US505934A - Machine for making and knotting fringes - Google Patents

Description

' (No Model.) 3 Sheets-Sheet 2.

B. ARNOLD. MAOHINE FOR MAKING AND KNOTTING FRINGES, m. No. 505,934. Patented Oct. 3,1893.

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(No Model.)

. B. ARNOLD. MACHINE FOR MAKING AND KNOTTING FBINGES, 6w.

Patented Oct. 3, 1893.

UNITED STATES BENJAMIN ARNOLD, OF EAST GREENWICI-I, RHODE ISLAND, ASSIGNOR TO THE PATENT OFFICE.

MERIDEN'CURTAIN FIXTURE COMPANY, OF MERIDEN, CONNECTICUT.

MACHINE FOR MAKING AND KNOTTING FRINGES, 80C.

SPECIFICATION forming part of Letters Patent No. 505,934, dated October 3, 1893.

Application filed December 15, 1892. Serial No. 465,217. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN ARNOLD, of East Greenwich, in the county of Kent and State of Rhode Island, have invented certain new and useful Improvements in Machines for Making and KnottingF-ringes, dad; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of knot tying mechanisms designed to tie knots in fringes, and for making fringes and like ornamental work in textile goods after being woven or othewise constructed. It is illustrated in the accompanying drawings.

Figure 1, is a top View of the parts immediately in contact with the threads that are to be tied together. Figs. 2, 3, and 4, are respectively, front, side and back views of the devices that form the loops of the knot and push the ends through in shape to draw up in a knot. Figs. 3 to 11, show different views of the details of making the knot loops and finishing the knot. Fig. 12, shows the cams that operate the knotting devices and their connections therewith. Fig. 13, shows the cams that operate the reversing hooks that arrange the threads in proper association for tying, and the presserfor holding the threads when cut loose from the hooks. Fig. 14, shows the cam and connection that operate the knives in cutting the loops on the hooks. Fig. 15, shows how a fringe may be made on the edge or across the body of a piece of finand a reverse motion of the hook back to the Referring to Fig. 1, A, represents a needle used in needle looms instead of a shuttle, for. placing the filling in the shed of a warp which is indicated by D, or this needle may be used 1 ished goods.

as a sewing machine needle, to pass the thread through the edge or body of goods already woven, and in connection with the knotting mechanism, to make a fringe or like ornament on such goods, as in Fig. 15. The

parts that receive the threads from the nee. dle A, and arrange them in groups for tying, are: a horizontal shaft 0, held in bearings 11, on the tableof the machine, a block B, having two hooks c, a, pointing in'opposite directions, on its inner end, and a gear wheel e, made fast on it just inside the outer bearing 01. A sleeve F, is fitted to slide on the shaft C, and pass through the inner bearing d, to receive a head 11, which is made fast on the inner end of the sleeve. This head H, has two cutting blades 2', 't', fastened on it, lying parallel with the shaft C, and made to project toward the inner end of the shaft, and are so placed as to slide in grooves s, .9, made in the block B and hooks c, 0, one in each hook, for the purpose of cutting off the loops of thread that are caught on the hooks from the needle A, by sliding with the sleeve F, toward the inner end of the shaft. The shaft and sleeve are partially revolved first in one direction and then in the opposite one, by a larger gear wheel H, placed underneath and engaging with the gear wheel e. A bar T, pivoted to an arm on wheel H, connects it with a cam lever N, whichhas ,a friction roll N running in a groove in the cam M, (see Fig. 13) by which the'proper motion is given at the right time.

The hooks 0, take the loops from the needle in the following order: The needle A, brings the thread'b, in over a hook c, as in Fig. 1, and the hook is turned up enough to pass back of the thread and catch it. Then the neodle draws out of the warp D,,to the left, and enters again and passes to its first position; but in the mean time the double hook has been turned ajhalf revolution, so that the other point 0, is in position to catch the thread in the needle, which it does'in the same manner as the first hook did, and then the needle again draws out, leaving a loop on each point,

first position by the gear wheel, crosses the threads of one loop with the threads of the other loop, as shown by the dotted linesj, Fig. 1. This brings each last loop of 'tlfre ad in close proximity to the third before it, that it isto tie with. Assoon as the hook crosses in the presser, the head H, is pressed inward. 1:0

by its lever 1, bar 0, lever P, and cam L, Fig. 14, and the knives 2', pass through the grooves 3, in the hooks, severing the bight of thread on each hook, and the presser is drawn back, as seen in Fig. 1, by the bar J, that connects it with the cam lever E, which has a friction roll 1 that runs in a groove indicated by the dotted lines the other side of the cam M. When the threads are in the position just described, they are ready for the devices that tie the knot. (See Fig. 2 to 12.) These consist of an upright plate K, secured by a foot in position over the threads as indicated by dotted lines in Fig. 1. to slide up and down partly in a slot made in the plate K, and secured therein by a plate screwed to it on the back of plate K. A short horizontal shaft P, is held in the upper end of this frame, which has a'circular plate R, made fast on one end. The other end of the shaft projecting through the slot in the plate K, has a gear wheel V, secured to it. A toothed rack W, arranged to engage with the gear V, is held up in place by a flange Y, on its inner side, that has a slot in it through which the shaft P, passes. A rod I, attached to the lower end of the rack W, passes down through a hole in the foot of the plate K, to keep the rack vertical, and connect it with the cam thatoperates it. A catch plate N, is pivoted at n on the backof the plate K, and has a shoulder 8, made on its inner edge to catch under the shaft P, and hold it with the frame 0, at the upper end of the slot in frame K. (See Fig. 4, in which the gear and flange are broken away.) The plate N, is held in, as shown in Fig.4, bya spring 4", until a projection if, on flange Y, descends and strikes a pin Q), in the catch, and pushes the shoulder 8', out from under theshaft P so that the shaft and frame 0, can be drawn down by the rod 1, which takes place when the upper end of the slot in flange Y of rack W engages gear V the rack W having given shaft P, one turn in doing so. An arm R, held on a pivot f, fast in the circular plate R, near its outer edge, has a tube 0, in its lower end, the tube passing through a swivel stud S, held in the lower end of the frame 0. The tube 0, is made into a hook g, at its lower end, and a rod Z, is fitted to slide in the tube, having its lower end shaped to close the open side of the hook g, when the rod is slid down as shown in a section of the lower end of tube 0, in Fig. 3. The upper end of the rod Z, is held in a block at, in which a groove 0, is made diagonally across the face of the block, and a pin 19, is put in the face of the circular plate R, to pass through the groove 0, when the plate R, is turned around, and push the block and rod Z, down to close the hook g.

The devices just described work in conj u notion with the tipping trough A, Fig. 5. This trough is hung between ears extending up from the plate B, on pivots a, and has apin 11, passing through one corner of it lengthwise, and a bar D, pivoted to the back end of the pin 1'), connects it with a cam lever L, that has a friction roll a, running in the A frame 0, is arranged groove of cam M, (see Fig. 12) by which the pin 1), is moved back and forward in the hole in the trough. The first motion forward of the bar D, pushes the pin through so as to project at the other end, and the continuance of the motion, tips the trough up on its pivots, as seen in Fig. 9.

Thewinding of the loop is as follows, (Figs. 6, 7 and 8, are seen from line 2', .2 Fig. 5:) The trough is placed so that its inner end will come just under the hook g, Fig. 5. The backward motion of the presser G, and warp D, carries the threads into the hook g. Then, by the turning of the circular plate R, by rack V, the arm R, and tube 0, take the position as seen in Fig. 6. The pin 19, in plate R, having passed into slot 0, in blockm'has pushed that block down, and the rod Z, so as to close the book 9, around the threads in it. The continued motion of the circular plate R, causes the hook g, to wind the threads in it around the end of the trough A, which is notched in at the corners to retain the thread, in the order shown in Figs. 6, 7, and 8, until the hook g, is again over the end of the trough. The pin b, is then pushed endwise in the trough A, till it extends out of the other end, and the trough A, is tipped up, as in Fig. 9, when the loop around the end of the trough is under the hook g, so that a downward motion of the tube would carry it through the loop, as in Fig. 10.

It was stated in explaining Figs. 2, 3, and

4, that the drawing down of the rack W,

caused the shaft P, and plate R, to make one revolution. Then the upper end of the slot in the rack flange Y, having reached the shaft P, and the projection 15, on the flange, having pushed the catch N, back by the pins, the frame 0, with shaft P, and tube 0, will be drawn down by a continued motion of the rod 7 I, and the loop of thread in the hook will be carried down through the loop on the end of the trough A, as in Fig. 10, and a little more motion downward, causes the pin h, upon tube C to push the loop of thread off of the end of the trough A, so that it will remain on the pin 1), as in Fig. 11. Meantime the thread in hook g, is pushed into the draw up jaws j, which, by a downward motion have drawn the free end of the loop out of the hook g, and the knot up around the pin 1), sufliciently to have that pin drawn out, which is done by a backward movement of cam lever L, and rod D, which first drawsthe trough A, into a horizontal position, raising the knot up, and then draws the pin 1), entirely out of the knot, which is then tightened up by further motion downward, of the jaws j. When the tube 0, has pushed the loop 0d of the trough A, on to the pin b, it is returned up to its first position by an upward movement of the red I, which carries up the frame 0 and shaft P, to lodge on the catch N, again, and by means of the rack W, gives a reverse turn to the circular plate R, which carries the pin 19, back through the slot 0, raising the rod Z,

IIO

and opening the hook g, for another set of threads to be tied. 1 The necessary motion up and down, of th rod I, is given by the lever F, connected to the rod by a bar G, and a friction roll, running in a groove in the cam E. (See Fig. 12.) A knee lever I, has a friction roll 12, running in a groove on the other side of cam E, indicated by the dotted lines on that cam, and connected by a bar 3' to one arm of the draw up jaws j, the bar j being pivoted to the jaw at e, to allow its lower end to follow the curved.

motion of the end of lever I".

Fig. 15, shows how a fringe is made and knotted on the border of a piece of goods that has been woven in an ordinary loom, by passing the needle A, and thread through the fabric 9, near the edge, and knotting as described. It can also be made across the fabric, by folding it so as to present an edge receive the threads to be tied, a needle to dewhen so cut, andmeans to revolve said hook, substantially as specified.

4. The combination of a double revoluble hook, a needle to put threads on said hook, means for forming a knot of said threads, and means to revolve said hook, substantially as described. 7

5. The combination of a hook arranged to move in a circle and wind thread around the end of a trough held on pivots, with said trough to receive the thread from the hook andturn the loop thereon over to a position at about right angles to its position when wound, and means to move said hook and trough, substantially as specified.

6. A knotting mechanism consisting of an. upright plate having a frame arranged to slide thereon, carrying a shaft at its upper end with a circular plate fast on one end of the shaft, and a gear wheel secured to the other end of said shaft, in combination with a toothed rack engaging with the gear wheel, a stud fast in said circular plate near its periphery, a rod pivoted on said stud and arranged to slide in a block fast on the sliding frame, and having a hook in its lower end, substantially as described.

7. A knotting mechanism consisting of an upright plate having a frame arranged to slide thereon, carrying a shaft at its upper end with a circular plate fast on one end of the shaft, and a gear Wheel secured to the other end of said shaft, with a catch to support the shaft and frame at the top of said plate, in combination with a toothed rack engaging with the gear wheel, a stud fast in said circular plate near its periphery, a hollow rod pivoted on said stud arranged to slide in a block fast on the sliding frame, and having a hook in its lower end, with a sliding rod to close said hook operated by a jaw in said circular plate, substantially as described.

BENJ. ARNOLD.

Witnesses: I

CHARLES HANNIGAN, E. B. READ.

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