baber/WOPTO huggingface dataset:
Patent GB-585447-A (GB)
Title: Improvements in ultra high frequency amplifiers
IPC: H03F3/54
Filed: 1941-05-10
Abstract: 585,447. Thermionic valves; artificial lines. STANDARD TELEPHONES & CABLES, Ltd., and TOMLIN, S. G. May 10, 1941, No. 6073. [Classes 39 (i) and 40 (iii)] An ultra-high frequency amplifier comprises an input resonator 1 and an output resonator 1<1> in alignment with a discharge valve 5 between them, as shown in Fig. 1, the resonators are of coaxial line type. The cathode 6 is connected to the inner conductor 3 of the input resonator and the anode 8 to inner conductor 3<1> of the output resonator. The grid 7 has a metal extension passing outside the discharge valve envelope to form a screen 11 between the two resonators being capacity coupled to both. Adjustable, concentric line input and output leads 12, 13 and-14, 15 are provided and tuning of the resonators may be effected by the sliding pistons 4, 4<1>. In a modification a hollow disc resonator DR, Fig. 3, is used for the output, the anode 8 being mounted on a wall of this resonator ; a similar form of resonator may be used for the input. The grid 7 is carried by an annular copper disc 11 sealed through the envelope 9. The disc resonator is tuned by screwing plugs into the chamber, or the copper disc 16 is corrugated and made movable.
Patent GB-141167-A (GB)
Title: An improvement in driving belts
IPC: F16G5/16
Filed: 1919-03-12
Abstract: 141,167. Lycett, E. March 12, 1919. Belts. - A belt for driving fans, dynamos, &c., on motor-vehicles, applicable also to motor-cycles, comprises a number of spring metal links a open at one side, containing rubber, fibre, leather, or like friction blocks d, and connected together by links c. The blocli d may be solid or laminated, or may consist of a bent strip as shown, which may contain an inner layer. The blocks are secured by screws e or staples g. Recesses in the links a or in the blocks to receive the links c may contain rollers f. A leather cover may be fitted over each link c and block d. An open-sided link c may serve as a belt-fastening.
Patent GB-944170-A (GB)
Title: Electromagnetic clutch, especially for fans or the like
Inventor: JUNIUS WALTER
IPC: H02K49/04
Filed: 1960-02-23
Abstract: 944,170. Electromagnetic couplings; cooling dynamo-electric machines. RHEINSTAHL HANOMAG A.G. Feb. 23, 1960, No. 6247/60. Heading H2A. An electromagnetic clutch, particularly for driving a fan, consists of a field coil 5 mounted on a stationary magnetic former 1 surrounded by a driving rotor 2 and a driven rotor 3. the amount of slip depending on the exciting current. The inner rotor 2 comprises two magnetic rings 6, 8 separated by a ring 7 of non- magnetic material, e.g. bronze or aluminium bronze. Embedded in the outer surface of rotor 2 and the inner surface of rotor 3 are axial copper rods with longitudinal grooves in their outer surfaces which serve as cooling channels. An air inlet duct 12'in rotor 3, blades 13 on rotor 2, and outlet ducts 14 are provided to cool the internal parts of the clutch. A fan 16 is fixed to the bottom of rotor 3.
Patent GB-165900-A (GB)
Title: Improvements in hand-braces
IPC: B23B45/06
Filed: 1920-06-29
Abstract: 165,900. Crocher, S. H. June 29, 1920. Hand and breast drills. - A handbrace in which the boring bit is driven by epicyclic gearing from the crank handle, has the gearing enclosed in a case provided with pawl-operating gear, to enable the bit to be driven in either direction by ratchet action. The bit-holder 1, Fig. 2, is driven through the wheel train 6, 7 from the wheel 9 which can be rotated by driving pins 12 in the clutch-handle 13. For different conditions, such as a direct drive, reverse and ratchet driving, the gear case 17 is provided with pawls 22, Fig. 3, which are carried by a spring 23 and actuated by eccentric projections on levers 19, Fig. 4.
Patent GB-1124567-A (GB)
Title: Identification system
Inventor: VON MIHRAN LE
IPC: G01S13/75
Filed: 1967-02-09
Abstract: 1,124,567. Track apparatus. LITTON INDUSTRIES Inc. 9 Feb., 1967, No. 6352/67. Heading B7N. [Also in Division H4] In an interrogator-responder system for identifying passing objects, e.g. railway wagons, the interrogator radiates a signal comprising a carrier modulated by a plurality of signal frequencies, and the transponder, which requires no power source, comprises means for demodulating the received signal and passive circuitry tuned to a predetermined signal frequency whereby it emits electromagnetic radiationat the predetermined signal frequency when a predetermined carrier frequency modulated by the predetermined signal frequency is received. Each wagon may carry a plurality of transponder units each unit being responsive to a different carrier frequency and signal frequency whereby numerical or alphabetical coding may be provided. The passive circuitry may be removable from the transponder to facilitate changes in the coding. The amplitude modulated carrier may be in the form of a carrier and one sideband which may be generated directly by oscillators operating at the carrier and sideband frequencies respectively. Fig. 4 shows a station for interrogating a vehicle carried transponder and for interpreting a return signal from the transponder. Five carrier frequencies are generated sequentially and cyclically by an oscillator 50 via a stepping switch 52 and supplied to a modulator 58. Ten modulating frequencies are provided by an oscillator 60 via a stepping switch 62, the switches 52, 62 being driven by a motor 54 so that switch 62 completes one cycle at each position of switch 52. The output of the modulator 58 is supplied to a directional aerial 26 situated between the rails, Fig. 1 (not shown), the return signal from the transponder being picked up by an aerial 28 adjacent aerial 26 and supplied to a receiver 70 which includes ten circuits 72 respectively responsive to the ten signal frequencies and providing corresponding outputs on lines 74. In order that each signal on lines 74 is associated with the correct digit position a five-position rotary switch 76 is mechanically coupled to the switch 52 to complete a connection to one of the five lines 78 in accordance with the carrier frequency being generated. By this means one of the elements 82 will be energized in each column of the matrix 80 which may consist of neon lamps or magnetic or other storage devices. Conventional apparatus may be provided for reading out and transferring the data to punched cards or the like. In a modification, Fig. 5 (not shown), the carriers are transmitted sequentially but each carrier is modulated simultaneously by all the signal frequencies. A modified transponder unit, Fig. 6 (not shown), is provided with two tuned circuits responsive to two signal frequencies which are then radiated from separate aerials. The matrix of Fig. 4 may be replaced by AND gates, Fig. 7 (not shown), co-operating with capacitor storage means so that the return signal pulses are prolonged sufficiently for coincidence to occur.
Patent GB-846845-A (GB)
Title: Low-temperature cooling apparatus
IPC: F17C13/00
Filed: 1959-02-24
Abstract: 846,845. Liquefraction of gases. SULZER FRERES S. A. Feb. 24, 1959 [March 28, 1958], No. 6397/59. Class 8(2). Apparatus for cooling difficultly liquefiable gas to low temperatures comprises a highvacuum tank 1, having a domed top 12, under an absolute pressure of not more than 10-<SP>3</SP> mm.Hg. and a pre-vacuum tank 13 at an absolute pressure of 10-<SP>3</SP> to 102 mm. Hg. The tank 1 houses heat exchanges 2, 3 and the lines 7, 11 for refrigerant and gas respectively all the connections between the parts in this tank being mechanically non-detachable, e.g. the connections are made by welding or soldering. The lines 7, 11 extend through the dome 12 to the pre-vacuum tank which houses the parts connected to the lines by mechanically detachable connections, e.g. screw joints, bayonet joints, such parts are the valves 21, 22, 23, 24, throttle valves 16, 17 which are controlled by pneumatic servo-rotors 25, 26, and any filters and thermocouples secured in the lines. Overhauling the valves etc. may thus be performed without opening the high vacuum tank 1 to atmosphere. The top of the tank 13 is preferably doubled walled in the intermediate space 15 of which a high vacuum is maintained.
Patent GB-1380810-A (GB)
Title: Air bearings
IPC: F16C39/04
Filed: 1972-02-11
Abstract: 1380810 Bearings UNITED KINGDOM ATOMIC ENERGY AUTHORITY 22 Jan 1973 [11 Feb 1972 31 Aug 1972] 6449/72 and 40515/72 Heading F2A A gas bearing assembly has a shaft 1 and a sleeve 5 rotatable relative to one another, the bearing surfaces being such as to maintain a bearing film between them, the relative axial positions of the shaft and sleeve being maintained by a hydrostatic gas end thrust bearing formed by a cushion of gas contained in a trapped volume 7 at one end of the shaft, and by an oppositely acting grooved hydrodynamic gas thrust bearing defined between co-operating radially extending faces on the shaft and sleeve, there being means for supplying pressurized gas to the inner end of the radial faces, the gas supplied passing radially between the faces to the trapped volume from which it may escape via a restricted vent 17. The fixed nember may be resiliently mounted in a housing, and may be provided with ducts for supplying the gas to the bearing faces. A layer of plastics bearing material may be provided on the sleeve.
Patent GB-348741-A (GB)
Title: Improvements in hydraulic variable speed gearing
IPC: F16H39/32
Filed: 1930-02-27
Abstract: 348,741. Hydraulic transmission of power. DONES, F. T., 79, Cranmer Street, Long-Eaton, Derbyshire. Feb. 27, 1930, Nos. 6461 and 10288. [Class 69 (ii).] In a hydraulic variable gear, the driving shaft A7 carries a rotor A having two axial passages D2 terminating in ports Dl, D3, and extending into the driven rotor B. The openings of the ports D3 which are triangular, may be regulated by an axially sliding sleeve A2 having a serrated edge. The rotor A is provided with a radially sliding blade A1, the ends of which are in contact with the walls of an eccentric cavity within the rotor B. Another compartment B5 within the rotor B is connected by a port C1 and passage D5 to a port C2. The driving member carries a rotary pump member C having radial blades A4 operating within a casing having ports E, F by which liquid is drawn in from the main casing at a low level and delivered at a higher level. The pump raises the pressure in the casing to a predetermined point at which the blades A4 are pressed against their springs and slip is allowed. The drive transmitted between driving and driven shafts is regulated by adjustment of the sleeve A2, neutral being obtained when the ports D3 are fully open and solid drive when the ports D3 are closed. The driven shaft B1 carries a bevel cogwheel F1 free to rotate thereon, and a coaxial shaft B2 extending through the casing carries a bevel cogwheel F2 fast upon it. Other bevel cogwheels F3, F4 are mounted on shafts at right-angles to the shaft B1. A sliding collar G is provided on the shafts Bl, B2 by which they may be connected together to obtain forward drive, or the wheel F1 clutched to the shaft B1, by which reverse drive is transmitted to the shaft B2 through the bevel gearing. A perforated plate or gauze K3 is provided to release air, and discs K1, K2 are provided on the shafts to prevent leakage of liquid along the shafts.
Patent GB-979793-A (GB)
Title: Fluid-operated disc-brake,for motor vehicles
IPC: F16D65/18
Filed: 1961-02-23
Abstract: 979,793. Disc brakes. A. AMADORI, and L. SITA, [trading as RUOTE AMADORI COLLETTIVA DI AMADORI & CO.]. Feb. 23, 1961 [July 13, 1960], No. 6611/61. Heading F2E. In a spot-type disc brake, the two opposed cylinders 4 and the calliper 2 are formed as a single light-metal casing with internal fluid ducts 16. The friction pads 7 are attached to backing plates 107 carried in guides 6 in the calliper, which guides allow radial replacement of the pads when a retaining plate 11 has been removed. The pistons 5 have radial clearance with the cylinder bores and sealing is effected by an elastic rubber gasket 14 partially housed in a groove in either the cylinder or the piston, the gasket being deformed on brake application and returning the piston on brake release. The lug for securing the calliper to the vehicle, the feed nipple and the bleed nipple are all located on the inward side of the calliper. Specifications 688,382 and 742,338 are referred to.
Patent GB-814080-A (GB)
Title: Improvements in and relating to the processing of photographic material
Inventor: TOWNLEY EUSTACE RAYMOND
IPC: G03B17/50
Filed: 1956-03-02
Abstract: 814,080. Photographic processing. KELVIN & HUGHES Ltd. Feb. 15, 1957 [March 2, 1956], No. 6720/56. Class 98(2) Photographic processing apparatus has at least one jet with a liquid supply line and an air supply line arranged so that the compressed air draws up the liquid and ejects it as a fine spray, and an electro-magnetically operated valve in the air supply line. In a radar apparatus, Fig. 1, the trace on a cathode-ray tube 10 is photographed by a camera, of which the lens 13 and shutter 14 are represented, on a film 11. After a complete rotation of the aerial system the film is moved so that the portion just exposed is brought to a processing chamber 20, and at the next movement of the film, the processed film is brought to a position where it is illuminated by a lamp 17 and projected by a lens 18. Film advance is by the mechanism described in Specification 814,079. The processing chamber 20 contains four jets, one of which is shown at 22a. This jet is connected by a supply line 67 to a reservoir 26 containing developer, and by a supply line 27 to a source of compressed air passing through a heater 28. The air flow is controlled by a solenoid-operated valve 29, which, when energized, allows heated air to pass to jet 22a, where it emerges from an orifice with a fall in pressure which draws developer from the reservoir 26 along line 67, and blows it as a spray against film 11. Treatment follows with sprays of fixer and water from similarly arranged jets 22b, 22c (not shown), and with heated air from another jet controlled by a solenoid-operated valve which closes on energization. Waste liquid flows out of the chamber 20 by a pipe 21. The proper sequence and duration of each treatment is ensured by cams mounted on a shaft which turns in synchronism with the aerial. The cams operate switches in the valve circuits, and also control the film advance mechanism as in Specification 814,079, and a film-crimping mechanism 32 as described in Specification 764,970. An amplifier in the servomotor circuit coupling the aerial to the camshaft may energize a relay having contacts in series with each of the cam switches. In the event of failure, the contacts open so that the liquid supplies cease to operate, but the air supply is opened. The same result obtains in the event of a failure of the current supply to the solenoidoperated valves.
Patent GB-340862-A (GB)
Title: Improvements in and relating to the manufacture of ammonia
IPC: C01C1/04
Filed: 1930-02-23
Abstract: Gases &c., treating with electric discharges.--Ammonia is obtained from a mixture of nitrogen and hydrogen by the action of dark electric discharges, the reaction chamber being heated above the critical temperature of 132 DEG  C.  The speed of flow of the gases is sufficiently high to prevent decomposition of the ammonia formed. A catalyst, such as cobalt nitrate, may be used, or the walls of the reaction chamber may be constructed of catalytic material.
Patent GB-212411-A (GB)
Title: Improvements in apparatus for winding cotton, thread, twine, and other fibrous materials into cops, cheeses and the like
IPC: B65H54/28
Filed: 1923-03-09
Abstract: 212,411. Baines, E. N., and Schmidt, J. W. March 9, 1923. Winding-machines.-In winding cops, cheeses, and the like g, the yarn is led from a tension device j across the edge of a revolving plate a, by means of which it is traversed on the yarn package g. The spindle f, which carries the cop or the like g, is spring pressed against the concave surface i of a guide-plate i<1>, and as the cop is wound is moved away therefrom. The yarn passes over the edge of the guide-plate i<1> and is traversed to and fro upon it in a straight line. By regulating the speed ratio between the plate a and the spindle f, and by using a cam plate consisting of more than one wing, various types of yarn packages may be wound.
Patent GB-210313-A (GB)
Title: Improvements in and relating to cigarette and like cases
IPC: A24F15/12
Filed: 1923-03-09
Abstract: 210,313. Gloster, Ltd., J., and Gloster, E. March 9, 1923. Fittings, internal.-Cigarettes &c. are held in position within a case by means comprising resilient members a, b which slidingly engage each other so that the device may be simultaneously flexed and extended to allow the removal of the cigarettes &c. The device is applicable also to note, card, letter and despatch cases.
Patent GB-580799-A (GB)
Title: Improvements relating to solid fuel grates, stoves, ranges or the like
IPC: F24B1/19
Filed: 1945-03-19
Abstract: 580,799. Regulating combustion. RADIATION, Ltd., STEPHENS, S., DAVIDSON, W., and PICKARD, J. C. March 19, 1945, Nos. 6880 and 21789. [Class 126] In domestic stoves or grates of the kind in which the combustion space has an open front and a low front wall, the ashpit is provided with a substantially air-tight pivoted flap f and a vertically movable screen h is fitted which may be raised and lowered in a hollow front d. For slow burning, the flap f is closed and the screen h is raised and tilted over the fire so as partly to enclose the fuel and. to deflect from the fire the air-flowing inwardly from the room. The flap f and lower part of the plate d are enclosed by a decorative plate g.
Patent GB-1518203-A (GB)
Title: Stay for stopping and retaining a pivoting panel in the open position
IPC: E05C17/32
Filed: 1976-02-20
Abstract: 1518203 Stays AUTOMOBILES CITROEN SA 20 Feb 1976 [14 March 1975] 06886/76 Addition to 1452713 Heading E2F An embodiment of the parent Specification which employs a common pin 31' extending through bearing loops 28, 32 and 26, 30 at the ends of arms 5, 6, 11, 12 is modified by the inclusion of a resilient sleeve 33' which receives the pin in a force fit and bears against the inner loops 26, 28. The sleeve is slotted and in Figs 1 and 3 is formed in two parts which have interengaging helical ramp surfaces to allow the length of the sleeve to be adjusted by relative rotation of the parts. Alternatively a single part sleeve can be employed, Fig. 2.
Patent GB-972056-A (GB)
Title: An improved process for controlling the charging of a tube mill
IPC: B02C17/18
Filed: 1961-02-24
Abstract: 972, 056. Automatic control of grinding. RHEINISCHE KALKSTEINWERKE G.m.b.H. Feb. 24, 1961 [Feb. 27, 1960], No. 6907/61. Heading G3R. In an arrangement in which material to be ground is supplied to a tube mill from a conveyer, change in the density of material on the conveyer causes alteration in the rate of deposition on to the conveyer and the rate of movement of the conveyer, so that the volumetric rate of flow of the material varies inversely as the square of its density. In Fig. 2 the material passes from a hopper 40 to a variable speed conveyer 42 discharging into a tube mill (not shown). A gate 44 is automatically adjusted by a controller 48 to maintain, on the conveyer, a constant weight of material as detected by a Geiger-Muller counter or ultrasonic device. A variable speed drive 43 for the conveyer is adjusted simultaneously with gate 44 to give the desired inverse square law. A signal W dependent on the power taken by the tube mill is applied to controller 48 to maintain such power constant. Alternatively signal W may control variable speed drive 43 only. The weight of the material on a section of the conveyer may alternatively be determined by weighing rollers instead of the radiation gauge.
Patent GB-747140-A (GB)
Title: Improvements relating to bottle handling plant
IPC: B67C7/00
Filed: 1954-03-10
Abstract: 747,140. Bottle washing machines. GRAHAM-ENOCK MANUFACTURING CO., Ltd., and ENOCK, A. G. March 10, 1954, No. 6942/54. Class 138(1) [Also in Groups XVII and XXX] Relates to means for feeding dirty milk bottles into the washing unit S described in Specification 689,685. Bottles are fed to the unit by a series of conveyers t which tip them into receiving members 26. These are then rotated through 90 degrees in a clockwise direction so that the bottles are tipped on to an inclined platform 134 from which they slide into a line of baskets 116 carrying them through the washing unit. Meanwhile a guard 27 has been raised in front of the conveyers t to prevent the advance of succeeding bottles. The guard is then lowered and the receiving members returned to their original position.
Patent GB-161420-A (GB)
Title: Improvements in and relating to wheel rims for automobiles and the like
IPC: B60B25/20
Filed: 1920-03-08
Abstract: 161,420. Menegotti, A., and Mancini, G. March 8, 1920. Tyre attachments to rims.-The rim is divided at b, so that the detachable part A has a portion which fits over the felloe a. Secured to the parts A, B of the rim are lugs c, c<1>, the former having a projection D which fits a recess in the felloe a. The part A is held in position by nuts f screwed on to bolts e and provided with cylindrical necks to pass through holes in the flange c and fit into recesses in the felloe. An ordinary rim may be converted by dividing the rim at or about the point b and securing flanges such as c, c<1> to one or both portions of the rim by riveting, welding, &c.
Patent GB-1162291-A (GB)
Title: New method of Separating Isotopic Species and device for carrying out this method
IPC: G01N30/82
Filed: 1967-02-14
Abstract: 1,162,291. Separating isotopes by gas chromatography. SOC. NATIONALE DES PETROLES D'AQUITAINE. 14 Feb.. 1967 [15 Feb., 1966], No. 7082/67. Heading B1L. Isotopic species of an isotopic mixture are enriched or separated by periodically adding a small quantity of the mixture to a vector gas flowing through an enclosure containing a molecular sieve or a porous powder having surface adsorption properties, determining the concentration of ionic species in the mixture emerging from the enclosure and fractionating it according to such determination into successive fractions containing different concentrations of the ionic species. As shown in Fig. 2, a device 23 permits successive small quantities of the isotopic mixture to be introduced from the pipe 22 into vector gas, e.g. helium, argon or neon, passing down the pipe 21 and into a separation column 24. The outlet of column 24 is connected to an isotope detector 28, which may be, e.g. a mass spectrometer and which controls, through a member 29 provided with timing means, a servo-controlled distributor 25 which directs the gas leaving the column 24 either into a pipe 26 for recycling the vector gas or into fraction receivers 27. A preliminary run is done to enable the most favourable moments for collecting the various fractions to be determined. The mass spectrometer may have two ion collectors, the outputs of which are integrated, amplified and compared, or a single ion collector may be employed, the analysing magnetic field of the mass spectrometer being periodically varied, and the output of the ion collector transformed into pulses and the degree of enrichment determined 'by computers.