An operating table for large animals such as horses and the like. The table has a surface for supporting the animal, which table is mounted on a generally horizontal shaft extending therethrough and about which the table is rotatable. This shaft is connected to a bridge which is mounted on a second horizontal shaft generally perpendicular to the first shaft, the bridge being turnable about said second shaft. The bridge is then mounted on a vertically elevatable pole and means are provided for mo...

A driverless tugger vehicle is adapted to shuttle back and forth and push or pull another driverless vehicle each time it moves in a forward direction. The tugger vehicle is propelled by frictional contact between a drive wheel and a drive shaft with the drive wheel being mounted for pivotable movement through an arc of approximately 90 degrees so that the vehicle may reciprocate in opposite directions without changing the direction of rotation of the drive shaft.

A driverless tugger vehicle adapted to contact another driverless vehicle and push or pull the latter to a source of power includes a body having support wheels for riding on tracks. The body has a drive wheel adapted for frictional contact with a drive shaft. A contact member on the body is provided for pushing or pulling the other driverless vehicle. A switch actuator is provided on the body for initiating reversal of direction of movement of the body when the contact member is coupled to said...

A plurality of driverless vehicles are pivotably connected together to form a train. Each vehicle has a drive wheel connected to the drive wheel on the next adjacent vehicle by a flexible member extending therebetween so that the drive wheel on the second vehicle is a slave to the drive wheel on the first vehicle.

A vehicle precision location assembly including a precision shoe mounted on the vehicle and having planar surfaces which converge towards an end of the shoe and intersect along an edge inclined with respect to the horizontal and a pair of rollers mounted alongside a track and having their axes of rotation canted with respect to each other such that each roller contacts the shoe surfaces along a line substantially parallel to the axis of the roller whereby the vehicle will be centered in a direct...

A driverless vehicle, propelled by a longitudinal drive shaft, is provided with a load supporting substrate coupled to the vehicle body by a floating mount which permits the substrate to be moved relative to the body in a limited manner. A precision locator for use with said vehicle orientates the substrate in three directions, namely fore-aft, transversely, and vertically.