Metal deforming – By deflecting successively-presented portions of work during... – With modification or control of temperature or work – tool or...
Patent
1977-09-13
1978-09-12
Combs, E. M.
Metal deforming
By deflecting successively-presented portions of work during...
With modification or control of temperature or work, tool or...
72342, 72364, 72378, B21F 2100
Patent
active
041127250
ABSTRACT:
A method of hot-stretching a cable and an apparatus for practicing the same in which first, second and third capstans of different diameters, having a common rotating shaft, and having grooves on the circumferential surfaces thereof for winding the cable a plurality of turns are provided in parallel between a stranding machine and a winding machine but on the side of the stranding machine. First and second guide pulleys are provided in parallel on the side of the winding machine, and the cable is wound around said winding machine through the first capstan, the first guide pulley, the second capstan, the second guide pulley and the third capstan. A front heat treatment equipment for heating the cable is provided between the first and second capstans, and a rear heat treatment equipment for heating the cable is provided between the second and third capstans. The stranding machine is operated in such a manner that the operating speed of the stranding machine is increased to a predetermined low speed after start, and after the predetermined low speed is maintained for a predetermined period of time, the operating speed is gradually increased to the rated operating speed. The front heat treatment equipment and the rear heat treatment equipment is selectively operated as required, while a part of the cable lying between the first and second capstans and a part of the cable lying between the second and third capstans is selectively subjected to a predetermined tension, so that the whole length of the cable stranded until the operating speed of the stranding machine reaches the rated operating speed after starting is continuously and effectively subjected to a hot-stretching treatment.
REFERENCES:
patent: 3871205 (1975-03-01), Fenton
patent: 3964938 (1976-06-01), Tolliver et al.
Combs E. M.
Sumitomo Electric Industries Ltd.
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