baber/WOPTO huggingface dataset:
Patent GB-1327978-A (GB)
Title: Laminated thermoplastic foam-film dish
IPC: B29C51/08
Filed: 1971-12-14
Abstract: 1327978 Dishes MOBIL OIL CORP 14 Dec 1971 [5 Jan 1971] 58011/71 Heading A4A [Also in Division B5] A laminated plastics dish 10 comprising an oriented thermoplastic film 14, e.g. bi-axially oriented polystyrene, and a thermoplastic foam 12, e.g. polystyrene, has an upwardly extending annular side portion with a peripheral rim 16 which tapers to an edge, the foam at the rim edge being compressed at least 50 per cent based on the thickness of the remaining foam. The densities of the foam in the base and uncompressed side portion and in the rim may be 3-6 and up to 10-50 lb/ft<SP>3</SP> respectively. A second thermoplastic film 18 may be present. The initial laminate may be prepared by heat-sealing a foam, which retains its heat following extrusion, to a pre-heated film by means of a heated roller. The laminate is then thermoformed between male and female mould members; the edge may be trimmed by a heated knife. Alternatively the rim may be thermoformed following a main thermoforming operation to produce the dish. The foam may be pigmented and the film may be translucent or transparent. The dish may have a design imprinted thereon.
Patent GB-583537-A (GB)
Abstract: 583,537. Photo-electric musical instruments. PEERS, J. H. R. June 14, 1944, No. 11335. [Class 40 (iii)] In a musical instrument in which sound is produced by variations of a beam of light impinging on a. light-sensitive device associated with an amplifier and reproducer, a disc provided with two sets of slots, the slots in each set being identical and different from the slots of the other set, is rotated adjacent to a fixed disc divided into a number of sectors each formed with one or more apertures, the apertures in the different sectors varying as regards their radial position or number, and light sources mounted behind the sectors of the fixed discs. The disc A having three short slots C1, C2, C3 and three long slots D1, D2, D3 is rotated in front of the apertured plate E forming the end wall of a casing H having radial partitions G1 ... G5 forming compartments for lamps F1 ... F5. The plate E, divided into sectors corresponding to the compartments, is formed with apertures J, K and groups of apertures L, M, N differing in size and number. One or more of the lamps F1 ... F5 may be illuminated and the partitions instead of being light-tight may be provided with apertures so that light from the lamp of one compartment may pass to an adjacent compartment and the arrangement may be such that light from the latter compartment cannot pass to the first-mentioned compartment. In a modification. Fig. 5, the wall of the casing H is extended at Q and is formed with a flange R which prevents stray light from escaping around the periphery of the plate E and disc A, and in a further modification, Fig. 6 (not shown), an extension of the wall of the casing supports a lens which focuses the light on the photo-electric or other light-sensitive cell. The radial edges of the apertures J, K, L ... in the plate E may be curved to modify the wave-form of the derived impulses.
Patent GB-1453469-A (GB)
Title: Centrifugal reactor
IPC: B01J19/26
Filed: 1973-12-17
Abstract: 1453469 Mixing apparatus: vortex apparatus CHEM-TROL POLLUTION SERVICES INC 17 Dec 1973 58419/73 Headings B1C and B1F A mixer has an upper portion 16 and a lower portion 18 terminating in a reduced diameter outlet 20, a tangential inlet conduit 24 whereby a material is caused to flow in a spiral film down the inner wall of the mixer, and a sparger 36 for introducing a second material as a radial spray against the moving film.  Mixing plant is described in which the apparatus is used for neutralizing spent said pickle with lime slurry, one of the metering pumps supplying the materials being controlled by the pH of the product, see Fig. 5 (not shown); treating cyanide waste with alkali and chlorine, the product being recirculated through a tower where it is further contacted with chlorine, see Fig. 6 (not shown); and rendering harmless the waste containing sulphur chloride and chloroform from carbon disulphide manufacture by treating it with lime slurry, the chloroform and traces of carbon disulphide being converted into gases and condensed, see Fig. 7 (not shown). Other applications are the treatment of wastes containing phosphonic acid, plating liquids containing chromium salts, pyridine solutions, boron trifluoride complexes, phenolic solutions, amines and amides.
Patent GB-1298961-A (GB)
Title: An ignition system
IPC: F02P7/063
Filed: 1969-12-05
Abstract: 1298961 Timing ignition; ignition systems NISSAN MOTOR CO Ltd 5 Dec 1969 [10 Dec 1968(2) 5 Feb 1969] 59443/69 Heading F1B An ignition system for an automative internalcombustion engine for a motor vehicle comprises a battery 11, an ignition coil 13 having a primary winding 13a and a secondary winding 13b, the primary winding being connected at one terminal thereof with the battery through an ignition switch 12 and the secondary winding being connected selectively to ignition plugs 17a-17d, and an ignition distributor having a first interrupter 14a and a second interrupter 14b, the second interrupter being connected in parallel with the first interrupter to the primary winding through ignition timing control switch means 18 which is normally kept open and the second interrupter being arranged to provide ignition timings retarded from the timings determined by the first interrupter. The ignition timing control switch means 18 is closed when the motor vehicle is driven under predetermined conditions, whereby (a) when the switch means is open the first interrupter and the primary winding are in series with the battery to provide normal ignition timings and (b) when the switch means is closed the primary winding and the first and second interrupters are in series with the battery to provide retarded ignition timings. The control factor governing the actuation of the control switch may be the vehicle speed, the engine speed, the vacuum level in the intake manifold of the engine or the angular position of the throttle valve in a carburetter or a combination of two or more of these factors may govern the control switch. The control switch may be controlled by the position of a speed selector lever or by hydraulic pressure from an automatic transmission system.
Patent GB-1302020-A (GB)
IPC: H01J9/227
Filed: 1970-12-18
Abstract: 1302020 Colour television tubes MATSUSHITA ELECTRONICS CORP 18 Dec 1970 [29 Dec 1969 (2)] 60233/70 Heading H1D In the manufacture of a colour television screen by a photo-resist process the light source is provided by a ring, or by a point source rotating in a ring, the diameter of which is large compared with the diameter of the apertures in the shadow mask through which the photo-sensitive material is exposed. As illustrated in Fig. 5 exposure of an emulsion 9 through the aperture 7 of a shadow mask by an annular light source 12 leaves a sharply defined unexposed central area 14<SP>1</SP> which may be smaller than the aperture 7. If the emulsion contains phosphor and a reversal type photosensitive fixing agent, this process may be used to deposit phosphor dots of one or more colours. Alternativelythe process may be used to deposit an opaque area between the phosphor areas, and in this case the emulsion contains light absorbing material and a positive type photosensitive fixing agent. In Fig. 5 the light source comprises a quartz cylinder provided with a conical recess to leave an annular rim 12 which provides the effective light source when the lower end of the cylinder is illuminated. As an alternative a point source may be rotated in a circle. In one example the inner and outer diameters of the source 12 are are 16À0 and 17À2 mm., the diameter of the aperture 7 is 0À32 mm. and the diameter of the phosphor dot is 0À26 mm.
Patent GB-1332144-A (GB)
Title: Transfer printing
IPC: B41M5/382
Filed: 1970-12-18
Abstract: 1332144 Transfers CIBA-GEIGY AG 18 Dec 1970 [23 Dec 1969] 60234/70 Heading B6C A transfer comprises a temporary support of paper, aluminium or regenerated cellulose, a release layer of nitrocellulose mixed with an aminoplast and a transferable design layer of a vinyl resin. The latter may be covered with one or more further resin layers preferably of coloured or transparent acrylic resin. In use the transfer may be applied under heat and pressure to an acrylic or alkyd-melamine resin support surface.
Patent GB-1199248-A (GB)
Title: Improved Seat-Operated Safety System for the Ignition System of a Vehicle Engine
Inventor: BOYAJIAN MYRON JACK
IPC: B60K28/04
Filed: 1968-12-23
Abstract: 1,199,248. Vehicle safety systems. ALLISCHALMERS MFG. CO. 23 Dec., 1968 [2 Jan., 1968], No. 61089/68. Heading B7H. In a seat-operated safety system for interrupting the ignition circuit of a vehicle engine after a predetermined time delay following vacation of the driving seat 39 without opening the ignition switch, a relay 27 having contacts 28 connected in the ignition circuit 13 between the ignition switch 21 and the engine ignition system 22, 23, 24 is energized independently of the ignition switch when a seat-operated switch 38 is closed and de-energized after a predetermined time delay following opening of the seat-operated switch 28. The coil 38 of the relay 27 is included in a relay-operating circuit 31 which is connected to the ignition circuit 13 on the ignition system side of the contacts 28 through a diode 33 and includes a transistor 36. The base circuit 37 of the transistor 36 includes the seat-operated switch 38 and a resistor 44 and is connected to ground through a parallel time-delay capacitor 46 and resistor 47. A bridging circuit 43 including a diode 32 connects the relay-operating circuit 31 to a starting circuit 17 including a push-button starting switch 18 and the coil 19 of a starter relay 15 having contacts 16 in the circuit 17 supplying the starter motor 14. A clamping diode 20 connected to the circuit 17 prevents voltage surges from the coil 19 damaging the diode 32. When the starting switch 18 is closed the vehicle battery energizes the relayoperating circuit through the diode 32 and, provided the seat 39 is occupied and the switch 38 closed, the capacitor 46 is charged and the transistor 36 is turned on to energize the coil 34 and close the contacts 28 thereby completing the ignition circuit 13. When the starting switch 18 is released current flows from the ignition circuit 13 to the relay-operating circuit 31 through the diode 33 to keep the contacts 28 closed. If the driver leaves the seat 39 so that the switch 38 opens, the transistor 36 remains turned on and the coil 38 energized until the capacitor 46 discharges.
Patent GB-1299859-A (GB)
Title: Improvements in or relating to companding encoders and decoders
Inventor: OHASHI YASUTALA
IPC: H03M1/00
Filed: 1969-03-24
Abstract: 1299859 Digital companding NIPPON ELECTRIC CO Ltd 31 Dec 1969 [24 March 1969] 61944/68 Heading G4H A digital companding PCM decoder comprises a memory circuit 26 for storing an input PCM binary code, a code conversion matrix 27 adapted to convert the input code into a modified digitally expanded output code having more bits than the input code, the modified output code consisting of a digitally expanded code of which a predetermined number of most significant zero bits are omitted when the most significant bit of the input code is 0 and of which the same number of least significant bits are omitted when the most significant bit of the input code is 1, a linear decoder 28 adapted to convert the modified output code into an analogue signal, and an adjustable attenuator or amplifier 29 controlled by the most significant bit of the input code to adjust the gain to which the analogue signal is subjected when this bit is 1 and U respectively to higher and lower values respectively whose ratio corresponds to the value of the omitted least significant bits. Besides being used as a PCM decoder, the circuit can also be used in the feedback loop of a PCM encoder (Fig. 4) in which the analogue feed-back signal from 29 is subtracted at summing amplifier 23 from a PAM input signal from 21 sampled and held at 22, the amplifier 23 output producing from comparator 24 a serial PCM signal at output 25 which also actuates memory 26. In operation a code 100000 is recorded by memory 26 and the signal compared with this to determine whether it is greater or less than it. The process is continued for successive bits until the complete PCM signal is built up. The feed back loop produces the compand characteristic of the encoder. This is curve 20-21 in Fig. 2. The output of matrix 27 is a characteristic comprising curve 21, 19 of Fig. 2. In this way the accuracy with which low values of the analogue signal are generated by linear decoder 28 is enhanced. Attenuator 29 converts the characteristic comprising curve 21, 19 of Fig. 2 back into the curve 20, 19. Thus the circuit behaves as a conventional compand circuit except insofar as the digital analogue conversion in the feedback loop is performed with improved accuracy for low amplitudes. Matrix 27 uses NAND circuits and performs the code conversion in Fig. 10 (not shown).
Patent GB-1294307-A (GB)
Title: Heated anaesthetic filter
Inventor: FIRMAN JACK EDWARD
IPC: A61M16/00
Filed: 1968-12-31
Abstract: 1294307 Anaesthetic filters MICROFLOW Ltd 25 March 1970 [31 Dec 1968] 61993/68 Heading A5T A filter for air exhaled by an anaesthetised person comprises a heat-insulating jacket enclosing a gas-impervious box which contains a filter element which may be pleated and has inlet and outlet unions which pass through the jacket, and an electric heating element either embedded in the filter or mounted within the heat insulating jacket. An alarm may be incorporated in the electric circuit to give warning of failure in the circuit.
Patent GB-1292129-A (GB)
Title: Nuclear reactor fuel element
IPC: G21C3/17
Filed: 1969-12-22
Abstract: 1292129 Fuel elements KERNFORSCHUNG mbH GES FUR 22 Dec 1969 [23 Dec 1968] 62262/69 Heading G6C A fuel element for a gas- or steam-cooled reactor includes a can which encloses the fuel and also a cavity acting as a fission gas plenum, a membrane in the form of a non-circular elastic tube being located concentrically within the cavity, the tube having undulating walls and surrounding a central support member, the support member being gas permeable and forming a connection between the tube and a coolant region, the tube being sealed off from the cavity by closure members. In one such fuel element, the can 1 projects beyond the fuel 2 and is closed by a stopper 3, a cavity 4 thus being formed. One end of an elastic, tubular metal membrane 5 is welded to the stopper 3, the other end projecting into the cavity 4 and supporting a closure plate 6. A support body 8 of a porous gaspermeable material such as sintered metal or ceramic is provided between the stopper 3 and the closure plate 6, so that an external coolant may penetrate into the interior 10 of the tubular membrane 5 through a blind bore 11 in the support body 8. The membrane 5 has a triangular cross-section, the sides of which have longitudinal and transverse undulations so that the apices of the triangle are closely fitted against the support body 8. The undulations allow for variations in the diameter of the membrane 5 occurring during operation. The support body 8 has three radial arms with longitudinal and transverse undulations and with arcuate extremities over which the apices of the membrane 5 are closely fitted. The internal gas pressure in the cavity 4 is initially less than the external coolant pressure in regions 7, 10 and the membrane 5 rests against the inside wall surface of the can 1, suitably shaped supporting devices (not shown) being provided to prevent the membrane from being ripped open. The fission gases penetrate the space 4 during operation of the fuel element until the membrane 5 is detached from the can 1, the internal and external pressures then being equal. This pressure balance is maintained until the side surfaces of the membrane 5 are supported against the corresponding surfaces of the support body 8, and once this has occurred the internal pressure is greater than the external pressure. The admissible excess pressure is then only dependent upon the load capacity of the can 1, since the membrane 5 is completely supported by the body 8.
Patent GB-2001726-A (GB)
Title: Securing perforable sheet material
IPC: F16B15/00
Filed: 1978-07-18
Abstract: The device comprises a resilient member (2,3) having a generally U-shaped cross section, from the ends of which pins (4, 5) extend outwardly. In a relaxed position of the device the pins enclose an obtuse angle and when the side arms, of the U-shaped member are flexed inwardly by pressure applied to the flanges the angle enclosed by the pins is reduced. In the flexed position of the device the pins are pushed through the perforable material and into a support base and when the pressure is released the arms tend to return to the rest position forcing the pins into the base,and thus securing the sheet material thereto. Alternatively the relaxed position is with the pins closer together, and lever or plunger means are provided to force the side arms apart into the securing position. The pins may be protected by a flexible or deflectable shield. <IMAGE>
Patent GB-2031631-A (GB)
Title: Refrigerator temperature monitor
IPC: F25D29/00
Filed: 1978-10-16
Abstract: Means for monitoring the operation of a refrigerator or cold room or freezer comprises a temperature sensing device (1) for location in the cold compartment of the refrigerator and connected to an alarm circuit for indicating, by an alarm (6), a preset high temperature, and a circuit which is responsive to the energising of a defrosting electrical heater (7) in the refrigerator and which includes a time delay (4) which is activated by operation of said heater (1) so as to deactivate said alarm for a preset period after activation of the defrosting heater (1). The refrigerator failure alarm is thus not activated during defrosting periods. <IMAGE>
Patent GB-2007149-A (GB)
Title: Rotary Cutter with Helical Blade
IPC: B27G13/04
Filed: 1978-10-25
Abstract: The blade 6 is formed from a flat parallel-faced strip that has been twisted into a helical form, has a relief taper 11 ground along an outer edge thereof, is adjustable for advancement incrementally out of the slot by a screw 10 and is clamped in the slot by a helical wedge 4 and a screw 7. <IMAGE>
Patent GB-2012706-A (GB)
Title: Elevator conveyor
IPC: B65G19/14
Filed: 1979-02-09
Abstract: Elevator conveyor is provided for slurry manure comprising a lift tube (8) along which is driven, such as by a chain (18), flights (22) of the same cross- section as the tube (8) so as to be a sliding fit therein. The apparatus has a bottom inlet 15 and a top discharge chute (17). Supplementary devices include a stone separating overflow trough (24) and means for sensing ambient low temperatures to start the apparatus to delay or avoid freeze-up. The flights preferably move through two spaced parallel tubes (8) of plastics material which are braced to a common metal I-beam (9). The flights have soft peripheral regions. <IMAGE>
Patent GB-2015735-A (GB)
Title: Moving transducer systems
IPC: G01N29/265
Filed: 1979-02-23
Abstract: In an ultrasonic transducer probe having multiple rotating transducer elements (1a, 1b) the transducer outputs are switched in response to sine and cosine signals from a resolver (19). The same signals are used to switch and time the display scan. If the transducers (1) are misaligned a multiple blurred image may result. It is proposed to modify the resolver signals changing the phase of the signals for at least one transducer to bring the display signals into registration. In one example it is achieved by, for at least one transducer element output, mixing a proportion of at least one of the sine and cosine signals with the other. <IMAGE>
Patent GB-2054497-A (GB)
Title: Railway communication link
IPC: H04B3/52
Filed: 1979-03-30
Abstract: To economise on communications apparatus, to reduce the microwave health hazard and to link railway communications with those of the outside world, a common trackside housing 1 is shared by waveguides 2, co-axial cables 3, telephone and video-pair cables 4 for outside-world communications and also by waveguides 5 and co-axial cable 6 for railway communications, which cooperate with relatively movable pick- up probes. Mounting 7 for the housing 1 is shock-absorbing. <IMAGE>
Patent GB-2038295-A (GB)
Title: Closure cap for containers and method for feeding such caps at high speed along a feed channel
IPC: B67B3/06
Filed: 1979-04-04
Abstract: The invention relates to a closure cap 2 for containers, such as bottles, and to a method for feeding such closure caps 2 at high speed along a feed channel 14, 17, each cap 2 having two tongue or tab portions 3a, 3b which form between them a V-shaped space in the plane of a rim portion 10 of the cap 2, each tongue or tab portion 3a, 3b having an end portion 13 which is bent upwardly at 13a, 13b and which ensures that the rim portion 10 of the following cap 2 in the channel becomes engaged under the tongue or tab portions 3a, 3b of the preceding cap 2 as they are moved along the feed channel to prevent the caps 2 jamming in the feed channel. <IMAGE>
Patent GB-2049961-A (GB)
Title: Apparatus for continuous weighing
IPC: G01G11/06
Filed: 1979-04-12
Abstract: In apparatus for continuous weighing a weigh idler assembly (6) including conveyor belt rollers (10) is floatingly mounted on pressure fluid medium suspension bellows (4 & 5) on a main frame structure (1, 2, 3). The bellows are interconnected and connected to the bellows of any similar adjacent weigh idler assemblies and to a measuring bellows which includes a pressure transducer. An alignment transducer (21) is provided and the volume of the fluid in the bellows system can be adjusted to provide for vertical alignment of the conveyor belt. <IMAGE>
Patent GB-2050607-A (GB)
Title: Peak Pressure Indicator
IPC: G01M3/00
Filed: 1979-06-01
Abstract: A peak pressure indicator device comprises a cylindrical gas container (6) sealed at one end (7) and open at the other (8) to a source of fluid pressure. Within the cylinder are an actuating piston (10) which compresses the enclosed gas in response to external pressure changes and a vented follower piston (9) which indicates the maximum distance of travel of the actuator piston. <IMAGE>
Patent GB-2022671-A (GB)
Title: Double glazing unit for a greenhouse
IPC: A01G9/14
Filed: 1979-06-12
Abstract: A hollow glazing panel for use in a building such a greenhouse comprises at least two glazing sheets 2, 3 held in spaced facing relationship e.g. by frame members 16 and spacer members 17, a portion of one side of the panel being open as at 19 to allow free intercommunication between the or each intersheet space 18 and the ambient atmosphere. An infra-red reflecting coating 5 may be applied to the outer face of one sheet 2 of the panel. <IMAGE>
Patent GB-2057816-A (GB)
Title: Frequency control circuits
IPC: G01S13/76
Filed: 1979-08-31
Abstract: A frequency control circuit for use in association with a signal generator 9 in, for example, an R.F. transponder or a frequency agile receiver, comprises a digital frequency discriminator 13 and a random access memory 14, which is addressed by the discriminator. In a calibration mode of the circuit, the memory is filled with samples of a step-wise varying control signal, formed by a cyclic counter 17, at memory addresses selected by the discriminator in accordance with the output frequencies formed by the signal generator as a result of the varying control signal. When an R.F. signal is received, the discriminator selects the memory address corresponding to the frequency of the received signal and the control signal value previously place therein is used to control the frequency of the signal generator. <IMAGE>