Abstract: A drain pipe sealing device wherein a sealing head is supported at the end of a support arm whereby the sealing head can be orientated so as to facilitate entry of the sealing head by way of a vertical riser and then re-orientated to assist in sealing.

Abstract: An aluminum alloy consising essentially of 0.65 to 0.75% by weight of magnesium and 0.50 to 0.60% by weight of silicon or 0.47 to 0.57% by weight of magnesium and 0.75 to 0.85% by weight of silicon, 0.15% to 0.25% by weight of iron, less than 0.05% of an impurity selected from the group consisting of copper, manganese, zinc, chromium, and titanium and the balance aluminum, the aluminum alloy being subjected to aging treatment at a temperature below 200.degree. C for 20 to 50 minutes to obtain 0.2% proof stress larger than 11 kg/mm.sup.2, ultimate tensile strength larger than 20 kg/mm.sup.2 and elongation more than 8%. Aluminum alloy shapes are formed of the above aluminum alloy by extrusion forming of the aluminum alloy to obtain an extrusion, coating a film on the surface of the extrusion with a water-soluble paint after forming thereon a ground film, heating the extrusion at a temperature below 200.degree.

Abstract: Implantation of particles and especially ions is carried out by directing a particle beam onto a target and sweeping the beam in two directions at right angles. The target is subjected to a double movement of rotation about two axes which are substantially parallel to the direction of the particle beam. All the points of the target thus describe an epicycloid and are subjected to implantation by the particle beam.

Abstract: A reversible mechanical assembly is remote-controlled in displacements and in efforts by means of a device comprising a motion detector which delivers a pulse each time a driving shaft associated with a motor rotates by one step, the sign of the pulses being dependent on the direction of rotation of the motor. One input of a summing device is driven by the pulses delivered by the detector and the other input is driven by pulses delivered by an assembly for controlling the motor. The output signal of the summing device is fed back into the control assembly so as to constitute an effort return and also fed to the input of an amplifying circuit for controlling the torque produced by the motor.

Abstract: A dual temperature thermostat is disclosed in which two bimetal snap discs are connected to separately operate two switch mechanisms. The snap discs are retained in separate, generally concentric disc seats formed in a retainer cup. The body is provided with first abutment surfaces to maintain the inner disc in its seat and a plurality of symmetrically positioned projections which extend through openings in the inner disc and provide abutments which engage the outer disc and maintain it in its seat. The abutments and the seats are proportioned so that the two discs cannot contact each other during their operation.

Abstract: An emergency cooling device for a nuclear reactor in which the core is constituted by N independent modules and a heat-transporting fluid is circulated within each module M.sub.i under the action of a pump P.sub.i essentially comprises a manifold C and N pipes S.sub.i (i = 1, 2 . . . N), each pipe S.sub.i being connected between the manifold C and a pipe K.sub.i which provides a connection between the pump P.sub.i and the module M.sub.i.

Abstract: A crimping machine for radially inwardly crimping an end fitting onto a hose by means of a contractible die assembly includes a reciprocable ram. A pusher assembly is mounted on the ram for transmitting ram force to the die assembly. The pusher assembly includes first and second semicircular pusher members, and the pusher members are mounted for axial movement with the ram and for lateral movement relative to the ram. The die assembly includes two disjuncted die sections, one of which is carried on the end of each pusher member by connecting means which permits relative radial movement between the die section and the pusher member. A cam follower on each pusher member follows a cam surface on the machine for moving the pushers laterally outwardly when the die sections are pulled from the socket by the pushers during retraction of the ram.

Abstract: A hard rock trench cutting machine includes a main body assembly, a cutter wheel assembly, and a longitudinal thrust assembly. The main body assembly includes two longitudinally extending cantilever support booms each having a forward portion and a rearward portion. The rearward portions of the support booms are connected to four side wall support feet which move laterally relative to the support booms between a retracted position and an extended position. The cutter wheel assembly includes a cutter wheel frame slidably disposed on the forward portion of the support booms. A cutter wheel drum carrying a plurality of roller cutters is rotatably carried by the cutter wheel frame for rotation about an axis. The longitudinal thrust assembly extends between the main body assembly and the cutter wheel assembly for pushing the roller cutters against the trench end face.

Abstract: A crimping machine for radially inwardly crimping an end fitting onto a hose by means of a contractible die assembly includes a reciprocable ram. A pusher assembly is mounted on the ram for transmitting ram force to the die assembly. The pusher assembly includes first and second semicircular pusher members, and each pusher member is mounted for axial movement with the ram and for lateral swinging movement relative to the ram about a pivot axis which is parallel to the longitudinal axis. The die assembly includes two disjuncted die sections, one of which is carried on the end of each pusher member by an attachment arm which is deflectable to permit radial movement of the die sections relative to the pusher members. The attachment arm is provided with manually deflectable tabs which secure the die sections in place during crimping and which are deflectable to permit removal and replacement of the die sections.

Abstract: A thread rolling die and a method of thread rolling is disclosed for producing the annular rib on a threaded fastener suitable for retaining washers, clips or the like. The ends of the threads adjacent to such rib blend to the root diameter of the thread. The annular rib is produced by axially displacing workpiece material from the adjacent end of the thread. The die for rolling the thread is formed with thread forming grooves which extend to a base line spaced from the parallel to the lateral side of the die. At the base line the thread forming grooves fade to zero depth. Positioned between the base line and the lateral side of the die is a rib of increasing width which functions to displace material axially into the required rib.

Abstract: Disclosed is a solid diffusion source for the phosphorus doping of semiconductors, which comprises a substance composed of at least one kind of compound R.sub.2 O.sub.3 selected from the group consisting of Y.sub.2 O.sub.3, La.sub.2 O.sub.3 and Ce.sub.2 O.sub.3 and P.sub.2 O.sub.5 and containing mainly a compound with a chemical formula R.sub.2 O.sub.3.5P.sub.2 O.sub.5.

Abstract: This invention relates to a thermogenic swimming-pool type nuclear reactor adapted to produce hot water for use in a heating installation.The reactor comprises a generally cylindrical enclosure open at the top and filled with a cooling liquid. The enclosure is divided by a horizontal partition and the bottom zone below the partition contains the reactor core and at least one heat exchanger and at least one venturi. The cooling liquid is circulated between the outlet and inlet of the core through the heat exchanger and the venturi. At least one conduit extends through the partition so that its top end discharges into the upper zone and its bottom end discharges into an aperture formed in the wall of the venturi at its neck.

Abstract: A fully automatic system is disclosed for determining the seven blood parameters, red blood counts (RBC), hematocrit (HCT), white blood counts (WBC), mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV) and mean corpuscular hemoglobin concentration (MCHC). The blood sample collected is divided into two solutions, one for use in red blood counts and subjected to the colorimetric analysis for HGB determination and the other for use in white cell counts. A portion of the RBC solution is subjected to the double blood dilution and it enters a red cell counting portion. The peak value of electrical pulses supplied by said counting portion is indicative of the hematocrit. These data are used by preset arithmetic circuits to determine MCH, MCV and MCHC. White blood corpuscles are counted by a counting means of the same structure as that of the red cell counting portion.

Abstract: Improvements in and relating to aircraft structures. The aircraft comprises a narrow delta planform fuselage with two small-span shoulder type wings in tandem and cascade. The shape of the fuselage and its relationship with the wings result in an aircraft capable of exploiting more efficiently, than conventional aircrafts, the potential energy carried by the aircraft and to comply more accurately with the first degree of universal flexibility as does the atmospheric environment than do conventional aircrafts.

Abstract: A panel constructed cabinet for refrigerators, freezers or the like is disclosed along with a method of manufacture and an apparatus for manufacture. The cabinet includes an inner liner formed of panels of thermoplastic material having mating edge connections. The connections are formed by heating the plastic sheet along spaced and parallel lines adjacent to the edges thereof, to provide fold lines permitting the formation of channels proportioned to receive mating tongues from adjacent panels. Along some edges of the thermoplastic panels the channels are formed to extend laterally, with respect to the panel, and along other edges the channels are formed substantially parallel to the panels. The outer casing includes a combination of metallic panels along the sides and foil laminated panels along the top, back and bottom of the cabinet. Foamed insulation rigidifies the panels and provides the necessary insulation therebetween.

Abstract: A container comprising a fiber tube and a plastic end closure is shipped and displayed at the point of purchase in a display rack. A first end of the paper fiber tube is deformed radially inwardly to close the first end of the tube. The closed first end of the tube is provided with a longitudinally recessed center portion. The plastic end closure is disposed on the second end of the tube. The plastic end closure is structured and arranged so that it provides a smooth top surface having a recessed center portion. The display rack includes a plurality of cavities, and each cavity includes a resilient finger projecting into the cavity at each of its ends. The resilient fingers project into the recessed first end of the fiber tube and into the recessed center portion of the end closure on the second end of the tube to removably secure the container in the display rack.

Abstract: A method of manufacturing sealed thermostats or the like is disclosed in which male and female members are assembled with an interference fit to produce a seal which is maintained through a predetermined operating temperature range. The minimum interference during assembly is selected so that such minimum interference is greater than the difference in the temperature during assembly and the most adverse seal temperature to be encountered within the temperature range, times the difference in coefficients of thermal expansion and contraction between the members times the linear dimension of the seal. In addition, the two members are selected so that the maximum total elastic deformation is greater than the difference in coefficient of thermal expansion and contraction times the difference between the maximum and minimum temperatures within the temperature range times the linear dimension.

Abstract: A railroad car dumping apparatus is disclosed which has a weighing device for weighing the contents of the car prior to dumping. The apparatus includes an invertible cradle and a weighing table fixed to the cradle and being invertible therewith. A platen is mounted on the table and is laterally shiftable along the table. The weighing device includes load cells fixed to the cradle and bearing against the table so that the load cells are compressively engaged by the table when the cradle is in its upright position and are under zero tension when the cradle is inverted.

Abstract: Disclosed is a method for the recovery of useful metallic components such as lead, tin, copper, etc. from a closely layered member having its surface layer of copper or a copper or aluminum alloy closely layered on a back metal of steel or the like. The closely layered member is immersed in molten aluminum to dissolve therein the surface layer to separate it from the back metal, by which lead and/or tin is gathered under a molten aluminum or aluminum-copper layer and separated therefrom.

Abstract: 2-[.alpha.-(2,6-Dichlorophenoxy)-ethyl]-.DELTA..sup.2 -imidazoline, and physiologically acceptable acid addition salts thereof, which provide vasoactivity and hypotensive activity.