Cutlery – Pipe and rod cutters – Rotary
Patent
1986-04-28
1987-05-12
Schran, Donald R.
Cutlery
Pipe and rod cutters
Rotary
30 96, 30102, 83830, 83743, 83924, 82 701, 29746, B23D 2100, B26D 316, B26D 328
Patent
active
046638440
ABSTRACT:
The present invention relates to a device for cutting the casing on baked carbon electrodes. The device comprises a ring (1) which is freely suspended about the electrode. At least two clamping shoes (7) having vertical extending cutting edges (17) are pivotably suspended to the ring (1). The clamping shoes (7) can be pressed against the casing (3) by means of first hydraulic cylinders (14). On the top of the ring (1) a chain (18) having a plurality of cutting wheels (19) is arranged. One end of the chain (18) is secured to a second hydraulic cylinder (26) and the other end is secured to the piston (27) of the second hydraulic cylinder (26), whereby the chain (18) can be tightened about the periphery of the electrode (2). A third hydraulic cylinder (29) is secured to the ring (1) while the piston (28) of the third hydraulic cylinder (29) is secured to the claim (18), whereby the chain (18) can be moved backwards and forwards along the circumference of the casing (3).
REFERENCES:
patent: 779305 (1905-01-01), Oliver
patent: 930755 (1909-08-01), Holland
patent: 1279022 (1918-09-01), Scott
patent: 1665089 (1928-04-01), Gaffney
patent: 3117375 (1964-01-01), Meese
patent: 3763559 (1973-10-01), Aybjer
Elkem a/s
Schran Donald R.
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