US1020631A - Lasting-machine. - Google Patents

Description

- A. BATES.

LASTING MACHINE.

APPLICATION FILED JUNE 21, 1911.

1,020,631 Patented Mar. 19, 1912.

UNITED STATES PATENT OFFICE.

ARTHUR BATES, 0F LEICESTER, ENGLAND, ASSIG-NOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

LASTING-MAGHINE.

To all whom it may concern Be it known that I, ARTHUR BATES, a subject of the King of England, residing at Leicester, in the county of Leicester, England, have invented certain Improvements in Lasting-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to lasting machines and this application is a division of my pending application Serial No. 614,154, filed March 13, 1911.. The invention is particularly adapted for use in connection with lasting machines of the type described in United States Letters Patent- No. 584,74A, dated June 15, 1897. Machines of the type referred to and commercially known as hand method lasting machines employ a pair of lasting pincers, which at certain times during the lasting operation are given a p-laiting action to crimp or plait the upper at certain parts in order to dispose of the fullness of the upper materials and so to last the upper without wrinkling or puckering. This is especially necessary at the too where the upper stands out from the last angularly thereto. Commonly, this plaiting action comprises both lateral and turning or twisting movements of the pincers, the pincers thereby being operated in the most efficient manner to plait the pulled over margin of upper and lining with absolute smoothness. For imparting the above described plaiting movements to the lasting pincers, cam actuated mechanism is provided. This pincer plaiting mechanism is normally inoperative and a controlling clevice, commonly a block mounted to slide in a segmental guideway, serves both to start and suspend the action of the pincer plaiting mechanism and also to determine, control and vary the extent or magnitude of the plaiting action. To this end, the block or controlling device is normally mounted centrally and midway of the guideway and the guideway which carries the block is formed on a lever or driver which is rocked continuously by a rock shaft actuated from a cam on the main shaft, the construction being such that whenever the block or controlling device is displaced from its central Specification. of Letters Patent.

Patented Mar. 19, 1912.

Original application filed March 13, 1911, Serial No. 614,154. Divided and this application fi1ed June 8, Serial No. 631,938.

and inoperative position, the pincers are actuated through suitable connections with the controlling device to plait the upper and whenever the controlling device is returned to its neutral position, the pincer plaiting action is stopped or suspended. The controlling device, as suggested above, also serves to control and vary the direction and extent of plaiting action and, to accomplish this result, it is adapted for movement either side of its central position, the direction and amount of its displacement from central position governin the direction and amplitude of the planting action of the pincers.

In order that the plaiiing action may be initiated, controlled and varied at will, it is usual to provide a knee lever movable either side of its normal position and suitably connected with the block which controls the plaiting action, whereby the plaiting action can be effected and changed in direction and extent as desired by movement of the knee lever one way or the other. In the practical use of the machine of the said prior Letters Patent, however, the shoe is manually held up to the pincers and the direction and extent of its feed past the pincers is controlled by the hands of the operator. Since both the direction of the plaiting and the extent or magnitude thereof should for the best results depend upon the extent and direction of the feed and should at all times be made to correspond therewith, to relieve the operator of the necessity of attending both to the feeding of the shoe past the pincers, and to the regulating of the pincer plaiting action in correspondence therewith is a principal object of this invention. With this object in view, broadly speaking, the presentinvention contemplates making these two actions automatically interdependent and, to this end, preferably, and as shown and hereinafter described in detail, the construction is such that the operator may by feeding the work thereby cause the plaiting action to occur in timed relation with and correspondingly in direction and extent to the feeding action.

Accordingly a preferred embodiment of this invention comprises provision in a lasting machine of the type above mentioned, of means whereby the feed of the work controls the plaiting mechanism and convenmechanism in such a manner that the actuation of the work engaging means by the feed of the Work will simultaneously initiate the plaiting action and so that thereafter any variation in the direction and extent of the feed will at the same time cause the direction and magnitude of the plaiting action to be similarly varied.

Considered more in detail the invention as preferably embodied in the machine of the said prior Letters Patent comprises a rotatable wheel or work engaging member adapted to engage the bottom of the inverted shoe and operative connections between this wheel and the movable controlling device hereinbefore referred to.

T In the illustrated form of the invention the manual feed of the Work against the wheel rotates the wheel in one direction or another so that the wheel and its associated parts, together with the movable block constitute means for rendering the plaiting mechanism operative and the rotation of the wheel through the connections between the wheel and the movable block operates to set the block controlling device for governing the action of the plaiting mechanism.

This invention will now be described, as applied to a lasting machine of the type illustrated in the specification of the above mentioned Letters Patent, but it is to be understood that this is merely by way of eX- ample, and not by way of limitation, for the invention in its broad aspect is not limited to use in this particular type of machine, nor is it limited to embodiment in the precise form illustrated and described. As above stated the present invention is shown as embodied in the machine of the said prior United States Letters Patent and reference should be had to the specification thereof for matters of construction and for details ofdescription not fully'entered into herein. For convenience, parts herein shown which are like, or similar to parts in the specification of the said prior patent are generally indicated by like reference characters.

Referring to the drawings :Figure 1 is an angular perspective in elevation of a part of the machine of the specification of the before mentioned Letters Patent with one embodiment of the present invention applied thereto; Fig. 2 is an elevation of the work engaging member and associated parts; and Fig. 3 is a detail in elevation of the work engaging member and associated parts partly in section as looked at from line 3-3 of Fig. 2.

The operating mechanism of the machine is supported in a frame work or head 13 mounted at the top end of a supporting column. J ournaled in the head B is a shaft D, this shaft being the main driving shaft of the machine and having set upon it the cams and gears from which the principal operating parts of the machine receive their auto-' matic movements. On the shaft D is a cam 280 connected by a slide E with a tipping updraw lever 18 fulcrumed at 19 and having the pincers suspended by a ball X from its front end. The pincers comprise a stationary aw 14 fixed in the pincers carrier and a movable jaw 16. The pincers carrier com-' prises a casing or sleeve 13 through which extends a rod 15 having pivotally connected to itthe movable jaw 16 and operating to close the aw 16 for gripping the stock; the jaw 16 being reversely moved by the spring S. The rod 15 is engaged by a spring pressed plunger 27 on one arm of a rock shaft 36, the other arm of which has a roll in engagement with an edge cam face 40 on shaft D, whereby upon the revolution of shaft D and cam 40 at suitable times the pincers are caused to be closed and opened for gripping and releasing the upper. Besides the opening and closing movements of the pincers thus effected, the pincer mechanism as a whole is at certain times raised and lowered through tipping movements of lever 18 induced by upward and downward movements of slide E actuated by cam 280 on shaft D, the upward movement of the pincer mechanism occurring after the pincers have tightly gripped the upper and serving to strain the upper vertically, while the ensuing downward movement of the pincers lowers them into position for placing the ;upper over the inner sole.

plaiting movements consisting of lateral and turning movements by means of which the upper is folded, particularly at the toe of ithe shoe, to take care of the surplus in the ;margin of the upper which is laid over the curved edge of the last. The turning movements of the pincers are effected through a .link 1 8 connected to a lever X, the upper lend of which is connected to a rack X which jengages teeth formed on the ball X for ro- Qtating the pincers. jmovements of the pincers, the pincers are arranged to extend downwardly through a guideway formed in an endwise movable block 51 which is supported in the forward ;end of a yoke on a sliding rod 50. Movejment of the sliding block 51 is effected through a rod 55, the construction being :such that movements of block 51 one way and then the other will operate through suitable connections, clearly shown and de To effect the lateral their vertical line of action. For overlaying.

=upward and downward and overdraw movements of the pmcers, the pmcers are given ,plaltlng movements at certain times, the

the upper when the pincers have, through downward movement of the forward end of lever 18, been placed in their lowermost position as before stated, the sliding rod 50 has a roll for engaging a cam 4L1 on the shaft D to move the pincers toward the machine, and the rear end of rod 50 is engaged by a lever 54 actuated by a spring 53 for moving the pincers from the machine to overlay the upper.

The above described means for turning the pincers and for moving them laterally are actuated from the cam 61 through a lever 60 supported by a pin 302, the inner end of the lever 60 having a roll standing in the cam groove 61 and the outer end operating to actuate a rock shaft 56.

The parts above described may, as shown, be substantially the same in construction and operation as the similar parts of the machine of said prior patent, and further detailed description thereof will therefore be omitted. In the machine of said patent, the above mentioned rock shaft 56 carries on its front end a rocker which, for convenience. may be termed the driver for the pincers plaiting mechanism, and which forms a segmental guideway for a segment block formed to slide in the said guideway and movable therein from and toward the center of the rocker. The said segment block has connections both with the lever X and with the rod 55, and upon adjustment operates through the said lever and rod the above described means for turning the pincers and for moving them laterally. The construction is such that the pincer plaiting mechanism is normally inoperative but is adapted to be thrown into operation upon adjustment of the said block from its central or neutral position in the segmental guideway, adjustment of the block one side of its normal position directing the plaiting action one way and adjustment of the block the other side of the central position directing the plaiting action reversely, while the amount of plaiting action is in each instance controlled by the amount of movement of the block from its initial position. The segment block thus operates as a controlling device to start and stop the lateral and turning movements of the pincers as well as to govern and vary the direction and extent of the said pincers movements.

The illustrated construction by which, in accordance with the present invention, the pincer plaiting movements may be made to correspond with the feed of the work may be described as follows:-As in the machine of the said patent, the pincer plaiting mechanism is normally inoperative and is adapted to be actuated upon movement of a movable block. The means for actuating and controlling the direction and extent of movement of that block according to this invention comprises the rotary work engaging wheel 80 and its connections with the said block. The wheel 80 is rotatably carried at the lower end of an arm 82 fixed to the frame of the machine projecting i11- wardly toward the pincers, and has its operating face toothed or corrugated for engaging the work without slipping. At its center is a projecting point 84 adapted to engage the insole at the toe portion so that the working face of the wheel may be maintained in proper position with relation to the sole to effect the feeding of the work. Journaled inside the projecting arm 82 is a shaft 86 (Fig. 3) having a bevel gear con nection at its outer end with the wheel 80, and being connected at its other end by bevel gears to an upright shaft 88. The shaft 88 has loosely mounted upon it a cam 90 (Fig. 3) having a spiral groove. The lower edge of the cam 90 is formed with teeth 92 which are adapted to engage similar teeth upon a collar 91 fixed to the shaft 88, and are normally forced into engagement with those teeth by means of a spring 90 so that cam 90 is normally clutched to shaft 88. Pivoted upon the frame of the machine at 98 (Fig. 2) is a lever 100 carrying at its outer end a cam roll 102 engaged by the spiral groove in the cam 90, and at its opposite and inner end the lever 100 is provided with jaws 104 which are adapted to engage a block 106 which is in all respects the equivalent of the before mentioned block controlling device of the machine of the said patent. The block 106 has pivoted to it a link 108, the other end of the link 108 being pivoted upon an arm 110 projecting from the rock shaft 56 which in the machine of the said prior patent carried the segmental guideway, the link 108 forming with the arm 110 what may conveniently be termed an inverted toggle. This block 106 is also connected through rod 55 and link X to the plaiting mechanism and constitutes a sensitive and readily shiftable connection between the rest and the plaiting mechanism.

In operation the operator feeds the shoe past the pincers by hand, as in operating a machine of the said prior patent and the feed of the work bearing against the wheel 80 causes said wheel to be rotated, and the rotation of wheel 80 through shafts 80 and 88 causes cam 90 to be revolved. The revolution of cam 90 operates the roll 102 lying in the spiral groove of cam 90 to rock the outer end of lever 100 up or down. The opposite movement being given to the jaws carrying end of lever 100, the block 106 is moved up or down as the case may be. WVhen in central position the center of block 100 coincides with the center of the rock shaft 56 and, therefore, motion of the rock shaft imparts no motion to the plaiting pincers. When, however, block "124 is moved up or down from its neutral position its center no longer coincides with the center of rock shaft 56, and consequently when rock shaft 56 moves, its projecting arm 110 and the link 108 also move and, as the block 106 is connected to the plaiting mechanism through the link X and rod 55, that mechanism is operated as in the machine of the said prior patent to impart plaiting movements to the pincers. It will be apparent that by reason of this construction the initiation, direction and extent of the feed of the work will determine and govern in correspondence therewith the starting, stopping, direction and magnitude of the plaiting ac tion. In order that after each plaiting operation and while the pincers are being returned into position for another operation the spiral cam 90 may also be returned to normal position, a cam roll 112 (Fig. 3) is provided on a short arm depending from the pincer casing 13 and this roll 112 on the backward and return movement of the pincers is brought into engagement with one end of a bifurcated lever 114C pivoted at 116 to the arm 82, the construction being such that when thus operated the bifurcations of lever 114 by reason of ribs upon them engage and lift the toothed cam 90 from engagement with the teeth on the collar 94 of the shaft 88, and at the same time a flat face 118 projecting from the upper end of the lever 114 abuts against a correspondingly shaped face upon the spiral cam 90 and operates to turn cam 90 to restore it to its mid-position. The lever 114: is provided at one end with a spring pressed plunger 120, the said plunger operating, when permitted, to withdraw the face 118 from engagement with the cam 90 to permit the cam 90 to be again operated after having been restored to its initial position.

Having now fully described my invention as preferably embodied in the illustrated construction, what I claim as new, and desire to secure by Letters Patent of the United States is 1. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for imparting upper plaiting movements to the pincers, a device arranged to be moved by engagement with the work and operative connections therefrom with an element of the plaiting means.

2. A lasting machine having, in combina tion, pincers, actuating mechanism therefor including means for imparting upper plaiting movements to the pincers, a device arranged to be moved by engagement with the work, and connections between said device and said plaiting means arranged to cause movement of said device to control simultaneously the operation of the plaiting means.

3. A lasting" machine having, in combinapart arranged to cause movement of said device to operate said movable part.

5. A lasting machine having, in combination, plaiting, pincers, a device arranged to be moved by engagement with the work, and operating means for the pincers arranged to permit manually effected movement of the said device to control the direction and extent of movement of the plaiting means.

6. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for imparting plaiting movements to the pincers in different directions, a shoe rest arranged to be rotated by engagement with the work and connections between said rest and the plaiting means arranged for causing movement of said rest to control and vary the direction of movement of the plaiting means.

7. In a lasting machine, pincers, actuating mechanism therefor including means adapted to impart plaiting movements to the pincers, a shoe rest and suitable connections therefrom with the plaiting means arranged to permit movement of said rest to control the extent of movement of the plaiting means.

8. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for imparting upper plaiting movements to the pincers, and means for rendering the plaiting means operative,

comprising a device arranged to be rotated by engagement with the Work and suitable connections between said device and the plaiting means.

9. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for imparting plaiting movements to the pincers, a device arranged to be moved by engagement with the work and suitable connections therefrom with the plaiting means arranged to cause movement of said device to start the action of said plaiting means.

10. A lasting machine having, in combination, plaiting pincers, an oscillatory rock shaft, a link pivoted to one arm of the rock shaft and extending toward the axis thereof so as to form with said arm an inverted toggle, a connection from the link to the plaiting pincers and means for adjusting said link to place the connection in different degrees of eccentricity with relation to the axis of the rock shaft.

11. A lasting machine having, in combination, lasting pincers, actuating mechanism therefor including means for moving the pincers to plait the upper, and means for rendering the plaiting means operative comprising a device arranged to be moved by engagement with the work and a lever and cam connection therefrom with the plaiting means arranged to cause movement of said device to turn the cam to operate the plaiting means.

12. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for imparting upper plait 0 ing movements to the pincers, and means for starting and stopping the action of the plaiting means comprising a device arranged to be rotated by engagement with the work, a cam connected with said device and arranged to be operated by movement thereof, lever connections between the cam and said starting and stopping means, and means for returning the cam to its normal or initial position after each plaiting movement of the pincers.

13. A lasting machine having, in combination, pincers, actuating mechanism therefor including means for moving the pincers to plait the upper, a rest adapted to be rotated by the feed of the work, connections therefrom with the plaiting means arranged to control the operation thereof including a cam, a connection between the rest and the cam, a lever connected to said plaiting means and arranged to be operated by said cam, and means for returning the cam to initial position after each plaiting operation comprising a lever arranged to be actuated by the return movement of the pincers to break the said connection and to engage and turn the cam.

14. A lasting machine having, in combination, pincers, actuating mechanism therefor, a rotary shoe bottom rest comprising a feeler which is turned by the work, and connections from the feeler to control the operation of the pincers upon rotation of the rest.

15. A lasting machine having, in combination, upper overworking means, actuating mechanism therefor, a shoe bottom rest comprising a feeler which is movable by the work, and connections from the feeler through which a movement of the overworking means is made proportional to the movement of the feeler.

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

ARTHUR BATES.

Witnesses:

ELEANOR PYWELL, ARTHUR ERNEST JENAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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