摘要:
An article can include a protective core having two end portions. The article can include a number of support cores. Each support core can be positioned substantially adjacent each end portion of the protective core. The article can include a cold shrinkable material held in an expanded state over at least a portion of the protective core and at least a portion of each support core. The support cores, the protective core, and the cold shrinkable material can collectively be placed over an apparatus such that the cold shrinkable material tightens over a portion of the apparatus responsive to removing the support core from the cold shrinkable material.
摘要:
An article can include a protective core having two end portions. The article can include a number of support cores. Each support core can be positioned substantially adjacent each end portion of the protective core. The article can include a cold shrinkable material held in an expanded state over at least a portion of the protective core and at least a portion of each support core. The support cores, the protective core, and the cold shrinkable material can collectively be placed over an apparatus such that the cold shrinkable material tightens over a portion of the apparatus responsive to removing the support core from the cold shrinkable material.
摘要:
An article of manufacture includes a protective core having at least two end portions, a plurality of support cores, and at least one cold shrinkable material held in an expanded state over at least a portion of the protective core and at least a portion of each support core. One end of each support core interconnected with a corresponding end portion of the protective core. The support cores, the protective core, and the cold shrinkable material are collectively configured to circumferentially surround an apparatus such that the cold shrinkable material compresses over a portion of the apparatus in response to removal of one of the plurality of support cores from the corresponding end portion of the protective core.
摘要:
A fiber optic, Faraday-effect sensing coil has very low linear and circular birefringence, which remains stable over a wide range of temperatures. The coil is fabricated from a spun fiber having an effective linear beat length of 100 meters or more, and is annealed after being formed into the coil. The coil has improved discrimination for magnetic fields associated with electric current-carrying cables, and may be incorporated into an optical current transducer (OCT), either interferometric or polarimetric.
摘要:
A control mechanism for a boat having a seat assembly to support a pilot provides an outboard motor which is directionally controlled by extension and retraction of a control cable with the control mechanism having a pedal which is generally planar on its upper surface receptive of the pilot's foot. A bracket mounts the pedal at a location below the seat assembly so that the user occupying the seat can position one of his feet on the pedal. A pair of switch surfaces are disposed on opposite sides of the pedal, each surface extending above the pedal surface so that lateral movement of the user's foot when positioned on the pedal can contact one of the switch surfaces. A switch associated with each switch surface can then be activated for directionally moving the outboard motor into different positions responsive to pressure applied to one or other of the switch surfaces applied by the edge of the user's foot. In one embodiment, the pedal and motor are remotely placed with respect to one another, and the pedal "communicates" with the trolling motor using radio waves. In that embodiment, a transmitter is carried by the foot pedal or similar pilot-operated control, and a receiver positioned near the motor activates a reversible motor to steer the trolling motor, preferably by cable extension/retraction.
摘要:
An adaptor for controlling electrical stress in an electrical power cable includes a longitudinal insulative member and a semi-conductive member in contacting engagement with an end of the insulative member. A portion of the insulative member overlays a portion of the electrical insulation surrounding the electrical conductor, and a portion of the semi-conductive member overlays a portion of the semi-conductive shield.
摘要:
A method for delivering a geometric type stress relief element to a terminated electrical cable is provided. The cable contains a conductor surrounded by at least one coaxial layer of insulator, semiconductor, grounded wires and cable jacket. First, the terminated cable is tapered to expose a portion of the conductor so as to protrude beyond the insulation, which protrudes beyond semiconductor, which protrudes beyond the conductive wires. A geometric stress cone is preloaded onto a cold shrink tube. The terminated, tapered cable is inserted into the cold shrink tube. The cold shrink tube is removed and the geometric stress cone collapses onto the tapered cable. The cable is rated for supplying high voltage.
摘要:
A truck trailer having a pair of tandem spaced apart rear axles and a suspension system for supporting the axles from the chassis of the trailer having a pivot member intermediate the axles about which the axles may pivot relatively to one another, the axles being connected to respective ends of leaf springs. The trailer has apparatus for lifting one of the axles relative to the other axle selectively so that the wheels carried by the lifted axle may be lifted off the roadway. The apparatus for lifting includes air bags which may be inflated by pressurized air or deflated to control the position of the axle to be raised. The air bags are positioned between one of the axles and the chassis and when pressurized air inflates the bags the other axle is lifted about the pivot member.
摘要:
A load rotating attachment for a lift truck provided with an elevating carriage has a back plate sub-assembly including an upright wall adapted to be secured to the carriage adjacent and forwardly thereof. A front plate sub-assembly has an upright wall juxtaposed to the back plate wall and pivotally mounted thereon for rotation relative thereto with the major planes of the walls in parallelism. An upright framework is fixed to and extends above the back plate wall and supports a hydraulic ram thereon. A fixed upright of the framework serves as a guide track for a movable guide having a roller arm with guide rollers supported thereon for tracking on the guide track. The piston rod of the ram is pivotally connected to a drive link which in turn is pivotally coupled between and to said movable guide and to the rotatable front wall for bodily travel and pivotal motion in a path extending partially around and radially offset from the pivotal mounting of the front and back walls. This produces a 180.degree. rotation of the front wall and associated load-carrying forks. The forks are removably attachable for mounting in load carrying attitude on the front wall in either its 0.degree. or 180.degree. position to provide left-hand or right dumping of the load. The front and back plate walls have spacers disposed therebetween for maintaining the walls generally in parallelism against load induced bending moments exerted on said front plate assembly. Rotational lock-up and fork and carriage safety mounts are also provided.