US1413627A - Pintle-inserting machine - Google Patents

Description

C. V. STRICKLAND.

PINTLE INSERTING MACHINE.

APPLICATION FILED JULYZQ. 1919.

1,41 3,627. Patented Apr. 25, 1922.

5 SHEETS-SHEET I.

INVENTOR I aim/ 5' V Shari/aim ATTORNEYS C. V. STRICKLAND.

'PlNTLE INSERTING MACHINE.

APPLICATION FILED JULY 29. 1919.

1,413,627. e ed Apr- 25, 1922.

5 HEETS-SHEET 2.

*1 w Mun NW II WI n'" WNW ATTORNEYS C. V. STRICKLAND.

PlNTLE INSERTING MACHINE.

I APPLICATION FILED JULY 29, 1919.

1,413,627. Patented pr- 25, 1922.

- 5 $HEETS-SHEET 3.

" mmmw INVENTOR Chi/ &3 V Sink/flaw! ATTORNEYS C. V. STRICKLAND.

PINTLE INSEBTING MACHINE- APPLICATION FILED JULY 29. m9.

1,413,627. mum Apr. 25, 1922.

s SHEETS-SHEET 4.

#3 f v wz ATTORNEYS C. V. STRICKLAND. PINTLE INSERTING MACHINE.

APPLICATION FILED JULY 29. 1919.

1,41 3,627. Patented Apr 25, 1922.

5 SHEETS-SHE ET 5.

"fr 6 I 7 ATTORNEYS CHARLES v. sTRicKLAnn, on WINSTON-SALEM, NORTH canomna, g ssrelvon. TO R. *J.

REYNOLDS TOBACCO COMPANY, or WINSTbN-SALEM, NORTH cAnoLInA, 003190- narrow on NEW JERSEY.

Application filed July 29,

To all whom it may concern- Be it known that I, CHAR ns V. STRIoK- LAND, a citizen ofthe United States, residing at l/Vinston-Salem, in the county of Forsyth and State of North Carolina, have invented new and useful Improvements in Pintle-Inserting Machines, of which the following is a specification.

This invention relates to hinge forming machines, and particularlyto a machine for attaching hinge pintles to sheet metal blanks. In particular, it involves. various improvements insuch machines of the type shown in the United States Patent to Richter No. 1,096,863, issued May 19, 1914;; though the improvements are mainly applicable also to other types of machine.

Machines of this general nature handle a sheet. metal blank, which may either be flat or formed into any other shape, the preferred type operating on flat blanks. The blanks are provided with suitable projecting elements, which the machine wraps about a wire pintleautomatically cut off and brought into engagement with the blank elements. By this operation the pintle'is permanently mounted on the blank with spaces betwen the blank elements where the pintle may be engaged by the similar elements of the other hinge member.

An important feature of these machines is the accurate control of the wirefeeding mechanism, so that a proper length of wire may be located accurately and without any deformations therein in juxtaposition to the blank elements .or tongues with engage the pintle. 4

A principal feature of my invention is'the V provision of improved wire feeding means,

together with a more eflicientcontrol there.- for- V l A further object is the employment of such means which will maintainfpositive control of the wire, and which may be adjusted to regulate with the greatest accuracy the amount of wire fed forward.

I have also devised mechanism of this type which, is capable of automatic. control through the presence or absenceof blanks in proper position to receive a pintle, so that no wire will be fed to the pintle cutting mechanism when thereis no blank positioned to receive a pintle. The specific object of this feature is to .;provide wire feeding rmrnnansnarme MACHINE.

Specification of Letters fatent. Patented Apr, 25 1922,

1919. Serial No. 314,013.

mechanism whichhis normally maintained, as by resilient pressure, 1n operative positlon,

and is rendered inactive only upon failure to feed a blank to its proper station,

In the specific. embodiment of my invention, I .employ ama'chine adapted to operate upon flat'metal container after receiving the to form the container body, the machine for performing the latter operation inclu'ding'a guideway along which theblanks are. fed.

I have reconstructed and altered the ar-' ran'ngement and mechanism of the machine so that it may be mounted directly upon the body forming machine, and is adapted to feed the pin'tle blanks directly to the guideway of the latter. In this arrangement I have also provided a drive connection bebody blanks, which pintle are bent into shape tween the driving mechanism of the body v machine and thatof the pintle machine,'to assure complete accuracy and coordination betwen the two. Moreover, I; have provided means, also coordinately driven, for" accu: rately registering the blanks way of the, body forming'machine.-,

Another feature of my invention is the on the guide improvement of the feed channel, which may be employed for. intermittently advancing the blanksuccessively to thepintling mech anism. With blanks ofthe type usually" employed, which are lithographed on one side, it is not only important to have them fed positively and positioned with complete.

accuracy, but also to accomplish these objects without in any way marring the lithographed surface. To this end I have im proved the feeding arrangement to produce a minimum of friction on the surface, and have provided means for pintling most economically and effectively for the relatively rapid wear of the sidesofthe channel'caused by theconstant friction of the sharp blank edges with a limited area on said sides.

Further objects and advantages will be apparent from the following description taken inv connection with-the accompanying drawings in which:

lithographed Figure 1 is a front viewof the entire machinemountedeon a body forming machine, part being broken away, V

I F igure-2 is a frontv view on a larger scale of the chief operating mechanism of-my machine, parts being broken away,

edges of plates 20 as by Figure 3 is a top plan view of the blank and wire feeding mechanism,

Figure 4 is a sectional view on line 4-4: of Figure 2,

Figure 5 is a sectional top view of the wire straightening and feeding mechanism taken just above the feeding rolls,

Figures 6, 7, and 8 are vertical sectional views through the clinching head and the feed, showing the successive steps in inserting and clinching the pintle,

Figure 9 is a fragmentary plan view of the lower die co-operating with the clinching head,

Figure 10 is a cross sectional view through the feed taken on line 10- 10 of Figure 2,

rigure 11 is a plan vlew of the body blank with the pintle recess cut out, V

Figure 12 is a fragmentary view of the blank, showing the first step in inserting the pintle,

Figure 13 is a sectional view 13-13 of Figure 12,

Figure 14 is a fragmentary view similar to Figure 12, showing the pintle in final clinched position,

Figure 15 is a sectional view on line 15-15 of Figure 1 1, and

Figure 16 is a sectional View on line 16-16 of Figure 14.

The machine isadapted to receive rectangular decorated blanks at one end of a feed channel or guideway, where the blank is picked up and fed by successive steps first to the cutting mechanism and then to the clinching head. This feed channel, shown best inFigures 1 and 10, has a flat bottom which may consist of a pair of bottom plates 20 and 21, mounted on a support which may be of any desired form. I have on line shown the feed channel carried mainly by bracket 22 mounted on frame 23 of a body forming machine which also carries one end of the channel. The upper faces of plates 20 and 21 form a flat channel 24L along which body blanks 25 are slid. 7 At opposite sides of the channel are upstanding flanges 26 and 27, preferably formed integral with the outer flanges may form edge guides for the blank, but i prefer to mount detachable guides thereon, as this portion of the channel is subject to constant friction from the edges of the blanks, and consequently is the first to wear out. I may provide various forms of edge guides. In the construction shown, 1 detachably mount a strip 28, preferably composed ofhardened steehon the inner surface of flange 27 as by screws 29. ()n the inner face of the opposite flange 26, I mount a similar strip of hardened steel 30 screw studs 31, on which the strip is slidably mounted, spaced from the inner face of flange 26. Between strip 30 and the adjacent fiange 26 are located a plurality and 21 respectively. These preferably in the form of short bowed springs 82 through which studs 31 pass. The strip'30 is thus held in resilient, adjustable contact with the edge of the blank 25, and holds it firmly in position in the channel without causing it to bind. It will be apparent that, in the construction shown, four wearing surfaces on each strip can be presented to the edge of the body blank, as the'strips are reversible, both as to top and to bottom, and as to front and rear faces, since screws 29 and studs 31 are equidistant from the top and bottom of the strips and. are equally spaced apart.

I have provided means for sliding body blanks along channel 2 by a step by step movement. This may consist of a feed bar slidably mounted between plates 20 and of spring elements,

in). 21, preferably having its upper face flush with, and forming part of the bottom of channel 24. Feed bar 38 is pivotally connected through lugs 3a to link 35' pivoted at its opposite end to the upper end of rock arm 36 which is pivoted at its lower end to bracket 22 and connected intermediate its ends to connecting rod 37 which carries an eccentric strap 38 engaging an eccentric 39 on vertical shaft 40, carried by the frame of the machine and preferably driven through bevel gears ll from drive shaft 42 of the body forming machine. Connecting rod 37 is'attached at its ends to eccentric strap 38 anc to the pivot member on rock arm 36 by oppositely threaded connections, so that the normal distance of the rock arm 36 from the eccentric may be adjusted by rotating rod 37. As will be seen, this will vary the location of the blanks at theend of.

the feeding stroke of the feed bar and facilitates the accurate positioning of the blanks in register with the operating mechanisms. it is apparent that various otherarrangements may be made for reciprocating the feed bar, independently of the body forming machine drive. While any method of supplying the blanks to the feed mechanism may be used, my machine is adapted for hand feeding, to facilitate which I have located aplatfform a2 -at the rear of the left hand end of the channel, upon which may be piled the rectangular blanks ready for feeding.

I have provided means on feed bar for engaging the rear edges of successive blanks.

In the form shown, I have provided a series of identical engaging elements spaced. along y the feed bar by a distance'slightly greater than the length of a blank. Each of these elements, shown best in Figure 2, may con sist of a dog 43, pivoted at 44 in an undercut recess in the feed bar 33, its inner end 45 being normally pressed downward into contact with the bottom of the recess, by a spring 46. In its normal position, the

outer end of the dog projects slightly above the upper surface of the feed bar into the channel, and is adapted to engage therear end of a blank; a

I also provide means for holding the blanks in position against the bottom 'of the channel. This means preferably consists of a plurality of blocks 47 shownbest in Figures 2, 3, and 10. These blocks may be of wood or other suitable material, their'weight being-sufficient to hold the blank against the channel bottom without m'arring the decorated surface of the blank during the feedthereof along the channel. Blocks 47 are arranged to rest lengthwise on the bottom of the channel, and areloosely held in position by guide plates 48 projectingover the top of flange26 and adapted to ride on guide pins 49, carried by'the flange. 'Any desired number of blocks 47 may be used, but they form, in any event, asub'stantially continuous pressure element bearing on' the upper surface of the blank. The pressure from blocks 47 and strip 30 on'the blanks is sufficient to hold them in place when the feed bar 33 is traveling toward the left after completing a feed stroke,v do gs 43 sliding under blanks 25, springs 46 being relatively weak. The feed operation consists of a for-- ward or feedingmot-ionof' the feed bar in which each dog 43 carries a blank forward along the channel for a fixed distance, and a return motion of the. feed bar, in WlllCll each dog is pulled back-under the preceding blank until it engages the rear edge thereof, when the forward motion is again started.

The operations hereinafter described are' performed on the blank "during the backwark stroke of thefeed' bar, the operating mechanisms serving further to hold the blanks 1n posltion.

The main operating mechanism is mounted on a ra1n'50 reciprocated vertically in gnide'ways carried by overhanging arm 51 through, connecting rod 52 carried crank 53 on shaft 54 mounted at one endon bearings 55 in arm 51, and at the other end in a bearing 56, which may be carried by the body of the machine. Shaft 54 is driven by means offbevel gears 57 from shaft 40 and preferably is constructed in two parts detachablyconnected as by collar 58 keyed to both parts of the shaft 54, to facilitate assembly and repair of the machine. It will: be apparentthat the operativemechanism maybe reciprocated in other. ways, if desired; Mounted on the loweriend of ram is the carrier head, consisting of a horizontal plate fit), shown best inFigures' 2 and 6. I mount on plate '59 the cutting head and; the crimping head, in any desired way.' I have showna downwardly extending flange 60 at the rear of head ,59"near its left hand end. towhich the cutter 6]. is detachably fixed as by screw 62. The face of the cutter is so shaped that will cut the faredge ofthe blank to form a pintle engaging element. This element preferably is produced by cuttinga series of spaced recesses 63 in. the blank, 'leaving' projecting tongues. 64 between them, asshown. Ihave shown the form of hinge which has two'tongues on the body blank, but obviously any number may be used.- Mounted in plate 20 or, if. desired, formed as a partthereof, is the diev cooperating with the cutter. v r 'At the opposite end of the rear edge of carrier head 59 isa similar downwardly pro-' jccting fiange 63 having at each end short forwardly projectingend flanges 64. A plate 65 is detachably mounted across the front ends of flanges 64% to delinea guideway-between flanges .63 and. 64 andsa-id plate, in which thepresser block 66 is adapted to reciprocate vertically. This block is 05 normally held in depressed position against lugs or other stop-means, preferably engaging' plate 65, by-means' of. a spring element of any desired form engaging the upper face of the block. I have shown a block rubber spring 67 mounted on standards 68011 the upper" side'of plate 59, the lower end of the spring carrying a plate 69, sli'dable vertically on said standards and carrying plungers 70, passingthroughplate, 59 and bearingyieldably against the upper side; of head66." i l V The pintle insertingfmechanism is' designed to perform the entire operation of downward motion of the mechanism. To accomplish this object, the pintleis first pressed into the tongues 64,-forcing them downinto a recess 71' in crimping die 72, which iseither mounted in or forms an in-' tegral part of plate 21. I Recess 71' is shaped insuch away that when the pintle is pressed againstthe tongues 64"and adjacent o1 tions of the blank, the. recess accommodates the downwardly bent portions to form a, i I

sunken seat for the pintle. I also'provide means for-simultaneouslyturning the outer- J ends of the tonguesnpwardl y, preferably to a, position at right angles with the blank" body. This means, preferably consists of ai 1'15 fixed; lip 71 which, in the construction;- shown, forms the rear edge of, depression"; 71 butit will be apparent that other fixed abutment-s or other members may-bensed instead of lip1715to turn the outer endsjof the tongues upwardly either by being fixed in such a location'or' being movable against the tongue ends to force them upward. In, the construction shown, it will be noted that 11 571 practically forms. element separate. 125 7 from the depressionin, frontiof-"it, having the independent function of f'turning the tongue ends upward .whilethe depression receives the blank to form a pintle seat .v These upwardly directed ends are then bent 13-0 around the pintle to firmly hold it in place. Fresser block 66 is operated to press the pintle into the holding tongues to form a seat for the aintle. For this purpose, the block has a fiat lower face 73 lying above recess 71. At the inner edge of face? are located a plurality of downwardly projecting fingers '74, registering with recesses 75 in die 72, leaving tables 76 between the recesses, the blank being so positionedthat tongues 6 are located opposite and rest on tables 76. Spaced outwardly from and opposite to each finger 7a is a guide rod 77, slidably mounted in a bore 78 in head 66, a spring 7 9 locatedin the bore resiliently pressing the guide rods downward.

I mount the tongue clinching mechanism on the carrier head. This may consist of clinching fingers S0 pivoted in vertical recesses in the lower edge of flange 63, each finger being located above one of the tables 76. A spring pressed plunger 81 bears against the forward end of the extended upper face of each finger, normally holding its lower incurved end 82 in its rcarmost position. Head 66 is recessed opposite the lower end of each finger 80 to permit the finger to swing forward between fingers 7%. As

will be seen from Figures 6, 7 ,.and 8, the

pintle is inserted lengthwise bet-ween guide rods. 73 and fingers 74, belng prevented from i sliding out of registry with recess 71 by-the guide rods and fingers. The descent of the carrier head brings the lower face 73 of the presser block against the pintle and presses it into tongues Gel, curving their outer ends upwardly, as shown in Figure 7. "Face '73 then comes into contact with the surface of the blank, the motion of the head 66, stops, the continued descent of the carrier-head forces flange-'68 downward against the re sistance of spring 67, head 66 riding upin its guideway. clinching finger 80 comes into contact with a table 76 and the further descent of the flange 63 causes the finger end to slide forward and clinch the upturned ends of tongues 64 over the depressed pintle. It

.will. be noted that presser block 66 is extended beyond the end recesses 63 and ,presses the pintle into the blank at each side of said end recesses, into the position shown plalnly in Figure 16,:so that the pintle is seated at its ends in depressions in the blank body. 1

The pin'tle may be fed to the machine in anydesired way; I have shown a preferred form which includes meansfor intermittently feeding a wire and cutting off the proper length therefrom, the device also bein g. adapted for straightening the wire while it is being fed.

nism, best shown in Figures 2 and 3, is mounted on a bracket 83 attached to overhanging arm51; On the outer end of the be adju stably .The lower end 82 of each The, wire feeding mecha lower bearings 87 and 88 in the bracket.

The shafts are connected above the upper bearings 86 by meshing pinions 89, so that they revolve in opposite directions. The rear shaft carries intermediate its upper and lower bearings a ratchet- 90 engaged by pawl 91, mounted on rock arm 92, pivoted loosely on shaft 84. Link 93 is adjustably pivoted, by means of pivot bolt 9 mounted in slot 95, on the outer end of rock arm 92 and carries on its opposite end, as shown in Figure 1, eccentric strap 96 engaging eccentric 97 mounted on vertical shaft 40. lit will be seen that the rotation of, shaft 40 will operate the rock arm 92 and intermittently revolve shafts Stand 85. The adjustment of bolt 94 in slot 95 will vary the extent of swing ofv rock arm 92, thus varying the degree of rotation of shafts 84 and 85 and regulating theamount of feed, as will be hereinafter seen. 7 Check pawl 98 is mounted on a lug 99 attached to bracket 83 to prevent reverse motion of the ratchet.

()n the lower end of shaft 84 is mounted feedroller 100, pressed against and 00-' These rollers are grooved tostraighten any small irregularities in the wire, and are pressed together with suflicient force to grip the wire and feed it'.

obtained by having bearing 88 of the shaft 85 carried by threaded in adetachable plate 104 mounted on the lower face of the bracket, said'bolt I a block slid able in ways 1n bracket 83 and normally This pressure may 7 103 bearing against the outer face of block 102. It will be apparent that, if desired, 7

spring pressed means may be'used, pressing against block 102 and may be adjustable by mounting it with its outer end in contact with. bolt'103, as shown in Figure 4. The upper bearing 86 of shaft 85 is sufficiently loose to permit the slight play necessary in adjusting the position of block 102 to produce the proper pressure between the feed wheels; or, ifdesired, an adjust able bearing similar to the lower bearing may be inserted instead of the fixed bearing 86 for shaft'85.

a straightening wheel 105 adjustably mounted on an extension of bracket 83, and grooved so that the wire passes partly around wheel 105 and then a short distance in the opposite direction around roller'10O to the point of contact with roller 101. This will serve to iron out irregularities in the wire. Guide slot 106, through which the wire passes from a holder outside the ma.-

In order to straighten the pintle wire before delivering it to they pintle inserting mechanism, 1 have provided chine, is carried by lug 107 attached to the bracket extension upon which wheel 105 is mounted. Upon the opposite side of rollers 100 and 101 from lug 107 is mounted a grooved guideroller 107 adjustably fixed on the lower side of bracket 83, the axis of roller 107 being adjustably clamped in a transverse slot in the bracket. The pintle wire is fed to the clinching mechanism through a passage in guide block 108-, which fits closely against the side of the reciprocating presser block66 so that the edge of the block, in its descent, Will shear off the wire. The parts are so proportioned that" this will not occur until guide rods 77 are in,

contact With the face of the blank and fingers 74 areslightly below the face so that the wire is positively located above recess 71. The feeding operation of the wire is so timed that the Wire-is fed forward under head 66 duringthe upward motion of the head, and is held stationary while the head is descending, rock arm 92 being "on its backstroke duringthe pintle cutting and clinching operation.

I have further provided means for preventing the wire feed from operating when no body blank is located under the presser block. To accomplish this object, I provide a relatively heavy arm 109 pivoted at one end to an upstanding extension 110 on the rear channel flange 27. The other end of arm 1O9 has a rearwardly extending stud 111 to which is connected, by means of link 112, a lever 1 13 pivoted at 114 to bracket 83, the opposite end of the lever projecting through the. bracket and being formed into an arcuate. releasing cam 115, having a bevelled upper face 116. A pin 117 mounted on pawl 91, extends to a point immediately above face 116 of the releasing cam. The free end of'arm 109 is positioned so as'to rest on the upper surface of a blank located in position beneath the presser block. When no blank is so located, the end of arm 109 drops into a recess 118 in plate 21, shown in Figures 2 and 10, thus pulling the left hand end of lever 113 downwardly and elevating releasing cam115, pin 117 being pushed outwardly by the inclined face 116 of'the cam, leaving pawl 91 out of engageoperat ve position.

ment with ratchet 90. In this position, it will be apparent that arm- 92 may rock back and forth continuously-without rotating shafts 84 and 85 to feed the wire, as the lower end of pin 117 slides back and forth along face 116 of the releasing cam and holds pawl 91 out of engagement,

regardless of the position of arm 92. Consequently no wire is fed in the absence of a body blank under the crimping head.

As stated, the blank feeding mechanism is so constructed as to be adapted for feeding the pintled blanks to the feedwayi of a standand body forming machine. I have provided mechanism adapted to be mountedon the latter to receive the blanks delivered from the feed of my machine and position them accurately on the body machine feed so that the, carriage of the latter will engage them without any manipulation :by the operator.

This mechanism preferably'consists of a le ver 119 pivoted on a bracket 120'mounted on the bed of a body forming machine,- one end chronized with the feed of the blanks, both being driven from shaft 40, that positioning plate 124 is lifted during the feeding motion of the pintle machine to receive a blank, and descends during the return motion of the feeding mechanism, locating the blank properly so that it is engaged and removed by the carriage of the bod-yvmachine prior to the feeding of the next succeeding blank This mechanism, of course, will be omitted'when my machine is operated as a separate unit.

a The operation of my'machine is as follows: The decorated rectangular blanks are fed in any desired manner, by hand or other.- wise, onto the left hand end ofchannel 24, which is left-uncovered by block 47 for this purpose. The first of thedogs 43 engages its edge and during the forwardmotion of feed inserted. -()n the next, forward mot-ion, both blanks are advanced. In this or a subsequent advancing step, the blank is positioned under cutter 61, which descends during thereturn motion ofth'e feed bar and cuts the edge of the blank ina suitable location-so as to form a pintle engaging element, which may consist of a succession of tongues and recesses. Ram 50 then rises and the cut blank is advanced onestep, to position it beneath the clinching mechanism, arm 1O9 riding over the upper surface of the blank and maintaining the wire feeding mechanism in the rock arm 92 is actuated to revolve shafts 84 and and feed a suitable length of wire through guide block 108. During the return motion of;the-feed banthe'carrier head descends, first cutting off the pintle, thenpressing it into the blank to form a seat, upturning the ends of the tongues, and finally clinching the tongues about the pintle. Upon the ascent of the carrier head, the next blank, which; has just beenrecessed, takes its place-.-

Each, blank is fed to the delivering end of.

the channel, where it is projected onto 1 the feed guideway of the body forming machine,

Through: eccentric" '97 the receiving plate 1% being lifted While the forward motion of the feed bar inserts a pintle blank on the guideway, and being dropped to engage the blank and position it while the feed bar is on its back stroke.

If my machine is operated as a separate unit, any desired form of receiver for the 'pintled blanks may be provided.

For purposes of illustration, I have shown my pintle inserting mechanism as applied to a special form of machine for producing a can body, but it will be apparent that the pintle attaching mechanism may be utilized to attach a pintle to various forms of metal articles, and its scope is not confined to the specific use herein shown.

While I have described a specific form of blank, a specific form of pintle supply including a wire feed, and specific cutting and pintle inserting mechanisms, it will be apparent that numerous changes in details of the mechanism may be made; and I do not consider my invention to be limited to the specific form disclosed, further than is necessitated by the scope thereof as covered by the claims.

I claim:

1. In a pintle inserting machine, means for advancing a continuous wire from which successive pintles may be out, including a wire engaging roller, means for rotating said roller to feed the wire, and a device for normally maintaining said rotating mean's in inoperative position, said device being rendered inactive by the presence of a blank in pintle inserting position.

2. In a pintle inserting machine, means for advancing a continuous wire from which successive pintles may be cut, including a wire engaging roller, means for rotating said roller to feed the wire including a reciprocating pawl, and a device for normally rendering the rotating means inoperative by re taining the pawl in inactive position, said. device being rendered inactive by the presence of a blank in pintle inserting position.

3. In a pintle inserting machine, a horizontal feedway for blanks, pintle inserting mechanism operating on blanks in said feed way, and wire feeding mechanism for supplying pintle wire to the inserting mecha-V nism, including horizontal rollers engaging the wire, one of'said rollers having a vertical shaft, means for intermittently rotating said shaft, means for feeding blanks along the feedway, and a common drive system for synchronizing the feed of said blanks and pintle wire. 7

4. In a pintle inserting machine, a horizontal feedway for blanks, pintle inserting mechanism operating on blanks in said feedway, and wire feeding mechanism forsupplying pintle wire to the inserting mechanism, including horizontal rollers engaging the Wire, one ofsaid rollers having a vertical raises? shaft, means for intermittently rotating said shaft, means for feeding blanks along the feedway, and a device for normally rendering the shaft rotating means inoperative, said device being rendered inactive by the presence of a blank in pintle inserting position.

In a pintle inserting machine, wire feeding mechanism including a pair of op posed wire gripping rollers, and a wire straightening roller engaging the wire at a point offset from the line of passage of the wire between said gripping rollers.

6. In a pintle inserting machine, wire feeding mechanism including a pair of opposed wire gripping rollers, a wire straightening roller engaging the wire at a point offset from the line of passage of the wire between said gripping rollers, and a guide for directing the wire to the straightening roller at an angle to its line'of departure therefrom.

7. In a pintle inserting machine, wire feeding mechanism including a pair of opposed wire gripping rollers, wire straightening means including a device for guiding the wire about a substantial portion of the periphery of one roller before passing between the rollers; and a straightening guide engaging the wire beyond the gripping rollers on the concaved side of the wire.

8. In a pintle inserting machine having an inserting station, means for advancing a continuous wire, includinga pair of rotata 'ble elements between which the Wire is clamped, and means for rotating said elements; means for advancing successive blanks to the inserting station, means rendered inoperative by the presence of a blank in the inserting station, for rendering said rotating means inoperative and preventing thereby the advance of the wire, and means for severing a pintle length from the end of the wire' and attaching it to the blank. V 9. In a pintle inserting machine having an inserting station, 'means for advancing a continuous wire, including a pair of rotatable elements between 'which the wire is clamped, and means for rotating said elements, including a ratchetand an oscillating pawl engaging said ratchet; means for advancing successive blanks'to theinserting station, means rendered inoperative by the presence ofa blank in theinserting station, for. rendering said rotating means inoperative by holding the pawlout of engagement with the ratchet, and preventing thereby the advance of the wire, and means for severing a pintle length from the end of the wire and attaching it to the blank. r

10. In a pintle inserting machine having an inserting station, means for advancing a continuous wire, including rotating elements between which the 7 wire a is clamped, and means for intermittently rotating one of said ment with the ratchet, a cam element adapted to force said pawl out of engagement with the ratchet, a member. shifted from normal position by the insertion of a blank in the inserting station, and means connecting said last named member with the cam member adapted to move the cam member out of engagement with the pawl and permit the latter to engage the ratchet when a tioned in the inserting station.

11. In a pintle insertingmachine having an inserting station, means for feeding successive blanks to said station, means for intermittently advancing a continuous wire the length of a pintle, includinga pair of rotatable members between which the wire is clamped, driving connections between said members, a ratchet operatively connected to one of said members, an oscillating arm mounted coaxially with said ratchet, means for oscillating said arm, a pawl carried by the arm normally maintained in engagement -with the ratchet, an arm shiftable relative to the ratchet, a cam carried by said arm having a face lying adjacent to the normal path of the pawl and adapted to force the pawl out of engagement with the ratchet without interfering with its oscillation, and means for maintaining said cam in position to hold the pawl away from the ratchet, said last named means being rendered inoperative by the presence of a blank in the inserting station.

12. In a machine of the class described, pintle engaging mechanism, blank feeding means for positioning a blank in said mechanism to receive a pintle, means for feeding a pintle to the pintle engaging means, said feed means including a ratchet and a pawl engaging the ratchet, continuously operated to actuate the pintle feed means, a disconnecting element adapted to engage the pawl and hold it out of engagement with the ratchet, permitting the-continuous actuation of the pawl but preventing any movement of the feed means thereby, and a member connected to the disconnecting element and normally resting in the path of the blanks, the construction being such that the member is shifted by the feeding of a blank to the pintle engaging mechanism and operates to shift, in turn, the disconnecting element and permit the pawl to engage the ratchet, thus operating the pintle feed in the presence of a blank,

but rendering it inoperative in the absence of a blank.

13. In a machine of the class described, a

guideway adapted to slidably receive a plurality of blanks, in frictional contact with one wall thereof, and a removable friction blank is posi-' plate mounted thereon adapted to be reversed so as to present a new friction surface for the action of the blanks. p I

14. In a machine. of the class described, a guideway for slidably receiving a plurality of blanksya wall resiliently pressed against the blanks toforce them into contact with the opposite wall, said resiliently pressed wall being reversible to present a new friction surface to the blanks. i

15. In a machine of the class described,

guideway for slidably receiving a plurality of blanks, resilient means on one side of the i 75 guideway for pressing the blanks into contact with the opposite wall, and a plate detachably mounted on said opposite wall so constructed as to be reversible to presenta I new frictional surface to the sliding blanks. 7 16. In a machine of the class described, a

guideway for slidably receiving a plurality of blanks, and a member resting by gravity upon'the blanks to hold them in contact with the bottom ofthe guideway.

17. In a machine of the class described, .a guideway adapted to slidably receive rality of blanks, a reciprocating feed member adapted to slide the blanks along the guideway during the feed motion of the member, and means for holding the blanks in fixed position during the return movement of the member, said means including an element resting by gravity upon the blanks to hold them in contact with the bottom of the guideway.

18. In a machine of the class described, a guideway adapted to receive a plurality of can body blanks, means for feeding the blanks along the guideway to the pintle inserting mechanism and thereafter to the .feeding mechanism of abody forming ma chine; and means mounted on said body forming machine, to position the blank accurately on the feed mechanism of said machine.

V 19. In a machine of the class described, a guideway for receiving a plurality of can body blanks, means for feeding the blanks along the guideway to pintle inserting mechanism and thereafter, to the feed mechanism of. a body forming machine; a positioning plate-located above the feed mechanism of the body forming machine, and'means for first shifting the plate to receive a blank and I then for returning the plate to position the blank accurately, and

actuating both the blank feeding means and driving means for the positioning plate shifting means so asto operate both means in synchronism.

In testimony whereof I have hereunto set my hand. i I

CHARLESV. STRICKLAND.

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