baber/WOPTO huggingface dataset:
Patent GB-1142787-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: CRUMPEN MERVYN JAMES
IPC: H01Q25/00
Filed: 1965-08-16
Abstract: 1,142,787. Aerials. MARCONI CO. Ltd. 11 May, 1966 [16 Aug., 1965], No. 34959/65. Heading H4A. An aerial comprises a waveguide 12 having in a narrow wall thereof a set of radiating slots on each side of an intermediate point in its length, one set of slots 13 being fed in phase and adjacent ones of the other set of slots 14 being fed in anti-phase and each set having the same main direction of radiation. A feeder 15 at the intermediate point may be used, when each array is terminated by a matching load 4, or, alternatively, the two ends of the waveguide 12 may be fed in phase and a matching load provided at the intermediate point. The two sets of slots have a main direction of radiation 18 (or 19) when fed from the intermediate point and a different main direction of radiation 18<SP>1</SP> (or 19<SP>1</SP>) when fed from the ends. Switching means may be provided for changing from one way of feeding to the other. The arrangement may be used in an airborne Doppler navigation equipment.
Patent GB-191944-A (GB)
Title: Improvements in hose clips
IPC: F16L33/06
Filed: 1921-12-29
Abstract: 191,944. Barmes, F. J. T. Dec. 29, 1921. Clips, band.-A hoseclip consists of a wire or strap F curved to fit the hose, one end G passing through a hole C in a tension-piece A. and being screwed to receive a tightening nut H, and the other end D being bent at right-angles to engage a recess E and a second hole J in the tension-piece, approximately parallel with the hole C. The tension-piece may be made from a metal strip A, Fig. 6, formed with holes C, D.
Patent GB-1471774-A (GB)
Title: Apparatus for heating deep-sea divers
IPC: B63C11/28
Filed: 1975-05-23
Abstract: 1471774 Water heating system for deep sea divers K J ADAMS 23 May 1975 [8 Aug 1974] 35005/74 Heading F4A A system for supplying sea water heated to a controlled temperature to a deep sea diver comprises: a steam generator 2 which delivers steam to a heat exchanger 3, a line 36 which delivers cold sea water to be heated to the heat exchanger, a line 37 which delivers heated sea water from the heat exchanger, a mixing device 4 which mixes the heated sea water and cold sea water in response to an adjustable thermostat 51 which senses the output temperature of the device 4, and a temperature sensor actuated by the hot water from the heat exchanger to control the steam supply to the heat exchanger; the mixing device being isolated to allow manual mixing. Water for the steam generator 2 is supplied from a tank 1 and steam and condensate are returned by lines 10, 12, 13 from separator 14 and steam traps 23, 45. By closing valve 30 and opening valve 32 steam from a remote source can be fed in through line 31. The temperature of hot sea water leaving heat exchanger 3 (which comprises a mild steel tank and a helical copper nickel heating tube) is used to control (via a capillary line 24) a steam supply valve 21. A capillary line 52 is employed by thermostat 51 to control the mixing device 4 but the hot and cold sea water can be manually mixed by closing valves 57, 58, 59 to isolate device 4 and opening valves 62, 64 to lead the water past thermometer 67 and regulating valve 69 to the diver.
Patent GB-729420-A (GB)
Title: Improvements in or relating to an accessory system and rotary pump therefor
IPC: F04C29/00
Filed: 1953-12-17
Abstract: 729,420. Rotary pumps. TRICO PRODUCTS CORPORATION. Dec. 17, 1953 [Dec. 22, 1952], No. 35191/53. Class 110 (2). A gas pump of the outwardly-sliding vane type has oil sealing between the rotor and the working-chamber bore; the rotor ends and the casing. An oil-leakage collecting-groove 40 is provided in the pump end wall 10, adjacent a driving shaft coupling 24,' preventing the passage of oil along a shaft 3, which may be the generator shaft of an internal-combustion engine. As shown, the pump acts as a suction pump for actuating a windscreen-wiper motor of a motor car by causing a partial vacuum in a pipe 30 leading to the motor 31, Fig. 1 (not shown). The end wall 10 has bracket parts 13 for mounting the pump on the generator frame by screws 14, and also a centring boss 15 engaged within a counterbored seat 16 in a journal bearing 4. The bottoms of the vane slots are in communication through ports 19 so that sealing and lubrication liquid, or a gas, will surge back and forth under the vane movements, an inwardly-moving vane thus thrusting outwards another vane. The end faces of the rotor are provided with oil-collecting grooves 20. A stub shaft 22 is hollow to allow the entry of lubricant supplied through a pipe 35 from the engine crankcase to which the pump delivery and the excess lubricant are returned by way of a pipe 36, Fig. 2 (not shown). A non-return valve 37, Fig. 8 (not shown), prevents lubricant passing to the windscreen motor, or other accessory, when the latter is not in use. An oilcollecting well 39, about the coupling 24, prevents the passage of oil along the shaft and into the generator, the drain 40 leading to the pump inlet. The well is open to the atmosphere.
Patent GB-802804-A (GB)
Title: Improvements in or relating to hydraulic pit props
Inventor: TEBB BERNARD
IPC: E21D15/45
Filed: 1955-12-08
Abstract: 802,804. Hydraulic pit prop. MASTABAR MINING EQUIPMENT CO., Ltd., [formerly MASTABAR BELT FASTENING CO., Ltd.]. Nov. 21, 1955 [Dec. 8, 1955], No. 35219/55. Class 20(2) An hydraulic pit prop has a two-stage pump providing rapid extension for loading followed by setting under high pressure. Operation of shaft 31 reciprocates pistons 25 and 22 together so as to raise upper prop 17 by pumping oil from the reservoir into the space 50. After extension the hydraulic pressure allows the high pressure piston 25 to set the prop under load. External adjustment of eye 71 controls the collapse of the prop via torsion bow spring 61 as described in Specification 802,803.
Patent GB-1168726-A (GB)
Title: Production of Steam for Reacting in Chemical Processes Producing Carbon Dioxide Containing Gases.
Inventor: JONES DAVID MILNE
IPC: C02F1/20
Filed: 1967-08-01
Abstract: 1,168,726. Steam-reforming hydrocarbons. POWER-GAS CORP. Ltd. 30 July, 1968 [1 Aug., 1967], No. 35316/67. Heading C5E. Steam for use in hydrocarbon reformingprocess (at 14) is produced by condensing, at 21, 23, unreacted steam in the gases from the process and passing hot water with CO 2  in solution from the condensers 21, 23 to a stripping column 2 for counter-current flow to steam raised in a unit 1, the stripped water being passed as feedwater to the unit 1, and steam and CO 2  being passed from the column 2 to the reactor 14 via a superheater 8. Condensing at 21 is by direct contact with demineralized water supplied at 36 and water from a separator 27 which follows an indirect heat exchanger 23. Hot combustion gases from 14 traverse the superheater 8 and a heat exchanger 38 which, like a heat exchanger 19, is connected by water tubes 42, 43 with the unit 1. A dosing chemical, e.g. NaOH, NaSO 3 , hydrazine, may be supplied in aqueous solution at 44, and steam for heating may be withdrawn at 45 from the column 2.
Patent GB-674923-A (GB)
Title: Improvements in or relating to sifting apparatus
IPC: B07B1/28
Filed: 1947-12-31
Abstract: 674,923. Sifting apparatus. KEYSER, C. DE. Dec. 31, 1947 [March 22, 1941; May 16, 1941], Nos. 35391/47 and 35392/47. Class 117 Sifting apparatus comprises a sheet of screening material, e.g. textile or metallic and a flexible support therefor, which are directly actuated by at least one vibrating means exclusively of all the other parts of the apparatus. As shown, the screen material sheet A, Fig. 3, is directly connected at one end to the vibrating mechanism in the form of a hollow tube 9 supporting there within by means of bearings a shaft 6 rotated by a preferably adjustable unbalanced rotor mechanism, the tube 9 resting on flexible supports, in the form of rubber rings 11, in the main frame structure 12. At the other end the sheet A is secured to a tensioning device comprising a U-shaped spring 15 secured at one end to the rod 3 to which the sheet A is attached, and at the other end the spring bears against the end of an adjustable threaded rod 16, to adjust the tension of the sheet and consequently the vibrations thereof. The sheet A rests on a floating support comprising a frame 18, Fig. 6, which is supported itself on flexible supports 19 secured to the frame structure 12. The tension of supports 19 is preferably adjustable. The sheet A may be stretched between two vibrating mechanisms at least one of which assures the tensioning of the sheet. The vibrating mechanism and/or the tensioning device may be common to a plurality of screening sheets. The Specification as open to inspection under Sect. 91 comprises also a modification in which the screening sheet is stretched in a light support which is itself flexibly supported in the main structure and is directly vibrated by, for example, a driven shaft carrying an eccentric and located midway of the length of the screen. The screen is stretched by pressing its lateral edges against curved wooden stocks so as to give it the form of a saddle back or slightly curved. This subject-matter does not appear in the Specification as accepted.
Patent GB-1077838-A (GB)
Title: A hinge, more particularly for furniture
IPC: E05D11/10
Filed: 1964-08-28
Abstract: 1,077,838. Over-centre spring hinges. V. ASQUINI. Aug. 28, 1964, No. 35408/64. Heading E2F. A hinge for furniture doors or the like the components of which are spring urged to hold the door in its two limit positions, fully open and closed comprises two support members A and B for attachment to the door and door frame and connected together by links 18, 36 pivoted to the members A and B at 20, 32 and 28, 40 respectively. Spring means C comprising a coil spring 10 in a housing 12 is attached to a cross member 16 of the link 18 and to the member A at 14, in such a manner as to bias the hinge to the open (Fig. 1) or closed (Fig. 3) positions. In another embodiment (Fig. 8) the spring means C acts between member B and an extension (84) of one of the links (36b). Further the lower pivots of the links (18b, 36b) are attached to a support (70) adjustable with respect to the member A by screws (76) engaging in slots.
Patent GB-1381155-A (GB)
IPC: B04B7/00
Filed: 1972-07-28
Abstract: 1381155 Chuck-rotor assembly in centrifuges HABMONETICS CORP 28 July 1972 [28 July 1971] 35519/72 Heading B2P  A centrifuge for processing liquid, e.g. blood, comprises a rotor 10, e.g. of plastics, held in a chuck 30 which is affixed to a spindle 12 rotata'ble by driving means 15, Fig. 1, the base of the rotor being contoured to have a flat peripheral surface 20 in registration with a similar surface 31 of substantially the same size on the upper surface of the chuck with sealing means 32. forming a fluid tight seal between the surfaces 20 and 31, a downwardly inclined surface 21 defining an evacuatable space 34 with a similar surface 33 of substantially the same size and area on the upper surface of the chuck, and a central circular surface 22 in alignment with, and corresponding in diameter to, a central well 35 formed in the upper surface of the chuck, the space 34 being connected with evacuating means or the atmosphere via fluid communication means 37, 36, 43, 41, 63, 64, 65, 66, 69. Blood to be processed is introduced through a stationary inlet line 23 and the low-density fractions separated from the blood are discharged through a passage 24 between stationary walls 25 and 26. The space 34 communicates through a vent notch 37 with a fluid passage 36 between the surface 22 and the bottom surface 44 of the wall 35. The passage 36 in turn is in communication through fluid passages 43, 41 in the spindle with a fluid-tight spacing 63 defined by the spindle 12, a surrounding casing 48 and annular rotary seals 61, 62. The spacing 63 is connected via conduit 64, a three-way valve 65 and conduits 66, 69 to a vacuum tank and/or pump or to the atmosphere. The spindle 12 is suported in the casing 48 by means of ball-bearings 50, 52, the bearing 52 being mounted in an annular ring 54 of elastomeric material which permits flexible accommodation to any unbalance of the rotating parts and to reduce the load on the bearing 52. The spindle is driven through belt and pulley 75, 72 by an electric motor (76), Fig. 3 (not shown). A vacuum-actuated microswitch (80) may be connected to the conduit 64 and to the motor (76) to permit starting of the motor only if sufficient vacuum is present in the space 34. If a leak occurs in the vacuum system the switch serves to stop the motor. In a modification, Fig. 4, the spindle 12 is directly driven by an electric motor 95 which, together with a fan secured to the spindle, is mounted in a chamber 104 defined by a casing 97 and separated from a chamber, 101 surrounding the duct and rotor assembly by a divider wall 103. The spindle is mounted in bearing means 49, 50 and has a through fluid passage 86 communicating the space 34 with a fluid chamber 87 formed in a housing 88.
Patent GB-164679-A (GB)
Title: Improvements in or relating to reciprocating engines
IPC: F01B7/12
Filed: 1919-12-15
Abstract: 164,679. Vickers, Ltd., and McKechnie, Sir J. Dec. 15, 1919. Beam and lever engines; engines with two pistons reciprocating oppositely within same cylinder; engines with two or more parallel cylinders with axes perpendicular to main shaft.-In a modification of the engine described in Specification 165,861, the connecting-rod F operating the crank-shaft E is secured to one end of one of the rocking levers C'. A second shaft E, shown dotted, may be provided and similarly operated. In a second modification, an overhanging lever is centrally pivoted to the shaft c<1> and connected by rods to crank-shafts on either side of the engine. In the construction shown in Fig. 3, arms c<2>, c<3> are secured to the shafts c, c<1>, and are connected by the link D to the connecting-rod F. The link D may be made in a single piece and left unguided, or may consist of two links connected to and guided by a central pin d.
Patent GB-887433-A (GB)
Title: Preparation of methacrylic acid and esters thereof
IPC: C07C51/14
Filed: 1960-10-18
Abstract: Methacrylic acid or a methacrylate, having the formula CH2=C(CH3)COOR, in which R is hydrogen or an alkyl group having from 1 to 8 carbon atoms is prepared by reacting methyl acetylene with a mixture comprising nickel carbonyl, an acid and a compound of formula ROH, the mixture being at an initial temperature of at least 30 DEG C.  The preferred acid is hydro chloric acid but other acids, e.g. hydrogen bromide, hydrogen iodide and acetic acid, may be used. Preferably the reaction mixture is maintained under an inert, non-contanimating atmosphere.  The pressure may be atmospheric but a superatmospheric pressure ranging from 2 to 4 atmospheres is preferred.  It is desirable to add a polymerisation inhibitor, e.g. pyrogallol, hydroquinone, resorcinol or beta-naphthol to the reaction mixture.  The process may be operated batchwise or continuously and it is advantageous to use a stoichiometric excess of water or alcohol.
Patent GB-1196934-A (GB)
Title: Magnification Changer for Microscopes
Inventor: WILMS KARL-HEINZ
IPC: G02B21/22
Filed: 1967-08-03
Abstract: 1,196,934. Microscopes; lens mounts. R. RODENSTOCK [trading as OPTISCHE WERKE G. RODENSTOCK]. Aug. 3, 1967 [Aug. 26, 1966], No.35782/67. Heading G2J. A microscope is provided with variable magnification by means of an optical system arranged between the objective 2 and the eye-piece 53 and comprising a Galilean telescope 31 mounted for rotation about an axis 3 perpendicular to the optical axis of the telescope and a plurality of objectives 41 supported in a carrier 4 which is rotatable about a shaft 43 parallel to the optical axis of the telescope so as to bring a selected objective 41 to lie on the optical axis of the microscope behind the telescope 31. As shown, a stereoscopic microscope has two such optical systems arranged between a single objective and two eyepieces, the two telescopes 31, 32 being mounted in a single rotatable drum and two pairs of objectives being mounted in the carrier 4, one pair 41, 42 being shown. The periphery of the carrier 4 is provided with teeth which engage a bevelled gear 61. The gear 61 rotates about a shaft 62 which also carries the pin wheel 63 of a Geneva gear. A rotation of the carrier 4 through 90 degrees changes one pair of objectives for the other and rotates the wheel 63 through 180 degrees. A further 90 degrees rotation of the carrier 4 causes a slotted disc 64 coupled to the telescope 31, 32 to rotate through 90 degrees, a position in which the telescopes are effectively withdrawn from the optical axis of the microscope. By suitable rotation of the shaft 43 any desired combination and arrangement of the telescopes 31, 32 and the two pairs of objectives may be obtained. In a second embodiment the gearing on the carrier 4 engages a bevel gear attached to the telescope carrier, the bevel gear having teeth extending around a quarter of the periphery only.
Patent GB-498274-A (GB)
Title: Improvement in resilient wheels
IPC: B60C7/12
Filed: 1937-12-28
Abstract: 498,274. Vehicle wheels. ALMANDOS, L. R. Dec. 28, 1937, No. 35930. [Class 144 (ii)] A resilient wheel comprises a continuous or sectional pneumatic tube 3, fitted between side discs 1, 2 and extending to the hub, and a rubber tread ring 4 of the solid or cavity type. The base of the tread ring, which is preferably of tapering form as shown, may be vulcanized to the pneumatic chamber.
Patent GB-949389-A (GB)
Title: Improvements in or relating to coolers for example for containers for beverages
Inventor: KOMEDERA MIECZYSLAW
IPC: A47F3/04
Filed: 1960-10-20
Abstract: 949,389. Refrigerators. HEAT PUMP & REFRIGERATION Ltd. Oct. 12, 1961 [Oct. 20, 1960], No. 35945/60. Heading F4H. A cooling apparatus comprises a casing, a stepped shelf structure having at least one shelf with horizontal and vertical surfaces 5, 6, to which goods supported on the shelf may lose heat, and a refrigerative evaporator element 10 in heat exchange relationship with the surfaces 5, 6 and embedded in a mass 14 of heat conducting material, e.g. a mixture of granular silica and bitumen, forming a " cold bank". Vertical walls 1, 2, 3 of the casing are of decorative, thermally insulating material, with transparent extension pieces 7, 8, at the front and sides. The shelf structure has a sheet metal top 4 to which the evaporator 10 may be soldered, and a compartment below the shelf houses a refrigerant motor-compressor unit and condenser, a layer 12 of thermal insulation material on a roof 11 supporting the "cold bank " 14. A display stand in Figs. 3 and 4 (not shown), has a single cooled shelf at a higher level than an uncooled shelf. The shelf structure may alternatively be formed of resinbonded glass fibre, in which the evaporator 10 is embedded, or the evaporator element may comprise passages formed in the material of the shelf, e.g. by " roll-bonding."
Patent GB-1494857-A (GB)
Title: Antistatic composition comprising a plastics material or rubber
IPC: C09K3/16
Filed: 1975-09-02
Abstract: 1494857 Phosphorous oxide-containing antistatic agents WACKER-CHEMIE GmbH 2 Sept 1975 [9 Sept 1974] 36076/75 Heading C3P A mixed oxide of phosphorus and at least one of Si Ti,Ae. and Fe which has been produced by flame hydrolysis, is incorporated into plastics material or rubber as an antistatic agent. The mixed oxide preferably has a BET surface area of 15-400 m.<SP>2</SP>/g. and a P content of 0À1-30% by weight. It may comprise 0À05- 80% of the composition, which may be a powder, granulate, semi-finished or finished article (e.g. fleeces, woven goods and articles moulded, e.g. from foamed materials). Fillets (e.g. silicate fillers, siliceous chalk, silica, chalk, magnesite, phosphates, TiO 2 , Al 2 O 3  and iron oxide) may be present in amounts up to 80% of the mixed oxide: stabilizers, dyes, pigments, processing auxiliaries and modifying resins may also be present. In examples, (3) polyvinyl chloride and (4) vinyl chloride/vinyl acetate copolymer and a graft polymer of vinyl chloride and ethylene/vinyl acetate copolymer were used.
Patent GB-1484789-A (GB)
Title: Power supply circuits
IPC: G05F3/18
Filed: 1975-09-02
Abstract: 1484789 Automatic voltage regulation STANDARD TELEPHONES & CABLES Ltd 2 Sept 1975 36084/75 Heading G3X A regulated direct voltage is obtained by amplifying a voltage tapped from a potentiometer connected across two reference voltages each produced by a series combination of a stabilized current supply, a resistor and a Zenor diode. The first reference voltage is formed by amplifying the voltage appearing across the Zenor diode, and the second reference voltage is that produced at the junction of the current supply and the resistor. As shown, a constant current source is connected to one end of a potentiometer P and to a resistor Rl in series with a Zenor diode Vz. The other end of the potentiometer is connected to the output of a stabilized amplifier Al with a gain-varying resistor R3 and an input connected to the junction of the resistor R1 and the Zener diode Vz. The slider of the potentiometer P sets the value of a stabilized output voltage produced by an amplifier A2.
Patent GB-1004265-A (GB)
Title: A reduction valve and pressure operated switch mechanism, especially for water supply systems
IPC: F04D15/02
Filed: 1961-10-09
Abstract: 1,004,265. Regulating pumps. O. F. JOHNSEN. Oct. 9, 1961 [Oct. 10, I960], No. 36153/61. Heading FlA. [Also in Division H2] A reduction valve especially for water supply systems inserted between a discharge line and a supply line from a motor driven pump, comprises a pressure bell having an air cushion separated from the discharge line by a diaphragm, a pressure-operated switch for the pump motor acted upon by the pressure in the. discharge line, and a valve for regulating the water supply from the pump line to the discharge line, which valve is arranged with a by-pass, is double-acting and consists of a primary and a secondary valve arranged in parallel with respect to flow and each operated by the pressure in the pressure bell. Water is supplied by a pump through a passage 3, a non-return valve 12, a primary valve 20, and a chamber 18 to a discharge connection 6<SP>1</SP>. During normal discharge the air pressure in a bell 7 is somewhat greater than the water pressure in the chamber 18. When the discharge ceases the pressure of the water builds up and closes the primary valve 20, guided by ribs 13, but a by-pass 14 allows somewater to leak into the chamber 18. The pressure in the latter therefore increases still further until it exceeds the air pressure in the bell 7 and lifts a diaphragm 24 to bring a secondary valve seat 23, in disc 22 or diaphragm 24, clear of the valve stem 21. This allows the water to pass into the chamber 18 more rapidly, through a bore 21<SP>1</SP> in the valve stem 21, and lift the diaphragm 24 further. A permanent magnet 28, sliding on a pin 26, is raised with the diaphragm until it is against the underside of the bell 7 where it causes a switch 10 (see Division H2) to break the circuit to the pump motor. The non-return valve 12 then closes the passage 3 from the pump. A normal pressure-operated switch may be used. When the pressure at the discharge connection 6<SP>1</SP> drops sufficiently the pressure in the bell 7 forces the diaphragm 24 downwards and thereby closes the secondary valve 21, 23 and opens the primary valve 20. The magnet 28 remains suspended at the top of the bell 7 until pulled down by head 27 on the pin 26. When the magnet is released the pump motor is reenergized. The desired pressure in the bell 7 may be set up by connecting a non-return valve 8 with a bicycle pump or the like, the head 27 having sufficient clearance around its periphery to allow the passage of air into the interior of the bell 7. U.S.A. Specification 2,761,389 is referred to.