baber/WOPTO huggingface dataset:
Patent GB-780019-A (GB)
Title: Improvements relating to electrical storage apparatus
Inventor: DAWSON EDGAR FREDERICK
IPC: H03K3/35
Filed: 1954-12-10
Abstract: 780,019. Electric digital-data storage apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 1, 1955 [Dec. 10, 1954], No. 35845/54. Class 106 (1). [Also in Group XL (c)] A matrix-type array of double-base transistors is used for storing numerical binary data. Each transistor comprises a semi-conductor rod, Fig. 1, to which a potential gradient is applied between base electrodes B, D. Provided the potential applied to a trigger electrode A intermediate B, D is less than the potential at an adjacent point in the transistor no current will flow in the circuit of a collector electrode C disposed opposite the trigger electrode A, but when the trigger potential rises to that of the adjacent point in the transistor, current flows in the trigger electrode circuit and may be detected by a corresponding current flow in the external circuit of the collector electrode C. In the matrix array, Fig. 2, the base electrode B of each transistor is connected to the appropriate row bus-bar 1, 2, 3 ... m, the base electrode D is earthed, and the trigger electrode A connected to the appropriate column bus-bar 1, 2, 3 ... n. Then by applying a positive trigger pulse to a selected column and a negative trigger pulse to a row bus-bar, the transistor at the selected row-column intersection is triggered and the corresponding collector electrode will provide an indication thereof. In this way digital information may be set up in the matrix. Thereafter, further small read-out pulses fed to all trigger electrodes will produce pulse outputs only from the triggered transistors without altering their triggered state. The collector electrodes may be arranged in rows and the stored data read out by gating the collector outputs. Either p- or n-type semi-conducting rods may be used, the various electrode potentials being adjusted accordingly.
Patent GB-1102518-A (GB)
Title: Pelleted zeolite compositions
Inventor: HANSFORD ROWLAND CURTIS
IPC: B01J29/12
Filed: 1966-08-10
Abstract: A hydrocarbon conversion process, for example hydrocracking, isomerization, alkylation, reforming, hydrogenation, desulphurization or denitrogenation comprises contacting a hydrocarbon feedstock at an elevated temperature with a catalyst composition comprising a copelleted mixture of (A) a crystalline aluminosilicate zeolite, and (B) a silica-alumina cogel containing from 1% to 40% by weight of SiO2 and from 60% to 99% by weight of Al2O3. Examples refer to converting a hydrofined gas oil having an end b.pt. of 750 DEG  F. to 400 DEG  F. end point gasoline using 8000 SCF./B. hydrogen and 1000 p.s.i.g., 1.5 LHSV.; converting a cycle oil boiling between 400 DEG F. and 850 DEG  F. and containing 9000 p.p.m. sulphur, 1 p.p.m. nitrogen using 8000 SCF./B. hydrogen, 1500 p.s.i.g., 9.0 LHSV.; hydrocracking the above gas oil feed mixed with 2200 p.p.m. nitrogen. There is general reference to hydrocracking straight run gas oils, heavy naphthas, coker distillate gas oils, deasphalted crude oils, cycle oils derived from cracking operations.  General cracking conditions are: H2 oil ratio, 1000-15,000 SCF./B., pressure 500-5000 p.s.i.g., LHSV. 0.1-20, temperature 400-1000 DEG  F.ALSO:A catalyst composition comprises a co-pelleted mixture of:- (A), a crystalline alumino-silicate zeolite and (B), a binder comprising a co-precipitated alumina-silica co-gel containing from 1% to 40% by weight of SiO2 and from 60% to 99% by weight of Al2O3.  The zeolite may be zeolite Y, and may contain exchangeable hydrogen, magnesium, calcium, zinc, chromium, rare earths.  Other zeolites mentioned are zeolites A, X, L, and mordenite, stilbite, heulandite, ferrierite, dachiardite, chabazite, erionite, faujasite.  The catalyst composition may be prepared by mixing the components in water or milling them together in powdered form.  The finished composition may contain from 3% to 95% by weight of binder (B).  For hydrocracking or isomerization a hydrogenation component, for example platinum, palladium, rhodium, tungsten, molybdenum, chromium or manganese, may be incorporated into the composition, generally in amount from 0.1% to 20% by weight.  Examples relate to palladium-magnesium-hydrogen zeolite Y copelleted with alumina-silica.
Patent GB-1121357-A (GB)
Title: Hydrophilic layers comprising as additives latices containing fluoralkyl groups
Inventor: PAESSCHEN AUGUST JEAN VAN
IPC: C08F18/20
Filed: 1966-08-11
Abstract: An hydrophilic layer having the same transparency in the wet and dry state, comprises an hydrophilic colloid and one or more latices of polymer(s), in which the latex or at least one of the latices is formed by emulsion homopolymerization or copolymerization of a monomer containing fluoroalkyl groups of the formula <FORM:1121357/C3/1> where X represents a -COO- group, a -OCO- group, a -CONH- group or a -O- group, R represents a hydrogen atom or a methyl group, R1 and R11 being the same or different represent hydrogen or fluorine, n is 0, 1 or 2, x and y being the same or different are 0 or 1, and m and p being the same or different, are 0 or an integer from 1 to 10, the refractive index of the polymer latex or latices in the dry state being between 1.38 and 1.44.  The preferred colloid is gelatin.  In Example (1) (A) dodecylfluoroheptyl acrylate is polymerized in the presence of sodium oleymethyl tauride and the sodium salt of 4,41-azo-bis-(4-cyano-valeric acid). Potassium persulphate may be used as initiator and the sodium salt of dioctyl sulphosuccinic acid or a sodium alkyl sulphonate may be used as emulsifying agents.  (B) Ethyl acrylate is polymerized using potassium persulphate. (C) Ethyl acrylate and dodecylfluoroheptyl acrylate are copolymerized using sodium oleylmethyl tauride and potassium persulphate. The polymers are mixed with gelatin.  In Example (2) poly-(trifluoroethyl methacrylate) is prepared as in (1). In Example (3) polyvinyl alcohol, dimethylol urea and poly-(trifluoroethyl acrylate) latex are mixed.  In Example (4) the layers are used in photographic applications.ALSO:Trifluoroethyl methacrylate is prepared by treating trifluoroethanol in anhydrous pyridine with methacrylic acid chloride, m-dinitrobenzene being dissolved in the acid chloride as a polymerization inhibitor.
Patent GB-373564-A (GB)
Title: Improvements in and in the manufacture of powder puffs
IPC: A45D33/34
Filed: 1931-12-31
Abstract: 373,564. Powder-puffs. KAHN, L., D7, 1, Mannheim, Germany. Dec. 31, 1931, No. 36081. [Class 131.] A powder-puff comprises a front part a of plush or similar loose-textured material, a back part of closer textured material having designs and/or lettering interwoven or embroidered thereon, and a strip of ribbon c by means of which the puff may be held, these parts being secured together, with or without filling between the parts a, b, by a line of stitching f, and/or by adhesive, adjacent the edges. The pad may be finished off with an embroidered edging d, e. The back parts b are cut or stamped from a roll or piece of cloth having the lettering or designs already interwoven or embroidered thereon at suitable intervals.
Patent GB-404135-A (GB)
Title: Improvements in or relating to hubs for aircraft and like propellors
IPC: B64C11/04
Filed: 1932-12-22
Abstract: 404,135. Screw propellers. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. Dec. 22, 1932, No. 36328. [Class 114.] In devices for attaching propeller blades f to bosses or hubs a, the latter is formed with an integral back plate b, between which the movable plate c the propeller f is gripped by bolts d which pass through a loose clamping- plate e which bears against the edge of the propeller. Various modifications are described. In one the clamping-plate has an exterior cylindrical surface which engages with a similar surface formed on lugs on the back plate b. The clamping plate may also be arranged to have a pivotal movement about central bolt such movement being limited by bolts connecting front and back plates. The clamping- plates may also pivot at one end about one bolt the other end bolt-hole being slightly slotted to permit radial movement or the clamping- plates may be stepped at their free ends to clear each other.
Patent GB-1348619-A (GB)
Title: Grinding wheels
IPC: B24D3/34
Filed: 1972-08-03
Abstract: 1348619 Abrasive wheels ERNST WINTER & SOHN 3 Aug 1972 [3 Aug 1971 (2)] 36332/72 Heading C4V A grinding wheel comprising diamond granules and/or boron nitride granules and containing metallic or non-metallic binding agents and one or more fillers, one of which fillers at least consists of granules of graphite or mainly graphite-containing material provided with a metal coating. The proportion of the graphite filler or fillers in the mixture of bond and abrasive granules may be between 1% where a non- metallic binding agent is used or 5% where a metallic binding agent is used and 60% by volume, disregarding the metal coating on the graphite granules. The metal coating may amount to 0À5 to 80% by volume of the metalcoated graphite particles. The grain size of the graphite filler or fillers may be between 2 mm. and 0À01 mm. The metal coating on the graphite granules may consist of one or more of the metals silver, copper, gold, aluminium, beryllium, tungsten, molybdenum, nickel, cobalt, iron, chromium, tin, zinc or cadmium. The different metals may be superposed or alloyed with one another in the coating on the graphite granules. The materials alloyed with the metals of the coatings may be alloyed with non-metals such as carbon, phosphorus, sulphur, boron or silicon. Non-metallic fillers other than the metalcoated graphite granules may be present. The abrasive granules employed may also have metal or non-metallic coatings. Suitable organic binding agents are phenolic or epoxide resins, thermoplasts such as polyamides, elastomers such as Buna or rubber, or polyimides. Other fillers such as silicon carbide or aluminium oxide may be present.
Patent GB-1071526-A (GB)
Title: Multi-frequency signalling systems
IPC: H04Q1/453
Filed: 1964-09-04
Abstract: 1,071,526. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Sept. 4, 1964 [Sept. 9, 1963], No. 36335/64. Heading H4K. In an arrangement for multi-frequency signalling between originating and terminating registers, the receiving part of each register includes a number of receivers V1 . . . V5, Fig. 2, tuned to individual frequencies together with a broad-band receiver SC responsive to all those frequencies, and a code-checking device which when set by a valid signal is maintained under the control of the broad-band receiver, the transmission path being such that this receiver remains operated during a momentary interruption of the line under the control of a detector G2. The sending and receiving parts EC2, RC2 of each register are coupled to the transmission path through a 'hybrid network HN2 which includes two windings L1, L2 and a capacitor CL2 in series. Moreover, direct current flows through each wire a, b of the transmission path through resistors R11, R21, R12, R22, Fig. 7. The broad-band receiver SC comprises a level detector LD, Fig. 7, including a transistor T1, a filler FK and a D.C. transistor amplifier DCA controlling a relay Sur. The transistor T1 is normally blocked and is operated when the level of the received signal is sufficient. Similar level detectors are included in the circuits of the individual frequency receivers V1 ... V5. The interruption detector G2 comprises a normally conducting transistor T2 and normally blocked diodes W2, W3. If the line a, b is interrupted, voltage peaks are generated on account of the inductance of the line, and these are capable of operating the broad-band receiver SC and thus relay Sur. In addition, capacitor CL2, Fig. 2, becomes charged and transistor T2 is blocked, thus enabling one or other of diodes W2, W3 to conduct and apply positive potential over wire g3 to maintain transistor T1 conductive for a period after the voltage peaks have ceased. The switching circuits for a 2-out-of-5 code are described with reference, Fig. 6 (not shown). A code checking circuit operates when a valid signal (2, and only 2, frequencies) is received and energizes a checking relay which locks under the sole control of relay Sur to maintain the registration independently of the individual frequency receivers.
Patent GB-1349696-A (GB)
IPC: H05K3/38
Filed: 1972-08-03
Abstract: 1349696 Electro-depositing copper layers on copper foil YATES INDUSTRIES Inc 3 Aug 1972 [3 Aug 1971 5 Jan 1972] 36345/72 Heading C7B  A Cu foil, for bonding to a PTFE- or C 2 ClF 3  polymer - impregnated fibreglass or polyimide substrate to produce a printed circuit laminate, comprises, as successive layers on at least one surface, a nodular powdery Cu electro-deposit e.g. 3-5g/m<SP>2</SP> thick, at least one overlying non- nodular locking Cu electro-deposit e.g. 3-7g/m<SP>2</SP> thick conforming to the configuration of the first to provide a matt surface but reduce powder transfer, and topmost layer e.g. 0À3-3g/m<SP>2</SP> thick of metal other than Cu, such as Zn, brass, Ni, Co, Cr, Cd, Sn or bronze. Prior to applying the topmost layer, preferably Zn by electro- or  vapour deposition, the matt surface may be washed e.g. by directing alternating hot and cold water sprays. The foil is preferably passed con-  tinuously through two separate Cu deposition baths in series, the first at 80-110‹ F, containing 20- 30 g/l Cu using 7-8 volts, the second at 140-  160‹F containing 50-100 g/l Cu using 5-7 volts; the acid concentration of both is 50-100 g/l H 2 SO 4 , and the anodes are of Pb. For electrodepositing a Zn topmost layer, the bath may  contain 5-400 g/l ZnSO 4 . ZH 2 O and 0-250 g/l (NH 4 ) 2  SO 4  at pH of 1À5-6 with 92% Pb-8% Sb or Zn anode; alternatively a zinc fluoborate or zincate bath may be used. A brass topmost layer may be formed by electro-deposition from a bath containing Cu 2  (CN) 2 , Zn (CN) 2 , NaCN or KCN with or without Na 2 CO 3  or K 2 CO 3 , NaOH or (NH 4 ) 2  SO 4  at pH 10-13; or by heating a Zn coated foil e.g. at 250-400‹F for ¢-10 hours wound an a steel core in an oven containing argon to convert the Zn at least partially to brass by alloying with the underlying Cu.
Patent GB-1291528-A (GB)
Title: Valve timing system in an automotive internal combustion engine
IPC: F02F7/00
Filed: 1970-07-28
Abstract: 1291528 Valve gear; regulating NISSAN MOTOR CO Ltd 28 July 1970 [30 July 1969 8 Sept 1969] 36440/70 Heading F1B A motor vehicle I.C. engine has a cam-shaft 22, Fig. 1, which is axially adjustable by hydraulic piston-and-cylinder arrangement 38, 34, to cause rocker arm 14 of engine exhaust valve 12 to be selectively actuated by a cam 30 or a cam 32. During low-speed, low-load engine operation, a manifold-vacuum-operated switch (68), Fig.3 (not shown) and a series-connected engine-speedresponsive switch (76) are both closed, so that a solenoid-actuated valve 58 is energized and assumes the position shown. Thus, pressurized fluid delivered through passage 46 is drained through open passage 48 thereby causing the camshaft 22 to be held by spring 44 in the position shown in which the rocker arm 14 is actuated by cam 30 to open the exhaust valve 50 degrees after B.D.C. and close it at T.D.C. During high-speed and/or high-load engine operation, the solenoid is de-energized so that the valve 58 closes, whereby the pressurized fluid forces piston 38 and cam-shaft 22 to the left to cause the cam 32 to become effective and open the exhaust valve 50 degrees before B.D.C. and close it 10 degrees after T.D.C. Similarly, the cam-shaft may have a pair of cams for engine inlet valve control, whereby the inlet valve is opened 10 degrees before T.D.C. and closed at 50 degrees after B.D.C.. during high engine speed and/or load, and is opened at T.D.C. and closed slightly before 50 degrees after B.D.C. during low engine speed and load.
Patent GB-1177907-A (GB)
Title: High Voltage Electric Grounding Switch
IPC: H01H31/00
Filed: 1968-07-31
Abstract: 1,177,907. Air-break switches. WESTINGHOUSE ELECTRIC CORP. 31 July, 1968 [9 Oct., 1967], No. 36519/68. Heading H1N. The earthing switch of Specification 1,177,906' is provided with a fixed contact assembly in which the fixed contact 150 is connected to and supported by corona shielding members 162, 164 which are bolted to a terminal strap 350 extending from the fixed contact of the associated isolating switch (not shown). Should the supply be restored when the earthing switch blade is closed, the currents I ¢ in the loops formed by the shielding members 162, 164 and the blade provide magnetic fluxes which tend to maintain the earthing switch contacts closed. A horizontal guide member 152 and a vertical guide member 153 guide the pivoted contact-making portion of the earthing switch blade into alignment with the fixed contact 150 which has a plurality of pairs of opposed contact fingers.
Patent GB-817148-A (GB)
Title: Process for the production of oxygenated compounds
Filed: 1957-11-25
Abstract: Oxygenated organic compounds are produced by a process comprising reacting an olefinic compound with carbon monoxide and hydrogen in the presence of a cobalt catalyst at elevated temperatures and superatmospheric pressures, the cobalt catalyst being injected into the reaction zone in the form of a methanol, ethanol or propanol solution of an oil-insoluble cobalt salt of formic, acetic or propionic acid.  Suitable olefinic compounds for use in the process include monoolefins, diolefins, arylsubstituted olefines and cyclo-olefines.  The preferred molar ratio of hydrogen to carbon monoxide is between 1 and 3 and the preferred ratio of synthesis gas to olefin is at least one. Preferably the process is carried out at a temperature between 100 DEG  and 500 DEG  C. and a pressure between 2,000 and 10,000 p.s.i.g. The preferred method of refining the crude hydroformylation product is by first decobalting the product with aqueous sulphuric acid, separating the organic phase, adding water and distilling to obtain an aldehyde-alcohol fraction; the aldehyde may be hydrogenated to alcohols or oxidized to carboxylic acids.  In the examples: (a) nonene is treated with carbon monoxide and hydrogen using cobalt acetate dissolved in methanol as catalyst to give a C10 aldehydealcohol mixture; (b) tetrapropylene is treated with carbon monoxide and hydrogen in the presence of cobalt acetate dissolved in methanol to give a C13 aldehyde-alcohol mixture; and (c) ethylene is treated with carbon monoxide and hydrogen in the presence of cobalt acetate dissolved in methanol to give propionaldehyde.
Patent GB-1285139-A (GB)
Title: Novel pyrimidinylureas and their preparation
IPC: C07D239/545
Filed: 1970-07-29
Abstract: 1285139 2,4 - Diketo - 1,3 - dimethyl - -1,2,3,4- tetrahydropyrimidin-6-yl-ureas BAXTER LABORATORIES Inc 29 July 1970 [13 Aug 1969] 36604/70 Heading C2C Novel 2,4 - diketo - 1,3 - dimethyl - 1,2,3,4- tetrahydropyrimidin-6-yl-ureas of the general formula wherein R is a C 1-4  alkyl, allyl, cyclohexyl or 2. methylphenyl group, are prepared by reaction of 1,3 - dimethyl - 6 - aminouracil with an isocyanate of the general formula RNCO. Pharmaceutical compositions having central nervous system anti-depressant activity comprise, as active ingredient, a 2,4-diketo-1,3- dimethyl - 1,2,3,4 - tetrahydropyrimidin - 6 - ylurea of the first general formula above, together with a diluent or carrier, and may be administered orally, intravenously or intraperitoneally.
Patent GB-917604-A (GB)
Title: Improvements in or relating to electrical generators
IPC: H02K44/08
Filed: 1960-10-27
Abstract: 917,604. Generators operating by electromagnetic interaction with fluids. BROWN, BOVERI & CIE A.G. Oct. 27, 1960 [Oct. 31, 1959], No. 36913/60. Class 35. An electrical generator comprises a channel a, b, d for the flow of a hot gas therethrough, means M 1 , M 2  for the production of a magnetic field H transverse to the direction V of gas flow, and means for adding to the flow, at a point within the magnetic field, material which adds metallic ions to the flow. In the embodiment shown, the material is fused potassium carbonate and the means comprise injection pipes D . . . D2 and a circular header S.
Patent GB-1387074-A (GB)
Title: Loudspeaking telephone sets
IPC: H04M1/60
Filed: 1972-08-08
Abstract: 1387074 Loudspeaking telephones WESTERN ELECTRIC CO Inc 8 Aug 1972 [13 Aug 1971] 36969/72 Heading H4R In a loudspeaking telephone set a comparator 104 compares speech signals from the transmit channel, noise from the transmit channel and speech from the receive channel to control the switching of variolosser circuits TVL and RVL. Speech in the transmit channel is distinguished from noise by arranging that the speech rectifier R T  has a time constant circuit with a 5 m.Sec. charge time and a 120 m.Sec. discharge time while the noise rectifier R N  has a time constant circuit T N  with a 4 to 5 sec. charge time and an 8 m.Sec. discharge time so that the speech rectifier provides an output greater than the noise rectifier when speech is passing through the transmit channel, and the noise rectifier the greater output when noise passes through the transmit channel. The signal in the receive channel is derived by linear addition of the signals at both the input and output of the gain controlled amplifier A R  in the receive channel so that the control signal level varies to some extent with the switching condition. Each of the amplifiers A C  and As on the control signal inputs to the comparator has a circuit RE, Fig. 2 (not shown) connected in its feed back path to provide the amplifier with a compressor characteristic. The switching characteristic is such that on no signal in either path the set is conditioned to the receive condition with rapid switching to the transmit condition on detection of a speech signal on the transmit path, and relatively slow release to the receive condition when the transmit signal ceases and there is no signal on the receive path or a much faster release if there is a signal on the receive path when the transmit signal ceases. Since if the receive amplifier gain is reduced the loop gain can be maintained at a low value with lower attenuations switched in by the variolossers RVL and TVL, the receive amplifier gain is coupled to the switching control system at 107 to reduce the attenuation inserted by the variolossers as the receive gain is reduced. The loudspeaking telephone is connected to the line by an active hybrid circuit Fig. 3B (not shown).
Patent GB-1122026-A (GB)
Title: Flock-coated materials
Inventor: HAUGHTON GEOFFREY JAMES SINCLA
IPC: B44C1/24
Filed: 1964-09-10
Abstract: A patterned flock-coated material is prepared by coating a base material with a curable rubber-based adhesive, depositing flock upon the adhesive to form a pile and passing the resultant flock coated material through the nip between a set of rollers at least one of which is heated and patterned, the flock surface being in contact with a heated and patterned roller.  Suitable adhesives are cross-linkable adhesives such as cross-linkable polyurethane adhesives as well as synthetic and natural rubber adhesives in solution and latex form.  The heated roller may be heated by jets burning town gas positioned close to the working surface.ALSO:A patterned flock-coated material is prepared by coating a base material with a curable rubber-based adhesive, depositing flock upon the adhesive to form a pile and passing the resultant flock coated material through the nip between a set of rollers at least one of which is heated and patterned, the flock surface being in contact with a heated and patterned roller.  Suitable adhesives are cross-linkable adhesives such as cross-linkable polyurethane adhesives as well as synthetic and natural rubber adhesives in solution and latex form.  The heated roller may be heated by jets burning town gas positioned close to the working surface.