US1101538A - Welt-skiving machine. - Google Patents

Description

J. B. HADAWAY. WELT, SKIVING MACHINE. APPLIOATI 0N1ILEDMAB.18,1903. RENEWED MAB..21.1914.

1,101,538, Patented June '30, 1914.

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J. B. HADAWAY.

WELT SKIVING MACHINE.

APPLICATION FILED MAR.18, 190s. RENEWED MAR; 21, 1914.

1 9 1 0 1,53 PatentedJune 30,1914.

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J. B. HADAWAY.

WELT SKIVING MACHINE.

APPLIOATION FILED MAR. 18, 1903. RENEWED MAR. 21. 1914.

Pateanted. June 30, 1914.

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.T. B. HADAWAY.

WELT SKIVING MACHINE.

v APPLIOATION FILED MAR. 18, 1903. RENEWED MAR. 21. 1914. j m gg Patented June 30,1914.

4 SHEETSSHEET 1.

COLUMBIA PLANOGRAPH r WASHINGTON. D. c.

LtTE eras r a r JOHN B. HADAWAY, OE BROCKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

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Application filed March 18, 1903, Serial No. 148,311.

To aZZ whom it may concern:

Be it known that I, J 01 m B. HADAWAY, a citizen of the United States, residing at Brockt-on, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in lVelt- Skiving Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to welt skiving machines adapted to remove a skiving from the lower outer edge of the welt of a welted shoe at the shank portion of the shoe after the welt has been attached to the upper and insole.

The invention is intended primarily as an improvement on welt skiving machines which skive the welt before the outsole has been applied to the shoe, but certain features thereof are equally applicable to other welt skiving machines as, for instance, machines designed to act upon the shoe after the outsole has been laid thereon but before the outsole and the welt are permanently secured together by the outseam.

The object of the present invention is to provide an improved machine by which the welt of a welted shoe can be skived upon its lower outer edge at the shank portion of the shoe in a satisfactory manner without liability of injuring the welt or the other portions of the shoe.

A feature of my invention contemplates providing a welt skiving machine having a skiving knife arranged to remove a skiving from the lower outer edge of a Welt with two guides for guiding the shoe during the skiving operation, one guide being arranged to enter the crease between the upper and the welt and bear against the inseam above the welt, and the other guide being arranged to engage the inseam below the welt. By the provision of these two guides the correct position of the shoe with relation to the skiving knife can be readily maintained at all times and the stitches of'the inseam are held out of contact with the cutting edge of the skiving knife regardless of the manner in which the shoe is manipulated. The guide above referred to which engages the inseam below the welt constitutes a guard for preventing the skiving knife from cutting the Specification of Letters Patent.

WELT-SKIVING MACHINE.

Patented June 30, 1914.

Renewed March 21, 1914. Serial No. 826,442.

stitches of the inseam. I believe that I am the first to provide a welt skiving machine with a guard for this purpose, and I accordingly consider a feature of my invention to consist in providing a welt skiving machine comprising a skiving knife arranged to remove a skiving from the lower outer edge of the welt, with a guard for preventing the skiving knife from cutting the stitches of the inseam.

Another feature of my invention consists in an improved form of skiving knife, the novel features of which and the advantages secured thereby will be hereinafter explained.

In addition to the features of invention above referred to, my invention also consists in certain devices, combinations, and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art.

A preferred form of my invention is illustrated in the accompanying drawings, in which Figure 1 is a View in side elevation of a welt skiving machine embodying the same; Fig. 2 is a view in front elevation of the machine illustrated in Fig. 1; Fig. 3 is a plan view of the machine illustrated in Fig. 1; and Figs. 4, 5, 6 and 7 are views of the skiving knife, Fig. 4 being a plan view, Fig. 5 an underneath plan view, Fig. 6 an end view, Fig. 7 a side view thereof and Fig. 8 is a view in front elevation on an enlarged scale of the front portion of the machine, and also illustrating in section a portion of a shoe, the welt of which is between the work support and feed roll in position to be acted upon by the skiving knife.

Referring to the drawings 1 indicates the lower or base portion of the machine frame and 2 an arm or head pivoted thereto at 3 so as to be capable of a vertical swinging movement.

4 indicates the work support rotatably mounted upon an inclined spindle secured to the forwardly projected portion of the base 1. This work support is frusto-conical in shape and its supporting spindle is so ar ranged that the portion of the surface of the support which is uppermost lies in substan tially a horizontal plane. The work support enters the crease between the upper and the welt of the shoe so that it not only supports the welt in position to be acted upon by the skiving knife but also acts as a guide to determine the position of the shoe. A bevel gear 5 is secured to the work support and meshes with a bevel gear 6 upon the shaft 7 mountedin bearings in the base 1 of the machine. A gear 8 secured to the shaft 7 meshes with a gear 9 secured to the main driving shaft 10 journaled in hearings in the base 1. Through the connections above described the work support t is positively rotated from the main driving shaft in a direction to feed the welt against the skiving knife. On account of the frusto-conica l shape of the work support the peripheral speed of the surface in contact with the welt increases from the outer edge of the welt toward the inner edge. The work support thus tends to feed the inner edge of the welt faster than the outer edge and facilitates turning the shoe to keep the shoe in contact with the work support at all points along the rentrant curve of the shank.

Above the work support 4: and in position to cooperate therewith in feeding the welt to the skiving knife is a corrugated feed roll 11 which is fast upon the outer end of a shaft 12 j ournaled in bearings in the swinging head 2. To the shaft 12 is secured a gear 13 which meshes with a gear 14: which in turn meshes with a gear 15 upon the shaft 7 the arrangement of the gears being such that the feed roll 11 is rotated with the work support 4: but in the opposite direction so as to cooperate with the work support to feed the welt against the skiving knife. The shaft 12 is held from longitudinal movement in its bearings by means of two collars 16 secured to the shaft and bearing against the ends of the bearings for the shaft in the head 2. These collars are adjustably secured to the shaft 12 by means of set screws 17. By adjusting the collars 16 on the shaft 12 the shaft can be moved longitudinally to adjust the feed roll with relation to the work support 4; so as to bring the feed roll and work support into the proper relative positions to act upon the welt to the best advantage.

The feed roll is pressed toward the work support by means of a spring 18 coiled around a rod 19 pivotally connected at its upper end to the head 2 and passing through a lug 20 on the base 1, the spring being in terposed between the lug 20 and an adjusting part 21 having a screw-threaded engagement with the lower end of the rod. The spring 18 forces the head 2 downward and holds the roll 11 with a yielding pressure against a welt supported upon the work support 4. The forward end of the head 2 is guided by .means of a vertical guideway in the base 1 and its downward movement is limited by means of a stop screw 22 having a screw-threaded engagement with a split lug 23 on the head and engaging a lug 24 on the base 1. The stop screw 22 is clamped rigidly in any position to which it is adjusted by means of the clamping bolt 25.

The skiving knife is indicated at 26. This knife is held rigidly in position with its cutting edge 26 as near as practicable to the line of contact of the feed roll and work support with the welt and in such relation to the feed roll and work support as to remove a skiving from the lower outer edge of the welt as it is forced against the knife. The shoe is placed in the machine with the insole uppermost so that the upper surface of the welt, that is the surface which is upper most in the completed shoe, rests upon the work support and the lower surface of the welt is engaged by the feed roll. The skiving knife is provided with bevel 27 upon its lower surface or the surface which lies next to the welt during the skiving operation which meets the upper surface 27 to form the cutting edge 26 of the knife and is also provided at its end with a bevel 28 upon the same surface as the bevel 27. The skiving knife is placed in the machine so that the surfaces 27, 27 a which meet to form the cutting edge 26 of the knife are inclined upwardly and downwardly at equal angles to the plane of feed. As the skiving is removed from the welt it is bent upwardly by the surface 27'" in passing by the knife and at the same time the outer edge of the welt is bent downwardly by the surface 27. The inner edge of the welt close to the inseam, however, cannot be so bent and in order to allow the knife to act upon the welt close to the inseam, it is cut away at its end back of the cutting edge by means of the bevel 28 so as to relieve the pressure of the body portion of the knife on this part of the welt. The bending of the outer edge of the welt downwardly to afford clearance for the knife is permitted by the shape and arrangement of the work support, the supporting surface being curved and the curvature increasing from the inner toward the outer edge of the welt. The knife is also provided at its end with an upwardly projecting rib 29 which extends rearwardly from the cutting edge of the knife at substantially right angles thereto. tion of this rib is to bear against the inseam and prevent the shoe from being moved inwardly a sufficient distance to bring the stitches of the inseam into contact with the cutting edge of the knife. The rib thus serves as a guard for preventing the knife from cutting the stitches of the inseam and also as a guide which cooperates with the work support 4 in guiding the shoe, the work support engaging the inseam above the welt and the rib engaging the inseam below the welt.

In order to allow the cutting edge of the The funcknife to be brought into the desired position with relation to the work support and feed roll, means are provided for adjusting the knife and for rigidly securing it in adjusted position. As shown in the drawings four separate adjustments for the knife are provided, namely, a horizontal adjustment transversely to the direction of feed, a substantially horizontal adjustment in the direction of feed, an angular adjustment and a vertical adjustment.

The horizontal adjustment of the knife transversely to the direction of feed is secured by clamping the shank of the knife by means of a clamping bolt 30 between the clamping jaws of an angular support 31.

The width of the inseam of a welted shoe varies with the thickness of the welt and the construction above described provides for a relative adjustment of the crease guide and work support a and the skiving knife to compensate for this variation and cause the knife to cut always close up to the inseam. In the construction illustrated in the drawings it will be noted that the knife is moved in a direction parallel with the line of contact of the feed roll with the welt so that the position of its cutting edge with relation to the curved surfaces of the feed roll and work support remain substantially unchanged.

To enable the knife to be adjusted in the direction of the line of feed to bring its cutting edge close to the line of contact of the feed roll and work support with the surface of the welt, the angular support 31 is mounted to slide on a guideway formed on a support 32 and is secured in position thereon by means of a clamping bolt 33 passing through a slot in the support 31.

The angular adjustment of the skiving knife is secured by mounting the support 32 upon a segmental guideway on a support 33, the support 32 being secured in position on the support 33 by means of a clamping bolt 34: passing through a segmental slot in the support 32. The segmental. guideway upon which the support 32 is movably mounted is concentric with the end of the skiving knife so that when the support 32 is adjusted upon the support 33 the angle of the cutting edge of the knife with the surface of the work support 4 is varied. By means of this angular adjustment of the knife therefore the bevel produced upon the lower outer edge of the welt can be varied as desired.

The vertical adjustment of the knife is secured by mounting the support 33 upon a vertical guideway on the base 1 of the machine frame. The support 33 is adjusted vertically by means of an adjusting screw 35, held against longitudinal movement in a bearing formed in a projection 36 on the base 1 and having a screw-threaded engagement at its lower end with the support 33. Bolts 37 passing through vertical slots in the support 33 secure the support rigidly in its adjusted position. By adjusting the support 33 the skiving knife can be adjusted vertically without changing its angular position with relation to the surface of the work support to adapt the machine for operation upon welts of different thicknesses or to vary the thickness of the skiving removed from the welt.

The operation of the machine illustrated in the drawings has been indicated in the preceding description and will be readily understood by those skilled in the art.

Having thus indicated the nature and scope of my invention and having illustrated and described a machine embodying a preferred form thereof, I claim as new and desire to secure by Letters Patent of the United States 1. A welt skiving machine, having, in combination, a feed roll, a combined crease guide and work support, and a skiving knife arranged to remove a skiving from the lower outer edge of the welt, the feed roll and work support being relatively adjustable longi tudinally of the feed roll, substantially as described.

2. A welt skiving machine. having, in combination, a skiving knife for removing a skiving from the lower outer edge of the welt, a work support arranged to support the welt of a welted shoe in position to be acted upon by the skiving knife, a feed roll and a guard for preventing the knife from cutting the stitches of the inseam, substantially as described.

3. A welt skiving machine, having, in combination, a skiving knife for removing a skiving from the lower outer edge of the welt, a work support arranged to support the welt of a welted shoe in position to be acted upon by the skiving knife, and a feed roll, the work support and feed roll being relatively adjustable longitudinally of the feed roll, substantially as described.

4:. In a welt skiving machine, a skiving knife for removing a skiving from the lower outer edge of the welt provided with a guard for preventing the knife from cutting the stitches of the inseam, substantially as de scribed.

5. In a welt skiving machine, a skiving knife for removing a skiving from the lower outer edge of the welt provided at its end with a projecting rib to prevent the knife from cutting the stitches of the inseam, substantially as described.

6. In a welt skiving machine, a skiving knife for removing a skiving from the lower outer edge of the welt provided at its end with a bevel on the surface which contacts with the welt to relieve the pressure of the body portion of the knife on the welt, substantially as described.

7. In a welt skiving machine, the skiving knife 26 provided with the guard 29 to prevent the knife from cutting the stitches of the inseam and the bevel 28 to relieve the pressure of the body portion of the knife on the welt, substantially as described.

8. A welt skiving machine, having, in combination, a guide arranged to engage the inseam of a welted shoe above the welt, .a guide arranged to engage the inseam below the welt, and a skiving knife arranged to remove a skiving from the lower outer edge of the welt, substantially as described.

9. A welt skiving machine, having, in combination, a guide arranged to engage the in seam of a welted shoe above the welt, a stationary guide arranged to engage the inseam below the welt, and a skiving knife located on the same side of the inseam as said stationary guide arranged to remove a skiving from the lower outer edge of the welt, substantially as described.

10. In a welt skiving machine, a skiving knife for removing a skiving from the lower outer edge of the welt cut away along its end back of the cutting edge to relieve the pressure of the body portion of the knife on the welt, substantially as described.

11. A welt skiving machine, having, in combination, a crease guide and work support, a feed roll and a skiving knife arranged to remove a skiving from the lower outer edge of the welt, said crease guide and skiving knife being relatively adjustable in a direction parallel with the line of contact of the feed roll with the welt, substantially as described.

12. A welt skiving machine, having, in combination, a feed roll, a work support, and a skiving knife arranged to remove a skiving from the lower outer edge of the welt, said skiving knife being adjustable in the plane of the welt transversely to the direction of feed and independently adjustable in the direction of feed, substantially as described.

13. A welt skiving machine, having, in combination, a skiving knife for removing a skiving from the lower outer edge of the welt provided at its end with a bevel on the surface which contacts with the welt to relieve the pressure of the body portion of the knife on the welt and means for supporting the welt of a welted shoe in position to be acted upon by the knife and for feeding the welt to the knife, substantially as described.

14. A welt skiving machine, having in combination, means for supporting and feeding the welt of the welted shoe and the skiving knife 26 arranged to remove a skiving from the lower outer edge of the welt, said knife being provided with the guard 29 to prevent the knife from cutting the stitches of the inseam and with the bevel 28 to remove the pressure of the body portion of the knife on the welt, substantially as described.

In testimony whereof I vaffix my signature, in presence of two witnesses.

JOHN B. HADAWAY.

WVitnesses:

FRED O. FISH, ALFRED H. HILDRETH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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