There are disclosed methods for withdrawal of a bearing from a gate mechanism including a mechanism housing, a carrier assembly, and discrete fasteners. The carrier assembly includes a carrier housing and a carrier bearing. The carrier bearing is supported for rotation within the carrier housing. The carrier housing has a carrier support mating with a receiving bore of the mechanism housing. The carrier housing has multiple flange fasteners aligning with housing fasteners and housing surfaces of the mechanism housing when the carrier housing mates with the receiving bore. Multiple discrete fasteners are removed from a first group of the flange fasteners aligned with the housing fasteners. The carrier assembly is displaced from the mechanism housing in response to inserting the plurality of discrete fasteners to a second group of the plurality of flange fasteners aligned with the plurality of housing surfaces.

There are disclosed methods for withdrawal of a bearing from a gate mechanism including a mechanism housing, a carrier assembly, and discrete fasteners. The carrier assembly includes a carrier housing and a carrier bearing. The carrier bearing is supported for rotation within the carrier housing. The carrier housing has a carrier support mating with a receiving bore of the mechanism housing. The carrier housing has multiple flange fasteners aligning with housing fasteners and housing surfaces of the mechanism housing when the carrier housing mates with the receiving bore. Multiple discrete fasteners are removed from a first group of the flange fasteners aligned with the housing fasteners. The carrier assembly is displaced from the mechanism housing in response to inserting the plurality of discrete fasteners to a second group of the plurality of flange fasteners aligned with the plurality of housing surfaces.

A crossing gate mechanism (300) includes a linkage (320) operably coupled to a crossing gate arm (310), wherein the crossing gate arm (310) is movable between a vertical position (VP) and a horizontal position (HP) via the linkage (320), wherein the linkage (320) is in a first position when the crossing gate arm (310) is in the vertical position (VP) and in a second position when the crossing gate arm (310) is in the horizontal position (HP), and wherein the linkage (320) in the second position mechanically locks the crossing gate arm (310) in the horizontal position (HP).

A crossing gate mechanism (300) includes a linkage (320) operably coupled to a crossing gate arm (310), wherein the crossing gate arm (310) is movable between a vertical position (VP) and a horizontal position (HP) via the linkage (320), wherein the linkage (320) is in a first position when the crossing gate arm (310) is in the vertical position (VP) and in a second position when the crossing gate arm (310) is in the horizontal position (HP), and wherein the linkage (320) in the second position mechanically locks the crossing gate arm (310) in the horizontal position (HP).

There is described an adaptor assembly of a gate mechanism for aligning a gear motor with a shaft driving gear. The assembly comprises a gate mechanism housing, a shaft driving motor, an adaptor, and fasteners. The housing includes a bore having an inner dimension and a housing fastener connection. The shaft driving motor has a motor shaft and a motor fastener connection. The adaptor comprises a housing fastener passage, a motor fastener passage, and a central protrusion. The central protrusion has an outer dimension aligned with the inner dimension of the bore and a central shaft passage accommodating the motor shaft of the shaft driving motor. A first fastener secures the adaptor to the shaft driving motor via the motor fastener passage and the motor fastener connection. A second fastener secures the adaptor to the housing via the housing fastener passage and the housing fastener connection.

There is described an adaptor assembly of a gate mechanism for aligning a gear motor with a shaft driving gear. The assembly comprises a gate mechanism housing, a shaft driving motor, an adaptor, and fasteners. The housing includes a bore having an inner dimension and a housing fastener connection. The shaft driving motor has a motor shaft and a motor fastener connection. The adaptor comprises a housing fastener passage, a motor fastener passage, and a central protrusion. The central protrusion has an outer dimension aligned with the inner dimension of the bore and a central shaft passage accommodating the motor shaft of the shaft driving motor. A first fastener secures the adaptor to the shaft driving motor via the motor fastener passage and the motor fastener connection. A second fastener secures the adaptor to the housing via the housing fastener passage and the housing fastener connection.

A crossing gate mechanism includes an enclosure housing multiple components including a control unit configured to operate the crossing gate mechanism and associated crossing gate arm, an electric motor driving a main shaft, the main shaft extending outside the enclosure and the crossing gate arm being coupled to the main shaft, one or more electronic sensor(s) capable of providing angular information, and a processing unit configured to determine positions based on the angular information.

A crossing gate mechanism includes an enclosure housing multiple components including a control unit configured to operate the crossing gate mechanism and associated crossing gate arm, an electric motor driving a main shaft, the main shaft extending outside the enclosure and the crossing gate arm being coupled to the main shaft, one or more electronic sensor(s) capable of providing angular information, and a processing unit configured to determine positions based on the angular information.

A dynamic load system includes a first electric machine simulating a load, a second electric machine, a coupling device for mechanically coupling the first electric machine to the second electric machine, a control unit with a processor and connected to the first electric machine and the second electric machine, wherein the control unit is configured to control the first electric machine and the second electric machine, wherein a reference value of the second electric machine is utilized to achieve a specific performance of the first electric machine.

A dynamic load system includes a first electric machine simulating a load, a second electric machine, a coupling device for mechanically coupling the first electric machine to the second electric machine, a control unit with a processor and connected to the first electric machine and the second electric machine, wherein the control unit is configured to control the first electric machine and the second electric machine, wherein a reference value of the second electric machine is utilized to achieve a specific performance of the first electric machine.