baber/WOPTO huggingface dataset:
Patent GB-1052135-A (GB)
IPC: H01L21/316
Abstract: 1,052,135. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Nov. 5, 1965 [Nov. 9. 1964], No. 45545/64. Heading H1K. Semi-conductor devices are made in multiple by depositing insulation on one face of a semiconductor wafer, diffusing impurity through holes etched in the insulation, and then depositing further insulation on said face and etching holes through it within the confines of the aforesaid holes. The wafer is next heated to diffuse impurity inwards or outwards through the holes to increase or reduce the surface impurity concentration there. Contact is finally made to areas of different surface impurity con - centration through holes etched in the existing or further layers of insulation within the confines of the first mentioned holes. Planar transistors may be made in this way from a P-type germanium wafer. Arsenic or antimony is diffused through silica in the first step to form the base zones and its surface concentration reduced at the emitter sites by outdiffusion. Alternatively the first diffusion gives the required surface concentration for these sites, which are masked during a second diffusion to increase the surface concentration. In both cases the emitter zone and electrodes are formed by vapour depositing aluminium and alloying it to the wafer and the base electrodes by vapour deposition of a graded chromium gold layer using oxide masking to define the areas of contact.
Patent GB-1053252-A (GB)
IPC: H04M1/05
Abstract: 1,053,252. Supporting telephone receivers H. HAUS. June 19, 1963 [June 19, 1962; April 27, 1963], No. 24338/63. Heading H4J A device for supporting the handset of a telephone comprises a detachable magnetic connection between the handle of the handset and a supporting device. The supporting device may comprise a neck harness, Figs. 4, 5, 9 (not shown), which carries a contact plate or permanent magnets to co-operate with a complementary unit attached to the handset handle. The handset unit may comprise a resilient channel which grips a pivoted block containing magnets, Figs. 1, 2, 3 (not shown). A ball-and-socket support is described, Figs. 6, 7 and 11 (not shown), and this may be mounted on a clip for the operator's lapel or slidably mounted on a neck harness. Telescopic and flexible support arms are also described, Figs. 10 and 12 (not shown). The connection plate may comprise a plurality of laminated flexible foils of magnetizable material, such as particles embedded in a binder, and may be sewn into the operator's clothing.
Patent GB-1053855-A (GB)
IPC: C10G47/00
Abstract: 1,053,855. Hydrocarbon conversion catalysts. GAS COUNCIL. Aug. 1, 1963 [Aug. 3, 1962], No. 30016/62. Heading B1E. [Also in Division C5] A catalyst for a gas-making process was prepared as follows:-a boiling solution of an alkali metal carbonate was added to a solution of aluminium and nickel nitrates at its boiling point and the precipatate filtered and repeatedly slurried until the pH of the effluent was 7 to 8. The precipitate was dried in air, at 110‹C., calcined at 500‹C, and ground to a B.S. mesh no. in the range 72 to 200 (210 to 75 microns). The nickel compounds were reduced by reaction with a sulphur-free hydrogencontaining gas at 450‹C., the resulting catalyst comprising (by weight) 28% Ni, 72% alumina.
Patent GB-1054051-A (GB)
IPC: C08K5/5398
Abstract: 1,054,051. Preservation of cis-rubbers. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 19, 1964 [March 4, 1963], No. 8608/63. Heading C3P. Synthetic cis-rubbers, particularly polybutadiene and polyisoprene, are stabilized by the addition of a dithiophosphate of the formula wherein R is alkyl, substituted alkyl, cycloalkyl, aryl or aralkyl, A is a metal atom, and n is an integer 1, 2, 3, or 4.
Patent GB-1225900-A (GB)
IPC: C07C17/00
Filed: 1969-08-07
Abstract: 1,225,900. Allyl and methyl-allyl chlorides. FARBWERKE HOECHST A.G. 7 Aug., 1969 [7 Aug., 1968], No. 39554/69. Heading C2C. Allyl chloride and methyl-substituted allyl chloride are prepared by reaction of oxygen with (a) hydrochloric acid and an olefin having 3 or 4 carbon atoms or (b) a monochloroalkane having 3 or 4 carbon atoms, over a telluriumcontaining catalyst at elevated temperature, and recovering volatile catalyst components from the reaction products by washing at 35‹ to 180‹ C. with (a) aqueous hydrochloric acid, the concentration of hydrochloric acid being maintained at at least 15% by wt., optionally in part by absorption from the reaction products, or (b) water in which hydrochloric acid is absorbed from the reaction products to a concentration of at least 15% by wt. The reaction products are washed by passage into the sump or into a packing layer of a packed column charged with the washing liquid. External heating may be applied. The washing liquid enriched with the volatile catalyst components may be returned to the reactor continuously or discontinuously at one or more points, optionally through nozzles for fine dispersion, and may serve to cool a catalyst in the form of a fluidized bed. Alternatively, the catalyst components may be extracted from the washing liquid and returned to the reactor in solid form. The tellurium-containing catalyst may be supported and may also contain vanadium, molybdenum and tungsten compounds and ammonium or amine salts. A specified catalyst comprises tellurium powder, silica, ammonium chloride, vanadium pentoxide and phosphoric acid.
Patent GB-1226454-A (GB)
IPC: C07F11/00
Filed: 1968-10-31
Abstract: 1,226,454. #-Allyl metal halides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 Oct., 1969 [31 Oct., 1968], No. 51734/68. Heading C2J. [Also in Division C5] #-Allylic transition metal halides R (n-x) MX x , where X is a halogen, M is a group IV A -VI A  transition metal, preferably Zr, n is the metal valency and x = 1 to (n - 1), are obtained by reaction between a compound R (n-y) MX y , where y is less than x and = 0 to 2, and an organic halogen compound; R is an allylic group R 1 R 2 C=C(R 3 ).CR 4 R 5  where R 1 -R 5  are the same or different and may be H or hydrocarbyl, e.g. alkyl, cycloalkyl, aryl. Two or more of R 1 -R 5  may be linked to form an unsaturated ring system. The halogen compound is preferably R<SP>1</SP>X (where R<SP>1</SP> is a C 1 -C 6  alkyl, alkenyl or alkynyl group, optionally aromatic-substituted), but may be CH 2 Cl 2  or CHCl 3 . The reaction may be carried out in a solvent, e.g. an inert hydrocarbon, at 0‹ C. or below, using appropriate molar quantities of the reagents. According to examples, the following reactions may be carried out (A = #-allyl, Ma = #-methallyl) :
Patent GB-1226460-A (GB)
Inventor: SPANGEMACHER K
IPC: F28B9/08
Filed: 1969-10-22
Abstract: 1,226,460. Steam condensers. MASCHINENBAU-A.G. BALCKE. 22 Oct., 1969 [2 Nov., 1968], No. 51685/69. Heading B1B. [Also in Division F4] Steam discharged from turbine 2 flows to combined injection and surface condenser 19, the injection water being pumped to the condenser via throttle 28 from a dry part 5 of cooling tower 1, and the water for cooling pipes 20 being supplied from the wet part of tower 1. The dry and wet parts of tower 1 are supplied with separate streams 14, 15 of cooling air. Condenser systems which comprise only surface condensers are also described.
Patent GB-1226764-A (GB)
IPC: B21F3/00
Filed: 1968-05-03
Abstract: 1,226,764. Making electric coils; coiling. AVO Ltd. 3 May, 1968 [8 May, 1967], No. 21215/68. Heading B3E. An automatic coil-winding machine for making coils for deflecting yokes on cathoderay tubes has a winding head means for causing the speed of rotation thereof to be reduced and to subsequently stop after a predetermined number of revolutions, means for passing an electric current through the wound coil to cause fusion of the self-setting enamel on the wire and means for feeding the wire to be wound into the coil from a bulk supply and attaching it to the winding head. The speed control means includes electromagnetic friction drives 7, 8 (Fig. 7), which couple the belt drive of the machine via gearing 10, 11, 13 and 14 to rotate the shaft 5 at two different speeds. Actuation of the friction drives 7, 8 is effected alternatively by pre-set revolution counters 7a, 8a. A pulley 99 on the shaft 5 and belt 16 rotate a winding shaft 18 initially at high speed to wind the wire 41 rapidly around formers 28 and 29 and finally at a reduced speed prior to stopping the shaft in a desired position when the end of the wire is reached. The stopping means comprises a disc 19 provided with a recess 20 for receiving a stop roller 21 mounted on a pivoted lever one arm of which is linked to an electromagnetic control 27 actuated by the pre-set counter 8a. The formers are provided with wire guides 95. The former 29 is freely rotatable on a shaft 18<SP>1</SP> which does not rotate but can be reciprocated by a pneumatic cylinder 30. A solenoid-operated brake prevents rotation of the former 29 when it is moved away from the former 28. The wire is withdrawn from a container 97 and is tensioned by passing between adjustable felt pads 42, 43. Clamps 45 oscillated by a pneumatic cylinder and rack- and-quadrant gearing and opened and closed by a solenoid, feed the wire to pneumatic clamps 66 on the former 29. The jambs of the clamps are knurled for stripping the insulating enamel from the wire. When the wire has been wound around the formers it is cut and stripped of insulation at its lower end by pneumaticallyoperated toothed clamps 72, 73. The clamp 72 is electrically heated to assist the stripping. When the clamps 66, 72 and 73 are closed an electric current is automatically passed through the wire causing the self-setting part of the wire to fuse whereupon the coil is shaped by pressing the former 28 against the former 29 by actuation of pneumatic cylinders 77. The shaft 18<SP>1</SP> is then axially displaced by the pneumatic cylinder 30 causing the formers to open and a cam-operated ejector rod 89 (Fig. 3 not shown) removes the coil from the former. The coil falls on to a rotatable plate 91 provided with a hinged platform 97 beneath which is a micro switch for controlling the electric circuits. The plate 91 flicks the coil into a container.
Patent GB-1230755-A (GB)
IPC: E04B1/66
Filed: 1966-10-21
Abstract: 1,230,755. Ornamenting. W. R. GRACE & CO. 20 Oct., 1967 [21 Oct., 1966; 23 Nov., 1966; 8 Feb., 1967], Nos. 22789/70, 22792/70 and 22794/70. Divided out of 1,230,753. Heading B6G. [Also in Division E1] A waterproof seal on a surface, e.g. a road, floor, wall or ceiling is produced by applying an exposed face of a membrane of waterproofing pressure-sensitive adhesive supported on a sheetlike substrate, the membrane being at least 0À025 cm. thick and the membrane-substrate structure being at least 15 cm. wide. If necessary overlapping structures may be used to seal the whole surface. The membrane can be a bituminous adhesive, preferably containing natural or synthetic rubber, polychloroprene, butyl rubber, oil-based mastics, rosin composition and may be reinforced with glass fibre scrim. The substrate may be permanently adhered to the membrane as a film of natural rubber, polyethylene, polypropylene, polyamide, polyester, polyurethane, polyvinyl chloride, vinyl chloride-vinylidene chloride copolymer, polychloroprene, butyl rubber, aluminium or copper foil, woven and non-woven fabrics, e.g. woven glass tissue, hessian, cotton scrim, bituminous roofing felt. The surface of the substrate remote from the membrane may be coated with adhesive to which particulate material, e.g. aggregate, sand or cork granules is applied. Alternatively the substrate may be a removable protective layer, e.g. siliconized paper. The structure may be a laminate of the protective layer, the membrane and either an adherent substrate or a second protective layer. For securing cladding material, e.g. polystyrene tiles to a floor, wall or ceiling, the protective layer on one face of the laminate is removed, the exposed face of the membrane applied to the surface, the second protective layer removed and the cladding material applied.
Patent GB-1238967-A (GB)
IPC: B23Q11/14
Filed: 1969-03-27
Abstract: 1,238,967. Grinding. HERBERT LINDNER G.m.b.H. 27 March, 1969 [2 July, 1968], No. 16148/69. Heading B3D. A grinding machine includes a cooling device comprising at least one outlet nozzle 10 on the grinding wheel slide 7, the nozzle(s) being connected to a tank 14 containing coolant and arranged to direct a flow of coolant towards the grinding position. The cooling device also includes a plurality of coolant outlet nozzles 38 which are connected with the tank 14 by a flow line, are supported by the table 2 of the machine, and are spaced apart between centres 4, 6, carried by the headstock 3 and tailstock 5 of the machine to direct a second flow of coolant on to a workpiece 9 located between the centres. The tailstock centre 6 is supported for axial movement and is arranged to actuate an electric control device 22 which in turn is arranged to actuate a valve 31 included in the flow line between the tank 14 and the nozzles 38 and to actuate a coolant cooling device 46 associated with the tank 14. In the thread grinding machine shown, when the workpiece 9 expands due to heat created by grinding, it moves the tailstock centre 6 against the action of a spring 16, so that a rod 20 carried by the centre 6 moves the feeler pin 21 of the electric control device 22. Contacts 25, 26, 27 carried by pin 21 send signals to an amplifier 29 which cause first the opening of a magnetic valve 31 to allow delivery of coolant to nozzles 38, and secondly the switching on of the cooling device 46. The device 46 is switched off when the coolant reaches a minimum temperature measured by a thermostat 47. In a second embodiment the valve 31 is a motorized valve with an adjustable flow crosssection and the device 22 is an inductive device which controls the flow-cross-section of the valve. In this case the device 46 is not operated until valve 31 reaches its maximum flow crosssection. In a further embodiment, the tank 14 is divided into chambers containing cooled and uncooled coolant respectively, and the electric control device controls operation of a mixing valve including a magnetic valve and a motorized valve, the former valve controlling the flow of uncooled coolant and the latter controlling the flow of cooled coolant, to the nozzles 38. The nozzles 38 are adjustable relative to the workpiece.
Patent GB-1239349-A (GB)
IPC: F01D21/00
Filed: 1969-04-02
Abstract: 1,239,349. Turbomachine blades. MOTOREN UND TURBINEN UNION MUNCHEN G. m. b. H. April 2, 1969 [April 3, 1968], No. 17399/69. Heading F1T. In a turbomachine the blades 1 of the rotor or stator each have a resistance wire 3 embedded therein such that should a crack, e.g. 9, occur in the blade the wire breaks, the resistance change being sensed by a warning device 8. All the wires 3 of a stage or of several stages may be connected via terminals 5, 6. In the case of a rotor, the wires 3 are connected to the warning device 8 via a slip ring contact 9<SP>1</SP>. The device 8 produces an audible or visual signal in the event of a blade crack.
Patent GB-1250804-A (GB)
IPC: A63H18/12
Filed: 1968-11-11
Abstract: 1,250,804. Model slot car racing system. SANROY DEVELOPMENT CO. Ltd. 11 Nov., 1968, No. 53239/68. Heading A6S.  A model car racing system comprises (figure 1), a track 15 with a plurality of slots 16  therein, a plurality of electrical conductors 22 each connected to a separate circuit and disposed on at least one side wall 18, 20 for conducting electrical energy to a different car, means for establishing a potential on said members, and control means to vary the potential supplied. As shown, each conductor 22 on the side walls 18, 20 of the slot is engaged by a contactor 81 with a position which may be varied with respect to the body of a flag 48 to which it is attached. The flag is attached to the body of a car. Each flag also contacts the bottom member 19 of the slot through a ground contactor 82. A number of cars may run on the same slot, each having its contactor in contact with a different conductor 22. The flag assembly comprises a generally vertically extending terminal post, a ground contactor 82 affixed to said post and electrically connected thereto, an electrical buss affixed to said post and electrically insulated therefrom and a contactor 81 affixed to said buss.  The terminal contact pick-up assembly 49 comprises a terminal post socket into which post is inserted, a ground contactor 56 affixed to said post socket and another contactor 57 attached but insulated from said socket. A lane changer for the model car system comprises a transfer slot 104 between adjacent racing slots 16 and means 96 associated with each slot to form a continuous slot from one slot to its adjacent slot. A lap counter is also disclosed.
Patent GB-1256744-A (GB)
IPC: C01B7/00
Filed: 1969-01-09
Abstract: 1,256,744. Gas mixture separation process. AGRIPAT S.A. 9 Jan., 1969 [10 Jan., 1968], No. 1288/69. Heading F4P. [Also in Division C1] Liquid hydrogen chloride and a liquid mixture of Cl 2  and ClCN are produced when a gaseous mixture of HCl, Cl 2  and ClCN is freed of water and any other polar solvent and passed via inlet 1 into closed continuous distillation column 9 provided with filling bodies where the gas mixture passing to heat exchanger 7 is liquefied by cooling and returns to the column where it is then subjected to fractional distillation in still 5. A liquid mixture of Cl 2  and ClCN is withdrawn from tube 4 at the base of the still, and gaseous HCl exiting from the top of column 9 is cooled in heat exchanger 7, to a temperature of- 105 to - 100 C., e.g. by means of difluorochloromethane as coolant, to give liquid HCl which is withdrawn from outlet 6. The lower portion of column 9 is maintained at - 40 to - 20 C., preferably - 25 to - 35 C. by heating coil 3. The Cl 2 /ClN mixture obtained is recycled to a reactor in which HCN and Cl 2  are reacted in the vapour phase to produce cyanuric chloride, which may be condensed and removed to leave the gaseous mixture referred to above. Conduit 1 may be fitted with a drying agent, e.g. P 2 O 5 .
Patent GB-1257905-A (GB)
IPC: B60C19/00
Filed: 1970-07-08
Abstract: 1,257,905. Vehicle wheels. S. TSUCHIYA. 8 July, 1970 [12 July, 1969], No. 33107/70 Heading B7C. A vehicle wheel is fitted with a pneumatic tyre 30, the cavity 30a of which contains a plurality of metallic balls 32 free to move within the cavity and present in an amount such that when the wheel is held vertical and stationary the maximum radial depth of balls in the cavity is less than the radial height of the cavity. The balls may have a diameter between 1 and 1000 mm., be of steel, lead or lead alloy and be lubricated with a silicone or other oil.
Patent GB-1267154-A (GB)
IPC: F27D1/14
Filed: 1970-02-11
Abstract: 1,267,154. Reactors. WHESSOE Ltd. 11 May, 1971 [11 Feb., 1970], No. 6702/70. Heading G6C. In a nuclear reactor concrete pressure vessel, mineral fibre thermal insulation is secured against the internal steel liner of the pressure vessel by studs welded to the liner. The insulation, 5, is urged against the liner, 2, by the collar, 4<SP>1</SP>, screw threaded on to the stud, 1. The cover plates 7, 8 and the foils 6 are retained on the collar by the nut 9 and spacer 10.
Patent GB-1275324-A (GB)
IPC: G01N27/22
Filed: 1970-05-04
Abstract: 1275324 Measuring permittivity INSTITUT MEKHANIKI POLIMEROV AKADEMII NAUK LATVIISKOI SOVETSKOI SOTSIALISTICHESKOI RESPUBLIKI 4 May 1970 [5 May 1969] 21310/70 Heading G1U In order to measure the permittivity of a block of material 4, the material is positioned adjacent three electrodes 1, 2, 3, the third being selectively connectable 6 to either of the first two, which together form a capacitor determining the frequency of a measuring oscillator 5, and the following sequence of operations is performed:- (a) Firstly the third electrode 3 is connected 6 to the first electrode 1, as shown, a counter 11 is cleared 12 to zero, the resulting frequency f 1  of the measuring oscillator 5 is mixed 10 with a reference frequency f 0 , which is designed to be less than the frequency f 1 , from a reference oscillator 9, and the counter is allowed to count cycles of the lower side band f 1 -f 0 , for a reference period, and (b) Secondly the third electrode 3 is connected to the second electrode 2, the resulting frequency f 2  is mixed as before with the reference frequency f 0  which is designed to be larger than the frequency f 2 , and the counter 11 is allowed to increase its previous count by counting cycles of the lower side band f 0  -f 2  for a further reference period. Providing that certain design conditions, discussed in the specification, are satisfied, the final count will be proportional to the required permittivity and will be independent of any errors caused by air gaps between the electrodes and the material under examination.
Patent GB-1288632-A (GB)
IPC: C08L39/08
Filed: 1969-07-07
Abstract: 1288632 Coated glass yarns FIBREGLASS Ltd R BURNS and A E JOHNSON 16 June 1970 [7 July 1969] 34081/69 Heading B2E [Also in Division C3] An aqueous composition for sizing glass fibres comprises a polyvinyl pyridinium salt and a silane, and optionally a water-soluble film forming agent. In Examples compositions are formed from the following ingredients and used to size glass fibre yarns:-a commercial polyvinyl pyridinium salt, acetic acid, γ-aminopropylmethoxysilane, diammonium hydrogen phosphate, paraffin wax, water, gelatine, polyethylene oxide, ethylene glycol, hydroxypropyl cellulose, polyacrylamide and polyvinyl alcohol. The yams are further dipped with a composition of resorcinol formaldehyde resin, formalin, water, sodium hydroxide, natural rubber latex, butadiene styrene polymer latex and a vinyl pyridine terpolymer.
Patent GB-1295186-A (GB)
IPC: B01D35/18
Filed: 1970-11-04
Abstract: 1295186 Tubular heat exchangers UPO OSAKEYHTIO 4 Nov 1970 [4 Nov 1969] 52441/70 Heading F4S [Also in Division B1] Heat exchange surface in the form of a tubular framework is arranged in a two-part casing 1, 2 to exchange heat with a fluid circulated through the casing, and is adapted also to support a filter for said fluid. The fluid which is thus filtered and heated or cooled, may comprise air, water (in particular swimming-pool water), or flue gas. As shown, the tubular framework comprises an upright helical coil 11 around which are disposed metallic or plastic nets 12, 13 providing support for the filtration fabric 14 removably secured in position by zip-fastener 15. The nets and filter form an annular fluid space se aled at the ends by sealing rings 10, 16. Unfiltered fluid is admitted to the casing through a pipe 6 and flows through the filter into said space where it is heated or cooled. The filtered and heated or cooled fluid is discharged from said space via a duct connection 5. The functions of the inlet and outlet 5, 6 may (as denoted by the arrows) be reversed if the filter fabric is placed inside the nets 12, 13. The filter may extend over the ends of the tubular framework, or the ends may be closed off.
Patent GB-1303442-A (GB)
IPC: C08J3/28
Filed: 1970-01-02
Abstract: 1303442 Gross-linking by photo-radiation DUNLOP HOLDINGS Ltd 8 Dec 1970 [2 Jan 1970] 144/70 Heading C3P Unsaturated polymers are cross-linked by exposure to radiation of wavelength 2000- 7000 Š (including visible and near U.V. light) in the presence of a photosensitizer selected from chlorophyll a or b, xanthophyll and mixtures thereof. Cross-linking may be aided by the presence of a radical initiator, e.g. tellurium or ferric dimethyldithiocarbamate, or N,N-diethylthiocarbamoyl - 2 - benzothiazolyl sulphide, and/or a radically polymerizable monomer, e.g. styrene. The initiator and monomer may be impregnated into the polymer by swelling in a solvent, e.g. toluene, or in the monomer in the case when both monomer and initiator are to be impregnated. The polymers may be shaped prior to exposure to the radiation, the examples relating to the treatment of sheets of butadiene/acrylonitrile rubber and ethylene/propylene/dicyclopentadiene terpolymer.