Textiles: spinning – twisting – and twining – Apparatus and processes – Doffing or donning
Patent
1987-01-28
1988-10-18
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Doffing or donning
57267, 57274, 294 93, 294 981, D01H 904, B66C 146
Patent
active
047777923
ABSTRACT:
The gripping device comprises at least one gripper which can be inserted into the tube and is formed from two elements which are mobile axially one in the other and are provided with frusto-conical ends which cooperate in such a manner that the axial movement of the inner element causes the outer element to expand and to engage under pressure with the tube for the purpose of its replacement. Two friction discs supported in an axially mobile manner are associated with the gripper and are subjected to the action of a spring in order to press a lower support element of the discs against the tube in order to retain it and allow exact keying of the tube on to the rotary drive element. The device is particularly suitable for cops.
REFERENCES:
patent: 2962856 (1960-12-01), Ingham, Jr.
patent: 3462934 (1969-08-01), Schulz et al.
patent: 3599413 (1971-08-01), Nimtz et al.
patent: 3633959 (1972-01-01), McCollough
patent: 3835633 (1974-09-01), Klein
patent: 3895482 (1975-07-01), Schulz et al.
patent: 4472934 (1984-09-01), Kriechbaum et al.
Fratelli Marzoli & C. S.p.A.
Petrakes John
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