US2007120A - Reed motion for looms - Google Patents

Description

July 2, 1935. E. R. HOLMES 4 REED MOTION FOR LOQM S Fi led Feb. 16, 1934 0 2 Sheets-Sheet 1 :Qnoent'or flbride R. Hohnes ttov'nljs y 1935- E. R. HOLMES REED MOTION FOR LOOMS Filed Feb. 1M6, 1934 2 Sheets-Sheet 2 ttrnes i Patented July 2, 1935 UNITED STATES PATENT OFFICE Elbridge R. Holmes, Worcester, Mass,

to Crompton & Knowles ter, Mass, a corporation assignor Loom Works, Worcesof Massachusetts Application February 16, 1934, Serial No. 711,534 5 Claims. (oi. 139 1ss) This invention relates to improvements in loose reads for looms and it is the tion.

In the weaving of certain fabrics it is desirable to give theweft a light'beat to accommodate any change in position of the fell or slipimportant object of my present invention to acconnection betweenthe rod With these and other objects in view and the stop.

which will parts hereinafter described. and set forth in'the claims.

In the accompanying drawings, wherein a convenient embodiment Fig. 1 is a side elevation of a loom of my invention is set forth,

made according to my present invention, parts being in section,

Fig. 2 is a front elevation taken in the direction of arrow 2, Fig. 1,

Fig. 3 is a detailed view of the upper portion of Fig and Fig. 4 is a View similar to lay shown in rear position.

Referring to the 1 with the reed swung to back position,

Fig. 1, but with the drawings, the loom frame M! has a lay H mounted on swords l2 one of which is shown in Fig. 1. The swords swin g about a rocker pin I3 by means of a crank connector It.

l5 of-the lay has vertically 6 with pins I I which form the upper end of a reed struccarries a reed IS with a bot may be oper- The backn the back of the lay and if desired the rail and backstay may be held in the normal position shown inFi'g. 1 by light springs 22 which position the reed normally at the time of beat-up but yield under relatively light pressure. So far as certain aspects of my invention are concernedthese light springs are not essential and may be replaced by any other-structure which will oifer but light resistance to the reed at beat-up.

The matter thus far described may be of common construction and except for the manner of controlling the swinging of the reed as set forth hereinafter may operate in the usual manner.

In carrying my invention into effect I provide a control lever 35 pivoted as at 3! to some part 7 of the lay, such as the lay sword 25, and provide the upper end of this lever with a finger 32 which bears against the backstay as shown herein, although it is sufficient for the purposes of the present invention if this finger has operative connec'-' tion with the reed by any other connection effective to hold the reed forwardly by a force derived from this finger 32 A description will be given of one lever and its control parts, but it is to be understood that more than one of these levers can be employed if desire A rearwardly extending connected pivotally to the upper end of a rod 34 by means of an adjustable rod head 35. Adjustable nuts 35 on the rod receive the upward thrust of a compression spring 37 which surrounds the rod. The rod passes freely through a guide boss 38 on the lay sword, and the downward pressure of the spring 3'! is exerted on this boss, The lower end of the rod has an adjustable forked rod head 39 pivotally connected as at 40 to a link 4|, having a vertical slot 42 therein.

A stand 43 secured to the loom frame carries a stop stud 44 adjustable backwardly and forwardly in a slot 45 in the stand. The latter may be adjusted vertically by means of bolts 46 which pass through vertical slots 47 in the stand. Provision is therefore made to adjust the stud 44 vertically and horizontally. As shown in Fig. 1 the axis I3 of the lay is forward of the stop stud 44 and the normal relation of the parts is such that the axis of the rod is substantially coincident with the line joining. pivot 45 and the stop stud 44.

In operation, when the lay is in rear position as shown in Fig. 4, the rod is down relatively to the stop stud 44 and the link 4| is in low position. The spring 37 is therefore free to act through the nuts 35 and rod 34 to hold the lever 39 firmly against the backstay, thereby holding the reed in normal shuttle guiding position.

arm 33 of the lever is As the lay moves forward the link 4| is raised due to the angular motion of the lay and at some predetermined point before the lay reaches front center the bottom of the slot 42 will reach the stop stud 44 after which further upward movement of the link and the bottom of the rod will be prevented. Continued forward movement of the lay with arm 33 held against upward movement will result in a counter-clockwise movement of lever as viewed in Fig. 1, resulting in movement of the finger 32 rearwardly with respect to the backstay, thereby freeing the latter to permit the reed to strike the fell with a force unaffected by the pressure of spring 31. The ad instability of the red heads 35 and 38 and the stand 43 affords means for varying the point at which the reed can be freed from control of springs 31 during the forward motion of the lay.

Since the boss 38 guides the rod :34 the lower end of the latter will have an angular motion around axis l3 tending to move the rod 34 out of line with the stop stud. The link 4! aocommodates this motion and avoids straining of the parts.

From the foregoing it will be seen that I have provided a simple means for supporting the reed when the lay is in rear position so as to guide the shuttle and to relieve the reed as the lay approaches front center to effect a light beat-up. It will further be seen that the compression spring is carried by the lay and exerts a uniform pressure on the reed when the lay is in rear position, so that excessive wear and pressures are thereby avoided.

-Having thus described my invention it will be seen that changes and modifications may he made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In aloom, a lay, a reed supported by and capable of movement relatively to the lay, a member to be operatively related to the reed, a rod carried by the lay and operatively related to the member, a spring surrounding the rod and supported by the lay and effective normally by a force transmitted through the rod to hold the member operatively related to the reed to cause the latter to be firm relatively to the lay, and means to engage the rod and prevent free movement thereof with the lay as the latter approaches forward position, thereby freeing the reed from any force derived from the spring.

In a loom, a lay, a reed supported by and capable of movement relatively to the lay, a member to be operatively related to the reed, a rod pivoted to the member and guided by the lay, a spring carried by the lay to urge the rod toward the member and normally effective to hold the reed firm relatively to the lay by a force transmitted through the rod, and a stop on the loom independent of the lay to be operatively related to the rod as the lay moves forwardly to arrest free motion of the rod with the lay and effective to move the member to a position where the latter is ineffective to transmit the force of the spring to the reed.

3. In a loom, a lay movable backwardly and forwardly, a reed supported by and capable of movement relatively to the lay, a lever pivoted to the lay and movable into operative relation with the reed to hold the latter firm relatively to the lay and movable out of operative relation with'the reed to render said reed movable relatively to the lay without restraint on the part of the lever, a rod pivoted to the lever and guided by the lay, a spring surrounding the rod and effective normally to hold the lever in operative position relatively to the reed, and a stop to arrest free movement of the rod as the lay moves forwardly and effective to move the lever out of operative relation with respect to the reed.

4. In a loom, a lay movable backwardly and forwardly, a reed supported by and capable of movement relatively to the lay, a lever pivoted to the lay and movable into operative relation with the reed to hold the latter firm relatively to the lay and movable out of operative relation with the reed to render said reed movable relatively to the lay without restraint on the part of the lever, a rod pivoted to the lever and guided by the lay, a spring surrounding the rod and effective normally to hold the lever in operative position relatively to the reed, a stop to arrest free movement of the rod as the lay moves forwardly and effective to move the lever out of operative relation with respect to the reed, and a link between the rod and stop movable relatively to the stop and rod.

5. In a loom operating with a shuttle, a lay to occupy front and rear positions, a reed loosely mounted on the lay, a member to be operatively related to the reed to hold the latter in shuttle guiding position when the lay is in rear position, a rod connected to the member, a spring acting through the rod tending to move the member toward the reed, a guide for the rodmovable with the lay and engaging one end of the spring, a stop, and a link interposed between the rod and stop, said stop effective when the lay approaches front position to resist motion of the rod and thereby move the member relatively to the lay out of operative relation with the reed.

ELBRIDGE R. HOLMES.

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