Abstract: A weather tight fastener, for joining two or more adjacent members, having a flanged sleeve member which is disposed through aligned openings in the members and a rod member having an enlarged end, engaging a portion of the tubular member for collapsing the unflanged end of the tubular member in a controlled fashion. The end of the rod member which is not enlarged, projects from the flanged end of the tubular member and is engaged by a holding plate which is slidable in one direction only. Disposed between the slidable holding plate and the exposed surface of the members to be joined are a rigid washer and a resilient washer which are necessary for proper setting and providing a secure weather tight seal. The rigid washer has a counterbore of the same general size as the flanged end of the sleeve. The steel washer is disposed with the flanged end of the sleeve nested in the counterbore.

Abstract: This invention constitutes an improvement upon the existing practice of manufacturing reinforced automotive heater hose and the like in a continuous operation which comprises continuously extruding an elastomeric tube, continuously applying to the outer surface of the tube an appropriate reinforcing layer of textile yarns or the like, continuously extruding over the reinforcing layer an elastomeric covering layer, and continuously curing the elastomeric components in an elongated chamber containing heat exchange elements the improvement residing in the provision of a method and means for elongating within certain limits the uncured or partially cured hose during the curing process whereby reduction of pressure and temperature within the extruding units and other advantages in production of reinforced automotive heater hose and the like may be realized.

Abstract: A composition for use in forming an asbestos free friction element includes a cross-linkable polymeric binder and glass fibers with a sufficient amount of an infusible organic fiber to mitigate the aggressive behavior of the friction element during operation.

Abstract: A double break air disconnecting switch for high voltage electric power installations having a switchblade fixed to a rotatable center insulator for unitary movement therewith and fixed jaw contacts mounted at the ends of the switchblade. A pivoting contact bar which is engaged by one of the jaw contacts is supported from each outside insulator stack. Each contact bar is pivotally supported from the associated insulator stack for movement between a closed position in high pressure engagement with the jaw contact and an open position not in high pressure engagement with the associated jaw contact. During closing as the contact bar pivots from the open position to the closed position, the contact bar pivots around its longitudinal axis with respect to the jaw contact from the low pressure engagement position to the high pressure engagement position.

Abstract: A tool for releasably gripping a rod comprising: a structure supporting a rod clamping assembly which is movable relative to the structure; a release to cooperate with the clamping assembly to release a said rod gripped by the clamping assembly; and means for producing the relative movement wherein the means for producing the relative movement includes a motion converter to convert rotary motion of a first member into linear motion on a second member and vice versa; a clutch connected to transmit rotary motion to the first member; means for selectively engaging and disengaging the clutch; and a spring connected to bias the second member in opposition to the linear motion produced by the rotary motion; the second member being connected to transmit the linear motion to the clamping assembly when said clutch is engaged; the clutch disengaging means disengaging the clutch when the relative motion has produced a predetermined travel of the clamping assembly and the spring being connected to return the second membe

Abstract: An electric current conducting bar of generally X-shaped configuration in transverse cross-section for use in an electric transmission system wherein a plurality of said bars of modular lengths, jointed in longitudinally alined end-to-end relation by various coupling assemblies, are fitted with insulating sheaths of generally inverted U-shape, also of modular lengths, which protectively cover not only the conductor rail per se and their coupling assemblies but also the current collector shoe which moves in electrical contact with the bar without any utilization of the insulating sheath primarily as a guide for the collector shoe. In a modified form of the X-shaped bar, the upper branches thereof are extended horizontally outward from opposite sides of the mid-section of the bar to provide the latter with a flat top having opposed longitudinally extending edges which are respectively accommodated in opposed longitudinally extending inner grooves formed in the insulated sheath.

Abstract: A muffler for internal combustion engines, compressed air tools and the like, has a tubular core with one end having a connection with a source of exhaust gases and the other end closed or valved in such manner as to prevent build-up of back pressure with an increase of exhaust gas flow above a selected maximum. Intermediate its two ends a length of the core is perforated around its entire periphery. A succession of dished annuli are fitted about a perforated area of the core with alternate annuli reversed so that they are arranged in several pairs with the peripheral edges of each pair converging to form between them an attenuation chamber from which gases entering the chambers through the central core escape at the peripheries of the chambers, the larger circumference of the gas escape passages at the peripheries of the chambers in relation to the gases entering the chambers through the perforations in the tube relieving the pressure while the sound is attenuated to a greatly reduced level.