baber/WOPTO huggingface dataset:
Patent GB-1146446-A (GB)
Title: A method of suppressing bitterness in artificial sweetening ingredients
Inventor: KOTAKU SABURO
IPC: A23L27/30
Filed: 1966-04-21
Abstract: 1,146,446. Artificial sweeteners. TAKEDA CHEMICAL INDUSTRIES Ltd. 21 April, 1966, No. 17581/66. Heading A2B. Sweetening compositions contain an artificial sweetening agent and a 5<SP>1</SP>-purine nucleotide in a ratio by weight of from 1 : 0.5 to 1 : 0.0002. The nucleotide, which serves to suppress bitter off-flavours, may be for example 5<SP>1</SP>-adenylic acid, 5<SP>1</SP>-guanylic acid, 5<SP>1</SP>-inosinic acid, 5<SP>1</SP>-deoxyinosinic acid, 5<SP>1</SP>-deoxyguanylic acid, their non- toxic salts, and mixtures thereof. The artificial sweetening may be sodium or calcium cyclohexylsulfamate, saccharin, sodium saccharin, dulcin, or mixtures thereof with other materials such as diluents and other sweetenings, for example sorbitol, mannitol, carboxymethyl cellulose, gelatin, and glucose.
Patent GB-772868-A (GB)
Title: Improvements in or relating to roof supporting appliances for mines and the like
IPC: E21D23/00
Filed: 1953-06-25
Abstract: 772,868. Mine roof supports. GULLICK Ltd., and SEAMAN, T. Aug. 23, 1954 [June 25, 1953], No. 17609/53. Class 20(2) In a hydraulic roof support having two relatively movable roof supporting structures 10, 11, coupled together by a double acting hydraulic ram 12 operable to alternately push and pull, respectively, the leading structure 11 and the trailing structure 10 to move the support from one roof supporting position to another, the trailing structure 10 consists of a base or skid 13 carrying four hydraulic pit props 15, one pair on each side, and a roof engaging structure or canopy 16 mounted on the props and including a pair of spaced apart members 16a, and the leading structure 11 consists of an elongated foot or skid 17 slidable into the base 13 between the pairs of props 15 and having thereon one or more hydraulic props 19 provided with a roof supporting girder or headpiece 18 movable longitudinally between the members 16a. In a further modification the roof engaging structure of the trailing section includes a pair of forwardly extending girders 31, Fig. 5, which are adapted to be supported, near their forward ends, by wedges 38 upon a crosshead 37 supported by the props 34 of the leading structure. Specifications 720,361 and 767,501 [Group XXXVII] are referred to.
Patent GB-675865-A (GB)
Title: Improvements in or relating to fluid-pressure operated valve devices
IPC: F16K31/40
Filed: 1949-07-04
Abstract: 675,865. Valves controlled by auxiliary valves. UNITED AIRCRAFT PRODUCTS, Inc. July 4, 1949, No. 17633/49. Class 135. A fluid-actuated valve controlling the supply of steam to an aircraft gas turbine for starting purposes when on the ground comprises an open-ended tubular casing 11 formed at one end with a seat 16 coacting with a valve member 17 connected by a stem 27 to a piston 26 slidable in the casing and closed at its other end by a cap 34 mounting a solenoid 39 whose core 42 formed with a stem 48 actuates a pilot-valve 38 controlling an axial passage 36 through the piston, stem and valve member. The casing 11 is mounted in a part 12 of the turbine installation having chambers 13, 14 communicating with an external source of pressure steam and with the turbine respectively. The valve 17 loaded by a spring 24 is formed with a skirt 18 slidable in a looselymounted sleeve 19 housing a spring abutment disc 23 having a hole to connect the chamber 13 with the passage 36. On the closing of a switch, the solenoid 39 is energized whence its core 42 is moved to the left to permit the opening of the pilot-valve 38 and steam to pass to a space 35 behind the piston 26. The piston 26 then moves to the right to unseat the valve 17 to connect the chambers 13, 14 through ports 15 to supply steam to the turbine. On breaking the switch, a spring 47 moves the core 42 and the pilot-valve 38 to the right to close the passage 36, steam in the space 35 then escaping between the piston 26 and the casing 11 and through ports 51 to the atmosphere whilst the spring 24 seats the valve 17.
Patent GB-283127-A (GB)
Title: Improvements in or relating to spools
IPC: D21J3/00
Filed: 1927-07-02
Abstract: 283,127. Ledeboer, A. L. H. Jan. 4, 1927, [Convention date]. Bobbins, spools, &c.-A bobbin or spool of felted cellulose fibre having integral end flanges and an axial hole 27, Fig. 6, is manufactured from wood or paper pulp, a cylindrical blank first being formed between dies 12, 13, Fig. 10, and the completed spool between dies 28, 29 and plungers 38, 39, Fig. 13. The fibres in the intermediate portion extend generally in the axial direction, while the fibres of the surface layers are arranged substantially parallel to the adjacent surface. Binding or filling materials may be added during manufacture.
Patent GB-663945-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: E03D3/06
Filed: 1948-07-01
Abstract: 663,945. Flushing valves. TIPPING, W. F. July 5, 1949 [July 1, 1948 ; Oct. 14, 1948], Nos. 17721/48 and 26721/48. Class 135. A flushing valve for supplying a flow of predetermined duration comprises a casing 11 with an inlet 12 and an outlet 13, a closure member 14 attached to a spring bellows 18 and seating on a ridge 16, and an operating plunger 21 which, when depressed, collapses the bellows and unseats the member 14. The bellows communicates with the casing through holes 33 controlled by a valve 34 which opens during collapse of the bellows, and through a variable restriction 39 which times the expansion of the bellows and hence the duration of flow. The plunger acts on the bellows through a lever 24 which abuts a piston 42 in a cylinder 40 attached to the bellows. The cylinder communicates with the interior of the bellows through a restriction 41 and thus, if the plunger is held down, the cylinder can move down over the piston to seat the member 14. In a modification, the bellows communicates with the atmosphere via a check valve and a variable restriction, and the piston and cylinder are replaced by a mechanical trip mechanism.
Patent GB-1468508-A (GB)
Title: Engine cooling system
IPC: F02F1/40
Filed: 1973-04-12
Abstract: 1468508 Engine cooling system PERKINS ENGINES Ltd 9 April 1974 [12 April 1973] 17742/73 Heading F1B A liquid cooled internal combustion engine incorporates a cylinder head 12, at least one air passage terminating in an inlet valve seat (64), Fig. 3, (not shown), at least one exhaust gas passage terminating at an exhaust valve seat (66), first and second coolant chambers 32, 34 respectively, the first of the chambers 32 being in the form of a gallery, wherein a coolant passage 42 joining the two chambers is arranged to pass through a bridge between the air and exhaust gas passages so as to cool the metal of the cylinder head between the inlet and exhaust valve seats. The jet of coolant issuing from the passage 42 may be directed at a combustion chamber 52 or a fuel injector Fig. 6, (not shown). The coolant is fed into the engine by a pump (17), Fig. 1, (not shown) splitting the flow into two streams entering third and fourth chambers 20, 26 respectively, from which it passes through ports 22, 36 and 24, 28, 38 to the first and second chambers 32 and 34. The latter chambers are connected by the passages 42 in the bridge between the inlet and exhaust valves. Only the second chamber is connected to the coolant outlet.
Patent GB-376925-A (GB)
Title: Process for the manufacture of di-alkyl sulphates from olefines
IPC: C07C303/24
Filed: 1931-06-18
Abstract: Dialkyl sulphates are manufactured by intimately contacting straight chain olefines containing at least four carbon atoms in the molecule with concentrated sulphuric acid, preferably of 90-100 per cent, at least two molecules of olefines being present per molecule of sulphuric acid throughout the reaction.  Any iso-olefines present may be previously removed by treatment with sulphuric acid of about 65-70 per cent.  The process is particularly described with regard to the production of dibutyl sulphate, which is obtained by contacting 1- or 2-butene with 90-100 per cent sulphuric acid.  If more dilute acid is employed, appreciable quantities of butyl hydrogen sulphate are formed.  To ensure that at least two molecules of butene are present per molecule of sulphuric acid it is preferable to employ liquid butene and to agitate it violently with the acid, the process being carried out under sufficient pressure to keep the butene liquid, and at temperatures preferably not exceeding 30 DEG  C. Alternatively the acid may be sprayed into the gaseous butene or injected into the liquid butene in minute streams.  Instead of pure 1- or 2-butene there may be used the fraction containing butenes and butane obtained by liquefaction and fractional distillation of the gases from a petroleum cracking plant, the isobutene and other iso-olefines being previously removed by means of 65-70 per cent sulphuric acid, or by the use of a polymerizing agent such as fuller's earth.  The dibutyl sulphate may be used for further reactions, e.g. it may be hydrolysed to secondary butyl alcohol or ether, or may be employed as an alkylating agent. The preparation of diamyl sulphate from 2-pentene is also referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of any olefines containing at least four carbon atoms, and contains also a reference to the manufacture of dialkyl sulphates from lower olefines, e.g. diethyl and dipropyl sulphates, by passing the olefine directly into 90-100 per cent sulphuric acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1367192-A (GB)
Title: Method ofr producing homo-or copolymers of ethylene
IPC: C08F10/02
Filed: 1972-04-18
Abstract: 1367192 Organoaluminium compounds ASAHI KASEI KOGYO KK 18 April 1972 17792/72 Heading C2J [Also in Division C3] (C 2 H 5 ) 2À40 Al(OC 2 H 5 ) 0À60  is prepared by reacting triethyl aluminium, triethoxyaluminium in npentane, followed by reduced pressure distillation of the n-pentane (Example 1). A wide variety of analogous aluminium compounds containing up to 0À98 hydrocarbyloxy radicals per aluminium atom, and in some cases mixed hydrocarbyl groups, are specified and stated to be obtained in like manner.
Patent GB-813285-A (GB)
Title: Improvements in electric circuit arrangements for supplying a load with alternating current
Inventor: CROWTHER GERALD OFFLEY
IPC: B23K11/24
Filed: 1956-06-08
Abstract: 813,285. Switching systems for resistance welders. MULLARD RADIO VALVE CO. Ltd. June 8, 1956, No. 17797/56. Class 38 (4). A circuit arrangement for supplying a load, such as a spot welding apparatus, with current of a predetermined strength for a predetermined number of cycles of the alternating current supply comprises a cold-cathode counter tube V1 for controlling the number of cycles for which the current flows, a phase-shifting circuit 6, 7 for controlling the strength of the current and a pair of reverse-parallel connected thyratrons V3, V4 to cause current to flow in the load T3. With a switch S2 in the position shown in Fig. 1 and phase-displaced voltages applied to guide electrodes G1, G2 of the counter tube V1 the discharge travels around the tube continuously so that, with a switch S1  in the position shown with cathodes K2, K3, K4 connected to a common negative point 5 by way of a resistor 12 and a bias source 16, three consecutive positive-going pulses will appear at the grid of a valve V2. Valve V2 however remains non-conductive due to a positive bias on its cathode. Operation of the switch S2 now reduces to zero the potential at the junction of resistors 15, 29 and at the same time applies a strong negative pulse through a network 24, 25, 26 to the cathode K1 of the tube V1 causing the discharge in the tube to return to cathode K1 irrespective of its position. The discharge now commences to re-circulate and, with switch S1  in the position shown, the first three cycles of the supply will cause three positive-going pulses to appear on the grid of valve V2 each of which will cause the valve to conduct whereby pulses will appear across the secondary windings 18, 19 of a transformer T2 so that thyratrons V3, V4 pass current through the load T3 for three cycles of the supply. At the end of the third cycle the discharge continues to travel around the tube V1 until it reaches cathode K9 but no more pulses are applied to the grid of the valve V2. The number of cycles during which current flows in the load is determined by the position of the switch S1, and the current strength, i.e. the conduction point of the thyratrons V3, V4, is controlled by the phase-shift circuit 6, 7 which can be of any suitable composition. Fig. 3 shows an arrangement of plug and jack connections to the counter tube cathodes whereby current may be caused to flow in the load for two or more separate periods in one operation spacedby non-conducting periods according to whether the plugs P are located in jacks JO or JR. Specification 714,127 is referred to.
Patent GB-169033-A (GB)
Title: Improvements in and relating to wheel rims for pneumatic tyres
IPC: B60B25/04
Filed: 1920-06-30
Abstract: 169,033. Rudge-Whitworth, Ltd., and Pugh, J. V. June 30, 1920. Tyre attachments to rims.-The detachable side flange d is secured on the rim a by means of a spring ring f sprung into a groove c in the rim base. The ring f is formed as a single or multiple helix of wire, having a substantial area of metal in cross-section relatively to the over-all section of the ring. In use, the ring is tensioned to prevent displacement by centrifugal forces set up in running.
Patent GB-390029-A (GB)
Title: Manufacture of 4-amino-2:5-dialkoxy-diphenyls and azo-dyestuffs therefrom
Filed: 1932-06-24
Abstract: 4-Amino-2 : 5-dialkoxydiphenyls are made by nitrating 2 : 5-dialkoxydiphenyls and reducing.  The reduction may be carried out by means of hydrogen in presence of a hydrogenation catalyst, e.g. iron, tin, zinc in presence of an acid, aluminium-amalgam or sodium hydrosulphide.  In examples, (1) 2 : 5-dimethoxydiphenyl is treated with nitric acid with or without glacial acetic acid, and (2) the 4-nitro product obtained is reduced with hydrogen in presence of nickel on pumicestone and alcohol, (3) 2 : 5-diethoxy-, 2 : 5 : 4<1>-trimethoxy-, 2 : 5-dimethoxy-4<1>-phenyl-, 2 : 5-di-n-butoxy-, 2 : 5-dimethoxy-3<1>-chloro-, and 2 : 5-dimethoxy-3<1> : 5<1>-dichloro-diphenyls are nitrated and reduced.  A table giving the melting-points of further 2 : 5-dialkoxy diphenyls and their 4-nitro and 4-amino derivatives is given.  2 : 5-Dialkoxydiphenyls are made by reducing the phenylquinones obtainable by condensing diazo compounds with quinones and alkylating the phenylhydroquinones thus obtained, e.g. 2 : 5-dimethoxy-4<1>-phenyldiphenyl is made by condensing p-diphenyl-diazonium chloride with benzoquinone, reducing the diphenylbenzoquinone to the 2 : 5-dihydroxy-terphenyl and methylation.  Azo dyes insoluble in water are made in substance, on a substratum or on the fibre, by coupling a diazotized 4-amino-2 : 5-dialkoxydiphenyl with an arylide of 2 : 3-oxynaphthoic acid. Fast violet to blue shades are obtained.  In examples (9) cotton is impregnated with 2<1> : 3<1>-hydroxynaphthoyl-1-amino-4-chloro-2 : 5-dimethoxybenzene and developed with diazotized 4-amino-2 : 5-dimethoxydiphenyl (clear violet), (10) the dyestuff of (9) is prepared in substance. A table showing a number of further combinations and the shades obtained is given.  Specifications 6379/12, [Class 2 (iii), Dyes &c.], 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], 256,808, [Class 2 (iii), Dyes &c.], and 374,548 are referred to.ALSO:4-Amino-2 : 5-dialkoxydiphenyls are made by reducing the corresponding nitro compounds by means of hydrogen in the presence of a hydrogenation catalyst, e.g. iron, zinc or tin in the presence of an acid, aluminium-amalgam or sodium hydrosulphide. In examples (1) 4-nitro-2 : 5-dimethoxydiphenyl is reduced with hydrogen in the presence of nickel on pumicestone and alcohol; (2) 4-nitro-2 : 5 : 4<1>-trimethoxydiphenyl is similarly reduced.
Patent GB-676305-A (GB)
Title: Improvements in electric motors for vacuum cleaning and like machines
IPC: A47L5/12
Filed: 1949-07-08
Abstract: 676,305. Cooling dynamo-electric machines. ROLLNICK & GORDON, Ltd., HILL, A. G., and LOVATT, N. K. May 2, 1950 [July 8, 1949], No. 18089/49. Class 35. A vacuum cleaner &c. has a casing c spaced from the motor stator so as to form an annular chamber d for the cooling air circulation and an outer casing e isolated from the casing c by pads f so as to form the dust &c. chamber. The motor cooling air is circulated by a fan i and enters the inlet in the dome-shaped member h and is exhausted out through outlets l formed in the outer casing e.
Patent GB-1181841-A (GB)
Title: An Actuating Mechanism for Day-and-Date Indicating Means In or For a Timepiece
IPC: G04B19/253
Filed: 1967-04-19
Abstract: 1,181,841. Calendar timepieces. CITIZEN TOKEI K.K. April 19, 1967 [April 20, 1966], No.18099/67. Heading G3T. Day and date indicating means in a timepiece comprises rotatable day and date dials 28, 21 operated by star wheels 27, 14, respectively, a first cam 26 having a main projection 26b, an auxiliary projection 26d, and a peripheral surface portion 26a for engaging between two adjacent projections of the star wheel 27 to hold it in a set position, and a gear train 17, 18, 19 for transmitting motion from the star wheel 14 to a second cam 20 having a projection 20b for engaging in notches 21a in the dial 21 to drive the latter and a peripheral surface portion 20a for engaging in notches 21b in the dial 21 for holding the latter in set positions. The star wheel 14 is rotated intermittently by a finger 13 carried by a gear wheel 12 rotated once for 24 hours by the timepiece movement. The cam 20 is carried by a bell crank lever 22 on which a spring 23 operates to maintain the cam portion 20a in a notch 21b in a set position of the day dial 21. An eccentric cam 29 bears an arm 22b of the lever 22 to reduce the pressure of the cam portion 20a against the notch 21b, so that less effort is required to drive the dial 21.
Patent GB-931790-A (GB)
Title: Improvements in or relating to transporter vehicles
Inventor: CARTER ALASTAIR HOWROYD
IPC: B60P3/08
Filed: 1961-05-18
Abstract: 931,790. Car transporters. CARTER ENGINEERING CO. (TAMWORTH) Ltd. May 14, 1962 [May 18, 1961; Oct. 30, 1961], Nos. 18113/61 and 38694/61. Class 108(1). A lift platform 16 supported on four screw jacks at the rear of a car transporter may be raised to the level of the upper deck 12 to facilitate loading and as the platform 16 is preferably inclined in its lower position the pitch of the screw threads or alternatively their speed of rotation may be varied to ensure that the platform 16 is level in the raised position. The screws may be rotated through gearing from a centrally arranged rod 18 driven from the engine or the screws may be driven by sprockets and chains.
Patent GB-1147061-A (GB)
Title: Improvements in and relating to vehicle brake actuators
Inventor: BRANT GRAHAM JOHN
IPC: B60T17/08
Filed: 1965-04-29
Abstract: 1,147,061. Vehicle brake actuators. YORK TRAILER CO. Ltd. 26 April, 1666 [29 April, 1965; 15 Sept., 1965], Nos. 18125/65 and 39458/65. Heading F2F. A vehicle brake actuator comprises a first chamber 1, which is sub-divided into three chamber portions 2, 4 and 6 by two diaphragms and or pistons 8 and 10 operatively connected to a brake actuating rod 14, the chamber portions 4 and 6 having connections 24 and 26 to service and auxiliary air supply lines respectively, and a second chamber 12, which incorporates a third piston or diaphragm 30, also operatively connected to the brake actuating rod, said third piston or diaphragm normally being retained in the brake release position against the bias of a brake applying spring 33 acting on one side of said third piston or diaphragm by pressure fluid supplied through an emergency third line connection 44 acting on the other side of said piston or diaphragm. On service application of the brakes air is supplied from a reservoir (not shown) on the vehicle, e.g. a trailer, through a relay valve or valves to chamber portion 4 to actuate the brakes. On failure of the service supply line, the brakes are operated by air supply through the auxiliary line to actuate the diaphragm 10. If the air reservoir to both the service and auxiliary supply lines fails, the second chamber 12 becomes depressurized, and the brakes are applied by the spring 33. Similarly, if the pressure in the second chamber is deliberately leaked by opening a parking valve (not shown), the brakes are again spring- applied. In an alternative embodiment, instead of mounting the actuator on a vehicle bracket by means of bolts at the front end 18 of the first chamber, the actuator is mounted by bolts 50 extending from the end wall of the second chamber, the brake rod 14 in this embodiment extending from the first chamber, through the piston 30 of the second chamber, and out through the said end wall. The piston of the second chamber is coupled to the brake rod by a sealing sleeve 20 slidably passing through said end wall.
Patent GB-232831-A (GB)
Title: Improvements in or relating to cylinders of internal combustion engines
IPC: F02F1/36
Filed: 1924-07-30
Abstract: 232,831. Marks, E. C. R., (Studebaker Corporation). July 30, 1924. Cylinders, construction of.-A valve-carrying member 3, of cast iron or other heavy metal, is fixed between the cylinder 1 and its cover 4 which are of aluminium or other light metal. The valves 9 are inclined to the vertical as shown in the Figure, and open into a combustion chamber ]9 which is separated from the cylinder by a restricted passage 18. The cylinder is cast integral with the upper part of the crank-case and has a cast iron liner 5.