Portable test apparatus utilized to access a field of test points comprises either a single access tool (100) or a multiple access adaptor (200) depending on the mode of testing required. Tool (100) is usually employed for accessing the field to effect a periodic testing whereas adaptor (200) is generally used for planned test activities. Tool (100) comprises body (111), guide assembly (150) and cover plater (170) which house clamp assembly (130) and pin contact assembly (180). Clamp assembly (1...

Access equipment comprising a wheeled vehicle (10) carrying on its chassis a turntable (11) on which is rotatably mounted a supporting structure (12) on which, in turn, is mounted a pair of articulated booms (14,16) having hydraulic actuating rams (20,21) and carrying a personnel platform (18) at the free end of the boom assembly, there being at each end of each boom a guide pulley or half pulley (22,23,24) around which passes a control or support line (26) anchored to the supporting structure (...

This invention describes a system for access control, wherein a control card is presented to a control means. If the control card is authenticated, then access is gained. If it is not authenticated, access is not gained, the control card is retained, and an alarm may be sounded. The control card contains at least two means; (1) machine readable indicia identifying the card, and (2) a random pattern of micro spots, which pattern is derived (by direct copying-such as by focussed laser beam) from o...

A control valve which can randomly select any one of a plurality of conduits for controlling the flow to a single output port. The valve is comprised of base plate and a cover or bearing plate, which together form a housing having a cavity. A slider or block of the same shape, but slightly smaller than the cavity, is confined in, but may move freely in the cavity to align a port in the base plate with ports in the slider. The slider has a plurality of ports and as the slider is moved from one co...

A data processing system is disclosed in which a high-speed processor is added to a slow-speed processor and in which both processors have access to a first memory unit with the slow processor having access priority over the fast processor. In order to allow the fast processor to operate without losing data when a conflict occurs during a write operation, a second memory is coupled to the fast processor in which is stored all the data stored in the first memory. When the fast processor attempts ...

Equipment for cleaning hulls of ships and like surfaces, including a vehicle carrying an articulated boom structure comprising one or more booms connected to the vehicle and rotatable about a turntable thereon, and elevatable relative thereto, the outermost end of the boom structure carrying a frame or the housing which contains a nozzle or like for cleaning or applying coatings to the surface to be treated, the frame or housing including rollers for running along the that surface in contact the...

Data storage and access apparatus for multi-dimensional data processing. The apparatus includes a storage shift register array (SSRA) to permit data storage and one or more storage/access shift register arrays (S/A SRA) to permit data storage and data access.

A modular communications access apparatus which permits untrained personnel to quickly and properly convert a passive junction box which contains a telecommunications cable to an active junction box with a wall-mounted telecommunications socket, includes a first keyed socket connected to selected conductors of the in-wall telecommunications cable and an associated attachment structure. The attachment structure, designed to be connected by the untrained personnel, includes an active face plate ha...

In a crop harvesting and threshing machine of the type utilizing axial flow threshing and separation, there is provided an access unit to the threshing and separating apparatus which is removably insertable through the side of the harvesting and threshing machine into the rotor casing. The access unit has threshing grates attached to the portion nearest the threshing and separating apparatus so that when inserted the access unit serves to aid in the threshing and separating of the grain from the...

An assembly for mounting access flooring over a permanent surface is comprised of a plurality of supporting pedestals. Each pedestal carries an upper panel support plate and each plate has a plurality of precisely dimensioned indexing members rigidly fastened thereto, one of said members being precisely positioned adjacent each corner of the plate. Each of the floor panels is provided with a precisely dimensioned indexing member receiving aperture on the underside thereof adjacent each corner of...