US940637A - Sole-sewing machine. - Google Patents

Description

G-ODD'UD LE SEW G MACHINE.

1; FILED AUG. 31, 1900.

APPLIGAT 4 SEEBTS-SHEET 1 2 T E 11.5 H S s Patanted Nov. 16

4 SHEET 0 0 9 11 ML 3 HG .IHU H M DM D G E nvNn G W F I N L S m EA 0 SI L P P A L. GODD'U.

SOLE SEWING MAGHINE.

I v/ i JLJW? L. GODDU.

6133 SEWING MAGHIIiB. Arm-manor; FILED AUG.31, 1900.

Patented Nov. 16,1909.

4 SHEETS-SHEET 4.

UNITED STATES PA ENT oFFIoii.

LOUIS .GODDU, OF WINCHESTER, MASSACHUSETTS, ASSIGNQE. TO GODDU SEWIN MACHINE 00., 0 1? PORTLAND, MAINE, A CORPORATION OF MAINE SOLE-SEWING MACHINE.

Specification of Letters Patent.

Patented Nov. 16, 1909.

- Application filed August 31, 1900. Serial No. 28,624.

To all whom it may concern:

Be it known that I, LOUIS GODDU, a citizen of the United States, residing at Win Chester, in the county of Middlesex and. State of Massachusetts, have invented cer tain new and useful Improvements in Sole- Sewing 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 arttowhichit. appertains to make and use the same.

' The present invention relates to sole sewing machines of the lock stitch type and has for its objectto improve the construction and arrangement of certain parts of such a machine whereby the parts are better a dapted to cooperate with each other to perform their inter-related functions, and the machine a whole is improved as to construction and mode of operation. I

More particularly my invention has for its object to improve the construction and arrangement of those parts of a shoe sewing machine which constitute the stitch forming mechanism, and those devices which cooperate with the stitch forming mechanism in producing the seam.

With this object l1; view my invention consists in the devices and combinations of devices hereinafter described and claimed.

[11 the accompanying drawings, l have shown my invention as applied to the machine disclosed in my United States Patent, No. 581,817, dated May 4, 1897, but it is to be understood that my invention is not limited to suchapplication but may 1 applied to other shoe scwin machines without dcpartmg from the spirit tl'icreol'.

Referring to the drawings, Figure l is a sectional view of the machine described in the patent above referred to modilied ac- ,cording to my present invention, the view corresponding to Fig. 3 of the said patent, Fig. I is a detail view of a locking device to be referred to, l ig. 2 is a scctional view on the same plane as Fig. l, but looking in the opposite direction, l ig. 3 shows the aw'l segment, the awl, and the rock-shaft to which it .is fixed, detached; Fig. l shows the needle segment, the needle, and needle-guide. dotached, Fig, 5 shows the stop for the needle guide; Figs. ('5, 7, 8 and 9 show details of the shuttle, the work-support, and some other parts together with stock lying on the work support, said figures illustrating the fox-ma tion of the stitch; Fig. 10 is a top'view of the work support, with part of the looper to represent. its path when feeding the needle with thread; Fig. 11 is a View in front elcvation of the thread winding mechanism, and, Fig. 12 is a sectional View showing details of such mechanism.

The frame of the machine, the driving shaft journaled therein, the arrangement of cams on the driving shaft, the mechanism for rotating the shuttle, the awl and needle devices with their actuating mechanisms and the mechanism for actuating the take-up arm are the same as in'the machine disclosed in Patent #581,817 above referred to, and a detail description thereof is therefore deemed unnecessary in this application.

The shuttle case it is substantially the same as in the patent referred to, and is supported and actuated in substantially the same manner. In my present invention, however, the chuttle case is arranged; to receive a bobbin spool, and the thread is led from the bobbin, and'guided and controlled in its passage to the work by certain novel devices which will now be described. The face plate or Tap of the shuttle is provided with the hollow stud adapted to be slipped over a. stud ir" extending from the end it of the shuttle and to form a bearing for the bobbin spool is. The face plate has a block 26 rigidly secured thereto so as to form a part thereof, provided. with a boss having formed therein a. recess, see Fig. 7, to receive the free end of the stnd If. A spring fir secured to the faceplate by the screw 12* passes through an opening in the side of the block 26 and engages a groove 70 in the end of the stud 70* to hold the face plate in place. At. the top of the face plate and projecting baclnvardly into the shuttle case is an arm A provided with a thread also is an arm h 'provided with a thread opening and a groove leading from the thread opening to a groove n the front face of the. face plate. DlIOt I; oelow this groove and at. the upper end of the block 26 is aprojeo tion' 28 having -a thread groove in its side, and arranged to press against the thread in said groove is a tension spring k secured to the face plate by the screw k The free end of the spring it bears against a shoulder foru'iod by a projection from the face plate above the thread rest 28 and the spring can be adjusted to bear with more or less its will. simttlehrea-i'l passes from the bobbin i through the opening in the arm it along the gmoves in the arm h" and upper portlon of the i ii rot hetvvicn the block 26 and the projection on the face plate, along the groove-in the nose the Work Ierein provision is made as in the patent 'rred. to for measuring off from the bob- '.u in he shuttle a suiiicient portion of head r the in stitch, but herein the do irun'uvrtai in measuring off the tier materially from those described patent, Herein the measuring dei "boivn as a linger l scooped out at nor side at iii, to form an edge 01' lip resented in section, Fig. 7, the exi? the measuring device being 'tion that when the linger ce plate under the tension spring 70 the opening 2'? across the space it loo ii) is moved, act on. the Siltlllil3-tlll6[tl, While the latter is stretched between the nose and stock, and ".vili ineasi e oh from the bobbin the thread turn on the end. 17 oi a lever 18 pivoted at l" i i the head. oi the machine.

e upper arm oi the rocker 16 receives a l? adcd bolt l'i, the shank of which is sinroundcd by a spring 18,21 threaded hollUW out l 5)- being screwed into the rocker to conunsaid spring and force said bolt against a flattened post of the end 17 of the lever, see Fig 1, said maringprcssed bolt '1. constituting a retaining device to n'laintain the rocker and its measuring linger in correct working position, yet whenever the o wra r desires to turn the measuring linaway from the cap of the shuttle, to repiace the shuttle-thread, or for any other purpose, he may by striking the rocker, turn it on the projecthm l7, the head of the bolt at such time slipping oil from the said l1atlone l face The rear end oi this lever 18 is prov-him? with an anti-friction roll 21 held thereon loosely by a screw 30, see Fig. l, the

I out said roll running against the edge Sam 31, herein shown as connected with r. hing part oil" the toothed gear h. lever 18 is acted upon by a spring 32,

it vvnl enter the notch i and,

which keeps the roller 21 against the cam 31,

a second tension sheave 0 the studs carry- 7 lug said sheaves being all mounted on the take-up lever m. The tension disks 0 and o" constituting tension devices, are located close to the center of motion D of the take up lever, so that their Weight does not affect the momentum of the take-up. The tension exerted on the thread extended over said sheaves 0 and 0 may be Varied at Will by means of a nut 01, on a stud n extended from said take-up lever, and arranged to press against a spring n which bears upon the central parts of the said tension devices, so that by turning said nut the tension maybe regulated as desired.

The noodle-thread is taken from the tension wheel or disk 0 over a loose sheave a of very light weight, mounted on a stud n at the end of the take-up lever, the said, sheave being retained on the-said stud by a wire lip n, and thence the thread L is tended over a sheave n on a stud n fixed to' the frame-Work, or to a steam heated chamber n? forming part of the framework, and thence the thread is shown as led through a groove n at the underside of the work-support f, said thread passing from said groove through an opening it and meeting the stock through. the hole f in the top oi the work support.

'lhc take-up arm herein described, being made oi thin metal, is very light in Weight, and by mounting the tension devices close to the center of motion of the actuating shaft l), the strains due to momentum, which said iake up has to overcome in rapid movcmoot, are reduced to a minimum, and further said arm ismade to reciprocate against a heated box if, so that said arm, the sheave n", and tension devices are kept properly heated so that the war; will not stick. vIn the vibration of this arm, the sheave or roller 0 acts at each movement of the sheave n" to-' ward the work support, to draw from the wax pot a suiiicicnt length of thread to be used in making a stitch in stock of maximum thickness.

in operation the take-up is actuated in Ibo same time, and order with relation to [be rotating shuttle to take-up the loop of nrodlc thread, as provided for 1h said patent, but herein the tension deviceso and 0? take the place of tworolls carried by the take-up in said patent, and the extremity of the arm has but a very light sheave.

The location of the heavier tension de Vice near the center of motion D of the take-up arm, and the addition to the take-up adds very materially to the effectiveness of the machine, for the reason that the momentum generated in the take-up arm which has to be overcome at each stroke, is very materially lessened, and the speed of the machine may be increased without fear of breaking the take-up lever.

The mechanism of Patent No. 581,817 for locking and releasing the p1'esserfoot has been slightly modified as shown in Fig. 1 by omitting the ratchet plate and pawl for positively raising the presser foot during the feeding movement of the awl. ()t'herwise the construction and operation are substantially the same as in the machine of the patent.

The shank of the work support f has a groove n for the thread If, and at the upper end of said groove a passage. n, the lower side of which is inclined as best represented .Thn, in rigs. t) and 9, the and inclined side piesenting a hard finish smooth edge by inserting in it a steel wearing face a composed as shown of a round piece of steel wire a hardened. such face withstanding the wear of the thread and obviating the otherwise frequent renewal of work supports. The wearing face is inclined and receives upon it the thread 2, and the latter under the strain put upon it ingthe process of making, stitches has a tendency to ride down the incline, and especially so when the Work is fed over the wm'k-su1' port by the awl as repre ented in the detail Fig. 9.

The groove of in the shank of the work-' support is entered by a closure 0, shown as a lever pivoted at, c. the upper end of said lever being extended above said passage, and shielding the waxed thread, so that the wax cannot possibly get on the face of the worksupport and contact with the upper of the shoe being stitched. The lower end 0* of this closure c may be struck by the operator whenever it is desired to get access to the thread in the passage n or to seize the thread and draw it through the passage '11 in threading up the machine. The closure has cooperating with it a. suitable locking device 0 it being shown as a screw having the .ululcrside of its head rounded to enter a slot in the closure, the edges of said slot. being beveled, see detail Fig. l. The screw is surrounded by a spiral spring, and the nut on the end of the s rew acting on the end of the spring regulates the force of the spring in pulling the underside of the head of the screw into the slot, so that the said closure is held frictimlally either closed or opened.

The looper (Z is :albstantially straight, and it has near its cud a hook d, and the looper is carried by a lever (P so mounted as to have a substantially universal motion. The lower end of the lever d has a hollow hub d which is slipped over a'stud cl extended from a hollow sleeve d mounted on a stud d fixed to the head. The sleeve (Z is retained on said stud by a set screw d while the sleeve d is retained on the stud (l by. a similar.

screw. The lever (5 has a backwardly extended stud d", which engages a cam surface formed on the side of the disk H, the said cam surface being of a shape to turn the lever d about the stud d as a fulcrum. The lever cl has a roller or other stud d,.which is borne against the cam shaped periphery of the disk H, bya spring d acting on a stud d extended from the said lever, the periphery of said disk H imparting to the lever a movement about the stud d. The spring (Z also acts to hold the stud 03 against the cam surface on the face of the disk H.

In operation the looper cl starts forward, so that its hook passes the needle thread at its outer side, said needle thread being extended from the passage a to the opening f in the throat of the work-support, and between said thread and the Worksupport, and

the hook of the looper engages the said thread and carries it up the inclined part of the passage a into substantially the position shown in Fig. 9, and thereafter the needle Z)? of the needle, the looper is immediately moved forward to release the loop of needle thrcad drawn out by it, giving up the loop so held by it to the needle as the latter rises through the stock. The looper by its movements aiulaction furnishes sufficient length of needle thread to the needle to enable the latter to rise and draw the loop through the stock without the renderingof the thread through the hook of the needle, thus fraying it. i

lleretolkirc it has been customary to wind the thread to be used in the shuttle on separate tln'cad-windiiw' machines, but herein I have provided meansconnected with the sewing machine and wax pot for winding the waxed thread onto the spool-so that it may be readily applied to the bobbin when exhausted, the thread being wound during the regular operations of the machine.

The righhhand end of the main shaft A of the machine will havesccured to it a fast pulley or hand-wheel and a loose pulley B, all as in said Patent No. 581,817. -Herein the loose pulley is chambered at its inner side to receive a pulley r secured to a short shaft A mounted in a bearing at one end of a lever A, said lever having a sleeve-like hub A which is extended through a bearing A projected from an upright A mounted on the plate A forming partof the head of the machine. The sleeve A receives upon its opposite end a lever A having a cam surface 7' against which operates the end 1" of a lever r pivoted at T The shaft A has fast upon it a belt wheel A which receives a belt A which is extended over a belt-wheel A", fast on a shaft A within the sleeve A The end of the shaft A outside of the belt wheel is provided with a screw threaded portion on which is screwed the disk A and a slightly reduced portion forming a bearing for the spool 7c.

The spool is heldon the shaft by means of the flanged block A, the screw threaded stud A of which engages a threaded hole in the end of the shaft. By turning the disk A the spool is clamped with any desired friction between the disk and the flanged block A The disk A also serves as a convenient means for forcing the spool endwise olf the shaft when the flanged block A has been removed. I

The lever A has pivoted upon it at w, a lever a forming part of a thread cutting mechanism, said lever having attached to it a notched block u ,.which receives in it the short arm n of a let-ofl' lever n pivoted at w", and the lever u is acted upon by a suitable spring a" to actuate the lever 11 and throw it tmvard the cutter or blade u fast on a. projection a of the said lever A.

Whei'iever the thread mass wound upon the projccting end of the rod A is of the proper size to substantially fill the bobbin, then the outer coils of the thread will meet the, flattened end of the lever n and will turn it so thatits end utretires from the notch v/F, letting the spring u immediately actuate the lever u", causing the latter to descend upon the thread passing between it and the blade n, and cut the same off.

The waxed thread to be wound on the spool to be applied to the shuttle, is taken from one. end of the wax-pot l, and is led over suitable tension wheels, and throu h the spacebetwecn the open cutting mee anism described, to the winding splndle or rod A V The belt A and the winding spindle may be left at. rest until when it is desired to Wind a spool for the bobbin, and at such time the to save much of his time heretofore employed in winding thread for the shuttles. Having described my invention, what I claim and desire to secure by I etters Patent is l. A lock-stitch shoe-sewing machine having, in combination, a needle, a shuttle, means for actuating the needle and the shuttle to interlock the needle and shuttle threads, a depending nose on the face of the shuttle provided with a forwardly-open thread guiding groove, and a tension device in the face of the shuttle located above and substantially in line with said groove, the tension device comprising members engaging the thread laterally but not in front, so that by drawing the thread downwardly it may be at once drawn into position in the tension device and the shuttle nose,-substantially as described.

2. A lock stitch shoe sewing machine, having. in combination, a needle, a shuttle,

means for actuating the needle and shuttle to interlock the needle and shuttle threads, a cap to close the open faceof the shuttle to inclose the shuttle thread, said cap having an extended grooved nose and being provided with a thread rest above said nose projecting at one side of the shuttle thread, said thread rest being inde )endent of the nose and at a distance therefrom and a tension spring to act on the shuttle thread lying on the side of thesaid rest, substantially as described. i

3. A lock stitch shoe sewing machine, having, in combination, a needle, a shuttle, means for actuating the needle and shuttle to interlock the needle and shuttle threads, a cap to close the open face of the shuttle to inclose the said thread, said cap being provided with a projecting thread rest,,a tension spring to act on the shuttle thread lying on said rest, and a projection from said ,capfor supporting the tree end of said spring, substantially as described.

4-. A. lock stitch shoe sewing machine, having, in combination, a .needle, a shuttle,

means for actuating the needle and shuttle to interlock the needle and shuttle threads, a cap to close the open face of the shuttle to inclose the said thread, said cap having an extended split nose, an openlhreac guide aboveand independent of said nose in which the thread may be drawn, and a thread rest independent of said thread guide and nose to sustain the shuttle thread, and a spring to act on the thread lying on said rest, to determine its tension, substantially as described.

5. A lock stitch shoesewing machine, having, in combination, a needle, .a shuttle, means for actuating the needle and shuttle to interlock the needle and shuttle threads, said shuttle being provided with a notch at its face, a measuring device composed of av finger to act. on the shuttle thread opposite .ing the mounted, means and then on said port for said finger-carried by said lever, and means for actuating the lever, substantially as described.

6. A look stitch shoe sewing machine, hav ing, in combination, a needle, a shuttle, means for actuating the needle and shuttle to interlock the needle and shuttle threads, a measuring device comprising a-fmger to act on the shuttle thread and extending in front of the shuttle, mechanism for actuatfinger, and connections between the finger and its actuating mechanism whereby the finger may be-moved fromin front of the shuttle, substantially as described.

7. A look stitch shoe sewing machine, having, in combination, a needle, a shuttle, means for actuating the needle and shuttle to interlock the needle and shuttle threads,

said shuttle having at'its front sideya notch,

a measuring device composed Off-"8 finger having an edge or lip to act on the shuttle thread opposite said notch, a rocker carrying saidfinger, a lever on which "said rocker to hold saidrocker and in operative position, and

measuring device means to move said lever-to cause the said measuring device to depress the thread into said notch, substantially as described.

8. A lock-stitch shoe-sewing machine having, in combination, a needle, a shuttle, means for actuating the needle and shuttle to interlock the needle and shuttle threads including 'a shuttle driver and an actuating shuttle shaft, a cap to inclose thread in said shuttle, said cap having a depression which is crossed by the shuttle thread, a measuring device having an edge or lip to act on. theshuttle thread, a lever carrying said measuring device: fulcrumed outside the periphery of the shuttle and a cam moved in unison with said shaft to operate said measuring device once for each stitch, substantially as described.

9. A shoe sewing machine, having, in combination, a needle, a looper, means for actuating the needle and looper, a Work support having a groove to receive the thread on its way to the needle and a closure for said groove to prevent the Walt on the thread getting on the outside of the Work support, the upper of the shoe being stitched, substantially as described.

10. A shoe sewing machine, having, in ':ombination, a need e, a looper, means for actuating the needle and looper, a work sup port having a groove to receive the needle thread on its way to the needle, a closure for said groove to prevent the war; on the thread notch, a lever, a laterally movable sup- I having, in combination, a needle, a

getting on the outside of the Work support and then. on the upper of the shoe being stitched, and means to hold said closure shut or open, substantially as described,

11. A look stitch shoe sewing machine shuttle, \{35 means for actuating the needle and shuttle to interlock the needle and shuttle threads, l a cap to close the open side of said shuttle, a hollow stud projecting from said cap to form a bearing for the bobbin, a stud on the shuttle arranged to enter said hollow stud, said cap having a recess at its inner side e2? tending part way only through the cap to receive the outer end of the shuttle stud, and

a locking device mounted on the cap 7a ranged to engage the shuttle .d, substuntially as described.

A lock stitch shoe sewing l having, in combination, a need a a, means for actuating the needle and tie 8G to interlock the needle and shuttle threa is, said shuttle having avstud notched near its outer end, a cap to close the open side of said shuttle said cap having at its face a boss recessed at its rear side to fit aid stud, said boss bein slotted at its a;

the face of the cap, and a lock carried by said cap and extended the slot in the boss to engage said s stantially as desc bed, so

13. A loch o having, in combu means for actuating to interlock the needle 1; said shuttle having a stud in, outer end, a cap to close t said shuttle and a locking on said cap and arrang l notched end of said stud, subs scribed. ice

i l. A. look stitch shoe sewing machine, having, in combination, a needle, a shu lc, means for actuating the needle and shuttle to interlock'the needle a1 7 shuttle threads, a stud projecting from the shuttle and provided with a notch near its outer end, cap to close the open side of said shuttle provided with a slot, and a locking d vice'carried by said cap and ezrtending t rough the slot to engage the notch in said stud, sulr stantially as described.

in testimony whereof I afiirc my signature, in presence of tvvo witnesses.

'W'tnesses Henson VAN l lvrnnn, Anrnnn l'l, Hinnnnrn,

orrections It is hereby certified that in Lettei's Petent No. 940,637, gran ted November 16, 1909,

uponthe application of Louis Goddu, of Winchester, Massachusetts, for an improvelnent in Sole-Sewing Machines, errors appear in the printed specification liequ'ii'ing correction its followsz Pege 1, line 77 the Word ehuttle should le ad fi l l iattle, and same page, the line 97 should be canceled; and that said Letters' i atent sheuld be readwith these cori'eetione therein that the same may conform to the record of the ease in the Patent Office.

Signed and sealed this 21st day of December, A. 1)., 1909.

[SEAL] I 0. e. BILLINGS Acting Commisszhfier of Patents

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