Abstract: Undulations in ear side of tag, such as alternating ribs and troughs, permit air flow to area around stem of pin having conical head or point. Hole leading to socket well is larger than pin stem and the socket well is larger than the large end of the pin head to permit air flow to ear as well as permitting tag to move around pin to maintain air passages clear. Pin has a soft plastic base attached to stem opposite conical point and a hard plastic button larger than head of pin, surrounded by soft plastic. Pin stem has groove at button, which has holes and convex undersurface. Applicator has opposed arms on pivoted handles, one arm having a laterally enlarged platform with a rim on both sides and at rear, the latter to position the pin base longitudinally. Spring clip engages pin base and has slot to laterally position pin stem. Opposite arm has rimless surface engaged by tag head, to permit different angular tag positions, for about 260.degree..

Abstract: A self-relieving bar screen, for intercepting debris moved by a liquid through a conduit into a space having a greater lateral dimension, includes a series of bars disposed in spaced lateral relation in a position normally opposite the discharge end of the conduit, with a lower, generally forwardly extending portion of each bar below the lower edge of the conduit and a generally upwardly portion extending up to opposite the upper edge of the conduit. The series of bars extend laterally past each side of the conduit but for a distance less than the width of the wall at which the conduit terminates. The side spaces thus provided permit liquid to flow to each side of the bars, in the event debris accumulates on the bars and may otherwise tend to obstruct the flow of liquid. The bar screen may be moved upwardly periodically with the debris collected thereby and emptied into a receptacle or the like, through a pivotal rake which is specially positioned.

Abstract: A hopper cylindrical about a vertical axis has an agitator with blades rotating near the bottom of the hopper, not only to agitate insulation but also to move it through a hopper outlet opening into an airlock having a horizontal shaft and radially spaced blades. The vertical shaft for the hopper agitator and the horizontal airlock shaft are aligned so that one may be driven from the other, as by miter gears. A motor and reduction gearing may drive the airlock shaft, through a chain and sprocket connection, or the motor and reduction gearing may drive the hopper agitator shaft through a coupling. The blades of the airlock rotor may be individually removable through the airlock inlet, as in order to replace flexible wipers. Each airlock blade may have a flange at an obtuse angle such as 150.degree. which is bolted to one side of the multisided shaft by a series of cap bolts.

Abstract: Composition produced from paving grade asphalt, process oil (not over 32%) and SBR rubber or rubbers, such as butadiene-styrene copolymers, in decreasing amounts by weight. A preferred range is asphalt 41.9-61.25%, process oil 18-25%, lower molecular weight butadiene-styrene copolymer 8-17%, higher molecular weight butadiene-styrene copolymer 2-4% and filler, such as limestone dust, 0-20%. Other preferred formulae are shown, as well as temperature and other conditions of the preferred method, including reheating of composition for application to joints, cracks and the like.

Abstract: The heat exchanger has a hollow coil through which a liquid is to flow, having a series of adjacent, essentially parallel turns, between which turns members having apertures for the flow of a fluid therethrough, elongated heat conducting paths and in compressed and deformed condition are disposed, for clamping contact with the turns and pressure contact with each other. Examples of such members are woven mesh having strands and expanded metal foil. The members extend across the space encompassed by the turns and thus conduct heat between the turns and a fluid passed through the mesh members in the direction of the axis of the coil, i.e. perpendicular to the planes of the coil turns. The members and coil turns are maintained in compressing contact by a perforated plate at each end of the coil, which plates engage the adjacent members.

Abstract: The invention is an apparatus for collecting and transporting thermal energy as vaporized fluid. The vapor will flow from a heat absorption chamber and through a conduit to a point of use where it is condensed. The heat absorption chamber includes a sump in its lower portion to hold a puddle of fluid. A heat source directed against the chamber vaporizes the fluid therewithin and a replacement fluid supply connects with the chamber to maintain the level of the puddle during vaporization. The chamber of the preferred embodiment of the invention is an elongated heat absorption pipe mounted horizontally to maintain the puddle at the lower portion of the pipe. The heat absorption pipe is mounted in a solar collector to receive concentrated solar energy as from a reflector system.