baber/WOPTO huggingface dataset:
Patent GB-911827-A (GB)
Title: Improvements in or relating to microscopes
Inventor: PAYNE BRYAN OLIVER
IPC: G02B21/14
Filed: 1959-10-21
Abstract: 911,827. Microscopes. COOKE, TROUGHTON & SIMMS Ltd. Oct. 21, 1960 [Oct. 21, 1959], No. 35725/59. Class 97 (1). In a microscope having an arrangement as described in Specification 713,171 and comprising a concave reflecting surface which forms an image of the backfocal plane of the objective in the optical path between said surface and the eyepiece, said concave reflector surface is formed by the totally reflecting convex surface of a plano-convex lens mirror mounted with its plane surface towards the incident light. As shown in Fig. 3 light from a microscope objective and a lens 2 is directed by a plane reflecting surface 3a on to the plano-convex lens mirror 4 and thence, via a plane mirror 3b, to a lens 5 which re-images the intermediate image 7 of the object in the focal plane of the eyepiece (not shown). The mirror 4 forms at 8 an image of the backfocal plane of the microscope objective and in this plane are disposed diaphragms or polarizing filters so as to provide phase contrast, dark ground or differential colour effects. The diaphragms or filters are mounted on a slide whereby a selected diaphragm or filter may be interposed in the light path, this slide also being mounted on a rack whereby it may be moved in the direction of the optical axis so as to correctly position the slide in the image plane 8. The mirror 4 can be tilted with respect to the light incident thereon and the distance of this mirror from the intermediate image 7 determined by the actual thickness and refractive index of the mirror according to a table of data given in the Specification. In another form the two plane mirrors 3a and 3b may be formed by the adjacent surfaces of a prism.
Patent GB-781749-A (GB)
Title: Production of phthalocyanine vat dyes
IPC: C09B47/08
Filed: 1955-12-13
Abstract: Cobalt phthalocyanines are converted into vat dyes of improved solubility in the vat by reacting with formaldehyde or a formaldehydeyielding compound (e.g. paraformaldehyde or trioxane) in presence of sulphuric, phosphoric, or methyl sulphuric acid having a concentration of at least 90 per cent by weight, if desired in presence of 5-40 per cent of an amide by weight of the formaldehyde. 0.1 to 5 equivalents of formaldehyde are employed per cobalt phthalocyanine radical.  Amides specified are propionamide, butyramide, benzamide, urea, biuret, formamide, acetamide.  In examples, cobalt phthalocyanine is reacted with paraformaldehyde in sulphuric acid, alone or in presence of acetamide, formamide, or urea, and with paraformaldehyde in methylsulphuric acid. Specification 322,169, [Class 2 (iii)], is referred to.
Patent GB-787125-A (GB)
Title: Improvements in or relating to apparatus for heating liquids, gases or liquid or gaseous suspensions by electrical induction
IPC: H05B6/02
Filed: 1953-12-23
Abstract: 787,125. Heating fluids by induction. SCHORG, C. Dec. 23, 1953 [Dec. 23, 1952], No. 35819/53. Class 39(3) Liquids or gases or liquid or gaseous suspensions are heated in a vessel 1 of non- magnetic material which is surrounded by an induction coil 2 and has within it spaced from its inner walls an elongated open-ended cylinder 3 of ferro-magnetic material e.g. iron or nickel. The cylinder 3 rests on feet 4 and may also be supported from the lid of the vessel. In Fig. 3 an open-ended ferro-magnetic cylinder 7 is spaced within a cylindrical member 5 of non-magnetic material round which are placed two induction coils 6 through which A.C. is passed. A closed non-magnetic cylindrical body 9 is placed within the member 5. Liquid or gas to be heated enters at 11, passes down under the edge of the cylinder 7 heated by induction and up over a non-magnetic baffle 8 down to an outlet 12. The heating effect may be varied by varying the distribution of the turns of the induction coil or by varying the thickness of the walls of the ferro-magnetic cylinders The walls' of the apparatus may be of elliptical or of other cross section, and the thickness of the walls may vary along their length to vary the crosssectional area of the flow path. The walls may be plated with an anti-corrosive material. Several members of different thickness of walls may be used.
Patent GB-1197726-A (GB)
Title: Improvements relating to Decorative Laminates
Inventor: LANG ARTHUR BUDDLE
IPC: B32B27/04
Filed: 1966-08-10
Abstract: 1,197,726. Decorative laminates. FORMICA INTERNATIONAL Ltd. 1 Aug., 1967 [10 Aug., 1966], No. 35387/66. Heading B5N. A laminate comprises a printed paper sheet or other decorative layer carrying a coating consisting of a transparent thermosetting resin in which is dispersed finely divided quartz with a maximum particle size of 50 microns and fibres of a length not exceeding 100 microns and having a refractive index approximating to that of the resin. Preferably, the particles of quartz have a size range of 10-15 microns, the fibres are of cotton or other cellulosic flock with a length range of 30-50 microns (in certain cases an optical brightener may be added), and the coating weight is between 90 and 110 gms. per sq. m. The resin is preferably melamine-formaldehyde and the printed paper sheet is first impregnated with melamine - formaldehyde, urea-formaldehyde or melamine - urea - formaldehyde. The coating composition preferably includes a small quantity of sodium alginate as a penetration control agent and to reduce the wetting capacity of the resin. The sheet may be dried between impregnation and coating but is preferably dried only after coating by being passed through an oven. Cut portions of the sheet are then assembled as the top layers of laminates comprising also six sheets of kraft paper impregnated with a phenol formaldehyde resole which are heated and pressed, and then cooled while still under pressure.
Patent GB-865787-A (GB)
Title: Hand tool for cutting or trimming paper and like sheets
IPC: B43M7/00
Filed: 1958-11-07
Abstract: 865,787. Cutting-appliances. SUMERFIELD, W. Feb. 4, 1960 [Nov. 7, 1958], No. 35860/58. Class 31 (2). A hand tool for cutting or trimming paper and like sheets comprises spaced guides 1, 2 for leading a sheet to cutter means 6, 7 and a sheet edge guide 16 aligned with the cutter means so that the sheet edge produced by the cutter means serves as the sole guide means for the tool as it is drawn across the sheet. The cut edge of the sheet is maintained in engagement with the guide 16 by means of a resilient roller or rollers 17. Rollers 12, 13, preferably spring-loaded, are provided to engage the sheet before it engages the cutter means. The surfaces of the guides 1, 2 may be flat or ribbed longitudinally and the entry edges 3, 4 of the guides may be provided with markings or graduations. The guide 2 is provided with an exit space 11 to permit a severed portion of the sheet to leave the general sheet plane. The cutter means shown comprise a pair of rotary discs and to start the cut, one or both discs may be given an initial rotary motion. Alternatively, the cutter means may comprise a pair of stationary cutter elements or one stationary element coacting with a rotatable element.
Patent GB-750824-A (GB)
Title: Apparatus for transferring strips or sheets of a gelatinous or like substance from a moving surface of a conveyor to a moving surface of a dryer
IPC: F26B25/00
Filed: 1953-12-29
Abstract: 750,824. Sheet delivery apparatus. WEISS, E. W., [trading as WEISS-TROCKNUNGSANLAGEN]. Dec. 29, 1953 [Dec. 29, 1952], No. 36099/53. Class 100 (1). Apparatus for transferring gelatin sheets from one moving band to another is characterised in that means are provided for subjecting the sheet, in the region where transference is to take place, to a pressure difference which acts on it through openings in the first moving band so as to force the sheet away from that band on to the other band. As shown, sheets of gelatin are carried by a perforated metal conveyer band a for transfer to a drying band i. As the band a passes over the band i it also passes under, and adjacent to, two chambers e, f, having perforated bottoms adapted, when a sheet is wholly under the chamber f, to register with the perforations in the band a. At this instant, pressure is applied to the chamber f to force the sheet g on to the band i, and at the same time suction is applied to the chamber e to ensure retention of the sheet h on the conveyer a until it has, in turn, reached the position of discharge under the chamber f.
Patent GB-1435544-A (GB)
Title: Disposable circuit breaker
IPC: H01H9/10
Filed: 1973-07-30
Abstract: 1435544 Automatic circuit-breakers WESTINGHOUSE ELECTRIC CORP 30 July 1973 [31 July 1972] 36226/73 Heading H1N A disposable circuit-breaker has an operating mechanism releasably restrained by an armature member 63 responsive to movement of a bimetallic element 59 which deflects in response to sustained overcurrents of a first value, electromagnetic tripping means provided by a magnetic member 85 on the element 59 which attracts the armature 63 in response to fault currents of a second value higher than the first, a fusible link 91 in series in the normal current path through the circuit-breaker and fusing in response to current exceeding a threshold above the second value, and a housing enclosing these components and formed by members secured together by rivets 11, or other means, which have to be destroyed before the housing members can be separated. Thus a short-circuit current which might damage the bimetallic element, blows the link which cannot be easily replaced.
Patent GB-1191834-A (GB)
Title: Improvements in or relating to Pill Boxes
IPC: B65D83/04
Filed: 1966-08-12
Abstract: 1,191,834. Pill dispensers. CHELTON (HOLDINGS) Ltd., and S. G. HUDSON. 14 Aug., 1967 [12 Aug., 1966], No. 36270/66. Heading B8P. A pill &c. box comprises an elongated body portion 10 and a sliding cover 15 preferably of resilient transparent plastics, stops 20, 23 limiting movement of the cover, and an aperture 16 in one of the side walls, the cover having a projecting portion 18 forming a closure for the aperture when the cover is at one limit of its travel, Fig. 1. The body portion has upstanding walls 21 which in conjunction with the cover prevents pills entering the region of the aperture when the cover is in the closed position. The cover has a projection 22 which carries a pill towards the aperture when the cover is opened, and a grip surface 24.
Patent GB-855333-A (GB)
Title: Improvements in or relating to three-dimensional photographic recording
IPC: G01S7/04
Filed: 1956-11-23
Abstract: 855,333. Radar. MUNZ, O. J. Nov. 28, 1956, No. 36391/56. Class 40(7). [Also in Group XX] Scale models or representations of three dimensional objects are made by a process comprising the steps of determining by radar scanning the contours of the object in one, e.g. horizontal, plane, producing an image thereof, focusing the image on a photo-sensitive emulsion layer to expose the latter, developing and fixing the layer, covering the fixed layer with another layer of unexposed photo-sensitive emulsion, exposing this second layer to an image of a contour of the object produced by a radar scanning in a second parallel plane and repeating the steps to produce the three dimensional model. As shown a fluorescent image of the contour of the object in one horizontal plane is produced on the screen of a cathode ray tube 4 by a radar system including an antenna and reflector movable about horizontal and vertical axes. Light from the fluorescent image is focused by an optical system 16 on a photo-sensitive layer carried by a piston 5 vertically movable within a cylinder 3. After exposure, processing liquids are admitted to the chamber from tanks 2 a,b,c,d,e and the processed layer dried. Light sensitive emulsion is then admitted to the chamber from a container 2 to form a layer on the processed layer, the piston is adjusted vertically to bring this layer into focus in the optical system and an exposure to a radar scan at a different horizontal plane is made. Repeated exposures result in the three dimensional model of the object. The various operations may be effected automatically by a suitable electric circuit containing control cams for operating the various elements.
Patent GB-337638-A (GB)
Title: Improvements in golf club shafts
IPC: A63B53/00
Filed: 1929-11-28
Abstract: 337,638. Morgan, R. Nov. 28, 1929. Shafts. - A shaft for golf clubs, fishing rods, &c., is formed of a metallic core 3 having longitudinal ribs on its exterior and surrounded by mitred and grooved contiguous strips 1 of non- metallic material, held together and to the core by adhesive. The core is formed of light flexible material such as aluminium and may be either hollow, Fig. 2, or solid, Fig. 3. The strips 1 are formed of raw bamboo or hickory and are secured by glue.
Patent GB-447783-A (GB)
Title: Improvements relating to the production of transparent materials from benzyl cellulose
IPC: C08L1/00
Filed: 1934-12-20
Abstract: In a process for the preparation of heat-resistant and light-resistant transparent products such as films, foils, or plastic masses from benzyl cellulose, there is incorporated with the purified benzyl cellulose an inorganic or organic copper compound in such a small quantity that no substantial discolouration of the product is caused.  The amount of copper introduced is generally of the order of 1 part per 1000 parts of benzyl cellulose.  Examples of copper compounds which are suitable are copper sulphate, copper acetate or salicylate, the copper derivative of aceto-acetic ester, or ammoniacal copper hydroxide.  Other materials such as fireproofers may also be added to the compositions.  In an example, crude benzyl cellulose is purified by dissolving it in a mixture of benzene and acetic acid or in glacial acetic acid if desired with a mineral acid, and re-precipitating it by the addition of alcohol and water and subsequently washing it.  The benzyl cellulose thus obtained had an ash content of less than 0,1 per cent.  Solutions of this benzyl cellulose in benzene and alcohol and containing 0,15 grams of the copper derivative of aceto-acetic ester or an equivalent amount of ammoniacal copper hydroxide per 100 grams benzyl cellulose yielded films which remained flat and supple compared with a film containing no copper after exposure to a sunlight lamp.  Similar results were obtained with films of benzyl cellulose plasticized with 7,5 per cent of tri-phenyl phosphate and containing 0,5 parts of copper per thousand in the form of copper acetate.  Films containing copper were also found to retain their flexibility and elasticity, and not to discolour on exposure to heat as compared with films containing no copper. Specifications 323,525, [Class 95], and 435,539 are referred to.
Patent GB-914124-A (GB)
Title: Improvements in or relating to cooling systems for supersonic aircraft
Inventor: QUICK DESMOND FREDERICK JOHN
IPC: B64D13/06
Filed: 1959-10-30
Abstract: 914,124. Ventilating aircraft. NORMALAIR Ltd. Oct. 18, 1960 [Oct. 30, 1959], No. 36859/59. Class 137. [Also in Group XIII] Air bled from the engine compressor 1 of a supersonic aircraft is cooled by expansion turbine 5 and the evaporator 7 of a compression refrigerating system and is then supplied to cabin 8 through pipe 9, at least part of the air being recirculated. As shown, all the air is recirculated and the cabin has humidifying and purifying means 44, 45. Alternatively tolerable conditions are maintained by constantly replacing foul air with fresh air. As shown, the bled air is first cooled in exchanger 3 by ram air expanded in turbine 12 driving a compressor 15 exhausting spent air to atmosphere. Turbine 5 drives a fan 11 which recirculates the cabin air through pipe 10. The refrigerant compressor 17 is driven by a turbine 23 supplied with ram air. The refrigerant condenser 18 is cooled by ram air expanded in turbine 25 driving a compressor 29 exhausting spent air to atmosphere. In a modification, Fig. 2 (not shown) part of the spent cabin air passes in series through a heat-exchanger, a turbine and a second heat-exchanger, the heat-exchangers serving to cool bleed air; the refrigerant compressor is driven by the expansion turbine driven by the bleed air.
Patent GB-1487319-A (GB)
Title: Immersion heater head
IPC: H05B3/06
Filed: 1974-09-23
Abstract: 1487319 Immersion heater IMI SANTON Ltd 23 Sept 1974 [3 Aug 1973] 36932/73 Heading H5H [Also in Division B3] In an immersion heater head formed by cold pressing sheet metal into a dish shape with a cylindrical portion terminating at one end in an end wall and at the other end widening out into a spanner engaging portion 1, the cylindrical portion and end wall are formed from two sheets of metal 2, 3 and a screw thread 13 is formed on the cylindrical portion by a thread rolling operation which deforms the metal of both sheets 2, 3.' Sheet 3 is made of a metal resistant to the fluid being heated, e.g. copper when the fluid is water, and sheet 2 is made of steel. The thread rolling operating may be sufficient to unite the sheets 2, 3, but if not an adhesive may be used. Relative rotation between sheets 2, 3 during thread rolling is prevented by the provision projections, e.g. ribs on one sheet engaging grooves on the other. As shown, flanges 12 about holes 11 provided in sheet 3 engage complementary holes in sheet 2 to prevent rotation. The holes receive the heating element and a thermostat tube.
Patent GB-797489-A (GB)
Title: Improvements in or relating to the degreasing of metal objects
Inventor: KOCHMANN CURT
IPC: C23G5/04
Filed: 1956-12-04
Abstract: <PICT:0797489/III/1> <PICT:0797489/III/2> Metal objects are degreased by bringing them into the vapour zone of a heated volatile solvent, for example trichlorethylene, where they serve as a condensation surface until the temperature of the objects reaches the temperature of the vapour, whereafter the vapour rises above the objects and, by acting on a thermostat, causes heating of the solvent to be discontinued and, at least indirectly, also causes the objects to be returned to the starting position.  As shown, a carrier basket 2, in which the objects are placed, runs vertically on guide rails 3 situated within a container 1, and is moved by means of motor 5 and chain 6 and counterbalanced by weight 9.  Solvent is placed in the lower part of container 1 and is heated by electric heaters 10.  The objects are loaded on to tray 19 of the basket and motor 5 is started by a switch which also switches on the heaters 10.  The tray is thereby lowered to the lower portion of container 1, whereupon the vapour of the boiling solvent condenses on the objects and drops back into the lower part of the container.  As the objects warm up the vapour rises progressively up the container until the temperaturesensitive element 12 of thermostat 11 is reached.  The thermostat then operates to switch off the heaters and, through a time delay switch, also causes the basket to be raised after a suitable time to the original upper position.  Vapour which is not condensed on the objects themselves is condensed by means of cooling coils 13 and returned to the container.
Patent GB-1399612-A (GB)
Title: Trucks having cab tilting mechanisms
IPC: B62D33/067
Filed: 1973-08-03
Abstract: 1399612 Tilting cabs FORD MOTOR CO Ltd 3 Aug 1973 37059/73 Heading B7B A tiltable cab 11 is supported in use by springs 13, 14 as described in Specification 1,399,611 and is tilted about pivots 12 by a cylinder 17 and piston-rod 18. The piston 18 is slidable in a bearing 20, Fig. 4, in this trunnion 19 having a stop 22 to limit the free movement of an abutment 21 fixed to the piston-rod 18. A suspension bracket 14 has flanges 24, 25 formed with a slot 26 provided with a ramp 27 forming a stop and engaged by pegs 28 on the abutment 21 when the cab is in tilted position to prevent downward movement of the rod 18 relative to the cab 11.
Patent GB-1002776-A (GB)
Title: Voltage integrator circuit
IPC: G06G7/184
Filed: 1963-09-20
Abstract: 1,002,776. Integrating circuits. BENDIX CORPORATION. Sept. 20, 1963 [Sept. 21, 1962], No. 37132/63. Heading G4G. A pulse voltage integrator comprises a resistor 44 (Fig. 1) connecting the input and output and two circuits interconnected across the output, these circuits including at least one diode 52, at least one transistor 58 and a condenser 50 connected to the base of the transistor and to the diode, so that the transistor conducts when a signal of one polarity is applied to the input, the magnitude of the current through the transistor being determined by the charge on the condenser. The integrated output appears at terminal 25. The circuit shown in Fig. 1 will integrate positive polarity pulses, and transistor 58 is an NPN type. The circuit includes an adjustable resistor 69 for modifying the time constant of the integrator and a diode 46 in parallel with the resistor 44 for providing a fast discharge path for the condenser when the switch 34 is set to its alternative position, making contact with the terminal 38, so that the circuit is particularly adapted for fast repeat operation. A similar circuit using a PNP transistor and oppositely connected diodes may be used to integrate negative signal pulses (Fig. 2, not shown). In order to integrate pulses of either polarity two such opposite circuits may effectively be connected in parallel, as shown in Fig. 3. The transistors 116 and 126 are matched as closely as possible, and the resistors 146 and 148 are then adjusted to match the gain characteristics fully. The diodes 124 and 134 provide for the rapid discharge of the condenser 144, and the conducting transistor is determined solely by the polarity of the input and not by the charge on the condenser 144.
Patent GB-906479-A (GB)
Title: Method for carbonizing fibres, and articles produced therefrom
IPC: D01F9/16
Filed: 1960-10-31
Abstract: <PICT:0906479/III/1> A process for the production of a carbon fibre comprises the heating non-thermoplastic regenerated cellulose fibre in an inert atmosphere through a temperature range of from about 250 DEG F. to about 500 DEG F., said heating requiring at least 8 minutes to attain said 500 DEG F. temperature.  The apparatus includes a 4-burner, gas-fired, box-kiln, furnace 10 provided with a side port 11. Mounted inside the furnace on ceramic blocks 12 was a set of three rectangular iron pans 14, 15 and 16 of progressively increasing size.  The pan 14 was provided with quartz cloth insulation 20 on the sides and bottom thereof to insulate the fibres from the iron of the pan and is layered with the cellulose fibres for treatment.  The fibres can be activated by treatment with steam produced in tubing 30 by gravity drip feed of water from bottle 39.
Patent GB-1351719-A (GB)
Title: Triazolobenzodiazepines
IPC: C07D487/04
Filed: 1972-08-10
Abstract: 1351719 Triazolobenzodiazepines UPJOHN CO 10 Aug 1972 [13 Sept 1971] 37316/72 Heading C2C Compounds of the general formula (R 1  = H, C 1-3  alkyl; R 2  = pyridyl, 2-pyrimidyl, furyl, pyrryl, thienyl, C 1-3  alkyl, C 2-3  alkenyl- C 5-7  cycloalkyl or cycloalkenyl; R 3  = H, halo, gen, NO 2 , CF 3 , C 1-3  alkoxy or alkylthio, di-(C 1-3  alkyl) amino) and their acid addition salts are prepared by reacting a compound of the formula with trifluoroacetic acid, optionally followed by salt formation. The starting materials are prepared by reacting the corresponding thione with hydrazine hydrate; the thiones are obtained by reacting the ketone with phosphorus pentasulphide. The above compounds are sedatives, hypnotics, anticonvulsants, tranquillizers and muscle relaxants, and increased growth rate and feed efficiency of livestock. They may be administered in the form of pharmaceutical or veterinary preparations or food premixes containing them in association with a carrier.