US817806A - Harness-motion for looms. - Google Patents

Description

PATENTED APE 1'7; 1905.

C. F, ROPER, HARNESS M0 T N FOR LOOMS.

APPLICATION FILED FEB.13,1905

No. 817,806. PATENTED APR. 17, 1906.

G. P. ROPBR. HARNE$S MOTION FOR LOOMS.

APPLICATION FILED PEB.13,1905.

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J14 f D f Ina/621F5 v 5V1 Zn 68868 I zarzes Z'TRorer No. 817,806. PATENTED APR. 17, 1906.

(J. F. ROPER'. HARNESS MOTION FOR LOOMS.

APPLIOATION FILED FEB. 13, 1905.

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WII/I/I/ I Wii'uesses &\ g fgjz n I /5 area per Fig. 8 is a detail vertical section CHARLES F. ROPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY. MAINE.

OF PORTLAND, MAINE, A CORPORATION OF HARNESS-MOTION FOR LOOMS.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed February 13 1905. Serial No. 245.453.

To all whom, it may concern:

Be it known that 1, CHARLES F. Korea, a citizen of the United States, residing at Hopedale, in the county of WVorcester and State of Massachusetts, have invented cer tain new and useful Improvements in Harness-Motions for Looms, of which the following is a specification.

The present invention consists in certain improvements upon the side-cam harnessmotion set forth in Letters Patent of the United States No. 770,116, granted September 13, 190 1, to the Draper Company. The present improvements and their relation to the harness-motion of said patent are illustrated in the accompanying drawings, in which Figure 1 is a front elevation of a harnessmotion embodying the various features of the invention in their preferred form, so much only of the loom being illustrated as is necessary to show the application of the invention thereto. Fig. 2 is a view of one of the metallic heddles carried by the heddleshaft. Figs. 3 and 4 are detail sectional views taken on the line 3 4 of 6, the two views showing the cam R, the wheel Q turned to different positions, and hence showing different configurations of the cam B. Fig. 5 is a detail view of one of the selector-cams, the sleeve and shaft upon which the cam is mounted being shown in cross-section. Fig. 6 is a side view of the loom. Fig. 7 is a detail horizontal section on the line 6 6 in 1. on the line 8 S in Fig. 7. Fig. 9 is a detail View of a camlever, the two coupler-bars connected there with, the reciprocating actuator, and cooperating features, the parts being shown in the positions which they assume during the dwell-of the actuator near the limit of its upward movement, and one of the coupler-bars being in a position to be engaged by the actuator during its downward movement. Fig. 10 is a detail view of one of the springs which acts upon one of the coupler-bars. Fig. 11 is a face view of the harness-cam from which the reciprocating movements are imparted to the actuator. Fig. 12 is a view similar to Fig. 9, showing the positions which the parts assume when the actuator is at the middle of its downward movement, one of the couplerbars being engaged by the actuator and the other coupler-bar being held out of engagetions which the parts assume when the actuator is at the limit of its downward move ment. Fig. 14 is a detail sectional view taken on the line 14 14 of Fig. 12, illustrating the manner in which the projections on the couplerbars cooperate to hold one bar out of engagement with the actuator while the other is in engagement therewith and Fig. 15 is a detail section of one of the side bars of the heddleshaft, showing its relation to its guide and said shaft. Figs. 1, 6, 9, 11, 12, and 13 are drawn to the same scale, while the remaining figures are on larger scales.

For the sake of clearness there is illustrated in the drawings only one heddleshaft and the connections between it and the actu ator, it being understood that any desired number of heddle-shafts may be employed.

Each heddle-shaft A is carried by two opposite reciprocating links B B and supports a series of metallic heddles O of well-known construction, each having an elongated slot a, through which the cross-bar A extends. The links B are guided vertically by fixed guides D D. As shown in Fig. 7 each guide D is wide enough to guide all of the links and heddle-shafts employed.

The reciprocating links B B at their upper ends are connected to bell-crank levers E and F, which are connected together by a link I). The bell-crank lever F has rolls 0 and cZ,which embrace the cam-surface of a pivoted camlever G, to the opposite ends of which are pivotally connected coupler-bars H and I. The cam-lever G has a rest 6, which locks with either roll d or c. The two coupler-bars H and I are adapted to engage a vertically-reciprocating actuator J, which is located upon a slide K, adapted to slide vertically upon fixed guide-rods ff. Each coupler-bar H and I has a notch g, adapted to cooperate with the actuator J.

The actuator-slide K is connected by a piv oted rod V to one end of a link W, which at its opposite end. is pivoted to the framework of the loom. Only a portion of this link l/V is shown, since it is pivoted to the framework of the loom in substantially the same way as is shown in said patent in connection with the corresponding link thereof. This rod V has a slot through which the cam-shaft U of the loom extends. This cam-shaft has at the outer side of the loom beyond the rod V a cam L, with which cooperate rolls a: and w, carried by the rod V, this cam L being angularly adjustable upon the cam-shaft U by means of the disk T and bolts 1;.

The coupler-b ars H and I are brought into cooperation with the actuator J by means of automatic selecting devices. Each pair of coupler-bars H and I belonging to one heddleframe is moved away from the actuator J by means of a single cam-actuated follower M, but each coupler-b ar H and I is moved toward the actuator J by its own spring-actuated follower 0. Thus in a five-harness loom there would be five of the cam-actuated followers M and ten of the spring-actuated followers 0. Each cam-actuated follower M slides hori- Zontally between guide-plates i, fixed to the rods f f, and is controlled by a selectorcam N on a sleeve P upon the shaft 0, mounted in a fixed bracket p. This shaft 0 has a beveled gear 1", which engages a beveled gear 8 on a vertical shaft t,having at its lower end a starwheel Q, which engages with a cam R on. the crank-shaft S of the loom. The two coupler bars H and I are prevented from simultaneously engaging the actuator J by cooperating cams h, with which they are respectively equipped.

The devices as thus far described are substantially the same in their organization and mode of operation as the corresponding devices in the aforesaid patent, No. 770,116, excepting as hereinafter stated.

The first of the present improvements relates to the connections between the actuatinglevers E and E and the heddle-shaft A. In said Patent No. 7 70,116 the heddle-shaft is connected to rectilinearly-moving side bars which are connected to said levers by links. In the present construction the side bars B are themselves links directly pivoted to the respective levers E and E. As shown in Fig. 15, each link B has a socket in which the end of the shaft A loosely fits, and the link B has a rocking face on its outer side which comes in contact with the guideway D. This construction is not only simpler than that of said patent, but it obviates any binding of the heddle links and insures their movement with the minimum friction. The loose connection between the shaft and the links B compensates for the swing of the links due to their direct pivotal connection with the levers E and E.

The second. of the present improvements relates to the spring-actuated followers 0, which cause the engagement of the couplerbars H and I with the actuator J and maintain the coupler-b are in cooperation with the selecting-cam N. Each follower O is a bent lever and it is pivotally connected to the loomframe and has a toe j, which bears against one of the coupler-bars and at its other end it is engaged by a coiled spring 7c. Each spring is connected at opposite ends to metallic loops Z, one of which is hooked over the corresponding follower O,while the other (see Figs. 7 and 10) is hooked over a fixed finger m. This construction enables coiled springs, such as those at 7c, to be employed, which maintain their elasticity indefinitely and insure the prompt and certain action of the coupler-bars H and I. The metallic loops Z are readily attached to and removed. from the follower-levers O and the fixed fingers m, thus facilitating the replacement of springs 7c in case of need and also facilitating rendering any harness inoperative in case it is desire not to use the same.

I claim as my invention 1. A harness-motion for looms having, in combination, a heddle-shaft and reciprocating links at opposite ends thereof, a substanti ally vertical guide for each ofsaid links, and an actuating-lever pivotally connected directly to each of said links.

2. A harness-motion for looms having, in combination, a heddle-shaft and reciprocating links at opposite ends thereof, each link being loosely connected with one end of said shaft, a substantially vertical guide for each of said links, and an actuating-lever piv otally connected directly to each of said links.

3. A harness-motion for looms having, in combination, a heddle-shaft, two actuatinglevers therefor, a reciprocating link pivotally connected at one end to one of said actuating-levers and at its other end being loosely connected to one end of said heddle-shaft, each of said links having a rocking face on its outer .lower end, and a substantially vertical guide for the lower end of each link which engages said rocking face.

4:. A harness-motion for looms having, in combination, a heddle-shaft and actuating coupler bar therefor, intermediate connections between said heddle-shaft and said coupler-bar, an actuator adapted to codperate with said coupler-bar, a cam for moving said coupler-bar in one direction and aspringactuated follower for moving said coupler-b ar in the opposite direction, said spring-actuated follower comprising a pivoted lever and a spring acting upon said lever.

5. A harness-motion for looms comprising a coupler-bar in combination with a pivoted follower-lever bearing against said couplerbar, a fixed finger, and metallic loops adapted to be placed over the ends of said followerlever and finger respectively, and a coiled spring connecting said metallic loops.

CHARLES E. ROPER.

Witnesses:

GEORGE Orrs DRAPER, EnNEs'r W. Woon.

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