Abstract: An independent screwed wellhead apparatus and method provide for connecting a high pressure casing nipple (34) to internal threads (36) disposed along the bore (38) of the wellhead body (12) to temporarily increase the working pressure capability of the wellhead body (12). The internal threads (36) are supported by a thick wall (44) of the wellhead body (12) disposed in a lower end (13) of the wellhead body (12). The lower end (13) of the wellhead body (12) has a higher working pressure capability than the upper end (19) of the wellhead body (12). The high pressure casing nipple (34) temporarily isolates the upper end (19) from the higher pressure.

Abstract: A pipe collar comprising first and second arcuate shell members, clamping means for drawing the shell members together around a pipe, and improved sealing means disposed in each of the shell members, for facilitating sealing engagement between the pipe collar and the pipe, and between the respective shell member sealing means.

Abstract: A headbox of a machine for producing a fiber web from a pulp suspension which travels in a flow direction through the headbox has a first chamber into which a pulp suspension is introduced, a second chamber provided downstream of the first chamber, and at least two walls provided in a region between the first and second chambers so that the pulp suspension flows between the two walls. Each of the two walls has a non-planar, contoured surface to generate turbulence in the pulp suspension flowing between the two walls. The headbox also includes means for longitudinally shifting at least one of the two walls with respect to the other wall to control the turbulence generated in the pulp suspension.

Abstract: A self-steering wheel truck for use with a railway locomotive or powered transit car in which tractive force is transferred from the axle to the frame through angled traction rods and steering beams connecting with the end axles. The steering beams interconnect the end axles so that the yaw of one axle induces an equal and opposite rotation of the other end axle. The traction rods are aligned at an angle with respect to the longitudinal axis of the truck. The angled traction rod arrangement induces a force tending to return a laterally displaced axle back to center, thereby minimizing hunting while at the same time permitting self steering axle yaw action.

Abstract: A one-piece steering wheel is formed as a unitary casting from an alloy that includes 11.5% to 14% by weight silicon, and 350 to 450 parts per million strontium. Preferably the steering wheel mold is rotated during casting at relatively high rotational speeds exerting 100 g to 250 g force on the wheel. An optimum rotational speed is disclosed. A one-piece steering wheel formed according to the invention exhibits minimal length ferro-silicon hair-like strands, and thus exhibits reduced brittleness.

Abstract: A frame hinge has a hinge arm which may be secured to a furniture frame and a hinge pot which may be set in a door leaf and is connected to the hinge arm on the frame side by way of at least one articulation pin. The hinge arm is secured to a first wedge plate which, together with a second wedge plate having a wedge surface or wedge surfaces facing in a direction opposite to a wedge surface or surfaces of the first wedge plate, is arranged between the hinge arm and the furniture frame. One of the two wedge plates is movable relative to the other by a Phillips screwdriver.

Abstract: An electric razor having a cutter foil and a cutter head, which interacts with the cutter foil and is driven by a motor which is electronically pulsed. An indicating device is provided which is connected to an operating time counter and/or to a device for detecting the load on the cutter foil and to an evaluation circuit, as a result of which increased safety can be achieved in use of the razor by timely indication of cutter foil wear.

Abstract: A steel extrusion apparatus is shown having an improved die stack with a direct cone geometry. The die stack includes a die holder with removable and replaceable die inserts. The die inserts are made from a high strength material while the die holder is made of a less expensive, traditional material. A hot metal billet is extruded through an orifice provided in the die insert of the die holder. The die stack assembly is retained as an assembled unit as the extrusion container is moved out of contact with the assembly and the butt end of the metal billet is discarded. The die stack assembly is then again located on the extrusion container as a unit to begin another extrusion cycle.

Abstract: In the initial region of the dryer section at least one of the dryer groups (23) is developed as a single-felt dryer group in which a single endless felt (F) and the web (9) travel alternately over cylinders (73) and guide suction rolls (73'). In the final region of the dryer section there is present at least one double-felt dryer group (24) in which a web (9) travels alternately over lower (74) and upper (74') cylinders. The single-felt group (23) has an automatic ropeless tail guide device (76, 79) for the threading of the so-called tail. In the double-felt dryer group (24) an automatic ropeless tail guide device (77, 78) is also present.

Abstract: An apparatus and method for sharpening skate blades operate by measuring the length of a skate blade, determining a predetermined profile corresponding to a desired radius of curvature for the blade, and coordinating the motion of a grinding wheel and the blade to grind the blade according to the predetermined profile. A grinding force is applied by the grinding wheel against the blade using a stepper motor coupled through a screw drive, thereby not allowing the grinding wheel to chatter or bounce against the blade. In addition, the blade is clamped end-to-end by a clamping assembly that also determines the length of the blade via the position of the clamp.

Abstract: A support rail of a drawer pull-out guide is attachable to an article of frame furniture having a frame front with vertical and horizontal frame members. The support rail is fastened at a front end thereof to a vertical frame member and has at such front end a clamping device which is formed into a U-shape to embrace the vertical frame member.

Abstract: Special alloys of the kind responding to the formula of 95% Sn 5% Sb or 52% Sn 45% Pb 3% Sb having a melting point greater than 183.degree. C. are used in one of the preferred embodiments of the invention within this application as a first improvement in the welding of printed circuit boards. These alloys improve the quality of welding, as well as its influence on the long-term running of a service box, to the same as the life span of a car.

Abstract: A sunvisor for automobiles comprises a sunvisor body, a metal reinforcing rod which reinforces the sunvisor body and has two U-shaped ends, a retaining spring, a sunvisor hinge having a vertical arm attachable to a base member fitted to a structure of a vehicle and a horizontal arm snugly attachable to the retaining spring housed in the linking body so that the sunvisor may be rotated about a horizontal arm of the supporting pivot, the linking body being formed as an elongated parallelopipedon with two adjoining hollow longitudinal sections including a front section and a rear section separated from one another by a wall, the front section housing the retaining spring and being open at its free end and also having means for snugly receiving both ends of the metal ring reinforcing rod so that the ends are aligned longitudinally and left facing each other, means for fixing a position of the retaining spring, and means for fixing a position of one of the L-shaped ends of the metal reinforcing rod, the rear secti

Abstract: The device for inserting and removing rollers in single-row roller skates, in which the axles are inserted through aligned openings in a frame and are mounted therein, includes an axle having at one end a circumferential groove or engagement recess. Into the circumferential groove or engagement recess extends a removable locking member in the form of a pin or a hook, wherein the axle is secured in a given rotary position by adjusting a bolt lever (9). The rollers (15) of the roller skate are rotatably mounted on the said axle.

Abstract: A gas line safety evacuation apparatus and method wherein earthquakes or other hazardous disruptive events are monitored and detected. Upon detection of an earthquake or like event, gas or other fluid lines are evacuated by an evacuation pump, and the evacuated gas is stored in a storage tank for future use. Control valves are activated upon detection of the earthquake to prevent additional gas or fluid from entering the lines.

Abstract: A wall structure for a wall bounding a combustion chamber of a gas turbine engine is disclosed having a first wall with an inner surface facing towards the interior of the combustion chamber and an outer surface facing away from the interior of the combustion chamber such that the inner surface forms a boundary of the combustion chamber and the outer surface has a surface roughness to prevent the formation of a fluid flow cooling layer which would cool the outer surface. The invention also has a second wall spaced from the outer surface of the first wall in a direction away from the interior of the combustion chamber so as to define a cooling fluid circulatory space between the first and second walls. A plurality of first perforations extend through the first wall in communication with the cooling fluid circulatory space to enable passage of cooling fluid from the space through the first perforations to form a cooling fluid film on the inner surface of the first wall.

Abstract: An additive to reduce fluid loss from drilling fluids is comprised of comminuted products from the rice plant or blends of other comminuted plant materials with the rice products. Polymers to reduce fluid loss even lower and friction-reducing materials may be added to the plant materials.

Abstract: A nozzle of a multilayer headbox wherein the headbox includes a nozzle for distributing the stock suspension on a wire. The nozzle is subdivided by at least one machine-wide fin, the fin forming with the nozzle at least two machine-wide nozzle ducts. At least the mean value of the clearance of at least one nozzle duct diminishes steadily in the flow direction, the percentage decrease of the clearance in the fluidically essential area of the nozzle being at least twice as large as in the starting area of the nozzle. The fin has downstream end area of decreasing thickness immediately preceded by an area of increasing thickness.

Abstract: An apparatus for inserting wire into an intermittently fed insulating body (I) of a structural element (B), with a wire supply device (6, 7) disposed on a pivotable base plate (1) and with a device (15, 16, 21) for forming and shaping a wire receiving duct, wherein, in the feed direction of the structural element, the forming and shaping device is disposed in front of the wire supply device as well as at the same angle as it and on the same side of the insulating body and is fixedly connected with the wire supply device, can be moved together with it in the direction toward the insulating body of the structural element and away from it and is pivotable together with it.

Abstract: Compositions for producing foamed products which include filler and/or pigment additives and blowing agents which enhance the strength of weld lines which are produced when the compositions are molded. The products produced from the compositions have weld .[.line.]. .Iadd.lines .Iaddend.that demonstrate superior strengths as compared to similar foamed products which do not utilize the particular blowing agents.