Adaptation of tmx for axle motion iii truck application

An apparatus engageable with a railway vehicle truck-mounted braking system for compensating for truck bolster movement which includes at least one force transmitting wedge member movable in a reciprocating motion by a pneumatic actuator. The at least one force transmitting wedge member engage rolle...

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Bibliographische Detailangaben
1. Verfasser:	HOWARD SOMMERFELD
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OR DISPOSITIONS OF BRAKES OR OTHER RETARDINGAPPARATUS IN RAIL VEHICLES BLASTING BRAKES BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAILVEHICLES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS RAILWAYS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An apparatus engageable with a railway vehicle truck-mounted braking system for compensating for truck bolster movement which includes at least one force transmitting wedge member movable in a reciprocating motion by a pneumatic actuator. The at least one force transmitting wedge member engage rollers rotateably attached to a return push rod member disposed within the truck-mounted braking system for extending the return push rod member to reduce brake shoe clearance prior to brake shoe application. A method for compensating for truck bolster movement also includes fully pressurizing a wedge actuator prior to pressurizing the main brake apparatus actuator. Depressurization of the system returns the force transmitting wedges and return push rod to their original positions upon completion of brake application, subsequently increasing brake shoe clearance for allowable truck bolster movement.