US1370621A - Lasting-machine - Google Patents

Description

C.-AMMON, 1R.

LASTING MACHINE.

APPLICATION FILED JULY 24,1918.

Patented Mar. 8, 1921.

W N /J UNITED STATES PATENT oFricE.

, ASSIGNOR TO UNITED SHOE MACHINERY SEY, A CORPORATION OF NEW JERSEY.

LASTIN G-MACHIN E.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed July 24, 1918. Serial No. 246,491.

To aZZ whom it may concern:

Be it known that I, CONRAD AMMQN, Jr., a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, 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.

In lasting the ends of shoes, particularly the toe ends, ditiiculty is experienced in laymg the .upper down fiat upon the edge of the insole, hereinafter termed for convenience the sole, because of the sole or formation of plaits in the upper materials in advance of the wipers.

In order to avoid this difficulty it has been a frequent practice to reduce the fullness of the gath red material by forming one or more slits or notches in the margin of the upper. This has usually been done by the use of a portable hand tool, although it has been proposed to provide for the purpose upper cutting means associated with the lasting mechanism as a permanent part of the machine. A serious objection to the use of a hand tool for cutting the margin of the upper in the course of the lasting operation is the time spent in reaching for and nipulating the tool or in searching for the tool when it happens to be misplaced. On the other hand, combinations such as have been proposed heretofore including upper cutting means permanently associated with the lasting mechanism have, as far as I am aware, een open to objection by reason, for example. of the fact that the upper cutting means has tended to interfere with or to retard other operations on the work or has been comparatively uncertain and ineffective in the performance of its own function.

This invention provides, as an important feature, a novel organization including lastmechanism and upper cutting means permanently associated in combination and so constructed and arranged that the upper may be out quickly and effectively in the required manner and without detriment to the speed or efficiency with which the other required operations may be performed. The construction shown comprises cooperating members supported independently of the lasting mechanism at the rear of the toe end of the shoeand arranged to receive between them the margin of the upper as it is bent inwardly over the sole, the members being relatively movable in a direction transverse to the plane of the sole to cut the upper. More particularly, the illustrative construction comprises cutting means which forms a V-shaped notch in the margin of the upper, although it is to be understood that in its broader aspects the invention is not limited in respect to the character of the out which is produced.

A further feature of the invention consists in a novel combination of upper cutting means with a hold down for engaging the sole of the shoe, the construction shown comprising a holddown and cutter which are mounted for movement together into or out of position over the sole. More particularly, the illustrative constructioncomprises a holddown plate which is arranged to engage a portion of the sole over which the margin of the upper is to extend when bent inwardly by the lasting mechanism, this plate having a shearing edge to cooperate with a cutting blade which is normally positioned above the plate for manual movement toward it to cut the upper.

These and other features of the invention are pointed out in the detailed description and claims following, and in the accompanying drawings a preferable embodiment of the invention is illustrated.

in these drawings- Figure 1 is perspective view of a portion of a lasting machine including a holddown and cutter positioned in operative relation to a shoe;

Fig. 2 is a view in side elevation, partly in section through the toe lasting head of the machine, the latter being of the bed type, such as is shown in prior United States Letters Patent No. 1,018,477, .qranted Feb. 27, 1912 upon the application of M. Brook; and

Fig. 3 is a plan view of the lasted toe portion of a McKay shoe in which the upper at the apex of the toe has been notched out by the use of mechanism provided by this invention.

The present invention is shown as embodied in mechanism designed for use in connection with a lasting machine of the type disclosed in said prior patent in which the toe end of the shoe is clamped between a toe rest or support 24, Fig. 2, and a holddown, a toe lasting head 2 being mounted in the machine frame for treadle eiiected vertical movement. This lasting head includes a wiper head 8, which may be swung transversely of said lasting head by means of screw gearing); operated through a hand wheel 6, and which may be tilted about horizontal axis by means of a crank handle 10 operating screw gearing. The wiper head 8 is provided with a longitudinal here, through which a wiper operating plunger 12 is guided, one end of this plunger being connected by a link 14: with an operating handle 16 suitably pivoted to the machine frame. The other or forward end of the plunger 12 is connected to a cross bar 1 F ig. 2, which in turn has suitable operating connections (not shown) to advance and close, and retract and open, wiper carriers 20 having wiper plates 22 mounted therein.

In the operation of a machine of this type, the lasting head 2 is moved vertically by a treadle, the handle 16 being operated. to close the winers against the sides of the toe below the bottom of the last so tl at these wipers upwipe the upper over the sides of the last and when the plane of the sole is reached, are further advanced and closed to wipe the upper over the margin of the sole at the toe end of the shoe. By partially advancing and closing the wipers over the margin of the sole, as seen inv Fig. 2, the upper is held in the position in which its edge is bent to overlie the margin of the sole and may be notched to facilitate the subsequent wipinq'operation, as previously described.

Prior to the described upwiping and overwiping operation, the toe end of the last and shoe are clamped down upon the toe rest 24 by means of a holddown member which, in the machine of said prior patent, and as shown herein, is carried by a lat-- erally extending arm 28 mounted to swing about vertical standard 26 at the back of the machine frame. the arm 28 being swung; by hand to position the holddown member carried by it in proper relation o the toe of the shoe, anl treadle operated means {shown in said prior patent) being effective. to depress the standard 26 firmly to clamp the holddown against the sole and to clamp the shoe and last against the toe rest. Suitable locking means, (also shown in said patent). are employed to lock the holddown standard in its lowered position, the standard and holddown being; automatically elevated by spring means when the locking means is subsequently released and the holddown arm 28 being swung away from the shoe by coiled spring which is tensioned when the holddown is swung into position over the shoe toe.

The end of the holddown arm 28 may be recessed adjacent to its free end to receive the holddown member which or may not be, and as shown is, of the general type disclosed in Jnited States Letters Patent No. 1,188,l03, granted June 2?, 1916, upon the application of L. M. Brown. This member in the construction shown comprises an arm or plate 30, having at its forward end a depending sole rest or foot 32 which, as illustrated, presents an edge contour of approximately f shape. Adjacent to its point of connection to the arm 28, this holddown plate 30 is enlarged vertically and is provided with a centrally disposed, upstanding lug 3a embraced by the bifurcated rear end of a cutter arm 36 which is pivoted to said lug and is guided for substantially vertical movement toward and from the sole rest 32 by the inner faces of a guide bracket 88 secured to and upstanding from the plate 30. The forward end of the cutter arm 36 is laterally enlarged to present an edge contour similar to that of the sole rest 32 and is provided with oppositely disposed bores to receive the attaching screws of a cutter lane 40 hzwinp,- a contour substantially like that of the edge of the sole-engaging foot or sole rest 32, the lower cutting edge of this blade cotiperating with the upper edge of the sole rest to shear the upper materials to form a substantially V-shaped notch. The movement of the cutter blade is so limited by engagement with the bracket 38 to prevent it from injuring the sole.

The cutter arm 36 is normally held in uplifted position displaced from the plane of the lasting operation by means of a spring; anchored to the pivot pin oft lug. 3e d having; oppositely tensioned arms actrespectively against the plate 30 and the or arm to elevate the cutter arm. in using the cutting device of this invention to notch the edge of the upper in the illustrative lastingmachine, the wipers 22 operated in the usual manner to upwipe the toe of the shoe and are partially closed or the margin of the shoe sole as shown in 2. The sole rest-32 which is clamped down against the sole when the shoe is positioned for lasting, will be positioned beneath the edge of the over-bent upper extendingout from the partially closed wipers while the cutter 40, which is raised with its arm 36, will overlie the upper. 'When this point in the lasting operation has been reached, the operative, with his hand or with a suitable striking tool, such as the usual, pounding tool 42, (Fig. 2) strikes the cutter end of the arm 36 a sharp blow, torcin it downwardly through the underlying oer material which is held in position for trimming by the wipers, and shearing oil a substantially V-shaped portion, thereby notching the edge of the partially overlaid upper.

After this trimming operation, the cutter arm 36 is automatically returned to its elevated position by the spring, and the operator fully closes the wipers over the shoe toe and, if necessary, repeats the wiping operation until the upper has been fully wiped over and flattened, after which the upper is secured to the sole by suitable means, such as lasting tacks. In this subsequent lasting operation the notching eITected by the holddown cutter materially decreases the fullness of the plaits which are formed in the wiped-over upper and thus decreases the resistance offered by the upper to overwiping and restricts the size of the plaits so that they may be flattened down upon the solo. The effect of the notching operation in decreasing the plaits formed in the upper is illustrated in the plan View of the toe end of the lasted shoe, shown in Fig. 3.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. In a machine of the class described, in combination, lasting mechanism comprising end embracing wipers, and an independently operable upper cutting member permanently associated with said mechanism and normally displaced from the plane of the lasting operation, said member being mounted for operative movement toward said plane to cut the margin of the upper while the margin is held in an inwardly bent condition by the wipers.

2. In a machine of the class described, in combination, lasting mechanism comprising end embracing wipers, and an independently operable upper cutting member permanently associated with said mechanism and arranged for manually eltected upper cutting movement from a normal position of displacement from the plane of the lasting operation toward said plane while the margin of the upper is held in an inwardly bent condition by the wipers.

3. In a machine of the class described, in combination, lasting mechanism comprising end embraring wipers, an independently operable upper cutting member permanently associated with said mechanism and ar ranged for manually efiected upper cutting movement from a normal position of displacement from the plane or" the lasting op eration toward said plane while the margin of the upper is bent inwardly by the wipers, and means automatically operative to return said cutting member to its normally displaced position.

4. In a machine of the class described. in combination, lasting mechanism comprising end embracing wipers, and an upper noteh ing cutter permanently associated with said mechanism and arranged for movement from a normal position displaced from the plane of the lasting operation toward said plane to notch the edge of an upper bent over the margin of a shoe sole .by the wipers.

5. In a machine of the class described, the combination with shoe positioning means and end embracing wipers for gathering and bending the margin of the upper inwardly, of an upper cutting device supported by the machine at the rear of the toe end of the shoe and comprising a member movable in a direction transverse to the plane of the sole to sever a portion of the margin of the upper bent'inwardly by the wipers.

6. In a machine of the class described, the combination with shoe positioning means and end lasting mechanism, or an upper cutting device supported by the machine at the rear of the toe end of the shoe and comprising cooperating members extending toward the toe end of the shoe to receive between them the inwardly bent margin of the upper, said members being relatively movable in a direction transverse to the plane of the sole to out said margin.

7 In a machine of the class described, in combination, lasting mechanism including a lasting wiper, a shoe support and a holddown between which the shoe and last are clamped for lasting, and an upper cutting member connected to said holddown and an ranged for upper cutting movement toward the shoe sole and holddown from a normal position of displacement from the plane of the lasting operation.

8. In a machine of the class described, in combination, lasting mechanism including a lasting wiper, a shoe support and a holddown between which the shoe and last are clamped for lasting, said holddown having a sole-engaging foot arranged to extend under the ovcrbent upper at the edge of the sole, and a cutter connected to said holddown and arranged for movement from a normal position of displacement from the plane of the lasting operation toward the shoe sole, said cutter and holddown foot having cooperating upper shearing edges.

9. In a machine of the class described, in combination, lasting mechanism including a wiper, a shoe support and a holddown between which the last and shoe are clamped for the lasting operation, and an upper cutting member associated with said holddown and movable relatively to the holddown to cut the over-bent edge of the shoe upper.

10. In a machine of the class described, in combination, end lasting mechanism including an end wiper, a shoe support and a holddown between which the last and shoe are clamped for the lasting operation, and an upper cutting member connected to said holddown and cooperating therewith to cut the edge of the overbent upper at the end of theshoeaw M 11. In a. machine of the class described, in combination, end lasting mechanism including a wiper, a shoe support and a holddown between which the last and shoe are clamped tor the lasting operation, and an upper cutting member associated with the holddown and cobperating therewith to cut out a portion of the edge of the overbent upper at the toe end of the shoe.

12. In a machine of the class described, in combination, toe lasting mechanism includ ing a toe wiper, a toe rest and a holddown between which the last and shoe are clamped for the lasting operation, and a cutting member associated with the holddown and movable from a normal position displaced from the plane of the lasting operation'to coiiperate with said holddown to notch the edge of the overbent upper at the toe end of the shoe.

13. In a machine of-the class described, in combination, end lasting mechanism including an end wiper, a shoe support and a hold down between which the last and shoe are clamped for the lasting operation, a cutter supporting member connected to said holddown and arranged for movement with its cutter to engage and cut the edge of the over-bent upper at the end of the shoe, and means normally tending to move said member and cutter out of the plane of the lasting operation.

14. In a machine of the class described, in combination, toelasting mechanism including toe wipers, a toe rest and a holddown between which the last and shoe are clamped for the lasting operation, said holddpwn having a substantially V-shaped sole-engaging foot adapted to extend beneath the edge oi the overbent upper at the toe end of the shoe, an arm connected to said holddown and arranged for movement toward and from said foot, a cooperating substantially V-shaped cutter on said arm, and means normally tending to move said arm and cutter out of the plane of the lasting operation.

15. A device of the class described comprising a holddown having a sole engaging foot adapted to extend under the overbent portion of the shoe upper at the edge of the shoe sole, a cutter connected to said holddown for movement toward and from said foot, and means normally tending to move said cutter to a position removed from said foot and at the opposite side of the overbent upper.

16. In a machine of the class described, the combination with end lasting mechanism, of a holddown provided with a sole-engaging foot, and a cutter connected to said holddown for movement toward and from said foot and normally positioned away from said foot.

17. In a machine of the class described, the combination with end lasting mechanism,

of a holddown provided with a sole-engaging foot, and a cutter connected to said holddown for movement toward and from said foot, said cutter and foot being similarly contoured to provide cooperating shearing edges.

18. A device of the class described comprising a holddown having an arm provided with a sole-engaging toot, a cutter support mounted on said arm for movement toward and from said foot, means normally tending to move said cutter support away from said arm, and a cutter detachably mounted on said support.

19. In a machine or" the class described, the combination with a shoe support, of a holddown provided with a. sole-engaging foot, a cutter support mounted on said holddown for movement toward and from said foot, and a cutting blade detachably secured to said support, said blade and holddown foot being similarly contoured to provide cooperating shearing edges.

20. A device of the class described com' prising a holddown having a sole-engaging foot adapted to extend under the overbent edge of a shoe upper at the sole edge and having a shearing edge, an arm mounted on said holddown for movement toward and from said toot, and a cutter carried by said arm and having an edge contour similar to and cooperating with the shearing edge of said holddown foot.

21. In a machine of the class described, the combination with end embracing wipers adapted to bend the margin of the upper inwardly over the sole of a shoe, of upper cutting means supported by the machine independently of said wipers for movement in a direction transverse to the plane of the sole to sever a portion of the margin of the upper bent inwardly by the wipers.

22.'In a machine of theclass described, the combination "with shoe positioning means and end lasting mechanism, of an upper cutting device mounted for movement into or out of position over the sole of the shoe and comprising members arranged to receive the margin of the upper between them and relatively movable to out said margin.

23. In a machine of the class described, the combination with shoe positioning means and end lasting mechanism, of an upper cutting device mounted for movement into or out of position over the sole of the shoe, said device comprising a shearing member arranged to extend under the margin of the upper bent inwardly by the lasting mechanism, and a cutting blade arranged to extend over said margin and movable toward said shearing member to cut the the combination with a shoe support and mounted for movement with said holddown into or out of operative position and adapted, when in operative position, to cut the margin of the upper bent inwardly by the lasting mechanism.

25. In a machine of the class described, the combination with end lastingmechanism constructed and arranged to bend the margin or the upper inwardly over the sole of a shoe, of a holddown arranged to engage the sole, and a cutter mounted on said holddown and movable relativelyto it to cut tie inwardly bent margin of the upper.

26. In a machine of the class described, the combination with end lasting mechanism, of a holddown arranged to engage a portion of the sole of the shoe over which the margin of the upper is to extend when bent inwardly by the lasting mechanism, and a cutter mounted on said holddown for movement toward the plane of the sole to cut the inwardly bent margin of the upper.

27. In a machine of the class described,

the combination with end lasting mechanism, of a holddown including a member arranged to engage a portion of the sole of the shoe over which the margin of the upper is to extend when bent inwardly by the lasting mechanism, and a substantially V-shaped cutting blade arranged to cooperate with said member to notch a portion of the margin of the upper between said blade and member.

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

CONRAD AMMON, JR.

It is hereby certified that in Letters Patent No. 1,370,621, granted March 8, 1921, upon the application of Conrad Ammon, Jr., of Cincinnati, Ohio, for an improvernent in Lasting-Machines, errors appear in the printed specification requiring correction as follows: Page 1, line 15, after the article the insert the Words sole or; same page, line 16, strike out the Words sole or; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 26th day of April, A. D., 1921.

- [SEAL] T. E. ROBERTSON,

C'omm'issioner of Patents. CI. 12-14.

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