baber/WOPTO huggingface dataset:
Patent GB-1210545-A (GB)
Title: Process for making trifluoromethyl ethers
IPC: C07C43/12
Filed: 1968-05-09
Abstract: 1,210,545. Trifluoromethyl ethers. FARBWERKE HOECHST A.G. 9 May, 1968 [9 May, 1967], No. 22056/68. Heading C2C. Trifluoromethyl ethers of the formula wherein R is a methyl or ethyl group, are prepared by reacting sulphonic or sulphuric acid esters of the formulµ respectively, with alkali-metal fluorides and carbonyl fluoride at 20‹ to 120‹ C., R<SP>1</SP> being a C 1-4  alkyl or an aryl radical. The compounds may be chlorinated to give trifluoromethyl chloromethyl or chloroethyl ethers, the second of which may be dehydrochlorinated to give trifluoromethyl vinyl ether.
Patent GB-811720-A (GB)
Title: Improvements in or relating to liquid flow control units
Inventor: NOON T CYRIL
IPC: F02C7/22
Filed: 1955-07-29
Abstract: 811,720. Automatic control systems. THOMPSON PRODUCTS Inc. July 29, 1955, No. 22079/55. Class 38 (4). [Also in Groups XXVI and XXIX] In a system for automatically controlling the fuel supply to a jet engine in which voltages dependent upon engine speed and tail-pipe temperature control through electronic apparatus a fuel flow control unit 15, Fig. 8, which includes a pilot valve 17 operated by a solenoid 44 responsive to variations in the signals from the electronic apparatus and operating a throttle valve 16 in the fuel supply line, the throttle valve comprising a double-landed valve piston 85, Fig. 4, is formed with a rack 92 which meshes with a pinion to adjust a potentiometer or variable resistance 86. The potentiometer is connected to a signal circuit in the electronic apparatus which feeds into an amplifier connected to the solenoid so that the time constant of the unit may be matched to the engine in response to variations in fuel flow as indicated by the throttle valve position. Specification 767,622 is referred to.
Patent GB-1499362-A (GB)
Title: Apparatus for separating a filtrate and a concentrate of solids from a solids-containing fluid
IPC: B01D33/17
Filed: 1975-02-07
Abstract: 1499362 Filter for concentrating slurry ARTISAN INDUSTRIES INC 7 Feb 1975 [13 May 1974] 22105/77 Divided out of 1499361 Heading BID A filter comprises a cylindrical housing with a slurry inlet at one end and an outlet for concentrated slurry at the other enclosing a plurality of flat annular elements (19) and a relatively rotatable assembly of discs 21' spaced between pairs of elements (19) and mounted on a coaxial shaft 20 (Fig. 1 not shown), each disc having one or more apertures 40 adjacent its central hub 22 with a plough 42, inclined for example at 15‹ to the plane of the disc, adjacent its downstream side. Elements (19) and discs (21') may either or both be constructed as filter elements or solid elements in various combinations. As shown discs (21') are solid and elements (19) are filter elements. Most of the slurry flows sinusoidally, radially inwards across one side of each filter element (19) and outwards across the other side, but apertures 40 allow a minor proportion to flow axially along the aligned hubs 22, and ploughs 42 assist this flow. The outer periphery of each disc 21' and the inner periphery of each filter element (19) may also carry ploughs (30, 48) to prevent solids accumulating. Each element (19) has internal filtrate drain passages and an outer flange (18) which forms part of the housing wall when the elements are clamped together. The elements (19) and housing could rotate instead of or at a different velocity from discs 21'. The ploughs may assist when a filter is cleaned by passage of wash liquid prior to filtering a new slurry.
Patent GB-392142-A (GB)
Title: Improvements in and relating to coachwork
IPC: B62D31/00
Filed: 1931-08-05
Abstract: 392,142. Vehicle bodies. LUDEWIG GES., GEB., 199, Steelerstrasse, Essen, Germany. Aug. 5, 1931, No. 22245. Convention date, Aug. 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 108 (i).] A vehicle body frame is subdivided by additional members so as to present a great number of spaces which are covered by a corresponding number of coverings or panels in such a way that adjacent coverings or panels do not touch one another as shown in Fig. 3.
Patent GB-1172572-A (GB)
Title: Fuel for Nuclear Reactors
IPC: G21C3/58
Filed: 1967-05-15
Abstract: 1,172,572. Fuel elements. SOC. BELGE POUR L'INDUSTRIE NUCLEAIRE, S.A. "BELGONUCLEAIRE" 15 May, 1967 [7 June, 1966], No. 22406/67. Heading G6C. A nuclear fuel rod is composed of a stainless steel tube containing granular fuel material. Grains of different sizes are employed in order that the interstices between the larger grains may be filled by the smaller grains when the tube is vibrated to compact the material. Initially, a fuel powder is formed, by pressure, into grains which are then sintered and thereby slightly reduced in size. A proportion of the sintered fuel is crushed to produce smaller grains. A mixture of the different sized grains is placed inside the fuel tube which is vibrated. The fuel is a mixture of plutonium and uranium oxides.
Patent GB-965598-A (GB)
Title: Improvements in communication exchange installations
Inventor: WEISIGK GUNTHER
IPC: H04Q3/00
Filed: 1962-06-12
Abstract: 965,598. Automatic exchange systems. ALBISWERK ZURICH A.G. June 12, 1962, No. 22444/62. Heading H4K. In a house satellite of which some at least of the subscribers are connected also to a main exchange, a subscriber's private wire is marked with different potentials according as his line is idle, busy in a local house call or busy in an exchange call, and metering is also effected over the same wire. For testing, the marker ZM includes a saturated core transformer IM. The potential at P1 is - 37 V, and in the case of an idle line the c wire is at - 48 V, whereas for a busy line it is at - 33 V or - 24 V. In the idle condition current flowing through winding W1 reverses the magnetic state of the core. When relay Q1, for example, energizes, current in winding W2 switches back the core and produces a pulse in winding W3 to operate relay C1 and an impulse in winding W1 to operate cut-off relay T. In the event of a wanted satellite subscriber being busy, provision is made for camping, and relay NE controlled by transistor Ts1 operates when the line becomes idle. A further test circuit included in the operator's equipment PS determines whether a wanted line is busy in a local call or in an exchange call. The potential at P3 is - 29 V, and relay HG controlled by transistor Ts2 operates in the former case. When a call is initiated, a marker ZM is taken into use, the calling number is determined by relays T1, H1, Z1, E1 and the line is connected to an idle satellite link HVS. The selection digits are stored in a register RG and a marker ZM is reseized to connect HVS to the wanted line. If, however, the first digit indicates an exchange call, HVS is released and the line is connected instead to an exchange link AVS, from which the subscriber receives dialling tone. In the case of an incoming exchange call, the operator keys the number into the register RG and AVS is controlled by a marker ZM. Identification is initiated from the register RG or from the operator's equipment PS by the discharge of capacitor C through winding W1 of a saturated core transformer Vc, thus giving rise to a pulse of +96V on the c wire and operation of the appropriate relays. In the event of an exchange call, metering pulses of - 20 V are applied over the c wire from AVS to operate meter Z. Further circuits are described, Figs. 2 and 3, for enabling the meter Z to respond to metering pulses but not to identification pulses.
Patent GB-1191820-A (GB)
Title: Explosive Compositions
IPC: C06B47/14
Filed: 1969-05-02
Abstract: 1,191,820. Explosive compositions. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 2 May, 1969 [13 May, 1968], No. 22507/69. Heading C1D. An explosive slurry composition comprises an inorganic nitrate, chlorate or perchlorate, a fuel, water, and, as a sensitizing additive, a condensation product of 8 to 30 moles of a lower alkylene oxide with one mole of an octyl phenol, a nonyl phenol, a tributyl phenol, or a saturated carboxylic acid of 8 to 24 carbon atoms, e.g. caprylic, lauric, myristic, pentadecylic, palmitic, stearic, or arachidic acid, or coconut fatty acid. The alkylene oxide may be ethylene oxide to which may be added propylene oxide or butylene oxide. The inorganic salt may be ammonium nitrate with or without sodium nitrate; the ammonium nitrate may be coated with china clay. Fuels specified are TNT, RDX, HMX, tetryl, PETN, nitrocellulose, nitrostarch, urea, sugar, molasses, alcohols, glues, sulphur, aluminium, silicon, magnesium, titanium, boron, ferrosilicon, charcoal, anthracite, asphalt, sawdust, flour, dextrin, and starch. Other additives referred to are guar gum, zinc chromate, tartaric acid, and ethyl hexanol.
Patent GB-730448-A (GB)
Title: Improvements in and relating to domestic hot water boilers
Inventor: PEAKE COLIN ALBERT
IPC: F24B1/183
Filed: 1953-08-14
Abstract: 730,448. Open fireplaces. KINGSWORTHY METAL PRODUCTS, Ltd. Aug. 14, 1953, No. 22512/53. Class 126. In a domestic heating installation, a back boiler having inlet and outlet pipe connections on its upper face is detachably supported by side plates which extend above the boiler to form a chamber for the pipe connections, and a frame plate forming a seating for a detachable damper plate connects the upper ends of the side plates and a detachable front plate encloses the front of the pipe connection chamber so that the boiler fittings may be reached and the boiler removed after removal of the damper plate and front plate. Each side plate comprises a lower portion 6, supporting the boiler 1 on its upper edge, a web 8 spacing the boiler 1 from a back plate 16 which forms the back of the boiler flue, and an upper part 7 which forms a side of a chamber for the pipe connections. Slots 10 in the upper parts 7 of the side plates allow the pipes 12, 13 to be led from the boiler. A U-shaped frame 20, forming a seating for a slidable damper plate, is provided with forward extensions 24 which locate the complete casing with respect to the fireplace side cheeks A. The back of the flue is completed by a second back plate 19, and a deflector plate 32 is mounted at the top of the back of the boiler. Specification 717,009 is referred to.
Patent GB-308562-A (GB)
Title: Dimming device for head lights
IPC: F21V14/08
Filed: 1928-08-03
Abstract: 308,562. Chaudet, G. March 24, 1928, [Convention date]. Void [Published under Sect, 91 of the Acts]. Motor-vehicle head lamps; lantern screens.- A dimming device comprises a translucent coloured screen 1 of celluloid, glass, or other material adapted to fit over the front of the head lamp and having two or more apertures 2, 3 one of which is at the centre. The screen is preferably coloured yellow and has a peripheral leather band 4 connected by rings 5 to straps 6 fixed at their other ends to a strap 7 adapted to be secured around the body 8 of the lamp. Other fixing means such as rubber bands or metal clips may be used.
Patent GB-1293849-A (GB)
Title: Improvements in articles of hosiery footwear
Inventor: TODD SYDNEY HOWARD
IPC: D04B9/46
Filed: 1970-05-09
Abstract: 1293849 Hosiery WOLSEY Ltd 7 May 1971 [9 May 1970] 22539/70 Heading D1K Hosiery footwear has its leg and foot, foot or sole of float or miss stitch structure in which an absorbent yarn forms the major part of the inner face, and a wear resistant yarn presents a substantial part of the outer face. The structure comprises alternate courses of loops of the latter yarn and courses of the former including floats. The absorbent yarn is knitted in spaced wales, which may be staggered from course to course, and floated across the interveening wales.
Patent GB-597845-A (GB)
Title: Improvements in or relating to refractory composite masses
IPC: C04B35/16
Filed: 1945-09-03
Abstract: A process for the construction of a refractory composite mass for a furnace comprises assembling angular blocks of magnesian olivine or magnesian dunite, filling the voids and joints between the blocks with angular compact fragments or chips of magnesian olivine or magnesian dunite with or without a bonding agent and if desired the voids between the said fragments or chips with still smaller fragments of magnesian olivine or magnesian dunite. The smallest fragments may consist of magnesian olivine sand having a grain size of from 0.0625 to 0.0227 which may be associated with a proportion of magnesian olivine flour having a particle size of less than 0.007 in. The bonding material may be magnesium oxide or hydroxide, chrome magnesite, magnesian, calcareous or aluminous hydraulic cements, leucite, feldspar or borates of magnesium, such materials being preferably introduced as an intimate mixture with the finely comminuted olivine.  The proportion of magnesian olivine sand to bonding material may be not less than 1 to 1 and preferably not less than 2 to 3 to 1 by weight.  The angular blocks may be set on a bed of olivine sand associated with a proportion of olivine flour, and the packing may be built up within a refractory surrounding frame, border or fence of hewn or sawn dunite blocks or masonry of refractory bricks.
Patent GB-260716-A (GB)
Title: Improvements in or relating to the construction of electric discharge tubes
IPC: H01J5/28
Filed: 1925-09-10
Abstract: 260,716. General Electric Co., Ltd., and Le Rossignol, R. Sept. 10, 1925. Vacuum tubes.-A metal structure forming part of the envelope of a discharge tube consists of at least two parts which are joined together by electro-deposition in such a way that the deposited metal may be removed and the parts separated and re-assembled. As shown, a metal ring 1 fused to a glass tube 2, and a part 3 forming the anode, are provided with annular flanges 4, 5 preferably with the top face of the range 5 inclined so that the outer edge makes line contact with the ring, and metal 7 is deposited over the joint and may be filed or burnished so as to ensure a compact deposit. The deposited metal may be copper with a coating of silver. The ends of the ring and anode may be screwed together. In another arrangement the envelope has a central metal part and two end metal parts sealed into glass. Specification 257,999 is referred to.
Patent GB-461320-A (GB)
Title: Improvements relating to liquid fuels
IPC: C10L1/23
Filed: 1935-08-10
Abstract: Diesel fuels are primed with nitroxyl ethylene chlorhydrin <FORM:0461320/III/1> hydrin.  For example, 0,5--5,0 per cent of primer is added to the 160--320 DEG  C. fraction of coal or petroleum oil.  The primer may be added as a solution, e.g. in part of the fuel oil. According to the Provisional Specification, halogen-substituted nitro-bodies of low volatility are used as the primers, replacing a mixture such as ethyl nitrate and butyl bromide; specified primers are the above hydrins, and the mono-, di-, and tri-brom-nitromethanes.
Patent GB-264094-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C13/00
Filed: 1926-09-15
Abstract: 264,094. Bikkers, A., and Naamlooze Vennootschap Maatschappij tot Exploitatie van Brandbluschmiddelen Bix. Sept. 15, 1926. Portable pressure reservoirs.-A fire-extinguisher of the kind comprising a container 1 charged with a liquid 2 under pressure and having a discharge valve 6 and outlet 7 is provided with a weighted dip tube 8 which is flexible over the upper part of its length only, and rigid over the other part. An outlet 10 at the bottom of the container is held closed by a ball-valve 11 and fusible link 13.
Patent GB-1003256-A (GB)
Title: Improvements in or relating to moving coil microphones
Inventor: ORD MICHAEL LAWRENCE GAYF
IPC: H04R9/08
Filed: 1962-06-14
Abstract: 1,003,256. Microphones. STANDARD TELEPHONES & CABLES Ltd. June 14, 1962, No. 22849/62. Heading H4J. In a microphone having a bass equalizing tube located behind the diaphragm and forming part of the structure of the device, a casing is retained in position by means of a retaining member which engages the tube. A peripherally supported diaphragm 5 carries a voice coil which is free to move in an air gap between polepieces 3, 4 of the magnet system 1, 2, an apertured steel plate 6, acting as a flux path in parallel with the air gap, being retained in position by the flux passing through it. The bass equalizing tube 8 is attached to the magnet and is provided with a hole 10 which communicates with the air behind the diaphragm via aperture 19 and also serves as an outlet for the cable 9, the leads in the latter being connected to insulated tags 11, 12. A bronze washer 17 which acts as an acoustic resistance is located behind the air gap by a resilient sleeve 18 e.g. of rubber. The casing 14 is retained in position by means of a nut 15 threaded on to tube 8 although other forms of attachment e.g. a circlip engaging a groove in the tube or resilient fingers on the casing which engage a groove in the tube, are suggested. The space inside the casing may be filled with sound-absorbent material. Specification 851,503 is referred to.
Patent GB-1509705-A (GB)
Title: Monitoring gas fuel burners
IPC: F23N5/12
Filed: 1975-05-22
Abstract: 1509705 Burner controls PACTROL CONTROLS Ltd 22 May 1975 [22 May 1974] 22852/74 Heading F4T A circuit for monitoring the presence of a flame of a gas burner and for controlling a fuel line of the burner in dependence upon the presence of the flame comprises a probe 16 connectible to an A.C. source and locatable in a combustion area of the flame, so that an A.C. signal is applied to the probe to be rectified by ionization when the flame is present, means being coupled to the probe and triggerable by the A.C. signal to convert the rectified signal into a pulsed signal, and switch means switchable by the pulsed signal from a first to a second switched state for opening a valve in the fuel line to the burner. An A.C. signal is applied from input 12 to flame probe 16 by way of a capacitor 18 and resistor 20, and when a flame is present the signal is rectified and during the negative half-cycle the signal is smoothed by a resistor 22 and a capacitor 24, whilst a transistor TR3 is driven by resistors 20, 42, and capacitor 40, by an A.C. signal applied across inputs 12, 14, thus removing the rectified signal applied to the base of transistor TR1 and applying a pulsed D.C. signal to transistor TR1. This smoothed signal is applied to the base of transistor TR1 via resistors 28, 30, and thence to line 26 via a Darlington circuit TR2, the collectors of transistors TR1, TR2, being connected to terminal 12 via resistor 32, and diode 34, and to line 26 via a capacitor 36 and either a solenoid 38 of a relay (not shown) to control the fuel valve or a parallel diode 44. The circuit of Fig. 1 may be modified to include an additional capacitor 45, Fig. 2. A timing circuit (50) Fig. 3 (not shown), can be used with the flame sensing circuit of Figs. 1 or 2.
Patent GB-442290-A (GB)
Title: Improvements in or relating to flooring and the like
IPC: E04F15/04
Filed: 1934-08-07
Abstract: 442,290. Composite wooden blocks. LAWRENCE, A. W., 642, Brush Hill Road, Milton, Massachusetts, U.S.A. Aug. 7, 1934, No. 22854. [Class 145 (ii)] [See also Groups X and XXV] A covering for floors, walls, and like surfaces comprises a plurality of wood units disposed in edge to edge contact and having their co-operating edges recessed to receive one-piece metal securing elements 30, which are formed to a substantially V - cross-section as shown in Fig. 4, and are adapted to be secured to the substructure by means of a nail 40 or the like passing angularly through the element, as shown in Fig. 2, in a direction to crowd each unit laterally against the unit previously laid and to secure the unit to the substructure. Each securing element 30 is provided with lateral flanges to enter grooves 16 in the edges of the units, and the edge portions of the units below the grooves 16 are cut away to accommodate the V-shaped portion 32 of the element, which rests upon the substructure. The length of each element 30 measured longitudinally of the paving or other unit is shorter than the distance between adjacent elements. The element 30 is provided with a hole 34 in one or both of its inclined walls, and the nail 40 which passes through one of these holes also passes through the adjacent unit. Each unit may be formed of a number of blocks 12 which are connected together by metal fasteners 22, Figs. 2 and 3, engaging in co-operating recesses 14 of the blocks and having upstanding projections 24 formed by bending full-thickness parts of the strip outwardly of the plane of the strip. In a modification, these fasteners may be formed by metal strips 26 having their ends inwardlyturned as shown at 28, Fig. 8, to prevent withdrawal of the strips from the blocks. The sum of the widths of the fasteners 22 measured along the co-operating edges of two adjacent blocks is less than one-half the length of the blocks along such edges.
Patent GB-705488-A (GB)
Title: Improvements in or relating to buttons
IPC: A44B1/04
Filed: 1949-09-05
Abstract: 705,488. Buttons. BLAIR, J. Dec. 5,1950 [Sept. 5, 1949], No. 22900/49. Addition to 622,990 and 633,613. Class 43 The method of attaching the removable head of the button described in Specification 633,613 is modified by providing the head 1 with an inwardly directed peripheral flange or rim 3 to engage the ends of arms 8, 9 extending laterally from the shanks 6, 7, the shanks being bent inwardly at right-angles to the plane of the arms 8, 9 in order that they may be pushed through two of the holes in a button and then bent outwardly behind ,the button. Fig. 2 shows the shanks 6, 7 and lateral arms 8, 9 cut from a single sheet of metal, and before the bending of the shanks. The ends of the arms are cut or slit at 10 to provide resilient fingers 11 which are inserted into a pair of diametrically opposite slots 5 in the flange 3 and the arms are then moved around so that their ends engage behind the flange. When the head is secured to a button the junction of the members 6, 7 and 8, 9 is dished or bowed inwardly by the pressure of the bunch of threads which secures the button and is received in the cavity 2 of the head 1, the free ends of the arms 8, 9, maintaining engagement with the internal flange 3. The head 1 may be made of thermo-setting or thermoplastic material, or of wood, metal, or other material.
Patent GB-614818-A (GB)
Title: Improvements in operating mechanism for lift gates
IPC: B66B13/12
Filed: 1946-08-01
Abstract: 614,818. Lift gates. DEWHURST, M. Aug. 1, 1946, No. 22970. [Class 78 (iii)] A device for releasably coupling the cage and landing gates comprises a pair of links 4 pivoted together at 5 and pivotally connected at 6 to plates 7 which are slidably mounted in vertical guides 8 on the cage gate and are urged towards each other by springs 11 to project the links into a recess in the landing gate, pivotally mounted bell-crank levers 12 being provided to collapse the links when the gates are closed by striking a slamming post 13 which causes them to rotate and move the plates 7 apart. Inward travel of the plates is limited by the bell cranks 12 engaging stops 14. The recess in the landing gate is in the form of a vertical channel formed by a pair of anglesection strips. The links and the plates may be made from moulded plastic material.