Abstract: The instant invention is directed to a method for writing and erasing images in the surface of a photosensitive glass which demonstrates photoanisotropic behavior at a mega Hz or higher rate. This is accomplished by utilizing an erasing beam of linearly-polarized red light having about a 45.degree. change in the direction of polarization from that of the writing beam. Also, this invention provides a method for preventing the alteration of an image written into said glass surface, the method involving exposing the area of the image to ultraviolet radiation.

Abstract: The production of pile fabrics in which the stroke of the batten of a loom during operation is periodically decreased from the value corresponding to a full stroke of the batten by a value for partial strokes which is referred to as the pre-beating distance.

Abstract: This invention relates to a quick screw mounting means usable with a plastic member adapted to accept secondary elements relative thereto. The mounting means includes a bore hole open along one side formed in the mounting member and an axially extending slot substantially parallel to and communicating with said bore holes along its open side and extending laterally therefrom. A flat sheet metal clip is slid into the slot and locked therein by a head flange engaging the outer end and a pair of resilient leg members opposite the head engaging the mounting means adjacent the opposite end of the bore hole. At least one resilient arm intermediate the head and leg members extends into the bore hole to engage a screw theaded member that is axially pushed without rotation into the bore hole. The arms engage the thread and permit adjustment of the screw, as well as removal, by appropriate rotation.

Abstract: A secretarial shift mechanism which includes two shift keyswitches and one shift lock keyswitch is disclosed. The two shift keyswitches have T-shaped actuating bars secured to their plungers. The shift lock and release keyswitch has a generally C-shaped wire spring retainer placed around its housing which is utilized to secure a hook on a latching finger on a ledge that is formed on the plunger of the shift lock keyswitch. The latching finger is secured to an elongated torsion bar which has a pair of arms at the ends of the bar that are bent toward the two shift keyswitches. The torsion bar is held at its ends against the frame that holds the keyswitches of the keyboard by clamping caps that project from the shift keyswitches and have grooves in them that receive the torsion bar therein. When the shift lock keyswitch is depressed, a hook on the latching finger that is secured at the torsion bar engages a ledge on the plunger of the shift lock keyswitch and holds it down.

Abstract: A method of coating an optical waveguide filament employing a die body having an at least partly tapered central aperture and radial means for introducing coating material to the central aperture is disclosed. The method includes exposing the optical waveguide filament to the coating material within the tapered aperture of the die body. The die body and an apparatus for coating the filament is also disclosed.

Abstract: A limit switch wherein a first spring means for actuating a push-button of selfcontained micro-switch and a second spring means only which engages an operating means for absorbing an over-travelling stroke of the operating means which receives an external operating force are both disposed inside a limit switch housing. In normal non-actuating position, respective biasing forces of the both spring means are balanced so that the second spring means restrains the first spring means from engaging the push-button but, upon application of the operating force through the operating means to the second spring means, the restraint of the first spring means is released due to a resilient bowing of the second spring means so as to have the push-button actuated by the biasing force of the first spring means, and the second spring means continues to further bow for absorbing the over-travelling.

Abstract: A system for measuring torque applied by an air tool to a fastener during a fastening operation is disclosed wherein a torque indicating device is provided, preferably in a remote position from the tool, for sensing and indicating the torque applied to a fastener by the tool. In the preferred embodiments, an air pressure signal transmitter is connected between a motor inlet air passage and the torque indicating device for supplying a continuous air signal, indicative of fastener torque applied by the tool, to the torque indicating device during operation of the air tool.

Abstract: A washer for indicating the amount of load placed on a fastener joint. A disc-like body has a pair of arms extending outwardly and then upwardly from two elbow portions. These two arms will deflect toward one another and, when a predetermined load is reached, they will touch. Any loosening occurring within the joint will result in the arms disengaging contact presenting an immediate visual indication.

Abstract: A device for preventing turn-around motions of free trolleys in a power-and-free conveyor having a power rail and a free rail is provided. The device includes a connecting link interconnecting the free trolleys and having holes as well as turn-preventing members on the opposite ends thereof. Each of the trolleys is provided with a downwardly directed rod from the trolley, the rod rotatably passing through a hole of the connecting link and having a stopper at its lower end. The stoppers receive the connecting link when the free trolleys are on the free rail. Each of the turn-preventing members has an engaging portion which extends upward. Each of the engaging portions engages with the lower portion of a free trolley when the free trolley is taken off from the free rail. Thus, the turn-around motions of the free trolleys are prevented and the free trolleys are in the position where their directions are the same as that in which the connecting link extends.

Abstract: A solder glass suspension for sealing glass or other ceramic parts is provided having the characteristics of a reversible gel, exhibiting high viscosity during storage and after extrusion onto a sealing surface, but relatively low viscosity under shear stress during extrusion. The use of the suspension for sealing glass or ceramic parts is also described.

Abstract: A small and compact electric switch having therein means for indicating actuated state of an associated load and yet being simple and easy in interconnecting respective components and also in connecting them with said load and an electric source is provided. The switch has a transformer, the primary winding of which is connected to a switching means and to the source and load while the secondary winding is connected to a light emitting diode forming the indicating means which is enclosed in a rockable button actuating and switching means so that, when the switch is closed, a current is induced in the secondary winding to light the diode due to a source current flowing through the primary winding. Wires from the source and load are held as connected to the switching means by resilient connecting means which are accessible from the exterior for easy wire connection and disconnection.

Abstract: The forming of hermetic seals suitable for sealing materials having dissimilar thermal expansions which are formed by reacting an effective amount of a metal powder, selected from the group consisting of aluminum, antimony and zirconium, with glass frit having a softening point of <750.degree. C. and a coefficient of thermal expansion sufficiently compatible with the materials being sealed to yield seals characterized by a coefficient of thermal expansion closely matching or similar to those of the materials being sealed and a use temperature equal to or greater than 1000.degree. C. The seals of this invention are particularly suitable for bonding ceramic to ceramic.

Abstract: A reinforcing sealing sheet metal fastener anchor for use with at least two fasteners mounted in a multi-apertured thin work panel. The anchor includes at least two fastener accepting apertures located in a planar base and a plurality of locating tabs extending outwardly from said base through a continuous double-faced pressure sensitive tape for positively locating and orientating the anchor relative to the work panel by engaging the margins of at least two different aligned workpiece apertures which are sealed by the tape.

Abstract: Rotary shaking culture measuring method and apparatus characterizes in that culture tubes are disposed radially and at equal intervals in the circumferential direction, and an inclined turntable is disposed at a predetermined angle of inclination with respect to a horizontal reference plane, a central shaft of the inclined turntable serves as a driving shaft whereby a turning motion in a continuous or intermittently indexing form is imparted to the turntable. In addition, the culture tubes revolve along an inclined circular orbit described by such turning motion, and the substance being cultured within the tubes is shaked and cultured by a reciprocative motion of inertial resultant force of centrifugal force and gravity. Furthermore, in a certain position of the turntable the growth of the substance being cultured within all the culture tubes is measured with the lapse of time by a signal obtained at every fixed cycle.

Abstract: A valve arrangement includes spherical core means rotatably mounted in a tubular member with operating means connected to the spherical core means and rotatably supported in a lateral opening in the tubular member to open and close the spherical core means for controlling flow through the tubular member. Seal means are provided between the spherical core means and tubular member and between the operating means and the tubular member with the operating means and the spherical core means having fluid passage means to conduct fluid from the tubular member fluid passage to act on the seal means between the operating means and the tubular member to substantially counterbalance the fluid pressure in the tubular member.

Abstract: A multiple longitudinal traversing shed weaving apparatus comprises a weaving rotor having beat-up or beating elements for the inserted weft threads and shed-retaining elements which retain the warp threads, throughout a predetermined path, in their upper shed position or lower shed position. Each intermediate space between neighboring beat-up elements has operatively associated therewith a respective shed-retaining element which determines the upper shed position or lower shed position. Control means are arranged forwardly of the weaving rotor, viewed in the direction of travel of the warp threads, and serve for the lateral deflection and selective allocation of the warp threads at a shed-retaining element which determines the upper shed position or lower shed position. The control means possesses stroke adjusting elements in the weft direction which are constituted by rods or bars extending in the weft direction.

Abstract: The subject invention is related to the preparation of ceramic bodies wherein the crystal phase consists essentially of cesium-stuffed, hexagonal cordierite. The bodies are capable of use temperatures up to 1600.degree. C., exhibit nearly isotropic axial thermal expansions, and consist essentially, expressed in weight percent on the oxide basis, of about 11-13% MgO, 34-36% Al.sub.2 O.sub.3, 33-42% SiO.sub.2, and 10-22% Cs.sub.2 O.

Abstract: A cross-current type plate heat exchanger comprising a plurality of vertically disposed heat transfer plates arranged side by side to define fluid passageways through which two fluids to be heat exchanged flow in a cross-current fashion. Each heat transfer plate is formed with a plurality of juxtaposed vertical grooves extending from the top to the bottom of the heat transfer surface of the heat transfer plate, and a plurality of substantially horizontal projections are formed between the vertical grooves to divide the heat transfer area into a plurality of sections. Vertically extending short projections which are lower than the vertical grooves are formed between the substantially horizontal projections in such a manner that the number of such short projections provided in the vertically separated sections is progressively increased so that the bottommost section has the greatest number of short projections.

Abstract: The false twist machine has a texturing part arranged below heat treatment zones in which three supply devices and a false twist device are superimposed and staggered from the back to the front in such a manner that in threading in of the thread into these devices turning about and overhead working processes of the operator are avoided. The thread paths formed by the threading in are placed one in front of the other in the sequence of the threading in process. A bobbin creel is movable to the texturing part and is equipped with a thread transfer device which transfers the threads coming from the individual creel bobbins into the vicinity of the first supply device. The winding device is arranged opposite the texturing part at a distance forming an operating alley and gives off the full bobbins to the outerside of the winding device opposite the operating alley. The empty bobbins can be moved from the machine end into a readiness reserve position.

Abstract: A flowline switching apparatus having a tubular housing with end closures and a drum rotatably mounted therein with a passage through the drum aligned with a port in one end closure and positioned to sequentially align with each of a plurality of ports in the other end closure as said drum is rotated, a power cylinder connected to said housing and having a plunger with a ratchet pawl for rotating said drum, a second power cylinder connected to said housing with a plunger adapted to engage sequentially in recesses in the exterior of said drum to lock the drum in preselected positions of passage-port alignment, a third power cylinder connected to the housing with a plunger adapted to engage sequentially in recesses of varying depth on the exterior of said drum to indicate the position of the drum and means balancing fluid pressure between the interior and exterior and between opposite ends of said drum.