baber/WOPTO huggingface dataset:
Patent GB-905675-A (GB)
Title: Improvements in colour filters particularly for making colour prints
Inventor: FUCHS HEINZ
IPC: G02B7/00
Filed: 1958-11-27
Abstract: 905,675. Colour filters. ZEISS JENA, CARL VEB. Nov. 27, 1958, No. 38314/58. Class 97 (1).  A colour filter comprises a base disc 1 carrying sector-shaped filters of the primary colours, the green filter sectors covering half the area of the blue and red filter sectors. Rotatable on the base disc 1 is a disc 3 having sector-shaped apertures such that, when a mark 6 on the disc registers with a label 7 on the base, half of the red and blue filter sectors are covered and so the thin colour areas are effected in equal proportions. Concentric with these two discs and superposed thereon are two further discs 8A, 8B provided with handles 10A and 10B. These two discs also have sector-shaped apertures and the movement thereof is limited by stops 11A, 11<SP>1</SP>A and 11B, 11<SP>1</SP>B, respectively, on the disc 3. When handle 10A engages the stop 11A and the handle 10B engages the stop 11B, the opaque areas of the two discs 8A, 8B register with the opaque areas of the disc 3 as shown. In the position of the filters shown in the drawing with the mark 6 registering with the label 7, the discs allow correction of yellow and green colour predominance by clockwise rotation of the handle 10B and counter-clockwise rotation of the handle 10A, such correction being facilitated by the provision of a pointer 13A on disc 8A for co-operation with a dial 12A and by the provision of a pointer 13B for co-operation with a dial 12B. To allow correction of other colour predominances, the base disc 3 must first be adjusted until the mark 6 registers with label 7<SP>1</SP> or 7<SP>11</SP>.
Patent GB-1057315-A (GB)
Title: Ratio-recording spectrophotometer using a slow response radiation detector
IPC: G01J3/42
Filed: 1963-09-30
Abstract: 1,057,315. Photo-electric spectrophotometers. BECKMAN INSTRUMENTS Inc. Sept.30, 1963 [oct.1, 1962], No. 38364/63. Heading G1A. In an alternating beam spectrophotometer sample and reference pulses are separated and integrated, the integrated signal being compared with the measured signal to give an error signal which alters the integrated signal. An infrared beam from a Nernst lamp 12 is directed on to a rotating sector mirror 14 which alternately directs the beam through a reference material 18 to a stationary mirror 20 and from thence to a rotating sector mirror 22, and through a sample material 28 to the mirror 22 which acts as a beam combiner. The output radiation from the mirror 22 passes through a monochromator of the type disclosed in Specification 864,981 to a thermocouple detector 32 whose output is connected through a mixer 34 to an amplifying circuit 36 provided with a transformer 66 giving balanced outputs. These outputs are coupled to reference and sample signal information storage channels 44 and 46 by demodulator 42 having two switches 74, 76 which operate in synchronism with the rotation of the mirrors 14 and 22. The signals stored in the channels 44 and 46 are periodically sampled by a modulator 48 having a switch 86 also driven in synchronism with the mirrors 14 and 22, and fed along a feedback circuit 50 to the mixer 34 in such a manner that the pulse due to the reference signal opposes the reference output signal at the mixer 34 and the sample pulse signal opposes the sample output signal at the mixer. Error signals are thereby produced and used to modify the stored signals. The interference components and undesired effects of large signal transients which occur with slow response detectors of infrared radiation are thus cancelled out. The ratio of the sample and reference transmittances is recorded by a pen recorder driven by a self balancing potentiometer 54, 58. The apparatus may be used with visible or ultraviolet light.
Patent GB-981518-A (GB)
Title: 2-fluoro-steroids
IPC: C07J75/00
Filed: 1963-09-30
Abstract: The invention comprises 2-fluoro-17a -methyl-D 2 - 5a  - androstene - 3,17b  - diol - 4 - one, 2a -fluoro - 4 - hydroxy - 17a  - methyltestosterone and a process for the preparation of a mixture thereof in which 17a -methyl-D 2 - 5a  - androstene - 3 - (N - pyrrolidinyl) - 17b  - ol - 4 - one dissolved in an inert organic solvent is fluorinated with perchloryl fluoride and the pyrolidine group is split off.  The products may be separated by crystallization and/or chromatography. Alternatively 2 - fluoro - 17a  - methyl - D 2 -5a -androstene - 3,17b  - diol - 4 - one is obtained by reacting 4 - hydroxy - 17a  - methyltestosterone dissolved in an inert organic solvent with an aliphatic diester of oxalic acid in the presence of an alkaline condensing agent and acidifying to obtain 2-alkoxalyl-4-hydroxy-17a -methyl-testosterone, reacting this product with perchloryl fluoride in the presence of an alkali metal alcoholate and reacting the steroid product further with alkali metal alcoholate in alcoholic solution followed by acidification. As condensing agent there may be used sodium hydride in a mineral oil or sodium methoxide in t-butanol.  Pharmaceutical compositions having anabolic activity and containing the 2-fluoro compounds above are administered orally or parenterally in the form of solutions, suspensions, tablets, powders, pills and capsules.  Specification 848,288 is referred to.
Patent GB-1523610-A (GB)
Title: Electrophotographic colour processes
IPC: G03G5/12
Filed: 1975-09-19
Abstract: 1523610 Electro-photographic colour processes MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 Sept 1975 [28 Sept 1974 (2) 2 June 1975] 38465/75 Heading G2C An electro-photographic colour process comprises the steps of uniformly charging and imagewise exposing an electro-photographic member comprising a conductive support and a layer containing photo-conductive particles and a sublimable dye or leuco dye, developing the latent image with an acidic toner and then (1) if a dye is used, contacting with a receptor and transferring by heating the dye not covered by the toner or (2) if a leuco dye is used, heating so that the leuco dye sublimes and reacts with the acidic toner to form a dye image which may subsequently be transferred to a receptor by solvent transfer, or the leuco dye in the non-developed areas may be transferred on heating to an acidic receptor to form a dye image. The process is preferably used for multi-colour work using 3 sets of photo-conductive particles sensitized to the colour complementary to the sublimable dye or leuco dye. Specified photoconductors are Zno, ZnS, CdS and Se, carbazoles, anthracenes, naphthalenes, pyrenes, polyvinyl carbazole and polyvinyl anthracene. Specified developers are polystyrenes, polyvinyl pyrrolidone, alkyl resins or phenol-formaldehyde resins admixed with organic acids or phenols or activated clay and an iron carrier.
Patent GB-1360168-A (GB)
Title: Vehicle steering gear
IPC: B62D1/19
Filed: 1972-08-17
Abstract: 1360168 Steering column B LINDSTROM 17 Aug 1972 [23 Aug 1971] 38506/72 Heading B7H A steering column is formed in two parts, namely a lower section 2 connected by a universal joint 2b to the steering box 3 and an upper section 9 to which the steering wheel 10 is attached, the two sections 2, 9 being off-set (see Fig. 2) and being connected by a bevel gear arrangement. As described the bevel gears are located in a housing formed in two parts 2a, 9a which are rotatable relative to each other and the shafts 2, 9 are connected by a bevel gear 12 on shaft 2, gears 13, 15 on an intermediate shaft 14 and gear 16 on shaft 9. The housing 2a, 9a is movable in an arcuate guide 17 (Fig. 4) whose centre of curvature coincides with joint 2b, and can be locked in selected positions by bolts (not shown) passing through bores 18. This allows the angular position of the steering column to be adjusted as shown in Fig. 4. The ends of the shafts 2, 9 are journalled in end caps 11, 11a which are detachably mounted in the housings 2a, 9a so that when an axial force is applied to shaft 2 or 9, e.g. in the event of a collison, the end caps 11, 11a will detach from the housings 2a, 9a to allow the column to collapse. The shaft 9 is also provided with a splined section and a spring 7 which will absorb part of the impact applied to the steering wheel 10 before the end cap 11a becomes detached from the housing 9a.
Patent GB-829744-A (GB)
Title: Improvements in or relating to synchronous-type alternating-current generators
Inventor: RILEY PHILIP ROY HOFF
IPC: H02K19/38
Filed: 1956-12-18
Abstract: 829,744. Alternators. PLESSEY CO. Ltd. Jan. 23, 1958 [Dec. 18, 1956], No. 38522/56. Class 35. In an alternator whose rotor poles 4 are excited through rectifiers 11 from the polyphase armature windings 7 of an auxiliary machine 6 mounted on the alternator shaft 3, the rectifiers are mounted on an insulating or insulated disc 12 so that they may be cooled by an air-blast 13, thus obviating the need for the conventional method using cooling oil fed through a hollow shaft. The windings 7 may comprise six star-connected phases feeding silicon rectifiers, the disc 12 acting as their common output electrode, if desired.
Patent GB-363511-A (GB)
Title: An improved toilet requisite for use in washing the person
IPC: A47K7/02
Filed: 1930-12-24
Abstract: 363,511. Sponges; pads. BURN, D. C., Rydal Mount, Potters Bar, Middlesex. Dec. 24, 1930, No. 38851. Drawings to Specification. [Class 131.] A device combining the properties of a face flannel and a sponge is made by folding a rectangular sheet of cloth or flannel about a central line, sewing or otherwise securing the two parts along two edges, filling the container thus formed with one or several pieces of sponge, and sewing or otherwise closing the mouth of the container. The container may be turned inside out before inserting the sponge so that the united edges are disposed in the interior of the container, and the edges of the mouth may be tucked in before closing.
Patent GB-1463944-A (GB)
Title: Urethane oxazolidines
IPC: C08G18/78
Filed: 1975-09-23
Abstract: 1463944 Urethane derivatives BAYER AG 23 Sept 1975 [28 Sept 1974] 38923/75 Heading C3R [Also in Division C2] Urethanes which contain at least one group corresponding to the Formula II e.g. the novel compounds of the Formula I wherein m is from 1 to 6, n is zero or 1 to 4, R 1  is a C 2-6  aliphatic hydrocarbylene, R 2  and R 3  are hydrogen atoms or C 1-4  aliphatic, C 5-7  oycloaliphatic or C 6-10  aromatic hydrocarbon groups or R 2  and R 3  together complete a C 5-6  cycloaliphatic ring, R 4  is a C 2-6  aliphatic hydrocarbon group and R 5  represents a residue of an organic isocyanate (R 5 (NCO) m+n ), are prepared by reacting organic isocyanates with appropriate hydroxy compounds, in an OH/ NCO ratio of from 4 : 1 to 1 : 20. Polyurethanes may be obtained from the compounds of the above Formula I.
Patent GB-370476-A (GB)
Title: Improvements in the manufacture of rubber articles
IPC: B29C41/14
Filed: 1930-12-30
Abstract: 370,476. Rubber. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(New York Belting & Packing Co. ; 91, Chambers Street, New York, U.S.A.) Dec. 30, 1930, No. 39196. [Class 70.] An aqueous dispersion of rubber is passed into the interior of a tubular body of fibrous material, and a coating of rubber is produced by filtration of the water and soluble matter through the walls of the tube. The dispersion may be put under pressure, and may be treated to increase its filterability. In the production of fire hose, a tube 13 of woven fabric, cord, or the like is clamped at its upper end on a plug 14, and at its lower end to a tube 11. Latex from a tank 1 is forced up the tube 13 by compressed air admitted through a pipe 5, the height being visible in a sight-tube 18 on a tank 17 connected with the plug 14. Serum passes through the tube 13 and drips into a collector 21. When sufficient thickness of rubber is deposited, the tube 13 is emptied by suction through pipe 7, the outside is washed down, and hot air is introduced through a pipe 9 for drying and vulcanizing the rubber. The outside of the tube may be rubberized by applying sheet rubber or a coat of latex. To increase filterability, to ammonia freed latex is added ¢ per cent phenol and .06 per cent trisodium phosphate, and a mix is made consisting of 100 parts of rubber as latex, 1 part zinc oxide, 2 parts precipitated sulphur, ¢ part oxy normal butylthiocarbonic acid disulphide, “ part dibenzylamine, 1¥ part glue, and 1¢ parts solvent naphtha, all mixed as emulsions. The mix is allowed to stand at room temperature for about a month. Another suitable mix is 100 parts of rubber as latex containing 33 per cent solids, 80 parts gilder's whiting, 20 parts mineral flour, 3¢ parts colloidal sulphur, 1 part zinc oxide, 1 part glue, and ¢ part zinc dimethyldithiocarbamate.
Patent GB-840740-A (GB)
Title: A steam stirred homogeneous nuclear reactor
IPC: G21C1/24
Filed: 1956-12-24
Abstract: 840,740. Nuclear reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 24, 1956 [Jan. 27, 1956], No. 39220/56. Drawings to Specification. Class 39(4). The fuel of a nuclear reactor, which consists of solutions or slurries of a uranium or plutonium salt in ordinary or heavy water, is circulated through the critical region by the formation of bubbles of steam, oxygen and hydrogen which, in rising vertically through metal tubes, cause the liquid to circulate upwards through the tubes. On leaving the upper ends of the tubes the fuel passes through the coils of a heat exchanger and being cooled, falls back to the critical reaction region. Control is effected by the normal negative temperature coefficient of the device and by a movable absorbing shield between the reactor and reflector. The circulation rate is determined by the length and diameter of the tubes. Recombination of the oxygen and hydrogen is effected by a catalyst inside the reactor vessel. The materials used are, fuel, enriched uranyl nitrate (U235) or sulphate in ordinary or heavy water, or a plutonium (Pu239); reflector, graphite ; neutron absorbing shield, cadmium or boron ; moderator, water or heavy water; coolant, water; reactor vessel, stainless steel.
Patent GB-1013779-A (GB)
Title: Improvements relating to opening containers formed of wound material
IPC: B65D3/26
Filed: 1964-09-25
Abstract: 1,013,779. Opening containers. CLEVELAND CONTAINER CORPORATION. Sept. 25, 1964 [Sept. 30, 1963], No. 39226/64. Heading B8D. [Also in Divisions F2 and B5] A container, e.g. for biscuits, is helically wound of fibrous material and has an inner liner 16 formed of metal foil backed by kraft paper 20, a middle layer 17 of kraft paper 24, chipboard 22 and newspaper stock 23, and an outer layer formed of a kraft paper backing 32 and label 12. A reinforcing strip 18 of kraft paper is adhered to the layer 23, covering abutting edges 28, 29 of the middle layer, and is also adhered to the label backing 32. Overlapping edges of the liner 16 are joined by adhesive 21. Adhesive layers 26, 33 joint layers 20, 24 and 23, 32 respectively. For opening the container, a tab 37, made, e.g. of acetate rayon, is secured to the strip 18 and to the middle layer 17. By pulling the tab the label 12, backing 32, and strip 18 may be removed. The container ends 13, 14 may then be twisted in opposite directions to break the liner and thereby open the seam of the middle layer.
Patent GB-948752-A (GB)
Title: A process for the manufacture of unsaturated ketones
IPC: C11B9/00
Filed: 1960-11-16
Abstract: Unsaturated acyclic ketones are prepared by reacting a 1-alkanoyl -1- alkyl ketene containing at least 3 carbon atoms in the alkanoyl group in the presence of a basic catalyst with a tertiary a ,b -unsaturated tertiary alcohol of formula: <FORM:0948752/C2/1> <FORM:0948752/C2/2> wherein R is methyl or a group of formula: <FORM:0948752/C2/3> and hydrolysing the acetoacetate so produced that carbon dioxide is evolved and rearrangement occurs to give ketones of formula: <FORM:0948752/C2/4> <FORM:0948752/C2/5> respectively. Specified basic catalysts are tertiary amines and alkali metal alcoholates, pyridine plus a little acetic acid being preferred.  The pyrolysis is preferably carried out between 120-180 DEG C. in the presence of a catalyst e.g. aluminium iso-propylate a promoter e.g. acetic acid and a high boiling solvent e.g. deca- or tetra-hydronaphthalene or diethylene-glycol ethers. The examples describe the preparation of (1) 4,7-dimethyl-octen - 6 - one - 3 from 1-propionyl -1- methyl-ketone and 3-methylbuten -1- ol-3, (2) 8,12-dimethyl -5- ethyltridecatrien-5, 7, 11-one-4 from 1-butyryl-1-ethyl ketene and dehydrolinalool, (3) 4, 7, 11-trimethyl-dodecatrien-4, 6, 10-one- 3 from 1-propionyl-1-methyl ketene and dehydrolinalool, (4) 5-ethyl -8- methyl-nonen -7- one - 4 from 1-butyryl -1- ethyl ketene and 3-methylbuten -3-ol-1, (5) 4, 6, 7-trimethyl-octen -6- one-3 from 1-propionyl -1- methyl ketone and 2, 3-dimethylbuten -1- ol-2 and (6) 5, 6-dimethyl-hepten -5-one-2 and 4, 7, 10, 11-tetramethyl-dodecatrien-4, 6, 10-one-3 from 1-propionyl -1- methyl-ketene and 6-methyl dehydrolinalool.  1-propionyl -1-methyl-ketene and 1-octanoyl -1- hexyl-ketene are prepared from propionyl and octanoyl chloride respectively in the presence of triethylamine under anhydrous conditions.  These ketones may be cyclised to give the cyclic unsaturated ketones of Specifications 948,753, 948,754 and 948,755.
Patent GB-1285179-A (GB)
Title: Improvements in or relating to injection moulding presses
IPC: B29C45/67
Filed: 1969-08-08
Abstract: 1285179 Injection mould closing devices BRITISH UNITED SHOE MACHINERY CO Ltd 8 Aug 1969 [8 Aug 1968] 39686/69 Heading B5A In a two-stage closing injection moulding press, initial closing of a mould 6, 22 is effected by cylinder piston devices 12, 14 having piston rods 16 connected to a platen 20 carrying mould part 22, and final closing is effected by locking a piston 30 to a tubular piston rod 26 slidable in the piston 30 and introducing fluid under pressure into a cylinder 10 housing the piston 30. Arcuate locking segments 76 (Fig. 3) mounted on a tray 72 carried by the piston 30 are adapted to be received within an annular recess 28 in the piston rod 26. The segments 76 are operated by fluid pressure cylinders 86. The cylinder 10 is mounted on four tie bars 8 which are threaded to receive units 34 rotatably mounted in counterbores in the cylinder 10. The height of the cylinder 10 is adjustable by means of an electric motor (not shown) having a drive shaft 44 (Fig. 2) carrying a pinion 42 which drives a chain 40 extending around sprockets 38 secured to the nut 34. Knockout rods 68 mounted on a plate 66 are operated by a cylinder 58 mounted on the piston rod 26, the piston of cylinder 58 being connected to the plate 66 by rods 60, 62 and a plunger 64. Opening of the mould is assisted by two cylinders 50 secured to cylinder 10 and having piston rods 52 adapted to engage a plate 54 secured to the piston 26 by tie rods 56. The piston rod 26 is guided by rollers 130 (Fig. 2). Fig. 7 (not shown) shows the hydraulic circuit for automatic operation of the press.
Patent GB-994761-A (GB)
Title: Improvements in or relating to safety devices for projectile fuzes
Inventor: ABRAMSON HUGO
IPC: F42C15/00
Filed: 1963-10-09
Abstract: 994,761. Projectile fuzes. DIRECTOR GENERAL OF FORSVARETS FABRIKSSTYRELSE. Oct. 9, 1963, No. 39858/63. Heading F3A. A projectile fuze, particularly intended for mortar shells, is provided with a safety device which comprises a piston 3 and a plate 9, which components adhere to one another due to the surface tension effect of a layer of oil or grease 13 between machined parallel faces of these components, and a spring 7 adapted to urge the piston 3 and plate 9 apart and which causes separation after a time delay caused by the layer. In the embodiment shown a cylinder 1 carries a detonator 2 and is urged to rotate about a pin 10 by a spring 6. On launching the projectile, a member (not shown) sets back to release the cylinder 1, but the cylinder is prevented from rotating by set back of piston 3 and the entry of a firing pin 4 within a cavity 8, the piston being retained rearwardly by the grease layer 13. The plate 9 is loosely fitted on pin 10 and is held peripherally by a spring 11, which arrangement allows it sufficient play to ensure parallelism with the piston 3. On separation of plate 9 and piston 3 by spring 7, cylinder 1 is freed to rotate thereby bringing detonator 2 in line with firing pin 4 and a second detonator 5. On impact, the piston 3 is driven rearwardly by direct action of an extension screwed into the piston at 15 prior to launching. The fuze is provided with a detachable humidity-proof cover 14. In a second embodiment the piston and plate are both longitudinally movable within the fuze and are initially held together by a layer 13. On set back of the piston, the plate is rearwardly retained by projections on the pin 10 and spring-urged separation of the components takes place as before after a time interval.
Patent GB-1402456-A (GB)
Title: Plugging of permeable earthen strata
IPC: E02D19/16
Filed: 1972-08-29
Abstract: 1402456 Improving permeability DOW CHEMICAL CO 29 Aug 1972 [30 Aug 1971] 40095/72 Heading E1F [Also in Division C3] The flow of acidic leachate through a porous earthen formation is reduced by adding to the earth a neutral or basic aqueous solution of (1) an acid organic material having a lower solubility in acid than in basic aqueous solution and (2) a water-swellable or watersoluble organic polymer containing a plurality of carboxyl groups and having a viscosity at 25C in aqueous solution at pH 7 of at least 10 cp, whereby a precipitate is formed in the earthen formation. Alternatively a mixture of components (1) and (2) in solid form may be added directly to an acidic pool contained by the earthen formation. Component (1) is preferably a lignin or tannin but may also be a carboxylic acid, polyhydric, phenol, hydroxy- or amino-acid. or acidic fat or protein. Component (2) may be a hydrolysed polymer of an unsaturated amide or a derivative of cellulose or a gum, e.g. pectin or sodium alginate.