Abstract: A plate catalyst body for denitration wherein a catalytic substance is supported on a porous metallic plate body having three dimensional network, which has an excellent retention of catalyst and an easy producibility, the porous metallic plate body being able to be uneven or have protrusions.

Abstract: An engine timing apparatus comprises an ultrasonic transducer 8 which directs a pulsed ultrasonic beam into a cylinder and converts the reflected ultrasonic signals into electrical signals. A sample/hold circuit 67 samples this signal at a time after each pulse when signal reflected by a piston ring passing through the beam are expected. A microcomputer 65 detects changes in the level of the sampled signal caused by the piston rings as the crankshaft rotates, and receives signals from a transducer 71 indicating the crankshaft position to allow top dead center position to be found. The microcomputer receives signals from a microphone 51 directed at a fuel injector indicative of the onset of ignition and calculates the timing angle of the engine. The apparatus also calculates engine speed and detects piston slap.

Abstract: A miniature surgical clip made of a single continuous length of spring wire for clamping blood vessels in brain surgery and the like. The clip includes a pair of operating members arranged at an acute angle and connected together at a common apex. The operating members are symmetrically formed and have inwardly bent legs which extend mutually inward in overlapping relation to form spaced parallel portions defining between them a lateral guideway. Each of the inwardly bent legs terminates in a 270.degree. exit loop having straight exiting portions which are captive in, and which extend through, the guideway parallel to one another to form cooperating jaws which are straight and parallel. The operating members are outwardly sprung with respect to one another for biasing the jaws resiliently into clamping engagement.

Abstract: A syncrhonization arrangement is disclosed for synchronizing a receiver with a transmitter whose frequency is hopping through a sequence of predetermined frequencies arranged pseudo-randomly. The transmitter includes a time base circuit in the form of a string of dividers operated from a stable oscillator. One divider produces (in this example) a 28 bit synchronization signal which changes state once every sixty four hop frequencies. The 28 bits control a keystream generator which produces a pseudo-random output sequence controlling the transmitting frequencies. This 28 bit signal is formatted by repeating it several times successively, with its bits partially re-circulated to a predetermined extent each time, masking bits are added, and the result transmitted to the receiver on one of the hop frequencies.

Abstract: The present invention improves the construction of a cooling ventilation flue for the coil end portion of the stator of a rotary electric machine so as to enhance the cooling effect. That is, the invention provides a cooling device for a rotary electric machine characterized by comprising a ventilation guide which is disposed at the coil end portion of the stator of the rotary electric machine, which divides the stator coil end portion in an axial direction of the rotor of the rotary electric machine into a first ventilating section for advancing cooling air onto an inner peripheral side of the coil end portion and a second ventilating section for advancing the cooling air, having passed through the first ventilating section, onto an outer peripheral side of the coil end portion and which guides the cooling air, having passed through the second ventilating section, into a space surrounding the stator.

Abstract: A gripping mechanism having jaws for picking up and releasing parts is carried on an outwardly and inwardly swinging parallel linkage which, in turn, is mounted on an upwardly and downwardly swinging parallel linkage. A spring-loaded snubber takes out play in the linkages to insure precise positioning of the gripping mechanism at the ends of its outward and inward strokes. The jaws of the gripping mechanism are open and closed by a compactly mounted fluid-operated actuator, are connected to one another by an equalizing link which effects automatic self-centering of the jaws, are adapted to rotate the part as the part is transferred, and are adapted to be opened and closed with either a swinging motion or a straight line motion.

Abstract: A foam dispenser for converting a plurality of foam components into an expanded foam which can be flushed with a cleaning solution after the foam is discharged is distinguished by the use of a rotary valve member corresponding to each foam component introduced into the dispenser to constitute the expanded foam. Each rotary valve member has a single passageway and is mounted for movement between positions in which (a) the passageway communicates with the tube carrying the foam component and (b) the passageway communicates with a tube carrying the cleaning solution, thus permitting cleaning of the dispenser at all points downstream of where the foam components enter the valve. The distance between where the foam component is introduced into the dispenser and the point where the foam component enters the valve is so short that no significant amounts of buildup of the foam component can occur.

Abstract: A security installation has four, for example, normally-closed sensor switches which open in the presence of an intruder. Each switch is in series with a respective resistor and these series combinations are connected in parallel across a pair of bus lines which connect to a central monitoring point. There, normally open test switches are connected across the bus lines in series with respective resistors which have values corresponding to the resistors of the sensor switches. Constant current is applied to the bus lines, and a voltage monitor senses the rise in voltage when one of the sensors opens, and this initiates a scanning unit which closes the test switches in sequence. When the test switch corresponding to the opened sensor is closed, the line voltage reverts to the predetermined value, and the closed test switch identifies the operated sensor.

Abstract: A rubber seal includes a bush (10) of natural rubber and end cups (12) each incorporating a multiplicity of synthetic fabric layers. The end cups (12) are rubberized and are fully integrally moulded into the main portion of the bush so that the final hollow cylindrical member has plane end faces and a smooth cylindrical peripheral surface a part of which is defined by an outer one of the layers of fabric.

Abstract: A valve seat insert surrounds an inlet valve of a reciprocating internal combustion engine and provides a seat for a movable valve. The flow characteristics of a charge of air or an air/fuel mixture leaving the inlet valve are determined at least in part by the form of the valve seat insert and these characteristics can affect the performance of the internal combustion engine. The improved valve seat insert defines an aperture through which the charge passes. The aperture has an area to one side of a plane including the axis of an annular valve engaging surface of the insert which is greater than the area of the aperture to the other side of the plane. The smaller of the areas is bounded by one or more curved sections. This insert can be used in an internal combustion engine or deflect a charge passing through the aperture and to give the charge a velocity profile which, for example, improves starting and reduces fuel consumption.

Abstract: An apparatus for selecting closures with a cylindrical raised edge out of a supply of closures present in one plane with the back to the one or the other side. The apparatus has a hopper that in cross section is rectangular with mutually spaced side walls between which the closures fit, side edges and a lower sloping edge having an opening below which a first worm extends parallel to the lower edge. The first worm has a curved profile in which said raised edge of the closure fits. A side wall adjoining the opening of the lower wall has an opening in which a cylindrical shaft is present with its outer face tangential to the plane of the side wall and extends parallel to and is driven synchronously by the first worm in the same direction.

Abstract: A filter assembly comprising a filter retainer apparatus, an air filter frame and having a removable pleated filter media. The pleated filter element is secured within the frame by the retainer apparatus which comprises an expandible retainer having elongated flanges disposed on opposite ends. One flange is secured to a rod which slidably fits within a sleeve to which the other flange is attached. Resilient apparatus, preferably an elongated helical spring positioned between the sleeve and the rod, keeps the flanges in spaced relationship. One of the flanges engages one end fold in the filter element and forces it into contact with the frame. The rod is then forced into the sleeve compressing the spring and the other flange engages the other end fold of the filter element, forcing the other end fold into contact with the frame. The spring forces the rod and the sleeve apart so that the flanges securely hold the filter element in the frame.

Abstract: The invention comprises a quick disconnect nozzle including a nozzle body and a nozzle tip, wherein the nozzle body may be connected to a source of fluid and the nozzle tip is separable from the body by a single twist type action, yet the nozzle may be securely locked in the body by an interlocking engagement between the nozzle and body that is engaged and disengaged by relative twisting of the two parts. The locking action is obtained by the engagement of cooperative elements on the two parts including oppositely disposed undercut shoulders on the nozzle body and a pair of rounded projections on the nozzle tip which are engaged under the opposing shoulders by the relative twisting action. The interlocked relationship is maintained by a combination sealing member and pressure device that effectively seals the connection between the nozzle body and tip and exerts pressure therebetween to secure the locked connection.

Abstract: A weight-coated pipe has an innermost anti-corrosion layer, a helically-wound covering of a cementitious sheeting having a reinforcement of organic fibrillated film network arranged as a plurality of superposed layers. This covering is applied in a post-cracked condition so that constituent parts of the next layer of concrete penetrate the micro-cracks and form a good bond. An outer layer of helically-wound sheeting similar to the first-mentioned covering serves to protect the weight-coating of concrete from impact damage.

Abstract: An automatic control method and apparatus for adjusting the register of printing plates in a multi-color printing press before test sheets or proofs are printed. Register marks are copied on the printing plates when the plates are manufactured. Photoelectric scanners sense the register marks and determine the relative positions of the printing plates without the use of paper. The positions of the printing plates are compared and the plate cylinders are adjusted so that the printing plates of all the plate cylinders are in register with one another. Preferably the relative positions are referenced to registered zero positions in the middle of the adjustment range for each plate cylinder, and the position of the printing plate having the least deviation from the corresponding zero position is chosen as a reference position to which the positions of the other printing plates are compared.

Abstract: A burner block for an industrial furnace is resiliently seated in a hollow annular member, the latter being made of a metal such as stainless steel and the burner block being made of a refractory material. Because of the resilient mounting, the burner block is seated firmly in the annular member even though these two parts have different rates of thermal expansion. In addition, a cooling fluid is circulated within the interior of the annular member to cool the latter so that the furnace may operate at a temperature which is well above the temperature at which the annular member loses its structural integrity. All of this permits the burner block assembly to be mounted effectively on the metal outer shell of the furnace without relying upon the refractory lining of the furnace for support.

Abstract: An electronically controlled coin tester which distinguishes between valid and invalid coins by subjecting both the token to be tested (test coin) and a fixed reference coin (sample coin) to similar magnetic fields and evaluating the quality of any null signals created by their combined output. A selectively shiftable coin holder is provided which serves to allow replacement of the sample coin as well as to provide a guiding ramp for the test coin which can be selectively set at various inclines dependant upon the size of the coins desired to be tested. The present device may optionally include a pendulum damper which will slow the movement of the test coin as its travels along the guiding ramp, and/or an antistringing device which prevents the removal of a coin from the coin box after acceptance.

Abstract: An auxiliary feed hopper for permitting the trimming, in a saddle binder, of perfect bound books which includes a horizontal base plate having a pair of longitudinally extending slots. The base plate is supported above the delivery bed with the slots in register with the lug slots normally provided in the delivery bed. A rear stock plate is secured to the base plate, and supporting brackets at the side edges of the base plate are clamped in positions equally from the stock plate. A front stock guide is provided including a bridge spaced above the base plate, the bridge being supported at its ends upon the brackets. Side stock guides are spaced parallel to one another on the base plate, the guides all being adjustably movable on the base plate for receiving, between them, a stack of perfect bound books. A barrier adjustably secured to the bridge, and projecting downwardly therefrom, forms a gap to permit the lowermost book in the stack to feed under the bridge while holding back the remainder of the stack.

Abstract: A combined pump and tap assembly for a beverage container includes a cylinder for a hand pump and a gas tube projecting downwardly from the bottom wall of the cylinder and communicating with the interior of the latter. A hollow boss rigid with the bottom wall provides a connection for a downwardly projecting draw tube and a fitting for a dispensing hose is rigid with the boss and communicates with the draw tube through the boss. The cylinder, its bottom wall, the boss and the fitting are made as an integral unitary part so as to effectively preclude the user from disabling the hand pump and connecting the gas tube to another pressure source which may be unregulated and cause the container to explode.

Abstract: The device includes an assembly tray for holding assembled pieces of a jigsaw puzzle and includes two storage trays for holding unassembled puzzle pieces. The storage trays are adapted to be placed in side-by-side relation in the assembly tray and hold the assembled puzzle pieces in assembled relation when the device is picked up and carried. Filler blocks are adapted to be placed in the storage trays to hold the unassembled pieces therein in position when the device is picked up and carried. A releasable cover holds the filler blocks, the storage trays and the assembly tray together as a compact unit.