US692844A

US692844A - Last-trimming machine.

Info

Publication number: US692844A
Application number: US3358100A
Authority: US
Inventors: Bernard Gallagher
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-10-19
Filing date: 1900-10-19
Publication date: 1902-02-11
Anticipated expiration: 1919-02-11

Description

No. 692,844. Patented l-eh. ll, I902.

B. GALLAGHER.

LAST TBIMMING MACHINE.

- (Application filed Oct. 19, 1900.) (No Model.)

4 shank-Shae! l.

WITNEEIEES INVENTEIFKI ms' ucmms PEYERS ab. PHmLfl'na. wAsnmorou. o. c.

No. 692,844; 4 Patented Fab. n, I902.

- a GALLAGHER.-

LAST TRIMMING MACHINE.

(Application filed Oct. 19, 1900.)

4 Sheets-Sheet 2.

(No Model.)

IZNVENTEIFK" WITNEEEEE TH: nonms IETKRS (10., Fnof buffla. WASHINGTON, n. c.

- B. GALLAGHER.

I LAST TRIMMINS lAGHlNE.

(Application fllad Oct. 18, 1900.)

I Patented Feb. ll I902.

I 4 Shee'is.Sh-aet 3.

WITNESSES BERNARD GALLAGHER, OF LYNN, MASSACHUSETTS.

LAST-TRIMIVHNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 692,844, dated February 1 1, 1 902. Application filed October 19,1900. Serial No. 33,581. (No model.)

To all whom it may concern:

Be it known that I, BERNARD GALLAGHEILH. citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Last-Trimming Machines;

and I do hereby declare thefollowing to be a full, clear, and exact description oftthe invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

This invention relates to last-trimming ma,- chines.

Boot and shoe lasts are now generally manufactured by means of automatic last-turning machines. Such machines, however, do not complete the formation of the last, but leave projections or stubs at the heel and toe portions,which must besubsequen tl ytrim med ol'I".

The object of my invention is to provide a machine for performing this operation, and

more particularly to provide a machine for trimming off the projection at the heel, whereby the heels of the lasts will be trimmed off accurately and rapidly andwithout any attention on the part of the operator beyond the placing of the lasts in position in the machine and the removal of the trimmed lasts.

WVith this object in view my invention con-- automatically to relatively actuate the jack and cutter to transfer the point of contact of the cutter back and forth across the end of the last supported on the jack and to change the relative longitudinal positions of the jack and cutter. 1

Myinvention also consists in the devices and combinations of devices hereinafter described and claimed,

In carrying out my invention '1 have provided an organized machine which while particularly adapted for performing the function of trimming the heel of a last has certain fea tures applicable to machines for performing other trimming operations and which are not limited to the particular machine illustrated in the drawings accompanying thisapplication and hereinafter specifically described.

A preferred form ofmy invention is illustrated in the accompanying drawings, in which Figure 1 is a view in front elevation ofa machine embodying the in vention. Fig. 2 is a top plan View of the machine shown in Fig. 1, a portion of the top plate of the frame being broken away to show the underlying parts. Fig. 3 is a transverse sectional view taken on the line 3 3, Fig. 1. Fig. 4 is a detail sectional View of the parts supportedon the shaft which actuates the mechanism for oscillating the jacks, the shaft being shown in elevation. Fig. 5 is a detail sectional view of a portion of oneof the last-supporting jacks. a face View of those parts which are shown in Fig. 5; and Fig. 7 is a sectional view of one of the last-supporting jacks on the line 7 '7, Fig. 1.

Referring to the drawings, in which like characters of reference indicate like parts,, 1

indicates the frame of the machine, of any suitable construction, for supporting the op-- erating parts; 2, the top plate or table of the frame; 3, a trimming-cutter mounted in bearings in the" bracket 4, secured to the table 2 of the frame, and 5 a guide-roll rotatably mounted in the forked end of a rod 6, adjustably secured by means of a screw 7 in a bracket 8, secured to the table 2 of the frame.-

9 represents a jack constructed to support a last and present theheel portion thereof to the cutter. For trimming the projecting stub at the heel portion of the last the cutter and jack are relatively actuated to cause the cutter to travel around the heel of the last, and means are provided for changing the relative longitudinal position of the cutter and jack and for moving the cutter and jack toward and from each other. In the construction shown in the drawings for producing these movements the cutter 3 .is mounted in stationary bearings and rotated by means of a belt 10, passing over the pulley 11 on the shaft of the cutter, and the jack 9 isarranged to oscillate in front of the cutter to be moved longitudinally with relation thereto and to be moved toward and from the cutter.

For controlling the movements of the jack 9 toward and from the cutter a second jack Fig. 6 is 12 is provided, constructed to support a lastpattern and to present the heel portion of the pattern to the guide-roll 5. The jacks 9 and 12 are rigidly secured to a horizontal shaft 46, journaled in the upper end of a frame 13, pivotally mounted upon a shaft 14, journaled in journal-boxes 15 in the lower front portion of the frame. The frame 13 during the operation of the machine swings by its own weight toward the left, as shown in Fig. 3, and forces the last-pattern held by the jack 12 against the roll 5 and the last held by the jack 9 against the cutter 3, the position of the last with relation to the cutter being determined by the contour of the heel portion of the last-pattern. The jacks Sand 12 are substantially duplicates of each other, and each consists of a substantially rectangular frame, the central portion of one end of which is offset from the plane of the frame and provided with a collar fitting over and secured to the end of the shaft 46 in the upper end of the frame 13. The other ends of the frames are also provided with offsets in line with the shaft 46.

Referring now more particularly to the jack 12, illustrated in detail in Figs. 5, 6, and 7, the last-pattern 16 is supported on the jack with the face of the heel resting against the offset portion of the frame with the center of the heel in axial alinement with the shaft 46, to which the jack is secured. The ball of the last-pattern rests against a supporting-plate 17'secured by means of a screw 18 to a block 19, movable in a slot 20 formed in a guideway 21 secured in a slot in the end of the frame of the jack by means of screws 22. The edges of the plate 17 bear against the surface of the guideway on each side of the slot 20, and by loosening the screw the plate can be adjusted fordiffcrent sizes of patterns. For securing the patterns in position a clamp arranged to engage the toe of the pattern is provided and also clamps arranged to engage the sides of the pattern. The toe-clamp is shown at 23 and consists of an angular block secured by means of a screw-bolt 24 to a block 25, adapted to slide in the slot 20 of the guideway 21. For actuating the clamp 23 the block 25 is provided with a screw-threaded hole, through which passes a screw-threaded rod 20, which also passes loosely through the block 19, to which the plate 17 is secured. The outer end of the rod 26 is journaled in a block 27, screwed into the outer end of the guideway 21, being held from longitudinal movement in the block by means of a collar or flange 28 on the rod 26 hearing against the inner end of the block 27 and a nut 29 on the outer end of the rod bearing against the outer end of the block 27. A hand-wheel 30 is secured to the outer end of the rod 26, by means of which the rod can be rotated to move the clamp 23 into engagement with the toe of the pattern. The clamps, which bear against the sides of the pattern, are four in number, three being arranged to bear against the under side of the pattern and one against the upper side of the pattern.

These clamps consist of screw-threaded rods provided with heads or bearing-faces to engage the pattern. Two of these

clamps

31 and 32 project upwardly through blocks 33, provided with dovetail grooves engaging a guide on the lower side of the jack-frame, the blocks being adjustably held on the guides by means of set-screws 34. The clamp 31 engages the pattern near the heel portion and the clamp 32 engages the pattern near the top or ankle portion, the adjustable connection of the blocks with the jack-frame enabling the clamps to be adjusted longitudinally of the frame and transversely to the plane of the bottom of the last-pattern for different sizes of patterns. The clamp projects upwardly through a block 36,1)10- vided with a slot engaging a guideway projecting from the end of the jack-frame, the block being adjustably secured to the guide by means of a set'screw 37. The clamp 35 bears against the under side of the pattern, near its toe portion, the adjustable connection of the block 36 with the frame allowing the clamp to be adjusted transversely to the frame to accommodate patterns of different lengths. The upper clamp 38 is mounted in the same manner as the

clamps

31 and 32, so as to be adjust-able longitudinally of the jackfra me. The clamping-surface 39 of the clamp 38 is secured to the lower end of the screwthreaded red by means of a ball-and-socket joint, whereby the head can adapt itself to the surface of the pattern, and the upper end of the screw-threaded rod is provided with a handle or knob 40, by means of which the rod can be operated.

In practice the

clamps

31, 32, and 35 are set so that a pattern placed thereon will be properly centered in the jack, and the clamp 38 alone is operated to allow the removal of one pattern and the insertion of another. For centering the pattern in the jack I preferably provide centering devices adapted to engage the heel and the top of the pattern. As shown, the centering device for the heel consists of a yoke 41, carried at the outer end of two rods 42, arranged to slide in a collar 43, secured to a spindle 44, projecting from the jack-frame in axial alinement with the shaft to which the jack is secured. top of the pattern consists of a fork 45, ar ranged to slide in a hole formed in the end of the jack-frame or in the shaft to which the frame is secured. In centering the pattern the yoke 41 is pulled out to the position shown in Fig. 5, the pattern placed in the position shown in dotted lines in said figure, and the toe-clamp 23 actuated to engage the toe of the pattern. The fork 45 is now pulled out into the position shown in dotted lines, Fig. 1, the sides of the fork engaging the top edges of the pattern. Thepattern being thus held in position, the

clamps

31,32, and 35 are moved into engagement therewith and the yoke 41 and fork 45 pushed back from contact with the pattern, the yoke 41 moving transversely ICC The device for engaging the shaft 54.

At the end of the trimming operation it.

to the plane of the bottom of-the last-pattern. The toe-clamp 23 and the side clamps 31, 32, and 35 now form guides upon which the pattern can be placed in correct position and clamped thereon by means of the clamp 38. The clamping and centering devices of the jack 9 are the same in all respects as those just described. For the jack 9 the toe-clamp, however, is arranged at the end of the jackframe next to the frame 13 instead of at the end remote therefrom, as in the pattern-jack.

As a means for oscillating the .jacks the shaft 46, to which the jacks are secured, has fastened thereto between the bearings for the shaft an arm 47, connected by means of a rod 48 and strap 49 to an eccentric 50, se-.

cured to the shaft 14. The-shaft 14 has se- 7 cured thereto a pulley 51, over which passes a driving-belt 52, saidbelt also passingover a pulley 53 on the driving-shaft 54, journaled in boxes pivotally supported in yokes 55, secured to brackets 56, extending rearwardly from the upper portion of the machine-frame. The driving-shaft 54 is driven by means of a belt 57, passing over a pulley 58, secured to the shaft.

For moving the jacks longitudinally with relation to the pattern-guide and cutter the machine shown in the drawings is provided with mechanism for feeding the frame 13 laterally. This mechanism consists of a screwthreaded sleeve 59, loosely surrounding the shaft 14 and free to revolveindependently thereof, said sleeve being provided at one end with a pulley 60, over which passes a belt 61, the belt also passing over a pulley 62 onthe driving-shaft 54. The other end of the sleeve 59 abuts against a hub of the frame 13. (See more particularly Fig. 4;) A screw-threadedblock or nut 63, bolted to the end of thelever 64, pivoted to oneof the journal-boxes 15 for. the shaft 14, engages the upper surface ofthe sleeve 59. The frame 13 is provided with laterally-extending

hubs

65 and 66. y The hub of the pulley 51, which is secured to the shaft 14, abuts against the end of the hub 6.5, the hub of the eccentric 5O abuts against one end of the hub 66, and the end of the sleeve 59' abuts against the other end of the hub 66., By this construction as the sleeve 59 is re-. 'volved the sleeve will be moved longitudinally through the nut 63 and will carry with it the frame 13, the shaft 14,.and the parts secured thereto. For moving thedriving-shaft 54 longitudinally with the shaft 14 in order to keep the pulleys over which the belts 52and 61 pass in alinement an arm 67 is secured to the hub 65 of the frame 13, saidarm extending to the shaft54 and being provided with a segmental end which is received in the groove of a collar 68, secured to the driving is desirable that the mechanism for moving the frame 13 laterally be automatically thrown out of operation, and as a-means for accom-. plishing this result the machine of the draw-:

ings is provided with mechanism which will now be described. 7 v

Pivoted in the lower part and at the rear of the'frame are two levers 69, extendingto. the front ofthe machine and connected by means of thetreadle 70. Pivoted to the levers 69 and extending ,upwardlytherefrom are links 71, connected at their upper-ends by means of a rod 72, and extending upward from about the middle point of the rod 72 is an, arm 7 3,.to which is pivotally connected a lever 74,

pivoted on a bracket depending from the table 7 2 of. the machine-frame, and provided at its outer end with a weight .75, the tendency of the weight through the described connections being to raise the lever 69 and treadle.70.

Pivoted to the lever 64 is a lever 76, the lower end of which is bent or-otherwise formed to surround one of the levers 69, and the upper end of which is adapted to engage, whenthe treadle is in its lowest position, a shoulder or a notchon a plate 77, secured to the table 2of,

the machine-frame. The lever 76 is pressed into.- engagement with the notch, of the plate 77 by means of a-spring 78, one end of .Which engages the upper, end of the lever andthe.

other end of which is secured to abracket extending upward from the lever 64. The lever 76 when in engagement with the notch in the plate 77 serves as a locking means for holding-the lever69 andtreadle70 depressed and the nut 63 inflengagement with, the

threaded sleeve 59. Adjustably securedjon the-sleeve 59 by means of the set-screw 79 is a collar 80, whichas the sleeve 59.n1oves I tothe left, as viewed in Fig. 1, contacts with thelower, end of the lever 76 and. moves the upper end of, the lever out of engagement When the lever 76 is thus'released, the weight 75,

through the described connections, acts to I raise the levers 69 and treadle 7 O and through the lever 7 6.raise the nut 63 from en gagement. with the-sleeve 59. a i Y, I I

The frame-13 is-movable toward and from the guide and cutter, as has beenstated, and for. moving the frame back to separate the jacks'from the cutter and guide at the .end

of the trimming operation the following mechanism is provided: Referring more particularly to Fig. 3, S1 designates 'a 'slottedplate or block, the slot in which engages agroove in a collar 82, secured to a-rod;83,-.mounted in bearings in theupperrpart of the machineframe and'free to move longitudinallytherein, Secured to one side of theplateSI isa plate 84,,provided with an.inclined slot, through which passes a headed: stud'85, projecting from the side of the frame 13. Thejplate 84 is adjustably-secured to the plate SI-bybeing pivoted thereto at its lower end and by being connected therewith at. its upper end by means of. a strap 86, oneend of v whieh.is.piv-.

oted toathe-plate 84 and the other. end of which is secured to the plate 81 by means of a bolt passing througha slot in the endof the strap. Asthe plate .81 is raisedit ,willbe held from lateral movement by the engagement of its slot with the grooved collar 82, and the inclined slot of the plate 84 acting against the stud'85 will swing the frame 13 backward on its pivot to move the jacks away from the pattern-guide and cutter. The slot in the plate 8% is wider at its upper portion, as shown, whereby sufficient lost motion is provided for to allow the frame 13 to move backward and forward during the trimming operation. Extending downward from the plate 81 is a rod 87, the lower end of which is provided with friction-rolls 88, between which a rod 89 passes, connecting the levers 69. By this means as the lever 69 and treadle 70-rise when released by the mechanism hereinbefore described the plates 81 and 84 are actuated to move the frame 13 away from the pattern-guide and cutter.

When the frame 13 is moved away from the pattern-guide and cutter at the end of the trimming operation, it is desirable that the mechanism for oscillating the jacks should be thrown out of operation to allow the removal of the trimmed last and the insertion of an untrimmed last. For accomplishing this result the belt 52 is provided with a belttightener, which is actuated from the mech anism for moving the frame 13 away from the guide and cutter. This belt-tightener consists of a loose pulley or roll 90, carried on one end of a lever 01, pivoted to the arm 67, and connected at its other end by means of a link 02 with the rod 87. The result of this construction is that as the rod 87 rises the lever )1 is swung about its pivot and the belttightener roll 90 moved away from the belt 52, which is thereby slackened and allowed to run loosely over the pulley 51. The plates 81 and 84 and the rod 87 move laterally with the frame 13, and to insure such movement of the lower end of the rod 87 the lower end of the rod passes between a forwardly-projecting portion of the arm 67 and a strap secured thereto by bolts, as is clearly shown in Fig. 1 and 3.

The machine shown in the drawings is also provided with means for returning the frame 13 and the parts which are laterally movable therewith to their original positions. This mechanism consists of a shaft 03, journaled in the lower part of the machine-frame, provided with a screw-threaded portion 94 and constantly rotated by means of a belt 95, passing over a pulley 96, secured to the shaft. The arm 67 is provided with a downwardly and rearwardly extending portion 97, having bolted thereto a screw-threaded block ornut 08, adapted to engage the screw-threaded portion 91 of the shaft 93. As has been stated, the arm 67, with which the portion 07, carrying the nut 98, is integral, is rigidly secured to the hub of the frame 13, and consequently moves therewith. lVhen the frame 13 is moved away from the pattern-guide and cutter, as has been hereinbefore described, the portion 97 of the arm (57 is moved sufficiently to cause the nut 98 to engage the screw-threaded "portion 9a of the shaft 93, and when so engaged the frame 13 and the parts laterally movable therewith will be returned to their original positions.

It will be seen that the hearings in the frame 13 for the shaft 46, to which the jacks are secured, are comparatively short and are situated between the two jacks. For additionally supporting the jacks I provide arms 90, 100, and 101, secured to the rod 83, and connect the arms 09' and 101 by means of links or rods 102 and 103 to the spindle 44C of the jack 12 and a similar but shorter spindle of the jack 9, said spindles being in axial alinement with the shaft 46 and passing through hearings in the end of the rods 102 and 103. The arm 100 is connected in a similar manner to the shaft 46 by means of a rod 10 1,

and a rod 105, provided with journal-boxes at its ends, also connects the spindle 44 with the shaft 14:.

Thejournal-boxes 15 are pivotally mounted in yokes 105, adjustable vertically in brackets secured to the lower part of the machineframe, as clearly shown in Fig. 1. By this construction the shaft 14 can be brought into alinement with the other shafts and the shaft is allowed to move longitudinally through the journal-boxes without binding. Thejournalboxes 15 are situated at opposite ends of the machine, and for supporting the shaft between the boxes a collar 107, surrounding the hub 66 of the frame 13, is provided, (see Figs. 1 and 4,) said collar being supported from the table 2 of the machine-frame by means of a rod 108, projecting upwardly from the collar and secured to a block 109, sliding on a guide on the table 2.

For still further connecting the frame 13 and rod 83 to cause them to move laterally in unison the rod 83 has secured thereto an arm 110, which projects between the frame 13 and a strap 111, secured to the side of the frame 13 by suitable bolts, as is shown in Figs. 1 and The operation of the machine above described is as follows: The pattern and last having been centered and clamped in position in the jacks, as has already been described, the treadle 70 is depressed, thereby through the lever 70 depressing the lever 64 and bringing the nut (53 into engagement with the threaded sleeve 59, the upper end of the lever 76 being forced into the notch in the plate 77 and locking the treadle in its depressed position. At the same time the plates 81 and 8-1 through the rod 87, rolls 88, and rod 39 are moved down, thereby forcing the frame 13 toward the pattern-guide and cutter. As the rod 87 is moved down the belt-tightening pulley is through the lever 91 and link 02 brought into contact with the belt 52 to thereby cause the 'same to rotate the pulley 51 and the shaft 14. The jacks are now oscillated by means of the eccentric 50 and connections, as above described, and the frame 13,carrying the jacks, moved laterally by the engagement of the threaded sleeve 59 with the nut 63. As the jacks are oscillated and moved longitudinally past the guide and cutter the movement of the frame 13 toward and from the guide and cutter will be controlled by the engagement of the guide-r0115 with the heel portion of the pattern, and the heel portion of the last clamped in the jack 9 will be trimmed to the exact shape of the heel portion of the pattern. The collar 80 having been properly adjusted on the sleeve 59, at the end of the trimming operation the collar will contact with the lever 7 6 to disengage the lever from the notch in the plate 77, and therebyallo'w the treadle to rise, As the treadle rises the nut63will be disengaged from the sleeve 59, the frame 13 will be moved away from the pattern-guide and the cutter, the belt-tightener 90 will be moved away from the belt 52, and thenut 98 will, be' thrown into engagement with the screw-threaded portion 94 of the shaft 93 and the parts returned to their original position, as has been alreadydescribed.

For releasing the treadle manually at any point in the trimmingoperation a'hand-lever 112 is' provided, pivoted at the lowerend of the plate 77 and provided with a pin 113, arranged to engage the upper end of the lever 76 and disengage it from the notch in the plate 77. A weight 114 at the end of the hand-lever holds it normally in the position shown in Fig. 1. While the machine above described embodies my invention in the best form at pres- V entyknown to me, it is to be understood that my invention is not limited to the details of construction shown and described, but may be'embodied in many different-constructions Without departing from the spirit thereof.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent ofthe United States 1. A last trimming machine, having, in combination, a cutter, a jack constructed and arranged to support a last and present the end of the last to the cutter, and connected mechanism acting automatically to relatively actuate the jack and cutter to transfer the point of contact of the cutter back and forth across the end of the last supported on the jack and to change the relative longitudinal positions of the jack and cutter, substantially as described.

2. A last-trimming machine, having, in combination, a cutter, a jack constructed and arranged to supporta last and present the end of the'last to the cutter, connected mechanism acting automatically to relatively actuate the jaok and cutter to transfer the point,

of contact of the cutter back and forth across the end of the last supported on the jack and to change the relative longitudinal positions of the jack and cutter, and means for automatically returning the parts to their initial position, substantially as described.

A lasttrimming machine, having, .in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, and connected mechanism acting automatically to change the relative longitudinal positions of the jack and cutter and oscillate the jack, substantially as described.

4. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the'last to the cutter, connected mechanism acting automatically to change the relative longitudinal positions ofthe jack and cutter and oscillate the jack, and means for automatically returning the parts to their initial position, substantially as described.

5. A last-trimming machine, having, in

the jack to its initial position, substantially as described. 7

6. A lasttrimming machine, having, in combination, a cutter, a jack for supporting a last and presenting the end of the last to the tomatically'to oscillate the jack and move it longitudinally, substantially as described.

7. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, mechanism for oscillating the jack, mechanism for moving the jack longitudinally, and means for automatically throwing said mechanisms out of operation, substantially as described. i g

8. A lasttrimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, said cutter and jack being movable toward and from each-other, means forcontrollingsnch movements, means for oscillating the jack, means for changing the relative longitudinal positions of the jack and cutter, and means for automatically separating the jack and cutter, substantially as described. I

9. A last-trimming machine, having, in combination, a cutter, a jack constructed and arranged to support a last and present theend of the last to the cutter, said-cutter andjack being movable toward and from each other,

means for controlling such movements, connected mechanism acting automatically to relatively actuate thejack and cutter to transfer the point of contact of the cutter back and forth across the end of the last supported on the jack, and to change the relative longitu dinal positions of the jack and cutter, and

means for automatically throwing said mechanism out of operation and separating the jack and cutter, substantially as described.

10. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, mechanism for oscillatcutter, and connected mechanism acting au-.

ing the jack, mechanism for moving the jack longitudinally, and means for automatically throwing the mechanism for oscillating the jack out of operation and separating the jack and cutter, substantially as described.

11. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, mechanism for oscillating the jack, mechanism for moving the jack longitudinally, and means for automatically throwing the mechanism for moving the jack longitudinally out of operation and separating the jack and cutter, substantially as described.

12. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, mechanism for oscillating the jack, mechanism for moving the jack longitudinally and means for automatically throwing said mechanisms out of operation and separating the jack and cutter, substantially as described.

13. A last-trimming machine, having, in combination, a cutter, a jack constructed and arranged to support a last and present the end of the last to the cutter, said cutter and jack being movable toward and from each other, means for controlling such movements, connected mechanism acting automatically to relatively actuate the jack and cutter to transfer the point of contact of the cutter back and forth across the end of the last supported on the jack and to change the relative longitudinal positions of the jack and cutter, means for automatically separating the jack and cutter, and means for automatically returning said parts to their initial position, substantially as described. i

14. A last-trimming machine, having, in combination, a cutter, an oscillating jack for supporting a last and presenting the end of the last to the cutter, said cutter and jack being movable toward and from each other, mechanism for oscillating the jack, mechanism for moving the jack longitudinally, means for automatically throwing said mechanisms out of operation, and means for automatically returning said jack to its initial position, substantially as described.

15. A last-trimming machine, having, in combination ,a pattern-guide,a cutter, a frame movable toward and from the cutter and guide, jacks pivotally mounted in the frame, one of said jacks constructed to support a lastpattern with its end bearing against the pat tern-guide, the other of saidjacks constructed to support a last with its end bearing against the cutter, and connected mechanism acting automatically to oscillate the jacks and move the frame laterally,substantially as described.

16. A last-trimming machine, having, in combination,a pattern-guide,a cutter, a frame movable toward and from the guide and cutter, two jacks pivotally mounted in the frame constructed to support a last-pattern and a last, respectively, a shaft upon which said frame is pivoted, mechanism driven from the shaft for oscillating the jacks, and means for moving the frame laterally comprising a screw-threaded sleeve surrounding said shaft and bearing against said frame, means for rotating the sleeve and a screw-threaded nut engaging said sleeve, substantially as described.

17. A lasttrimming machine, having, in combination,a pattern-guide,a cutter, aframe movable toward and from the guide and cutter, two jacks pivotally mounted in the frame constructed to support a last-patternand a last, respectively, a shaft upon which said frame is pivoted, mechanism driven from the shaft for oscillating the jacks, driving mechanism for the shaft, means for moving the frame laterally comprising a screw-threaded sleeve surrounding said shaft and bearing against said frame, means for rotating the sleeve and a screw-threaded nut engaging said sleeve, and means for automatically disengaging the nut and sleeve and throwing the driving mechanism for the shaft out of operation, substantially as described.

18. A last-trimming machine, having, in combination,a pattern-guide,a cutter,a frame movable toward and from the guide and cutter, two jacks pivotally mounted in the frame constructed to support a last-pattern and a last, respectively, a shaft upon which said frame is pivoted, mechanism driven from the shaft for oscillating the jacks, mechanism for moving the frame laterally, means for returning the frame, comprising a screw-threaded shaft and a nut carried by the frame adapted to engage said shaft, and means forautomatically throwing the mechanism for moving the frame laterally out of operation and for moving the nut into engagement with the shaft, substantially as described.

19. A last-trimming machine, having, in combination, aframe, a clamp movable longitudinally of the last when in position on the jack and arranged to extend over and engage the toe of the last and clamps for engaging the sides of the last, substantially as described.

20. In a last-trimming machine, a jack comprising a frame, and clamps for engaging the sides of the last adjustable on the frame transversely to the plane of the bottom of the last when in position on the jack, substantially as described.

21. In a last-trimming machine, a jack comprising a frame, clamps for engaging the last and a heel-gage for centering the last movable transversely to the plane of the bottom of the last when in position 011 the jack, substantially as described.

22. In a last-trimming machine, a jack comprising a frame, clamps for engaging the last, and last -centering gages shaped to engage opposite sides of the heel and top portions of the last movably mounted on the frame, substantially as described.

A last-trimming machine, having, in combination, a pattcrn-gnide, a cutter, a

frame away from the guide and cutter, a*-

treadle, a locking devicefor the treadle, means i for raising the treadle, intermediate connections for disengaging the nut and sleeve, throwing the driving mechanism for the shaft out of 0pera'ti0n,moving the frameaway from the cutter-and guide and engaging the nut and screw-threaded shaft when the. treadle rises, and means for automatically releasing the treadle, substantially as described.

Witnesses:

FRED O. FIsH, "ALFRED H; HILDRETH.

25 In testimony whereof-I a'fli-X my signature -1n presence of two WibllGSSGS;

BERNARD GMJLAGHER.