A linkage is disclosed for connecting a self propelled vehicle to horizontally oriented guide rollers rollably supported by and between parallel pipe rails. The linkage includes a tongue plate with one end pivotally carried about a vertical pin secured to the guide roller support plate and the other end slidably and rotatably mounted on a horizontal rod secured to the undercarriage of the vehicle. The slidable tongue end is centered on the rod by a pair of opposing compression springs entwined o...

Pulley lagging comprising center and end members formed for mounting in end-to-end relation on and across the peripheral surface of a pulley parallel to the pulley axis. The members are formed with belt traction material having a constant thickness over the length of the center member and having an equal thickness at the abutting ends of the end members but tapering over the lengthwise dimension of the end members to a lesser thickness at the outer ends thereof.

The volume of a baker's oven is rendered adjustable by the provision of a movable rear wall, preferably having sidewall screens screening the space not used from the heat source. An oven having a plurality of oven compartments, each of which is formed for independent adjustment of the volume thereof, is also disclosed.

A container loader and transport assembly is disclosed which includes a horizontal bed formed for support of a container thereon during transport of the container and loader formed for lifting the container onto the bed from a support surface and lowering the container from the bed to the support surface. The loader is movably mounted to the bed and preferably includes a movable carriage and a lifting mechanism mounted to the carriage. The loader is formed to lift the container and lower it whil...

The invention comprises an ergonomic support system for a person in a seated position comprised of torso support platform, a seat, a shin support platform all supported by a main frame generally the size of a common chair, related attachments for facial and arm supports, further includes a pelvic tilt seat for the system to allow alignment of the body and unimpeded movement of the arms and pelvis and a healthy and comfortable position of the spine. The support platforms are preferably padded and...

An automatic, rail-based passenger and cargo transportation system which is particularly well suited for use as a moderate speed people mover is disclosed. The system includes a rail structure on which passive carrier cars are movably supported from opposite sides of the rail. In one aspect a plurality of drive wheels are rotatably mounted to the rail assembly and span across the width of the rail structure so as to drive the carrier cars along the rail in opposite directions on opposite sides o...

To detect impending deropement of a wire haul rope from supporting sheaves in an aerial tramway system, there is provided a magnetic assembly having sufficient field strength to support itself in a predetermined position by reason of attraction to the wire haul rope when running normally in the sheaves. When the wire haul rope begins to run off one of the sheaves toward an impending deropement, the magnetic assembly will fall from its armed position to a substantially moved position. The magneti...

A metallic substrate which is to be electroplated with a metal other than copper for use in high stress applications, such as band saw blades, is given improved resistance to stress fracture by electroplating with copper from an alkaline solution prior to the noncuprous metal.

An apparatus and method for measuring the concentration of a chemical substance in a test sample based on a technique of waveform distortion analysis is disclosed. The apparatus includes a waveform generator that generates a periodic signal, an antenna probe that transmits the signal into the test sample and receives from the test sample a corresponding periodic signal, the waveform of which has been distorted or otherwise transformed by the chemical, and a detector circuit that quantifies the t...

For a wheelchair, an improved handrim assembly includes a wheelrim with circumferentially spaced-apart slots formed through the wheelrim and anchor tab members loosely mounted through the slots. The anchor tabs have enlarged heads on the outer side of the rim and narrower neck portions which extend radially inward of the wheelrim. Fasteners mounted through apertures in the anchor tab necks extend transversely from the anchor tabs and are rigidly connected to portions to a handrim. Each of the sl...