US691578A - Loom. - Google Patents

Description

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UNITED STATES PATENT OFFICE.

IIENRY BARDSLEY, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO CROMPTON & KNOWLES LOOM *vVORKS, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

LOOM.

SPEGIEICATIQN forming part of Letters Patent No. 691,578, dated January 21, 1 902.

Application filed September 25, 1901- Serial No. 76,461. (No model.)

ings.

Loom-shuttles have been provided in some cases with devices for ascertaining automatically the breakage or exhaustion of the weftyarns carried thereby and in other'cases they have been provided with devices for ascertaining when the supply or load of weft-yarn within a shuttle has become used up to a predetermined extent. In both of these classes of cases such shuttles have been furnished also with means to trip into action instrumentalities exterior to the shuttles constructed and operating to occasion a change in the working of the looms, such change involving in some instances an arrest of the motion of a loom and in others the automatic replenishment of the working weft-supply of a loom without terminating the running of the loom.

My invention relates in particular to the devices in a loom which coact more immediately with the trip carried by the shuttle that is at work in such loom and which are brought into action by such trip for the purpose of instituting the change aforesaid in the working of the loom.

The invention consists in the novel combination of parts which I now will proceed to describe with reference to the accompanying drawings, in which latter the same is illustrated.

, In the drawings, Figure 1 represents in end elevation portion of a loom having the invention applied thereto, only such features being shown as are required for the purpose of rendering clear the nature and relations of the invention. Fig. 2 shows the same in plan.

Having reference to the drawings, 1 designates portion of one side frame of a loom; 2, portionof the breast-beam; 3, portion of the lay-beam; 4, the shuttle-box front at one end of the lay-beam; 5, the shuttle-box back at the said end of the lay-beam, and 6 portion of one of the swords of the lay. These parts are'all usual'features of a loom.

In carrying my invention into effect I employ at the rear of the shuttle-box a movable trip 7, which latter is pivoted, as at 8, to a small plate or bracket 9, that is attached to the rear side of the shuttle-box back 5. A contracting spiral spring 10 has one extremity connected with the said trip and the other with the inner portion of the plate or bracket 9, and said spring holds the trip normally in the position represented in Fig. 2, in which figure one edge thereof is in contact with a stop-pin 11, carried by plate or bracket 9, while the forward end of said trip enters the interior space of the shuttle-box and extends into the path of movement of the trip that is carried by the working shuttle. (Not shown.) The rearwardly-projecting portion or tail of the trip 7 serves as a detent, against which is intended to take bearing a pin 12, carried byahorizontally-extending arm 13, fast upon the upper end of a vertical rock-shaft 14, mounted in a bearing 15, carried by the lay at the rear of the lay-beam. The said rockshaft is provided at its lower end with a hunter or dagger 16 and also with a resettingarm 17. The said bunter or dagger 16 has attached thereto one extremity of a contractin g spiral spring 18, (shown in dotted lines in Fig. 2,) said spring having its other extremity connected with a fixed part of the lay. The resetting-arm 17 is designed to coact in the rearward stroke of the lay with a resettingcam constituted bya fixed pin 19, extending upwardly from a bracket 20, which is aflixed to the end frame or loom side 1.

The engagement of resetting-arm 17 with resetting-cam 19 in the rearward stroke of the lay causes the resetting-arm, the rock-shaft 14, the bunteror dagger 16, and the detentarm 13 to assume the positions in which they are shown in Fig. 2. The said parts are held in such positions by the trip 7, which latter is drawn by spring 10 automatically into position to engage with the pin 12, that is carried by the detent-arm 13.

parts are retained in these positions the dagger or bunter 16 is inoperative. Should, how- So long as the ICO ever, the trip device carried by the shuttle engage with the trip 7, which is applied in connection with the shuttle-box, and move the said trip 7 so as to disengage the same from the pin 12, thereby freeing the detentarm 13, the spring 18 will be permitted to act and will turn the rock-shaft 14 and connected parts, placing thereby the dagger or bunter 16 in its operative position.

The dagger or hunter 16 is designed to actuate the mechanism by means of which the change in the working of the loom is brought about. Such mechanism may act either to arrest the loom or to effect automatically the replenishment of the working weft-supply without terminating the working of the loom. More immediately the said dagger in its operative position is caused to engage in the advance of the lay with one arm of the knockoff lever 21 and to turn the said lever so as to dislodge the shipper-handle 22 from its retaining-notch at one end of the slot 23 in the plate 2 1, projecting outwardly from one end of the breast-beam 2. Lever 21 and shipperhandle 22 may be termed for convenience the shipper devices, and in practice they are in operative control of the means for shipping the driving power on and off or of the weft-replenishing instrumentalities, according as the loom may be equipped to operate. In the drawings I have for convenience of representation shown a portion 25 of ordinary belt-shifting mechanism in connection with the shipper 22.

91 is a pin or equivalent stop, which is provided on the plate or bracket 9 for the purpose of preventing the trip 7 from moving too far when its operative end is engaged to actuate the trip by the other trip carried by the moving shuttle.

I claim as my invention- 1. In a loom, in combination, the lay, the spring-actuated trip 7 mounted thereon and adapted to be operated in practice by a coacting trip carried by the loom-shuttle, the vertical rock -shaft carried by the lay and provided on its upper end with the horizontally-extending detent-arm engaging with the rear end of said trip first mentioned, a dagger or hunter on the lower end of said rockshaft, a resetting-arm on said rock-shaft, a spring to cause said dagger or hunter to assume its operative position, shipper devices operated by the advance of said dagger or hunter with the lay when in its operative position, and a resetting-cam cooperating with said resetting'arm.

2. In a loom, in combination, the lay," the spring-actuated trip '7 mounted thereon and adapted to be operated in practice by a coacting trip carried by the loom-shuttle, the vertical rock-shaft carried by the lay and provided on its upper end with the horizontally-extendingdetent-arm engaging with the rear end of said trip first mentioned, a dagger or hunter on the lower end of said rockshaft, a resetting-arm on said rock-shaft, a spring to cause said dagger or hunter to assume its operative position, the lever 21 operated by the advance of said dagger or hunter with the lay when in its operative position, the shipper operated by said lever, and a resetting-cam cooperating with said resettingarm.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY BARDSLEY.

Witnesses:

H. E. STAFFORD, E. NIsBET.

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