US296715A - Tacking-machine for lasting boots or shoes - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. E. WOODWARD, R. ASHE & E. P. GRANDY. TAGKING MACHINE FOR LASTING BOOTS OR SHOES.

No. 296,715. Patented Apr. 8, 1884.

(No Model.) 2 Sheets-Sheet.z. E. WOODWARD, R. ASHE & E. P. GRANDY.

TAGKING MACHINE FOR LASTING BOOTS 0R SHOES. No. 296,715. Patented Apr. 8, 1884.

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ERASTUS \VOODWARD AND ROBERT ASHE, OF SOMERVILLE, AND EDVVABD I F. GBANDY, OF BOSTON, MASSACHUSETTS.

TACKlNG-NIACHINE. FOR LASTING BOOTS OR SHOES.

SPECIFICATION forming part of Letters Patent No. 296,715, dated April 8; 188%.

Application filed February 23, 1884. (No model.)

To all whorls it may concern:

Be it known that we, Enlis'ros Woonwann, of Somerville, in the county of Middlesex, Bonner- Asnn, of said Somerville, and En- WARD FRANK GRANDY, of Boston, in the county of Suffolk, all in the State of Massachusetts, citizensof the United States, have invented a new and useful Improvement in driving mechanism, which can be readily moved and placed by one hand, and located in relation to a jack or last, to be conveniently used during the act of bringing up and turn ing over successive sections of the edge of the I upper upon the insole of the shoe. In machines of this character it is very essential, first, that the tack be driven automatically, second, that the tack feeding and driving devices be so light and so supported that they can be easily moved and placed by one hand;

. porting the same.

and, third, that the tack-driving mechanism have universal or very nearly universal adjustment in relation to the last or jack for sup- In the patents granted to Erastus Woodward, No. 246,437, dated August 30, 1881, and No. 248,544, dated October 18, 1881, there are shown stationary tack-driving mechanism, and a jack, which is movable in relation thereto, and which, by an upward movement, is brought into position to receive the fastening-tack. In Patent No. 218,354, granted to Voodward and Brock, there is described a peg-driving device for use in the lasting process, which can be brought down to the surface of the work; but thefirst named of these two forms of lasting-instruments is not found tobe as advantageous as the present, in that it requires not only the lifting of the jack and shoe to the tacking mechanism every time a tack is driven, but also skill in the steadying and adjusting the weighted jack to x the correct position for receiving the tack, which in practice requires the use of both hands. The second of these two patents is not applicable to the present invention, in that the mechanism therein described is so heavy that it" cannot be easily moved and located audheld upon the work by one hand, while in our invention one hand is left free for the necessary .manipulations of the upper.

Referring to the drawings, A is the post or standard of the machine, and supports the 6 principal operative devices. Bis arod eX- tending upward from the post, to which is hinged the bracket 0. This bracket 0 supports at its end the rod or shaft D, which carries the transverse or horizontal. shaft or pivot e. To this pivot e is hinged the arm 0. This arm is quite long and carries or supports the tack-feeding and tack-driving devices. The tack-driving mechanism comprises the sleeve c, the nozzle c, and the driver c, and the driver is attached to a driving-bar c and is rcciprocated by means of the lever 6 which is pivoted at one end to the pivot e, and is connected with the driver-bar at the other end by the link 0 This lever, preferably, is moved downward against the stress of the springs a and h, the latter of which is coiled around the pivot c, by means of the treadle c" and connecting-rod 6*".

Any suitable feeding mechanism may be 8 used for feeding the tack-strip. W'e prefer to employ the tack-strip described in Patent No. 197,609. The feeding mechanism shown comprises the pawl f, which has a four-motion movement communicated to it by means of c the link j", which is reciprocated at the proper time by arm f forming a part of lever c, and the pawl is moved in and out by the cam-slot f, which receives a cam-pin, f, on the end of the link f and thereby the pawl-lever, f, 5 which has a fulcrum at f", upon which it is also reciprocated. A spring, f fastened to the fulcrum-post, bears on the pawl-lever as a friction device to hold it in place, and another spring, f acts with the cam upon the end of the lever to obtain a quick disengagement of the pawl from the tack-strip. The arm f is slotted at both ends to provide the necessary periods of rest for the pawl. In operation,

upon the downward movement of the lever e, the pawl is moved out from the feedway and back, and upon the upward movement of the lever the pawl is moved in to engage the tackstrip and then forward to feed it.

We have arranged in the nozzle, for centering the tacks as they are driven, the arms g g, which are pivoted so that their inner ends project into the driveway. These ends have a groove, which receives the point of the tack while it is being forced down by the driver, and centers it and holds it upright during its passage, "and are then separated by the head of the tack. The arms or jaws are held closed in the drive-way by means of springs g acting on their outer ends. This tacking device is balanced upon the pivot e by the counterbalancing-weight E. The jack employed is similar in construction to that shown in Patent No. 254,756, but of course any other similar jack may be used. 7

It will be observed that the tacking device is supported in such a way that it can be moved horizontally to and from the post vertically upon the pivot e, and upon the arc of any circle within the radius of the swinging bracket 0, and that therefore within that radius it can be said to have an universal adjustment. It is provided with a handle, F, placed in close proximity to the nozzle, or to the sleeve of the driving mechanism, which, in connection with the peculiar manner of hanging the mechanism, enables the driving end of the device to be quickly, readily, and easily moved in any desired direction.

It will be observed, also, that in the mechanism described, the treadle not only serves to drive the tack, but it also serves to hold the tack -feeding and driving mechanism down upon the work while the tack is being driven. We consider this feature of our invention of very considerable importance.

In operation, after placing the last having the upper and insole thereon in a fixed and operative position upon the jack, the operator, with his pinchers, draws a section upon the last and folds its edge upon the surface of the in sole. He then with one hand holds the drawnin section to the insole, and with the other moves the tack-driving devices over the folded-in margin, and with his foot drives the tack or causes it to be driven. The tack-driving device is then moved and another tack driven, and as many are thus placed as may be necessary to secure that section. The operator then takes another section of the upper, draws it up, and treats it in the same manner.

We do not confine ourselves to the principle of the feeding device herein described, but may use any other, for we do not consider that the especial form of the tack-driving or tackfeeding mechanism isthe essential element of the invention, but rather the manner in which it is supported, whereby we obtain a light construction so hung that there is great facility obtained in moving and placing it by one hand.

The adjustments which are given the lasts by means of the construction of the jack need ed to be moved by one hand over the surface of the sole of a shoe fixed upon the jack in operative position.

2. In a tacking-machine for lasting boots and shoes, the combination of tack-driving mechanism, the pivoted arm e, and the handle F, all substantially as and for the purposes described.

3. In a tacking-machine for lasting boots and shoes, the combination of the jack for supporting the work, the taok-driving devices supported at the end of a vertically-movable arm, 0, a treadle, e, and connecting mech anism whereby upon the movement of the treadle the tack is caused to be driven, all substantially as and for the purposes described.

\ 4L. Inatacking-machine forlasting, the combination of a jack for supporting a boot or shoe in the lasting process, tack-feeding and tackdriving devices supported upon the end of a pivoted arm, 6, said pivoted arm 6, and its movable support, all. substantially as and for the purposes described.

5. In a tacking-machine for lasting, the combination of a jack for supporting a' boot or shoe, tack feeding and driving devices, and means, substantially as shown, for moving them vertically in relation to the work, and for holding the nozzle of the tack-driving mechanism in contact therewith during the driving of the tack, and also means for moving said tack feeding and driving devices in a horizontal direction, all substantially as and .for the purposes described.

6.- That improvement in lasting boots and shoes which consists in placing the last, with the upper and insole thereon, in a fixed and operative position upon the jack, drawing the upper over the insole, holding it in position with one hand, moving the tack feeding and driving mechanism over the face of the sole to the desired point with the other hand, and then driving the fastening.

7. In a tacking-machine for lasting boots and shoes, the combination of a jack adapted to be rotated in a substantially horizontal plane, and nail supporting and driving mech anism, constructed substantially as described, and having both vertical and lateral movements, as specified.

ERASTUS WOODVVARD. ROBERT ASHE. EDIVARD F. GRANDY.

IVitnesses:

F. F. RAYMOND, 2d,

FRED. B. DOLAN.

ICO

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