US850476A - Splicing yarn-feed device for knitting-machines. - Google Patents

Description

E; A. EoUsEMAN. sPLIcING YARN EEED DEVICE PoE KNITTING MACHINES.

V.APPLIUATION FILED 00112. 1908'.

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EATENTED'AEE. 1E, 19o?,

PATENTE). APR. 16,1907;

H. A. HOUSEMAN. SPLICING'YAEN FEED DEVICE POR YKBT'I'I'FI'IBIG MACHINES.

APELIATION FILED 00T.12, 1906. v

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Arm/Vim HARRY A. HOUSEMAN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO STANDARD MACHINE COMPANY,

A CORPORATION OF PENN SYLVA or PIIILAnELPI-IIA, PENNSYLVANIA,

NIA.

MSPLICING YARN-FEED DEVICE FOR KNlTTlNG-NIACI-IINES- Specication of Letters Patent.

Patented April 1e, 1907.

Application filed October 12, 1906. Serial No. 338,550.

To a/ZZ whom it nca/y cm1/cern:

Be it known that I, HARRY A. IIoUsEMAN, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and `useful Improvement vin Splicing Yarnthe following is a full, clear,and exact 4descrlption, re erence being had to the accompanying drawings, which form a part of this speciiication.

` for its vobject Generally, my invention has particularly certain improvements in what is known as the splicing yarn-feed mechanism for circular-knitting machines."

' Specially, it has for its object novel mechanism to bring into action and receive the supplemental thread, the result being greater simplicity of mechanism and certainty of action, and, further, the position of the supplemental thread is in no way changed.

I will first describe the embodiment of my invention thus stated, in the accompanying drawings, and then specifically point out the invention in the claims.

In the drawings, Figure 1 is a generalviewr of part of a lknitting-machine containing my improved mechanism. Fig. 1A is an enlarged plan view of thread-lock. Fig. 2 is an enlarged elevation of a part of the mechanism. Fig..3 is a section on lines 3 3 of Fig. 2. Fig. 4 is a section on lines 4 4 of Fig. 2. Fig. 5 is a perspective view showing thread-cutters. Fig. 6 is a section on lines 6 6 Fig. 1.

ais theframe of the machine, b, the needle and' cam cylinders; c, the supplementalthread cop d, the supplemental thread which passes from the cop through a locking device composed of the iixed jaw e and the movable jaw f, between which the supplemental thread passes. The arm g of the movable jaw is oper'ated by a spring h, tending to close the jaw The thread then passes vover or through the pivoted slack arm i, through or into the groove y' in the block 7c. The arm g is connected to one member of a bellcrank Z, the other member of which rests on the top of rod m.. This rod m is connected with a rod n, which rod is used to shift the clutch to cause the cam-cylinder to rotate and reciprocate substantially as described in United States Letters Patent No. 538,518, granted to me April 30, 1895.

p is a sliding frame movable longitudinally of block k upon rods 25. Connectedto this frame 5 0 is a pivoted lever t, operated by a f spring u, tending to hold it down. Through Feed Devices for Knitting-Machines, of which l an eye o In this lever passes the main thread w, extending from a cop. (Not shown.)

g is a guide having at each end a downward incline r and an intermediate high p0rtion s.

. In front of block is a cutter comprised of the movable member :t and iixed member y. The movable member is acted on by a spring-lever z, tending to close the cutter. Upon the frame p is a pin 1, which in the movement .of the frame in one direction strikes the tailpiece 2 of the lever z, swinging it and opening the movable member x, the lever and the movable member being locked in this position by the pivoted trigger 3 interlocking with the pin 4 on the lever a. In the opposite movement of this frame'h the trigger 3 is released.

The frame p and pivoted slack arm i are operatedas follows: The slack arm i is pivoted to collar 4, secured to upright 5 by a set-screw 6. Oonnectedto arm i is the rod 7' which is connected to one member of the bell-crank 8, which lever is pivotally secured to the upright 5. The other member of the bell-crank 8 is connected by link 30 to the sliding frame p. From the bell-crank 8 a rod 9 extends to a pivoted lever 10, having a roller resting upon the cam 11 on the shaft 31 of the cam used to shift the machine from reciprocation to rotation, and vice versa, as shown and described in my before-mentioned Patent N o. 538,518, and operated by a ratchet 12, as in said patent. In the present construction the ratchet-teeth 13 are arranged to operate this cam 11 to move the lever 1() the frame p in one direction (the forward) is' through the action of this cam 11 upon lever 10. The forward movement of said frame corresponds to thechange from reciprocation IOO to rotation of the machine, and the reverse l nally of said block, a pivoted thread-holder,

movement of the frame p is caused by the action of the spring 14, acting in thebell-crank 8, thus corresponding to the change from rotation to reciprocation.

Just prior to operation of its cam to move frame 32 to change the machine from rotation to reciprocation the lever 10 is lowered, allowing the frame p to move backward, causing the main-thread lever t to move upward, backward, and downward, placing the main thread in the groove with the supplemental thread, the cutters are opened, and

the slack arm L is depressed, a slack of the supplemental thread having been obtained. by the previous slack arm, which is pulled `forward in the feed of the main thread to the needles to the eX- tent of the slack. I/Vhen the shifting-rod fn, operates, the lock for the supplemental thread is released and the supplemental thread is fed with the main thread to the machine. Just before the cam-cylinder-operating mechanism is again reversed the'lever 10 is elevated, elevating rod 9, moving frame p forward, and lifting the slack arm. In the return movementy of the frame the main thread is lifted out of the groove in the block, the supplemental thread clamped by the toe 36 of lever t, and the cutters operated to eut the supplemental thread. When the shitting-rod operates for this movement, the supplementalthread lock is closed. This completes a cycle, leaving su'flicient slack of supplemental thread for the next operation.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is-

1. In a circular-knitting machine, in combination, a block having a groove adapted to receive a thread, a frame slidable longitudinally of said block, a pivoted thread-holder, pivoted to said block and a cam-guide in line of' movement of said block, said cam-guide having an intermediate high and inclined end portions, and means to move said frame.

2. In a circular-knitting machine, in combination, a block having a groove adapted to receive a thread, a frame slidable longitudiupward movement of the 1 clined end portions,

pivoted to said block, and a cam-guide in line of movement of said block, said camguide having an intermediate -high and inand means to move said frame in each direction, at predetermined times.

8. In a circular-knitting machine, in combination, a block having a groove adapted to receive a thread, a frame slidable longitudinally of said block, cutters in front of said block, a pivoted clamp carried by said frame, said clamp holding the thread in the groove in line with the cutters, and a cam having an upward incline in line of movement of said pivoted clamp adapted in the rearward movement of the frame to release said clamp and in the forward movement to clamp the thread, and means to move said Jframe. l

4. In a circular-knitting machine, in combination, a grooved block adapted to receive a thread in the groove thereof, cutters in front of said block, a spring-lever normally holding said cutter closed, a frame, means to move said frame longitudinally of the block, a pin carried by said frame adapted in one direction of movement of the frame to operate said lever to open said cutters, and a locking device interlocking with said leverl in said last-mentioned position.

5. In a circular-knitting machine, in combination, a grooved block adapted to receive a thread in the groove thereof, cutters in front of said block, a spring-lever normally holding said cutter closed, a frame, means to move said Jframe longitudinally of the block, a pin carried by said frame adapted in one direction of movement of the frame to operate said lever to open said cutters, and a locking device interlocking with said lever in said last-mentioned position, said pin in the opposite movement of said frame releasing said locking device.

In testimony of which invention I have hereunto set my hand, at Philadelphia, on this 10th day of October, 1906.

' HARRY A. IIOUSEMAN.

Iitnesses: Y

WALTER NEUFF, W. R; BENsoN.

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