US103792A - Improvement in boot and shoe-heeling machines - Google Patents

Description

dnitrd States @met .dtjijita WILLIAM RSPINNEY, O LYNN, MASSACHUSETTS, ASSIGNOR T0 GORDON y MCKAY, TRUSTEE.

Letters Patent No. 103,792, dated May 31, 1870.

IMPROVEMENT IN BOOT AND SHOEHEELING MACHINES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern.-

Be it known that I, WILLIAM F. SPINNEY, of Lynn, in the county of Essex and State of Massacbusets, have invented an Improvement in Heeling- Machines; and I do hereby declare that the following, taken' in connection with the drawing which accompanies and forms part of this specification, is a description of my invention sufiicient to enable those skilled in the art to practice it..

In nailing heels to boots and' shoes by machinery, it has heretofore been the practice, where the nail-heads have been covered from view by a tread-lift of leather, to use drivers of suol' length as not to' come to the surface ofthe block containing the drivers, which surface is the one acting upon the lift of the heel ,through which the nails enter, and between which and the opposed surface of the last within the boot or shoe the material of the heel is compressed, as explained in the application for United States Letters Patent by Charles W. Glidden, executed as of even date herewith. The nails are thusleft projecting beyond the surface of the lift-through which they enter, say, about the tenth of an inch, and the driver-block is lowered, and the outer lift placed thereon, and the support for the boot or shoe is raised av distance slighly less than the thickness of said outer lift, which-is then forced upon the projecting nail-heads when the driver-block is raised. But, as there are holes in the driver-block in which the drivers move, and into which the nailsare entered before they are driven, it follows, in the act of forcing the outer tread-lift of the heel upon the nails, that the leather is pushed into said holes, leaving a bunch or projection of leather directly over each nail-head on the tread-surface of the tread-lift, which bunches or projections have to be cut olf, and the surface finished.

Now, by my invention, I avoid the format-ion of suoli bunches, and, consequently, tho need of iinishing the tread-surface of the tread-lift; and I accomplish this` by placing upon the upper surface of the driver-block, or upon the uppersurface of any extensiompiece that is secured thereunto, a flat smooth plate, after the driver-block is lowered and after the nails have been driven into the heel, but left projecting slightly, as bcfore explained. The outer tread-lift, that is to bc forced upon the projecting nail-heads, is then placed onsaid plate, the boot or shoe-support is raised a dis-y tance slightly less than the thickness of said plate and the thickness of the tread-lift, and said lift is then raised, and forced upon'the projecting nail-heads by the act of raising the driver-block; and it will be found that the surface of the tread-lift is left smooth and free from bunches or projections.

This invention is not confined, in its application, to any specific heel-nailing machine, though I shall herein describe it in connection with so much of a It will now be secu how, if a heel is placed onj, or

on the driver-block, with drivers adj usted as described, and with nails over the drivers, and with a shoe propd erly sustained over the heel, the nails will, when the drivers are forced upward, be driven through the lifts of the heel into the sole, and how the lifts of thc heel, must be compressed together by the action of the u-p i per surface of j against the lift, through which thc nails enter; and it will also be seen that the nail-heads will he left projecting beyond thgJ lift, through which the nails enter just the distance which the drivers fall short of comingto the surface, which supports and acts against said lift. I add to this arrangement the plate u', -which I can place over the upper surface ofj, and arrange it, preferably, as shown, by pivoting the plate u', so that I can swing it over thc nail and driverholes, as in fig. 3, or so that Ican uncover them, as in tig. 2. i

In driving the nails, I leave plate u in the position seen in fig. 2, and then I lower platej and the parts connected therewith, swing plate u to the position seen in fig. 3, and place thereon a lift of leather, which makes the tread of a heel, with the breast of the tread-lift against a gauge-projection on the plate, which projection is plainly seen in the drawing.

"lo `bring the breast-gauge projection to the right position on plate j, I insert therein a register-pim c',

which checks the plate u at the proper place, orregisters it, the slot at w embracing the piu t" when plate j is in position for receiving the tread-lift. Then I raise the support of thcshoe a distance about equal to or slightly less than the thickness of the tread-lift and plate u', and cause plate j and parts connected therewith torise, which results in the forcing of thc tread-lift upon the projecting nails, which, however, do not project far enough to come throughthe lift, so

that thc nail-l-llea'ds are completely covered, and the tread-lift is securely attached to and made part of thc heel.

With the drivers It falling short of the surface of j, it will be seen that the leather is compressed at the time the nails are driven, so that the heel is just as Also, the construction of'said plate with a registergauge, when said plate is provided with means Ifor registering its position on the piece j, or the driverblock.

WM. F. SPINNEY,

C. W. MELGHER,

\ Witnesses:

| J AMES. PURINTON.

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