baber/WOPTO huggingface dataset:
Patent GB-984684-A (GB)
Title: Structural elements
IPC: E01D2/04
Filed: 1962-05-11
Abstract: 984,684. Reinforced concrete beams. BETEILIGUNGS UND PATENTVERWALTUNGSGESELLSCHAFT m.b.H. May 11, 1962 [May 13,1961; Jan. 27, 1962], No. 48159/63. Divided out of 984,683. Heading E1V. A structural element comprises a pre-stressed reinforced concrete upper chord plate 1 connected to a lower chord 2 or chords by inclined members 3 transmitting shear forces in all directions. The inclined members may be struts 3 extending in groups of four from common top and bottom points 4 and 5, or may be triangular plates connected by their apices 11 and bases 13, 14 to the upper or lower chords. Alternatively the inclined members may be plates 26 and the lower chord members may be of various section rods or tubes 27, 28, 29 arranged longitudinally, transversely or obliquely of the element. The lower part of the element may be cased and may carry service pipes or wires.
Patent GB-1527775-A (GB)
Title: Pressure control valve
IPC: F16K15/02
Filed: 1975-11-24
Abstract: 1527775 Valves ACTROL INDUSTRIES PTY Ltd 24 Nov 1975 48243/75 Heading F2V A pressure control valve has a seat 17 between an inlet 11 and outlet 12, closable by a valve member 32 which forms part of a valve assembly extending through the seat and including a piston 23 and a guided head portion 31 disposed on either side of the valve member, there being a loading spring 24 tending to unseat the valve member. The assembly is pressure balanced with regard to inlet pressure and its effective area subject to outlet pressure is equal to the seat opening. The valve is for use in storage hot water units where inlet pressure varies. Operating pressure is set by a spring adjusting screw 25. When the pressure falls to the set value the valve will open on demand. If, however, the supply pressure is greater than that set, the valve effects a pressure reduction. An inlet filter 33 may be fitted.
Patent GB-1507739-A (GB)
Title: Capsules
IPC: B01J13/18
Filed: 1975-11-26
Abstract: 1507739 Encapsulation WIGGINS TEAPE Ltd 4 Nov 1976 [26 Nov 1975] 48616/75 Heading B8C A method of encapsulating finely divided particulate material comprises forming a dispersion of particulate material in an aqueous medium containing a water-soluble melamine formaldehyde precondensate, a water soluble urea formaldehyde precondensate and a watersoluble polymer which is capable of being crosslinked by said precondensates and condensing the precondensates by acid catalysts with resultant cross-linking of said polymer about said particulate material, thereby to form a polymeric shell around the particulate material. The polymer may be a cellulose derivative, starch, a starch derivative, a polyacid, a poly ester, a polyanhydride copolymer, a polyacrylamide or a polyacrylamide copolymer. The polymer is preferably ionic, e.g. anionic, and the urea formaldehyde precondensate is suitably cationic.
Patent GB-1397855-A (GB)
Title: Burnishing device
IPC: B24B39/04
Filed: 1973-10-18
Abstract: 1397855 Burnishing COGSDILL TOOL PRODUCTS Inc 18 Oct 1973 [10 Nov 1972] 48668/73 Heading B3X A burnishing tool comprises bearing means 14 for supporting a head 13 for swinging movement on a spindle 12, a plurality of burnishing rollers 27 disposed on the surface of a truncated cone 28 at the end of the head, a rotatable work support 30 for supporting a workpiece 29 having a spherical area 31 to be burnished in cross axis relation to the tool spindle 12 providing point contact between the rollers and the surface of the spherical area, and drive means for driving both the spindle and the work support in rotation. The bearing means 14 consists of a hollow ball section 15 which is mounted on the spindle 12 and engages a mating surface on a ring 16 in a bushing 17 fixed in a housing 18. A retainer 21 has a screw thread connection 22 with the housing for retaining a support 19 having an internal conical surface 28 engaged by the cylindrical rollers 27 in a cage 26. A flange 23 on the spindle 12 has an aperture 24 for receiving a pin 25 on the housing 18, and an 0-ring 61 is disposed between the flange and housing to resiliently retain the head and spindle 12 in alignment. The workpiece 29, such as a bevel gear, is mounted on the support 30 which is rotated in the opposite direction to that of the spindle 12 and head 13 so that its spherical surface 31 is burnished by the rollers 27. In another embodiment for burnishing a ball on a stud, the axes of the rollers are at approximately 25 degrees to the axis of the spindle 12 and the support driving the stud is at approximately 110 degrees to the axis of the spindle 12. The cage supporting the rollers is retained on the cam by a split ring on the cage disposed behind a washer on the cam. In a further embodiment for burnishing a tapered arcuate element, the support for the element is swung about a transverse axis as it is rotated.
Patent GB-965357-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J1/00
Filed: 1962-12-27
Abstract: The invention comprises compounds of the general formula: <FORM:0965357/C1/1> wherein R and R1 are alkanoyl radicals of the general formula -CO- alkyl, wherein the alkyl portion contains less than 7 carbon atoms and a process for the preparation thereof which comprises contacting a compound of the general formula: <FORM:0965357/C1/2> wherein one of R11 and R111 is a hydrogen atom and the other is a hydrogen atom or a -CO- alkyl radical, with an acylating agent, e.g. an alkanoic acid anhydride or chloride.
Patent GB-1073128-A (GB)
Title: Mould flasks
IPC: B22C21/00
Filed: 1965-11-17
Abstract: 1,073,128. Mould flasks. GRAVE G.m.b.H. Nov. 17, 1965 [Nov. 28, 1964], No. 48786/65. Heading B3F. A double-walled moulded flask 1 is provided with inclined inner surfaces 1<SP>1</SP> and comprises. horizontally, movable members 2 for holding and releasing sand compressed in the flask. The members 2 are fluid actuated and are each guided for movement in respective side of the inner wall of the flask. The flask is provided with centring bushes or pins and the inner faces of the inner wall are polished.
Patent GB-1368472-A (GB)
Title: Internal combustion engine having means for reducing the emission of unburned products with the exhaust gases
IPC: F02M3/045
Filed: 1971-10-21
Abstract: 1368472 Regulating I C engine fuel and air supply; recirculating exhaust gases ALFA ROMEO SpA 21 Oct 1971 [24 Oct 1970] 49078/71 Heading F1B With the throttle valve 2 closed and the engine speed above a predetermined value the flow of air through a by-pass 4 around the throttle valve and the injection of fuel are cut-off. In the embodiment shown a solenoid 23 is energized to move the valve 21 to close the by-pass 4 when a switch 40, closed when the valve 2 is closed, is closed simultaneously with a switch 39 closed when a predetermined vacuum in the intake duct 12 is exceeded. Means for cutting off the fuel injection is operated simultaneously with energization of the solenoid 23. When the valve 21 closes the by-pass 4 it opens an exhaust gas recirculation duct 17, 19 containing a gas and liquid cyclone filter 27. The calibrated port 5 restricts the amount of exhaust gas recirculation. In another embodiment, Fig. 1 (not shown) a needle valve (6, 7) operated by a solenoid (8), closes the by-pass 4 when a throttle position responsive switch (32) and a switch (33), operated by a device (28) receiving a signal which is function of engine speed, are closed simultaneously.
Patent GB-1332507-A (GB)
Title: Housing for a freewheel clutch
IPC: F16D41/067
Filed: 1970-10-19
Abstract: 1332507 Ratchet clutches W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER OHG] 19 Oct 1970 [18 Oct 1969] 49597/70 Heading F2C A wedging roller assembly for a one-way clutch comprises rollers 3 held in engagement with wedging recesses (2) in the inner periphery of a pressed sheet metal outer race 1 by pro. jections 6 integral with the race 1. Radially inwardly directed flanges 5, 7 limit axial movement of the rollers and the flange 5 has integral projections 6 which engage between the rollers 3. Springs 4 bias the rollers towards a wedging position. In Figs. 3-6 (not shown) the projections are stamped out of the outer race.
Patent GB-1123217-A (GB)
Title: Improvements in or relating to recirculating heating plants
IPC: C21D1/767
Filed: 1965-11-23
Abstract: 1,123,217. Heating fluids by friction; heating by circulation of hot air. D. M. MITIN, P. I. TEVIS, V. N. KOSTOCHKIN, V. A. ANANIEV, and V. M. KRUIKOV. 23 Nov., 1965, No. 49630/65. Heading F4U. Air for heating articles in a working chamber 1 is circulated through insulated inlet and exhaust ducts 2, 3 by a centrifugal fan 4 driven by motor 5, the blades of the impeller of the fan (Fig. 2, not shown) being so shaped as to cause heating of the air as it circulates. In modifications the fan may be mounted in the working chamber (Fig. 3, not shown), or used to circulate and heat air for heating buildings (Fig. 4, not shown). The fan which has blades with an inlet angle of 145-155 degrees and an outlet angle of 20-25 degrees may be a multi-stage fan (Fig. 5, not shown), and be equipped with a temperature control device (Fig. 6, not shown) actuated by the temperature of the working chamber to vary the temperature of the air circulated by the fan by varying the working width of its blades. Alternatively temperature control may be effected by varying the rate of fan rotation, reversing the direction of rotation, or by periodic switching on and off of the fan.
Patent GB-1462752-A (GB)
Title: Building blocks especially for children
IPC: A63H33/08
Filed: 1972-10-27
Abstract: 1462752 Educational building blocks E S PERRY Ltd 28 Jan 1974 [27 Oct 1972] 49783/72 Addition to 1376301 Heading G5G [Also in Division A6] Children's bricks, for use as toys, or for educational purposes, having a general similarity to those of Specification 1,376,301 and each with at least one spigot of rectangular or square crosssection for insertion into a correspondingly shaped socket in another brick, are provided with at least two plane faces. Each brick may also have more than one spigot. Two plane faces on a brick may either be on opposite or adjacent sides of the brick. Writing or designs may be provided on each plane face of each brick. The bricks may be moulded from a plastics as described in Specification 1,376,301.
Patent GB-1408819-A (GB)
Title: Process for emulsion-polymerization of butadiene
IPC: C08F36/04
Filed: 1973-10-29
Abstract: 1408819 Polymerizing dienes SOC ITALIANA RESINE SIR SpA 29 Oct 1973 [30 Nov 1972] 50265/73 Heading C3P Butadiene is polymerized in aqueous emulsion in the presence of emulsifier, dispersing agent, initiator and chain transfer agent wherein (a) in a first stage polymerization is carried out in a phase separate from polymer being formed, (b) in an intermediate stage, monomer is added incrementally in amounts such that immediately after each addition the conversion is at least 45% and (c) in a final stage the reaction is completed. The products are low viscosity, gelfree latices having solids contents above 40% and a number average particle size of at least 1800 A. They are suitable for producing ABS graft polymers.
Patent GB-1453608-A (GB)
Title: Calculators
IPC: G06F15/02
Filed: 1973-12-20
Abstract: 1453608 Calculators HEWLETT-PACKARD CO 20 Dec 1973 [26 Dec 1972] 50310/74 Divided out of 1453607 Heading G4A The description forms part of that of parent Specification 1,453,607, but the claims are directed to a calculator having a keyboard with data and command keys each associated with a different mnemonic code, a memory for storing microprogram routines and subroutines, a read-only memory storing mnemonic codes representing programs using keyboard data and commands, a processor responsive to a command key or the mnemonic code associated with a command key to execute stored routines or subroutines and an output unit to give an indication of the result of executed commands.
Patent GB-1173975-A (GB)
Title: Fuel Compositions
Inventor: HOLLOWOOD JOHN
IPC: C10L1/198
Filed: 1967-11-10
Abstract: 1,173,975. Acyl- and alkyl-phenols. ESSO RESEARCH & ENG. CO. 10 Nov., 1967, No. 51237/67. Heading C2C. [Also in Divisions C3 and C5] p-Tetracosanoyl phenol is prepared by passing nitrogen through a stirred, heated (90‹ C.) mixture of phenol, tetracosanoic acid and boron trifluoride etherate for eight hours, allowing the mixture to stand before pouring into ice/water, filtering, washing with water and drying. p-Behenoyl phenol is prepared as above using behenic acid. C 18 -C 30  + alkyl phenols are prepared by heating to 190‹ C. a mixture of phenol, a mixture of C 18 -C 80  + olefins and a clay catalyst, filtering, washing with water and drying.
Patent GB-1110537-A (GB)
Title: Polyester compositions
Inventor: SARGENT EDWARD HENRY GEORGE
IPC: C08G63/54
Filed: 1965-12-02
Abstract: A polyester composition is formed by a method comprising cross-linking an unsaturated polyester resin containing free hydroxyl groups with a monoethylenically unsaturated cross linking agent, wherein there is reacted with the resin before or during cross-linking from 3-5% by weight based on the weight of polyester resin and cross-linking agent of an alkyl, aryl or alkaryl di- or tri-isocyanate, the amount of isocyanate used being equivalent to the free hydroxyl groups in the unsaturated resin.  Specified isocyanates are 1,4-toluene diisocyanate and diphenyl methane diisocyanate.  In the example, a polyester prepared from isophthalic acid, maleic anhydride and propylene glycol is dissolved in styrene, reacted with 1,4-toluene diisocyanate and cross-linked using methyl ethyl ketone peroxide and cobalt octoate.
Patent GB-1492187-A (GB)
Title: Switches for example controllable rectifiers and circuits for supplying control signals for controlling the switche
IPC: H02M1/08
Filed: 1974-11-27
Abstract: 1492187 Controlling thyristors SIEMENS AG 27 Nov 1974 [3 Dec 1973] 51507/74 Heading H2F [Also in Division H3] A circuit to supply firing signals to a switch, for example a controllable rectifier 2, to fire it, comprising the primary 6 of a transformer 5 connected between two connecting members for respective connection to the anode and cathode of the switch and the path through the primary including resistance, rectifying means 8 connected to the secondary 7 of the transformer, a capacitor 10 charged by the direct current from the rectifying means and a contact-less switch to discharge the capacitor to form a firing signal at an output of the circuit, and a second capacitor 15 connected in parallel with the transformer input winding. The rectifying means 8 may be a full wave rectifier as shown, or a bridge (Fig. 2, not shown). The transformer may have a non-magnetic core, a core of magnetic material preferably with an air gap or with a shallow magnetization curve. A capacitor 4 may be connected in series with the primary, the resistance 3 may consist of the lead resistance of the capacitor 4. The transformer turns ratio preferably lies in the range of 1 : 1 to 20 : 1, or more particularly 10 : 1. The contact-less switch may be a light sensitive switch such as a phototransistor 12 or a photothyristor (12a, Fig. 2, not shown). A voltage limiting device such as a Zener diode 11 or varistor (11a, Fig. 2) may be connected across the capacitor 10.
Patent GB-1041120-A (GB)
Title: Improvements in method and means for grinding, drying, coating, mixing and chemically treating solids
IPC: B02C19/06
Filed: 1964-12-18
Abstract: 1,041,120. Drying apparatus. FLUID ENERGY PROCESSING & EQUIPMENT CO. Dec. 18,1964 [Jan. 2, 1964], No. 51575/64. Heading F4G. [Also in Divisions B1 and B2] Apparatus 10 for grinding and drying solid particles comprises a first chamber 14 having a solid particle inlet 40 and a fluid inlet leading into it, tangentially arranged to direct fluid streams against each other to form a vortex, a second chamber 22 connected to the first having a second fluid inlet including nozzles 48 similarly arranged to form a vortex, means 24 to centrifugally separate particles from the vortex fluid, and means 28, 30 to collect the particles. As described, the fluid inlet to the first chamber 14 comprises an annular manifold 32 having tangential nozzles 34, and particle feed is effected by fluid pressure through a duct 43, or e.g. by a screw feeder. In operation, silica gel to be ground and dehydrated is fed into the chamber 14 and impacted in a vortex of superheated steam. The particles rise in the chamber 14 and during their travel through a chamber 12 the steam temperature drops; steam being withdrawn via a duct 50. The particles are then carried into an annular passage 16 and via a chamber 18 into the chamber 22, in which very hot low-pressure air is injected via the inlets 48 to dry the particles. Light dry particles are drawn down into the separating chamber 24. Residual steam and air are withdrawn via a duct 52, and the dry particles removed through a valve 30. A bleeder valve 56 destroys the vortex entering the chamber 28 via an opening 26 and any returning particles are collected in a bag 58. Exhaust ducts 50, 52 may be terminated in filter bags, or a single bag, and the duct may include an exhaust fan to prevent steam flowing back into the chamber 22.
Patent GB-1410339-A (GB)
Title: Process for the preparation of amides
IPC: C07K1/08
Filed: 1972-11-10
Abstract: 1410339 Peptides SUMITOMO CHEMICAL CO Ltd 10 Nov 1972 [12 Nov 1971 (2) 22 Nov 1971 19 Feb 1972] 52070/72 Heading C3H [Also in Division C2] Peptides are prepared by reacting amino acids of the formula R<SP>1</SP>COOH with amines of the formula R<SP>1</SP>R<SP>2</SP>NH, wherein, prior to the reaction, either the acids or the amines are activated by contact with phosphonium salts obtained by reacting esters or monoester salts of phosphorous acid with organic bases and oxidizing agents, and wherein R<SP>1</SP> is an aliphatic hydrocarbon group or an aromatic hydrocarbon group, the hydrocarbon groups being substituted by at least one protected amino group and optionally by at least one hydroxy or mercapto group, which has been protected prior to the activation or by a carbonyl or nitro group or by halogen atoms; R<SP>2</SP> and R<SP>3</SP> each are H or an aliphatic or cycloaliphatic hydrocarbon group or an aromatic hydrocarbon group, not more than one of R<SP>2</SP> and R<SP>3</SP> being H, the hydrocarbon group or groups being substituted by at least one protected carboxy group and optionally by at least one hydroxy or mercapto group which has been protected prior to the activation, or by a carbonyl or nitro group.
Patent GB-1125938-A (GB)
Title: Apparatus for detecting failures of nuclear fuel elements
IPC: G21C17/04
Filed: 1965-12-08
Abstract: 1,125,938. Reactors. NIHON GENSHIRYOKU KENKYU-SHO. 8 Dec., 1965 [14 Dec., 1964], No. 52149/65. Heading G6C. Apparatus for detecting failures of nuclear fuel elements in a nuclear reactor comprises a first column filled with a molecular sieve M.S. -13X and adapted to receive a sample of gases from the interior of the reactor, which gases include, in the event of a nuclear fuel element failure, radioactive A, Kr and Xe produced as a result of the failure, the column serving to deliver separately with a definite time interval therebetween an A-Kr mixture and Xe, a second column filled with a molecular sieve M.S.-5A or activated charcoal and adapted to receive a further sample of said gases and to deliver separately A and Kr with a definite time interval therebetween, and detector means for measuring the radioactivity of the said mixture and of the individual gases as separately delivered by the columns. Since all the Kr and Xe occurring in a reactor are fission products of U-235, any fuel element failure can be detected with considerable accuracy, by detection of such Kr and Xe, without being influenced by the presence of any other radioactive nuclides.
Patent GB-1203650-A (GB)
Title: Quinazolinones
Inventor: OTT HANS
IPC: C07D239/82
Filed: 1967-11-16
Abstract: 1,203,650. Quinazolinones. SANDOZ Ltd. 16 Nov., 1967 [4 Oct., 1967], No. 52253/67. Addition to 1,195,066. Heading C2C. Novel compounds of Formula Ia in which R is H, F, Cl or Br; X is a C 3-5  branched alkyl radical, the branching occurring in the carbon atom attached to the ring nitrogen atom other than a tertiary such alkyl radical in which the tertiary C is directly attached to the N of the quinazolinone ring; R 2  is a phenyl radical optionally substituted by Y and Y 1 , Y being F, Cl, Br,-OH, C 1-4  alkyl or alkoxy or -CF 3  and Y 1  being H, F, Cl, Br, OH, C 1-4  alkyl or alkoxy; are prepared by reacting a compound of Formula IIa with a C 1-5  alkyl carbamate in the presence of a Lewis acid catalyst at a temperature of at least 140 C.
Patent GB-1438701-A (GB)
Title: Electrodeposition of tin lead and tin-lead alloys
IPC: C25D3/36
Filed: 1973-11-13
Abstract: 1438701 Electro-depositing bright tin, lead or an alloy thereof LEA-RONAL Inc 13 Nov 1973 [17 Nov 1972] 52680/73 Heading C7B An alloy of bright Sn-Pb is electro-deposited from an aqueous acid bath e.g. based on borofluoride, sulphamate or silicofluoride, containing bath-soluble Pb and Su compounds together with (a) an ethylene or propylene oxide condensation product (b) at least one compound of Formula wherein R 1 , R 2 , R 3 , R 4 , R 5  are independently H, halogen, hydroxy, C 1-6  alkyl, (C n H 2n ) COOH (n=0 to 6) or carbamide, or R4 and Rs together form a divalent radical to give a compound of Formula wherein R 6  is absent or OH; and Z is absent, 0 or a quateraizing radical; provided that when Z is absent at least one of R 1  to R 5  is other than H or R6 is OH. Long lists of components (a) and (b) are given, examples being (a) nonyl phenol or lauryl amine condensed with ethylene oxide and (b) α- picolinic acid, and pyridine N-oxide. Other components may include HCHO, Na octyl sulphate or an aromatic aldehyde (list given) e.g. o-hydroxy (or chloro)-benzaldehyde. The bath disclosed contains Sn(BF 4 ) 2 , Pb(BF 4 ) 2 , HBF 4  and H 3 BO 3  and may be operated at 0À5-80ASF. Lead or tin may be singly plated from a bath as above in which (b) is a pyridine or picolinic acid and which also contains an alkyl ether of o-hydroxybenzaldehyde.
Patent GB-1125770-A (GB)
Title: Improved polyamide compositions
Inventor: GRICE KENNETH DARLING
IPC: C08K3/32
Filed: 1964-12-30
Abstract: 1,125,770. Stabilized polyamides. BRITISH CELANESE Ltd. 29 Dec., 1965 [30 Dec., 1964], No. 52789/64. Heading C3R. A polyamide is stabilized by incorporating a manganous compound and an amide of phosphoric or a polyphosphoric acid. A hypophosphite may also be present. Manganous compounds specified include MnCl 2 . 0À01-0À02% may be used. Phosphorus compounds specified are hexamethylphosphoramide, an amido-polyphosphate, Ca(H 2 PO 2 ) 2 , Mg(H 2 PO 2 ) 2 , NaH 2 PO 2  and NH 4 H 2 PO 2 . They may be present in quantities such that 2-4 atoms of phosphorus are present per atom of manganese. In examples, #-caprolactam is polymerized in the presence of the stabilizers using adipic acid as initiator. The products are made into fibres.