Bobbin holding device in a doffing apparatus

Details Bobbin holding device in a doffing apparatus Bobbin holding device in a doffing apparatus

1980-01-31

1982-07-27

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Doffing or donning

294 87R, D01H 902, B66C 146

Patent

active

043410677

ABSTRACT:
A bobbin holding device for holding at least one bobbin includes a hollow body having a bobbin receiving opening and connected at a base portion thereof to a doffing bar of a bobbin doffing and donning apparatus, a bobbin holding member disposed in the body and movable radially relative to the bobbin receiving opening between a projected position and a retracted position, and a flexible diaphragm disposed in the body in fluid tight relation with respect to the bobbin holding member for applying a fluid pressure on the bobbin holding member to move the same into the projected position. The bobbin holding device further includes a block member disposed between the flexible diaphragm and the doffing bar, the block member being formed with a fluid passage(s) to supply a pressurized fluid to the diaphragm without passing it through the doffing bar.

REFERENCES:
patent: 1810754 (1931-06-01), Buddecke
patent: 3059405 (1962-10-01), Ingham, Jr.
patent: 3367098 (1968-02-01), Schulz
patent: 3462934 (1969-08-01), Schulz et al.
patent: 3633959 (1972-01-01), McCollough et al.
patent: 3667204 (1972-06-01), Burgermeister et al.
patent: 3808788 (1974-05-01), Viglione
patent: 4036001 (1977-07-01), Tamai et al.
patent: 4120526 (1978-10-01), Rohrer

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