Abstract:
The present invention provides a waveguide for the transmission of data signals therealong, with said signals typically received from, and/or transmitted to, a remote location and subsequently passed to or emitted from apparatus which allows the data to be processed. The waveguide includes a channel which has a cross sectional shape, the angular orientation of which is changed at at least one point along the length of the same so as provide a waveguide which is less sensitive to interference. The waveguide, in one embodiment can also include recessed portions and/or ridges along the length of the channel which ensures that the waveguide can be formed in a more reliable and controlled manner.
Abstract:
The specification discloses an automatic slack adjuster all moving parts of which are enclosed for connecting a brake rod to an actuating cam shaft for a shoe brake in which the adjuster body is mounted on the actuating camshaft by a worm gear rotatable within the body. A worm shaft which on rotation positions said worm gear in the body extends exteriorly thereof to mount a first ratchet part fixed to the shaft and a second ratchet part rotatable thereon. A fixed housing extending from the body and about the worm shaft accommodates an axially slidable actuating member which develops relative rotational motion between the fixed housing and the second ratchet part when moved from an inner to an outer position or from an outer to an inner position. The actuating member is connected by a tension member to a fixed abutment or anchorage but is normally biased outwardly by a spring, the limit of the outward position being determined by a sealing cap in such manner that all operating mechanism and moving parts are enclosed.
Abstract:
The specification describes an improved slack adjuster for application especially to air brakes on trucks in which all adjusting mechanism is contained entirely within the slack adjuster body, the slack adjuster mechanism within the body comprising, a driven ring adapted to be driven by a splined actuator and rotatable within a body drive ring, the driven ring having drive and reverse ratchet means and pawl means within the body ring meshing with the ratchet means of the driven ring for transmission of torque from the body ring to the driven ring, a separate slack ring rotatable within the body ring through a predetermined angle and having an anchor arm extending exteriorly of the body for connection to a rigid anchorage; a further adjuster ring is freely rotatable about the actuator shaft within the slack ring through a predetermined angle; ratchet means on the adjuster ring mesh with the ratchet means of the driven ring; and a compression spring urges the ratchet means of the adjuster ring and the driven ring into meshing relationship.