Conveyors: power-driven – With means to facilitate working – treating – or inspecting... – Condition responsive control of conveyor or station apparatus
Patent
1989-03-09
1991-03-05
Dayoan, D. Glenn
Conveyors: power-driven
With means to facilitate working, treating, or inspecting...
Condition responsive control of conveyor or station apparatus
1984642, 250223R, B65G
Patent
active
049970771
ABSTRACT:
This invention relates to a method of and apparatus for the positioning of thick slabs (2) to be introduced into a furnace, particularly into a walking-beam furnace, the positioning being effected with the aid of optical devices (5, 9, 10) and electronic devices (11, 12). By this method, at each lateral region opposite the furnace mouth (3), onto the upper surface of a slab (2) and at the region of its end faces (102, 102'), there are projected at least two blades of light (6, 7, 8) of a given length, which are normal to the direction of entrance and advance into the furnace and parallel to each other, the ends of which are perfectly aligned on a straight line which is parallel to the direction of entrance and advance into the furnace, the blades (6, 7, 8) producing parallel lines of light (106, 107, 108) on the surface of the slab (2), the lines being interrupted at the end edges (102, 102') of the slab. The deceleration of the slab transporting movement, and the stoppage thereof, is determined with the aid of electronic devices (11, 12) as a function of the length of the lines of light (106, 107, 108).
REFERENCES:
patent: 3096871 (1963-07-01), Anderson
patent: 3109391 (1963-11-01), Lefever
patent: 3242342 (1966-03-01), Gabar
patent: 4179707 (1979-12-01), Sjodin
patent: 4188544 (1980-02-01), Chasson
patent: 4228886 (1980-10-01), Moran
patent: 4384303 (1983-05-01), Brenke et al.
patent: 4435837 (1984-03-01), Abernathy
Fabbrini Alessandro
Meini Bruno
Scarsi Giovanni
Dayoan D. Glenn
Italimpianti Societa Italiana Impianti P.A.
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