US453141A - Tack-strip-making machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

- M. BROCK.

TACK STRIP MAKlNG MACHINE. No. 453,141.- Patented May Z6, 1891.

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2 Sheets-Sheet 2'.

(No Model.)

NLBROGK. TACK STRIPMAKING MACHINE.

No. 453,141. Patented May 26, 1891.

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UNiTED STATES PATENT OFFICE.

MATTHIAS BROCK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE MCKAY & COPELAND LASTING MACHINE COMPANY, OF PORTLAND, MAINE.

TACK-STRIP-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 453,141, dated May 26, 1891.

Application filed November 4, 1890. Serial No. 370,293. (No model.)

T al? wlwm may 0077/067711 ing the shaft of the cylinder; Fig. 5, a detail Be 1t known that I, MATTHIAS BROCK, of of the devices for intermittingly actuating Boston, county of Suffolk, State of Massachuthe bottom plate of the receptacle; and Fig. setts, have invented an Improvementin Tack- 6 shows a strip with tacks therein, some of 5f 5 .Strip-Making Machines, of which the followthe tacks being crossed by a covering-strip. ing description, in connection with the accom- The table D, the feed-wheel d, the gear unpanying drawings, is a specification, like letder it, the intermediate E', and the gear 2, ters and iigures on the drawings representing engaged by the said intermediate, the camllke parts. wheel e, attached to the intermediate E and 6o Io This invention is intended. as an improve` having a notch e7, the cam e4, the ratchet es ment on that class of machine represented in above it, the lever e, moved by the said cam United States Patent No. 247,143, dated Septo cut off the tack-strip, the pawl e9, the lever tember l3,I88l,and has for its object to pro- 615, to which it is jointed, the arm ew, having vide means for collating the tack-strips. the stud @13 to enter the notch c7, and the gear 65 I5 In accordance with my invention I have h are and may be all substantially as in said provided a machine of the class referred to patent, to which reference may be had, it bewith a collating drum or cylinder, upon which ing unnecessary to herein further describe the tack-strip is fed, the said drum being the said parts. moved intermittingly, and to counteract the In my invention I provide the periphery of 7o tendency of the strip' to curl upwardly, due the disk or cam e6-with a projection a, and chiefly to the quicker drying of the usual upon the upper side of the said disk I have head-covering strip I have made the said adjustably secured by a set-screw b a Jrappet drum larger at or near the center of its length, b', which in the rotation of the cam e strikes and from such larger diameter the said cyla roller or other stud on a lever b2, having 75 z 5 inder tapers toward each end. In order that loosely mounted upon its outer end a block the strips may be laid `substantially straight b3, which enters a bifurcated head 3, pivoted in the receptacle into which they are f ed from upon a vertical pivot at the upper end of a L thesaid cylinder, I have interposed between lever b4, pivoted at b5, the lower end' of the the said receptacle and cylinder an arresting said lever having pivoted to it at bG a pawl 127, 8o device, on which the strip is made to drop which as the lever b4is vibrated engages and from the cylinder, the said arresting device rotates intermittingly a ratchet-wheel bs, the having a gate or shelf, which is automatically said pawl being kept in engagement with the opened or tipped to let the strip fall into the said ratchet-wheel by a suitableV spring bf. receptacle. I have shown the receptacle as The ratchet-wheel is fast on a cam c, fast on 8 5 3 5 having wheels to run on a track, and I have a shaft c', the shaft having fast on it near its provided means whereby the said receptacle opposite end a like cam c2. These cams, as may be moved intermittingly, preferably by shown, have like heart-shaped grooves, into a cam, the movement of the receptacle causwhich enter suitable rollers or other studs 4L ing the more uniform laying or distribution of like arms c3, jointed to suitable ears of a 9o 4o of the tack-strips in the receptacle. carriage c5, shown as mounted on rollers c6 The features in which my invention more on a track c7. This carriage constitutes a particularly consist will be hereinafter more tack-strip receptacle, and its bottom plate c1" fully described, and specified in the claims to will preferably be made movable vertically, be made. as will be described. rlhe ratchet-wheel has 9 5 Figure I is a top or plan view of part of the a detent c, which co-operates with it, and the machine shown in United States Patent No. shaft c has a counter-weightc". (Shown only --f 247,143,referred to, with my present improvein Fig. l.) The lever b4 has a Segment IO, ments added; Fig. 2, a detail of one of the (see Fig. 3,) which engages a pinion 12 on the cams to be described; Fig. 3, a section to the end of a rock-shaft, to which is attached the roo 5o left of the dotted line oo, Fig. I. Fig. 4 is a shelf or gate 13, which when closed abuts detail showing the friction device for holdagainst the lower end of a chute or apron I4,

upon which the tack-strips, duly set with tacks, are dropped intcrmittingly from the carrying-cylinderf, to be described.

The gate is opened intermittingly to discharge the strip or strips therein into the receptacle, and to insure their propel` distribution therein the said receptacle is gradually moved back and forth on the said track by the cams c.

The tack-strip T will be set with tacks snugly, and to the said strip and tacks therein will be fed longitudinally, as provided for in the said patent, or as in other similar machines upon which United States patents to me have been granted. These strips may have the heads of the tacks therein kept in place by a thin head-covering paper strip T. The tack-stri p in practice is cut off in lengths, usually of about thirteen inches long, by the usual `cutter-lever e. As stated, these tackstrips are in drying liable to curl, owing to the drying of the covering-strip, which is wet with paste when applied to the foundation strip. Instead of letting these strips drop when cut off, lhave provided a carrying-cylinder f, which is shown as made up of a series of staves or strips sufficiently separated to leave Spaces between their edges for the reception of the bodies of the tacks, and the cylinder is stopped intermittingly with its slots one after the other in line with the bodies of the tacks depending from the tack-strip and being fed in usual manner. The cylinder is of greatest diameter near the center of its length and tapered therefrom toward each end, the taper near each end being more abrupt than between the ends and center of the cylinder. The leading end of the tack-strip as it is being fed from the machine upon the cylinder and before the strip is cut off is passed under a series of conforming plates 15 16 17, secured to a cross-bar 18, forming part of the frame-work. These conforming plates under which the strip is passed keep the strip down on the cylinder while being dried, the lips 16X 17' extended from the conforming plates being upturned at their en ds to insure the proper passage of the end of the strip under the plates. Thecylinderis rotated intermittingly by a pawl 10, pivoted at 20 on a pawlcarryinglever 21, pivoted at 22, the said lever 21 having at its opposite end (see dotted lines, Fig. 1) a roller or other stud, which will in practice be adjustable thereon, the said stud being acted upon by the back of the pawl c, it at such time being moved by or through the action of the arm el of the projection a, the said projection meeting the roll cl3 on said arm el a little after the pawl e has acted to move the ratchet-wheel es. The forward end of the pawl 19 engages a ratchet toothed crown-wheel 30, attached to one end or journal @2 of the cylinder, so as to rotate the same intermittingly. The tack-strips in the rotation of the cylinder are gradually dried and drop from the lower side of t-he cylinder onto the rest or gate described. The drying of thc strips may be facilitated by the action of a current of air admitted within the cylinder by a suitable pipe, or the shaft or journal of the cylinder may be hollow and perforated within the cylinder.

To prevent any rotation of the cylinder due to momentum, I provide the journal or shaft ego of the cylinder (see Figs. 1 and 4) with a friction device 33, shown as a split and pivoted block having a thu mb-screw 43, by which to close the jaws of the device more or less closely on the said journal or shaft.

The bottom plate ci@ is attached to a piston cl2, provided with rack-teeth, (see Fig. 3,) which is adapted to slide vertically in a guide ci, attached to the unde'r side of the carriage. The guide c13 has ears cu, which form bearings for a shaft c, having a gear ci, which meshes with the rack-teeth of the piston, and a ratchet-wheel c, having one of its teeth cut away to leave a broad space, as in Fig. 3.

The frame has a stand h., on which is pivoted at 71. a pawl h2; made adjustable by a screw hi. At each inner run of the carriage the pawl 7b2 meets a tooth of and rotates the ratchet-wheel and shaft, causing the gear to lower the piston and bottom plate al", on which the tack-strips are deposited.

To prevent the shaft c1'1 rotating, except when moved positive] y bythe pawl and ratchet, I have provided the said shaft with afriction device composed of two like friction devices c2", entered by a clamping-screw t, the rotation of which causes the shaft to be clamped more or less closely. ehie'liy by dotted lines in Fig. 'lhe shaft c15 has a handle (see Fig. 5,) by which to move .it and the bottom plate by hand when desired. lVhen the blank space in the ratchetwheel comes uppermost, the pawl will slip on the ratchet-wheel and not move it.

It is not intended to limit this invention to the use of the special gearing shown, by which to gradually lower the bottom plate el@ to thereby evenly lay the tack-strips in the receptacle, and instead of the particular gearing shown I may employ any other usual equivalent devices, l believing myself to be the iirst to provide a tack-strip receptacle with a movable bottom.

I claim- 1. In a tack-strip-making machine, a collecting drum or cylinder having a series of slots for the reception of the bodies of the tacks driven through the under side of the strip, substantially as described, combined with a receptacle for the tack-strips.

2. The collecting drum or cylinder slotted to receive the bodies of the tacks driveninto and depending from the tack-strip, substantially as described, combined with conforming plates, to operate as set forth, feeding devices for the tack-strip, and a receptacle, substantially as described. y

The collecting drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tackstrip and con- IOO This clamp is shown f IIO forming plates, combined with the lips and feeding devices for the tack-strip, to operate substantially as described.

4L. The collecting drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tack-strip and tack- A strip cutter, combined with a friction device and means to rotate the said cylinder and feeding devices for the rtack-strip, substantially as described.

5. 'The collecting` drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tack-strip, and the gate, combined with means to automatically operate the said gate and with feeding devices for the tack-strip, substantiallyas described.

G. The collecting drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tack-strip, and the gate, combined with means to automatically operate the said gate and with a tack-strip receptacle, substantially as described.

'7. The collecting drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tack-strip, combined With the tack-strip-receptacle, and means, substantially as described, to move the same for the better distribution of the tackstrips thereon, substantially as described.

8. In a tack-strip-setting machine, a movable collecting drum or cylinder lprovided with slots to receive the bodies of the tacks driven into the strip, the disk e, having a projection a and notch e7, and the pawl 19, combined with the armcw and paWl e9, to operate 'substantially as described.

t). In a tack-strip-setting machine, a movable collecting drum or cylinder provided ywith slots to receive the bodies of the tacks driven into the strip, the receptacle, the cam for moving it, the paWl 297, its carrying-lever, and the lever b2, combined With the cam e" and its attached tappet b', substantially as described.

l0. The collecting drum or cylinder slotted to receive the bodies of the tacks driven into and depending from the tack-strip, the chute or apron, and the gate, the rock-shaft, and pinion, combined with the lever b4 to actuate the gate, substantially as described.

1l. In a tack-strip-making machine, the collecting drum or cylinder slotted for the reception of the bodies of the tacks driven into the said tack-strip, the movable receptacle having a vertically-movable bottom plate provided with a piston, combined with a gear to engage and move its shaft and means to rotate the said shaft intermittingly, substantially as described.

In testimony Whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

MATTHIAS BROCK.

Witnesses:

GEO. W. GREGORY, EMMA J. BENNETT.

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