US2131172A

US2131172A - Drawing frame, roving frame, and like textile frames

Info

Publication number: US2131172A
Application number: US196822A
Authority: US
Inventors: Fraser Gordon Scott
Original assignee: Douglas Fraser & Sons Ltd
Current assignee: Douglas Fraser & Sons Ltd
Priority date: 1937-02-27
Filing date: 1938-03-19
Publication date: 1938-09-27
Anticipated expiration: 1955-09-27
Also published as: GB492808A

Description

Sept. 27, 1938. e. s. FRASER 2,131,172

' DRAWING FRAME. RQVING' FRAME AND LIKE TEXTILE FRAMES Filed March 19, 1938 Patented Sept. 27, 1938 UNITED STATES DRAWING FRAME, ROVING FRAME, AND LIKE TEXTILE FRAMES Gordon Scott Fraser, Arbroath, Angus, Scotland,

assignor to Douglas Fraser & Sons Limited,

Arbroath, Angus, Scotland, a corporation of Great Britain Application March 19,

1938, Serial No. 196,822

In Great Britain February 27, 1937 3 Claims.

This invention relates to improvements in drawing frames, roving frames, and like textile frames as commonly used in the treatment of bast fibres, e. g., fibres of jute, flax or hemp, and has 5 for an object to provide an improved mounting of the slip rollers or retaining pressing rollers in such a frame.

In existing constructions the slip rollers are usually closely fitted in rows in end to end relation so that they may be in correct alignment, it may be with the interposition of distance pieces of the same diameter where this is required to suit the pitch of gill in use. These rollers are relatively heavy, and the operative is liable to have his or her fingers nipped when manipulating such rollers in the event of a sliver running out and requiring to be replaced by a fresh sliver.

In the improved construction according to the present invention the slip rollers are so mounted that they may be more conveniently raised and removed when required.

According to the invention, in a drawing, roving or like textile frame, there is provided, for lifting each slip roller, a lever presenting a laterally projecting pin which enters with substantial clearance an axial bore in the slip roller, the arrangement being such that the slip roller is normally free to co-operate with the associated retaining rollers but is lifted clear of the retaining rollers when the lever is rocked in the appropriate direction.

The invention is illustrated, by way of example, in the accompanying drawing in which Fig. 1 is a part elevation part vertical section and Fig. 2 is a plan view, showing parts of a textile frame and a preferred construction of the slip roller lifting means.

As shown, I denotes the usual fixed rod carrying sliver guide brackets 2. Secured in spaced relation on the rod 1 are stop brackets, such as indicated at 3, each presenting an angularly spaced pair of stops 3 and 3 Pivotally mounted on the rod 1 are pairs of levers 4, the levers of each pair being spaced apart on the rod I by a stop bracket 45 3. Each lever 4 carries a laterally projecting pin 5 which enters with substantial clearance an axial bore 6 in a slip roller 1, so that, in the normal or lowered position of the lever 4, the

roller 1 is free to co-operate with the retaining rollers 9 and I0. When, however, the lever is rocked in the direction indicated by the arrow A in Fig. 1 by manipulation of a handle or extension 4 integral therewith, the respective slip roller 6 is lifted away from the retaining rollers 9, l and is held in its limiting raised position shown in dotted lines in Fig. 1. Provided on each lever 4 is a snug 8 which, when the lever is in normal or lowered position as shown in full lines in Fig. 1, with the slip roller 1 free to co-operate with the rollers 9, I0, engages the respective stop 3 and so holds the lever in lowered position with the pin thereon clear of the peripheral wall of the bore 6. In the limiting raised position of the lever 4 the snug 8 engages the stop 3 so that the lever with the slip roller is held inraised position, in which latter position the slip roller can be readily slipped off the pin 5, and any lap around the roller can be unrolled or cut off. Further, a fresh sliver may be rapidly and readily introduced in the raised position of the slip roller.

I claim:--

1. In a drawing, roving or like textile frame, in combination with retaining rollers, slip rollers co-operating with said retaining rollers, each slip roller formed with an axial bore, a lever for lifting each of said slip rollers, said lever presenting a laterally projecting pin which enters with sub,- stantial clearance the axial bore in the respective slip roller, said slip roller being normally free to co-operate with the associated retaining rollers but adapted to be lifted clear of said retaining rollers on rocking movement of said lever.

2. In a drawing, roving or like textile frame, the combination recited in claim 1 in which the permissible angular movement of each lever is limited by a pair of stops one of which serves to sustain the lever in lowered position and the other of which serves to sustain the lever in raised position.

3. In a drawing, roving or like textile frame, the combination recited in claim 1 in which the levers are pivotally mounted on the rod which carries the sliver guide brackets of the frame,

said rod also carrying stop brackets presenting spaced stops engageable by snugs on the levers. GORDON SCOTT FRASER.