US2098243A - Shoe beating machine - Google Patents

Description

Nov. 9, 1937.

c. E. HOOD SHOE BEATING MACHINE Filed May 4, 193e wwf/V755 KM @977(- Patented Nov. 9, 1937 srars SHOE BEATING MACHINE Application May 4, 1936, serial No. .irnos In Great Britain March 6, 1936 6 Claims.

This invention relates to machines having heated rotary members and is herein illustrated as embodied in a machine for beating the bottoms of lasted shoes to prepare them for the sole-laying operation.

Prior to attaching soles to shoes it has been customary to trim the lasted over portions of the uppers and to smooth out the wrinkles therein by beating the'shoe bottoms in order that they may be suciently smooth to t closely to the soles when the latter are attached. It is an object of the present invention to provide an improved pounding machine which will perform the operation referred to effectively and at the same time will be simple and economical in its construction and operation.

To this end and as shown, the invention provides a shaft upon which is mounted a beating roll having a recess in an end portion thereof and a friction member arranged to engage the walls of the recess for the purpose of heating the roll. Preferably and as illustrated, there is provided resilient means for forcing the friction member into the recess, said means being adjustable to vary the pressure of the member against the roll thereby to control the amount of heat generated. This mechanism is advantageous in that it provides a comparatively simple and inexpensive means for heating the roll.y

These and other features of the invention are illustrated in the accompanying drawing, described in the following detailed specification, and will be pointed out in the claims.

In the drawing,

Fig. 1 is a, plan View, partly in section, of a machine embodying one form of my invention;

Fig. 2 is a detail View illustrating the operation of the shank pounding roll; and

Fig. 3 is a detail view illustrating the operation of the forepart pounding roll.

As illustrated in Fig. 1 the machine comprises a horizontal shaft Ill mounted in bearings l2 in a frame I4, there being a pulley I6 for driving a shaft. The shaft carries a forepart pounding roll I8, a shank pounding roll 20, and a trimming wheel 22. The forepart pounding roll i8 is generally cylindrical in shape but has its periphery slabbed off to form a plurality of fiat faces 24 which when the roll is in operation constitute pounding members. 'Ihe roll is secured to the`shaft for rotation therewith by means of a pin 26. KK

In operating upon\the forepart of a shoe in View of the wrinkles formed partly around the toe during the lasting operatioxnit is sometimes difficult to smooth out the lastedV over marginal I n portions of the upper. Tov overcome this diniculty the present machine is provided with means for heating the forepart pounding roll, thereby to facilitate the pounding operation. ToA this end the roll i8 is provided with recesses 28 in the ends thereof, the walls of which are adapted to be engaged by members 363 of ber or other suitable material which, during the rocooperating'recesses and friction members are herein illustrated as being conical, but the use of hemispherical or other shapes is contemplated. The friction members St `are slidably mounted upon the shaft Il) and are arranged to be forced inwardly into frictional engagement with the walls of the recesses 28. To accomplish this, the members Vit have outwardly extending hubs 3l secured by pins 32 to yokes 33 carried by levers 3i pivotally mounted at 3a upon the machine frame. The outer ends of the levers 35i are normally forced away from each other by a spring 38 mounted upon a rod t@ the ends oi' which lextend through openings 152 and til in the levers. spring is operative to force yokes 33 toward each other moving the friction members 3@ inwardly into frictional engagement with the walls of the recesses in the roll.

To regulate the pressure exerted by the friction members against the roll and, consequently, the amount of heat generated, there is provided a nut i6 on a screw threaded portion 48 of the rod 40. This nut can be readily adjusted to vary the pressure of the spring 38. The rod t* also carries nuts 5i! which can be adjusted along the screw thread 4S to take up the slack between the two ends of the levers 34.

The shank beating roll 2li is of similar construction to the roll i8 in that it has a plurality of flat work-engaging surfaces 52. This roll, however, is smaller in size than the roll i8 and ordinarily need not be provided with any means for heating it.

The trimming roll 22 at the end of the shaft il)k may be of any suitable construction such as that of a type which has come into general use and which comprises a felt roll having a sandpaper strip secured to its periphery. Such a roll is adapted for use in removing surplus upper material from the shoe prior to the beating operation.

The machine is provided with a work rest 54 positioned adjacent to the roll I8 adapted to This arrangement is such that the 2 i tation of the roll generate heat by friction. The `10 support Vthe shoe when the forepart is being operated upon. Y

In the operation of the machine the lasted shoe is presented to the trimming roll 22 to trim oif surplus portions of the lasted over margins of the upper and the shoe is then presented to the forepart pounding roll I8 as illustrated in Fig. 3 in which the shoe 56 is presented to the underside of Ythe roll so that the faces of the roll will move inwardly across marginal por-,

tions 58 of the upperrtoY smooth them out. The

heat which is generated by the frictional engagement of the memberswith the roll will facilitate this operation.V beaten out the shoe is then presented to the,` shank pounding` tool V2l) as illustrated in Fig.A 2 to smooth out the shank portion of the machine. Having described the invention, what I claim as new and desire to secure Vby Letters Patent of the United States is: Y1.*A machine for operating upon shoes comprising a shaft, a smoothing roll secured to the shaft and having a recess in one end thereof,

and means for heating theroll comprising an annular member movable longitudinallyrof the shaft, and means for forcing-the member into frictional engagement withthe Wall'of the recess. y

2V. A machine for operating upon shoesV comprising a shaft, a roll secured to the shaft and having a recess therein surrounding the shaft, an annular member surrounding the shaft and mounted Yfor movement axially of the recess, and means for forcing the member into frictional engagement with the wall of the recess to heat the roll.

3. A machine for operating upon shoes comprising a shaft, a beating roll secured to the After the forepart is shaft for rotation Vtherewith and having a conoidalV recess in an end thereof, a conoidal friction member surrounding the shaft and mounted for movement longitudinally thereof, and resilient means for forcing the conoidal member into frictional engagement with the wall of the recess.l

4. A machine Yfor operating upon shoes comprising a shaft, a roll secured to the shaft for rotation therewith and having at each end thereof aconoidal recess extending coaxially of the shaft, fconoidal friction members mounted coaxially with the shaft and arranged for move- Yment into' the recesses, VVand resilient means for forcing the conoidalmembers into frictional engagement with the Walls ofthe recesses.

5. A machine for operating upon shoes comprising arotatable shaft, a roll mounted upon the shaft and4 having recesses in the ends thereof, apair of levers pivotally mounted upon the -bers secured to said end portions, a spring positioned between the other ends of the levers operative to force thefriction members into engagement with the ends of the roll, and means for adjusting the pressure exerted by the spring.

CHARLES E. 'HOOD.

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