baber/WOPTO huggingface dataset:
Patent GB-906079-A (GB)
Title: Improvements in boiling coolant nuclear reactor systems and methods of operating such systems
IPC: G21D5/06
Filed: 1961-07-10
Abstract: 906,079. Reactors. BABCOCK & WILCOX CO. July 10, 1961 [July 12, 1960], No. 24869/61. Class 39 (4). The pressurized boiling water reactor 12 having a negative temperature coefficient of reactivity, supplies steam to an expansion turbine through the outlet 58 of the heat exchanger 14 and the reactor reactivity is controlled by regulation of the temperature of the liquid phase 26 in 14 before return to the reactor. The liquid 26 is cooled by the circulation of low pressure water in the tubes 30. The degree of cooling by 30 is controlled by the adjustable deflecting plates 56 and the pump 36 and valve 50. The former determines the flow by-passing 30 through the passages 54 and the latter pump and valve adjust the flow of low-pressure coolant through 30. Specification 526,825 is referred to.
Patent GB-1180503-A (GB)
Title: Analog-to-Digital Converter
IPC: H03M1/00
Filed: 1968-05-24
Abstract: 1,180,503. Amplifier circuits. BUNKER-RAMO CORP. 24 May, 1968 [12 June, 1967], No. 24879/68. Heading H3W. [Also in Division G4] An analogue/digital converter for converting an analogue signal E 1  within a predetermined range e.g. O-V to reflected binary form comprises a plurality of stages (one of which is shown in Fig. 6) each stage providing an output signal 112 the polarity of which represents the binary bit from that stage and a constant polarity output 102 fed to the next stage, proportional to E 1 -(V/2). In the embodiment described, the input to each stage is combined V with a reference - -, this signal being fed to an 2 amplifier 106 having a feedback path including two opposite poled diodes D1, D2 in parallel so that with an amplifier gain of two the output signal 110 varies between -V and V, the polarity representing the binary bit for the stage. The signal 110 is fed via diodes D3, D4 to a differential amplifier 132 the output signal 136 from which is of constant polarity since positive signals are passed unchanged whilst negative signals are inverted.
Patent GB-645136-A (GB)
Title: Method of growing crystals
IPC: C30B7/00
Filed: 1947-09-10
Abstract: <PICT:0645136/III/1> <PICT:0645136/III/2> Crystals are grown from seeds immersed in a saturated solution, the temperature of which is not permitted to fluctuate more than 1/100  DEG  C. over any desired period of time, by using at least one electrical infra-red radiator disposed outside the solution so as to irradiate into it from above, and electrical or mechanical means controlled by an adjustable thermostat immersed in the solution, which automatically regulates the heat irradiated into the solution.  The temperature of the solution may be slowly decreased, continuously or stepwise.  The solution is preferably put in a vessel of large cross-section so that it is sufficiently shallow for the lowest layer to absorb infra-red rays.  In Fig. 1, a seed 3 is immersed in saturated solution 2 covered with a layer of oil 4.  Two infra-red lamps 5 and 6 connected through switch 7 to a source of current 9, are placed above the solution.  The lamps are switched on and off by electric-relays 8 and 12 controlled by mercury thermometer 11 immersed in the solution. The contact wire 16 in the capillary 10 may be moved continuously or stepwise by clockwork or an impulse-relay-servomotor.  In Fig. 2, crystal 23 is mounted eccentrically and rotatably on axle 25, in solution 22.  A resistance thermometer 26 controls, by means of bridge 27 and amplifier 28, solenoid 29, which operates apertured-shutter 30; and the irradiation of the solution by infra-red lamp 33 is consequently controlled.  The desired decrease of temperature of the solution can be effected by variation of the resistance of a branch of the bridge 27.  If crystal-growth has to be effected at temperatures higher than 50-60 DEG  C., the apparatus is enclosed by thermally-insulated vessel 35.
Patent GB-265649-A (GB)
Title: Improvements in or relating to rock drills and like percussive tools
IPC: E21B21/01
Filed: 1925-10-07
Abstract: 265,649. Barnett, W. J. Oct. 7, 1925. Percussive drills. - The water tube of a rock drill or like percussive tool is mounted so as to be capable of longitudinal play between an adjustable spring F at its rear end and the end of the drill steel C or the anvil block. The water passes to the tube from a suitable connection M through small openings in the periphery of a washer I.
Patent GB-1299686-A (GB)
Title: A supersonic axial-flow compressor
Inventor: FRIBERG JEAN-MARIE
IPC: F04D21/00
Filed: 1971-04-19
Abstract: 1299686 Axial-flow compressors COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 19 April 1971 [23 March 1970] 25077/71 Heading F1C A supersonic axial-flow compressor has a  rotor 5 and downstream fixed blading 10,11. The rotor blades 8 and fixed blading 10, 11 extend across an annular fluid-flow passage. The angles of incidence of the rotor blades and fixed blades are small, the cross-sectional area of the fluid paths between the rotor blades are non divergent and between the fixed blades 10 are non-convergent, and the leading edges of the rotor and fixed blading are rounded and have a small radius of curvature, e.g. 0À5% of the blade chord. The paths between the rotor blading and fixed blading may be short and convergent and short and divergent respectively to produce respective shock waves. Alternatively, the paths therebetween may be long and of substantlally constant cross-section to produce gradual flow transformation. The blading may be profiled so that the product of the ratios at the inlet and outlet ends of the relative fluid speed to the critical speed of sound, is substantially unity, e.g. relative speed ratio at rotor inlet may be Mach 1À35 and at rotor outlet may be Mach 0À75. The compressor may have a number of stages, the fluid leaving one stage being mixed with a secondary fluid flow re-cycled through a tangential inlet aperture.
Patent GB-426946-A (GB)
Title: Improvements in key-operated electric switches
IPC: B60R25/04
Filed: 1933-09-11
Abstract: 426,946. Snap action key - operated switches. SEAWRIGHT, G. B., Newton Works, Whitfield Place, Tottenham Court Road, London. Sept. 11, 1933, No. 25126. [Class 38 (v)] In a quick-action switch of the tumbler type the switch is operated by means of a key 18 rotatable about an axis perpendicular to the plane of movement of the contacts. The key 18 is adapted to engage a slot 17 in a turn member 12 having fixed to it a U-shaped member 13 the other end of which engages a depression 7<a> in a plate 7 which slides on two plates which pass through slots 6<a> in the member 7. These plates are fixed to a member carrying roller contacts 5 which are adapted to roll along the bottom of the casing under the control of a quick-action spring 8. The key 18 cannot be withdrawn when the switch in " on ."
Patent GB-1218743-A (GB)
Title: Improvements in liquid freezing and thawing apparatus
Inventor: BAXTER RONALD FRANCIS
IPC: C02F11/20
Filed: 1967-06-01
Abstract: 1,218,743. Freezing liquids. J. & E. HALL Ltd. 31 May, 1968 [1 June, 1967], No. 25321/67. Heading F4H. Apparatus for freezing and thawing liquids to facilitate subsequent precipitation therefrom comprises a tank 18, a nest of tubular heat exchange devices 15, the longitudinal axis of each device diverging from the axes of all of the other devices, and means for supplying and withdrawing refrigerant to and from the devices 15 at their lower ends only. The tank 18 and the envelope surface of the nest are each frustoconical, the cones having different apex angles so that the gap between the nest and the walls of the tank increases upwardly. Each device 15 comprises an outer tube 16 communicating with a chamber 12 and an inner tube 17 communicating with a chamber 13, connections 26, 27 for refrigerant and heating medium being provided to the chambers. The latter are formed by a partition 14 in a domed base structure 9, 10 supported on legs 7 and the tank 18 is vertically movable by jacks 23 into and out of contact with the upper surface of the base structure. A seal 20 prevents escape of liquid when the tank is lowered and the tank is raised to permit the thawed liquid to flow into a discharge chamber 1 having a sloping floor 4 and an outlet 5.
Patent GB-717399-A (GB)
Title: Improvements in or relating to photo-electric machine guards
Inventor: MORRIS SAMUEL ARTHUR
IPC: F16P3/14
Filed: 1952-10-09
Abstract: 717,399. Photo-electric machine guards. GENERAL ELECTRIC CO., Ltd. Sept. 28. 1953 [Oct. 9, 1952], No. 25349/52. Addition to 664,797. Class 40 (3) In a photo-electric machine guard comprising photo-cells and means adapted to set the machine in operation when beams of light are facing on each of the cells but to prevent the operation when no beam is falling on any one of the cells, means are provided periodically and automatically to intercept the beams to each of the cells in succession to check the functioning of each cell. As shown, beams of light pass from sources 10a, 10b, 10c across the front of a power press or other machine to be guarded to series connected photo-cells 13a, 13b, 13c respectively. When all the cells are illuminated an anode relay 23 of an A.C. fed triode 20 is energized. Relay 23 in turn operates a relay 26 which energizes a magnet 36 to fix the fu'crum of a foot-operated lever 30 so that the machine may be set in operation. Towards the end of the machines operating cycle contacts 48a are opened and contacts 48d closed by moving part of the machine, thus intercepting the beam of light tc cell 13a. If relay 26 is not de-energized contacts 48d complete the circuit of a relay 42 which locks itself over contacts 46, operates a warning device 45, and breaks the supply to the contacts of relay 23, thereby preventing subsequent energization of relay 26. All the photo-cells may be checked in the same cycle or during successive cycles of the machine operation. A larger number of cells operating through one amplifier or in groups through a number of amplifiers may be used. An alternating current amplifier using two for more valves and operating from modulated light may be used.
Patent GB-296899-A (GB)
Title: Improvements in the wet extraction of copper
IPC: C22B15/00
Filed: 1927-09-26
Abstract: 296,899. Dietzsch, F. Sept. 26, 1927. Sulphuretted hydrogen is obtained by passing sulphar dioxide together with steam over heated carbon; or by reacting sulphide, for instance a mixture of calcium and ferrous sulphides obtained by melting 3 parts of lime with 10 of pyrites, with a liquor containing hydiochloric and sulphuric acids obtained by leaching oxidised copper ores with hydrochloric acid containing sulphur dioxide and precipitating the copper by sulphuretted hydrogen.
Patent GB-1386173-A (GB)
Title: Sensing head for automatic multi-dimensional measurement of  specimen
IPC: G01B5/012
Filed: 1972-05-31
Abstract: 1386173 Co-ordinate measuring machine CARL ZEISS JENA VEB 31 May 1972 25436/72 Heading GIM A sensing head 1, Fig.1, to be mounted on the carrier of a machine movable in three co-ordinates, comprises a housing part 4 provided with trunnions 2, 2' carrying a gimbal ring 5 and an outer tube 6 tiltable about trunnions 3, 3', Fig. 3 ao that the suspended system may tilt about co-ordinate axes x and y respectively. The tube 6 rotatably supports an inner tube 8 on ball bearings 7 and 8 carries rollers 9 for guiding a sleeve 10 and sensor 15 along a z axis. The parts 4 and 5 carry sensors 13, 14; 11, 12 attached to a frame 16 on the tube 8 which sensors maybe locked in mid position by stop levers 17-20. Disengagement of the tilting system in one of the co-ordinate directions is effected by lifting magnets 21-24 connected to slides 25-28. For example, operation of magnet 22 releases the stop lever 18, lifts the gear 26 which is fixed to a joint 30 between springs 35, 36 in a cage 48, and lifts an element 49 fast with the sleeve 10, so that sensor 15 within the sleeve is slid up or down along the z axis. Other magnets are arranged to move the sensors about their axes 2, 2'; 3, 3' or rotate the frame 16 on the tube 8 about the axis z. Rotation of the tilting system about any of the three co-ordinate axes is transmitted to one of the transducers 50-53 through parts such as 54, 55, Fig.3, transforming the amount of movement into electrical values. The weight of the sleeve 10 is balanced by an equalizer 58 and the frame 16 carrying the sensors 11-14 may be inverted. In operation the head is mounted in a carrier of the measuring machine which is displaceable along three co-ordinate axes by hand or automatically. One of the magnets is caused to move out or tilt out a sensor which is then moved into contact with the body to be measured. As advance of the machine continues the sensor is moved back to a mid position by contact with the surface of the specimen and in so doing causes the transducers to reduce the velocity of the sensing head until the approach to mid position and then produce control signals which correspond to the measured value. These values may then be fed to display or calculating machines.
Patent GB-1514909-A (GB)
Title: Electronic monitoring equipment
IPC: H01F38/14
Filed: 1974-06-07
Abstract: 1514909 Measuring machine parameters BRITISH STEEL CORP 20 May 1975 [7 June 1974] 25436/74 Heading G1N [Also in Division H1] Apparatus for monitoring a parameter of a machine comprises a transformer having a first part fixed to the machine and a second part, coupling with the first part, attachable to the machine by an electromagnet. As shown (Fig. 1), a part 3 of a machine supports a first member 1 with a frustoconical recess 8 which matches an external surface 7 of a second member 4, attached by an electromagnet 9 to bring together two core assemblies 11, 12 and windings 13, 14, 19, 20, the windings 13, 14 forming a power input transformer 21 (Fig. 2). The AC is rectified at 27 to energize a pulse generator 28 whose mark/space ratio is modulated at 29 by a measurement signal derived by transducer 15. These pulses are fed out by windings 19, 20 to be demodulated at 35. The measured parameter may be vibrations, stress or temperature.
Patent GB-1507463-A (GB)
Title: N-(1-benzylpiperid-4-yl)-benzamides methods for their preparation and pharmaceutical compositions containing them
IPC: C07D211/58
Filed: 1975-03-10
Abstract: 1507463 N - (1 - benzyl - 4 - piperidyl)- benzamides ANTONIO GALLARDO SA 10 March 1975 [21 March 1974 12 Aug 1974] 25537/77 and 25538/77 Divided out of 1507462 Heading C2C Novel compounds I and salts thereof [in which X is Cl or Br, R 1  is C 1-6  alkyl, R 2  and R 3  are H or R 2  is 3-Cl, 4-Cl, 4-Me or 4-MeO and R 3  is H or R 3  and R 5  together represent 3,4- methylenedioxy] are prepared by known methods disclosed in parent Specification. Compounds I antagonise the effects of dopamine or dopaminergic agents and form with a carrier or diluent a pharmaceutical composition which may be administered orally, parenterally or topically.
Patent GB-1046673-A (GB)
Title: Apparatus for surface-treating tubes, pipes, or the like
Inventor: PURDIE WALTER
IPC: B24B5/38
Filed: 1964-06-19
Abstract: 1,046,673. Surface treating. W. PURDIE (DECOKING) Ltd. June 19, 1964, No. 25566/64. Addition to 957,180. Heading B3D. [Also in Division F2] In an apparatus for the surface treatment of pipes, a cage, comprising annular members 15, 16 adapted to surround a pipe (not shown) to be treated, is rotatably mounted in a casing 10 for angular movement relative to the casing and pipe, at least two surface-treatment elements 18 being mounted between the members and arranged to be subjected to centrifugal force so as to bear against the surface of the pipe. The members 15, 16 are spaced apart by a pair of rods 17 each of which pivotally supports a pair of arms 23 carrying elements 18 at one end and detachable or adjustable weights 24 at the other such that, as the cage is rotated in sealed casemounted bearings 19 by a V-belt engaging a pulley 20, the weights are urged outwards and cause the arms to pivot on the rods 17 thereby forcing the elements to bear against the pipe. The easing 10, comprising arcuate members 11 and 12 arranged to hinge at 13 and lock at 14, is secured at 21 to a rigid floor-mounted housing 22 through which cleansing fluids may be passed. Said housing may resiliently mount waisted pipe-guiding rollers in adjustable brackets. Alternatively, as in the parent Specification, the casing 10 has no outer housing, the functions of the latter being provided by the casing itself. In another embodiment, Fig. 3 (not shown), for surface treating the ends of pipes, the cage is driven through gearing by an electric hand-drill, a guard casing and a pilot bar attached to the drill chuck being provided to locate the pipe end with respect to the cage. The elements 18 comprise a plurality of abrasive rollers between which wire-brushes, grinding wheels, cylindrical cutters, or mops may be fitted.
Patent GB-362447-A (GB)
Title: Improvements in card filing and segregating apparatus
IPC: G06K21/02
Filed: 1930-08-27
Abstract: 362,447. Statistical a p paratus. SELECTOGRAPH CORPORATION, 258, Clara Street, San Francisco, U.S.A. Aug. 27, 1930, No. 25595. Convention date, Sept. 4, 1929. [Class 106 (i).] Sorting cards.-In a card-filing and segregating apparatus a manually controlled mechanism, actuated after setting of the selector mechanism, is adapted to act on all the cards simultaneously tending to move them, without turning, tilting, or otherwise moving the apparatus as a whole. Each card has a strip of magnetic material, a magnet, when energized, attracting all the cards, only those selected being free to move. Cutters are provided for preparing the individual characteristics of each card. Cards 5, Figs. 2 and 3, each bearing a magnetic strip 31, are stacked in a compartment 2, above selector bars 15 mounted on rods 17 and slidable in guides 9. Each bar 15 is connected by a lever 19, pivoted at 20, to a key 18 depression of which moves said bar upwards and forwards to engage a corresponding slot in the cards 5 made by the lugs 30, the cards normally resting on shoulders 10. The forward ends 23, Figs. 1 and 2, of the selector bars 15 are confined below a shear bar 29 and carry slidably attached cutter members 24 resting on spring fingers 27. Operation. To prepare the individual characteristics of a card the keys corresponding thereto are depressed, and the card inserted with the lugs (to the left of the slots which if the card was in the stack would normally be engaged by the operated selector bars) in the cutter members 24, projected forward by the operated keys which by friction remain depressed. A handle 32, Fig. 1, is now pressed backwards a bar 34 attached thereto simultaneously returning the operated keys to normal and cutting off the appropriate lugs 30. The card stack being aligned by manually forcing the cards against the wall 36, Fig. 2, (adjustable by means of screws 37 allowing cards of different widths to be accommodated), to select any card, the keys corresponding thereto are depressed, the related selector bars rising into the slots in the cards locking all the cards except the desired one against lateral movement. The handle 32 is now moved to the front, closing a mercury or other switch 50 to energize a magnet 38, the core of which extends the whole length of the card chamber 2, and is adjusted rotatably about a rod 56 so that the core face adjacent the magnetic strips 31 is inclined thereto. The desired card being the only one capable of lateral movement, is attracted to the right and rotates until its magnetic strip 31 engages the magnet face when the card may be removed by hand. The card stack may be removed from the machine on a carrier comprising rods 7 integral with the partitions 8, the rods 7 which then engage recesses 6 in the cards, normally being received by recesses in the guides 9.
Patent GB-227512-A (GB)
Title: Improvements relating to brake-operating and similar levers for attachment to cycle handle-bars and the like
IPC: F16C1/12
Filed: 1923-10-15
Abstract: 227,512. Blumfield, T. F. Oct. 15, 1923. Brake mechanism.- In inverted-lever attachments for cycle handle-bars &c. for use with Bowden mechanism, the conical seating a, by means of which the cable f and outer tube d are guided into position during the threading- operation, leads to a hole e of sufficient size for the passage of the soldered-on nipple f<1>, but smaller than the endcap d<1> of the tube d. In modifications, the conical seating a is formed in separate members (e.g. sheet-metal stampings) attached to the plug b<1> secured in the end of the handle-bar.
Patent GB-532615-A (GB)
Title: Improvements in or relating to upwardly acting closures for doorways
IPC: E05D15/42
Filed: 1939-09-12
Abstract: 532,615. Door-operating appliances. STEVENS, A. H. (Crawford Door Co.). Sept. 12, 1939, No. 25657. [Class 65 (i)] A door 10 which swings upwards and slides backwards on tracks 15 is counterbalanced by a spring mounted in a winding drum 42 on the door, a cable 62 mounted on the drum passing down the inner face of the door, over a sheave and through a hole near the lower edge, and up the outer face to an anchorage on the door frame 14. The door is controlled in its movement by a pair of stays 23 pivoted at 24 to the sides of the frame and at other end to the lower part of the door. A spring bolt 63a engages a striker plate at the bottom of the frame to hold the door closed.
Patent GB-260574-A (GB)
Title: Improvements in or relating to the production of kinematographic negatives
IPC: G03B15/12
Filed: 1926-10-14
Abstract: 260,574. Akt.-Ges. f³r Spiegeltechnik, (Assignees of K÷hler, W.). Oct. 28, 1925, [Convention date]. Kinematograph apparatus.-In the production of composite kinematograph pictures by photographing separated parts of the subject simultaneously, one of the parts is a scene on previously prepared positive kinematographic film, and the film pictures are themselves successively photographed in substitution for the original parts of the subject when making the composite picture. As shown, a camera 1 is used to photograph a scene 2 through a mirror 3 and simultaneously to photograph a film 4 by reflection in the mirror, the film 4 being illuminated by a lamp 5. One or more lenses 6, to modify the relative size of the film image, and masks 7, 8, may be provided. The mirror 3 may be semi-transparent. The scene 2 may be replaced by an illuminated film, and the pictures on several film strips may be simultaneously combined by means of further mirrors. Specification 234,542, [Class 98 (ii), Photographic processes &c.], is referred to.
Patent GB-1424729-A (GB)
Title: Extraction of waste gas from oxygen blowing plant
IPC: C21C5/38
Filed: 1973-05-30
Abstract: 1424729 Flues for oxygen blowing plant; waste heat boilers AUGUST THYSSENHUTTE AG 30 May 1973 [31 May 1972] 25843/73 Headings F4B and F4J The suction flue of an oxygen blowing metallurgical plant is formed as a tubular waste heat boiler 1 of polygonal cross-section spaced from the mouth of the vessel 3 and jets 8 of air under pressure are arranged near but spaced from the corners within the flue to. prevent escape of waste gas. The flue is of restricted cross-section so that the gases are not completely combusted at the height-of the flow.