baber/WOPTO huggingface dataset:
Patent GB-735811-A (GB)
Title: Improvements in or relating to light screening members
IPC: F21V5/00
Filed: 1953-06-24
Abstract: 735,811. Glass screens for fighting fittings. KURZ, F. W. A. June 24, 1953 [June 25, 1952], No. 17454/53. Drawings to Specification. Class 75 (2). [Also in Group XXIII] A translucent screen for a light source comprises a flat or curved glass plate having lensshaped or prismatic elements disposed closely adjacent each other on one or both sides of the plate and of such convexity that images of the light source are formed within or close to the plate. The elements may be corrugations on one side and parallel or transverse corrugations on the other side, or spherical caps on one or both sides. The elements on one side may be out of alignment with and may be of different curvature from those on the other side.
Patent GB-476897-A (GB)
Title: Improvements relating to furnaces
IPC: F27B9/24
Filed: 1936-06-23
Abstract: 476,897. Roller - way conveyers. McDONALD, J., and G.W.B. ELECTRIC FURNACES, Ltd. June 23, 1936, No. 17464. [Class 78 (i)] [Also in Group XII] In a roller-hearth furnace 1, the rollers 21 adjacent the charging and/or discharging door 17 are provided with alternative drives through uni-directional clutches so that these rollers can be driven by either drive and will then overrun the other. The rollers 2<1> carry at each end two sprockets 5, 6, fitted with freewheel devices and connected by chains 4, 7 respectively, to the sprockets 3 of the main hearth rollers 2 and to a hand wheel 8, the latter also driving, through shaft 11, chains 15, and sprockets 16, the rollers 13 of a loading or unloading platform outside the furnace. In operation, during the actual charging and discharging periods, the rollers 2<1> and 13 function as a unit driven by the hand wheel 8, the drive through the sprockets 6 overrunning that through the sprockets 5. When the hand wheel 8 is inoperative the drive from the main rollers through the sprockets 5 overruns that through the sprockets 6.
Patent GB-319061-A (GB)
Title: Improvements in or relating to iron-cored inductances
IPC: H01F17/04
Filed: 1928-06-16
Abstract: 319,061. Radio Instruments, Ltd., and Shaw, W. L. June 16,1928. Inductances. - An iron - cored inductance for smoothing circuits &c. comprises a laminated core 18 and winding 17 enclosed in an iron pot 10 provided at one end with an adjustable cap 20 for varying the air gap in the magnetic circuit. The ends 21 of the winding are connected to terminals 22, and the base 11 of the pot is secured to the wall by screws 12.
Patent GB-239326-A (GB)
Title: Improvement in or connected with condensers used in connection with wireless telegraphy and telephony
IPC: H01G4/38
Filed: 1925-05-22
Abstract: 239,326. Price, A. A., and Price's Battery & Radio Co., Ltd. May 22, 1925. Condensers.-A series of fixed condensers C, D, E, F, of different capacities are housed in a moulded ebonite casing H provided with internally projecting stepped portions on each side, each condenser comprising alternate sheets of mica and metal foil, the latter being provided with projections to which are soldered terminal screws G extending through the stepped portions of the casing to enable different capacity values to be obtained bv interconnection. The individual condensers are separated by sheets of mica K, and are sealed in the casing with wax or the like.
Patent GB-1344273-A (GB)
Title: Photographic dye-developer diffusion transfer process
IPC: G03C8/00
Filed: 1971-05-27
Abstract: 1344273 Photographic dye-developer diffusion transfer process EASTMAN KODAK CO 27 May 1971 [1 June 1970] 17627/71 Heading G2C A photographic dye-developer diffusion transfer process comprises imagewise exposing a photographic material comprising a support and a light-sensitive silver halide emulsion layer which contains a dye-developer or is contiguous to a layer containing a dyedeveloper, allowing an alkaline liquid that causes the dye-developer to develop the latent image to permeate the layers, allowing residual unoxidised dye-developer to transfer imagewise by diffusion and in register to a receiving layer and effecting development in the presence of a #-disulphone at a concentration such that the speed of the material is increased. The #- disulphone may have the formula: - wherein R 1  and R 2  are optionally substituted 1-4C alkyl and R 3  is H or optionally substituted 1-4C alkyl, and may be bis (methyl-or ethylsulphonyl) methane. The #-disulphone may be present in the photographic material, the alkali liquid or the receiving layer. The material may contain red-, green- and bluesensitive silver halide emulsion layers containing or contiguous to cyan, magenta and yellow dye-developers respectively. The alkaline liquid may contain sodium thiosulphate. The material may contain a dye image-receiving layer and a repturable container containing the alkaline liquid.
Patent GB-145622-A (GB)
Title: Improvements in and relating to a process for obtaining the active ingredient of lobelia inflata
IPC: C07D211/32
Filed: 1920-06-29
Abstract: The process for the isolation of the alkaloids of lobelia inflata described in the parent Specification is modified by using carbon tetrachloride, trichlorethylene, acetylene tetrachloride, &c., instead of chloroform for extracting a  - lobeline hydrochloride from the mother-liquor from which b  - lobeline hydrochloride has been crystallized out.
Patent GB-530152-A (GB)
Title: Improvements in and relating to hose connections for vacuum cleaners
IPC: F16L37/113
Filed: 1939-06-19
Abstract: 530,152. Hose couplings. THABUR INDUSTRIEELE EN TECHNISCHE HANDELMAATSCHAPPIJ. N. V. June 19, 1939, No. 17825. Convention date, June 17, 1938. [Class 99 (i)] A vacuum cleaner hose 1 carries a sleeve 2 in which there is a rotatable member 3 having L-shaped grooves 6, 8, with helical faces which co-operate with projections 12 on the casing 11 to hold the hose in place bayonet fashion. A packing ring 13 completes the joint.
Patent GB-331360-A (GB)
Title: Improvements in anti-dazzle eye-shades
IPC: A61F9/04
Filed: 1929-06-11
Abstract: 331,360. Severn, J. A. June 11, 1929. No Patent granted (Sealing fee not paid. Eye-shields.-Eye-shades of the kind described in Specification 287,217 are provided with a transparent or semi-transparent extension member C, extending over the bordered peaks D of the shade A, which may be held in position by clips B or mounted on a hinge so that it may be turned up inside the main shade. Alternatively, the extension member may be partly transparent and partly semi-transparent and pivoted to the shade so that either part may be adjusted in position for use. These. two parts may also be hinged together.
Patent GB-462641-A (GB)
Title: Apparatus for establishing the exact vertical of a locality and applications relating thereto
IPC: G01C9/12
Filed: 1936-06-26
Abstract: 462,641. Artificial horizons. WARLUZEL, C. June 26, 1936, No. 17860. Convention date, June 27, 1935.' [Class 97 (ii)] A body D having unequal principal moments of inertia, e.g. a disc, ring, cylinder, or chain, is supported in a frame B and drawn in rapid rotation by a flexible filar suspension F attached to the body D at a point outside the major principal axis of inertia. The body D rotates about its major principal axis and the latter takes up a vertical position. The filar suspension F is attached at the top to the spindle C of a motor M which is mounted by gimbals S in the frame B. Deviations of the frame B from the vertical may be determined by observing the departures of the image in a mirror N of a mark P at the centre of the body D from alignment with a point Q marked on the mirror N. Photo-electric cells may be utilized to adapt the device for use with automatic stabilizing apparatus.
Patent GB-1397156-A (GB)
Title: Circuit arrangement for detecting a defect caused by phase failure or earth fault in the current supply of a three phase motor
IPC: H02H3/13
Filed: 1973-04-13
Abstract: 1397156 Protective arrangements SPRECHER & SCHUH AG 13 April 1973 [23 Aug 1972] 18009/73 Heading H2K A circuit arrangement for detecting phase failure and earth faults on the supply circuit of a three phase motor (not shown) has means, e.g. transformers W R , W S , W T , for deriving voltages proportional to the line currents, a time-division multiplex device 1 for producing a multiplex signal from cyclic successive samples of uniform duration from these voltages, a rectifier circuit 5 for producing a "measurement" voltage V M  from the positive or negative parts of the multiplex signal, a differentiator 9 for differentiating the multiplex signal to produce pulses, a phase failure comparator 10 for comparing the pulses with part of the measurement voltage, a low-pass filter 6 for deriving peak values at line frequency of the voltages proportional to the line current, and an earth fault comparator 7 for comparing the peak values with another part of the measurement voltage. As shown, a clock generator 2 controls the multiplex device which comprises flip-flops FF1, FF2 and a NAND gate Nand 4 acting as a counter which counts up to three, the outputs from the flip-flops causing the cyclic operation of NAND gates Nand 1 ... Nand 3 to switch the transformers W R  ... W T  in turn in circuit with an amplifier OV1 which supplies the rectifier circuit 5 to produce the measurement voltage U M . When phase failure occurs, the output from an amplifier OV3 in the comparator 10 renders a field-effect transistor FET 5 non-conductive to remove a short circuit from a resistor R5. This increases the gain of the amplifier OV1 causing the voltage U M  to become sufficient to energize a motor protection relay, indicated by EMS. Similarly, should an earth fault occur a transistor FET 4 becomes non-conductive to increase the gain of the amplifier OV1 and cause relay operation. The outputs from the amplifiers OV2, OV3 in the comparators 7 and 10 are connected to an indicating circuit comprising a field effect transistor FET 6 controlling a transistor Tr in series with a gallium-arsenide diode GD and Zener diode ZD.
Patent GB-624688-A (GB)
Title: Pressure-reducing valve device
IPC: G05D16/06
Filed: 1945-07-13
Abstract: 624,688. Pressure-reducing valves ; spindles. GRATZMULLER, J. L. July 13, 1945, Nos. 18016 and 18017. Convention dates, July 17, 1944. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 13, 1945.] Addition to 622,916. [Class 135] In a pressure-reducing valve according to the parent Specification, the gas expansion chamber of the first stage is located in the lower part of the device and the final expansion chamber is located in the upper part so that gums present in the compressed gas are deposited in the lower chamber which has a discharge hole in the bottom thereof. The invention is described with reference to the disclosure in the parent Specification as open to inspection under Sect. 91.
Patent GB-985723-A (GB)
Title: Refractory materials
Inventor: HILTON RAYMOND FREDERICK
IPC: C22C32/00
Filed: 1962-05-10
Abstract: Refractory bodies are produced by firing a mixture of flake graphite, silicon carbide and silicon and/or ferrosilicon bonded with a hardenable organosilicon binder, e.g. an alkyl silicate ester such as ethyl silicate. Proportions specified by weight are 10-40% flake graphite, 30-80% silicon carbide and 5-50% silicon and/or ferrosilicon and 25-50 parts of binder per 100 parts of the mix.  The mix may also include up to 1% by weight of a fluorine containing material, e.g. fluorspar, cryolite or topaz, up to 5% by weight of borax, boric acid, glaze frit or similar glassy material and up to 10% by weight of fine carbon.  The firing may be carried out under a non-oxidizing nitrogen atmosphere and may be carried out by either heating at 1150-1350  DEG C. for about 24 hours followed by a rapid increase, to 1400-1550  DEG C. for 15-30 minutes, or by heating at 600-700  DEG C. for 60-90 minutes followed by a rapid increase to 1400-1550  DEG C. for 5-30 minutes.
Patent GB-222967-A (GB)
Title: Head telephone receivers
IPC: H04R1/10
Filed: 1923-07-12
Abstract: 222,967. Sterling Telephone & Electric Co., Ltd., and Griffiths, F. R. July 12,1923. Head sets.-A telephone head set comprises a head band 1, Figs. 1 and 2, carrying brackets 2, in which are mounted rotatably the stems 5 of yokes 4 which carry the receivers 3. The receivers are pivoted on studs 7 and rotation is limited to a small angle by the middle part of the yoke 4 and the bent arms 10 of the yoke. The stems are of channel cross-section and projections on the bracket 2 engage in the channels to limit the rotation of the stems. In a modification the rotation of each stem 14, Figs. 6 and 7, is limited by a non-circular washer 17, which is threaded on the stem and engages the bracket 11 after a small rotation in either direction. The ends of the yoke arms 18 are bent towards the receiver cap to limit the movement of the receiver. Spring tongues formed integrally with the brackets engage the stems to provide a frictional resistance to their movement and the tops of the stems may be slit and flattened or enlarged to prevent their withdrawal from the brackets. Specifications 10041/12 and 211,722 are referred to.
Patent GB-278118-A (GB)
Title: Improvements in and relating to apparatus for cooling and purifying gases
IPC: B01F3/04
Filed: 1926-07-21
Abstract: 278,118. Richardsons, Westgarth, & Co., Ltd., and Inglis, F. G. July 21, 1926. Gases, treating with liquids.-Apparatus for cooling and purifying gases with liquids comprises one or more pairs of perforated discs, one of each pair being fixed and the other rotating, the gas being drawn through the discs and intercepted by transverse streams of liquid passing radially between the discs. The fixed discs 2, 2<a>, 2b, are secured to a hollow annular member 5 and the rotating discs 3, 3<a>, 3b, are mounted on a drum 7 on a driving shaft 8 which also rotates the blades 10 of a centrifugal fan serving to draw the gas through the apparatus. Nozzles 12 deliver radial jets of liquid towards openings 11 in the drum 7 and after passing between the discs, the liquid is discharged through openings 13 in the member 5 to a waste pipe 14 leading to a reservoir 15. Spaced projections 16 are provided on adjacent surfaces of the discs of each pair or on both sides of each disc, in which case additional jets and openings are provided. The discs may be formed of plates with holes punched therein and the projections may be bolted on or pressed out. Or the discs may consist of interlaced bars or have large openings in which wire meshing is secured. The fixed discs may be mounted on a separate movable ring so as to permit of variation in the distance between the fixed and rotating discs.
Patent GB-413490-A (GB)
Title: Improvements in flexible joints for machine parts
IPC: B62D55/108
Filed: 1933-06-27
Abstract: 413,490. Flexible - unjointed hinges; endless-track vehicles. KEGRESSE, A., 156, Rue Armand Silvestre, Courbevoie, near Paris. June 27, 1933, No. 18315. Convention date, July 13, 1932. [Class 65 (ii).] A lever or equalizer bar, for example, for the carrying wheels of endless band or track apparatus or machines, is supported by projections on two lateral faces embedded in rubber held in a fixed housing, so that pivotal movement of the lever is permitted by distortion of the rubber. In the form shown in plan, a lever 4 has a cross-shaped projection 5 on each side, embedded in rubber in a fixed housing 1 which has slotted sides to allow movement of the lever. In a modification, the lever is formed of two parallel bars, passing one on each side of the housing, each having a projection such as 5 on its inner side, so that the two projections abut against one another in the housing and are embedded in rubber therein, being held together by a bolt passing through them. The projections may be of any suitable shape, and may be designed to afford the greatest surface in the direction of the usual or maximum load ; the rubber may be under compression, and may also be proportioned to suit the direction of load.
Patent GB-1261400-A (GB)
Title: Improvements in or relating to tip-paper for cigarettes
IPC: A24C5/56
Filed: 1969-04-10
Abstract: 1,261,400. Cigarette tip-paper. H. GLATZ R. GLATZ and J. STOCKER. 10 April, 1969 [11 April, 1968; 28 Nov., 1968], No. 18334/69. Heading A2C. [Also in Division D2] A tip-paper for connecting the filter to the cigarette, and formed to imitate cork comprises a major proportion of a ground natural fibre by wt., and minor proportions by weight of calcium carbonate and/or titanium dioxide; ferric oxide; an alkyl-ketene dimer; and a cationic polyalkylamine. The wet web, in the course of manufacture, may be impregnated with a cationic surfactant/saturated aliphatic hydrocarbon emulsion. The paper may have yellow irregular dots printed onto it to imitate cork, or it may be impressed with irregular depressions.
Patent GB-201728-A (GB)
Title: Process of and apparatus for washing paper machine felts
IPC: D21F1/32
Filed: 1922-07-04
Abstract: 201,728. Ayers, J. T. July 4, 1922. Felts.-In apparatus for washing and drying paper machine felts, which may be used during the operation of the machine, a suction box, having two compartments 17, 18, which may be under different degrees of suction, is mounted to slide towards and away from the felt 27 under the action of cams 14, and above the felt are provided pipes 23, 22, 21, 20, for spraying hot soapy water, cold water, steam, and air. The treatment with water, steam, and air, may be used once or oftener each day, and the soap wash added once or more each week.
Patent GB-834690-A (GB)
Title: Improvements in or relating to buffers for railway rolling stock
IPC: B61G11/12
Filed: 1957-06-11
Abstract: 834,690. Buffers. ATELIERS DE CONSTRUCTION DU NORD DE LA FRANCE. June 11, 1957 [June 11, 1956; Feb. 1, 1957; March 13, 1957], No. 18394/57. Class 103(5) A buffer Is provided with an hydraulic chamber 4 which may also contain air as well as oil, and a piston 5 provided with orifices 12a through which the oil is throttled when the buffer is subjected to impact, the oil displacing the floating piston 10 to compress the gas contained in the chamber 9. The coil spring 14 is arranged in parallel with the hydro-pneumatic device and rubber springs 16, 17 are arranged in tandem.
Patent GB-310232-A (GB)
Title: Improvements in clamps for use in printing machines
IPC: B41F27/10
Filed: 1928-06-25
Abstract: 310,232. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). June 25, 1928. Printing-surfaces. - Plate clamps for securing printing-surfaces to cylindrical or other supports 5, of the kind described in Specification 205,684 in which the clamp 6 can be rotated to bring different surfaces 7, Fig. 1, or 10, Fig. 2, into clamping position, or can be rotated to an intermediate position in which a wider plate can overlie the surfaces 7, 10, are constructed with means whereby a rotation of the clamp effects a bodily adjustment thereof to compensate for slight differences in the width of a plate due to irregularity in casting. Screw-operated clamps 18, 22 cooperate with the surfaces 7, 10, and the clamps 18, 22 co-operate with one another when a wide plate is used. The adjustment of the clamp is effected by mounting it on a fixed screw 16 secured to a box 15 in the recess of the support, and bv rotating the clamp on the screw it is moved axially to the extent of the thread of the screw. It is held in adjusted position by a spring-pin 20 engaging a hole 21 in one of the walls of the box 15.
Patent GB-1143216-A (GB)
Title: Improvements in or relating to apparatus for handling submerged articles
Inventor: LINDSTAEDT HORST KARL WILHELM
IPC: G21C19/32
Filed: 1965-01-29
Abstract: 1,143,216. Suction lifting devices. FAIREY ENG. Ltd. 28 April, 1966 [29 Jan., 1965], No. 18450/66. Heading B8H. An hydraulically operated suction lifting device for handling nuclear fuel elements 11 under water comprises a steel channel member 30 and a number of suction pads 31 of rubber or synthetic material. Each suction pad is coupled to the source of hydraulic suction by a pipe 41. The device may form part of the machine for dismantling nuclear fuel assemblies which forms the subject-matter of the parent Specification 1,137,501.
Patent GB-693800-A (GB)
Title: Improvements in or relating to snow-plows
Inventor: WALLACK FRANZ
IPC: E01H5/09
Filed: 1951-08-07
Abstract: 693,800. Snowploughs. GROSSGLOCKNER-HOCHALPENSTRASSEN AKT.- GES. Aug. 7, 1951, No. 18585/51. Class 107 A snow plough has at least one pair of removal means 1, 1 mounted for rotation on substantially vertical axes, and a throwing wheel 2 characterised in that the middle plane of the throwing wheel lies substantially in the plane of symmetry of the pair of removal means. The direction of rotation is indicated by the arrows.
Patent GB-1278258-A (GB)
Title: Improvements in or relating to adhesion of elastomeric materials
IPC: A43B13/12
Filed: 1969-04-10
Abstract: 1278258 Boots &c SHOE & ALLIED TRADES RESEARCH ASSOCIATION 13 Aug 1969 [22 Aug 1968 10 April 1969] 40166/68 and 18589/69 Heading A3B [Also in Division C3] A sole unit of elastomeric material, e.g. natural rubber or SBR rubber but excluding thermoplastic rubber, is subjected to a surface halogenation treatment before being bonded to a lasted upper using a solvent based polyurethane or polychloroprene adhesive. The halogen may be chlorine or bromine. Bromination may be carried out using a solution of bromine in carbon tetrachloride and chlorination may be carried out using chlorine vapour or an aqueous solution of sodium hypochlorite and hydrochloric acid.
Patent GB-833287-A (GB)
Title: Improvements in or relating to high-frequency induction furnaces
IPC: H05B6/22
Filed: 1957-06-12
Abstract: 833,287. Induction furnaces. SIEMENS & HALSKE A. G. June 12, 1957 [June 14, 1956], No. 18590/57. Class 39(3) A high frequency induction furnace particularly suitable for melting silicon or germanium comprises a primary coil 3 coupled to a secondary coil consisting of two concentric cylindrical members 1<SP>1</SP>, 1<SP>11</SP> and two concentric cylindrical member 2<SP>1</SP>, 2<SP>11</SP> of which the members 2<SP>1</SP>, 2<SP>11</SP> form the side wall of a crucible 4. The members 1<SP>1</SP>, 1<SP>11</SP> are joined to the members 2<SP>1</SP>, 2<SP>11</SP> respectively by parallel wall portions 6a so as to provide a space for the circulation of a coolant, e.g. water. In a modification, Figs. 2, 3, a primary coil 8 and the two portions 9, 10 of the secondary coil are all concentric, the bottom 15 of the crucible being of an electrically insulating material, e.g. quartz glass or a ceramic material, and located in a reduced field from the secondary coil. Wall portions 16a join the secondary coil portions. Cooling in the vicinity of the spaces 5, 12 formed between the parallel walls portions 6a or 16a may be sufficient to prevent the charge reaching its melting point in the spaces and escaping from the crucible. The whole of the secondary coil may constitute the side wall or walls of the crucible which may comprise a helical coil formed from a metal tube preferably of rectangular cross-section. The turns may be sufficiently close to prevent the molten charge from escaping or, if they are more widely spaced, e.g. from 0.5 to 2.0 mm., the charge may be prevented from escaping by means of a magnetic field. As an additional precaution, the spaces may be sealed by aluminium oxide. The crucible may be copper, silver, or aluminium and coated with a layer of the powder of the material to be melted. Because of the high resistance of the semiconductor charge when cold, initial heating may be effected by an arc or glow discharge. Electromagnetic fields may be used to control the glow discharge current on the surface of the charge. The melting process may take place in a protective gas, e.g. hydrogen.