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156 
LAYCOCK ENGINEERING LTD.
Page 80
Page 81
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Victoria Works,
SMhili es' elffihnuds,tl .
T AYCOCK Optiline equipment enables
wheel and steering alignment to be checked optically, corrected, and rechecked in a short space of time. This unit consists of a screen assembly, a pair of turntables and two projectors. The screen assembly, which can be permanently fixed to a garage wall at floor level, can be used with a fourpost lift or installed in various other ways. Two turntables accommodate all standard track widths, allowing vehicle wheels to rotate freely under predetermined level conditions. The projectors attach to the wheel rims of the vehicle under test. The equipment is also supplied with a checking rod for periodic projector inspection.
The four-point projectorsthrow an intense, sharply-defined light beam on to the screen panel, from which angles of alignment can be accurately read. Readings can be obtained for toe-in, camber, king-pin inclination, castor and toe-out on turn angles. The projector lamps used are 6 V, 45 W and double light condensers ensure that the light image can be seen under all conditions.
Singleand twin-beam models are available and the equipment can be used in pit installations, with a vehicle lift, or in sunken front-end installations.
Laycock's Mechaline gauge measures camber, castor and king-pin inclination. It tits on to the wheel rim, full adjustment being provided for all sizes of wheel. In cases where the wheel rim profile will not allow the support to clamp on, a T-piece is available to hold the gauge in the correct position. The scales are screw adjusted to give exact measurement and the gauge arm incorporates a spirit level to ensure accurate readings. The Mechaline toe-in gauge measures toe-in angles and is used as a first operation in conjunction with the camber, castor and king-pin inclination gauge. This toe-in gauge incorporates a 5>: magnified reading scale.
Features of the new Compact Aligner made by Laycock are its mobility and ease of use. it is 3 ft. long, 1 ft. 10 in. wide and 2 ft. 4 in. high, weighing 230 lb. When not in use two portable screens are mounted on each side of a trolley that houses the complete equipment. Two projectors are mounted on top of this and two turntables are housed in built-in shelves within the unit. The trolley runs on two 7-in, rubbertyred wheels.
Both portable screens slide easily to accommodate varying vehicle track widths, and a spirit level on each screen checks that the screens have been positioned horizontally. Each is free-standing and is sited in front of the wheel to be aligned; an integral distance rod is provided. To make fine screen adjustment easier a micro-adjustment knob is built in to the screen assembly.
The Compact Aligner equipment runs on a power supply of 200/250 V; it is suitable for connection to a 13-amp. or 15-amp. power point. A built-in transformer in one screen supplies low voltage current (6 V) to the projectors.