Abstract: A two-mass heavy duty vibratory machine has a frame in the form of a box-like cage in which a working member, such as a screen, is received. In one embodiment of the disclosure, the frame is resiliently mounted on a stationary support surface and the working member is resiliently suspended from the frame. In another embodiment of the disclosure, the working member is resiliently mounted on the stationary support surface and the frame is suspended from the working member. In both embodiments, an exciter is mounted on the frame at a location outside the frame and spaced from the working member.

Abstract: The system of the present invention provides means for quick and accurate measurement of various wheel alignment parameters of motor vehicles by the use of reflected light beams. A laser source mounted near the front end of the vehicle provides a pair of light beams directed 180 degrees apart across the front end of the vehicle. Each of the beams is reflected along the side of the vehicle by a roof mirror set mounted near each front corner of the vehicle. The mirror sets each deflect a beam through a constant net angle of 90 degrees for a wide range of angles of incident light so that the laser source can be rotated to quickly provide parallel beams which are aligned substantially parallel to the sides of the vehicle. These mirror sets also provide stable beams and present small movements thereof from affecting the accuracy of the measurements being made.

Abstract: There is disclosed a multi-lane destacking machine in which stacks of nested articles in each lane are fed, one at a time, through an opening to drop to a shuttle platform. A clamp mechanism grips a stack on the shuttle platform, and the platform is retracted. A stripper mechanism, which has sharp, pointed edges on stripper arms to penetrate the interstice between the bottom article and the article nested therewith, advances to dislodge the bottom article of the stack onto a surface in front of the retracted shuttle platform. When the shuttle platform is advanced to again support the stack upon release of the clamp mechanism, the previously dislodged article is moved from under the stripper mechanism into a discharge lane by the shuttle platform. When the stripper mechanism is retracted, the stripper arms, which are normally biased toward each other, engage a stationary stop to spread apart.

Abstract: An apparatus and method for measuring the angle between two members is disclosed. A wheel aligner has a projector mounted on each front wheel of the vehicle to project a beam toward the other projector. Each projector has a detector to sense the presence of a beam from the opposite projector. Each projector has a plurality of light sources to project a plurality of beams, one at a time, in a diverging pattern. Circuitry is provided to identify the beam which is detected, at any angle of toe of the wheel, to thereby give the angle of toe.

Abstract: An apparatus and a method of providing runout compensation for wobble present in the measurements made of the orientation of a rotary body relative to at least a pair of planes, and including at least a pair of sensors for providing measurements angularly related to each other and with the sensors coupled to the body for providing signals representative of the measurements of the rotary body relative to at least the pair of planes at a particular angular relationship. The body is rotated through a plurality of positions for providing signals representative of the measurement of the body relative to the pair of planes at the different positions. A first output signal is produced and is representative of the orientation of the body relative to one of the planes in accordance with the measurements at the different positions in the one plane and with the measurements in the one plane used to provide a runout compensation for wobble present in the measurements.