Abstract: A building panel of laminated construction having a flat, four-sided polygonal shaped hardboard sheet to one surface of which is bonded a thin, flat, plastic sheet having weather resistant properties and a rigid foam plastic layer having heat insulating properties bonded to the other surface of the hardboard sheet. The foam plastic layer has a tapered shape in cross section with the taper extending from a lower edge portion to a narrow upper edge portion. The hardboard and plastic sheets have an integral flanged lower edge portion in partial abutment with the lower edge portion of the foam plastic layer. A notch in the lower edge portion of the foam plastic layer adjacent the flanged lower edge portion, which notch is constructed and arranged to receive the upper edge portion of an adjacent lower building panel and thereby anchor the lower edge portion of the building panel and provide a seal at the joint.

Abstract: The web splicing apparatus for connecting a running web extending and traveling between a supply of web material and a web using machine to the end portion of a new supply of web material comprises a frame to which is secured and supported a splicing device. The splicing device has web clamps and cutting members and functions to connect the severed end portion of a running web to the end portion of a new web. Two sets of slide shoes are secured to the frame to engage a pair of rails so that the frame is reciprocatively supported for movement in the direction of travel of a running web, when the splicing device is operative to effect a splice, to thereby supply web to the web using machine and moves in a direction counter to the direction of travel of the running web after the splicing is completed.

Abstract: The roof de-icing panel comprises a relatively thin metal sheet having a plurality of spaced, substantially parallel channels formed in the bottom planar surface in which electrical heating cables are disposed. The de-icing panel has an integral gutter guard portion which overlies a gutter secured to the drip edge portion of the roof. The channels form juxtaposed raised portions extending above the top planar surface of the sheet to form dams or barriers to the upward flow of water along the top planar surface.

Abstract: A dual function torque limiter/no-back device for limiting torque to an output member and for preventing transmission of torque from such output member comprising a casing, an input member supported for rotation in the casing and connected to a source of rotary power to be driven by the latter. Also an output member is supported for rotation in the casing and connected to a load to be rotated. A drive coupling assembly is connected to the input and output members for transmitting torque from the input member to the output member and having torque response means operative at a predetermined torque value. A brake assembly is disposed in the housing and is operative to positions of engagement and disengagement.

Abstract: A reed valve assembly is provided with a reed sandwiched between two base members, e.g. a valve plate and a cylinder head of a compressor. The reed is clamped between the two members at a central part whereby both free ends of the reed can flex. The base members are so structured that one free end of the reed forms an intake valve members and the other a discharge valve member, whereby a single reed serves both as an intake valve member and as a discharge valve member. The invention also avoids rivets or the like elements by securing the reed to the base solely by the clamping action of properly recessed faces of the two base members.

Abstract: A coal supply gun assembly for a fluidized bed combustor which includes heat exchange elements extending above the bed's distributor plate assembly and in which the gun's nozzles are disposed relative to the heat exchange elements to only discharge granular coal material between adjacent heat exchange elements and in a path which is substantially equidistant from adjacent heat exchange elements.

Abstract: A modular two-unit rotary piston mechanism, each unit having a rotor, and a common mainshaft having a pair of eccentrics which are rotatively offset by 120 degrees and which support the rotors; this module is especially useful in forming a triple engine by coupling a single unit rotor to the common mainshaft so that the eccentric of the single unit is rotatively offset 120 so degrees from both eccentrics of the two-unit module.

Abstract: A combustion chamber for burning low BTU fuel comprising a generally cylindrical casing having adjacent outer and inner annular spaces defined by outer, intermediate and inner walls, the spaces intercommunicating at the downstream end of the casing thereby providing a U-shaped flow path. The outer annular space traverses the entire length of the casing while the inner space extends to the approximate mid-point of the casing, thereby communicating with internally disposed combustion units. In operation, fuel as coolant is fed to the outer space at the upstream end, traverses the U-shaped flow-path thus making a double pass around the combustion zone of the combustion chamber and thence to the combustion units for ignition. Improved cooling is obtained.

Abstract: The rotary compressor or expansion engine of the hypotrochoidal, two-lobe housing cavity type in which a rotor of a triangular profile is supported for planetative rotation within the housing cavity, has the meshing relationship of the timing gears angularly indexed slightly with respect to each other and from the theoretically desired position (where the apex portions of the rotor traces a path parallel to the inner surface of the housing cavity) so that the apex portions trace a path such that the apex portions are in close running-fit with the inner surface of the housing cavity in the area of highest pressure differential across the apex portions of the rotor.

Abstract: A fuel burner and combustor assembly for a gas turbine engine has a housing within the casing of the gas turbine engine which housing defines a combustion chamber and at least one fuel burner secured to one end of the housing and extending into the combustion chamber. The other end of the fuel burner is arranged to slidably engage a fuel inlet connector extending radially inwardly from the engine casing so that fuel is supplied, from a source thereof, to the fuel burner. The fuel inlet connector and fuel burner coact to anchor the housing against axial movement relative to the engine casing while allowing relative radial movement between the engine casing and the fuel burner and, at the same time, providing fuel flow to the fuel burner. For dual fuel capability, a fuel injector is provided in said fuel burner with a flexible fuel supply pipe so that the fuel injector and fuel burner form a unitary structure which moves with the fuel burner.

Abstract: A delivery valve assembly, especially for a rotary mechanism, such as a compressor, disposed within a valve chamber of a peripheral wall of a housing, which includes a stop disposed within the chamber, a valve seat formed in an end-wall disposed across an outer end of the chamber, and a movable valve element having an open and closed position. The valve element is generally rectangularly shaped in cross-section and comprises a resilient plannar inner portion disposed against the valve seat when it is closed and against the stop when opened. Springs, in the form of a pair of strips are fixedly attached at one end to the peripheral wall and extend across the outer end of the chamber, are attached at their other ends to the inner portion via a pair of side portions. These side portions are resilient and are in substantially opposed relationship.

Abstract: A motor control circuit for disconnecting the motor's power supply when the motor is stalled but maintaining it connected when it is running comprising a power loop and control loop, the former including a signal sensing means which provides an output sensing signal whose magnitude is a function of the motor's state in series with an ON, OFF switching means' input-output terminals which is responsive to the magnitude of a control signal applied to its control terminal to control its state. The control loop comprises a counter which provides a control output signal in response to a predetermined count and whose input is fed by the output of a voltage controlled oscillator whose frequency is a function of the magnitude of the output sensing signal of the signal sensing means to which it is connected. A resetting means is coupled to the reset terminal of the counter for periodically resetting the counter. The output control signal from the counter is fed to the control terminal of the switching means.

Abstract: The roll winding machine for alternately forming a web roll on two driven arbors. It has a splicing device for receiving a continuously running web from a web accumulator. The splicing device has a splicing carriage for receiving and holding the distal end portion of a leader web and including cutting means for severing the running web so that a severed end portion is provided on the wound web roll and on the continuously running web. A web clamping means is provided to grip and prevent movement of the running web and to release both the severed end portion of the web of the wound roll and the running web. The splicing carriage is operative to cut the running web and affix the severed end portion of the running web to the distal end portion of the leader web so that the running web is wound on the other driven arbor upon movement of the clamping means to release the running web and leader web.

Abstract: The shot peening apparatus for shot peening the surface of a workpiece has a gravity shot distribution subassembly which includes deflectors which utilize the kinetic energy in the falling shot to effect a substantially uniform distribution of shot into a conduit for conducting the shot at gravitational velocity to an elongated nozzle. Associated with the nozzle is a plenum communicating with the nozzle and containing a gaseous fluid under a relatively low static pressure for accelerating the shot out of said nozzle at higher than gravitational velocity for impact against a workpiece.

Abstract: A method of prestressing the working surface of pressure chambers or cylinders comprising the steps of first shot peening their working surfaces to form compressive residual stresses, and then applying fluid pressure at a predetermined magnitude to cause tensile stresses in the working surfaces. The magnitude of compressive residual stresses established on their outer working surfaces is made substantially equal to the tensile stress applied to these surfaces during the pressure phase of the process.

Abstract: In a gas turbine power plant having a pressurized fluidized bed combustor, gas turbine-air compressor subsystem and a gas clean-up subsystem interconnected for fluid flow therethrough, a pipe communicating the outlet of the compressor of the gas turbine-air compressor subsystem with the interior of the pressurized fluidized bed combustor and the gas clean-up subsystem to provide for flow of compressed air, heated by the heat of compression, therethrough. The pressurized fluidized bed combustor and gas clean-up subsystem are vented to atmosphere so that the heated compressed air flows therethrough and loses heat to the interior of those components before passing to the atmosphere.

Abstract: The valve assembly for use with high temperature and high pressure fluids has inner and outer spaced shells and a valve actuator support of inner and outer spaced members which are connected at their end portions to the inner and outer shells, respectively, to extend substantially normal to the longitudinal axis of the inner shell. A layer of resilient heat insulating material covers the outer surfaces of the inner shell and the inner actuator support member and is of a thickness to only occupy part of the spaces between the inner and outer shells and inner and outer actuator support members. The remaining portion of the space between the inner and outer shells and the space between the inner and outer members is substantially filled with a body of castable, rigid refractory material. A movable valve member is disposed in the inner shell.

Abstract: The protective control system for a gas turbine power plant having a pressurized fluidized bed combustor provides check valve means located in the passage supplying compressed air from a compressor to the combustor so as to prevent, upon loss of load or shutdown of the plant, reverse flow of high pressure, high temperature, dirty gaseous fluid from the combustor to the compressor and thereby prevent contamination, surging and damage to the compressor. Also a vent means is provided downstream of the combustion gas clean-up system to effect blowdown or depressurization of the combustor.

Abstract: The manually-actuated, rotary-impact tool for rotatively driving a fastener has a spring in a handle for storage of energy, a rotatable tool head and an inertia member surrounding the tool head and connected to the handle via driving connections. A cam associated with the handle is provided to coact with the driving connections to disengage the driving connections when the tool head rotation is resisted by a predetermined force and the handle is rotated relative to the tool head and to allow re-engagement of the driving connections in another operative condition. A lever arm is pivotally connected to the handle so as to coact with the handle and inertia member to actuate the spring for storage of energy upon resistance of the tool head to rotation and to rotate the inertia member under the force of the stored energy of the spring and effect conversion of the kinetic energy of the inertia member to impact force on the tool head upon re-engagement of the driving connections.

Abstract: An improved fluidized bed reactor of the type having dual shells spaced apart to define a gaseous fluid inlet passageway which is in communication with a source of gaseous fluid and a gaseous fluid distribution partition to form within the inner shell a reaction zone and having a heat exchange unit in the reaction zone for temperature control. The improvement comprises two manifolds which are disposed adjacent the gaseous fluid distribution partition and each in communication with the inlet passageway to receive gaseous fluid from the latter. One manifold communicates with the distribution partition passages while the other manifold communicates with the heat exchange unit.