baber/WOPTO huggingface dataset:
Patent GB-1394666-A (GB)
Title: Automatic regulat-r
IPC: F16D65/60
Filed: 1972-04-08
Abstract: 1394666 Brake actuating mechanisms AUTOIPARI KUTATO INTEZET 8 April 1972 51242/74 Heading F2E A brake actuating mechanism for an internal drum brake is provided with an automatic wear adjustment mechanism. The brake actuating mechanism comprises a hub sleeve 4 mounted on a brake cam-shaft 3 for rotation therewith and a driving ring 11 and threaded sleeve 14 mounted on the cam-shaft 3 with adjacent ends in abutment and within the hub of a brake control lever 9. One mantle surface of the driving ring 11 is provided with a reversible thread co-operating with a similar thread 12 on the hub sleeve 4 or the hub of the brake control lever 9 and the other mantle surface being splined or grooved (13) and co-operating with a complementary formation 10 on the brake control lever hub or the hub sleeve 4 respectively. The internal mantle of the threaded sleeve 14 is splined or grooved and co-operates with a complementary formation on the hub sleeve 4 and the external mantle comprises a self-locking thread which meshes with a thread of an adjusting ring 18 which forms part of a one way clutch mechanism the adjusting ring 18 being rotatable with respect to the sleeve 14 automatically if, in use, wear of the brake shoes is required to be taken up. The sleeve 14 causes the driving ring 11 due to its reversible thread to change the relative angular position of the brake control lever with respect to the hub sleeve 4. As shown a second part of the one-way clutch comprises the inner ring 21 of a free wheel mechanism which is driven by a stud 32 depending from an arm 33 fixed with respect to the actuating mechanism where wear is to be taken up. A lost motion connection is provided either between the hub sleeve 4 and threaded sleeve 14 (Fig. 1b, not shown) or between the outer ring 29 of the free wheel and the stud 32 (Fig. 1a, not shown) such that normal braking without the need for wear take up takes place without actuating the wear adjustment mechanism. The two parts 18, 21 of the clutch are held in engagement by a spring acting on a row of balls 24, the parts being disengaged on the braking pressure exceeding a predetermined amount such that wear adjustment takes place on the brake release stroke of the mechanism. Manual adjustment may be effected through a shaft 35 and pinion attached thereto. The lever 9 and hub sleeve 4 are spring loaded into their rest positions. In a second embodiment (Figs. 2 to 4, not shown) the clutch is driven by a rod slidable transversely to the axis of the cam-shaft, the rod being actuated on application of the brakes through a linkage attached at one end to an anchor fixed with respect to the part on which the brake actuating mechanism is mounted (Fig. 4, not shown).
Patent GB-1440549-A (GB)
Title: Optimized waveguide coupler
IPC: H01P5/08
Filed: 1974-11-27
Abstract: 1440549 Waveguide couplers for circularelectric mode COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 27 Nov 1974 [28 Nov 1973] 51432/74 Heading H1W A rectangular to circular waveguide coupler includes, in the circular waveguide, an elongated sector-shaped insert effective to suppress modes other than the TE 01  and TE 02  circular-electric modes. Fig. 2 shows the left-hand half of a symmetrical bisection of the coupler in which the narrow wall of a rectangular waveguide 1 (shown displaced) is coupled to a circular waveguide 2 by means of a row of apertures 16 whereby the circular-electric TE 01  or TE 02  mode (depending upon the dimensions of the waveguide) is excited in the circular guide. All other modes are suppressed by a conductive insert 15 which has a sector-shaped section throughout the coupling interval and tapers, at either extremity, to a radial septum. For TE 01  mode propagation the angle of the sector is 60 degrees and for TE 02  mode propagation, it is 90 degrees.
Patent GB-1261610-A (GB)
Title: Environmental chamber devices
IPC: F25B21/02
Filed: 1969-10-22
Abstract: 1,261,610. Refrigerators; heat insulated containers. SIEMENS A.G. 22 Oct., 1969 [25 Oct., 1968], No. 51847/69. Headings F4H and F4U. A refrigerator for preserving blood in Dewar vessels 17 embedded in plastics foam 18 comprises a heat transfer section separated from the environmental chamber by a horizontal heat insulating plate 12 adjacent which a tangential double fan 13 supplies a current of air which circulates in the direction of the arrows 15 around the plate and flows through heat exchangers 10 arranged in the heat transfer section and on the cold side of Peltier cascades 5, the warm sides of which cascades are connected to heat exchangers 11 on the outside of the refrigerator. The plate 12 may have a mirror finish on one or both faces and the Peltier cascades may act as heating elements by current reversal if ambient atmosphere becomes too cold.
Patent GB-1441390-A (GB)
Title: Furnace for reheating slabs or billets
IPC: F27B9/36
Filed: 1972-11-10
Abstract: 1441390 Metal heating furnaces BRITISH STEEL CORP 9 Nov 1973 [10 Nov 1972] 52047/72 Heading F4B A heating furnace for metal workpieces has a plurality of heat sources 12a, 22a, 16a and skid rails 26. Associated with the skid rails are electric induction heating means for applying heat to the under surfaces of the workpieces additional to the heat sources. This additional electrical heating means may be in the form of a soaking hearth 16 with the induction heaters 28 in alignment with the skid rails 26 or alternatively the induction heaters may be positioned adjacent or form part of the skid system itself.
Patent GB-1083477-A (GB)
Title: Transducer
IPC: H04R1/30
Filed: 1965-12-08
Abstract: 1,083,477. Transducers. MOTOROLA Inc. Dec. 8, 1965 [Jan. 6, 1965; June 17, 1965], No. 52051/65. Heading H4J. A tweeter comprises an elongated piezoelectric or magnetostrictive element 14 which is cemented at its respective ends to an elliptical spun-aluminium diaphragm 13 and a frame 24, the element being energized so as to produce longitudinal vibrations. The horn 21 and apertured pressure plate 15 are adjustable to provide a proper loading between the element, the diaphragm and the air. The element has a length #/4 at the highest frequency passed by the tweeter. It is preferably a piezo-electric ceramic body of rectangular, tapered, exponential, gaussian, stepped slab or cylindrical form (Figs. 2-5, not shown). Alternatively, a plurality of elements sandwiched between electrodes may be used (Fig. 6, not shown). If a magnetostrictive element is used it is preferably " biased " by a parallel permanent magnet 30 as to prevent frequency doubling.
Patent GB-1135935-A (GB)
Title: Process and apparatus for the recovery of waste heat
Inventor: WHETMORE HENRY JOHN
IPC: B01J8/06
Filed: 1965-12-08
Abstract: 1,135,935. Waste heat boiler. HUMPHREYS & GLASGOW Ltd. 8 Dec., 1966 [8 Dec., 1965], No. 52086/65. Heading F4A. [Also in Division C5]  Flue gases from a furnace (not shown) used for heating catalyst packed tubes for the continuous catalytic steam reforming of light petroleum hydrocarbons, enter duct 12, then pass over the vertical tubes 1 of a waste heat boiler. They then pass over secondary and primary horizontal tube heaters 2, 3, respectively, for the hydrocarbon reactants, and then a superheater 4 for the process steam. The gases then exit through combustion air heater 14. Adjustable baffles 19 to 23 allow some of the flue gases to by-pass the boiler tubes and other heating surfaces. A vent stack 24 and air vent doors 25 for use in abnormal conditions are also provided.
Patent GB-1318214-A (GB)
Title: Process for producing aluminum
IPC: C22B21/00
Filed: 1970-09-03
Abstract: 1318214 Producing aluminium APPLIED ALUMINUM RESEARCH CORP 3 Sept 1970 [15 Sept 1969] 42148/70 Heading C7D Aluminium is produced by reacting aluminium trichloride with molten manganese in a reactor, the manganese containing dissolved therein a material which is unreactive with other constituents of the mixture and is more soluble in liquid manganese than in liquid aluminium, thereby reducing the tendency of the aluminium formed to alloy with the manganese. The dissolved substance may be bismuth, lead, cadnium, antimony, tin, thallium, zirconium, vanadium nickel, chromium or silver or a halide of one of the foregoing metals, an alkali halide alkaline earth halide or sulphur. The conditions in the reactor may be such as to result in the formation of a manganese chloride layer and an upper aluminium layer on the molten manganese. Manganese chloride may be withdrawn from the middle layer  as liquid or as gas, oxidized, reduced to metal and recycled to the reduction zone. The crosssectional area of the interface between the manganese chloride and aluminium layers is kept small to minimize reaction between the two and aluminium is withdrawn from the upper layer, cooled to precipitate impurities and recovered as product.
Patent GB-1438117-A (GB)
Title: Radiation detectors
IPC: H01L31/024
Filed: 1972-11-15
Abstract: 1438117 Radiation detector UNITED KINGDOM ATOMIC ENERGY AUTHORITY 8 Oct 1973 [15 Nov 1972] 52676/72 Heading H1K A radiation detector assembly comprises a radiation detector 2, detector cooling means 3, 4, means for detachably securing the detector 2 to a chamber 6, a housing 8 enclosing the detector 2 and having an aperture 9 aligned with the radiation sensitive part 10 of the detector 2, a window 11 outside the housing 8 and also aligned with the radiation sensitive part 10, and a closure member 12 movable across the aperture 9 to close the housing 8 and isolate the detector 2 from the atmosphere. The housing 8 includes a bellows 14 and is mounted on a flange 13 having threaded blocks 27 which traverse threaded rods 28 when they are rotated to move the detector into or out of a tube 23 which holds the window 11. The housing is evacuable using a pump 26. The detector is a Si-Li detector cooled with liquid nitrogen through a metal rod 3.
Patent GB-1135216-A (GB)
Title: A process for the production of chlorinated nitrogen heterocyclic compounds
Inventor: HOLTSCHMIDT HANS
IPC: C07D215/18
Filed: 1965-12-14
Abstract: 1,135,216. Chlorinated nitrogen-containing heterocyclic compounds. FARBENFABRIKEN BAYER A.G. 14 Dec., 1965 [16 Dec., 1964], No. 53060/65. Heading C2C. [Also in Division A5] The invention comprises polychlorinated indolene and quinoline derivatives of the general formula in which R represents a -CCl 2 - or -CCl = CClgroup and z is a whole number from 1 to 4. These and other aromatic tertiary amines may be made by heating a compound of formula in which R<SP>1</SP> and R<SP>5</SP> are hydrogen, chlorine or a C 1 -C 3  perchlorinated alkyl radical, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen, chlorine, a C 1 -C 3  perchlorinated alkyl radical or the group -N=C(C1)Y (R<SP>5</SP> and R<SP>1</SP> not both being hydrogen) or two adjacent groups from R<SP>1</SP> to R<SP>5</SP> can form a fused benzene ring which itself can carry substituents R<SP>3</SP>-R<SP>5</SP>; and Y is chlorine or a C 1 -C 3  perchlorinated alkyl radical, to a temperature of 250-800 C.
Patent GB-532252-A (GB)
Abstract: 532,252. Signal lamp reflectors mounting. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. July 19, 1939, No. 20987. Convention date, March 29. [Class 75 (ii)] In a signal lamp of the searchlight type described and claimed in Specification 492,402 a light unit A comprising an elliptical reflector 20 and a light source 22 is detachably mounted in a box-like casing 1 by the engagement of sockets 33 formed in the three arms 31 of the reflector housing 21 with the spherical heads 34 of studs 36 adjustably screwed into bosses on the casing 1. The sockets are formed with saw cuts 41 to receive springs 42 which are forced apart by the heads 34 as. the housing is snapped into position or withdrawn by pressure on its handle 48. The heads 34 are formed with hexagonal recesses 44 for the reception of an adjusting wrench and the studs are locked in position when adjusted, by nuts 46 and washers 47. One of the arms 31 is shorter than the other two to ensure correct instalment of the reflector. The lamp bulb 22 is mounted with its filament at a focal point of the reflector 20 in a socket 27 carried by a spring-pressed plate 26 which can be adjusted by nuts 25 on studs 23 carried by the housing 21. The light rays are converted into a signal beam by a lens unit L comprising two spaced plano-convex lenses 9, 10 mounted on a tubular casing 11. The colour of the beam may be changed by a spectacle arm 51 carrying green, yellow and red screens 55 operable by polarized electro responsive means between clear glass windows 53, 54.
Patent GB-1481364-A (GB)
Title: Semiconductor charge coupled device structures
IPC: H01L21/00
Filed: 1974-12-10
Abstract: 1481364 Charge-coupled devices FAIRCHILD CAMERA & INSTRUMENT CORP 10 Dec 1974 [8 Feb 1974] 53399/74 Heading H1K A self-aligned 2-phase charge-coupled device has barrier regions 44, 46, 48, 50 ion implanted into the substrate 20 through the gaps between a first set of spaced electrodes 43, 45, 47, 49, 51, a second set of electrodes 84, 86, 88, 90 subsequently being deposited between the electrodes of the first set. In the device shown the substrate 20 is of P type Si, B implantation being effected to form the barrier regions 44, &c. The gate insulation comprises a layer 26 of silicon nitride or aluminium oxide on a SiO 2  layer 24. Both sets of electrodes are of P-doped polycrystalline Si but in a modification the second set 84, &c. is of Al. SiO 2  layer 53 covers the electrodes 43, &c. except where they are contacted by conductive layers 101-104 which connect each first electode 43, &c. to an adjacent second electrode 84, &c. In a modification the layers 101-104 are omitted and the second electrodes (84<SP>1</SP>), &c. (Fig. 12, not shown) directly contact the corresponding first electrodes (45<SP>1</SP>), &c. through windows opened in the oxide layer (53<SP>1</SP>) prior to deposition of the second electrodes (84<SP>1</SP>), &c.
Patent GB-1307427-A (GB)
Title: High-tension gas pressure cable
IPC: H01B7/00
Filed: 1970-11-10
Abstract: 1307427 Electric cables VEREINIGTE DRAHT-UND KABELWERKE AG 10 Nov 1970 [13 Nov 1969] 53424/70 Heading H1A A high-tension sodium core cable for laying in gas pressurized pipe 6 comprises a sodium core 1 surrounded by insulation 2 e.g. polyethylene, which in turn may be surrounded by an electrically conducting shield 3. A three-phase cable, as shown, consists of three such sodium core cables armoured by the flat wire 5, the space between them being filled with a fluffy or fibrous insulating material 4, e.g. glass wool. A gap 7 left in the steel pipe 6 is filled with a gas under pressure, for example, nitrogen at 15 atmospheres.
Patent GB-1488850-A (GB)
Title: Electronic identification system
IPC: B60R21/00
Filed: 1974-12-11
Abstract: 1488850 Interrogator-responder systems RCA CORPORATION 11 Dec 1974 [27 Dec 1973] 53541/74 Headings H4L and H4A A responder (tag 26) for an object (e.g. a vehicle) to be identified incorporates a harmonic generator and radiator 30 which is activated by signals at a predetermined frequency (e.g. X band) radiated from a base transmitter 10 to produce, e.g. the second harmonic. At the tag a binary identification code is contained in a read only store 60 and a shift register 118 in an encoder 62 is located with this code in response to signals for one operating mode and is read out serially to pulse modulate the harmonic radiator in response to signals for another operating mode. A mode selection control 116 operates in response to count signals from a clock 36 to alternate between the two modes. The pulse modulated harmonic signals are retransmitted so as to be received and detected at a base receiver and passed to an output processing means, which might be a decoder 56 activating a display, a computer forming part of a road pricing system (Fig. 10) or the control system of a door lock (Fig. 11). Various arrangements within the tag may be provided, depending on whether the signals from the base transmitter are continuous, pulse or amplitude modulated and on whether the power supply is provided within the tag or developed from the received signal. If the transmitted signal is pulse modulated, the tag (Fig. 5) detects the modulation envelope and applies this as the clock signal to the encoder. The tag may contain a threshold detector (Fig. 6) so that only received signals of the predetermined frequency will provide sufficient detected amplitude to exceed the threshold and such output is used to energize the encoding arrangements. The tag may contain transformers stepping up the r.f. voltage before detection so that sufficient voltage to energize the encoder may be derived from a continuous wave impinging signal (Fig. 7, not shown). If the impinging wave is amplitude modulated, this may be detected and the envelope applied to a further transformer (Fig. 8, not shown). The system shown in Fig. 1 may be used in a road pricing system (see also Fig. 11). Signals reflected from the tag on a vehicle at the fundamental frequency are detected at 48 and applied to a vehicle presence indicator showing all vehicles within the system, while the harmonic signal passes via a high pass filter 50 to detector 52 and thence to a decoder 56 which establishes that the vehicle is authorized to be in the system. Suitable circuitry for the decoder 56 is explained in detail (Fig. 9). Antenna assembly (Fig. 1a) of the tag comprises a flat printed circuit network having 16 dipoles with a corporate feed tuned to the geometric mean of the transmitted frequency and the selected harmonic. The structure is etched in halves on opposite sides of the board, and a back cavity achieves a unidirectional radiation pattern. The antenna feed includes a Schottky diode harmonic generator 30À1, striplines 28À1, 30À2, 30À3, 30À5, capacitor 28À2 and RF choke 30À6.
Patent GB-1125597-A (GB)
Title: Improvements in or relating to signal converters
Inventor: CRAGG WILLIAM DONALD
IPC: H04R19/04
Filed: 1965-12-17
Abstract: 1,125,597. Microphone, pulse modulation and transistor amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. 17 Dec., 1965, No.53620/65. Headings H3T, H4J and H4T. A condenser microphone controls a time constant in a free-running multivibrator circuit including transistors, T1, T2 to vary the markspace ratio of the output pulses. The-microphone is of the push-pull type so that excitation of the microphone changes the capacitance of C1 and C2 in opposite senses. The output of the multivibrator is fed to an integrating circuit RC. Alternatively, the width-modulated pulses may be amplified and transmitted in pulse form before integration.
Patent GB-1134873-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/34
Filed: 1965-12-21
Abstract: 1,134,873. Photographic silver halide emulsions. EASTMAN KODAK CO. Dec.21, 1965 [Dec.21, 1964], No.54164/65. Heading G2C. A photographic gelatino silver halide emulsion contains as a hardener a halogeno aldehyde acid such as mucochloric or mucobromic acid and as an antifoggant a compound which has the formula: - where R is hydrogen, alkyl, aryl or aralkyl, provided not more than one R is hydrogen, or a monoacyl or diacyl derivative thereof, or which is maleic acid hydrazide or phthalic acid hydrazide. Compounds of the above formula which are specified are 1-phenyl urazole, 4-phenyl urazole, 4-naphthyl urazole and 4-ethyl urzole.
Patent GB-1357239-A (GB)
Title: Apparatus for gripping and cutting weft in a shuttle-less loom
IPC: D03D47/00
Filed: 1972-11-27
Abstract: 1357239 Weft cutters LEBOCEY INDUSTRIE 27 Nov 1972 [26 Nov 1971] 54792/72 Heading D1E A weft cutting and clamping device in a shuttleless loom comprises two cutting blades 5, 6 and two clamping members 3, 4 with interengaging clamping surfaces 3, 4, all being rotatable on a shaft 2 by a pair of pins 9, 10 which engage recesses in the blades 5, 6 and members 3, 4, mounted at the end of a lever 11 pivoted in synchronism with the loom. The clamping member 4 is provided with a recess 14 which is wider than the pin 10 and a leaf spring 15 engaging an adjustable abutment 16. Thus in operation a weft 8 is clamped and held resiliently before and during the cutting action. A recess 3 2  in the clamping member 3 prevents squashing of the cut weft thread. (For Figures see next column)
Patent GB-1487640-A (GB)
Title: Hygiene appliance for delivering an intermittent liquid jet
IPC: A61H13/00
Filed: 1974-12-19
Abstract: 1487640 Teeth cleaning and gum massaging device 4 P Ltd 19 Dec 1974 [21 Dec 1973] 55312/74 Heading A5R [Also in Division F1] The disclosure is substantially identical to that in Specification 1487639, but the claims are concerned with a dental appliance comprising a liquid pump composed of a working chamber 4, Fig. 2, connected to an outlet pipe 5 and having a motor-driven piston 6 therein, an inlet chamber 2 connected to an inlet pipe 3, and an inlet valve 8, 9 located in a connecting opening between said chambers, the appliance further comprising a liquid reservoir 12, Fig. 1, connected to the inlet pipe, and a spray nozzle 17 connected to the outlet pipe, the liquid reservoir being adapted to be connected by the inlet chamber to an upright open-topped air-vent pipe 19 branched off from the inlet chamber.
Patent GB-1163310-A (GB)
Title: Improvements in Antennas, particularly in Antennas for Surveillance Radars
IPC: H01Q3/26
Filed: 1966-12-09
Abstract: 1,163,310. Aerials. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 9 Dec., 1966 [23 Dec., 1965], No. 55341/66. Heading H4A. In an aerial system comprising a primary feed illuminating a double curvature reflector, that is, a reflector having two curved portions each governed by a separate law, the primary feed has means for controlling the radiation direction from the reflector while maintaining the or each phase centre of the feed substantially in a fixed position relative to the reflector. In one embodiment a horn-type primary radiator 1, Fig. 4a, is tiltable about a horizontal axis 15 passing through its phase centre, so that its direction of maximum radiation may be aimed either towards the lower parabolic portion of a reflector 2, or towards the upper convex portion thereof. The horn is fed from a fixed waveguide or coaxial line 13 via a flexible connection 14. In another embodiment a primary source is constituted by three fixed horn or dielectric rod radiators 10, 11, 12, Fig. 5, the radiators 11, 12 being symmetrically disposed about the radiator 10. The three radiators are fed in parallel, but equal and opposite phase shifts may be imposed upon the radiators 11, 12 by adjustable phase shifters 5, 6 so that the direction of maximum radiation towards a reflector 2 may be aimed as required. The shape of the radiation pattern of the aerial system of a radar installation may be adjusted by the means described, to reduce interference from jamming or ground reflections. Such adjustment may be effected during rotation of the aerial system, at appropriate angles, using servo-control of the means for tilting the direction of maximum radiation of the primary source thereof.
Patent GB-1099080-A (GB)
Title: Finned tube walls
IPC: F22B37/10
Filed: 1965-12-31
Abstract: 1,099,080. Welding by fusion. VEREINIGTE KESSELWERKE A.G. Dec. 31, 1965 [April 22, 1965], 55346/65. Heading B3R. In making a tube wall by submerged arc welding, tubes are welded to the opposite sides of a strip to form a unit and such units are welded to the opposite sides of a further strip and so on, the welding being effected by a stationary welding machine through which the tubes and strip(s) are fed. If the wall is to have an odd number of tubes the central unit is a tube to the opposite sides of which strips have been welded. The tubes 7, and an intervening strip supported on a water-cooled copper backing roll 13 are fed by a pair of sizing and straightening rolls 8 under the crossed electrodes 12 of a submerged are welding machine, the welds being made in a single pass. In a modification the welds are made from each side in turn and the backing roll 13 is replaced by a vertically adjustable slideway.