US239968A - Machine for sewing cordage - Google Patents

Description

5 Sheets-Sheet 1.

(No Model.)

T. J. MAYALL. Machine `for Sewing Gordrage N0. 239,968.

Patented April 12,188I

HI 1.6/.4 WM d 1 l Il Il ZW.,

NVPETERS, PHOTOLITHUGRAPHER. WASHINTON. D. Cy

(No Model.) 5 sheets-sheen 3y T. J. MAYALL.

` No. 2'39i968.

I Patented April 12,1881.

(N0 Modell) T. J. M'AYALL.

5 sheets-sheet 4;

Machine for Swing Cordage.

Patented April 12, 188114.

MPETERS. FHDTO-UTMOGRAPMEH, WASHINGTON. D C.

(No Model.) 5 Sheets-Sheet `5.

T. J. MAYALL. Machine for Sewing Oordage.

N0. 239,968. Patented April 12,1881.

N-PI'ERS. PHOTO-UTHOGAPHER. WASHINGTON, D. CA

UNITED STATES `PAT-mvfr OFFICE.

THOMAS J. MAYALL, OF READING, MASSACHUSETTS.

MACHINE FOR SEWING CORDAGE.

SPECIFICATION forming part of Letters Patent No. 239,968, dated April 12, 1881.

Application led April 15l 1880. (No model.)

To all whom @t may concern Beit known thatI, THOMAS J. MAYALL, of Reading, Massachusetts, have invented anew and useful Improvement in a Machine for Sewing Cordage to Form Shoes, and for other similar purposes, of which the following is a speciiication.

In Spain, and perhaps other European countries, it has been the custom to make solesfor shoes by winding-twisted or braided strands of hemp, jute, or other similar and `suitable ber of considerable thickness into the form of a shoe-sole, and then, by means of an eye- `pointed 4awl of sufficient length (about eight or ten inches) and of about the thickness of a common loom-shuttle spindle, to carry another similar strand of the librous material transversely through all the convolutions of vthe strand previously wound up in a flat coil to become a shoe-sole, from edge to edge, beginning at the heel or toe, and continuing these crossings near enough to each other to give the sole the required solidity the whole length of it, the cross-strands being `drawn up as closely as can be done by hand.

The object of my invention is to provide a machine, to be driven by lany suitable power, by which an attendant of ordinary intelligence can work in the cross-strands heretofore worked in by hand with the awl, as described, to produce the soles with much greater rapidity than the work can be done by hand-labor, and produce a more durable and satisfactory sole as a result.

In the accompanying drawings, which forni `a part of this specification, Figures 1 to 6 are general views of a machine constructed in accordance with the invention, Fig. 1 being an isometrical perspective view; Figs. 2 and 3, views in elevation from opposite sides; Figs. 1.1. and 5, views from opposite ends, and-Fig. 6. a plan view. Figs. 7 and Sare sectional views in planes at right angles to each other, showing the bed for containing the sole and the parts in immediate connection with said bed; and Figs. 9,10, 11, and 12 are views, in plan `and cross-section, of a bundle of cordage loosely wound into a sole and of a finished sole, respectively.

The same letters indicate like parts where they occur on all the figures.

The various devices are supported in a suitable frame, a, and power is conveyed to adriving-shaft, b, by a belt running on a pulley, a', which is loose on the shaft, but can be made to engage the fixed wheel a2 so as to revolve it and the shaft b when required.

The shaft a communicates motion, by means of the bevel-gears c d, to cross-shaft e, which operates the workin g parts of the machine, and

which is therefore designated `herein as the for locking that carried by the eye-pointed' needle, is operated by the cam f, fixed on the main shaft c. This cam has a groove of irregular shape, as shown in Fig. 3, in which works the roller c2. The roller is carried at the end of a guide-lever, f', which is pivoted at the end c3 tothe machine-frame, and is connected at its outer end, by the linkfz, with an arm, f3, of a rock-shaft, f4. This rock-shaft is supported in bearin gs parallel to the driving-shaft b, and on its opposite end is fixed an arm, f5, which is jointed by a slot-and-pin connection to the shuttle-carrier f7, so as to reciprocate the same. The shuttle-carrier is guided by a slotted guide-piece, f8, the upper surface of which is hollowed to form the race for the shuttle f 9. The race is provided with a cover, t, which is at t provided with a hole for the passage of the needle.

The needle-bar h is supported at its rear end by and moves in a dovetail groove in a block, h', which rests on one of the top rails of the frame of the machine. The forward end of the needle-bar rests on a block, h2, which, in turn, rests and slides on a beam, h3, below it, which beam is supported in its proper positionin the machine by the rods or bars h?, themselves suspended from the under side of the top rails of the machine. From the forward end of the IOO needle-bar h a guide-loop, h5, reaches down and around the beam h3, and, sliding on it, keeps the forward end of the needle-bar in its proper alignment. In the forward end of the needlebar, and in direct alignment with it, is firmly ixed an eye-pointed needle, j. This needle is ordinarily about eight or ten inches in length and about an eighth to three-sixteenths to one-quarter of an inch in diameter. The eye of this needle will admit a strand of twisted or braided fiber in size about equal to the diameter of the needle;

Above the needle-bar, and restin gon a standard supported by the frame of the machine, is a spool, j', for the fibrous strand to be carried by the needle, and on other similar standards tension-pulleys, (markedrespectivelyjzand j3,) around which the strand passes.

On the needle-bar h is iixed an adjustable arm, s2, which reaches upward between the spool j and the tension-pulleyj2 to about half the height of the tension-pulley jZ, and is provided with an eye through the upper part of it, in which the strand of fibrous material to be woven into the sole is carried. When the needle-bar moves backward, withdrawing the needle from the sole, this arm draws the strand back with the needle, thereby bringing the strand from the shuttle-carrier on the other side of the sole into and part way through the sole, leaving the looping -point of the two strands about in the middle of the sole and drawing the vcoiled strands compact] y together. The backward movement of this arm also serves to take off from the bobbin j enough of the strands to make the next crossing through the sole.

On the outer side of the needle-bar, extending about one-third of its length, is fixed a slotted plate, i, in which are set two movable studs, i and i2, which have motion with the Y needle-bar and strike the inner end of an elbowlever, s, carrying it forward and then backward. y a

The elbow-lever s is pivoted on a pin, t3, set in the top of the rail of thesupporting-frame,

with the outer end of the lever taking hold loosely of a lever, q, having for its fulcrum the shaft p, said lever q carrying a pawl, q', loosely attached to it. This pawl, as the lever q is moved by the motion of the elbow-lever s, engages in the teeth of the ratchet-wheel g2, which is also on the shaft p, and which is partially rotated by each traverse of the needlebar h.

The shaft p, supported in suitable bearings on the frame of the machine, extends across it Vparallel to the shaft b, and on the other-end of it is fixed a pinion-gear, o. This pinion-gear works into the under side of a toothed rack,m. This toothed rack engages and carries forward and backward the bed m5, upon which the coil of cordage to be woven for a sole is secured and held while it is being woven by a clamping-plate. This bed and clamping-plate, containing the coil of cordage to be formed into a sole, is by Vevery movement of the shaft p imparted by the elbow-lever s carried forward, so that the next forward movement of the needle will penetrate through the coil of cordage at such distance from its last crossing as may be desired, the feed being regulated by the distance between the studs i and/2. When the transverse sewing of the cordage is completed the-pawl q is raised from the ratchetwheel g2, which allows the shaftp to revolve freely, and the toothed rack mis pushed back to its starting-point by the operator, and the pawl q being dropped to its place, the machine is again ready for operation upon another coil when supplied.

The machine is putin motion, when ready for work, by pressing the pulley a2 into the pulley a with such force that the surfaces coming in contact will so engage each other that the motion of 8 5 the pulley a is communicated to the pulley a2, which, bein giirmly fixed on the shaft b, puts the machine in motion. The pulley a2 is driven into the pulley a by the operator turning the wheel o sharply to the right. This wheel is on a shaft, 02, which extends across the machine below the top rails, parallel to the main shaft c, and carries firmly fixed on it just inside of the wheel o an elbow-lever, 03, one end of which is connected to the lower rail of the frame of the machine by a spiral spring, 04. This spiral spring, being left free to act on the elbow-lever o3, turns the shaft o2 over to the left. On the further end of the shaft 02 is a disk to carry an eccentric-pin, o6, which works in a slot in the elbow-lever o5. This lever is pivoted to the machine-frame, and its upright arm bears against the side of loose pulley a2, so that as it is pressed in one direction or the other the wheel is pressed into or released from contact with the fixed wheel a.

By securing the right-hand arm of the elbow-lever o3 with the swinging hookog, which is pivoted on the upper side of the top rail of the frame of the machine and held to the arm of the elbowlever by a light spring, o7, the two pulleys a and a2 are heldin contact with each other until the hook 08 is disengaged. When this disengagement takes place the lever o3 is released, the spring o4 draws down the other arm, turning the shaft- 02 to the left and moving the lever o5 away from holding the two. pulleys a' and a together, when they instantly become disengaged andthe motion of the machine ceases. This occurs when the bed7 which carries the coil of cordage to be united together in the manner described, has been moved by the feed mechanism the length of the sole, when an adjustable stop, m', on the rack m strikes the straight end of the swinging hook o8 and, overcoming the power of the spring o7, disengages the hook from the elbow-lever o3. the machine is automatically stopped when the whole length of the sole has been sewed. The stop on the rack can be adj usted for any length of sole which can be made on the machine.

TOO

IIO

IIS

Thus the motion of The Hat bundle of lcordage which is to make the sole is wound in `an oblong form, a little narrower toward the end which is to be'the heel, and approximatingto the shape of an or- Said flat bundle is then cured thereon by a clamp-plate, e, Figs. 7 and 8, which plate is held down upon said bundle by turning down the nuts on the swinging screws m3 and m4.

The ends of the bed are formed by the `angle-pieces mmand m11, of which the former is stationary and the latter is adjustable, in order to `accommodate soles of different lengths.

Theilat bundle of cordage which is to make a sole is securedet one side by the cover t, which is over the raceway in which the shuttle moves. On theother side is the needleguide lr, to which is attached an arm, kt, extending along t-he coil of cordage. The needle-guide is supported on two arms, j and j, which, in turn, slide in holesl through supporting-blocks 7c and 7a2, and are firmly affixed to a plate, 7c3, depending from the under side of a lever, o, which is pivoted on the upper side ot' the middle rail of the frame of the machine. The end of this lever toward the operator is furnished with a handle for the operator to grasp, and the other end is connected by a spiral spring, o', to a block, '112, which is fastened on the top rail of the frame near the bevel-gear d. The natural operation of this spiral spring 'v' is to draw the shorter end of the lever/v toward the block c2, thereby pressing the needle-guide la and arm 7c* against the edge of the coil of cordage as it lies in the bed mi. Thispressure is removed, when desirable to do so, by the operator pushing the haudleof the lever o to the left and securing it by the latch e3, which is firmly fixed on the inside of the top rail of the frame of the machine.

n' is a table affixed to the frame of the machine, in which, under the cover t, is an opening to receive the block f, in which is the race for the shuttle f. This shuttle contains a ibrous strand similar to that carried by the needle. This strand, which is wound on a suitable bobbin or spool, is to interloop with that carried by the eye-pointed needle, and so interlooping is drawn by the backward motion of the needle-bar and the arm s2 into the coil of cordage, the looping of the two strands being linally leftat or near the middle of the flat coil of cordage.

All the several parts of this machine havihg been mentioned and referred to by letters marked on the drawings, and their uses and relations to the whole, as well as their separate functions, having been set forth, l will now describe the operation of the machine as a whole.

The flat oblong coil of' cordage is secured in the bed prepared for it. The spoolj is provided with its proper supply of fibrous strand, and the spool in the shuttle is also supplied with strand. These two strands are to be sewed through the width of the dat coil of being so arranged that they will at the proper movement of the machine interloop each other,

and everything being in place ready for work, the operator turns the wheel o sharply to the right, catching the end of the upper arm of the elbow-lever ointo the hook-lever o.Y This causes the pulleys a.' and a2 to engage each other and revolve the shaft b, which, through the pinion c and gear d, puts all the parts in their proper order of motion. The traversing of the stud g in the curved openingthrough the broad part ot the needle-bar carries the needle-bar forward, driving the needle with the strand of liber in its eye through all the convolutions of cordage, piercing through the middle of all, and carrying the eye of the needle au inch or more beyond the edge of the tlat coil. The motion, continuing, withdraws the needle a little, which motion forms a loop with the strand in its eye. Here the motion of the needle-bar ceases for a moment, the form of opening through its broad part being such as to permit the traversing of the stud g in it withoutgivingitmotion. Whiletheneedle-bar is thus for a moment at rest, the cam f moving, the stud e2, traversing its irregular groove, moves the rockin g shattf4 and carries the shuttle, with its bobbin of fibrous strand, through the loop formed by the needle. As soon as the shuttle has passed through the loop the needle-bar, resuming motion, withdraws the needle and the loop it made on the other edge of the (to be) sole, bringing the strand from the shuttle, which passed through the loop with it part way, and drawing the whole np tightly, the point ofthe needle being quite outside of the guide-plate which presses the edge of the sole. The feed mechanism described is then moved by the stud i2 striking the elbow-lever s, carrying the bed m5 forward the distance which is desired between the crossing strands. Here one revolution of the main shaft has been made; another begins, and ends with the results described. The motion continuing, the sole is sewed thc whole length, as described, when the adjustable .stud on the rack m strikes the end ot' the hook-lever o8, disengaging its hold on the elbowlever, and the machine stops'to receive another coil to be united.

Having thus fully described the construction and operation of my machine, I claim new and my invention- 1. A machine for making soles of the character described, comprising, in combination with a bed-plate and clamping-plate for receiving the bundle of cordage llatwise between them, an eye-pointed needle, a sh uttle and operating devices for inserting binding-strands from side to side through the bundle of cordage, and mechanism, as indicated, for feeding the same intermittingly in the direction of its length, substantially as set forth.

ICO

'2. The bed formed byabed-plate, clampingneedle-guide, said guide and cover being on plate, and an gle-pieces or upright projections opposite sides of said bed-plate, substantially carried by the bed-plate and capable of adas described. justmentto regulatethedistance between them, 5. In a machine of the general character de- 5 substantially as described. scribed, the combination, with the eye-pointed 2o 3. The combination of a bed-plateaclamp needle, shuttle, and operating mechanism, of ing-plate, a guide pierced with a needle-hole the bed, feed mechanism,as indicated,for movand arranged opposite the space between said ing the bed forward, and devices, as explained, plates at the side, and a spring connected With for stopping the machine automatically when 1c said guide and serving to press the saine tothe bed reaches a predetermined point, sb- 25 Ward the said plates,substantiallyasdescribed. stantially as described.

4. Thecombinatioinwithan'eye-pointed nee- THOS. J. MAYALL. die and shuttle and operating` mechanism, of Witnesses: the bed-plate, the pieces forming the ends of' CHS. HOUGIITON, 15 the bed, the cover to the shuttle-race, and the FREDK. L. HOUGHTON.

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