baber/WOPTO huggingface dataset:
Patent GB-931047-A (GB)
Title: Apparatus for the measured delivery of liquid
IPC: B67D7/48
Filed: 1961-11-21
Abstract: 931,047. Filling tanks. AVERY-HARDOLL Ltd. Nov. 21, 1961 [June 9, 1961], No. 41624/61. Class 21. [Also in Group XXIX] In a receptacle filling device a main valve is closed automatically to stop the flow of liquid into a receptacle when it reaches a desired level, the valve being held open by the action, on a piston associated with it, of liquid pressure derived at least in part from a jet of liquid, constituting part of the liquid flowing through the device, and directed on to a pitot tube the bore of which is connected to a chamber in which the piston is mounted, the jet being disturbed when the liquid reaches the desired level in the receptacle to reduce the pressure produced in the pitot tube and to allow the main valve to close. The device includes a first auxiliary valve opened to admit liquid under pressure from the upstream side of the main valve to the piston chamber, and a second auxiliary valve opened to permit the flow of fluid forming the jet, wherein the valves are caused to open successively by operation of a single control lever and the first auxiliary valve is closed automatically during the period starting with the formation of the jet of liquid and terminating with the opening of the main valve. Operation of the control lever 4a rotates a lever 6 against the action of a spring 5 thus rotating a second lever 8 to open the first auxiliary valve 10 to allow liquid under pressure to pass down a duct 21 to act on the rear face of a valve member 23 pushing it into abutting relationship with a face 19a of the piston 19 against the action of a spring 24 and then forwarding the piston slightly to the right as shown in Fig. 2. This opens ducts 2b to allow liquid to enter a nozzle 12 and spurt as a jet on to the pitot tube 18. The pressure in the pitot tube builds up and forces the valve member 23 away from the flange 19a and further forces the piston 19 and valve member 2 to the right to open the main valve. As the main valve begins to open the valve member 10 escapes from the lever 8 and closes under the action of a spring 11, the valve member 2 continues moving to the right under the action of the pressure built up in the pitot tube. The extent to which the valve opens is determined by the position in which the lever 4a is held and thus the position of the lever 8. The jet causes air to be drawn up a pipe 16 connecting a port 1c to a vacuum tapping. The flow of liquid continues until the level of liquid in the receptacle to be filled has reached the port 1c. Liquid is then drawn up the pipe 16 and fills the cavity 13 thus reducing the pressure in the pitot tube. This reduces the pressure on the left hand face of the piston 19 and allows the valve member 2 to move to the left to close the main valve under the action of a spring 31 and the flow of liquid through the nozzle. Specifications 724,064 and 727,639 are referred to.
Patent GB-1532377-A (GB)
Title: Board-game displaying apparatus
IPC: A63F3/00
Filed: 1977-10-07
Abstract: 1532377 Game board R E TONER 7 Oct 1977 [6 Oct 1977] 41673/77 Heading A6H [Also in Division G2] A board game viewing apparatus comprises a housing containing illuminating and reflecting means, an at least partially transparent board supported from below by the housing, and a cine or TV camera for viewing the board via the reflecting means. As shown, housing 1 is situated below non-reflecting screen 10 and contains pivoted mirror 5, lamps 9, opening 3 supporting chess board 4, and opening 7 through which the board is vented by a cine or TV camera. The board may be of glass or plastic. It may have reflective squares comprising etched lines or may support white lined plastics sheets. A white frame for the board may be marked around hole 3.
Patent GB-846227-A (GB)
Title: Esters of 2-oxo-17ª‰-hydroxy-a-nor-androstane and the preparation thereof
IPC: C07J1/00
Filed: 1958-12-29
Abstract: The invention comprises esters of 2-oxo-17 beta-hydroxy-A-nor-androstane with carboxylic acids containing from 1 to 10 carbon atoms and their preparation by reacting the free alcohol with the appropriate acid or an anhydride or halogenide thereof. Suitable acids include alkanoic, halo-alkanoic, hexahydrobenzoic, cycloalkylalkanoic, furane-2-carboxylic, nicotinic, benzoic, aralkanoic, dibasic, e.g. succinic, tartaric, and carbamic acids.  In examples the esterifying agents used are propionic acid anhydride, decanoyl chloride, beta-cyclopentyl-propionyl chloride, benzoyl chloride and beta-phenyl-propionic acid anhydride, all used in the presence of pyridine.  Other esterifying agents and procedures are also referred to.
Patent GB-1117817-A (GB)
Title: Improvements relating to the testing of electric fuses
Inventor: TURNER HENRY WALTER
IPC: G01R31/02
Filed: 1965-10-05
Abstract: 1,117,817. Testing fuses. ELECTRICAL RESEARCH ASSOCIATION. Jan.3, 1967 [Oct. 5, 1965], No.42232/65. Heading G1U. A fuse 7, to be tested, is connected to a lowvoltage supply 1 and the current flowing through it is controlled as by resistor 5 so that the resistance-ratio/time characteristic 10, Fig. 2 (not shown), (i.e. the variation with time of the ratio of its hot resistance to its cold resistance) is substantially the same as the average characteristic of a sample of fuses when a substantially constant current is passed through the fuses for a specified time. At the end of this specified time, the fuse is switched in to a high-voltage circuit 2, 3, a higher current flows through the fuse and it blows. Its behaviour during "blowing" is observed visually or on meters. A bridge circuit, suitable for servo-control of the current passing through the fuse is described, Fig.3 (not shown).
Patent GB-967585-A (GB)
Title: Process for the manufacture of di-ªÊ-alkylpolyalkyleneglycols
Filed: 1960-12-08
Abstract: Polyalkylene glycol dialkyl ethers of formula: <FORM:0967585/C1/1> in which R is an alkylene group containing at least 2 carbon atoms, R1 is an alkyl group and each R1 may be the same or different, R2 to R9 each represent a hydrogen atom or an alkyl radical, and n is zero or a whole number, are prepared by condensing at least 2 mols of an alcohol corresponding to the general formula: R1-[O-R]n-OH in which R, R1 and n have the meanings given above or of a mixture of such alcohols with 1 mol of a b :b 1-dihalogeno-dialkyl ether corresponding to the general formula: <FORM:0967585/C1/2> in which X is a chlorine, bromine or iodine atom, and R2 to R9 have the meanings given above, in the presence of an alkali metal hydroxide or an aqueous solution thereof of at least 20%, by weight, strength. As radicals R1 for the alcohol reactant, those containing 1 to 4 carbon atoms are preferred, while the value of n is advantageously 0, 1 or 2. In the halogeno-alkyl ether reactant, R6, R7, R8 and R9 are preferably hydrogen, R2, R3, R4 and R5 are each preferably hydrogen or methyl, and X is preferably chlorine or bromine. The reaction may be carried out between 50 DEG  and 180 DEG C. and raised pressure may be employed. Vinyl ethers of polyalkylene glycol monoalkyl ether are obtained as by-products owing to the elimination of a molecule of hydrogen halide from the halogeno-alkyl ether reactant. Some divinyl compound is also formed by the elimination of two molecules of hydrogen halide.  Formation of the vinyl compounds is reduced by using excess of the alcohol reactant. Excess of the halogeno-alkyl ether reactant is not used because such excess gives rise to monohalogen compounds. Thus the reaction between b ,b 1-dichlorodiethyl ether and methanolic sodium hydroxide can produce b -chloro -b 1-methoxy diethyl ether, together with some b  chloroethyl vinyl ether, if the proportions of reactants are not in accordance with the invention. Examples illustrate the preparation of diethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, hexaethylene glycol dimethyl ether, octaethylene glycol dimethyl ether, tetraethylene glycol diethyl ether, tetraethylene glycol, di-isopropyl ether, diethylene glycol di-n-butyl ether, diethylene glycol di-sec.-butyl ether, tetraethylene glycol di-n-butyl ether, di-[b -(b 1-methoxy-ethoxy) -a - methyl-ethyl] ether and di-[b -(b 1-methoxy-ethoxy)-a , b -di-methyl-ethyl ether.
Patent GB-936322-A (GB)
Title: Method for preparing n-alkylmorpholines
IPC: B01J21/00
Filed: 1961-11-28
Abstract: In the preparation of N-alkyl morpholines, by reacting a morpholine with a non-tertiary alkanol in the presence of hydrogen under pressure, and a catalyst (Group IV(b), the catalyst comprises (A) a mixture of 50-90% by weight of cobalt or nickel, and 10-50% by weight of copper based on the total weight of metals, and (B) 0,5-5% by weight, based on the total, of chromium oxide, titanium oxide, thorium oxide, magnesium oxide, zinc oxide, manganese oxide, or rare earth oxides, chromium oxide being preferred.  In Example I, the catalyst is prepared by calcining the coprecipitated carbonates of nickel, copper, and chromium, the resultant mixture of oxides being reduced by hydrogen.ALSO:N-alkyl morpholines are prepared by reacting a morpholine, or a C-substituted morpholine, with a non-tertiary alkanol, in the presence of hydrogen under pressure and a catalyst which comprises (A) a mixture of 50-90% by weight of cobalt or nickel and 10-50% by weight of copper based on the total weight of the metals, and (B) 0.5 to 5% by weight based on the total of chromium oxide, titanium oxide, thorium oxide, magnesium oxide, zinc oxide, manganese oxide, or rare earth oxides.  The morpholine may be substituted in from 1 to 4 of the C-positions of the ring with alkyl groups containing from 1-4 carbon atoms.  The proportion of non-tertiary alkanol to morpholine is from 1 to 10 moles/mole of morpholine.  The non-tertiary alkanol may contain from 1 to 30 carbon atoms.  The total pressure of the system is from 500-5000 p.s.i.g., which includes a partial pressure of hydrogen of 10-100 atmospheres. The reaction time is from 5 mins. to 5 hours. Examples describe the preparation of: (1) and (3) N-methylmorpholine; (2) N-ethylmorpholine; (4) 2-methyl-N-methylmorpholine; (5) N-stearylmorpholine; (6) N-cetylmorpholine; (7) N-C12-C14 alkylmorpholine; (8) N-isopropylmorpholine; and (9) N-ethyl-2,6-dimethylmorpholine. The N-alkylmorpholines may be used in the production of polyurethane foams.
Patent GB-1435688-A (GB)
Title: Rotor assembly suitable for a gas generator
IPC: F01D1/20
Filed: 1972-02-09
Abstract: 1435688 Gas turbine plant R S DE CHAIR 6 Feb 1973 [26 Nov 1971(2) 2 Dec 1971 9 Feb 1972] 42708/75 42709/75 42710/75 and 42711/75 Divided out of 1435687 Headings F1G and F1L The invention relates to a rotor assembly suitable for a combustion gas generator as claimed in the Parent Application. The rotor comprises rows of compression and expansion blading which rows are separated by an annular space which is bounded inwardly by a rim of the rotor on which the rows of blading are mounted, the rim rotating with the rotor. The annular space is bounded outwardly by a fixed shroud member to define an annular combustion zone for combustion of fuel introduced into the air from the compression blading. The compression blading is shaped to receive a relative supersonic Mach number air flow
Patent GB-1342152-A (GB)
Title: Gelation of vinyl alcohol polymers
IPC: B01J2/08
Filed: 1971-09-14
Abstract: 1342152 Gelling vinyl alcohol polymers KURARAY CO Ltd 14 Sept 1971 [16 Sept 1970 26 March 1971] 42807/71 Heading C3P Gels of vinyl alcohol polymers are obtained by freezing aqueous solutions thereof to below - 5‹ C. and melting the resultant frozen solution to obtain a highly ordered structure with the water enclosed within micelles of the gelled polymer. The procedure may be carried out in the presence of a fish attractant to produce fishing bait or of a fertilizer or deodorizer to produce a slow release fertilizer or deodorizer composition. The gelling may take place in a non-solvent (for the polymer) which is incompatible with water by adding portions of the aqueous solution to the non-solvent to form globules which sink to the bottom of the non- solvent (by the choice of a non-solvent of appropriate specific gravity) and freezing the globules to cause gelling, followed by thawing. The vessel containing the non-solvent may have hemispherical indentations in its base to assist the production of discrete globules. The gelling desirably takes place in a metal mould having a fish shape, when fishing bait is desired. Other additives may be present in the solution to be gelled, e.g. dyestuffs. In examples aqueous solutions of polyvinyl alcohols of specified polymerization and saponification degrees are gelled according to the above techniques in the presence of a commercial fertilizer or deodorizer or of one or more fish attractants (fish meal, fermented fish oil, a commercial attractant, salmon roe juice, a sardine-mackerel-pike fish powder, squid oil, and minced mackerel or pike) and of blue, yellow or red dyestuffs, aluminium powder, rayon or polyvinyl alcohol fibres and/or kaolinite clay.
Patent GB-890317-A (GB)
Title: Method of making inlays of thermoplastic sheet material on a base sheet of thermoplastic material
Filed: 1960-12-14
Abstract: 890,317. Ornamenting. GENERAL MOTORS CORPORATION. Dec. 14, 1960 [Dec. 28, 1959], No. 42999/60. Addition to 827,349. Class 93 [Also in Groups V and VIII]  A base sheet 62 of thermoplastic material such as polyvinyl chloride is provided with decorative inlays 59, 60 of different colours to that of the base sheet by fixing a sheet 22 of inlay material e.g. polyvinyl chloride or polyvinylidene chloride in frames 32, 24, 26 and pressing the assembly against sheet 62 in a dielectric heating press having electrode platens 10, 12. Platen 10 carries a ribbed die 16 and a blade 18 which contact the softened sheet 22 and force the inlays into the sheet 62. The inlays 59, 60 may be of different colours and the sheet 22 may be a composite one with concentrically arranged portions of different colours. A number of inlays all of different colours may be formed within the perimeter of inlay 59 by suitable adaption of the frames and embossing ribs,
Patent GB-896330-A (GB)
Title: Improvements in carburettors for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M5/10
Filed: 1960-12-14
Abstract: 896,330. Carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. Dec. 14, 1960 [Dec. 15, 1959], No. 43046/60. Class 7(3). In a downdraught carburetter in which the main duct is constituted by three superimposed elements which are separated by heat insulating packings arranged in substantially horizontal planes, the upper element constituting the air intakes and carrying the cover of the constant level chamber the intermediate element containing the device for forming the air fuel mixture and the constant level chamber and the lower element carrying the normal throttle, the device for forming the air-fuel mixture is supported laterally with respect to the intermediate element, so as to dip into the constant level chamber without being in contact with the bottom thereof and so as to open out into the Venturi without being in contact therewith this Venturi being carried by the lower element. The choke tube can either be a single tube or can be double as shown in Fig. 1. It is carried either by the central element 2 or more advantageously by the lower element 3. The projection 25 is thermally insulated from the secondary choke tube 12 by preferably engaging the projection with some play into a slot 27 formed in the choke tube. Fig. 2 shows an acceleration pump of the diaphragm type although it could equally well be of the piston type. According to Fig. 3 the supply of the calibrated orifice 19 is regulated by an altitude responsive connecting device. The pressure which prevails inside the chamber containing the capsule 60 is the same as the pressure which prevails within the chamber 10 since it is transmitted by way of the orifices 55 and the space which is left free by the nature of the construction of the rod 52 and the guide surfaces formed in the member 59. The upper portion of the float chamber has a ventilating device, not shown (which allows it to communicate with the exterior either directly or by way of the air intake of the carburetter) and which causes the portion to be subjected to a pressure substantially equal to atmospheric pressure which thus acts on the outer walls of the capsule 60. The invention covers for example a modification whereby the altitude responsive device would be replaced by a correction device depending on pressure or temperature.
Patent GB-900738-A (GB)
Title: Pilot-operated fluid flow control valve
IPC: F16K31/40
Filed: 1960-12-15
Abstract: 900,738. Valves. AUTOMATIC SWITCH CO. Dec. 15, 1960 [Dec. 16, 1959], No. 43188/60. Class 135. A pilot - controlled valve for controlling fluid flow in either direction therethrough comprises a body 10 having a pair of fluid chambers 23, 24, communicating via a port 22, a valve element 80 in the body adapted to move its front surface 85 in or out of closing relation with the port, the body being provided with a pair of one-way passageways 35, 36 and 45, 46, each communicating between one of the chambers and the rear side of the valve element such as to permit flow only in the direction towards the latter side and thereby urge the valve into its closing position, and pilot means for selectively releasing pressure from the rear side of the valve element in order to allow fluid pressure on the front side thereof to open the valve. The valve element 80 comprises a piston 83 carrying a closure member 85, the space 28 above the piston communicating with the chambers 23, 24 via a solenoid-operated pilot valve 68, passages 70, 71, non-return valves 74, 78 and passages 35, 36 and 45, 46. The chambers 23, 24 also communicate with the space 28 via the passages 35, 36 and 45, 46 and non-return valves 41, 51. In operation, assuming the upstream pressure to be fed into the chamber 23, and with the solenoid-operated valve 68 closed, the fluid passes through the passages 35, 36 and non-return valve 41 into the space 28 thereby maintaining the valve element 80 closed, the pressure from the space 28 being unable to escape due to the non-return valve 51. Upon energization of the solenoid-operated valve 68, the pressure is released via passages 65, 71, non-return valve 78, passages 46, 45, to the down-stream chamber 24, thus permitting the upstream pressure acting on the annular closure surface 85 of the valve 80 to open the latter. Instead of solenoid-operation, the pilot valve may be actuated by the mechanical or hydraulic means.
Patent GB-1111329-A (GB)
Title: Coal plough installations
IPC: E21C35/12
Filed: 1965-10-13
Abstract: 1,111,329. Mineral-mining installations. GEWERKSCHAFT EISENHUTTE WESTFALIA. 13 Oct., 1965 [14 Nov., 1964], No. 43396/65. Heading E1F. In a coal-ploughing installation in which the angular attitude of the plough guide rail with the floor is adjustable through alteration of the vertical position of the couplings of the rail with a series of props forming part of a roof support system, the props are set at a pressure substantially less than that occurring in the rest of the support system to which they are coupled by ram-actuated means that ensures sliding advance of the props over the roof and the floor and therefore advance of the guide rail during the mining away of the face. Five preferred embodiments are described in detail.
Patent GB-1061930-A (GB)
Title: Improvements in or relating to resilient mountings
Inventor: BRAKE WILLIAM ROBERT
IPC: F16F1/40
Filed: 1962-11-16
Abstract: 1,061,930. Resilient mountings. BTR INDUSTRIES Ltd. Nov. 15, 1963 [Nov. 16, 1962], No. 43422/62. Heading F2S. A resilient mounting comprises two end plates 10, 12 connected by a pad 15, 16 of elastomeric material which is reinforced by one or more intermediate plates 17 whose median plane or planes lie in a plane or planes generally parallel to the planes of the end plates. At least one of the end plates provides or, is associated with stop means, e.g. extensions 18, 19, engaged with or engageable by part of the depth of one of the sides of the pad when the pad is subjected to shear strain. In the construction shown the pads are cut away at 20, 21. In a modification (Fig. 3, not shown) the pads are completely cut away from the extensions 18, 19. Further only one plate may be provided with extensions over the whole areas of which the pad is affixed. The intermediate plate is completely embedded except for its ends in the pad (Fig. 4, not shown). In a further embodiment pads which are cut away completely from the extensions 18, 19 are provided with a corrugated intermediate plate (Fig. 5, not shown). The intermediate plate, or plates may be of dishshaped or chevron cross-section and be formed with apertures through which the pad material  penetrates. The mounting may also be in the form of a stack of pads, and intermediate plates.
Patent GB-1478292-A (GB)
Title: Head-up display optical devices
IPC: G02B27/00
Filed: 1974-05-31
Abstract: 1478292 Head-up displays S M ELLIS 31 May 1974 [31 May 1973 7 July 1973 3 Nov 1973 28 Nov 1973] 43456/76 43457/76  43458/76 and 43459/76 Divided out of 1478291 Heading G2J The description is identical to that of the parent Specification 1478291 but the claims relate to the beam combining prism arrangement.
Patent GB-968721-A (GB)
Title: Improvements in or relating to aerials
Inventor: WOLOSZCZUK EDMUND WERGILIUSZ
IPC: H01Q11/10
Filed: 1961-12-05
Abstract: 968,721. Aerials. MARCONI CO. Ltd. Oct. 11, 1962 [Dec. 5, 1961], No. 43481/61. Heading H4A. Each aerial element forming a resonant aerial element in a multi-element aerial system, particularly a logarithmic array (as shown), comprises a folded portion F consisting of a length of conductor bent back upon itself and an unfolded portion U connected to the folded portion to lie in the position shown. The length of the unfolded portion U is approximately #/8, where X is the wavelength at which the folded portion is resonant. The overall length of the element is between #/4 and #/2. The element is said to give a greater band width and to be of a lower Q than conventional linear or folded dipoles. Specifications 884,889 and 953,805 are referred to.
Patent GB-1160750-A (GB)
Title: Improvements in and relating to a Fluid-Tigh Connecting Device
Inventor: LETOFFE LUCIEN
IPC: F16K1/50
Filed: 1967-09-25
Abstract: 1,160,750. Pipe joints; valves. COMMISSARIAT A L'ENERGIE ATOMIQUE. 25 Sept., 1967 [30 Sept., 1966], No. 43534/67. Headings F2G and F2V. A valved pipe joint for two ducts 1, 2 traversed by a dangerous, e.g. radioactive, fluid comprises a valve casing 4, a rod 8 which is axially movable, e.g. by a hand wheel 14 and threaded portion 11 co-operating with a threaded bore in casing cap 12, to position a valve member 9 in relation to a seat 10, a metal bellows 18 surrounding the rod 8 and sealed to both the easing and the valve member, and two blocks 22, 23, the former of which locates a plane face of the valve casing against a yoke 3 which is common to the ducts 1, 2, to align these ducts with passageways 5, 6 in the valve casing, whilst the latter block is acted on by a screw 26 to urge the faces of the casing and yoke towards each other, sealing of the butt joint thus formed being effected by 0-rings 27. To guard against the bellows being perforated, packing 13 is provided between rod 8 and the casing, and a tube 19 communicates the space below the packing with a drip tray 20. Handwheel 14 and the head of the screw 26 are accessible from the exterior of a concrete enclosure 16 having a removable cover 17 to which the valve casing and rod 8 are assembled prior to being lowered into the interior 15 of the enclosure to position them with the ducts 1, 2 in register with the passageways 5, 6, after which the screw 26 is rotated to seal the joint.