USRE11776E - Box-making machine - Google Patents

Description

No. |I,776.

Reissued net. 3, 189$. c. CRAWFORD & H. w. BULLARD.

BOX MAKING MACHINE.

(Application filed Aug. 15, 1899.)

5 0 4 Sheets8haet 6/ I V /7 n f I l2 #771 gas-s16 jizrizfoky y M M' m. ||,77s. Reis sued' Oct. 3, i899.

C. CRAWFORD & H. W. BULLARD.

: BOX MAKING MACHINE.

A iication filed Aug. 15, 1899.)

4 Sheets8heet 2.

No. ll,776.

Beissued Oct. 3, I899. C. CRAWFORD &. H. W; BULLARD.

BOX MAKING MACHINE.

(Appliation filed Aug. 15, 189B.)

4 Sheets-Sheet 3.

No. ll,776. Rejs sued Oct. 3, I899.

A c. CRAWFORD & H. w. BULLARD.

BOX MAKING MACHINF.

(Application filed Aug. 15, 1899.)

4 Sheets-Sheet 4,

U ITE STATES PATENT OFFICE.

CHARLES CRAlVFORD, OF CLINTONDALE, AND HENRY WILLIAM BUL'LAR D, OF POUGIIKEEPSIE, NElV YORK, ASSIGNORS TO THE IOUGHKEEPSIE FOUNDRY AND MACHINE COMPANY, OF POUGHKEEPSIE, NEW YORK.

BOX-MAKING 'MAECHIDN E.

' L. .s SPECIFICATION tanning part of Reissiied Letters Patent No. 11,776, dated (i ct ober 3, 1899.

Original No. 629,715. dated August 1,1899. Application for reissue filed August 15,. 1899. Serial No. 72'7,292.

To all whom, it nary concern.-

Be it known than we, CHARLES CRA\V- FORD, residing at Clintondale, Ulster county,

and IIENRY WILLIAM BULLARD, residing at E 5 Poughkeepsic, Dutchess county, New York, citizens of the United States, have invented certain newand useful Int rovements in Boxspecification, reference being had therein to IO the accompanying drawings.

Our invention relates to machinery forthe manufacture of boxes and haskets,and has for its object to improve-machines of the type which employ reciprocating magnetic ham- :5 mers for drivingth nailsor tacks.

.of placingthe same on the former in conjunc- 50 tion with the fasteningbands'iu readiness to' henailed.

. Like numerals indicate like parts in the several figures.

The work-supporting table 9 and the castiron legs or standards 10, eonstitnte'the sup- Making Machines, of which the following is a portirig-frameworkofthe machine. Mounted on said table is the upper frame or stand 11,

of the tack or nail fecdingmechanism, the reciprocating hammer mechanism, the support-.

. ing and actuatingdevices for the former upon 20 which the box or basket is placed while being nailed, the'presser-fingermechanislmand in other details of construction and arrangement of the apparatusto be hereinafter described and pointed out. 1

That our invention may be better understood we have illustrated in the accompanyingdrawings one form of embodiment thereof, without intending, however, to limit our invention in its usefulness to the exact emb0di-' 3o ment which we have shown.

In the drawings, Figure 1 shows a front elevation in perspective of a machine em bod ying our improvements. Fig. 2 is a rear view in perspective of theformer and presser-fin- 5 ger mechanisms, having portions of their parts broken away for the purpose of more clearly illustrating the relationship of the coacting parts. Fig. 3 indieates,in an enlarged view, a top plan view of the tack-feeding 4o mechanism, while Fig. l isa horizontal section thereof, taken on the line X X of Fig. 3. Fig.5 shows adetail of the tack-feeding mechanism illustrated in- Figs. 3 and t. Fig. 6 shows in perspective and detached from the 45 framework of the machine the train of actuating-levers for operatingthc former or anvil. Fig. 7 shows the crossed strips of veneer require-d in the manufacture of baskets on our nmehinc, while Fig. 8 indicates the manner frame situated directly above. Whentho lowing means, which include a gear-segment of motionbetween the. said lever 2-tand the shaft 14. The lever 2* is fulcrumed by means a which is of suitable size and shape to properly support the operating mechanism. This standard is formed of uprights l2 and crosspieces 13, that are assembled .and, rigidly bolted together, and when thus organize d is j'intended to serve as a support for the main The invention consists in the i mprovements j scribed. Mounted on said shaft at a point between its bearing ends is a for\\'ardl -'-projecting rocker arm or lever 15,'that is c'onnected at its forward end to a pendent swingrodlG, whose lower end is likewise pivotally connect-ed to a rcciprocatim guide plate or i gate 17, which latter is adapted to carry the hammers 'lS. The gate thus suspended -is -slidingly supported for vertical reciprocation by a pair of vertical guide-rods 1U,'tll'l'i1l]g(1 in parallelism at either side of the gateand -which are adapted to pass vertically through the ways 20 in the upper cross-bar 21 of the shaft 14 is rocked to and fro, itope'rates to S raise and lower by simultaneous movement said gate and attached hammer-bars. The rocking of said shaft 14 is effected by the fol- 22, mounted on said shaft,and which meshes with a corresponding segment 23, that is socured to the adjacent end of a rocking lever 2t, and which is designedto effect a change of a stud 25', that projects inwardly from the upright 12 of the standard. The rocker-lever thus arranged swings in a vertical plane and serves as a connecting-lever interposed between the treadle-rod 26 and the shaft 14. The connecting-rod 26 t 5 lower end pivoted to a foot-lever or treadlebar 27. This treadle-bar is pivotally mounted on the supporting-bar 28 of the lower frame. We employ the treadle as a lifting mechanism to impart a backward movement to to the shaft 14 and which is accompanied in said movement by the simultaneous raising of the rocker-arm and-connected gate and hammers, the Weight of the latter being sufficient ordinarily to return the treadle-bar to 15 its normal position upon the removal of the pressure of the foot of the operator. As an auxiliary means to assist in the quick return of said parts we employ in connection with the tre'adle-rod. 26 a pull-spring 29, that is shown as being-connected at its 'lowerend to the treadle-bar at 30 and at its opposite upper end. to the bottom of the table. From the combination thus defined it will what manner the'hammers are vertically re- :5 ciprocated. The shaft 14 also carries loosely mounted thereon a ditferential pulley 30, (shown in Fig. 3,) whose ofiice will be hereinafter specified and explained.

Theformer or anvil 31 is shown as consist- 3o ing of a metallic shell of any desired shape and is provided on its inner corners with cars 32, the ofiice of which will be hereinafter pointed out. Said former is shown as beingaxially mounted upon the projecting 5 end of the shaft 33, whichis supported in horizontal position and extends through a sleeve 34, supported on the cross-bar 21, that forms the front bottom part of the upper framework. Said shaft is made to progresso ively rotate by. means of an annular series of teeth 35, formed on the sleeve 36, which is mounted on said shaft and which is adapted to operate in connection-with the teeth 37, formed on the segmental rack 37, which lat 4 5 ter is mounted rotatively on the'horizontal in wa'rdly-extending stud 38, that projects from the bottomcrossbar 21. The segmental rack 37 receives its motion and power by reason of'its operative connection with the shifting 5o lever 40, that is mechanically joined thereto by means of a rocking shaft 41, mounted horizontally on said table and arranged adjacent to the stand, said lever 40 being within convenient reach of the operator. The rocking shaft 41 is provided at its opposite end with a lever 42, attached at right angles thereto, which in turn is connected to the segmental rack at 43 by the connecting-rod or back bar 44. The segmental rack is pivotally sup- 6o. ported and yieldingly held in normal position by the pullspring-38, one end of which is attached to the table, while the other endis 'attached at.45 to the segmental rack, thus affording a means for quickly returningsaid rack to its normal position upon the release of the actuating-lever 40. From the comb' nationthus organized it will be seen that the has its opposite or be seen in former or anvil may be revolved orspun about one revolution by the shifting of the lever 40; but it is necessary to insure that its rotation be in but one direction, and this is accomplished by the employment of a ratchet-andpawl mechanism, which is preferably adapted to the shaft as follows: The sleeve 36, bearing the annular series of teeth 35 and mounted on the shaft 33, is provided on its inner peripheral walls 46 with ratchetteeth 47, the faces of which incline forwardly, while the shaft 33 at the point where the sleeve 36 is positioned is provided with a slot 48, extending radially through. said shift and in which is slidingly fitted the pawl-piece 49, the ends of which are adapted to engagein operative connection with the teeth of the ratchet to insure the progressive revolving of the sleeve and the shaft upon which it is mounted. To prevent the rotation of the formerin the reverse direction and to properly hold the anvil in-position so 'that the hammers will' strike squarely, a simple means is provided,

which cohsists in providing on its inner face ratchet-teeth 50, that are brought into engagement with a spring-supported pawl 51, that pfojects horizontally from the cross-bar 21, into which it sockets and which enters into engagement withsaid ratchet-teeth whenever the former tends to turn in the opposite direction from that in which it is intended to revolve.

Itis important that thereshould be no slipping of the inner and outer forming-bands (which are formed, preferably, as one continuous strip) when placed upon the anvil, and

also provision should be made to hold one end of the band d uring the spinning of the former. We obtain the first desired result by the employment of the ears 32, above mentioned, while the slot 52 serves as a means for receiving and holding the inserted end of the band during'the spinning of the anvil. The depth of the slot is varied, so as to form an incline that rises from the end of the slot adjacent to the inner side of the former to the surface level of the former at the point where the other endof the slot begins, thereby affording an exit for band end when it is desired to remove the basketfrom the former.

Tack-feeding mechanism-53 represents the nail or tack box, which is shown as being pivotally supported upon the bars 54, which are in turn supported by the cross-bar 55, attached to the upright piece 12 of the standard-fran'ie. The bottom of the box is provided with a number of slots or grooves 56, into which the nails or tacks find their way and where they are supported points downward, the number of these slots or grooves corresponding with the number of magnetic hammers or, more properly, with the numbers of ways or chutes which conduct the tacks or 1 5 "well as the delivery of the tacks to the chan- IIO- a which is provided with a rearwardly-extendnel waysofi, which lead to the hammers, the box is tipped upon its hinges as the hammerbars reciprocate. This movement of the box may be effected in various ways; but we have,

shown in Fig. 1 an upright 59, extending upward from the pendent swing-rod 1,6, and

. 53. It will be understood that whenever the v portions of at'each reciprocation of the hammers.

' of the channel--11. e., in v incline portion-and the other, 67, in the plane shaft 14 is rocked to reciprocate the hammers atthe same time the tack-box is swung upon the hinges or pivots 03, causing the tacks contained therein to be-shaken up and to drop into the grooves 56 and the tacks which are already in the grooves to slideint'o the channels. There are asmany of these channels or ways 5811s there are nails to be driven at one time, and'they are formed in a' block or bar 54 and are each provided with a cap-piece 55 to prevent the tacks from jumping out. The blocks or bars. are supported by the cross-piece 55 in a position-to give the tack or nail channels, which comprise two portions, the proper inclination in diflelent planes, respectively, to cause the nails to be readily fed by gravity from the nail-box to ward the hammers.

At the angle formed by the upper and lower the inclined channel there is arranged a device for causing the tacks or nails tobe fed one at a time downthe lower and more steeply inclined portion of the channel he devices for causing the nails or tacks to-be thus fed consist of two small picker-fingers (i6. and 67, arranged one in advance of the other and lap and which are arranged to be rec-iprocated across the channel or way, one, 66, below the angle .or junction of the respective portions the plane of the lower of theupper portion of the inclined way or channel. a -By such a disposition of the pickerfingers relatively to each other and the respective planes the tacks or-nails held in a vertical position are successivelysingled out by theengagement of the 'fingers with the shanks of the-tacks and without interference or impediment caused by the engagement or wedging in of the tipping head of the tack as it passes from the upper inclined portion of the inclined way to the lower portion thereof. As the hammers are lowered the fingers are moved synchronously in a direction to bring the upper finger across the slot, and this fin- "er is so disposed relatively to the finger Gti ihat it crosses the slot or channel as the lower finger moves away from its position across the slot, and in so doing it cuts off or separates the hails or tacks ing against the finger tack-feeding devices bar 68, which is arranged on the cross-bar 55, situated u ndern'eath the lower side of the *blocks or bars 5% so that their endsor points overwhich had been rest-- 66 from the others standing in the channel, so-that 'when' the fingers have moved 'sufliciently'far to carry the lower finger away from across the slot ,t-his lowermost nail or tack in the eha'nnelis left free to slide toward the hammer, while the others are retained by the upper finger 67. On the reverse or upward movement of the hammer the'fingers are. slid in the'opposite direction, the lower finger 66' taking its position across the channel, so that the entire.

line of tacks held in the channel or wayslides down toward the feeding device, but only the distanceoccupied by one tack or nail. These are carried by a sliding Theslide-baroS is connected with the respective fingers of the feeding device by carrying arms 68. The slidebar 68 is moved in one d irection'that which causes the finger 67 to stand across the channel-by a spring 69,, and in the opposite direction it is positively moved by some moving part of the machine each time the hammerbar is reciprocated. Fig. 4 shows the reciprocating hammer-bar as having connected with it a cam-bar 70, which engages with and moves in one direction the slide-bar and against the action of the spring 69, which returns it. The tack-channel blocks are continued beyond the tack'- feeding devices 66 and 67, just described, said portions 72 being more sharply inclined downward, by preference, than is theupper portion 54 thereof. The object in giving it a sharper pitch is to allow the tack to drop from the feeding de- The lower end of the part 72 at the mouth of the slot 58 is providednvith an inclined way ex tending at a suitable angle upward to form a platform 72 for the lodgment of the tack, which is thereby'receivcd with its head extending in a vertical plane Lvices to hammer as quickly as possible, so as --tobe picked up by the hammer in its upward reciprocation.

IIO

and adapted to face against the rear face of the magnetic hammer-bar.

The part 72 of the tack way or channel is .covered throughout a greater or less part of its extent with the cap-piece 73, which is so shaped as to have a vertical front face 74, which latter is disposed in a vertical plane and against which the hammer-bar of magnetic ironslides as it is reciproeated up and down. There is formed a recess 75 on the lower part of the front face of the cap-piece immediately adjacent to the slot 58 to permit the stem or body of the tack to rest against its upper wall whilc the-head thereof slides from the rear face of the hammer-bar to the ends thereof. The cap-piece above referred to, as well as the block or bars in which the channel for the tacks is formed, should be made of some metal which will not become magnetized, and to such an end we prefer to use brass.

Each time the ham nieris depressed to drive a tack or nail another tack or nail slides down the part 72 of 'the why and rests against the stop-plate 73 and with the head adjacent to or in contact with therear face of the magnetic hammer-bar. As the hammer is raised it carries the nail or tack up with it until it comes into engagementwith the wall of the recess 75 by the attraction which the magnet has for it. Thelower face of the magnetic hammer-bar rising above the recess! 5 oper ates to sweep off the tack-head from engagement with the rear face ofthe hammer-bar. This movement, however, does not operate to disengage the tack from the magnetic hammer-bar, but rather causes its head to engage with and be held against the lowerend of the bar, as indicated in Fig. 4. The tack ornail is causedto turn from the position indicated in Fig. 4 in dotted lines at right angles to the hammer-bar to the. position indicated in Fig. 4 in full lines, perpendicularly in line with the hammer-bar, by reason of the lower end of the hammer-bar moving upward beyond the edge of the cap-plate '73, so that the head of the tack is not only moved from engagement with the rear to the end'face ofthe hammer-bar, but is also turned into line therewith. \Vhen the tacks are held in the latter position, the sudden dropping of' the hammers operates to drive the nails or tacks, as will be understood. It will thus be seen that there is combinedwith the'tack'ways or channels and the means for feeding the tacks one at a time, which devices may be of any usual or preferred construction, a mechanism which delivers the tacks or nails to the striking-face of the hammer with the body of said nail in line with the movement of the hammer, and that the mechanism is very simple in its construction and effective in itsoperation. I

In view of the fact that the magnetism of the hammer operates to draw the nail from the channel and hold it in place during the forward movement of the hammer it is important that such movement should be capable of being governed by the operator, and

therefore the treadle is provided as a means for imparting such forward movement, while the downstroke, which should be as rapid as possible, is imparted by gravity.

It will be understood that the proportions of certain ofthe parts of the apparatus as shown in 'the drawingsthe tackways and their associated parts, for instauce-are out of proportion to the other parts of the apparatus; but this is done for the better illustration of the invention, as in practice these parts will be of relatively small size.

Te will now proceed to describe the presserfinger attachment and. its arrangement and method of operating in properly holding the band to the former in position during the fastening of 'the lapped end.

Attachedrigidly to the standard'll is a supporting-piece 77, that is provided: with a slot 77, which latter-admits of vertieallyadjustiugsaid piece. To this piece is hinged together with a single tack or nail.

a plane horizontally coincident with that of the upper face of the anvil when brought into operative relation thereto. The carrying-lever 79 is yieldingl y sustained in normal. position by the spring 81, which latter is-at tached to the frame-upright 21 at 82, while the outer'free end of the carrying-rod is slidingly mounted within the slotted guide 83, formed in the piece St. hen it is desired to manipulate the said finger-rod, the free end of the carrying-rod is grasped by the operator, and, if moved to the lower depression in said slot, will act to hold the presserfinger firmly down upon the band end required to be held, while if it is moved to its forward limit in said guide the carrying-rod or its block 80 is brought into contact with the'ejector-rod 85, which latter fits telescopically in and through the bore 86, that. extends longitudinally through the shaft 33 and to one side of the pawl-slot 48, that extends. radially therethrough, and which ejector-rod is provided with a head 87, that is adapted to strike the inner face of'the basket on the formerwheu driven outwardly by the thrust of the carrying-rod and in that manner remove the basket from the former or anvil, as well as disengaging the inserted end of the band from the slot 52. \Vhen thecarrying-rod is released from the hand of the operator, it drops back until its projected end is arrested by the inner limit of the guide-slot. seen that by the arrangement described in the foregoing the former mechanism and the It will thus be presser-finger attachment can be handled with convenience and rapidity.

Having given a mechanical description of our invention, we will now proceed to describe its operation, which is substantially as follows: The basket is made of two or more strips of wood veneer and a narrowband of .like flexible material.

(Shown in Fig. 7.) The principal strips for the body of the basket are preferably crossed centrally and secured step in the operation of the machine is to place one end of the flexible band in the groove or slot 52, as shown in Fig. 8, in the corner of the anvil. Then by the revolving mechanism described one complete revolution of the anvil is made. of veneer, which are crossedand secured cen- The first Then the two strips I re izo

trally, which had also in the cutting been scoredso that they will bend easily over the form, are placed on the anvil and held by the hand of the operator to conform to the shape of the anvil. The revolution of the anvil at this time by the hand, while the other hand still holds the flexible band tight, nowplaccs the band on the outside of theveneer. The

lifting ofthe treadle now drops the magnetic hammers, which carry in' suspension by the head tacks on the lower faces thereof and which by the force of the blow drives the tacks through the outer band, veneer, inner band and clenches them to the inner band by reason of their contact with the metal anvil. A depression of the 'treadle then will raise the gate and at the same time the magnetic hammers. Each in their upward movement will receive a tack or nail from the feeding device, as heretofore described, and bythe operation described above each side of the basket is in turn nailed properly. When the last tacks are to'be driven, the end of the band is held in position by the holdingdown finger, as shown in Fig. 8, and as'soon as the hammers rise from driving the last tacks in the now-completed box the continued forward movement of the holding-down lever acts upon the ejector-rod, as described, and removes the box from the anvil.

Having described our invention, what we desire to claim as new and useful is 1. In a box or basket machine, the combi- I nation with the framework, of a verticallyreeiprocating gate, a magnetic hammer or hammers carried thereby, and means for gniding saidgatc and hammers in a true vertical plane, a rock-shaft mounted in the frame and provided with an arm, a connection between the arm and the gate, a channel or wayfor the feeding of nails or tacks, in range of the traveling hammer and terminating adjacent to the inner face of the hammer and having a cap-piece of non-magnetizable metal that 'servesas a guide for the tacks in feeding the heads thereofto thehammer ends and against which the hammer slides in its travel past the feedway; a treadle, and connections between the treadle and said shaft, whereby the latter is operated, substantially as described.

2. In a box or basket making machine, the combination with the framework of a vertically-reciprocating gate, a magnetic hammer or hammers carried thereby, a -rockshaft mounted in the frame and provided with an arm, a connection between the arm and the said gate; a treadle having a spring arranged in a relation ofopposition thereto, and connections between the treadle and shaft,whereby the latter is operated to lift the hammer mechanism when the treadle is depressed,

. substantially as described.

3. In a box or basket machine, the combination of a vertically-reciprocating gate carrying the hammers, a rocking connectionstherewith for operatingsaid ham- 1ners, a differential pulley mounted loosely on said shaft, and connecting means between said pulley and reciprocating gate and between said pnlley and the rocking box; and suitable guideways between the box and the reciprocating hammers, substantially as described.

4. in a box or basket machine, the combiand.

box for con-' taining the tacks or nails, a rock-shaft and nation of a hammer mechanism for reciproeating the hammer, an inclined way or chan nel for-directing the tacks. or nails to the hammer, the lower portion of said inclined way being more steeply inclined and form-, ing an angle with the upper portion, and a feeding device for causing the tacks or nails to pass through the lower portion of the inclined way one at a time, that comprises" a ,paii.- of overlapping pointed picker-fingers,

one arranged in advance of the other to. singleout the tacks or nails, and the other below the angle and thus below the head of the tack, and means for positively moving the fingeiwpa irs, synchronously, in one direction and a means for moving said pairs, synchro- 'no'usly in the opposite direction, substantially as described.

5. The combination of a hammer, reciprocating substantially in a verticalplane, an inclined channel, or way through which the nails or tacks are fed by gravity to the hammer, the end of. the channel being immediately adjacent to the traveling hammer, the lower portion of said channel being inclined downward at a sharper angle than is the upper portion thereof, while the mouth portion thereof is provided with an inclined way ex:

tending at a suitable angle upward to form,

a platform for. the lodgment of the tacks, and a cap-piece extending across the said channel or .way at its end, which serves as the hammer is being moved past the end of the said channel to engage with the said tack to deliver the head thereof in engagement with the back of the ln unmer-bar, and allow said tack-head to be moved to the striking end of said hammer, substantially as described.

6. The combination of a reciprocating magnetic hammer, a channel or way for the nails or tacks terminating adjacent to one face of the hammer, said hammer-being guided to pass the end of the channel in contact with the forward tack therein and operating by magnetism to draw the tack from said channel, and a cap-piece of non-magnetizable metal'covering the said channel or way at its end and which serves as aguide for the tacks. in feeding the heads thereof to the hammer ends and'forms an inner guide for the traveling hammer, substantially as described.

7. The combination of a reciprocating magnetic hammer, a channel or way for the nails or tacks terminating adjacent to one face of the hammer, said hammer being guided to pass the end of the channel in contact with the .forward tack therein and operating by magnetism to draw the tack from said channel, and a cap-piece of non-magnetizable metal,

havin a recessed front face a ainst which the ,firovided with guide-ears and having a slot; fer holding the hand during the revolving of angles-,snid resser-lingerbeing extended sub s-timtially as described. i .9. Thecombinationwitharevolubleformer provided with guide-ears and having a slot for holding the band during the revolving of the form, of n presser-finger adapted to be brought into operative relation thereto duringthe fastening of the lapped end of the band substantially as described.

. 10. Theeembination witharevoliible former brought into operative rcliilliou thereto during the fastening of the lapped end -of the [5 band, and an ejecting-rod for removing the band from the slot, and the basket; from the former, substantially as described.

In testimony whereof We aifix our signatures in presence of two witnesses.

CHAS. ORAWVFORD. HENRY WILLIAM BULLARD.

Witnesses: I i

ALIcE M W001),

the form, of a presscr-fi-nger adapted to be FRANK J. CONNOLLV.

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