Abstract: A repositionable shelf-mounted handle spool assembly for cable routing includes a mounting bracket and a repositionable spool coupled thereto. The mounting bracket has a primary mounting plate and a shelf, having an opening, that is parallel to but spaced apart from the primary mounting plate. The repositionable spool includes a base having a stub for repositionably coupling with the opening in the shelf, a cylindrical shaft extending from the base, and a gate arm mounted perpendicularly to the cylindrical shaft. The base may be repositioned relative to the mounting structure via the stub.

Abstract: A repositionable shelf-mounted handle spool assembly for cable routing includes a mounting bracket and a repositionable spool coupled thereto. The mounting bracket has a primary mounting plate and a shelf, having an opening, that is parallel to but spaced apart from the primary mounting plate. The repositionable spool includes a base having a stub for repositionably coupling with the opening in the shelf, a cylindrical shaft extending from the base, and a gate arm mounted perpendicularly to the cylindrical shaft. The base may be repositioned relative to the mounting structure via the stub.

Abstract: A composition and method for producing a low density, high stiffness aluminum alloy which is capable of being processed into structural components having a desired combination of tensile strength, fracture toughness and ductility. The method includes the steps of forming, by spray deposition, a solid Al-Li alloy workpiece consisting essentially of the formula Al.sub.bal Li.sub.a Zr.sub.b wherein "a" ranges from greater than about 2.5 to 7 wt %, and "b" ranges from greater than about 0.13 to 0.6 wt %, the balance being aluminum, said alloy having been solidified at a cooling rate of about 10.sup.2 to 10.sup.4 K/sec. The method further includes several variations of selected thermomechanical process steps for: (1) eliminating any residual porosity which may be present in the workpiece as a result of the spray deposition step; and (2) producing components for a wide range of applications.

Abstract: An interface between a host computer and a crossbar switch is provided which employs data buffering using multiple-port RAM devices. The receive and transmit data is clocked into or out of separate serial ports of the RAM, and at the same time a local processor can access the RAM by a random access port, asynchronous to the serial ports, to execute the protocol. The order of storing bursts of data in the multiple-port RAM is defined by a free buffer manager which keeps account of which locations are free. The addresses of these locations are moved to a received list after being used for incoming packets. After the protocol processor has finished with its tasks, these addresses, referred to as burst data descriptors, are moved to a transmit list to await loading of burst data back to the serial registers for clocking out, then when transmitted the descriptors are again entered into the free buffer manager.

Abstract: In order to process video images under control of a data processing system, a video signal processing device is described that can be coupled to a data processing system interface unit. The video signal processing device includes two image frame buffers and apparatus for transferring signals in a controllable manner between the two image frame buffers. The video signal processing device also includes apparatus for combining the output signals of the image frame buffers in a controllable manner. The control of the signal transfer between image frame buffers and the control for the combining of the output signals of the image frame buffers is provided by the data processing system. The data processing system loads a multiplicity of registers with information to provide the desired output signal and the video signal processing unit executes the functions determined by the register contents. In this manner, the data processing system can devote relatively few of the available resources to processing the image.

Abstract: A tent-like portable blasting room enclosure is provided with a central entry opening in the roof. Air is circulated through the blasting room enclosure and exits through spaced parallel air return ducts extending along the lower edges of the opposite side walls of the blast room enclosure through a closed loop abrasive conveying air stream. Inlet air diffusers are provided in the upper portion of the blasting room enclosure for uniformly distributing the air introduced into the blast room in a downward direction without creating turbulence in the blast room. The parallel air return ducts extend outwardly beyond the blasting room enclosure and define a second floor area adjacent the first floor area beneath the blasting room enclosure.

Abstract: Aluminum base alloys characterized by low density, high elastic modulus and high strength and having a composition consisting esentially of aluminum--about 0.5 to about 4.3 weight percent lithium--about 0.02 to about 20 weight percent beryllium.