US180714A - Improvement in boot and shoe sole channeling machines - Google Patents

Description

SAMUEL HENSHALL, OF IEIILADELPIIIA, 5PENINSYLYANIA.

IMPRovEMENTiN actor.iixnuasno-Esoria calminitiatie MAQHinEsL Speciication,forming,part of Letters Patent N0. 180,37'1145datedA August 8,1876 ;4 applicationv filed Ju1y, 5`,1877,6. v

To all whom it may concern:

Be it known that I, SANIUEL HENSHALL, of Bhiladelphia, -Pennsylvania, have invented certain Improvements in Channeling 1Macllines, of which they'followingisafspecilica tion The object of my invention is to so construct a machine for channeling the soles of boots and shoes that the depth of the channel is not governed by the depth to which the feed-wheel penetrates the sole; and this object I attain in the manner which I will now proceed to describe, reference being had to the accompanying drawing, in Which- Figure 1 is a side viewof my improved channeling-machine; Fig. 2, a section on the line 1 2 pFig. 3, a front View ofthe upper part of the machine, with the feed-wheel removed; Fig. 4, an enlarged view of part of the machine, and Fig. 5 a diagram illustrating the edge of the finished sole.

A is the base or table of the machine, in bearings on which turns the shaft B,'carrying at its front end a bevel-wheel, a, which gears into a pinion, b, formed on or secured tof'the under side Aof the rotary bed c, on which the Work rests as it is being operated upon. To a standard, C, at the rear end of the table A, is hung the rear end of an arm, D, having bearings for a shaft, E, which carries at its front end a toothed or roughened feed-wheel, d. 1t should be understood that the shafts B and E are so geared together, and that the wheel d is of such a diameter, that the periphery of the said wheel and thatipart of the face of the table C immediately below the wheel travel at the same speed.

Two cutting-knives are employed, as usualthe knife e, for cutting the channel x in the sole, and the knife f,`for cutting the groove y, Fig. 5. The knife e, instead of being connected directly to the arm D, as usual, is secured to the lower end of a bar, I, which is adapted to a guiding-slot out in the front end of the arm D, and has a threaded stem, g, passing through fa bracket, g', upon the arm, and provided above with a thumb-nut, h. Around the stem g is coiled a spring, z', which bears at one end upon the bracket h, and at the other upon a nuwzadapted to nearadedfpaion.ofthe stein.

'Byi operating l.the `thumb-Init h, the sliding bar, and consequently,the channelingfknitee,

canbe raisedor lowered y at pleasure, and by operating the nutjt the pressure-of thespring,

t upon the slide can be easily regulated.

The sliding bar J, which carries the grooving-knife f, is adapted to a slot in a fixed frame, K, at the front of the machine, this frame having arms L, which serve to steady the arm D in its vibrating movement. This vibrating movement of the arm D is necessary, partly on account of irregularities in the thickness of the soles to be operated upon, and partly because the front end of the arm has to b'e elevated to permit the introduction and Withdrawal of the work. The elevation of the outer end of the arm for the latter purpose is effected, in the present instance, by mea-ns of a lever, M, the long arm of which is arranged' so as to be readily depressed either by hand or treadle, while its short arm engages with a pin, k, on an arm, N, hung to the arm D, so that by depressing the long arm of the lever the outer end of said arm D will be` raised, and on releasing the lever the said outer end will be depressed.

`In order to insure the raising of the sliding bar J, which carries the grooving-knfe f, at the same time that the arm D is raised, I use a lever, P, hung to the frame K, the short arm of the lever engaging with a pin, m, on the bar J, while its long arm is acted upon by a setscrew, a, carried by an arm ofthe lever M.

Both the sliding barJ and arm D are acted upon by springs It, which tendjto maintain said bar and arm in their lowest positions, the downward movement of the bar J being limited by a set-screw, s, while that of the arm D is determined by the lowerend of its arm N coming into contact with the table A.

In ordinary channeling-machines, the channeling-knife e is rigidly carried by the arm D,

so that the depth to which it enters the lea-ther is governed merely by the depth to which the feed-wheel penetrates, the result being a deep cut when the leather is soft, and a shallow cut when. the leather is hard. Another objection to the ordinary machine is, that the channel@ ing-knife must be adjusted to suit the dil'erent thicknesses of soles, so that the'attention of a skilled Workman is required in running the machine. u

It will be seen that in my machine the bar I, carrying the hanneling-knife, is, in its vertical movement, entirely independent of the wheel d, the depth of the cut 4made by the knife depending solely upon the extent to which the said knife projects beyond the end of the bar,-which may be furnished with an anti-friction roller, so that the sole will move freely beneath the bar without being indented thereby. It will also b e observed that, as the bar I is acted upon by a spring, it will readily yield to suit different thicknesses of soles, the usual tedious adjustment being entirely dispensed with. The depth of the groove out by the knife f may also be regulated by adjusting the set-screw s so as to limit the -down- Ward movement of the 'bar J.

' Witnesses:

I claim as .my invention- 1. In a channeling-machine, the combination of the arm carrying the feed-wheel with the channeling-knife, arranged to be adjusted vertically independently of the said feed-Wheel during the operation of the machine, as set forth.

2. The combination of the arm D, carrying the feed-Wheel d, with the spring sliding bar I, carrying the channeling-knife.

3. The combination of the lever M and spring sliding bar J with the intermediate lever P.

4. The combination of the levers M and P with the ad justing-screw n, as set forth.

In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

SAMUEL HEN SHALL.

HUBERT HoWsoN, HARRY SMITH.

Images