摘要:
This power circuit-breaker has at least one cylindrically constructed arcing chamber which is provided with a stationary contact, with a moving contact and with a quenching zone between the two contacts. A shaft of the moving contact is permanently connected to a blowout volume which is closed off on the stationary contact side by an insulating nozzle through which at least one flow channel passes. The arcing chamber has a first compression volume which is operatively connected to the blowout volume and to a second compression volume. It is intended to provide a power circuit-breaker in which the blowing-out of the arc with pure SF.sub.6 gas is made stronger. This is achieved by providing a moving auxiliary piston between the first compression volume and the second compression volume and by the auxiliary piston being connected to the moving contact via a direction-changing device.
摘要:
A metal-enclosed, gas-insulated switching installation includes at least two busbar systems and a circuit breaker. Each circuit breaker is in the form of a pole having a pole axis and at least one extinction chamber, installed in a pole housing. The pole axes are arranged perpendicularly to a foundation and are located in a first plane. The switching installation includes an electrically conductive connection, extending along a connecting axis, of the voltage-carrying extinction chamber of the circuit breaker to each of the busbar systems and an isolator arranged in the connection between the busbar and the circuit breaker pole.
摘要:
The invention relates to a caster, in particular free-running caster, having twinned wheels (26, 26′), having a housing (10) with a substantially vertically aligned, upper-side journal opening (12) for holding a rotary journal (14) for connecting the caster to an item of furniture or to some other object, and having an axle bolt (22) which extends through the housing transversely with respect to the journal opening and supports the wheels. In order to permit cost-effective production with sufficient load capacity in the region of the axle receptacle, it is proposed according to the invention that an axle carrier (18) having a passage opening (24) for the axle bolt (22) is arranged in the housing (10), with the axle carrier (18) being composed of a material with a higher strength than the housing (10).
摘要:
Two identical header tube members are fitted to opposite ends of an absorbing member with a plurality of internal channels for circulation of a heat transport fluid to form a collector element. Each header has a header tube which is spaced from a header base plate by a tube saddle. The perimeter of the element includes a flange for joining it together with other, identical elements. Any number of such elements may be joined together to form a continuous, watertight sheet. Where the header tubes of adjoining elements connect, their spacing from the base plate leaves a passageway under them between adjacent tube saddles. Water can run off the surface through the passageway in the direction of slope of the surface upon which the sheet of elements is installed.
摘要:
The invention relates to a twin-wheel caster provided with a housing containing a journal opening on a top side thereof, which is oriented in a substantially vertical direction for receiving a pivot connecting a roller to a furniture or another object, a shaft-shaped slide opening on the lower side thereof, which is laterally offset with respect to the journal opening and used for receiving a cross head supported by the housing with the aid of a spring, wherein the cross head has a through opening which is oriented in a substantially perpendicular direction with respect to the shaft-shaped slide opening and receives a swivel pin bearing two wheels, is placed in the housing in such a way that it is slidable between rolling and braking positions and recesses embodied in the slide opening limiting walls and used for passing the swivel pin. The housing has two projections which are arranged in the internal space thereof, adjacent to the slide opening, laterally extend from the housing wall and frictionally support two hubs of the wheels in the braking position.
摘要:
The invention relates to a twin-wheel caster (26, 26′) is provided with a housing (10) comprising a journal opening (12) on a top side thereof, which is oriented in substantially vertical direction for receiving a pivot (14) connecting a roller to a furniture or another object, a shaft-shaped slide opening (16) on the lower side thereof, which is laterally offset with respect to the journal opening (12) and used for receiving a cross head (18) supported by the housing (10) with the aid of a spring (20), wherein said cross head (18) comprises a through opening (24) which is oriented in a substantially perpendicular direction with respect to the shaft-shaped slide opening (16) and receives a swivel pin (22) bearing two wheels (26, 26′), is placed in the housing (10) in such a way that it is slidable between rolling and braking positions and recesses (32) embodied in the slide opening limiting walls and used for passing the swivel pin (22). The aim of said invention is to ensure a reliable braking by simple means and to prevent the penetration of impurities in the housing internal space. For this purpose, the housing (10) comprises two projections (38, 38′) which are arranged in the internal space thereof, are adjacent to the slide opening (16), are laterally extended from the housing wall and which frictionally support two hubs (28, 28′) of the wheels (26, 26′) in the braking position.
摘要:
A caster, in particular a free-running caster is provided. The caster includes twinned wheels and a housing with a substantially vertically aligned upper-side journal opening for holding a rotary journal which connects the caster to an item of furniture or to some other object. The caster also has an axle bolt which extends through the housing transversely with respect to the journal opening and supports the wheels. In order to permit cost-effective production with sufficient load capacity in the region of the axle receptacle, an axle carrier having a passage opening for the axle bolt is arranged in the housing. The axle carrier is composed of a material with a higher strength than the housing.
摘要:
A computer-implemented method of storing an object received from a client device on one or more content servers remote from the client device includes receiving, through a service oriented (SOA) layer, object metadata about the object from a non-proprietary interface running on the client device and generating a uniform resource locator (URL) with which to retrieve the object. The URL and metadata for locating and retrieving the object from a web application server are transmitted to the client device through the non-proprietary interface, and the metadata for locating and retrieving the object is transmitted through the service oriented architecture (SOA) layer to the client device. The object is received from the client device, and the object is not transmitted through the SOA layer. Finally, the object is stored on at least one of the remote content servers.
摘要:
A metal-encapsulated, gas-insulated switching installation is provided with at least one busbar system, the busbar system having an axis separation, and a circuit breaker, the circuit breaker being in the form of a pole and having a pole axis, the circuit breaker including at least one quenching chamber installed in a pole enclosure and at least one connection for the associated busbar system. The pole axis is arranged at a right angle to a surface of a foundation. The circuit breaker of the switching installation includes a modular circuit breaker pole. The modular circuit breaker pole includes an enclosure lower part having a first end and a second end, and at least one opening for connecting an isolator for a busbar system between the first end and the second end of the enclosure lower part, an enclosure upper part having a first end and a second end, at least one of the first end and the second end of the enclosure upper part being attachable to each of the first end and the second end of the enclosure lower part, and an enclosure cover attachable to at least one of the second end and the first end of the enclosure upper part. The enclosure lower part, the enclosure upper part, and the enclosure cover define at least part of a circuit breaker pole enclosure having a pole axis.
摘要:
A computer-implemented method of storing an object received from a client device on one or more content servers remote from the client device includes receiving, through a service oriented (SOA) layer, object metadata about the object from a non-proprietary interface running on the client device and generating a uniform resource locator (URL) with which to retrieve the object. The URL and metadata for locating and retrieving the object from a web application server are transmitted to the client device through the non-proprietary interface, and the metadata for locating and retrieving the object is transmitted through the service oriented architecture (SOA) layer to the client device. The object is received from the client device, and the object is not transmitted through the SOA layer. Finally, the object is stored on at least one of the remote content servers.