Abstract: A fireproof personalized identification band or bracelet to be worn by airplane passengers or others exposed to the possibility of a flame-related disaster, which will enable accurate identification of bodies burned beyond recognition. Further, the identification band may also provide immediate identification of an individual in case of injury or illness.

Abstract: Frame synchronization is achieved in a pulse code modulation receiver, including a receiving counter, of a pulse code modulation time division multiplex telecommunications network in response to receipt of frame synchronizing signals which occur in each m-th of the pulse frames on which the telecommunications system is based. A hunting process is carried out during a synchronizing time interval following the occurrence of frame synchronizing the signals at intervals of m pulse frames and in response to such occurrence a receiving counter is synchronized. The contents of the time sections in which the frame synchronizing signals can occur are stored for a period of m-l pulse frames, along with the time section contents of corresponding time sections of preceding and following pulse frames.

Abstract: A printing device in which solvent dissolved toner is applied to a recording carrier to produce a symbol or image wherein a printing head is received interior of a housing with toner particles circulated in the housing in a gas stream. Solvent ejectors within the print head are positioned adjacent a slot opening of the housing and direct a toner-solvent stream against a recording carrier exterior of the housing.

Abstract: A system for directing calls to selected parties on a multiparty line in exchanges equipped with selective multifrequency ringing generators is disclosed. Ringing applied to the line is converted to a DC logic level pulse train and is compared to logic level pulse trains generated for each frequency of the ringing generator. If the party represented by the frequency on the line has been manually selected for intercept and the pulse trains match for 250 milliseconds, the call is intercepted. Since the pulse trains are at logic level and are generated by the same ringing cycle, they are immune to phase shifts, voltage variations, and electrical noise.

Abstract: A machine for machining arcuate bottomed blind ended slots longitudinally within the bore of a sleeve member which has a cutting tool mounted for angular reciprocation so as to execute a succession of alternate cutting and retraction strokes in relation to a sleeve member gripped in a work carrier of the machine, the machine being provided with means including a pair of cams each having a cam follower that are arranged to impart to either the cutting tool or the sleeve member a motion such that during each retraction stroke of the cutting tool one cam produces relative movement of the tool and the sleeve away from and towards each other while the second cam produces a progressive relative movement of the tool and the sleeve towards each other during each successive stroke whereby an arcuate bottomed blind ended slot is progressively machined in the sleeve.

Abstract: An improved catalyst system is disclosed for use in the polymerization or copolymerization of olefins. The catalyst comprises a transition metal compound, an organometal compound and a composite carrier. This carrier is constituted by a SO.sub.3 treated alumina and a magnesium and/or a calcium compound. The polymerization or copolymerization of olefins such as ethylene, propylene and 1-butene is effected under conditions similar to those for reactions by means of Ziegler catalysts, but the resulting polyolefins have a wider molecular weight distribution, viz, a larger flow parameter as required for extrusion or blow molding.

Abstract: A mounting bracket for an outboard electric trolling motor has center and side arms for moving and supporting a propulsion motor, as for a fishing boat, between a submerged, outboard operating position and a retracted inboard, locked and secured storage position on the deck of the boat. An adjustable linkage is interposed between pivot axes on the side arms of the bracket for adjustment of the orientation of the motor shaft in the retracted storage position. Such adjustment selectively biases the propulsion motor housing downwardly onto a resilient pad on the bracket to cushion same against shocks occurring during trailering and during high-speed water operation of the boat.

Abstract: In the illustrated embodiments, a rotary position encoder is manually positioned to select any of a set of x-ray exposure times to be used in making medical x-ray photographs. In one form, the encoder output selects a code word from a read only memory, and a comparator ends the timing cycle when a counter reaches a count value corresponding to the active code word. The pulse generator supplying input pulses to the counter, rather than operating at a constant rate, may be controlled so that the pulse count per unit time corresponds to a specified mAs-product, an x-ray tube being switched off when a selected count value (corresponding to a desired mAs-product) is reached.

Abstract: A screw for use in the bore of an extruder barrel of a molding machine thermo-plastics material feeder has an intermediate section of circumferentially interrupted helical flights or screw threads with inclined ramps on the leading ends of the interrupted flights or threads effective to flatten unmelted lumps of plastics material for increasing the surface area thereof to enhance heat transfer for expediting melting of the material. The tapered ramps are preferably longitudinally grooved forming shallow pockets gripping the plastics material and shearing the lumps as they are wedged between the ramps and bore of the extruder barrel. The peripheries of the flights or screw threads are spaced from the bore of the extruder barrel to define extrusion gaps therebetween with the gaps diminishing in thickness from the inlet to the outlet ends of the screw section or zone.

Abstract: Several forms of skewered food cooking devices are disclosed, each of which provides means for replaceably supporting a plurality of loaded skewers generally cantilever fashion in cooking relation to a heat source, and means for effecting rotation of each of the skewers about its axis while supported in the cantilever fashion. The rotation effecting means comprise a driven member for each of the skewers, and rotary driving member common to all of the skewers and with which the driven members engage releasably.

Abstract: A bucket wheel charging valve having an outer enclosing housing with first and second counter-rotatable wheels on parallel axes therein with each wheel having cells along the periphery with the cell walls swung on an axis coincident with the opposite wheel and the tip end of the spokes between the cells sweeping the cells of the opposite wheel as each wheel is incrementally advanced while the other cell is stationary.

Abstract: A high intensity magnetic field separator for the wet preparation of magnetizable particles of solids receives a charging material having a carrier medium with the particles therein through an arrangement of ferromagnetic bodies, organized as a matrix, in the area of a magnetic field. A hollow body of magnetically inert material is rotatably mounted for rotation about a vertical axis and carries a ferromagnetic body on its outer side and rotates in close proximity about at least one magnetic system which fixedly mounted within the interior of the rotating body. The hollow body is at least approximately rotationally symmetrical and is preferably a cylinder, but may take the shape of a truncated cone or a polygon. The magnetic system comprises an arrangement of superconducting coils in a cryostat which has refrigeration conduits extending down through the open of the hollow body and downwardly through the base of the machine which mounts the hollow body.

Abstract: A cockroach extermination apparatus is disclosed having an outer enclosure with an open top end and a plurality of entranceways at a bottom end thereof. An inner cylindrical enclosure is receivable in telescoping fashion within the outer enclosure. The inner enclosure has a top wall and creates a darkened environment. The inner enclosure is adjustable so as to selectively close the entranceways. Within the inner enclosure a beehive-like core is removably secured in screw-like fashion. The core has a plurality of inner entranceways and a plurality of pockets into which cockroaches crawl in the darkened environment. When desired, the cockroaches are exterminated by closing the outer entranceways and then, when desired, removing the inner enclosure, unscrewing the core, and holding the core under a stream of water to wash away the cockroaches.

Abstract: A method and apparatus for producing a high frequency rotating magnetic field, in particular for domain transport stores, utilizes a rectangular pulse sequence which is fed into two parallel connected flip-flops, one of the flip-flops having an inverter connected serially in front, effecting flip-flop output signals which are phase shifted by 90.degree. which are fed via a terminal stage into respective coils of a Helmholtz coil pair, each of which coils are supplemented with capacitors to form resonant circuits.

Abstract: A photosensitive matrix having a substrate with a group of row conductors, a group of column conductors extending across the row conductors to form a plurality of points of intersection with a photoconductive cell in series with a rectifier adjacent each point to inteconnect the row conductor to the column conductor characterized by the substrate being of a material which is at least approximately light impermeable in the light-sensitive spectrum of the photoconductive cells so that light projected on one cell is not conducted by the substrate to create a false signal in adjacent cells. Preferably, the substrate is a ceramic material which has been dyed black and the dyed black ceramic material consists of Al.sub.2 O.sub.3 mixed with Fe.sub.2 O.sub.3.

Abstract: An animated visual effect adaptor unit for a still picture projector which has a projection gate for receiving a slide holder between a light source and a projection lens system, comprising an elongate support having a first portion to be received in the projection gate and a second portion which remains outside of the gate and carries a power drive coupled to drive rotatably, a translucent disk mounting a visual effect design across a projection aperture in the first portion and through which a light beam from the source effects projection of the disk design through the lens system and onto a projection surface to provide an animated visual effect as the disk rotates. A second stationary translucent design carrying disk may be aligned with the rotary disk for increased animation effect.

Abstract: A travelling-wave tube with improved heat dissipation characteristics, having a helical delay line disposed between an electron-beam generating system and an electron-beam receiver, with the helical delay line being supported by a plurality of retaining members, at least one of which is made out of a material different from the remaining members, the latter being made out of quartz and the first mentioned member being made of a material that has a better heat conducting capacity than the quartz rods, at least in radial direction, and has a dielectric constant that does not differ sufficiently from that of quartz to materially effect the gain of the tube or dispersion curve of the signal wave.

Abstract: In the illustrated embodiment, each detector is reciprocally mounted for movement from a retracted position clear of the X-ray beam into an operative position. For a fan-shaped X-ray beam which is shifted by activating successive electron sources arranged about a ring anode, successive sets of detectors are activated, always on the opposite side of the patient location from the active focus. As a specific example, successive sets of electromagnets may be activated by an electronic stepping circuit to provide one-degree shifts in the active set of detectors.

Abstract: A radioluscent window structure comprised of an aluminum pane gas-impermeably sealed to a metal frame, as on a vacuum tube, is produced by applying a silver layer on the outer frame edges and on the outer pane edges, positioning the resultant metal frame and pane so that the silver layers thereof are in contact with one another and subjecting the resulting structure to diffusion welding conditions sufficient to achieve a gas-impermeable seal between the frame and the pane.

Abstract: A fibrous web is continuously formed between inner and outer endless foraminous forming belts between which stock slurry is fed from a headbox, the belts being held in tension as they wrap a first convexly curved forming run surface from which the outer belt is separated immediately following the forming run, the inner belt carrying the wet web then running over a second convexly curved surface from the offrunning side of which the inner belt is then separated and a porous pickoff belt is pressed by a substantial convex area of an imperforate pickup roll against the wet web on the inner belt, the inner belt being guided to diverge from the pickoff belt commencing at the off-running end of the convex area of contact of the pickup roll and the wet web being forced to adhere to the pickoff belt by the vacuum action of the imperforate surface of the pickup roll. By multiplication of the apparatus a multiply web can be formed.