Abstract: Apparatus for guiding a power circular saw across a workpiece and effecting splinterless cutting thereof and having a saw guide assembly with a shield member, a base member, the guide assembly being inoperative association with the workpiece.

Abstract: Coal devolatized and partially gasified in a travelling grate reactor is dropped into a shaft furnace to form a downwardly moving stack which moves then downwardly to and through a fixed bed gasifier, wherein it is burned to ash. A gas stream from the travelling grate reactor is down-drafted through the shaft furnace and a gas stream is up-drafted through the fixed bed gasifier, and the two streams combined are drawn through a heat exchanger and fed to a gas burner, combustion air for the gas burner being heated in the heat exchanger.

Abstract: A column of hot coke from a shaft furnace moves downwardly into a vessel which it fills and forms a pile. A gap is left between the angle of repose of the coke surface and the upper portion of the vessel. Water is sprayed onto hot coke as it enters the vessel. The gap is vented to an exhaust duct. A baffle near the center of the vessel deflects the material to the sides and creates a void in the center of the vessel, which void is also vented to the exhaust duct. More water is sprayed on the coke adjacent the void. Steam pressure in the vessel is reduced by a fan which pulls steam through the exhaust ducts. The steam pressure is regulated by a pressure controller which modulates a damper in the exhaust duct. A temperature controller regulates the flow of quench water to the vessel. This regulates the temperature and moisture content of the material being cooled.

Abstract: An extensible rod-like support engages between oppossing surfaces of wall studs or ceiling joists and is formed of telescoping rod members that threadedly engage, one within the other. A tubular nut-driving wrench engages over a nut surface on one telescoping member enabling the use of a wrench to turn the member while another wrench is used to turn the other telescoping member, which has a non-round external surface.

Abstract: A molded foam plastic plate packing box for china plates of different sizes has a bottom and lid each with opposite cooperating circular ridges between which a plate is confined.

Abstract: A hollow mandrel has a chute at one side near its top through which concrete is poured, and an open top through which re-inforcing steel is inserted. An expansible closure having an air conduit leading to its lower end is lowered into the mandrel below the chute and expanded, and air is forced into the mandrel while a lifting force is applied to it.

Abstract: Rigid with a plate mounted on a door jamb is an inward extension, on the free end of which is pivoted a latch which swings between door-blocking and door-unblocking positions. The latch is releasably retained in door-blocking position by a flat strip having one end pivoted to the latch and a free end engageable between the door and the door jamb. The latch also has an intermediate position which permits the door to be cracked open.

Abstract: Polypropylene plastic baskets for phosphorized or non-phosphorized copper anode nuggets are suspended, one on each side of a cylinder to be plated, in a bath of plating electrolyte. The tops of the baskets are disposed beneath the surface of the plating solution, the upper portion of the cylinder is above the surface of the electrolyte, lead anode conductor strips extend downwardly along the insides of the rear walls of the baskets, and the front walls of the baskets are perforate.After the cylinder is printed out, it is returned to the plating apparatus and reversely plated to remove the copper. In order to prevent the copper from building up through the perforations in the inner walls of the baskets and to keep reduced-size nuggets from protruding through the basket openings, a porous plastic sheet is disposed over the lower portion of the inner surface of the inner wall of each of the baskets.

Abstract: A parabolic electromagnetic wave reflector is formed of glued together identical sectors of foam plastic, each with a parabolic curve formed by the upper side, and each with joint elements which serve also as stiffening ribs along their radial edges. A reflective surface is applied to the concave sides of the sectors. When the sectors are joined, they combine to form a parabolic dish.

Abstract: Flooring felt containing glass fibers, cellulosic fibers, synthetic fibers, particulate inorganic filler, latex binder and calcium hydroxide.

Abstract: Coal is processed first through a moving bed reactor and then through a fixed bed reactor. Hot carbonized coal char is fed from the first stage reactor to the second stage reactor via a lock hopper and gas is taken off from the reactors either in separate streams or in a common stream.

Abstract: Organic carboxylic acid containing from 2 to 12 carbon atoms and having at least two carboxyl groups or at least one carboxyl group and one amino or hydroxy group or anhydride or halide of such acid is used in making aqueous, foam-growth-controlling printing ink composition for use in chemical embossing of heat-foamable and expandable resinous materials such as polyvinyl chloride.

Abstract: A cultivating tool propelled by a walking attendant has sheet metal tines mounted on a rotating axle for rotation therewith. The tines are channel-shaped with axle-accommodating apertures through the flanges and also through the webs. When the axle is engaged through the flange apertures, the ends of the web engage the soil flatwise so as to provide a hoeing action; and when the axle is engaged through the web apertures, the ends of the web engage the soil edgewise so as to provide a chopping action.

Abstract: A composition based on extract from cacti is used as an insecticide against soft bodied insects injurious to plants. A process for preparing the extract and its use as an insecticide are given.

Abstract: An attachment to the beam of a weight scale has a vertical post to retain weight unit discs, each with a hole in the center, and clamping means in combination with a counterweight clamped to the second beam of the scale at the opposite end.

Abstract: A plate has on its under side a V-shape keel of decreasing depth from end-to-end, a handle mounting on its upper side, and upwardly flared soil flattener at the ends of the plate.

Abstract: A panel brake has an intermediate jaw disposed between one fixed jaw having a straight edge and another fixed jaw having a curved edge. The intermediate jaw is movable so as to grip a panel against either the straight edge fixed jaw or the curved edge fixed jaw.

Abstract: Polypropylene plastic baskets for phosphorized or non-phosphorized copper anode nuggets are suspended, one on each side of a cylinder to be plated, in a bath of plating electrolyte. The tops of the baskets are disposed beneath the surface of the plating solution, the upper portion of the cylinder is above the surface of the electrolyte, lead anode conductor strips extend downwardly along the insides of the rear walls of the baskets, and the front walls of the baskets are perforated.When the cylinder is printed out, it is returned to the plating apparatus and reversably plated so as to return the copper to the nuggets. In order to prevent the copper from building up through the perforations in the inner walls of the baskets, a porous plastic sheet is disposed over the inner surface of the inner walls of the baskets.