baber/WOPTO huggingface dataset:
Patent GB-1362682-A (GB)
Title: Electrostatic reproduction sheets and compositions for making such sheets
IPC: G03G5/05
Filed: 1971-07-16
Abstract: 1362682 Electro-photographic element DENNISON MFG CO Ltd 16 July 1971 [29 July 1970] 33495/71 Heading G2C An electro-photographic element comprises a layer comprising an insulating binder containing particles of a photo-conductive material and having embedded therein non-photo-conductive filler particles of irregular shape having an average particle size greater than that of the photo-conductive material and having at least one cross-sectional dimension which is 5Á or more. In the embodiments conductive paper is coated with a dispersion of ZnO and filler particles in a toluene solution of an acrylic resin and a mixture of sensitizing dyes. The filler particles may be talc, asbestine, diatomaceous silica, ground glass, cellulosic particles or fibres, leather fibres, polyethylene, rayon or water-insoluble proteins. The filler particles may have one dimension greater than the thickness of the layer.
Patent GB-425425-A (GB)
Title: Improvements appertaining to high speed gearing
IPC: F16P1/02
Filed: 1933-11-30
Abstract: 425,425. Cooling toothed gearing. CROFT, A., c/o Crofts (Engineers), Ltd., Thornbury, Bradford, Yorkshire. Nov. 30, 1933, No. 33544. (Class 80 (i)] The ribbed casing D, E of worm - and - wheel gearing A, B, is cooled by a fan 2<a> mounted on the worm - shaft C, the vanes 2b of the fan being shrouded by a flange 2<c> for safety. An additional fan 4, preferably provided at the opposite end of the worm-shaft, draws air in through an opening d in a cowl 5 and forces it along the ribs 5a of the lower part E of the casing. The opposed streams of air from the two fans meet at about the middle of the ribbing 5<a> and produce an upward stream which cools the upper part D of the casing.
Patent GB-1019970-A (GB)
Title: Self-sealing coke-oven door
IPC: C10B25/16
Filed: 1964-08-17
Abstract: A self-sealing coke-oven door, of the kind which has a door body mounting a slidable sealing frame riding on and frictionally clamped to a fit surface extending around the outside of the door body, has the outer surfaces of its sealing frame inclined with respect to the direction of adjusting movement of the sealing frame, and has pressure means for clamping the sealing frame on the fit surface with heads with correspondingly inclined surfaces to mate with the outer surfaces of the sealing frame and oppose rearwards movement of the latter, on the door body, by wedge action.  Door body 1 has retaining frame 2 holding refractory door plug 3 at the front of the door; oven chamber aperture 4 is surrounded by oven chamber door frame 5 having flat sealing surface 6.  When the door is closed sealing frame 7 with knife-edge 8 bears against sealing surface 6, inner surfaces of 7 bearing on fit surface 10 of the door body with interposition of soft seal 11, by means of bolts 13 which extend through slots 12 in the frame <PICT:1019970/C4-C5/1> and in the door body and are clamped by self-locking wedges 14; the head of each bolt 13 is preferably rectangular and its surface 16 is inclined to mate with the corresponding inclined surface 9 of the sealing frame 7.
Patent GB-486558-A (GB)
Title: Process for the thermo-electric production of magnesium
IPC: C22B26/22
Filed: 1936-12-07
Abstract: 486,558. Metallurgical furnaces. AMERICAN MAGNESIUM METALS CORPORATION. Dec. 7, 1936, No. 33590. Convention date, Jan. 10. [Class 51 (ii)] In the production of magnesium from oxidic compounds in an electric furnace, the charge in plastic form is fed continuously into the heating-chamber 1 from below through a passage 4 of gradually increasing cross-section and under such conditions that the incoming material seals the charging passage against escape of gas and vapour. As shown, charging is effected by a screw conveyer 6 and a reciprocating ram 7. The charge consisting of finely ground magnesia and carbon, is made plastic by the addition of about 5 per cent of tar or other carbonizing binding-agent, the degree of plasticity being such that the material will cohere under pressure so that it will remain in the conduit 5 when the piston is retracted, but will be sufficiently fluid before it has been subjected to high pressure to be able to flow into the space in front of the piston.
Patent GB-892682-A (GB)
Title: Improvements in or relating to headsets
Inventor: WHITE PERCY GEORGE
IPC: H04M1/05
Filed: 1958-10-21
Abstract: 892,682. Head-sets. AIRMED Ltd. Jan. 20, 1960 [Oct. 21, 1958], No. 33626/58. Class 40 (4). A microphone 19 is carried on a boom 6 which is slidably mounted in a housing 13 pivotally attached to a yoke 7, 12 which is supported on an earpiece 2 by a tubular swivel pin 8, the microphone leads 18 being threaded through an internal bore of the boom 6 and then through a hole 20 in the side wall of the boom, through a slot 21 extending along one side of the housing 13, and through the tubular swivel pin 8.
Patent GB-840299-A (GB)
Title: Pneumatic window lift
IPC: E05F15/08
Filed: 1958-10-21
Abstract: 840,299. Window operating apparatus. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Oct. 21, 1958 [Nov. 13, 1957], No. 33654/58. Class 20(3) [Also in Group XXVIII] A vehicle window 10, Fig. 1, is moved vertically by means of a scissors linkage 12, 24 actuated by a pneumatic motor 18. On moving the handle 38 of a valve block 40, air under pressure is admitted through line 44 or 46 to one or other end of motor 18, the opposite end being vented to atmosphere. The piston 32, Fig. 2, is provided with passages 80, 82 closed by spring pressed valves 88, 90, the arrangement being such that should the window 10 meet an obstruction and pressure consequently build up on one side of the piston 32, above a certain pressure it is vented to the opposite side of the piston, and thus to atmosphere, to prevent -damage to the mechanism or injury to passengers. The window is locked by a surface 60 of an opening 62 in a locking member 56, engaging an extension rod 64 on the piston 32. On admitting air under pressure through either port 34 or 36 to the cylinder 50, a valve 72 is moved to allow air to pass through passage 70 to release the locking member 56 before the piston 32 moves.
Patent GB-300906-A (GB)
Title: An improved pipe coupling
IPC: F16L13/11
Filed: 1928-11-16
Abstract: 300,906. Eternit Pietra Artificiale Soc. Anon. Nov. 19, 1927, [Convention date]. Sleeve joints with packing compressed radially on assembly; joints held by cementitious materials; jointing apparatus.-Fluid-tightness between the ends of two pipes is secured by means of rubber packing rings c, c<1> Fig. 1, which are compressed between the said pipe ends and an external sleeve a having bellmouthed ends b. The sleeve a is initially mounted on the right-hand pipe say, at a distance equal to the length of the sleeve, and the rubber ring c threaded onto the pipe so as to abut against it, after which the ring c<1> is threaded onto the end of the other pipe. The pipes are then brought into alignment and the sleeve is forced over the two packing rings into a symmetrical position with respect to the pipe ends by means of a draw-tool, which consists of tongs adapted to be clamped firmly on the pipe and two screwthreaded drawing rods each provided at their free end with a jaw adapted to grip the rear end of the sleeve. The joint is preferably completed by mortar d inserted into the two mouths of the sleeve which may be provided, as shown, with internal projections 1, 2, Fig. 2, or grooves, Fig. 4; the projection 2 however may be constructed to approach closely the surface of the pipe in which case the mortar may be eliminated at that end.
Patent GB-1093957-A (GB)
Title: Improvements in car washing apparatus
IPC: B60S3/04
Filed: 1966-05-24
Abstract: 1,093,957. Washing vehicles. KWIKI SYSTEMS Inc. May 24, 1966 [March 3, 1966], No. 33715/67. Divided out of 1,093,956. Heading B7J. The subject-matter of this Specification is described in Specification 1,093,956 but the claims differ.
Patent GB-798006-A (GB)
Title: Improved method for removing chlorates and chlorides from concentrated electrolytic sodium hydroxide
IPC: C01D1/32
Filed: 1956-11-05
Abstract: Chlorate and chloride are removed from an aqueous 40-55 per cent sodium hydroxide solution by the addition of ferrous sulphate at a temperature of 20-80 DEG  C., preferably 50-60 DEG  C., so as to reduce chlorate to chloride and precipitate complexes containing sodium chloride in accordance with the equation: <FORM:0798006/III/1> The ferrous sulphate may be added as a 20 per cent aqueous solution. The time of treatment may be 2-12 hours.  In an example a 49.6 per cent solution of sodium hydroxide containing 1.87 per cent of sodium chloride and 0.14 per cent of sodium chlorate based on the sodium hydroxide is treated with the stoichiometric amount of 20 per cent ferrous sulphate at 60 DEG  C. with stirring for three hours.
Patent GB-1187284-A (GB)
Title: Apparatus for Marking the Location of Indicia on a Film
Inventor: DIAMOND ROBERT ANDREW
IPC: H04N5/253
Filed: 1967-07-21
Abstract: 1,187,284. Photo-electric apparatus. VICKERS Ltd. July 17, 1968 [July 21, 1967], No.33786/67. Heading G1A. The locations on a tape of those cells or particles which have particular characteristics, are indicated by a photo-electric scanning system controlling a marker device to mark the tape when such specimens are encountered. Once marked, the tape can be played back and will automatically stop at a marked cell to allow further detailed microscopic examination of this cell. The photo-electric system comprises a lens system directing light from the moving tape 1 on to a mirror drum 2 rotating in a plane at right angles to the direction of movement of the tape. The light is reflected through slit 4 and a neutral density filter 6 to a photo-multiplier 5 which produces a pulse output, the amplitude and length of the pulse respectively representing the optical density and size of the cell being scanned at that instant. After amplification, the pulse is applied to amplitude discriminator and pulse shaper 8 and pulse width selection circuit 9. Only pulses within a certain amplitude range and having a length between predetermined limits get through circuits 8 and 9 to actuated marking device, which punches a hole in the tape next to the cell. In an alternative scanning arrangement, the photo-multiplier is positioned on one side of the tape with the rotatable mirror drum and a light source on the other. The cells may be specimens taken in diagnosis by exfoliative cytology.
Patent GB-340695-A (GB)
Title: Improvements in refrigerating apparatus of the absorption type
IPC: F25B15/10
Filed: 1929-11-06
Abstract: 340,695. Refrigerating. ROOS, G., 12, Valhallavõgen, Stockholm. Nov. 6, 1929, No. 33806. [Class 29.] In a continuously-acting absorption machine using an inert gas, the evaporator 12 and the watercooled absorber 8 are connected by ducts 14, 25 which form a circulation path from the top to the bottom of the absorber for the inert gas in which the refrigerant vapour from the evaporator is entrained. The weak liquor in the generator is raised by a part of the vapour generated up the pipe 5 to the pipe 4 by which it is distributed over the inside of the absorber and the outside of the ribbed water-cooled vessel 17. The remainder of the vapour passes directly to the water-cooled condenser 9 through the pipe 3. Modified arrangements of the ducts 14, 25 are described.
Patent GB-191371-A (GB)
Title: Wheel for perambulators and other applications
IPC: B60B1/00
Filed: 1922-12-12
Abstract: 191,371. Boussagol, R. A. Jan. 9, 1922, [Convention date]. Spokes, securing and adjusting.-The hub of a perambulator or toy vehicle wheel comprises flanged sleeves fitting on a tube 5. The sleeve 3 is closed at the end and forms a cap fitting over one end of the tube 5, and the sleeve 4 is slidably mounted on the tube. The wheel spokes 21 hook in tongues 6 formed in the flanges 1, 2. A circular groove 7 at the end of the sleeve 4 has diametrically opposed holes 10, 11 and is adapted to receive a key 8 of steel wire of the form shown in Fig. 4, the ends of the wire engaging in the hole 10, and the middle portion in the hole 11. To ensure wedging of the key 8, the end of the tube 5 has a circular bevel 9 in which are formed parallel notches 12, 13, and the tube 5 fits over an axle part 15 which has grooves 16 corresponding to the grooves 7. To assemble the wheel, the sleeves 3, 4 are placed adjacent one another on the tube 5 with the holes 10, 11 parallel to the notches 12, 13, the spokes 21 are inserted and the sleeves moved apart until the groove 7 is clear of the bevel 9. The key 8 is then inserted in the groove and the sleeve 4 released, the resiliency of the spokes moving it inward until the key 8 locks by wedging between the groove 7 and the bevel 9, its engagement in the holes 10, 11 and the notches 12, 13 preventing relative rotation of the tube 5 and the sleeve 4. The axle part is then pushed into the tube 5. Fig. 9 shows the method of attaching the spokes to a hollow rim. Elongated holes 18 are formed in the rim to receive the spoke ends, which are folded over a steel wire 20 passing entirely round the rim in a groove 19. If the rim is solid, it is formed with an internal circular groove, the spokes folding over rivets or pins passed laterally across the groove. In modifications, the sleeve 3 may be perforated to allow passage of the axle; the wheel may be mounted on balls; the sleeves 3, 4 may bear directly on the axle, being held apart by a removable staytube; the key may be a double key of sheet metal, or small screws tenoned at their ends to fit a groove in the axle-arm.
Patent GB-1417145-A (GB)
Title: Flange protector
IPC: F16L23/00
Filed: 1972-07-20
Abstract: 1417145 Pipe couplings R OGDEN & CO (PIPELINE CONSTRUCTION Ltd) 16 Oct 1973 33908/72 Heading F2G The space between two flanges is enclosed by an encircling band 3, which is lined with a sealing material 4 and which has a grease nipple (5, Fig. 2, not shown) and a bleed valve (6). Preferably, a stainless steel band is lined with polychloroprene and nipple (5) and valve (6) are diametrically opposite one another. The band is tightened by means of a high torque worm drive fastener, which is spot welded to the band. Circumferential grooves (7) in the band lining facilitate the flow of grease.
Patent GB-605119-A (GB)
Title: Improvements in or relating to machines for mixing, emulsifying, homogenising, comminuting and for like purposes
IPC: B02C13/22
Filed: 1945-12-14
Abstract: <PICT:0605119/III/1> <PICT:0605119/III/2> A machine for mixing, emulsifying, comminuting, homogenizing, and like purposes comprises a centrifugal pump formed by a hollow rotatable member 1, Fig. 1, having a central unlet 2 for the materials to be treated, internal vanes 4, Fig. 2, and one or more perpheral openings 3 through which the materials are delivered to an annular channel 14 in a surrounding casing 10.  The materials pass through the gaps 18 between bevelled surfaces 16 on the casing 10 and corresponding surfaces 17 on the member 1 to collecting chambers 19, thence through ports 21 in a succession of annular ribs 12 on the casing 10 to be acted upon by beaters 9. The latter project from the member 1, are of streamline form, and may be serrated.  The materials escape at the centre of the machine or are impelled by vanes 37 to a pair of discharge outlets connected to a common delivery pipe.  The spacing between the member 1 and the surrounding casing 10 may be adjusted by three equally-spaced adjusting screws 27 mounted on the outer flange of one half of the casing 10, and similar screws 28 mounted on a fixed bracket 29 to bear against the other half of the casing 10.  The chambers 19 may be formed with serrated surfaces, and the casing 10 may be provided with a jacket 38 for a temperature controlling medium.  In an alternative construction the beaters 9 are provided on one side only of the member 1.  Alternative means of forming the gaps 18 are also described.
Patent GB-633844-A (GB)
Title: A process for obtaining insecticide substances in a high grade of dispersion or pulverisation, through the incorporation of carbon dioxide
IPC: A01N25/06
Filed: 1946-11-15
Abstract: An insecticidal substance capable of a high degree of atmospheric dispersion is prepared by dissolving an insect-killing product such as D.D.T. in a solvent consisting of petroleum or a liquid petroleum product and incorporating in the resulting solution a quantity of carbon dioxide, the mixture being placed in a pressure-resistant vessel provided with an atomizing nozzle. The incorporation of the carbon dioxide may be effected either by causing a current of gaseous carbon dioxide to pass into the solution prepared in a closed vessel, the desired pressure being obtained at the same time, or by injecting a previously liquefied quantity of carbon dioxide into the insecticidal solution.  The Specification as open to inspection under Sect. 91 comprises also an apparatus for applying the insecticidal substance consisting of a pressure-resistant bottle-shaped vessel closed by a screw stopper which is provided with a small diameter tube extending to the bottom of the vessel, a screw valve for controlling the flow of liquid and a small atomizing nozzle.  This subject-matter does not appear in the Specification as accepted.
Patent GB-521718-A (GB)
Title: Shellac modifications
IPC: C09F1/00
Filed: 1938-11-23
Abstract: 521,718. Shellac modifications. SUTER, A. F., JANSER, A., and SUTER, W. E. Nov. 23, 1938, No. 34090. [Class 95] [Also in Group IV] Lac or shellac is modified by chemically combining therewith one or more unsubstituted organic oxyacids, either by the direct action of such acids, or by the action of an unsubstituted unsaturated carboxylic acid which is subsequently oxidized. The combination may be effected by heating together the lac and the modifying agent, preferably in the presence of a catalyst such as aluminium sulphate, aluminium chloride, or para-toluene-sulphonic acid. Alternatively an unsubstituted unsaturated fatty or resin acid, and the lac, are dissolved separately in aqueous alkali, the acid is oxidized, and the solutions combined and precipitated with a mineral acid, the precipitate being then heated to induce combination. Another method consists in reacting the lac with an unsaturated carboxylic acid, free from hydroxyl radicals, and oxidizing the ester-like compound so formed with, e.g., alkaline potassium permanganate, sodium perborate or hydrogen peroxide. In a still further method, lac is esterified with an unsubstituted unsaturated organic acid, the resulting complex is reacted with unsubstituted oxyacids or with an alcohol, and the whole is finally oxidized. Examples are given. Specified oxyacids which may be used are glycollic, lactic, tartaric, mandelic, styceric, salicylic, o- or p-oxy-benzoic, copalolic, ricinoleic, dehydro-ricinoleic. tri-oxystearic, aleuritic, shellolic and Kerrolic acids. Oxyacids obtained by oxidizing abietic, linoleic and clupanodonic acids may also be used. Specifications 496,124 and 519,865 are referred to.
Patent GB-783388-A (GB)
Title: Derivatives of 3.5-dioxo-pyrazolidines
IPC: A61K31/00
Filed: 1955-11-29
Abstract: The invention comprises 3 : 5-dioxopyrazolidine-N-carboxylic acid esters of the general formula <FORM:0783388/IV (a)/1> (wherein R represents hydrogen or an alkyl, aralkyl or aryl group, R1 an alkyl or aryl group and R11 hydrogen or an alkyl, aryl or COOR1 group), and the preparation thereof by condensing reactive derivatives of malonic acid or C-substituted malonic acids with hydrazine derivatives containing at least one carboxylic acid ester group at a nitrogen atom.  The products yield salts with inorganic or organic bases, and are also capable of being decarboxylated, e.g. 3 : 5-dioxopyrazolidinedicarboxylic acid esters to monocarboxylic acid esters, and 1 : 4 - substituted 3 : 5 - dioxopyrazolidinemonocarboxylic acid esters to products free from carboxylic acid ester groups.  In examples: (1) malonyl chloride is warmed with hydrazodicarboxylic acid diethyl ester in benzene to produce 1 : 2-dicarbethoxy-3 : 5-dioxopyrazolidine; (2) malonyl chloride is stirred with 1-phenylhydrazine-2-carboxylic acid ethyl ester in ether to give 1-phenyl-2-carbethoxy-3 : 5-dioxopyrazolidine; (3) phenylmalonyl chloride is reacted as in (1), yielding 1 : 2-dicarbethoxy-3 : 5 - dioxo - 4 - phenylpyrazolidine, which is separated as its sodium salt, the latter warmed to remove one ester group and the product acidified to liberate 1-carbethoxy-3 : 5-dioxo-4-phenylpyrazolidine; (4) the final product of (3) is obtained by reacting phenylmalonyl chloride and hydrazinemonocarboxylic acid ethyl ester as in (2); (5) phenylhydrazinemonocarboxylic acid ethyl ester similarly yields 1-phenyl-2-carbethoxy - 3 : 5 - dioxo - 4 - phenylpyrazolidine; (6) hydrazinemonocarboxylic acid ethyl ester is reacted as in (2) to form 1-carbethoxy-3 : 5 - dioxopyrazolidine; (7) n - butylmalonyl chloride is reacted as in (6) to produce 1-carbethoxy - 3 : 5 - dioxo - 4 - n - butylpyrazolidine. Hydrazodicarboxylic acid diphenyl ester is also specified as a starting material.
Patent GB-411162-A (GB)
Title: Improvements relating to electric furnaces
IPC: H05B3/66
Filed: 1932-12-03
Abstract: 411,162. Electric resistance furnaces. ELECTRIC RESISTANCE FURNACE CO., Ltd., and CONNOR, F. G., 17, Victoria Street, London. Dec. 3, 1932, No. 34289. [Class 39 (iii).] The heating resistance 14 is secured to the insulating supporting blocks 3 by hooks 11 engaging the resistance and recesses 6 in the blocks so formed that displacement of a hook is only possible in a direction parallel to its axis, and displacement in this direction is prevented by an overhanging projection 10 of the next adjacent block. The blocks may constitute the floor, walls, or roof of the furnace or may be slotted for engagement with T-shaped crossbars of a metal frame so as to form a unit separate from the furnace.
Patent GB-1108997-A (GB)
Title: Improvements relating to the ionization of gases
IPC: H01J41/00
Filed: 1965-08-11
Abstract: 1,108,997. Discharge apparatus. KAMAN AIRCRAFT CORPORATION. 11 Aug., 1965 [16 Oct., 1964], No. 34292/65. Heading H1D. A gas ionizer for ionizing a gas without the use of a magnetic field comprises a metal electrode 18 surrounding an eccentrically-positioned metal rod electrode 12, and means, e.g. a grid 20, for urging electrons towards the centre of electrode 18, the electrode dimensions and spacing, the applied potentials, and the gas pressure being such that electrons are radially trapped and describe a large number of ionizing orbits without reaching either of the electrodes. A mathematical analysis of the necessary operating conditions is provided. The ionizer may be used as an ion source in accelerators, propulsion devices, vacuum pumps, vacuum gauges, or neutron generators. The cylindrical electrode 18 in the neutron generator shown is connected as a cathode and is closed by a mesh screen 20. A target electrode 22 completes a sealed envelope 24 which is first evacuated and then backfilled with gas from a source 28 at an extremely low pressure, i.e. too low to support a Townsend discharge. Dueterium or tritium may be used as the gas and as a loading in the target 22. The cathode 18 may alternatively take the form of a truncated pyramid or a truncated cone (Figs. 8 and 9, not shown). A zig-zag anode wire may extend from side to side of a cylindrical cathode (Fig. 10, not shown).