US1411798A

US1411798A - Shoe-sewing machine

Info

Publication number: US1411798A
Application number: US95893A
Authority: US
Inventors: William C Meyer
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1916-05-06
Filing date: 1916-05-06
Publication date: 1922-04-04
Anticipated expiration: 1939-04-04

Description

W. C. MEYER. SHOE SEWING MACHINE. APPLICATION FILED MAY 6, I916- RENEWED JUNE 17, I920.

1,41 1,798. r v Patented Apr. 4, 1922.

17 SHEETS-SHEET 244 70 Q 256 25a 2J4 260 w. 0. MEYER. SHOE SEWING MACHINE. APPLICATION FILED MAY 6,19'6: RENEWED JUNEI7,19Z0- 1,41 1,798. Patented Apr. 4, 1922.

I7 SHEETSSHEET 2.

W. CPMEYER. SHOE SEWING MACHINE. APPLICATION FILED MAY 6, I916- RENEWED xuivc i1, 19 2o.

1,411,798. 1 Patented 1111114119221 '17 SHEETS-SHEET 3.

wwrzzfar v W. C. MEYER. SHOE SEWING MACHINE. APPLICATION nugn MAY 6. 1916. mm JUNE 17. 1920.

1,41 1,798; Patented Apr. 4, 1922.

I? SHEETS-SHEET 4- W. C. MEYER.

SHOE SEWING MACHINE.

APPLICATION FILED MAYB. 191e, RENEWED JUNE 17. 1920.

1,41 1,798. Patented Apr- 4, 1922.

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SHOE SEWlNG MACHINE.

APPLICATION FILED MAY6. 191s.

RENEWED JUNE 17. I920.

Patented Apr. 4, 1922.

17 SHEETSSHEET 6.

Win/666 W. C. MEYER.

SHOE SEWING MACHINE- APPLICATION FILED MAY 6. 1916. RENEWED JUNE 17, 1920'.

W. C. MEYER. SHOE SEWING MACHINE. APPLICATION FILED MAY 6, 1916. RENEWED JUNE 1?. 1920.

Patented Apr. 4, 1922.

11 SHEETS-SHEET 8- w. c. MEYER.

SHOE SEWING MACHINE.

APPLICATION FILED MAY 6, I916- RENEWED JUNE 17. 1920. 1,41 1,798, Patented Apr. 4, 1922.

17 SHEETS-SHEET 9.

W. C. MEYER.

SHOE SEWING MACHINE.

APPLICATION FILED MAY 6, 1916- RENEWED JUNE n, 1920 W. C. MEYER.

SHOE SEWING MACHINE. APPLICATION mm) MAY e, 1916. RENEWED JUNE 17,1920.

1,41 1,798. Patented Apr. 4, 1922,

I7 SHEETS SHEET I I. G-264 W. C. MEYER.

SHOE SEWING MACHINE. APPLICATION FILED MAY 6,1916- RENEWED JUNE 11, 1920.

17 SHEETS-SHEET l2.

amswfar' Patented Apr. 4, 1922 W. C. MEYER.

SHOE SEWING MACHINE. APPLICATION man MAY a, 1916. RENEWED was 11, 1920.

Patented Apr. 4, 1922.

I? $HEETS-SHEET 13.

W. C. MEYER.

SHOE SEWING MACHINE. APPLICATION FILED MAY 6, 1916- RENEWED JUNE 17. I920- 1,41 1,79 Patented Apr. 4, 1922 H SHEETS-SHEET H- W. C. MEYER.

SHOE SEWING MACHINE. APPLICATION FILED MAY 6. 1916. RENEWED JUNE 12, 1920.

Patented Apr. 4, 1922..

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EN NN mxm g NmQ ww mN W. C. MEYER. SHOE SEWING MACHINE.

APPLICATION FILED MAY 6. 1916. RENEWED JUNE II. 1920.

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I SHOE SEWING MACHINE APPLICATION FILED MAY 6.1916- RENEWED JUNE17,1920.

1,41 1,798. v Patented Apr. 4, 1922.

i7 SHEETS-SHEET l7- end of the-welt in proper relation to omriso STATES.

wiLLrn /r cj MEYER, or BEVERLY, MASSACHUSETTS, AssIeNon, BY MESNE ASSIGN- lATENT OFFICE.

MENTS, TO UNITED SHOE MACHINERY COB-PGRJaTION, OF PATEBSON, NEW JERSEY,

A GORI ORA IION OF NEW JERSEY.

SI-IOE-SE"WING MAGHINE,

.1 irlines.

Specification of Letters Patent.

Patented Apr. 4., 1922.

Application filed. May 6, 1916,5eria1 No. 95,893. Renewed June 17, 1920. Serial No. 389,774.

To all whom it may concern:

} Be it known that I, lVILLmM (J. MEYER, a citizen of the United States, residing at Beverly, in the county of E sex and State of Massachusetts, have inv .rd certain new and useful Improvementsin Shoeficwing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to'make and use the same.

This invention relates to shoe machines and more particularly to shoe sewing machines of the type provided with a curved hook needle and employed in sewing inseams of shoes. Certain features of the invention,

however, may be embodied in other types of shoe sewing machines, and certain features may be embodied in other machines for inserting fastenings in the parts of shoes.

One object of the invention is to provide shoe sewing machines for sewing inseazns of welted shoes with novel and improved devices for severing the Well; at a suitable dis tance from the end of the inseam after the inseam is sewn, and for presenting the free end of the welt in properrelation to the shoe at the'beginning of the sewing of the seam and holding it in position to be sewn until the welt is attached to the upper and insole by one or more stitches,

In the present embodiment of the invention the machine is provided with welt gripping devices for gripping and holding the welt, welt cutting devices for severing the welt adjacent the end of the inseam at the completion of the sewing operation, and a supplemental welt holder for holding the the shoe during the first part of the seam formation. During the normal operation of the machine the welt gripping and welt cutting devices and the supplementary welt holder are all retained in aninactive condition. As the machine is stopped at the completion of a sewing operation, the welt gripping and welt cutting dev ces areautomatically placed in an operable condition and are thrown into operation by the drawing forward of the.

operative positions. the welt gripping devices grip the welt in advance of the needle, and the weltcutting devices sever the welt in advance of the welt gripping devices at a suitable distance from the end of the com pleted inseam. F or the sake of simplicity in the construction and operation of the welt gripping and cutting devices, and in order to enable the welt to be held in proper position against the upper, close to the point of operation of the needle during the formation of the first stitch, the welt. gripping devices are fixed in the direction of feed and hold the end of the welt only until the new seam is started, after which the supplementary holder is thrown into operationand holds the welt against the shoe until one stitch has been completed. -As the machine is started at the heginnin rgof the sewingope:- ation upon a shoe, the welt gripping devices release the welt, preferably alter the needle has punctured the work in the first cycle of operations, but" before the needle retracts, and the welt cutting and gripping devices are then retraotedto inoperative positions. As the welt cutting and gripping devices are retracted thesupplementary welt holder is advanced into engagement with the welt at a point close to the point of operation of the needle, and holds the welt against the upper of the shoe. During the retracting movement of the needle, the welt is h'eld'on one side off-the needle by the welt guide and on the other by the supplementary welt holder, and is thus prevented from being drawn "away from the shoe; In order to draw the welt through the welt guide as the shoeis fed forward during the first stitch formation, and thus to obviate any drag or strain on the welttending to draw the end of the welt away from the shoe at the point where the thread through the work. the welt holder is ad vanced in the direction of feed with the shoe the shoe is fed. After the initial feed has taken place and the needle is advanced into engagement with the work for the formation of the second stitch. the supplemen tary welt holder is retracted out of operative position and remains inactive during the remainder of the sewing operation.

Another object of the invention is to -pro vide inseam shoe sewing machines with improved mechanism for advancing and reloop has been drawn tracting a work rest such as the welt guide of a welt machine or the back gage of a turn machine and for locking the work rest in advanced'position during each cycle of operations.

Other objects of the invention are to improve the construction and operation of various parts of shoe sewing machines with the view of rendering such machines more reliable, and efficient in operation.

The features of the invention will be readily understood from the accompanying drawings illustrating a machine embodying the invention in its )referred form, and the following detailed description of the constructions therein shown.

lnthe drawings, Figure 1 is a view in side elevation of an inseam shoe sewing machine embodying the invention leaking from the left side of the machine; Fig. 2 is a view in front elevation of the machine; Fig. 3 is a view in side elevation oi the machine looking from the right; Fig. at is a view-in side elevation of a portion of the machine illus trailing particularly the welt guide mechanism and certain assoclated parts; Fig. 5

p is a detail view in side elevation illustrating the tensiondevices; Fig. 6 is a sectional view takensubstantially on the line 6-6 of Fig. 5; Fi T is a detail sectional view taken substantia ly on the line 7-7 of Fig. 5;

Fig. 8 is a plan view illustrating certain parts of the tension mechanism detached;-

9 is a detail view, partly in elevation F1 and partly in section, illustratin certain parts of the tension mechanism; Fig. 10 is a detail view illustrating the tension mechanism;

certain parts of ig. 11 is a. detail view illustrating certain parts of the mechanism shown in Fig. 10; Fig. 12 is a detail View illustrating certain parts of the tension release mechanism; Fig. 13 is a view in side elevation illustrating particularly the welt grippin and cutting devices; Fig. 14

is1 a seotiona view taken substantially on the line 155-141 of Fi 13; Fig. 15 is a sectional view takensu stantially on the line 11) of Fig. 23; Fig. 16 is a sectional view taken substantially on the line 16-16 otl ig. 15; Fig. 17 is a view in side elevation illustrating particularly the driving and stopping mechanisms; Fig. 18 is a plan it tion, illustrating particularly the supplementary welt holder and its controlling mechanism and thethread gripping devices; Fig. 23 is a view partly in plan and partly in horizontal section illustrating the welt gripping and cutting devices, the supplementary welt holder and its actuating mechanism, the welt guide mechanism and the welt measuring mechanismfFi: 24 is a movement of the supplementary welt holder;

Fig. 26 is a view in rear elevation of the mechanism illustrated in F' .25; 27 is a view in side elevation strating the welt measuring mechanism; Fig. 28 is 9- view in plan of the mechanism illumin ted in Fig. 27; Fig. 29 is a detail view inside elevation illustrating the connection between the welt measuring mechanism and the ten sion release mechanism; Fig. 30 is a. detail view in side elevation illustrating. portion larly "the thread gripping and cutting devices; Fig. 31 is a detail plan view illustrating the parts shown in Fig. 30, with the portions of the frame to which the are attached omitted for the sake. of clharness; and Fig. 32 is a view in front elevation of the construction shown in Fig. 30.

The machine illustrated in the dra-wingfl is a welt shoe sewing machine the parts of which are constructed and arranged for sewing the welt and upper to the insole oat a lasted shoe. The machine is provided with a curved hooked needle arranged to enter the between substance of the insole team the outer or marginal side, so that the chain of stitches is laid on the welt, and a curved awl arranged toenter the between substance of the insole on the channel side, a thread arm alooper, a takeup, an auxiliary take up, and a welt guide. These parts have the same general construction, arrangement and mode of operation as the corros. ondin parts of the machine illustratcdan descri ed in the patentgranted to the present applicant, No. 1,059,380, dated April 22, 1913. y

The machine is also provided with a tension governor by which the tension on the thread is automaticall varied with any change in the speed 0 themachine, with locking mechanism for locking the tension wheel from rotation during the stitch setting stroke of the takeup, and with tension release mechanism for relieving the thread of tension upon stopping the machine. The tension mechanism has the same general construction and'mode of operation asthc tension mechanism disclosed in the patent granted to the present applicant, No." 1,160,: 936, dated November 16,1915, except that there is no variation in the tension during a c cle of operations.

eferring to the drawings, and more particularly to Figs. 1, 2, 3 and at, Qindicates the curved hook needle secured in the usual manner to' a needle carrier 4: mountedfto oscillate upon a hollow stud (5 (see Fig. 22). The needle :arr1er 4t is connected by means of a link 8 (see Figs. 3 and i) to one arm of a bell crank lever 10, the other arm of which is connected by a link l2 to a lever 14 pivoted at 16 at the rear of the machine frame and operated by a cam groove in a cam disc on the main shaft 1.8 of the machine.

The needle guide 20 is of well known construction, and is secured to or formed integral with a short shaft 22 journaled within the hollow shaft upon which the needle carrier is mounted. The needle guide is actuated positively from a cam actuated lever 24.- and a link 26 connecting thelower end of the lever and an arm 28 secured 'to the outer end of the shaft 22. a

The awl 30 of the machine illustrated in the drawings is curved in the arc of a circle of somewhat smaller radius than that of the needle and is mounted tooscillate on an axis slightly below and to the rear of the axis of the needle. The awl is clampedtc an awl carrier 32 which is pivotally mounted on a stud 3 L projecting from a block mounted upon a laterally movable feed member or lever 36 by which lateral movements are imparted to the awl to feed the work. The awl carrier 32 is connected by means of a link 38 (Figs l and 4) to one arm of a bell crank lever ll), the other arm of which is connected by means ofa link 42 to a cam actuated lever 43. The link 38 is connected at its respective ends with the awl carrier and the bell crank lever 40 by universal joints; so as to allow the awl carrier to move in the directionof feed while the bell crank is fixed or held from movement in that direction. a

The channel guide, indicated at so, is con structed and arranged to engage the channel of a shoe sole in the usual manner, and has the usual mode of operation, that is, it moves with the awl during the feed, and also'has a movement toward and from the shoe. The channel guide is carried by the feed member 36, the guide being secured to the block which carries the stud upon. which the awl is mounted. a

The feeding member 86 is mounted so as to be capable of moving laterally to actuate the and and channel guide to feed the work and. to return these parts to'their initial po sitions after the work is fed. To this end, the feeding member 36 is mounted to slide upon its pivot stud 48, which is secured at one end in the frame of thermachine, the

projecting portion of the stud being somewhatlonger than the bearing portionof the feeding member which slidesuponthe stud to allow for the slidingmovement of said member. The lateral movements are imparted to the feeding member by means of an actuating lever 50 (see Figs. 2 and 3) pivoted at 52 on the frame of the machinerand having two parallel arms 5-ta11d56. The connectionbetween the lever 50 and the feeding member 36 consists of a pin 58 clamped in a slotin the arm of the lever. and extending; into a groove in the projection (50 on the feeding member. By adjusting the the pin in the slot in the arm (at, the feeding movements imparted to the feeding member 86 may be varied. to give the desired length of stitch. The arm 56 of the lever 50 carries a cam roll 57engaging in cam groove in a cam diskmounted on the main sh'aft 18 whereby oscillating movements are imparted to the lever to rccipro cate the feedingmember 36 longitudinally of the stud 48. To impart a slight inward and outward movementto the chahnel guide,

so as to cause it to release theworir uponits return movement in the direction-of feed, the feeding member 36 is extended upwardly and rearwardly beyond itspivot, and carries a cam roll 62 engaging a cam groove in a cam disc mounted'on the main shattlS of the machine. a

The thread armof the machine is indicated at 64;. This arm is secured to the lower end of a shaft 66 (see Figs; 1, 2, 3 and l). mounted in the frame of the machine at a slight inclination to a the vertical. To the upper end of the shaft issecured a laterally extending arm 68 which is connected by means of a link 70 to a' cam actuated slide 7:2 mounted in guides in. the frame andcarrying at its rear end a cam roll 74 engaging in a cam groove'in a cam disc mounted on (the main shaft.

' s' case a ,zinc consiss 1T610036I'1 indi t l t76 l t of an arm clamped at its upper end to a block or sleeve 78 mounted toslide laterally and to oscillate on a hollow stud St) secured to the frame of the machine. Lateral sliding movements are imparted to the sleeve 78 by means of an arm 82 secured to the forward end of a horizontal rock shaft 8st, and provided at lower end with a roll 86 engag ing in a vertical slotin the sleeve. This connection between the arm and the sleeve permits the sleeve to oscillate on the stud 80 without interfering withthe connection between the arm and the sleeve. The rear end of the rock shaft 84: is provided with an arm 88 having a cam roll 90 at its upper end pin 96 which connects the slide 92 with the arm 9i is of sufficient length to permit the