US262969A - Hand tacking-machine - Google Patents

Description

(No model. 2 Shets-Bheet 1..

HAND T'A'OKING MACHINE. No. 262,969. Patented -Aug. 22, 1882 ivfl'l' esses. l 2% 1%M aw haw n. PETERS. Photo-Lithograph". Wlfllinglau 0.0.

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E. MERRIT'T. HAND TAG-KING MACHINE, No. 262,969. v Patent-ed Aug. 22, 1882..

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UNITED STATES PATE T OFFICE.

EDWARD MERRITT, OF BROOKTON, MASSACHUSETTS:

HAND TACKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 262,969, dated August 22, 1882.

i Application filed December 27, 1881. (No model.)

nails in lasting boots and shoes, and my improved machine is used in connection with any of the usual lastingmachines that stretch the upper and hold itin position on the last.

Heretofore headed nails have been driven by hand; and the object of my present invention is to produce a hand tacking-machine for feeding and driving headed nails, as will hereinafter be more fully shown and described, reference being bad to the accompanying drawings, on which- Figure 1 represents a front elevation of the machine. Fig. 2 represents a longitudinal section of the same. Fig. 3 represents a vertical section on the line A B, shown in Fig. 1. Fig. 4 represents a cross-section of the nail-receptacle on the line C D, shown in Fig. 1. Fig. 5 represents a side view of the throat as seen from X in Fig. 1 and Fig. 6 represents a crosssection on the line E F in Fig. 5, showing portion of the raceways and nail-separator device.

Similar letters refer to similar partswherever they occur on the different parts of the drawings.

a is the hollow frame or handle, in which the plunger 11 is movable up and down-upward by means of the coiled spring 0 and downward by exerting a blow on the head b of the plunger b.

To the lower end of the plunger 1) is secured the driver b, which is movable up and down in the throat-piece d, as shown in Fig. 2.

A mallet is used by which to give a blow on the head I) of the plunger 12 for the purpose of driving the nail, and I prefer to use, in connection with my improved machine, a mallet the construction of which I desire to claim in a subsequent application for Letters Patent.

61 is the throat in the lower end of the throatpiece d, through which the nail is driven when a blowis given on the head I) of the plunger piece d, as shown in Fig. 2. l The yielding projectiou f serves to prevent the nail conducted into the throat from dropping out until driven by the descent of the driver-bar b.

a is a bracket cast in one piece with the frame or handle a, which bracket serves as a support for the raceways g g and the nail-receptacle h, which are secured to thesaid bracket by means of suitable set-screws or equivalent devices.

h is the rotary hopper plate or disk, having hoppers or scoops h h on its inner side, which, during therotation of said hopper-disk, take up the nails from the nail-receptacle h and deliver them upon the apron h, from which they fall between'the upper ends of the raceways g g. The disk h is provided on its outer periphery with teeth h h, as shown, and an intermittent rotary motion is imparted to the hopper-disk h by means of the rocker-lever i, hung at i, and provided in one end with a slothole, z', embracing the set-screw b on the plunger b, and in its otherendwith a pawl, 2", hinged to the lever t'at i and provided with a spring, '5 for automatically holding the pawl 45 against the teethh, and by these means the pawl '5' is caused to act upon the teeth 7& to turn the disk 72/ a partial revolution around its axis during the upward stroke of the plunger 11.

g is the cover for the raceways g g, as usual.

To one side of the frame a is hinged at k a lever, it, having an inward projection, k, as shown in Fig. 3. A spring, 70', secured in its upper end to the frame a, presses upon the lower ,end of the lever It, so as to hold the latter automatically in the position shown in Fig. 3 when the plunger b is at the upper end of its stroke.

70 is a slot-hole in the lower end of the le vcr 7a, through which extends the stud l, se

ward end, as shown in Fig. 6. The bar at is time the plunger 1) is forced down by a blow made adjustable in its connection with the Wedge-separator l by means of the set-screw a passing through slot-hole Z in the rear end of the separator Z, as shown in said Fig. 6.

Within the side channel, d, of the throat d is located a spring, 0, which is normally held against the lower end of the raceways gg, and is moved away from it by the inclined bar it forcing said spring back to allow the separator l to take a nail from the end of the raceways and to drop it into the throat d, where the nail falls against the spring-lipf, and remains in such a position until the descent of the driver-bar I), caused by a blow by the mallet on the head 11 of the plunger b.

To the rear end of the separator l is further secured a hub, 19, to which is secured the nailspreader bar 19 by means of the set-screw 12". The barpis made wedge-shaped in its forward end, 19', where it passes under a spring, q, secured to the top of the raccways g g.

The extreme lower free end of the spring g has a lip, q, the object of which is to act upon the heads of the nails to spread them apart by the action of the spring q and lip q, to allow the last nail nearest the throat-channel d to be taken easily from the raceway by the separator l. The wedge-shaped end 11' of the reciprocating bar 19 comes in contact with the spring q when the separator l is at the rear end of its stroke, and raises said spring and its lip q sufficiently to allow a nail to proceed downward against the spring-gage 0, and during the forward motion of the separator l the spring q is released from the wedge 19' and springs down with its lip q between the heads of the last two nails, causing them to be spread apart for the purpose set forth.

The machine is operated as follows: The

frame at is held by the operator grasping it in his hand and guided according to where the nails are to be driven. The plunger 1), to which the driver-bar b is secured, is normally held up by the influence of the spring 0. At the from the mallet on the head I) a tack is driven through the throat d into the shoe, and at the same time the wedge-separator l is forced back by the lower end of the plunger 1) acting on the projection 7c of the lever 16, allowing a nail to run down the end of the'raceways g g against the spring-gage 0, which is during this time automatically sprung against the ends of the raceways. During the upward motion of the plunger the spring-gage 0 is forced back by the wedge or incline a on the rod 12 being moved forward, thus allowing the wedge-separator l to force the nail from the end of the raceways g g and to automatically drop it into the throat d against the spring-lip f, where it remains until the next descent of the plunger b and its driver-bar b, and so on.

During the operation of the machine the nails are automatically taken from the nailreceptacle h and delivered properly to the raceways 9 g in the manner and by the means as hereinabove described.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent, and claim- 1. In a hand tacking-machine, in combination with the frame 0., its plunger I), spring 0, and driver-bar I), the throat (I d, spring-die ff, spring-gage 0, and the inclined wedge a 77/, and inclined lever It for operating said spring-gage, as set forth.

2. In a hand tacking-machine, in combination-with the frame a, its plunger b, spring 0, and driver-bar I), throat d d, and spring-die ff, inclined bar a n, and wedge-separator l, the raceways g g, spring-spreader q q, and wedge 19 19' for operating it, as set forth.

In testimony whereof I have aftix'ed my signature in presence of two witnesses.

ED WARD MERRITT.

Witnesses:

ALBAN ANDREN, HENRY GHADBOURN.

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