US534296A

US534296A - swift

Info

Publication number: US534296A
Authority: US
Publication date: 1895-02-19
Anticipated expiration: 1912-02-19

Description

(N0 Model.)

' 3 s'hetsesheen -1. J. H. SWIFT. l

BOX NAILING MAGHlfNE. y

' Patented Feb. 19, 1895.

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(No Model.) Smetssheet s.

lJ. EL SWIFT. BOX NAILING MACHINE.

. N0 '534, 296 Patented Feb. 19, 1895.

UNITED STATES kPATENT OFFICE.

JOSEPH I-l. SWIFT, OF BROOKLYN, ASSIGNOR TO FREDERIC J. SVIFT, OF

NEW YORK, N. Y. v

BOX-NAI Ll NG MACHIN E.

SPECIFICATION forming part of Letters Patent No. 534,296, dated February 19, 1895.

Application led December 2.1892. stanno. 453.848. N0 model.)

To all whom, it may concern,.-

Be it known that I, JOSEPH H. SWIFT, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Box-Nailing Machines, of which the following is a specification.

My said improvements relate to a class of box nailing machines wherein the different pieces or parts of the box or box-frame are fed in by chains, runs, carriers, or their equivalents, from the front of the machine and into adjustable guides, arms and shoes by which the pieces or parts are arranged, and held in a proper position for being nailed together.

This invention has for4 its object, generally, to improve the construction of machines of this type and render them better available for practical use than they are in the forms known at present.

Parts of my machine are covered by previous Letters Patent obtained by me, and in this specification, I shall refer to those several patents for a description thereof.

The invention consists in providing a boxnailing machine for nailing both ends of either the top, the bottom or the side piece or pieces of the box or box-frame to the end pieces thereof, at 'the same instant and by one operation; with nail driving mechanism capable of such adjustmentthat the same machine may be used in nailing boxes of different lengths or sizes;` means for holding the box or box-frame, or the end pieces thereof, and either the top, the bottom, or the side piece or pieces of the box, steady and in proper position during the operation of nailing; and, finally, means-such as endless chains, carriers, springs and a table, for instance-for supporting the box or box frame, or the end pieces thereof, togetherwith the top, the bottom, or the side piece or pieces of the box, as vthe case may be, and for conveying the same to and holding the same in the proper position with reference to the nailing mechanism in order that the operation of nailing on such piece or pieces may be carried out. I attain these objects by the mechanism illustrated in the accompanying drawings, in which 4 Figure l is a front View of the machine. Fig. 2 is a plan view of the entire machine looking along the dotted lines and no on Fig. l. Fig. 3 is a sectional View of the machine looking along the dotted line from arrow y to arrow z on Fig.v 2; and Fig. 4 is a sectional view of the nailbox and plunger-holder as used in this machine.

Similar figures and letters refer to similar parts throughout the several views.

In operating my invention, a bed A and a frame B. C of iron or other suitable material, is provided, and at one side and on this bed is supported a shaft 44, the journals ofwhich shaft rest in suitable bearings, the

said shaft having at oneend a driving pulley 29 which is driven by a belt from any suitable driving power. The driving pulley is loose on the shaft and has a conical recess in it, into which is fitted a conical friction-pulley. rIhe friction Ypulley is so secured to the shaft thatmwhen forced into the said conical recess in the driving-pulley, and so made to revolve, the said shaft 44 is caused to revolve with it. The said friction-pulley is op-l erated back and forth on the shaft, being feathered thereon, into and out of the saidA conical recess in the driving-pulley, by means of a foot piece 45, retracting spring 47, and connecting rod 46.

A pinion 30, at the other end of the Shaft 44 from the driving-pulley, drives the cogwheel 31 on the end of a shaft 43, and so gives motion thereto. On the shaft 43 is a pinion 32, which drives cog-wheel 33 on the main-shaft 2. Motion is communicated from shaft 2 to cross shaft 4 by means of connecting rods 1. These connections give motion to the nailing mechanism. In order to procure the necessary motion for the mechanism for conveying the parts of the box into the machine, I have connection from cross-shaft 4 by connecting rod 26 to bell crank 27, to connecting rod 28 and thence to ratchet 24, by means of which the shaft 25 iscaused to revolve carrying with it sprocket wheels 23 and endless chains 38.

Nail punches 48, six in number for instance, are properly suspended in and fromthe lower side, `and on each end of the crosshead 5 and enter channels in lthe ynail IOO boXes 49, of which there are likewise siX, the said nail-punches being reciprocated with the cross-head 5 but preferably notwholly withdrawn from said channels.

The nails are fed to the nail-boxes 49 through the nail tubes 50, the said nail tubes being supplied with nails from the hopper 40 of the nail feeder.

The construction and operation of the nail feeders are fully shown and described in Letters Patent of the United States granted to John J. Sullivan on the 27th day of November, 1888, and numbered 289,360. Otherforms of nail feeders may, of course, be used with my box-nailing machine.

The construction and operation of the nail boxes, nail-punches, nail-tubes, &c.,are shown and described in Letters Patent of the United States, granted to me on the 11th day of December, 1883, and numbered 289,941, save that I have improved upon said punches 48 in that I now allow the punches to hang loose in the groove 51, Fig. 4, in punch-holder 52, the punches thereby nding their own position by means of the support given to them by the nail-boxes 49 by their not being entirely withdrawn at any time therefrom.

The heads of the punches are round and have a shoulder which holds them in the groove as represented in Fig. 4. The punches andthe heads thereof are also round, as they wear better than square ones.

The cross head is provided with a nail punch holder 52, which is formed preferably of metal and which is secured to the cross-head at 58 Fig. l, by means of set screws. Such nail punch holders are so formed that. the desired number of nail punches in the case of each holder, may be suspended in and from a groove in the lower part of the holder, substantially as shown, there being thus provided, a set or series of nail punches on each side of the machine.

Enndless chains 38 or their equivalents, to support the box or box-frame, and either the top, .the bottom or the side piece or pieces of the box, and runs 10 preferably of metalto support the ends, and both to convey all the pieces of the box to a proper position and to hold the same in a proper position with reference to the nailing mechanism in ord er that such top, bottom, end or side piece or pieces of the box may be nailed together, are also provided. Attached to these endless chains at stated distances, are carriers 8, made of any suitable material, and provided at either end on the lower side with a small nut or piece. `The purpose of these additions is that they may protrude into the runs l0 the inner side of the runs 10 being lower than the outer sides to allow the carriers to pass over that side and come in contact with the ends placed therein. The top, bottom or side pieces are now placed on the endless chains one at a time directly in front of carriers 87 and end pieces are placed in the runs l0. By the motion given to the chains as before i shown in Fig.

stated, and with the aid of the carriers the pieces of the box are conveyed to a proper position for nailing.

In order that it may be known when the pieces to be nailed are in a proper position with reference to the nailing mechanism,there is on shaft 25 a ratchet 24 as before de scribed, which causes said shaft and sprocket- Wheels 23 to revolve any given proportionate distance of their circumference carrying the endless chains also a stated distance, say from carrier to carrier, thus conveying the ends and a top, bottom, or side each time under the nailing mechanism. It then rests and allows the nails to be driven into the box, where the ratchet having been drawn back, by reason of bell crank 27, the same distance it has already traveled said ratchet comes in contact with another tooth on the wheel and motion is again transmitted and the completed box-frame is withdrawn from the nailing mechanism and new pieces conveyed into proper position for nailing. For example: the machine now constructed by me has a ratchet of three teeth and sprocket Wheels containing thirty-six teeth. At every pressure upon the foot piece the ratchet revolves one-third of its circumference, thus causing the sprocket-wheels to revolve twelve teeth, carrying the endless chains twelve links. The carriers are attached to the chains twelve links apart. Thus with every motion of the machine the carriers pass from one given point to another, and I know by the stopping of the chains when the pieces of the box are in position for nailing. The sprocketwheels on shaft 35 are loose on the shaft, while the shaft is stationary, as by this arrangement there is obtained uniformity of motion. All of this mechanism rests on and is supported by table E. l, made of any suitable material, which table extends through and is part of the nailing mechanism. The forward part of this table is supported by On shaft 25, at the opposite end from ratchet 24 is a wheel 20. Attached to table E as shown in Fig. 2 is a spring 22 which holds brake 21 against the wheel 20 for the purpose of stopping the momentum as soon as the ratchet makes the stated revolution. The journals of shaft 85 rest in suitable bearings 37 which are adjustable in grooves 55, by means of handscrews 5G, as shown in Fig. 2. By moving those bearings back or forth the proper tension of the endless chains is maintained.

Extending from side to side of the frame 13. C is a shaft 16 to which are attached two arms 18 7 holding Wheels 19 said wheels being drawn downward by springs as 2. Any suitable appliance may be used in place of the mechanism described. The purpose of this mechanism is to push and hold in proper position, the different pieces of the side, top or bottom. The desired result is obtained by having the two IOO IIO

wheels or other appliance press tightly against the front piece,the spring being strong enough to push the pieces back along the endless chains until they come in contactrwith the carriers 8 when the wheels roll over the pieces allowing them to pass through the nailing mechanism.

Directly above the endless chains at their entrance to the frame C Fig. 3 lare metal shoes 7. These shoes are connected by the springs to arms 12, Fig. 2, which arms are properly attached to bars 34,Fig 8, parts of the side frame of the machine. By means of these shoes the pieces of the top, bottom or sides are held rmly against the endless chains and carriers and not allowed to overlap each other.

The runs 10 end at the beginning of the frame B C and the ends are therefrom carried between two parallel [iexible curving arms 14 and 15, secured to the fra-me by suitable metal springs 9 as shownin Fig. 2, the inner arm being lower than the outer in order that it may be inside the frame of the box. By these flexible arms the ends are held firmly in position under the nailing mechanism and in proper relation with regard to the top, bottom or side of the box conveyed bythe endless chains as heretofore described.

The operation of my box-nailing machine is as follows: The side, top or bottom pieces of the boxes to be formed having been rst placed on the endless chains 38 provided for them, and the required number of ends being in the runs 10, the machine being at rest, with the cross-head elevated, and the carriers 8 each conveying one of the aforesaid side, top or bottom pieces and two end pieces in proper position for nailing, that side, top or bottom piece and' those end pieces which are under the nailing mechanism being held lirmly in position by the flexible arms, guides and shoes as heretofore described and the back carriersin proper position to push forward the pieces for another box,the operator quickly and strongly presses his foot for an instant on the foot-piece 45, and by means of the motion thus communicated' to the parts of the machine as heretofore described, the cross head 5 is depressed. I/Vhen the cross-head is depressed, the nail punchesl suspended from it are forced down through the channels in the nail-boxes and driveV the nails, which are supplied through tubes from a suitable nail-feeder, as before set forth. driven' the cross-head is immediately caused to rise' by the operation of the machine and the next carrier conveys into position the pieces of another box by means of the motion communicated -to the endless chains by the ratchet 24 as heretofore set forth. The cross-head having been thus again elevated and the pieces of another box being in position, the operator againsets the machine in motion by pressing the end of the footpiece 45 the'aforesaid nailing again occur- The nails having ybeen ring. Each time the cross-head ascends and while ascending the nailed box-frames are carried forward on the endless chains and while falling off the end thereof they turn over and drop onto endless belts, or their equivalents, and are carried thereby to another machine, by which the other side, top or bottom is nailed thereto. The operation of thus nailing together a side, top or bottom piece and two end pieces, may be continued indefinitely. When the other top, bottom or side is to be nailed on the same machine the endless chains are adjusted so as'to be outside the runs 10, as heretofore described.

f In the practice of my invention, I do not limit myself to the exact construction of boxnailing machines herein described and shown, nor to the exact form of the special devices for which I am desirous of securing Letters Patent. y

/Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. rIhe combination, in a box-nailing machine, of sprocket wheels, endless chains and the carriers thereto attached for supporting the top or bottom piece of a box, and for conveying the same to the proper position with reference to the nailing mechanism with runs composed of parallel webs for containing the opposite parts of a box in order that said top or bottom piece may be nailed to the two other parts of the box or box-frame, substantially as set forth.

2. The combination, in a box-nailing machine, of the runs composed of webs havingfa space between them, with an endless carrier located between said runs and having side projections to extend over said runs for pushing the ends of boxrto the proper position for nailing and with nailing mechanism arranged in such order that said ends may be nailed to the top or bottom piece of the box or box-framesubstantially as set forth.

3. The combination, in a box nailing machine, upwardly extending runs to hold parts of a box and an endless carrier having side projections, arranged to push parts of a box along said runs, substantially as set forth.

4. In a box-nailing machine the combination of runs and endless chains located be.

tween said runs and having side project-ing carriers and sprocket wheels, with adjustable bearings 37, substantially as set forth.-

5. In a box nailing machinethe combination of the endless chains, projecting carriers thereon, sprocket Wheels, and runs placed perpendicular to the plane of the chains, and located on opposite sides of the chains, with a ratchet for automatically moving the endless chains and carriers into the proper position at the proper interval with reference to the nailing mechanism, of such box-nailing machine, substantially as set forth.

6. In a box nailing machine the combina- IZO tion, of upwardly extending runs, endless carriers located between said runs, springs, and

flexible arms or shoes to co-act therewith, to eration, and vertically extending runs beforce and hold the portions ofthe box in proper Death said boxes, and endless carriers having position with reference to the other parts or projections to extend over said runs to push 15 pieces of the box or box-frame during the opl parts of a box therethrough, the carriers be- 5 eration of nailing, substantially as set forth. ing located between the runs to enable the 7. In zt box-nailingmachine,avertically reprojections to push parts of n. box through ciprocatinf.;` cross-head provided at each end said runs. with a. set or series of nail uuches suh- Y. stnntially as described, in comlhinatioxi with JOSEPH 1L bWIFl lo nail boxes secured to stationary parte of the In presence ofmachine for nailing both ends of the box or JOHN J. SULLIVAN, box-frame at the same instant and by one op- C. E. SWIFT.