baber/WOPTO huggingface dataset:
Patent GB-683372-A (GB)
Title: Improvements in centrifuges
IPC: B04B1/20
Filed: 1951-06-20
Abstract: 683,372. Centrifugal machines. BIRD MACHINE CO. June 20, 1951 [June 20, 1950], No. 14626/51. Class 23 A centrifuge comprises a rotary bowl 10, having an inlet 36 and oppositely arranged outlets 42, 32 for the discharge of liquid and solid materials respectively, and a rotary conveyer 30 having helicoidal vanes 50 which are disposed between the convolutions of the conveyer blade and have radially inclined marginal portions. The bowl and the conveyer are rotated at different speeds by gears 16, 20 respectively. The bowl is cylindrical, conical, barrelshaped or is partly cylindrical and partly conical whilst the conveyer is shaped correspondingly. The ports 42 are situated further from the axis than the thresholds 34 of the ports 32.
Patent GB-225506-A (GB)
Title: Improvements in and relating to pupinised lines for telephone transmission over long distances
IPC: H04B3/14
Filed: 1924-06-17
Abstract: 225,506. Siemens & Halske Akt.-Ges. Nov. 27, 1923, [Convention date]. Addition to 222,829. Loading circuits to improve transmission.-In a system in which distortion due to oscillatory phenomena in a line loaded according to the Pupin method is prevented by the addition of a chain conductor which supplements the phase angle between the voltages at the beginning and end of the line so that the resultant phase angle is approximately proportional to the frequency, as described in the parent Specification, the chain conductor consists of a number of links each comprising capacities C and inductances L connected as shown. Some of the links of the chain conductor may be located at each amplifier V as shown or, alternatively, the whole chain may be placed at the end of the system.
Patent GB-518165-A (GB)
Title: Improvements in or relating to transportable splinter-proof armoured cells for anti-aircraft observers and others
IPC: E04H9/10
Filed: 1938-05-17
Abstract: 518,165. Armoured shelters. COLLINS, F. E. May 17, 1938, No. 14754. [Class 20 (i)] A portable armoured shelter for use in antiaircraft observation work comprises a sheetmetal cell closed on all sides, and is formed of the shape of a truncated cone or pyramid 1 closed at the ends by a convex cover 2 and a base 3, both welded to the body. It is provided with a hook or eye 8 whereby it is lifted for transportation, and also with a gas-tight door 4 and an opposed gas-tight manhole. Observation apertures 6 are provided and these may be sealed with splinterless glass. The shelter may be secured to the ground by bolts passing either through apertures 10 in the floor, or through lugs 11 welded to the shelter, or by means of clamping plates 12 engaging a rim or lugs 13 on the periphery at the bottom of the shelter or by a combination of these means. An internal folding seat or table 14 may also be provided.
Patent GB-163915-A (GB)
Title: Improvements in and relating to the sizing of textile fabrics or the like
IPC: D06M11/79
Filed: 1920-06-01
Abstract: A sizing for textile fabrics comprises a mixture of china clay, pipe clay, gelatine, soft soap, and a saturated solution of alum.
Patent GB-514905-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/03
Filed: 1938-05-18
Abstract: 514,905. Telephone sets. POLLAK, J. E. (Associated Telephone & Telegraph Co.). May 18, 1938, No. 14835. [Class 40 (iv)] . A telephone hand-set is provided with a socket whereby a throat-operated microphone 6 may be plugged in and supported on the hand set in addition to the ordinary microphone 2, which may be automatically disconnected.
Patent GB-911089-A (GB)
Title: Instrument for drawing ellipses and other figures
IPC: B43L11/05
Filed: 1958-05-09
Abstract: 911,089. Ellipsographs &c. TAPSELL, C. D. Aug. 10, 1959 [May 9, 1958], No. 14851/58. Class 97 (3). An instrument for drawing ellipses and other curves comprises a primary arm 1, Fig. 4, which is pivoted about a pin 5 forming the centre of the ellipse, and a secondary arm 2 carried by the primary arm 1 and pivoted about a point thereon, the arm 2 carrying at its free end a drawing point 11 and being in geared relationship with the primary arm 1 so that on angular movement of the latter the arm 2 is also turned to impart movement to the drawing point 11. A beam 3 supported by end members 4 has a sleeve 9, Fig. 1, which slidably supports the pin 5 and rotatably supports a boss 7 mounted at one end of the primary arm 1. A shaft 17 rotatably supported at one end by a member 27 on arm 1 and at its other end by boss 7 carries a bevel pinion 19 meshing with a bevel gear 16 on the sleeve 9 so that as arm 1 is moved about pin 5, the shaft 17 rotates, and, through pinions 20, 21, a clamp 18 carrying the arm 2. The gear ratios may be 2 to 1 for gears 16, 19, and 1 to 6 for those 20, 21, so that on arm 1 moving through 180 degrees, arm 2 rotates 360 degrees to describe an ellipse. In modifications the gear ratios may be varied to draw other geometrical figures. The shaft 17 is slidably but non-rotatably engaged with pinion 20, carried by a support 10, so that the effective length of arm 1 may be varied and arm 2 may be slidably adjusted with respect to clamp 18 to vary the length of arm 2.
Patent GB-559284-A (GB)
Title: Improvements in or relating to the fastening of sheet material into frames and like members
IPC: B64C1/14
Filed: 1942-10-22
Abstract: 559,284. Strengthening edges. REID & SIGRIST, Ltd., and BOWER, C. Oct. 22, 1942, No 14852. [Class 42 (i)] [Also in Group X] The margin of a window or panel 16 is secured in a frame member 10 formed with a groove or channel 14 by filling in the space between the panel and the sides of the groove with a cement 22 which adheres to the panel but not to the frame member. When the cement filling solidifies, it forms a solid projection on the panel which prevents it from being withdrawn from the groove edgewise while allowing its endwise movement in the groove. The cement may be a paste or viscous solution consisting of the same material as the panel and a solvent thereof, or it may be a thermoplastic material which becomes solid when cool. The inner surface of the groove may be coated wth oil which is powdered with French chalk 20, or may be lined with thin sheet material to prevent the cement from adhering to the sides of the groove. The cement is first inserted into the groove and the margin of the panel is then inserted edgewise, displacing the cement, as in Fig. 3 into the space between the panel and the sides of the groove.
Patent GB-549916-A (GB)
Title: Improvements in or relating to gas igniting appliances
IPC: F24C3/10
Filed: 1942-01-02
Abstract: 549,916. Lighting gas burners. MILLWARD, H. Jan. 2, 1942, No. 14854/41. [Class 75 (iii)] Gas burners b are ignited by rubbing a flint along the roughened or serrated upper surface of a bar a of steel, iron, carborundum, or refractory material removably mounted adjacent the burner on the stove frame. Fig. 2 shows the bar a secured by duplex spring clips c, c' and Fig. 4 shows the bar secured by screws to holders e, e<SP>1</SP> having an adjustable screw and slot connection g. The ends of the bar a may be formed with shoulders to abut against the clips or holders.
Patent GB-144627-A (GB)
Title: Improvements in exhausters
IPC: F04D29/28
Filed: 1920-06-01
Abstract: 144,627. Pratt Engineering & Machine Co., (Assignees of Hurt, G. F.). June 12, 1919, [Convention date]. Impeller blades for fans for propelling corrosive fluids are formed of a non-corrosive metal, as Regulus metal, and are provided with a stiffening-rib on a core piece. Fig. 3 shows the core piece 21, which is keyed to the impeller shaft 14 and has a number of ribs 28, one to each blade of the impeller. Each blade has a stiffening-rib 19 at its periphery and a Y- shaped rib 20 on its rear face. A transverse web 18 connects the blades.
Patent GB-813472-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K11/26
Filed: 1957-05-10
Abstract: 813,472. Welding by fusion. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 10, 1957 [May 18, 1956], No. 14917/57. Class 83 (4). [Also in Groups XXXV and XXXVII] In arc welding apparatus in which one of a pair of output terminals of a power supply unit having a non- drooping voltage -current characteristic is connected to the work and the other to each of a plurality of consumable electrodes, separate controls are provided for controlling the feeding of each of the electrodes to ignite and maintain the arcs. A 3-phase supply 111 is connected through a transformer and a rectifier to the output terminals 122 and 124. Terminal 124 and the work W are earthed and the other terminal 122 is connected through the coils of relays R1, R2 in parallel to the contactors TC contacting the electrodes Z1 and Z2. Each electrode has its own feed control unit and motor A. The armature of each feed motor A is in parallel with a braking resistor 163 and in series with a thyratron T across leads L1, L2 which are connected through a transformer to two of the leads of the 3-phase supply RX. The control potential for the thyratron T is compositely derived from a phase-shift circuit PS coupled to the supply leads L1, L2, a potential derived from circuit RX1 dependent on the current passed by the thyratron T and a bridge circuit containing variable potentiometers VS, VR determining the inching and the welding feed rates, respectively. To position the electrode Z<SP>1</SP>, an inching switch S is closed to energize relays RIN and IRS in succession, whereupon the armature of the feed motor A is connected up and the braking resistor 163 taken out of circuit so that the electrode is fed slowly towards the work until the switch S1 is opened. To start welding, switch SA is closed and if the water-pressure-responsive switch WPS is shut, relays RWAI, RS, IRS and RW operate. The feed motor A is started at inching speed, solenoids SG, SW connect shielding gas and cooling water to the welding torch and relay RW closes a switch to connect the welding supply to the terminals 122, 124. When the arc is struck, current relay R1 operates followed by RR which disconnects the potentiometer VS to accelerate the motor A to the normal feed rate and completes a circuit for the work-table motor. The other electrode Z2 may be started in similar manner. Both electrodes may be fed into the same weld pool and may be of the same or different composition.
Patent GB-1109830-A (GB)
Title: Alloys for use in the manufacture of disc brake rotors
Inventor: DEAN ALBERT GARDNER
IPC: F16D69/02
Filed: 1967-03-31
Abstract: A cast iron alloy, suitable for use in making disc-brake rotors, comprises:- .total.C.3.2-3.55% ..Cr.0.15-0.25% ..Mn.0.5-0.8% ..Mo.0.3-0.5% ..Ni.1.15-1.35% ..Si.1.8-2.0% ..P.0.1% max ..S.0.08% max the balance being iron.  It is preferred that 0.5-0.7% of the carbon should be in the combined state.
Patent GB-279919-A (GB)
Title: Improvements in and connected with coal cutting and like machines
IPC: E21C31/00
Filed: 1927-03-14
Abstract: 279,919. Hurd, F. W, March 14, 1927. Coal-cutting machines.-In a coal-cutting machine which is fed by hauling itself along an anchored rope, chain, &c., each side of the machine is provided with pulleys i' mounted in carriages moving in guides l and provided with lugs p for connection as by chains m to the cutter jib, whereby the pull is transferred to the rear of the machine; the slidably-mounted pulleys may also be used for swinging the cutter jib. The idle pulley i<1> may be disconnected from its chain &c. and moved forwardly to support the free end of the feed chain &c., or a separate pulley may be provided for this purpose. The feed sprocket a, or drum a<1>, which may be driven by worm gearing, is mounted on the upper side of the machine frame, which may be reduced in height at this part; a detachable plate may cover the drum or sprocket. Guide pulleys g may be provided and may be inclined as in Fig. 3. Guide bars n may be provided to protect the machine.
Patent GB-593825-A (GB)
Title: Improvements in circuits for electric discharge lamps
IPC: H05B41/04
Filed: 1945-06-13
Abstract: 593,825. Supply systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd., and CATES, J. June 13, 1945, No. 15010. [Class 38 (iv)] In an electric discharge lamp circuit comprising filamentary electrodes F1, F2 of the lamp D, ,connected in series with a ballasting choke L and condenser C to an A.C. supply T and having, for starting purposes, a glow discharge switch G in the filament pre-heating circuit, an impedance Z which may be a choke, a resistor or a combination thereof, is connected in parallel with the glow switch electrodes A, B, one of which is bimetallic, thereby to increase the glow'discharge current and so to reduce the time taken for the glow switch contacts to close and' start the main discharge. The arrangement also avoids the tendency of the lamp to " cold starting." Examples are given, wherein the glow discharge current is increased from 20 to 28 milliamperes and from 20 to 40 milliamperes when a resistor of 5000 ohms and an impedance comprising reactance of 10,000 ohms and resistance of 850 ohms are respectively connected in parallel with a glow discharge switch associated with an 80 watt discharge lamp working on a 200 volt, 50 cycle supply.
Patent GB-250789-A (GB)
Title: Separators for secondary batteries
IPC: H01M50/466
Filed: 1925-06-09
Abstract: 250,789. Hart Accumulator Co., Ltd., and Holmes, F. J. June 9, 1925. Separators to be sprung on the edges of battery plates are of substantially rectangular channel section, the sides 1, 2 inclining slightly together in order to grip the edge of the plate. The separators may have straight slots 7 or bayonet slots 6 for engagements with projections on the plates, and the top of the separater is bevelled to prevent any material from resting thereon.
Patent GB-1184103-A (GB)
Title: Preparation of Polycyclic Polyether Polyols
Inventor: HOY KENNETH LOOK
IPC: C08G65/22
Filed: 1967-04-01
Abstract: 1,184,103. Polycyclic polyether polyols. UNION CARBIDE CORP. 1 April, 1967, No. 15016/67. Headings C3B and C3R. Polycyclio polyether polyols containing at least one hydroxyl group per repeating unit are prepared by contacting (a) a polycarbocyclic compound containing the bicyclo-[2,2,1]-heptanoid ring and at least one vicinal epoxy group whose carbon atoms form part of the polycarbocyclic ring structure and at least one additional hydroxyl equivalent in the form of hydroxyl groups or vicinal epoxy groups with (b) an hydroxyl containing non-epoxy chain length modifier selected from water and organic compounds free from substituents, other than hydroxyl groups, which react with epoxy groups, in the presence of an acid epoxy polymerization catalyst. The polycarbocyclio compounds may have the hydroxyl groups bonded directly to the cyclic nucleus or via alkylene, alkyleneoxy or polyalkyleneoxy linkages. The catalysts may be inorganic acids such as phosphoic acid or metal halide Lewis acids such as boron trifluoride and its etherate. The polycarbocyclic compound preferably contains 3-4 carbocycles each containing 5 or 6 carbon atoms, those claimed are 5-oxatetracyclo-[6,2,1,0<SP>2À7</SP>, 0<SP>4.6</SP>undecan -  9(10) - ol, 5 - oxatetricyclo- [6,2,1,0<SP>2,8</SP>,0<SP>4,6</SP>] - dodecan - 9,10 - diol, 5 - oxatetracyclo  -  [7,2,1,0<SP>2,8</SP>,0<SP>4,6</SP>] - dodecan - 10(11) -  ol and 10 - oxapentacyclo  -  [6,3,1,1<SP>3,6</SP>,0<SP>2,7</SP>,0<SP>9,11</SP>]. tridecan-4(5)-ol. The preferred chain length modifier is water although methanol and ethylene glycol are claimed. The reaction may be effected using solution or emulsion polymerization techniques using dioxane or chlorinated hydrocarbons as respective solvents. The examples give polymers ranging from 5 to 35 theoretical repeating units. The polymers are soluble in dioxane and dimethylformamide and can be used in coating compositions. Reference has been directed by the Comptroller to Specifications 938,353 and 1,008,843.
Patent GB-840768-A (GB)
Title: Methods of and apparatus for the measurement or indication of smoke density
Inventor: STREET NORMAN FREDERICK
IPC: G01N21/53
Filed: 1956-05-15
Abstract: 840,768. Photo-electric smoke detectors. KELVIN & HUGHES Ltd. July 30, 1957 [May 15, 1956], No. 15103/56. Class 40 (3). [Also in Group XX] A testing tube has a smoke density testing device, which may be photo-electric, at one end and a light source at the other and conduits communicating with a flue for circulating a sample of gases from the flue through the testing tube, the circulation being induced by air drawn into one of the conduits from the atmosphere by the reduced pressure in the flue or fed to the conduit from a supply of air under pressure. In the form shown, conduits 19, 20 communicating with the flue are attached tangentially to the tube 10 with apertures 21, 22 for the flow of the sample gases. Housings secured by flanges to the ends of the tube and enclosed by cover glasses or lenses 16, 17 contain respectively a lamp 12 with reflector 15 and a photo-cell 11. The housings have ventilating holes 36, 37. The conduit 19 is open to the atmosphere but contains a tapered tube 27 which, because of the flow of atmospheric air due to the reduced pressure in the flue, induces a flow of gases from the flue and through the tube 10. A thermally-sensitive device 35 indicates any fall of temperature caused by a cessation of this flow resulting from e.g. a blockage. In a modification, the interior of the conduit 19 is of Venturi form and communicates with the tube 10 in the region of the construction. In a further form, an open-ended tube containing a construction projects from the flue and the lower end of the conduit 19, closed at the top, projects into it. In a still further form, the conduits are concentric and communicate directly with the tube 10, an air blast being directed by a blower across the tube 10 and into the inner conduit to induce the flow from the flue.
Patent GB-1348356-A (GB)
Title: Interlayers for safety glass
IPC: C03C27/12
Filed: 1972-03-30
Abstract: 1348356 Coated plastics sheet SEKISUI KAGAKU KOGYO KK 30 March 1972 [30 March 1971] 15113/72 Heading B2E [Also in Divisions B5 and C3] A sheet, suitable for use as an interlayer for a laminated safety glass, comprises a polyvinyl acetal resin plasticized with from 20 to 80 parts by weight of a plasticizer per 100 parts by weight of the resin, and a nobomane compound of the formula: wherein R 1  and R 2  are each an alkyl group of 1 to 10 carbon atoms and X is cadmium, barium, zinc or magnesium, the plasticized resin being coated with the norbomane compound. In the Examples a polyvinyl butyral resin, which has been mixed with ethylene glycol, mono-methyl ether and triethylene glycol-di-2-ethyl butyrate and extruded into a sheet, is dipped into a solution of the cadmium salt of 2-methyl-norbomane-2-carboxylic acid in normal hexane and containing ethylene glycol monobutyl ether and dried.
Patent GB-348391-A (GB)
Title: Improvement in or relating to mixing apparatus for liquids
IPC: B01F5/04
Filed: 1930-05-16
Abstract: 348,391. Mixing fluids in flow. RITSCHEL, O., 33, Mozartstrasse, Duisburg, Germany. May 16,1930, No. 15131. [Class 86.] Apparatus for mixing liquids in flow, of the kind in which a motor driven by one of the liquids drives a pump which supplies the other liquid, comprises a closed reservoir for the second liquid into which the pump forces some of the main liquid to displace the second liquid therefrom. As shown, the pump 2, driven by the motor 1, forces some of the main liquid from the down-stream side of the motor into the reservoir 4, the displaced second liquid being ejected through a pipe 7 and fed to the main below the pump inlet 5. This form may be applied to supplying a liquid which does not readily mix with the main liquid. Complete separation of the two liquids in the reservoir may be effected by enclosing the second liquid in a flexible bag, or the second liquid may be placed in an open topped container within the reservoir and separated from the main liquid by a liquid of less density than the two liquids, and with which they do not mix.
Patent GB-161865-A (GB)
Title: Improvements in power transmitting means
IPC: F16H21/36
Filed: 1920-06-03
Abstract: 161,865. Ransford, R. B., (Bulkrug Machine Corporation). June 3, 1920. Power hammers.-In a hammer mechanism for riveting machines &c., in which rotary motion is converted into a quick-return reciprocatory motion, the hammer 21 is integral with a yoke 2 having a curved slot 25 into which extends a power-driven crank pin 27 having a loose sleeve 26. The outer wall of the slot is flattened at the, uppermost portion a reached by the pin, in order to release the crank from percussive reaction at the moment of impact and to enable the stroke of the hammer to vary. The yoke is guided in grooves 15 in a casing 1. The crank disc 3 is mounted on a shaft 4 supported in a cover 5 secured to the casing 1 by bolts 9 in lugs 7, 8. The shaft 4 is driven through gearing in a part 12 of the cover 5 from a motor 11 seated on flanges 10 on the casing. An opening 30 is closed by a hollow plug 31 retained in position by spring- pressed pins 32 contacting with inclined surfaces. 34 on the casing adjacent the opening 30. The plug holds the sleeve 26 in position and contains lubricant. The hammer 21 reciprocates in a portion 23 of the casing, and strikes a reduoed stem 40 of a tool 41, the stem extending through a flanged bush 42 in the casing. Grooves 22 are formed on the hammer to prevent compression of air &c. below the hammer.
Patent GB-1184534-A (GB)
Title: Platinum Complexes of Organo Amino Phosphines
Inventor: PARASKO NICUO
IPC: C08K3/32
Filed: 1968-03-29
Abstract: 1,184,534. Platinous chloride complexes of organoaminophosphines. RHONE-POULENC S.A. 29 March, 1968 [29 March, 1967], No. 15147/68. Heading C2C. [Also in Division C3] The invention comprises platinous chloride complexes of the formula in which R<SP>1</SP> and R<SP>2</SP> are unsubstituted or substituted hydrocarbon groups which may be linked together with the N atom to form a heterocyclic radical. R<SP>1</SP> and R<SP>2</SP> may form with the adjacent nitrogen atom a saturated, 5- or 6- membered heterocyclic ring, which may contain a second heteroatom. Specified groups for R I  and R<SP>2</SP> are alkyl, alkenyl, an alicyclic radical of 5- or 6-ring carbon atoms, phenyl, alkylphenyl and aralkyl such as phenylalkyl; alkyl of 1 to 4 carbon atoms being preferred. They are prepared by heating platinous chloride with at least two molecular proportions of an aminophosphine of the formula P[NR<SP>1</SP>R<SP>2</SP>] 3 . The reaction may be carried out in a diluent, preferably a chlorinated hydrocarbon. The complexes are useful'as catalysts in curing organopolysiloxane compositions.
Patent GB-1187205-A (GB)
Title: Improvements in or relating to Erasers
Inventor: VINCENT PAUL MICHEL
IPC: B43L19/00
Filed: 1966-04-06
Abstract: 1,187,205. Erasers. P. M. VINCENT. 6 April, 1967 [6 April, 1966], No. 15229/66. Heading B6P. A typist's eraser comprising aninner layer 1 for erasing typed matter and outer layers 2 for erasing pencil marks, has incorporated therein a permanent magnet whereby the eraser can be attached to a ferrous part of the typewriter. As shown in Fig. 3, the magnet 5 is positioned in apertures in the layers 1, 2 and held in place by an eyelet 3 and discs 4. An eyelet such as 3 may however constitute the magnet. Further, the eyelet and discs 4 may be omitted and paper discs adhered to the outer layers 2 may cover the ends of the magnet 5. In other forms, a thin magnetic disc situated in an aperture in the layer 1 is covered by the outer layers 2 (Fig. 4), a magnet diamond-shaped in cross-section may engage apertures in the discs (Fig. 7), or the magnet may have a cross-section that tapers towards its mid-point so that the layers can be assembled thereon (Fig. 8).