US856399A - Hand-tacker. - Google Patents

Description

PATENTED JUNE 11, 1907.

w. EATON. HAND TACKER. APPLIOATIO I'ILBD JUNE 18. 1900.

unrrnn srrvrns PATENT errren.

ARTHUR l/V. EATON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATE KSON, N EW' JERSEY A OORPORA- TION OF NEW JERSEY.

HAND-TACKER.

Ne. &56,399.

Specfieation of Letters Patent,

Patented June 11, 1907.

Application filed 31111918, 1 900. Serial Ne. 20,693.

and I do hereby declare the following to be a full, clear, and exact description of the inventionysuch as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to hand tacking' devices or tools used for driving tacks into the upper and insole ol" boots and shoes during the operation of lasting.

The object of the present invention ,is to produce a hand tacking tool of simple form and arrangement in which the taeks contained in a hopper are arranged to be Shaken up and agitated and properly guided into the race-way without the necessity of employing movable lifters, gates and similar devices, the ordinary motions imparted to the tool dur ing its movements over the shoe being lasted, and the jar imparted thereto by the operation of driving the tacks, being sufficient to cause a supply of tacks to fill the race-way.

To the above end the present invention consists of the devices and combinations of devices 'which will hereinatter be described and claimed.

The present invention is shown in the accoinpanying drawings in which y .Figure 1 shows a vertical section taken on the line c-x Fig. 2, Fig. 2 shows a front elevation of the tacker, Fig. 3 shows a rear elevation of the tacker with the raceway broken oil', Fig. 41 shows a seetional view through the hopper taken on the line y-y Fig. 1, and Fig. 5 shows a sectional view ot the hopper taken on line 2-2 Fig. 4.

Similar reference numer-als will be employed throughout the specification and drawings to designate eorresponding parts.

In the drawing 1 indicates the tacker, 2 the feeding chute and 3 the hopper. The tacker comprises a frame 4 to be grasped by the hand, said rame being of substantially cylindrical 'form and carrying at its lower end a head 5 and a nose 6, a tack driving passage 7 being 'fermed :in said head and nose.

The frame i .is provided with a longitudinal 'hearing S in which is fittcd to slide a tack 4 the driving passage 7 into the work.

driver plungcr 9 to which is secured a tack driver 10 arranged to drive the tack out of The plunger 9 extends upward beyond the top of the 'fi-ame 4; and at its upper end is provided with a head 11 which is adapted to receive blows of a mallet or other device used to de- (ro I press said plunger to drive the tacks. The plunger is normally held raised by a ceiled spring 12 which surrounds its upper end and which bears at its upper end against the under side of the head 11, and at its lower end is seated in ehamber 13 Formed .in the upper end eithe [rame 1.

The Frame 41 is provided with dia'netrically dispesed longitudinal slots 14 and 15 into which project the opposite ends of a stud 16 carried by the plunger 9 which 'forms a stop 'to limit the upward throw of the 1,lunger.

As the frames of tackers are usually 'formed of comparatively so'l't metal such as cast brass, in order to prevent the undue wear ther'eof, causcd by the forcible impact of the stop stud 16 'wi th the upper ends of the slots 14 and 15 under the 'force of the return stroke of the spring 12, I have provided the hard metal wear plates 17 and 18 which are secured to the 'frame 4 by any suitable means, such as screws 19, to receive the blows of the stop block 16. The slot 14 pernits access to the interier of the driver 4 without dismantling the device. Said slot is closed during the operation of the machine by a removablc sliding plate 20 which fits in guides 21 formed adjacent to the edges of the slot 14 and said sliding plate is held in said guides by means of a screw 22.

The raceway 2 may be of any usual or preferred 'form and is l'ormed of two plates 24 'fastened together along the lower edges by means of bolts or rivets 25 and spaeing plates 26 so as to form a channel down which the tar-ks slide to the driver passage. The raceway 2 is secured by means of screws 27 in an inclined position, to an arm 28 projected rearwardly from the 'l'rane 4, and its lower end enters an opening 2%) 'l orned in the head Ioo '5 so as to deliver tacks into the driver passage 1. The lower end of the raceway 2 is notehed as shown at 30 and such notehes eooperate with a se mrating gate 31 to separate the lowermost tack in the raceway and deliver it into the driver passage? The Separator gate 31 slides in a recess raceway and with converging guide ribs 47 across the lower end of the raceway and is reciprocated at each reciprocation of the driver plung'er 9, by means of a lever 32 which is pivotally mounted upon a stud 33 at its upper end and supports at its lower end said gate, said lever having upon its inner face a cam path 34 which is engaged by a cam roll 35 mounted upon the stud 16.

The cam path 34 is so shaped that when the driver 9 is at the limit of its downward travel the Separator gate 31 is at the limit of its outward throw, and then as the plunger rises, the gate moves inwardly and se arates one tack from the row of tacks in tie race and then stands still until the driver rises above the tack, when the gate completes its inward movement and forces the tack into position under the driver. It will be noted that the movements of the gate are positive and certain, thus positive control of the tack at all times is Secured.

The head 5 carries spring pressed pins 36 which project into the driver passage 7 and support the tacks therein beneath the tack driver in position to be driven upon the descent of said driver.

As shown in the drawing, the upper end of the raceway is formed at an angle to the inclined portion thereof and extends substantially at a right angle to the tacker 1. Supported upon the u per end of the raceway is a hopper 3 which is formed preferably of some light sheet metal such as sheet iron. The hopper shown in the drawing is substan tially oblong or rectangular in shape and the raceway leads into the same by a slot formed in the front of the said hopper and extends back along the longitudinal center of said hopper, said hopper being Secured permanently to the raceway in any suitable manner, as by the block 39 which is secured by the bolts or rivets 38 to the end of the raceway 2, and the screws 40 passing through the end of the hopper 3 and entering said block 39.

As will be noted from Figs. 1 and 5 of the drawing, the upper edge of that part of the raceway which extends into the hopper is formed in two planes, the edge of the forward portion being substantially horizontal and the rear portion being inclined, forming an angle at 42, and the bottom of the tack containing chamber of the hopper is formed upon two inclines which meet at the angle 42. The forward part of the bottom of the tack containing chamber is forned by the plates 43 secured in position upon opposite sides of the raceway, and the rear part of the bottom of the tack containing chamber is formed by a plate 44 which is supported by the raceway 2 and is fastened in position by the downwardly extending lugs 45 through which the screws 40* which pass through the sides of the hopper, pass. This plate 44 is provided with a slot 46 opening into the to guide the tacks into the raceway.

It'will be noted that theforward part of the bottom of the tack containing chamber forms comparatively deep pockets upon opposite sides of the raceway which receive the mass of tacks, and that when the tool is Shaken or agitated some of the tacks will be thrown upon the plate 44 and because of the inclination thereof and the presence of the guide ribs 47 a few of the tacks will be retained on said plate to be guided into the raceway.

The hopper is provided with a cover 48, which is hinged thereto at one end by a hinge 49 and provided at its opposite end with a spring latch 50 which engages a pin 51.

The raceway is provided with the usual guard plate 52 supported above the same to i prevent the tacks from accidentally falling out. I

The operation of the device having been sufiiciently described in connection with the foregoing description, a further description thereof will be unnecessary.

Having described the construction and mode of operation of my invention, Iclaim as new and desire to protect by Letters Patent of the United States.

1. In a hand tacker, the combination with the tack driver and raceway, of a hopper supported by said raceway, said hopper hav-` ing at one end inclined pockets upon oppo- 'site sides of the raceway and at the opposite end a guide plate provided with converging guide ribs, upon which plate the tacks are discharged from the inclined pockets, substantially as described.

2. In a hand tacker, the combination with an inclined raceway, of a hopper supported thereby, said hopper having at one end thereof a slotted guide plate inclined in the opposite direction to the raceway and provided with converging guide ribs, substantially as described.

3. In a hand tacker, the combination with an inclined raceway, of a hopper supported thereby, a slotted guide plate provided with guide ribs, the ribs converging for one portion of their length and extending substantially parallel for another portion of their length, substantially as described.

4. In a hand tacker, the combination with the tack driver and raceway, of a separating gate acting to withdraw from in front of the raceway when the driver is depressed to permit the tacks to advance along said raceway until the leading tack Contacts with the driver, and to return to its first position in two movements With a dwell between to permit the driver to rise above the tack, and means for actuating the gate, substantially as described.

5. In a hand tacker, the combination of a driver, a hopper, and a raceway extending IOO IIO

&56,399 3 into the hopper and terminating intermethe letter part to guide the tacks into the diate the ends thereo'f, the bottom of the raceway, sibstantially as described. o hopper being divided near the end of the In testimony whereof I affix my signature, raceway into two portions inolinng oppoin presence of tWo witnesses.

sitely, so that when the driver is in its normal ARTHUR YV. EATON. position the forward part of the said bottom VVtnesses:

s inolined' toward the driver and the latter HoRAoE VAN EVEREN,

part away theref'om, and guiding means on ALFRED H. HILDRETH.

Images