US1603673A - Take-up for looms - Google Patents

Description

Oct. 19, 1926. 1,603,673 -N. FIOLA TAKE-UP FDR LOOMS Filed Sept. 5, 1925 2 Sheets-Sheet l gwuml ov Al palewz 7 01a Oct. 19 1926. 1,603,673

N. FIOLA TAKE-UP FOR LOOMS Filed Sept 5. 1925 2 sheets-sheet 2 gwuento'q Ala ake); H01

Patented Get. 19, 1926.

UNEE r res NAPOLEON FIOLA, 0F FALL RIVER, MASSACHUSETTS.

TAKE-UP FOR LOOMS.

Application filed September 5, 1925.

This invention relates to looms and particularly to the take-up mechanism thereof.

In looms, every time the loom stops by reason of the action of the stopmotion, the gear which operates to wind up the woven cloth keeps on turning. This causes thin places and when the lay is pulled to draw the thread and then pushed back, the gear advances again.

If the take-up roll is not let back there will be a thin place in the fabric which is particularly noticeable on lightly woven goods. It is extremely difficult for the weaver to let off the take-up roll just the right amount to bring it back to the position occupied by the roll when the loom knocked off for if it is let off too much the result will be a thick place across the strip and if it is not let off enough there will be a thin place.

Generally speaking, one object of my invention is to provide a device of a very simple character which may be readily applied to the frame of an ordinary loom and in the path of movement of the handle of the loom, which will always stop the takeup on a pick in which the filling breaks or runs out and which will thus enable the weaver to produce more perfectly woven cloth than would be otherwise possible, and a further object is to provide a device dis-- posed in the path of movement of the handle so that when the loom bangs-01f and the handle is shifted, the handle will strike this device and project it into engagement with the pawl coacting with the take-up gear wheel, thereby lifting this pawl free from the gear wheel to permit the tension on the warp to rotate the take-up roll and the take-up ratchet wheel back with the driving pawl so that the take-up roll will not be advanced beyond the point at which it was at the time the filling broke.

A further object is to provide a device of this character which is very simple, which may be readily put in place and which is particularly applicable to a Kilburn and Lincoln loom.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary elevation of one end of a loom having my device applied thereto; I

Figure 2 is a front elevation of the structure shown in Figure 1;

Figure 3 is a horizontal section through Serial No. 54,811.

Referring to these drawings, A designates one of the side frames of the loom and B the breast beam thereof, C designating the usual shipper handle whereby the loom is stopped. My device is mounted upon the frame A as illustrated more particularly in Figure 3 and it comprises a bushing 10 which is disposed within the web of the frame A and passing through this bushing is a pin 11 having a tapered extremity. This pin carries upon it a collar 12 held in place by a set screw 13 whereby the collar may be adjusted and disposed between this collar 12 and .the bushing 10 is a compression spring 1 1.

The outer extremity of the pin 11 carries upon it a head 15 adapted to be struck by the handle C. The pin 11 passes through a transversely extending bracket member 16 shown in Figure 5 having an aperture for the passage of the pin and this bracket memher is formed with a longitudinally extending slot 17 the inner face of which is rabbetted, as at 18. Operating within this slot is an angular tang 19 of a bracket section or member 20. This member 20 is formed with a bolt hole 21 through which a bolt 22 may pass to attach it to the frame and the tang 19 is formed with a longitudinally eX-' tending rib 23 which engages in the slot 17. Thls rib is perforated, as at 24;, for the passage of a bolt 25. This permits the member or section 16 to be adjusted upon the tang 19 and thus suit loom frames of different sizes.

The spring 1% bearing against the collar 12 holds the pin 11 retracted but when the loom bangs off and the handle C moves from left to right, in Figure 2, this handle strikes on head 15 and drives the pin inward. The tapered end of the pin strikes the upper end of the latch lever L of the loom, lifting the inner end of this latch lever about a quarter of an inch. This latch lever carries a pawl Z which engages the teeth on the usual ratchet wheel R which in turn operates through gearing to operate the take up mechanism which winds up the cloth as fast as it is woven. Z is very slight, just sufficient to release it The lifting of this pawl v pawl such as commonly found in looms of this character. ll hen the loom is i again after stopping, the coil cou'ipression spring l l returns the pin to its retracted position and the pawl Z reengages the same tooth of the ratche" wheel R as when stopped, it being understood, of

course, that the gear has a balanced motion because the drag pulls it one way and the cloth being pulls the other way and the minute the loom is starred the latch reengages the gear R preventing backward movement and then the gear advances under the action of the drag l) and the usual mechanism. -The purpose of the latch L, pawl Z illustrated in the drawings is to prevent the ratchet gear wheel R from moving backward after it has been pushed forward one tooth by the swinging of the trunk or arm 6 and the action of the pawl D. This pawl D pushes down on the ratchet gear any time the loom pulls over. when the gear is forced forward one tooth by the pawl D, the pawl Z slips behind tooth of the ratchet gear, preventing the reverse movement of the ratchet gear while the pawl swings back into position to take up another tooth. Now if the pawl Z be raised olf the ratchet gear wheel, the swinging motion of the trunk or arm S with the pawl D will cause first a forward movement of the ratchet wheel R and then a backward movecircumstances the ratchet gear wheel R will not ad ance because the pawl Z being raiser, there is nothing to hold the ratchet gear after its forward movement from a back ward movement. There are four positions the lay, as known to weavers, which are top center, bottom center, back and front. 011 fine or light goods the lay is set up to the front with the harness even. When the loom is stopped to draw a thread in or, for any other reason, the loom generally stops with the lay at the front and in starting it up again, the weaver is obliged to pull the lay back to the bottom center or even further in order to give it a good swing. lVhen the lay comes up to the front when stopped, the pawl D is on a tooth of the ratchet gear wheel and will push the ratchet gear wheel forward and will push this gear wheel forward unless the aawl Z is raised at the time when the lay is pulled to the bottom center or further.

My invention acts to raise the pawl Z whenever the loom is stopped by shifting the handle C toward the ri 'ht in Figure 2 and this pawl Z will not go back in place on the ratchet gear until the loom is started up. Thus, the cloth on the loom will not advance so long as the pawl Z is raised whether the lay be turned back to bottom center or not. Thus woven cloth will not keep on being taken up and thus thin places will not be formed by the gear wheel advancing.

I have illustrated only such portions of the loom are necessary to make my invention clear and I do not wish to be limited to the use of my device with the particular loom mechanism illustrated nor to the exact details as these might be modified without departing from the spirit of the invention.

It will be noted, of course, that the collar 12 is adjustable to thus permit the pin 11 to be adjusted to suit the distance between the frame of the loo 1 and ti e latch.

When the present type of machine, with out my mechanism, is stopped by the stop motion, the weaver lifts the latch lever L with his hands while he lets back the ratchet wheel to thus prevent the formation of thin places when restarting the loom. He thus gets his hands oily resulting in the soiling of the cloth. lVith my improved device this is entirely avoided for the reason that the latch lever L is lifted automatically as soon as the handle C is shifted to the right in Figure 2 and against the head 1.5.

What I claim is 1. The combination with a loom having a cloth winding mechanism including a ratchet wheel, and a latch preventing backward movement of the ratchet wheel and having a handle, of a spring retracted member mounted upon the frame of the loom and in the path of movement of the handle and adapted to be projected into engagement with said latch when struck by the handle and thereby lift the latch from its engagement with the ratchet wheel.

2. The combination with a loom having an end frame, a cloth winding mechanism including a ratchet wheel and a latch engaging therewith and preventing backward movement of the ratchet wheel, the loom having a shipper handle, of a spring retracted pin mounted upon the end frame of the loom in the path of movement of said handle and adapted when struck by the handle to be projected into engagement with the latch and lift it from its engagement with the ratchet wheel.

3. The combination with a loom having an end frame, cloth winding mechanism including a ratchet wheel, a latch engageable with the ratchet wheel and prevcntingbacle ward movement thereof, and a shipper handle moving toward and from the end frame, of a pin mounted to slide through the end frame and toward the end of the latch, the pin having a collar and having its outer end disposed in the path of movement of said handle, a spring operatively engaging the end frame and engaging said collar and acting to urge the pin to a retracted position, the spring operating when the pin is struck by the handle to permit the projection of the pin into engagement with the latch to thereby lift it from its engagement with the ratchet wheel.

4. An attachment for preventing the takeup roll from taking up after the loom knocks off comprising a support arm to be applied to the end frame of a loom, a pin slidably mounted in said support arm to pass through the end frame of the loom and adapted to be struck by the shipper handle of the loom and projected thereby into operative engagement with the stop pawl of the take-up to lift the latter, a bushing through which the pin slides adapted to be disposed in said end frame, a collar upon the pin, a spring bearing against the bushing and against the collar and causing a retraction of the pin in one direction, the end of the pin adjacent said handle being formed with a head and the end opposite the handle being tapered.

5. An attachment for preventing a takeup roll of a loom from taking up after the loom knocks off, comprising an angular bracket member adapted for attachment to the end frame of the loom and having a bolt aperture, and a tang extending at right angles to the body of the bracket, a second bracket member slidably engaged with said tang and adjustable longitudinally thereon and having an aperture, a pin slidable through said aperture, a bushing through which the pin passes, a collar adjustably mounted upon the pin, a spring engaging against the bushing and said collar to there by retract the pin, the end of the pin adjacent said collar being provided with a head and the opposite end of the pin being tapered, the pin being in the path of movement of the shipper handle of the loom and being adapted to be struck by the handle thereof and operatively engage the holding pawl and the take-up mechanism to release said holding pawl.

6. In a loom, the combination with a cloth takeup ratchet wheel, a drag therefor, a latch preventing return movement of the ratchet wheel and a shipper handle automatically shifted in one direction to stop the loom, of means disposed in the path of movement of the handle and when struck by the handle lifting the latch out of its engagement with the ratchet wheel to there by permit the tension on the warp to shift the take-up ratchet wheel.

In testimony whereof I hereunto afiix my signature.

NAPOLEON FIOLA.

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