baber/WOPTO huggingface dataset:
Patent GB-330001-A (GB)
Title: An improved advertising device
IPC: G09F19/18
Filed: 1928-12-05
Abstract: 330,001. Palmer, W., and Dongray, A. Dec. 5, 1928. Elements moving always in one plane, rotating; optical apparatus, applications of.-A clockwork or other motor intermittently rotates a sign bearing disc through a stressed spring which on release rotates a pin carrying, disc actuating a multiple armed spider fixed to the sign bearing disc, the signs being optically projected or viewed direct. A clockwork motor 2 through gearing 2<1> stresses a spring 3 having its ends fixed to the shaft 1 and to a pin carrying disc 4. Pins 5 on the disc are held by a detent arm 6 loaded by a weight or spring 8. When the spring overcomes the load on the detent arm, the disc 4 rotates until one of the pins 10 strikes a multi-armed spider 11 and rotates it one step, that is, until the detent arm falls and a stop 15 thereon engages the spider. The spider is fixed on a shaft 12 carrying the sign bearing disc 13 provided with transparencies &c. 14. The signs may be directly viewed or the apparatus may be fitted with a projector 21.
Patent GB-488269-A (GB)
Title: Improvements in or relating to frequency changer circuits for use in radio and like receivers
IPC: H03D7/20
Filed: 1936-12-31
Abstract: 488,269. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Grundmann, G. L.) Dec. 31, 1936, No. 35890. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 1, 1937.] [Class 40 (v)] In a superheterodyne receiver for very high frequencies the frequency changer comprises a valve with the local oscillation applied to a grid which is operated at high potential while the anode is at low potential so that a virtual cathode is formed adjacent the anode. The incoming signal is applied to the anode which with the virtual cathode forms a diode, an intermediate frequency transformer 14 being included in the anode circuit. The Figure shows a triode 5 energized from a source 10, 11 and by an oscillator 20, and followed by an amplifier 34. A half-wave antenna 32 is connected to the anode 8. Adjustment of the tappings 16, 19 controls the spacing of the virtual cathode from the diode anode 8.
Patent GB-397359-A (GB)
Title: Improvements in ropeways
IPC: B61B12/02
Filed: 1932-12-19
Abstract: 397,359. Rope railway. BLEICHERTTRANSPORTANLAGEN GES., 15, Bleichertstrasse, Leipsic, Germany. Dec. 19, 1932, No. 35970. Convention date, Dec. 18, 1931. [Class 104 (ii).] In a rope railway the carrier rope a supports a rail c consisting of a number of lengths rigidly connected by joint plates b to form a continuous girder between consecutive supports. The rail may be of inverted U shape, and is joined to saddles at the supports.
Patent GB-1273466-A (GB)
Title: Improvements relating to semiconductor devices
IPC: H01L23/482
Filed: 1970-07-24
Abstract: 1,273,466. Semi-conductor devices. MONSANTO CO. 24 July, 1970 [23 March, 1970], No. 35974/70. Heading H1K. [Also in Division C4] The disclosure is substantially the same as that of Specification 1,273,465, but the claims relate to a method of applying an ohmic contact to an N-type semi-conductor body comprising the steps of sequentially applying layers of Sn, Au, Ni and Au to the body and heating to alloy the metal layers with the semi-conductor material so as to form an N+layer and an Nirich layer thereon. In a modification alloying first takes place after only the first two layers of Sn and Au have been applied, the remaining Ni and Au layers being applied subsequently and optionally being alloyed with the existing structure in a second alloying stage.
Patent GB-925367-A (GB)
Title: Improvements in or relating to circuit arrangements for operating electric dischargelamps
Inventor: CATES JULIUS
IPC: H05B41/232
Filed: 1960-10-20
Abstract: 925,367. Supply circuits for electric discharge lamps. GENERAL ELECTRIC CO. Ltd. Oct. 20, 1961 [Oct. 20, 1960], No. 36082/60. Class 38 (4). A circuit arrangement for operating at least one heatable cathode electric discharge lamp 5 from a low voltage high frequency A.C. supply is provided with the series combination of a capacitor C2 and an inductor L2 connected in series with the discharge path of the lamp 5 so as to prevent rectification due to a lamp fault, the capacitor - inductor combination being arranged to be at or near resonance at the frequency of the A.C. supply. The combination may alternatively be connected between the ballast inductor L1 and the lamp or the elements may be connected one at each side of the lamp.
Patent GB-1108743-A (GB)
Title: Improvements relating to flue linings
Inventor: LISNEY TRAVERS
IPC: E04F17/02
Filed: 1964-09-03
Abstract: 1,108,743. Concrete etc. pipes. RED BANK MANUFACTURING CO. Ltd. 19 Oct., 1965 [3 Sept., 1964], No. 36211/64. Heading F2P. [Also in Division F4] A refractory flue unit (Division F4) comprises inner and outer spaced tubular bodies 1, 2 interconnected by longitudinal ribs 3 spaced around the same and integral therewith. The upper ends of the inner and outer bodies are formed with a socket 5, 7 to receive the complimentary portion of the above adjacent unit when the units are assembled to form a flue lining or a self standing chimney.
Patent GB-993213-A (GB)
Title: An improved distributor for granular and like materials
Inventor: HARGREAVES DEREK BURTT
IPC: A01C15/00
Filed: 1961-10-10
Abstract: 993,213. Distributing granular material. W. HARGREAVES & CO. Ltd. Oct. 8, 1962 [Oct. 10, 1961], No. 36280/61. Heading A1D. In a distributer for granular and like materials in which the forward edge of a hopper is used as a gauge for varying the rate of delivery, a sieve 11 is incorporated so as to constitute a bracing member for the hopper. The sieve is centrally disposed of the hopper opening and is attached to the front and rear walls of the hopper. In a modification the sieve may consist of a frame arranged to carry a sieve element which would be attached by screws or turn-buttons. Specification 887,627 is referred to.
Patent GB-861985-A (GB)
Title: Improvements in or relating to the preparation of photographic emulsions
Inventor: PAUW ALFONS JOZEF
IPC: G03C1/04
Filed: 1956-10-10
Abstract: 861,985. Photographic emulsions. GEVAERT PHOTO-PRODUCTEN N.V. Oct. 10, 1957 [Oct. 10, 1956], No. 36529/59. Divided out of 861,984. Addition to 819,039. Class 98(2) A photographic gelatino silver halide emulsion is prepared by forming the silver halide in an aqueous medium in the presence of 2 to 25 parts by weight of gelatin per 100 parts of silver nitrate, the gelatin not exceeding 3 per cent by weight of the water present,. according to the parent Specification, adding sodium cellulose sulphate and then proceeding again according to the parent Specification by pouring the dispersion into an organic liquid miscible with water, washing the precipitate so obtained, and redispersing it in the desired amount of binder. The organic liquid may be methyl acetate, ethyl acetate, methanol, ethanol or mixtures of these. The emulsions may be sensitized with sulphur compounds or with compounds of heavy metals as described in the parent Specification; The examples are similar to those given in the parent Specification, except that sodium cellulose sulphate is added to the silver halide suspension before precipitation with acetone. Specification 789,823 also is referred to.
Patent GB-1470201-A (GB)
Title: Multi-sensor radiation detector system
IPC: G21C17/108
Filed: 1974-08-20
Abstract: 1470201 Detecting neutrons COMBUSTION ENG Inc 20 Aug 1974 [24 Aug 1973] 36594/74 Heading G6P A probe 30 for neutron radiation detection comprises a self-powered detector 26 and an ion or fission chamber detector 28 connected electrically in parallel. Detector 26 comprises a rhodium or vanadium emitter electrode 48, insulator 50, and outer cylindrical electrode 52. Detector 28 comprises a similar outer electrode 54 coated internally with fissile material, a space 56 containing helium, and an inner electrode 58. The outer and inner electrodes of the two detectors are joined and connected to coaxial cable 34 fixed inside drive cable 36. The coaxial cable leads to read-out circuitry 32 comprising an ammeter 68 and a switch 72 for introducing battery 70 into circuit when readings are taken from detector 28. The probe may be inserted into, and withdrawn from, the core of a nuclear reactor, through a narrow tube, in order to calibrate fixed in-core detectors or locate neutron flux peaks.
Patent GB-409833-A (GB)
Title: Improvements in and relating to casting reels used in angling
IPC: A01K89/01
Filed: 1932-12-28
Abstract: 409,833. Fishing. LIGHT CASTING REEL CO., Ltd., 36, Sunbridge Road, Bradford, Yorkshire, and BAKER, M. F., 26, Hinstock Road, Handsworth Wood, Birming- ham. Dec. 28, 1932, No. 36631. [Class 48.] A brush R3 for regulating the slip of the line drum D on the fixed spindle S is locked by a spring pressed lever R which engages teeth D<1> on the upper surface of the drum. The bush is released by tilting the lever. Specifications 9388/05, 187,124, [both in Class 48], and 361,601, are referred to.
Patent GB-1184379-A (GB)
Title: Improvements in or relat ing to Combustion Devices
Inventor: WIGG LESLIE DESMOND
IPC: F23R3/24
Filed: 1967-08-10
Abstract: 1,184,379. Gas turbine combustion apparatus. MINISTER OF TECHNOLOGY. Aug. 8, 1968 [Aug.10, 1967], No. 36855/67. Heading F1L. A combustion device for forming a flame stabilization zone in a swiftly moving gas stream flowing through a duct, such as the reheat duct 1 of a gas turbine engine, comprises, Fig. 1, concentric baffles 3, 4 defining a divergent annular channel therebetween and a hollow annular vane 5 upstream of the baffles 3, 4 which can be supplied with air under pressure to issue through holes in the vane and deflect the gas flow through the duct away from the divergent channel and around the baffles. In normal circumstances, no air is supplied to the vane 5 and the gas flows past the vane and baffles with little disturbance. When reheat is required, fuel is injected upstream of the stabilizing device and air tapped from the engine compressor or other source is supplied to the vane 5. In one arrangement, the latter is made from a circular tube 5a with a rear fairing 56, in which case the air issues through radial holes 6, 7 in the vane. In a different arrangement, the vane 5 is of one piece construction and the air issues through inclined holes 8, 9. The included angle between the baffles 3, 4 may be 20 or 30 degrees. In a modification, Fig. 2, the outer baffle 3 is arranged as before but a hollow annular vane 11 forms part of the inner baffle 10, air issuing through holes 12, when required. In further modifications, the air holes in the vanes can be replaced hy continuous slots, or the baffles can be curved or streamlined.
Patent GB-1145290-A (GB)
Title: An improved process in the preparation of pigment via plasma-jet
IPC: C01G23/07
Filed: 1966-04-25
Abstract: 1,145,290. Producing metal oxides. AMERICAN CYANAMID CO. 25 April, 1966 [10 Nov., 1966], No. 36925/66. Heading C1A. Finely divided metal (including silicon) oxides are prepared continuously by reacting a freeoxygen containing stream and at least one stream of at least one vaporous metal salt in a reaction zone wherein at least one of the reactant streams is mixed with a stream of gaseous fluid at a temperature in the range 3000-12,000 C., the reactant streams are mixed in a dome-shaped mixing zone having no geometrical discontinuities in its connection to the reaction zone, the streams flowing into the mixing zone at an angle with respect to each other of between 25 and 160 degrees and the reactants are maintained in the reaction zone for a period of 0À001-1 second. The vaporous metal salt is preferably a silicon or titanium tetrachloride, the titanium tetrachloride optionally containing 0À16-6À3% of aluminium chloride based on the weight of product titanium dioxide. Zr is also mentioned. The process may be carried out in apparatus shown in the Figures embodying a preferred, spherical mixing zone. The gaseous fluid is supplied through ports 13, 20 to the plasma generators 10 where the fluid is converted to a plasma between the electrodes 11 and 12 and 18 and 19. The reagent streams are injected tangentially into the plasma streams through parts 15, 22, the streams flow through a constriction 17, 24 and pass into the hemispherical mixing zone 25 at an angle # with respect to each other. The mixing zone 25 is identical in radius to the reaction vessel 26 and there is no discontinuity between the two so that the reaction mixture flows into the reaction chamber and the oxide product does not build up on the walls. The oxide formed is cooled in heat exchanger 27 and released through pipe 28 to collecting means.
Patent GB-786778-A (GB)
Title: Improvements in or relating to machines for sonic or supersonic flight
IPC: B64C30/00
Filed: 1956-03-09
Abstract: 786,778. Aircraft. DELANNE, M. H. March 9, 1956, No. 36929/54. Class 4. A supersonic aircraft comprises a fuselage and two wings spaced apart longitudinally and vertically, wherein the rear wing is disposed with its leading edge extending no further forward than the plane of the shock wave issuing from the zone of zero pressure on the front wing, and with its zone of zero pressure extending no further rearward than the plane of the shock wave issuing from the trailing edge of the front wing. In Fig. 1, the wings 1 and 2 may be of rectangular plan. The horizontal interval d between the quarter chord points and the vertical interval e are determined by wind tunnel tests for minimum drag at a predetermined speed. The front upper wing may be set at a positive angle of incidence, and the other wing at a negative angle. Each wing may be triangular in plan, the outer portions of the rear wings being hinged about a spanwise axis to act as elevons.
Patent GB-339485-A (GB)
Title: Improvements in brushes
IPC: A46B7/04
Filed: 1929-12-03
Abstract: 339,485. Levinson, R. Dec. 3. 1929. Curved handles; holders with recessedback retaining-devices for brushes. - A brush, in which a member carrying bristles is detachable from a handle, has an undercut housing 11 into which the brush member 14 slides and can be reversed when worn. The sides and ends of the brush member are recessed to accommodate a U-shaped wire spring 16 located in holes 18 and having bowed side portions 17 to grip the brush member and retain it in position. Other means of securing the brush member may be used such as a flat spring 20, Fig. 5, riveted at 21 and having a locking catch 22.
Patent GB-1057122-A (GB)
Title: Improvements in remote telephone extension system
IPC: H04M1/725
Filed: 1963-09-20
Abstract: 1,057,122. Automatic exchange systems. SIBANY CORPORATION. Sept. 20, 1963 [Sept. 21, 1962], No. 37075/63. Heading H4K. A telephone sub-station is provided with a radio transmitter 11 and receiver 12 for communication with a portable transceiver set 13 so that the latter is enabled to receive calls from the exchange, the connection to the exchange line being controlled by relays located at the sub-station. Ringing and voice signals are fed via transformer 16 to the transmitter 11 which preferably generates the carrier only when signals are received. The transmitter part of the set 13 is turned on by the operation of a push-button 20, the carrier generated being different from that of 11. On the arrival of speech signals at the receiver 12, a sensitive relay W energizes by way of a rectifier 29, and a transistor 30 becomes conducting. It might be arranged for relay W to be controlled by the unmodulated carrier. Relays X, Z operate followed after a short delay by relay V. In consequence the exchange line is looped through a resistance R and varistor to give the reply signal, speech signals from 12 are connected to the line and relay W is connected across it. When the caller hangs up, dialling tone from the exchange energizes relay W which, since V is operative, connects up relay Y to establish the release condition. In a modification, Figs. 2, 3 (not shown), the couplings to the transmitter 11 and receiver 12 are made through a pick-up coil mounted near the induction coil of the telephone. A dummy member rests on the cradle and is raised sufficiently by the energization of a solenoid controlled by relay Z to release the cradle contacts and give the reply signal.
Patent GB-838507-A (GB)
Title: Improvements in or relating to the batch dispensing of planar articles
Inventor: MCCOMISKEY REGINALD WILLIAM
IPC: A21C15/00
Filed: 1956-12-06
Abstract: 838,507. Batching articles for packaging. CRAWFORD & SONS Ltd., W. March 6, 1958 [Dec. 6, 1956], No. 37364/56. Class 94(1). Planar articles such as biscuits are arranged in batches by being fed forward continuously by known means 12 to a rotating worm device 13 which passes them, say two at the time, to its other side for accumulation against a spring- loaded support 17 in a cradle 61. When a desired number has collected, the worm ceases to rotate and flaps open at the base of the cradle to discharge the batch into a trough 24 of a conveyer 23 for taking them to a wrapping machine. Several lanes of biscuits may be batched simultaneously each by apparatus as described and the batches discharged into a single conveyer 23.
Patent GB-803350-A (GB)
Title: Improvements in or relating to feeders for aerial systems
IPC: H03H2/00
Filed: 1955-12-30
Abstract: 803,350. R.F. couplings. GENERAL ELECTRIC CO., Ltd., and FAIRBAIRN, E. P. Dec. 31, 1956 [Dec. 30, 1955], No. 37495/55. Class 40 (7). In order to prevent the radiation of harmonics of the operating frequency a radio transmitter is coupled to its associated aerial by means of a two-conductor transmission line having loading coils spaced along its length. The feeder is designed to act as a low-pass filter with a cut-off frequency fc, where the operating frequency or frequency band of the transmitter lies between 0.6 fc and 0.8 fc. In one embodiment using an unbalanced feeder 1, 2, all the loading coils 3 are in the line 1. The shunt capacitance is provided by the distributed capacitance of the line and the spacing of the coils 3 and their value is arranged to give the required cut-off frequency. To make the feeder impedance purely resistive at the operating frequency the end parts of the feeder are arranged to be half # sections. The loading coils may be strung in the feeder in a similar way to strain insulators and may be moulded in plastic material. Where a balanced. feeder is used loading coils are provided in each line.
Patent GB-1195057-A (GB)
Title: Nozzle Constructions in Induction Air Conditioning Units.
IPC: F24F1/01
Filed: 1967-08-15
Abstract: 1,195,057. Ventilating apparatus. CARRIER CORP. 15 Aug., 1967 [2 Sept., 1966], No. 37536/67. Heading F4V. An induction ventilating unit comprises a plurality of spaced nozzle members 5 each having integrally formed therewith cylindrical nozzles 17, 18 inclined from the vertical respectively toward the surface 3<SP>1</SP> of a primary air plenum chamber 3 and toward a heat exchanger 4. Each member 5 is moulded from flexible polyethylene or polyvinyl chloride and includes two quadrant shaped end walls joined by an arcuate wall and an upper wall 14 in which the nozzles 17, 18 are formed, the free ends of the walls forming an inlet which is fanged and sealed with an adhesive in a hole in the wall 3<SP>1</SP>.
Patent GB-1072175-A (GB)
Title: A sawing machine
IPC: B23D45/02
Filed: 1965-09-02
Abstract: 1,072,175. Sawing. A. EISELE, [trading as CHR EISELE MASCHINENFABRIK]. Sept. 2, 1965 [Nov. 7, 1964], No. 37540/65. Heading B5L. A circular sawing machine of the type in which the work is positively clamped and the saw blade is fed into the work comprises means 26 for reciprocating a holder 20 along elongated ways in a support 10, a carrier 42, Fig. 3 (not shown), mounted in the holder for rotation about a first axis parallel to the ways, a prime mover 38 and a transmission mounted on and rotatable with the carrier, and an output shaft 34 forming part of the transmission and having an axis which is normal to and intersects the first axis. The means 25 consists of a pinion which is rotatable by a hand lever 30 and engages a rack 24 on a slide 22 forming part of the holder 20 which is thereby reciprocated on the vertical ways of the support 10. The holder is formed with an annular sleeve 40 within which the carrier 42 is axially located by flanges 46, 48 and can be locked in selected angular positions by locking devices 52 releasably urged by screws 58 into a V-shaped groove 54. A vertical shaft 63, Fig. 4 (not shown), is located in bearings 64, 66 in the carrier 42. The lower end of the shaft has a worm 102 engaging a wheel 100 on a shaft 92 carrying a gear 96 meshing with a second gear 98 on the output shaft 34 carrying the saw blade 32 which is located in the plane containing the axis of the carrier 42. The upper end of the shaft 62 is connected by pulleys 70, 74 and V-belts 76 to the shaft 72 of the motor 38 which is adjustable to vary the tension in the V-belts. In operation, the work is clamped on a table 14 and the locking devices 52 released to enable the saw to be adjusted to cut transverse or mitre cuts on the work, the devices then being re-tightened. The lever 30 is then operated to move the holder 20 along its ways to effect cutting of the work. The speed of the saw may be adjusted by varying the ratio between the gears 96, 98 or by varying the transmission ratio between the pulleys 70, 74. In other embodiments, the transmission between the motor shaft 72 and shaft 62 is effected by gears or the shaft 72 is directly coupled to the shaft 62.
Patent GB-1098624-A (GB)
Title: Tape tensioning device for magnetic tape recorder
Inventor: FINDEISEN HEINZ HELMUTH
IPC: G11B27/13
Filed: 1963-09-24
Abstract: 1,098,624. Eddy-current brakes. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. July 2, 1964 [Sept. 24, 1963], No. 37597/63. Heading H2A. [Also in Division G3] A constant tension device for use in the tape circuit of a magnetic tape recorder to maintain a constant tension in a selected part of the tape circuit comprises a roller laterally movable on an arm, movement of which is resisted by a spring, a transducer producing a signal in dependence on the lateral position of the roller, there being a guide roller at the commencement of the part of the tape circuit associated with a magnetodynamic brake controlled by the signal so as to maintain the tension in the selected part at a constant level. As shown, the magnetodynamic brake comprises a ferromagnetic framework 30 comprising an upper portion having an annular recess 31 in which an excitation winding 32 is housed, and an inward extension 33 which is partially cut away to leave four projecting portions 42. A spindle 39 carries a tape roller 15 at the upper end and discs 40, 41. The disc 40 is of a non- magnetic conductive material and its periphery lies within gaps 34 in the magnetic circuit so that variation in the excitation of winding 32 causes a change in the braking effect of eddycurrents in the disc so as to tend to maintain tape tension constant. The disc 41 is a phonic wheel having a toothed or perforated periphery and is made of a ferromagnetic material. The magnetic circuit of the coil 32 is extended to include the disc 41 by a tubular portion 43 and an end cover 44. A pick-up coil, not shown, is mounted to coact with the flux through the disc 41 to generate impulses which may be used to drive a tape speed or footage indicator. It is stated that the functions of disc 40, 41 can be combined by forming a ring of holes, of teeth, on the periphery of disc 41 to produce irregularities in the field of coil 32 which are detected by a pick-up coil.