Laser targets for roller alignment

Details Laser targets for roller alignment Laser targets for roller alignment

1979-09-13

1982-03-16

Stephan, Steven L.

Geometrical instruments

Straight-line light ray type

Rod or target

33286, 33182, G01C 1512, C01B 525

Patent

active

043194060

ABSTRACT:
To align pipe mill rollers and the like both vertically and axially, targets are clamped to the rolls. Each target carries a block formed with a hole, which hole is a fixed distance above the surface of the target which engages the edges of a roll. The block is mounted for transverse movement and carries a horizontally movable indicator which may be aligned with a mark on the center of the roll. A laser instrument is located so that its beam is horizontal and will pass through each hole of each block of each target when the rolls are properly aligned. The targets carry level bubbles to insure vertical positioning of the targets and also may carry supports which engage opposite sides of the roll flanges to insure that the targets are vertical. The workman observes the point where the beam shows on the block and adjusts the bearings for the roll vertically so that the beam is at the level of the hole. The bearings are also adjusted horizontally (axially of the roll) so that the indicator is aligned with the marking on the roll. The bearings for each roll are adjusted in sequence and, when completed, the beam passes through all holes and each indicator is aligned with the center of the roll on which it is mounted.

REFERENCES:
patent: 3599336 (1971-08-01), Walsh
patent: 3634941 (1972-01-01), Roodvoets et al.
patent: 4031633 (1977-06-01), Bjork

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