Cutting – Processes – With preparatory or simultaneous ancillary treatment of work
Patent
1985-04-08
1987-03-24
Meister, James M.
Cutting
Processes
With preparatory or simultaneous ancillary treatment of work
83 71, 83170, 83363, 83364, B23D 3307, B23D 3310, B26D 710
Patent
active
046516026
ABSTRACT:
A method and apparatus for shearing logs to form billets includes movable stop at the discharge side of a shear to measure the length of the log passed through the shear. A light beam impinges on a detector when the trailing end of a log passes beyond the light beam to produce a signal concurrently with a signal which is produced by displacement of the movable stop. The concurrent production of these two signals is used to produce a third signal corresponding to a measure of the length of the log. The latter signal is used for determining the sheared length of one or part of a two-piece billet that can be produced from the log-end portion. The log is severed by displacing a movable upper die of the shear beyond a stationary lower die. In one embodiment, a gripper engages and pulls the end of the log from the shear. In a second embodiment, an H-shaped frame extending outwardly at the discharge side of the shear carries a movable stop. In both embodiments, the gripper or movable stop is carried on a movable block that can be moved back and forth along guide rods that are supported by the shear.
REFERENCES:
patent: 3170355 (1965-02-01), Neely, Jr.
patent: 3422711 (1969-01-01), Toney et al.
patent: 4526073 (1985-07-01), Elhaus
patent: 4559854 (1985-12-01), Jurgens
Dziki Jeffrey P.
Harrold Donald T.
Meister James M.
Murray Thomas H.
Poff Clifford A.
Sutton Engineering Company
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