US1275490A - Machine for operating on heels. - Google Patents

Description

I 1. F. smumsm MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED OCT-4| 19l5.

I Patented Aug. 13, 1918.

3 SHEETS-SHEET I.

r mum arms mupnmumuu \vuumumn. n. c.

J. F. STANDISH.

MACHINE FOR OPERATINGDN HEELS.

APPLICATION FILE!) OCT- 4, l9l5.

Patented Aug. 13, 1918.

3 SHEETS-SHEET 2.

Fig. 5.

'1. F STANDISH.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED OCT-4.1915.

1,275,490. Patehted Aug. 13, 191&

3 SHEETS- -SHEET 3- Figll. v awa m 4 'more combined heel parts.

UNITED STATES PATENT OFFICE.

JOHN F. STANDISI-L- OF WINTHBOP, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY GORPORATIQN, Q13 IPATERSON, NEW JERSEY,

A CORPORATION on NEW JERSEY.

MACHINE FOR OPERATING 0N HEELS.

Patented A11 13, 1918.

' Application filed October 4, 1915. Serial No. 53,948.

To all whom it may concern: 7

Be it known that I, JOHN F. STANDIsH, a citizen of the United States, residing at Winthrop, in the county of Essex and State ofMa'ssachusetts,have invented certain Improvements in-Machines for Operating on Heels, of which the following descriptiom'in connection with the accompanying drawings, is a specification, likereference characters on the drawingsindicating like parts in the several figures.

This invention relates to machines for operating on heels and is herein shown as embodied in a machine for attaching a heel comprising two sections, one of leather and the other of rubber.

In manufacturing shoes having rubber. heels it is the practice to attach to theheel seat portion of the sole a leather or leatherboardsection or deck which is comparatively incompressible and then, as a separate operation, to attachto the deck the rubber sec tion which, of course, is compressible to a.

great degree. 7 The first attaching operation is performed by driving nails through the leather deck into the sole and the second at-' taching operation is performed by driving nails through the rubber section into the previously attached deck. In the second operation the heads of the attaching nails are forced well beneath-the outer or tread press the leather deck upon the outsole will be much less than that required to eXert any considerable pressure upon the combined leather and rubber sections. An object of the present invention is to provide a machine by the use of which'heel parts or sec tions of dissimilar character may be operated upon in such manner as to give-the best results in all Cases. To thls end an important feature-of the invention consists 1n cooperating work pressing members, such asa jack and die plate, and power driven mechanism for moving one of the members through a predetermined distance to press one part of a heel and then automatically througha greater distance to press two or operator to start the machine with a leather deck in operative position and when. the

work pressing mechanism was set for its longer movement which is designed for pressing the combined leather and rubber parts. -Under these circumstances an abnormally high pressure would be developed which would be destructive either to the last or to the machine itself- With these conditions in view another feature of the -invention'consists in means for insuring that the leather heel part alone shall not be subjected to the greater movement of the pressing member. As herein shown this is brought about by providing means which prevent the presentation of the leather deck in operative position when the pressing mechanism is set for the greater pressure movement. 7

Other' features of the invention relate to the jack upon which the shoe is supported in the machine. It will be apparent-that the thickness of the work to be operated upon I 7 sate for this difference the jack herein shown is made adjustable in its height by a predetermined amount and convenient means are provided for efiecting such adjustment.

These and other features'of the invention .will bebest understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which,

Figure 1 is a view 111 perspective of a machine embodying the invention; Figs. 2', Sand 1 are detail views of the pressure regulating mechanism;

Fig. 5 is a view of the machine in front elevation showing the work with pressure applied thereto;

Fig. 6 is a view in perspective of the holder for'the heel parts to be attached;

'Fig. 7 isa sectional view'showing the position of the leather deck and rubber section i I 7 prior to the operation of attaching the latter;

Fig. 9 is a sectional view showing the jack in a different position from Fig. 8;

Fig. 10 is a detail view of the gage slide, and

Fig. 11 shows a portion of a shoe with a leather deck and rubber heel section attached.

The invention is herein illustrated as embodied in the well known lightning nailing machine although itwvill be apparent that its application is in no sense limited to that or to any other particular machine.

The machine frame 2 carries at its upper end a stationary die plate -lprovided with passages for the drivers 20. At a point beneath the die plate 4 the frame carries a stationary abutment or support 6 upon which rests the movable jack carriage:

support 8. The support 8 is arranged to slide vertically in ways formed, partly in the machine 'frame and. partly gibs 10. carriage 12. which is arranged to slide in the ways above the support 8 and is maintained in position above the support by a.

quick screw 30 which rests at its lowerend upon the support. T he ack carriage 12 is provided with substantially horizontal ways for the reception of a jack 14 which is provided with an adjustable heel post ,92 .and a toe post '95. The shoe to be operated upon is placed upon the jack and the variousheel parts are introduced beneath the die plate 4.

The machine frame is provided with vertical bearings in which reciprocate a pair of side rods 16 carrying atltheir upper ends a cross head 18 upon whichthe drivers 20. are

mounted and beingconnected at their lower ends to a cross head. 22 to which movement is imparted from the machine shaft through an eccentric 24.

The jack is arranged to be elevated by the operator to subject theworkto a measuring pressure prelimlnarily to-the power operation of the machine. To this end the quickserew 30 is provided at its lower end with an elongated pinion arranged to mesh with a rack .32. The rack is connected to; a

bell crank'lever 84 pivoted upon a stud 35 setin the stationary, abutment 6 and connected through a link :36 to a treadle 38.

l/Vhen the treadle is depressed by :the operator the rack is moved toward the left (Figs. 1 and 5) andthe screw 30-is turned so as to elevate the jack carriage with respectto the jack carriage support 8. The measuring mechanism herein shown is arranged for manual operation and: it is immaterial from the standpoint of the present invention whether such mechanism is manually or mechanically actuated.

'A pai1'=.of- eccentric cams 42 and 46 are journaled respectively in the movablesup- I eport 8 and'thestationary abutment 6 and are arranged-to be oscillated bythe power of by The support 8 carries the jack the machine toelevate the support 8 and all the parts abovethe support in order to subject the work, after the measuring operation, to'an increased pressure. The cam 46 is secured to: a horizontallylextending shaft 43 journaled in'the stationary abutment 6 and connected at its rear end to a lever 45 to which motion is imparted from the left hand The, initial position in the machine of sup-J port 8 isdetermined by an adjustable stop 52-threaded into the lower side of the support and arranged to bear upon the upper surface of theabutment. 6. It willbe seen that by turning the stop 52 intoor out-.ofw

the .anovableosupport 8 thelatter. maybe raised or lowered and consequently the effective movement imparted to thesupport 8 by the action of the cams 42 and 46 may be regulated. If, for example, thethrow of the cams isone-half an 'inchand the stop .52

r is set for an initial separation of one-quarter of an mch the movement-imparted to thesup-port 8 will be only one-quarter of an inch. Onthe, other hand, if the stop 52 is so adjustedithat the initial separation is 0 then the cams will be effective, in imparting a. movement-inf one-half an inchto the support.

Thesupport 8 is-provided with; an out-' wardly extending bossin which is adjustably received agsecondstop 54. which :is arranged somewhatrinadvance .of the front surface of the stationary abutment 6 but in operative relation'to the innerend of ashort supportinglever 58 pivotally mounted in the abutment 6. The-lever 58 carries at its innerend. a roller 60-=arranged to bear upon 7 the periphery of a notched cam disk 56 :ar-

ranged to turn loosely upon the outer-end of the shaft 43 above referred. to. The cam disk 561's so designed thatwhen the roller 60 rests in one ofits notches the inner end of-the lever 58 will stand below the end of the stop 54'so thatthe-stop-52 first mentioned will be effectivein determining the The cam 42 isse-::

position of the support 8. However when I the roller 60 rests upon one of the high portions ofthecam' disk -56-the stop 54 becomes effective to determine-the initial position of the sup-port 8, holding the stop 52 above the abutment 6 as shown in Fig. 3. It Will thus be seen that the position of the lever 58 determines which one of thestops 52 or 54 is to control the initial position of the supon the inner surface of a head 44 yieldin'gly' held in place upon the end of the shaft 43- by a spring plunger62 connected to a spring 64 as shown in Fig. 2. The head 44 has a sliding pin connection with the shaft 43 so" that it-will turn with the shaft but may move longitudinally with respect 'thereto. The lever :58 is provided with 'a dog 66 which is designedto fitin the notches of the cam disk 56 and prevent reverse'rotation thereof. It will be seen, therefore, that each time the shaft43 is oscillated the cam disk 56 will be advanced one step in a counter-' clockwise direction but that in the reverse movement of the shaft the cam'disk will be held by the dog 66, the teeth of the head 44 then clicking over the ratchet teeth of the cam disk. In this way the cam disk 56 is moved to present alternately in successive cycles of the machine a notch or a high portion beneaththe roller 66 and the stop 54.

The heel parts to be attached are presented in operative position by mechanism now to be described. Provision is made for rotatably mounting a hub 7 0 at the rear of the die plate 4. The hub, as shown in Fig. 6; carries a pair'of spring fingers 72 which are designed to hold the leather deck of the heel. Disposed at right angles to the fingers 72 is the holder for'the rubber section. This holder comprises a spanker plate 74 and a retaining rim or flange 76'secured thereto and shaped to engage the periphery of the rubber section as shown in Fig. 7. The spanker plate 74 is perforated to receive the shanks of the drivers 78 each of which, as shown in Fig. 7, is provided with a. reduced shank and an enlarged head adaptech'when thespanker plate is forced against'the tread surface of the rubber section, to drive the heads of the attaching nails beneath the surface of the rubber. In the initial position of the machine the fingers 72 are positioned to hold a leather deck beneath the driver passages of the die plate while the-rubber section is held in "aposition' at 'one si'de." After the atta'cliingnailshave been driven: from the die-plate through the leather "deck the. holder is turned through 90 f'-- and the i rubbersection is presented inytheposition formerly occupied by the leather deck.

. The jackl comprises :a base; 14 shaped to slide-in the ways of the jack carriage 12 andghaving sockets to receive downwardly extending stems which are formed on-theibodyv part 86 ofthejaek. A pair of springs 87 normally tend to elevate the body' part the right side of the jackis termined by the position rod llO having ahead through which passes above the base. On each side of the jack are arranged two pairs of vertical toggle links 88 connected at their lower ends to the base 14 and at their upper ends to the body part 86 of the jack. On both sides of the jack the knuckle of each pair of toggles is connected by a bar 89 and upon provided a handle90 by which the operator may break or straighten the toggles to lower or elevate the jack. When the toggles are broken, as shown in Fig. 9, the body portion of the jack rests upon the base 14 by which it is rigidly supported. When the toggle links are straightened, as shown in Fig. 8, they act to support the body part '86 rigidly a predetermined distance above the base. The adjustment of the jack here described compensates for the increased thicknessof the work due to the presentation of the rubber section of the heel as will be apparent from Figs. 8 and 9.

Gage mechanism is provided for positioning the shoe upon the jack and this mechanism is arranged for vertical adjustment with the body part 86 of the jack. To this end there is provided a slide 99 having a pair of downwardly extending pins 97 arranged to slide freely through vertical bearings formed in a bracket 98 extending upwardly and rearwardly from the base 14. A pin 96 extends rearwardly from the body part- 86 of the jack through an aperture in the slide 99 and in this way maintains a connection between the slide and the body part 86 in all positions of'the jack. -The,

slide 99 carries a pair of pivotally mounted 7 side clamps 104 extending upwardly and shaped to engage the counter portion of the shoe adjacent to the'rand crease. The slide 99 also carries a rod 106 carrying at its upper end a back gage .108. The position of the back gage from front to rear is de' 7.

of an adjustable the'slide 99 and'all the gages'carried by it 3 are correspondingly lowered and when the 1 body part of the jack is elevated the gages arealso elevated.

' In the normal operation of the machine the shoe is jacked and the leather'de'ckpresented in operative position; The operator then depresses the treadle 38 to measure the .work: At.this timethe stop 54 of the mom ablesupport 8 is effective, a high part of the cam disk being beneath the roller 60, as shown in Fig. 3. The operator then starts 'the machine whereupon the cross head de- &

scends and the cams 4-2 and 4:6 are rocked to elevate the support 8. It will be apparent that on account of the relatively incompressible nature of the leatherdeck a relatively small movement of the support 8 will. be-

sufficient to subject the work to the required pressure. This is exactly what takes place because the stop 5% brings about a considerable initial separation of the abutment '6 and support 8 so that only the last-portion of the movement of the oscillatory cams 4:9. and ib is effective in elevating the support 8.

In the continued downward movement of. the cross head the pressure cams are first turned and, when the work is under pressure, the drivers 20 drive the attaching nails downwardly through the leather deck and I the outsole as shown in Fig. 8. During the compensate for the added thickness of the work. The treadle 38 is then depressed to measure the work as before and the machine again set in operation. In this cycle the "oscillation of the cams i2 and 46 efiects aconsiderably greater movement of the support 8 and on account of the flexible nature of the rubber section this greater movement results I in no more than the required pressure. In this operation the shorter attaching nails with which the rubber section has been pre viously loaded are forced into the leather deck 1,00 and their heads are embedded below the surface of the rubber. During this cycle the cam disk 56 has been advanced another step so that when the machine comes to rest it is in readiness to operate again upon a leather deck. 7

In order to prevent the presentation of a leather deck in operative position when the pressure mechanism is set for the combined leather and rubber sections safety mecha nism which will now bedescribed is provided.

The outer end of the lever 58 is connected to a vertically extending rod 82 which carries at its upper end a finger 83, extending toward the holder for the heel section. Upon the holder at the opposite side of the'hub from the rubber sect-ion holder is a short bar 80 which is arranged to swing in such a path that it will be encountered by the finger.

83 when the inner end of the lever58 occupies one of the notches in the cam disk 56, that is, the poslt on correspond ng to maxiinumpressure. Itwill be seen'tha'tthe operator is thi'is prevented from presenting the leather deck until the pressuremechanism isproperly adj usted,this being usuallyefiected by causing the machine to make an idle cycle of operations;

Having.thusrdescribedmy invention, I

claim as new and, desire to secure by Letters n Patent oft-he United States:

1. A'machine for operating on heels, having, in combination, relatively movable work pressing members, means :for moving one of i saidmembers-to apply a measuring pressure to the work, andautoinati'c'ally acting mechanism for subsequently moving one of sald membersthrough greater and lesser dis- I tances alternately in successive cycles of the machine for applying additional pressures. 2. A machlne for operating on-heels, havmg, 111 combinatiomrclatively movable workpressingmembers, means for presenting sue cessively 1n operatlvepositlon-a plurality of heel parts, and mechanism for automatically impartingpressure applying movements of different amounts to one ofthe-work pressing members.

3. A machine for operating on heels,-having, in combination, relatively movable work pressing members, means for presenting a leather heel part and then a rubber heel part in operative position, and mechanism acting automatically on one of the pressing members to movesaid member through. a small distance after theleath'er heel partispos t oned and then througha greater distance after the rubber heel= part has been positioned.

4-. 'A machine for operating onheels, having, in combination, a die plate and jack arranged for relative movement, means for unoving one of said members toward the other, to measure the. work, and power driven mechanism for further moving the same member alternately greater and lesser distances in successive cycles of the machine.

5. A machine for operatingon heels, having, in combination, work pressing members, one of which is stationary and the-other movable, means for presenting a leather heel part and then a rubber heel partin operative position, and power driven mechanism for moving the*movable member through a predetermined distance to press the leather heelp'art and then through-a greater distance to press the combined heel parts;

6. A machine for operating on heels, having, in combination, work pressing members,

.one ofwhichi is stationary and'the other movable, one being also shaped to sustain a shoe, means for' presentingato the heel seat of a shoe a leather heel part for attachment andthena rubber heel part, work measuring mechanism, and power driven'mea'ns for moving themovable member-through a rela-' tively short distance to press the 'leather'heel part and through a relatively long distance to press the combined heel parts.

7 A machine for operating on heels, hav-- 'ing, in combination, relatively movable Work pressing members, means for presenting in operative position first a leather heel part and then a rubber heel part, power driven mechanism for moving one of the pressing members after each presentation to press the Work, the movement of said member being alternately long and short, and means for insuring that the leather heel part alone shall not be subjected to the longer movement of the pressing member.

8. A machine for operating on heels, having, in combination, relatively movable Work pressing members, a carrier for presenting in operative position first a leather heel part and then a rubber heel part, power driven mechanism for moving one of the pressing members after each presentation to press the Work, the movements of said member being difi'erent in extent in successive cycles of the machine, and means for preventing the presentation of a leather heel part when said mechanism is set for other than a short movement of the pressing member.

9. A machine for operating on heels, having, in combination, a die plate and jack arranged for relative movement, mechanism for eii'ecting such movement, a controlling cam shaped to vary the extent of successive movements, and means for independently adjusting the extent of the alternate movements.

10. A machine for operating on heels, having, in combination, a die plate and jack arran ed for relative movement, mechanism for efiecting such movement, a pair of adjustable stops for determining the initial relative position of the die plate and jack, and automatic mechanism for rendering the stops alternately effective.

I 11. A machine for operating on heels, havlng, 1n combinatlon, a die plate and jack arranged for relatlve movement, a supporting member for one of said elements a r-c a movable controlling member arranged to render said stops operative alternately in successive cycles of the machine.

13. A machine for operating on heels, having, in combination, a die plate and jack arranged for relative movement, alternately acting stops for determining the extent of such relative movement, a cam disk having alternate high and low points arranged in line With one of the stops, and means for moving the cam disk one step in each cycle of the machine.

14:. In a heel attaching machine, a spanker plate having a rigidly attached holder shaped to embrace the periphery of a rubber heel section, and'separate drivers set in the spanker plate, each having a reduced shank shaped to fit into an openingin the spankerplate and an enlarged head adapted to drive the attaching nails beloW the surface of the rubber heel section. V

In testimony whereof I have signed my name to this specification.

JOHN F. STANDISH.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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