baber/WOPTO huggingface dataset:
Patent GB-981946-A (GB)
Title: Improvements in or relating to bridges or like structures
IPC: E01D19/06
Filed: 1963-10-23
Abstract: 981,946. Road expansion joints. MASCHINENFABRIK ESSLINGEN. Oct. 23, 1963 [Dec. 5, 1962], No. 41912/63. Heading E1G. An expansion joint of the type between a bridge deck or road 4 and an abutment or second road 10 to cover a gap f has supporting members 6 extending across the gap and supporting a flexible plate 1 connected to the first road part 4, the plate 1 curving downwards to a location lower than the surface of the second road part 13 such that on relative movement of the road parts the plate move round the curved path. The supporting members 6 are slidably located in plates 7 in one road section and may be supported on a bearing 9 in the other section or hinged thereto. The flexible plate 1 is a rubber carpet with transverse reinforcing bars 16 having flattened ends to slide on the supporting members 6 and locating dowels to engage the underside of flanges on the members 6. Two or more plates 1 may be joined at their edges.
Patent GB-1323745-A (GB)
Title: Laser materials
IPC: H01S3/16
Filed: 1970-09-02
Abstract: 1323745 Lasers WESTINGHOUSE ELECTRIC CORP 2 Sept 1970 [22 Sept 1969] 41928/70 Heading H1C [Also in Division C4] A silicate oxyapatite laser crystalline material is of formula CaM 4-x-y (SiO 4 ) 3 O : Ax,Sy where M is La and/or Gd, A is Nd, Er or Ho, S is a sensitizer ion of Mn when A is Nd<SP>3+</SP>, a sensitizer ion of Yb when A is Er<SP>3+</SP> or a Cr, Tm, Er or Yb sensitizer ion when A is a Ho<SP>3+</SP> ion, x is 0À001 to 1 and 0 < y < (4 - x) when A is Er<SP>3+</SP> or Ho<SP>3+</SP> and 0 # y < (4-x) when A is Nd<SP>3+</SP>, for example 0 < y < 1 and 0À001 < x < 0À30. Monocrystalline state and m.p. of 2000 to 2200 C. is disclosed. Fig. 2 (not shown) illustrates incorporation in a resonate cavity and with a Q-switch (e.g. phthalocyanine in solution). Figs. 3 and 4 respectively (not shown) illustrate the fluorescence and excitation spectrums of single crystal CaLa 3À9 Nd 3À1 (SiO 4 ) 3 O perpendicular to the C axis. Various excitation and emission mechanism are discussed in respect of Fig. 1 (not shown). In preparation, reactants of 99À9% purity were preferred at 1300 C. to drive of water, then melted in an iridium crucible. Crystals were pulled from the melt by the Czochnalski technique. The furnace was surrounded by a quartz cylinder attached by a neoprene gasket and brass flange, insulation for the crucible being by ¢ inch thick zirconia quadrants stacked in the cylinder. Thermal distribution through the melt was by adjusting the crucible in the field of the work coil and by changing the quadrants and top plate spacing. Temperature control was by a light pipe leading to a radiomatic detector fed to a recorder controller which via further control apparatus, determines the coil field excitation. Protection from oxidation was by argon atmosphere and crystals were up to ¢ inch diameter and 2 inches long. Other crystal sizes and emission wavelengths and bandwidths and decay times are disclosed. Cooling rates varied 2 to 6 hours. Reflecting surfaces in the laser may be evaporated Al overcoated with #/10 quartz for protection, resonant reflectivities being 99À2%. Laser apparatus dimensions and constructional details, and pumping wavelengths are given. UV was prevented from reaching the laser by supporting in a double cylinder filled with a water filter solution of NaNO 2 . Laser thresholds were measured utilizing a 1À06 Á interference filter between laser and photocube to reduce background signal. Operation with a Q-switch containing a metallo-organic compound in a solution such as a phthalocyanine.
Patent GB-967805-A (GB)
Title: Finished leathers and the production thereof
IPC: D06M15/267
Filed: 1960-12-08
Abstract: A thermoplastic coating resistant to wet-rubbing and substantially free of dragginess, on leather, comprises a crystalline copolymer of monoethylenically unsaturated monomers, examples of which are given, the copolymer containing a total of not less than 90% by weight of (i) recurring chlorinated units of the formula -CH2.C.Cl2-, and (ii) recurring ester units of the formula <FORM:0967805/B1-B2/1> where R represents a C1 to C4 alkyl group, said chlorinated units and ester units being present in amounts of 55-80% and 20-45% respectively, based on the combined weight of chlorinated and ester units in the copolymer.  The copolymer may have a molecular weight in the range from 100,000 to several million and has been prepared by the emulsion copolymerization of a monomer mixture comprising or consisting of vinylidene chloride and one or more C1 to C4 alkyl acrylates, examples of which are given.  The leather may carry a multilayer thermoplastic coating at least two layers of which contain a crystalline copolymer as defined above; at least one of the layers containing the crystalline copolymer may also contain a pigment, examples of which are given, which may be present in an amount from 5 to 150 parts by weight per 100 parts of copolymer.  The coated leather may be produced by providing on the leather a first dried coating from an aqueous dispersion containing the crystalline copolymer, the dried coating containing crystallite formations but substantially no spherulite formations, and providing on the first dried coating a second dried coating from an aqueous dispersion containing the crystalline copolymer, the second coating likewise containing crystallite formations but substantially no spherulite formations.  The coating may be provided by applying an aqueous dispersion containing 1-30% by weight of the crystalline copolymer, drying the thus-coated leather at 50-110  DEG C. for 10 seconds to 10 minutes, and repeating these operations to produce a second dried coating.  The coated leather may be embossed or smooth-plated at a temperature of 65-116  DEG C. before application of the second coating.
Patent GB-424054-A (GB)
Abstract: 424,054. Furnace grates. NESFIELD, A. G., Ashbourne, Barton Court Road, New Milton, Hampshire, and ROBINSON, H., 11, King Street, St. James's, London. July 11, 1933, No. 19635. [Class 51 (i)] Apparatus as set out in Specification 400,196 for operating and controlling grates of the reciprocating bar type is provided with a modified form of master control valve in which the piston rod of the operating cylinder rotates a cam-plate 207 having a plurality of arcuate cam-bars 208 to 211 which actuate in predetermined sequence a plurality of spring controlled poppet valves located in a valve box and arranged to control the pressure inlet to and exhaust from the back and front of the firebar cylinders. The piston rod of the operating cylinder reciprocates a bar 200x carrying tappets 168, 168<x> and formed with a rack 201 which engages a pinion 204 on the shaft of the cam-plate 207. The poppet valves and their housings are screwed into one side of a valve box 212 to the other side of which are attached pipes connected to the main pressure and exhaust lines and to the firebar cylinders. The valve box is divided into a number of chambers, one 216 being connected by an aperture 221 and a pipe 83 with the main pressure line and another 213 by an aperture 222 and a pipe 82 with the main exhaust line. In opera,- tion, the tappets 168, 168<x> actuate valves 174 and 177 to reverse the movement of the piston of the operating cylinder in a manner similar to that described in connection with Figs. 15 and 16 of the prior Specification. Assuming the bar 200<x> to be moving to the right, the rotation of the cam-plate will cause the cam-bar 208 to open successively valves 169 and 170 followed by the opening of valve 171 by the cam-bar 209. This allows pressure liquid to pass from the front of the firebar cylinders, which are arranged in three groups, by way of pipes 13, 228, the respective valve 169, 170 or 171 into the chamber 213 and thence to exhaust. Simultaneously cam bar 211 opens a valve 175 enabling pressure liquid to pass from pipe 83 and chamber 216 through the valve to a chamber 217 from which leads a pipe 78 connected to the back of the firebar cylinders. The bars are thus moved forwardly in three stages. On the reversal of the direction of rotation of the cam plate the above valves are allowed to close and cam bar 210 opens a valve 179 thereby connecting the back of the cylinders to exhaust by way of a pipe 80 through aperture 229 to a chamber 216* and through the valve into the chamber 213. Simultaneously cam-bar 211 opens a valve 176 enabling pressure liquid to pass from chamber 216 to chamber 214, port 195, chamber 215 and through non- return valves 194 into a chamber 220 connected by pipes 13 with the front of the firebar cylinders. The firebars are then moved rearwardly simultaneously and the above operations are repeated. The valves with stems such as 233 are each contained within an apertured housing 234 provided with a gland 235, and tappet 237.
Patent GB-1326933-A (GB)
Title: Process for producing a metal and an installation for carrying out this process
IPC: F27B17/00
Filed: 1970-09-04
Abstract: 1326933 Producing metals; distilling BATTELLE MEMORIAL INSTITUTE 4 Sept 1970 [5 Sept 1969 7 Aug 1970] 42585/70 Heading C7D [ Also in Division C1] Volatile metals such as sodium or magnesium, or non-volatile metals such as Ti, Zr, Hf, U, V, Nb, Ta, W, Cu, Fe, are produced by reducing at least one halide of the metal with calcium carbide the reduction being carried out in a solution of calcium carbide entirely dissolved in a molten mixture of at least one halide of Na, K, Rb, Cs and at least one halide of Mg, Ca, Ba, Sr. Na may be produced in the apparatus shown in which calcium carbide and sodium chloride are fed from hopper 12 to a mining chamber 2 in which they are dissolved with recycled calcium chloride from line 36. The solution passes through sieve screen 15 to separate solid particles and enters heated reaction chamber 3 at e.g. 830‹C. through valve 5, 6. The solution reacts as it falls over baffles 4 giving off Na vapour which, with some NaCl, passes to condenser 18, NaCl condensing as solidion baffles 19, Na condensing as liquid on cooled tubes 21. The suspension of carbon in Ca Cl 2  resulting from the reaction passes down a heated barometric column 28 to receptacle 29 where the carbon separates and is decanted at 30, Ca Cl 2  being partially recycled through line 36 and partly discarded through line 34. The condenser is connected to a vacuum pump by conduit 26 to produce a reduced pressure of 10<SP>-4</SP>-10<SP>-2</SP> atmosphere in the condenser and reaction chamber.
Patent GB-1433114-A (GB)
Title: Method of conditioning phthalocyanine pigments and product thereof
IPC: C09B67/20
Filed: 1974-10-01
Abstract: 1433114 Conditioning phthalocyanines with 4-sulphophthalic acid CHEMETRON CORP 1 Oct 1974 [1 Oct 1973] 42595/74 Heading C4P Phthalocyanine pigments are conditioned by mixing with 4-sulphophthalic acid or anhydride at 50-100 C. The phthalocyanine may be halogenated and may be a copper phthalocyanine. The mixing time is not critical and may be 5 minutes to 6 hours. The pigments are suitable for paints, lacquers, plastics, elastomers and inks.
Patent GB-1275784-A (GB)
Title: Improvements in lock-out circuits
Inventor: HAMPSON PETER SAMUEL
IPC: H04Q3/00
Filed: 1969-08-27
Abstract: 1275784 Automatic exchange systems PLESSEY CO Ltd 14 July 1970 [27 Aug 1969] 42670/69 Heading H4K A lock-out circuit (used for example to determine which of a plurality of service demaning speech-path relay sets is to be connected to a register controller) comprises a plurality of stages each including a static switching device which when not disabled, responds to an associated service demand initiating operation of a corresponding slow response output device and inhibiting operation of the static switching devices of subsequent stages, operation of the said output device after its delay inhibiting the response of switching devices in preceding stages. The switching device may be a transistor and the output device a reed relay or slow response electronic equivalent. The circuit functions as a selecting chain selecting on a fixed priority basis between inputs arriving before an output device responds and then functions to lock out any further requests regardless of their priority until the selected requesting unit has been serviced. In one embodiment transistor switches 1TA, 2TA and 3TA each respond when the associated service requests (arriving in random fashion) are present at inputs 1IP, 2IP and 3IP respectively. Any transistor which responds switches to conduction supplying positive potential via diode 1DB, 2DB or 3DB to a conductor 10. By virtue of diodes 1DC, 2DC and 3DC this potential is propergated only to the right switching via resistors such as 2RC and 3RC transistors such as 2TB and 3TB of any stages to the right to conduction, disabling their switching transistors. Thus only the left most of the switching transistors which have operated remains energized for a significant period and energizes an associated output relay 1R, 2R or 3R for a sufficient period to cause it to operate. The energized relay operates an output contact 1R1, 2R1 or 3R1 to effect the desired selection and operates a contact 1R2, 2R2 or 3R2 to supply positive potential via a conductor 11 and diodes such as 1DA, 2DA and resistors 1RB and 2RB to the disabling transistors 1TB, 2TB of preceding stages. A second embodiment using separate feedback paths for each stage and employing OR and inhibit gates in these paths is described. This embodiment (Fig. 1, not shown) includes a plurality of complete lock-out circuits interconnected to form a larger lock-out network in similar fashion.
Patent GB-1158336-A (GB)
Title: Process for the Direct Production of Highly Concentrated Aqueous Formaldehyde Solutions.
IPC: C07C47/04
Filed: 1966-09-27
Abstract: 1,158,336. Rectification under reduced pressure. KARL FISCHER APPARATE-U. ROHRLEITUNGSBAU. 27 Sept., 1966 [1 Dec., 1965], No. 43019/66. Heading B1B [Also in Division C2] A distillation column 2 which may be used for the concentration aqueous formaldehyde solutions, is connected to a condensation and absorption apparatus, comprising two serially connected columns 5, 7, associated with heatexchangers (coolers) 10, 11, the head of column 5 being connected by a vacuum pump 9 to the base of column 7. The head product of rectifier 2 is fed to the base of the column 5, and part of the liquid run off from the base of column 5 is returned to the head of the rectifier as reflux. Some of the liquid collecting in the base of column 5 and of column 7 is pumped into the top of column 5. Some of the liquid collecting in the base of column 7 is pumped to an upper section of the column. The rectifier 2 may comprise two axiallyconnected columns, the head of one of these columns being connected to the condensation and absorption device, and in which the base of this column is connected via a suction pump to the head of the second column, means being provided for conveying the head product of the second column, via a pressure regulator, to the base of the first column. The base of the second column is provided with an outlet and with additional heating means which may consist of a falling film evaporator.
Patent GB-1020730-A (GB)
Title: Rotary piston compressor
IPC: H02K7/14
Filed: 1963-11-01
Abstract: 1,020,730. Rotary piston compressors. BORSIG A.G. and WANKEL G.m.b.H. Nov. 1, 1963 [Nov. 23, 1962], No. 43155/63. Heading F1F. A rotary piston compressor of the n and n+1 lobe type, comprises a two-lobed outer rotary piston 1 coupled by gearing 7 to an eccentric threesided inner rotary piston 6. The piston 1 formed by a jacket portion 1a and end plates 1b, lc is open at one end face and formed at its other end face with a shaft 2 supported by spaced-apart bearings 3, 4 between which is located a driving motor 5 mounted in a common casing 15 with the compressor. The piston 6 formed by an end wall 6b, a jacket surface 6a and a journal 6b is supported on a bearing 8 in a housing 9 secured to the casing end cover 17. Working medium mixed with lubricating oil enters the casing through an inlet 18 and passes the motor 5 to cool and lubricate the motor and the bearings 3, 4 and thence passes into the compressor working chambers 20 through inlets 11. The working medium is then compressed and passes from each working chamber through a port 12 in the inner piston jacket surface 6a, a pressure passage 10 around the bearing 8 and an outlet passage 19 in the end cover 17. An adjustable axial bearing 13 is lubricated through a bore 21.
Patent GB-1368449-A (GB)
Title: Preparation of cyclohexanone by selective vapour
IPC: B01J23/44
Filed: 1971-09-16
Abstract: 1368449 Cyclohexanone BAYER AG 16 Sept 1971 [17 Sept 1970] 43251/71 Heading C2C [Also in Division Bl] Cyclohexanone is prepared by vapour phase hydrogenation of phenol at a temperature of from 100‹ to 350‹ C. in the presence of catalyst which comprises palladium supported on carrier material which comprises an aluminium spinel. Palladium constitutes preferably from 0.01 to 10 weight per cent of the catalyst; aluminium spinel constitutes preferably at least 20 weight per cent of the carrier material which preferably has a surface area of from 20 to 120 m.<SP>2</SP>/g. and an average pore diameter of from 200 to 800 Angstroms and may have been prepared from alumina and a compound, for example hydroxide or salt such as nitrate or organic acid salt, of at least one metal selected from lithium, magnesium, zinc, cobalt and nickel. As exemplified, phenol is hydrogenated at 150-220‹ C. in the presence of catalyst prepared from palladium (II) chloride and carrier material which has been prepared either from gamma-alumina and lithium hydroxide or zinc nitrate or from active alumina and magnesium nitrate or cobalt (II) nitrate and in the presence of comparison catalyst prepared from palladium (II) chloride and carrier material which is alpha-alumina or gammaalumina, each catalyst being treated with hydrogen at 200‹ C. prior to use.
Patent GB-1479508-A (GB)
Title: Organohydrogenpolysiloxanes
IPC: C08G77/04
Filed: 1974-10-07
Abstract: 1479508 Addition of Si-H groups to ethylenic bonds SHINETSU CHEMICAL CO 7 Oct 1974 [8 Oct 1973] 43377/74 Heading C3S An organohydrogenpolysiloxane is prepared by (A) reaction i.p.o. a Pt catalyst of an ethylenically unsaturated compound with a stoichiometric excess of an organohydrogenpolysiloxane having at least two SiH groups and the average unit formula R a H b SiO (4-a-b)/2  where R is an organic group, a is 1-2, b is 0-1 and a+b is 2-3, (B) addition of a benzothiazole compound in molar excess over the Pt catalyst, and (C) distillation of the product. Preferably the starting siloxane is a cyclic trito hexa-siloxane or a hydrogen-terminated polydimethylsiloxane. In Examples 1-7 is reacted with vinyl cyclohexene monoepoxide, alpha methylstyrene, ethyl acrylate, allyl acetate, methyl methacrylate or allyl glycidyl ether in toluene i.p.o. [CH 2  = CH 2 .PtCl 2 ] 2  or Pt/Al 2 O 3 ; in Examples 8-9 alpha methylstyrene is added to H(Me 2 SiO) 3 H/H(Me 2 SiO) 4 H mixture, [MeHSiO] 6  or Si(OSiMe 2 H) 4 ; in all cases one organic group is introduced into the siloxane and an inhibitor is added, before distilling the product, which is benzothiazolyl disulphide, 2(4-morpholinyl-thio or -dithio)-benzothiazole.
Patent GB-1181560-A (GB)
Title: Improvements relating to Sputtering.
IPC: C23C14/34
Filed: 1968-09-12
Abstract: 1,181,560. Sputtering apparatus. INTERNATIONAL BUSINESS MACHINES CORP. Sept.12, 1968 [Sept.15, 1967], No.43382/68. Heading C7F. In a R. F. sputtering apparatus in which the R. F. current is applied to the target electrode 16 through a variable impedance 71, 72, 73, the substrate holder 32 is mounted on insulating legs and is connected to a conductive surface of the chamber through a variable impedance. Inert gas, e.g. argon, is supplied to the chamber through a valve 49. The holder 32 is mounted on insulating legs 34, and its temperature is controlled by a cooling coil 64. The temperature of the target is controlled by supplying cooling fluid to a pipe 50. Silica may be sputtered on to silicon. The target electrode may have a shield 20 as described in Specification 1,114,644.
Patent GB-1533873-A (GB)
Title: Rigid waterproof container for slurried explosives
IPC: B65D3/04
Filed: 1975-10-22
Abstract: 1533873 Containers for slurried explosives INDIAN EXPLOSIVES Ltd 22 Oct 1975 [8 Nov 1974] 43399/75 Heading B8D [Also in Division F3] A waterproof and rigid container for slurried explosives comprises a tube formed by superimposing partially or wholly a shrinkable polyolefin film on paper or paper laminate and rolling the film and paper into the shape of a tube, the inner layer being the film and the outer layer being the paper, and thereafter crimping the tube at one end, the tube so formed being externally coated with a waterproofing agent under predetermined temperature conditions thereby causing a partial shrinkage of the film. The waterproofing agent consists of wax and rosin. The open end of the container is crimped when the tube has been filled with explosive and is sealed by subjecting the end to a jet of hot air or to a spray of molten waterproofing agent.
Patent GB-1427707-A (GB)
Title: Oil separators in conjunction with air compressors
IPC: B01D46/12
Filed: 1972-09-21
Abstract: 1427707 Separating oil from air HYDROVANE COMPRESSOR CO LTD 20 Sept 1973 [21 Sept 1972] 43772/72 Heading BIT An oil/air separator 10 to be used in an air compressor, is divided into compartments by felt pads 20, each compartment containing baffles 24 and 28 whereby air leaving a pad 20 is directed upwardly and then downwardly to a lower portion of the succeeding pad 20. The oil separated from the air drains into wells 27. The oil/air mixture is introduced through inlet tube 15 having apertures 16 and the cleaned air is discharged through outlet 17.
Patent GB-1205518-A (GB)
Title: Improvements in or relating to the treatment of textile material
Inventor: YOKOYAMA SHIKANOSUKE
IPC: D06M15/643
Filed: 1968-09-14
Abstract: 1,205,518. Silicone-treated textile material. HAKUYOSHA CO. Ltd. and T. CHITANI. 14 Sept., 1968, No. 43848/68. Heading D1P. Textile material which has been impregnated with an uncured silicone resin is subjected to ionizing radiation in the presence of air at a temperature of at least 30‹C. The total dosage is 10<SP>4</SP>-10<SP>7</SP> rad. The radiation may be effected by γ-, X-, electron, proton, or neutron rays. The textile material may be of cotton, wool, silk, rayon, acetate, polyethylene, polpropylene, polyvinylchloride, nylon, or polyacrylurea. The silicone may be employed in water or acetone; and the irradiation may be effected in the presence thereof. The material may have been dyed with a metal-containing dyestuff. It may also be impregnated with a non-silicone resin. It may be further heated after irradiation.
Patent GB-1086207-A (GB)
Title: Liquid developer for electrophotography
IPC: G03G9/12
Filed: 1964-10-27
Abstract: Liquid developers for electrostatic images (see Divisions G2-G3) comprise a suspension of a particulate pigment mixed with a compound containing isocyanate groups in an insulating liquid. Specified isocyanates are a polyisocyanate resin, a polyurethane alkyd derived from dehydrated caster oil, soya bean oil and a polyisocyanate, the isocyanate adduct "Suprasec" (Registered Trade Mark) and a polyisocyanate solution.  The pigments used are pigmented resins, carbon black, phthalocyanine blue and Prussian blue.  The pigment may also be mixed with e.g. caster oil, bodied soya bean oil, hydrogenated rosin, bodied safflower oil or polystyrene, or mixtures thereof. Suitable insulating liquids are specified.  In an example (8) polystyrene, a carbon black, pigmented resin and a polyisocyanate were dispersed in toluol.