Abstract: Wall paneling includes a pair of corner panels, a center panel, and pair of end panels, each of a molded unit construction. The corner panels have a pair of right-angular walls and the other panels are flat. Each of the end and center panels have upright marginal enlargements terminating in edge flanges. The inner enlargement of the end panels and both enlargements of the center panel adjustably overlap and receive therein a corresponding portion of a wall of a corner panel and are coplanar therewith respectively. The end panels extend at right angles to the center panels. Adhesive is interposed between the overlapped portions of the end and center panels and corresponding corner panel. Said paneling may be used for covering the end and back walls of tub enclosures.

Abstract: A cutting apparatus for making circular or circular arc-like cuts in a sheet of material such as paper, cloth, leather, plastic, rubber and the like. A substantially planar base is provided to receivably support said sheet and a hinged apertured clamping plate is lowered over the supported sheet to secure it against movement during the cutting operation which takes place through the aperture. An arcuate arm is secured to the base and an elongated portion of the arm positions an internally-threaded vertically-oriented boss above the aperture. An externally-threaded member is operably received within the boss and includes an adjustment disc for turning said member to raise or lower same within said boss. A blade-positioning shaft is received within a vertically-oriented central bore in the member and includes a shoulder to secure the shaft for vertical movement with the member. The lower distal end of the shaft includes a threaded pin for being slideably received within a radius selecting slot of the blade.

Abstract: The conveyor belt cleaner serves as a mechanical cleaner for an endless conveyor belt entrained about a pair of drums and includes a plurality of independently operable scraper or wiper blade assemblies for removing from the conveyor belt various types of abrasives and other objectionable foreign material. Each scraper blade assembly includes an elongated arm or lever which is pivotally mounted on a pivot pin of a bracket assembly. Adjustable stop means is interposed between the bracket assembly and the arm at one side of the pivot pin to limit the pivotal movement of the arm in one direction. An extension spring is interposed between the bracket assembly and the arm at the other side of the pivot pin for urging the arm in said one direction to bias the scraper blade, secured to one end of the arm, towards the belt. As the blade wears, the extension spring pivots the arm and continues to bias the blade towards the belt, with the pivoting of the arm being limited by the adjustable stop means.

Abstract: An assembly of cleaners for a conveyor belt comprising a tubular support having first and second series of mounting openings which are arranged in a staggered or offset relationship to permit cleaners having spring arms of equal length to be mounted or positioned on the support without any interference between adjacent cleaners. With such a construction, the scraper blades provided at the ends of the scraper arms overlap but do not hit each other as normally occurs when the mounting openings in the support are longitudinally aligned rather than staggered.

Abstract: The conveyor belt cleaner serves as a mechanical cleaner for an endless conveyor belt entrained about a pair of drums and includes a plurality of independently operable scraper or wiper blade assemblies for removing from the conveyor belt various types of abrasives and other objectionable foreign material. Each scraper blade assembly includes an elongated arm or lever which is pivotally mounted on a pivot pin of a bracket assembly. The scraper blade is secured to one end of the arm and is located at one side of the pivot pin. An adjustable stop is interposed between the bracket assembly and the arm at the other side of the pivot pin to limit the pivotal movement of the arm in one direction. A compression spring is interposed between the bracket assembly and the arm at said one side of the pivot pin for urging the arm in said one direction to bias the scraper blade, secured to one end of the arm, towards the belt.

Abstract: A glazing adaptor for converting the effective width of the window panel receiving opening of a window frame from a first width to a second width, with the difference between the first and second widths exceeding the thickness of a pane of glass. The adaptor is a rigid unitary insulating structure including a first portion for frictional engagement with the window frame opening and a second portion to frictionally retain a window panel. Each of the adaptor portions includes flexible insulating barbs positioned for tight, water-resistant sealing with the window frame opening and the window panel, respectively. The second portion of the adaptor also includes resilient pads positioned to cushion the window panel.

Abstract: A below ground swimming pool formed of light-weight framed, wood sheet walls arranged within a preformed pool shaped hole, with a water impervious, thin plastic sheet liner covering the inside surfaces of the walls and the ground enclosed by the walls, and with the walls being held against collapsing inwardly, upon draining of the pool, by braces secured to the outer or ground side of the walls. The braces are formed with horizontally extending legs located at the lower edges of the walls so that such legs are weighted by the ground to maintain the braces and walls in position and so that such legs also function as support footings for the walls.

Abstract: This disclosure relates to a method for filtering suspended oil contaminants from an aqueous-based liquid. The method includes flowing the contaminated liquid through a bed of granulated black walnut shells which have a relatively weak affinity for oil. The suspended oil is coalesced during flow through the filter bed to form globular oil particles that are large enough to become entrapped in the interstices of the filter bed. After a substantial quantity of oil has been accumulated in the filter bed, the bed is rejuvenated by flowing backwash liquid therethrough to provide a high velocity scrubbing to free at least a portion of the accumulated oil from the bed, the shells' weak affinity for oil facilitating such rejuvenation. Next, the bed is reformed and a subsequent filtration cycle is initiated.

Abstract: In a lead acid or the like storage battery having a case and a plurality of cells with each cell having positive and negative plates. A first cell connector strap connects negative plates of one cell to the positive plates of an adjacent cell successively and terminates in a positive terminal connector upon the interior of the case. A second cell connector strap connects the positive plates of one cell with the negative plates of an adjacent cell successively and terminates in a negative terminal connector upon the interior of the case which has an apertured closure base. A platform is mountable upon a vehicle or other support and includes a pair of projecting terminal connectors adapted to be received and projected up into said case for respective connection with the positive and negative terminal connectors respectively. Mounted upon the platform is a connector adapted for connection to a ground and to a powerline respectively.

Abstract: A method of making blown plastic articles of non-circular cross-section, having convex exterior portions, such as a bottle of rectangular or oval shape, or having localized protuberances. The article is blown from a pre-form of inverted shape, i.e., the convex article portions are formed from concave pre-form portions. Also, the concave, pre-form portions are of increased thickness to compensate for their greater subsequent expansion during blowing.During final blowing, the non-convex portions of the article are first formed against the mold cavity-thereby stabilizing the partly blown pre-form in the blow mold cavity-and the concave pre-form portions are then blown to their final convex shape to complete the article.

Abstract: This disclosure relates to a nut and panel assembly and method wherein the panel is pierced into a nut chamber and the bolt threadably engages the panel. The disclosed nut includes a circular chamber which receives the pierced portion of the panel for threaded engagement by the bolt and a coaxially aligned smooth cylindrical passage which threadably receives the bolt.

Abstract: A power amplifier circuit including a low power output general purpose operational amplifier. The circuit provides an output voltage swing far greater in magnitude than the output voltage swing of the operational amplifier and with a faster response than the slew rate of the operational amplifier. The circuit, which is complementary, includes voltage dividers which couple the output of the operational amplifier to constant current mode driver transistors. Power transistors amplify the output of the constant current mode transistors to provide a high power low distortion output.

Abstract: A closure plate to close the open end of a feed chute for a bottle crusher or the like. The closure plate includes a plurality of sheets of relatively stiff but resilient material each having a plurality of equally spaced apart slits extending radially outwardly from the center thereof toward the outer edge of the sheet to form a plurality of flexible tongue segments with the slits of one sheet being offset relative to the slits of the adjacent sheet so that the tongue segments of one sheet overlap the slits of the adjacent sheet. The closure plate may be formed by casting or molding the sheets individually or by providing core plates and a molding cavity and molding a unitary structure with a layer of the stiff, resilient material on each side of each core plate, then slitting the layers to form the tongue segments and then removing the core plates.

Abstract: A box of transparent glass or synthetic resin for a pet dog, its front wall is a door to let in and out the dog, the side walls of the box each having an opening to allow the arms of a person who takes care of the dog to get in the box and a lid member in the top of the box is provided with dryer means consisting of a heater and fan so that the dog can be seen from the outside of the transparent box to enable to the person to dress the hairs of the pet dog in the box with his hands.

Abstract: An improved feed through capacitor for radio frequency suppression adapted for universal connection between a source of supply and each utilization device in a vehicle. A conventional capacitive winding is encapsulated in a non-conductive container. A rigid conductive blade having opposite male and female ends of the plug-in type extends through the winding and into the encapsulated container. The male end emerges from the encapsulated container at one end thereof and the female end terminates electrically accessible of the encapsulating material at the other end thereof. A flexible grounding lead is connected to the conventional winding and extends through the encapsulation and outwardly therefrom. The blade supports the entire encapsulated capacitor for universal mounting.

Abstract: A heat transfer and conditioning unit includes a casing overlying a fire chamber. An exhaust conduit is disposed within said casing inwardly of its walls having an inlet to receive heated exhaust gases and an outlet adapted to communicate with a flue to atmosphere. The exhaust conduit includes a series of pairs of opposed parallel laterally elongated plates. Inwardly directed opposed V-formed plates interconnect adjacent plates to define a series of longitudinally spaced laterally elongated venturi passages along the length of said exhaust conduit. Said venturi passages effectively slow down the movement of the products of combustion through the exhaust conduit for increased quantities of heat transfer to the walls thereof. The walls of said exhaust conduit are spaced from the casing to define an independent fresh air heating chamber along the walls of said casing and exhaust conduit for the conductive transfer of heat to the forced fresh air passing therethrough.

Abstract: A bicycle support stand for detachable engagement with the bicycle pedal crank hub and adjacent bicycle frame element, for extending beneath the bicycle frame a sufficient distance to selectively support the bicycle upright on either its front or rear wheels. The stand is formed of a pair of metal rods joined together to form an upper frame element receiving fork and a pair of downwardly diverging legs extending transversely of and on opposite sides of the plane of the bicycle frame, with an upwardly opening support bracket joined to the rods between their ends, to receive and support the bicycle pedal crank hub. A manually applied hook engages over the bicycle frame element to releasably fasten the stand to the bicycle frame.

Abstract: A continuous slab casting mold plate formed of an inner face plate fastened face to face to an outer backing plate, and having curved side edges. A number of narrow, parallel grooves are formed in the surface of the face plate, with the grooves covered by the adjacent backing plate surface. The grooves are curved to correspond to the arc of curvature of the plate side edges. A shallow pocket is formed in the backing plate surface at each of the groove ends so that each pocket overlaps all of its adjacent groove ends. A water-carrying passageway through the backing plate communicates each pocket to the exposed backing plate surface for thereby, circulating cooling water through the grooves for continuously cooling the face plate.

Abstract: The method includes providing, arranging, and mounting a line or series of studs, between parallel fixed structures of building so that each stud when as formed and mounted has a more resilient flange and a less resilient flange and so that the more resilient flanges of any two adjacent studs face in opposite directions; equally the less resilient flanges of two adjacent studs also face in opposite directions.The method further includes the step of providing, arranging and mounting wall panels in staggered, alternated relation on the studs with the edges of two adjacent panels being secured to the less resilient flange of the same stud, and the center of each panel is adjacent the more resilient flange of a stud between the first named pair of studs.The studs may have less resilient and more resilient flanges as originally formed, and/or only one flange may be anchored to the channels to make that flange less resilient than the unanchored flange.

Abstract: A method of blow molding plastic articles in two blowing stages. A freely extruded pendant tubular parison is first blown into a pre-form, then the pre-form, while at the temperature most conductive to orientation, is blown to its final configuration. By performing certain operations on the pre-form prior to the final blowing step, improved products can be made. For example, by pinching shut a portion of the pre-form, handled containers can be made on a free extrusion blow molding machine. By stretching the pre-form prior to final blowing, containers of increased top-load or stacking capabilities can be made. .Iadd.This application is a re-issue of U.S. Pat. 3,781,395, issued Dec. 25, 1973, matured from U.S. Pat. application Ser. No. 110,685, filed January 28, 1971. .Iaddend.