US456225A - Lasting-machine - Google Patents

Lasting-machine Download PDF

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Publication number
US456225A
US456225A US456225DA US456225A US 456225 A US456225 A US 456225A US 456225D A US456225D A US 456225DA US 456225 A US456225 A US 456225A
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rod
arm
lasting
lever
cam
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/02—Lasting machines with one single lasting gripper

Definitions

  • This lasting-machine belongs to that class in which the last is held in the hands of the operator and guided and fed by the machine.
  • Figure 1 is a front elevation of the head of the machine.
  • Fig. 2 is a rear elevation of the head.
  • Fig. 3 is a side elevation of the head.
  • Fig. 4 is a vertical longitudinal section of the head at 4 4,
  • Fig. 5 is an elevation of the head from the opposite side to that seen in Fig. 3.
  • Fig. 6 is a plan or top view of the head.
  • Figs. 7 and 8 are detail top views showing the crimper in different positions.
  • Figs. 9 and 10 are detail side elevations showing parts of the crimper mechanism.
  • Fig. 11 is a detail vertical transverse section at ll 11, Fig. 8.
  • Fig. 11 is a detail vertical transverse section at ll 11, Fig. 8. Fig.
  • Fig. 2 is atop View of the pincher-rod.
  • Fig. 13 is a detail perspective view of the feed-regulator.
  • Fig. 14 is a detail perspective view of the front part of the connecting-rod of the feed mechanism.
  • Figs. 15 and 16 are detail side elevations showing the sliding frame respectively in its forward and backward positions.
  • Fig. 17 is an elevation of the cam for moving the sliding frame.
  • Fig. 1-8 is a side view of the pincher-lifting cam.
  • Fig. 15) is a side view of the pincher-closing cam.
  • Figs. 20 and 21 are enlarged detail vertical sections of the machine at 20 21, Fig. 5, the carriage or sliding frame being in its rear position in Fig. 20 and forward position in Fig. 21.
  • Fig. 22 is a detail section showing the connection of the tack-driver set to the tack-driver bar.
  • Fig. 23 is a detail transverse vertical section of part of the guide mechanism at 23 23
  • Fig. 24 is a vertical longitudinal section at 24
  • Fig. 25 is a transverse vertical section at 25
  • Fig. 26 is a perspective view of the guide-bar.
  • Figs. 27 and 28 are vertical sections at 27 28, Fig. 29.
  • Fig. 29 is a horizontal section at 29 29, Fig. 27.
  • Fig. 30 is a horizontal section at 30 30, Fig.
  • Fig. 31 is an elevation of the pincher-jaws and bearings of same.
  • Fig. 32 is an eleva tion of the pincher-jaws in closed condition. 55
  • Figs. 33,34, 35, and 36 are perspective views showing the guide and feed point in various positions.
  • Figs. 37 and 38 are top views showingthe presser-foot in different positions.
  • Fig. 39 is a perspective View of the presser-foot and its bearings.
  • Fig. 40 is a perspective view of the sliding frame.
  • Fig. 41 is a per spective view of the folder.
  • Fig. 42 is aperspective view of part of the pusher-head.
  • Fig. 43 is a perspective view of one of the sliding pusher-bars.
  • Fig. 44 is a side view of the pusher-head.
  • Fig. 45 isa side view of the pusher-head with one side plate removed and with parts in section.
  • Figs. 46 and 47 are transverse sections of the pusher-head at 46 47, Fig. 44.
  • Fig. 48 is a front view of a tack box with tack-race in transverse section.
  • Fig. 53 is a perspective view of the 'taek-carrier shown from the rear.
  • Fig 54 is a perspective view of the tack-switch in two disconnected parts.
  • Fig. 55 is a perspective View of the base-block of the tack-carrier.
  • Fig. 56 is a perspective view of the safety-switch attach ment.
  • Fig. 57 is a perspective view of the connecting-rod of the switch.
  • Fig. 58 is a perspective view of the switch-connectionrod pins.
  • Fig. 59 is a detail perspective view of a portion of the tack-carrier, and
  • Fig. 60 is a perspective view of the same in detached parts.
  • Fig. 61 is a detail perspective view of a tack-discharger.
  • Figs. (32 and 63 are perspective views of the tack-deliverer seen, re-
  • Fig. 72 isatransverse vertical section at 72 '72, Fig. 67.
  • Fig. '73 is an enlarged detail section of the sliding tubular red by which the tackswitch is actuated, the section being at 73 73, Fig. 72.
  • Figs. 74; and 75 are detail horizontal sections showing the tack-discharger in different positions.
  • Fig. '76 is a cross-section of a tack-raceway.
  • Fig. '7 7 is a perspective view of the upper of a shoe upon thelast ready for the operation of the machine.
  • Fig. 78 is a perspective view showing the lasting process of the machine partly completed, and
  • Fig. 70 is a perspective view showing the lasting process completed.
  • Fig. S0 is a detail vertical section showing the pinchers drawing up the edge of the leather.
  • Fig. S1 is a detail vertical section showing the tack-driver.
  • Fig. S2 is a side elevation of the machine with most of the details of the head left out.
  • Fig. S3 is a rear elevation of the stand-frame.
  • Fig. 84 is a vertical longitudinal section at St 84, Fig. 83.
  • Fig. 85 is a horizontal section at 85 85, Fig. 83.
  • Fig. 8G is an enlarged detail vertical longitudinal section at 86 80, Fig. 83.
  • Fig. S7 is an enlarged detail at 87 87, Fig. 88.
  • Fig. 88 is a cross-section at 88 88, Fig. 87.
  • Fig. 80 is a detail vertical longitudinal section at 8!) 80, Fig. 85.
  • Fig. 90 is a detail side elevation showing the brake.
  • a stand-frame which may be of any suitable construction and material, and whose top 102 serves to supportthe head of the machine.
  • the shaft 103 is a counter-shaft fitted in bearings 1.0 on the stand-frame.
  • the shaft 103 carries a balance-wheel 105 and a belt-pulley 106.
  • Upon the shaft is a fixed collar 107, which forms one member of a friction-clutch.
  • 108 is a cone-pulley turning loose upon the shaft 103 and restrained from endwise movement on the shaft.
  • the hub 100 of this pulley forms another member of the frictionclutch, the other member being formed by a friction-wheel 110, which is V-formed at the periphery to fit the beveled ends of the collar 107 and the hub 100.
  • the construction is such that when the wheel is moved toward the shaft 103 motion is communicated from the shaft 103 to the pulley 108 by means of the clutch.
  • the wheel 110 has bearing in the forked end 111 of an arm 112, hinged to the frame at 113, so that by a slight swing of the arm on its pivot or hinge 113 the wheel may be moved into orout of contaetwith the other members 107 and 100 of the clutch.
  • the central part of the arm 112 has ear or cars 11%, to which is hinged one end of a connecting-rod 115, whose other end is hinged to the central part of an arm or lever 116, fulcrumed to the frame at its lower end 117 and carrying at its upper end 118 an anti-friction wheel.
  • fulcrumshaft 120 near the top of the stand-frame and having at the lower end a forward extension or foot 121, whose lower edge 122 is in the are of a circle whose center is at the fulcrumpoint 120 of the lever 1.10.
  • the construction is such that when the lower end of the lever 110 is moved backward from its normal position the edge 122 bears on the anti-friction wheel at 118 and forces the lever 116 backward, so that the elutch'wheel 11.0 is pushed against the other members of the clutch and the cone-pulley and shaft 103 caused to rotate.
  • the lever 110 may now be swun farther back Without changing its hearing upon the anti-friction wheel at 118, so that the machine will continue running in all positions of the lever 119 except its normal. position. (Shown in Figs. "2 and 81.)
  • the lever 110 is also used to regulate the power of the spring by which the crim pin g-pinehers are drawn upward, and the operation of the lever for this purpose will now be described.
  • 123 is a connecting-rod, one end of which is hinged to the lever 119 and the other end hinged to the verticalarm 124 of a bell-crank lever, whose horizontal arm 125 is forked at the end 120.
  • Through the fork extends from abovethe rod 127 of the lifting-spring 128, whose upper end is connected to the rear end of the lever 120, by which the crimping-pinchcrs are drawn up.
  • 1350 is a collar upon the rod 127, held in place by a set-screw 131 and having at top ribs 132, which occupy notches in the under side of the fork 126, the construction being such that as the lever 110 is moved backward the forked end 12Gis depressed andincreases the tension of the spring 128.
  • ratchet-bar immediately below the edge 122
  • 134 is a pawl hinged to the tread1e-foot 121 and adapted to engage the ratchet-bar and hold the lever 110 from forward movement.
  • the pawl is depressed by the foot of the operator, and when engaged with the ratchet is held in engagement by friction.
  • the lever 11.0 On a slight backward movement being given to the lever 11.0 the pawl is thrown up by a spring 155 beneath it, and then the lever may be swung forward by the spring 128.
  • the horizontal arm 125 of the bell-crank is hinged to the rod ofa piston 137, the piston working in an openbottomed cylinder 138, hinged at 130 to the standframe.
  • the cylinder has at its upper end a small vent-hole 140, that is scre ⁇ vthreaded, and a channel 111 is cut through the thread at one side.
  • 1112 is a screw fitting in the hole 1 10 and made flat at one side, as seen at 1
  • the construction is such that when the fiat part 1 13 of the screw exactly coincides with the channel the air passes freelythrough the channel, and by turning the screw the channel may be partly or wholly closed.
  • the treadle-foot rocks on a pin 115, which also forms the pivot of a treadle-arm 1 10, to whose free end the 108 on shaft 103.
  • treadle-rod 147 is hinged.
  • the arm 146 has a vertical longitudinal slot 148, through which passes a downward extension 149 at the rear part of the treadle-foot, and is held by a screwbolt 150, that passes through the arm and with the base 152.
  • the shaft 154 is a shaft carrying a cone-pulley 155, connected by a belt 156 with the cone-pulley
  • the shaft 154 has bearings at 157.
  • the spu r-pinion 158 is a spur-pinion upon the shaft 154.
  • the spu r-pinion 158 engages a spur-wheel 159 upon the cam-shaft 160.
  • the shaft 160 has bearings at 161 in the fixed frame 153.
  • the shaft 160 carries a balance-wheel 162, which is adapted to be used as a hand-wheel in adjusting the mechanism to any desired position when it is not running.
  • 163 is a longitudinally-sliding frame or carriage having faces 164, bearing against parts 165 of the fixed frame, and bearing-strips 166, which are inserted over the carriage. (See Figs. 2, 4, and 40.)
  • 167 are extensions from the rear part of the carriage, which have inwardly projecting studs 168, carrying anti-friction rollers 169 that work in the cam-channels 170 of the cams 171 and 171 upon the shaft 160. These cams rotate in the direction indicated by the arrow and cause the longitudinal reciprocation of 180, carrying anti-friction rollers.
  • the 172 is the pincher rod or stem, to which the jaws 173 and 174 are pivoted at 175.
  • the rod 172 carries a sleeve 176, which has endwise movement on the rod.
  • the sleeve has extensions 17 7 lying each side of the jaws and connected by three cross-pins 178, 179, and
  • the construction of the parts is such that when the sleeve 176 moves downward on the rod 172 the pins 178 and 180, by pressure against the outer sides of the jaws, press their points together to hold the edge of the leather while the pinchers are raised to draw up the leather on the last.
  • the sleeve is drawn upward on the rod, when the points of the jaws 173 and 174 are separated by the upward movement of the sleeve on the rod, which relieves the jaws from the pressure of the pins 178 and 180, and the jaws are opened by the pressure of the pin 179 against their inner sides.
  • the jaws are shown in their open and closed positions in. Figs. 27 and 28, respectively.
  • the points of the jaws are serrated to give them a firm hold of the leather.
  • the rod has two fixed collars 18]., between which is aloose ring 182, having at opposite sides transversely-projecting studs 183, which have bearing in blocks 184. These blocks have bearing in slots 186 in the forked end 1850f the lever 129, the blocks having slight endwise movement in the slots, as the rod has rectilinear movement,
  • the lever 129 is f ulcrumed in the carriage at 187.
  • the upward movement of the forward end of the lever 129 and the pinchers in drawing up the leather is caused by the spring 128, while the downward movement ofthe pinchers is caused by the cam 171, the lever having a cam-stud 188, armed with an anti-friction roller, which plays in the camchannel 189.
  • the spring In order to allow the spring to act to draw up the pinchers, there is a recess 190 at the side of the channel 189,into which the cam-stud enters. (See Fig.
  • the jaws of the pinchers are open when they descend, the edge 191 of the leather being between them, and immediately after reaching their lower position the sleeve 17 6 descends and closes them upon the leather.
  • the sleeve 176 carries a fixed collar 192,having a circumfer ential channel containing a ring 193, with and the end of the lever moves in an arc of studs 194, working in blocks 195, that have endwise movement in slots 197 in the forked end 196 of the lever 198.
  • This lever is fulcrumed to the carriage at 199, and its rear end is connected to the lever129byaspiral spring 200.
  • the spring acts to depress the sleeve 176 whenever the sleeve is not lifted by either its special cam 204 or by the pincher-rod.
  • the collar 192 bears at bottom upon a shoulder 201 of the sleeve and is held at top by a nut and washer 202.
  • ver 1.98 has a cam-stud 203, carrying an antifriction roller, which bears against the cam 204 of the cam-wheel171.
  • the cam has a part between the salient points205 and 206 which allows the ascent of the stud 203, under the influence of the spring 200, to carry down the sleeve and close the jaws, as before set forth.
  • the rod 172 is drawn up by spring 128 and lifts the sleeve 176 with it until the jaws have reached their highest point, when the stud 188 reaches the end of the channel enlargement 190, and the rod 172 is held rigid.
  • the projecting'part 206 of the cam 204 reaches the stud 203 and lifts the sleeve, opening the jaws and releasing the leather 191.
  • the rod and sleeve again extend together in the same relativeposition until the jaws reach their lowest point, when the sleeve again descends on the rod and closes the jaws, as before described.
  • folder 207 begins to move forward and folds the edge of the leather down on the insole 208, the pinchers opening while the folder moving forward. At the sametime the spring pusher-feet are pressed against the leather and insure its smooth folding against the side of the last. The jaws open while the folder is moving forward, and the folder continues its forward movement and folds down the edge of the leather. The carriage continues to move forward, and the tack driven through the leather and insole.
  • the sleeve 176 has bearing in the forward extension 209 of the carriage, and the rod or spindle 172 has bearing in the sleeve and above the sleevein the extension 210 of the carriage
  • the top of the rod 172 carries a head 211, by which the rod is turned, when required, for the crimp ing of the leather.
  • the folding and pressing devices are upon a single head 212, supported on a rod 213, which has bearing in a longitudinal socket 211 in a downward extension 215 of the carriage.
  • the rear end 216 of the socket is closed except for a hole of smaller diameter than the socket, through which passes a reduced part 217 of the rod.
  • This reduced part 217 is screw-threaded and carries a stop-nut 218 and a lock-nut 219, the former of which limits the forward movementof the rod in the socket.
  • the 220 is aspiral spring surrounding the part 217 within the socket, and whose rear end bears against the rear end 216 of the socket, while the front end bears against the shoulder 221 of the rod.
  • the spring acts to push the head 212 forward.
  • a still further reduced part 222 At the rearof the reduced part 217 is a still further reduced part 222, that passes through a post 223, fixed to the base 152. Behind the post 223 the rod is screw-threaded and carries a stop-nut 221 and a lock-nut 225, the former limiting the forward movement of the head 212 relatively to the fixed frame, so that it does not accompany the carriage in its extreme forward movement.
  • the folder 207 constitutes the front end of the horizontal arm of a bell-crank 226, which is fulcrumed to the pusher-head at 227.
  • the vertical arm 228 of the bell-crank rests at its front side against a sliding block 220, bearing against the rear end of a spiral spring 230, whose front end rests against an adjustingscrew 231, by which the power of the spring may be governed.
  • the head 212 has anumber ofholes 233 to receive fixed pins 231, which are surrounded by spiral springs 235. It
  • the presser-bars 235 are in a vertical series and are made rectangular in transverse section, so as to fit snugly together.
  • the presser-bars have sockets 236 to receive the front ends of the pins and the spiral springs surrounding the pins. The fore ends of the spiral springs rest against the inner ends of the sockets 236 and their rear ends against the head 212.
  • the presser-bars have.
  • the lower part of the head has a fixed extension 211, which is bored through at 215, the bore extending through the body of the head and receiving the screws 231. 232, the block 22.), and the spring 230.
  • the retracted position of the pusher-bars, with the catch in holding position, is shown in Figs. 15 and 17.
  • the treadle 111 has an upper position at the toe, as shown by dotted lines at 216, Fig. 82, a middle position, (shown in full lines at 217in the same figure) and a lower position, (shown by dotted lines at 218 in the same figure.)
  • the crimping takes place only when the treadle is in the lower position, and this is done by turning the pinchers while they hold the leather.
  • the trcadlerod 117 is connected at the upper end to a crank-arm 216 upon a rock-shaft 216, having upon it a worm-cam 250.
  • This cam has a wrist-pin 251, that occupies a slot 252 in the lower end of a connecting-rod 253, connected at the upper end to a lever 251, working on a fulcrum 255 upon the fixed frame 153.
  • the lever is held in its normal and horizontal position (seen in Fig. 3) by a spring 256, extending from its free end to the fixed frame.
  • a pin 257 that works in a vertical socket 258. The top of the pin extends above the top of the frame.
  • 252 is an arm pivoted to the frame at 260, so as to swing in a horizontal plane, and. drawn toward the head 211 of the pincher-rod by a spring 262, connected to the arm and to apin 261 on the fixed frame.
  • This arm carries at the free end a standing bevel-ended pin 263, which, as the lever swings to the head 261, passes beneath the inclined part or tooth 261 of a spring-latch 265.
  • the latch is pivoted to the head at 266 and is depressed by a spring 267.
  • Fig. 82 is shown by dotted lines a spiral spring engaging a collar 273 on the rod 147 so as to lift the rod and throw the treadle 144, into the position shown at 246, which causes the parts to take position for lasting the side of the shoe.
  • 276 is a screw-rod turned by a head 277 and carrying a collar 278 and a nut 279.
  • the hot has a
  • the stud 280 projects through a longitudinal slot 281 in the side of thesockct 282 and engages the worm of the cam 250, as already stated.
  • the guide 274 is rigidly attached to the collar278 and-extends downward through a longitudiin a circumferential groove 285 of the screwrod.
  • Thegnide 274 is adjusted as to its mean position (to and from the body of the machine) by the turning of the screw 276 in the collar or nut 273, while the described inward and outward movement of the guide as the work progresses is caused by the worm-cam 250.
  • the treadle 144 and worm-cam 250 are shown in the intermediate position, or position for lasting the heel, the guide 274 being also in the intermediate position. If new the treadle 144 be moved into the position indicated by broken lines at 248, the worm-cam will take the position shown in Fig 10, and the guide 274 will be then in the inner position, as required in lasting the toe.
  • the worm-cam will be turned in the opposite direction-to that indicated by the arrow in Fig. 9, and no motion will be given to the rod 253, as the wrist-pin 251 will only move the length of the slot 252.
  • the guide 274 will, however, be moved outward by the rotary motion of the worm-cam 250 and take the position required in lasting the sides of the shoe.
  • the rock-shaft 249 carries at its fore end a cam having projections 286 and 288 and a depression 287 between them.
  • the rock-shaft 249 carries at its fore end a cam having projections 286 and 288 and a depression 287 between them.
  • an antifriction roller 289 at the end of a sliding rod 290 transverse to the machine and connected at the opposite end to a hanging arm 291, having a catch 292, which is inclined at the lower side and horizontal at the upper side to engage a projection 298 on the lever 198, so that when the roller 289 is in the depression 287 the catch 292 is in position to arrest the descent of the lever, and consequently of the sleeve 176, so that'the pinchers do not close.
  • the catch 292 is held out of the course of the projection 293, and the piuchers close upon the leather 191 at each descent.
  • the inner 0 position of the arm is shown by the broken lines in Fig. 20. 294 is a draw-spring tending to draw it into this position, and doing so whenever it is not held in'its inactive position

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

(No Model.)
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I I I C. SINNING.
LASTING MAGHINE.
THE norms PETERS cm, P 0m-umu., WAsmuflYON, m c.
15 Sheets-Sheet 1.
(NoModeL) 15 Sheets-Sheet 2.
C. SINNING.
LASTING MAGHINE.
No. 456,225 Patented July 21,1891.
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C. S INNING. LASTING MACHINE.
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(N0 Model 15 Sheets-Sheet 4.
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No. 456,226. I Patented July 21,1891.
THE NORRIS PEYERS cu., mcvouwcn, msnmemu, u. c.
(NoModeL) 15 Sheets -Sheet 5.-
G. SINNING; LASTING MACHINE.
No. 456,225. I Patented July 21,1891.
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15 Sheets-Sheet 6.
(No Model.)
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LASTING MACHINE.
Patented July 21,1891.
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(No Model.)" 15 Sheets-Sheet 7.
0. SINNING.
LASTING MACHINE.
456,225 Patented July 21, 1891'.
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(Nb Model.) 15 Sheets-Sheet a.
USINNING'. LASTING MACHINE.
No. 456,225. Patented July 21,1891.
(No Model.) 15 SheetsSheet 9.
O. SINNING.
LASTING MACHINE.
No. 456,225. Patented July 21,1891.
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(No Model.) 15 SheetsSheet 10,
O. SINNING.
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No. 456,225. Patented July 21, 1891.
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(No Model.) 15 Sheets-Sheet 11.
0. SINNING. LASTINGMAGHINR No. 456,225. PatentedJuly 21 189 1.
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(No Model.) '15'Sheets-Sheet 12.
0. SINNING. LASTING MACHINE.
No. 456,225; Patented July '21, 1891.
I 15 Sheets-Sheet '13.
(No Model.)
0. SINNING. LASTING MAGHINE.
. Patented July :21; 1891.
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15 She etsSh eet 14.
(No Modell) v O. SINNING.
LASTING MACHINE.
No. 456,225. Patented July 21-, 1 891.
I? l I A? /0/ l l I0 I 0 l0 l0 6 O l 1/ O /EJ I -(No Model.)
0. SINNING'. LASTING MACHINE; No. 456,225. Patented July 21, 1891.
I F i :mr. mums PEYERS cm. mom-1.1mm, wnsnmafnu, 0. c.
15 Sheets-Sheet 15.
UNITED STATES PATENT @FFICE.
CHARLES SINNING, OF ST. LOUIS, MISSOURI.
LASTING-MACHINE.
SPECIFICATION forming part of Letters Patent N0. 456,225, dated July 21 1891.
Application filed June 4, 1890. Serial No. 354,247. (No model.)
To all whom it may concern:
Be it known that 1, CHARLES SINNING, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Lasting-Machines,of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming part of this specification.
This lasting-machine belongs to that class in which the last is held in the hands of the operator and guided and fed by the machine.
Reference is made to the claims for a statement of the novel features of the invention.
In the drawings, Figure 1 is a front elevation of the head of the machine. Fig. 2 is a rear elevation of the head. Fig. 3 is a side elevation of the head. Fig. 4 is a vertical longitudinal section of the head at 4 4, Fig. (3. Fig. 5 is an elevation of the head from the opposite side to that seen in Fig. 3. Fig. 6 is a plan or top view of the head. Figs. 7 and 8 are detail top views showing the crimper in different positions. Figs. 9 and 10 are detail side elevations showing parts of the crimper mechanism. Fig. 11 is a detail vertical transverse section at ll 11, Fig. 8. Fig.
2 is atop View of the pincher-rod. Fig. 13 is a detail perspective view of the feed-regulator. Fig. 14 is a detail perspective view of the front part of the connecting-rod of the feed mechanism. Figs. 15 and 16 are detail side elevations showing the sliding frame respectively in its forward and backward positions. Fig. 17 is an elevation of the cam for moving the sliding frame. Fig. 1-8 is a side view of the pincher-lifting cam. Fig. 15) is a side view of the pincher-closing cam. Figs. 20 and 21 are enlarged detail vertical sections of the machine at 20 21, Fig. 5, the carriage or sliding frame being in its rear position in Fig. 20 and forward position in Fig. 21. Fig. 22 is a detail section showing the connection of the tack-driver set to the tack-driver bar. Fig. 23 is a detail transverse vertical section of part of the guide mechanism at 23 23, Fig. 24. Fig. 24 is a vertical longitudinal section at 24 24, Fig. 23. Fig. 25 is a transverse vertical section at 25 25, Fig. 24. Fig. 26 is a perspective view of the guide-bar. Figs. 27 and 28 are vertical sections at 27 28, Fig. 29. Fig. 29 is a horizontal section at 29 29, Fig. 27. Fig. 30 is a horizontal section at 30 30, Fig.
Fig. 31 is an elevation of the pincher-jaws and bearings of same. Fig. 32 is an eleva tion of the pincher-jaws in closed condition. 55
Figs. 33,34, 35, and 36 are perspective views showing the guide and feed point in various positions. Figs. 37 and 38 are top views showingthe presser-foot in different positions. Fig. 39 is a perspective View of the presser-foot and its bearings. Fig. 40 is a perspective view of the sliding frame. Fig. 41 is a per spective view of the folder. Fig. 42 is aperspective view of part of the pusher-head. Fig. 43 is a perspective view of one of the sliding pusher-bars. Fig. 44 is a side view of the pusher-head. Fig. 45 isa side view of the pusher-head with one side plate removed and with parts in section. Figs. 46 and 47 are transverse sections of the pusher-head at 46 47, Fig. 44. Fig. 48 is a front view of a tack box with tack-race in transverse section.
53 is a perspective view of the 'taek-carrier shown from the rear. Fig 54 is a perspective view of the tack-switch in two disconnected parts. Fig. 55 is a perspective View of the base-block of the tack-carrier. Fig. 56 is a perspective view of the safety-switch attach ment. Fig. 57 is a perspective view of the connecting-rod of the switch. Fig. 58 isa perspective view of the switch-connectionrod pins. Fig. 59 is a detail perspective view of a portion of the tack-carrier, and Fig. 60 is a perspective view of the same in detached parts. Fig. 61 is a detail perspective view of a tack-discharger. Figs. (32 and 63 are perspective views of the tack-deliverer seen, re-
spectively,from the upper and under side,
Fig. 72 isatransverse vertical section at 72 '72, Fig. 67. Fig. '73 is an enlarged detail section of the sliding tubular red by which the tackswitch is actuated, the section being at 73 73, Fig. 72. Figs. 74; and 75 are detail horizontal sections showing the tack-discharger in different positions. Fig. '76 is a cross-section of a tack-raceway. Fig. '7 7 is a perspective view of the upper of a shoe upon thelast ready for the operation of the machine. Fig. 78 is a perspective view showing the lasting process of the machine partly completed, and Fig. 70 is a perspective view showing the lasting process completed. Fig. S0 is a detail vertical section showing the pinchers drawing up the edge of the leather. Fig. S1 is a detail vertical section showing the tack-driver. Fig. S2 is a side elevation of the machine with most of the details of the head left out. Fig. S3 is a rear elevation of the stand-frame. Fig. 84: is a vertical longitudinal section at St 84, Fig. 83. Fig. 85 is a horizontal section at 85 85, Fig. 83. Fig. 8G is an enlarged detail vertical longitudinal section at 86 80, Fig. 83. Fig. S7 is an enlarged detail at 87 87, Fig. 88. Fig. 88 is a cross-section at 88 88, Fig. 87. Fig. 80 is a detail vertical longitudinal section at 8!) 80, Fig. 85. Fig. 90 is a detail side elevation showing the brake.
is the base of the machine.
101 is a stand-frame, which may be of any suitable construction and material, and whose top 102 serves to supportthe head of the machine.
103 is a counter-shaft fitted in bearings 1.0 on the stand-frame. The shaft 103 carries a balance-wheel 105 and a belt-pulley 106. Upon the shaft is a fixed collar 107, which forms one member of a friction-clutch. 108 is a cone-pulley turning loose upon the shaft 103 and restrained from endwise movement on the shaft. The hub 100 of this pulley forms another member of the frictionclutch, the other member being formed by a friction-wheel 110, which is V-formed at the periphery to fit the beveled ends of the collar 107 and the hub 100. The construction is such that when the wheel is moved toward the shaft 103 motion is communicated from the shaft 103 to the pulley 108 by means of the clutch. The wheel 110 has bearing in the forked end 111 of an arm 112, hinged to the frame at 113, so that by a slight swing of the arm on its pivot or hinge 113 the wheel may be moved into orout of contaetwith the other members 107 and 100 of the clutch. The central part of the arm 112 has ear or cars 11%, to which is hinged one end of a connecting-rod 115, whose other end is hinged to the central part of an arm or lever 116, fulcrumed to the frame at its lower end 117 and carrying at its upper end 118 an anti-friction wheel.
110 is a treadle-lever keyed to a fulcrumshaft 120 near the top of the stand-frame and having at the lower end a forward extension or foot 121, whose lower edge 122 is in the are of a circle whose center is at the fulcrumpoint 120 of the lever 1.10. The construction is such that when the lower end of the lever 110 is moved backward from its normal position the edge 122 bears on the anti-friction wheel at 118 and forces the lever 116 backward, so that the elutch'wheel 11.0 is pushed against the other members of the clutch and the cone-pulley and shaft 103 caused to rotate. The lever 110 may now be swun farther back Without changing its hearing upon the anti-friction wheel at 118, so that the machine will continue running in all positions of the lever 119 except its normal. position. (Shown in Figs. "2 and 81.) The lever 110 is also used to regulate the power of the spring by which the crim pin g-pinehers are drawn upward, and the operation of the lever for this purpose will now be described.
123 is a connecting-rod, one end of which is hinged to the lever 119 and the other end hinged to the verticalarm 124 of a bell-crank lever, whose horizontal arm 125 is forked at the end 120. Through the fork extends from abovethe rod 127 of the lifting-spring 128, whose upper end is connected to the rear end of the lever 120, by which the crimping-pinchcrs are drawn up.
1350 is a collar upon the rod 127, held in place by a set-screw 131 and having at top ribs 132, which occupy notches in the under side of the fork 126, the construction being such that as the lever 110 is moved backward the forked end 12Gis depressed andincreases the tension of the spring 128.
is a ratchet-bar immediately below the edge 122, and 134 is a pawl hinged to the tread1e-foot 121 and adapted to engage the ratchet-bar and hold the lever 110 from forward movement. To engage the pawl with the ratchet, the pawl is depressed by the foot of the operator, and when engaged with the ratchet is held in engagement by friction. On a slight backward movement being given to the lever 11.0 the pawl is thrown up by a spring 155 beneath it, and then the lever may be swung forward by the spring 128.
In order to check the rapid movement of the lever I connect with it a dash-pot, which will be now described. The horizontal arm 125 of the bell-crank is hinged to the rod ofa piston 137, the piston working in an openbottomed cylinder 138, hinged at 130 to the standframe. The cylinder has at its upper end a small vent-hole 140, that is scre\vthreaded, and a channel 111 is cut through the thread at one side. 1112 is a screw fitting in the hole 1 10 and made flat at one side, as seen at 1 The construction is such that when the fiat part 1 13 of the screw exactly coincides with the channel the air passes freelythrough the channel, and by turning the screw the channel may be partly or wholly closed.
list is the foot of the treadle by which the crimping movements are governed and also the position of the last. The treadle-foot rocks on a pin 115, which also forms the pivot of a treadle-arm 1 10, to whose free end the 108 on shaft 103.
treadle-rod 147 is hinged. The arm 146 has a vertical longitudinal slot 148, through which passes a downward extension 149 at the rear part of the treadle-foot, and is held by a screwbolt 150, that passes through the arm and with the base 152.
154 is a shaft carrying a cone-pulley 155, connected by a belt 156 with the cone-pulley The shaft 154 has bearings at 157.
158 is a spur-pinion upon the shaft 154. The spu r-pinion 158 engages a spur-wheel 159 upon the cam-shaft 160. The shaft 160 has bearings at 161 in the fixed frame 153. The shaft 160 carries a balance-wheel 162, which is adapted to be used as a hand-wheel in adjusting the mechanism to any desired position when it is not running.
163 is a longitudinally-sliding frame or carriage having faces 164, bearing against parts 165 of the fixed frame, and bearing-strips 166, which are inserted over the carriage. (See Figs. 2, 4, and 40.)
167 are extensions from the rear part of the carriage, which have inwardly projecting studs 168, carrying anti-friction rollers 169 that work in the cam-channels 170 of the cams 171 and 171 upon the shaft 160. These cams rotate in the direction indicated by the arrow and cause the longitudinal reciprocation of 180, carrying anti-friction rollers.
the carriage.
The pinchers, with their rod or stem, are shown in detail in Figs. 27 to 32, inclusive.
172 is the pincher rod or stem, to which the jaws 173 and 174 are pivoted at 175. The rod 172 carries a sleeve 176, which has endwise movement on the rod. The sleeve has extensions 17 7 lying each side of the jaws and connected by three cross-pins 178, 179, and
The construction of the parts is such that when the sleeve 176 moves downward on the rod 172 the pins 178 and 180, by pressure against the outer sides of the jaws, press their points together to hold the edge of the leather while the pinchers are raised to draw up the leather on the last. To release the leather the sleeve is drawn upward on the rod, when the points of the jaws 173 and 174 are separated by the upward movement of the sleeve on the rod, which relieves the jaws from the pressure of the pins 178 and 180, and the jaws are opened by the pressure of the pin 179 against their inner sides. The jaws are shown in their open and closed positions in. Figs. 27 and 28, respectively. The points of the jaws are serrated to give them a firm hold of the leather. I will now describe the means for giving the described vertical movements to the rod 172 and sleeve 176. The rod has two fixed collars 18]., between which is aloose ring 182, having at opposite sides transversely-projecting studs 183, which have bearing in blocks 184. These blocks have bearing in slots 186 in the forked end 1850f the lever 129, the blocks having slight endwise movement in the slots, as the rod has rectilinear movement,
circle. The lever 129 is f ulcrumed in the carriage at 187. The upward movement of the forward end of the lever 129 and the pinchers in drawing up the leather is caused by the spring 128, while the downward movement ofthe pinchers is caused by the cam 171, the lever having a cam-stud 188, armed with an anti-friction roller, which plays in the camchannel 189. In order to allow the spring to act to draw up the pinchers, there is a recess 190 at the side of the channel 189,into which the cam-stud enters. (See Fig. 18.) The jaws of the pinchers are open when they descend, the edge 191 of the leather being between them, and immediately after reaching their lower position the sleeve 17 6 descends and closes them upon the leather. The sleeve 176 carries a fixed collar 192,having a circumfer ential channel containing a ring 193, with and the end of the lever moves in an arc of studs 194, working in blocks 195, that have endwise movement in slots 197 in the forked end 196 of the lever 198. This lever is fulcrumed to the carriage at 199, and its rear end is connected to the lever129byaspiral spring 200. The spring acts to depress the sleeve 176 whenever the sleeve is not lifted by either its special cam 204 or by the pincher-rod. The collar 192 bears at bottom upon a shoulder 201 of the sleeve and is held at top by a nut and washer 202. (See Fig. 27.) ver 1.98 has a cam-stud 203, carrying an antifriction roller, which bears against the cam 204 of the cam-wheel171. The cam has a part between the salient points205 and 206 which allows the ascent of the stud 203, under the influence of the spring 200, to carry down the sleeve and close the jaws, as before set forth. WVhen the jaws close upon the leather, the rod 172 is drawn up by spring 128 and lifts the sleeve 176 with it until the jaws have reached their highest point, when the stud 188 reaches the end of the channel enlargement 190, and the rod 172 is held rigid. At the same time the projecting'part 206 of the cam 204 reaches the stud 203 and lifts the sleeve, opening the jaws and releasing the leather 191. After the jaws are opened the rod and sleeve again extend together in the same relativeposition until the jaws reach their lowest point, when the sleeve again descends on the rod and closes the jaws, as before described. As the pinchers are ascending the carriage is at rest; but as they reach their upper position and before they open the carriage begins a forward movement, so that the leather 191 is not simply drawn upward, but also drawn forward over the last, while at the same time the The le- IIO IIS
folder 207 begins to move forward and folds the edge of the leather down on the insole 208, the pinchers opening while the folder moving forward. At the sametime the spring pusher-feet are pressed against the leather and insure its smooth folding against the side of the last. The jaws open while the folder is moving forward, and the folder continues its forward movement and folds down the edge of the leather. The carriage continues to move forward, and the tack driven through the leather and insole. The sleeve 176 has bearing in the forward extension 209 of the carriage, and the rod or spindle 172 has bearing in the sleeve and above the sleevein the extension 210 of the carriage The top of the rod 172 carries a head 211, by which the rod is turned, when required, for the crimp ing of the leather.
The folding and pressing devices are upon a single head 212, supported on a rod 213, which has bearing in a longitudinal socket 211 in a downward extension 215 of the carriage. The rear end 216 of the socket is closed except for a hole of smaller diameter than the socket, through which passes a reduced part 217 of the rod. This reduced part 217 is screw-threaded and carries a stop-nut 218 and a lock-nut 219, the former of which limits the forward movementof the rod in the socket.
220 is aspiral spring surrounding the part 217 within the socket, and whose rear end bears against the rear end 216 of the socket, while the front end bears against the shoulder 221 of the rod. The spring acts to push the head 212 forward. At the rearof the reduced part 217 is a still further reduced part 222, that passes through a post 223, fixed to the base 152. Behind the post 223 the rod is screw-threaded and carries a stop-nut 221 and a lock-nut 225, the former limiting the forward movement of the head 212 relatively to the fixed frame, so that it does not accompany the carriage in its extreme forward movement.
The folder 207 constitutes the front end of the horizontal arm of a bell-crank 226, which is fulcrumed to the pusher-head at 227. The vertical arm 228 of the bell-crank rests at its front side against a sliding block 220, bearing against the rear end of a spiral spring 230, whose front end rests against an adjustingscrew 231, by which the power of the spring may be governed.
232 a screw whose front end rests against the rear side of the vertical arm 228 to limit the descent of the folder. Thus the folder is pressed down on the fold 191 of leather by the spring 230, and the amount of pressure regulated by the screw 231. The head 212 has anumber ofholes 233 to receive fixed pins 231, which are surrounded by spiral springs 235. it The presser-bars 235 are in a vertical series and are made rectangular in transverse section, so as to fit snugly together. The presser-bars have sockets 236 to receive the front ends of the pins and the spiral springs surrounding the pins. The fore ends of the spiral springs rest against the inner ends of the sockets 236 and their rear ends against the head 212. The presser-bars have. side wings 237, which work in slots 238 of the removable side plates 239 of the head. The bars 235 end in pads 210, which bear against the leather and push it against the side of the last. In order to hold the bars in their retracted position, (which is sometimes required in examining or testing parts of the machine,) I provide a catch 211, which turns one-fourth around in bearings 212, and which hasanumber of teeth, 213, adapted to enter the slots 23S and engage the fore ends of the wings. Ordinarily the catch 211 is in the position seenin Fig. 11 and does not interfere with the endwise movement of the bars. The lower part of the head has a fixed extension 211, which is bored through at 215, the bore extending through the body of the head and receiving the screws 231. 232, the block 22.), and the spring 230. The retracted position of the pusher-bars, with the catch in holding position, is shown in Figs. 15 and 17.
The means for regulating the feed and for crimping the leather 191 at the toe of the shoe will now be described. The treadle 111 has an upper position at the toe, as shown by dotted lines at 216, Fig. 82, a middle position, (shown in full lines at 217in the same figure) and a lower position, (shown by dotted lines at 218 in the same figure.) The crimping takes place only when the treadle is in the lower position, and this is done by turning the pinchers while they hold the leather. The trcadlerod 117 is connected at the upper end to a crank-arm 216 upon a rock-shaft 216, having upon it a worm-cam 250. One end of this cam has a wrist-pin 251, that occupies a slot 252 in the lower end of a connecting-rod 253, connected at the upper end to a lever 251, working on a fulcrum 255 upon the fixed frame 153. The lever is held in its normal and horizontal position (seen in Fig. 3) by a spring 256, extending from its free end to the fixed frame. To the other end of the lever 251 is pivoted a pin 257, that works in a vertical socket 258. The top of the pin extends above the top of the frame.
252 is an arm pivoted to the frame at 260, so as to swing in a horizontal plane, and. drawn toward the head 211 of the pincher-rod by a spring 262, connected to the arm and to apin 261 on the fixed frame. This arm carries at the free end a standing bevel-ended pin 263, which, as the lever swings to the head 261, passes beneath the inclined part or tooth 261 of a spring-latch 265. The latch is pivoted to the head at 266 and is depressed by a spring 267.
268 is a standing stud upon the top of the carriage, having on it an anti-friction roller 269. The construction is such that the stud 268, on the forward movement of the car riage, pushes the arm to its outer position,
if the arm is not already in that position. The outer position of the arm is shown in Fig. 6 and by broken lines in Fig. 8. Then the side and heel of the shoe are being worked upon, the arm 259 is held in its outer position by the pin 257, against which the inner side of the arm bears. When the toe of the last comes to the position to be operated upon, the treadle 144 is depressed to the lower position at the inner end, which pulls down the pin 257 and releases the arm, so that it is drawn inward by the spring 262, and the pin is carried beneath the tooth 264. On the forward movement of the carriage the arm is forced outward by the stud 268 and carries the head of the pincher-rod into the position seen in Fig. 8, when the pin escapes from the tooth and the arm is carried to its outer position. On the return movement of the carriage a standing stud 279 on the fixed frame engages a radial pin 271 upon the head and restores the pinchers to their normal position. In case the pin 257 is in its depressed position when the arm 259 reaches its outer position, the arm swings inward as soon as the carriage moves backward, and the stud 268 permits such inward movement of the arm, andthe pin 263 again engages the tooth 264. In case the toe of the shoe has been finished the treadle 144 is raised into the upper position at the toe and the pin 257 moves upward into the course of the arm 259, which passes over the top of the pin in its outward movement, depressing the pin in its passage, and the pin after depression is thrown up by the spring 256 and engages against the inner side of the arm, as before explained.
To enable the forcing do wn of the pin 263, it is beveled at top, the arm striking the lower part of the bevel. An equivalent construction would be to bevel the part of the arm which strikes the pin.
At 272, Fig. 82, is shown by dotted lines a spiral spring engaging a collar 273 on the rod 147 so as to lift the rod and throw the treadle 144, into the position shown at 246, which causes the parts to take position for lasting the side of the shoe.
274 is the guide for the work, said guide extending beneath the fold 191 of theleather and lying on the insole, with a small downturned lip 275 engaging over the edge of the insole.
Now in lasting the toe and the heel it is necessary that the last should be in a position nearer to the body of the machine than in lasting the sides, being nearest when lasting the toe. The means for automatically changing the position of the guide for this purpose will now be described. 276 is a screw-rod turned by a head 277 and carrying a collar 278 and a nut 279. The hot has a The stud 280 projects through a longitudinal slot 281 in the side of thesockct 282 and engages the worm of the cam 250, as already stated. The guide 274 is rigidly attached to the collar278 and-extends downward through a longitudiin a circumferential groove 285 of the screwrod. Thegnide 274 is adjusted as to its mean position (to and from the body of the machine) by the turning of the screw 276 in the collar or nut 273, while the described inward and outward movement of the guide as the work progresses is caused by the worm-cam 250. In Figs. 9 and 82 the treadle 144 and worm-cam 250 are shown in the intermediate position, or position for lasting the heel, the guide 274 being also in the intermediate position. If new the treadle 144 be moved into the position indicated by broken lines at 248, the worm-cam will take the position shown in Fig 10, and the guide 274 will be then in the inner position, as required in lasting the toe. If, however, the treadle 144 is moved or allowed to move into the position indicated by broken lines 246, Fig. 82, the worm-cam will be turned in the opposite direction-to that indicated by the arrow in Fig. 9, and no motion will be given to the rod 253, as the wrist-pin 251 will only move the length of the slot 252. The guide 274 will, however, be moved outward by the rotary motion of the worm-cam 250 and take the position required in lasting the sides of the shoe.
The pinchers do not act while lasting the heel, and the device for throwing them out of action will now be described. The rock-shaft 249 carries at its fore end a cam having projections 286 and 288 and a depression 287 between them. When the side of the shoe is being lasted, the position of the cam is as seen in Figs. 20 and 21, the upper projection 286 being in action. The position of the cam when lasting the heel is seen in Fig. 1., while the lower projection 288 is in action in lasting the toe. The cam acts against. an antifriction roller 289 at the end of a sliding rod 290 transverse to the machine and connected at the opposite end to a hanging arm 291, having a catch 292, which is inclined at the lower side and horizontal at the upper side to engage a projection 298 on the lever 198, so that when the roller 289 is in the depression 287 the catch 292 is in position to arrest the descent of the lever, and consequently of the sleeve 176, so that'the pinchers do not close. When, however, either of the projections 286 or 288 is acting on the roller 289, the catch 292 is held out of the course of the projection 293, and the piuchers close upon the leather 191 at each descent. .The inner 0 position of the arm is shown by the broken lines in Fig. 20. 294 is a draw-spring tending to draw it into this position, and doing so whenever it is not held in'its inactive position
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432165A (en) * 1945-03-14 1947-12-09 United Shoe Machinery Corp Shoe lasting machine
US2607936A (en) * 1950-06-21 1952-08-26 Jacob S Kamborian Double wiper lasting machine
US2663035A (en) * 1949-12-31 1953-12-22 United Shoe Machinery Corp Lasting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432165A (en) * 1945-03-14 1947-12-09 United Shoe Machinery Corp Shoe lasting machine
US2663035A (en) * 1949-12-31 1953-12-22 United Shoe Machinery Corp Lasting machine
US2607936A (en) * 1950-06-21 1952-08-26 Jacob S Kamborian Double wiper lasting machine

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