baber/WOPTO huggingface dataset:
Patent GB-956135-A (GB)
Title: Improvements in or relating to miners' flame safety lamps
Inventor: RICHARDS GLYN OWEN
IPC: F21L23/00
Filed: 1959-05-15
Abstract: 956,135. Igniting miners' lamps. COAL INDUSTRY (PATENTS) Ltd. Aug. 15, 1960 [May 15, 1959], No. 16735/59. Heading F4F. A miner's flame safety lamp is provided with an igniter comprising a catalyst and means by which the catalyst, a combustion supporting atmosphere and a flammable gas or vapour can be brought into contact with one another. In one form, the catalyst which may be a bead 4, Fig. 1 (Prov.), of platinum is carried by a pivoted arm 3 so that it can be brought close to the wick 2 of the lamp which is fed with fuel from the reservoir 1. A second reservoir 5 in the base of the lamp contains hydrogen which may be fed by a valve 6 to a capillary tube 8 so that a jet of hydrogen can be directed on to the bead 4 causing it to glow. In a modification, alcohol from a cylinder within the fuel reservoir may be projected onto a bead of iridium black, causing it to ignite. In a further modification, the flammable vapour which may be alcohol is contained in a tube 20 with an airtight lid 21, the tube being lined by a wick 27. The lid, which carries a bead 4 of platinum, iridium or palladium, is movable by a push-rod 23 against the action of a spring 24 so as to open the tube to the atmosphere in the presence of which the alcohol on the wick 27 is ignited and thence the fuel on the wick 2 of the main fuel tank.
Patent GB-1392651-A (GB)
Title: Rotating ring display
IPC: G04C3/14
Filed: 1972-04-12
Abstract: 1392651 Indicating apparatus H G DILL 12 April 1972 [24 May 1971] 16750/72 Heading G1J [Also in Division G3] An electronic wristwatch has rotating day, hour, minute and second rings, 17, 19, 21, 23 respectively, which are mounted on tracks, e.g. 63 Fig.5, on a ring-retaining block 49, and which have a plurality of U-shaped magnetic regions 67. Between stepping operations each ring is kept in position by the interaction of the regions 67 with a set of three permanent magnets 77, which are adjacent to the rings. Stepping is effected by selectively feeding electrical pulses to coils 79, which are wound on respective magnets 77, the pulses producing a magnetic field opposed to that of magnets 77 and causing a net thrust to be exerted on the ring to drive it from one rest position to the next. The pulses are produced by a control circuit Fig. 1 (not shown) comprising a time standard (91), e.g. a quartz oscillator, a frequency divider (93) and a decoder driver (95) which feeds three differently-phased pulse trains to the three coils 79 associated with each ring. In modifications there may be several sets of three magnets 77 associated with each ring or alternatively there may be only two such arrangements. Furthermore, instead of the cores 77 being permanent magnets the rings may have permanently magnetic regions. Figs.14a-c (not shown) depict rings and magnets 77 with alternative cross-sections to that shown in Fig.5. The rings 17, 19, 21, 23 are independently rotatable and may be corrected together or individually by switches 39, 41, 43, 45, which are pressure-sensitive, temperature sensitive or capacitive-sensing devices. Actuation of the switches causes a set-reset circuit 97 to feed pulses to the decoder-driver 95 to move the rings. The rings may be moved at two rates depending upon the duration of the actuation of the switches. Further circuitry may be provided to automatically compensate for any ring slippage. An arrangement in which the regions 67 are driven electrostatically is also envisaged.
Patent GB-1307713-A (GB)
Title: Diamond compacts
Inventor: HALL H T
IPC: B24D3/06
Filed: 1970-04-09
Abstract: 1307713 Abrasive articles MEGADIAMOND CORP 9 April 1970 [17 April 1969] 16845/70 Heading C4V A rigid diamond compact consists of discrete diamond particles bonded together by not exceeding an equal volume of a non-diamond abrasive substance having a Knoop (100 gram.) hardness of at least 1000. The bonding abrasive may be boron carbide, silicon carbide, titanium carbide, titanium boride, aluminium boride, silicon boride, zirconium carbide, aluminium carbide, aluminium oxide, tungsten carbide, boron nitride, hafnium carbide, niobium carbide, silicon nitride, beryllium carbide, vanadium carbide, silicon, tantalum boride, vanadium boride, beryllium oxide, magnesium oxide, aluminium nitride or boron phosphide. The diamond particles may be less than 325 mesh United States Standard particle size. The materials may be made by subjecting a mixture of the diamond particles and the abrasive or a progenitor of such a substance to a temperature of at least 900‹ K. and a pressure of not less than 10 kilobars at which diamond is crystallographically stable.
Patent GB-135888-A (GB)
Title: Apparatus for Measuring Quantities of Different Materials in Varying Proportions.
Inventor: LEA THOMAS
IPC: B28C7/04
Filed: 1919-04-16
Abstract: 135,888. Lea, T. April 16, 1919. Moving-chamber apparatus, with several chambers for delivering ingredients in desired proportions, for example for making concrete, in which a drum A rotates below a divided hopper 3, 1, 2 and has corresponding compartments 14, 15, 16 subdivided by radial partitions 17. The proportions delivered are varied by shutters 19 adapted to close any of the sectoral chambers. A rotating ribbed roller 28 or equivalent device may be arranged as shown, to remove surplus material from the drum compartments and so prevent clogging.
Patent GB-1208777-A (GB)
Title: Improvements in warp tension control means
Inventor: NORTON JOHN
IPC: D06B3/34
Filed: 1967-04-13
Abstract: 1,208,777. Warping yarns, tension control. LEESONA Ltd. 16 April, 1968 [13 April, 1967], No. 16947/67. Heading DIM. The yarns let off from a single or a number of beams 10 have their tension maintained constant by a device which adjusts the positions of weights 20 acting on the individual beam brakes. One beam 10 has a peg 13 which acts on a star wheel 30 as the beam rotates. The star wheel rotates a reduction gear 28 and thus an infinitely variable gear 29 to rotate a crank wheel 23, 26 whose rod 22 moves a rod 21 to adjust the positions of weights 20 acting on the band brakes 15. The initial braking load can be set by adjusting the relative positions of the wheels 23, 26. The wheels 23, 26 may be replaced by a solenoid operated ratchet wheel.
Patent GB-218832-A (GB)
Title: Improved knob-like device attachable to the back of a picture frame and to other surfaces
IPC: A47G1/16
Filed: 1923-07-02
Abstract: 218,832. Charles, W. J. July 2, 1923. Pictures &c., hanging on walls. -Buffers or protecting pads for attachment to the backs of picture frames and the like, consist of a pad a of rubber with a boundary flange a<3> fitting within a metal or other retaining socket c. The buffer is attached to a surface by a screw passing through a hole in a tongue c' on the socket so that it may pivot thereon to occupy various positions.
Patent GB-673527-A (GB)
Title: Improvements in or relating to bituminous compositions
Inventor: LAMB PETER ALEXANDER DAVID RUP
IPC: C08L95/00
Filed: 1950-07-07
Abstract: 673,527. Bituminous compositions. SHELL REFINING & MARKETING CO., Ltd. July 7, 1950, No. 17050/50. Class 22. A bituminous composition comprises 100 parts of a selected aggregate, 5-20 parts bitumen as a stable emulsion, 5-15 parts Portland cement, and 0.2-2 parts of a water soluble polyvalent metal halide or sulphate. Selected aggregate is defined in the Specification and as examples are given limestone, rhyolite, quartzite, flint, slag, china clay and granite. Preferred salts are calcium, magnesium and aluminium halides and aluminium sulphate, and especially as 10 per cent aqueous solutions. Water, in addition to that already present in the salt solution and emulsion, may be' added.
Patent GB-704269-A (GB)
Title: Improvements in and relating to the grinding of plate glass
Inventor: JONES HAROLD GAULBOURNE
IPC: B24B7/24
Filed: 1951-07-19
Abstract: A lead bronze alloy containing 5 per cent. to 30 per cent. of lead is used to form the operating surface of a disc-shaped grinding tool (see Group XXIII) for polishing rough rolled plate glass.  The Provisional Specification states that the lead content of the alloy may be between 5 per cent. and 40 per cent.  Six examples of the alloy are: copper 74 per cent., tin 5 per cent., lead 20 per cent., nickel 1 per cent.; copper 80 per cent., tin 2 1/2 per cent., zinc 2 1/2 per cent., 15 per cent.; copper 80 per cent., tin 10 per cent., lead 10 per cent.; copper 72 per cent., tin 2 per cent., lead 25 per cent., nickel 1 per cent.; copper 83 per cent., tin 12 per cent., lead 5 per cent.; copper 64 per cent., tin 5 per cent., lead 30 per cent., nickel 1 per cent.
Patent GB-904094-A (GB)
Title: Anesthetizing and gas therapy apparatus
IPC: A61M16/00
Filed: 1960-05-16
Abstract: 904,094. Respiratory appliances. STANTON, P. L. May 16, 1960 [Feb. 8, 1960], No. 17212/60. Class 81 (2). Respiratory appliance for connection with means for establishing a gas flow circuit between the lungs of a patient and a source of gas comprising inner bellows arranged within outer bellows in such a manne rthat the outer bellows when connected with the gas flow circuit will expel or receive gas upon relative increase or decrease of pressure respectively within the inner bellows. As shown, Fig. 1, a bellows 3 is connected to a hose 15 leading to a mixing chamber 6 to which anµsthetic gas or oxygen is supplied. A bellows 4 within the bellows 3 is connected by an L-shaped fitting 23 and a hose 24 with the inlet 44 of a Venturi unit 5 which also comprises a valved inlet 37 for compressed gas, e.g. air, and an outlet 42 which may be closed by a valve 45 or the operator's finger. When the inlet 37 is open and the outlet 42 closed, compressed air is drawn through the passages 40, 43 and 24 and expands the bellows 4, forcing anµsthetic gas from the space 27 between the two bellows through the hose 15, chamber 6, hose 8 and valve 16 to a mask 9. A framework 29 secured to the bellows 3 by straps 34<SP>1</SP> limits expansion and contraction of the bellows. An internal framework (not shown) at the neck of the bellows 3 prevents the bellows 4 from expanding so as to obstruct the flow of gas from the space 27. Some gas passes through the return line 12 and maintains an outlet valve 17 on the mask closed. The pressure in the patient's lungs is indicated on a gauge 21. To begin the exhalation phase, the operator opens the outlet 42 and compressed air passes to atmosphere, causing the bellows 4 to collapse and thus create subatmospheric pressure in the bellows 3. This causes the valve 16 to close and the valve 17 to open so that anaesthetic gas is withdrawn from the lungs into the space 27. Excess anµsthetic gas may be bled off through a valve 18 on the mask. The operation of the bellows 3 and 4 and the unit 5 in association with an anµsthetic gas flow circuit in which one hose is used for the inhalation and exhalation of gas is also described. The bellows are preferably of the form shown in horizontal crosssection in Fig. 5.
Patent GB-570470-A (GB)
Title: Process for the production of halofluoroalkanes
IPC: C07C17/278
Filed: 1943-10-20
Abstract: Halofluoroalkanes are prepared by reacting in the presence of a Friedel-Crafts catalyst, a halogenated methane containing at least three halogen atoms of which at least one is a fluorine atom and the remaining halogen atoms may be any halogen or halogens, with a halogenated ethylenic compound having at least one halogen atom other than fluorine attached to a doubly-linked carbon atom. Specified halogenated methanes are difluorochloro methane, difluorodichloro methane, and fluoroform.  Ethylenic compounds of the general formula RR1C = CR2X may be used, wherein R, R1 and R2 are hydrogen, halogen, alkyl or halogenated alkyl and X is halogen, the halogen in each case being any halogen other than fluorine, although chlorine is preferred. It is preferred to use ethylenic compounds carrying chlorine atoms on the double-bonded carbon atoms.  The reaction is preferably carried out at ordinary temperatures, say temperatures up to 30 DEG  C.  Aluminium chloride is the preferred catalyst, but other Friedel-Crafts catalysts may be used such as boron trifluoride, zinc chloride and ferric chloride.  The condensation products may be isolated by decomposing the catalyst with ice or cold water and distilling at ordinary or elevated pressure.  The products obtained are useful as dielectric fluids and cooling liquids.  In an example, dichloromonofluoro methane is reacted with tetrachloroethylene to give monofluorohexachloropropane.  Other ethylenic compounds specified are trichlorethylene, sym.-dichlorethylene, vinyl chloride, 1 : 2 : 3-trichlorpropene, 1 : 2-dichlor-1-hexene and sym.-dibromoethylene.  In a statement of prior art, reference is made to the preparation of chlorinated propanes through the condensation of such compounds as chloroform or carbon tetrachloride with trichlorethylene or tetrachlorethylene in the presence of aluminium chloride according to Prins' method and their subsequent fluorination with dichlorantimony trifluoride to give higher fluorinated propanes bearing a number of chlorine atoms.
Patent GB-208424-A (GB)
Title: Improvements in and in the manufacture of hollow glass struts or supports for fire extinguishing sprinklers
IPC: C03B23/07
Filed: 1922-06-23
Abstract: 208,424. Taylor, J., and Buckley, E. W. June 23, 1922. Sprinklers, automatic.-Hollow glass struts for sprinkler heads, as described in Specification 201,359, are made by sealing the end of a glass tube a by fusion, blowing it out in a mould d, filling with liquid according to the bursting point required, heating to the required temperature, sealing the outer end of the tube, allowing it to cool and form a partial vacuum, and then sealing off the capillary passage close to the bulb. The capillary tube a is drawn out into a thin stem before sealing to ensure uniformity of volume in all bulbs, and this stem may be broken before sealing to destroy the vacuum. Differently coloured liquids are used for bulbs of different bursting temperatures. Projection g, or it may be a recess, prevents the strut from turning out of position when in the sprinkler head. Reference has been directed by the Comptroller to Specifications 125,057 and 125,058.
Patent GB-204127-A (GB)
Title: Improvements relating to oil-immersed electric switches, circuitbreakers and the like
IPC: H01H33/55
Filed: 1922-06-23
Abstract: 204,127. Coates, W. A., and Metropolitan-Vickers Electrical Co., Ltd. June 23, 1922. Oil switches.-The tank of an oil-switch &c. is provided with two vents 3 and 4 at different levels, the upper vent 3 being permanently open to the atmosphere, and the lower vent 4 being normally open to the atmosphere but adapted to close when the pressure within the tank exceeds a certain amount. Any oil thrown up into the vent 3 when the circuit is broken is caught and returned by drains 11. The valve 6 of the vent 4 is controlled by gravity or by a spring.
Patent GB-1461834-A (GB)
Title: Amino-substituted tetracyclic compounds
IPC: C07C209/50
Filed: 1974-04-19
Abstract: 1461834 Amino-substituted tetracyclic compounds AKZO NV 19 April 1974 [2 May 1973] 17343/74 Heading C2C Novel compounds I (X is O, S, NR 7  or CR 8 R 9 ; R 1  to R 4  are H, OH, halo, 1-6C alkyl, alkoxy or alkylthio or CF 3 ; R 5  and R 6  are H, 1-6C alkyl, or 7-10C aralkyl; or NR 5  R 6  is a 5-6 membered heterocyclic ring; R 7  is H or 1-4C alkyl; R 8  and R 9  are H or CH 3 ; n is 0, 1 or 2; and the dotted line indicates an optional band) and salts thereof are prepared by known methods. Compounds II are prepared by condensation of vinyl methyl ketone with a compound III Compounds II may be reduced, using LiAlH 4 , to give the corresponding 2-hydroxy derivatives. These may be converted by known methods to the corresponding 2-mesyloxy-2-azido-, and 2- cyano-derivatives. 2 - Cyanomethylidene - 1,2,3,4 - tetrahydrotribenzo(b,d,f)oxepine is prepared by reaction of the appropriate compound II with acetonitrile and sodium ethoxide. 2 - N,N - Dimethylcarbamyl - methyl - 1,2,3,4- tetrahydro - 9H - tribenzo(b,d,f)cycloheptatriene is prepared by reaction of the appropriate compound II with triethyl phosphonoacetate/NaH to give 2-ethoxycarbonyl methyl-3,4-dihydro-9H- tribenzo(b,d,f)cycloheptatriene, catalytic hydrogenation of this and reaction with dimethylamine. The above-mentioned 2-cyano-derivatives may be hydrolysed to give the corresponding 2-carboxy-derivatives. Pharmaceutical compositions having C.N.S. activity comprise a compound I together with the usual carriers and/or diluents.
Patent GB-638564-A (GB)
Title: Process of and apparatus for obtaining finely divided precipitates
Inventor: LIMITED IMPERIAL CHEMICAL INDU
IPC: B01J19/00
Filed: 1947-07-01
Abstract: <PICT:0638564/III/1> In a process for the precipitation of substances from their solutions by addition of an auxiliary liquid which is neither a solvent for the substance nor miscible with its solvent, a thin stream or sheet of the solution is subjected to the action of thin jets of the auxiliary liquid whereby the stream or sheet is broken up into fine drops in which the precipitatable substance is precipitated in a fine state of division.  The auxiliary liquid may be preheated to evaporate the solvent and may contain an emulsifying agent.  As shown, a solution of chlorinated rubber in carbon tetrachloride or of benzene hexachloride in benzene is fed into chamber A, which may be externally heated, through nozzle B as a stream which is broken up into drops by jets of water at 90-95 DEG C. from nozzles C.  Hot water may also be fed through ring of jets D to trickle down the chamber walls.  Evaporated carbon tetrachloride or benzene and water vapour leave at G and are separated by cooling, while the precipitated chlorinated rubber or benzene hexachloride is carried down as a suspension in water to the bottom of chamber A, whence the suspension passes to separator E, wherein the precipitate is separated from the water which is recycled.  Boiling water or steam is injected as required at H to maintain the temperature and as replacement.ALSO:<PICT:0638564/IV (b)/1> As shown, a solution of benzene hexachloride in benzene is fed into chamber A, which may be externally heated, through nozzle B as a stream which is broken up into drops by jets of water at 90-95 DEG  C. from nozzles C.  Hot water may also be fed through ring of jets D to trickle down the chamber walls.  Evaporated benzene and water vapour leave at G and are separated by cooling, while the precipitated benzene hexachloride is carried down as a suspension in water to the bottom of chamber A, whence the suspension passes to separator E, wherein the precipitate is separated from the water which is recycled.  Boiling water or steam is injected as required at H to maintain the temperature and as replacement.  The water may contain an emulsifying agent.
Patent GB-365008-A (GB)
Title: Improvements in or relating to mercury switches
IPC: H01H29/22
Filed: 1931-06-15
Abstract: 365,008. Mercury switches. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 15, 1931, No. 17371. Convention date, June 18, 1930. [Class 38 (v).] Mercury switches have tapering or capillary extensions 7, 8 to the glass or quartz container where the latter is subject to shock from movement of the mercury. On tilting, the mercury is checked in the narrow extension, or gas is trapped therein and acts as a cushion.
Patent GB-612947-A (GB)
Title: Improvements relating to window regulators
IPC: E05F11/44
Filed: 1946-06-11
Abstract: 612,947. Window operating mechanism. WILMOT-BREEDEN, Ltd., and BURGESS, W. H. June 11, 1946, No. 17389. IClass 20(iii)] Window opening and closing apparatus, particularly for vehicles, comprises an arm c, or, as shown, a pair of arms simultaneously actuated, pivoted at d to a stationary support a and engaging the lower edge of the window b at its other end as by a roller c<1>. Intermediate the ends of the arm a lever f is pivoted at e, the free end of the lever being in slidable contact with a fixed abutment g and a spring b is anchored between the arm and the lever.
Patent GB-922791-A (GB)
Title: Article transferring apparatus
Inventor: DAWSON DAVID
IPC: B65B21/20
Filed: 1959-05-22
Abstract: 922,791. Packaging machines. DAWSON BROS. Ltd. May 19, 1960 [May 22, 1959], No. 17426/59. Class 94(1). ). [Also in Group XXX] A lifting device for groups of articles has an array of grippers 3, Fig. 3, the spacing between the grippers being varied by at least one pair of fluid pressure double cylinders. As described the device lifts bottles of various sizes into and out of crates. The bottles are marshalled in ranks in lanes the width of which can be adjusted to suit different sizes of bottle, the distance between the lane centres remaining unchanged. One or more lanes may be blocked off. The grippers 3 are mounted on spindles 4 which slide vertically in a frame 5 supported at 6 for vertical movement through a stroke that can be varied. Pneumatic cylinders A, B, Fig. 1, move the ranks of the grippers 3 towards or away from each other through linkages 14 and rods 8 and similar cylinders C, D move the files towards or away from one another through linkages 12a, 12b, 12c, 12d, 12e and 13. Pint, half-pint and one third of a pint bottles can all be lifted, the spacing between the bottles being changed to conform with the spaces in a suitable crate by movement of appropriate pneumatic rams, and the bottles lowered into the crate. The strokes of the rams differ and they can be operated independently or together to provide different ranges of movement, this being necessary as the pistons of the cylinder have only an " in " position and an " out " position. Once the required sequence of operations has been selected and set in motion the transfer of bottles is automatic. A single cylinder may be connected to each end of rods 8 through the linkage 14 instead of cylinders A, B. The device may also be used for decrating bottles.