Abstract: A sealed type motor-operated flow control valve comprises a valve body including two passages and a valve port connecting the two passages and formed with a valve seat, a valve member provided on the body so as to be movable between a closed position and an open position, a rotor having a rotating shaft one end of which is coupled to that end portion of the valve member more distant from the valve seat, the rotor being supported by the body so as to be rotatable in the circumferential direction of the shaft, a casing including a first half member hermetically coupled to the body and a second half member adjoining the first half member in a direction along the shaft of the rotor and hermetically coupled to the first half member, the respective inner surfaces of the first and second half members defining a sealed space to contain the rotor therein, a stator disposed in the casing and fixed to the first half member, a bracket disposed in the casing and fixed to the first half member, a bearing supported by the b

Abstract: A self-securing ball-and-socket joint which has a ball head integrally formed on a rod, an outer structural part having a bore that pivotably receives the ball head and a radially elastic CIRCLIP brand retaining ring as well as a separate auxiliary assembly tool for the retaining ring. In the outer structural part beside the center of the ball head, there is a circumferential groove having a support face for the retaining ring. When the ball-and-socket joint is assembled, the retaining ring is first inserted into the circumferential groove. Then the auxiliary assembly tool is inserted into the bore. At its initial end the auxiliary assembly tool is embodied in the manner of a centering and expansion tool, so that it aligns the retaining ring with respect to the circumferential groove and finally forces it into this groove. Upon further displacement of the auxiliary assembly tool, the retaining ring snaps home into a detent notch provided on the circumference of the auxiliary assembly tool.

Abstract: A method and apparatus for making engine cylinders comprising the steps of punching cylindrical tubes with openings from the inside to the outside and then surrounding the thus formed tubes with a different body of material. In accordance with the method, the punching apparatus includes a mandrel that slidably supports the dies and a backup die that includes a slug ejecting punch which serves the dual function of ejecting the slugs from the backup die and also retracting the punches. In one embodiment of the invention, the port openings are formed smaller than the final configuration and the surrounding material is cast in place and extends into the liner opening for interlocking the surrounding material to the liner.

Abstract: A method is described for indexing a polyfoam block in which a metal field shaping block is cast to both the cutting tray of a hot wire cutting system and the treatment tray of a radiation therapy treatment machine. The cast metal field shaping block is automatically correctly oriented for treatment. A cooling tray for cooling the casting is also described.

Abstract: An apparatus for producing various heat exchangers is disclosed in which a plurality of heat exchangers disposed side by side are formed at once. A series of manufacturing stations for working heat exchanger components such as fins and tubes and for opening the tubes are arranged in an endless manner to thereby automatically carry out the production steps with a high productivity while meeting various requirements of the specifications of the heat exchangers with a high flexibility.

Abstract: Prefabricated insulated pipeline section having a one-piece cast cured and dried insulative liner formed of lightweight aggregate in a foamed portland cement paste binder bonded to the inner surface of a tubular outer casing. The liner composition may be cast in place between the liner and the pipe, and wet cured at elevated temperature. Bonding between the pipe and the liner composition is avoided by employing a cement cure retarder on the outer surface of the pipe or by mechanically debonding the pipe from the liner during curing. After curing, the pipe is withdrawn to expose the inner surface of the liner to permit rapid drying at elevated temperature. The prefabricated insulated sections permit simplified pipeline construction at reduced cost as compared with traditional methods of applying half shells of insulation to the pipeline on site.

Abstract: A method of repairing under water a boiling water reactor-fuel assembly having a fuel assembly channel and an upper grid plate by means of a channel stripping machine, disassembling the upper grid plate, determining a damaged fuel rod and exchanging the damaged fuel rod for another fuel rod by means of a fuel rod exchanging device, which includes, after stripping off the fuel assembly channel and disassembling the upper grid plate at the location thereof in the channel stripping machine, placing on the fuel assembly a guide box with which the fuel rods of the fuel assembly are centered, then placing thereon an indicator plate and determining the varying growth of the fuel rods, and replacing the indicator plate by a centering plate to which the fuel rod-exchanging device is coupled and a device for carrying out the method.

Abstract: Apparatus (16) for gripping the inner surface of a plug (14) so that it can be removed from a tube (12). The apparatus includes a shaft (18) having an enlarged frustoconical head (20) with a collar member (24) surrounding the shaft. The collar has a plurality of flexible fingers (22) extending up therefrom, which are forced radially outwardly into contact with the inner wall of the plug when the head is moved longitudinally outwardly from the plug. Each finger has an end portion which is tapered and forms first (10 degrees) and second (5 degrees) angles on its inner (32) and outer (30) surfaces, respectively; and the frustoconical surface (34) of the enlarged head forms a third angle (15 degrees), with the sum of the first and second angles being equal to the third angle. The end portions of the fingers are thus moved radially outwardly, such that their outer surface lies parallel with the inner surface of the plug and thus, the plug is gripped over a large surface area by the gripping mechanism.

Abstract: A method and apparatus for assembling a front guard panel having two inwardly projecting shafts on rearwardly facing end pieces into two corresponding holes of a half case. The farther hole is open. The guard panel is placed on table which moves linearly with respect to the half case and is inclined with respect to the front of the half case. The linear movement places the near shaft adjacent the near hole. Then the guard panel is rotated about an axis near the near hole so as to insert the near shaft into the near hole and to move the far shaft into the far hole.

Abstract: A scroll type fluid machine comprising a pair of mutually engaged scroll members each including a side plate and a spiral lap uprightly disposed on an inside surface of the side plate; when the scroll members are relatively revolved in solar motion relationship, a fluid volume in sealed chambers defined by the pair of engaged scroll members being varied, so that a pressure of the fluid in the sealed chambers is thereby varied in order to discharge a gas therefrom, characterized by constituting so that stress may not concentrate at stress concentration portions of the scroll members, i.e.

Abstract: An ejector device consists of a number of ejector units each of which includes a suction chamber. The individual units are positioned in a common housing. For making the ejector the housing is produced and the suction chambers are produced therein. These latter are four sided recesses. The holes are made in the partitions between the chambers and in the walls of the housing and nozzles are fixed in these holes. In a further step a flexible cover is placed on the open sides of the chambers. There are openings in that cover. It is covered by a rigid plate with an opening and a second flexible cover is placed on the plate. Finally a second housing is secured to the assembly. Inlet and outlet ports are provided in the second housing.

Abstract: A ventilating and aspirating assembly comprising an aspirating catheter tube internally disposed within and coextensive with a surrounding flexible collapsible sterility preserving film envelope, a connector by which ventilating air is involuntarily delivered to and exhausted from the lungs of a medical patient, said connector comprising structure which accommodates the manual insertion of the catheter tube into and manual removal from the trachea/bronchi patient through the connector. This facilitates aspiration of undesired respiratory fluids.

Abstract: An improved one-piece metal jacket for insulated pipe elbows, bends and/or turns having a central metal spine spaced apart along which a plurality of opposed pairs of metal fingers extend sufficiently to overlap, longitudinally and traversely forming a weatherproof covering and fasteners to hold the fingers in place.

Abstract: The present invention relates to a method for producing spinning nozzle plates having funnel-shaped preliminary channels in flow communication with nozzle capillaries. Two embodiments of the method are provided which use photolithographic and electrodeposition techniques. Common to both embodiments of the method is the use of a metal plate provided with funnel-shaped preliminary channels as a self-aligning irradiation mask for irradiating a photoresist layer provided on the metal plate. Nozzle capillaries subsequently defined either in an electrodeposited layer according to a first embodiment of the invention or in electrodeposited tubular projections according to a second embodiment of the invention, have an offset-free, continuous transition between themselves and the preliminary channels. Photolithographic and electrodeposition techniques may also be used to define the funnel-shaped preliminary channels in the metal plates.

Abstract: A bearing extractor having a support element in which a rod is positioned such that the rod is capable of expanding, within a bearing, the prongs of a bearing grasping assembly. Once the prongs of the bearing grasping assembly grasp the bearing, the bearing is raised by the rod until the case surrounding the bearing engages the support element. Thereafter continued raising of the rod removes the bearing from its case.

Abstract: A method for making a cylinder head cast from an aluminum alloy intended for use in internal combustion engines, and more particularly, a method for improving a portion of the cylinder head by a local heat treatment, comprises casting a cylinder head body from an aluminum alloy, directing a high density energy, such as TIG arc, laser, plasma arc or electron beam, to the surface of at least one region of the cylinder head body where a high strength is required, thereby rapidly remelting a surface layer in that region, and subsequently removing the irradiating energy and allowing the molten aluminum alloy of the surface layer to be rapidly cooled and solidified through heat transfer therefrom to the underlying matrix thereby forming a remelted, solidified layer.

Abstract: A method for remotely removing and replacing defective tube ends of heat exchanger tubes located adjacent a tubesheet. In the method, a rotary cutting tool is inserted into each defective tube and the tube end portion is cut at a location near the tubesheet, a weld joint between the tube and tubesheet is removed, and the defective tube is then withdrawn through the tubesheet opening. Next, the resulting exposed end of the existing tube is remotely machined using a special rotary cutting tool, then a new replacement tube is inserted through the tubesheet opening and positioned in axial alignment and interfitting engagement with the end of the existing tube, after which the rear end of the new tube is expanded firmly against the tubesheet opening. The front or inner end of the replacement tube is then expanded firmly against the inner surface of the existing tube end, in preparation for welding these tubes together.

Abstract: A torque converter apparatus having a sprag-type stator is improved by grinding the fluid directing vanes to have a substantially flat surface and by replacing the one-way rotating sprag with a non-rotating solid sprag billet.

Abstract: A cam shaft made from lobes having irregularly shaped apertures spaced along the longitudinal axis of a hollow tubular shaft. The method of making the cam shaft includes the steps of: inserting a hollow tubular shaft through the apertures of a plurality of the lobes axially and radially with respect to the longitudinal axis of the shaft. The method is characterized by flaring at least a first end of the shaft and backing the exterior of the first flared end to prevent axial radial movement thereof. In addition, a plug means is inserted into fluid sealing engagement with the interior of the first flared end to sandwich the flared end against the backing of the exterior thereof. The hollow shaft is filled with liquid and the opposite ends of the shaft are clamped between the plug means at the first flared end and a fluid sealing means at the opposite end of the hollow shaft. Hydraulic force is then applied to the interior of the shaft to expand the hollow shaft into engagment with the apertures of the lobes.

Abstract: A method for making ball and socket joints with a slip liner of a friction reducing material consisting of the steps of inserting and centering a ring tool in the bore of the outer ring, filling the space between the outer ring and the ring tool with a friction reducing material; separating the ends of the outer ring and simultaneously breaking the slip liner at a predetermined point, removing the ring tool, and inserting the inner ring of the ball and socket joint.