Abstract: A circular traveling grate machine includes rotatable, inner and outer, rail mounted, side frame members forming the sidewalls of an annular hearth region therebetween. A plurality of individually tiltable pallets are positioned in the hearth region and are movable with the side frames along a circular pallet trackway which is positioned within the inner and outer rails of the side frames. A stationary hood is mounted above the hearth region carrying sealing flanges at its lateral edges which extend downwardly in a pair of liquid troughs carried by the rotatable side frames. A stationary windbox is situated below the pallets and is also sealed off by way of lower liquid seals coacting with the side frames. The pallets carry a pair of rotatable hanger brackets at the leading ends thereof which are latched to the undersides of the inner and outer side frames.

Abstract: Discrete volumes, or slugs, of liquid are accelerated to high velocities utilizing energy stored by compressing the liquid. Liquid is forced into a pressure vessel already filled with liquid to effect the compression. A slug of liquid is ejected from the pressure vessel into a cumulation nozzle by the energy stored in the compressed liquid when a valve is rapidly opened. The valve is opened when an opening force, generated by the compressed liquid, exceeds a closing bias. By repetitively introducing highly pressurized liquid into the pressure vessel, the valve automatically cycles to generate a series of pulsed liquid jets. Rapid opening of the valve is aided by an extension on the valve member which sealingly slides inside the passage of the cumulation nozzle to block release of liquid until the valve member accelerates sufficiently that the required opening rate is achieved as the extension clears the nozzle passage.

Abstract: A pallet construction for use in a circular traveling grate machine of the type having rotatable inner and outer side frames which move with the pallets on either side thereof. Various restraining and float means associated with the pallet hanger brackets and their respective axles, as well as with one of the pallet wheels and its respective axle, restrain and permit relative movement of the pallet axles in given radial and circumferential directions, whereby forces and moments are transmitted by the pallets as they mechanically couple the inner and outer side frames. The aforesaid restraining and float means also accommodate the differentials in thermal expansion and contraction between the pallets and the cooler side frames of the traveling grate. The first axles and hanger brackets include spherical antifriction means which permits the pallets to rotatably tilt during the burden discharge operation in situations where the first axles are axially misaligned due to thermal sagging.

Abstract: A carburettor has a butterfly valve formed with an internal passage and outlet openings communicating with the passage. Fuel is discharged through the butterfly valve into the air stream to form a combustible mixture.

Abstract: A display device comprises a plurality of frames each comprising two uprights and two cross members, bounding a rectangular space in which a rectangular flexible sheet is supported in tension by tensioning devices displaced in the corners of the frame. Laterally adjoining frames are pivotally connected together by links and engage one another via masking gear segments mounted on the tensioning devices. Vertically superimposed frames are connected together by connectors each connecting, end to end, the lower end of one upright of an upper frame and the axially aligned upper end of a lower frame. Each connector comprises an upper peg, a lower peg and an axially slidable and rotatable sleeve captive on the upper peg and capable of being screwed down over the lower peg.

Abstract: A paper-shredding machine has a sleeve mounted for limited movement towards and away from a surface of a housing of the machine to define an inlet opening, through which paper can be fed to cutters disposed within the housing. The sleeve normally occupies a position in which the inlet opening is closed but can move relative to the housing to admit paper through the inlet opening.

Abstract: A method for anchoring a bolt, having a helical channel adjacent the end thereof, in a bore hole in a rock-like structure, especially in anchoring of mine roof bolts, wherein a resin package is first inserted into the bore hole and the bolt is inserted and rotated in a direction opposite the direction of the helical channel to fragment the resin package and mix the resin, and prior to complete hardening of the resin, but after substantial hardening thereof, the bolt is rotated in the opposite direction while the resin completely hardens to anchor the bolt in the rock-like structure.

Abstract: Coal tar resulting from the gasification of coal in an industrial gas producer, instead of being discarded as waste, is condensed from the hot fuel gas by a mist-like spray of water to produce a fog-like suspension of tar mixed with the fuel gas. This mixture flows to an electric precipitator where the tar is precipitated and the fuel gas and water vapor are conducted to a mixer while the tar, which has been condensed, is supplied to a tar burner where it is burned either with a stoichiometric volume of air, or less than a stoichiometric volume. The product gases from the tar burner are conducted and discharged hot into the mixer where they supply sensible heat to fuel gas and water vapor and raise the temperature of the mixture above the dew point of the tar remaining in the fuel gas, and from which the hot mixture produced is delivered to a fuel burner or gas consuming apparatus.

Abstract: A stepper for use between a transducer subjected to variable pressure, heat or liquid level for converting the continuous output signal of the transducer with all of its variations, both of significant magnitude and those of insignificant importance, into a continuous stepped output signal that increases or decreases the current to a transducer responsive control unit, particularly a servo amplifier, which stepped signal eliminates all minor and unimportant fluctuations from the output current from the transducer. The stepper also includes a sequence of voltage regulators such as potentiometers in the circuits between the stepper and the servo amplifier by means of which the magnitude of the current flow of each step to the servo amplifier may be adjusted or programmed with respect to one another. It is particularly useful in the regulation of flow control valves in water distribution and sewage disposal systems, but its application to steam boilers is also disclosed and described.

Abstract: A beverage can lid spout unit is provided with a closing lid movable between open and closed positions over a peripheral mounting part. A bellows part is secured within the mounting part and is biased to move outwardly when the lid is moved to an open position. When the lid is moved to a closed position, it compresses the bellows within confines of the mounting part to close-off the spout.

Abstract: A polyblend which has high heat distortion temperature and high impact strength is produced from 80 to 20 percent by weight of vinyl chloride resins, which comprise 90 to 30 percent by weight of a rubber-modified vinyl chloride resin and 10 to 70 percent by weight of a vinyl chloride resin that is not rubber-modified; and 20 to 80 percent by weight of a polymer of a vinyl aromatic monomer such as styrene, an unsaturated dicarboxylic acid anhydride, such as maleic anhydride, and an optional third monomer such as methyl methacrylate or acrylonitrile, which polymer may be a rubber-modified polymer.

Abstract: A composite dual wall cast urethane elastomer to metal thread protector that will be practical under normal as well as frigid temperature conditions of usage is formed by deep drawing a seamless metal shell wall, using a threaded die to define a mold cavity with the metal shell wall, forming and setting a synthetic elastomeric shell wall within the mold cavity in an adhering assembled relation with and along the metal shell wall with threading that is complementary with threading of the die, removing the assembly by unscrewing it with respect to the threaded die, and subjecting the assembly to heat treatment to cure the elastomeric shell wall and provide a composite protector having a cast urethane elastomer wall in a secure adhering encapsulating relation on the metal shell wall.

Abstract: A tracked vehicle is tethered so that as it skids on a pile of bulk material, the cleated tracks transfer the material toward the tethered end. The tethering rope hitch point on the vehicle is translatable laterally to effect controlled sideward skiding for sweeping bulk material from a wide area and is located at one end above the vehicle center of gravity so that the vehicle can be lowered by the tethering rope through narrow openings in storage chambers yet come to rest upright. The tracks comprise cleated endless belts coupled to endless wire ropes at the end pulleys by resilient rail members made of two rows of discrete blocks bolted to the belts which are wedged against the wire ropes by grooves in the pulleys so that tension induced in the wire ropes resists the lateral forces tending to cause the belts to creep along the pulleys.

Abstract: An overload clutch comprising a driving part and a driven part releasably interconnected in torque transmitting relationship by balls, held in a cage in engagement with torque transmitting recesses of the parts and which can be disengaged by relative rotation between the driving and driven parts when the torque to be transmitted exceeds a predetermined value and in which spacers are moved by the cage into spacing relationship with the parts to maintain the balls out of engagement with the recesses after disengagement with the clutch, and wherein the clutch can be re-engaged by relative rotation between the parts in the reverse direction to that which caused disengagement by the provision of two pairs of inter-engageable abutments and a first control means to prevent inter-engagement of one pair of the abutments as a result of relative rotation when the clutch is disengaged and to permit of inter-engagement of the abutments of the other pair on resetting by relative rotation in the reverse direction, and secon

Abstract: A barrier system is disclosed in which uprights comprise columns, each surmounted by a head member including a slotted member affording a plurality of longitudinally extending slots opening onto an upper axial end face of the slotted member, and a cap which can be screwed down into engagement with said end face to close off the axial ends of the slots, the slots open onto the periphery of the slotted member via restricted throat portions, so that radial withdrawal of fitments of complementary form, for example provided on the ends of horizontal barrier rails, can be prevented.

Abstract: This invention relates to a finger ring adaptor device or bridge that will permit use by the wearer of a ring of a sufficient size to be easily slid over an enlarged knuckle or joint and to be thereafter reduced to a desired snug fit on the phalanx or digital portion of the finger.

Abstract: An electrical connector device has a slot or opening therein for receiving an end portion of an electric current carrying line such as a conductor cable, wire or bus bar and, on such insertion, engage and push-back a slidable, piston-like, slidable control valve element against forwardly pressing spring-loading thereon to apply fluid pressure to and activate a clamping plunger-like latching element. The latching element engages and clamps the conductor end portion against a wall portion of the device in an efficient, electrical connecting relation within the device. Fluid, such as air under pressure may be applied continuously to the device and may, in accordance with one aspect of the invention, be continuously exhausted until an electric line is inserted for connection therein. A push-in element or plunger enables a quick release of fluid pressure and a corresponding quick release of the electric line when it is to be detached from a tight, electrically-efficient, clamping connection within the device.

Abstract: An apparatus system for drying gases to provide a reverse flow to and from a pair of absorbent beds is automatically solely controlled by a unitary inlet logic shuttle valve unit and by a unitary outlet logic shuttle valve unit. Each valve unit employs positive acting slide valve elements that operate in a smooth and effective manner.

Abstract: The piston rod of at least one hydraulic cylinder is axially connected to a pivot pin about which the car holding arm of a car holding device rotates in a vertical plane to engage the couplings between railroad cars. In the case of a single hydraulic cylinder, the inner chamber of the cylinder, located closest to the car holding arm, is connected to the outer chamber on the other side of the piston by a conduit. When hydraulic cylinders are connected to each pivot pin of the car holding arm, the inner chambers of the two cylinders are interconnected by a conduit as are the two outer chambers. When flow through the conduits is blocked by a solenoid valve, movement of the car holding arm in the direction parallel to the track is resisted and the arm holds the train in position.

Abstract: In the long wall mining of coal, a sectional pan-line is positioned along the working face of the coal seam parallel with the working face. The pan-line sections joined together have parallel rails along which the mining machine travels. At least one of said rails comprises a continuous gear rack at a height above ground with which a power driven gear wheel on the mining machine meshes for propelling the machine back and forth along the face of the coal. This invention is for a wheeled flat bed dolly having two parallel rails, one along each side, that are of height and width matching the rails of the pan-line. There is a support at one end of each of these rails to which the ends of the rails of the pan-line interfit with a temporary connection holding the dolly and pan-line against separation.