baber/WOPTO huggingface dataset:
Patent GB-1309479-A (GB)
Title: Production of methyl chloroform
IPC: C07C17/00
Filed: 1970-12-18
Abstract: 1309479 Methyl chloroform FMC CORP 18 Dec 1970 [18 Dec 1969] 60266/70 Heading C2C Methyl chloroform is produced by (a) feeding chlorine, ethyl chloride, 1,1-dichloroethane and hydrogen chloride into a chlorination reactor at 340-450 C. to obtain a mixture rich in vinyl chloride and vinylidene chloride, (b)hydrochlorinating the mixture to produce methyl chloroform and 1,1-dichloroethane, and hydrochlorinating ethylene to produce ethyl chloride, (c) separating and recovering the methyl chloroform, and (d) recycling the ethyl chloride, 1,1- dichloroethane and at least part of the excess hydrogen chloride to the chlorination reactor. The process may be batch-wise or continuous. The chlorination product may be distilled prior to hydrochlorination, and the heavy fraction, including any 1,2-dichloroethane formed, fed to an oxychlorinator for conversion to trichloroethylene, perchloroethylene or 1,1,2-trichloroethane. The chlorination products and ethylene may be hydrochlorinated in the same reactor. Hydrochlorination is preferably effected using a suspension of ferric chloride in methyl chloroform, 1,1-dichloroethane, 1,1,2-trichloroethane or perchloroethylene. Some excess hydrogen chloride from the hydrochlorinator may be fed to an oxychlorinator.
Patent GB-1366339-A (GB)
Title: Solenoid-operated gas valves
IPC: F16K31/06
Filed: 1971-12-29
Abstract: 1366339 Valves SATCHWELL CONTROLS Ltd 26 Jan 1973 [29 Dec 1971] 60618/71 Heading F2V  In a solenoid-operated gas control valve in which a member 6 transmitting the movement of an armature 7 to a closure member 4 is sealed and connected to a diaphragm 10, the arms of the diaphragm and the closure member subjected to the gas pressure are such that the force on the diaphragm tending to open the valve is substantially equal to or less than that on the closure member itself tending to close the valve. Two such valves may be connected in series, the gas passing in opposite directions through the two valves. When used to control a gas heater the first valve is the main control and the second a burner control, a feed for a pilot burner being taken from between the two valves. A pressure regulator may be incorporated between the two valves and between the pilot burner feed point.
Patent GB-1220642-A (GB)
Title: Method of measuring electric signals and circuit arrangement for carrying out the method
IPC: G01R19/00
Filed: 1968-12-24
Abstract: 1,220,642. Voltage measurement. HIBADASTECHNIKAI IPARI KUTATO INTEZET. Dec. 24, 1968 [Dec.29, 1967], No.61368/68. Heading G1U. In a circuit arrangement for measuring an alternating voltage whose amplitude may be lower than the noise level of the amplifier stages used in the measuring system, the voltage is applied to two identical amplifier stages 1, 2 whose outputs are applied to respective summing and differencing units 3, 4. The difference value is subtracted from the sum value in differential rectifier unit 7, which should provide an output related to twice the input signal, free from noise. This is measured by an indicator 9, having an input circuit with a time constant greater than the reciprocal of the bandwidth of the amplifier stages. The circuit relies on the fact that for the passage of the signal to be measured, the output of the summing unit 3 should be related to twice this signal, while that from the differencing unit 4 should be zero. The noise originating in the circuits 1 and 2 however will be unrelated in phase and amplitude, and an average, the noise levels in the outputs from the units 3 and 4 will be the same. Subtraction of the outputs at 7 will therefore eliminate the noise to leave a signal related to twice the input. Further amplifiers (5), (6) Fig. 2 (not shown) may be included in the system in the inputs to the rectifier, 7 and a filter (8) may be connected in its output. The sum and differencing units may be provided by the two output halves of a centre tapped transformer, the input being applied both to the primary and in series with the centre tap of this transformer, the sum and difference outputs being obtained across the two parts of the secondary respectively. Fig. 3 (not shown).
Patent GB-1254858-A (GB)
Title: Valve or check valve
Inventor: RATELBAND JOHANNES BERNADUS
IPC: F16K15/06
Filed: 1968-12-27
Abstract: 1,254,858. Valves; pipe joints. J. B. RATELBAND. 27 Dec., 1968, No. 61513/68. Headings F2G and F2V. Securing a check valve between two pipe flanges 4, the housing 1 of which check valve is externally threaded at its extremities for possible mating connections with internally threaded pipes, is effected by securing elastomeric rings 2 upon the threaded extremities and fixing the valve between the flanges 4 by bolts 5, each ring being provided with a gasket-forming radially and inwardly directed rim 3, and with circumferential recesses 16 of different radial depth, which recesses enable the elastomeric rings to be used with flanges 4 having apertures lying on a circle of diameter different from that as shown. The valve member 6 is guided for movement with respect to its seat 12 by a stem 8 and ribs 9 and is biased towards the seat by a spring 10, both the seat 11 and the guide-constituting casing 7 being secured to the housing 1 by rings 13 and 15, respectively.
Patent GB-1244270-A (GB)
Title: Wearing lining for a converter mouth
IPC: C21C5/44
Filed: 1969-12-30
Abstract: 1,244,270. Converter linings. OSTERREICHISCH - AMERIKANISCHE MAGNESIT A.G. 30 Dec., 1969 [8 Jan., 1969], No. 63405/69. Heading F4B. The wearing lining 3 of the mouth of a converter is formed from superposed courses of refractory wedge bricks, those bricks A2 of one type forming the inner courses of the lining being turned through 180 degrees relative to the bricks Al of the other type forming the outer courses. This allows the lining to be formed from only two types of bricks, which have the same side profile but differing degrees of taper. Preferably the acute angled edges of the wedge bricks are slightly trimmed off to reduce the risk of their breakage.
Patent GB-642173-A (GB)
Abstract: 642,173. Stoves. ESSELSTROM, J. Dec. 23, 1947, No. 33901. Convention date, Oct. 15, 1940. [Class 126] In a stove air tubes around the firebox supply heated air to a hot cupboard. As shown the firebox 1 comprises groups of spaced tubes 2 the tubes lying above and below the firebox being angular with their lower limbs opening into a chamber G at the front of the stove and their upper limbs discharging into the hot cupboard 8 which is provided with shelves 9. The tubes at the sides of the firebox and at the extreme back of the stove are straight, their lower ends opening into an extension of the chamber 6 whilst their upper ends discharge into the cupboard. The air to be heated enters the tubes 2 through the controlled air inlet 6' in the chamber 6 and passes up through the cupboard to the damper 7 which may be adapted to allow the air either to flow back to the chamber 6 via the downpipe 14 for recirculation or escape to the atmosphere. The combustion gases pass to the flue 4 through spaces 12 around the tubes and the openings 13. In the Specification as open to inspection under Sect. 91 the hot cupboard is provided with dampers so that individual shelves may be cut off more or less completely from the stream of hot air and the shelves are provided with a V-shaped base. This subject-matter does not appear in the Specification as accepted.
Patent GB-722465-A (GB)
Abstract: 722,465. Multi-gap cold-cathode tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 14, 1952 [Aug. 17, 1951], No. 20460/52. Class 39 (1). A multiple glow discharge tube in which one group of electrodes is formed by a number of rods arranged 'with regular intermediate spacings in a cylindrical surface, and the other group is formed by a number of cylindrical rings of equal diameters co-axial with the said cylindrical surface, and in which the discharge paths formed at the crossings of the two electrode groups are screened from one another by screens of insulating material constituted by flat discs between the cylindrical rings and by elongated plates extending in the meridian planes of the cylindrical surface, is characterized in that provision is made of auxiliary anodes, extending parallel to the anodes slightly spaced apart from the cathodes and at the side of indents in the cathodes. In one embodiment, Fig. 1, ten cathodes in the form of nickel rings 3, each having ten indents 4, are mounted between flat mica discs 2 having a comparatively large hole in the centre. Mica strips 5 are mounted in recesses in the discs 2 on each side of the indents 4. Rod anodes 6 are located opposite the indents 4 and rod auxiliary anodes 7 are located to one side of the indents. The main discharge concentrates in an indent of the cathode concerned, so the auxiliary anode is not located in the direct discharge path and does not assume the potential of the discharge. Consequently the potential of the auxiliary anode with respect to the other cathodes does not exceed the ignition voltage. The supply wires 8 for the cathodes extend through the discs 2 and are connected to pins in the base of the tube. The tube is filled with argon at a pressure of 15 mm. of mercury. In an alternative arrangement, Fig. 3, ten ring anodes 10 are mounted between ceramic discs 14, each anode being associated with ten rod cathodes 9. The discharge paths are screened from one another by ceramic plates 15 having recesses to support the auxiliary anodes 11 which are connected by short wires 13 to supply wires 12 and are positioned to one side of indents (not shown) on the rod cathodes 9. Specification 471,194 is referred to.
Patent GB-725766-A (GB)
Abstract: 725,766. Window-operating mechanism. ZUKLIN, H. July 14, 1953 [July 15, 1952], No. 19538/53. Class 20 (3). An operating device for a sash window, particularly for a vehicle window 9 comprises a lazy tong lever mechanism 6 journalled at 26 in a base frame 1 and pivoted at its upper end to the lower frame member of the window 9, a spring 2 connected between the lower ends of the lever mechanism 6 being coupled by a plate 7 to one end of a second spring 2a, the other end of which is connected to an arm of a bell crank 17 in a control mechanism, the two springs 2, 2a being under such initial stress that together they at least offset the weight of the window 9. An eccentric 22, rotatable by a handle 25, is connected to the other arm of the bell crank 17 by a rod 21, the window being raised, or lowered, by rotating the handle 25 in the appropriate direction so that more, or less, tension is applied to the spring 2a. The springs 2, 2a may be arranged concentrically one within the other. A friction brake having an operating lever 12 and an eccentric disc 13 to coact with the window pane is mounted on a cover strip 16. In a modification, the spring 2a is replaced by a rod which forms the core of two solenoids which can be supplied individually with current to increase or decrease the effect of the spring 2. To enable the device to be operated should the source of current fail, the rod passing through the solenoids is also connected to a bell-crank lever system as shown in Fig. 1. The operating lever 25 and the switch operating the solenoids may be coupled. A plurality of control mechanisms may be connected to a single eccentric 22 operable by one handle.
Patent GB-2015650-A (GB)
Title: Starter motor for an internal combustion engine
IPC: F02N15/06
Filed: 1978-08-29
Abstract: The starter motor has an electromagnetic switch (11) and a "tooth against tooth" safety spring (37) to deform to allow the switch core (14) to move into a switch closing position even if the teeth on the starter pinion (10) and the starter ring gear of the engine are coincident rather than meshing as the pinion (10) contacts the starter ring gear. The "tooth against tooth" spring is a leaf-spring (37) serving as a yieldable fulcrum for the yoke (20), and the moving core (14) of the switch accommodates a contact spring 33 and a contact-bearing rod (15) of the switch which rod passes slidably through the fixed core (13) of the switch. At its end remote from the contact, the rod (15) engages a yieldable stop (34) which engages the spring 33. The fixed core is devoid of a contact-closing spring. <IMAGE>
Patent GB-2004564-A (GB)
Title: Superfitting Roof Bars
IPC: C11D9/26
Filed: 1978-09-13
Abstract: Neutral soap is reacted with an aliphatic dicarboxylic acid so as to release free fatty acids, in order to improve the lather and wear properties of bars produced from the mixture.
Patent GB-2030656-A (GB)
Title: Bladed Rotor for Centripetal Turbine
IPC: F01D5/30
Filed: 1978-09-26
Abstract: Ceramic blades (17) with integral blade roots (18) of arcuate axial section are clamped axially between two supporting elements (1, 2) mounted on a common shaft (9) so that the ceramic blade roots are maintained in compressive stress along their arcuate, radially inwardly convex, profiles, opposing centrifugal strain in the blade roots. Cooling air may be supplied along axial channels (10) in one hub (1) to an internal chamber (31) within the blade roots (18) and may thence flow outwardly via bores (34). <IMAGE>
Patent GB-2011512-A (GB)
Title: Shutters and Elements Therefor
IPC: E06B9/17
Filed: 1978-12-14
Abstract: The present invention provides a shutter 1 having double skin laths 2. This allows interlocking means which articulate between adjacent laths 2 to be no deeper than the laths 2 themselves, and also allows for a protective shield 10 in front of the interlocking means. The shutter has a bottom rail 3 with a T-section flange 18 for engaging with the bottom lath 2, and a web 16 parallel to but offset to one side of the stem of the T 18. The rail 3 may engage with the lath 2 so that the web 16 is offset towards either the front or the back of the shutter 1, and in either configuration a lock 24, attached to the web 16 to be accessible from the back or the front of the shutter 1 respectively will be approximately central with respect to the faces 5, 7 of the shutter 1. <IMAGE>
Patent GB-2014363-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L21/265
Filed: 1979-02-07
Abstract: In a process for manufacturing gallium arsenide devices regions of high resistivity are created in the gallium arsenide by subjecting the regions to bombardment by protons and then by deuterons, the energies of the protons and deuterons being so chosen that they penetrate to the same depth. To provide a uniform resistivity throughout the depth of the treated region both bombardments are effected at a constant beam current with the particle energy increased in regular steps.
Patent GB-2019104-A (GB)
Title: Choke coil
IPC: H01F37/00
Filed: 1979-04-11
Abstract: A choke coil for use as a ballast in electric discharge lamps consists of a wound electric coil 1 on the central leg of a laminated core formed from two stacks of laminations 30, 31. An air gap 39 is provided in the central leg. The abutting joints 5 between the laminations 30 and 31 extend transversely to the axis 6 of the coil 1 and the stacks of laminations are held together by snap connections 35, 37; 36, 38 which are situated on the inside of the laminated core and hold the stacks of laminations 30, 31 pressed against each other, at the same time minimizing the air gap 39. The use of E-, I-, T- and U-shaped laminations is envisaged. <IMAGE>
Patent GB-2047861-A (GB)
Title: A smokers lighter
IPC: F23Q2/16
Filed: 1979-04-23
Abstract: A smokers lighter has a rectangular housing 10 which simulates a conventional matchbox, a longitudinally slideable flame producing unit 12, spring biased towards its outward position and a protective cover around that portion of the unit which in its outwardly projecting position projects beyond the confines of the rectangular housing. In an alternative construction, the housing has a flexible portion 360 Fig. 9 which can be deformed outwardly when the unit is pushed in, so that ignition of the lighter can be prevented except when the flexible portion is held against such a deformation. <IMAGE>
Patent GB-2025959-A (GB)
Title: Preparing Nicotine by Culturing a Nicotiana Strain
IPC: C12P17/16
Filed: 1979-07-17
Abstract: A process for producing nicotine which comprises cultivating a strain of Nicotiana tabacum or Nicotiana rustica in suspension culture under sub-maximal growth conditions which do not inhibit nicotine production, in the presence of an auxin and a cytokinin.
Patent GB-2061467-A (GB)
Title: Two Speed Hydrostatic Transmissions
IPC: F16H61/448
Filed: 1979-10-19
Abstract: In a 2-speed reversible hydrostatic transmission for a winch drum, motors (10, 11) receive fluid from pump (25) via directional control valve (24), and a speed control valve (14) is operable to determine whether motor (10) alone or both motors drive the winch drum. When motor (11) is not required to drive the drum, valve (31) responds to supply pressure by establishing a recirculation loop (48) for that motor for lubrication purposes and to prevent excess pressure build-up. Pressure in the transmission is effective to cause servo (51a) to release a brake associated with the winch drum. <IMAGE>
Patent GB-2035195-A (GB)
Title: Tabletting process and apparatus
IPC: B30B15/34
Filed: 1979-10-30
Abstract: A process for the production of tablets includes compressing granulated material at a regulated temperature. A tabletting machine includes cam-actuated upper and lower punches 10, 11 cooperating with die cavities 13 in a rotary table 12 having ducts 35-37 supplied with a liquid or gaseous medium of adjustable temperature. Alternatively ducts in the table and upper punch contain electric heaters. In a modification the machine is enclosed in a chamber associated with adjustable heating or cooling units. <IMAGE>
Patent GB-2037470-A (GB)
Title: Coin selector mechanism
Filed: 1979-11-07
Abstract: A coin selector mechanism for an accept-reject assembly comprising a one-piece coin cradle (2) mounted in a support body (21) for movement about a pivot between a rest position and one or more other positions by a coin or token arrested by a pair of spaced arrestor legs (5, 6) located on one side of the support body, the cradle being normally biassed into its rest position and having a portion (4) extending through the body to provide said pivot and one of said arrestor legs (5) extending through the support body from the opposite side thereof. Preferably, the portion of the cradle which extends through the support body is received and located in a channel provided in the periphery of an aperture formed in the support body, said cradle portion being retained in the channel by means of a plug (11) fitted in said aperture. <IMAGE>
Patent GB-2039231-A (GB)
Title: Coating crosslinked organopolysiloxanes
IPC: C08J7/043
Filed: 1979-11-30
Abstract: The adhesion of the coatings to crosslinked organopolysiloxanes, is improved by applying to the surface, before coating or adding to the coating composition a silane containing per molecule (a) at least one amino group that is bonded through one or more carbon atoms via an SiC-linkage and optionally one or more other atoms, to a silicon atom, and (b) at least one silicon-bonded monovalent hydrocarbonoxy radical that is unsubstituted or is substituted by an amino or alkoxy group, and/or a partial hydrolysate thereof. Preferred silanes have the formula [R<2>2N(CH2)mYa(CH2)n]b Si(OR<3>)cR4-b-c in which R denotes optionally substituted hydrocarbon, R<2> denotes hydrogen or optionally substituted hydrocarbon, R<3> denotes unsubstituted or (amino or alkoxy) - substituted hydrocarbon, Y denotes -O- or -N(R<2>)-, a denotes 0 or 1, b and c denote 1 to 3, and m and n denote 1 to 10; for example the silane (CH3O)3Si(CH2)3NH(CH2)2NH2.
Patent GB-2038452-A (GB)
Title: Non-return valve
IPC: B63C/
Filed: 1979-12-20
Abstract: A non-return inflation valve, with manual blow-off control, for rubber dinghies, salvage lifting units for the recovery of scuba divers or the like comprising a valve casing (1) fitted with a valve seat (6), a guided plug element (7) axially movable within said valve casing and elastic means (16) for keeping said plug element continuously in contact with said valve seat, the plug element being provided with a spindle (9) which can be manoeuvered from the outside and by means of which the said plug element can be lifted off said valve seat, so as to allow the escape of the air through said non-return valve. <IMAGE>
Patent GB-2040297-A (GB)
Title: Actinic radiation-curable formulations
IPC: C08F299/06
Filed: 1980-01-08
Abstract: Energy curable compositions which can be cured in the presence of air by exposure to actinic radiation contain (A) at least one unsaturated oligomer selected from the group consisting of (I), the reaction product of at least one unsaturated active hydrogen- containing compound, at least one polyetherester, said polyetherester having in its main chain the residue of at least one poly(alkylene oxide) polyol; and (II) the reaction product of (i) at least one olefinically unsaturated compound containing a single reactive carboxy or hydroxyl group and (ii) at least one compound selected from the group consisting of poly(alkylene oxide)polyols, hydroxyl-terminated polyetheresters and carboxyl-terminated polyetheresters, said polyetheresters having as a characteristic feature the residue of at least one poly(alkylene oxide) polyol in the main chain of said polyetherester; (B) an ethylenically unsaturated monomer; and (C) a photosensitizer.
Patent GB-2069448-A (GB)
Title: Conveyor
IPC: B65G65/06
Filed: 1980-01-25
Abstract: A boom 4, pivoted at one end, supports sprockets 1, 10 on which a chain conveyor 11 is mounted. Outwardly projecting members 12 are fixed at spaced intervals to the chain. The upper run of the chain runs in a trough 13 and the lower run is open. A cowl 30 is fixed to the remote end of the boom with an entrance port 33 adjacent the lower run. The boom may be swung from side to side as well as pivoted up and down. The chain is driven in one direction so that, when the boom is lowered against the side of a heap of granular material, the members projecting from the lower run of the chain scrape the material downwardly to the output of the conveyor. The boom is continuously lowered, until it is horizontal, when the chain can be driven in the opposite direction to enable the remaining material to be conveyed, by the upper run, to the output. A modification is disclosed in which an additional sprocket is in a raised position, which is either fixed or adjustable to increase the discharge height for material transported on the upper run. <IMAGE>
Patent GB-2062078-A (GB)
Title: Scaffolding Cover
IPC: E04G21/32
Filed: 1980-02-01
Abstract: A scaffolding cover 7 comprises loops 13 woven on it, so that this cover can be attached to frame elements 5 of the scaffolding in a more easy and firm way. <IMAGE>
Patent GB-2069618-A (GB)
Title: Method of, and apparatus for, utilising the kinetic energy associated with a hydraulic head
IPC: F03B13/06
Filed: 1980-02-15
Abstract: Energy associated with a hydraulic head is dissipated through compression means to provide pressurised air, said pressurised air is stored in an appropriate storage vessel 12, and thereafter expanded through turbine means 38 to perform work. The system comprises transfer tanks 12 and open-bottomed storage tank 28 which are located upstream of a dam 10 at its base. Tanks 12 are connected to tank 28 through transfer lines 32 with check valves 34, and each tank 12 has an air inlet 14 with check valve 18, a valve-controlled water inlet 20 and a valve-controlled water outlet 24 for emptying the tank 12 to downstream of the dam. Tank 28 supplies air-driven turbine 38 via outlet 36. Tanks 12 are alternately drained of water and filled with air, which is pressurised and transferred to tank 28 by refilling tanks 12 with water. <IMAGE>