US1412910A - Wood-heel-turning machine - Google Patents

Wood-heel-turning machine Download PDF

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Publication number
US1412910A
US1412910A US315081A US31508119A US1412910A US 1412910 A US1412910 A US 1412910A US 315081 A US315081 A US 315081A US 31508119 A US31508119 A US 31508119A US 1412910 A US1412910 A US 1412910A
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Prior art keywords
cutters
carrier
heel
blank
blanks
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US315081A
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Leland B Whipple
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FITZ EMPIRE DBLE PIVOT LAST CO
FITZ-EMPIRE DOUBLE PIVOT LAST Co
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FITZ EMPIRE DBLE PIVOT LAST CO
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/20Manufacture or reconditioning of specific semi-finished or finished articles of lasts; of shoes, e.g. sabots; of parts of shoes, e.g. heels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/304536Milling including means to infeed work to cutter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/30784Milling including means to adustably position cutter

Definitions

  • Woon-HEEL-TURNING MACHINE vTo all w/'Lom t may concern:
  • This invention relates tomachines for- *vor from the breast to the rear of the blank, does' not permit cutting about the blank continuously from one breast corner to the other. Any attempt to cut against the grain of the wood is. attended by unsatisfactory results due to the gougingv or tearin;l effect of the .cutter upon the wood fibres, consequently two operations are necessary, one in the direction of the grain of the wood on one side of the blank, and the other in the direction of the grain of the wood on the opposite side of the blank.
  • Another important feature ofthe invention consists in mounting the molded cutters for tilting movement at each side of the feeding path of the heel blank carrier and automatically effecting a change 1n the angular position of the cutters as they act progressively along a blank.
  • the tilting movement of the cutters may be sufficient, but a further feature of the invention consists in additionally supporting the cutters for movement heightwise of the heel blanks as theyy are tilted relatively thereto. l ters are thus brought into action at different Aparts of the heel, and, a variation in shape lis thusproduced.
  • the molding cutters are mounted to act upon the blank froml opposite sides of the feeding path of the blanks, means are provided to move the cutters laterally about the rear of the blank. Unless the cuts made by the respective cutters accurately meet at the rear of the heel, a rid' e or uncutpor Different parts of the cut- Y heel or slightly beyond this point as the heel blank being treated is moved inthe direction of feed by the carrier.
  • a still furtherv important feature of the invention consists in automatically tilting the cutters, and moving them in -a vertical and horizontal. direction as they operate upon a blank. These movements of the cutters are preferably secured by pattern means which, in the present instance, are movable with the heel blank carrier.
  • a further feature of the present invention consists of ⁇ a carrier having blank holding clamps and means for automatically clamping a presented blank, moving it past the molding cutters,
  • Fig. 1 is aside elevation of a machine containing the present invention, some of the parts being broken away to show elements beyond;
  • Fig. 2 is an -end elevation
  • Fig. 3 is a plan view, some of the parts at the ends of the machine being broken away;
  • Fig. 4 is an enlarged detail showing one of the heel blank clamps mounted on the carrier, some of the parts being broken away;
  • Fig. 5 is a section on line 5 5, F 1 g. 4
  • Fig. 6 is an enlarged diagrammatlc vlew showing in outline one of the cutters and a heel lblank in the relative positions they may occupy as the cutter operates along the heel to the centre line at the back thereof;
  • Fig. 7 is a perspectiwe view ⁇ with some the cutters and its associated features
  • Fig. 8 is a section on the line 8, Fig. 7;
  • Fig. 9 is a view of arts relating to the cutter mounting and a justments, the parts being shown in separated relation;
  • Fig. 10 is a detached detail showing one form of means for ,feeding the carrier at different speeds;
  • Fig. 11 is a diagrammatic View showing the cutter positions and relations with the heel as .it operates along the heel to the rear thereof;v Figs. 12 and 1 3 are similar views show- 1n hel surface by relative adjustment .of the cutter and its lateral controlling means.
  • the main frame of the machine may be of suitable construction for supporting the some of the Variations formed ill the p operating parts, Vand as shown, comprises f the -side members 1 suitably connected by the ties 2.
  • the shaftl 3 which may be driven from -any suitable source of power.
  • the shaft 3 is 7 of a clutch referably splined to the motor shaft shat 6 for rotative movement therewith buty permissive movement longitudinally thereon.
  • Fig. 10 Pivotally mounted at 12, Fig. 10, upon a bracket 13 projecting from the machine frame, is the yoke 14, Figs. 2 and 10, carrying pins or rolls 15 which engage a circumferential groove in the hub portion 16 of the clutch member 7, thev construction being .such that upon rocking movement of the motor shaft 6 and the intermediate shaft 8.
  • the construction being such that upon movement of the handle 2l by the machine attendant, the clutch members 7 and 9 may be engaged or disengaged at will.
  • the shaft 3 has secured thereto the two similar crank arm's 22, Figs. 1 and 7, and as these crank arms are of similar construction, description of one will suffice for both.
  • the crank arm 22 has a hub portion which serves to connect the crank arm with the shaft 3.
  • Extending longitudinally of the crank arm4 is a guide-way 23 in which is mounted the slide 24,- Fig. 10.
  • the slide 24 is adjusted lengthwise the guide-way 23 by suitable means, such, for instance, as the adjusting screw 25, which, in the present instance, is shown as threaded into the slide 24 and has a collared head portion at 26 which engages at opposite sides of the slotted lug 27 projecting from the crank arm 22, the construction being such that upon manipulation of the adjusting screw 25, the slide 24 may be moved towards or from the axis of rotation of the shaft 3.
  • suitable means such, for instance, as the adjusting screw 25, which, in the present instance, is shown as threaded into the slide 24 and has a collared head portion at 26 which engages at opposite sides of the slotted lug 27 projecting from the crank arm 22, the construction being such that upon manipulation of the adjusting screw 25, the slide 24 may be moved towards or from the axis of rotation of the shaft 3.
  • crank arms 22, as indicated in Fig. 7, are preferablyarranged 18()o apart, that is,
  • the slides 24 are supported diametricallyatopposite .sides of theshaft 3 ⁇ for a purpose that will more fully appear.
  • a' link 29 Pivotally connected to each of the slides 24 at 28 is a' link 29, the opposite end of each of which is connected at 30, to arms 31.
  • each of the arms 31 has an opposite member 33 ⁇ carrying a feed pawl 34 pivotally connected to its arm at the upper portion 35 and normally under the vcontrol of yielding means for causing the respective pawls to engage with the heel blank carrier, to be hereinafter described, and permit disengagement of the pawls therefrom.
  • each of the pawls 34 is provided with a rod 36 pivotally connected tothe pawl at 37 and extending loosely through a lug 38 carried by the pawl actuating member. Between the lug 38 and a collar 39 carried by the rod 36, is the spring 40, the construction being such molded cutters to act from opposite 'sides of the path of relative traverse movement and upon opposite sides of the blanks..
  • the carrier for the'heel blanks comprises a series of links 42 and 43 pivotally connected at their end portions at 44 into a flexible endless chain construction.
  • the rotary supporting members 44 and 45 have fiat peripheral portions, as indicated in Fig. 1, for properly conforming to the links 42, 43, as the supporting members 44 and 45 rotate.
  • the supporting members44 and 45 may be appropriately carried in suitable bearings 46, 47, in the machine frame and in order that the carrier A passing about the supporting 'members 44 and 45 may be properly adjusted to conform the upper .run of the carrier A to its proposed path of movement, the bearings 46, 47 may be adjustablyl mounted' in'the yokes 48, Fig. 1, and adjusting screws50 maybe provided for adjusting the bearings 46 and 47.
  • the pawls 34 cons titute one convenientform of feeding means for the heel blank carrier- A, and are adapted to engage with lugs or in recesses 51, bestshown in Fig. .10, as the pawls successively move in their operating stroke.
  • the recesses 51 are formed in the under surface of the link membersof the carrier, andthe feed pawls, under the .action of the springs 40, arehenabled toengageand disengage the recesses 51 to feed the ⁇ carrier on the loperating stroke of the pawls.
  • the heel blank carrier A has mounted thereon a series of clamps for securing the Wooden heel blanks in-xed position relative to the carrier as it moves or feeds the from an arm 52, Figs. 4 and 7 and 10, the U overhanging upper end portion of which is provided with a spring actuated clamping member 53 which may be provided with a suitable roughened or toothed engaging surface to securely hold one end of the blank.
  • the clamping member 53 is mounted on a pin 54 having the adjustable head portion 55 preferably formed by adjustable nuts, and mounted in the recess of the overhang of the arm 52 and surrounding the pin 54, is a spring 56, the normal tendency of which is to depress or project the clamping member 53.l
  • the lower clamping member 57 Mounted for-sliding movement relative to the link 43 of the carrier isthe lower clamping member 57 to the upper end portion of which is secured a clamping block 5S conveniently securedto the clamping member 57 by suitable means, such as the screw 59.
  • the clamping member 57 .eX- tends through the link 43 and'at its lower end portion has rotatively mounted thereon the roller v60 adapted to engagea trackway 61 mounted on the machine frame below the carrier.
  • the clamping member 57 has guiding connection with the link l43 by means of the winged portions 61X on the y a lug 66 carried by the machine-frame andl .clamping member 57 which embrace a guide in position to be engaged bythe rolls 604 as the carrier is given its feeding movement, and in order that the trackway 61 may be properly positionedfor effecting the clamping action desired between the clamping Amembers 53 and 57, hereinbefore described,
  • the trackway is adjustably supported at each end-upon the machine frame, as indicated in Fig. l.
  • the adjustment of the trackway 6l may be variously effected, but in the present instance of the invention, an adjusting screw 65, Fig. 1, passes through engages the trackway 61.
  • Such adjusting device may be provided at desired intervals along the trackway, or atv either end, as circumstances may'dictate, the construction being such. that the trackway may be 'properly adjusted to secure the desired clamping action of the heel blanks between the upper and lower clamping members.
  • a supporting bar or track 67 is adjustably secured to the machine frame below the track 61 and in position to be engaged by the side portions of the carrier A, as indicated in Fig. 2, as the carrier moves in its idle position between the rotating supporting members 44 and 45.
  • the adjustabilityv of the supports 67 may be secured by means similar to' those descrlbed for the trackway 61, as indicated in Figs. 1 and 2.
  • alternate links of the carriers A may be provided with clamps for rigidly securing wooden heel blanks thereto,but, of course, this feature of the invention 'may be variously modified and more or less of the links*- be provided with clamps. yIn any event, however, it is desirable that the clamps may be automatically actuated to clamp the wooden heel blanks as they are presented to the machine,and to automatically unclamp or discharge the finished heels.
  • the trackway 61 herexinbefore described, is provided with an inclined end portion 68, Figs.
  • the spring actuated plunger 64 normally tends to separate the clamps 53, 57 and, consequently, a. heel blank may be presented between the .clamps 53 and 57 prior to the engagement of the roll 60 of a clamp with the incline 68 of the trackway 61, and, as the roll thereafter moves upward' along the incline 68,. the blank a, Fig. 4, will be automatically clamped and rigidly held in position for the action of the cutters.
  • the heel clamps successively pass from, the end of the trackway 61, thereby permitting the spring actuated plunger 64 to separate the clamp members 53, 57 and automatically discharge the finished heels.
  • the heel blanks, whenl taken by the clamps, are subject to considerable .clamplng pressure which' might, in some instances, tend to liftthe carrier or link ⁇ towhich the clamp is connected.
  • the present invention contemplates that the carrier A may Vbeplrevented 'from responding to this actlon of the clamp by .confining the carrier to its predetermined path of movement.
  • the links of the carrier are rovided with outer dove-,tailed portions 69, 91g. 7, whlch underlie overhangmg vportions which may be formed as gibs or guideways on the machine frame.
  • the number of molded cutters employed may be varied to' suit varying conditions, but in the present instance of the invention two rotary molded cutters are shown, each of Similar construction and mounted for acting, one at each side of the path of movement of the blanks or carrier, to successively treat opposite side and rear portions of they blanks.
  • the machine frame has its top portion provided with guideways? 1, Figs. 3 and 7, in which is adj ustably mounted' the upright 72 carrying laterally extendin which is pivotally mounted at a the swinging arm 75, on which one of the molded cutters is mounted, as will hereinafter more fully appear.
  • the base portion of the upright 72 is provided with a lug 76y which is engaged by a threaded adjusting bolt 77 and provided with an operating handle 78.
  • rllhe adjusting bolt has a collaredl portion at each side of a iiXed lug 79 and is, therefore, held from longitudinal movement in the lug but may rotate with respect thereto, with the result that the upright 72 may be adjusted in the guideways 71.
  • the cutter B is connected to the swinging arm in a manner to be -hereinater'described, but for the present it is sutlicient to note that the cutter B moves with the arm 75 as the latter turns about its pivotal mounting 74 and that the cutter is thus movable laterally with respect to the wooden heel blanks presented b A the carrier as indicated in Figs. 3 and 7. ivotally connected to the arms 73 into swing the arm 75 laterally inward toward Vthe path of movement of the y heel blanks mounted ,on the carrier.
  • the sleeve 82 is connected to the bracket 83 by means of an arml 86, Figs.
  • the present invention contemplates that the cutter shall act along the side of the blankcommencing at thev I' breast corner towardsv the rear of the heel blank, and then move inwardly to or slightly beyond the median rear line oi the heel.
  • a bracket 91, Figs. 7 and 8, -iS secured to the arm 75 by a bolt or other fastening means 92, Fig. 8, and is adjustable laterally ofthe arm 75 by means of the adjusting screw 93, the construction being such that by loosening the securing means 92, the bracket 91, Fig. 8, may be laterally adjusted and then clamped Yin adjusted position.
  • bracket 91 projects laterally at 94 and to such lateral projection of the bracket there is adjustably secured an arm l95, carrying a stud or roller 96 which, in connection with means to be described, serves to determine the lateral position of the cutter B.
  • the arm may be secured adjustably .to the bracket 91 by Y suitable means such as ythe adjusting screw 97, Fig. 7, threaded to a lug 98 on the projection 9a oi the bracket and mounted to turn in, but restrained from longitudinal movement with respect to, a lug 99 carried by the bracket 95, the construction being such that by manipulation of the adjusting screw 97 the position of the roller 96 maybe changed relative to the cutter B.
  • a templet 109 is mounted on the carrier adjacent each ot the heel blank clamps as indicated in Fig. 7, and along the templet the roll 96 travels as the carrier moves the templet and adjacent heel blank in its path of travel'past the cutter.
  • the trailing portion of the temnlet 100 is curved, as indicated pulse of the spring 85 as the blank'moves switches 'are of fthe. samel construction ltion being such that as the roller 96 travels relatively to the cutter, the effect being to causethe cutter to act along the side of the blank from the breast corner towards the rear andthen to move inwardly to or beyond the median line at the back of the blank.
  • Such means comprise members 101, which, 'forV identification, vmayv be herein Areferred to as switches, one beinglocated adjacent'. each of the clamps on the carrler. Slnce these throughout and act in thel same manner in the performance of their functions,- aV description of one will be ysuilicient.
  • switch 101 Fig. 7 . is pivotally mountedat 102 upon the' carrier andhas Ja biurcated.
  • the switch v101 has a of the next preceding templet, theconstruci along the templet to its trailing end lportion acting upon the roller 96 as the carrier travand moves inwardly to carry the cutter about the rear of the blank, it engages the end por-v tion 103 of the succeeding switch which thereby acts as a stop to limit the lateral inward movement of the cutter, and thereafter the inclined edge portion of tlie switch,
  • Fig. 13 the axis of the roller 96 is indicated. as having been adjusted forward of the axis of the cutter B so that as the roller 96 -travels along the templet 100 in the manner hereinbefore described, the breast width of the heel mayl remain thel same as when the'axis of the 4roller 96 and thecutter B are in alignment, but as the cutter moves about the rear portion of the vheel a greater fullness yor rear cuted.
  • the cutter B shall notonly have the characteristicv lateral movement hereinbefore descrlbed, butthat it may be tilted and moved -vertically as it passes along vand about the heel and one convenient form of means to 'these ends will now be described.
  • the cutter pivot carrying frame 105 provided with an upwardly extending arm 106 carrying a roller 107 adapted to move in -a trackway 108 as the arm 75 is laterally ⁇ form of pivotal connection consists of a pin 111 onl the frame 105 which engages an.
  • the present, invention contemplates that a iaiaeio .with the pivot as a center, and bolts 115v serve to guide the swinging :trame 110 as it moves about its pivotal axis.
  • rFhe cutter B is mounted on a'shaft 116,-
  • Fig. 8 held in suitable bearings 117 carried by a frame 118.
  • the shaft 116 of the cutter passes through a motor 119 which may be secured to the frame 118 by suitable means, such as the bolts 120.
  • rl ⁇ he motor 119 may be of the usual electric type serving to impart to the cutter shaft and cutter, rotary motion.
  • the frame 118 is adjustably mounted on the swinging trame 110 by means of securing bolts 121, and may be adjusted verticallywith respect thereto by means of an adjusting device which, in the present instance of the invention, comprises an adjusting screw 122, Fig.l8, mounted for rotary movement in an arm 123 and threaded into projections from the upper bearing 117 of the frame 118, the construction being such that by loosening the bolts 121, and manipulation of the adjusting screw 122, the cutter carrying frame 118 may be adjusted to move the cutter upward, or downward relative to its pivotal axis. From the construction described, it will be apparent that the axis about which the cutter Bv tilts, passes transversely of the cutter and that the cutter may 'be vertically adjusted by hand to place the axis in different vertical relation thereto.
  • an adjusting device which, in the present instance of the invention, comprises an adjusting screw 122, Fig.l8, mounted for rotary movement in an arm 123 and threaded into projections from the upper bearing 117
  • rlhe means for automatically tilting the cutter about its axis as it operates upon a heel blank may be variously contrived, but in the present instance of the invention comprises an arm 124, Fig. 7, pivotally mounted l the clamp screws 129, Fig. 7.
  • roller 126 has secured thereto the upwardly extending arm 130, Fig. 7, connected at its upper end portion to a link 131 jointed to the-swinging frame 110 at 132,v the construction being such that as the roller 126 is moved by the passing cams or patterns 127 on the carrier, the swinging' trame 110, and, perforce, the cutter and motor carried thereby, will be moved about the pivotal axis 111.
  • the roller 126 may be maintained in operative relation with its cams or patterns 127 by suitable means which, in the present instance of the invention, consists ot a spring 133, Fig.
  • The' slide 138 is connected to a lower slide 141 by an adjusting screw l142 which may be appropriately turned by vhand .for relaf tively adjustingthe slides 138 and 141 by means of a handleor crank arm 143.
  • rlhe slide 141 which, as describedkis vertically'movable in the frame .140, is provided at its lower end with a roller 144, Figs. 1 and 7, which rides upon cams or patterns 145 mounted on the carrierA, the construction being such that as the carrier is moved to feed the blanks to the cutters, the roller 144 will ⁇ ride upon the cams or patterns 145 and raise or lower the cutter through the connections described to vary its position heightwise of the blank being treated.
  • the carrier A is formed of link members flexibly connected together, and carries the cams or pattern devices for controlling the tilting and vertical movement of the cutter
  • the cam or pattern devices 127, 145 are formed in sections corresponding to the link members which carry them and are preferably connected thereto detachably by means of cap plates 146, Fig. 7, the construction being such that the cams or patterns maybe readily removed and replaced by others to change the tilting and vertical movements of the cutters as pre- .superposed views taken at right angles.
  • the dotted line gure is taken with the line orIl sight perpendicular to the direction of feed.
  • the point f is the projection ci the axis of tilt through the angle it, z'. (This is the axis 111); and in the full line figure the point f is a point of that axis which would extend across the paper parallel to the word ln'ventor, if it were drawn in. Assuming that the axis about whichv the cutter tilts is at f, Fig. 6,
  • the variation in heel shapes produced by the action of the cutters on the heel blank, 4 may be indefinitely varied.
  • its degree andtime of tilting action may be indefinitely varied and the machine hereinv deood practical form of the present inventlon, be adapted for the formation of wooden heels of greatly varying styles and shapes.
  • the cutter head is I shown as of considerably greater vertical depth than the heel. This enables different portions of the cutter 'to be used at different' parts of the heel periphery and permits the. cutter, therefore, by virtue of the vertical shift, to combine different curves required in the peripheral surface at the breast and at the 4rear of the heel.
  • a carrier for supporting and feeding heel blanks for supporting and feeding heel blanks, rotary molded cutters mounted to act one at each side of the feeding path, and means for bodily moving the cutters in a Yplurality of directionsas they progressively act from breast to rear along the blank.
  • a carrier meansfor securing wooden heel blanks onvthe carrier, means for movingthe carrier in a predetermined path, rotarymolded cutters arranged to act successively upon vopposite sides of a blank as it is moved by the carrier, and means for automatically changing the positions of the rotary cutters in a plurahty of directions at each side of the predetermined path as they act successively upon opposite sides of a blank.
  • a heel carrier having'I provisions for securing heel blanks in fixed position thereon, rotary cutters arranged at each side of the path of movement of the heel blanks as they are fed along by the carrier and to act on oppositey sides of the heels, and means for automatically changing the position of the cutters in' -directions towards and from and heightwise 10.
  • a carrier for presenting heel blanks to be treated clampsfor securing the blanks in fixed position on the carrier, rotary cutters arranged to act one at each side of the path of movement of blanks presented by the carrier, and means for changing the horizontal; vertical, and angular posltions of the cutters as they act along a heel blank.
  • a carrier for supporting and feeding blanks
  • cutters arranged at opposite sides of the feeding path to act upon opposite sides of a blank as it is fed by the carrier
  • patv tern means movable with the carrier to control the sidewise and angular position of the cutters relative tothe blank.
  • the combinationof a carrier for supporting and feeding blanks, cutters arranged at opposite sides of the feeding path to Vact upon opposite sides of-a blank as it is fed by the carrier, and pattern means movable coincidently with the carrier for moving the cutters heightwise as they 'act along a blank.
  • pivotal support for each cutter and means for'swinging the cutters about their pivotal supports as they act along a blank,- there being 'provision forv adjustment between the cutters and the swinging means to effect proper timing between the cutter and the work.
  • each cutter means for tilting each cutter about an axis passing transversely through the cutter as it operates upon a blank.
  • each cutter means for tilting each cutter about an axis i passing transversely through -the cutter as .1t operates upon the blank, and means for presenting heel blanks for treatment, two molded cutters arranged to act upon opposite sides of a blank from breast to rear, and means acting automatically to tilt the cutters about an axis passing transversely of the respective cutter axes as they operate upona blank.
  • j 'l l 23 In a machine of the class described,
  • each cutterv means for automatically tilting each cutterv aboutan axis extending transversely of the respective cutter axes, lmeans for relatively adjusting each cutterand its tilting axis in a direction lengthwise of thel cutter, and means for automatically moving the cutters heightwise ofthe blank as the cutters operate upon'a blank.
  • cutters means for relatively. moving the supporting means and cutters to cause the cutters to'act successively upon the blanks at opposite sidesl of the path of relative movement, and means for causing'the cutters to successively move to the median longitudinal vertical plane at the rear of the blank as the cutters and blank are relatively moved ast each other.
  • a carrier for supporting and feeding wooden heel blanks rotary molded cutters arranged to act successively upon a blank from breast to rear and about the rear at opposite sides of the feeding path as the blank is fed by the carrier, and means for varying the speed of the carrier to cause the cutters to-travel over the heel blank more slowly as the cutters 'pass about the rear of the'blank transversely of thegrain of the wood.
  • the combination of a carrier for supporting and presenting wooden heel blanks for treatment, molded cutters mounted to act along opposite sides of the blank-on the carrier ⁇ means for moving the cutters laterally about the rear end of the blank, a templet for controlling the path of lateral movement of the cutters, and a second templet for moving the cutters laterally outward in position to start operation on another blank at the breast corners.
  • a carrier for supporting and presenting wooden heel blanks for treatment
  • molded cutters mounted to act along opposite sides of the blank on the carrier
  • y means for moving the cutters laterally aboutL the yrear end of the blank
  • a vtemplet for controlling the' path of lateral movement of the cutters
  • switch means acting as the carrier and cutters are relatively moved to restore the cutters laterally to outward position.
  • a carrier comprising a series'of flexibly con- "nected link members provided with means for'holding heel blanks, means for feeding the carrier to present the heel blanks for treatment, molded cutters supported to act on opposite sides of the blanks as they are fed along by the carrier past the cutters, and means for changing the lateral and vertical position of the cutters as they operate along the 'heel blanks.
  • a carrier comprising a series of-flexibly connectedlink members provided with means for holding heel blanks, means for feeding the carrier to present the heel blanks for treatment, molded cutters supported to act on opposite sides of the blanks as they are fed along by the carrier past the cutters, means for moving the cutters laterally about the rear of the Vblanks as they are fed alongY y by the carrier, a templet movable with the carrier and controlling the lateral movement of the cutters, and means for restoring the.
  • a heel blank carrier two rotary molded cutters to act one on each side of a heel blank, mea-ns for moving the carrier to feed heel blanks to the action of the molded cutters, means for moving the cutter laterally inward relative to the blank being treated 4to cause the cutters to move about the rear of the blank, a templet movable with the carrier for controlling the inward movement of the cutters, and a switch mounted on the carrier and acting as the carrier is moved to restore the cutters to initial position.
  • a heel blank carrier ⁇ two rotary molded cutters to act one on each side of a heel blank
  • means for moving the carrier to feed a heel blank to the action of the molded cutters means for moving the cutter laterally inward relative to the blank being treated to cause the cutters to move about the rear of the blank
  • a templet movable with the carrier for controlling the inward movement of the cutters
  • a switch member pivotally supported on the carrier and acting as the carrier is moved to restore the cutters to initial position.
  • a heel blank carrier In a machine for making wooden heels for boots and shoes, the combination of a heel blank carrier, two rotary molded cutters to act one on each side of a heel blank, means for moving the carrier to .feed a heel blank to the action of the molded cutters, means for moving the cutter laterally inward relative to the blank being treated to 100 cause the cutters to move about the rear of the blank, a templet movable with the carrier for controlling the inward movement of the cutters, and a pivoted-switch member having a portion to limit the inward move- 105 ment of the cutters about the rear of the blank and acting as the carrier is moved to restore the cutters to initial position.
  • a 110 flexible heel blank carrier means for moving the flexible heel blank carrier to feed blanks
  • a pair of molded cutters one of which is arranged to act along a heel blank vfrom one side of its feeding path and the other of which is arranged to act along a heel blank from the opposite side of its feeding path
  • means for moving the cutters laterally inward about the rear of the heel blank being treated means for moving the cutters laterally inward about the rear of the heel blank being treated
  • a templet for controlling the inward movement of the cutter
  • a switch member having a part to limit the inward movement of the cutters as they pass about the rear of a heel blank and acting as the carrier is fed to restore the cutters to initial outward position.
  • a flexible heel blank carrier In a machine for making wooden heels for boots and shoes, the combination of a flexible heel blank carrier, means for moving the flexible heel blank carrier to feed 130 blanks, va pair of molded cutters one of which is arranged to act along a heel blank from one side of its feeding path and the other of which is arranged to act along a heel blank from the opposite side of its feeding path, means for vmoving the cuttersv laterally inward about the rear of the heel blank being treated, a templet for controllin the inward movement of the cutter, and a pivoted switch mounted on the carrier and acting to limitv the inward movement of the cutters and to restore the cutters to their outward position that they may commence operation onanother blank at the breast corners.
  • a carrier provided with supports for securing for treatment, cutters mounted toact upon a blank one at each side of the feeding path, and means comprising a cam for automatically clamping a blank presented to the carrier for treatment and automatically unclamping the finished blank as the carrier is fed.
  • the combination'of a heel blank carrier provided with clamps for y securing blanks thereto, rotary cutters arranged to act uponopposite sides ofl blanks as they are fed by the carrier, and means acting automaticall for operating the "clamps as the carrler is fed to secure a charging the finished blanks.
  • the combination 0f a carrier formed of a series of pivotally connected links, means for securing blanks to the links ofthe carrier for treatment, means for moving the carrier to feed the blanks in a rectilinear path, cutters arranged to actone at each side of the feeding path of the blanks, and means for automatically dis- 47.
  • amachine for makin wooden heels for boots and shoes the com ination of a carrier formed of a series of pivotally connected links, a clamp for securing blanks' to the links of the carrier for treatment, means fOr moving the carrier to feed the blanks in a rectilinear path, molded cutters arranged to act one ateach sideof the feeding path of the blanks, and means for moving the cut-y ters vertically, horizontally, and angularly as the blanks are traversed past the cutters.
  • a heel blank carrier formed of a series of connected links, clamps for holding heel blanks mounted on some of said links, means for feeding the blank carrier, rotary molded cutters arranged to act one vfrom each side of the feeding path of the blanks, and cam operated means for tiltin the cutters and changing their lateral an vertical position as they act upon blanks fed past them by the carrier.
  • a heel blank carrier formed of a series of connected links, clamps for holding heel blanks mounted on some of said links, means for feeding thel blank carrier, rotary molded cutters arranged to act one from each'side of the feeding path of the blanks, meansfor moving the cutters laterally inward about the end of a blank as it is fed along by the carrier, templets mounted on the links of l the carrier to control the inward movement of the cutters, and switches for limiting the extent of inward movement of the cutters and for restoring the cutters to their outward position.
  • - rotary molding cutters arranged to act on opposite sides of the blanks as they move along with thel carrier, and a cam and connection for shifting the angular and vertical position of the cutters as they operate on a blank.
  • tary molded cutters arranged to act along the sides of the heel blanks at opposite sides of the relative traversing movement of the blanks and cutters, a inotor for each cutter, and means for automatically tilting the cutters and motors as the cutters act along the heel.
  • a machine for ma tary the sides of the heel blanks at opposite sides of the relative traversing movement of the blanks and cutters means for determining the lateral position of the cutters as they act ⁇ upon a heel blank, means for relatively adjustinglthe determiningmeans and cutters to vary t e action of the cutters uponthe heel blanks, and means for automatically tilting the cutters as they and the blanks are relatively traversed.
  • a carrier having means for securmg blanks to 1t, means for movlng ⁇ the carrier to feed the blanks in a rectilinear path, and a cutting instrumentality arranged on each side of the path constructed and arranged to feed along and around the ends of the blanks.
  • an endless carrier havf lng means for securlng blanks to it, meansfor moving the carrier to feed the blanks 'A in a rectilinear path, and a cutting instrumentality arranged on each side of the path constructed and arranged to feed along and ⁇ around the ends of the blanks.
  • a carrier for supporting and feeding blanks and a rotary cutter mounted to act adjacent to the feeding ath, said mounting compris'- ing joint mec anism constructed and arranged to permit the cutter to have a horizontal and vertical movement in a plane perpendicular to the line of feed and a rotational movement about an axis transverse to the cutter.
  • a carrier for supporting and feeding blanks, and a rotary cutter mounted to act adjacent to the feeding path said mounting comprising joint mechanism constructed and aring and vertical movement in a plane perpendicular to the line of feed and a rotal tional movement about an 'axis transverse to Wooden heels, the combination of a carrier or supportingand presenting heel blanks for treatment, romolded cutters arranged to act along the cutter, and cam operated mechanism for determiningv the said movements.
  • a rotary cutter head stationed adjacent to the feeding path, a carrier (105) for the cutter, an arm (75) .carrying the carrier and the .cutter head and carrier, carrier and arm,
  • said joint mechanism being arranged to produce movement comprlsed among rotational, vertical and horizontal movements, respectively, of the cutter head.
  • a carrier for supporting and feeding blanks a rotary cutter head stationed adjacent to the' feeding path, a carrier (105) forthe cutter; an arm (7 5) carrying the carrier and mounted on the main machine frame, there beingjoint mechanism located in one or more of the following named positions, viz.,
  • sald Joint mechanism being arranged to produce movement comprised among rotational, vertical and horizontal movements, of -the cutter head, and cam and follower mechanism between the main frame and the cutter head for controlling the said oint mechanism, in

Description

I B. 'WHIPPLEI WOOD HEEL TURNING MACHINE.
APPLICATION FILED AuG.4, 1919.
Patented Apr. I18, 1922.
5 SHEETS-SHEET l- Illlaxihllll I II .ruil vll Ii IIII LII..
ffl
L. B. WHIPPLE.
WOOD HEEL TURNING MACHINE.
APPLICATION FILED AUG-4. 1919.
1 ,4; 1 2, 9 1 O, Patented Apr. 18, 1922.
5 SHEETS-SHEET 2.
L. B. WHIPPLE.
WOOD HEEL TURNING MACHINE.
APPLICATION FILED AUG.4, |919. 1,41%10@ Patented Apr. I8, 1922.
: 5 SHEETS-SHEET 3.
L. B. WHIPPLE.
woon HEEL TURNING MACHINE.
APPLICATION FILED AUG. 4, l9l9..
Patented Apr. 8, 1922'.
5 SHEETS-SHEET 4.
L. B. WHIPPLE.
woon HEEL TURNING MACHINE. APPLICATION FILED AUG.4. 1919.
Patented Apr. 18, 1922.
5 SHEETS-SHEET 5.
uN-ITED STATES LED-AND B. WEIPPIE, 0F ROCHESTER, NEW YORK, ASSIGNOR T0 FITZ-IEMPIRE DOUBLE PIVOT LAST COMPANY, yOIE AUBURN, MAINE, A CORIORATION OF MAINE.
Woon-HEEL-TURNING MACHINE vTo all w/'Lom t may concern:
.Be it known-that I, LELAND B. WHIPPLE, a citizen of the United States, residin at Rochester, in the county of Monroe and tate of New York, have invented certain Improvenients in W ood-Heel-Turning Machines,/of which the following description,`
in connection with the accompanying drawings, is a specification, like reference Vch'aracters on the drawings indicating like" parts in the several figures.,
.This invention relates tomachines for- *vor from the breast to the rear of the blank, does' not permit cutting about the blank continuously from one breast corner to the other. Any attempt to cut against the grain of the wood is. attended by unsatisfactory results due to the gougingv or tearin;l effect of the .cutter upon the wood fibres, consequently two operations are necessary, one in the direction of the grain of the wood on one side of the blank, and the other in the direction of the grain of the wood on the opposite side of the blank. Owing to -the surface contour of the finished heels which extends along the' sides and about the rear of the heels, it is expedient to cut the blanks from the breast corners on each side in the direction of the grain ofthe Wood, to the medial line of the heel at the rear by means of cutters molded or formed to 4produce the desired surface. the present invention, therefore,.consist s of a novel organization of heel blank carrier on which the heels blanks are mounted and rotary molded cutters mounted to act upon the heel blanks at opposite sides of the feedl ing path asthey are presented by the carrier.
The cut or finished sides and rear surfaces of wooden heels may, in some instances, be conveniently formed by a simple traversing movement of molded cutters shaped to produce the desired contour, but heel styles vary. Some require a greater fullne'ssor bulge towards and at the rear An important feature of speieauqn of Lettersratent. Patented Apr, 18, 1922, Application'led August 4, 1919. Serial No.
of the heel leading to the heel seat.while others necessitate greater or less fullness toward .the tread surface at the rear of the heels, while a difference in contour at the breast and at the rear is frequently demanded.
Another important feature ofthe invention,=therefore, consists in mounting the molded cutters for tilting movement at each side of the feeding path of the heel blank carrier and automatically effecting a change 1n the angular position of the cutters as they act progressively along a blank. In some cases the tilting movement of the cutters may be sufficient, but a further feature of the invention consists in additionally supporting the cutters for movement heightwise of the heel blanks as theyy are tilted relatively thereto. l ters are thus brought into action at different Aparts of the heel, and, a variation in shape lis thusproduced.
In carrying this feature of the invention into practical effect the/tilting movement of the cutters in the present instance of the invention is produced about an axis passing transversely of the cutters, and means are provided for changing at will the relation of the cutters and tilting axes longitudinally of the cutters, thus adapting 'the cutter actionto a variety of different heel styles.
Since the molding cutters are mounted to act upon the blank froml opposite sides of the feeding path of the blanks, means are provided to move the cutters laterally about the rear of the blank. Unless the cuts made by the respective cutters accurately meet at the rear of the heel, a rid' e or uncutpor Different parts of the cut- Y heel or slightly beyond this point as the heel blank being treated is moved inthe direction of feed by the carrier.
When the cutters movelaterally inwardA to finish the rear of a heel blank, they must be returned to outer or initial position to 45 and carrying clamps for securing blanks side portions they act in the dlrection of the grain of the wood and good results may be secured by traversing the blanks and cutters relatively at 'high speed, but as the cutters move. inward about the rear of the heel should .the same s ed of 'relative traverse be maintained, t e cutters would' travel over a greater length of `surface in a u nitof time, thanwhile workingalong the side of theheel. This would tend to produce unsatisfactory results, especially in view of the fact that'as the cutters move inward at the rear of the heel they cut, to some extent, crosswise of thegrain.
.Another important feature of the invention, therefore, consists in relatively traversing the cutters and blanks at convenientlyl variable speed as the cutters move around the blanks to secure the most eflicient cutting action.
A still furtherv important feature of the invention consists in automatically tilting the cutters, and moving them in -a vertical and horizontal. direction as they operate upon a blank. These movements of the cutters are preferably secured by pattern means which, in the present instance, are movable with the heel blank carrier.
Economy of operation and increased output depend to a large extent `upon the facility with which the` heel blanks may be secured to the carrier and the finished heels discharged therefrom. The carrier inI its broad sense may be variously contrived but a good practical form of carrier consists of a series of links flexibly connected together thereto. A further feature of the present invention, therefore, consists of `a carrier having blank holding clamps and means for automatically clamping a presented blank, moving it past the molding cutters,
and automaticallydischarging the finished heel.
Various other features of thel invention and novel combinations of parts twill' be hereinafter described in addition to those above referred to and in connection 'with the accompanying drawings which illustrate one good practical form of the inven-vtion, it vbeing-understood that in its-true scope the invention may embrace various forms and modifications In the drawings:
Fig. 1 is aside elevation of a machine containing the present invention, some of the parts being broken away to show elements beyond;
Fig. 2 is an -end elevation;
Fig. 3 is a plan view, some of the parts at the ends of the machine being broken away;
Fig. 4 is an enlarged detail showing one of the heel blank clamps mounted on the carrier, some of the parts being broken away;
Fig. 5 is a section on line 5 5, F 1 g. 4
Fig. 6 is an enlarged diagrammatlc vlew showing in outline one of the cutters and a heel lblank in the relative positions they may occupy as the cutter operates along the heel to the centre line at the back thereof;
Fig. 7 is a perspectiwe view` with some the cutters and its associated features;
Fig. 8 is a section on the line 8, Fig. 7; Fig. 9 is a view of arts relating to the cutter mounting and a justments, the parts being shown in separated relation;
Fig. 10 is a detached detail showing one form of means for ,feeding the carrier at different speeds; I
Fig. 11 is a diagrammatic View showing the cutter positions and relations with the heel as .it operates along the heel to the rear thereof;v Figs. 12 and 1 3 are similar views show- 1n hel surface by relative adjustment .of the cutter and its lateral controlling means.
The main frame of the machine may be of suitable construction for supporting the some of the Variations formed ill the p operating parts, Vand as shown, comprises f the -side members 1 suitably connected by the ties 2. Mounted in the machine frame is the shaftl 3 which may be driven from -any suitable source of power. In the present instance of the invention the shaft 3 is 7 of a clutch referably splined to the motor shaft shat 6 for rotative movement therewith buty permissive movement longitudinally thereon. Mounted in the machine frame in `axilal ali ment with the motor .shaft 6 is the sha t 8 carrying the-other member l9 of the clutch and providedfwith a worm 10' which engages the worm .wheel 11 mounted on the shaft 3, substantially. as I shown in Fig. 7.
Pivotally mounted at 12, Fig. 10, upon a bracket 13 projecting from the machine frame, is the yoke 14, Figs. 2 and 10, carrying pins or rolls 15 which engage a circumferential groove in the hub portion 16 of the clutch member 7, thev construction being .such that upon rocking movement of the motor shaft 6 and the intermediate shaft 8.
Secured to the pivot shaft 12 which carries the yoke 14 is an arm 17, Figs. 2 and 10, to which is connected the rod 18. The other end of the rod 18 is jointed to an arm 19 secured tothe shaft 20, Figs. 2 and-10, which preferably extends transversely of the machine frame and is provided at a convenient point with an operating handle 21,
the construction being such that upon movement of the handle 2l by the machine attendant, the clutch members 7 and 9 may be engaged or disengaged at will.
The shaft 3 has secured thereto the two similar crank arm's 22, Figs. 1 and 7, and as these crank arms are of similar construction, description of one will suffice for both. The crank arm 22 has a hub portion which serves to connect the crank arm with the shaft 3. Extending longitudinally of the crank arm4 is a guide-way 23 in which is mounted the slide 24,- Fig. 10. The slide 24 is adjusted lengthwise the guide-way 23 by suitable means, such, for instance, as the adjusting screw 25, which, in the present instance, is shown as threaded into the slide 24 and has a collared head portion at 26 which engages at opposite sides of the slotted lug 27 projecting from the crank arm 22, the construction being such that upon manipulation of the adjusting screw 25, the slide 24 may be moved towards or from the axis of rotation of the shaft 3. j
The crank arms 22, as indicated in Fig. 7, are preferablyarranged 18()o apart, that is,
the slides 24 are supported diametricallyatopposite .sides of theshaft 3`for a purpose that will more fully appear.
Pivotally connected to each of the slides 24 at 28 is a' link 29, the opposite end of each of which is connected at 30, to arms 31.,
respectively, mounted to rock upon the supporting shaft 32. Each of the arms 31 has an opposite member 33`carrying a feed pawl 34 pivotally connected to its arm at the upper portion 35 and normally under the vcontrol of yielding means for causing the respective pawls to engage with the heel blank carrier, to be hereinafter described, and permit disengagement of the pawls therefrom. In the present instance, each of the pawls 34 is provided with a rod 36 pivotally connected tothe pawl at 37 and extending loosely through a lug 38 carried by the pawl actuating member. Between the lug 38 and a collar 39 carried by the rod 36, is the spring 40, the construction being such molded cutters to act from opposite 'sides of the path of relative traverse movement and upon opposite sides of the blanks..
In' the present instance ofthe vinvention the carrier for the'heel blanks comprises a series of links 42 and 43 pivotally connected at their end portions at 44 into a flexible endless chain construction. The carrier A thusformed of the flexibly connected members 42 and 43,passes about suitable rotary supporting members 44 and45 mounted for rotative movement upon' the machine frame substantially as indicated in Fig. 1. The rotary supporting members 44 and 45 have fiat peripheral portions, as indicated in Fig. 1, for properly conforming to the links 42, 43, as the supporting members 44 and 45 rotate. The supporting members44 and 45 may be appropriately carried in suitable bearings 46, 47, in the machine frame and in order that the carrier A passing about the supporting 'members 44 and 45 may be properly adjusted to conform the upper .run of the carrier A to its proposed path of movement, the bearings 46, 47 may be adjustablyl mounted' in'the yokes 48, Fig. 1, and adjusting screws50 maybe provided for adjusting the bearings 46 and 47.
The pawls 34, heretofore described, cons titute one convenientform of feeding means for the heel blank carrier- A, and are adapted to engage with lugs or in recesses 51, bestshown in Fig. .10, as the pawls successively move in their operating stroke. The recesses 51 are formed in the under surface of the link membersof the carrier, andthe feed pawls, under the .action of the springs 40, arehenabled toengageand disengage the recesses 51 to feed the `carrier on the loperating stroke of the pawls. Inasmuch as the feed pawls 34 are actuated from the crank arms 22 arranged 180o apart, as hereinbefore described, vit follows that each of the feed pawls will give to the carrier` A a relatively. slow start and finish to its feeding movement, and a relatively high rate of travel between the start and finish. In other words, the carrier A is moved at varying speeds, the purpose of which will more fully hereinafter appear.`
The heel blank carrier A has mounted thereon a series of clamps for securing the Wooden heel blanks in-xed position relative to the carrier as it moves or feeds the from an arm 52, Figs. 4 and 7 and 10, the U overhanging upper end portion of which is provided with a spring actuated clamping member 53 which may be provided with a suitable roughened or toothed engaging surface to securely hold one end of the blank. 'As indicated in Fig. 4, the clamping member 53 is mounted on a pin 54 having the adjustable head portion 55 preferably formed by adjustable nuts, and mounted in the recess of the overhang of the arm 52 and surrounding the pin 54, is a spring 56, the normal tendency of which is to depress or project the clamping member 53.l
Mounted for-sliding movement relative to the link 43 of the carrier isthe lower clamping member 57 to the upper end portion of which is secured a clamping block 5S conveniently securedto the clamping member 57 by suitable means, such as the screw 59. The clamping member 57 .eX- tends through the link 43 and'at its lower end portion has rotatively mounted thereon the roller v60 adapted to engagea trackway 61 mounted on the machine frame below the carrier. The clamping member 57 has guiding connection with the link l43 by means of the winged portions 61X on the y a lug 66 carried by the machine-frame andl .clamping member 57 which embrace a guide in position to be engaged bythe rolls 604 as the carrier is given its feeding movement, and in order that the trackway 61 may be properly positionedfor effecting the clamping action desired between the clamping Amembers 53 and 57, hereinbefore described,
the trackway is adjustably supported at each end-upon the machine frame, as indicated in Fig. l. The adjustment of the trackway 6l may be variously effected, but in the present instance of the invention, an adjusting screw 65, Fig. 1, passes through engages the trackway 61. Such adjusting device may be provided at desired intervals along the trackway, or atv either end, as circumstances may'dictate, the construction being such. that the trackway may be 'properly adjusted to secure the desired clamping action of the heel blanks between the upper and lower clamping members.
It. is sometimes desirable to support the lower run of the carrier-as it passes in its idle position between' the vrotary supports 44 and 45, as indicated in Fig. 1. flo this end a supporting bar or track 67 is adjustably secured to the machine frame below the track 61 and in position to be engaged by the side portions of the carrier A, as indicated in Fig. 2, as the carrier moves in its idle position between the rotating supporting members 44 and 45. The adjustabilityv of the supports 67 may be secured by means similar to' those descrlbed for the trackway 61, as indicated in Figs. 1 and 2.
ln the'present instance of the invention alternate links of the carriers A may be provided with clamps for rigidly securing wooden heel blanks thereto,but, of course, this feature of the invention 'may be variously modified and more or less of the links*- be provided with clamps. yIn any event, however, it is desirable that the clamps may be automatically actuated to clamp the wooden heel blanks as they are presented to the machine,and to automatically unclamp or discharge the finished heels. To this end, the trackway 61, herexinbefore described, is provided with an inclined end portion 68, Figs. 1 and 4, along which the rolls 6() carried by the clamping member 57 act as the carrier moves the clamps towards the cuttingstations.- As hereinbefore stated, the spring actuated plunger 64 normally tends to separate the clamps 53, 57 and, consequently, a. heel blank may be presented between the .clamps 53 and 57 prior to the engagement of the roll 60 of a clamp with the incline 68 of the trackway 61, and, as the roll thereafter moves upward' along the incline 68,. the blank a, Fig. 4, will be automatically clamped and rigidly held in position for the action of the cutters. After the heel has been finished by the operations to be hereinafter described, the heel clamps successively pass from, the end of the trackway 61, thereby permitting the spring actuated plunger 64 to separate the clamp members 53, 57 and automatically discharge the finished heels.
When the blanks are placed between the clamp members 53. 57 they are held in an inclined position relative to the vertical, as indicated in F ig. 4, and in this position are rigidly supported by the carrier as the blanks are moved past the cutting station. Idlereinafterl the 4term heightwise will be employed to designate the dimension of the heel bla-nk vertically between the clamping members 53, 57, it being understood, of course, that the true heightwis'e dimension of a heel is the distance between the tread and heel seat surfaces on a line perpendicular to each.` The above term, however, will be employed in the broader sense, as hereinbefore noted, and constitutes a convenient designationtof position or dimension with intacto respect to which the cuttersl are movable as will hereinafter more fully appear.
The heel blanks, whenl taken by the clamps, are subject to considerable .clamplng pressure which' might, in some instances, tend to liftthe carrier or link` towhich the clamp is connected. The present invention, therefore, contemplates that the carrier A may Vbeplrevented 'from responding to this actlon of the clamp by .confining the carrier to its predetermined path of movement. lin thev present instance the links of the carrier are rovided with outer dove-,tailed portions 69, 91g. 7, whlch underlie overhangmg vportions which may be formed as gibs or guideways on the machine frame. rlhe construction described affords a convenient means for maintaining' the carrier in its predetermined pathl of travel as the clamp; members automatically act to secure a clamp to the carrier and 'hold it as it is moved past the cutting stations, but obviously this teature maybe variously contrived.v v
The number of molded cutters employed may be varied to' suit varying conditions, but in the present instance of the invention two rotary molded cutters are shown, each of Similar construction and mounted for acting, one at each side of the path of movement of the blanks or carrier, to successively treat opposite side and rear portions of they blanks.
Since the character, construction, mounting,
and mode of operation of each of the cutters is the same, a description of one will be suiiioient.
rThe machine frame has its top portion provided with guideways? 1, Figs. 3 and 7, in which is adj ustably mounted' the upright 72 carrying laterally extendin which is pivotally mounted at a the swinging arm 75, on which one of the molded cutters is mounted, as will hereinafter more fully appear.
In order that the upright 72 may be adj usted to position the cutter for proper relation With the blank to be cut as it is fed by the carrier, the base portion of the upright 72 is provided with a lug 76y which is engaged by a threaded adjusting bolt 77 and provided with an operating handle 78. rllhe adjusting bolt has a collaredl portion at each side of a iiXed lug 79 and is, therefore, held from longitudinal movement in the lug but may rotate with respect thereto, with the result that the upright 72 may be adjusted in the guideways 71.
The cutter B is connected to the swinging arm in a manner to be -hereinater'described, but for the present it is sutlicient to note that the cutter B moves with the arm 75 as the latter turns about its pivotal mounting 74 and that the cutter is thus movable laterally with respect to the wooden heel blanks presented b A the carrier as indicated in Figs. 3 and 7. ivotally connected to the arms 73 into swing the arm 75 laterally inward toward Vthe path of movement of the y heel blanks mounted ,on the carrier. To adord proper swinging movement of the rod 81 as the arm 75 swings about its pivot 7 4, the sleeve 82 is connected to the bracket 83 by means of an arml 86, Figs. 3 and 7, having a slot 87 which is engaged by pins 88 extending from the sleeve 82, the construction being such as to permit the sleeve 82 to rock as required by the changing vposition of the rod 81. rlhe 'end 89 of the rod 81 may be provided with screw threads and suitable adj ustin sleeves 90 may be threaded thereto to limit't e movement ofthe rod 81 through the sleeve respon-v sive-to the spring 85.
y As the wooden heel blanks traverse relatively to the cutter B, the present invention contemplates that the cutter shall act along the side of the blankcommencing at thev I' breast corner towardsv the rear of the heel blank, and then move inwardly to or slightly beyond the median rear line oi the heel. As
the next blank in a series approaches the cutter, it is necessary that the latter should be restored to its outer or initial/position in order to again commence its above described operation along the heel blank. A bracket 91, Figs. 7 and 8, -iS secured to the arm 75 by a bolt or other fastening means 92, Fig. 8, and is adjustable laterally ofthe arm 75 by means of the adjusting screw 93, the construction being such that by loosening the securing means 92, the bracket 91, Fig. 8, may be laterally adjusted and then clamped Yin adjusted position. rllhe bracket 91 projects laterally at 94 and to such lateral projection of the bracket there is adjustably secured an arm l95, carrying a stud or roller 96 which, in connection with means to be described, serves to determine the lateral position of the cutter B. The arm may be secured adjustably .to the bracket 91 by Y suitable means such as ythe adjusting screw 97, Fig. 7, threaded to a lug 98 on the projection 9a oi the bracket and mounted to turn in, but restrained from longitudinal movement with respect to, a lug 99 carried by the bracket 95, the construction being such that by manipulation of the adjusting screw 97 the position of the roller 96 maybe changed relative to the cutter B.
A templet 109 is mounted on the carrier adjacent each ot the heel blank clamps as indicated in Fig. 7, and along the templet the roll 96 travels as the carrier moves the templet and adjacent heel blank in its path of travel'past the cutter. rThe trailing portion of the temnlet 100 is curved, as indicated pulse of the spring 85 as the blank'moves switches 'are of fthe. samel construction ltion being such that as the roller 96 travels relatively to the cutter, the effect being to causethe cutter to act along the side of the blank from the breast corner towards the rear andthen to move inwardly to or beyond the median line at the back of the blank.
` To move the cutter outwardly again after completing its operation upon a blank,H
means are provided to act upon the roller 96 to move the arm 7 5v and the connected cutter intoits outward or initial position. In the present instance of the invention such means comprise members 101, which, 'forV identification, vmayv be herein Areferred to as switches, one beinglocated adjacent'. each of the clamps on the carrler. Slnce these throughout and act in thel same manner in the performance of their functions,- aV description of one will be ysuilicient. switch 101 Fig. 7 .is pivotally mountedat 102 upon the' carrier andhas Ja biurcated.
trailing end portion embracing the. arm 52 of the clamp lto thereby limit swinging movement about' its pivot. The switch v101 has a of the next preceding templet, theconstruci along the templet to its trailing end lportion acting upon the roller 96 as the carrier travand moves inwardly to carry the cutter about the rear of the blank, it engages the end por-v tion 103 of the succeeding switch which thereby acts as a stop to limit the lateral inward movement of the cutter, and thereafter the inclined edge portion of tlie switch,
erses the blank relative to the cutter, causes the roller 96 to be moved laterally outward and, perforce, to similiarl move the `cutter into itsinitial outward position to commence its next cut upon the following blank at the breast corner'thereof as the vtemplet again takes charge of the lateral movement of the cutter.
As indicated in Fig. 11, it is desirable that the lateral movement of the cutter about the rear of the blank shall be suflicient to reach or passslightly beyond the rear median line of the heel blank in order to insure the complete inish of the rear portion or' the heel as the successive cutters act along and about the heel. A I Heretofore reference has been made to the variation in the speed of travel ofthe carrier during the action of the cutters uponl the heel blank, and suitable means to this end has also been described. This variation 1n speed, and the action of the cutter upon the heel as it travels along the side and about the rear thereof, is graphically represented 1n Fig. 11 wherein the relative traverse of the cutter and heel, as the cutter acts `along The tween the points c, d, and relatively slow between the points d and e as the cutter movesp about the rear of the heel crosswise of the grain.' In other words, in a unit of-time the cutter will move along the side'b of the heel a distance c, d, whereas, while cutting around the rear portion ofthe Aheel crosswise of the grain, the cutter'will move in the same unit ottime the distance ,d, thereby insuring proper surface inishto both the side and rear portions of the heel. f
- In 'Fig'. 11 the axis 104 kaboutvwhch the vroller 96'andfthe cutter B rotate, are indicated asin alignment and such relation of the axes ofthe roller 96 and the cutter is desirable in some forms of heels. By the adjustment of the roller 96 to carr the axis thereof into different relations wit the axls 4of the cutter, 'the same machine is adapted to produce heels wider at the breast-'and leading end portion 103 whlch extends forwardly adjacent the rounded end portion more flat at the rear portion as theroller 96 travels along the templet 100.
In Fig. 13 the axis of the roller 96 is indicated. as having been adjusted forward of the axis of the cutter B so that as the roller 96 -travels along the templet 100 in the manner hereinbefore described, the breast width of the heel mayl remain thel same as when the'axis of the 4roller 96 and thecutter B are in alignment, but as the cutter moves about the rear portion of the vheel a greater fullness yor rear duced.
the cutter B shall notonly have the characteristicv lateral movement hereinbefore descrlbed, butthat it may be tilted and moved -vertically as it passes along vand about the heel and one convenient form of means to 'these ends will now be described.
' Mounted for sliding movement in the arm 75 is the cutter pivot carrying frame 105 provided with an upwardly extending arm 106 carrying a roller 107 adapted to move in -a trackway 108 as the arm 75 is laterally` form of pivotal connection consists of a pin 111 onl the frame 105 which engages an.
opening 112 at the lower part of the swingextension of the heel'is pro-f 105` The present, invention contemplates that a iaiaeio .with the pivot as a center, and bolts 115v serve to guide the swinging :trame 110 as it moves about its pivotal axis.
rFhe cutter B is mounted on a'shaft 116,-
Fig. 8, held in suitable bearings 117 carried by a frame 118. The shaft 116 of the cutter passes through a motor 119 which may be secured to the frame 118 by suitable means, such as the bolts 120. rl`he motor 119 may be of the usual electric type serving to impart to the cutter shaft and cutter, rotary motion. The frame 118 is adjustably mounted on the swinging trame 110 by means of securing bolts 121, and may be adjusted verticallywith respect thereto by means of an adjusting device which, in the present instance of the invention, comprises an adjusting screw 122, Fig.l8, mounted for rotary movement in an arm 123 and threaded into projections from the upper bearing 117 of the frame 118, the construction being such that by loosening the bolts 121, and manipulation of the adjusting screw 122, the cutter carrying frame 118 may be adjusted to move the cutter upward, or downward relative to its pivotal axis. From the construction described, it will be apparent that the axis about which the cutter Bv tilts, passes transversely of the cutter and that the cutter may 'be vertically adjusted by hand to place the axis in different vertical relation thereto.
rlhe means for automatically tilting the cutter about its axis as it operates upon a heel blank, may be variously contrived, but in the present instance of the invention comprises an arm 124, Fig. 7, pivotally mounted l the clamp screws 129, Fig. 7.
rllhe arm 124 has secured thereto the upwardly extending arm 130, Fig. 7, connected at its upper end portion to a link 131 jointed to the-swinging frame 110 at 132,v the construction being such that as the roller 126 is moved by the passing cams or patterns 127 on the carrier, the swinging' trame 110, and, perforce, the cutter and motor carried thereby, will be moved about the pivotal axis 111. The roller 126 may be maintained in operative relation with its cams or patterns 127 by suitable means which, in the present instance of the invention, consists ot a spring 133, Fig. 7, encircling a rod 134 which passes through a swivel block 135 mounted on one of the arms 73, the other end of the rod 134 being pivotally connected to the arm 130 at- 136, the construction being such that the spring 133 normally tendsto depress l,the roller 126 into contact with its cooperating cams or patterns 127. rl`he link 131 may be made adjustable in length byl means .of a reverses crew turn-buckle 137.
'llhejtrackway 108 in which the4 roller 107 travels, ismounted upon a slide 138, Figs. 1 and 7, guided bysuitable dove-tailed bearings 139 formed in' the uprights 140 risingfrom the mac'hine frame.
The' slide 138 is connected to a lower slide 141 by an adjusting screw l142 which may be appropriately turned by vhand .for relaf tively adjustingthe slides 138 and 141 by means of a handleor crank arm 143.
rlhe slide 141, which, as describedkis vertically'movable in the frame .140, is provided at its lower end with a roller 144, Figs. 1 and 7, which rides upon cams or patterns 145 mounted on the carrierA, the construction being such that as the carrier is moved to feed the blanks to the cutters, the roller 144 will` ride upon the cams or patterns 145 and raise or lower the cutter through the connections described to vary its position heightwise of the blank being treated.
inasmuch as the carrier A is formed of link members flexibly connected together, and carries the cams or pattern devices for controlling the tilting and vertical movement of the cutter, the cam or pattern devices 127, 145, are formed in sections corresponding to the link members which carry them and are preferably connected thereto detachably by means of cap plates 146, Fig. 7, the construction being such that the cams or patterns maybe readily removed and replaced by others to change the tilting and vertical movements of the cutters as pre- .superposed views taken at right angles.
The full line figure is taken with the line vof sight parallel to the direction of feed;
the dotted line gure is taken with the line orIl sight perpendicular to the direction of feed. ln the dotted figure the point f is the projection ci the axis of tilt through the angle it, z'. (This is the axis 111); and in the full line figure the point f is a point of that axis which would extend across the paper parallel to the word ln'ventor, if it were drawn in. Assuming that the axis about whichv the cutter tilts is at f, Fig. 6,
arrows at h and the heightwise or lifting movement of the cutter is indicated by the arrows vl, Fig. 6, the effect being, in the present assumed instance, to produce a fulll ness at the rear portion of the heel leading scribed as a to the heel seat, as indicatedby dotted lines at g, Fig. 6.
By shifting the axis of tilt relative -to the cutter, the variation in heel shapes produced by the action of the cutters on the heel blank, 4may be indefinitely varied. Likewise, either by changeof cams or patterns, or by adjustment of the roller 126, for effecting the tilting action of the' cutter, its degree andtime of tilting action may be indefinitely varied and the machine hereinv deood practical form of the present inventlon, be adapted for the formation of wooden heels of greatly varying styles and shapes.
It will be noticed that the cutter head is I shown as of considerably greater vertical depth than the heel. This enables different portions of the cutter 'to be used at different' parts of the heel periphery and permits the. cutter, therefore, by virtue of the vertical shift, to combine different curves required in the peripheral surface at the breast and at the 4rear of the heel.
Having described my invention, what I claim as new and desire to secure by lLetters Patent of the United States is 1. In a machine for making wooden heels forboots and shoes, the combination of a carrier for supporting and feeding wooden heel blanks, rotary molded cutters mounted to act upon a blank from breast to rear at opposite sides of the feeding path as the blank is fed by the carrier, and means for changing the angular relation of the cutters to the heightwise dimension of a heel blank during the operation of the cutters. b
2. In a machine for making wooden heels for boots and shoes, the combination of a carrier for supporting and feeding heel blanks, rotary molded cutters mounted to act one at each side ofthe feeding path, and means for tilting the cutters in the direction of feed as they act progressively along the heel blank from breast to rear.
3. In a machine for making wooden heels for boots and shoes, the combination of a carrier for supporting and feeding heel 4, In a machine for making wooden heels,
for boots and shoes, the combination of'a carrier for supporting and feeding heel blanks, rotary molded cutters mounted to act one at each side of the feeding path, and
means for automatically moving the cutters in a direction towards the longitudinalmedian plane of the heel blank and heightwise of the blank as the cutters progressively act along the blank.
5. In a machine for. making wooden heels for boots and shoes, the combinationof a carrier for supporting and feeding heel blanks, rotary molded cutters mounted to act one at each side of the feeding path, and means for bodily moving the cutters in a Yplurality of directionsas they progressively act from breast to rear along the blank.
6. In a machine for 'making wooden heels for boots. and shoes, the combination of a carrier, meansfor securing wooden heel blanks onvthe carrier, means for movingthe carrier in a predetermined path, rotarymolded cutters arranged to act successively upon vopposite sides of a blank as it is moved by the carrier, and means for automatically changing the positions of the rotary cutters in a plurahty of directions at each side of the predetermined path as they act successively upon opposite sides of a blank. 7 In a machine for making wooden heels for boots and shoes, the combination of a carrier for heel blanks, rotary molded cutters mounted to act at each side of the path of movement of blanks as they are presented by the carrier, and means for moving therotary molded cutters arranged -to act upon opposite sides of the heel blanks while held in fixed positions relative to the carrier, and
'means for tilting the cutters toward parallelism with the back of the heel as they act along the blank.
9. In a machine for making wooden heels for boots and shoes, the combination of a heel carrier having'I provisions for securing heel blanks in fixed position thereon, rotary cutters arranged at each side of the path of movement of the heel blanks as they are fed along by the carrier and to act on oppositey sides of the heels, and means for automatically changing the position of the cutters in' -directions towards and from and heightwise 10. In a machine for making wooden heels for boots and shoes, the combination of a carrier for presenting heel blanks to be treated, clampsfor securing the blanks in fixed position on the carrier, rotary cutters arranged to act one at each side of the path of movement of blanks presented by the carrier, and means for changing the horizontal; vertical, and angular posltions of the cutters as they act along a heel blank.v
1l. In a machine for making wooden heels for boots and shoes, the combination of a carrier for presenting heel blanks Jfor treatment, rotary cutters mounted to act upon opposite sides of the heel blanks as they are moved past the cutters by the carrier, andmeans for automatically changing the horizontal, 4vertical and angular positions of the cutters as they act along a blank from breast to rear thereof.
12. In a machine of the class described, the combination of a carrier, means for moving the carrier in a predetermined path to continuously present heel blanks for treatment, cutters mounted to act upon opposite sides of heel blanks as thelatter move with the carrier in the predetermined path past the cutters, and means for automatically moving the cut-ters into different vertical, horizontal and angular positions -relative to a heel blank asthey act along the blank.
13. In a machine of the class described, the combination of a carrier, means .for se'- curing wooden heel blanks rigidly on thecarrier, means lfor feeding the carrier to present the heel blanks for' treatment, a cut- 4ter arranged at each side of the path of movement or the heel blanks as they are fed by the carrier and acting on opposite sides of the blanks, and patternmeans acting automatically during the operation of the cutters upon a blank to move the cutters into different angular and heightwise positions relatively to the blank.
14. Ina machine of the class described, the combination of a carrier, means forsecuring wooden heel blanksvrigidly on the carrier, means for feedingv the -carrier to present the heel blanks for treatment, a cutter arranged at each .side of the'path of movement of the heelv'blanks as they are fed by the carrier and acting on opposite sides of the blanks, and pattern means acting automatically during the operation of the cuttersupon a blank to move the cutters sidewise relative to the blank, heightwise of the blank, and angularly relative to the a blank as it is fed by the carrier, pattern means movable with the carrier to control the lateral position of the cutters as they act upon the blank, and pattern means movable with the carrier to control the position of the cuttersA heightwise of the blank.
16. In a machine for making wooden heels for boots andshoes, the combination of a carrier for supporting and feeding blanks, cutters arranged at opposite sides of the feeding path to act upon opposite sides of a blank as it is fed by the carrier, and patv tern means movable with the carrier to control the sidewise and angular position of the cutters relative tothe blank.
17'. In a machine for making wooden heels for boots and shoes, the combinationof a carrier for supporting and feeding blanks, cutters arranged at opposite sides of the feeding path to Vact upon opposite sides of-a blank as it is fed by the carrier, and pattern means movable coincidently with the carrier for moving the cutters heightwise as they 'act along a blank.
18. In a machine for making wooden heels `for boots and shoes, the combination of means for supporting and presenting heel blanks for treatment, two molded cutters arranged to act upon opposite sides of al blank from breast to rear, and pattern means acting to control the lateral, height, and angular position of the cutters `as they operate upon the blank.
19. In a machine of the class described, the combination of means for' supporting and presenting heel blanks for treatment, two moldedcutters arranged to act upon opposite sides of a blank from breast to rear, a
pivotal support for each cutter, and means for'swinging the cutters about their pivotal supports as they act along a blank,- there being 'provision forv adjustment between the cutters and the swinging means to effect proper timing between the cutter and the work.
20. In a machine of the class described, the
combination of means for supporting and presenting heel blanks for treatment, two
molded cutters arranged to act upon opposite' sides of a blank from breast to rear, and
means for tilting each cutter about an axis passing transversely through the cutter as it operates upon a blank.
21. In a machine 'of the class described, the combination of means for supporting and presenting heel blanks for treatment, two
molded cutters arranged to act upon opposite sides of a blank from breast to rear,
means for tilting each cutter about an axis i passing transversely through -the cutter as .1t operates upon the blank, and means for presenting heel blanks for treatment, two molded cutters arranged to act upon opposite sides of a blank from breast to rear, and means acting automatically to tilt the cutters about an axis passing transversely of the respective cutter axes as they operate upona blank. j 'l l 23. In a machine of the class described,
the combination of means for supporting and presenting heel blanks for treatment, two molded cutters arranged to act upon opposides of a blank from breast to rear, means acting automatically to tilt the cutters about an axis passing transversely of the respective cutter axes as they operate upon a blank, and means for automatically changing the positions of the resp'ective axes relative to the blank during the operation of the cutters.
24. In a machine of the class-described, the combination of means for supporting and presenting heel blanks for treatment,
' two molded cutters arranged to act upon opposite sides of a blank from breast to rear, means for tilting the cutters about an axis passing transversely through the respective cutters as they operate upon a blank, and means for `relatively adjusting the axis and respective cutters to place the axis in different positions between the ends of the cutters. U
25.7In a machine of the class described,
l the combination of means for supporting 4and presenting heel blanks for treatment,
two molded cutters arranged to act upon opposite sides of'a blank from breast to rear, means for automatically tilting the cutters,
and means for automatically moving the cutters in a direction heightwise of the blank Aas they act alon the blank.
26. In a mac ine of the class described, the combination of means for supporting and presenting heel blanks for treatment,
.two 'molded cutters arranged to act upon opposite sides of a blank from breast to rear,
means for automatically tilting each cutterv aboutan axis extending transversely of the respective cutter axes, lmeans for relatively adjusting each cutterand its tilting axis in a direction lengthwise of thel cutter, and means for automatically moving the cutters heightwise ofthe blank as the cutters operate upon'a blank.
for boots and shoes, the combination of means for su porting wooden heel blanks, rotary molded). cutters, means for relatively. moving the supporting means and cutters to cause the cutters to'act successively upon the blanks at opposite sidesl of the path of relative movement, and means for causing'the cutters to successively move to the median longitudinal vertical plane at the rear of the blank as the cutters and blank are relatively moved ast each other.
29. In a mac inefor making wooden heels for boots andV shoes, the combination of a carrier for supporting and feeding wooden heel-blanks,`rotary molded cutters arranged to act successively upon a blank from breast to rear at opposite sides of the feeding path as the blank is fed by the carrier, and means for causing the cutters to successively move to the longitudinal median plane vertically of the blank as the blank is fed past the cutters.
30. In a machine for making wooden heels for boots and shoes, the combination of a carrier for supporting and feeding wooden heel blanks, rotary molded cutters arranged to act successively upon a blank from breast to rear and about the rear at opposite sides of the feeding path as the blank is fed by the carrier, and means for varying the speed of the carrier to cause the cutters to-travel over the heel blank more slowly as the cutters 'pass about the rear of the'blank transversely of thegrain of the wood.
31. In amachine for making wooden heels for boots and shoes, the combination of means for supporting wooden heel blanks for treatment, rotary molded cutters mounted to act one along each side of the blanks, and
means yfor relatively moving the cutters and heel blanks to traverse the cutters along the heel blanks from breast to rear and about the rear and for causing the traverse to be relatlively fast along the side of the blank while cutting with the grain andrrelatively slow as the cutters move about the rear of the heel blanks crosswise of the grain.
32. In a machine for making wooden heels for boots and shoes, the combination of means for supporting wooden heel blanks for treatment, rotary molded cutters mounted to act one along each side of the blanks, means for moving the cutters laterally to wards the centre of the heel blank at the rear thereof, and means for relatively traversing the cutters and blanks at a predetermined speed along the side of the blanks while cutting with the grain and at a decreased speed as the cutters act about the rear of the heel cross-wise of the grain. y
33. In a machine for making wooden heels for boots and shoes, the combination of meansl for supporting wooden heel blanks for treatment, rotary molded cutters mounted to act along oppositeA sides of heel blanks as the blanks and cutters are relatively tra-versed, templet controlled means for causing the cutters to move laterally about the'rear of the heel blanks as the blank and cutters are relatively traversed, and means for limiting the lateral movement of the cutters and acting as the cutters and blanks are relatively traversed to restore the cutters to the position for commencing the next cut at the breast corner of a heel blank.
34. In a machine of the class described, the combination of a carrier for supporting and presenting wooden heel blanks for treatment, molded cutters mounted to act along opposite sides of the blank-on the carrier` means for moving the cutters laterally about the rear end of the blank, a templet for controlling the path of lateral movement of the cutters, and a second templet for moving the cutters laterally outward in position to start operation on another blank at the breast corners.
35. In a machine of the class described, the combination of a carrier. for supporting and presenting wooden heel blanks for treatment, molded cutters mounted to act along opposite sides of the blank on the carrier, y means for moving the cutters laterally aboutL the yrear end of the blank, a vtemplet for controlling the' path of lateral movement of the cutters, and switch means acting as the carrier and cutters are relatively moved to restore the cutters laterally to outward position.
36. In a machine for making wooden heels forboots and. shoes, the combination of a carrier comprising a series'of flexibly con- "nected link members provided with means for'holding heel blanks, means for feeding the carrier to present the heel blanks for treatment, molded cutters supported to act on opposite sides of the blanks as they are fed along by the carrier past the cutters, and means for changing the lateral and vertical position of the cutters as they operate along the 'heel blanks. v
37. In a. machine for making wooden heels forA boots and.shoes,.the combination of a carrier comprising a series of-flexibly connectedlink members provided with means for holding heel blanks, means for feeding the carrier to present the heel blanks for treatment, molded cutters supported to act on opposite sides of the blanks as they are fed along by the carrier past the cutters, means for moving the cutters laterally about the rear of the Vblanks as they are fed alongY y by the carrier, a templet movable with the carrier and controlling the lateral movement of the cutters, and means for restoring the.
cutters tov outward position that they may commence operation on a succeeding blank at the breast corners. 4
38. In a machine for making wooden heels for boots and shoes, the combina 'or. of a heel blank carrier, two rotary molded cutters to act one on each side of a heel blank, mea-ns for moving the carrier to feed heel blanks to the action of the molded cutters, means for moving the cutter laterally inward relative to the blank being treated 4to cause the cutters to move about the rear of the blank, a templet movable with the carrier for controlling the inward movement of the cutters, and a switch mounted on the carrier and acting as the carrier is moved to restore the cutters to initial position.
39. In a machine for making wooden heels for boots and shoes, the combination of a heel blank carrier,` two rotary molded cutters to act one on each side of a heel blank, means for moving the carrier to feed a heel blank to the action of the molded cutters, means for moving the cutter laterally inward relative to the blank being treated to cause the cutters to move about the rear of the blank, a templet movable with the carrier for controlling the inward movement of the cutters, and a switch member pivotally supported on the carrier and acting as the carrier is moved to restore the cutters to initial position.
40. In a machine for making wooden heels for boots and shoes, the combination of a heel blank carrier, two rotary molded cutters to act one on each side of a heel blank, means for moving the carrier to .feed a heel blank to the action of the molded cutters, means for moving the cutter laterally inward relative to the blank being treated to 100 cause the cutters to move about the rear of the blank, a templet movable with the carrier for controlling the inward movement of the cutters, and a pivoted-switch member having a portion to limit the inward move- 105 ment of the cutters about the rear of the blank and acting as the carrier is moved to restore the cutters to initial position.
4l. In a machine for making wooden heels for boots and shoes, the combination of a 110 flexible heel blank carrier, means for moving the flexible heel blank carrier to feed blanks, a pair of molded cutters one of which is arranged to act along a heel blank vfrom one side of its feeding path and the other of which is arranged to act along a heel blank from the opposite side of its feeding path, means for moving the cutters laterally inward about the rear of the heel blank being treated, a templet for controlling the inward movement of the cutter, and a switch member having a part to limit the inward movement of the cutters as they pass about the rear of a heel blank and acting as the carrier is fed to restore the cutters to initial outward position.
42. In a machine for making wooden heels for boots and shoes, the combination of a flexible heel blank carrier, means for moving the flexible heel blank carrier to feed 130 blanks, va pair of molded cutters one of which is arranged to act along a heel blank from one side of its feeding path and the other of which is arranged to act along a heel blank from the opposite side of its feeding path, means for vmoving the cuttersv laterally inward about the rear of the heel blank being treated, a templet for controllin the inward movement of the cutter, and a pivoted switch mounted on the carrier and acting to limitv the inward movement of the cutters and to restore the cutters to their outward position that they may commence operation onanother blank at the breast corners.
43. In a machine for makin wooden heels for boots and shoes, the com ination of a carrier provided with supports for securing for treatment, cutters mounted toact upon a blank one at each side of the feeding path, and means comprising a cam for automatically clamping a blank presented to the carrier for treatment and automatically unclamping the finished blank as the carrier is fed.
45. In a machine for making wooden heels.
for boots and shoes, the combination'of a heel blank carrier provided with clamps for y securing blanks thereto, rotary cutters arranged to act uponopposite sides ofl blanks as they are fed by the carrier, and means acting automaticall for operating the "clamps as the carrler is fed to secure a charging the finished blanks.
blank to the carrier and automatically re-` lease a linished blank.
.46. In a machine for making wooden heels forgboots and shoes, the combination 0f a carrier formed of a series of pivotally connected links, means for securing blanks to the links ofthe carrier for treatment, means for moving the carrier to feed the blanks in a rectilinear path, cutters arranged to actone at each side of the feeding path of the blanks, and means for automatically dis- 47. In amachine for makin wooden heels for boots and shoes, the com ination of a carrier formed of a series of pivotally connected links, a clamp for securing blanks' to the links of the carrier for treatment, means fOr moving the carrier to feed the blanks in a rectilinear path, molded cutters arranged to act one ateach sideof the feeding path of the blanks, and means for moving the cut-y ters vertically, horizontally, and angularly as the blanks are traversed past the cutters.
48. In a machine for making wooden heels for boots and shoes, the combination of a heel blank carrier formed of a series of connected links, clamps for holding heel blanks mounted on some of said links, means for feeding the blank carrier, rotary molded cutters arranged to act one vfrom each side of the feeding path of the blanks, and cam operated means for tiltin the cutters and changing their lateral an vertical position as they act upon blanks fed past them by the carrier.
49. In a machine for making wooden heels for boots and shoes, kthe combination of a heel blank carrier formed of a series of connected links, clamps for holding heel blanks mounted on some of said links, means for feeding thel blank carrier, rotary molded cutters arranged to act one from each'side of the feeding path of the blanks, meansfor moving the cutters laterally inward about the end of a blank as it is fed along by the carrier, templets mounted on the links of l the carrier to control the inward movement of the cutters, and switches for limiting the extent of inward movement of the cutters and for restoring the cutters to their outward position.
50. In a machine for making wooden heels l arranged to act at each side of a blank heldyin a clamp of the carrier, means for feeding the carrier to traverse theJ clamped blank in a rectilinear path between the molding 'cutters, and independent cams and connections for automatically changing the positionv of each cutter in a plurality of respects as the blank is fed past them. 51. In a machine of the class described, the combination of means for holding 'and feed-` ing blanks, rotary cuttersarranged vto act successively upon the blanks at opposite sides ofthe path of feed movement, means tending to move each cutter laterally inward as itv passes the rear of the blanks, and means for controlling the` lateral inward movement of the cutters and permitting them to successively pass the centre of the heel blank at the rear thereof.
52. In a machine for making wooden heels for boots and shoes, the combination of a heel blank carrier for supporting heel blanks and feedingthem for treatment, and rotary cutters mounted to act successively upon -the heel blanks from opposite sides of the path of feeding movement around to their rear as they are moved by said carrier, whereby lthe operative positions of the cutters may overlap without physical interference;
- rotary molding cutters arranged to act on opposite sides of the blanks as they move along with thel carrier, and a cam and connection for shifting the angular and vertical position of the cutters as they operate on a blank.
55. In a machine for making Wooden heels,
the combination of means for presenting heel blanks for treatment, cutters mounted to act and presentingv heel blanks for treatment, ro-
tary molded cutters arranged to act along the sides of the heel blanks at opposite sides of the relative traversing movement of the blanks and cutters, a inotor for each cutter, and means for automatically tilting the cutters and motors as the cutters act along the heel.
57. ln a machine for ma tary the sides of the heel blanks at opposite sides of the relative traversing movement of the blanks and cutters, means for determining the lateral position of the cutters as they act `upon a heel blank, means for relatively adjustinglthe determiningmeans and cutters to vary t e action of the cutters uponthe heel blanks, and means for automatically tilting the cutters as they and the blanks are relatively traversed.
58. ln a machine for making wooden heels for boots and shoes, the combination of a carrier for supporting and feeding wooden heel blanks, and rotary molded cutters mounted to act upon a blank from breast to the central rear portion at opposite sides of the feeding path as the blank is fed' by the carrier. t
59. In a machine for making wooden heels for boots and shoes, a carrier having means for securmg blanks to 1t, means for movlng` the carrier to feed the blanks in a rectilinear path, and a cutting instrumentality arranged on each side of the path constructed and arranged to feed along and around the ends of the blanks. v
60. In a machine for making Wooden heels forboots and shoes, an endless carrier havf lng means for securlng blanks to it, meansfor moving the carrier to feed the blanks 'A in a rectilinear path, and a cutting instrumentality arranged on each side of the path constructed and arranged to feed along and `around the ends of the blanks.
61. In a machine of the class described,
a carrier for supporting and feeding blanks, I
With a movement of translation, and a rota cutter mounted to act adjacent to the fe -v in a plane perpendicular to the' line of feed.
62. In a machine of the class described, a carrier for supporting and feeding blanks, and a rotary cutter mounted to act adjacent to the feeding ath, said mounting compris'- ing joint mec anism constructed and arranged to permit the cutter to have a horizontal and vertical movement in a plane perpendicular to the line of feed and a rotational movement about an axis transverse to the cutter.
63. In a machine of the class described, a carrier for supporting and feeding blanks, and a rotary cutter mounted to act adjacent to the feeding path, said mounting comprising joint mechanism constructed and aring and vertical movement in a plane perpendicular to the line of feed and a rotal tional movement about an 'axis transverse to Wooden heels, the combination of a carrier or supportingand presenting heel blanks for treatment, romolded cutters arranged to act along the cutter, and cam operated mechanism for determiningv the said movements.
64. In a machine of the class described, a carrier forsupporting and feeding blanks,
Aand a rotary cutter mounted tovact adjacent carrier for supporting and feedino' blanks,
a rotary cutter head stationed adjacent to the feeding path, a carrier (105) for the cutter, an arm (75) .carrying the carrier and the .cutter head and carrier, carrier and arm,
and arm-and frame, said joint mechanism being arranged to produce movement comprlsed among rotational, vertical and horizontal movements, respectively, of the cutter head.
66. In a machine of the class described, a carrier for supporting and feeding blanks, a rotary cutter head stationed adjacent to the' feeding path, a carrier (105) forthe cutter; an arm (7 5) carrying the carrier and mounted on the main machine frame, there beingjoint mechanism located in one or more of the following named positions, viz.,
between the cutter head and carrier, carrier and arm, and arm and frame, sald Joint mechanism being arranged to produce movement comprised among rotational, vertical and horizontal movements, of -the cutter head, and cam and follower mechanism between the main frame and the cutter head for controlling the said oint mechanism, in
LELAND B. WHIPPLE.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631621A (en) * 1951-01-23 1953-03-17 Vulcan Corp Automatic machine for turning wood heels
US2864412A (en) * 1954-11-05 1958-12-16 Fred W Mears Heel Company Inc Machine for trimming wood heel-blanks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631621A (en) * 1951-01-23 1953-03-17 Vulcan Corp Automatic machine for turning wood heels
US2864412A (en) * 1954-11-05 1958-12-16 Fred W Mears Heel Company Inc Machine for trimming wood heel-blanks

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