US584600A - Lasting-machine - Google Patents

Description

(No Model.) 3 Sheets-#Sheet 1.

A. F. PRESTON. `LASTINGr MACHINE.

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Patented June 15,189?.

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(No Model.)

A. F. PRESTON.

LASTING MACHINE.

Patented June 15', 1897.

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(No Model.) 3 Sheets-Sheet 3.

A. P. PRESTGN. LASTING MACHINE.

Patented June 15,1897. a

NiTnn STATES FFTCE@ PATENT ALBERT F. PRESTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE BUSELL LASTING MACHINE COMPANY, OF NASHUA, NEV HAMPSHIRE.

LASTING-IVIACHINE.

SPECIFICATON forming part of Letters Patent No. 584,600, dated June 15, 1897.

` Application led November 20, 1896. Serial No. 612,901. (No model.)

To ctZZ whom it may concern:

Be it known that I, ALBERT F. PRESTON, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Lasting-Machines, of which the following is a specifica-- drawings, and which I shall now proceed to describe in detail, and then point out in the claims hereto appended.

Reference is to be had to the accompanying drawings, and to the letters marked thereon, forming a part of this specification, the saine letters designating the same parts or features, as the case may be, wherever they occur.

Of the drawings, Figurel isaside elevation of a machine constructed in accordance with my invention, the base of the standard being broken away for lack of room to illustrate it. Fig. 2 is a plan view of the same. Fig. 3 illustrates a last with` the upper at the toe and heel drawn over it and held in place by the movable wipers of my machine. Fig. 4 is a vertical section on the line 4 4 of Fig. 2. Fig. 5 is a transverse vertical section on the line 5 5 of Fig. 4, looking in the direction of the arrow. Fig. 6 is an obverse view of the movable wipers and the flexible band which cooperates with the wipers and acts as a stop both longitudinally and laterally for the last. Fig. 7 is a section on the line 7 7 of Fig. 4, looking in the direction of the arrow. Figs. 8 and 9 illustrate other forms of stops for a last.

The machine is equipped with a standard a, rising from a suitable base a and support ing a revoluble circularbedb, having an elongated support b', upon which are mounted up* right carriers b2 h3, the former of which is stationary and the latter of which has a base b4 sliding in a slideway b5 in the said support.

Upon the stationary carrier b2 is mounted a head c, pivoted thereon by a pin c and held at any desired adjustment by a set-screw c2, threaded through a lug c3 on the carrier yb2 and bearing against the said head c.. The forward carrier is likewise provided with an adjustable head d, pivoted by a shaft dthereto, and likewise held at any desired adjustment by a screw cl2, passing through a lug d3 on the said carrier. are secured after adjustment by set-screws c4 d4, respectively, passed through the said heads and bearing against the carriers.

The shaft d', which acts as a pivot-pin for the head d, is provided at one end with a gear-wheel c, intermeshing with and driven by a pinion e6, which in turn has power imparted to it by a pinion e on a shaft ci, journaled in bearings in the carrier b3 and adapted to be rotated by a hand-wheel e3, having handles e4. The opposite end of the shaft e2 is threaded to receive a milled binding-nut e5, which may be screwed tightly against the carrier cl3, so as to lock the shaft against rotation.

The shaft d is provided at each end with a pinion f, intermeshing with rack-bars g g, each of the latter being pivoted at its rear end to the stationary carrier b2. Hence when the hand-wheel c3 is revolved it causes rotation of the pinions f, which intermesh with the rack-bars g and cause the movement of Both of the said heads c and dy the movable carrier b3 toward the stationary spiral spring h3 surrounds the standard or bar and has one end bearing against a series of washers h4 at the top end of the standard and its lower end bearing against the base of the support ZJ.

The bar 7L is slotted, as at IOO h5, to receive a roller h6, and through a transverse aperture hl in the support h is placed a wedge-shaped key hs, having its -inclined portion resting upon said roller h5. A screw hg, threaded into the support Z'/ and having a milled edge hw, bears against the wedgeshaped key and slides it longitudinally to adjust the position of the standard and the roller h2, as occasion may require. A screw 7L is threaded into the support to act as a stop to prevent too great inward movement of the key h3. By turning the screw hg, so as to force the key hs inward, the standard is depressed against the tension of the spring h3, and when the screw is turned backward the spring h3 forces the standard upward, as will be readily understood, A similar standard i, having a roller t2, is mounted in an aperture in the movable carrier b3. It, too, is adjusted by a screw t9, having a head d10 and coperating with a roller mounted in an aperture in the said standard, similar in all respects to that shown in Figs. 4 and 5.

The purpose of the rolls 71,2 and t2 on the standards 7L and t' will be hereinafter adverted to.

Upon the heads c and d are mounted the devices'for smoothing and drawing the edges of the upper over the sole at the toe and heel, so that the operator may secure the upper to the insole.

Two complementary wipers j j for the heel, shaped as shown in Fig. 2each with its front inner corner recessed, are pivoted at jj' to the head c, and when in their normal position they form, as it were, a square with a curved recess j? in the shapel of the peripheral curve of a heel, the curved edges `7'3 being complements of each other. Each plate j is provided with a curved aperture 7'4 to receive a studj, which holds the plate 7c up from them. A pin f projects into a semicircular socketjS in the inner edge of each of the wipers to stop the inward movement of the wipers.

The wipers are held in place by a top plate k, having a front curved face 7e', and secured in position by nuts 7a2, threaded on the screws The plate 7a is provided on its under face with a groove or slideway 7c3 to receive a slide l, having two downwardly-projecting pins Z/ Z, extending into slots jgjgin the edges of the wipers j, and which act to cause the wipers to have the same movement, so as to operate simultaneously. It will be noticed that the pivots j j are substantially in alinement with the front inner edges of' the wipers, so that when the latter are swung on said pivots the curved edges 7'3'7'3 approach each other, the recess contractingin proportion to the movement of the wipers.

A bowed band fm, is bent around a block m", which is pivoted to the front end of each wiper bythe screw m2, said hand being secured to the block bya screw m3, passed laterally therethrougl'i. The pivot-screw m2 for each block passes through the rear end thereof, so that the block may swing around it if vpressure be exerted longitudinally of the last against the center oi' the band. The said band may be formed of an inner strap of spring metal covered by leather, or else it may be formed of a single strip of sole leather or other suitable material.

The pivot-pins m2 are secured to the wipers in front of the pivots j in such a way that when pressure is exerted longitudinally of the machine against the center of the band m the wipers will be swung inwardly, as shown in Fig. 3.

In order to hold the band forward with the wipers in their normal inoperative positions, I employ a U-shaped spring n, secured to the head c by a pin n', and having its free end n2 bearing against the band in the rear thereof.

rIhe wipers for the front movable carrier or the toe of the upper are designated by o o, being pivoted at o o' similarly to those at j j. Since the said wipers are in all respects precisely similar to those above described for wiping the upper over the last at the heel, I shall not .describe them in detail, the only point of diiference being that the wipers for the toe are formed with curved edges 03, shaped to conform to the toe of a last, and are also provided with inwardly-projecting lugs o4, the purpose of which will be hereinafter set forth.

A band p, similar to that at m, is pivoted to the wipers, being bent around blocks similar to those at m'. If desired, instead of employing a bowed band for the wipers at the toe I may swivel to the wipers q q, Figs. 8 and 9, elongated blocks q by means of screws q2.

Projecting downward from the slide r, which moves in a groove in the top plate s, are two pins t if, passing through a curved block 2f', the wipers having apertures extending inward from the edge to receive the pins t, so that when the last is pressed against the block t the wipers will have their ends thrown inward over the edges of the last.

I will now proceed to describe the operation of my machine. An upper having been previously stretched over a last by means of lasting-pincers or in any other way the last is placed sole upward with the toe resting upon the roller t2 and the upper curved surface of the last toward the heel on the roller h2 and with the toe in alinement with the band p and the heel in alinement with the band m. Then upon revolving the hand-wheel e3 the movable carrier is fed along toward the stationary carrier, so as to cause the last to be clamped firmly between the bands m and p, which, being flexible, conform to the heel and toe, respectively, and form stops for the same when it is impossible to slide the movable carrier any farther. The press ure of the toe and heel of the last against the bands p and m is such as to cause the operating edges of the wipers to swing inward over the edges of the sole, so as to draw the edges of the upper inward and bind them firmly against the last.

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At the same time that the last is being moved toward the stationary carrier by the movable carrier and is being` clamped between two bands it is jacked or raised vertically against the inclined surfaces of the wipers, sliding up upon the rollers h2 i2 until the edges of the upper are firmly bound `against the operative edges of the wipers. Thus it will be seen that the wipers jj or 0 o not only operate to draw the edges of the upper longitudinally of the last, but they also Vdraw upon the said edges ofthe upper laterally or transversely of the last. After the carriage has been moved in toV its farthest extent to draw the edges of the upper taut at the toe and heel and lock them the nut e5 is turned to bind the shaft e2 against rotation, and then the upper may be secured to the insole by means of any suitable tackingtool.

By forming the toe-wipers o 0 with the inwardly-projecting lugs 04 the latter act as stops to prevent the upper from being displaced, since they engage the same before the wipers begin their operation and hold the last while the edges are being drawn over it.

Vhen the upper has been secured to the insole, the nut e5 is loosened and the hand-wheel reversed, so as to free the last from engagement with the wipers, the spring n' causing the wipers to return to their normalinoperative positions.

The bed h may be swung around upon the standard, there being a lock-bar il, sliding in an aperture in the bed and adapted to drop in sockets in the top of the standard for locking the bed against movement. A lever u, having a handle u2, is pivoted at n3 to the outside of one of the rack-bars and is connected to the lock-bar by an L-shaped link at, the lower arm of which passes under the rack-bar. A spring a5 is inserted between the arm of the link and the 'rack-bar, so as to hold the lockbar in its socket. By depressing the handle u2 of the lever u' the lock-bar u is lifted out of its socket and the bed may be swung until the bar drops in the next socket, which is preferably diametrically opposite the iirstmentioned one.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it maybe made or all of the modes of its use, I declare that what I claim is l. A machine of the character specied, comprising in its construction, a bed, carriers on the bed, a pair of wipers mounted loosely on each carrier, and a bowed spring for each pair of wipers attached at each end to one of the said wipers.

2. A machine of the character specified, comprising in its construction, a bed, carriers on the bed, a pair of wipers mounted loosely on each carrier, means for causing the wipers of each pair to move in unison, and stops on said wipers against which the last impinges.

3. A machine of the character specified, comprising in its construction, a'bed, a carrier having looselypivoted wipers for the toe, a carrier having looselypivoted wipers for the heel, means for causing the .carriers to approach each other, whereby the engagement of the last with the wipers automatically causes them to wipe the edges of the upper, and a slide loosely engaging the heel- Wipers for causing them to operate in unison.

4. A machine of the character specified, comprising in its construction, a bed, a carrier having loosely-mounted wipers for the toe, a carrier having looselymounted wipers for the heel, slides for each pair of wipers to cause them to move in unison, means for causing the last to simultaneously engage bot-h pairs of wipers and automatically operate them, and means for moving the last vertically.

5. A machine of the character specified, comprising in its construction, a bed, a head, a pair of wipers pivoted loosely in the head, stops on said wipers to be engaged by the last, a roller mounted below the head, and means for moving said last horizontally, said parts being arranged whereby the movement of the last automatically causes the wipers to wipe the edges of the upper, and the last is jacked against the wipers, substantially for the purpose described.

6. A machine of the character specified, comprising in its construction, a bed, a stationary carrier having a pair of loosely-mounted wipers, a movable carrier having a pair of loosely-mounted wipers, both said pairs of wipers being automatically operated by the engagement therewith of the last, rack-bars secured to one of the carriers, a shaft having pinions engaging said rack-bars, said shaft being mounted in the other of the carriers, a hand-wheel, gearing connecting said handwheel with said shaft, and means for locking said hand-wheel against rotation.

7 A machine of the character specified, comprising in its construction, a bed, a stationary carrier having a pair of loosely-mount ed wipers, a movable carrier having a pair of loosely-mounted wipers, both said pairs of wipers being automatically operated by the engagement therewith of the last, rack-bars secured to one of the carriers, ashaft having pinions engaging said rack-bars, said shaft being mounted in the other of the carriers, a shaft having a hand-wheel, gearing connecting said shaft with the pinion-shaft, and a nut on the hand-wheel shaft to lock it against rotation.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 16th day of November, A. D. 1896.

ALBERT F. PRESTON. Witnesses: 4

A. D. HARRISON, P. W. PEZZETTI.

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