US1342946A - Picking-motion for looms - Google Patents

Description

R. C. DREHER. PICKING MOTION FOR LOOMS,

APPLICATlONYFILED OCT. 8, 1917.

Patented June 8, 1920;

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R. C. DREHER. PICKING MOTION FOR WW8. APPLICATION HAM 06. a, 191].

lied June 8, 19213,

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IN V EN TOR.

RICHARD C. DREHEB, OF ROCKVILLE, CONNECTICUT.

PICKINGr-IVIOTION FOR LOOlVIS.

remote.

Specification of Letters .Patent.

Patented June 8, 1920..

Application filed October 8, 1917. Serial No. 195,244.

To all whom it may concern:

Be 1t known that I, Riel-mun C. Dnnrmn, a citizen of the United States, residlng at Bockville, in the county of Tolland and State of Connecticut, have inventeda new and Improved Picking-Motion for Looms, of which the following is a specification.

My invention relates more especially to the means for driving the shuttle from one side of the web to the other thereof, and an object of my invention, among others, is to increase the elliciency of the loom by providing a minimum number of parts for throwing or driving the shuttle and that shall be extremely effective in operation.

One form of loom embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings in which- Figure 1 is a plan view of a portion of a loom embodying my invention.

Fig. 2 is a view in section through my improved. loom looking from one side.

Fig. 3 is detail view illustrating the construction of the picker staffs.

Fig. at is a detail view showing one form of means for throwing the picker staffs.

In my improved loom, illustrated and described herein, the picker stafi is so mounted as to be driven directly from a shaft employed for operating other parts of the loom, thus omitting a number of parts, as shafts, gears, straps &c., that are found in many of the looms in use at the present time. As shown herein I make use of the lathe shaft for driving the picker staffs, said staffs 5 being pivotally mounted at 6 on collars 7 surrounding and supported on a lathe shaft 8 and preferably resting against lathe shaft hearings on the side parts 9 of the frame. The picker staffs are each formed in two sections 10-11, one movably telescoping within the other to permit relative changes in position of parts caused by the pivotal movement of the lever and rectilinear move ment of the picker, as shown herein the picker section 10 extending into the other section of the staff. The picker section has a fork shaped end pivotally connected with a picker 12 that is of any usual form and construction and that may be mounted in any suitable manner in or upon a cross bar 13 of the lathe frame. This frame is constructed in a manner common, to looms of this class and the ways for the travel of a shuttle 14:

may be of any suitable construction, the lathe being reciprocated as by means of lathe rods 15 connected with cranks 16 on the lathe shaft 8.

The sections 11 of the staffs have slots or openings 17 within which the collars 7 are located. The openings 17 are preferably formed as by means of straps 18, a pair of which is secured to each of the body parts 19, as by rivets or otherwise, as shown in Fig. 3 of the drawings, the straps being also secured together at their ends opposite the body parts. Anti-friction roller supports 21) are located in the openings 17 and are each adjustably secured in place in any suitable manner as by means of screws 23 extending through a slot 24 in one of the straps 18, said screws being headed to tightt, bind the supports. Rollers 21 are mounted on the supports in position to be engaged by cams on picker stall? operating cam wheels 22 secured to the shaft 8. By thus providing means for adjusting the position of the rollers 21 with respect to the cams 25 the force of movement or throw of the pickers 12 may be accurately adjusted to suit different conditions, and this adjustment also provides means for varying the amount of power that will be transmitted to the pickersby the action of the cams 25 and this is of importance as it often becomes necessary to increase or decrease the power applied to drive the shuttles, owing to changed conditions from various causes in the ope ation of the loom.

I also contemplate a variation in the amount of throw of the pickers and the amount of power applied thereto by variations in the cams on the cam wheels 22 and to this end I make the cams E25 sepa etc from the cam wheels and adjustably mounted thereon. Any suitable means for adj ustably mounting the cams may be employed, in the form shown herein a lever 26 being secured to each wheel and having its end beveled to form the cam 25. These levers are pivotally mounted in the cam wheel and are provided with adjusting screws 27 for determining their positions and for locating them in such positions, lock nuts 28 being employed on the screws for holding them against unintentional turning movement. lVhe'n the picker sticks are operated simultaneously as with the cams arranged as shown herein, the stick opposite the shuttle, if overtaken by the return movement by the shuttle, will act as a buffer to retard the movement of the shuttle and lead it gently up to the end of its path.

In the form of the device shown in Fig. 4 the picker section 29 of the picker staff is secured to the body section 30 thereof as by means of a socket 3]. formed on the body and a screw 32 passing through the socket and picker section. The end of the picker staff enters a recess in the picker 12 within which it. is loosely engaged to prevent cramping action by reason of the pivotal movement of the picker staff and the rectilinear movement of the picker. A roller 33 is rotatably mounted on the picker staff to engage an actuating cam 84 on the lathe shaft 8. The operation of this part of the device will be readily understood from the showing in Fig. 4 of the drawings.

In accordance with the provisions of the patent statutes, I have described the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative, and that the inventionmay be carried out by other means.

I claim: V

1. In combination with the lathe of a loom, a rotatably mounted lathe. shaft, direct connections between said lathe shaft andlathe, a pickerstaff having an opening through which saidlathe shaft extends, said staff being pivotally mounted on said shaft and the latter rotatable within the staff, an; operative connection between said staff and a picker on the lathe frame, and means upon said shaft for driving said staff.

2. In combination with the lathe of a loom, a rotatably mounted lathe shaft, a direct and operative connection between said shaft and lathe, a collar loosely mounted upon said shaft, a picker staff pivotally mounted on said collar and projecting to engage a picker on the lathe frame, and means for operating said staff.

3'. In combination with the lathe of a loom, a rotatably mounted lathe shaft, a direct and operative connection between said shaft and lathe, a collar loosely mounted upon said shaft, a picker staff pivotally mounted on said collar and projecting to engage a picker on the lathe frame, and means upon said shaft for operating said staff.

4.. In combination with the lathe of a loom, a picker slidably mounted on the lathe, a lathe shaft, an. operative connection between said lathe shaft and picker, a collar mounted on said shaft, a picker staff including a body part with straps removably connected extending therefrom on opposite sides of saideollar to'afford a mount for said staff, and means upon said shaft for driving said staff. 7

5. In combination with the lathe of a loom, a picker mounted on said lathe, a picker staff comprising one member and two straps removably secured together and to said member and formed-with an'opening between them, an operating shaft rotatably mounted on the loom frame and extending through the opening. between said straps, means for pivotally mounting said straps, means for operating said staff,'and a con nection between said shaft and a loom member for operating the latter; r

6. In combination with the lathe of a loom, a picker mounted on said lathe, a lathe shaft-operatively connected withsaid lathe, a picker staff pivotally mounted on said shaft and operatively connected with said picker, a disk secured to said shaft, a lever mounted in said disk and having a cam shaped end to engage said picker staff, and adjusting screws engaging opposite sides of an end of said lever to determine its position and hold it in place.

7. In combination with the lathe of a loom, a picker mounted on said lathe, a piv- M g RICHARD, c. DRE- ER.

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