baber/WOPTO huggingface dataset:
Patent GB-1368888-A (GB)
Title: Laser holders
IPC: H01S3/02
Filed: 1972-03-16
Abstract: 1368888 Lasers SIEMENS AG 16 March 1972 [25 March 1971] 12443/72 Heading H1C A laser for use in explosive atmospheres is contained in a chamber so constructed that if an explosive mixture were to penetrate the chamber any resulting explosion would be contained. The chamber is formed by a tubular housing 1 and walls 6, 27 within the housing; the laser itself, which is not shown in the figure, is supported on adjustable members 2, 3. The wall 6 is sealed to the housing 1 and has a laser output window 5. An adjustable lens 4 is provided at the end of the housing. The other wall 27 is also sealed to the housing, and carries electrical connectors 28 for attachment to the laser. This wall, and a separate hood 14 keyed to the housing form a sealed region in which a main supply cable 22 is attached to connectors 28. The cable is sealed in at 19, and end plate 18 secures the seal. Rings 31 are provided on the housing 1 to facilitate mounting it. Reference has been directed by the Comptroller to Specification 1,260,275.
Patent GB-1177684-A (GB)
Title: Compass.
IPC: G01C17/18
Filed: 1967-03-16
Abstract: 1,177,684. Magnetic compasses. PATRICK HARRISON & CO. Ltd. March 16, 1967 [Dec. 2, 1966], No.12469/67. Heading G1F. A magnetic compass comprises an azimuth indicating card 60 variable in a horizontal plane and mounted in a casing 10 by a gimbal system, the gimbal system including an outer member 40 connected to the casing by an outer pivoted connection 42 and an inner member 44 connected to the outer member by an inner pivotal connection 46, the card 60 being pivotally mounted on an upstanding stud 48 on the inner member 44, and a magnetic member 82 being carried by the card 60, defining a magnetic axis and providing a pendulous mounting for the card on the stud 48, the inner member 44 carrying a datum indicator mark (not shown) to enable the orientation of the card to be ascertained. The casing 10 is composed of two hemispherical members 12, 14 of transparent plastics material and may be adapted to be mounted in a window 22 in an underwater swimmer's mask. A lens 24 is provided for coding the masks on the card 60. The inner and outer gimbal members are also preferably made of a transparent plastics material and are arranged to be of the same density as a liquid which completely fills the casing 10. A chamber 32 with a bellows 30 allows for expansion and contraction of the liquid. The card 60 is mounted on the stud 48 by means of a cylindrical member 76 hollowed to provide a downwardly facing well 78. This well is hemispherical and allows slight sliding movements of the card over its mounting during sideways displacements of the compass. A screw 92 limits the movement of the card 60 about axes normal to its pivot axis. A fluorescent surface 54 is carried by the stud 48 and is positioned adjacent the card so as to enable the marks thereon to be easily read against the datum mark on the inner member 44.
Patent GB-1302598-A (GB)
IPC: G05D1/02
Filed: 1970-03-16
Abstract: 1302598 Automatic guidance SIEMENS AG 16 March 1970 [17 March 1969] 12470/70 Addition to 1245057 Heading G3R In a system similar to that of the Parent Specification, the amplifier is provided with an automatic gain control circuit so as to prevent the terminal stage of the amplifier from being saturated. As shown, the outputs of the two photo-cells 1, 2 on either side of the laser beam are separately amplified at V 11 , V 12  and V 21 , V 22  and compared with each other at 3 so that a relay 6 or 7 is operated to effect correction according to the sense of deviation. The sum of the two signals, derived at 8, is applied to vary, at 9 and 10, the gains of the separate amplifiers in such sense as to prevent saturation. Alternatively, the gain of each amplifier may be varied by its own output. Application to maintaining the share of a drainage plough at a desired depth and guiding along a line defined by the intersection of planes formed by two laser beams, as in the Parent Specification, are described.
Patent GB-332591-A (GB)
Title: Process for preparing asphalt emulsions
IPC: C08L95/00
Filed: 1929-04-22
Abstract: 332,591. Lichtenstern, R. April 22, 1929. Emulsions, making. - Bituminous emulsions for use in making or surfacing roads and in building are prepared by mixing with the bitumen, particularly petroleum asphalt, about 1-3 per cent of Trinidad or Bermudez asphalt or montan wax and adding a hot solution of caustic alkali. The proportion of added asphalt or wax may be increased up to 20-25 per cent of the bitumen employed, the products being miscible with water in all proportions and breaking down less rapidly on admixture with road-making or building materials.
Patent GB-891062-A (GB)
Title: Tunnel type kiln for the baking of tile material, ceramic materials or refractories,particularly of red bricks, tiles and hollow tiles
IPC: F27B9/30
Filed: 1960-04-08
Abstract: 891,062. Tunnel kilns. FORMI ED IMPIANTI INDUSTRIALI INGG. DE BARTOLOMEIS S.p.A. April 8, 1960 [June 9, 1959], No. 12533/60. Class 51 (2). A tunnel kiln for firing ceramics has roof burners 1 in the firing zone and lateral burners 2 in the preheating zone opening into combustion chambers 11 supplied by a fan 5 and ducts 9 with waste gases extracted from the kiln through ports 4 at kiln car level. Branch pipes from ducts 9 to combustion chambers 11 have dampers 10. Other waste gases from ports 4 are returned to the kiln by fans 3 through roof nozzles 6. Cooling air supplied by fan 7 is extracted by fan 8 and may be used as combustion air.
Patent GB-1044395-A (GB)
Title: Improvements in or relating to bags
IPC: B65D33/18
Filed: 1964-03-25
Abstract: 1,044,395. Re-closable plastics bags. UNION CARBIDE CORPORATION. March 25, 1964 [March 26, 1963], No. 12535/64. Heading B8K. A bag of flexible plastics material, e.g. polyethylene, which may be opened and closed repeatedly, comprises a flap 14 of plastics material extending from one wall 10 of the bag at the open end and foldable over said open end and on to the outside surface of the opposite wall 12, the inside surface of the flap and/or the outside surface of the opposite wall being provided with a liquid film coating 16 having a vapour pressure between 0.01 and 10 mm. Hg. and a viscosity between 100 and 250 centipoises at 25‹ C. to provide a non-permanent adhesion between the contacting surfaces. The liquid film coating 16 may comprise a cling agent such as glycerol mono-oleate and a liquefying extender such as propylene glycol. The flap 14 is integral with or attached to the wall 10.
Patent GB-731119-A (GB)
Title: Improvements relating to glass fabrics
Inventor: DICKSON WILLIAM STEPHEN
IPC: D03D15/00
Filed: 1953-05-06
Abstract: 731,119. Woven fabrics. GLASS FABRICS, Ltd. April 26, 1954 [May 6, 1953], No. 12635/53. Drawings to Specification. Class 142(4). Glass fabric is woven from untwisted roving of continuous filaments.
Patent GB-563208-A (GB)
Title: Improvements in automatic pressure actuated needle valves
IPC: G05D16/06
Filed: 1942-10-31
Abstract: 563,208. Valves. CHUBB, D. S. Oct. 31, 1942, No. 12672/41. [Class 135] A diaphragm-actuated regulating valve particularly applicable for use with face masks, helmets, &c., which are used in'deep sea diving equipment, submarine escape apparatus and protective head gear for working in gas, smoke, rarefied atmosphere, &c., has a fluid pressure loading chamber N on one side of the diaphragm K divided into two parts by a leaky piston C operatively connected to the diaphragm to damp its movement. In the form shown in the Figure, a needle valve G with double opposite tapers co-operates with a restricted orifice in a member F adjustably screwed in the outlet connection and secured by a lock nut M. The needle is secured by a set-screw H in a spindle E having a screwed part adapted to engage piston C and so clamp. backing and stop plates C<1>, D on opposite sides of the diaphragm K which.is made of rubber or copper beryllium alloy and is subject to inlet pressure. The capacity of the loading chamber may be adjusted by a screwed plug A and shims B. The piston C may be fluted peripherally or provided with one or more leakage passages.
Patent GB-685902-A (GB)
Title: Improvements in or relating to metal containers for beer and like liquids
IPC: B65D1/00
Filed: 1951-05-31
Abstract: 685,902. Light metal cans. VEREINIGTE DEUTSCHE METALLWERKE AKT.-GES. ZWEIGNIEDERLASSUNG SUDDEUTSCHE METALLINDUSTRIE. May 31, 1951 [Oct. 1, 1948; Dec. 8, 1948], No. 12817/51.. Class 66 A can for beer &c. made from aluminium or aluminium alloy as by pressing or die casting, has a conical shoulder portion 2 integral with the body 1 and of greater wall thickness, e.g. twice the thickness of the body, and also integral with a neck 3, and is closed at the lower end by a disc 6, preferably dished inwardly and seamed on at 7. The neck may be grooved at 4 to facilitate the application of a crown cork and may be ribbed internally to facilitate cutting the groove 4 &c. Preferably the angle of inclination of the shoulder 2 equals the angle which a line joining the shoulder edge and the rim 5 makes with the vertical, e.g. each being 37 degrees. Specification 685.835 is referred to.
Patent GB-180663-A (GB)
Title: Improvements in or relating to electric relays
IPC: H02H3/30
Filed: 1922-05-06
Abstract: 180,663. MÚtallurgique Electrique. May 25, 1921, [Convention date]. Addition to 180,662. Cut-out arrangements.-With the conditions set out in the parent Specification, the surge operating one of a series of relays is greater than that operating the one preceding it. Means are now provided to ensure that, if a surge takes place between two interrupters, the latter one can operate at a lower intensity and without the actuation of the other. As shown in Fig. 1, in normal working, i.e. with a surge to the left of the interrupter 1, the coils 11, 12 cancel out, but if the surge arises between the interrupters 1, 2 there is lack of balance with positive action on a core 10 connected to and, in this case, assisting the core 7. Reference has been directed by the Comptroller to Specifications 100,892 and 102,335.
Patent GB-233532-A (GB)
Title: Pipe couplings
IPC: F16L19/03
Filed: 1924-05-26
Abstract: 233,532. Brownell, B. M. May 26, 1924. Cup-leather, overlap joints. - A pipe coupling of the type in which a packing ring is initially compressed between the coupling - members and is formed with a recess into which the pressure fluid enters to expand the ring and seal the joint, is characterized in that the packing-ring 19 is of diamond shaped cross section and engages in V- shaped channels 10, 18 in the coupling-members 1, 2 while the recess in the gasket 19 is a U- shaped channel 20 formed in the plane passing through diagonally-opposite corners of the member 19. The members 1, 2 are coupled together by a threaded sleeve 21 formed with a series of lugs 24, the sleeve 21 being locked in position by a pin 26 passing between adjacent lugs 24 and into a segment 17 on the member 2.
Patent GB-1027515-A (GB)
Title: A container for metal articles
Inventor: REUTT ZIGMUND
IPC: B65D51/28
Filed: 1964-03-26
Abstract: 1,027,515. Containers. BRISTOL SIDDELEY ENGINES Ltd. March 25, 1965 [March 26, 1964], No. 12894/64. Headings B8C and B8P. An airtight container has a flat pocket 3 (Fig. 3, not shown) formed on the inner surface of a wall or lid of the container and communicating with the interior. The pocket may hold sheet material treated with a vapour phase inhibitor. In the embodiment described the pocket 3 is made from a perforated sheet of synthetic plastics material or a piece of loosely woven plastics cloth secured along opposite edges thereof to the underneath surface of the lid. The lid of the container may be provided with strengthening ribs 1, and in this case the pocket is attached to these ribs.
Patent GB-1167364-A (GB)
Title: Apparatus for Reproducing both Magnetically Readable Characters and Visually Readable Characters on an Original and a Duplicating Master Sheet respectively
Inventor: RITZERFELD GERHARD
IPC: G06K15/00
Filed: 1966-09-28
Abstract: 1,167,364. Typewriters. G. RITZERFELD. 28 Sept., 1966 [10 Dec., 1965], No. 43355/66. Divided out of 1,167,362. Heading B6F. Apparatus for reproducing simultaneously a machine readable text and visually readable characters on a sheet 13, Fig. 3, comprises a first typewriter 157 producing a visually readable master sheet 5 and a second typewriter 158 producing machine readable original sheet 1, the two typewriters being coupled together electrically and the second typewriter having a larger carriage letter-spacing than the first. The machines are used in a method of processing data by printing on a copy sheet e.g. a record card 13, from the master sheet 5 and also providing machine readable data e.g. punched holes P by means of a punching device 17, which method comprises producing the typed copy and machine readable original 1 which is sensed by reading devices 9 which controls, via a store 18 and a decoder 151, the data punched, attaching the master sheet 1 on to a duplicating machine 12, 15, and printing parts of the master sheet on the same card 13. The typewriters 158, 157 for producing the machine readable original 1 and the master sheet 5 have type-levers 3, Fig. 2, and between them and the platen and between the original 1 and master sheet 5 is a carbon sheet 4. A mirror script is produced on the back of sheet 5 by a dye sheet 6. The characters may be of known CMC 7 script readable by magnetic heads or two machines coupled together may be used, one typing in ordinary characters and the other magnetic data. In a further embodiment (Fig. 4) the magnetic recording head 204 is mounted so it records directly on the rear of the sheet at the same time as typing is effected on the front sheet. As shown in Fig. 6 a typewriter (212) is coupled to a separate electronic coding unit to form the machine readable data on a separate sheet. The second typewriter 158 may be arranged to effect a larger carriage movement than the first machine. The second typewriter may itself comprise a machine which produces both a visually read sheet (217, Fig. 6) and a magnetically readable sheet 216 or as in (Fig. 4) the second typewriter may in addition to the visually readable matter on one side produce magnetically readable matter, on a strip (206), Fig. 5, on the other. Duplicating machine.-The process employs known rotary duplicating machines in which the original sheets 1, 1a are clamped on a cylinder 153 arranged adjacent to and driven in synchronism with the printing cylinder. In each of these embodiments the sensing heads are moved in letter-spacing direction by a helical groove and follower, and stepped for line-spacing by racks and pawls. The sensing devices may be magnetic or optical readers. The printing cylinder 12 may have selectable matter controlled by magnetic sensing of marks on the original sheet 1a.
Patent GB-1526903-A (GB)
Title: Process for the conversion of lactose into useful monocarbohydrates
IPC: C07H3/02
Filed: 1977-03-29
Abstract: 1526903 Converting lactose into galactose and gluconic acid CARBOS AG 29 March 1977 [31 March 1976] 13060/77 Headings C2S and C2C  Lactose is converted into useful monocarbohydrates by oxidatively hydrolysing a lactose solution to form galactose and gluconic acid and then separating the constituents. The oxidation may be carried out using Br 2 /HCl aq. The gluconic acid may be oxidatively decarboxylated using H 2 O 2  and a source of Fe<SP>3</SP>+ ions and at least part of the arabinose may be converted to furfural by distillation under acid conditions. The galactose may be further hydrogenated to galactitol, e.g. using H 2 /Pd-C or Raney nickel/H 2 , and at least part of the arabinose may be reduced to arabinitol.
Patent GB-131351-A (GB)
IPC: F42C9/10
Abstract: 131,351. Mansell, J. H. May 6, 1918. Projectile fuses.-Relates to detonators for fuses, comprising two separate charges of high explosive such as " tetryl," and consists in placing a powder pellet j between the two detonating- charges d, d<1>, and also with. in the first charge d, a column of powder e, enclosed in a paper cylinder f with paper cups g, h at its ends. In the fuse shown, a powder pellet k is provided in addition, in front of the first charge d.
Patent GB-1017931-A (GB)
Title: Dispersion polymerisation
Inventor: OSMOND DESMOND WILFRID JOHN
IPC: C08F2/06
Filed: 1961-04-12
Abstract: A stable dispersion of a polar addition polymer in a relatively non-polar organic liquid is made by polymerizing a polar monomer with a peroxide catalyst in solution in the organic liquid in the presence of a degraded rubber having a reduced viscosity of from 0.2 to 0.5 units, thereby forming a graft or block copolymer of the monomer and the rubber which stabilizes the dispersion.  Specified monomers are methyl butyl and beta-ethoxyethyl methacrylates, which may be used alone, or in admixture with one another or with other monomers such as acrylic and methacrylic acids, dimethyl itaconate, diethyl maleate and maleic anhydride.  The resulting dispersions may be plasticized with phthalate and phosphate ester plasticizers and used as coating compositions.  The examples describe the polymerization of methyl methacrylate and mixtures thereof with methacrylic acid and butyl methacrylate in a mineral spirits medium in the presence of benzoyl peroxide.
Patent GB-1449299-A (GB)
Title: Tricyclic compounds
IPC: A61P25/02
Filed: 1974-06-07
Abstract: 1449299 Tricyclic compounds F HOFFMANN-LA ROCHE & CO AG 7 June 1974 [8 June 1973] 13214/76 Divided out of 1449297 Heading C2C Compounds of the general formula (X = O, S; R 1 , 2  = H, C 1-7  alkyl; R 3  = H or R 2+3  = additional bond; R 6 1 = halogen, CF 3 , OH, NO 2 , NH 2 , di(C 1-7  alkyl)amino, di(C 1-7  alkyl)sulphamoyl, C 1-7  alkyl, alkoxy, alkylthio or alkylsulphonyl, protected hydroxy; R 7 1, R 8 1 = H or a substituent listed for R 6 1; Y = leaving atom or group) are prepared by esterification.
Patent GB-220091-A (GB)
Title: Improvements in pyrophoric pocket lighters
IPC: F23Q2/06
Filed: 1923-05-17
Abstract: 220,091. NeviÞre, L. A. May 17, 1923. Pocket igniters, frictional. - In a telescopic igniter, the outer casing e extends as far as or beyond the inner casing a and is shaped or cut away at e<2> to enable the igniter to be operated. In one form, as shown in Fig. 3, the casings e, a are telescoped against the action of a spring j, racks h on the outer casing e engaging pinions to rotate a friction wheel d against a pyrophoric stone c for igniting a wick b, which is disclosed through registering apertures e<o>, a<o> in the casings. Air openings e<oo>, a<oo> are provided. A spring clip : i prevents detachment of the casings. The friction wheel d may be rotated by a pawl on the outer casing engaging a ratchet-wheel, or pins, on the wheel d. In a second form, as shown in Figs. 9 and 12, the outer casing e is provided with a member o having two resilient branches o<1> terminating in holes o<2>, adapted to engage pairs of pins n, extending between a friction wheel d and flanges m on the ends of rollers l, which force the hooks o<2> to pass over the next pair of pins when the inner casing a is returrned by a spring f to its normal position. The inner casing is provided with rectangular, air openings a<oo> adapted to uncover some of the openings e<oo> in the outer casing before the wheel d is rotated. The fuel reservoir and tube c<1> containing the pyrophoric material are provided with screw stoppers j, k respectively, which act as stops in conjunction with slots in the outer casing e.
Patent GB-132846-A (GB)
Title: Improved Manufacture of Photographic Plates and Pictures
IPC: G03C1/005
Filed: 1918-09-18
Abstract: 132,846. Christensen, J. H. Sept. 18, 1918. Plates and films; toning; colour photography.- A silver-halogen film has the silver halogen in an exceedingly small quantity in relation to the quantity of gelatine, giving a film which is perfectly transparent. As an illustration, the emulsion from an ordinary plate, when added to a further quantity of gelatine, is sufficient to coat twenty or thirty plates of the same size. The images obtained are too thin for ordinary printing, but can be intensified or used to produce a coloured image. Sufficiently dense images for copying, which are also of suitable transparency for component colour images in colour processes, are produced by converting the silver image into one containing a silver or copper halogenide, which is then treated with a solution containing thiocarbomide and cuprous iodide and subsequently dyed, the superfluous dye being washed out. Alternative solutions containing thiocarbamide are also given for treating the weak silver image or one converted into a halogen image. Alternatively, the thin image may be converted into a dye-absorbing substance, such as silver or cuprous sulphocyanide, before dyeing, or the image may be bleached in a copper sulphate and potassium bromide bath and further treated in a bath containing potas. sium iodide, potassium citrate, and a dyeing-substance. For two-colour work, two differently sensitized films may be coated on opposite sides of a film, and, for three colour work, a double-coated film of this kind may be used with a single-coated glass plate.
Patent GB-132996-A (GB)
IPC: C09D101/18
Abstract: 132,996. Gilmour, R., and Dunville & Co., W. Dec. 17, 1918. Lacquers or varnishes are prepared by dissolving cellulose nitrate or celluloid in n-butyl or isobutyl formate to which may be added other solvents or diluents such as acetone, ethyl acetate, or amylacetate.
Patent GB-755885-A (GB)
Title: Improvements in master control cylinders for hydraulic systems
IPC: B60T11/16
Filed: 1954-05-06
Abstract: 755,885. Hydraulic brakes. SCHAFER INDUSTRIEGES. SCHWEINFURT. May 6, 1954 [May 11, 1953], No. 13303/54. Class 103 (1). A master cylinder for hydraulic brake systems is characterized in that the inner wall of the cylinder 4 has a precision finish only along that part along which the piston 5 travels, and a duct is provided through the precision finished portion of the cylinder wall adjacent the inoperative position of the piston, communicating through a spring-loaded relief valve 10 with a hydraulic fluid reservoir 2.
Patent GB-802932-A (GB)
Title: Plastic picker for looms
IPC: B29C43/00
Filed: 1956-05-01
Abstract: Pickers for looms may be prepared by pressing and vitrifying powdered or granular polyethylene having a molecular weight of at least 500,000 and prepared by a low-pressure process. Alternatively the polyethylene may be formed under low pressure and vitrified to give picker blanks or slabs or bars from which picker blanks are machined, and the blanks subjected to further pressure to obtain the required dimensions.  Materials to improve the heat conductance, e.g. bronze powder, and to reduce the coefficient of friction, e.g. metal powders, graphite and glass fibres, may be incorporated.
Patent GB-261998-A (GB)
Title: Improvements in or relating to apparatus for feeding molten glass
IPC: C03B7/084
Filed: 1926-05-26
Abstract: 261,998. Jackson, L. Mellersh-, (Hartford-Empire Co.). May 26, 1926. Delivering molten metal.-Relates to a feeder of the reciprocating-plunger type and particularly to such a feeder in which the plunger, or a discharge-controlling tube surrounding the plunger, is rotated to stir the glass. According to the invention, the device for adjusting the position of the rotating member relatively to the discharge outlet is arranged to stop the rotation when the member approaches the outlet, in order to prevent abrasion between the member and the wall of the outlet. In the construction shown, a plunger 12 reciprocates above an outlet 11 in a forebearth 10, and it is surrounded by a tube 14 for controlling the flow of glass to the outlet. The tube is rotated to stir the glass, and its supporting bracket 15 is provided with an arm 41 carrying an adjustable tripping-bolt 40. The tube can be adjusted in position above the outlet by a screw, and can be brought down on to the outlet to stop the flow of glass. As its lower edge approaches the wall of the outlet, the bolt 40 trips a contact member 37 and opens the circuit of the motor 29 that rotates the tube. A spring 42 closes the contact 37 when the tube is raised again.