Abstract: A vehicle alignment system uses transverse, longitudinal and vertical bars mounted on a vehicle and equating to X, Y and Z axes for establishing the dimensions of the vehicle, which dimensions are then compared to the vehicle engineering specifications. The transverse bars are connected to the underside of the vehicle and, to enable quickness and ease of transferring the alignment system between vehicles, quick connect fittings extend between the transverse and longitudinal bars. Additional supports extend between the longitudinal bars and a base surface. The system is arranged so that transverse bars in a path of entry and exit of the vehicle can be readily removed and the vehicle removed and replaced, while maintaining the alignment system substantially set up and ready for use. The process improves the speed of use of the system by substantially alleviating the dismantling previously required.

Abstract: A hole gauge arrangement is used for determining the distance of a vehicle fixture hole from a datum plane established with respect to the vehicle. The hole gauge arrangement includes a set rod with a die wheel having bores corresponding to the various sizes of fixture holes and also includes a measurement rod. By reference to a table, the desired distance from the datum plane to the fixture hole is established on the set rod and the measurement rod matched to the distance of the set rod and the hole diameter. The measurement rod is then transferred to support structure mounted in the datum plane and the distance difference, if any, between the measurement rod tip and the fixture hole is noted as an indication of dislocation.

Abstract: An apparatus and method for determining the proper position of misaligned vehicle parts utilizes an X, Y and Z coordinate system to provide a proper point of position, or alignment, of vehicle parts which are identified in tables by such coordinates. The apparatus includes a framework which is established about the vehicle by transverse bars, datum plane bars, cross bars and a vertical standard, all with scale indicia, and forming a point of origin as on a graph. Lasers emitting planes of visible light are mounted on the datum plane bars and cross bar and project mutually perpendicular, intersecting planes of light. A laser is also mounted on the standard to project a horizontal plane of light that intersects the other two light planes and establishes a point capable of definition by X, Y and Z coordinates.

Abstract: A relatively lightweight, rigid, mobile work rack for correcting and aligning misshapen vehicle frame and body portions comprises spaced, parallel beam members and a central open space for unhindered access which extends the entire length of the rack. Front and rear pairs of legs individually or in combination between pairs swing up and down to selectively lower the entire rack or to tilt either the front or the rear end. The legs are mounted so that the entire rack fully lowers to rest upon the work shop floor and raises to a handy working height. A locking arrangement permits elevation of the rack at intermediate heights. Force applying structures are also selectively mountable to the work rack at various areas about its periphery and are braced for pulls to repair damaged vehicles.

Abstract: A connector for mounting a vehicle measuring system to a vehicle fixture hole includes spaced arms with projecting end lugs which evenly and symmetrically open and grip the material defining the hole so that the connector is centered with respect to the hole. Rotation of a thumb wheel operates a wedge arrangement to evenly spread the arms and securely tighten the connector to the material defining the hole. A bushing on the connector is connectible to the vechicle measuring system and is longitudinally adjustable to set a precise distance from the measuring system to the fixture hole.

Abstract: An anchor stand supports a vehicle above a floor surface and connects to an anchor pot device installed in a floor. The anchor stand includes an anchor bolt and nut to longitudinally draw the bolt and securely attach the stand to the anchor pot. An adjustable clamp is mounted on an uppermost portion of the stand for selectively attaching the anchor stand to a vehicle frame. Various frame straightening tools are then used to correct damage or misalignment of body and frame members.

Abstract: A wheel lift device for raising and supporting a wheeled vehicle such as an automobile, by engagement with a vehicle wheel thereof includes a lower support frame, casters, a carriage for engagement with the vehicle wheel, support struts connecting the carriage to the support frame and maintaining the carriage substantially parallel to a floor, and a mechanism for raising and lowering the carriage with respect to the support frame. The support frame and carriage engage the wheel by approaching the wheel along its path of roll, i.e. from a front or rear end of the vehicle. During this engagement, portions of the wheel lift device extend parallel to and on opposite sides of the wheel to lift the wheel and vehicle from a position where the vehicle is standing on a floor. A vehicle supported by the subject wheel lift devices in engagement with each wheel is readily adjusted for wheel alignment.

Abstract: A pneumatic-hydraulic pumping device including a jacket member, a cap member mounted at one end of the jacket member and an hydraulic head member mounted at the opposite end of the jacket member. An air head member is mounted in the jacket member intermediate the cap and hydraulic head members to form an air piston chamber between the cap member and the air head member and an hydraulic fluid reservoir space in the jacket between the hydraulic head member and the air head member. An air piston means including a piston head and a piston rod fastened thereto is mounted for reciprocal movement in power stroke and exhaust directions inside the air piston chamber with the piston rod being slidably mounted in the air head member. An air piston return means is mounted in the jacket for moving the piston means in the exhaust stroke direction. The air head member is connected to a source of air pressure by a conduit means.

Abstract: A high capacity portable jack which has a chassis consisting of front and rear axles supported on small wheels with parallel laterally spaced tension members connected to and extending between the axles. A jack having a lift arm connected directly to the rear axle and a hydraulic unit pivoted at the rear generally centrally of the lift arm and directly connected at the forward end to the front axle to subject the tension members only to a force tending to stretch the tension members to thereby require only lightweight tension members when the hydraulic unit is operated to raise the jack and lift an object with the saddle at the forward end of the jack.

Abstract: A pneumatic-hydraulic pumping device including a jacket member, a cap member mounted at one end of the jacket member and an hydraulic head member mounted at the opposite end of the jacket member. An air head member is mounted in the jacket member intermediate the cap and hydraulic head members to form an air piston chamber between the cap member and the air head member and an hydraulic fluid reservoir space in the jacket between the hydraulic head member and the air head member. An air piston means including a piston head and a piston rod fastened thereto is mounted for reciprocal movement in power stroke and exhaust directions inside the air piston chamber with the piston rod being slidably mounted in the air head member. An air piston return means is mounted in the jacket for moving the piston means in the exhaust stroke direction. The air head member is connected to a source of air pressure by a conduit means.