US1576285A - Loom bunter - Google Patents

Description

March 9 1926. v 1,576,285

- A. H. LANDRY LOOM HUNTER Original Filed April a. 1924 5 Sheets-Sheet 1 Mardi 9,' 1926.

A. H. LANDRY Loom BUNTER 3 Sheets-Sheei'l 2 vOriginal Filed April E5.4 1924 3 Sheret's-S- Sheet 5 A. H. LANDRY LOOM BUNTER Original Filed April s. 1924 March 9 1926.

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ADoLrHUs HENRY Larimer, or TOWNSEND, MASSACHSETTS.

LOOM BUNTER Application inea April s, `1924, serial No. 705,149. Renewed November 11, 1925.

To {zZ/Z whom. it may concer/1i Be it knoivn that I, ,Anonimos H. LANDRY, a citizen ot the United States, and a resident ot Townsend, in the county of Middlesex and State oi lrlassachusettsjhave invented a neviY and Improved Loom Bunter, of which the following' is a full, clear, and exact description.

This invention relates to improvements in loom hunters, an object of the invention being to provide a bunter which may be used in connection with any `ordinary stop lmotion and which. will function positively to stop the loom onV a-,Quarter oit a pick or a quarter o1" a turn ot the lay, which insures a practically instantaneous stop when the lillerthread breaks.

liVit-h hunters such as heretotore employed on looms in connection with stop motions, the loom is permitted to run over one addijtional pick at least before being brought to a full stop. This seriously interferes With the quick resetting lot the loom and slows up the action to a material extent, not to mention the 'i'aot that there is a ivastage of thread or yarn and more or less imperfect operation.

lt is the purpose ot my invention to pro-- vide a bunter which stops the .loom as soon as the break occurs, thus permitting a, quick repair andv quick return to operation. This an economy of material andv time and is an extremely important item in the trade where competition so keen.

A further object is to provide a bunter oi extremely simple construction Which Will most eiiiciently perform the functions for which itis intended.

1With these and other objects in view, the invention consists in cert-ain novel features oi' construction and combinations and arrangements oi parts which Will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a-vieW in front elevation illustrating such portions of a loom as are necessary to indicate the operation of my inlproved bunter;

Figure 2 is a view in section on the line 2 2 ot Figure 1, showing the normal position of the co-operating parts;

Figure 3 is a view in section on the line 3-3 of Figure 17 showing the normal position bythe filler thread carried by the shuttion of parts and illustrating in detail my in'rproved bunter, which is supported just under the breast beam ot the loom;

Figures 4t and 5 are views similar to Figures 2 'and 3 but showing the position of parts after a tiller thread breaks and il- .60 lustratiug my improved bunter in operative pos1t1on to stop the loom; Y Figure 6 is a1 fragmentary plan view il- I ustrating the position of the dagger and its .co-operating parts. Y

A1 represents the frame of the loom which is ji- 'oj-irled with an ordinary breast beam 2 and lay l. .lhe lay 3 is providedwith a iceler wire e normally held infelevated posi.-

O tle 5. This V'teeler Wire is operatively connected by a link 6 With a. dagger 7 pivotal- 117 connected to the lay and movable over a lined bracket arm 8 on the breast beam 2.

9 represents a pivoted dog Which is provided 75 with a pin 10 engagingan .armll 4fixed to the shipper shaft`12, and 13 is the ordinary n shipper handle tixed to this shaft for manually moving the same to release a clutch 1li and stop the loom.

The parts above described are standart equipmentand constitute one form of stop motion, and I `would have it distinctly understood that While I illustrate my invention in connection With this particular stop motion it is not limited in such respect as it may be usedv in-connectionvvith various other stop motions. Y Y

My invention consists in the provision of a pivoted bunter arm 15 which is pivotally connected at its lower end, as shown at 1o, to-theloom frame 1 and at its upper end is perforated to receive a. plunger rod 17l mounted in a bracket 18 on the trame 1. A coil spring 19 is provided on the rod 1'? be- 90 tween the bracket 18 and the arm 15, and heads or enlargements 20 and 21 are lformed on the respective ends of the rod 17 to hold the assemblage in proper relation, as clearly indicated'in Figures 3 and 5.

The arm 15 is normally in thefposition shown in Figure 3 and held in this position by the spring 19. The arm 15 carries a pivoted dog 22 having a shoulder 23 thereon against which the lay 3 engagesfvvhen the bunter is in operation. This dog 22 normal- .ly hangs in an inoperative position,l as shown in Fgure, and is engaged and. mved upr f Y Lacasse .vardly by a crank arm 2% on a shaft 25, which latter issupported in the' loom frame 1 parallel to the shipper shaft 12. Fingers 26 and 27 are secured to the shafts 25 and l2, respectively, so that when the shipper shaft 12 is turned in one direction the finger 27 will cause the finger 26 to move and bring .the bunter mechanism into operative position and function with the stop motion to bring the loom to a quick stop.

The broad purpose of my invention is, however, to automatically apply the bunter and this is accomplished by reason of the fact that an arm 11 turns freely on the shipper shaft 12 and is provided vith'a Enger 2S engaging a linger 29 on the shaft 25, as will be hereinafter explained.

Y Referring to Figures 3 and 5, it.V will. be noted that an elasticl cushion 30 is provided on the loom frame in the path of movement of the arm 15 so as to limit the movement of this arm 15 in one direction.4

Figure 2 illustrates in full lines the nor-- mal extreme movements of the'lay. IVhen, however, the filler thread on the lay breaks, the feeler wire tdrops to permit the dagger 7 to move downwardly a distance sufficient,k

to strike the dog 9,-and when this occurs the dog 9 moves the arm 11 and fingers 28 and 29 to impart a partial turi'iing` movement to Vshaft 25. This movement Vof shaft 25 through the medium of the arm 24e elevates the dog into the path of the lay 3. Then the lay 3 strikes the shoulder s3 of dog 22 it receives the action of the bunter as this movement of the lay forces the arm 15 in a direction against the tension of spring 19, the extreme vmovement iii this direction being indicated in Figure 5. The 'spring 19 throws the lay back Vto its-normal position but has checked the momentum of the lay .and brought the saine to a stop almost instantaneously with the functioning of the stop motion. It is, of course, to be understood that the stop motion functions when the filler thread breaks as thethrowing 0E ing any portion of the loom other than is necessary to point out the operation of my improved bunter, and I do not wish to be limited in any respect to a loom structure ora stop motion of any particular design or construction but wish to cover broadly my improved bunter which functions to stop the -loom practically instantaneosuly upon the breaking of a filler thiead. c

Various slight changes and alte ations might be made in the general form of the parts described without departing from my invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

f AI claim:

1. A bunter mechanism for looms, comprising a pivoted arm, a vspring-pressed bolt engaging the arm, ar cushion limiting the movement of the arm, a pivoted dog on the arm, and means for moving the dog into the f path of the lay whereby the spring-pressed arm functions as a bunter to stop the lay.

2. In a loom the combination of a frame,

a lay pivotally connected to the frame, a

shipper shaftin the frame, a handle on the shipper'shaft, a clutch controlled by the shipper shaft, a pivoted dog, an arm loosely mounted on the shipper shaft and controlled by the dog, a second shaft parallel to the shipper shaft, fingers on said shaft compelling theirsimultaneous turning movement, an arm on the last-mentioned shaft, abuntei mechanism moved into operative position by said last-mentioned arm and adapted. to stop the lay, and a pivoted dagger on the lay adapted when a filler thread breaks to engage the dog and causer the brake to assume an operative position.

ADoLrHUs HENRY LANDRY.

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