Abstract: A display terminal is provided which holds a roll of film, and can project the image of any film frame onto a console screen. The need for a platen to precisely locate a frame on the optical imaging plane, is avoided by keeping the film in tension. The tension is maintained while the film is stationary, by utilizing a pair of reel-driving motors that each provide a torque that varies with the diameter of the film roll on the corresponding reel. The film region being projected, can be held in a slight curve to more reliably hold all areas of the projected film region near a predetermined film plane. A film identification track and clock track can extend along one edge of the film to identify every frame and accurately center the frame at the imaging, or projection, station. The film can be rapidly moved to bring a desired frame to approximately the imaging station, with slight overshoot, and the film then can be inched back to center the frame.

Abstract: An elongated label strip suitable for use with motor driven first and second sprocket rollers for sequentially delivering labels to a mechanism operable to apply each delivered label to an object conveyed therepast. The label strip includes first and second elongated carrier strip portions positioned parallel to and closely spaced from one another to define a separation line between adjacent edges. Each carrier strip portion defines a plurality of uniformly spaced cuts therein aligned parallel to the separation line for cooperatively receiving the sprockets of one of said rollers. A multiplicity of labels is carried by and spaced along the carrier strip portions with each label being releasably adhered to both the first and second carrier strip portions so as to bridge the separation line therebetween.

Abstract: An apparatus is described for producing a lightweight structural material (12), by forming gas-filled shells (38) of molten material from a matrix of nozzles (22) that form shells of very uniform size at very uniform rates. The matrix of molten shells coalesce into a multi-cell material of controlled cellular structure. The shells can be of two different sizes (38, 44) that are interspersed, to form a multicell material that has a regular cell pattern but which avoids planes of weakness and localized voids. The gas (50) in the shells can be under a high pressure, and can be a fire extinguishing gas.

Abstract: A urine discharge measuring system for medical use which includes a gimbal mounted frame supporting a urine container of fixed dimensions to collect urine from a urinary catheter attached to a patient. An ultrasonic transceiver mounted above the container and operated in conjunction with a microprocessor based control unit, positioned adjacent to the transceiver, periodically and automatically measures the height of the urine collected within the container. The measured fluid height is converted to fluid volume by the control unit. To maintain the sterility of the container, the transceiver transducer(s) is mechanically isolated from the urine container by elements which allow the ultrasonic energy to be transmitted to and received from the interior of the container. In one described embodiment, desired measured volume accuracy is achieved by employing a reflective target within the urine container at a known fixed distance from the transceiver transducer.

Abstract: A hammer-type device is driven by a cam and spring arrangement in reciprocating motion to strike a moving train wheel for producing vibrations therein which are used to detect defects in the wheel.

Abstract: A system is described that combines geometrical and electrostatic focusing to provide high ion extraction efficiency and good focusing of an accelerated ion beam. The apparatus includes a pair of curved extraction grids (16, 18) with multiple pairs of aligned holes positioned to direct a group of beamlets (20) along converging paths. The extraction grids are closely spaced and maintained at a moderate potential to efficiently extract beamlets of ions and allow them to combine into a single beam (14). An accelerator electrode device (22) downstream from the extraction grids, is at a much lower potential than the grids to accelerate the combined beam.

Abstract: A versatile focusing radiation analyzer for EXAFS, fluorescence EXAFS, Raman or modified Compton scattering, diffraction, Rayleigh scattering and other experiments is comprised of a concave focusing element (10) placed at the end of a central arm (11) pivoted at the center (24) of a circle (21). Side arms (12, 13) are also pivoted at the center (24). A platform (17) supports an X-ray source (50, 61, 66) or a sample (16) at the end of one side arm (12) while a platform (23) supports a detector (22, 63, 66), sample (51) and detector (52) or Mossbauer source (80). Constraining bars (14, 15) attached to the side arms and to a slide (29) in a slot (30) cause one side arm (13) to maintain an angle (.theta.) with the center arm equal to the angle of the other side arm (12) with the center arm as the center arm is driven relative to that side arm by suitable means (25-28).

Abstract: A stereo audio system for a motorcycle includes a housing (10) for a radio receiver and/or tape deck and speaker-mirror assemblies (11, 12) mounted on base-socket assemblies (13, 14) threaded over mounting posts screwed into tapped holes in place of conventional mirrors on the motorcycle handle bars (15, 16). Crossbars (17, 18) support the housing from the base-socket assemblies. Speakers (11a, 12a) are connected to a power amplifier in the housing by wires which are routed through the base-socket assemblies to the crossbars, and then inside or along the outside of the crossbars to the housing. Mirrors (11c, 12c) occupy half of the housings (11b, 12b) for the speakers.

Abstract: A fluid swivel is described, of the type which includes an annular chamber formed at the interface between the stationary and rotatable parts of the swivel, which facilitates the passage of a pig through the chamber. A pig diverter device lies beside the outlet formed in one of the parts through which fluid normally exits the chamber, to divert a pig moving through the chamber into the outlet. The diverter device can include a projection lying on the downstream side of the outlet. The projection can extend radially only up to the interface between the two swivel parts, to facilitate disassembly of the swivel. The diverter device can also include a valving mechanism that can shut off fluid flow immediately downstream of the outlet, to direct the fluid stream and pig into the outlet, and the upstream end of the outlet can extend tangent to the chamber to facilitate pig entry therein.

Abstract: A method and apparatus is disclosed for detecting an impending saturation in nonlinear magnetic material for particular operating conditions, such as in a core of a power transformer T.sub.1 of a switched-mode converter, in response to a varying magnetic field in a principal direction induced by a drive current through its primary winding with its axis aligned in the principal direction. A transverse flux sense winding (20) is used in monitoring the rate of change of flux density of a transverse magnetic field to produce a voltage proportional thereto. That voltage is compared in a comparator (22) with a predetermined threshold voltage characteristic of impending saturation of the core. The output of the comparator is used for controlling drivers (25) to prevent saturation of the switched-mode converter bias switching the drivers off alternately when the sensed voltage reaches the predetermined threshold set at the comparator (22).

Abstract: The arrangement comprises a sewing apparatus which is partially supported below a material-supporting table and which partially extends through an opening above the table surface. Control means are provided to control the operation of the sewing apparatus as well as to feed the material to be sewn along each direction in which a seam is to be formed. Sensing means are provided to sense the fact that a seam has been completed. Also, means are provided which clamp the material to the table after each seam is sewn. The control means further include means to rotate the sewing apparatus and align it in such a way that when the material is again fed to the sewing apparatus, the latter sews a successive seam along a different selected direction.

Abstract: An ear plug is described, which includes a shell formed of closed cell foam material, with the shell surface having a multiplicity of small bumps that also form the walls of cells which lie at the surface of the shell, whereby to avoid wrinkling when the shell is squeezed into the ear canal. A stem of resilient material lies freely moveable in the shell, and is short so it extends substantially no further than the open end of the shell.

Abstract: A method for electroslag welding of railroad rails under field conditions employs a special mold bottom member and a special guide tube structure. The mold bottom member includes a metallic insert which is supported by heat-insulating means, e.g. ceramic material in a cavity in a bottom copper block. The ceramic effectively heat insulates the insert from the copper block so when arcing takes place at the start of the welding, the heat is retained by the insert, which forms part of the weld. The guide tube structure is flared toward the bottom and guides two continuously fed electrodes. The structure includes wing-like members near its bottom end. The bottom of the structure is designed wth sharp corners, so that when arcing takes place some of the guide structure metal melts to form a uniform layer of molten metal, which aids in the melting of flux into a slug bath of uniformly distributed temperature.

Abstract: The present invention comprises a locking device and, more particularly, a security bracket, finding particular application for bicycles and the like with brake handles. The security bracket comprises a small U-shaped shackle and a member which is slidable thereon and a lock. In use the brake handle of the bicycle is locked by the shackle in a position which urges the brake handle toward the bike handle to thereby apply braking pressure to the bike until the shackle is unlocked.

Abstract: Optical fiber communication at 3 to 8 Gbit/s utilizes a step recovery diode (SRD 16) to provide a narrow pulse (100 ps) with a long pulse period (10 ns). A power divider (20) multiplexes the narrow pulse through channel switches (1, 2, 3) and a fourth channel to the diode detector (14) of the receiver. The switches are used for binary code modulation of the multiplexed narrow pulses, which are staggered in time by delay lines (24), and combined into a train of equally spaced and modulated pulses by an OR gate (26). A laser driver (22) responds to the train to drive a damped relaxation oscillation peak, single-mode and reduced spontaneous emission lifetime semiconductor laser biased 10-20% above threshold current (10). At the receiver, detected optical pulses are demultiplexed by a delay line (30) and AND gates (32) which are synchronized by clock pulses from a source (18) which drive the SRD. Each clock pulse is delayed a sufficient time to align it with a group of demultiplexed pulses.

Abstract: A cap structure for application to the head of a patient to create a cold environment around the scalp portion of the patient during cytotoxic treatment, thereby to reduce alopecia which might arise as a result of the treatment. The cap structure is comprised of a plurality of individual cap structure forming sections or panels with each panel having at least one internal chamber. A substance in each of these internal chambers is capable of being subjected to and achieving a reduced temperature, and of retaining a reduced temperature for a substantial period of time. The cap sections are connected together by flexible members in order to facilitate conforming the cap structure to the patient. The cap structure may include an upper section, two side sections and a rear section, which sections may be fastened together for use, and unfastened for cleaning and/or storage. The cap structure could also be comprised of a unitary member which may be provided with a plurality of panels separated by flexible members.