US431561A

US431561A - Machine for making tack-strips

Info

Publication number: US431561A
Authority: US
Publication date: 1890-07-08
Anticipated expiration: 1907-07-08

Description

QNO Model.) 2 Sheets-Sheet 1. J. A. CROSBIE.

MACHINE POB. MAKING TACK STRIP-S.

110.431,561. 4Patented July 8, 1890.

we mms 21ans co., Pauw-uma., wAswsmou, n. c.

IN@ Model.) 2 sheetssheet 2.

J. A. GROSBIE. MACHINE PoR MAKING TACK STRIPS.

No.4s1,561. PatentedJuIy 8,1890.

(EM al y UNITED STATES I PATENT OFFICE.

JOHN A. CROSBIE, OF METHUEN, MASSACHUSETTS, ASSIGNOR TO THE MCKAY n COPELAND LASTING MACHINE COMPANY, OF PORTLAND, MAINE.

MACHINE FOR MAKING TACK-STRIPS.

SPECIFICATION forming part of Letters Patent N o. 431,561, dated July 8, 1890.

Application filed December 17, 1889- Serial No. 334,070. (No model.)

To all whom t may concern.-

Be it known that I, JOHN A. CROSBIE, of Methuen, county of Essex, State of Massachusetts, have invented an Improvement in Machines for Making Tack-Strips, of which the following description, in connection with the accompanying drawings, is a specification, vlike letters and figures on the drawings representing like parts. Y

This invention has for its object to provide vmachines for driving tacks into strips, preferably of paper, with means whereby the machine will be automatically stopped whenever the strip in which the tacks are being driven is broken or buckeled up out of shape, and also when the head-covering strip becomes broken. Y

This invention is an improvement upon the class of machines described in United States Patents No. 247,143, dated September 13, 1881, and No. 102,058, dated April 23, 1889.

Prior to my invention I am not aware that a machine for making tack-strips has ever been provided with mechanism to automatically stop the machine by reason of any fault in the paper strip receiving the tacks or in the paper strip to cover the heads of the tacks.

My invention consists, essentially, in the combination, with a tack-driver and feeding mechanism for the strip in which the tacks are to be driven, of means to automatically stop the machine when the said strip is broken; also, in the combination, with the driver and feeding mechanism for the strip, of means for automatically stopping the machine when the feed of the paperis obstructed or buckeled up at or near the driver or between the driver and the feeding mechanism; also, in the combination, with the driver for a tack, of means to feed a'strip to have tacks driven into it and means to feed a coveringstrip, combined with means to automatically stop the machine when the covering-strip breaks.

Other features of my invention will be hereinafter more fully described, and pointed out in the claims at the end of this specification.

Figure 1 in front elevation represents part of a well-known'machine for making tackstrips, the same being partially illustrated together with my improvements in order that the latter may be fully understood. Fig. 2is a partial right-hand side. elevation of the machine shown in Fig. 1; Fig. 3, an outer side view of the device which I have invented and added to the machine in question. Fig. 4 is an inner side view of the device represented in Fig. 3; and Fig. 5 is a section in the line x2, Fig. 2.

The frame-work A, the power-shaft @15, the gear a thereon and engaging a gear 1,116 (shown by dotted lines, Fig. 1) on the main shaft a, the cam-disk or wheel c, having the camgroove 010, (shown by dotted lines,) the rollerstud c13 to enter the said cam-groove, the said stud being on the drive-rod bar cl2, the driverod C, secured to the said drive-rod bar frictionally by or through a friction-block f 9 and a screw 3, (the friction on the drive-rod being sufficient to enable it to drive a tack and not slip on the bar cl2, but to slip if the drive-rod strikes any unusual obstruction,)` the clutchpulleyF, loose on the main shaft and having at its left-hand end suitableproj ectionsto engage suitable recesses in the right-hand endof the hub of a cam-wheel c7, fast on the said shaft to thus form a clutch, the clutch-lever f 5, having suitable studs to enter the grooved hub f7 of the driver clutch-pulley F', the spring f8, the clutch-rod F, having the handle f4 anda projection f3, (see Figs: 1 and 5,) the vertical rod f, having a lip f2 at its upper end to engage the projection f 3 of the rod F, and having at its lower end a block f which surrounds, or partially so, the drive-rod bar, which block is adapted to be struck by the upper 4end of the drive-rod in the next rotation of the drive-rod bar after such driverod has struck an obstruction and its upper end has been pushed above the block fg, to thus lift the rod f to release the projection f3, the spring f G, the jaws o8 in the nose or foot w, out between which jaws the tack is driven by the driverod C, the springs o9 to act on the said jaws, the sliding plate B, the carriage b', the way b2, in which the said carriage moves, the arm b3 to actuate the said carriage, the arm g, the setscrew g', the hook g3, the reel N to contain the foundation strip H20, in which the tacks are to be driven, the longitudinallyslotted bed IOO E3, upon which the said strip is laid and travels, the table-plate D, the vertically-movable plate D, the feed-wheels d d', which by their teeth engage the bodies of the tacks at'ter they have been driven through the strip H20, to thus feed the said strip, the intermediate wheel E', the bevel-gear h, engaging the bevel-gear h fast on the axle h2 of the feed-roll h3, and the means for actuating the said gearing are and may be all as in United States Patent No. 247,143, which shows substantially the same devices, and wherein they are designated by the same letters.l

The main body ot' the machine herein shown is supposed to be substantially as in the said patent, my additions thereto, and to be hereinafter more fully described, being shown in Figs. 3 and 4.

I have hereinf shown a reel N2, containing a covering-strip H, a rest for the said strip, and a paste-box 14, having a roll 13. These devices are and may be all as in United States Patent No. 402,058.

I will now describe my invention. I attach to the block f', by screws 2 in holes 60, a leg 4, on which is pivoted at 5 alever 6, provided at its upper end (see Fig. 4) with a hook 40, a spring 7, acting normally to keep the hooked upper end of the said lever within or just back of the edge of the leg 4 next to it, so that the clamping-block fg, attached to the drive-rod bar cl2, as the latter rises Will not catch the said hook.l In accordance with my invention the hooked part of this lever is to be kept back out of the range of movement of the said block f so long as the paper strip H is unbroken or is being properly y presented to the driver and being properly delivered from the machine. It is also to be so kept back so long as 'the covering-strip H is unbroken. The lever 6 has a prong 9 connected to it above its pivot. The foot of the lever 6 has, as shown, a feeler 12. The leg 4 has pivoted to it at 13 afeeler 14, a spring 15, attached to the upper end of the said feeler and to the leg 4, normally acting to keep the lower end of the feeler 14 upon the strip H20, the edge of the feeler bearing upon the upper side of the said strip immediately above the usual longitudinal slot in the said bed E0, in and along which slot the bodies of the tacks travel after they have been driven through the said strip H20 by the drive-rod C in usual manner. The feeler 14 has a pin 16, which normally stands opposite a notch in the lever 6, and a second pin 2O just above the pin 16. A feeler 17 to act on the covering-strip H is pivoted on the leg at 18, the said feeler havinga cam 19.

So long as the projection f2 of the rod f engages the projection f3 of the rod F the clutch-pulleyvF is kept engaged against the hub of the cam-Wheel c7, and the machine is kept running.

In operation the strip H20 is led under the foot of the feeler 12, the foot of the lever 6, and the feelers 14 and 9, the said strip iinally passing under the roll h3, thefeeler 14, however, being the only one which actually bears or needs to bear vupon the said strip when it lies flat upon the slotted bed E or is not buckeled up.

The t'eeler 17 rests in contact with the covering-strip H, as shown in Fig. 1, and at such time the cam 19 stands as in Fig. 4, and the upper end of the lever 6 is held back by the spring 7.

In Fig. 3 I have shown the strip H20 as moving properly under the devices which I have added to the machine referred to, and it will be noticed in said figure that only the feeler 14 rests on the said strip, so that the pin 16 touches, or nearly s0, the lever 6; but should the strip break the end of the feeler drops a little, due to the spring 15, j ust enough to per' mit the pin 2O to strike the lever 6 and move it su fiiciently against the actio'n of the spring 7 to place the hook 40 at the upper end of t-he said lever in the range of movement of the block ff as it rises, thus lifting the rod f and causing it to operate, as in the said patent,

vand release the rod F and free the clutch f7 from the pulley F and stop the machine, as in the said patent.

In Fig. 3 by dotted lines I have shownthe paper strip bunched up in two places.

In case the paper bunches up under the foot of the lever 6 between the driver and the feeler 14, the hunched-up part Will strike the said foot between the feeler 12 and the Eeeler 14, and by acting against the under side of the said foot will throw the hook 40 of the lever 6 out in the range of movement of the block f, which Will lift the rod f and effect the stopping of the machine.

In case the strip H20 bunches up between the feeler 14 and the wheel 72,2, then the bunch acts upon the feeler 9 to lift it and throwr out the upper end of the lever 6, and so, also, in case 'the strip H breaks it permits the outer end of the feeler 17 to fall, so that the cam 19 by striking the lever 6 moves its hooked end out to be engaged by the blockf).

In case a tack should not be fully driven or should be broken, so that the strip cannot pass freely under the nose containing the jaws o8, then the portion of the tack above the strip by coming against the jaw nearest the leg carries the saidjaw with it, causing the spring acting on the said jaW to hit the feeler 12 and cause it to tip th'e lever 6 on its fulcrum far enough to placefits hooked end in the range of the block f5. v

Instead of the particular form of clutchpulley herein shown, I may employ any other usual or well-known form of clutch or pulley, together with any usual means to keep it in operative engagement so long as said means may be released by the rod f.

The gist of my invention is to so improve tack-strip making machines as to obviate waste due to breaking or to bulging up of the Strip.

I claim- IOO IIO

1. In a machine for making'tack-strips, the following instrumentalities, viz: a drive-rod bar, a projection thereon, actuating` means for the said drive-rod bar, a support for the strip in which the tacks are to be driven, the leg 4, a hooked lever thereupon, a feeler 14 to bear on the said strip, a spring to keep the l said feeler on the said strip, and apin or projection between the said feeler and lever to place the hooked end of the lever in the path of movement of the projection -on the driverod bar when the strip breaks, substantially as described.

2. In a tack-strip making machine, the combination of the following instrumentalities, viz: a drive-rod bar, a projection on the said drive-rod bar, means to actuate the drive-rod bar, a support for the tack-strip into which the tacks are to be driven, the leg 4, and the lever 6, having a hook and a foot, substantially as described, whereby the action of a bunched portion of the paper on the foot places the hook of the said lever in the range of the said projection to operate substantially as described.

3. In a machine for making tack-strips, the following instrnmentalities, viz: a drive-rod bar, a projection thereon, means to actuate the drive-rod bar, a support for a tack-strip, and the leg 4, combined with the hooked lever, its spring 7, and the feeler 9, to operate substantially as described. n

4. In a machine for making tack-strips, the following instrumentalities, viz: a drive-rod bar, a projection thereon, means to actuate the drive-rod bar, a support for a tack-strip, and the leg 4, combined with the hooked lever, its spring 7, and the feeler 17, havingl a cam projection, the said feelerbeing adapted to act upon the covering-strip, substantially l as described.

bar, its attached drive-rod, a projection on the said drive-rod bar, a shaft having a cam to aotuate the drive-rod bar,.a clutch on the said shaft, means to keep the said clutch in operative engagement with the saidshaft, a leg 4:, an attached hooked level' adapted to be engaged by the projection on the driverod bar, a feeler 14, and means between it and the said lever to enable-the feeler to actuate thesaid lever When the tack-strip upon which the feeler rests breaks, and means intermediate the said leg and the said clutch to actuate the latter and stop the rotation of the said shaft when the paper strip breaks, substantially as described.

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

JOHN A. CROSBIE.

NVitnesses:

GEO. W. GREGORY, E. J. BENNETT.