US522166A - Sole-rounding machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

J. N. MOULTON;

SOLE ROUNDING MACHINE.

No. 522,166. Patented June 26, 1894.

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(No Model.) 3 Sheets-Sheet 2.

.J. N. MOULTON.

SOLE ROUNDING MACHINE.

No. 522,166. Patented June 26', 1894.

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(No Model.)

J. N. MOULTON. sou: ROUNDING MACHINE.

No. 522,166, Patented J1me 26, 1894.

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UNITED STATES PATENT NOFFICE.

JAMES N. MOULTON,-OF HAVERHILL, ASSIGNOR TO THE STANLEY MANU- FACTURING COMPANY, OF BOSTON, MASSACHUSETTS.

SOLE-ROU NDING MACHINE.

SPECIFICATION forming part of Iietters Patent No. 522,166, dated June 26, 1894.

Application fil September 25.1893. Serial No. 436,366. (No model.)

To all whom it may concern.-

Be it known that I, JAMES N. MOULTON, of

Haverhill, county of Essex, State of Massachu'setts, have invented an Improvement in Sole-Rounding Machines, of which the following description, in connection with the accompanying drawings, is a specification, like let ters and figures on the drawings representing like parts. This invention has for its object the production of a novel machine for rounding or shaping soles, my said machine being adapted to shape the sole from a block of leather, and

with but slight adjustments, from a strip of leather.

In my improved machine the material for the sole is held between a clamping plate and a pattern plate, and a knife pivoted upon a knife plate adapted to slide horizontally in guide-ways of a carriage pivoted on a shoe fitted to slide in guide-ways of an arm, is made to travel about said pattern plate and cut the leather thereon into sole-shape as the said arm is revolved about the pattern plate. Thecarriage referred to has two roller or other studs which enter a cam shaped groove in a stationary cam-plate located below the pattern-plate on which the leather rests, and the pivot of the said carriage is located at a distance back of a line intersecting the centers of said rolls, such location of the pivot of the carriage enabling it to be moved steadily and uniformly at all points of its travel about the pattern plate.

In my machine the knife-bar may have a long range of movement toward and from the center of the pattern plate, which is stationary, and=the knife bar is acted upon by a spring-controlled lever, and a suitable connection between it and'the knife bar, whereby the knife bar, as it travels about the stationary pattern plate, may adapt itself to whatever size or shape of plate is used, the cam plate serving for diflerent sizes and shapes of soles without any change or adjustment ofits position. 7 I

One part of my invention consists essentially' in a sole rounding machine containing I the following instrumentalities, viz:-a sta- .tionary pattern plate upon which the leather to be cut is held fixedly; a stationary cam plate having a cam groove; arotatable arm as (1 having a guideway; abar adapted to slide therein longitudinally; a carriage pivoted to said bar and provided with roller or other studs to enter the groove of the said cam plate; a knife-bar fitted to slide in guideways connected with said carriage; a knife-holder carried by said knife-bar; means to keep the said knife-holder pressed up to the said pattern plate and yet adapt it to follow the contour of the pattern plate of whatever form; and means to rotate said arm and move said carriage with the said knife about the pattern plate, substantially as will be described.

Other features of myinvention will be hereinafter described and particularly pointed out in the claims.

Figure 1, in side elevation shows one form of my improved sole rounding machine adapted V to shape soles from blocks of leather; Fig.

1, an enlarged section of block h. Fig. 2 is a partial front view of the machine shown in Fig. 1. Fig. 2 is a detail of the lower end of the locking device detached from Fig. 2, together with a small part of the presser-plate. Fig. 3 is a plan view looking down below the line 00, Fig. 2, the pattern plate, and the pattern plate rest, being partially broken out to show the bolt below them 5 Fig. 3 a detail of the knife and knife holder. Fig. 4 isan under side view of the parts shown in Fig. 3. Fig. 5 is a detail, looking from the under side of the machine, of some of the devices for pulling the knife-bar back from the pattern plate when the latter is to be changed for another of a difiereut shape. Fig. 6 is a detail looking down below the line 00 Fig. 1, on' the locking mechanism to be described, the said figure, however, showing the parts in a position different from the position Fig.1; Fig. 7.

a presser rod 13 provided at its lower end with a yoke shaped presser carrier B pivoted thereto at B said carrier having detachably connected with it a presser plate E the plate being locked to the carrier by means of a suitable locking device 13, herein shown as a spring, which enters a hole in said plate, the.

said locking device, see Fig. 2", having near its free end a notch to engage a portion of 7 said presser-plate, the said locking device providing for the ready removal of one presser plate of one size or shape, and the substitution of another presser plate of a diiferent size or shape. The carrier referred to, at or near its pivotal point, has co-operating with a it a suitable evener B shown as a spring,

which abuts against a shoulder carried by the presser rod 13, one end of said spring being connected by a screw 30 to yoke B:

The presser rod B has fixed upon it in ad-I justablemanner a collar 15, having prefer more or less to place the presser plate in a position ninety degrees farther around than in thedrawings, for purposes to be hereinafter movement of the projection 0 described.

The presser rod is normally kept elevated by a suitable spring B acting against the said collar and against a portion of the head.

The head has a suitable pivot C on which is mounted a presser lever 0 having jointed to p it a red C suitably threaded at or near its lower end to receive upon it an adjusting nut 0 the rod below said nut being surrounded by a spring 0 which is represented as restingon acollar O loose on said rod, said carrier being acted upon by one arm of the treadle lever C pivoted at 0 said arm also having in it a suitable hole to receive and guide the lower end of the rod C as represented by dotted lines in Fig. 1.

The main shaft D of the machine has fast upon it a brake wheel D, and the fixed part D of a friction or clutch pulley with which co-operates the continuously running or movable part D of said clutch pulley, the said pulleys having preferably conical faces to afford the proper frictional engagement, in .usual manner.

acting normally to keep the said wedge down in the position shown in Fig. 1, at which time the friction pulley will be nnclutched and the I f rom.

shaft at rest.

The rod'D has upon its threaded portiolr' an adjustable nut or collar D the change of position of which vertically, enables the lever The main shaft is partially, surrounded between the brake pulley and, the loose pulley of the friction clutch with} a beveled fork D connected to a vertically moving rod D the threaded lower end of which is also extended, see Fig. 1, through a hole in one arm of the treadle C", a spring D C to contact with the said collar sooner or later to thus give the proper throw to the wedge D to thus insure the starting of the main shaft at the proper instant of time.

The rod D or the part thereof below the wedge D has a brake-arm D suitably shaped, see Fig. 1, to engage aV- or equivalent shaped groove at one side of the brake pulley, and stop the machine instantly when the treadle is released to let the wedge D drop, as will be described.

The treadle C has a horn c forming one part of a locking device, the other part being a hook 0 attached to a rod (2 having suitable bearings at c, the upper end of said rod having fast upon it an arm 0 against which acts a lug or projection 0 carried by the downwardly extended hub E forming part of the bevel gear E, to be described, said projection striking a suitable projection on said arm 0 and causing the hook c to be turned from its position Fig. 6 and release the lever (3 once during each rotation of the gear E, letting the said lever assume its starting position, which will .be with the inner end of the treadle down. The rod 0 is surrounded by a suitable spring 0 which is connected one end to the arm 0 and the other to the bearing 0 said spring normally acting to keep the arm a pressed toward and in the path of The main shaftD has upon its innerend a bevel gear cl which engages the bevel gear E, it rotating about a fixed stud 01 the upwardly extended part of the hubE of said bevel gear E having clamped upon it, in this present instance of my invention, the split hub d of the arm (1 to be described, said hub being confined in position by a suitable screw (Z The hub of the gear E has extended upwardly from it a stop-bar (1*, see the detail Fig. 7, said stop-bar being also shown in Fig. 1, said stop-bar by contact with the under side of thecam-plate F preventingthe rising of the gear E under the strains to which it is subjected in the act of being rotated. The post (1 referred to, has at its upper end four positioning holes 3, 4, 5, 6, and a tapped hole 7, the tapped hole receiving the bolt (1 which serves to fix the cam plate F in its operative position. The cam plate has at its under side, see Fig. 4, registering pins 8, 9, which enter either of the pair of holes 3, 4, or the pair of holes 5, 6, according to whether the pattern plate is to stand lengthwise or crosswise with relation to the frame of the machine, it standing crosswise, as in the drawings, when the soles are to be shaped from blocks of leather, or standing lengthwise, or ninety degrees farther around, when soles are to be cut from strips of leather the width of which corresponds with or is a little wider than the length of the soles to be-cut there- The cam-plate hasat its under side the groove f. The cam-plate receives and holds two likestuds 12, 13, upon which is mounted a pattern rest g upon which is laid 522,1ce' e and supported firmly the pattern plate g, the

upper ends of the studs 12, 13, entering holes in the said pattern plate.

In Fig. 3 I have broken away the pattern plate and part of the pattern rest below it to better show therbolt d hereinbefore referred to.

The arm d as best shown in Fig. 3, has a suitable guideway, as d, see Fig. 2, in which is fitted to slide the foot plate 7t upon which is pivoted at h, see Fig. 4., the carriage H provided with the roller or other studs h h which enter the groove f of the cam-plate, the said roller or other studs being nearer the end of the carriage than the pivotal point thereof, such location of the roller studs with relation to the pivotal point of the carriage insuring, even with the fixed cam-plate, a steady uniform movement of the said carriage, and a uniform action of its knife, to

be described, as the carriage is carried about the said cam plate with the slide it in the groove of the arm d through the agency of l the gears d, E, the said carriage during this operation sliding backward and forwardythe plate 71. sliding in the groove of the arm (1 under the control of a strong spring h fixed atone end to the carriage H and its other end to an arm or lever h" pivoted upon the stud h erected on the carriage H, the free end of said armor lever being herein represented as provided with a hole to receive one end of a connecting rod h the other end of which is joined to the block it which rises from the knife-bar h fitted to slide in suitable guideways in the upper portion of the carriage, H. The block 71 is provided with a suitable hole to receive the shank k see Fig. 3, of the knife carrier 77, provided with a knife 71 the said knife-carrier and knife being represented best in Fig. 3, the hole, seeFig. 1 receiving a steel bushing 5 By the employment of a spring such as 71 ,10- cated at a distance from the knife,'and interposing between the said spring, an arm and connecting mechanism, a sufficient range of movement is given to the knife bar it so that it may follow the pattern plate, of whatever size'used, it being understood that one pattern plate may be removed and another substituted for it of a different size and shape as required.

. WVhen a pattern plate is to be changed the operator will engage the handle m pivoted at m to a portion of the carriage H, as shown best in Figs. 4: and 5, and will turn said handle in the direction of the arrow thereon until the slotted portion m jointed to a portion of the said handle at m meets a pin m connected to the knife-bar, when thereafter the knife-bar will be drawn back away from the pattern plate.

In practice I provide a suitable spring as m to actupon the handle and hold it in its normal position shown in said figures.

If. it is desired to cut soles from a strip as stated, the operator will, as stated, release ure.

the screw 13 and turn the presser rod B about for ninety degrees, and will then release the bolt, d lift the cam-plate F from the top of the post d and turn the cam plate around for ninety degrees and secure it in that position as before by the bolt d In order that the knife may be made to commence to cut the leather at any desired point with relation to the pattern plate, the operator will release the screw d and turn the split hub 01 of the arm d about the hub E. In practice the knife is usually made to stop at or about the junction of the ball of the heel, or at the point marked n see Fig. 3, rather than in the position shown as occupied by the knife in said fig- Assuming that the knife is in proper starting position and the machine at rest, the operator will put his foot upon the treadle, depress its outer end and in so doing the treadle will first act upon the collar 0 and through the spring G will cause the lever O to depress the presser bar 13 and cause the presser plate 13 to descend upon theblank of leather 3 previously laid upon the pattern plate, the further depression of the lever causing its rear end to meet the collar D elevate the wedge D and force the clutch pulley parts in contact so that themain shaft will be started. The main shaft in its movement will revolve the gear E inthe direction of .the arrow upon it. When the knife starts from the position designated by n, the projection 0 will stand about in the position designated by the dotted lines n, Fig. 6, and

when the said projection in its rotation in the direction of the arrow near the hub E meets the projection 30 of the arm 0 the looking device 0 will be turned to release the treadle C, as before described, letting the springs 0 B actingin conjunction, lower the rear end of the treadle.

I have aimed to produce a practical sole rounding machine with the fewest possible parts and with the simplest possible mechanism, to thereby produce a durable, efficient, and easily adjusted machine, and while I have specifically described the various parts, this invention is not to be limited to the construction of the mechanism shown, as it will be obvious to those familiar with the art that modifications in form and shape might be made, calling only for usual mechanical skill, without departing from my invention. By the employmentof the tubular steel bushing .9 in the block it, which bushing receives the knife shank h the block is not worn and a bushing when worn may be readily removed and 'a new bushing substituted for it. It is quite essential that the shank of the blade be ICC in the knife shank prevents verticalmovement of the knife. 7

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Asole rounding machine containing the following instrumentalities, viz:-a stationary pattern plate upon which the leather to be cut is held fixedly; a stationary cam plate having a cam groove; a rotatable arm as d having a guideway; a bar adapted to slide therein longitudinally; a carriage pivoted to said bar and provided with roller or other studs to enter the groove of the said cam plate; a knife bar fitted to slide in guideways connected with said carriage; a knife holder carried by said knife bar; means to keep the said knife-holder pressed up to the said pattern plate and yet adapt it to follow the contour of the pattern plate of whatever form; and means to rotate said arm and move said carriage with the said knife about the pattern plate, substantially as described.

2. In a sole rounding machine, the following instrumentalities, viz:a stationary pattern plate; a stationary cam-plate provided with agroove; apivoted carriage having roller or other studs to enter the grooves of the cam plate and provided with a guideway at its upper side; a knife-bar mounted to slide in said guideway; a knife holder and. knife pivotally mounted in said bar; and a lever and link cooperating with said knife-bar; combined with a spring as 72/5 whereby great latitude of horizontal movement is permitted to said knifebar with relation to the longitudinal center of the cam-plate whereby said spring, lever, and connections adapt the knife to co-operate with pattern plates of different sizes, the carriage being under the control of one and the same stationary cam, substantially as described.

3. In a sole rounding machine, the gear E having a hub E; a post to support said gear hub; combined with an arm as d the hub of which surrounds and is clamped adj ustably upon the hub of the gear, said arm forming a support for the knife carriage, the adj ustment of the said arm about said hub when not clamped thereto enabling the position of the carriage to be adjusted with relation to the pattern plate, substantially as described.

4:. In a sole rounding machine, a stationary pattern plate, a presser bar, and a carrier pivoted thereon, combined with a detachable presser plate, and a locking device therefor, to operate substantially as described.

5. The stationary pattern plate of a sole rounding machine; the presser-bar, and a yoke-shaped carrier pivoted thereon; and its connected presser plate; combined with the evener spring to adapt the presser plate to a projection; devices actuated by said gear to carry the said knife-bar once around said pattern plate; a presser bar having a suitable presser plate; a spring to normally elevate the presser-bar; the main shaft of the machine; a clutch-pulley mounted thereon; means to effect the engagement of said clutch pulleys to start the said main shaft, said means having a collar D a treadle under the control of the foot of the operator; devices intermediate said treadle and said presser-bar to depress the latter; a locking device co-operating with a part of said treadle; and a gear connected with said main shaft to rotate the gear E, whereby when the operator actuates the treadle the presser-bar is first depressed to clamp the leather between itself and the pattern plate, and the clutch pulleys are thereafter engaged to effect the rotation of the main shaft, and the said treadle is locked in position by the locking device until the main shaft has rotated the gear E once, when the projection movable with said gear effects the unlocking of the treadle and the stopping of the machine, substantially as described.

7. In a sole rounding machine, the gear E having its hub provided with a projection 41"; an arm (1 connected with a portion of the hub of said gear and forming a support for a carriage containing a knife-bar and rounding knife; a pattern plate to sustain the material to be out; a presser plate to rest on said material; its carrying bar and elevating spring, combined with a treadle having a locking projection c, a lever to act on said bar, a rod connected to said lever and extended to said treadle, a spring interposed between said treadle and rod, and with a locking device intermediate said gear and said projection whereby as the said gear completes a rotation, the locking device is turned to effect the release of the treadle, and enable the presser bar and plate to be automatically lifted, substantially as described.

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

JAMES N. MOULTON.

Witnesses:

GEO. W. GREGORY, M. J. SHERIDAN.

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