A screwing machine tightens or releases rail fixing screws. The screwing machine contains a machine frame which can be rolled on a track, handles for moving the screwing machine, a motor for applying a torque to a screw head, and a device for transmitting a torque. A measuring device is provided opposite the machine frame in order to detect a reaction torque of the motor. The motor is actuated in order to limit the torque depending on the reaction torque. The reaction torque is used as a reference variable. The reaction torque is applied to the machine frame by the motor and is ascertainable with a high degree of precision by a simple measuring device. In this manner, a simple and robust design and a precise rotational speed limiting function are implemented.

A screwing machine tightens or releases rail fixing screws. The screwing machine contains a machine frame which can be rolled on a track, handles for moving the screwing machine, a motor for applying a torque to a screw head, and a device for transmitting a torque. A measuring device is provided opposite the machine frame in order to detect a reaction torque of the motor. The motor is actuated in order to limit the torque depending on the reaction torque. The reaction torque is used as a reference variable. The reaction torque is applied to the machine frame by the motor and is ascertainable with a high degree of precision by a simple measuring device. In this manner, a simple and robust design and a precise rotational speed limiting function are implemented.

A plating system for attaching a pair of tie plates to a wooden railroad tie with screw spikes such that the tie plates are aligned and in gauge. A predrilling system is used to predrill holes in the appropriate position on the railroad tie according to the line end of the tie prior to loading the tie into the plating system. The plating system clamps the railroad tie in registration according to the line end of the tie, and holds the tie plates in the appropriate position while a pair of hydraulic screw-presses turn screw spikes to fasten the tie plates to the railroad tie in gauge, centered and aligned on the railroad tie.

An installation device for tension clamps for attaching a rail to a railroad tie or another rail substructure, a method for attaching at least two tension clamps in their installation position by such an installation device, and a system made of an installation device with a drive device connected to it are disclosed.

Systems, methods, and non-transitory, machine-readable media for railway fastener removal are disclosed. A railway fastener extractor may be aligned with a railway fastener installed in a railway tie. The railway fastener extractor may be coupled with a frame assembly and a cylinder and slide assembly of a railway workhead so that the railway fastener extractor is suspended from the cylinder and slide assembly. The railway fastener extractor may be operated to extend opposing claws of the railway fastener extractor toward a railway fastener, and may be operated to selectively apply force to a linkage system to grip the railway fastener, the force being directed along a longitudinal axis. The force may be bifurcated and corresponding forces may be applied to move linkages and move the opposing claws to grip the railway fastener, and the railway fastener extractor may be operated to extract the railway fastener.

Systems, methods, and non-transitory, machine-readable media for railway fastener removal are disclosed. A railway fastener extractor may be aligned with a railway fastener installed in a railway tie. The railway fastener extractor may be coupled with a frame assembly and a cylinder and slide assembly of a railway workhead so that the railway fastener extractor is suspended from the cylinder and slide assembly. The railway fastener extractor may be operated to extend opposing claws of the railway fastener extractor toward a railway fastener, and may be operated to selectively apply force to a linkage system to grip the railway fastener, the force being directed along a longitudinal axis. The force may be bifurcated and corresponding forces may be applied to move linkages and move the opposing claws to grip the railway fastener, and the railway fastener extractor may be operated to extract the railway fastener.

A screwing machine tightens or releases rail fixing screws. The screwing machine contains a machine frame which can be rolled on a track, handles for moving the screwing machine, a motor for applying a torque to a screw head, and a device for transmitting a torque. A measuring device is provided opposite the machine frame in order to detect a reaction torque of the motor. The motor is actuated in order to limit the torque depending on the reaction torque. The reaction torque is used as a reference variable. The reaction torque is applied to the machine frame by the motor and is ascertainable with a high degree of precision by a simple measuring device. In this manner, a simple and robust design and a precise rotational speed limiting function are implemented.

A screwing machine tightens or releases rail fixing screws. The screwing machine contains a machine frame which can be rolled on a track, handles for moving the screwing machine, a motor for applying a torque to a screw head, and a device for transmitting a torque. A measuring device is provided opposite the machine frame in order to detect a reaction torque of the motor. The motor is actuated in order to limit the torque depending on the reaction torque. The reaction torque is used as a reference variable. The reaction torque is applied to the machine frame by the motor and is ascertainable with a high degree of precision by a simple measuring device. In this manner, a simple and robust design and a precise rotational speed limiting function are implemented.

Systems, methods, and non-transitory, machine-readable media for railway fastener removal are disclosed. A railway fastener extractor may be aligned with a railway fastener installed in a railway tie. The railway fastener extractor may be coupled with a frame assembly and a cylinder and slide assembly of a railway workhead so that the railway fastener extractor is suspended from the cylinder and slide assembly. The railway fastener extractor may be operated to extend opposing claws of the railway fastener extractor toward a railway fastener, and may be operated to selectively apply force to a linkage system to grip the railway fastener, the force being directed along a longitudinal axis. The force may be bifurcated and corresponding forces may be applied to move linkages and move the opposing claws to grip the railway fastener, and the railway fastener extractor may be operated to extract the railway fastener.

Systems, methods, and non-transitory, machine-readable media for railway fastener removal are disclosed. A railway fastener extractor may be aligned with a railway fastener installed in a railway tie. The railway fastener extractor may be coupled with a frame assembly and a cylinder and slide assembly of a railway workhead so that the railway fastener extractor is suspended from the cylinder and slide assembly. The railway fastener extractor may be operated to extend opposing claws of the railway fastener extractor toward a railway fastener, and may be operated to selectively apply force to a linkage system to grip the railway fastener, the force being directed along a longitudinal axis. The force may be bifurcated and corresponding forces may be applied to move linkages and move the opposing claws to grip the railway fastener, and the railway fastener extractor may be operated to extract the railway fastener.