US897438A - Channeling-machine. - Google Patents

Description

No. 897,438. PATENTED SEPT. 1, 1908.

E. A; WEBSTER. CHANNELING MACHINE.

APPLIOATIOH FILED 8BP'I.18,1907.

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No. 897,438. PATENT D SEPT. 1, 190a.

, E. A. WEBSTER.

OHANNELING MACHINE.

APPLICATION FILED SEPT. 18, 1907.

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I Figs. 2 and 3 are detail UNITED STATES PATENT OFFICE.

EDWIN A. WEBSTER, OF GROVELAND, MASSACHUSETTS, ASSIGNOR TO HAVERHILL OHANNELING MACHINE (10., OF HAVERHILL, MASSACHUSETTS, A CORPORATION OF MAINE.

CHANNE LING-MACHINE.

Application filed. September 18, 1907.

To all whom it may concern:

Be it known that I, EDWIN A. WEBSTER, of Groveland, county of Essex, State of Massachusetts, have invented an Improvement in Channeling-Machincs, of which the following description, in U(.)Ill1(5('-i1l0l'l with the accompanying drawii'igs, is a specification, like characters on the drawings representing like parts.

This invention relates to shoe channeling machines of the character sh own in my pending applications Serial Nos. 297097 and 373762, in which a reciprocating knife acts to cut the channel in the sole at a point more or less remote from the edge of the sole, and a rotary knife, acts to form the upper receiving seat on the edge portion thereof. While said reclprocating knife operates satisfactorily, at the reciprocation thereof involves a num er of WOIklng parts which are more or less likely to get out of order. When stationary or drag knives have been employed in channel cutting machines it has een necessary, so far as I am aware, to provide a toothed feed wheel for feeding the sole, which tears the between substance, and to avoid using which was my original object.

The object of the present invention is not only to avoid using the toothed feed wheel, but also to avoid the disadvantage of the movable vibrating knife. In other words, the invention has for its object to provide means for holding and feeding the sole which .Will not in any way injure the sole and will operate efficiently in connection with a fixed knife for cutting the channel. I accomplish this object by the means shown in the accompanying drawing, in which,

Figure 1 1s a front elevation of a sole channeling machine provided with my invention.

lan views of portions of the feeding and c annel mechanism. Fig. 4 is a left end elevation of the machine. Figs. 5, 6 and 7 are detail views of portions of the sole feeding and holding mechanism.

As shown in the drawing, the frame 1 has a feed shaft 2 journaled therein, said feed shaft having a bevel gear 3 at its end which operates the usual horizontally disposed table or work support 4, causing the atter to rotate about an approximately vertical axis. .Said shaft 2 is provided with a gear 5 which meshes with the gear 6 mounted on i the shaft 7, said shaft 7 having a knurled feed wheel 8 at its end. A shaft 9, having its axis Specification of Letters Patent.

Patented Sept. 1, 1908.

Serial No. 393,483.

parallel to and in the vertical plane of theaxis of shaft 7, is journaled in a sup ort 10 mounted. on the frame and is provide with a rotary cutter or knife 11 at its end, said outter being adapted to form the upper receiving seat at the edge of the sole, and. rotating about an axis which is approximately perpei'idicular to the edge of the sole as it is fed and parallel to its surface.

An edge guard 12 is mounted adjacent one edge of the table directly beneath the cutter. A head. 13 is )ivoted on the trunnions 14 mounted on tl ie frame of the machine, a spring 18 being provided to hold it in its normal position, and a su port 15 is slidably mounted in the upper sire of said head, so that said sup ort may be moved u wardly and to the right by cam 15 to with raw the knife from the channel. A plate 16 is mounted to slide vertically in dovetail grooves in the end of the support 15 and a spring 17, mounted on a rod 18, acts to force an arm 19, on said slide, yieldingly against a stop nut 19, on said rod. A clamping head 20 is slidably mounted on the lower end of said slide 16 and a channeling knife 21 is mounted in'an oblique osition in said head, said knife having an ob iqu'ely disposed cutting edge portion 21 at its end against which the sole is fed to cut an inclined slit in the sole in the ordinary manner. The head 20 is adapted to be adjusted forwardly and rearwardly to vary the position thereof with relation to the point of contact of the roll 8 with the sole and to be clamped in its adjusted position by bolt 20. An arm 22 is mounted on the head 20 and is adapted to be adjusted vertically thereon by means of the bolt 23, and to be clam ed in its adjusted position by bolt 23. ii .presser roll 24 is ournaled in the lower end of the arm 22 directly in front of the cutting edge of the knife 2]., and as close thereto as is practicable, said roll being so adjusted with relation to the lower end of the knife that it will be pressed firmly against the top of a sole held on the table when the knife has entered the sole to the required depth.

A gear 25 is mounted on the end of shaft 7 close to the face of the feed wheel 8, and concentric therewith, and said gear is ada ted to mesh with a gear 26, mounted on a s aft 27, journaled in an arm 28, integral with the head 13. The gear 29 is also mounted on the shaft 27 and is disposed to mesh with the deepening of the channel is measure,

gear mounted on a shaft 3] journaled in an extension 28 of the arm 28, and a roll 32, which may be either smooth faced or knurled, is also secured on said shaft, the face of said '5 roll being held at the same distance from the table as the roll 8 and, as it is mounted on the head 13, it is adapted to yield against the action. of spring 13 with said roll 8. Said roll 32 is disposed directly in the rear of the 10 cutting portion of the knife 21 and also directly in the rear of the roll 24.

In ordinary practice a fixed channeling knife, which extends obliquely into the sole to out a channel and is beveled, as it neces- 15 sarily is, on its upper side, tends strongly to lift the sole from the table on which the bottom of the sole rests. The obvious result, in case of any lifting of the sole from the table, is a deepening of the channel and such highly objectionable, as it is obviouslv undesirable to have the channel any deeper than is absolutely necessary. Moreover, any lifting of the sole from the supporting table, in a large prevents said table from acting to feed the sole, so that, when the sole is lifted up in this manner, not only is the channel deepened to an objectionable extent, but the power required to feed the sole is increased,

30 while the frictionon the'sole acting to feed it is appreciably diminished.

With the arrangement above described, the roll 24 is held rigidly with the knife and acts as a gage to prevent the portion of the '35- sole directly in front of the knife from being lifted to even an appreciable extent. In practice the stop nut 19 is so adjusted that the roll 24 will be pressed against the sole with considerable force by the spring 17, so

40 that said roll presses the portion of the sole directly beneath it firmly against the table, thus increasing the frictional engagement of the table with the bottom of the sole, and causing the table to act more effectively in feeding the sole. By employing the roll 24 on the end of the presser arm 22 the pressing action above described may be accomplished without impeding the feeding action to a material extent.

In channeling a sole with a fixed knife there is a tendency to cause the sole to lift or buckle in the rear of the knife even when it is held down firmly in front and at the end of the knife, as by rolls 24 and. 8. Such lift ing is not only likely to increase the de th of the channel to an undesirable extent, ut it also seriously interferes with the accurate and positive feeding of the sole. To obviate this difficulty and to hold the sole firmly in the desired position While it is being channeled at any particular point, I provide the roll 32, which enga es the sole as closely as practicable direct y in the rear of the cutting portion of the knife. The sole is thus pressed down firmly 0n the table at three points feeding it against closely adjacent the cutting portion of the knife, so that it has no 0 portunity to lift or buckle. The roll 32 is al so positively driven at the same surface speed as the main feed roll 8, and thus acts positively to feed the sole, as well as to prevent the sole from being buckled or lifted by the knife and to increase the frictional engagement of the table with the solo.

The relative arrangement of the driving gears of the table 4. and the feed rolls 8 and 32 is such that the surface speed. of the portion of the table which moves directly beneath said rolls is somewhat greater than the surface speed of the rolls 8 and 32, so that 30 the table will always act to its fullest extent in feeding the sole.

As the cutting-edge of the knife extends obliquely with relation to the direction of the feed it will tend to force the sole against the 3-5 edge guard. By employing a rotary cutter rotating in the position described, for shaping the edge of the sole, on forming the upper receiving seat thereon, instead of another knife working in opposition thereto, this action will be practically unopposed, so that the channeling knife is thus permitted to act always to hold the edge of the sole against the edge guard, and prevent the channel from being cut at points nearer the edge of the sole than is desired.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is 1. A sole channeling machine comprising a 1:00 movable work support, a knife obliquely disposed above said support to cut an inclined channel in a sole carried thereby, and means for holding the sole against said support and feeding it against said knife composed of a 1-05 presser roll disposed to engage the sole di rectly in front of the knife edge and a pair of feed rolls respectively disposed closely adjacent the end of the knife and in the rear of its edge, substantially as described.

2. A sole channeling machine comprising a movable work support, a knife obliquely disposed above said support to cut an inclined channel in a sole carried thereby, means for holding the sole against said support and said knife com osed of a presser roll disposed to engage tl ie sole directly in front of the knife edge and a pair of feed rolls respectively disposed closely adjacent the end of the knife and in the rear of its edge, means for driving said feed rolls at a predetermined surface speed and means for driving said support at a somewhat greater surface speed, substantially as described. I

3. A sole channeling machine comprising a work support having an approximately horizontal face and movable to feed the sole, a channeling knife havin a cutting edge at its end and extending obiquely towards said:

support, and means for pressing the sole 1.3'0

ainst said support at oints in front of, in thereon, a rotary knife mounted to move t e rear of and at the en of the edge portion about an axis approximately parallel to said of said knife, substantially as described.

4. A sole channeling machine comprising a sole support and means for feeding the sole thereon, a rotary knife mounted to move about an axis approximately parallel to said support and extending longitudinally of said axis in position to form an upper receivingi seat on the upper edge portion of a sole hel on said support, a channeling knife having a cuttin e ge at its end, oppositely disposed to sai rotary knife, and extending obliquely towards said support and transversely of the feed, and a guard disposed to engage the edge of the sole 0 posite the end of saidchanneling knife, substantially as described.

5. A sole channeling machine comprising a sole support and means for feeding the sole support and extending longitudinally of said axis in position to form an upper receivin seat on the upper edge portion of a sole hel on said support, a channeling knife 0 positely disposed to said rotary knife, and ving its cutting edge extending obli uely with and across the feed to its end an a guard disposed to engage the edge of the sole opposite the end of said channeling knife, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of tWo subscribing witnesses.

EDWIN A. WEBSTER.

Witnesses:

HAROLD S. Looxwoon, LILIAN M. GUNNIsoN.

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