baber/WOPTO huggingface dataset:
Patent GB-523458-A (GB)
Title: Improvements in or relating to bituminous concrete
IPC: E01C7/18
Filed: 1938-12-30
Abstract: 523,458. Bituminous compositions. OBERBACH, J. Dec. 30, 1938, No. 37824. Convention date, Sept. 14. [Class 22] A material for use as a road foundation consists of a bituminous concrete in which the mineral aggregate includes stone dust and the binder is either coal tar pitch or a mixture of coal tar pitch with oil or tar, and has a softening point of about 45‹-55‹C. Kramer-Sarnow. The mineral aggregate may be first treated with oil or then tar and mixed with molten pitch, a quantity of pulverized harder pitch being then added and the whole mixed at 80‹-150‹C., so that the pitch and oil or tar combine to form a binder having a softening point 45‹-55‹C. In an example 85 parts by weight of 0/5 m.m. sand and 7 parts'of powdered limestone are mixed with 8 parts of coalt tar pitch having a softening point of 48‹C. K-S.
Patent GB-1185965-A (GB)
Title: Data storage timing system
Inventor: ANDERSON LORRIN O'NEILL
IPC: G11B20/10
Filed: 1968-08-09
Abstract: 1,185,965. Data storage timing system. BURROUGHS CORP. 9 Aug., 1968 [14 Aug., 1967], No. 38049/68. Headings G4A and G4C. Information is read from a dynamic magnetic storage medium having information tracks or areas grouped into zones with a clock track and preferably an address track for each zone by generating a train of clock pulses which is a predetermined multiple of the bit frequency in the selected zone and selecting one pulse of the train as a reference in response to detection of a reference bit in the selected track. The invention is concerned with compensating for the shifting of data bits in information tracks with respect to the clock pulse train in an associated clock track and includes the provision of a strobe unit to generate synchronized clock pulses. As described, information is recorded by the NRZ method in three zones at different bit frequencies on each disc face of a multi-disc magnetic store. A fourth zone on each disc face is provided with a clock track and an address track for each of the other three zones. In operation, signals from the selected clock track are used to synchronize the output of a corresponding one of three oscillators having a frequency nine times that of the bit frequency of the corresponding information track. These pulses are applied to the input of a J-K flip flop 9-state counter (Fig. 5) of the strobe unit. On detection of a reference bit which (together with codes in the address track) marks the beginning of the record in the selected track the value of the counter is transferred in parallel to a storage register for comparison purposes whereby every ninth clock pulse thereafter an equality signal is emitted. These signals, which coincide with the beginning of each bit period in the selected information track, are delayed in a flip-flop delay timer to provide strobe pulses coinciding normally with the fifth pulse of the 9 clock pulses defining each bit period. The reference bit detector is also arranged to detect early bits whereby the strobe pulses may be generated up to two clock pulses earlier. Drums or tapes may be used in place of discs.
Patent GB-1215595-A (GB)
Title: Interlocked switching mechanism
Inventor: ROMAN ROBERT JUSTIN
IPC: G03B19/18
Filed: 1968-08-09
Abstract: 1,215,595. Interlocking mechanical switches. EASTMAN KODAK CO. 9 Aug., 1968 [10 Aug., 1967], No. 38126/68. Heading H1N. An interlocked switching mechanism includes a plate 22 depressible to actuate a switch 10, the control knob 36 of a second switch 12 being located in an aperture 38 of the plate 22 such that it is accessible for actuation only when the plate is depressed from its normal position. Switch 12 is a slide switch actuated by sliding movement of knob 36 in aperture 38. Plate 22 is hinged at 26 and is biased by springs 28, 30, to a position above the cover 24 of the switch housing 15. Switch 10 is used as a stop switch and switch 12 as a reversing switch in the projector of Specification 1,215,593.
Patent GB-1077109-A (GB)
Title: Internal combustion engine with built-in clutch
IPC: F02B61/00
Filed: 1964-09-18
Abstract: 1,077,109. Driving gear. SOCIETE INDUSTRIELLE DE MACHINES AGRICOLES ROTATIVES SIMAR. Sept. 18, 1964 [Oct. 11, 1963], No. 38163/64. Heading F1B. [Also in Division F2] One of the crank-shaft spindles 7 is rotatable relative to the adjacent crank web 4 and is driven therefrom through a clutch 16. Spindle 7 is supported by needle bearings 8, 13, 15 and a ball bearing 12 so as to be free to move axially, the clutch being held engaged by a concave spring 20 acting upon thrust member 23 and disengaged by moving spindle 7 axially by a control lever 24.
Patent GB-365276-A (GB)
Title: Improvements in the purification of gases containing hydrogen for use in the heat treatment of carbonaceous materials
IPC: C10G47/00
Filed: 1930-12-18
Abstract: Carbonaceous materials, including crude benzenes and benzines, are treated at high temperature and pressure with hydrogen-containing gases obtained by the degasification of solid carbonaceous materials and from which the strongly unsaturated hydrocarbons, sulphur compounds, free oxygen and oxides of nitrogen have been removed. Suitable gases are coke-oven gas, illuminating gas, or the gases from low temperature carbonization of coal or distillation of oil shale. The undesired constituents, including iron carbonyl, may be removed by adsorbents such as active carbon, silica gel, fuller's earth, tonsil, clay, and the like; or by the action of sulphuric or dilute nitric acids, alkaline hypochlorite solution, or anhydrous aluminium chloride.  The gases may also be led over hydrogenating catalysts of the 6th group, or over catalysts containing silver; or may be treated in a liquid carbonaceous medium with the catalysts described in Specification 257,256, [Class 32, Distilling &c.].  Carbon dioxide and monoxide may be removed by washing with water under pressure and with cuprous salts respectively.  Specification 348,690 is also referred to.
Patent GB-1523472-A (GB)
Title: Photographic materials containing ultraviolet radiation absorbing layers
IPC: C08L101/00
Filed: 1975-09-17
Abstract: 1523472 Photographic material containing cyanobutadiene ultraviolet absorbent EASTMAN KODAK CO 17 Sept 1975 [17 Sept 1974 38240/75 Heading G2C [Also in Division C2]  A photographic material comprises a support carrying at least one radiation-sensitive layer and an ultraviolet radiation absorbing layer comprising a cyanobutadiene derivative of the Formula n is 1 or 2, G is an electron-withdrawing group, R<SP>1</SP> and R<SP>2</SP> are hydrogen atoms or cyano groups or optionally substituted C 1-10  alkyl, or cycloalkyl groups, or when n is 2 one of them is an alkylene, arylene or piperazine group, or R<SP>1</SP> and R<SP>2</SP> together complete a cyclic amino group, provided that R<SP>1</SP> and R<SP>2</SP> are not both hydrogen atoms.
Patent GB-1063203-A (GB)
Title: Method of and means for the transfer of images
IPC: B41M5/025
Filed: 1963-09-27
Abstract: 1,063,203. Printing processes. RESEARCH LABORATORIES OF AUSTRALIA Ltd. Sept. 27, 1963 [Oct. 2, 1962; Jan. 8, 1963], No. 38280/63. Heading B6C. An image 21 with the medium thereof in a wet condition and supported on a master sheet 20 is transferred to a copy sheet 20 whilst the contacting sheets are passed through the bites of roller pairs A to G, Fig. 1. A D.C. voltage is applied across each roller pair, the voltage applied to each succeeding pair being lower than that applied to its immediate predecessor. Ranges of 50 V. to 1000 V., 5 V. to 200 V., 10 V. to 1000 V., 500 V. to 7-5 kV. and 200 V. to 4À5 kV. are given as examples in conjunction with the described apparatus, the voltage range used depending upon the materials of the sheets. In a modification of the apparatus the image on the master sheet is dry, the copy sheet being wetted with a solvent prior to passage through the first roller pair. A number of copies may be made with the same master by using this apparatus. Fig 84 shows an apparatus incorporating a series of roller pairs the voltage to each pair depending upon the setting of a potentiometer 76. The lower rollers 55 are spring-loaded upwardly, adjustment being effective through individual screw members 61. These rollers are belt-driven from a motor 65. If the apparatus of the invention is to be used to produce a number of copies the electrostatic fields between the rollers are adjusted accordingly such that only a part of the image medium is transferred to each copy sheet.
Patent GB-369563-A (GB)
Title: Engine starting apparatus
IPC: F02N99/00
Filed: 1930-12-19
Abstract: 369,563. Turning gear. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. Dec. 19, 1930, No. 38281. Convention date, Dec. 20, 1929. [Class 7 (v).] A portable apparatus for setting in rotation aircraft or like engine starters of the inertia type comprises a driving member 79 for engagement with the cranking shaft 80 of the engine starter, power means for driving the member 79, and a stem or handle 87 for rendering the apparatus portable and allowing it to be lifted from the ground. As shown, the member 79 is driven from an electric motor 11 controlled by means of a switch 90, which is mounted on the stem 87 and controls an electromagnetic switch in series with a reversing switch 98 mounted adjacent to the casing 7 of the motor 11. The upper part 4, 5 of the casing is provided with a handle 9. The driving member 79 is driven from the motor 11 through toothed gearing 27, 28, 31, 32, 40 and planet wheels 41 mounted on a plate 36 and engaging a fixed internal gear 42 ; the plate 36 is connected through an adjustable multiple-plate clutch 51 and bevel gearing 64, 68 to a shaft 69, to which the driving sleeve 79 is connected by a rivet 81. The sleeve 79 is provided with a driving pin 82 for engagement with a slot 83 in the cranking shaft 80 of the inertia starter. The electric motor may be replaced by a small internal-combustion engine or a compressed-air or other motor.
Patent GB-940022-A (GB)
Title: Photomechanical printing surfaces
IPC: B41N1/22
Filed: 1959-11-11
Abstract: 940,022. Photomechanical printing surfaces. SOC. CIVILE DE RECHERCHES POUR L'AUTOMATISATION. Nov. 11, 1959 [Nov. 17, 1958], No. 38328/59. Drawings to Specification. Heading G2M. A photosensitive gel exemplified as bichromated gelatin or polyvinyl alcohol is provided on an absorbent element, imagewise exposed, treated with solvent to remove the gel from unexposed areas and then with a settable substance exemplified as polyester resin which is substantially absorbed in such unexposed areas only, after which setting conditions exemplified as heat are applied to the settable substance, and the undissolved gel is removed as with sodium hypochlorite solution from the exposed areas to leave a printing surface in relief, intaglio or silk-screen form according as to the type of exposure. Drawings, not shown, illustrate the above absorbent element as felt, woven fabric, coiled thread, chamois-leather and finely spongeous regenerated cellulose mounted on a support of a synthetic resin such as a polyester laminate, particularly in sleeve formation for cylindrical operation. Printing may be effected in relief form from the settable substance surfaces above such absorbent elements, but, because of the latter, intaglio printing is similar in aspect to what is obtained by silk-screen printing.
Patent GB-1444808-A (GB)
Title: Photosensitive drum for electrophotographic copying machines
IPC: G03G15/00
Filed: 1973-08-14
Abstract: 1444808 Electro-photographic apparatus RICOH KK 14 Aug 1973 [21 Aug 1972] 38341/73 Heading G2H Copying drum 2 comprises a cylindrical support 4 with slits 4a, 4b in its surface, supply and take-up reels on its interior, an insulating layer 4h with a resistivity of from 1 to 5 x 10<SP>9</SP> ohm. cm. on the minor part of the drum periphery between the slits and a photo-conductive strip extending between the reels by way of the slits and the major part of the drum periphery. The strip may be about 0À1 mm thick, and be composed of a polyester film base with an earthed aluminium layer and a photosensitive layer. Rotation of the reels advances the strip when required.
Patent GB-1397565-A (GB)
Title: Spark ignition systems
IPC: F02P1/08
Filed: 1971-08-17
Abstract: 1397565 Ignition systems PLESSEY CO Ltd 10 Aug 1972 [17 Aug 1971] 38638/71 Heading F1B An internal-combustion engine ignition system comprises an HT voltage source 1, a storage capacitor 3, a diode 5 through which the capacitor 3 is charged by the source, a thyristor 8 responsive to a trigger pulse for discharging the capacitor through the primary winding 7 of a transformer thereby to produce in a secondary winding 13 of the transformer an ignition pulse, a pick-up coil 9 responsive to the passing in its vicinity of a magnet (not shown) attached to a part of the engine with which the system is associated for producing the trigger pulse and thus the ignition pulse, the ignition pulse being utilized to ionize a spark gap 14, and a further storage capacitor 4 and a further diode 6 through which the further storage capacitor is charged, the further storage capacitor being discharged across the spark gap when it ionizes thereby intensifying sparks produced in the spark gap. As shown the AT voltage source 1 comprises a magneto coil but the system may be fed by a battery. The magneto coil and the pick-up coil may be both arranged in association with the magnet. The pick-up coil may be wound on a separate pole-piece or may form part of the magneto coil. Specifications 1371042 and 1366859 are referred to.
Patent GB-1179649-A (GB)
Title: Method of Preparing Electrophotosensitive Materials and Photosensitive Elements Utilizing the Same
IPC: G03G5/024
Filed: 1968-08-14
Abstract: 1,179,649. Electrophotographic material. KATSURAGAWA DENKI K.K. 14 Aug., 1968 [22 Aug., 1967], No. 38825/68. Heading H1K. Cadmium compounds exhibiting persistent internal polarization for use in electrophotography are made by diffusing impurities into the surface layer of the compound but not the body of the compound whereby deep trap levels are formed at the surface. CdS, CdSe, or ZnCdS 2  powder is fired with Cu or Ag bromide or chloride in an inert atmosphere or air. The powder is fired a second time in an atmosphere of sulphur. In an example, CdS, CdCl 2 , NH 4 Cl and CuCl 2  are fired in a quartz tube at 600‹ C., washed, dried, mixed with CuSO 4  and S and fired under N 2  at 600‹ C. The twicefired powder is mixed with polyvinyl acetate in an organic solvent and coated on a polyester film. Alternatively a support of metal foil or conductive glass may be used or an electrophotographic layer may be coated with a conductive paint. An insulating layer may be provided on top of the photo-conductive layer and also between the photo-conductive layer and the support.
Patent GB-1068090-A (GB)
Title: Teaching machine
IPC: G09B3/08
Filed: 1964-09-23
Abstract: 1,068,090. Educational applicances. J. W. HANNAH. Sept. 23, 1964, No. 38835/64. Heading G5G. A teaching device comprises a film 21 containing lesson and reference frames which are projected on to screens 55, 56, Fig. 1, each frame having on it a coded address, e.g. marks or perforations gg-mm, Fig. 2, and several other codes a-h, i-p &c. which correspond to the address of subsequent frames which are to follow in response to the pupil's answer to the initial frame. To move the film to a particular frame, switches 1-7 are operated and button 8 is depressed so that a series of comparator relays are operated. When the film with corresponding marks gg-mm arrives, in projection position, the sensing of these marks, either mechanically, electrically or photoelectrically, causes neutralization of the comparitor relays and the film is arrested in correct position and the projector lights switched on. The film is accurately aligned by an armature of a relay which engages a double notched edge of the film. The motors which wind the film are braked by a temporary reverse current before being switched off. The student may have to select one of a multiple choice answer, or choose a preference for one of two correct statements. In either case the device will automatically present a subsequent frame to view and this is determined by the rows and columns of marks a-ff, Fig. 2. In the case a multiple choice answer one of four buttons 9-12 is depressed. If a correct answer is made a mark will exist in the column a, i, q, y. This, together with a row of marks a-h, will set register relays and the film is wound automatically to the subsequent frame. If an incorrect button is depressed, register relays are operated according to a second row of holes and film moved accordingly, which may, if necessary, be in the reverse direction. In a second embodiment a circuit comprising transistors and flip-flops is employed, see Fig 9 (not shown).
Patent GB-1373552-A (GB)
Title: Fluorinated organic compound mixtures
IPC: D06M13/33
Filed: 1971-08-19
Abstract: 1373552 Proofing against oil and water UGINE KUHLMANN 19 Aug 1971 [20 Aug 1970] 39031/71 Addition to 1218758 Heading D1P [Also in Division C2] The invention comprises mixtures of compounds of the formula: and of the formula: where C n F 2n+1  and C n-1  F 2n-1  each represent a straight or branched perfluorinated chain, n is 1 to 20, R 2  is hydrogen or C 1 -C 3  alkyl radical, R' is hydrogen or a methyl radical and R 1  is hydrogen, a C 1 -C 20  alkyl radical, an aryl radical, a C 3 -C 12  cycloalkyl radical, a C 3 -C 10  alkenyl radical, a C 5 -C 12  cycloalkenyl radical, the radical -COCR'=CCH 2  or the radical -(CHR 3 ) b OH where b is from 1 to 10. The mixtures can be polymerised and used as waterproofing or oil proofing agents for textiles, paper and leather. The exemplified mixtures are those where n=4, 6, 8 or 10, R 2  is hydrogen, R 1  is methyl, butyl or hexyl and R' is hydrogen.
Patent GB-815847-A (GB)
Title: Improvements in or relating to the production of steel and other metals
Inventor: ATTERTON DAVID VALENTINE
IPC: C21C7/04
Filed: 1956-12-21
Abstract: A method of degassing a molten metal comprises introducing below the surface of the metal a pre-dried solid material which will produce carbon monoxide and/or carbon dioxide at the temperature of the melt, the generated gas being free from the gas to be removed or having a partial pressure thereof less than the equivalent internal pressure of the gas to be removed.  Marble chips and powder may be bonded together with a silicate, the mixture dried to a moisture content of less than 1.5 per cent, and plunged below the surface of a melt of steel, copper, or nickel, the carbon dioxide produced removing hydrogen.  The mixture may also contain carbon to increase the carbon monoxide content and also the total volume of gas.  Other substances which may be used include a limestone, preferably coated with fluorspar, or other alkaline earth metal carbonates and an inert material, e.g. magnesia, may also be included.  The first Provisional Specification refers also to the use of gases, e.g. carbon monoxide, carbon dioxide, sodium chloride vapour magnesium vapour, and nitrogen.  Nitrogen may be obtained by the decomposition of calcium cyanide or an organic nitrogen compound.  The second Provisional Specification refers also to the use of the oxides of nitrogen and fluxing materials.  Specification 16001/12 [Class 72] is referred to.
Patent GB-889178-A (GB)
Title: Improvements relating to underwater manipulating implements
IPC: B25J9/14
Filed: 1959-11-19
Abstract: 889,178. Handling radio-active materials. PALATINE (SURBITON) Ltd., and BATES, L. T. Nov. 18, 1960 [Nov. 19, 1959], No. 39307/59. Class 39(4) An implement for handling radio-active objects under water comprises a tubular shank 1 having at its lower end jaws 4, 5 operated by a pneumatic ram 8 connected to air supply and exhaust pipes 12, 13 controlled by a twoway valve 14 mounted on handlebars 2 at the upper end of the shank. In order to counteract the combined weight of the implement and the object being handled a buoyancy chamber 17 is secured to the shank 1, this chamber comprising a top plate 18, a perforated bottom .plate 21 and a perforated plate 23 to which the open ends of four rubber envelopes 25, 27 (only two shown in Fig. 1) are secured. These envelopes may be inflated by compressed air to fill the chamber casing 20, the air being supplied through a union 28 on the plate 18 and a pipe 29, the supply being controlled by a further valve 30 on the handlebars.
Patent GB-833686-A (GB)
Title: Improvements relating to electrical control circuit arrangements
IPC: H01H47/24
Filed: 1956-12-27
Abstract: 833,686. Photo-electrically controlled lighting. GENERAL ELECTRIC CO. Dec. 27, 1956 [Dec. 28, 1955], No. 39323/56. Class 40 (3). [Also in Group XXXVII] A photo-conductive control circuit arrangement, particularly for turning street lights on and off at desired ambient light levels, comprises a source of supply voltage connected in series with the operating winding 1 of a relay 2 and with a photo-conductive cell 3, the relay having contacts 10 operated by an over-centre snap action mechanism having an armature differentially controlled by a spring bias and the magnetic attraction of the relay winding. The circuit under control, e.g. the one or more lamps 13, is connected to the source of supply voltage via the contacts 10. The relay 2 comprises an armature 6 biased by a spring 7 to the full line position and connected by a bow spring 8 to a flexible support member 9 for one of the contacts 10 of a switch whose other contact is mounted on a support member 11. A cadmium sulphide cell is preferred as the photo-conductor, which may be of the microcrystalline layer type in which the sensitive material has been deposited by an evaporative process. The cell may be of the interdigital electrode type. The impedance of the cell is preferably substantially equal to the impedance of the relay winding.
Patent GB-822311-A (GB)
Title: Improvements in or relating to heating heads for electric soldering irons for precision work
IPC: B23K3/03
Filed: 1956-12-27
Abstract: 822,311. Soldering irons. SACHS, E., sen., SACHS, E, jun., and SACHS, M., [trading as SACHS ERATE. SPEZIALFABRIK ELEKTRISCHER LOTKOLBEN UND LOTBADEN K.G.]. Dec. 27, 1956 [Dec. 27, 1955], No. 39335/56. Class 83 (4). [Also in Group XI] A heating head for an electric soldering iron comprises an outer tubular shell encasing a heating element disposed in the wall of a supporting tube, e.g. of mica or miconite, wrapped with glass wool and a thin metallic sheathing. As shown, a supporting tube 2 has within its wall a heating element 3 and is wrapped with glass wool 9 and a thin non-oxidizing metallic sheathing 10 in the form of a wire fabric 10a or foil. The front portion of the tube 2 is provided with a further thin tubular sheet metal covering 12 and is pressed into an outer tubular shell 8. The other end of the tube 2, together with the glass wool and metallic sheathing, is held in a handle 18 by clamping means 15, 16 and 19. A metallic sleeve 4 located inside the tube 2 receives an exchangeable bit 5. A finger guard 17 is provided.