US909821A - Loom. - Google Patents

Description

A. E. RHOADES & W. I. STIMPSON.

LOOM.

APPLICATION FILED NOV. 18, 1907.

Patented Jan. 12, 1909.

ASHINBTON. a. 1:.

THE NOR UNITED sTATEs PATENT OFFICE.

ALONZO E. RHOADES, OF HOPEDALE, AND WALLACE l. STIMPSON, OF MILFORD, MASSACHU- SETTS, ASSIGNORS TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A OORPO* RATION OF MAINE.

LQOM.

Specification of Letters Patent.

Patented Jan. 12, 1909.

To all whom it may concern:

Be it known that we, ALoNzo E. RHOADES and VVALLAOE I. STIMPSON, citizens of the United States, and residents of Hopedale and Milford, respectively, both in the county of \Vorcester, State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention relates to looms for weaving and more particularly to the means for leasing or dividing the warp into sheets, and it has for its object the production of novel leasing means whereby the leasing members are mounted for independent or differential movement due to variations in the action of the warp, the leasing members being sus tained by the latter and hence being free to conform to such variations, within predetermined limits. Such limits are governed by means which permit necessary or desirable up and down movement of the leasing members, due to the leveling action of the warp in the operation of the loom, and a fore and aft movement is also permitted but of more limited extent, and practically there is no weight upon the yarn except that of the leasing members.

While the leasing members are by our invention permitted all the requisite and inclependent freedom of movement so far as concerns the warp they are maintained in such position with relation to the travel of the warp that a very convenient and efficient arrangement is effected forlocating the controlling detectors of a warp stop-motion and obviating sawing and wearing of the warp threads. Such detectors cooperate with the sheets or divisions of the warp between the leasing members and are provided with fixed guiding means, to permit vertical movement of the detectors while maintaining them in proper position for engagement with a cooperating member upon failure of a warp thread. Such particular location of the stop motion detectors, and fixed guiding means therefor form no part of our present invention, per 86, but the same is particularly well adapted for use in connection with our novel leasing means.

In connection with the means for limiting the warp induced movement of the leasing members we have provided means to limit endwise movement of such members, and we have also provided for vertical adjustment of the limiting means to vary the descent of the detectors relative to the feeler which cooperates with a released detector.

The various novel features of our invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a transverse section of a sufficient portion of a loom, with one embodiment of our present invention applied thereto; Fig. 2 is an enlarged front elevation, centrally broken out, of the leasing means and the adjacent stop motion detectors and their guiding means; Fig. 3 is a vertical section on the line 3-3, Fig. 2, looking toward the left; Fig. l is a side elevation of a portion of the apparatus shown in Fig. 2, viewed from the right hand side thereof.

Referring to Fig. 1, the lay A, harnesses H, whip-roll or bar lV, and upright stands A erected opposite each other on the loom sides between the whip-roll and the harnesses, may be of substantially well known construction.

Upon each stand A is mounted the foot (1 of a casting having a depending extension a provided with a bearing for a feeler rockshaft f provided with arms f for a feeler f, vibrated under normal conditions by suit able mechanism, not of our invention and well known in the art.

To the front. and rear faces of the two opposite extensions (4 are fixedly secured upright, parallel plates a see Fig. 3, which form guiding means for slotted stop motion detectors (Z, shown as arranged in two parallel banks or series and depending from the warp threads, and normally held thereby above the path of movement of the feeler f, see Figs. 1 and In accordance with our present invention we separate the warp into sheets or divisions w, w, by leasing members, shown herein as cylindrical rods or bars 1, 2, vertically sustained by the warp and free to move up and down therewith, the leasing members being located one behind the other between the harnesses and the whip-roll, as shown in Figs. 1 and 3.

The lease rods are movable independently of each other and are free to partake of the up and down movement of therwarp and can accommodate themselves to the leveling action of the war during the operation of the loom, as will be manifest, being in that respect self adjusting, and we have provided means'to retain them in their proper places with relation to the stop motion detectors and the harnesses'while permitting a suflicient amount of freedom to accommodate themselves to changes in the warp movement. To offset this we provide guide members 3, one at each side of the loom, shown each as a flattened, plate-like casting having thereon a circular apertured flange 4 and a vertically elongated apertured flange 5, the flanges extending laterally from the inner side of the plate 3. V

The guide members are pivotally mounted upon a transverse rod 6 the projecting ends of which extend through and are secured in supports 7 held by nuts 8, F ig. 4, the guide members 3 being positioned on the rod between the supports 7 and nuts 8 on the rods at the inner sides of said guide members. Said supports 7 cross the apertured portions 4 and5 of the guide members and serve to limit endwise movement of thelease rods 1 and 2, which latter are loosely extended into the flanges 5 and 4 respectively, as shown. 7

The aperture in the flange 4 is made slightly larger in diameter than the lease rod '2, see Fig. 3, so that the rod can have some play therein, this rod in practice having more movement than the rod 1, owing to the motion of the whip-roll, but as the guide members 3 are pivotally mounted and practically counterbalanced they rock as the lease rod 2 moves vertically without bringing any weight upon the warp.

The front lease rod 1 is practically independent of the guide members and of the vertical movements of the lease rod 2, owing to the play afforded by the elongated flanges 5, as will be obvious. The lease rods are 7 thus aflorded' very considerable freedom of movement, the front lease rod being sub stantially independent in its movements,

while the rear rod 2 not only can move with relation to the guide members 3 but said members can move freely on their supportfi, owing to their being counterbalanced. At the same time the movement of the lease rods in a fore and aft direction is properly limited by the guide members.

The rod 6 extends beneath the warp at the crossingpoint of the threadsforming the sheets 20,11). thereof, and serves as a warp. rest, intermediatethe two series of detectors in the arrangement herein illustrated.

Upon each bracket a is formed an upright web a best shown in Figs. 2 and 4, having a central depressions and vertical slots a the latter receiving threaded studs 9 extended outwardly from the supports 7, nuts 10, Fig. 4, when screwed up on said studs clamping the supports firmly andfixedly in vertically adjusted position on the webs a Byloosening the nutsthe supports can be moved up or down to afford more or less drop of the detectors before engagement by the feeler, and also to change the position of the guide members 3 mounted thereon accordlng to the position of thewarp, the de pressions a affording clearances'for the retaining nuts 8 on the rod 6 connecting said guide members.

Our invention isnot restricted to the particular form of stop motion detectors shown nor to the precise arrangement, and changes may be made in the details and specific struc-'' ture of the means for controlling the leasing members without departing from the spirit and scope of our invention as expressed in the appended claims. a I 7 Having fully described our invention, whatrwe claim as new and desire to secure by Letters Patent is 2+ 1. In a warp stop-motion for looms, a plurality of leasing members sustained by the warp-threads and mounted for independent movement upand down or fore and aft, and,

angularly movable means to limit such movements. sustained independently ofthe warpsupported by the warp threads, and guidin means for the detectors mounted indepen ently of the limiting means for the leasing members. r V

3. The combination, with a plurality of independently movable leasing members sustained by the warp threads, of movable means to permit limited differential movement of said members up and down or in the direction of warp travel, and separate, stationary means to limit endwise movement of said leasing members. 7

4. The combination, with a plurality of independently movable leasing members dividing the warp into sheets and mounted for up and down movement therewith and sustained thereby, of angularly movable means loosely cooperating with and to limit fore and aft movement of the leasing members while permitting a greater up and down movement for one member than for the other.

5. The combination, with a plurality of independently movable leasing members dividing the warp into sheets and mounted for up and down movement'therewith and sustained thereby, of pivotally mounted, apertured guides through which the ends of said members extend freely, to limit the movements thereof due to varying action of the warp while permitting some movement of the leasing members relatively to the guides, and vertically adjustable means to sustain the guides.

6. In a 100111, in combination, a plurality of leasing members sustained by the warp threads and capable of warp induced movement up and down independently of each other, and pivotally mounted guides for and to limit such movements of the leasing members, each guide having a vertically elongated and a circular aperture to respectively receive loosely the adjacent ends of the leasing members.

T. In a loom, in combination, a plurality of lease rods dividing the warp into sheets and vertically sustained thereby and mounted for independent movement up and down, pivotally mounted, counterbalanced guides apertured to loosely receive the ends of the lease rods, each guide having one of its apertures elongated vertically to permit independent movement of the rod extended thereinto, relatively to the other rod, and vice versa, and means other than said guides to limit endwise movement of the lease rods.

8. In a warp stop-motion for looms, a plurality of leasing members sustained by the warp-threads and mounted for independent movement up and down or fore and aft, guides to loosely coiiperate with the ends of and limit such movements of the leasing members, a fixed rod upon which the guides are pivotally mounted, said rod forming a fixed rest for the warp threads at their crossing point, and stop motion detectors supported on the warp threads at front and rear of said rest,

9. The combination, with a pair of cylindrical lease rods supported by and dividing the warp into sheets, of opposite pivotally mounted guide members provided with vertically elongated apertures for the front rod and circular apertures for the rear rod, whereby warp induced movement of said lease rods is permit-ted independently of each other, their ends loosely entering the apertures, the guide members being counterbalanced to move freely on their pivots.

10. The combination, with a pair of cylindrical lease rods supported by and dividing the warp into sheets, of opposite apertured guide members to loosely receive the ends of the lease rods, the front apertures being vertically elongated, and vertically adjustable plates between which said guide members are pivotally mounted, the plates being opposite the ends of and limiting endwise movement of the lease rods.

11. The combination, with a pair of eylindrical lease rods supported by and dividing the warp into sheets, of opposite, apertnred guide members to loosely receive the ends of the lease rods, the front apertures being vertically elongated, vertically adjustable plates between which said guide members are located, the plates being opposite the ends of and limiting endwise movement of the lease rods, a transverse rod connected with the plates and on which the guide members are pivotally mounted, said transverse rod constituting a warp rest, and stop motion controlling detectors cooperating with the two sheets of warp between the said rod and the front and rear lease rods, respectively.

12. The combination, with a pair of independently movable lease rods sustained by the warp threads, of pivotally mounted, counter-balanced guide members loosely 00- operating with the lease rods and limiting movement thereof fore and aft, said guide members having openings for one of the rods permitting movement of the same relative to the other lease rod and to the guide members, and vice versa.

18. The combination, with front and rear lease rods sustained by the warp threads, of rocking guides apertured to receive said rods, the apertures for the front lease rod being vertically elongated to permit movement of the front rod independent of the rocking of the guides or of the movement of the rear lease rod.

let. The combination, with front and rear lease rods sustained by the warp threads, of counterbalanced, pivotally mounted guides loosely cooperating with the rear lease rod and rocking with up and down movement thereof, said guides also cooperating with the front lease rod to limit fore and aft movement thereof while permitting free up and down movement of the rods independently of each other.

Intestimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

lVitnesses GEORGE OTIS Dnarnn,

ERNEST WV. VVoon.

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