US449247A - Half to morrill e - Google Patents

Description

(N0 Mode-1.) 4-Sheets-Sh88t 2.. J. B; HADAWAY. MACHINE FOR OHANNELING AND TRIMMING BOOT SOLES, 61:0.

No. 449,247. Patented Mar. 31,1891.

(No Model.) 4 Sheets-Sheet 31.

J. B. HADAWAY. MAGHINE FOR OHANNELING AND TRIMMING BOOT SOLES, &c.

No. 449,247. Patented Mar. 31,1891.

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J. B. HADAWAY. MACHINE FOR OHANNELING AND TRIMMING BOOT SOLES, &c.

No. 449,247. Patented Mar. 31,'1891.

UNITED STATES PATENT OFFICE.

JOHN B. HADAWAY, OF BROCKTON, MASSACHUSETTS, ASSIGNOR OF HALF TO MORRILL E. BRIGGS, OF SAME PLACE.

ONE-

MACHINE F-OR CHANNELING AND TRIMIVHNG BQOT-SOLES, 80C.

SPECIFICATION forming part of Letters Patent No. 419,247, dated March 31, 1891.. Application filed December 22, 1890- Serial No. 375,431. (No model.)

. sists in certain novel features of construction,

arrangement, and combination of parts, which will be readily understood by reference to the description of the drawings and to the claims hereinafter given and in which my invention is clearly pointed out.

Figure 1 of the accompanying drawings is a plan of a machine embodying my invention. Fig. 2 is a front elevation of the same with the base portion of the supporting-column broken away. Fig. 3 is a side elevation of the same, looking toward the left of Figs. 1 and 2, with a portion of one of the shaft-supports broken away. Fig. 4 is a vertical section on line 2 2 on Figs. 1 and 2. Fig. 5 is a section through the lever and slide which carries the channelcutt-ing knife and its stock on line 3 3 on Fig. 4. Fig. 6 is a partial section of the channelknife-carrying slide and its lever on line 4 4: on Fig. 4. and showing the channel-knife and its stock in front elevation. Fig. 7 is a plan of the channel-knife-carrying stock. Fig. 8 is asection of the same on line 5 5 on Figs. 6 and 7. Fig. 9 is a rear elevationof said knifestock. Fig. 10 is a side elevation of the same viewed from a standpoint at the right of Fig.

9. Figs. 11 and 12 are respectivelyan inside elevation and an inverted plan of the clam pplate for holding the upper trimming-knife, and Fig. 13 is a side elevation of the channelcutting knife. Figs. 6, 7, 8, 9, 1O, 11, 12, and 13 are drawn to a scale twice as large as the other figures.

In the drawings, A represents the upper portion of a column of suitable height, upon which the base-plate B of the head of the machine is secured by means of the bolts a a. (See Fig. '2.)

The base-plate B has form ed integral therewith the npwardly-projecting block B and the ear B and has secured therein upon opposite sides of the column A the standards 0 and O in bearings, in the upper ends of which is mounted the shaft D, upon which are firmly secured between said bearings the cam-cylinder E and the cam-disk F, and outside of the standard 0 the driving-wheel G, grooved to receive a round driving-belt. The ear B has pivoted thereto at b the lever H, which is forked so as to straddle said ear, and has secured thereto the work support or table 0, which also serves as a gage for guid ing the work by hearing at its front end against the upper just beneath the sole, the

shoe being inverted or placed in the machine with the tread-surface of the sole upward.

The lever H engages at its end opposite the free end of the Work support or table 0 with a fork 0', formed in the upper side of the bar H at its front end, and has mounted thereon the roll cl, with which the hand-lever d, pivoted at d engages to move said lever H about its fulcrum in one direction. The bar H is fitted to slide in a bearing 6, secured to the bed-plate A, and is moved toward the front of the machine by the tension of the spring e, adj ustably secured at one end to said bar H and at its other end to a pin or stud 6 set in the bed A, the forward movement of said bar H and the upward movement of the free end of the work-support H beinglimited by the stop-pinsfand f coming in contact or any other suitable stop, alkas shown in Figs. 1 and 3. The bar H has secured upon its upper side two ratchet-plates g and g, the shouldered ends of the teeth of which face toward each other, as shown in Fig. 3.

J is a T-shaped or three-armed lever pivoted at f to the ear B and carrying at the end of its long arm a roll 9 which fits into and is operated upon by the cam-path formed in the side of the disk F to vibrate said leverw The two shorter arms of the lever J have their ends forked, and have pivoted in each of said forks two pawls h and h (Not shown.)

of slightly-different lengths, the points of which are pressed downward by springs 71, said downward movement relative to the lever J being limited by the stop-screws i, as shown in Fig. 3.

K is an elbow-lever pivoted atd to the ear B and carrying at its upper end a roll h which rests upon and is acted upon by the face-cam surface formed upon the periphery of the disk F, and at its front end the presserfoot h which has set in its loweror operating only in dotted lines in Fig. 0.

end the spur i to enter the sole when the presser-foot is forced down upon the surface thereof, and thus aid in holding the sole firmly while the channel-knife is being moved to cut the channel, said spur being so arranged as to operate upon the sole in the sameplaneas the trimming-cutters, to be hereinafter described.

The sole-edge is trimmed to a uniform distance from the upper on the last by means of two trimming-cutters arranged to act upon the sole from opposite sides thereof and meet between the upper and lower surfaces of the sole. The lower trimming-knife j is mounted in the front end of the lever L, mounted upon the fulcrum-pin b, and carrying at the end of its rear or long arm a roll which fits into and is acted upon bythe cam-path Z in the side of the disk F opposite to the path g and shown The knifejis secured to the lever L by means of the clam ping-plate j and suitable binding bolts or screws, the inner faces of the lever and clamping-plate 3' having formed therein curved grooves having beveled bottoms to fit corresponding surfaces on the edges of the knife.

The block B has formed in itsfront face a horizontal groove, in which is fitted, so as to be movable endwise therein, the bar L, having a T-shaped cross section, and having formed thereon, near its inner or right-hand end, the outwardly and upwardly projecting ear L to which is pivoted the lever M by means of its two cars 70 lo and the stationary fulcrum-pin it, said bar being held in position in its bearing by the cap-plates Z Z, as Shown.

The bar L has a reciprocating motion imparted thereto in the direction of its length by means of the lever N, fulc'rumed upon a stud m, set in the front face of the block B and having formed therein the rectangular slot m to receive the block m mounted upon a stud set in the bar L, and the cam-path m formed in the periphery of the cylinder E,

which acts upon the truck m carried by a stud set in the upper end of said lever N, as shown in Figs. 1, 2, and l. The rear arm of the lever M carries at its end a roll a, which fits into and is acted upon by the cam-path a, formed in the right-hand end of the cylinder E, as shown in Fig. 4.

therein, the curved -slide 0, held in position therein by the cap-plate O and the screwstud 02 set in the back or inner side of said slide and projecting through a slot in the segment M and the nut 71. and check-nut n, as

shown in Figs. 1, 2, and 4.

The plate 0 has cut through it a slot 0, through which projects the stud or pin 0, screwed into the outer face of the slide 0 to receive onc'end of the spring 0 the other end of which is secured to the screw head or stud 0 set in the cap-plate O, as shown in Figs. 1, 2, and 4, the tension of said spring 0 serving to press said slide downward, which downward movement is limited by the round nut a coming in contact with the finger 19, secured to the front of the ear L in a fixed position, as shown in full lines in Figs. 1 and 2 and in dotted lines in Fig. 4, the fingerp being so located as to prevent injury to the channel-knife, and the spurs by coming in contact with the work-supporting table when the machine is operated without work resting upon said table.

The segmental arm M of the lever M has formed thereon, between the slide 0 and its hub, a lug or block 19, which projects beyond the outer face of said slide or toward the right of Figs. 1, 2, and 5, upon the outer curved face of which isysecured, by means of the clamping-plate 19 and the bolt 19 the upper curved trimming-kni fe fiwhich is mounted in substantially the same wayas the knifej is secured to the lever L and in substantially the same curved plane. The clamping-pl'atep has formed upon or secured to its lower edge the outwardly and downwardly projecting noseiecer, which serves as a secondary presserfoot to bear upon the work while it is being fed and while the presser-foot 7L3 is raised from the work. The under or operating surface of the nose-piece 0" has formed at its outer corner a small downwardly-projecting lip r, to press with greater force upon the sole in line, or nearly so, with the path of the channel-cutting knife, and said nose-piece is also provided with a sharp-pointed spur s, which projects downward therefrom in line with the cut made by the trimming-cutters, as shown in Figs. 1 and 11.

o The channel-cuttingknife-bladet is formed on the lower endof a rectangular bar t, with its cutting-edge oblique thereto, as shown in Figs. 4 and 13. The barand knife are clamped between the clamping-plates u and a, secured together by the bolta the whole formingthe channel-knife-holding stock, whichis pivoted to the lower end of the slide 0 by means of the. cylindrical hub orshank u projecting obliquely from the back side of the plate u, and fitted to a correspondinglyoblique hole in said slide and the washer a and screw 14, all asshown in Figs. 7,8, 9,and 10. The plate it has formed upon the side thereof opposite said oblique hub a and at its lower end a semi-conical boss a, in the large end of which is set. the screw 4), upon which is mounted the truck or roll 11, which is constructed and arranged to bear upon the tread-surface of the boot or shoe sole toward the center of its width, and the small end of said semi-cone has formed upon its lower side the lug c which bears upon the sole in the path of the channel-cutter and near the edge of the sole in close proximity to the upper trimming-knife.

The plate uhas formed in its upper portion a curved slot which is concentric to the axis of motion of said plate, as shown in Fig. 10, and a pin 1: is set in the slide 0 in position to project into said slot to serve in connection with said slot to limit the movement of the channel-knife holder about the axis of the oblique hub 24 said pin being shown only in dotted lines in Fig. 6. The

- construction, arrangement, and operation of the channel-knife stock are a very important part of my invention, whereby the channelknife is automatically adjusted to the varying plane of the tread-surface of the sole being of the lug r with the upper surface of the sole.

P is a lever mounted upon the fulcrum-pin k and carrying at its free end the roll w,

which is acted upon by the cam-surface 20', formed on the periphery of the cam-cylinder E. The lever P has secured thereto, near its fulcrum, the spring-arm P, the free end of which is constructed and arranged to press upon the extension niof the stud n when the cam 103 raises the upper end of said lever P,

4 thereby adding increased pressure to the slide O, and through it to the channel-knife and its stock during the time that the channel-knife is being moved toward the right of Figs. 1

. and 2 to cut a short section of the channel.

The machine is driven by a friction-pulley mounted upon a shaft having its bearings in the base of the column or upon the floor in close proximity thereto in any well-known mannerand a belt leading from a pulley on said shaft to the grooved wheel G, said friclion-pulley being controlled by a treadle mounted upon the floor or the base of the column in any well-known manner.

The treadle, friction-pulley, and drivingshaft, forming no part of my invention, are

not shown in the drawings.

The operation of my invention is as follows: The several parts of the machine being in the positions shown in the drawings, the operator first turns the wheel G in the direction indicated by the arrow t] on Fig. 3 by hand a distance equal to about one hundred and fifteen degrees, when the trimming-knives will have been moved away from each other I. to the extreme of said separating movements,

the presser-foot and the nose-piece T will have been raised to the extreme of their upward movements, and the pawl-lever J will have been moved to the opposite extreme of its vibration from the position shown in Fig. 3 and caused the disengagement of the front pawls from the teeth of the plate g and the engagement of the rear pawls with the plate g and the bar L with the lever M M, the channelknife and its stock, the upper trimming-knife and its lever, and the spring-operating lever P will have been moved to the extreme of their movements toward the left of Figs. 1 and 2. The operator then moves the handlever (1 against the roll 01, so as to move the lever H and the table 0 about the fulcrum of said lever and move the bar H toward the rear of the machine until there is sufficient space between the upper surface of the free end of the table 0 and the point of the channel-knife t to permit the edge of the sole at the shank to be inserted between them, in which position the bar H is locked by the rear pawl and ratchet against forward movement of the same or upward movement of the table 0. The operator then takes the lasted shoe with the sole secured thereto and to the last and inserts the edge of the sole at the shank just in front of the heel between the table 0 and the channel-knife t, with the tread-surface of the sole upward and the welt resting upon the table and the front edge of the table pressing against the upper in close proximity to the welt, the heel of the shoe being toward the left and the toe toward the right of Figs. l and 2 when he opcrates the friction-clutch to cause the camshaftD to revolve. The first operation caused by the revolution of said shaft is to cause the presser-foot to descend till the spur 11 set therein is in close proximity to or has slightly entered the surface of the sole, when the pawl-lever J is vibrated to its central position, thereby releasing the rear pawl from the ratchet-teeth of the plate g, when the tension of the spring e causes the bar 11 to be moved toward the front of the machine, thereby raising the front end of the table 0 with the work thereon until the upper surface of the sole comes in contact with the lower end of the presser-foot, which in the meantime has continued to descend until it has nearly reached its lowest position, when the pawl-lever J completes its vibration toward the front of the machine and the front pawl engages with the teeth of the ratchetplate g and firmly locks the table 0 against downward movement. When the presser-foot completes its downward movement and firmly clamps the sole and the bar It with the lever M M, the channel-knife and its stock with .the gage-lug v and the roll o resting upon the sole, the former near the edge of the sole and the latter about three-fourths of an inch (more or less) nearer the center of the sole, the upper trimming-knife and its lever and spring-operating lever P are moved tomultaneou'sly to trim a short section of the sole edge, at which time the several parts have assumed the positions shown in the drawings, and as the shaft D continues its motion about its axis the presser-foot commences to rise, the lower trimming-knife begins to descend, the pawl-lever J is moved to the center of its vibration to release the front pawl from the ratchet g, and the spring-arm P of the lever P is raised from contact with the extension n of the stud 01 hen the presser-foot has been raised, so as to withdraw the spur i from the sole, the bar L with the lever M M, the channel-knife with its stock, the upper trimming-knife, the lever P, and spring-arm P are moved toward the left of Figs l and 2 to feed the shoe, the nose r, the gage-lug v and roll '0 resting upon the 'surface'of the sole, and the spur '5 being within the sole and the channel-knife and the upper trimming-knife being within the cuts last made thereby and aiding by their friction in the feeding of the shoe. When the feeding of the shoe is completed, the upper trimming- 'knife is raised and the pawl-lever J completes its rearward vibration and causes the rear pawl to engage with the ratchet g and lock the table against farther upward movement. These operations may be repeated at each revolution of the shaft D until the sole has been channeled from the heel on one side around the toe to the heel on the opposite side and the sole-edge has been trimmed for the same distance to a uniform distance from the upper, during which time the channel-knife is automatically maintained at a uniform angle to the portion of the sole upon which it is acting for the time being by the swiveling of its stock about the oblique axis thereof, caused by the pressure of the rollo and the lug 12 upon the surface of the sole, and by virtue of the oscillating movement of said stock the channel will be formed in the shank at a somewhat greater distance from the edge of the sole than around the ball and toe of the sole, which is a very desirable thing to do. I V

The object of mounting the channel-knife holder or stock in an oblique bearing is to keep the axis of oscillation of said stock as low as possible and at the same time keep the lower end of the slide 0 at such an elevation that it shall not come in contact with the sole of the shoe to its injury while cutting the channel in the shank, I Y

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a machine for channeling boot or shoe soles after they are secured upon the last, the combination of a work-support to receive the welt side of the sol'e edg'e, a press er-foot to rest upon the treadssurface of the sole, a channel-cutting tool, a holder for said tool provided with two bearing-surfaces independent of the main presser-foot arranged to rest upon the sole, one near its edge and the other nearer the center of its width, said toolholder being mounted upon a pivot located above said bearing-surfaces with its axis in a vertical plane between said bearings, whereby said tool-holder is made to automatically accommodate itself to the varying surface of the sole and maintain the channel-cutting tool at a uniform angle to the surface of said 'sole, substantially as described.

2. In a machine for channeling boot or shoe soles-while secured upon the last, the combination of a work-support, amain presser-foot arranged to bear upon the sole opposite to the work-support, a vibrating lever provided with a nose-piece or supplementary presser-foot, a spur to enter the sole carried by said nose-piece, a channel-cutting tool, a stock or holder for said cutting-tool pivotally mounted and provided with a gagelug to bear upon the sole near its edge, and a roll or trunk mounted upon, said stock and arranged to bear upon the sole at a distance from said gage-lug toward the center of the sole.

3. In a sole-channeling machine, the combination of an automatically-adj ustable worksupport, the vertically-reciprocating presserfoot h provided with the spur 11 the lever M M, the nose-piece or supplementary presserfoot 1', carried by said lever, a cam for vibrating said lever, the slide 0, carried by said lever M M, a spring for pressing said slide downward, the channel-cutting tool it, the tool-carrier u to, pivoted to the slide 0 and provided with the gage-lug c and the truck i all constructed, arranged, and adapted to operate substantially as described.

4. In a machine for channeling and trimming the edges of boot or shoe soles after being secured upon the last, the combination, with an automatically-adjustable and locked work supportor table, of the presser-foot 71 the lever K, carrying said presser-foot, a cam for vibrating said lever, the lever M M, mounted upon a horizontallymovable fulcrum, the segmental slide 0, mounted in a bearing in said lever, a spring for pressing said slide downward, a stop to limit said downward movement, a nose-piece or secondary presser-foot formed upon or carried by said lever, a cam for vibrating said lever, a

bar connected thereto and provided with two sets of ratchet-teeth the shoulders of which face in opposite directions, a spring connected to said bar and arranged and adapted to move said bar and work-support in one direction, a pawl-lever, a cam for vibrating said lever, and two pawls mounted upon opposite ends of said pawl-lever, with their operating ends facing in opposite directions, whereby the said work-support may be automatically locked in a raised or depressed position.

6. The combination, in a sole-channeling machine, of the pivoted Work-support H c, the bar H, connected to said support, the spring e, the hand-lever cl and roll (1 for moving the work-support against the tension of said spring, the two opposing sets of ratchet-teeth g and g, formed upon or secured to the bar H, the lever J, the two opposing pawls h and it, carried by said lever J, a cam for vibrating said lever, the slide L, the lever M M, carried by said slide, a cam for vibrating said lever, a cam and lever for reciprocating said slide and moving said lever laterally, the segmental slide 0, mounted in a curved bearing in said lever M M, the nosepiece 1 r, carried by said lever, the knife stock or holder to u, pivoted to the lower end of the slide 0 and provided with the gage-lug 1: the channel-knife t and the roll 4), carried by said stock or holder, the spring 0 the lever P, provided with the spring-arm P, a cam for vibrating said lever P, the stud n M, set in the slide 0 and engaged by the spring P, and a fixed stop constructed and arranged to limit the downward movement of said slide 0, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 15th day of 40 December, A. D. 1890.

JOHN B. HADAWAY.

Witnesses:

N. O. LoMBARD, WALTER E. LOMBARD.

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