US2286362A

US2286362A - Method of and machine for lasting boots and shoes

Info

Publication number: US2286362A
Application number: US355964A
Authority: US
Inventors: Carl F Hammann
Original assignee: NORTH AMERICAN HOLDING CORP
Current assignee: NORTH AMERICAN HOLDING Corp
Priority date: 1940-09-09
Filing date: 1940-09-09
Publication date: 1942-06-16
Anticipated expiration: 1959-06-16

Description

ll Sheets-Sheet 1 C. F. HAMMANN Fi1ed sept. 9, 1940 June i6, 1942.

METHQD OF ND MACHINE FOR-LASTING BOOTS AND SHOES 11 shets-sheet 2 C. F. HAMMANN Filed Sept. 9, 1940 METHOD OF AND MACHINE FOR LASTING BOOTS AND SHOES .Fun 16, 1942.

.Fume 16, 1942. c. F.HAMMANN I 2,286,362

I METHOD OF AND MACHINE FOR. LASTING BOOTS AND SHOES l y Filed sept. 9. 1940 1 1 sheets-sheet 5 June 16, E942. c. F. HAMMANN 2,286,362

METHOD OF AND MACHINE FOR LASTINvG BOOTS AND SHOES ll Sheets-Sheet 4 Filed sept. 9, 1940 hm @WFL Nw L .1.1.2.

W INVENTOR.

Jue 16, 1942. hc. F. HAMMANN METHOD -OF AND MACHINE FOR LASTING BOOTS AND SHOES Filed sept. 9, 1940 l11 sheets-sheet 5 INVETOR.

1l Sheets-Sheet 6 C. F. HAMMANN Filed Sept. 9, 1940 METHOD OF AND MACHI-NE FOR LASTING BOOTSv AND SHOES June 16,-194'2.

' i IVENTOR. @ma @w y BY C. F. HAMMANN Juney 16, 1942.

METHODOF AND MACHINE FOR LASTING BOOTS AND SHOES Filed Sept. 9, 1940 1l Sheets-Sheet '7 ...HVIM H y ,HHIIIIIIJA I y INVENTOR. I

June 16, 1942. c. F. HAMMA-NN METHOD OF AND MACHINE FOR LASTING BOOTS AND SHOES ll Sheets-Sheet 8 I l [E: I

l INVENTOR. 4@ma fr W June 16, 1942. l c. F. HAMMANN 2,286,362

METHOD OF A'ND MACHINE FOR LASTING BOOTS ANDSHOES Filedsept. 9, 1940 11 sheets-sheet 9 INV ENTOR.

`un'e 16, 1942. c. F. HAMMANN 2,286,362

METHOD oF AND MACHINE FDR LASTING BooTs AND SHOES Filed Sept. 9, 1940 ll Sheets-Sheet lO 1N VENTOR. fr) Wa-m/mM/J N AA A A5, N ALA .2mm

June 16, 1942. 2,286,362

METHOD oF AND MAQHINE FOR LASTING BOOTS AND sHoEs c. F. HAMMANN 11 Sheets-sheet 11 Filed Sept. 9, 1940 INVENTOR.

Patented June 16, 1942 UNITED STATI-:s PATENT oFFllcE METHOD F AND MACHINE FOR LASTING BOOTS AND' SHOES Carl F. Hammann, Boston, Mass., assignor'to North American Holding Corporation, Syracuse, N. Y., a corporation of New York Application September 9, 1940, Serial No. 355,964

. 48 Claims. (Cl. 12-2) My invention relates to boot and shoe lasting machines of that class which is constructed with a pair of driven rolls between which the marginal portion or skirt of a shoe upper is gripped and by which it is fed laterally while said shoe upper and an innersole are in position upon a last. In operating a machine of this class the last with said shoe parts mounted thereon is held in proper position relatively to said rolls by an operative who directs and controls the lateral movement of the last so that said rolls not only traverse the skirt of the shoe upper but also pull or stretch the latter around the corner of the last and lay it down on to the innersole to which itis secured as the pulling-over operation progresses.

My invention provides an improved boot and shoe lasting machine of the class indicated which, in the preferred form of the invention,

' may be constructed and operate as set forth in the following description, the several novel features of the invention being separately pointed out and dened in the claims at the close of the description.

In the accompanying drawings:

Figure 1 is a front elevation, partly broken away and in section, of a boot and shoe lasting machine embodying this invention.

. Figure 2 is a front elevation of part of the loW` er portion of the machine shown in Fig. 1.

Figure 3 is a side elevation, partly broken away and in section, of the machine shown in Fig. 1.

Figure 4 is a detail relating to part of the mechanism shown in Fig; 3.

Figure 5 is a front elevation of thev head of the machine shown in Figs. 1A and 3, with the housing, hereinafter referred to, removed.

Figure 6 is a detail illustrating the construe'- tion of the twoclutch levers hereinafter described.

Figure 7 is a section on line I-l of Figs. 5 and 8.

Figure 8 is a topl plan View of the head shown i in Figs. 5 and 7.

Figure 9 is a section on line 9 9 of Fig. 7. Figure 10 is a section on line Ill--IU of Fig. 8.

Figure 11 is a partial section on line II-II of Fig. 10.

Figure 12 is `a'section on line I2-I2 of Fig. 9.

Figure 13 is a section on line I 3I3 of Fig. 9.

Figure 14 is a section on line I4-I4 of Fig. 9.

Figure l5 is a section approximately on line I5-I5 of Fig. 5.

Figure 16 is an enlarged elevation of one of the staples hereinafter referred to.

Figure 17 shows a length of wire such as is employed in producing the staple of Fig. 16.l

Figure 18 is a fragmentary sectional view, enlarged, illustrating the construction of the lower wire feeding and wire roughening roll herein-y after described. y

Figure 19 is a detail in plan, full size, showing the staple feeding slide and the magazine hereinafter described.

Figure 20 is a side elevation of the magazine for holding a file of staples fromwhich they are `1 denvered, one at a time, to the staple driving mechanism described later.

Figure 21 is a plan view of the magazine, but

with its top wall removed and partly in section. Figure 22 is an elevation of the rear end of the magazine shown in Fig. 20.

Figure 23 isa section on line 23--23 of Fig. 20.

Figure 24 is a section on line 24-24 of Fig. 20.

Figure 25 is an elevation of the front end of the magazine.

Figure 26 is a side elevation, enlarged, illus-` trating the construction of the pair of feed rolls v hereinafter described.

The illustrated embodiment of the invention comprises a column I0 (Figs. 1 and 2) provided at its lower end with a hollow pedestal I I and at the parts of a sectional sheet metal housing I6 by which most of said frame and other parts of the mechanism are inclosed.

A shelf I'I and drawer Ila are provided upon the exterior of the front of column Ill for the convenience of the workman, said drawer beingy slidably mounted within a compartment provided upon the under side of the shelf.

A pair of upper-gripping rolls I8 and I9 (Figs. 1, 2, 11 and 15) are supported in position at the front of the frame I4 of head I2 where they are accessible to the operator who stands in front f of the machine holding a last (Fig. 15) to which an innersole 2| and upper 22 have been Iapplied. The axes of these two rolls are preferably disposed in one vertical plane.

The rolls I8 and I9 are momentarily separated by depression of a foot lever 24 (Figs. 1 and 2) to permit entry of the flange or skirt 23 of the upper between said rolls after which rotation of the rolls feeds said flange or skirt laterally carrying the innersole and last with it.

As the rolls I8 and I9 traverse the skirt of the upper the side o-f the shoe is manually held against a guide roll rotatably mounted upon the frame I4 of the head I 2. while the upward pull of said rolls upon the skirt or ange 23 holds the innersole 23 snugly against the convex lower end of the roll I9 which therefore also serves as a shoe guiding abutment.

The upper-pulling action of the rolls Ill'anfcl- K beveled gears 35 with the upper end of a shaft I9 is occasioned by manually maintaining the shoe in a slightly laterally tilted position relal tively to the plane of the axes of the rolls so that the portion of the flange of the upper that is-.j. approaching the bite of said` rolls is somewhati urged upwardly toward and against roll I9 while the operator holds the shoe against guide roll 25. These actions of the feed rolls, Acombined with the lateral pressure exerted by the operator in holding the lshoe against the guide roll 25, stretches the upper around the corner of the last and lays a portion of the skirt or flange thereof down on to the innersole, as shown in Fig. l5, where it is secured either by cement or by fastener elements, or by both cement and fastener elements if desired.

The fastener elements employed may, as herein contemplated, consist of wire staples which are automatically fabricated and driven into the upper skirt and innersole as the pulling over operation progresses, and the Imechanism embody- `ing this feature of the invention includes a staple driver 26 (Figs. 5 and 15) disposed closely alongside of the feed rolls I8 and I9 and partly behind the roll I 8.

This driver 26 occupies a position between the feed rolls and a wiper element 21 (Figs. 5, 7 and 9) provided at its upper end with a laterally projecting trunnion 28 by which it is pivotally mounted on head frame I4.

As will presently be explained, control rnecha-v nism is provided through which the operator may at will adjust the machine so as'to cause the feed rolls I 8 and I9 to be continuously rotated in unison in the directions of the arrows in Fig.

' 15 while the staple making and driving mecha.

under either condition of adjustment and serves to wipe the skirt of the upper down on to the innersole as or just after it leaves the feed rolls.

At the rear thereof the head frame I4 is provided with an upstanding bracket extension I4a (Figs. 7, 8 and 10) made with bearings with-- in which is journaled a vertically disposed continuously driven prime power shaft 29 having a pinion 30 fixed on its lower end portion and a worm 3I fixed on its upper end.

. The worm 3l `continuously drives a worm gear 32 loosely mounted on a horizontal shaft 33, but adapted to be coupled thereto, as described later,

so that said shaft is, at times, rotated by and with said worm. Shaft 33 is journaled at its one end in a bearing provided at the top of bracket extension I4a and near its opposite end in a bearing provided at the top of an upstanding wall I4b`forming an integral part of head frame I4.

The staple making and driving mechanisms are actuated by this horizontal shaft 33'Which, at times, also serves to actuate the feed rolls I8 and I9 intermittently through the medium of a second horizontal shaft 34 (Figs. 7 and 11) connectfr". ,..a

ed with feed rou I9, and a third horizontal shaft 35 carrying the other feed roll I8. v

At its front end the shaft 34 is connected by 31 which extends obliquely downwardly from said 'gears to the other feed roll I9 which forms a rigid part thereof.

The forward end of the second horizontal shaft 34 is rotatably' supported by a bearing 38 provided upon a carriage 39 that is slidable horizontally, in ways provided upon the wall or upstanding extension I4b of the head frame I4, in a direction parallel with shaft 34, while the oblique shaft '31 is also journaled in bearings provided upon said carriage. The gears 36 are completely inclosed within a Vgrease-holding chamber 40 provided upon the carriage 39.

The lower, or third, horizontal shaft 35 is journaled within a bearing provided in the base` portion of the head frame I4 and is provided at its rear end with a bevel gear 4I in mesh with and driven by a bevel gear 42 fast on a second vertical shaft 43 whose upper portion is journaled in a bearing provided within the rear upstanding bracket extension I4a. f

At its upper end shaft 43 is provided with, a bevel gear 44 meshing with a bevel gear 45 having an elongate tubular hub journaled in a bearing 46 provided upon the front section of bracket extension I4a of the frame.

The tubular hub of gear 45 is made with a longitudinalslot 41 that is occupiedby a key 4B projecting radially from the second horizontal shaft 34 so that the latter may be moved axially within said hub, but must rotate with it. In other words, the rear end of shaft 34 is telescopically tted within and splined -to the tubular hub of gear 45. l

The hub of gear 45 includes, as a rigid part thereof, a collar 49 made with a circular radial ange 50 (Figs. 6 and 1l) which is confined within the hub of a clutch lever 5I that is pivotally supported by the hub of gear 45 and provided upon its interior with clutch elements 52 cooperating with the periphery of flange 5I! so that upward.- swinging movement of lever 5I acts through the clutch elements to turn gear 45 and shaft 34 with it, while movement of. the clutch lever in the opposite directionvis effected independently of gear45 and shaft 34. Thus the lever 5I may be regarded as of the over-running type since it is possible for shaft 34 to be rotated continuously in the direction of the arrow (Fig. 6) independently of the clutch lever, as presently to be described.

As shown in Figs. 5` and '7, the clutch lever has pivotally connected to it a pitman 53 Whose strap embraces a double eccentric 54 fast on the upper horizontal. shaft 33. Thus, when lshaft 33 is rotated it will act through eccentric 54 and pitman 53 to vibrate lever 5I and the latter will act through its clutch mechanism andthe hub of gear 45 to rotate the second horizontal shaft 34 step-by-step in the direction indicated by the arrow in Fig. 7. As will be clear, this intermittent movement of shaft 34 will be transmitted through gears 36 (Fig. 11) to shaft `31 carrying feed roll I9 and through

gears

45 and 44, shaft 43 and gears 42 and 4I, lto shaft 35 carrying feed roll I8. i

The worm gear 32 at the rear end of shaft 33 is continuously driven by the Worm 3I on the prime power shaft 29 (Figs. '7, 8 and 10) and one end of its hub is made with crown teeth 55 to cooperate with a bolt 55 which is yieldin gly urged toward said hub by a spring-51, said spring and bolt being parts of a coupling clutch that is indicated generally at 58. This coupling clutch comprises inner'and outer body members,

as shown in Fig. 7, which are rigidly fastened together and to shaft 33, the double eccentric 54 being an integral part of the outer body member of said coupling clutch 58. y Co-operatively disposed with respect to coupling clutch 58 is a bolt-operating member 59' herein shown as in the form of a lever pivotally connected intermediate its ends as at 68 to one side of the bracket I4a. One arm of member 59 occupies an annular groove 6I provided upon the exterior ofthe body of coupling clutch 58 across which groove the bolt 56 extends. 'I'he extremity of this arm of member 59 is made wedge-shaped so as to provide a cam surface 6I (Fig. 8) against which a shoulder 62 on bolt 56 rides when said arm is swung downwardly into the path of the bolt. This retracts bolt 56 against the pressure. of its spring' 51 (Fig. '7) thereby disconnecting the continuously rotating worm gear`32 from shaft 33 and stopping thev latter.

The other arm of member-59 is connected by an endwise extensible and contractible link 63- Rock-shaft 68 is provided with a third arm` 1I provided at its free end with a truck or roll which, at all times, is held against a cam 12 projecting upwardly from a slide-bar 13 movably supported by a bearing 14 fixed to one of the side walls of column I0.

Slide-bar 'I3 extends through bearing 14 to the exterior of column I where it is provided with a leg pad 15 of rubber or the like mounted within ahpad-holder 16 that is made upon its rear side with a threaded stem 11. This stem extends through a slot 18 (Fig. 2) provided in an arm 13b projecting radially from slide-bar 13. As will be clear, holder 16 may be adjusted lengthwise of slot 18 to suit the convenience of the operator and fixed in its adjusted position by two nuts mounted on stem 11.

A coiled spring 80 mounted upon the inner end portion of slide-bar 13 bears at its one end against the inner side of one of the walls of lcolumn Iand at its opposite-end against a collar 13a on slide-bar 13, and normally this spring yieldingly holds the slide-bar at the limit of its outward movement. as shown in Fig. 4.

In the drawings, however, the slide-bar is shown at the limit of its inward movement where it is held, against the pressure of spring 80, by one leg of the operator as indicated in Fig. 3 of the drawings. When the slide-bar 13 occupies this position, the arm 1I is supported by the highest elevation of cam 12; link 61 is at the limit of itsv downward movement, and the inner camarm of bolt-operating member 59 of head I2 is held out of engagement with clutch bolt 56 (Figs. 7 'and 8). Therefore, shaft 33 is coupled to the continuously rotating .worm gear 32 and

shafts

34 and 35 are-being intermittently actuated .to feed the work step-by-step past the feed rolls I8 and I9. While operating under these conditions the staple making and driving devices are in action also.

As shown in Figs. 9 and 10 the rock-shaft 65 carrying the arms 64 'and 66 is journaled in bearings provided upon a box-like bracket 8| fixed in position against the bottom side of the head frame I4 and within said bracket the shaft 65 has xed on it a' forked arm or yoke 82 which embraces a clutch member 83 splined on the shaft 43 referred tofabove. Loosely mounted within an annular groove (not shown) provided upon the exterior of clutch member 83 is a collar 84 to the oppositesides of which the tines of yoke 82 are pivotally connected.

lIt will now be clear that the yoke 82, rockshaft 65 and the two

arms

64 and 66 provide a rigid shipper unit that is manually operated and controlled through the medium of the leg-operated slide-bar 13 and that this unit serves the double function of operating clutch member 83 and bolt-'retracting member 59.

The link 63 (Fig. 10) comprises a rod or stem 85 whose upper end is pivotally connected to the outwardly extending arm of bolt-operating member 59 and whose lower end. is provided with a head 86 disposed within a sleeve 81 telescopically fitted on the lower end of stem 85. The lower end of this sleeve is closed and pivotally connected to arm 64 while its upper end is occupied by a tubular plug 88 having threaded engagement with the interior'of the sleeve. Normally the head 86 is yieldingly held against the inner end of plug 88 by a spring 89 confined within the sleeve.

The purpose of this construction will presently appear, -but it may be noted here that when the shipper unit 64-66-82 occupies the position shown in Fig. 10 clutch member 83 occupies an inoperative position at the time of its upward movement on shaft 43, the cam arm of member 59 is above the path of bolt 56, and shaft 33 is .being driven in the direction of the arrow.

It will also be noted that if the arms 64-66 are swung upwardly far enough to lower the cam arm of member 59 into its operative position against the bottom of the groove 6I Fig. 8) where it retractsbolt 56, rotation of shaft 33 will be stopped and clutch member 83 (Fig. 10) will occupy an idle intermediate position.

Also, continuation of upward movement of arm 64 beyond such intermediate position will compress spring 89 and at the same time cause yoke 82 to shift clutch member 83 downwardly to the limit of its movement in that direction where its teeth are meshed with the teeth of a comple,- mentary clutch member 98 herein shown. as the hub ofl a gear-9| that is continuously driven by the gear 30 that is fast on the prime power shaft 23. The gear 9| loosely surrounds the 4shaft 43 and its hub is in part journaled in a bearing -provided in the bottom wall of the boxlike -bracket 8 l As shown in Fig. 4 the cam 12 on slide-bar 13 is formed with two

elevations

92 and 93 of diierent heights between which there is provided a depression or socket 94.

When slide-bar 13 is held at the limit of its outward movement by spring as in Fig. 4 the arm 1I .is supported by the lower elevation 93 and acts through the connections described to hold clutch member 83 in an idle intermediate position with the cam arm of member 59 seated within groove 6I so that

shafts

33, 34, 35, 31 and, 43 are at rest; when slide-bar 13 is adjusted in'4V wardly to a position where arm 1I (Figs. 3 and 4) is supported within socketA or depression 94,

. said ar-m acts through the connections described frame I4 by a screw |08 engaging the end thereoi v and a clamp plate |09 engaging the side of the

shafts

34, 35, 31 and 43 rotating continuously,

and when slide-bar 13 is adjusted inwardly to the limit of its movement in that direction the arm 1I is supported by the highest elevation 92 and acts through the connections described to maintain clutch 83 and bolt-operating member 59 in the positions shown in Fig. 10.

Thus, by means -of the single control member `13 and associated parts the operator may at will cause the

shafts

34, 35, 31 and 43 to be driven intermittently from shaft 33 by holding said control member at the limit of its inward movement, as shown in Fig. 3; by permitting spring 80 to hold said control member at the limit of its outward movement as shown in Fig. 4, shafts 33, 3'4, 35, 31 and 43 will be maintained at rest, andby holding the control member 13 in an intermediate position said

shafts

34, 35, 31 and 43 will be driven continuously while shaft 33 remains at rest.

While shaft 34 is being driven intermittently by shaft 33 acting through pitman 53 and the one-way clutch lever I it is operated by eachl up-stroke of said lever and while it is being driven continuously in the same direction by gear 9| (Fig. 10) the shaft 33, pitman 53 and clutch lever 5| are at rest and said shaft 34,

together with the elongate hub of gear within which it is splined (Fig. l1) are free to over-run or rotate within the clutch hub of said lever.

A supply of wire W from which the staples, hereinabove referred to, are produced is held upon a spool 95 (Figs. 5 and 8) rotatably mounted upon a spindle 96 projecting forwardly from an upstanding bracket 91 fixed in position upon the top of the head'frame I4.

Remov'ably mounted upon, and interlocked with, the front end of spindle 96 is a collar 98 against which spool 95 is yieldingly urged by a same, said clamp plate being held in bladeclamping position by a screw as shown in Fig. 5. The groove |06 'and blade |01 provide a wireconfining and wire-directing passageway disposed at right angles to the* anvil n I0`4a through which the wire is intermittently fed by feed rolls I0| and |02.

At its inner end knife blade |01 is made with an oblique cutting edge ||0 with which a complementary oblique cutting edge III (Fig. 14) provided at the lower'end of die |05 co-acts to shear the wire diagonally so that the vopposite endsof each staple blank produced at the anvil |04a are pointed as shown in Fig. 1'1. The oblique cutting edge III at the lower end of die |05 is formed by beveling one side of the die as shown at ||3 (Fig. 14).

The die |05 is rigidly clamped within a recess I I4 (Figs. 14 and l5),provided at' one end of a cross-head II5 by means of a screw II 6 engaging the-upper endthereof and av screw I I1 engaging the outer face of said die, the latter being formed with a longitudinal slot II8 that isoccupied by the shank of screw I|1 so as to provide for accurate setting of the die with respect to anvil I04a when cross-head ||5 occupies its lowyermost position.

The upper end of the staple driver 26, hereinabove referred to, is rigidly clamped (as shown)A connecting rod |2| by which the cross-head is connected with the wrist pin |22 of a crank-arm |23. The hub of this crank-arm is loosely mounted upon the forward end of the upper horizontal shaft 33 which is continuously driven coiled 'spring 99 that is mounted on spindle 96 between said spool and bracket 91. Thus spring braking action on the spool which prevents overrunning of the latter.

The wire W extends from spool 95 through a guide |00 fixed to frame I4 by which it is directed between a pair of intermittently operated feed rolls IOI and |02. From the feed rolls the wire passes through a second guide |03 by which its advance end portion is directed into position immediately above an anvil |04a (Figs. 14, 15 and 19) where it occupies a position between said anvil and a vertically movable bifurcated die |05, at a moment when said die occupies a position above that shown in Fig. 14 out ofthe path of the wire.

The anvilA I04a is a vertically disposed n provided upon the top side of a hardened steel block |04 xed in position within a recess provided in when the feed rolls I8 and I9 are being intermittently driven but which is at rest while said feed rolls are being continuously driven.

A circumferential slot |24 (Figs. '1, 8 and 14) is provided in the hub of crank-arm |23 and this slot is occupied by a radial lug or arm |25 that is a rigid part of shaft 33. During one-half of each revolution of shaft 33, while the latter is in use, the lug |25 traverses slot |24 in the direction of the arrow in Fig. 14 until said lug engages the end wall |26 of slot |24. Thereafter, during the last half revolution of said shaft the lug or arm |25 swings crank-arm |23 upwardly until wristpin I 22 passes dead-center position above shaft 33 whereupon the crank-arm is thrown downwardly and returned to its normal position by'a pair of coiled springs I 21 each of which is mounted upon one of the guide-bars I I9.

During the upward swing of crank-arm |23 the springs |21 are compressed between the head frame and cross-head |I5 so that as the wrist pin I 22 passes dead-center position above shaft 33, the cross-head is thrown downwardly by the springs independently of lug or arm I2 with sufficient force to causedie |05 tocut a staple blank (Fig. 17) from the advance end ofthe wire W and form it into afstaple S (Fig. 1'4) on anvil I04a. Simultaneously, the driver 26 (Fig. 15) is caused to drive a previously made staple into the shoe upper and innersole.

These staple making and driving operations occur simultaneously during each period of rest of the feed rolls I0 and I9 and between step movements of the wire W effected automatically as presently to be described. That is to say. during each revolution of shaft 33 the wire W is automatically advanced a distance equal to the length of a staple and at about the same time the work is advanced by the feed rolls I8 and I9 a predetermined distance equal to the desireddistance between the staples that are driven into the work, after which the cross-head is operated to simultaneously form one staple on the anvil |04a and drive another previously made staple into the work. Y

Fixedly mounted upon the rear end of the cross-head |5 is a vertically disposed cam |28 (Figs. '1 and 15) co-operating with a bell-crank lever |29 fulcrumed at |30 upon the upstanding wall 4b of the head frame I4. The shorter arm of this bell-crank carries a truck or roll I3I which bears against the cam |28 while the other longer arm of said bell-crank extends downwardly into an aperture |32 formed in a feed slide |33 movable endwise within a groove or channel |34 formed upon the top side of the base portion of the head frame I4. At its one end the slide |33 is forked to provide a pair of longitudinally disposed tines |35 disposed upon opposite sides of anvil |04a as shown in Fig. 19.

When the cross-head ||5 is moved upwardly, as above described, there is a staple S occupying a position upon the anvil |04a which was produced during the preceding revolution of shaft 33 and as cross-head 5 moves upwardly the cam |28 permits the spring |31 to move the feed slide |33 toward the right in Fig. 15 so that its tines |35 act to/ shoveV the previously formed staple S olf from anvil |04a and on to a rail |40 forming part of a magazine which is illustrated in detail in Figures 19' to 25, inclusive, said rail 40 abutting one end of anvil |04a and being alined therewith so that it, in effect, constitutes a staple-holding continuation thereof.

Before the cross-head `||5 is driven down-l wardly by the springs |21 the wire W is fed Vforwardly a distance equal to the desired length of the staple blank and after this feeding movement of the wire the cross-head ||5 is driven downwardly by its springs |21 and the die |05 rst severs the staple blank from the advance end of the wire W and thereafter folds the opposite ends thereof downwardly against the opposite sides of the anvil |04a. 1

When the advance end of the wire is fed for-v wardly as described, it comes into position between the top of anvil |04a and a shoe |4| that is pivotally mounted at |42 upon the plate |39. Therefore, when cross-head ||5 is driven downwardly by springs |21, the opposite ends of the blank are rst folded downwardly against the opposite sides of the anvil and thereafter the die |05 drives the shoe |4| downwardly forcibly against the top intermediate portion of the staple. When a staple is formed over the anvil 'there is a tendency for the said intermediateportion to arch across the top of the anvil and it win therefore be clear Ythat when the shoe m is driven down on to said top, the latter is straightened so that it is approximately at right angles with respect to the legs of the staple.

A spring |43, bearing against the top of shoe |4| at the rear' of the pivot |42, serves to elevate the staple-engagingend of said shoe so as to position it above the path of the incoming wire when cross-head ||5, with the die |05. is moved upwardly as described. A stop screw |44 adjustably ymounted in plate |39 limits the upward Ithe slot between the tines at the lower end of the die,

'I'he uppermost wire-feeding roll |0v| is fixed in position upon the forward end of a horizontally disposed spindle |45 rotatably mounted eccentrically within a rocker sleeve |46 journaled within a bearing provided on the head frame I4. The axes of spindle |45 and rocker sleeve |46 are disposed in a horizontal plane at right angles with respect to a vertical plane passing through the axis of spindle |45 and the axis of lowermost feed roll |02.

Rigidly clamped in position upon the rocker sleeve |46 by means of a screw |41 (Figs. 9 and 13) is an upwardly projecting lever arm A|48 to which is connected one end of a spring |49 which acts upon the lever arm |48 in a direction to yieldingly urge spindle |45 and the uppermost feed roll |0| toward the axis of the .lower feed roll |02.so that the wire W is forcibly gripped by the two feed rolls. An adjustable stop screw |50, carried by the split hub of lever arm |48 engages the top ofthe base portion of head frame I4 to prevent contact between the two feed rolls when there is no wire between them.

The lowermost wire-feeding roll |02 is fixed in position upon the forward end of a horizontally vdisposed spindle |5| (Figs. 5, 10 and 12) which is disposed directly below, and parallel with, the spindle |45 of the uppermost feed roll.

The lower'spindle |5| extends rearwardly beyond the upper spindle |45 and has mounted thereon the hub of a clutch lever |52 which may be constructed the same as the clutch lever shown in Fig. 6. l Thisclutch lever |52 is vibrated by the double eccentric 54 (Fig. '1) acting through a pitman' |53 (Figs. 5 and 10) whose' upper end is provided with a strap encircling said eccentric and whose lower end ispivotally and adjustably A'connected with the outer portion of the clutch lever |52. When this clutch lever is vibrated by the eccentric, it is effective upon its upward stroke only to turn the lower spindle |5| a .predetermined distance, and this distance may be varied or regulated by adjustment of a screw |54 (Fig. 12) extending' through and having threaded engagement with av block |55 that is mounted within a radial slot |56 formed in the arm of clutch lever |52.

The hub of the lowermost gear |51 (Figs. 9

and 12) is embraced by a pair of brake arms |59 which are pivotally anchored at |60 to the base portion of head frame |4. A screw |6| extends loosely through an aperture in the uppermost arm |59 and its lower end portion occupies a threaded aperture provided in the lowermost arm |59. A coiled spring |62 disposed between the uppermost brake arm and the head of screw |6| causes both brake arms to yieldingly grip the hub of the lowermost gear thereby to hold the wire-feeding rolls and |02 against rotative displacement between movements thereof.

The uppermost feed roll |0| (Fig. 9) is made upon its periphery with a shallow circumferential groove |63 that is occupied by the portion of the wirethat is between the two feed rolls. 'I'his groove serves to'hold the wirel against lateral side as indicated by dotted lines in Fig.- 17. When said blank is formed into a staple as Shown in Fig. 16, the scored side of the wire is upon the interior of the staple and the projecting burrs thereof serve to anchor the staples securely within the material into which it is driven.

When the feed slide |33 (Fig. 15) is actuated by spring |31 to transfer a nished staple S from anvil |04a to the rail |40 of the staple-holding magazine, the said staple is slid forward by the feed slide into a position between the rail |40 and a spring-pressed shoe or detent |61 (Figs. 19, 21l and 23). This shoe yieldingly clamps the staple against said rail and holds it against backward movement with the feed slide when cam |28 on the cross-head acts through lever |29 (Fig. 15) to retract the feed slide during the downward stroke of the cross-head.

As shown in Figs. 2l and 23, the s'hoe |61 is an angular block of metal slidably mounted within a recess formed in the body |68 of the magazine and yieldingly urged toward rail |40 by a pair of coiled springs |69.

The body |68 of the magazine is of trough-like form and the rail |40 is a vertically disposed rib provided at the bottom of the trough |12. A cap plate |10 fastened in position upon the top of body |68 closes all of the top of thev trough, except for a narrow slot |11 (Figs. 19 and 24 through which the contents'y of the magazine may be observed by the operator.V

At its forward end the magazine body 68 is made with a head |13 (Figs. 15 and 20) whose lower end is coincident with a horizontal plane that is tangent to the bottom of feed roll i8 so that said lower end is immediately adjacent to, and practically in contact with, the upper 22 of the shoe.

Upon its front side the head |13 is formed with a vertical T-shaped channel |14 (Figs. 19 and 20) within which the driver 26 is mounted for endwise reciprocatory movement therein, said driver also being T-.shaped cross-section to' fit said channel as shown in Fig. 21. When the driver 26 occupies its uppermost position the trough |12 of the magazine body communicates rail |40 is immediately adjacent to, and in register with, the same.

When the shaft 33 is first started with the staple magazine empty the staple-making mechanism functions to produce staples and-deliver the same into the magazine until the file of staples built up on rail |40 is of such length that thereafter each feeding stroke 'of slide |33 moves the entire file of staples endwise and forwardly on rail |40 until the foremost staple of vsaid file is brought to bear against stop shoulders |15 (Fig. 19) within the vertical channel |14 while the driver 26 is elevated so that when the driver descends said foremost staple is driven -downwardly through the channel |14 and into the shoe. i

The tread of the last 20 (Fig. 15) is provided with a sheet metal plate |16 by which the ex- 4 tremties of the staple legs are upset or clinched,

Also, the legs of the staples may be produced slightly divergent, as shown in Fig. 16, so that when forced into channel |14 by the feed slide each will frictionally grip the opposite sides thereof.

The wiper element 21, hereinabove referred to, is pivotally supported immediately alongside 'of the magazine head |13 as shown in Figs. 5 and 9. A link |16 (Figs. 7, 10 and 11) connects this wiper element with a slide |11 mounted in ways provided upon the bottom side of head frame 4 adjacent to the .vertical shaft 43 so that it is movable toward and from the latter. Slide |11 carries a roll or truck |18 which is yieldingly held by a spring |80 against a star cam |19 fast on` shaft 43. As indicated by dotted lines in Fig. 7, this spring bears at its one end against a shoulder or frame |4 and' at its opposite end against a lug 18| (Fig. 12) provided upon the top side of slide |11. slide |11 and link |16 to continually vibrate wiper 21 while shaft 43 is intermittently rotated step-by-step by shaft 33 and also while shaft 43 is continuously rotated by gear 9|.

Wiper element 21 forces or irons the pulledover portion of the skirt of the upper down on to the innersole progressively as it leavesA the feedA rolls I8 and |9 and is especially designed for use while the feed rolls are continuously driven and cemented shoe parts are being operated upon.

As herein shown, the prime power shaft 29 may be continuously driven by an electric motor |82 (Figs. 1 and 2) mounted within the column |0. As shown, the armature shaft of motor |82 is provided with a stepped pulley |83 connected by a belt |84 with a stepped pulley |85 fast on a coun- `cuit of motor 82 is controlled, as usual, by a manually operated switch (not shown) mounted upon the exterior of column |0.

The slide carrier or slide`39 (Figs. 9 and l1) A which carries the front feed roll and shafts 31 with the vertical channel |14 and one end of 75 and 34, is slidably mounted within a recess provided upon one side of the upstanding wall |41) of the head frame and is retained within said recess by a plate |88 fastened by screws to the frame, said slide being movable in its ways in a direction lengthwise of

shafts

As shown in Figs. 1 and 2, the link |98 extends downwardly from arm I 91, through column I and into pedestal whe're its lower end is piv- Y so constructing and arranging the two feed rolls otally connected to an arm |99 fast on a rockshaft 200 journaled at its opposite ends in bearings on pedestal 'I'his rock-shaft carries a pinion 20| meshingwith agear 202 fast on a second rock-shaft 203 also journaled at its opposite ends in bearings provided on pedestal Treadle 24 is fast on rock-shaft 203 and gear 202 is made larger than pinion l20| so that a relatively small downward movement of treadle 24 will act through gear 202 and pinion 20| to effect a greater downward movement of link |98. It will be clear that when treadle 24 is pressed downwardly it acts through the connections described to swing arm '|96 toward the right in Fig. 1l and said arm will shift slide 39 forwardly thereby separating the feed rolls I8 and |9 to permit the shoe upper to be inserted, or withdrawn from, between said feed rolls.

It will be clear that the purpose of the slot 41 and key 48 (Fig. ll) is to permit of endwise movement of shaft 34 relatively to the tubular hub of gear 45 when slide 39 is thus adjusted on the frame, so as to maintain driving connection between said shaft and hub at all times.

The lower end of the pitman 53 (Figs. 5 and 6) is pivotally connected to a block 204 slidably mounted within a. radial slot 205 formed in the arm of clutch lever 5|, said block being made with a threaded hole extending therethrough which is occupied by a screw 206 carried by arm 5|. This screw normally holds block 204 in fixed position Within slot 205 but by rotation thereof said block may be adjusted radially to vary the effective length of arm 5|. It will thus vbe clear that by varying the effective length of arm 5| the length of the step movements imparted to the work, and therefore the distance between the driven staples, may be varied as desired within limits determined by the lengths of slot 205 and of screw 206.

In the preferred embodiment of this invention, and as shown in Fig. 26, the conicity of feed rolls I8 and I9, and the relative disposition of their axes, is such that the lower ends of said rolls are closer together than the upper ends thereof. That is to say, the opposed upper-engaging surfaces atA the bite of said rolls diverge slightly from their lower larger ends toward their smaller upper ends so that the upper-gripping action of the rolls is greatest at their larger ends and therefore it is possible for slippage to occur between the top portion of the upper flange or skirt and the rolls as the latter traverse said skirt or flange.

From the above description it will be obthat the portion of the skirt of the upper which -ls gripped'between vsaid rolls, is maintained by the latter in an oblique. outwardly inclined position so that it is disposed at an obtuse angle with respect tothe direction of the upper-engaging stroke of the wiper element 21 so that the latter delivers a glancing blow against the upper alongside of said gripped portion thus avoiding injury to the same. This is a distinct advantage derived from a pair of feed rolls constructed and operating substantially as described. Another advantage is that the pull ofthe rolls upon the gripped portion of the skirt of the upper as said rolls traverse the latter, is also effected in an outward oblique direction which tends to pull the upper snugly and forcibly around the corner of the last in a direction toward the middle of the latter.

` What I claim is:

1. A machine for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, upper lasting mechanism comprising a pairl of rotatable upper-gripping members for engaging the skirt of the upper, and means for rotating said members intermittently to cause the same to traverse the skirt of the upper step-by-step while said last and shoe parts are supported and guided past said members so as to cause the latter to progressively pull the same inwardly toward the middle of the innersole.

2. A machine for lasting a yshoe upper while said upper and an innersole are assembled upon a last, said machine including, in'combination, a pair of feed rolls for gripping the skirt 0f the upper, and means for rotating said feed rolls intermittently to cause the same to traverse the skirt of the upper step-by-step While said last and shoe parts are supported and guided Apast said rolls so as to cause the' latter to progressively pull the same inwardly toward the middle of the innersole.

3. A lasting machine constructed in accordance with claim 2 and wherein the axes of said feed rolls are disposed at an angle relatively to each other.

4. A machine for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination', a pair of feed rolls for gripping the skirt of the upper; means for rotating said feed rolls intermittently to cause the same to traverse the skirt of the upper step-by-step while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull the same inwardly toward the middle of the innersole, and means for guiding said last and shoe parts in their movement past said feed rolls.

5. A lasting machine constructed in accordance with claim 4 and wherein the axes of said feed rolls are disposed at an angle relatively to each other.

6. A machine for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the marginal portion of the skirt of the upper to pull the same inwardly toward the middle of the innersole; means for rotating said feed rolls intermittently to cause the same to traverse the skirt of the upper step-by-step while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull the same which. said last and shoe partsare guided in their movement past said feed rolls, and means for Y driving fasteners one at a time into said upper vand innersole during periods of rest of said rolls.

7. Av lasting machine constructed in accordance with claim 6 and wherein the axes of said feed rolls are disposed at an angle relatively to each other. Y

8. A machine for lasting a` shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the skirt of the upper; means for rotating said rolls intermittently to cause the same to traverse the skirt of the upper step-by-step while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull the same inwardly toward the middle of the innersole; a xed frame by which said feed rolls are supported, and a work-rest on said frameicol-acting with one of said rolls to guide said lastand shoe parts in their movement past said feed rolls.

9. A lasting machine constructed'in accordance with claim 8 and wherein the axes of said feed rolls are disposed at an angle relatively to each other. i

10. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, 'a pair of conical feed rolls for gripping the skirt of the upper, and means for rotating said rolls to cause the same to traverse the skirt .of the upper while said last and shoe parts are supportedand guided past said rolls so as to cause the latter to progressively pull the same obliquely inwardly toward the middle of the innersole.

ll. A machine ol the class described constructed in accordance with claim 10 and Wherein the opposed portions of the peripheries of said rolls at the bite between the latter diverge toward the smaller ends of said rolls so that the latter grip the upper with greater force at their larger ends than at their smaller ends.

12. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine-including, in combination, a pair of conical feed rolls for gripping the skirt of the upper, one of said feed rolls being made at its larger end with a convex innersole-engaging abutment surface, and means for rotating said rolls to cause the same to traverse the skirt of the upper and progressively pull the same obliquely toward the middle of the innersole.

13. A machine of the class described for lasting a shoe u'pper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of conical feed rolls for gripping the skirt of the upper; two shafts each of which supports one of said rolls, the axes of said shafts being relatively disposed at an acute angle, and means for rotating said shafts and rolls to cause the latter to traverse the skirt of the upper and progressively pull the same obliquelytoward the middle of the innersole.

14. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the marginal portion of the skirt of the upper; means `for-rotating said feed rolls to cause the same to traverse the skirt of the upper while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively 'pullthe Ysame obliquely inwardly toward the middle of the innersole; a frame providing a stationary support for one of said rolls'; a carrier movably mounted on said frame and by which the other roll is supported so that it is movable toward'and from said first-mentioned roll when said carrier is adjusted on said frame; means operableto yieldingly urge said carrier in adirection to cause said rolls to grip the skirt of the upper; a wiper element, and means for operating said wiper element to cause the same to press the inpulled portion of the skirt down on to the innersole'.

15. A machine of the lclassdescribed for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the marginal portion of the skirt of the upper, said rolls having their axes disposed at an angle relatively to each other; means forrotating said feed rolls to cause the same to traverse the skirt of the upper whilel said last and shoe lparts are supported and guided past said rolls so as to cause the latter to progressively pull the same obliquely inwardly toward the middle of the innersole; a frame providing a stationary support for one ofsaid rolls; a carrier movably mounted on saidframe and by which the `other roll is supported so that it is movable towardand from said mst-mentioned roll when said carrier and means for guiding said last and shoe is adjusted on said frame, and means operable to yieldingly urge said carrier in a direction to cause said rolls to grip the skirt of the upper.

16. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the skirt of the upper; means for rotating said feed rolls to cause the same to traverse the skirt of the upper circumambiently While said last' and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull the same obliquely inwardly toward the middle of the innersole; a frame providing a stationary support for one of said rolls; a carrier movably mounted on said frame and by which the other roll is supported so that it is movable toward and from said first-mentioned roll when said carrier is adjusted on said frame; means operable to yieldingly urge said carrier in a direction to cause said rolls to grip the skirt of the upper; manually operable mechanism for adjusting said carrier on said frame; a wiper element, and means for operating said wiper element to cause the same to press the inpulled portion of the skirt down on to the innersole.

17. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine including, in combinations a pair of feed rolls for gripping the marginal portion of the skirt of the upper; means for rotating said feed. rolls to cause the same to traverse the skirt of the upper circumambiently while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull said marginal portion obliquely toward the middle of said innersole thereby to lay an adjacent portion of said skirt on to the outer face of the innersole, parts in their movement past said feed rolls.

18. A machine of the class described for lasting a shoe upper while said upper and an innersole are assembled upon a last, said machine includmiddle of the latter thereby to lay an adjacent portion of said skirt on to the outer face of the innersole; means for guiding said last and shoe parts in their movement past said feed rolls, and means for automatically driving ay fastener into said skirt and innersole adjacent to said feed rolls during each period of rest of the latter.

19. A machine for lasting a shoe upper While said upper and an innersole are assembled upon a last, said machine including, in combination, a pair of feed rolls for gripping the marginal portion of the skirt of the upper; means for rotating said feed rolls intermittently to cause the same to traverse the skirt of the upper circumambiently step-by-step while said last and shoe parts are supported and guided past said rolls so as to cause the latter to progressively pull said marginal portion obliquely inwardly relatively to said innersole toward the middle of the latter thereby to lay an adjacent portion of said skirt on to the outer face of the innersole; means for guid- -ing said last and shoe parts in their movement past said feed rolls, and means for automatically driving a staple into said skirt and innersole adjacent to said feed rolls during each period of rest of the latter.

20. A machine for lasting a shoe upper while said upper and an innersole are assembled upon y a last, said machine including, in combination, a

pair of feed rolls for gripping the marginal portion of the skirt of the upper; means for rotating said feed rolls intermittently to cause the same to traverse the skirt of the upper ciroumambiently step-by-step while said last and shoe parts are supported and guided past said rolls so as t cause the latter to progressively pull said marginal portion obliquely inwardly relatively to said innersole toward the middle of the latter thereby to lay an adjacent portion of said skirt on to the outer face of the innersole; means for guiding said last and shoe parts in their movement past said feed rolls, and means for automatically fabricating a staple during each period of rest of said roll and simultaneously driving a previously fabricated staple into said upper and innersole.

21. In a lasting machine of the class described, the combination with a pair of intermittently ro tated upper-gripping feed rolls, of a frame by which saidrolls are supported; a cross-head mounted on said' frame for reciprocatory movement; a fastener-driving element carried by said cross-head; a channel on said frame within which said driving element is mounted for reciprocatory movement with said cross-head; a shaft that is continuously rotated in timed relation with respect to the intermittent movements of said feed rolls; a rotatably supported crankarm provided with a Wrist pin; `aconnecting rod connecting said wrist pin with said cross-head; a spring yieldingly holding said cross-head normally at the limit of lits movement in one direction with said driving element at the limit of its driving stroke means carried by and rotating with said shaft operable during each revolution of the latter to swing said crank arm from a dead center position at one side of its axis of rotation to a position just beyond dead center position at the opposite side of said axis to stress said spring and then release said arm thereby to permit said spring to effect a fastener-driving stroke of said cross-head independently of said shaft, and means for feeding fasteners one at a time into said channel in timed relation with respect to the reciprocatory 'movements of said driving element so that each fastener is driven into the work by said driving element when the cross-head is actuated by said spring and while said feed rolls are at rest.

22. In a lasting machine of the class described the combination with a pair of intermittently rotated upper-gripping feed rolls, of a frame by n which said rolls are supported; a cross-head mounted on said frame for reciprocatory movevment; means for reciprocating said cross-head in timed relation with the movements o f said feed rolls; a fastener driving element carried by said cross-head; a channel on said frame within which said driving element is mounted for reciprocatory movement' with said cross-head; an*V anvil fixedly supported on said frame; a wirecutting blade fixed in position on said frameadjacent to said anvil; a die mounted on said crosshead and cooperating with said blade and anvil; a movably supported shoeoccupying a position between said die and said anvil; means for intermittently feeding Wire into position between said shoe and said anvil so that when said cross-head is moved on one direction a staple blank is severed from said wire and formed into a staple on said anvil, said die acting through said shoe to straighten the top` portion of the staple, and

means for automatically feeding said staple to ward said channel during the retracting movement of said driving element.

23. In a lasting machine of the class described the combination of claim 22 wherein a magazine is provided on saidv frame between said anvil and said channel and into which the staples formed on said'anvil are delivered one at a time by said staple-feeding means so as to maintain Within i Within said magazine a file of staples ywhich is moved endwise-by each Istaple as the latter is transferred from the anvil to oneend of thev magazine by said staple-feeding meansy thereby to move into said channel the endmost staple at the opposite end of said magazine, and a springpressed detentvadj'acent to the entrance end of the'magazine for engaging each staple fed into the latter to hold it against movement toward said anvil.

25. In a lasting machine of the class described, the combination of claim 22 and wherein said staple feeding means includes a reciprocatory staple-feeding member movably mounted on said frame; a lever pivotally mounted on said frame for moving said member in one direction; a

spring for moving said member in the opposite f direction, and a cam on said cross-head for operating said lever.

26. In a lasting machine of the class described,