Abstract: Chenodeoxycholic acid melting in the range of 168.degree.-171.degree. C. and of such high purity as to be suitable for human therapeutic use is obtained by crystallization from acetonitrile.

Abstract: A Yankee paper machine, particularly for the production of MG (machine glazed) paper and creped tissue, in which the formed paper web is sandwiched between a Yankee felt and a lower felt, pressed in a first nip between a suction roll and a dewatering roll, carried on the Yankee felt around the suction roll and pressed in a second nip between the suction roll and a Yankee cylinder. The web is adhered to the Yankee cylinder and the Yankee felt is detached from the web, passed around separate rolls and returned to the web on the Yankee cylinder in a third nip which in which adherance of the web to the Yankee cylinder is assured.

Abstract: Micropattern devices, such as electronic microcircuits, are produced by establishing on a substrate base a film of resist material, such as a polymeric film, containing dispersed therethrough a substantial proportion of an enzyme and then producing a pattern of a metal by reactions depending upon presence of the enzyme.

Abstract: Microcapsules having controlled structural integrity are produced by a process which involves admixing a thermosetting condensation polymer-containing oily solution and a polymer-containing aqueous solution and causing a chemical reaction between the polymers at the resulting oil/water interface. The so-formed microcapsules have excellent water resistance and may be employed in the formation of opacifying agents in coatings and particularly in paint films.

Abstract: A pull-tab can closure of a thin metal foil membrane less than 0.15 mm. thick is provided with a peripheral scoreline for easy opening. The provision of a peripheral scoreline in a thin metal foil membrane is made possible by providing a flexible portion of the membrane parallel to and inside the radius of the scoreline. The flexible portion may be in the form of an inclined area relative to the scoreline or in the form of one or more concentric groove-like convex areas inside the radius of the scoreline. A method of making the closure and stamping means having a beveled score-forming edge are also disclosed.

Abstract: There are disclosed furfuryl alcohol copolymers of a polyester prepolymer of maleic acid or anhydride and a polyhydric alcohol which incorporate tungsten and/or molybdenum metal atoms. The metal atoms are incorporated into the copolymers by reacting the polyester prepolymer with a reaction product of tungsten or molybdenum and pyrrolidine.

Abstract: An amusement device is provided with an elongated upstanding transparent tube, closed at its top and bottom, and containing a suitable projectile, advantageously a ball. A launching means in the form of a pivotal lever is provided adjacent the bottom of the tube. Ball retaining slide members are positioned at spaced locations along the tube and are adapted to be digitally moved into and out of the interior of the tube. The ball normally rests at the bottom of the tube upon the launching lever. When the lever is depressed the ball is propelled upwardly in the tube and the user then tries to digitally insert a slide member for the purpose of catching and retaining the ball as it gravitationally drops through the tube.

Abstract: Microspheric opacifying agents are provided by admixing an aqueous, partially condensed, aldehyde condensation product with an oily material containing an emulsifying agent thereby forming a water-in-oil emulsion, admixing an amphiphilic acid catalyst with the emulsion and polymerizing the condensation product to form discrete, substantially spherical, opaque, solid particles. Additionally, the solid particles may be separated from the oily continuous phase and admixed with water for the further removal of oil material, and thereby causing the formation of spherical agglomerates or "super particles" having a substantially greater opacity than the aforesaid discrete particles. The super particles are hollow, substantially spherical particles having substantially spherical, discontinuous walls composed of agglomerated substantially spherical particles.

Abstract: There is disclosed an electrical connector which comprises three adjacent fingers extending from a base. When an insulated electrical conductor is inserted between a pair of fingers, the insulation is crushed or cut making the desired contact. There is also disclosed a block of insulating material containing such connectors.

Abstract: A method for belling the ends of thermoplastic pipes including the steps of delivering the pipes successively to an initial location adjacent conveyor means including a continuously driven endless belt, and transferring the pipes successively from the initial location onto the conveyor means in a spaced relationship with each pipe disposed for movement by the conveyor means in a direction transverse to the length of the pipe and in a spaced relationship through heating and belling stations.

Abstract: A dental saliva ejector in which the ejector tube is equipped with a free-swivelling connector for connection to a suction conduit, the outlet end portion of the ejector tube being removably engaged in the bore of one member of the swivel connector in a resiliently compressed force fit, the swivel connector comprising two members which can be separated for cleaning.

Abstract: Apparatus for forming pipe from an elongated metal strip including a supply reel for the strip, an elongated tubular carrier, an axle at one end of the carrier for supporting the supply reel and edge-forming means for bending the edges of the strip to join them in a helical fashion to form the pipe wall. In one embodiment, the supply reel is supported at one end of the carrier and the strip is guided through the carrier and out through an opening near the other end. The carrier is supported for horizontal rotation. Near the opening there are guide rolls arranged in a helical path so that the strip emerges through the carrier, goes through the guide rolls, and then goes through the edge-forming devices including profiling and rabbeting rolls, also helically arranged. A motor is mounted at that end of the carrier and a chain drive from the motor drives the profiling and rabbeting rolls.

Abstract: A mounting plate having three knockouts for three bolt locations of a deadbolt lock is mounted behind a rectangular opening in the edge of a hollow door. A filler plate and a cover plate are provided to cover the unused ones of the knockouts. When no deadbolt lock is installed in the door, the entire filler and cover plates are used to substantially fill the rectangular opening. When a dead bolt is installed in the door, a knockout is removed to leave an opening at the proper location for the bolt to pass through. The deadbolt lock bore drilling is made on the selected centerline either by the distributor or installer. The filler and cover plates are broken along weakened separation lines and appropriate portions thereof are attached to the mounting plate to cover the unused knockout locations. An adjustable backset lockset mounting arrangement is mounted adjacent the rectangular opening to receive and support the lockset in either of two positions. Breakouts in the door are preformed.

Abstract: A blood typing installation comprises a transparent cradle for a glass agglutination plate and a flash behind the cradle to project an image of the plate via an optical system onto a screen at the bottom of a laterally open box carried by sliding tubes mounted on the installation casing. Further sliding tubes carry a camera for photographing both the image on the screen and the individual whose blood is being typed and who is placed behind the box, to provide a record card.

Abstract: A flight simulator having an operator console, a conventional television receiver and one or more transparencies which are overlaid on the face of the television receiver.Electronic signals, generated by circuits housed in the operator console, produce an illuminated display on the television receiver including movable symbols representing the simulated aircraft, and fixed symbols representing environmental features such as landing fields. Controls on the console permit an operator to "fly" the aircraft symbol from, around and to the fields. Two modes of operation are provided, one simulating cross-country flight and the other, employing an enlarged scale representation, simulating takeoff and landing conditions.The overlay includes other fixed environmental features such as mountains. The display is divided into two portions, one in elevation and the other in plan, with aircraft symbols being concurrently visible in each portion.

Abstract: Marker posts, useful for delineating traffic paths, e.g., on highways, airports and parking areas, capable of being impacted and run over by vehicles at sub-zero ambient temperatures, with the post returning to its normal upright position. The posts are extruded tubular bodies of polyethylene modified by an additional polymer selected from the group consisting of ethylene-vinyl acetate copolymers and ethylene-ethyl acrylate copolymers.

Abstract: A plurality of extrusion dies are operated from the same source of heat-plastified polymeric material, e.g., from a single barrel extruder, via a distribution manifold which includes forwardly diverging flow passages each leading to a different one of the dies. The flow passages of the manifold have equal flow capacities and compensation for differences between the extrusion dies is accomplished by equipping each die assembly with a replaceable flow control insert, the inserts being so dimensioned that the pressure differential across each die assembly, including the insert, is the same.

Abstract: A doll in which an illness symptom is created, a treatment is administered and in which the treatment removes the symptom. One symptom is a fever produced by closing a switch which heats the doll's forehead and moving a member near an orifice of the doll's body, the forehead temperature being recognizable by touch and the oral or other indication being detectable by a simulated thermometer. The treatment comprising insertion of a spoon or simulated pill to open the switch and restore the member. Measles (roseola) is simulated by closing a switch to illuminate translucent portions in the body, presenting the appearance of spots. Mumps is simulated by inflating portions of the cheeks and neck, treatment comprising moving a valve member to slowly deflate the portions. Tachycardia is produced by changing the speed of a motor which drives a heartbeat simulating device. Cough-like sound will be produced by recording devices.

Abstract: An amusement device including a simulated cheese having inlet orifices for a ball and a plurality of exit orifices some of which receive simulated mice therein, and a random distributing assembly located inside the simulated cheese for randomly directing a ball entering the inlet orifices toward one of the exit orifices. If a mouse is present in the randomly selected exit orifice, it is forced out thereof by the ball. If a mouse is not present, the ball passes through the orifice unimpeded.