US1971231A - Filling parting means for looms - Google Patents

Description

Aug. 21, 1934.

J. NORTHROP FILLING PARTING MEANS FOR LOOMS Filed Feb. 5, 1934 3 Sheets-Sheet l INVENTOR.

C4 M/To/YJ. CoauE/v. l/O/VAS Noe THEOF.

ATTORNEY.

J. NORTHROP FILLING PARTING MEANS FOR LOOMS Aug. 21, 1934.

Filed Feb. 5, 1934 3 Sheets-Sheet 2 INVENTOR.

ATTORNEY.

Aug. 21, 1934. J. NORTHROP FILLING PARTING MEANS FOR LOOMS 3 heets-Sheet 3 Filed Feb. 5, 1934 INVEN TOR. JO/I/A S NOET/vEOR BY M ?M I MN i MTA/ESS. CZ/NTO/V COBUE/V.

ATTORNEY.

Patented Aug. 21, 1934 OFFICE- FILLING PARTING MEANS FOR LOOMS Jonas Northrop, Hopedale, Mass; assignor .to

Draper Corporation, Hopedale, Mass, a corporation of Maine Application February 5, 1934, Serial No. 709,716.

14 Claims. (01. 139-266) The present invention pertains to filling replenishing looms and moreparticularly relates to the temple thread parting means for sever.- ing or parting the filling threads left project I ing-from the cloth selvage each time the filling supply is replenished.

The conventional filling replenishing looms which embody means at one side of the loom for supplying a new shuttle or bobbin when the filling in the running shuttle is exhausted leave one filling end projecting from the cloth selvage or two such ends, depending upon whether replenishment takes place after or before complete exhaustion of the running filling. In any event, the filling end from the newly inserted filling supply should not be disturbed until the first pick thereof is beaten into place in the cloth else the tension on such pick be changed and a defect in the cloth produced. On the other 80 hand, the parting of this filled end should not be delayed until the end breaks or sags out of reach of the parting device.

Both of the filling ends mentioned above may be parted in one operation, and it follows from the foregoing that such parting operation should occur during the second pick after replenishment of the filling supply.

The invention contemplates the provision of a loom temple embodying a normally inoperative .30 filling parting member of the type operated by or through the beat-up of the lay, and means for rendering the filling parting member operative for one pick only, subsequent to the first beat-up after each replenishing operation.

A further aspect of my invention contemplates the provision of a. pusher member which is normally disengaged from the filling parting member but which engages the same and pushes it rearwardly into the path of the lay after the filling ends are in position to be parted. I In the specific embodiment of my invention subsequently described the filling parting member normally rests idly in a forward position out of the path of the lay. As the replenishing mechanism is called into operation, a pusher member is moved forwardly into engagement with the filling parting member, a spring is tensioned and a latch is set to prevent actuation of the parts by the spring. Return of the replenishing parts to normal position after operation thereof results in the pusher member pushing the filling parting member rearwardlyfa short distance.- The lay on its next beat-up engages the filling parting member and thereby trips the latch, which results in the spring forcing the I ing in section;

pusher member rearwardly, thus positioning the parting member for operation by the lay on the next beat-up. ,As the pusher member moves rearwardly it is automatically disengaged and. repositioned ready for the next operation of the 9 replenishing mechanism.

While the particular embodiment mentioned consists of relatively few parts which are simple, cheap and durable, my invention contemplates changes being made in such embodiment Within the scope of the appended claims.

For more detailed disclosure of the said preferred embodiment reference may be had to the accompanying drawings, of which: 7

Fig; 1 is a plan view of the temple and associated parts Fig. 2 is a side elevation, certain parts of the loom frame and replenishing mechanism appear- Fig. 3 is a detail, Figs. 1, 2 and3 showing the parts in, their normal inoperative positions;

Figs. 4 and 5 show, in full and dotted lines, two subsequent stages in the operation of the device;

Figs. 6 and 7 further illustrate the operation; and i Fig. 8 is a view in perspective of the temple with the parts of the filling parting mechanism in spaced relation thereto.

The loom to which my inventionhas been applied is of conventional design except for the filling parting mechanism, and is not herein disclosed in detail. Of such conventional parts there does appear on the drawings the breast beam- 1 which extends across the loom at the front thereof. There is also fragmentarily illustrated the lay 2 which is adapted to be reciprocated toward and from the front of the loom, i. e. toward and from .the breast beam 1, in the usual manner. The warp threads W feed from the rear of the loom toward the, front and the filling f is inserted and beaten up to the fell F to form cloth C, by other usual instrumentalities not shown.

Of the filling replenishing mechanism I have shown only a rod 3 which extends across the front of the loom beneath the breast beam. This rod will be recognized by .those familiar with automatic looms as being the usual means for transmitting a call for'replenishment'from one side of the loom to the other.

A temple housing t is mounted on the breast beam 1 and a temple bar 5 carrying a head. 6 is mounted for reciprocation in the housing 4 in the usual manner. A filling parting means is'mounted in the temple head for parting projecting filling ends adjacent the cloth selvage. While various forms of parting means may be employed, I prefer a member 7 which is mounted in the temple head for rocking and sliding movements and which is provided at its rearward end with a plurality of upturned hooks 8 for breaking the filling. A depending arm 9 on the member 7 is adaptedto be struck by the lay as the latter beats up, forward movement of the member 7 serving to part any filling ends which may be positioned in front of the hooks 8.

The filling parting member 7 normally occupies the position in which it is shown on Figs. 1, 2 and 3 and in full lines on Figs. 4 and 5. In this position the filling parting member is forwardly of the path of the lay and the hooks 8 are housed within the temple head, the member being idle, or inoperative. Preferably the filling parting member is not biased either forwardly or rearwardly but is free to rest in any given position until moved by the lay or other agencies to be described.

The filling parting member is pushed rearwardly, to operative position, by a pusher member 10. The pusher member in its normal position, Figs. 1 and 2, is not in engagement with the filling parting member 7 but is supported at its rearward end 11 upon the temple head and intermediate its ends upon a pin 12, to be described. It will be noted that the pusher member is provided with an opening 13 which permits the same to move relative to the pin 12. The forward end of the pusher member is provided with a slot 14 in which is engaged a pin 15 carried by an arm 16 on the rod 3. By this means, the replenishing mechanism is made to move the pusher member forwardly and rearwardly in a manner to be described later. A guide member 17 may be provided on the temple housing for guiding the pusher member in its movements. 4

A latch 18 is provided at its rearward end with a slot 19 engaging over a pin 20 which projects from the temple bar 5. The slot 19 is curved or notched upwardly at its forward and rearward ends 21 and 22, to provide two positions of engagement. The pin 12 above mentioned is carried by the latch intermediate the ends of the latter. The forward end of the latch is slotted at 23 to receive the pin 15, the slot 23 being longer than the slot 14.

A bell crank lever 24 is pivoted on pin 20. One arm of the lever is bent laterally at 25 (Fig. 1) to bear on the top edge of the latch 18. The other arm 26 is connected to one end of a spring 27. The other end of the spring is hooked into an upstanding boss 28 formed on the latch 18. This spring, when tensioned, serves two functions. First, it tends to pull the latch, and thereby the pusher member, rearwardly. Second, through the medium of lever 24 it serves to bias the'rearwardend of the latch downwardly with a consequent engagement of the notch 21 or 22 with pin 20 according to the position of the latch.

The operation is as follows:

The various parts of the filling parting mechanism are normally positioned as shown in Figs. 1, 2 and 3, wherein the pin'le' is at the forward end of slots 14 and 23, the notch 21 is engaged with pin 20 toh'old the latch 18 stationary, and 70' the rearward end 11 of pusher member 10 rests upon the temple head. During the'idle, or inoperativeperiod, the filling parting member 7 rests in the position shown, being held solely by such friction as exists in the guideway in'the i temple head. When replenishment of the filling supply is required rod 3 is rotated. counterclockwise from the position of Fig. 2 to the full-line position of Fig. 4.

Movement of the rod 3 to replenishing position occurs early in the cycle of the lay, and the actual transfer of the new filling supply does not occur until the lay reaches front center on the beatup. It will be noted, Figs. 4 and 5, that such movement of the rod 3, serves to pull the pusher member 10 forwardly until the notch 29 therein drops into engagement with a pin 30 projecting from the forward end of the parting member 7. Also, the latch 18 is pulled forwardly, notch 21 being disengaged from and notch 22 engaged with pin 20. Thus, the spring 27 is tensicned and the latch set to prevent the spring from moving the latch and pusher member rearwardly.

When the lay beats up and the new filling sup ply inserted the parts described remain stationary and continue so until the lay is well rearward on the next pick. Then the rod 3 and'arm 16 return to their initial position,shown in full lines, Fig. 2 and in dotted lines, Fig. 4., This return of arm 16, and pin 15, serves to move the pusher member 10 and filling parting member '7 rearwardly (see dotted lines, Figs. 4 and 5) just ,sufiiciently that the lay can strike arm 9 at the forward end of the next beat-up, which is the first beat up after the replenishing operation.

When the lay strikes the arm 9 as just described, the member 7 rocks about itsrearward end, thus raising the pin 30. The pin 30 engages in a slot 31 in the latch, wherefore the raising of the pin will raise the latch until notch 22 is dis engaged from the pin 20. Then, as the lay recedes, Figs. 6 and '7, the spring 27 will pull the latch rearwardly. Rearward movement of the latch moves the pusher member, and thereby the filling parting member, rearwardly to operative position of the latter. Simultaneously with rearward movement of the pusher member the inclined rearward end 11 thereof engages the temple head and is cammed upwardly until the notch 29 is disengaged from the pin 30. At this time the latch, pusher member and replenishing mechanism will all have been returned to the normal inoperative position of Figs. 1, 2 and 3. The filling parting member will remain in rearward position, with the filling ends 7 hooked in front of hooks 8, until the next beat-up of the lay, which is the second beat-up after the replenishing operation.

Since the filling parting member in its rearward position just described is free to move forwardly it will be so moved by the lay, whereupon the filling ends will be parted adjacent the selvage and the filling parting member returned to inoperative position.

It will be apparent that. by providing for engaging and disengaging the pusher member in the manner indicated I have eliminated any necessity for extreme and costly accuracy in the manufacture of the parts involved. That is,-the relative locations of slots, pins and notches in the parts can vary appreciably without detrimental results, and accordingly the few parts required can be very cheaply manufactured.

. 14 v The types of filling parting devices which are 0 beat-up of the lay after each replenishing operation.

Havingfully described the preferred embodiment of my invention, I claim:

1. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with anormally inoperative filling parting member, a rigid pusher member normally disengaged from said fillingparting member but engageable therewith for pushing the same rearwardly to operative position, and means controlled by said replenishing mechanism for operating said pusher member.

' 2. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with anormally inoperative filling parting member, a rigid pusher member normally disengaged from said filling parting member but engageable therewith for pushing the same rearwardly to operative position, means controlled by said replenishing mechanism for operating said pusher member after each replenishing operation, and means for disengaging said pusher member from said filling parting member as the latter moves rearwardly.

3. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a filling parting member operable by the lay but normally occupying a position forward of the path of the lay, a pusher member normally disengaged from said filling parting member but engageable therewith for pushing the same rearwardly into the path of the lay, means controlled by said replenishing mechanism for operating said pusher member, and means for disengaging said pusher member from said filling parting member as the latter is moved rearwardly.

4:. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a normally inoperative filling parting member, a pusher member normally disengaged from said filling parting member, means operating each time said replenishing mechanism operates for moving said pusher member forwardly into engagement with said filling parting member and then rearwardly to push the latter to rearward operative position, and means for disengaging said pushermember from said filling parting member as the latter moves rearwardly.

5. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a filling parting member operable by the lay to part the filling ends as the lay beats up, said member normally occupying a position forward of the path of the lay, a pusher member for pushing said filling parting member rearwardly into the path of the lay, and means for causing said pusher member to so push said filling parting member only subsequent to the first beat-up of the lay following each replenishing operation.

6. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a

temple provided with a normally filling parting member, a pusher member normally disengaged from said filling parting member, means associated with said replenishing mechanism for engaging said pusher member with said filling parting member, means for moving said pusher member, and thereby the filling parting member, to.- ward operative position of the latter subsequent to the first beat-up of the lay following each replenishing operation, and means for disengaging said pusher member from said'flll-ing parting operative by said first named means to bias said.

members toward operative position of the filling parting member, means for holding said pusher member against the action of saidspring means during the first pick aftereach replenishing operation, and means for releasing said last named means by or through the first beat-upof the lay after each said replenishing operation.

8. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a filling parting member operable by the lay but normally occupying a position forward of the path of the lay, a pusher member for pushing said filling parting member rearwardly into the path of the lay, spring means rendered operative by said replenishing mechanism to bias said pusher member rearwardly, a latch for restricting rearward movement of said pusher member during the first pick after each replenishing operation, and means for releasing said latch by or through the first beat-up of the lay after each said replenishing operation.

9. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a filling parting member operable by the lay but normally occupying a position forward of the path of the lay, means controlled by said replenishing mechanism for moving said filling parting member rearwardly to operative position thereof, a latch for preventing said movement of the filling parting member during the first pick after each replenishing operation, and means for releasing said latch by or through the first beat-up of the lay after each said replenishing operation.

10. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a filling parting member operable by the lay but normally occupying. a position out of the path of the lay, means rendered operative by said replenishing mechanism to bias said filling parting member tooperative position, a latch for preventing the filling parting member from being returned to operation during the first pickafter each replenishing operation and means for releasing said latch by or through the first beat-up of the lay after each said replenishing operation.

11. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a normally inoperative filling parting member, a pusher member movable to restore said filling parting member to operation after each replenishing operation, a latch for preventing such movement of the pusher member during the first pick after each said replenishing operation, a single spring connected to actuate both said latch and said pusher member, and means for releasing said latch.

12. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a normally inoperative filling parting member, a pusher member movable to restore said filling parting member'to operation after each replenishing operation, a latch for preventing such movement of the pusher member during the first pick after each said replenishing operation, a single spring connected to actuate both said latch and said pusher member, and means for releasing said latch by or through the first beat-up of the lay after each said replenishing operation.

13. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a normally inoperative fill-- ing parting member, a latch mounted adjacent said temple, a pusher member supported by said latch and adapted to push said filling parting member to operative position, means associated with said replenishing mechanism for rendering said latch operative to restrict movement of said pusher member during the first pick after each replenishing operation, and means for releasing Said latch by or through the beat-up of the lay. 14. A filling replenishing loom having a reciprocating lay, filling replenishing mechanism, a temple provided with a normally inoperative filling parting member, a latch mounted adjacent said temple, a pusher member slidably supported by said latch and adapted to push said filling parting member to operative position, means for rendering said latch operative to restrict movement of said pusher member during the first pick after each replenishing operation, and a connection between said thread parting member and said latch for releasing the latter when the former is engaged by the lay during the first beat-up after each replenishing operation.

JONAS N ORTHROP.

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