Abstract: An auger boring machine includes a track having an initial end and a terminal end, and the track is provided with a rack. The boring machine also includes a sled that is mounted on the track and adapted to be moved between the initial end and the terminal end of the track. The boring machine also includes a mechanism for rotating an auger on the sled and a drive system. The drive system includes a pinion which is mounted so as to engage with the rack on the track and a mechanism for rotating the pinion so as to drive the sled along the track.

Abstract: An equipment lockout control system and method which provides a lockout function that inhibits one or more functions of the equipment being operated under predetermined operating conditions. The system includes at least one receiver, including an equipment inhibitor for disabling at least one function performed by the equipment. At least one portable transmitter operable by an operator is associated with the equipment and includes circuitry for generating a substantially continuous radio signal receivable by the receiver. The control system includes a means for rendering the equipment inhibitor ineffective, so long as the radio signal continues to be received by the receiver. The portable transmitter includes a means for broadcasting a stop signal upon actuation of an operator actuatable stop member forming part of the transmitter.

Abstract: An equipment lockout control system and method which provides a lockout function that inhibits one or more functions of the equipment being operated under predetermined operating conditions. The system includes at least one receiver, including an equipment inhibitor for disabling at least one function performed by the equipment. At least one portable transmitter operable by an operator is associated with the equipment and includes circuitry for generating a substantially continuous radio signal receivable by the receiver. The control system includes a means for rendering the equipment inhibitor ineffective, so long as the radio signal continues to be received by the receiver. The portable transmitter includes a means for broadcasting a stop signal upon actuation of an operator actuatable stop member forming part of the transmitter.

Abstract: An equipment lockout control system and method which provides a lockout function that inhibits one or more functions of the equipment being operated under predetermined operating conditions. The system includes at least one receiver, including an equipment inhibitor for disabling at least one function performed by the equipment. At least one portable transmitter operable by an operator is associated with the equipment and includes circuitry for generating a continuous radio signal receivable by the receiver. The control system includes a means for rendering the equipment inhibitor ineffective, so long as the radio signal continues to be received by the receiver. The portable transmitter includes a means for broadcasting a stop signal upon actuation of an operator actuatable stop member forming part of the transmitter.

Abstract: A method and apparatus for forming a railroad grade crossing comprising a vehicular supporting structure formed by a plurality of precast slabs fixedly located between and on opposite sides of a pair of running rails. A variety of slabs are provided for accommodation of multiple, switch and curved sections of track, with each slab being adjustably positioned relative to the elevation of the rails by temporary shims located proximate each of the marginal corners thereof and carried on the longitudinally spaced railroad ties. A supporting bracket is provided for fixedly connecting the slabs to the running rail. The structure is subsequently supported on a plurality of initially deformable pads located on the railroad ties and which are compressed and preformed to accommodate all inconsistencies and irregularities of the ties. In installations involving signal control sections of track, the supporting bracket is insulated from the running rails whereby to preclude any interference therewith.