US1290179A - Welt-beating machine. - Google Patents

Description

L B. HADAWAY.

WELT BEATING MACHINE.

APPLICATION FILED APR.2, 1915 LQQFOJ'YQ. Patented Jan. 7,1919.

4 SHEETSSHEET 1.

J. B. HADAWAY.

WELT BEATING MACHINE.

APPLICATION FILED APR.2. I915.

Patented Jan. 7, 1919.

'4 SHEETS$HEEI 2.

J. B. HADAWAY.

WELT BEATING MACHINE.

APPLJQATION man APR. 2. ma.

4 SHEETS-SHEU 3- 6 Patented Ian. 7, 1919.

J. B. HADAWAY.

WELT BEATING MACHINE.

APPLICATION FILED mm, ms.

Patented Jan. 7, 1919.

4 SHEETS-SHEET 4.

JOHN B. HADAWAY, OF SWAIVIPSCCTT, MASSACHUSETTS, ASSIGN'OR, BY MESNE ASSIGN- MENTS, 'IO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

WELT-BEATIN G MACHINE.

To all whom it may concern:

Be it known that I, JOHN B. HADAWAY, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Welt-Beating Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will ena'ble others skilled in the art to which it appertains to make and use the same.

This invention relates to welt beating ma.- chines for beating out the welt of a lasted shoe and, more particularly to machines of this class in which the welt beating means has an intermittent gripping engagement with the welt. Certain features of the invention, however, are not limited to Welt beating machines in which the welt beating means has this particular mode of operation but may be embodied with advantage in other welt beating machines.

Welt beating machines of the type at present in common commercialuse are-provided with a welt support and with a welt beating hammer which is vibrated with great rapidity to beat out the welt as it is advanced across the upper surface 0 fthe welt support.

In such machines the welt is fed between the strokes of the hammer when the hammer is disengaged from the welt. Young or inexperienced operators are very frequently employed to operate these machines and the welt is often advanced so rapidly through the machine that the operatlon is not sufficiently performed. It is desirable that the welt should be beaten out more or less at all points so that it will lie fiat in substantially the plane of the insole, and the welt is often slighted by the operator at certain points particularly along the sides of the shoe so that it is not in proper condition. when the outsole is applied thereto. 'To obviate this difiiculty it has been proposed to provide machines of this type with a feed mechanism arranged to advance the welt a predetermined uniform distance between the strokes of the hammer. It is not desirable, however,

that the welt should be fed at the same speed at all points since certain portions thereof, such as the toe, ordinarily require a more extended beating than other parts. i

: One object of the present invention is to Specification of Letters Patent.

Patented Jan. '7, 1919.

Application filed April 2, 1915. Serial No. 18,692.

produce a welt beating machine of the type havlng welt beating means acting to grip the welt intermittently in which it will be impossible for the operator to advance the welt more rapidly than a predetermined speed and upon which the welt beating operation may be performed in an eflicient and reliable manner.

Other objects of the invention are to improve the construction and mode of operation of welt beating machines and to produce amachine upon which the welt beating operation may be performed with the exerclse of a less degree of skill and care on the part of the operator than isreguired in the operation of machines heretofore produced.

With this object in view, one feature of the invention contemplates the provision in a welt beating machine having welt beatmg mean's acting to grip the welt intermittently of means for limiting the speed at which the welt may be fed through the machine arranged to allow the feed to be controlled by the operator within the limiting speed. This provision prevents the welt from being slighted or left unbeaten at any point and at the same time allows the operator to control the feed so as to subject certam portions of the welt to a more extended beating action than other portions thereof.

Another feature of the invention contemplates the provision, in combination with means for limiting the speed at Which the welt may be fed through the machine, of means for varying the limiting speed during the operation of the machine.

In the present embodiment of the invention means is provided for varying the pressureof the welt beating means on the welt during the operation of the machine so that certain portions of the welt may be subjected to a heavler beating action than other portions thereof and another feature of the invention contemplates the provision of a connection between the pressure varying means and the mechanism for controlling the speed limiting means arranged to cause a decrease in the limiting speed upon increasing the pressure of the welt beating means on the welt. This provision insures a more extended beating of the welt at the refractory portions thereof where the pressure of the welt beating means is increased.

Other features of the invention consist of certain novel and improved constructions, arrangements and combinations hereinafter described and particularly pointed out in 5, the claims, the advantages of which will be i elevationof the machine; Fig. 2 is a view in front elevation of the machine with the welt support in lowered position illustrating the parts in the positions which they as sume at one point in the operation of the machine; Fig. 3 is a view similar to Fig. 2 illustrating certain of the parts in different positions; Fig. 4 is a view in front elevation of the machine illustrating the parts in the positions which they assume at substantially the same point in the operation as illustrated in Fig. 3, but with the welt support in raised position; and Fig. 5 is a detail view of the treadle mechanism for elevating the welt support and controlllng the operation of the slashing knife.

. The welt beating machine illustrated in the drawings has thesanne general construction and mode of operation as the welt beating machine shown and described in the patent to Hadaway, Serial No. 875,171, dated December 31, 1907. The machine is provided with a welt support indicated at 2 which is shaped to enter the crease between the upper and welt of a lasted shoe s0 as to support the welt upon its upper surface and with a vibratory welt beating ham- 'mer indicated at 4 arranged to deliver blows on the welt as it is advanced across the upper surface of the welt support. The hammer is secured to the lower end of a hammer rod 6 mounted to slide in suitable guides in the forward end of the hammer lever 8. To cushion the blows delivered by the hammer upon the welt a coiled spring 10 mounted in a cylindrical chamber in the forward end of the hammer lever surrounds the hammer rod and engages at its upper end the upper face of the chamber in the hammer lever and at its lower end a shoulder on the hammer rod. The downward movement of the hammer in the hammer lever is limited by a clamping nut 12 threaded upon the upper end of the hammer rod. The hammer lever 8 is mounted to oscillate upon av short shaft 14 supported on the frame of the machine and is rapidly oscillated to vibrate the hammer by means of an eccentric fixed to the main shaft 16 of the machine and operating within an eccentric block 18 mounted in the forked rear end of the hammer lever.

The machine is provided with a welt slashing knife indicated at 20 which, except as hereinafter described, has substantially the same construction, arrangement and mode of operation as the welt slashing knife of the machine illustrated and described in the Hadaway patent referred to above. The welt slashing knife is secured to the forward end of the reciprocatory slide 22 the rear end of which is connected with an oscillatory lever 24 pivoted at 26 and provided with a cam roll 28 engaging a cam groove 30 in a cam disk 32 mounted to turn upon a rearwardly extending shaft 34 fixed in the frame of the machine. The main shaft 16 of the machine carries a worm meshing with a Worm wheel 36 mounted on the rearwardly extending shaft 34 alongside the cam disk 32 and a sliding clutch pin 38 mounted in the cam disk 32 and arranged to be moved into and out of clutching engagement with the worm wheel 36, is pro dvided to connect the cam disk with the worm wheel at certain.times so that the cam disk may be actuated to operate the welt slashing knife. The action of the clutch pin is controlled by a wedge 40 mounted upon the extremity of a lever 42, pivoted 'upon the shaft 44 and normally held in elevated position by. a tension spring 46 to maintain the clutch pin 38 disengaged from the worm wheel 36. The lever 42 may be depressed to allow the clutch pin to be actuated by the spring 48 to engage the worm wheel 36 and thereby connect the cam disk with the worm wheel by means of a treadle I connected with the lever by a treadle rod 50.

In order that the pressure of the welt beating hammer on the welt may be varied at different points in the welt, the welt support is mounted in the machine so that it may be adjusted vertically. To this end the welt support is mounted upon the forwardly extending arm of a hanger 52 which is pivoted upon the shaft 14 of the hammer lever. To support the hanger 52 an arm 54 is fixed to a stud 56 mounted in hearings in the hanger 52 and engages at its rear end the curved face 58 of a support 60 adjustably pivoted on the shaft 44. The lower 'end of the support 60 is supported by means of an adjustable abutment screw 62 threaded into the support 60 and engaging at its lower end an abutment 64 on the frame. The support 60 is adjusted so that the lower portion of the curved face 58 thereof is nearer the axis about which the arm 54 swings than the upper portion of said face. With this construction the forwardly extending arm of the hanger 52 will be lifted to elevate the work support by swinging the arm 54 downwardly about its pivot 56. To maintain the arm 54 normally in elevated position so that the work support is normally lowered, a spring 66 is coiled about the shaft 56, one end of said spring being fast to the. shaft and the other engaging a pin 68 projecting from the hanger 52. To enable the operator to depress the arm 54 to elevate the welt support, the arm is connected by a treadle rod 70 with a suitable treadle.

The distance which the welt may be advanced between the strokes of the hammer is limited positively to limit the speed at which the welt may be fed through the machine by means of a feed limiting foot 72 arranged to engage the upper surface of the welt. This foot 72 is pivoted by a pin 74 to the laterally extending arm of a rocking frame 76 mounted on the shaft 78 supported in the upwardly extending arm 80 of thehanger 52. During each cycle of operations of the machine the foot 72 is depressed into engagement with the welt before the hammer is lifted from the welt as shown in Figs. 3 and 4 and is held in engagement with the welt between the strokes of the hammer. After the hammer has again engaged the welt the foot is lifted from the welt as shown in Fig. 2. These movements are imparted to the foot 72 by suitable actuating mechanism connected with the rocking frame 76. It will be noted that with this mode of operationof the hammer and thefoot 72, the welt is at all times engaged either by the foot or the hammer. Limiting stops are provided to limit the swinging movement of the foot 72 along the line of feed and thereby to limit the distance which the welt may be advanced between the strokes of the ham I mer, the foot being engaged with the rear stop when it initially engages the welt and being swung over against the forward stop by the feed movement of the Welt as the welt is advanced between the strokes of the hammer. The frame 76 is actuated to depress the feed limiting foot 72 into engagement with the welt by means of a spring 82 coiled about the shaft 78, one end of which engages the arm 80 of the hanger 52 and the other end is made fast in a bore in the frame 76. The rocking frame 76 is actuated to lift the feed limiting foot from the welt in timed 'relation to the movements of the hammer during each cycle of operation by mechanism comprising a bar or link 88 connected with a laterally extending arm 90 on the frame 76 by means of a pin 92 engaging in a slot 94 in the link. The lower end of the link 88 is pivotally connected at 96 with the arm 98 of a bell-crank lever pivoted on the shaft 44. The other arm 100 of thisbellcrank lever is slotted to receive a block 102 mounted. upon a pin 104 carried on the end of an arm 106 fixed to the shaft 14 upon which the hammer lever is mounted. The

hammer lever is also fixed to this shaft so that the shaft is rocked by the oscillating movements of the hammer lever. Through the connections described suitable movements are imparted from the hammer lever shaft to the rocking frame 76 to lift the feed limiting foot from the welt in timed relation to the movements of the hammer as above described. The pin and slotconnee tion is provided between the link 88 and the arm 90 of the frame 76 to allow for lost motion between these parts as the hammer lever contiues its movement after the feed limiting foot 72 has been lowered into engagement with the work. The frame 76 is mounted upon the hanger 52 which carries the welt support so that the forward end of the frame upon which thefeed limiting foot is mounted is raised and lowered with thewelt support. The parts of the mechanism for lifting the feed limiting foot are arranged so that the center of the shaft 14 and the center of the pivotal connection 96 are substantially in line with the 'point of connection of the upper end of the link 88 with the arm 90. With this construction the swinging of the hanger 52 about the shaft 14 to raise and lower the welt "support will produce substantialy no angular movement of the frame 76 on the shaft 78 so that the feed limiting foot 72 is raised and lowered substantially the same distance as the welt support.

As above stated, in order to limit the distance which the welt may be fed while the hammer is disengaged from the welt, limit ing stops are provided for limiting the swinging movement of the foot 72. In the construction illustrated the rear stop indicated at 108 is secured upon the forward end of the hammer lever by means of a screw 110 and limits the swinging movement of the foot 72 in a direction opposite to the direction of feed. The foot 72 when it is lifted from the welt is engaged with the rear stop 108 by a spring 112 mounted in a suitable bore in the frame 76 and engaging an arm 114 formed on the foot 72. The swinging movement of the foot 72 in a forward direction is limited by means of a stop shoulder 116 formed on the welt beating hammer 4. With this construction as the feed limiting foot 72 is depressed. into engagement with the welt it is held against the rear stop 108 by the spring 112 and its position in the direction of feed at the time at which it engages the welt is determined by this stop. As the hammer is disengaged from the welt the welt is advanced along the upper surface of the welt support until the foot 72 engages the forward stop 116 formed on the hammer, thereby limiting the advance of the welt. As the hammer is again engaged with the welt the foot 72 is lifted from the welt and is then swung rearwardly into engagement with thestop 108 by the action of the spring 112. It will be noted that the distance which the work may be fed between the strokes of the hammer is determined by the position of the foot 72 in the direction of feed at the time at which it first engages the welt and that the more advanced in the direction of feed is the initial work engaging position of the foot, the shorter will be the distance which the work may be fed between the strokes of the hammer.

' An important feature of the above described feed limiting mechanism is that its construction and mode of operation is such that the operator may control the speed at which the welt is advanced over the upper surface of the welt support within the predetermined speed limit. This enables the operator to advance the welt rapidly up to the predetermined speed limit when operating upon portions of the welt which require a relatively slight beating out and to retard the feed when operating upon those por tions which require a more extended beating to cause them to lie flat in the planeof the insole.

As has been stated above, it is desirable when operating upon certain portions of the welt which are particularly refractory, not only to increase the pressure of the welt beating hammer upon the welt, but also to diminish the speed at which the welt is. ad vanced between the welt support and the hammer so that the welt will be subjected to a heavier and more extended beating action. This is particularly true when operating about the toe of the shoe where the curve in the shape of the welt as it extends about the toe tends to draw the outer edge of the welt inwardly so that the welt before'being beaten has a warped cross section. In order to cause the initial work engaging position of the feed limiting foot 72 to be advanced in the direction of feed to shorten the distance which the welt may be fed between the strokes of the hammer as the welt support is lifted to increase the pressure of the welt beating hammer upon the welt, the foot 1s formed with a stop engaging face 118. mclined as shown in Figs. 2, '3 and 4: which engage a correspondingly inclined face on the rear stop 108. The mechanism for raising and lowering the feed limiting foot 72 is constructed and arranged to engage the foot with the work at the same point in the move ment of the hammer lever regardless of the vertical position'of the welt support. Dur ing each cycle of operation of the machlne starting at a point when the hammer is en gaged with the welt and the feed limitlng foot 72 is lifted, as shown in Fig. 2, as the hammer levermoves in a' direction to-lift the forward end of the lever the frame 76 is actuated by the spring'82 to depress the feed limiting foot 72 into engagement with the work, the pin 92 being held against the up per end of thejslot at until the feed limiting foot engages the welt which occurs before the hammer is lifted from the welt. During upper end of the slot 94, which occurs after the hammer has been brought into engage ment with the work. As above. explained, the connections between the rocking frame and the bell-crank lever 98100,are arranged so that changes in the vertical position of the hanger 52 do not affect the angular position of the frame 76 on the shaft 7 8. It will, therefore, be seen that the forward end of the hammer lever upon which stop 108 is mounted occupies the same absolute vertical position at the time that the feed limiting foot firstengages the work, whether the. welt support is in raised or in loweredposition. This may perhaps be better understood by assuming that the machine is stationary with the parts in the positionswhich they occupy when the feed limiting foot is first brought into engagement with the work as shown in Fig. 3 and that the work supportis then raised to the position shown in Fig. 4. It should be considered that at the time when the feed limiting foot is brought initially into engagement with the work the pin 92 still engages the upper end of the slot 94 and that the link 88 is just about to be lifted to disengage the upper end of the slot'from said pin. If, therefore, the parts of the machine are stationary in the positions shown in Fig. 3 and the work support is raised to the position shown in Fig. 4 the feed limiting foot will be still engaged with the welt and the pin 92 will remain in engagement with the upper end of the slot 94. This is due to the fact that the frame 7 6 is mounted upon the hanger 52 so that it swings about the shaft 14 to liftthe forward end of the frame with the hanger and that the connections between the frame 76 and the. actuating bell crank 98100, are arranged so that the swinging of the hanger 52 to lift the welt support does not affect the angular position of the frame 76,- the foot being lifted substantially the same distance as the welt support. Fig. 4, therefore, represents the positions of the p'artsof the machine when the welt support is raised and the feed limiting foot has been just-brought initially into enga ement with the work. As shown in Fig. 4, the stop 108 occupies a lower position relative to the inclined face 118 of the feed limiting foot at the time that the foot initially engages the work when the welt support is raised than when the welt supportis lowered as shown in Fig; 3. Because of the inclination of the stop engaging face'118 of the feed limiting foot, the initial work engaging position, of

nected with thetreadle rods50. and 170' so 50 .the arms of a bracket 128. The treadle rod "50. is threaded at its lower. end into a yoke .res ondingly decreased.

11 order that the welt slashing knife may be moved vertically with the welt. support sothat the knife will at all times be in position to act upon the wvelt as it lies on the upper surface of the welt support, the knife slide 22 is mounted in a suitable guide 120 in the hanger 52 and is held insaid guide by a retaining plate 122. With this construction the knife slide swings about the shaft 14: with the hanger 52 and the knife is raised and lowered with the welt support.

Separate treadles may be provided for connection with the treadle rods and 70 to throw the welt slashing. knife into and out of operation and. to raise andlower the Welt" support independently. In ,the preferred construction, however, a single treadleis provided for connection with both of these treadle rods sothat the knife is thrown into operation as the welt sup-port is raised to increasethe pressure of the welt beating I hammer on the welt. In the operation of machines of this type the weltslashing knife is ordinarilythrown" into operation only at the toe of the shoe and it is often desirable to increase the pressure of the wvelt beating means on the welt at portionsrthereof other than the toe without throwing the knife into operation. construction illustrated the treadle mechanismis constructediand arranged and conthatiupon the depression of-the treadlethe knife is thrown into operation only after the welt-support has been raised to a predetermined .position' or "after a=.,predetermined pressure of thewelt beating hammer on the welt is reached In the construction shown the treadle rod is connected-at itslower end: with a forwardly extending arm 124 fixedto a shaft 126:mounted in bearings in 130 which embraces a second arm'132 'fixed to the shaft 126, the-yokecarrymg a pm 134 which engages in a slot 136 in the arm132.

A treadle 138 is fixedto the endof the shaft the treadle to be depressed to increase the pressure of the hammeron the? welt up to a "predetermined amount without throwing the 'welt slashing knife into operation. When To-secure these: resultsi'n the the treadle is depressed the arm 54, during the first part of the downward movement of the treadle is swung downwardly to raise the Welt support and thereby increase the pressure of the hammer on the welt. During this part of thedownward movementof the treadle the arm 132 swings downwardly inde-, pendently of the treadle rod 50 until a pre determined pressure of the welt heating means upon the welt is reached, whenthe pin;134,- engages the upper end of the slot 136 in thearm 132 and the treadle rod 50 is then depressed to swingthe arm 42 downwardly and thereby throw the welt slashing knife into operation.

Having explained the nature and object of the invention, and having specifically described amachine embodying the invention in its preferred form, What is claimed is:

1. A Welt beating machine having, in comtermittent gripping engagement wvith the welt, means for varying the pressure of the welt beating means on the welt during the operation of themachine, mechanism for limiting the speed at which the welt may be fed through the machine and means to cause a variation in the limiting speed upon a variation in the pressure of the welt-beating means. y

2. A welt beating machine having, in combination, welt beating means having an intermittent gripping engagement with the welt, means for limiting the speed at which the welt may be fed through the machine and means for varying the limiting speed during the operation of the machine.

3. A welt beating machine having, in combination, a welt support, welt heating means having an intermittent gripping engagement 105 with the welt,pmeans for varying the pressure of the melt beating means on the welt during the operation of the machine, means for limiting the speed at which the welt may be fedthrough themachine, and means for limiting speed as the pressure of the welt beating means is diminished.

4:. A Welt beating machine having, in combination, a welt support, welt beating means having an intermittent gripping engagement with the avelt, means for increasing the pressureof-the welt beating means on the welt during the operation ofthe machme, means forlimiting the speed at which the welt may be advanced through the machine and means for causing a decrease in the limiting speed upon increasing the pressure of the Welt heating means.

. 5. A welt beating machine having, in com- .bination, a welt support, Welt beating means, pressure varying means,- normally inact ve welt slashing mechanism,.and mechanisms throw the welt slashing mechanism into operation when a predetermined pressure of the welt beating means on the welt is' reached.

6. A welt beating machine having, in combination, a welt support, welt heating means, pressure varying means, normally inactive welt slashing mechanism, devices under control of the operatorfor actuating the pressure .varying means to vary the pressure of the welt beating means on the welt while the welt slashing mechanism is inactive, and mechanism arranged to be actuated bysaid devices in timed relation to the pressure varying means to throw thewelt slashing mechanism into operation when a predetermined ressure of the welt beating means on the wet is reached. a

7. A welt beating machine having, in combination, a welt support, welt beatingmeans, pressure varying means, normally inactive welt slashing mechanism, and connected mechanisms under control of the operator for actuating the pressure varying means to produce variations in pressure while the welt slashing mechanism 'is inactive, and for throwing the welt slashing mechanism into and out of operation. y

8. A'welt beating machine having, in combination, a welt support, welt heating means having an intermittent gripping engage ment with the welt, means for varying the pressure of the welt beating means on the welt during the operation of the machine, means ,for limiting the speed at which the welt maybe fed between the welt support and the welt beating means and means for varying the limiting speed.

9. A welt beating machine having, incombination, a welt support, welt heating means having an intermittent gripping engagement with the welt, means for varying the pressure of the welt beating means on the welt during the" operation of the machine, means for limiting the speed at which the welt may be fed .between the welt support and the welt beating. means and connected mechanisms for' controlling -the pressure varying means and the speed limiting means.

10. A welt. beating machine having, in combination a welt support, means forbeating the welt having an intermittent gripping engagement with the Welt, means for varying the pressure ofthe welt beating means onthe welt duringthe operation of the inachine, means for limiting the speed at which the welt may be fed between the welt sup- .port and. th We baa ie ieseii fifesdfe 9 nection for controlling the speed limiting means arranged to cause a decrease in the limiting speed upon an increase in the pres sure of the welt heating means.

11. A welt beating machine having, in combination, a welt support, welt beating means having an intermittent gripping en gagement with the welt, means for varying the pressure of the welt beating means on the welt during the operation of the machine a and mechanism for limiting the speed at which the welt may be fed t irough the machine.

12. A welt beating machine having, in'

combination, a welt support, welt beating meanshaving an intermittent gripping en gagement with the welt, means for varying the pressure ofthe welt beatin means on the V welt during the operation 0 the machine,

mechanism for limiting the speed at which the welt may be fed through the machine and means for slashing the welt.

13. A welt beating machine having, in combination, a' welt support, welt beating means having an intermittent gripping engagement withthe welt, means for varying the pressure of the welt beating means on the welt during the operation of the ma chine, mechanism for limiting the speedat which the welt may be fed through'the ma- 14:. A welt" beating machine having, in

combination, welt support, welt beating means havingan intermittent gripping en- 'gagement with the welt, a feed limiting foot arranged to be moved by the feed movement of the'welt,means for moving the foot into and out of 'engagement with 'the welt' in timed relation to the welt beating means,

and devices for limiting theinovement'of the foot in the direction of feed.

15. A welt -beating mach ine having,-.in V

combination, a welt support, welt beating means having an intermittent grippingFengagement with the welt, means for varying the pressure of the welt beating means on the welt, a feed limiting foot, mechanism for moving the foot into and out offengageiment with the welt intimed relation to the movement of the footin the direction of feed comprising a stop and "an abutment on "the foot, and mechanism for varying' the, rela tive positions of the stop and the foot to welt heating means, devices for limiting the 1 vary one of the limiting positions of'the foot as the pressure of the welt beating means-on the weltjis varied. 1 I

16.-A welt beating machinefhaving, in

' combination, a vertically movable welt support, welt beating means havin an intermittent gripping engagement wit the welt, a hanger movable with the welt support, a feed limiting foot mounted on the hanger for movement with the hanger, means for moving the foot relatively to the hanger into and out of engagement with the welt in timed relation to the Welt heating means, and devices for limitin the movement of the foot in the direction oi feed constructed and arranged to vary one of the limiting positions of the foot as the foot is raised and lowered.

17. A Welt beating machine having, in combination, a vertically movable welt support, welt beating means having an intermittent gripping engagement with the welt, a feed limiting foot movable vertically as the welt support is raised and lowered, and devices for limiting the movement of the foot in the direction of feed comprising a vertically fixed stop and an abutment on the foot, one of which is provided with a contact face obliquely inclined to the vertical, so

that one of the limiting positions of the foot is varied as the foot is raised and lowered.

18. A welt beating machine having, in combination, a welt support, welt beating means arranged to exert normally a predetermined pressure on the welt, normally in active welt slashing mechanism, means for increasing the pressure of the welt beating means on the welt while the welt slashing mechanism is inactive, and means for throwing the welt slashing mechanism into and out of operation.

19. A welt beating machine having, in combination, a vertically movable welt support, welt heating means, means for moving the welt support vertically to vary the pressure of the welt beating means on the welt, a welt slashing knife arranged to slash the welt while the welt is supported by the welt support, means for supporting the knife for vertical movement with the welt support,

- and means for throwing the knife into and out of operation.

JOHN B. HADAWAY.

Copies of this patent may be obtained for five cents each, by addressing the "commissioner of Patento, Washington, D. 0."

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