US1298759A

US1298759A - Feed mechanism for shoe-sewing machines.

Info

Publication number: US1298759A
Application number: US80909A
Authority: US
Inventors: William C Meyer
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1913-07-29
Filing date: 1916-02-28
Publication date: 1919-04-01
Anticipated expiration: 1936-04-01

Description

`SHEEr l.

5 SHEETS Patented W. C. MEYER.

FEED MEGHANISM FOR SHOE SEWING MACHINES.

APPLICATION FILED FEB. 28. I9I6.

w. c'. MEYER.

FEED MECHANISIVI FUR SHOE SEWING MACHINES.

APPLICATION FILED FEB. 28.1916.

Patented Apr. 1, 1919.

5 SHEETS-SHEEI 2.

W. C. MEYER.

FEED MECHANISM FOR SHOE SEWING MACHINES.

APPLICATION FILED FEB. 28.1916.

Patented Apr. 1, 191).

5 SHEETS-SHEET 3.

W. C. MEYER.

FEED MECHANISM Foa SHOE SEwlNG MACHINES.

APPLICATION FILED FEB, 2B. 1916.

Patented Apr. 1, 191).

5 SHEETS-SHEEI' 4.

W. C. MEYER.

FEED MECH'ANISM FOR SHOE SEWING MACHINES.

APPLICATION FILED FEB. 28.. 1916.

1,298,759., l Patented Apr. 1, 1919.

5 SHEETS-SHEET 5.

@@.g f# 40 3 232 /Z y /256 o ,IIII'IIIIIII "Il 226 I. I=I y 230 mwen/ion.-

WILLIAM c. MEYEE or BEVERLY, MASSACHUSETTS, AssIGNoE, BY MEsNEAssIGN-- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A

A. CORPORATION OFV NEW JERSEY.

FEED MECHANISM Eon. SHOE-SEWING MACHINES.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Original application led July 29, 1913, Serial No. 781,785. Divided vand this application led February 28, i 1916. ,erialf'No. 80,909.

To all whom t may concern.'

Be it known that I, WILLIAM C. MEYER, a citizen of the United States, residing at Beverly, in the county of Essex and Commonwealth of Massachusetts, have invented cer-` tain new and useful Improvements in Feed Mechanism for Shoe-Sewing Machines; and I do hereby declare the following to be a full, clear, and exact description of the intype.

Machines of the McKay type are ordinarily rovided with a feed point or awlv which, during. each cycle of operations, is projected into engagement with the work, and is then advanced in the direction of the seam to feed the work; The feed point is usually supported and actuated in such a manner that during its advancing or work feeding movement it is swung abouta horizontal axis, thereby varying the direction and extent of engagement of the feed point with the Work, which has resulted infuncertainty in the feedingaction of the feed point.

One of the objectsv of the present invention is to provide shoe sew-ing machines of the McKay type with mechanism of simple construction for supporting and actuating the feed point in such a manner as to feed the work with greater accuracy and certainty than the feeding devices of such machines heretofore constructed. 'With this object in View, the invention contemplates the provision, in combination with mechanism for reciprocating the feed point laterally in the line of feed, and means operated by the lateral movement of the feed p'oint, for moving the feed point into engagement with fand for retracting it from the Work, of supporting and controlling means for the feed point, constructed to maintain the angular position thereof unvaried during the advancing movement of the feed point to feed the work.

After the -seam has been completed, the machine should be brought to rest at a point in the cycle of operations in which the needle is at or near its highest position, and the i presser foot.l is free to be lifted to permit the removal yo f the work and 'the insertion of another plece of w'ork in operating position in the machine. Before removing the work the operato-r severs the side or leg of the needle loop leading to the work. At this point ina cycle of operations, the feed point is in a position adjacent the needle, and

vtherefore interferes with the severing of the thread of the needle loop.

A further object of the invention is to produce a machine of the McKay type in which the parts of the machine, upon stopping the machine, may bel brought to such positions that they vdo not interfere with the severing of the thread of the-needle loop, and that they form no obstruction to the removal and insertion of the work. With this object inview, a feature of the invention contemplates the provision of means for withdrawing the feed point from its normal position in the direction away from the- `needle upon stopping the machine. Broadly considered, the invention contemplates any suitable means for accomplishing this result. In the preferred form of the invention, however, tlie machine is provided with means for disconnecting the feed point from its actuating mechanism upon V stopping the machine, and with means for withdrawing the feed ypoint away from the needle when it has been thus disconnected- In the lbest form of the invention which has been devised, the

machine comprises an automatic stop mecha-- nism for bringing the machine to rest at a definite -pointin a cycle of operations, and is provided with means operated by the engagement lof the stopping devices which finally bring the shaft to rest for automatically disconnecting thel feed point from its actuating mechanism.

Further features of the inventionconsist of certain novel and impro-ved constructions,

vious to those skilled in the art from the following description.

`The present application constitutes a division of an application Serial No. 781,785, filed July 29, 1913, -on which Patent No. 1,177,581, dated March 2 8, 1916, has been granted.

The features of the invention will bereadl ily understood from an inspection of the accompanying drawings taken in connection withythe following detailed description of.

the constructions therein shown.

In the drawings illustrating a machine embodying the invention in its preferred form, Figure 1 is a view in side elevation of the complete machine; Fig. 2 is a view'in front elevation, partly in section, of the head of the machine; Fig. 3 is a plan view partly in section, illustrating all except the rearl portion of the head of the machine; Fig. 4 is a detail view in verticalsection illustrating the feed mechanism and certain associated parts; Fig. 5 is a detail sectional view taken substantially on the line 5 5 of Fig. 4; 6 is a sectional view taken substantially on the line 6 6 of Fig. 3; Fig. 7 is a view in side elevation, partly in section, of the mechanism illustrated in Fig. 6 looking from the left; Fig.. 8 is a detail'sectional view taken substantially on the line 8--8 of Fig. 7; Fig. 9 is a sectional view taken subyst'antially on the line 9-9 of Fig. 8; and

Fig. 10 isa detail view in side elevation partly` in section, illustrating particularly cated at 12. The workis engaged during` the sewing operation between the upper surface of the tip of the horn and presser foot4 14 which is arranged for vertical movement to accommodate work of varying thicknesses. These-parts, their actuating mechanisms and mode Vof operation, and the arrangement and operation of other parts shown in the drawings and mentioned briefly in connection with the description of the present invention, are fully described in said application, Serial No. 781,785.

The work is fed at intervals during the operation of the machine by the feed point 16 which is projected into the work andis then advanced in the direction ofthe seam to feed the work. The feed point 16 is mounted upon a slide 18 arranged in an opehing in the lower end of the presser bar 20.

The lower face of the forwardly extending portion of the slide 18, in which the feed point is secured, is inclined and engages the 'the frame through which thepresser bar slides. A horizontal slot 26 is formed in the slide 24, and cam slots 28 are formed in .the portions of the presser bar which embrace the slide 18 and the slide 24. The

(surface of the work, vand so thaltthe lefthand portion thereof is very nearly horizontal but inclined downwardly slightly in the direction of the `feed movement of the work. During the forward movement of the feed point, the angular position of the feed point is maintained substantially unvaried by the engagement of the surface 36 o f the slide 18 with the lower horizontal surface of the slide 24, said surfaces being held in engagement during the advancing movement of the slide 18 by a tension spring 38 connecting f the rear end 0f the slide 18 with the end of the arm 32. Starting with the feed point in retracted positionout of engagement with the work, as shown in the drawings, when the slide 18 is carried to the left by the lateral swinging movement of the arm 32, the feed point is first moved downwardly at an angle by themovement of the bolt 30 through the sharply inclined portions of the cam slots 28, and isthus projected into engagement -with the work. lVhile the bolt 30 is moving through the 4left-hand or slightly inclined portions of the slots 28, the feed point acts to feed the work, andon account of the slight inclination of said slots, the feed point is projected slightly farther into engagement with the Work as it adva ces, which insures certainty and reliability in the .feeding action. During the entire movement of the feed point from retracted position out of engagement with the work,

t0 its limiting position in the direction' of feed, it is maintained in unvaried angular position bythe engagement of the

slides

18 and 24, the slide 24 moving vertically/in its guides during the advance ofthe feed point.

On account of the structure fof the camlslots,

.80 slide 18 and the slide 24 are connected with inw 28 as described, the slide 18 is not lifted away from the work during the retracting movement of the feed point until the bolt 30 reaches the sharply inclined portions of the cam slots, which occurs near the end of the retracting stroke of the feed point. In or- .der to permit the feed point to be drawn back without undue resistance, the connection between the slides is arranged to permit the slide 18, as it is retracted, to swing abou-t the connecting bolt 30. To this end, the slide 18 is cut away at 40 at an angle to the adjacent horizontal face of the sllde 24. As the slide 18 is drawn back after the feeding movement of the' feed .point by the backward pull of the link 34 on the bolt 30,A the resistance of the work against the feed pointJ will cause the `slide 18 to vswing about the bolt 30 against the tension of the spring The feed point will drag back over the surface of the work until the bolt reaches the sharply inclined portions of the cam slots 28, when the slides willbe lifted to bring the feed point out of engagement with the workand restore the parts to the positions shown in Figs. 1 and 3.

During the sewing operation, 'themachine is driven by means of a belt 42 passing about a pulley 44 fast 0n the main shaft 46. of the machine, and connecting said pulley with a pulley 48 mounted upon va driving shaft 50 located in the base of the machine. vThe shaft 50 is provided w-ith a loose pulley 52 and with a pulley 54 -splined thereto but movable longitudinally thereof, which is driven by a belt from a power shaft. The pulley 48 is loosely mounted on the shaft 50 in front of the pulley 54,-and is provided with a ring of frlction material for engagement with the adjacent surface of the pulley 54.l A fourth pulley 56 is. pinned to the shaft'50, and the pulley 48- carries a second ring uof friction material for engagement with the adjacent surface of the pulley 56. 'The shaft 50 is arranged for longitudinal movement in its bearings, and when said shaft is thrust endwise-to ward the rear of the machine, the pulley 48 is clutched between the opposed faces of pulley 56 and pulley 54 and thereby caused torotate with said pulleys. When the shaft is released and allowed toA move forwardly or toward the front of the machine, the loose pulley 48 is carried out of clutching engagement with the pulleys 54v and 56. The

'shaft 50 is actuated to clutch the pulley 48 between

pulleys

54 and 56 by suitable connections from the treadle 60. .Said connections comprise a bell crank lever plvoted on a studk 62 and provided with 'an arm 64 which engages the endof the shaft 50. The other arm 66 of the |bell crank lever is provided with a forked forward extremity which embraces a 'rod 68, which isthe rod which controls the device for throwing the stop mechanism into operation. The rod 68 1s connected at its lower end with a lever 7 0, which lever is arranged to be`actuated from the treadle. A collar 72 is secured to the rod 68v above the arm 66, and the rod 68 is yieldingly held in raised position by the coiled spring 74. The treadle 60 is pivoted on a. horizontal. stud 76 carried by a block .mounted on a vertical swivel pin 78. Thisv manner 'of mounting the treadle lpermits the treadle to be swung vertically and horizontally. The rearwardly extendin arm 80 of the treadle is provided with a yateral projection 82 which is adapted to enga-ge beneath the forward end of the lever 70. When the projection 82 is beneath the arm of thelever 70, and the treadle is depressed, the rod 68 is moved downwardly and actuates the bell crank 66 to thrust the shaft 50 rearwardly and thereby clutch the pulley 48 to the shaft land start the machine into operati-on. When the `forward end 'of the treadle is released, it is lifted by a coiled spring 84, allowing the rod 68 to be lifted by the spring 74 to release the lever 644-66. The shaft 50 may then move forward to releasey the pulley 48 from clutching engagement with pulleys 54 and 5.6. In order to permit the work to be removed when the seam has been completed, and another iece of work to be introduced easily and quickly, the machine is provided withV mechanism for automatically arresting the rotation of the shaft at the point in the cycle of operations when the needle is retractedV out of en agement with the work -ber of which is driven at Slow speed ina forward direction, and which, when'the clutch members are engaged, first acts as a brake to slow the shaft down to the slow speed of the forwardly driven member, and then to drive the shaft at slow speed in a` forward direction to bring the devices which 4 finally arrest the rotation of the shaft into engagement. The friction clutch consists of clutch members 8 6 and-88, of whichv the member 86 is loosely mounted on the main shaft 46 of the machine, and is driven at slow speed in the same direction as the norm-al direction of rotation of the shaft 46, by means of a spiral pinion 90, mounted on a hollow shaft or sleeve 92 journaled in bearings 94 in the machine frame, which meshes with the teeth of a spiral gear 96 secured to orl formed integral with the clutch member 86. The hollow shaft 92 is constantly driven during the rotation of the main shaft of the machine through a friction clutch connecting said' shaftwith a pulley 98 which is continuously driven by meansl of a belt 100 connecting said pulley with the pulley 56 mounted on the shaft at the base of the machine. The clutch connection bel tween the shaft 92 and the pulley 98 consists of a clutch member-102 secured to or formed' integral with the shaft 92, ancha second clutch member 104 carried by the pulley 98,.

ley 98 is disengaged. This brake comprises a friction brake member 108y mounted on the shaft 92 to rotate with said shaft. The brake member- 108 is connected with the hollow shaft by a pair of blocks or keys 110 secured by screws to the member 108 and ar-4 rangedA to yproject inw-ardly through slots 112 in the adjacent portion of the hollow shaft. The brake member 108 is. arranged to be engaged with the interior of a brake shoe 114 formed on the frame of the machine when the rod 106 is moved in a direction to disengage the clutch. rThe inner ends of the blocks 110 extend4 inwardly to points adjacent to the reduced portlon 114 of the ,rod 106, yand the brake member 108 is normally held in position on the rod with the' blocks 110 in engagement with the shoulder 116 by a coiled spring 118 surrounding the reduced portion of the rod'106, and engaging the member 108 outside of the hollow shaft 92, said spring being confined between the member 108 and a collar' or washer 120 held by a nutthreaded on the end of the rod. The members of the friction clutch are held normally in engagement by means of a second coiled spring 122 surrounding the reduced portion 114of the rod,

' and arranged within the-coiled spring 118.

The coiled spring 122 engages at its inner endthe projectinggextremity of the hollow* shaft 92, and acts to maintain the

members

102 and 104 of the friction clutch normally in engagement, 'and the brake member 108 normallyy disengaged from the brake shoe.'

In order to disengage the clutch and engage the brake, the rod 106 is moved longitudinally to the left (Fig. 8,). This movement of the rod compresses the coiled spring 122, but does ynot affect the coiled spring 118 until the friction clutch is disengaged and the members of the brake are brought into engagement, since the spring 118 holds the blocks 110 against the shoulder 116, and the brake member 108 moves with the rod 106.

v shoulder 116,-on the rod engages the inner ends of the blocks 110, after which, by the force of thespring 122, the brake member 108, rod and spring 118 are moved to the right together a'slight distance, sufficient, however, to disengage the brake and engage the clutch.

The clutch memben'86 is secured to and preferably formed integral with y a sleeve 124 mounted loosely on the main shaft 46 of the machine, and extending from said clutch member toward the end of the shaft. The clutch member 88 is secured to 'a flange 126 extending outwardly from a sleeve 128 loosely journaledon the sleeve 124. The sleeve 128 is free to move longitudinally ofthe sleeve 124 and yof the shaft 46, but is caused to rotate with the shaft by a connection with the pulley 44. In the construction illustrated, the sleeve is providedl with -a pair of spaced shoulders or abutments 130,

slow speed in a forward direction, they first act as a friction brake to slow down the speed of the main shaft until `the shaft and the parts rota-ting therewith are moving at the same speed as the member 86. The member 86 then acts as a driving member through its engagement with the' clutch member 88 to drive the shaft ina forward direction until the devices willich finally bring the shaft to rest are brought into engagement. The clutch members are engaged at `-a definite point in -a rotation of the shaft, and the shaft-isv finally brought to rest at the end of a-defnite lnterval after the clutch members are engaged,- The mechanism for engaging the

members

86 and 88 of the clutch comprise a timing cam consisting of-a cam groove 138, formed in the sleeve 128 and engaged by al cam roll 140 carried by an arm 142 of a bell crank lever `pivoted on a shaft 144. 4The other arm 146V normally'held out of engagement'with the arm 146, so that during the normal operation of the machine, the bell crank lever is oscillated idly by the cam. The locking pin 152 is mounted to slide vertically in the forward end of a slide 154 mounted to slide horizontally in suitable guides in the frame, and yieldingly held in forward position by a coiled spring 156 interposed between a shoulder on the slide and the end of a screw 158 threaded Ainto the frame, by which the tension of `the spring may be ad]usted. The slide is provided with an extension 160 projecting rearwardly therefrom through 'a suitable perforationl in the portion of the frame in which the slide is mounted, and

the forward movement of the slide in its guides is limited by a nut 162 threaded on the extension 160. By adjusting this nut, the slide may be adjusted to` bring the locking pin into a position such that the projection 150 on the locking pin will register with the recess 148 at the proper time in the rotary movement of they main shaft. The locking pin is forced upwardly in the slide by a coiled spring (not shown) seated ,in a recess in the slide 154 and engaging the head of the locking pin, and the lower end of the pin is connected with the treadle rod 68 so that the pin is helddown 4with the projection 150 out of engagement with the recess 148 while the treadle is depressed and the main driving clutch engaged to drive the main shaft of the machine.

When the projection 150 on the locking pin engages the recess 148 in the arm of the bell crank lever, the lever is no longer free to oscillate, since it is locked tothe vslide 154, and by the action of the face of the cam groove 138 on the roll 140 carried by the arm of said lever, the clutch` member 88 will be forced over -into engagement with the clutch member 86 when the roll engages a. certain'point in the cam groove, which occurs at a deinite point in the rotation of the main shaft. After the clutch members have been engaged, t e slide 154 will be moved rearwardly in it guides against the tension of the spring 156 by the action of the cam groove 138 on the bell crank lever, and the force with whichythe clutch members are engaged will depend upon the tension ofthe spring 156.

The treadle rod 68 is-connected with an arm 164 pivoted on a stud 166 mounted in aV block 168 secured to the lower end of the locking pin. A latch 170 is also pivoted on the stud 166, and is arranged to engage beneath a shoulder 172 on the slide 154 and hold the locking pin from upward movement until the treadle rod has been raised sufficiently to leave the locking pin free to move upward into secure lockingengagement with the recess in the arm of the bell crank lever. The latch is disengaged from the shoulder-by the movement of the arm 164, due to the lifting `of the treadle rod. A lost motion connection is provided between the armand the latch to allow the treadle rod to be raised before the latch is disen` gagedfrom the shoulder 172. In the construction illustrated, the connection between 'the arm and the latch consists of 'a pair of shoulders formed on the hub of the arm adapted .to engagev corresponding shoulders on the hub of the latch. These shoulders arev arranged so that when the arm is' moved in either direction there is a certain amount of lost motion of said arm before the latch is actuated by thearm. When the treadle is depressed, the arm 164 swings down until one of the shoulders on its hub engages the opposed shoulder on the hub of the latch, after which the continued downward movement of the treadle acts to draw the lockonthe hub of the latch 170. The latch 170 is then swung ,outward from beneath the shoulder 172, leaving the locking` pin free to be forced upward by its actuating spring.

Mechanism is provided for timing the engagement of the locking pin with the'arm .146 of the bell crank lever, sorthat the locking pin will not move into engagement with said arm until the arm is in a position substantially such that the recess 148 registers with theprojection on the locking. pin. 'This insures'a secure locking engagement between the locking pin and the arm. The block 168` extends upwardly along the end of the slide 154, and a second block 174 is pivoted to the block 168 on a stud 176. The block-174 is forced in a direction `to bring the 'said blockl up against the end of the slide 154 by a spring 178 coiled about the stud 176 and engagmg a pin 180 secured in the block174.

vA third block 182 is pivoted on a stud. 184 at vthe upper endof the block 174, and is normally held down against the upper end of 'the block 174 by a spring pressed pin 180, the pointed extremity of which engages a recess in said block. When the locking pin is drawn down by the depression of the treadle, the block 174 is swung outwardly away from the end of the slide 154 by the engagement of ashoulder 182a on the forward end of the slide with a shoulder 184a on the' block 174. When the latch 170 is released from beneath the projection 172, and the locking pin is forced upward by its actuating spring, the shoulderl 18411 is disengaged from the shoulder.182, and. the block 186 with the shoulder 188 prevents the locking pin fromA being forced upwardly while they are engaged. The block 182 projects above th'e'upper face ofthe slide 154, and the arm 146 .of the bell crank lever operates close to the upper face of the slide. When the arm 146,1during thev oscillatory movement of the bell crank lever, arrives in a position such that the recess 148 registers with the projection 150, the lever strikes the inner face of the block 182 and knocks said block and the block 174 on which it is mounted, -away from the end of the slide, thereby disengaging the shoulder186 from beneath the shoulder 188, and permitting the locking pin to be forced upwardly to engage the. projection 150 in the recess 148.

When it is desired to stop the machine without throwing the stop mechanism into operation, the block 182 may be swung about its pivotal connection with the block 174 by a manipulation of the arm 188a formed on said block, the block then being held in position by the engagement -of the pin 180 in a second recess in the block. When the block haslbeen thus adjustedit will be out of the' path of the arm 146 bf the bellv crank lever when'the block 174 swings in against the end of the slide to bring the shoulder 186 beneath the shoulder 188. The engagement of these shoulders will prevent the locking pin` from being forced upward into locking engagement with'the arm 146 of the bell crank lever, and the machine is then allowed' to slow down gradually until it comes to rest.

The cam groove 138 is preferably timed v so that the arm146 of the bell crank lever is moved into a position to bring the recess 148 into registration with the projection l150 just as the roll 140 arrives at an idle portion of lthe cam groove, thereby allowing the shaft to' rotate a certain interval after the projection 150 is engaged in the recess 148, `be fore the clutch members are engaged. This permits the projection 150 to become firmly seated in the recess 148 before 'the cam acts to engage the 'clutch members.

"driven at slow speed in a forward direction by said member, \the stopping devices which engagement.

After the slow speed clutch members V86l -anism vand its rotation arrested by mecha- Vnism which is actuated 'by the movement of the positively driven stopping device. The

clutch members 86 and`88 are still engaged when the main shaft is brought to rest, and

the rotation of said shaft is arrested by disengagin the clutch which connects the hol-- low sha t 92 with the pulley 98 and engaging the brake member 108 with the brake shoe 114'to stop the rotation of said shaftv and the pinion 90. The stoppingy devices through the engagement lof which the main shaft is nal1ybroughtto rest comprise a linger or shoulder` 190 carried at the forward end of an arm 192 and kadapted to be engaged by a projection orlug. 194 secured to or formed integral with the flange 126. The arm 4192 is mounted for movement to carry the finger 190 into and out of the path of the lug 194, and to this end is secured to a rock shaft 196 'journaled in an arm 198 which is pivoted on a shaft/200. When the locking pinvis in lowered .position with the projection 150 out of engagement with the recess 148, the arm 192 is held down so that the; shoulder 190 is out ofthe path of the projection 194 by a block 200'1 secured tothe lower end of the locking pin, which engages a roll 202 carried by an arm 204 secured on the rock shaft 196. When the locking pin is forced upward to engage the projection 150 in the recess 148, the arm -192 is swung upwardly to bringthe shoulder 190' into the path'of the lug 194 by a tension spring 206. vThe arm 198 which is pivotedon the shaft 200 extends downwardlyin position to engage the end o-f the rod 106. When the lug 194 engages the shoulder 190 on the arm 192, it carries the arm 192 to the left (Fig. 6)', thereby swinging the arm 198 to the left about the shaft 200 and engaging the end of the arm l198 with the end ofthe rod 106. The rod 106 is .thereby thrust longitudinally against the tension of. the spring 118 in a direction to disengage the clutch members the shaft 106 takes place against the tension of both the

springs

118 and 122, thereby forcing the brrrkke members more firmly into ion the action of the stopping devices so that the parts are brought to rest without shock or jar and without excessive strain on any of the parts. When the forward rotation of the shaft has been arrested, the parts are scurlely locked together, thereby preventing recoi It will be obvious that the lug 190 will engagethe projection 194 at the end of a brake is engaged 'further movement of he springs 118 and 5122 cushgaged byl a shoulder 250'on the arm 198. a straight hook needle, a work supporting 65 When, upon stopping the machine, the arm 198 is swung to the left (Fig. 6), through the engagement of the lug 194 with the projection 190, the shoulder 250 on said arm engages the end ofthe slide 248 and carries said slide to the left therewith. This movement of the slide 248 actnates the arm 246, shaft 244 and arm 242 in a direction to retract the slide .236, and to withdraw the head of the plunger 226 from the hole in the link 212. When the link 212 has been thus disconnected from the arm 214, the feed l point is immediately drawn back into rellink 212;

tracted position on the presser-foot by a spring 252 lwhich engages the end of the When tliemachine is started, the arm 198 is thrown back vby the springs 118 land 122, releasing the slide 248 and the mechanism connecting said slide with the plunger 226, and allowing the forward end of the plunger to be forced against the inner face of the link .2.12. When the movement of the arm 214 brings the head of the plunger into registration withl the hole in the link 212, the head' of the plungersnaps forward into the hole in the link,o`wing to the action of the sprmg 232. Upon starting the machine, therefore,

the feed point, is started into operation in timed relation to the other parts of the machine. y

While it is preferred to-employ the specific construction and arrangement of the parts shown and described, since this construction and arrangement is the simplest and most eiicien-t embodiment of the invention which has yet been devised, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be varied or modified without departing from the broader features of the invention.

Having explained the nature and object'l of the invention. and specifically described one form of machine in which it may be embodied, what is claimed is 1. A sole sewing machine, having, incombination, stitch forming devices comprising a straight hook needle, al work supporting horn, a vertically and laterally movable feed point, mechanism for moving the feed point laterally to feed the work, means operated by the lateral movement of the feed point for moving the feed point into and out of engagement with th'e work, and means for supporting the feed point and for. controlling the position thereof constructed and arranged to maintain the angular position of the feed point unvaried during its advancin movemenli; in the directionl of feed to eed the wor 2. A sole sewing machine, having. in com- /Y horn, a vertically and laterally movable feed point, mechanism for moving the feedpoint laterally to feed the work, cam acting means operated by the lateral movement of the feed 'the position thereof, constructed andarranged to maintain the angular position -of the feed point unvaried during its advancing movement in the direction of feed to feed the work.

3.y A sole sewing machine, having, incombination, stitch forming devices comprising a straight hook needle, a work supporting horn, a vertically and laterally movable feed point, mechanism for moving the feed point laterally to feed the work, means operated by the lateral movement of the feed point for moving the feed point into and out of engagement with the work comprising a cam fixed in the direction of feed, and means for supporting the feed point and for controlling the position thereof, constructed and arranged to maintain the angular position of the feed point unvaried during lts advancing movement in the direction of feed to feed the work.

4. A sole sewing machine, having, in combination, stitch forming devices comprising a straight hook needle, a Vwork supporting horn, work feeding mechanism comprising a slide, a block arranged for movement with ytal movements of the block for actuating the block to move the feed point into and to withdraw it from engagement with the work.

5. A sole sewing machine, having, in combination, stitch forming devices comprising a straight hook needle, a work supporting horn, work feeding mechanism comprising a horizontally and vertically movable slide, a.

feed point mounted thereon, a vertically movable slide having a sliding engagement with said first slide to maintain the angular position thereof unvaried' durin the advancing movement of the feed point to feed the work, a vertically movable bar for sup- -porting said slides having a cam slot formed therein, a pin fixedin said first slide and engaging the cam slot in said bar, and mechanism for moving the first slide laterally vof the bar to impart work, feeding movements to the feed point and thereby reciprocate the pin in the cam slot to move the feed point into and out of engagement with the work.

6. A s le sewing machine, having, in combination, stitch' forming devices comprising a straight hook needle, a work sup-porting horn, a feed feed point into and out of engagement with the work and for advancing and 'retracting it in the direction of feed, and means for moving the feed point from its normal position in a direction awa from the needle upon stopping the mac ine to allow the thread of the4 needle loop to be severed.

f7. `A sole sewing machine, having, in com-- bination, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for actuating the feed point, andmeans for moving the feed point from its normal position in a direction away from the needle to allow the thread 1of the needle loop to be severed upon stopping the machine with the needle out of the work.

8. A sole sewing machine, having, in combination, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for vmoving the feed point into and out of engagement with the Work and for advancing and retracting itin the direction of feed, and means for moving the feed point from its normal position in a direction away from the needle to allow the thread of the needle loop to be severed u,pon stopping the machine at a point in a cycle of operations when the needle is out of the work and the feed point is somewhat advanced from4 its retracted position.

9. A sole sewing machine, having, in combination, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, mechanism for actuating the feed point, and means acting automatically upon stopping the machine to move the feed point away from its normal position in a direction away'from the needle to allow the thread of the needle loop to be severed.

10. A sole sewing machine, having, in combination, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for actuating the feed point, and means for disconnecting the feed point from its actuating mechanism and withdrawing it from its normal position in a direction away from the needle to allow the thread of the needle loop to be severed upon stopping the machine.

11. A sole sewing machine, having, in

combination, stitch forming devices including a 'straight hook needle, a work supportmg horn, a feed pomt, mechanlsm for actuating the feed point, and means acting auto-- matically upon stopping the machine to disconnect the feed point from' its actuating polnt, means for moving the mechanism and withdraw it from its normal position in a direction away fromvthe needle to allow the thread of the 'needle loop to be severed.

12. A sole sewing machine, having, in combination, a`- main shaft, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for actuating the feed point, a stop mechanism for -arresting 'the rotation of the shaft, and means controlled by the stop mechanism for automatically moving the feed point from its normal position in a direction away from the needle to allow the thread of the needle loop to be severed upon-stopping the machine.v

13. A sole sewing machine, having, in combination, a main shaft, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for actuating the feed point, a stop mechanism for the shaft, and means controlled -by the stop mechanism for automatically disconnecting the feed point from its actuating mechanism and withdrawing it from its normal position in a direction away from thev needle to allow-the thread of the needle loop to be severed upon stopping the machine. 14. A sole sewing machine, having, in combination, a shaft, stitch forming devices including a straight hook needle, a work supporting horn, a feed point, means for actuating the feed point, a stop mechanism for the shaft comprising stopping devices f-or finally bringing the shaft torest at a predetermined point in its rotary movement, mechanism actuated by the engagement of the stopping devices for disconnecting the feed point from its actuating mechanism, and means for withdrawing the feed point fromits normal position in a direction away from the needle to allow the needle loop to be severed when it has been disconnected from its actuating` mechanism.

15. A sole sewing machine, having, in combination, stitch forming devices comprising a straight hook needle, a work supporting horn, a feed point, mechanism for for 4advancing and retracting the carrier inthe direction of feed, means for maintaining the .carrier in anrunvaried angular position during its .advancing movement, and a pivotal connection about which the carrier is permitted to swing during the first part 5 of the movement of the carrier by which tfhedfeed point is retracted in the direction of ee V 17. A sole sewing machine having, in combination, stitch forming devices com- 10 'pl-ising, a straight hookneedle, a Work supporting horn, a vertically and laterally movable -feed point, a feedA point carrier, means for advancing and retracting the carrier in direction of feed, mea-nsfor maintaining the carrier in anunvaried angular position dur; ing its 'advancing movement and a connection permitting the feed point to be moved vertically to a slight degree out of stock ment of the carrier.

VV'ILLIAM C. MEYER.

penetrating-position by the retracting move-