Abstract: A plasticating apparatus having a barrel and a screw rotatably disposed therein. The screw has a mixing section including a helical conveying flight to form a helical passage for transporting resinous material along the screw. The mixing section further includes a helical, zig-zag barrier flight spaced from the conveying flight to divide the helical passage into channels of varying cyclic depth in the helical direction of the channels. The portions of minimum depth of the channels define wave crests which are helically displaced from each other. The barrier flight has a first section converging toward one side of the conveying flight, and a second segment diverging away from the same side of the conveying flight. The plurality of first and second segments repeat throughout the mixing section.

Abstract: A lamp socket assembly including a housing, a contact insert, and a body. The contact insert is captured in a cavity of the housing by the body. The body is welded to the housing. Lugs on the body secure the assembly to a panel. Contacts are retained in the contact insert by engagement of U-shaped portions thereof in slots of the contact insert. Blade terminals are inserted through the contacts and contact insert to interlock the terminals with the contacts and contact insert. The blade terminals include a U-shaped portion whereby the interlocking end of the terminals define one leg of the U-shaped portion. A second end of the blade terminal extends at right angles to the interlocking end of the blade terminal and extends axially away from the body whereby a socket connector may be axially connected to the housing. The socket connector includes locking fingers for securing the socket connector to the housing.

Abstract: In a card reader for reading information from a card which may contain the information as optical, magnetic, electronic or physical data, inside a casing is provided a carriage which carries the card and is adapted to be conveyed from an outer position to an inner position by a linear drive mechanism. By not using a pair of drive and pinch rollers as opposed to conventional card readers, the card is free from contaimination by the rollers, and the operation reliability of the card reader is improved. Further, the elimination of rollers also contributes to the reduction in the overall height of the card reader. The clamp mechanism for securing a card to the carriage may be provided with interlocking means which prevents the movement of the carriage until a card is securely gripped by the clamp mechanism.

Abstract: A material web to be dried runs across a first drying cylinder onto which it is forced by a concurrently running continuous drying wire. Thereafter, the web and the drying wire proceed jointly from the first drying cylinder to a suction guide roll. From the latter, at least the drying wire returns to another drying cylinder. This path of the drying wire defines a wire space S. Blown into this wire space, for instance by means of a blow pipe, is drying air at uniform distribution across the machine width and sucked out again by the suction guide roll. This suction air is blown at the material web by means of a circulation air fan, at the circumference of the suction guide roll, and is sucked away again from there by means of an exhaust air fan.

Abstract: A mounting bracket assembly for a sunshade including an inner bracket having an integrally formed square boss that is inserted into a corresponding hole in the sheet metal roof of a vehicle. A bracket arm is snapped into the inner bracket, and includes a key that fits within an arcuate keyway in the inner bracket. Upon initial pivoting of the bracket arm, the key engages the end wall of the keyway and causes the inner bracket to rotate to a locked position wherein the square boss is against the back surface of the roof and the key freely moves within the arcuate keyway through the range of sunshade operation. An outer bracket snaps over the inner bracket prior to its insertion into the roof, in order to keep the assembly against the headliner when the inner bracket is rotated. A tool having an arcuate tip may be inserted into an opening in the inner bracket for removal of the sunshade.

Abstract: A mounting structure for attaching an elongated swather head to a tractor of the bi-directional type, the structure mounting the head in front of the tractor in a swathing direction of travel and accommodating swinging movement of the head to a trailing transport mode behind the tractor when travelling in a direction opposite to the swathing direction. The mounting structure is carried by the tractor which, in the operational mode of the swather, is disposed to one side of the center-line of the swather head. The mounting structure includes members for securement to the tractor and an elongated support member projecting transversely across the front of the tractor to the side of the tractor opposite to the center-line of the swather head. The head has a rear frame member which extends parallel to the head behind an intermediate portion thereof and is carried at one end by a hinge connection to the support member at the side of the tractor opposite to the center-line of the swather head.

Abstract: A belt tensioner for a vacuum cleaner includes a roller and a torsion spring to bias the roller against an endless, non-stretch, flat vacuum cleaner belt to exert an increasing force thereon as the belt lengthens with wear and the torsion spring unwinds, thereby maintaining the tension in the belt substantially constant as the belt lengthens with wear. The tensioner includes a pair of connecting arms each having a first end coupled to opposite ends of the roller and each having a second end pivotal about a pivot axis, the torsion spring being disposed adjacent to the second ends of the connecting arms. The spring rate of the torsion spring is relatively low so that the moment about a pivot axis through the center of the torsion spring of the force applied to the connecting arms by the free end of the torsion spring decreases only slightly as the belt lengthens with wear.

Abstract: A leakproof fountain pen with a ballbearing tip includes an upper casing threadedly engaged to an ink flow guide. An ink reservoir has an open end received by an annular base of the ink flow guide. The upper casing combines with the ink flow guide to form a chamber for collecting ink which may flow from the ink reservoir. The ink flow guide further comprises an axial vent hole communicated with the atmosphere; an axial ink hole to serve as a path for ink flowing to and from the chamber and the ink reservoir; and an axial control hole having a flow portion with a bigger diameter. A gravity post is movably disposed inside the flow portion and can block the passage of ink between the ink reservoir and the control hole. A plug unit acts as a support for the gravity post. A first end of the ink flow guide is substantially V-shaped with the lowest point at the opening of the ink hole to direct the collected ink from the chamber towards the ink hole when the pen is held upright.

Abstract: A spout assembly for a hot water dispenser having a valve body including an outlet and a sealed valve assembly for controlling liquid flow within the valve body. A liquid conduit is connected to the outlet. A spout cover is removably disposed over the valve body and the liquid conduit such that the spout cover may be removed from the valve body without disturbing the seal of the valve assembly.

Abstract: A projector has a light source (1) for producing a parallel beam of white light (4); two dichroic prisms (21, 22) each having two dichroic colour-splitting layers, which on three of their sides have three liquid crystal light valve arrangements (23, 24, 25, 26, 27, 28) associated with different components of the color image; a lens (8) through which the color image components produced by the light valve arrangements (23 to 28) can be projected together on to a screen. The light valve arrangements (23 to 28) associated with the two dichroic prisms operate by reflection. Each of the two dichroic prisms (21, 22) is coupled with one of the outlets of a polarizing beam splitter (10), said outlets being associated with different polarizing directions. The polarizing beam splitter (10) distributes the beam of white light (4, 6) to the two dichroic prisms (21, 22) and directs the light of the activated image points travelling back from the two dichroic prisms into the lens (8).

Abstract: In a process and an apparatus for determining the coercive field strength and the maximum pitch of the hysteresis cure in set-up techniques a test body is magnetized in a magnetic field of an exciter coil fed with an alternating current, as the hysteresis curve of the test body is traversed a number of times with the frequency of the alternating current and the tangential field strength on the test body surface generated by the exciter coil is detected continuously with the aid of a magnetic field strength sensor during the traversing of the hysteresis curve. From a harmonic analysis of the time course of the tangential field strength within one period there is calculated a distortion factor for the determination of the maximum pitch of the hysteresis curve.

Abstract: The present invention involves a two stage furnace and a method of controlling the fans. In the furnace, a high pressure switch indicates whether sufficient air is present to support high combustion. Normally the furnace operates at one of the combustion settings. The circulator fan operates at the high speed setting when the high pressure switch indicates that sufficient air is present for high combustion, and operates at the low speed setting when the high pressure switch indicates that insufficient air is present for high combustion.

Abstract: A fan having a plurality of rotating blades and a motor to rotate the blades. A source of illumination is secured to the outer periphery of the rotating blades for rotation therewith, thus defining the shape of each blade when the source of illumination is energized. Further decorative lighting may also be provided for the stationary parts of the fan.

Abstract: In a process for testing the tightness of a flexible collapsible container which in condition of use is sealed by means of a screw cap screwed on a spout, the container is evacuated after its manufacture, tightly sealed and subsequently subjected to atmospheric pressure. If the container is tight, it will remain its shape caused by the vacuum. The device for the application of this process consists essentially of a suction bell on which the container is placed and features a rotor unit with the aid of which a cap can be screwed on the container. The invention enables as such a simple and dependable testing of collapsible plastic containers, but also of containers of stable form as well as closures, specifically screw caps.

Abstract: An impingement oven comprising a cooking chamber, a conveyor, and a plurality of plenums. A plurality of finger duct members attached to each plenum are located above and below the conveyor. Adjacent sidewalls of adjacent duct members are tapered relative to one another to define an outwardly tapered air return space in a direction away from the plenum. A plurality of air deflectors are secured to an inner surface of each duct member for deflecting air through a plurality of nozzles located on the duct member. A partition between the plenums segregates return air flowing from the cooking chamber to adjacent plenums. For at least two ovens stacked one above the other, the invention further includes a cooling system having a cooling compartment and a central cooling duct for drawing cool air from near floor level and moving the cool air upwardly to cool and control circuitry for each of the stacked ovens.

Abstract: A device for the vertical stacking of successively fed coins or similar disk-shaped articles, including a coin carrier connected to a continuously revolving conveyor belt and receiving the stack of coins while capable of being lowered in a stacking space of a coin packing machine in synchronism with the growing stack. The coin carriers are formed by an L-shaped finger whose first shank protrudes horizontally into the stacking space while its second shank is so connected with a pair of continuously revolving conveyor belts that the conveyor belts, based on the longitudinal axis of the second shank, attach on two mutually offset, lateral articulated axles. The continuously revolving conveyor belts run along trajectories which correspond to the spacing of the width of the second shank and are parallel to each other while in the vertical stacking direction they are mutually offset in accordance with the spacing of the lateral articulated axles.

Abstract: A junction box that facilitates the connection of a conductor to a component located within the box. The box comprises a rear panel, side panels extending around the periphery of the rear panel and a front closure panel spaced from the rear panel. A pair of apertures are located in opposite ones of the side panels to allow passage of the conductor through the box. The side panels are formed in two sections with the sections meeting on the center line of the aperture. One section is attached to the rear panel and the other section is attached to a further side panel that extends between the opposite ones of the side panels. The further side panel is releasably connected to the rear panel by a releasable fastening positioned to be accessible upon removal of the closure panel.

Abstract: A hermetically sealed twin rotary compressor is disclosed wherein a pair of rotary vane compressors are synchronously, coaxially coupled to respective axial ends of a drive motor by means of a quill disposed in a rotation rotor thereof. The rotary compressor crankshafts are coupled to the quill with their eccentric portion oriented opposite one another with respect to the axis of rotation. Counterbalancing weights are mounted to the motor end rings oppositely the adjacent eccentric portion with respect to the axis of rotation. A suction accumulator is provided having a pair of tubes extending from fluid outlets on the accumulator to respective fluid inlets associated with the pair of compressors. The tubes pass through a pair of spaced apertures in the housing and effectively mount the suction accumulator to the housing. A method of assembling the compressor assembly, including accumulator, is also disclosed.