US1207564A - Heeling-machine. - Google Patents

Description

H. W. KENWAY.

HEELING MACHINE.

APPLICATION FILED JULYHS, 1912. RENEWED SEPT. 14. 1916.

Patented Dec. 5, 1916.

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H. W. KENWAY.

HEELING MACHINE. APPLICATION FILED JULY16,1912- RENEWED SEPT. 14, 1916 mmfiw Patented Dec. 1916.

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H. W. KENWAY.

HEELING MACHINE.

APPLICATION FILED JULY\6, 1912. RENEWED SEPT. 14, \916- Patented Dec. 5, 1916.

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-HElR-BERT W. KENWAY, OF NEWTON, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEELING-MACHINE.

Application filed July 16, 1912, Serial No. 709,695.

To all whom it may concern:

Be it known that I, HERBERT W. Tinn- WAY, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Heeling-Machines, of

liminarily to the application of an additional pressure by power operated means.

In heeling shoes upon wooden lasts it is important that the pressure of engagement in the measuring operation should be invariably within predetermined limits for if this pressure is too light the heel and the shoe will not be held securely in such intrmate contact as is necessary to insure the production of a perfect joint between heel and heel seat by the attaching nalls, and on the other hand, if this pressure 1s too great the last may be broken down upon the application of the additional pressure which precedes the nail driving operation. When the measuring operation depends upon the varying inclination and physical strength of the operator it is apparent that uniform results are out of the question.

An important feature of the present 111- vention, accordingly, consists in a novel form of measuring mechanism arranged to be actuated mechanically so that uniform results are insured regardless of the operator.

There are in common use at present heeling machines of two distinct types. In one of these, of which the machine shown in United States Letters Patent No. 1,157,688, granted October 26, 1915, on an application of Lester L. Glidden, is a good example, the measuring operation and the application of the additional pressure are effected by rela tively moving first one and then. the other of two cooperating work engaging members. In machines of the other type, of which that shown in United States Letters Patent No. 446,885, granted Feb. 24, 1891, to J. H. Pope is a good example, the measuring operation and the application of ad- Specification of Letters Yatent.

Patented Dec. 5, 191 6.

Renewed September 14, 1916. Serial No. 120,193.

ditional pressure are efi'ected by moving one work engaging member by two successive steps toward a normally stationary cooperating work engaging member. The invention is herein shown as embodied in a machine of the latter type, although certain of its features may be employed with good advantage in other machines.

An important feature of the invention consists in measuring mechanism for a heeling machine so constructed that it may be controlled by the motions of the operator which are necessary in order to arrange the work and machine parts in operative relation. For example, it is customary to jack a shoe and then to move the jack with the shoe into alinement with a die plate, or to move the die plate into alinement with the jacked shoe, and in the illustrated embodiment of the present invention it is proposed to utilize this relative movement of the jack and die plate to control the operation of the measuring mechanism. This arrangement is advantageous in that it is well suited to the convenience of the operator anddoes not slow down the cycle of the operations of the machine.

An important feature of the invention consists broadly in combining mechanically actuated measuring mechanism with cooperating work engaging members in such a manner that the two members are caused to approach each other and effect the measuring operation upon being moved into alinement with each other.

The measuring mechanism herein disclosed may be embodied to good advantage ilrthe well known lightning nailing machine, shown in said Patent No. 44:6,885, in which the measuring operation has heretofore been eflected through the medium of a treadle which the operator depresses with his foot twice during the operation of attaching a heel and spanking a top lift. In that machine the die plate is fixed and the jack is arranged to slide horizontally under the die plate after a shoe has been placed upon the jack while the latter is in an advanced position.

In the embodiment of the invention here- 7 in disclosed the final portion of the inward movement of the jack is utilized to initiate the operation of the measuring mechanism. The work, therefore, is engaged between the jack and the die plate by a relative movement of these two members toward each other, which movement is brought about by moving the jack into heel attaching position as has always to be done in operating a machine of this character.

In the embodiment of the invention herein shown the jack is elevated toward the die plate in the measuring and pressin operations, but it would not be without t 1e scope of the invention to move the die plate toward the jack and in adapting the present invention to certain other types of heeling machines this would be the arrangement.

In the machine herein disclosed the measuring operation is normally initiated by moving the jack into attaching position but in order that the jack may be so positioned without necessarily causing the measuring operation to take place, the present invention contemplates the provision of a controlling device so placed that the operator may move it into effective position or not as desired when pushing the jack into position. Provision is also made for initiating the measuring operation independently of the movement of the jack in order that the jack need not be moved between the attaching and spanking operations unless the operator so prefers. A combination comprising means for effecting these results constitutes another important feature of the invention.

As herein shown a tripping device for initiating the action of the measuring mechanism is located upon the jack and this arrangement presents the important advantage that it insures that the jack shall be properly positioned before the measuring operation can be begun.

Another feature of the invention consists in means under the control of the operator for temporarily separating the work engaging members after the measuring operation has been effected. Occasion for this would arise in case it is desired to correct or change the position of the parts of the work before they are permanently united by the attaching nails or otherwise operated upon.

In the embodiment of the invention herein shown the jack may be lowered away from the die plate by a treadle connected at the proper point with the measuring mechanism.

hen the treadle is depressed it acts through the measuring mechanism in opposition to the actuating spring and the arrangement is such that upon releasing the treadle the spring becomes effective to cause remeasuring of the work.

In the normal operation of the machine herein disclosed the actuator for the measuring mechanism is energized by power as the last step in each cycle of the machine but, in order that the actuator may be energized by the operator preparatory to operating upon the first shoe, or in case it is desired to remove a measured shoe from the machine without completing the attaching operation, the invention contemplates, as another important feature, the provision of manually operated auxiliary means for energizing the actuator for the measuring mechanism. In the machine, herein shown the treadle by which temporary separation of the workengaging members is effected is so arranged as to accomplish this additional function when depressed to the limit and, while the provision of a single device, such as the treadle for effecting both these purposes, presents a preferred mechanical construction, it should be understood that the two operations are distinct and need not necessarily be effected by the same means.

These and other features of the invention will be best 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 of the machine in front elevation showing the parts in their initial position; Fig. 2 is a similar View showing the machine at the conclusion of the measuring operation; Fig. 3 is a fragmentary view in perspective of the measuring mechanism and associated parts; Fig. 4. is a plan view, partly in section, showing a portion of the jack and the tripping device for the measuring mechanism; Fig. 5 is a sectional view in perspective of part of the actuator for the measuring mechanism, and Fig. 6 is a view in perspective of the jack carrying the tripping device.

The machine frame is provided with journals for a horizontal driving shaft 2 to which is secured a fly wheel 4 and also a driving pulley not shown. Between the driving pulley and the shaft 2 is interposed a clutch which is under control of a starting lever 6 pivotally mounted on the frame within convenient reach of the operator and normally held in elevated position by the tension spring 7. These parts of the machine are substantially similar to the corresponding parts of the machine fully described in Patent No. 446,885 above referred to.

The machine frame has a pair of bosses 9 in which are formed vertical bearings for side rods 8 connected at their upper ends by a cross head 10 and at their lower end by a cross head 12. The rods 8 are reci rocated vertically from the main sha t 2 through the medium of a crank and link 14, the latter being connected at its lower end to the cross head 12. Rigidly secured to the frame of the machine above the bosses 9 is a stationary plate 16 which is provided at its center with the usual driving passages of the die plate of a heeling machine. The upper cross head 10 carries a removable driver block 18 in which is set a gang of drivers arranged in alinement with the passages in the die plate 16. Upon the underneath side of the die plate are provided holders 20 for a heel blank and the usual top lift holder, not shown, may be arranged to be moved into the position of the heel blank holder in any desired manner.

The machine frame is provided with a stationary portion 26 above which are arranged vertical guideways for the jack carriage 28 and the jack carriage support 30. The jack carriage 28 is provided with horizontal ways for the jack 32 and with a thread for a vertical measuring screw 34 which rests at its lower end upon the jack carriage support 30. In the portion 26 of the" frame and in the jack carriage support 30 are mounted a pair of cooperating pres-' sure cams 36, 38 and these cams are connect ed by rock arms 37 and links 39, see Fig. 3, to the fixed collars 40 and 42 upon the side rods and are oscillated during the downward movement of the side rods. The cams 36 and 38 are so shaped that the jack carriage support 30 is elevated to apply a positive pressure to the heel just before the drivers begin to act upon the nails supplied to the passages of the die plate.

The measuring screw 34 is provided at its lower end with an elongated pinion 44 whichmeshes with a rack 46 mounted for transverse reciprocation in bearings 48 se cured to the machine frame.

The rack 46 is slot-ted at its right end to receive a safety locking bar 47 which is pivotally connected to the starting handle 6 and guided at its lower end in one of the bearings of the rack. In the initial position of the machine the lower end of the rod 47 engages the unslotted portion of the rack so that depression of the starting handle is prevented, and it is only after the rack has been moved toward the left in the measuring operation that the starting handle is released.

In accordance with the present invention the measuring operation is effected by moving the rack 46 automatically prelil'ninarily to setting the machine in operation and one form of actuator for effecting this automatic movement of the jack will now be described. Upon the left side rod 8 is slidingly mounted a loose sleeve 50 carrying a transversely projecting stud 51 by which it is connected to a heavy tension spring which tends to move the sleeve 50 downwardly upon the side rod. To the lower end of the sleeve 50 is pivotally connected the link 54 which in turn is connected at its lower end to one arm of a bell crank lever 56 pivotally mounted upon the stationary part 26 of the frame. The other arm of the lever 56 is connected to the rack 46 through a short link 58. It will be apparent that when the spring 52 is permitted to rod 8 is provided with a hardened piece 60 in which is formed a notch as shown in Fig. 5. Mounted for horizontal movement in a boss formed on the rear side of the sleeve 50 is a locking plunger 62 normally urged toward the side rod by a compression spring 64 and provided with a transverse stud 66 by which it may be retracted to release the sleeve 50. It will be seen that when the side rod 8 moves upwardly the shoulder of the notch in the piece 60 will engage the forward end of the plunger 62 and through it the sleeve 50 will be elevated and the spring 52 placed under tension.

The upward movement of the side rods 8 is very rapid and in order to relieve the shock on the measuring mechanism a yielding connection is provided between the link 54 and the bell crank lever 56. For this purpose the lower end of the link 54 is slotted and provided with a spindle 70 which is surrounded by a compression spring bearing against the under side of a collar, not shown, to which one arm of the lever is pivoted. It will be seen that when the sleeve 50 is rapidly lifted by the side rod 8 the spring about the spindle 70 will be somewhat compressed momentarily and the bell crank lever 54 will be swung yieldingly in such a direction as to retract or move the rack 46 toward the right.

The plunger 62 may be retracted to release the sleeve 50 and permit the actuation of the measuring mechanism in any convenient manner but as herein shown this function is effected normally by moving the jack 32 from its forward position in which the shoe is jacked into its rear or attaching position. To this end a tripping pin 67 is slidingly arranged within the sleeve 50 to act upon the stud 66 of the spring locking plunger 62 as shown in Fig. 4 and a tripping lever is mounted on the left side of the jack in such a manner as to engage the projecting end of the tripping pin 67 when the jack is pushed into its rear position. The tripping lever 80 is pivotally mounted on the jack and has a rearwardly extending arm 81 carrying a set screw by which its rearward position may be determined and a forwardly extending arm 82 carrying a set screw 83. The tripping lever is normally held in its rearmost position, that is, with the rear set screw bearing against the jack post as shown in Fig. 4,

by a weak compression spring 84. Normally the inner end of the set screw 83 is separated from the jack so that the lever 80 may move idly when the jack is pushed toward the rear, the compression of the spring 84 being insuflicient to overcome the compression of the heavier spring 64 which holds the locking plunger 62 in engagement with the notch in the side rod 8. A trip controlling device in the form of a slide 85 is arranged to be moved between the end of the set screw 83 and the jack in the normal operation of the machine when the operator so desires. The slide 85 fits in undercut ways formed in a boss on the side of the frame and has a knob or button located at that point on the jack which is ordinarily engaged by the operator in manipulating the same. The slide 85 is normally held in its forward or inoperative position by a tension spring 86 and it will be seen that in pushing the jack into attaching position the operators hand will naturally engage the slide 85 and move it rearwardly into the dotted line position shown in Fig. 4 where it rigidly backs up the tripping lever 80 and renders the lever effective for releasing the sleeve 50.

In order to provide for temporarily lowering the jack after the measuring operation has taken place, in case it is desired to straighten a heel blank or top lift, auxiliary manually operated means are provided for retracting the rack 46. As herein shown these auxiliary means comprise a forked arm 90 on the bell crank lever 56 to which is connected a slotted link 91 pivoted at its lower end to a foot .treadle 92. A tension spring 93 normally holds the treadle 92 in its elevated position in which position the slot in the link 91 is disposed with its lower end near the pin 89 by which the link is connected to the arm 90 of the lever 56. The normal oscillation of the lever 56 therefore has no effect upon the treadle lever 92 as the pin 89 merely traverses the slot idly.

en the measuring operation has been effected, however, the connecting pin 89 oocupies a position adjacent to the upper end of the slot so that if the treadle lever 92 is depressed the link 91 will swing the lever 56 toward the right retracting the rack 46 and also elevating the sleeve 50 against the tension of the spring 52. It will be seen that by this means the operator may hold the jack in a slightly lowered position while correcting the position of the heel blank or top lift and then by releasing the treadle allow the spring 52 to act as before and again elevate the jack and remeasure the work. By depressing the treadle lever 92 to the limit the sleeve 50 will be elevated suificiently to carry the locking plunger 62 into register with a notch in the side rod so that in this way the treadle may be utilized to energize the actuator for the measuring mechanism independently of the manner in which this function is accomplished automatically in the normal operation of the machine.

The operation of the machine may be outlined briefly as follows: In its initial position the side rods and cross head 10 are elevated and the sleeve 50 occupies its upper position with its spring 52 under tension as'shown in Fig. 1. The operator pulls the jack forwardly and jacks a shoe while his assistant places a heel blank in position under the die plate 16 and inserts the attaching nails in the driver passages. The operator then slides the jack rearwardly to bring the heel seat of the shoe into alinement with the heel blank and in this operation the tripping lever 80 upon the side of the jack strikes the tripping pin 67 and releases the sleeve 50 which thereupon is pulled downwardly by the spring 52. Downward movement of the sleeve 50 is transmitted to the rack 46 as a horizontal movement toward the left and the measuring screw 34 is rotated, lifting the jack until the heel seat of the shoe brings up against the heel blank. The extent of downward movement of the sleeve 50 and horizontal movement of the rack 46 depends solely upon the thickness of the work engaged between the jack and the die plate so that a uniform measuring pressure is exerted regardless of the thickness of the work. The operator then depresses the starting handle 6 whereupon the side rods are moved downwardly, first causing the pressure cams 36, 38 to elevate the jack carriage and jack by a predetermined amount placing the work un der a positive pressure and then causing the drivers to drive the attaching nails from the passages in the die plate through the heel blank and into the heel seat of the shoe upon the jack. In the downward movement of the side rods the notched piece 60 is carried somewhat below the locking plunger 62 in the sleeve 50 so that in the upward movement of the side rods, which occurs without interruption, the sleeve 50 is picked up, the spring 52 placed under tension and the rack 46 moved reversely lowm'iug the jack carriage and jack into initial position. During this same movement the pressure cams 36, 38 are returned to their initial position and this causes a slight further descent of the jack. A top lift is then placed in the position formerly occupied by the heel blank under the die plate and the operation is repeated to spank the top lift on the projecting ends of the attachlng nails.

Many operators prefer to pull the jack forwardly and to place the top lift blank upon the shoe and then move the shoe and lift rearwardly again into attaching position. For carrying out this method of operation the present mechanism may be used without change as the measuring operation preparatory to spanking the top lift will be effected precisely as it was effected preparatory to driving the attaching nails. Some operators, however, prefer to place the top lift without moving the jack and in such cases the measuring operation may be initiated by merely striking the tripping lever 80 to swing it rearwardly after the top lift has been placed in position.

It will be apparent that awls could be substituted for the drivers herein shown and that the invention could be embodied in a machine for pricking heels with scarcely any other change or that the provision of a turret carrying awls and also drivers would in no way affect the operation of the measuring mechanism herein disclosed and it should be understood that the application of automatic measuring mechanism to such machines is clearly within the scope of the present invention.

Many features of the machine herein disclosed are broadly claimed in my co-pending application Serial No. 860,046 which constitutes a continuation in part of the present application and generic to the disclosures of both applications.

Having described my invention, claim as new and desire to secure by cers Patent of the United States is:

1. A machine for operating on heels having, in combination, power driven tools, a pair of cooperating pressing members movable relatively to each other in a horizontal direction and also movable toward each other in a vertical path, and means including spring actuated mechanism for causing the latter movement to take place automatically when the two members are brought into vertical alinement before the power actuation of the machine.

2. A machine for operating on heels having, in combination, power driven tools, a pair of cooperating pressing members one of which is arranged above the other, said members being relatively movable into or out of vertical alinement with each other, and means including spring actuated mechanism for automatically moving one of said members toward the other when brought into vertical alinement therewith before the power actuation of the machine.

3. A machine for operating on heels having, in combination, power driven tools, cooperating pressing members, one of which is normally stationary and the other of which is movable in a horizontal path into vertical alinement therewith, and means acting independently of the tools for automatically bringing about the movement of said horizontally m va le m m er in a vertical path what I Letcontains claims when it is moved into vertical alinement with said normally stationary member.

4. A machine for operating on heels having, in combination, nailing mechanism, 00* operating work pressing members one of which is located normally in alinement with said mechanism and the other of which is movable horizontally into or out of aline ment with said mechanism, and means re sponsive to the horizontal movement of said member for causing said member automatically to approach the cooperating work pressing member by a substantially vertical movement when moved into vertical alinement with the nailing mechanism, said means operating independently of the nailing mechanism.

5. A machine for operating on heels having, in combination, nailing mechanism, cooperating work pressing members one of which is normally arranged in alinement with said nailing mechanism and the other of which is movable horizontally preparatory to the nailing operation into alinement with the nailing mechanism, and mechanically actuated measuring mechanism responsive to the movement of the latter member into alinement with the nailing mechanism for causing said movable member to move vertically toward the other work pressing members.

6. A machine for operating on heels having, in combination, a fixed die plate, a jack movable horizontally into vertical alinement with and beneath said plate, and mechanically actuated mechanism for elevating the jack controlled by the horizontal movement of the jack and arranged to operate preliminarily to the power actuation of the niachine.

7. A machine for operating on heels having, in combination, side rods, an associated gang of tools, relatively movable work holding members, and automatic measuring mechanism including a spring actuated sleeve loosely mounted on one of the side rods and connecting mechanism between the sleeve and one of the work holding members.

8. A machine for operating on heels having, in combination, a die plate, a jack carriage movable toward and from the die plate, a jack mounted for transverse movement in the carriage into alinement with the die plate, and means responsive to such transverse movement of the jack for moving the carriage and jack bodily toward the die plate.

9. A machine for operating on heels having, in combination, a relatively movable die plate and work support, an actuator arranged to be energized in each cycle of the machine, and means responsive to the presentation of the work preliminarily to the succeeding cycle of the machine for render i g the act at r effective to move the die ing, in combination, a die plate, a work support movable in two directions, an actuator connected with the work support and ar: ranged to be energized in each cycle of the machine, and means controlled by the position of the work support for bringing about the action of the actuator to produce a move- Irient of the work support toward the die p ate.

12. A machine for operating on heels having, in combination, a die plate, a jack carriage guided for movement toward and from the die plate, a jack movable transversely upon the jack carriage, and an actuator arranged to be energized in each cycle of the machine and having connections with the jack carriage, said actuator being responsive to the transverse movement of the jack in the carriage for bodily moving the carriage and jack toward the die plate.

13. A machine for operating on heels having, in combination, a stationary work engaging member, a movable cooperating work engaging member, and means for guiding said movable member in a horizontal path toward and from a position in vertical alinement with the stationary member, said movable member being arranged to approach the stationary member automatically when moved into vertical alinement therewith and preliminarily to starting the machine.

14. A machine for operating on heels having, in combination, a normally stationary work engaging member, a carriage having horizontal ways therein, and a cooperating work engaging member mounted on said ways and movable toward and from a position in vertical alinement with the stationary member, said carriage and movable member being arranged to move bodily and automatically toward the stationary member when the movable member is brought into vertical alinement with the stationary member;

15. A machine of the class described having, in combination, a gang of tools, power actuating means for the tools, heel measuring mechanism, a source of motive power for actuating said measuring mechanism to effect completely the measuring operation while the power actuating means remains at rest, separate controlling devices for rendermg efl'ective first the source of motive power for the measuring mechanism and then the power actuating means for the tools, and means for automatically applying pressure to the work when the power actuating means For the tools is set in operation.

16. A 1nachine of the class described having, in combination, a die plate having means for sustaining a heel blank upon its lower surface, and a jack arranged below the die plate, said die plate and jack being relatively movable manually into and out of vertical alinement and, before starting the machine, being relatively movable vertically and automatically when the jack and heel blank are brought into vertical alinement.

17. A machine of the class described having, in combination, a die plate having a heel blank holder, a jack for a shoe, the plate and jack being arranged to be relatively moved manually into and out of vertical alinement, and means for automatically causing the lower of said members to be lifted to produce a relative vertical movement of the shoe and heel when they are brought manually into alinement preliminarily to starting the machine.

18. A machine of the class described having, in combination, relatively movable work engaging members including a jack, automatic measuring mechanism responsive to the movement of the jack, and a controlling dmiice for the measuring mechanism on the ae 19. A machine of the class described having, in combination, relatively movable work engaging members including a jack, auto matic measuring mechanism responsive to the movement of the jack, and a controlling device for the measuring mechanism arranged to act when the jack is moved by the operator.

20. A machine of the class described having, in combination, relatively movable Work engaging members including a jack, automatic measuring mechanism responsive to the movement of the Jack, a tripping device for the measuring mechanism, and a trip controlling device on the jack.

21. A machine of the class described having, in combination, oppositely disposed work engaging members one of which 'is movable into or out of vertical alinement with the other, automatic measuring mechanism responsive to the movement of the latter member, and a controlling device for the measuring mechanism associated with said member.

22. A machine of the class described having, in combination, relatively movable work engaging members including a jack, automatic measuring mechanism, and means adjacent to the jack arranged to be operated independently of the jack to initiate the action of the measuring mechanism.

23. A machine of the class described havmemes ing, in combination, relatively movable Work engaging members including a jack, automatic measuring mechanism, and means adjacent t the jack arranged to be operated either dependently or independently of the jack to initiate the action of the measuring mechanism.

24. A machine of the class described having, in combination, relatively movable work engaging members including a jack, and automatic measuring mechanism responsive to the movement of the ack or not responsive to such movement according to the option of the operator. 7

25. A machine of the class described having, in combination, relatively movable work engaging members including a jack, automatic measuring mechanism, a tripping device mounted on the jack for initiating the action of the measuring mechanism, and a trip controlling device on the ack.

26. A machine of the class described having, in combination, relatively movable work engaging members including a jack, automatic measuring mechanism, and'a tripping device for said mechanism adapted to be operated only when the jack has been moved into a predetermined position.

27. A machine of the class described having, in combination, relatively movable Work engaging members including a jack, automatie measuring mechanism, and a tripping device for said mechanism arranged to be moved into or out of operative relation with the automatic measuring mechanism in accordance with the position of the jack.

28. A machine of the class described having, in combination, a stationary die plate, a jack movable relatively thereto, a sleeve normally urged in one direction by a spring, means for moving the sleeve in opposition to the spring and holding it in position, measuring mechanism connected to and actuated by the sleeve, and a tripping device adapted to release the sleeve and so initiate the action of the measuring mechanism.

29. A machine of the class described having, in combination, a jack and die plate relatively movable to measure the work, a spring arranged to be placed under tension by the power of the machine, and mechanism constructed and arranged to be operated when the jack is being moved into operative position for releasing the tensioned spring, whereby the measuring operation may be effected.

30. A machine for operating on heels having, in combination, power driven tools, a die plate, a jack movable horizontally beneath the die plate from an outer to an inner position, automatic measuring mechanism for moving the jack upwardly toward the die, starting mechanism, and means for locking the starting mechanism arranged to be unlocked in response to the inward movement of the jack.

31. A machine for operating on heels having, in combination, power driven tools, a jack movable to or from alinement with the tools, automatic mechanism for measuring the work upon the jack, :1 starting device, means for locking the starting device, and a train of mechanism between "the jack and the starting device arranged to be set in motion for releasing the starting device by the inward movement of the jack.

32. A machine for operating on heels, comprising a heel holder, a jack for a shoe on the last arranged for movement below a heel on the holder to bring the heel seat of the shoe into alinement with the heel, and means responsive to such movement of the jack and arranged for operating automatically when such relation is established for so moving the jack as to bring the heeland shoe into engagement.

A heel nailing machine having, in combination, a driver gang, a jack arranged to slide to or from a positionin alinement with the driver gang, automatic mechanism for moving the jack to measure the work, a starting device 6, a lock 47, and a lever 56 the motion of which is initiated by the movement of the jack into alinement with the driver gang for unlocking the starting device.

In testimony whereof I have signed my name to this specifi ration in the presence of two subscribing witnesses.

HERlilllftT W. KENWAY.

Witnesses:

ARTHUR Rnssunn, JENNIE l. 'A'NnansoN.

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