A fluid brake system has a brake pipe (10), a control valve device (11), a brake cylinder (12) and a brake rigging (13), and in addition, a handbrake pipe (14), a protective device (15), a fluid pressure releaseable spring handbrake cylinder (16), and a manually operable handbrake device (17) for selectively governing brakes of the brake rigging under varying conditions, as when air supply is disconnected from a train. A moveable fulcrum in the manual handbrake device permits manual release of spring applied handbrakes in combination with a resetable toggle rocking connection to a handbrake rod (39).

Der Rahmen (2) des Fahrwerkes weist jeweils ein Rad (1) gabelförmig umgreifende und mit Lagern (2b) für das Rad (1) versehene Arme (2a) auf. Diese Arme sind jeweils zur Aufnahme einer Radscheibenbremse ausgebildet, die im wesentlichen aus einem Bremszylinder (3), einer Bremszange (4) und Bremsbacken (5) besteht. Die Radscheibenbremse (3, 4 und 5) ist oberhalb der Mittenebene des Rades (1) auf den Armen (2a) und dem an diese angrenzenden Bereich des Fahrwerkrahmens (2) angeordnet. Alle in Längsrichtung auftretenden Bremsreaktionskräfte werden über Anschlagstücke (2c),die jeweils nach oben ragend an den Armen (2a) befestigt sind und formschlüssig mit den Bremsbacken (5) zusammenwirken, direkt in den Fahrwerkrahmen (2) eingeleitet.

A fluid brake system has a brake pipe (10), a control valve device (11), a brake cylinder (12) and a brake rigging (13), and in addition, a handbrake pipe (14), a protective device (15), a fluid pressure releaseable spring handbrake cylinder (16), and a manually operable handbrake device (17) for selectively governing brakes of the brake rigging under varying conditions, as when air supply is disconnected from a train. A moveable fulcrum in the manual handbrake device permits manual release of spring applied handbrakes in combination with a resetable toggle rocking connection to a handbrake rod (39).

A device for connection to an input device actuated by a user comprises: a driving member for connection to the input device; a follower member; wherein motion of the driving member is only transmitted to the follower member after the driving member has been moved by a certain amount; and wherein means are provided to transmit a force back to the user as the driving member is moved in one direction.

In combination with a hand brake system for a railway vehicle including first and second spaced-apart brake beams. First and second transfer levers are pivotally connected at a point intermediate the ends thereof to a respective one of the first and second brake beams. First and second force-transmitting members are interconnected between corresponding arms of the first and second transfer levers. Such first force-transmitting member including a brake actuator device operable in response to the supply of fluid pressure thereto for increasing the length of the first force-transmitting member, to accordingly increase the spaced-apart distance between the first and second brake beams. A transfer link is connected to the first transfer lever so as to be arcuately movable therewith in a plane parallel to the plane of rotation of the first transfer lever. The improvement comprises a thrust block (110) disposed on the first brake beam. The thrust block (110) having a pin member (104) disposed therein. There is an actuating lever (100) having a pivotal connection at a location intermediate the ends thereof with the transfer link closely adjacent one end of the actuating lever (100) there is an arcuate portion (106') rotateably engageable with the pin member (104) and being adapted to receive a hand brake force.

An apparatus (10) to enable the automatic release of a railway vehicle hand brake system from either side of the vehicle is provided. The apparatus comprises a source of fluid pressure (14) engageable with the vehicle. A release cylinder (16), which is operable by fluid pressure, is connected to a hand brake mechanism (12) that is engageable with a brake system disposed on the vehicle. A valve means (18) is connected intermediate the source of fluid pressure and the release cylinder. This valve means causes the release cylinder to release the hand brake system. A first valve actuation means (20) is disposed on a first side of the vehicle and is connected intermediate the valve means (18) and the source of fluid pressure (14). This first valve actuation means (20) causes the valve means to initiate communication of fluid pressure from the source of fluid pressure to the release cylinder (16). A second valve actuation means (22) is disposed on an opposed second side of the vehicle and is connected intermediate the valve means (18) and the source of fluid pressure (14). This second valve actuation means (22) also causes the valve means to initiate communication of fluid pressure from the source of fluid pressure to the release cylinder (16).

A hand brake front housing for a railroad car hand brake mechanism. Such hand brake front housing comprising a front casing for enclosing pre-selected portions of a hand brake mechanism. The front casing having a front wall of a predetermined size and shape. A bearing mount integrally formed to the front wall of such front casing. The bearing mount having a predetermined size and shape to retain a predetermined arrangement of a bearing unit.

A spring applied parking brake assembly for a railroad vehicle braking system is provided for an automatic application of the parking brake in the absence of an air source. The spring applied parking brake assembly comprises a cylindrical casing containing a piston assembly. The piston assembly is mounted for longitudinal movement within the casing upon the application and/or removal of pneumatic pressure to the piston assembly. The piston assembly is associated with a force transfer lever of the braking system so as to apply a force to this force transfer lever upon longitudinal movement of the piston assembly. At least one spring member is provided within the cylindrical casing. This spring member applies a constant force to the piston assembly such that longitudinal movement of the piston assembly automatically occurs upon removal of pneumatic pressure to the braking system, causing the piston assembly to retract within the casing and the force transfer lever to rotate in a direction to initiate a brake application. Thus, once the train is removed from the train consist and the air supply for the pneumatic braking system has been disconnected, the brakes of the train are automatically applied. A manual quick release system is also provided which allows the parking brake to be released during shunting operations or anytime that it is desirable to move the vehicle in the absence of air.

Bei einer Bremseinrichtung für Schienenlaufkräne,bei denen sich in einem Rahmenlaufgestell ein auf- und abbewegbarer Bremsschuh (1) befindet, weist der Bremsschuh (1) einen quadratischen oder rechteckigen Grundriß (2), parallel zueinander verlaufende Längsseitenflächen (3) und parallel zueinander verlaufende Vorder- und Rückflächen (4,5) auf. Ferner ist der Bremsschuh (1) mit einer in Längsrichtung verlaufenden, nach unten hin offenen tunnelartigen Ausnehmung (8) versehen, die von der Vorderfläche (4) des Bremsschuhs (1) bis zu dessen Rückfläche (5) reicht, wobei sich die gegenüberliegenden Schenkel (9a,9b) des U-förmigen Querschnitts der tunnelartigen Ausnehmung (8) von ihrem unteren Ende ausgehend schräg verlaufend annähern.