the rotation of the shaft 208 imparts an upward and downmachine when the trough becomes filled.

ward sliding motion to the member 260, the portion 262 thereof pressing downwardly on the blanks after each one is fed into the trough. As the trough becomes filled the abutment 250 is slid downwardly on the rod 252, the frictional mounting of this member allowing it to be so moved and holding it in position after each movement.

It is desirable to stop the operation of the As the abutment 250 reaches the lower. end of the chute it impinges on the upper end of a curved arm 272 (Fig. 1) fixed to a rock shaft 273 which in turn carries a crank arm 274.. A cable fixed to this crank arm passes upwardly along the side of the chute over an idler pulley 275 and is made fast at its opposite end to the handle i7. By this means when the plunger 250reaches the bottom limit of its travel the handle-47 is turnedto throw the feed mechanism to the skiving rolls out Of operation, 7 it therefore follows that as soon as the trough is filled no more blanks will be fed to the skiving mechanism though the machine may continue to run.

As shown in-Figures G and 7 the lower end of each trough is closed off by means of a wall 276, the upper end of thetrough being left open. In order that a completely filled trough may be handled with greater facility and the loss of counters therefrom prevented, a temporary closure )late for this end of the trough is indicated in igures 6 and 7 at 277. This closure plate has a pair of pins 278 extending therefrom which may pass through perforations in the side walls of the trough. The trough itself is so shaped and the pins are so related thereto that the plate 277 may be pushed into place slightly springing thewalls of the trough outwardly until the pins 278 engage in the perforations whereupon the side walls of the troughcollapse slightly and the member 277 is held resiliently in position. When the troiwhbecomes filled it may be removed bodily from themachineand a plate 27 7 inserted therein. With this construction the, skived blanks may be handled as a unit and may be moved aboutwithout danger of loosing or injuring indiuidual counters.

Having thus described an embodiment of this invention as illustrative thereof it will be evident to those skilled in the. art that many changes and modifications 'might be made without departing from its spirit or scope as defined by the appended claims.

1. In a machine of the class described havin g a recessed matrice roll and a skiving knife, means to present ,work to said roll and coopcrating therewith to feed 7 it to said knife comprising a cylindrical member, a series of rings arranged axially on said member, each of said rings having an outwardly extending flange at one .end, a-series of washers of re-. silient material of larger external. diameter than said flanges positioned and clamped,

thereby inthe spaces therebetween, the outer edges of said washersengagmg the work, and a series of work engaging fingers positioned between said washers and outwardly.

of said flanges for pressing the work into the recess of said matrice roll.

2. In a machine of the class descr bed hav mg a recessed matrice roll and a skiving knife,

means to-presentwork to said roll and operating therewith to feed it to said knife comprising a cylindrical member, a series of rings arranged axially on said member, each of said rings having an outwardly extending flange at one end, a series of washers of resiliont material of larger external diameter than said flanges positioned and clamped thereby in-thc spaces therebetweemt heguter edges of said washers engaging the work, a

series of work engaging fingers positioned between said washers and outwardly of said flanges for pressing the work into the recess of said matrice roll, and means for rotating said cylindrical member, rings, and washers as a unit.

3. In a machine of'the class described, in combination, skiving means for beveling the marginal portion of a blank to a thin edge, andmeans for smoothing and pressing said beveled portion comprising a pair of rolls between which the beveled blank may be passed, one roll having a face with a resilient blank engaging portion.

'4; In a'machine of the class described, in combination, skiving means for beveling the marginal portion of a blank to a thin edge, and means for smoothing and pressing said beveledportion comprising a pair of rolls between which the beveled blank may be passed, one roll having a recess in its face and resilient material filling said recess.

5. In a machine of the class described, a pressing roll having a recessed face, yielding material positioned in a part of said recess, substantially unyielding material removably positioned in another partof said recess, anda flexible cover plate for said recess.

6. In a machine of the class described, a supporting frame, means carried by said frame for compressing and smoothing the work, mechanism carried within said means to free the'work therefrom, and means fixed to said frame for periodically actuating said mechanism.

i 7. In amachine' of the class described, a supportingframe, a pressing roll carried by said frame,'mechanism carried within said roll to free the work therefrom comprising a transverse plunger, and means for periodically actuating said plunger comprising a cam member adjustably fixed to said frame. I ,8. Ina machine of the class described, a pressing roll, a plunger positioned transv'ersely of said roll and normally spring pressed to lie wholly therein, means for rotating said roll, a cam fixed adjacent the end of said roll, and a follower for said cam movable lengthwise of said roll and opera 'tively related to said" plunger, whereby one end of said plunger is periodically projected outwardly of the face of said roll.

9. In a machine of the class described, means for heating articles which become sticky when heated, means for conveying the articles from said heating means, and means ,forcoating said conveylng means with a powder to coat said articles and prevent them from sticking.

I '10. In a machine of the class described, a skiving means, means to feed blanks to said skiving means in one position, a trough, and means for reversing the skived blanks end for end and depositing them in said trough.

11'. In afmachine of the class described having means for skiving blanks andmeans for ironing the skived blanks, means-for feeding the blanks from said skiving to said ironing means, and means acting betweenthe skiving means and ironin means to alter the spacing between successive blanks.

12 In a machine of the class described having means for skiving blanks and means for ironing the skived blanks, means for feeding the blanks from said skiving to said ironing means, and means acting between the skiving means" an d the ironing means. to increase the spacing between successive blanks.

13. In a machine of the class described a pair of feed mechanisms for feeding work successively at different speeds, and means forming a part of the lower speed mechanism for permitting the higher speed mechanism to draw the work therethrough at the higher speed.

14. In a machine of the class described a plurality of pairs of feed rolls, means for driving said pairs of rolls, one of said pairs being driven at a higher speed than the other of said pairs, and a-lost motion connection interposed in the drive of the next adjacent pair of low speed rolls to said high speed rolls to permit work to be fed therethrough at greater than th driving speed thereof when it becomes engaged by said high speed rolls.

15. In a machine of the class described, a plurality of spaced pairs of feed rolls for successive engagement with the work, means for driving said pairs of rolls at different peripheral speeds, an intermediate pair of rolls, a drive shaft on which one of said intermediate rolls is journaled, a key on said drive shaft, and a key on said roll positioned to be contactedby said shaft key to form a lost motion driving connection therewith, and means to rotate said shaft to normally drive said roll at theperipheral speed of said slower pair of feed rolls. V 16. In a machine of the. class described, a frame, three rollers journaled in said frame, three shafts supported from said frame, rollers fixed to two of said shafts and cooperating with two of said j onrnaled rolls to form pairs of feed rolls, an intermediate roll having a lost motion connection with the third shaft and located between said fined rolls in cooperative relation to the third jonrnaled roll, means for driving two of said shafts to drive one of said fixed rolls and said intermediate roll in unison at a lower feed speed, and means to drive the other of said shafts with its fixed roll at a higher feed speed. r

17. In amachine of the class described, a frame, a plurality of rolls journaled in said frame, shafts spring-supported from said frame, rolls fixed to'said shaftsand cooperating with said journaled rolls to form pairs of feed rolls, bearing between said shafts, and means transmitting torque only for rotating one of said roll shafts.

18. In a machine of the class described, a pair of feed r0l1s,-a knife having an operative portion arranged adjacent the bite of said rolls, a supporting block for said knife, and adjusting screws engaging a face of said block for adjusting independently the height'and inclination of said block.

19. In a machine of the class described, an endless band skiving knife, a block for supporting the operative portion of said knife having an inclined lower face, and pairs of screws engaging said inclined lower face for l porting the operative portion of said knife 20 having an inclined lower face, and pairs of substantially horizontal screws engaging said inclined lower face for adjusting the height and inclination of the operative portion of said knife.

In testimony whereof I have aflixed my signature.

ELMER E. LANE.

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