An elongate frame, preferably comprising a pair of structural channels secured together in mutually spaced, back-to-back, parallel relationship, has a trackway along a longitudinal face mounting a carriage for reciprocation. An elongate, hydraulic power cylinder unit is secured to and extends along one end portion of the frame and carries at its work stroke extension end tandem idler sheaves about which are looped respective ropes that extend to and from respective idler sheaves at opposite ends...

A method, system and computer program product for sharing an Integrated Device Electronics (IDE) drive among server blades in a dense server environment. By logically partitioning the IDE drive, where each logical partition is associated with a particular server blade, the IDE disk may be shared among multiple server blades in the dense server environment.

A mast mounted percussion rock drill having a force transmitting frame which provides for a feed force to be exerted on the drill and drill string in a direction which is coaxial with the longitudinal axis of the drill string. The force transmitting frame is adapted to be slidably retained in a mast structure having spaced inwardly facing channel members. The force transmitting frame is attached to a single feed chain centrally located on the drill mast and includes a hydraulic force sensor for ...

A drilling machine is mounted on a slide which is movable along a feed beam. The drilling machine is connected to the slide by means of a hinge which is situated farther from the feed beam than the drill axis defined by the drilling machine. Furthermore an elastic element has been provided between the drilling machine and the slide, the stiffness of the elastic element being such that the direction of the drill axis is independent of the applied feed force.

A traverse head for a rotary drill rig includes a motor and gearcase supported by and drivably connected to a rotatable shaft disposed on a frame. The shaft includes a pair of spaced apart pinions drivably engaged with a pair of parallel gear racks mounted on an elongated mast whereby the traverse head may be driven along the mast to perform pulldown and hoisting movements on a drill stem. The traverse head includes a motor and gear housing mounted on the frame and connected to the drill stem. T...

A body construction for a drilling machine comprising a body provided with end covers, a percussion means mounted in the body, and a rotation means positioned on an axial extension of the percussion means for rotating a shank. In order to avoid the use of conventional tie rods, the body is formed by an integral body part, and housings for the percussion and the rotation means are formed in the body part in such a way that the percussion and the rotation means can be replaced through the correspo...

A nail driver apparatus and a nail directed to joining abutting wood members with headless opposing points nails has a driver and opposing points nail for driving a blind or concealed nail. The driver apparatus includes a preferred means for driving and guiding a headless opposing points fastener by means of a percussive driving force, such as a hammer blow to a shaft member, and for protecting a point of the nail or fastener inserted into the driver.

A manually portable drilling system for the purpose of drilling earth bore holes. The drilling system will accommodate a lightweight drill pipe for air or mud rotary drilling, auger, or with use of air hammer percussion tools. The drilling system includes a self-contained mast which is detachable from a support base table. The mast contains an internal traveling shuttle to which a power unit is attached. The shuttle is manually driven by a conventional two speed, reversible hand winch modified t...

A computer architecture and programming model for high speed processing over broadband networks are provided. The architecture employs a consistent modular structure, a common computing module and uniform software cells. The common computing module includes a control processor, a plurality of processing units, a plurality of local memories from which the processing units process programs, a direct memory access controller and a shared main memory. A synchronized system and method for the coordin...

A mounting apparatus for a rotational drive unit. The rotational drive unit includes a socket portion which receives a truck or carrier. Opposing engagement surfaces of the carrier are separated by a distance greater than the length of the socket. The resulting lost motion connection allows for a range of free movement of the rotational head on the carrier.