The invention consists of a conveyor system with a drive shaft that can be rotated around its longitudinal axis, and at least one conveyor car with at least one frictional wheel, which for propulsion does roll off on the drive shaft with an/the axis of rotation inclined against the longitudinal axis of the drive shaft, where the conveyor system additionally contains first guiding devices with a first distance from the drive shaft that remains constant in longitudinal direction of the drive shaft...

An improved moving work pallet construction includes a cantilever pallet supported on a single track by a wheel or roller. A drive shaft parallel to the track serves to counterbalance the weight of the pallet and also cooperates with a drive wheel on the pallet construction that is selectively positionable between a rest and a drive position due to coaction with a stop member projecting from the next adjacent pallet or mounted at each work station. In this manner, the cantilevered pallet constru...

A driverless vehicle having swivel-mounted support wheels which ride on track rails and at least first and second drive wheels adapted for frictional contact with a drive tube. The drive wheels are interconnected by a linkage permitting limited independent movement of the drive wheels through a track curve, and they are maintained in substantially synchronous angular orientations relative to the drive tube by means of a stationary cam and a follower mounted on one of the drive wheels or by means...

A device for an overhead conveyor system of the type where a plurality of carriages (7) by contracting a rotating drive shaft (5) are propellable along a rail (2). The device comprises an operating arm (28) arranged in connection with a first carriage (7b) and adapted to actuate, by turning about an axis of rotation (26), a power transmission element (24) to disconnect the carriage from contact with the drive shaft, and an angled supporting surface (20) arranged in connection with a second carri...

A slow rotating mole apparatus for use in hydrablasting wellbores and pipelines. The apparatus generally consists of a motor section with a rotor rotatable in response to fluid flow through the motor section, a speed reducer section connected to the motor section such that an output speed of the speed reducer section is less than an output speed of the rotor, and a jetting section attached to the speed reducer section and rotated thereby at the speed reducer output speed. The speed reducer secti...

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 railway car side panel assembly with upright support posts forming the side walls of the car wherein painted or galvanized panels are protected from rusting by plastic inserts positioned between the corners of the panels and metal brackets on the posts to prevent vibration-abrasion of the galvanizing or paint and of the corners to rust, the plastic inserts being of flexible plastic material and formed as envelopes pocketing the corners and fitting into the complementary brackets, the envelopes...

Transport carts without internal drive which are bound to rails are moved in a returning system on a transport line from a common main drive. In the end area of the transport line, a secondary drive system is provided so that the transport carts are transferrable along a vertical curve into an inverted position onto a return line which is disposed parallel beneath the transport line and is provided with a second main drive system.

Straight sections of track each having a drive tube are coupled together by a curved track section. Between the tracks at the curved section, there is provided a series of drive shafts whose ends are not aligned with the ends of the drive shafts in the straight track sections. Driverless trucks are provided with at least two drive wheels for frictional contact with drive shafts in the straight track sections and a discrete drive wheel for cooperation with the drive shafts in the curved track sec...

A driverless vehicle for riding on a track has a drive wheel driven by a drive tube. The drive wheel is coupled to a substrate which in turn is coupled to the deck so that a portion of the load is transmitted to the drive wheel and the remainder of the load is transmitted through a separate substrate to the support wheels.