Abstract: A proofer container for use in the baking industry fabricated of high-density material exhibiting substantial imperviousness to environmental contaminants. A unitary structure is provided with a suitably shaped dough-receiving receptacle and is configured to receive and contain a quantity of dough to be proofed, or raised in an intermediate step in the production of baked products. The unitary structure may be provided by use of a typical rotomolding process that is further enhanced by the insertion of a pin extending through an end wall of the mold and extending into the mold cavity to an adjacent section to a location so that the interior of the pin is spaced from the adjacent section by a distance substantially equal to the thickness of the walls of the tray to be fabricated.

Abstract: Apparatus for attachment to a boom of a backhoe or other mobile material handling machine, having a stick member pivotally attached to the boom, a first jaw and shear pivotally attached to the distal end of the stick member, and a second jaw and shear pivotally attached to the first jaw and shear, so that power actuation of one jaw causes opening and closing of the jaws and permits interleaved jaw engagement and shearing action between the jaws near the closure position. A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having is edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: A railroad track rail lifting and breaking machine having a mobile frame to be drawn along the bed of a railroad track, runners directing downward thrust onto the ties, guides for directing the rails upwardly over the frame and runners and through a slide, the slide having clamps for clamping to the rails, there also being pressure shoes for bearing against the inner sides of the rails when clamped to break the rails, and a notching blade for producing nicks on the inner sides of the rails opposite the anvils over which the rails are broken by the pressure shoes.

Abstract: A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having its edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: A portable, lightweight outrigger for canoes and the like includes adjustable clamps for varying the disposition or reach of oarlock pivots with respect to the centerline of the canoe, self energizing clamps for resisting rowing torque and stabilizing the outrigger under operating conditions and reversible oar lock sockets to compensate for wear.

Abstract: A fireplace door assembly having doors pivotally mounted on a frame to be mounted on the opening of a fireplace. The doors are mounted on hinges that provide adjustment along a vertical axis of rotation and the front of the frame. An adjustable fire resistant gasket is used for an air seal. A gravity operated latch is provided to maintain the door in a closed position.

Abstract: A gas-fired, condensing mode, hot air furnace has an exhaust passage for carrying the products of combustion from a gas burner to an exhaust flue. A heat exchanger is provided in the exhaust passage for extracting heat from the products of combustion. An air passage is provided for carrying a flow of air over the heat exchanger and a blower causes a flow of air through the air passage. The gas burner is enclosed and fires into the heat exchanger. A fresh air duct communicates with the burner enclosure for admitting fresh air thereto. A condenser is provided in the exhaust passage for removing water from the products of combustion, the condenser being exposed to the air passage. A second blower is provided in the exhaust passage for causing fluid flow therein from the fresh air inlet duct through the enclosure and the exhaust passage to the exhaust flue.

Abstract: The hand tool includes a drive shaft formed with axially spaced cylindrical portions has a work engaging member thereon. A bearing assembly comprised of two oppositely acting clutch units slideable within a tubular handle to engage one or the other of the cylindrical portions on the drive shaft to determine the direction in which the drive shaft rotates. When the clutch units are engaged with both cylindrical portions, then the tubular handle is coupled directly to the drive shaft so that the shaft is rotated in whichever direction the handle is twisted.

Abstract: A pneumatic conveying apparatus for silage and haylage, including long conveying ducts to carry the air stream with haylage and silage entrained therein. A positive displacement pump produces a flow of significant quantities of air to an air lock. The air lock has a rotor with blades traveling around the cylindrical peripheral wall and end wall defining traveling air lock compartments, the peripheral wall has an opening at its upper portion defining a feed throat receiving silage and haylage from a raised hopper. A high speed rotary impeller rotor at one side of the feed throat propels the silage-haylage into the air lock compartment. The rotor has sharp edged blades wiping along the edges of the air lock rotor blades and a boundary edge of the feed opening of the air lock.

Abstract: The variable valve operating mechanism comprises lower and upper rocker arms. The lower rocker arm is mounted for pivotal movement about a fixed axis and the upper rocker arm is mounted for pivotal movement about a shiftable axis. The free end of the lower rocker arm engages the valve to be actuated and the free end of the upper rocker arm engages various portions of the first rocker arm when the shiftable axis is spaced relatively far from the fixed axis. When the shiftable axis is moved toward the fixed axis, the valve lift starts to increase. By means of a curved cam surface, the duration or time that the valve remains open can be controlled. Provision is made for lubricating parts of the mechanism and provision is also made for adjusting certain parts of the mechanism so as to provide a specified amount of valve lash.

Abstract: A pivotal air door or velocity blade provides a carburetor and injection action which transitionally changes back and forth in accordance with the door's angular position. The angular position of the air door or velocity blade is controlled by the movement of an upper rocker arm relative to a lower rocker arm. A cam unit acts on a contoured follower surface on the upper rocker arm, and the free end of the upper rocker arm acts against a contoured follower surface on the lower rocker arm, the lower rocker arm in turn acting on the inlet valve of an internal combustion engine.

Abstract: A flashlight for bore sighting a long barreled shotgun or rifle including a cartridge case with an ejector rim and a primer opening in the base, and a sidewall defining an open front end; a battery and a light bulb within the case; a switch pin slidable in the primer opening to complete the circuit for illuminating the bulb, a spring normally urging the switch pin outwardly and a metallic bulb holder adjacent the front of the case; in a shotshell case, the bulb holder having a frame shank extending along the battery and to the base thereof, the shank having an apertured flange at the base of the battery, spaced from the battery by an insulator and the hole in the flange aligned with the switch pin.

Abstract: A diaphragm type magnetic speaker with conductor runs on the diaphragm, the conductor runs having a multiplicity of conductors arranged in a band in each run which confronts portions of two magnetized strips with front faces of opposite polarity and the space between such magnetized strips. The width of the band of conductors exceeds the width of the space between adjacent magnet strips and traverses the entire transverse portions of both of the adjacent magnetized strips from which the magnetic field for the conductor run emanates.

Abstract: An animal feeding apparatus includes a bunk, or trough for receiving solid feed and water and animal actuated hopper means disposed over the trough. The water dispensing function is provided by a plurality of valves having operators to be actuated, preferably, by the snout of an animal and which are configured and disposed to inhibit actuation by the animal at such times as the level of liquid in the bunk exceeds a predetermined depth. The feed dispensing function is provided by the simultaneous actuation of an elongated agitator, disposed on one side wall of the hopper and in a dispensing slot in the bottom of the hopper, and a grate, disposed above the agitator and adjacent the slot and the opposite side wall of the hopper, by an agitator arm connected to the agitator and the grate, and extending downwardly into the bunk for actuation by an animal. The agitator and the grate are pivotable about a common axis to provide different radii of oscillation.

Abstract: A PFA Teflon carrier for silicon wafers being processed in hot baths in the production of integrated circuit chips with sidewalls having wafer spacing webs and grooves receiving the wafers in confronting and spaced relation. The sidewalls having outboard channel supports or stiffening bars extending substantially to the ends of the sidewalls and adjacent offsets in the sidewalls which connect to the end walls of the receptacle, one end wall being H-shaped and having a cross bar panel with elongate parallel stiffener bars thereon at the level of the bottom edge of the wafer confining panels in the sidewalls, the stiffener bars in the end walls having their ends spaced from the sidewalls.

Abstract: A planar diaphragm type magnetic transducer with magnetic circuit wherein the magnet strips on the soft iron plate and confronting the diaphragm are arranged in a sequence south, north, north, south, south, north, north, south, et seq. The magnet strips are spaced across the transducer and the metal plates on which the magnet strips lie are apertured to make the plates acoustically transparent. Conductors are grouped in runs on the diaphragm opposite alternate pairs of magnet strips which have magnetic poles of opposite polarity at their front faces.

Abstract: A planar diaphragm type magnetic transducer with an acoustically transparent magnetic backing, and a diaphragm overlying and spaced from the magnetic backing, the magnetic backing having magnetized strips lying parallel to each other and adjacent magnetized strips having opposite polarities at their faces confronting the diaphragm, the diaphragm being stiff and resisting flexing and connected by a flexible surround at its periphery.