US1246300A - Pulling-over machine. - Google Patents

Description

w. P. MILLS II c. M. BAGSHAW.

PULLING-OVER MACHINE.

APPLICATION FILED APR. 18. 1916.

1,246,300. Patented Nov. 13,1917.

fizz/621301 8 UNITED STATES PATENT onnron.

WILLIAM PHILIP MILLS AND CHARLES T/IABTIN BAG SHAW, OF LEICESTER, ENGLAND,

ASSIGNORS TO GIMSON .85 CO. (LEICESTER) LIMITED, OF LEICESTEE ENGLAND, A

CORPORATION OF GREAT BRITAIN.

PULLING-OVER MACHINE.

Specification of Letters Patent. Patented N 13, 191% Application filed April 18, 1916. Serial No. 92,310.

To all whom it may concern Be it known that we, WILLIAM PHILIP MILLS and CHARLES h/IARTIN BAGSHAW, both subjects of the King of Great Britain, citizens of Leicester, in the county of Leicester, England, residing at Leicester, in the county of Leicester, England, have invented certain new and useful Improvements in or Relating to Pulling-Over Machines, of which the following is a specification This invention relates to pulling-over machines employed in the manufacture of boots and shoes, and comprises an improvement therein intended more especially to enable such machines to be employed for pullingover work made on the turn-shoe principle, although it may in some cases be of use to facilitate the pulling-over operation on or dinary classes of work.

In turn-shoe work, as is well known, a marginal portion of the sole projects beyond the edge of the last, and in carrying out the pulling-over operation care is necessary in ordervto avoid either bending the projecting edge or pulling the sole away from the last. The projecting marginal edge has presented a diflicnlty to the mechanical pulling-over of turn-shoe work and one of the objects of the present invention is to overcome this and render possible the mechanical pullingover of a turn-shoe without detriment to the marginal edge of the sole.

A further object of the invention is to provide, for use when pulling-over ordinary work, means tosupport the edge of the insole and prevent it being pulled away from the last during the straining of the upper over the last. Such means are intended to be of service when insoles of soft material are used and where there is a tendency for the upper to displace the insole.

' For the aforesaid purposes the invention comprises a device or means in the formof a support or rest adapted to occupy a posltion in contact with the marginal face of the sole or insole and, during the upper straining action caused by the movement of the last or pincers or both, to support or hold the said marginal portion of the sole or insole against movement which otherwise might be imparted thereto by the frictional contact of the upper therewith and such as would tend to crush, bend or otherwise distort the marginal edge.

Conveniently the said device or means may take the form of a lip situated in front of the pincer-jaws so as to engage the sole or insole in the region of the pull of the pincers upon the upper. The device or means may be associated with either the side pincers or toe pincers, or with both side and toe pincers; In some cases it may be suflicient to employ the device at the toe only, as for instance in turn-shoe work where the projection of the sole beyond the edge of the last is greater at the toe than at the sides, but the number and disposition of the devices employed will depend very largely upon the class of work being operated upon The support or rest may be mounted in such a manner as to be capable of certain movements. For instance, itmay normally occupy an operative position under, over or against the marginal face of the sole or insole according to the position of the work in the machine, to maintain the edge of the said sole as aforesaid during the action of the pincers, after which when the pincers move inward to impart the indraw motion to the upper, the said device may move away from the normal position to allow the said operation of the pincers to take place. The

said movement of the device from the normal position may take place in one direction as for-instance it may simply move inward in front of the pincers; or on the other hand it may move in more than one direction as is necessary when the sole is cut or shouldered down around the margin as in turnshoe work, in which case the 11p or rest-normally engages the reduced part to support it and then may move away from the sole to clear the shoulder before moving inward in front of the pincers.

The movement or movements of the supportinglip or rest may. and preferably do, take place automatically with the movements of thepincers during the indraw motion likewise the reverse movement or movements of said device to return same to the normal position may, and preferably do, take place automatically.

Alternatively however. manual means or a treadle or some equivalent mechanical ar,

. plates.

rangement may be employed to effect the change in position of the support or rest.

In further describing theinvention reference will be made to the accompanying drawings, in which:

Figure 1 is a side elevation of a convenient form of the device of this invention applied to the wiper of a pulling-over machine pincer mechanism.

Fig. 2 is a plan of the same.

Fig. 3 is a partly sectional elevation showing the device in associationwith the work.

In the drawing, like parts are designated by the same reference .characters in all the figures.

i In the concrete form of the invention illustrated in the drawing, the support or rest 'is combined with the wiper of the pincer mechanism of a pulling-over machineof the kind described in our application for U. S. Patent, Serial Number 7661, filed February 12th, 1915.

The said support consists of a lip or plate 1 attached to the forward ends of a pair of slides 2 situated one on each side of the wiper 3 and movable to and fro within side plates 4 attached to the wiper by screws'5.

The side plates at have longitudinal slots 6, and pins 7 on the slides 2 extend through the said slots and have attached thereto corresponding ends of a pair of tension springs 8. The opposite ends of the springs are attachedto pins 9 on the plates 41 said springs serving to normally draw the slides 2 forward and hold the lip 1 a certain distance from the operative end 10 of the wiper 3, which distance may be varied to suit requirements by an adjustable slotted stop 11 attached to one of the slides 2 by a screw 12.

As shown in Figs. 2 and 3, the lip 1 is shaped to embrace the pincer jaws 13, thus enabling the upper edge 14, which comes under and serves to support the sole margin 15, to be brought closeup against-the back of the adjacent pincerjaw if neces sary.

Each slide 2 is supported in the side plate 4 by projections 16 and 17 (Figs. 1 and 3) these being situated at opposite ends of the The lower edge 18 of each slide 2 which rests upon the projections 16, '17 is formed with an incline at 19 so that when the slides move backward in the plates 4: and the incline 19 passes over the projection 16, the front end of the slides and consequently the lip 1 carried bv same, will, for a purpose hereinafter described, fall as indicated by the broken lines in Fig. 1. The slides 2 may fall by their own weight or under the influence of a spring, and when the springs 8 return the slides 2 to the normal forward position after they have yielded, the inclines 19 ride over the projection 16 and raise the slides and lip. j 7

\Vhen the device is used for turn shoe Work as shown in Fig. 3, it willbe seen that normally the lip 1 engages the sole 20 underneath the projecting marginal edge 15 thereof, so that when the pincer jaws 13 close upon and draw down the upper 21 to stretch it over the last 22, the lip maintains the sole edge in place and prevents distortion or bending of the same which m ght otherwise be caused by the frictional engagement of the upper therewith. 7

"After the pincers have descended and strained the upper over the last and the pincer mechanism 23'commences to move inward, in the direction indicated by the arrow in Fig. 3, to wipethe upper 21 under the sole 20, the shoulderi'24 on the sole resists inward movement'of the lip 1 and consequently causes the slides 2 to remain stationary relatively to the inwardly moving wiper 3 and supports 16 and 17 until the projections 16 pass from under the inclines 19 whereuponthe slides move in. a direction at right angles to the sliding movement 2'. 6. they fall as shown by broken lines in Fig. l, to bring the lip 1 below the shoulder 24. When, as just-described,thelip 1 passes out of contact with the shoulder 24 the springs 8, which have been tensioned by the yielding of the slides, act to impel'Qthe slides forward again so that the lip '1- passes under the sole 20 and thereafter moves inward in company with but in advance of the pincers and wiper.

The device herein described mayalso be employed in the 1 mechanical pulling-over operation in connection with ordinary work such for instance as when insoles of soft or poor quality material are used, in which case the lip 1 normally situated under the edge of the insole will serve to support same and hold it against the bottom of the last while the pincers stretch'the upper, after,

,which the said lip will move inward under the insole during thewiping actionjof the pincer mechanism.

The hp 1 is preferably adjustable on the slides 2 for which purpose it is fulcrumed at 25 and has radial slots '26 through which the fastening screws 27 pass.

j The inventionis not to be limited to the concrete form of device herein described with reference to the accompanying draw-' scope of the invention.

\Vhat we claim then is 1 1. In a P11111110 over machine, a pincer mechanism .havmg a wiping in movement,

a gripper device therein, and a member carried by said mechanism to engage the margmal edge of the sole of the work and hold it against the last, and resist the action of the gripper device during the operation of pulling the upper over the last, said memher, when the wiping-in operation takes place, being arranged to move away from the operative position.

2. In a pulling-over machine, a pincer mechanism, a lip adapted to engage the marginal edge of the sole or insole of the work, slides movably mounted in the pincer mechanism and carrying said lip, and springs to control the movement of said slides, for the purpose described.

3. In a pulling-over machine, a pincer mechanism, a lip adapted to engage the marginal edge of the sole or insole of the work, slides movably mounted in the pincer mechanism and carrying said lip, springs to control the movement of said slides, projections supporting said slides, and inclines on the slides adapted when riding over the projections to cause a movement of the slides at right angles to their sliding movement for the purpose described.

i. In a pulling-over machine, a pincer mechanism, a Wiper therein, a lip adapted to engage the marginal edge of the sole or insole of the work, slides carrying said lip, plates attached to the Wiper, projections on said plates to support the slides, springs to control the movement of the slides, and inclines on the slides adapted to cause a movement of the slides at right angles to their sliding movement, for the purpose described.

5. In a pulling-over machine, a pincer mechanism, a wiper therein, a lip adapted to engage the marginal edge of the sole or insole of the work, slides carrying said lip, plates attached to the wiper, projections on said plates to support the slides, springs to control the movement of the slides, an adjustable stop to determine the normal position of the lip, and inclines 0n the slides adapted to cause a movement of the slides at right angles to their sliding movement, for the purpose described.

Dated this 17th day of March 1916.

In testimony whereof we afliX our signatures in presence of two witnesses.

IVILLIAM PHILIP MILLS. CHARLES MARTIN BAGSHAW. Witnesses E. N. LEWIS, GEORGE LESTER.

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

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