Abstract: An antiskid device for mounting on pneumatic vehicle tires including a pair of annular elastomeric tubular sidewall elements interconnected by a plurality of spaced traction straps. Each traction strap is a laminated structure including a pair of spaced layers of woven nylon web having a layer of rubber interposed therebetween and bonded to each nylon layer. A body of rubber is bonded to one of said nylon layers and has traction nubs projecting therefrom. The tubular elements are each of natural rubber and each has an inside diameter of from about one-fourth inch to about one-half inch, and a wall thickness of from about one-eighth inch to about three-sixteenths inch.

Abstract: An earring and pendant display case which includes a substantially rectangular back hinge panel having opposed, parallel side edges and opposed, parallel end edges; a pair of opposed, substantially rectangular display panels each having a side hingedly connected to one of the side edges of said back hinge panel, and each further having a second side edge and opposed, parallel end edges terminating in alignment with the end edges of said back hinge panel; and a pair of end hinge panels each including a first side edge and each having a second side edge, said end hinge panels being hingedly connected along the second side edges thereof to opposed end edges of each of said display panels.

Abstract: Apparatus for sawing which can be used either in portable, manually operated form, or as a stationary bench-mounted sawing device for sawing through a workpiece along predetermined angles of cut. The apparatus comprises a portable chain saw which includes a prime mover secured to one side of a flat mounting plate. A saw blade guide plate projects from the prime mover through a slot provided in the mounting plate, and in a plane substantially normal to the plane of the mounting plate. A saw blade is extended around, and guided by, the guide plate, and is protected by guard means pivotally mounted on the mounting plate. A cradle frame structure releasably receives and clamps the mounting plate in a table sawing position when the chain saw is to be so used. A cradle frame pedestal pivotally supports the cradle frame structure for pivotation about a horizontal axis.

Abstract: A device for transversely shearing a conduit including a first handle having a recessed conduit-receiving jaw at one end thereof, a shearing blade pivotally mounted on said first handle at the location for pivoting toward and away from said jaw, and including a plurality of ratchet teeth along one edge thereof, and a second handle pivotally connected to said jaw. An elongated toothed pawl bar having an elongated slot near one end thereof, and having pawl teeth at the other end thereof, is pivotally secured by a pivot pin extending through said slot to said second handle at a point spaced from its point of pivotal connection to said jaw. A cam stud secured to said first handle bears against one side edge of said pawl bar opposite the edge upon which the pawl teeth are located, and functions, when the handles are pivoted toward each other, to cam said pawl bar to a location at which said pawl teeth engage said ratchet teeth.

Abstract: A triple-sash double-hung storm window assembly which includes a flanged, multiple channeled extrusion of generally rectangular overall configuration. The primary window or first sash of the assembly is the conventional double-hung window built into the house, and the flange of the multi-channeled extrusion is secured to a framing element which surrounds the conventional window at its outer side. The extrusion defines two staggered or offset compound channels forming an intermediate sash and an outer sash. The compound channel which defines the outer sash is peripherally inset from the compound channel defining the intermediate sash so that window and screen elements mounted in the outer sash can be mounted and demounted from the interior of the house, first through the intermediate sash and then through the conventional double-hung window.

Abstract: A method of sealing building openings, such as windows or the like, which comprises initially bonding a strip of ferro-magnetic or magnetic material to the structure which defines the opening in a course around the periphery of the opening. A strip of material which is magnetically attracted to the first-mentioned strip is then bonded to a closure panel in a course position to register with said first-mentioned course. Finally, the closure panel is positioned across the opening with the two strips of material superimposed, in registry and in contact to magnetically retain the closure panel in a pre-selected position in relation to the opening.The apparatus used in carrying out the invention comprises at least two elongated strips of magnetic material having a strip of bonding material on one side thereof, at least two additional strips of material magnetically attractable to the first strips, a panel and adhesive bonding the additional strips to the panel at spaced locations on the panel.

Abstract: A walker apparatus is disclosed which includes a support structure which extends substantially from the ground to the underarms of the user and encloses the user. The support structure includes a number of horizontally disposed ring members which are vertically separated by a plurality of struts and are pivotally connected to a longitudinally extending axial member. The support structure also includes a locking mechanism which is disposed at the upper front of the support structure. The walker apparatus also includes hand grips or, alternatively, crutches which extend from the uppermost ring member to the floor.

Abstract: A method and system for producing elongated Z-fold copy paper having indicia emplaced thereon by xerographic reproduction. The method entails initially transversely scoring and folding an elongated sheet of paper at spaced intervals therealong with alternate adjacent score-fold lines being originated by pressures exerted on respectively opposite sides of the paper. The elongated scored sheet is then rolled up in a cylindrical roll, and is fed from this roll to a copying machine into close proximity to a rotating xerographic copying drum within the machine. After emplacement of indicia on the paper in the reproduction process, the paper may then be rolled up on a storage roll or Z-folded manually or by suitable apparatus.

Abstract: A fracturing fluid composition consisting essentially of a viscous aqueous solution having a high concentration of cations, an anionic or nonionic viscosifier imparting a high viscosity to the composition, and an anionic, polymeric fluid loss material which is substantially insoluble in the aqueous solution, and is soluble in fresh water substantially free of the cations in the fracturing fluid.In the method of fracturing using the fracturing fluid compositions of the invention, the composition is injected into the fracture via the well bore to enlarge and/or extend the fracture. Completion of fracturing is followed by injection of fresh water into the fracture from the well bore to dissolve the anionic, polymeric fluid loss material, and displace the fracturing fluid composition into the formation upon continuation of a water flood operation.

Abstract: A polymer composition which includes, as a smoke suppressing additive, a complex of a Friedel-Crafts halide compound with an organic compound selected from the group which includes quaternary ammonium compounds, quaternary phosphonium compounds, tertiary sulfonium compounds, organic orthosilicates and the partially hydrolyzed derivatives of organic orthosilicates, or a combination of these.

Abstract: A variable utility chain saw apparatus which includes a mounting frame, a mounting plate removably carried in the mounting frame and a portable chain saw secured to one side of the mounting plate and including a saw blade guide plate which projects through a slot in the mounting plate and supports and guides a flexible saw blade. A chain saw guard subassembly is pivotally connected to the mounting plate to protectively shield the saw blade without interfering with the sawing function of the blade. A supporting assembly adapted for securement to a cylindrical structure is detachably fastened to a support flange which is secured to, and projects from, the mounting frame. The supporting assembly can take several forms to facilitate usage of the saw apparatus for accomplishing several precision sawing functions in the field or at a workbench, all in addition to the customary manual usages of a conventional portable chain saw.

Abstract: A device for transformation of alternating current-voltage which includes a core, a primary winding subassembly and a secondary winding subassembly. One or both of the primary and secondary winding subassemblies consists of at least one pair of equal turn and approximately equal resistance windings wrapped co-directionally around the core, and each having an equal number of tapped sections. A special tandem switch selectively interconnects tapped sections within winding pairs to provide a desired output terminal winding array such that all sections connected through the switch are energized, and are in the current carrying path at all selected switch positions, with selectively seriesed and selectively paralleled portions of the switch-coupled winding pairs being selectively encircuited at each switch position.

Abstract: Apparatus for treating the internal wall of a pipeline by scraping, cleaning, painting or the like, including an elongated pig, a mounting assembly connected to the trailing end of the pig, rollers movably supported on the mounting assembly for rotational movement around the longitudinal axis of the pig, for radial movement relative to the longitudinal axis of the pig, and for canting movement in which the rotational axis of each roller can be selectively skewed with respect to a chord of the diametric cross-section of a pipeline in which the apparatus is located, with the longitudinal axis of the pig coinciding with the longitudinal axis of the pipeline. Resilient biasing means is provided for constantly urging the rollers radially outwardly with respect to the longitudinal axis of the pig. A plurality of spaced surface treating elements are rotatably carried on the mounting assembly for rotation about the longitudinal axis of the pig.

Abstract: A system of flexible conduit and fittings useful particularly, though not exclusively, for conveying, supporting and connecting electrical service cables and wires. The system includes a corrugated, synthetic resin conduit which is flexible and mechanically strong, connector sleeves for clampingly engaging sections of the corrugated conduit in end-to-end relation, and hanger sleeves for clampingly engaging the conduit and suspending it from a wall or similar surface. A novel electrical outlet box is provided and includes internally toothed conduit-receiving inlet fittings for securely engaging an end of the conduits in inlets to the box.

Abstract: A tool for tightening an endless drive belt which includes a jaw having a concave gripping face, a lug-engaging toe projecting from said jaw at one end of said jaw at the terminus of said concave gripping face, an elongated lever arm having a bifurcated bracket at one end thereof receiving and engaging said jaw at a location spaced from said lug-engaging toe, and fasteners adjustably fastening the bracket to the jaw.

Abstract: A fireplace system comprising a hollow base pan and a shroud supported on the base pan and defining a combustion air chamber of inverted U-shaped configuration having open lower ends communicating with the interior of said hollow base pan. The shroud includes holes which open from the combustion air chamber into a central, front fireplace opening. An air plenum chamber is supported on the base pan adjacent the shroud and includes a firewall which defines a firebox, and a spaced wall which defines with the firewall and with the stack extending upwardly from the firebox, an air plenum space. A damper is located at an elevated location in the stack and includes an operator projecting downwardly to an accessible location at the top and forward side of the firebox. An insulation zone surrounds the air plenum chamber.

Abstract: A low-density, high-strength cement composition useful in a high temperature environment, such as in thermal wells, which includes hydraulic cement, a siliceous material and a relatively low-density inorganic material.

Abstract: A cover for a water closet seat which includes an annular panel of flexible fabric having an inner peripheral edge and an outer peripheral edge, and adapted to fit across and cover the upper surface of a water closet seat. A band of resilient material is mounted at and around the outer peripheral edge of the panel and constrictively urges the outer peripheral edge to a contracted, converged position. A hem channel is carried by the panel at its inner periphery, and is transversely traversed by a channel closure which blocks the channel at one point around its peripheral extent. At a location spaced along the hem channel from the channel closure, a channel opening is provided. A two-ended, resilient stiffening member is positioned in the channel with the two ends thereof abutting the channel closure.