baber/WOPTO huggingface dataset:
Patent GB-1007329-A (GB)
Title: Improvements in or relating to devices for zone-melting
IPC: C30B13/22
Filed: 1962-12-12
Abstract: 1,007,329. Zone-melting. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 12, 1962 [Dec. 15, 1961], No. 46939/62. Heading B1S. A rod 3 of material in a vessel 2 is zonemelted in a tube 4 by passage of the tube through a graphite heating member which comprises two rings 5 closely surrounding tube 4 and connected by a thin ring 6 spaced from tube 4, the graphite member being contained in a stationary tube 8 which has an inert gas inlet 16 and is surrounded by two ovens 11 and 12 and an induction coil 7 for heating the centre of ring 6. Tube 4 has an inert gas outlet 17 and a sleeve 13 which is displaced together with tube 4 between bearing and driving rollers 14 and 15 respectively. Tube 4 passes into tube 8 through a sealing ring 10 of P.T.F.E. Vessel 2 may be contained in a sealed ampoule 1. Gallium arsenide may be zone-melted in the presence of arsenic.
Patent GB-1392147-A (GB)
Title: Roller assemblies
IPC: B62D55/15
Filed: 1973-10-08
Abstract: 1392147 Endless track roller bearings CATERPILLAR TRACTOR CO 8 Oct 1973 [12 Oct 1972] 46947/73 Heading B7H [Also in Division F2] An endless track roller 20 is mounted by bearings 21, 22 on a shaft 11, the bearings being abutted at their outboard faces by abutment means 15, 12 and 23 whose separation may be altered by removable shims 19 to compensate bearing wear. The shaft is mounted in support members 12, 13 and is provided with releasable end plates 15, 16 which abut shoulders 24 in the support members. Support member 12 has a collar 27 which abuts the inner race of bearing 21, whilst an annular collar 23 on shaft 11 abuts the inner race of bearing 22. Removable shims 19 between the end plate 15 and shaft allow for axial movement of bearing 21 and roller 20 relative to the bearing 22. In a further embodiment (Fig. 3, not shown) a separate annular collar is positioned between the collar of support member 12 and the bearing 21, and a separate collar, not integral with the shaft 11, is provided for abutting the bearing 22.
Patent GB-1327219-A (GB)
Title: Digital to analogue converter
IPC: G01B7/00
Filed: 1970-10-05
Abstract: 1327219 Digital to analogue converters INDUCTOSYN Ltd 5 Oct 1970 [6 Oct 1969] 47195/70 Heading G4H A digital-to-analogue converter comprises a first counter 11 and a second counter 12 stepped by pulses from a source 21, apparatus 7 for determining the number of pulses applied to each counter to generate a difference in the counts of the two counters which is proportional to a digital input supplied to the counters and a logic circuit 17 for combining the signals from the first and second counters to generate an analogue signal. The converter is used in a system for measuring the position of a movable member with respect to a fixed member, the movable member generating an error signal when it is remote from its null position which error signal controls the frequency of an oscillator in a control 4 to provide pulses at a frequency proportional to the error signal. The error signal pulses on line 5 control logic circuits in the apparatus 7 to cause a difference in the counts of the clock pulses fed from the source 21 to the counters 11, 12. The direction of the count difference, i.e. whether the change in count difference tends to cause the counter 11 to have a greater count than the counter 12 or vice-versa, is determined by signals on the line 6, these signals being derived from an error signal the polarity of which depends on the direction of the displacement of the movable member with respect to the fixed member. The logic circuit 17 combines the counter outputs to form analogue signals the pulse widths of which are proportional to the sine and cosine of a function of the count difference.
Patent GB-1002759-A (GB)
Title: Improvements in or relating to non-woven fabrics
IPC: D04H1/70
Filed: 1962-12-18
Abstract: 1,002,759. Non-woven fibrous webs. CHICOPEE MANUFACTURING CORPORATION. Dec. 18,1962 [Dec. 18.1961]. No. 47725/62. Heading D1R. [Also in Division B5] A non-woven fabric comprises a layer 32 of closely-associated fibres whose surface presents a pattern of fabric areas each having a plurality of regions in which the fibre concentration or layer thickness varies and a thinner layer 30 of longer fibres conforming to the surface contour of the first layer 32 and interconnecting the different fabric areas to bind the shorter fibres into an integral fabric. In one embodiment, Figs. 3, 6 and 8, the layer 32 of paper-making length fibres, i.e. up to 1/ 4  inch, e.g. cotton linters, bleached sulphite pulp or fibres from any other wood pulp source, is sandwiched between two layers 30, 31 of textile length fibres, i.e. <SP>1</SP>/ 4  to 2 inches, e.g. cotton, flax, wood, silk, wool, jute, asbestos, ramie, rag, abaca, glass, viscose or cuprammonium rayon, ethyl cellulose, cellulose acetate, polyamides, such as nylon, polyesters, acrylics, polyvinylidene chloride, polyvinyt chloride or polyurethane. The fibrous layers or webs 30, 31, 32 may be formed by carding, garnetting, air laying or paper making techniques. The three layer assembly is passed through apparatus, Fig. 1 (not shown), as described in Specification 836,397, to rearrange the fibres by a fluid, e.g. water, steam or air, to form the fabric shown in Figs. 6 and 8. The long fibres in the layer 30 are washed down into apertures 34 in the layer 32 corresponding to apertures in the forming plate or drum and groups 38a, 38b, 39a, 39b of these fibres extend from one aperture 34 to the next. In an alternative embodiment, Figs. 9 and 10, the shorter-fibre web 43 is sandwiched between longer-fibre webs 41-42 and the fibres thereof are rearranged as described in Specification 992,421 to form tubercles 44 interconnected by portions 45 presenting a pattern of holes 46. After formation of the fabric, the web may be printed with a binder, e.g. an acrylic emulsion, using an intaglio printing cylinder. Examples of web density, fibre length, fibre denier and amount of binder added are given in the Specification.
Patent GB-1124300-A (GB)
Title: Improvements in or relating to temperature-regulating ventilation apparatus
Inventor: FFISKE GERALD DANDRIDGE
IPC: F24F11/76
Filed: 1964-11-25
Abstract: 1,124,300. Ventilation. STOCKBUILDINGS Ltd. 19 Nov., 1964 [25 Nov., 1964], No. 47924/64. Heading F4V. [Also in Divisions F] and G3] The air temperature in a building is maintained at a predetermined value by varying the speed of an electric extractor fan 4 controlling air intake into the building. A thermosensitive device 10 responsive to air temperature controls a three-position switch 8 to respectively drive a servomotor 7 in one or other of two directions and then de-energize it when the temperature has stabilized, the motor 7 controlling a regulating device 6 (rheostat or autotransformer) in the power supply to the motor 4. The switch 8 also controls another servomotor 16 in a similar manner to move a shutter 14 one way or another across a louvred air inlet vent 12 and so maintain the inlet air velocity reasonably constant with the changes in fan speed. Device 10 may be a pressuresensitive mercury filled element, and the motor 7 is de-energized by an overtravel switch if switch 8 has not operated when the limit of adjustment has been reached. A building may be ventilated by various arrangements of fans and inlet vents controlled as described above, e.g. fans and vents on opposite walls (Fig. 2, not shown), fans on walls and vents on roof ridge or vice versa. With vents in the roof ridge, the shutters may be replaced by angularly adjustable flaps, Fig. 3 (not shown), and additional or alternative air velocity control may be provided at the fan cowling. The positions of the various members of the control system are discussed together with various ways of controlling the groups of fans and shutters.
Patent GB-1249872-A (GB)
Title: Improvements in or relating to gas-fired apparatus
IPC: F23N1/08
Filed: 1968-10-10
Abstract: 1,249,872. Controlling burners. JUNKERS & CO. G.m.b.H. 10 Oct., 1968 [14 Oct., 1967], No. 47985/68. Addition to 1,187,602. Heading F4T. In a modification of a gas control device described in the parent Specification, push-rod 751 is connected to one end of a mechanical power transmitting device whose other end is connected to an actuating element. As shown, this transmission device is a Bowden cable 104, and the actuating element 106 is the electric motor-operated three-way valve of a central heating system, which valve directs the flow of circulating water to either the domestic water heat exchanger or the heating system (Fig. 1, not shown), the Bowden cable being secured to a holder 109 attached to the motor shaft 105. When the water flow is switched to the heat exchanger, clockwise rotation, as viewed in the Figure, of holder 109 releases the tension in the Bowden cable allowing spring 101 to urge push-rod 751 upwards, thereby opening the valve of the throttling element. On switching the water flow to the heating system, holder 109 is rotated in an anticlockwise direction so that the Bowden cable pulls down the push-rod thereby closing the valve of the throttling element. In a gas oven, the actuating element may comprise a push-button.
Patent GB-964464-A (GB)
Title: Writing instrument
IPC: B43K7/02
Filed: 1962-12-21
Abstract: 964,464. Reservoir pens. PARKER PEN CO. Dec. 21, 1962 [Dec. 21, 1961], No. 48379/62. Heading B6P.  A ball-point pen has a barrel formed of top and bottom parts 12, 12a, attached by screw threads and a writing cartridge 13 including a writing tip 14. The writing tip 14 is slidably mounted within the part 12a for projection by actuation of a pocket clip 17, while the cartridge is detachably mounted in the part 12. The ball-point 15 is supplied with ink through a conduit 52 extending through a feed tube 55, the cartridge 13 and tip 14 being held together by internal flanges 60 and 61, Fig. 3 (not shown). A new cartridge is protected by a tightly fitted cover 70 which when removed draws ink along the tube 55, Fig. 2, by suction.
Patent GB-1400450-A (GB)
Title: Selfwatering cultivation bed
IPC: A01G27/04
Filed: 1971-10-19
Abstract: 1400450 Watering plants P E LAIDMAN 5 Oct 1972 [19 Oct 1971] 48628/71 Heading A1E In a plant watering arrangement a pot is supported above water in a vessel 17 by means of a shaped aperture in a slab 14 of expanded polystyrene, and a sheet 18 of woven glass fibre or other porous material dips into the water and is led over the top of the slab 14 and is either, in the case of a plastic pot, inserted between the pot 13 and rooting medium such as peat compost 12 therein, or, in the case of a clay pot, wrapped around the outer surface of the pot. Water is thus supplied to the pot by capillary action, and evaporation increases the humidity in the vicinity of the plant. A filler tube 20 has a stopper 21 and a level indicator comprising a marker 22 connected to a float 23. A layer 19 of stone chips may be laid over the upper surface of the rooting medium and adjacent areas. A plurality of apertures may be provided in the slab for supporting a number of pots.
Patent GB-1399208-A (GB)
Title: Phase angle measurement
IPC: G01D5/36
Filed: 1973-10-19
Abstract: 1399208 Indicating measurement; measuring angles; photo-electric apparatus ADOLPH SAURER Ltd 19 Oct 1973 [27 Oct 1972] 48880/73 Headings G1A G1J and G1X In equipment having a rotating shaft 12, apparatus for measuring the phase angle between a  synchronizing signal generated by means 2 under control of the shaft 12 and a reference signal generated by means 11 directly coupled to the shaft 12 comprises a transducer 20 for converting the signals into first and second light beams which are projected via an optical system 61 rotating in synchronism with the shaft 12 to produce first and second substantially stationary light spots on a stationary disc 62 such that the angular distance between the spots is a measure of the phase angle. The signals from means 2, 11 pass through separate channels of a pulse amplifier 16 and on OR gate 18 to a lamp 20 such as a light emitting diode. The optical system 61 comprises mirrors mounted on a carrier which is drivingly connected to the shaft 12 by a flexible shaft or a synchro 15. The signal generating means 2, Fig.2, comprises, in a housing 23 with a non-reflective interior lining, a lamp 25 which directs a beam through a semitransparent mirror 26 and via an inclined mirror 13 on the shaft 12, a reflecting strip 22 on a rotatably mounted carrier 21, the mirror 13, and the mirror 26 to a photo-cell 27 so that the latter produces an electric pulse once per revolution of the shaft 12. The carrier 21 is connected by a synchro 31, 32 to a manually rotatable scalebearing ring 63 surrounding the disc 62, so that angular adjustment of the ring 63 adjusts the angular position of the shaft 12 at which the synchronizing signal pulse is produced. The signal generating means 11 may be a contact switch associated with a particular operation of the equipment. Other reference signal channels may be provided for other operations. To measure the phase angle, the ring 63 is adjusted until the synchronizing signal spot on disc 62 is coincident with the reference signal spot, (a lamp 19 fed from an AND gate 17 lights when this coincidence occurs) the angle then being read off the scale on the ring 63.
Patent GB-1081178-A (GB)
Title: Acoustically resonant device
IPC: H03H9/05
Filed: 1965-11-18
Abstract: 1,081,178. Piezoelectric resonators; electric component assemblies; semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 18, 1965 [Dec. 4, 1964], No. 49020/65. Headings H1E, H1K and H1R. A piezoelectric resonator is solidly mounted upon a substrate by means of a layer or layers of material which presents an acoustic mismatch to the resonator and to the substrate. The resonator is preferably a plate of e.g. quartz, cadmium sulphide or polarized PZT and resonates in a longitudinal-wave thickness mode. The substrate may comprise a transistor oscillator or amplifier in the form of an integrated circuit, the resonator forming part of such circuit. The layers are interposed between a major face of the piezoelectric resonator and the substrate. They each have a thickness equal to one or an odd number of quarter-wavelengths at the resonant frequency and have an impedance such that Z 0 /Z x  is either less than 0À1 or greater than 10, Z 0  being the acoustic impedance of the resonator and Z x  the impedance seen by the resonator. Thus, a layer of polythene may be interposed between a resonator of PZT and a substrate of silicon, the resonator in this case having an effective thickness of one half-wavelength. If a quarterwave resonator is to be used, an intermediate layer of a material having a higher impedance than the resonator material, e.g. a layer of tungsten, must be used. Alternate layers of higher and lower impedance may be used, materials referred to, in addition to those above, being gold, platinum, glass and PTFE. A detailed example of the use of a double layer of tungsten and magnesium is described. The substrate in this case may be of brass or of a Fe, Ni, Co alloy. The bonding material between the layers is chosen to provide a comparatively free bond at those interfaces where the standing stress-wave is a minimum and a rigid bond where the standing wave is a maximum. For the first type of bond, epoxy resin cement or indium alloy solder may be used; for the second type, metals such as gold or platinum may be used. Where very high frequencies are desired, the (thin) intermediate layers and the resonator may be formed by sputtering or vacuum evaporation, thus obviating the need for bonding. The resonator in this case may be made of cadmium sulphide. As the resonator material is deposited, periodic or continuous measurement of resonant frequency is made, and the deposition terminated when the required value is reached.
Patent GB-1522619-A (GB)
Title: Moulded components for sports games
IPC: B05C13/00
Filed: 1975-09-25
Abstract: 1522619 Football and games SUBBUTEO SPORTS GAMES Ltd 25 Sept 1975 [13 Nov 1974] 49041/74 Heading A6H [Also in Division B2] Similar moulded components for use in the playing of a sports game are painted by a process wherein the similar moulded components form parts of a one-piece moulding and each is at the same position relative to a datum line which is defined by the moulding and which is used for the positioning of brush or spray painting apparatus.
Patent GB-1097632-A (GB)
Title: Gas turbine power plant
Inventor: ROBERTS DEREK AUBREY
IPC: F01D17/16
Filed: 1965-11-19
Abstract: 1,097,632. Propelling aircraft; air cushion vehicles. BRISTOL SIDDELEY ENGINES Ltd. Nov. 18, 1966 [Nov. 19, 1965], No. 49289/65. Headings B7G and B7K. [Also in Division F1]. A gas turbine power plant which provides propulsive thrust and drives a helicopter rotor or an aircraft ducted lift fan or a fan supplying cushion air for an air cushion vehicle comprises compressor, combustion equipment, a first turbine 1 arranged to drive the compressor, a second turbine 4 and a third turbine 6 all disposed in series flow, there being control means for regulating the gas flow between the second and third turbine rotors thus regulating the relative power outputs of these two turbines, also differential gearing comprising two input elements arranged to be driven respectively by the second and third turbines and an output element which constitutes a power output member. In the embodiment shown, the control means between the second and third turbines comprises a series of adjustable guide blades 7. The exhaust gases discharging from the turbine 6 pass through a duct 15 to a propulsion nozzle 14. The third turbine 6 is arranged to drive a ducted fan 10 which is disposed in a duct 11, the air discharging through a propulsion nozzle 13. The second turbine 4 is mounted on a shaft 3 which is connected at its downstream end to an internal ring gear 18, while the third turbine 6 is mounted on a shaft 5 which carries at its downstream end a sun gear 17, a series of planet gears 20 carried on a planet carrier 21, engaging with the sun gear 17 and the internal ring gear 18. The planet carrier 21 carries a bevel gear 23 which engages with a bevel gear 24 mounted on the output shaft 26. A further bevel gear 27 also engages the gear 23 and transmits drive to a further bevel gear 28 which also engages the bevel gear 24. The engine shown is suitable for a helicopter. The shaft 26 drives the fans or rotor and the jet nozzles 13, 14 provide the propulsive thrust.
Patent GB-1516794-A (GB)
Title: Prefabricated buildings
IPC: E04B1/348
Filed: 1976-11-24
Abstract: 1516794 Portable room unit SICOF 24 Nov 1976 [1 Dec 1975] 49298/76 Heading E1A A prefabricated parallelepipedal room unit comprises a roof 1 and floor 2 of unitary construction having a peripheral rib 15, 26 serving as a service housing and strengthening member. Vertical wall sections 5, 48 interconnect the roof and floor units which latter may have inner and outer skins 11, 14 of polyester or phenolic laminate a plywood structural layer 12 and a polyurethane foam, phenolic foam or lightweight concrete insulating layer 13. The service conduits in the floor and roof units may be interconnected by vertical conduits in the corners of the room units and may carry downpipes for rainwater from a roof gully. Vertical wall sections may be cantilevered out from the sides of the unit and incorporate a shower tray 49. The walls may be connected to the roof and floor by plates 42 screwed across wooden frames or by releasable morticed locking bolts.
Patent GB-1291577-A (GB)
Title: Herbicidal compositions
Inventor: KRENZER JOHN
IPC: C07D271/06
Filed: 1969-10-08
Abstract: 1291577 Herbicides containing oxadiazolidines VELSICOL CHEMICAL CORP 8 Oct 1969 49330/69 Addition to 1142917 Heading ASE [Also in Division C2] A herbicidal composition comprises a first compound of the formula: wherein R is alkyl having 1 to 3 carbon atoms or alkenyl having 3 carbon atoms; Z is oxygen or sulphur; X is halogen, lower alkyl, lower alkenyl, lower haloalkyl, lower alkoxy, nitro, amino, lower alkylamino, lower dialkylamino, lower alkylthio, lower alkylsulphoxide, lower alkylsulphone, cyano or thiocyano; and n is an integer from 0 to 4, provided a maximum of two X's are selected from the group consisting of nitro, amino, lower alkylamino and lower dialkylamino, when n is greater than 2; and a second compound selected from the group consisting of the dialkylamine salts of dicamba, the alkali metal salts of dicamba and the alkali metal salts of 2-[(4-chloro-otolyl)oxy]-N-methoxyacetamide. The term lower means up to 10C. Typical examples of the first compound are 2-(3', 4'-dichlorophenyl)-4- methyl-1, 2, 4-oxadiazolidine-3, 5-dione; 2-(2', 4', 5'-trichlorophenyl)-4-methyl-1, 2, 4-oxadiazolidine-3, 5-dione; and 2-(3'-chloro-4'-bromophenyl-4-methyl-1, 2, 4-oxadiazolidine-3, 5- dione.
Patent GB-1131240-A (GB)
Title: Breathable polymer films
IPC: C08F8/44
Filed: 1965-11-19
Abstract: 1,131,240. Wrapping foodstuffs in plastics. UNION CARBIDE CORP. 19 Nov., 1965 [20 Nov., 1964], No. 49331/65. Heading B8C. [Also in Division C3] A method of packaging a food product comprises completely or partly enclosing the product in a film of an alkali metal salt derivative of a particular type of ethylene-acrylic acid interpolymer (for further details of the polymer film see Division C3). In Examples 7-9 beef is packaged with a film by heat-sealing at 250‹ F. Other food products which may be packaged include pork, lamb and fresh fruit and vegetables.
Patent GB-1510688-A (GB)
Title: Manufacture of heat exchangers
IPC: F28F1/36
Filed: 1975-12-02
Abstract: 1510688 Heat exchange tubes GENERAL ELECTRIC CO 2 Dec 1975 [4 Dec 1974] 49438/75 Heading F4S [Also in Division B3] A finned heat exchange tube comprises a tube 14 on to which is wound a helical fin 12 in intimate contact with the tube wall except at end regions thereof where the fin is secured by means such as an adhesive 27 to the tube. Adjacent turns of the fin may be deformed as shown in Fig. 4. The fin and tube may be made of aluminium. A method of making the tube is described (see Division B3).
Patent GB-1370797-A (GB)
Title: Production of doxycycline
IPC: C07C/
Filed: 1971-10-29
Abstract: 1370797 Doxycycline RACHELLE LABORATORIES ITALIA SpA 29 Oct 1971 [28 Dec 1970] 50366/71 Heading C2A A process for the preparation of α-6-deoxy-5- oxytetracycline-(doxycycline) from a mixture of the α- and #-epimers of 6-deoxy-5-oxytetracycline sulphosalicylate comprises neutralizing the mixture in an aqueous medium with two equivalents of a base per equivalent of epimer, at a temperature of less than 90 C. and at a pH of from 5À5 to 8À5 and recovering the precipitated α-6-deoxytetracycline formed. Such an epimeric mixture may be obtained by hydrogenating a 6- methylene-5-oxytetracycline and reacting the resulting product with sulphosalicylic acid. Suitable bases are alkali metal carbonates and triethylamine. The process may be applied to the production of the amphoteric base and the hydrochloride or hyclate (hemihydrate hemiethanolate) thereof.