Collapsible alignment apparatus for automotive vehicles

Abstract From the Canadian patent

Two rectangular housings are mounted in a pair of spaced recesses in a garage floor to have cover means thereon moved to closed positions flush with the floor surface. Mounted in one end of each housing beneath a first cover is a rotatable wheelsupporting pad, which is slidable longitudinally of the housing and is reciprocable vertically by a pneumatically operated scissors jack. Each housing has pivoted on its opposite end a second cover which carries on its inside surface a laser a mirror, and a conventional alignment chart for denoting toe in toe out, camber, etc. all of which items are disposed within one section of the housing when the pivotal cover is closed. When the pivotal covers …