baber/WOPTO huggingface dataset:
Patent GB-1077265-A (GB)
Title: Improvements in or relating to semiconductor arrangements
IPC: H01L21/20
Filed: 1964-10-21
Abstract: In a process for the production of a semi-conductor arrangement by deposition from the vapour phase on to a heated carrier from a gas mixture containing a compound or compounds which on contact with said carrier will deposit semi-conductor material thereon, the said carrier is a monocrystalline plate of semi-conductor material the faces of which are (110) and (110) planes of the crystal one of the faces of which is roughened by mechanical treatment so that epitaxial growth takes place substantially exclusively thereon.  The faces of the carrier plate may be natural (110)-planes of cleavage produced by mechanical breaking, one of the mutually opposite planes being roughened, for example, by lapping at a small angle.  One face may be a natural plane of cleavage whilst the other face is manufactured by a mechanical cutting process such as sawing.  The gas mixture may be produced by passing a reaction gas which converts the semi-conductor material to a gaseous substance or substances such as bromine or iodine over solid semi conductor material which is to be deposited in the reaction vessel used for the deposition reaction.  The semi-conductor material is of the same or different conductivity type and/or conductivity as the carrier and may be an AIIIBV compound such as gallium arsenide.  The carrier may be heated to 1000 DEG  C.
Patent GB-1354793-A (GB)
Title: Recovery of cobalt and organic phosphines which do not form  water-soluble salts from distillation residues resulting from the  oxo reaction
IPC: B01J31/24
Filed: 1971-09-15
Abstract: 1354793 Cobalt hydroxide BADISCHE ANILIN- & SODA-FABRIK AG 15 Sept 1971 [16 Sept 1970] 42920/71 Heading C1A [Also in Division C2] Distillation residue from the "oxo" reaction containing cobalt carbonyl complexes modified with organic phosphines (the phosphines not forming water soluble salts) is treated at elevated temperature with an aqueous solution of a non-oxidizing mineral acid in the absence of oxygen and the mixture is separated into an organic phase and an aqueous phase, cobalt in the aqueous phase being extracted by precipitation as hydroxide with alkali, e.g. caustic soda. The non-oxidizing acid, e.g. hydrochloric acid, sulphuric acid or phosphoric acid may be used in a quantity sufficient for the formation of cobalt and phosphonium salts. Organic phosphines are isolated from the organic phase. Cobalt in the aqueous phase can alternatively be converted to a soluble salt of a fatty acid having 6 to 18 carbon atoms.
Patent GB-1218032-A (GB)
Title: Electronic control circuits for electromagnetic devices
Inventor: DERC ROMAN
IPC: H02P29/00
Filed: 1967-09-21
Abstract: 1,218,032. Controlling electromagnetic clutches and brakes. INTERNATIONAL COMPUTERS Ltd. 17 Sept., 1968 [21 Sept., 1967], No. 42943/67. Headings F2E and F2L. Also in Division H3] An electromagnetic clutch or brake has means for providing an initial high current to a coil, subsequently applying a reverse current through the coil to rapidly reduce energization to a level just sufficient to maintain the operation of the clutch or brake, and finally applying a reverse current through the coil to rapidly de-energize it when desired. A clutch or brake coil 24 is energized on applying a pulse to a start circuit comprising transistors 12, 13 connected in parallel and controlled by transistors 10, 11, a negative start pulse being applied to a terminal 14. The start pulse cuts off transistor 10 and allows transistor 11 to conduct and transistors 12, 13 to conduct. Simultaneously a hold pulse is applied to a terminal 35 to cut off a transistor 36 and allow a transistor 37 to conduct. The transistors 12, 13 and 37 combine to provide a large current flow through the coil 24. Capacitor 29 is charged by the flow through transistors 12, 13, and a capacitor 45 is charged by the flow through the transistor 37. When the clutch or brake is engaged, the start pulse is removed to allow transistor 10 to conduct and cut off the transistors 11-13 to cause the current through coil 24 to fall to a holding value. On cut off of the transistors 12, 13, transistors 31, 32, which are connected as a Darlington pair, conduct due to a diode 27 becoming non-conductive so that the lower plate of capacitor 29 is clamped at the H.T. line voltage. Capacitor 29 accordingly discharges through the coil 24 to rapidly reduce the flux to the holding level, which is just sufficient to maintain the clutch or brake engaged. To de-energize the clutch or brake the hold pulse is removed to allow transistor 36 to conduct and switch off transistor 37. This causes transistors 48, 49 to conduct and capacitor 45 discharges, providing a reverse current through the coil 24 to rapidly decrease the flux to zero and disengage the clutch or brake. The arrangement is particularly adapted for use when it is required to maintain operation of the clutch or brake for long periods, as it is economical in its power consumption.
Patent GB-1501958-A (GB)
Title: Alpha-(ureido-or thioureido-)benzyl or cyclohexadienyl methyl penicillins and processes for their preparation
IPC: C07D499/64
Filed: 1975-10-22
Abstract: 1501958 Compositions containing penicillins MERCK PATENT GmbH 22 Oct 1975 [25 Oct 1974 9 Aug 1975] 43407/75 Heading A5B [Also in Division C2] Compounds I in which X is O or S, Y is H or alkyl, Z is phenyl, p-hydroxyphenyl or 1, 4-cyclohexadienyl and R<SP>2</SP> and R<SP>3</SP> are each H or together form -CH=CH-CH=CH- (wherein one CH group may be replaced by N and/or one or two H atoms may be replaced by substituents selected from alkyl, alkoxy, dialkylamino or halogen or if adjacent they may be replaced by -CH=CH-CH=CH- wherein one CH group may be replaced by N) and their esters and salts have anti-bacterial activity and form with a carrier a pharmaceutical composition which may be administered orally, parenterally or topically. The compositions may also contain other antibiotics (phenoxymethyl penicillin, cloxacillin, gentamycin, tobramycin, amikacin), anti phlogistics antimycotics and/or vitamins. An ampoule contains Compound I (Z=Ph; X=O; Y=R<SP>2</SP>=R<SP>3</SP>=H) as the sodium salt and cloxacillin as the sodium salt monohydrate.
Patent GB-958845-A (GB)
Title: Improvements relating to sound recording or reproducing apparatus
Inventor: ALDRIDGE PETER JOHN
IPC: G11B15/44
Filed: 1961-12-05
Abstract: 958,845. Multispeed tape drives. MAGNAVOX ELECTRONICS CO. Ltd. Nov. 30,1962 [Dec. 5, 1961], No. 43522/61. Heading G5R. The capstan/flywheel assembly of a tape recorder has a two-step capstan portion whose diameters 14, 15 may be selectively offered to drive the tape 9a in conjunction with a pinch roller 13 to drive the tape at two speeds. A belt 8 drives the reel-carriers and the flywheel 17 at a constant speed and a lever/bell-crank means 30, 28 acting on a thrust ball 19 raises or lowers the capstan assembly. The pinch-roller is arranged as in Specification 958,846 to snap into or out of engagement with the capstan by virtue of an overcentre spring 39 for speed-changing or to facilitate tape-loading.
Patent GB-1090362-A (GB)
Title: Improvements in or relating to security systems
Inventor: O'GORMAN WILLIAM FRANCIS
IPC: G07C9/00
Filed: 1964-10-26
Abstract: 1,090,362. Checking entry of individuals. SECURITY SYSTEMS Inc. Oct. 26, 1964, No. 43581/64. Heading G4T. [Also in Division E2] In a system for controlling entry to an enclosure a ticket with a plurality of short magnetizable strips thereon is validated by apparatus including electromagnets disposed adjacent the strips and magnetized in a direction according to a code set on a plurality of switches. In the preferred embodiment oppositely polarized electromagnets are disposed at opposite ends of the strips and on opposite sides of the ticket. At an entrance to the enclosure the validity of the ticket is checked by an apparatus in which a plurality of magnets pivoted at right angles to the magnetized strips are rotated, thereby to close one of two contacts dependent on the direction of magnetization, and a circuit is completed providing the code corresponds to the one set on a plurality of switches. On withdrawal of the ticket from the detector a pair of electromagnets are energized to invalidate the ticket. In both pieces of apparatus a switch at the side of the insertion slot is operated by a bevelled lower corner indicating correct orientation of the ticket and a switch at the bottom of the slot is operated when the ticket is fully inserted. In the validator a red lamp is lit until the card is fully in. serted and closure of both the side and lower switches lights a green lamp. In the detector insertion of a correctly dimensioned ticket closes the side and bottom switches to energize a first relay, and recognition of the correct code completes a circuit to energize a second relay and light a green light when the ticket is withdrawn. Non-energization of the second relay causes illumination of a red light and sounding of a bell on withdrawal of the ticket. Simultaneously a third relay is energized which supplies current to a warning light in a control unit which remains lit until a control button is depressed. The system is used in conjunction with a turnstile.
Patent GB-1328116-A (GB)
Title: Fibre-reinforced flexible plastic pipe and its method of  production
IPC: B29C70/14
Filed: 1970-09-11
Abstract: 1328116 Glass fibre reinforced pipes BASLER STUCKFARBEREI AG 11 Sept 1970 [12 Sept 1969 28 Nov 1969] 43672/70 Heading B5A [Also in Division F2] A flexible pipe comprises a plurality of glass fibre reinforced plastics layers separated by layers of plastics bonded granulated filler material, at least one of the glass fibre reinforced layers incorporating fibre fragment of length greater than 40 mm. and arranged circumferentially of the pipe. The pipe is, according to one aspect of the invention, made be feeding material into a mould rotating about a horizontal axis, the fibre material being fed as continuous fibre and being severed into fragments after the leading ends of the fibres have been contacted with the layer being formed in the mould. Air jets may be used to assist emplacement of the reinforcing fibres, and the severing device may be arranged to produce fibres of more than one length. The pipe making materials may be delivered to the mould by a member which reciprocates axially of the mould. Reference has been directed by the Comptroller to Specification 1,167,137.
Patent GB-1462628-A (GB)
Title: Ethylene/vinyl acetate/isobutylene terpolymers
IPC: C08F210/02
Filed: 1973-12-18
Abstract: 1462628 Ethylene-vinyl acetate-isobutylene terpolymer NATIONAL DISTILLERS & CHEMICAL CORP 18 Dec 1973 43802/73 Heading C3P [Also in Division C5] A terpolymer of ethylene-vinyl acetate-isobutylene containing from 18 to 28% by weight vinyl acetate and from 0À5 to 3% by weight of isobutylene and having a melt index of at least 150 as determined by ASTM D-1238, the percentages being based on total terpolymer weight, may be prepared by copolymerizing the monomers in the presence of a free-radical catalyst at elevated temperature and pressure. The terpolymers may be dispersed in wax to give a hot melt coating composition.
Patent GB-1086087-A (GB)
Title: Improvements in or relating to sheets for use in walls and walls including same
IPC: E04F13/18
Filed: 1964-10-27
Abstract: 1,086,087. Laminates. C. VAN DER LELY N.V. Oct. 27, 1964 [Nov. 4, 1963], No. 43856/64. Heading B5N. [Also in Division E1] A building cladding panel comprises a pane of wire reinforced glass with an outer layer of thermo-setting plastics material stuck thereto. The plastics layer may be coloured or patterned.
Patent GB-1272776-A (GB)
Title: Improvements in and relating to rotary valves
Inventor: MANTON DOUGLAS NORMAN
IPC: F16K5/04
Filed: 1968-09-17
Abstract: 1,272,776. Valves. D. N. MANTON. 17 Sept., 1969 [17 Sept., 1968], No. 44036/68. Addition to 1,022,011. Heading F2V. An improvement in or modification to the valve claimed in claim 1 of the parent Specification comprises a valve member 10 of external regular non-spherical configuration, e.g. barrelshaped, as shown, cylindrical, frusto-conical, or double frusto-conical, with the larger or smaller ends in conjunction. The seals of the valve can be formed of P.T.F.E. or rubber.
Patent GB-993715-A (GB)
Title: Improvements in or relating to tilt-sensitive devices
Inventor: SQUIRE ALAN MAURICE
IPC: G01C9/18
Filed: 1961-12-11
Abstract: 993, 715. Measuring electrically. ENGLISH ELECTRIC CO. Ltd. March 8, 1963 [Dec. 11, 1961], No. 44208/61. Heading G1N. A transducer for measuring tilt comprises a sealed, curved, glass tube 111 (Fig. 2) filled with a conducting electrolyte 112 and containing a bubble 113 of e.g. air, having a central electrode 115 and two end electrodes 116, 117, whereby when the transducer is tilted the resistance between electrodes 115, 116 and between 115, 117 differs by an amount which is measured in a bridge circuit, and is indicative of the magnitude and direction of the tilt. The glass tube may be externally cylindrical and internally barrel-shaped (Fig. 4): the electrolyte is preferably a solution of lithium chloride in alcohol: the bubble may be a liquid or gas, heavier or lighter than the electrolyte: the electrodes are preferably platinum, treated to provide a sponge surface, and mounted on an insulating bridge member 314, or the end electrodes may be formed on a ring 316 on the inner surface of the glass tube 311. Specification 937,162 is referred to.
Patent GB-1350193-A (GB)
Title: Sintered metal electrodes
IPC: B23K35/30
Filed: 1972-09-25
Abstract: 1350193 Welding by fusion DEUTSCHE EDELSTAHLWERKE GmbH 25 Sept 1972 [6 Oct 1971] 44234/72 Heading B3R [Also in Division C7]  A sintered welding electrode is formed of titanium carbide with or without other specified carbides and a matrix of ferritic-martensitic, chromium-containing steel (see Division C7). The electrode may be used for welding workpieces of heat-treatable hard alloys or for hardfacing metal workpieces by A.C. or D.C. welding or by the argon shielded arc process. After the welding or facing operation the material can be heat treated, e.g. for 1 hour at 1000‹ C. and 6 hours at 720‹ C. to reduce the hardness of the weld material to allow it to be machined. After machining the hardness can be restored by quenching from the austenitizing temperature, e.g. 1050‹ C. in a bath at 510‹ C.
Patent GB-1311444-A (GB)
Title: Cyclopentyl urea and process for its production
IPC: A61K31/18
Filed: 1971-09-22
Abstract: 1311444 Sulphonyl - urea derivative T URIACH & CIA SA 22 Sept 1971 [23 Sept 1970] 44255/71 Heading C2C Novel compound (I) (including salts thereof) is made by interacting the corresponding benzenesulphonamide, ethyl chloroformate and cyclopentylamine. Pharmaceutical preparations having hypoglycemic action contain (I) as active ingredient. Administration may be orally.
Patent GB-1286074-A (GB)
Title: Improvements in or relating to building elements
IPC: E04C2/38
Filed: 1968-09-19
Abstract: 1286074 Building element A A WELLS 11 Sept 1969 [19 Sept 1968] 44674/68 Heading E1W A plank-like building element for use in building structures as a load bearing or cladding member comprises a seamless outer shell 9 of fibre-filled cementitious material, the shell being formed on and containing insulating material 8 and having two opposed substantially planar or only slightly curved principal surfaces connected together along the edges of the plank by portions formed one with a groove 11 and the other with a tongue, or a groove 11 to receive a separate tongue (12, Fig. 3, not shown) for the purpose of interlocking connection between juxtaposed similar planks. The groove may be of undercut, keyhole shape to receive a separate tongue of complementary cross section. The fibre filling material may be formed of E borosilate glass, zirconium glass or chrysotile asbestos. The cementitious material may be a portland cement, a gypsum hemi-hydrate or a high alumina cement. The insulating material may be expanded polystyrene, foamed phenolformaldehyde or foamed rigid polyurethane. One or both principal surfaces may be covered with veneer or laminate. An exposed surface may be provided with a reflective metallised coating such as aluminium foil. The elements may be formed with bends or twists according to their intended use in a building.
Patent GB-930945-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B29D5/02
Filed: 1961-12-14
Abstract: 930,945. Sliding clasp fasteners. WALDES KOHINOOR Inc. Dec. 14, 1961 [Dec. 30, 1960], No. 44741/61. Class 44. A method of manufacturing sliding clasp fasteners comprises removing fastener elements from a string of fastener elements of synthetic plastic material which constitutes projections from an elongated rib interconnecting the fastener elements, the elements being removed from the rib at such locations along the string and in such number as to form the string into a series of interconnected portions each portion having fastener elements extending its length and being connected to the rib portions which remain. As shown, a string of fastener elements 10 is fed intermittently through a punching machine P (see Fig. 4), comprising a punch 15 reciprocable between guides 16, 17 and co-operating with a spring block 18. The punch 15 first compresses the elements 10 and then severs them against the edge of a recess 22, in which the rib 11 is accommodated, during the downward motion of the punch. Elements 10 are removed to leave an element free portion of the rib 11 connecting portions S1, S 2 , as in Fig. 1. The string is then sewn to the edge of a tape T to form a stringer, which may be cut into lengths as required. In a modification, two interlocked strips of material (see Fig. 2 not shown) are passed through a punching mechanism, Figs. 7-9 (not shown), the method of operation being as above.
Patent GB-1137345-A (GB)
Title: Process for preparing nucleosides
IPC: C07H1/00
Filed: 1966-10-07
Abstract: 1,137,345. Nucleosides. ASAHI KASEI KOGYO K.K. 7 Oct., 1966 [9 Oct., 1965], No. 44948/66. Heading C2C. Nucleosides are prepared by adjusting the pH of an aqueous solution of a 3<SP>1</SP>-nucleotide or partial hydrolysate of ribonucleic acid to a pH of 5À0 and 8À5 by means of NH 4 OH, NaOH, KOH, or HCl or H 2 SO 4 , and heating the resulting aqueous solution at a temperature of from 100-150‹ C. The partial hydrolysate of ribonucleic acid may be prepared by adjusting the pH of a suspension of biological material having a high ribonucleic acid content to 10-13, or the pH of a solution or suspension of ribonucleic acid to 8-10, and heating the suspension at a temperature of from 60-150‹ C. with the addition if required of NH 4 OH, NaOH, KOH, HCl or H 2 SO 4  until the pH reaches a value between 5À0 and 8À5. Examples detail the hydrolysis of the monosodium salt of ribonucleic acid or yeast to give a mixture of nucleosides from which adenosine, guanosine, uridine, and cytidine are isolated by chromatographic methods and by the formation of adenosine cuprous salt.
Patent GB-1354943-A (GB)
Title: Process for preparing licorice extract-like material for tobacco flavouring
IPC: A24B3/12
Filed: 1971-09-27
Abstract: 1354943 Flavourings for tobacco JAPAN MONOPOLY CORP 27 Sept 1971 [16 Nov 1970] 44949/71 Headings A2B and A2C [Also in Division C6] A process for preparing liquorice extract-like material suitable for flavouring tobacco (cigarettes) involves aerobically culturing liquorice cells in a liquid nutrient medium specified), heating the cells in a liquid phase in order to extract the liquorice-flavouring components into the liquid phase, cooling the resulting solution, removing any solid residue and concentrating the resulting solid-free solution to yield the liquorice-like extract. The cultured broth containing the liquorice cells is boiled under reflux to extract the liquorice flavouring components of the cells into the liquid phase and the solid-free solution is concentrated under reduced pressure to 1/40-1/50 of its original volume. In the procedure of the Examples, fragments of the following varieties of liquorice plants were employed; root of Glycyrrhiza glabra LinnÚ varglandulifera Rgl. et Herd, stem of G. uralensis D.C. and leaf of G. echinata L.
Patent GB-1360265-A (GB)
Title: Gripping device for a nuclear reactor charging machine
IPC: G21C19/105
Filed: 1971-09-28
Abstract: 1360265 Grippers for lifting nuclear fuel elements BBC BROWN BOVERI & CO Ltd 28 Sept 1971 [30 Sept 1970] 45166/71 Heading B8H [Also in Division E2] A gripping device of a charging machine for extracting the fuel element 1 from a gas cooled reactor (not shown) comprises a tube 4 which is mounted on a swivel arm 6 and which is inserted in use into a hole 2 in the fuel element 1, a plunger 14 being movable downwardly or upwardly in the tube 4 under the action of a positive or negative pressure applied to a pressure space 26 by means of a pressure tube 31, upward movement of the plunger 14 causing a latch 11 to swing out and engage a recess 40 in the fuel element 1 as shown in Fig. 1, downward movement of the plunger resulting in the retraction of the latch 11. A lever arm 11<SP>1</SP> of the latch 11 has teeth 44b which engage with teeth 44a on a valve housing 15 mounted at the base of the plunger 14 such that the movement of the plunger 14 is transmitted to the latch 11 which has teeth 44d<SP>1</SP> which engage with teeth 44c formed in the lower wall of an opening 13 formed in an internal sleeve 9 of the tube 4, the latch 11 having further teeth 44e formed thereon which engage with teeth 44f provided on a rocker arm 12 whose top surface has teeth 43d<SP>11</SP> which engage with teeth 44c formed in the upper wall of the opening 13, the engagement of the rocker and latch members 12, 11 with each other and the wall of the carrier tube serving to locate the latch member 11 during its movement. Instead of the teeth mentioned above flexible straps (45), Fig. 4 (not shown), may be provided. Ball valves 16, 22 which are located in the valve cap 15 and end plate 24 respectively close when the space 26 has been pressurized to lower the plunger 14 to retract the latch 11, thus causing the cessation of the gas flow and the attainment of maximum pressure in the space 26 which is used as a signal that the latch 11 is retracted. The plunger 14 is attached to the sleeve 9 by means of a bellows 27.
Patent GB-1526097-A (GB)
Title: Subscriber loop extender
IPC: H04M19/00
Filed: 1975-10-31
Abstract: 1526097 Line voltage supply INTERNATIONAL STANDARD ELECTRIC CORP 31 Oct 1975 [31 Oct 1974] 45166/75 Heading H4K A line voltage boosting circuit for insertion in a line from a central office to a substation includes at least one negative and one positive voltage source 2-5 each derived from the exchange battery via a D.C./D.C. voltage converter 1. A polarity detecting arrangement 6, 7 is responsive to the polarity of the line wires and controls a switching arrangement 8-11 which in turn renders the voltage sources operative in such a way that they boost the exchange battery. The circuit shown employs two voltage sources 2, 5 ( + ve and - ve) for one direction of line current and two others 3, 4 for the other direction, change in current direction being detected by the sensors 6, 7. Another circuit (Fig. 3, not shown) employs one source for each line current direction.