US89007A - Improvement in lasting- boots and shoes - Google Patents

Description

ital 55mm @met the Letters Patent No. 89,007, dated April 20, 1869.

IMPROVEMENT IN LASTING- BOOTS AND SHOES.

The Schedule referred to in these Letters Patentl and making part of the Bam.

To all 'whom it may concern:

Be it known that I, IsAAc N. BEALs, of North Bridgewater, in the county of Plymouth, and State of Massachusetts, have invented an Improvement in Lasting Boots and Shoes; and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this speciiatiou, is a description'of my-invention, suiiicient to enable those skilled in the art to practise it.

In that part of the manufacture of boots and shoes which consists in 1a.sting, that is to say, in preparing the vamp and inner sole for application ofthe cuter sole,it is customaryto tack the innner sole upon a last, over which last the upper or vamp is drawn, and the edges of the vamp are then drawn over the edge of the inner sole, and tacked in place with lastingtacks, thus forming up the shoe, so that upon placing the outer sole in position, it may be pegged by a series of pegs driven through the three-lapped edges of the inner sole, vamp, and outer sole.

Now, as the edge ofthe vamp has to be stretched considerably, and strained to get it into position along the hollow of the shank, the leather is apt to be torn by the lasting-pincers, and the stock is marred or marked by them.

Moreover, the presence of one jaw of the pincers between the vamp and the inner sole, prevents the vamp from lying close down to the sole, as it is desirable that it should do, in order toA make the boot or shoe smooth in the shank.

My invention has reference to the means of drawing the edge of the vamp' down into the shank of the last, or over the inner sole at the shank, so as to stretch the edge of the vamp into'place, 'without liability vof tearing or marring the stock, and so as to insure smoothness of the boot at the shank; and

The invention consists in combining with the flexible band, or strap under which the last is slipped, in the process of lasting, a flexible tongue, which is at tached, at one end, to the band, while its-other end is slipped under the edge ofthe vamp at the shank, one end of the band being attached to a-treadle, and the other end to a stout spring, so that pressure upon the treadle will first press down the edge of the vamp against the end of the flexible tongue-piece, the edge thus clamped between the strap and the tongue heilig then drawn down by the descent of the side of the strap to which the treadle is attached, the tongue being gradually drawn out from under the vamp, by the movement of the strap, but not until after the edge of the vamp has been well stretched over into the shank of the last.

The drawing represents aknee, or last-supporting block, showing a lasting-strap embodying my improvement.

a denotes the block, mounted upon a suitable stand, or bench, and constructed in the usual manner, or so as to support the last, upon which is the vamp to be lasted.

b denotes the lasting-strap, passing over the block a., and attached, at one end, to a suitable lever, or treadle, c, and at its other Aend to the upper end of spring d, whose lower end 'is fastened to a stationary pin.

On the inner side of the strap is fastened one end of the tongue-piece e, the upper end being free, or loose, and extending over or beyond the to'p'of the block c. y

This piece is made of somewhat rigid stock, so that it can readily be pushed between the edge of the vamp and the last; and it may be made of metal, or of other suitable material possessing lflexibility sufticient toy allow it to bend over the edge of the block, and down to the surface of the last, and rigidity` suicient to enable it to be pushed under the vamp without curling.

The inner sole being tacked to the face of the last, and the vamp being drawn' over the last, the last is placed upon the block, and the strap thrown over it, as seen in the drawing, (the toe and heel ofthe vamp being preferably rst lasted over the edge of the inner sole,) the strap passing over the last at the shank.

' The point, or upper end of the tongue is now pushed under the edge of the vamp, as seen in the drawing.

Downward pressure being now applied to the vlever c, the edge of the vamp will be pinched between and.

by the strap and tongue-piece, and as the strap is stretching, the edge will'be drawn down in the shank of the last, until iinally the tongue is drawn from under the vamp by the yield of the spring (l, the strap then serving, however, by .its tightness, to retain the edge of the vamp in the shank until it is tacked.

The stretchof the strap might be suicient, in itself,- to release the finger from the vamp, or a strap might be made elastic, but I consider the employment of the spring as preferable.

I claim, in combination with alasting-strap, ailexible tongue, operating with the strap, to draw the edge of the vamp over the shank of the boot, substantially as described.

I also claim, in combination with the strap and tongue, the spring d, substantially as and for the purpose set forth.

ISAAC N. BEALS. Witnesses:

ZENAs L. MARsToN, JOSEPH C. GooMBs.

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