baber/WOPTO huggingface dataset:
Patent GB-278587-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/32
Filed: 1927-03-18
Abstract: 278,587. Kinney, J. R. March 18, 1927. Movable-abutment type; discharge and suction pipes and passages for pumps; starting.-A. rotary vacuum pump which comprises a piston sleeve 21 mounted on an eccentric 20 on a. central shaft 17 and having a radial abutment 22 which slides in a rocking member 23 is formed with an inlet passage 24 in the abutment 22 the ports 26 of which are so spaced from the periphery of the piston that the rocking member 23 closes the inlet while the point of contact of the piston travels from a point at one side of the outlet to a point considerably beyond the inlet. The ports 26 are inclined to give a better bearing surface on the blade for its passage through the rocking inember. A non-return valve fitted in the outlet 40 consists of a number of aligned ports 33 in the casing 10 covered by a strip 36 of spring metal on which bears a spring-pressed bar 37 with cross ribs 42 bearing on the strip 36 so that when the air pressure is insufficient to lift the valve the air can escape by deflecting the strip between the cross ribs 42. Starting of the pump is facilitated by the provision of a bye-pass valve 59 so situated that until the pressure is too low to open it a, portion of the air is returned to the abutment chamber 12 by the pipe 63. The eccentric 20 is cored out and closed by plugs 32. The piston sleeve bears only at its ends 55 on the eccentric. The rocking member is formed in two parts connected by longitudinal pins 30. For lubricating and sealing purposes oil is supplied under the control of a needle valve 48 to recesses 49, 50'in the piston ends and in the abutment.
Patent GB-487903-A (GB)
Title: Improvements in or relating to incandescent electric lamps
IPC: H01K9/02
Filed: 1937-03-15
Abstract: 487,903. Multiple - filament electric lamps. MAPLESON, C. H. March 15, 1937, No. 7561. Convention date, March 16, 1936. [Class 39 (ii)] In a lamp provided with a main filament 15, Fig. 1, and an auxiliary filament 16 a bi-metallic strip 17 actuated solely by heat derived from the main filament is provided to control the current flow, so that current normally flows through the main filament only, but flows through the auxiliary filament upon failure of the main filament. The main filament 15 is connected to two end supports consisting of leading-in wires 12, 13, while the auxiliary filament 16 has one end connected to the wire 12 and the other end connected to a supporting- wire 14. The bi-metallic strip 17 is secured to the upper end of the wire 13 near to the point of attachment of the main filament 15, and is arranged so that when cold it contacts with the supporting-wire 14, and when heated it bends out of contact therewith. When current is first supplied to the lamp both filaments will be energized, but as the strip 17 becomes heated by the filament 15 the circuit through the filament 16 is opened. When the main filament becomes inoperative the strip 17 moves back into contact with the wire 14 and energizes the filament 16. The arrangement is such that the heat from filament 16 is not sufficient to operate the bi-metallic strip. In a modification the strip is twisted through 180 between its ends and so arranged that the heat generated from the main filament tends to force the strip away from its co-operating wire, whereas when the main filament burns out, the general heat within the bulb ensures a positive contact between the strip and the wire. In a further modification a wire 18, Fig. 6, welded to the upper end of the bi-metallic strip 17 and also to the upper end of the leading-in wire 13, supports a glass bead 19. A length of wire 20 is formed intermediate its ends with a loop which is fused into the bead 19, one end 21 of the wire being welded to the supporting-wire 14 while the other end portion is looped at 22 and provided at its extremity with a plate 23 adapted to press against the lower end of the bi-metallic strip 17. A slot 25 in the plate 23 engages the longer limb of the loop 22 to limit the movement of the shorter limb relatively thereto. When no current is flowing through the lamp the parts are in the position shown ; when, however, the lamp is switched on, the strip 17 is bent away from the plate 23 by the heat radiated from the main filament 15.
Patent GB-1461238-A (GB)
Title: Method for desulphurizing molten iron
IPC: C21C1/02
Filed: 1975-02-24
Abstract: 1461238 Desulphurizing molten iron AIKOH CO Ltd 24 Feb 1975 [27 Feb 1974 9 April 1974] 7576/75 Headings C7D and C7M Molten iron is desulphurized by treatment with the dust recovered during the smelting of manganese or chromium, the dust preferably being used in combination with soda ash. The reagent may be blown into the bath in a stream of gas, introduced by stirring, or granulated with cement and placed in the receptacle before introduction of molten metal. Preferred additive compositions are 5-99 per cent by weight of dust and 1-95 per cent of soda ash; 45-95 per cent dust, 2-25 per cent cement and 3-30 per cent water; 5-94 per cent dust, 1-40 per cent soda ash, 2-25 per cent cement and 3-30 per cent water. Typical dust recovered from manganese smelting contains by wt. 2-20 percent Na 2 O, 5-50 per cent K 2 O, 20-40 per cent MnO, 5-30 per cent CaO, 3-20 per cent SiO 2 , 3-10 per cent C, and not more than 5 per cent each of Al 2 O 3 , Fe 2 O 3  and CaF 2 , while that from chromium smelting contains 3-25 per cent Na 2 O, 4-40 per cent K 2 O, 4-15 per cent CaO, 5-30 per cent SiO 2 , not more than 5 per cent of Cr203, and not more than 5 per cent each of C, Al 2 O 3 , Fe 2 O 3  and CaF 2 . Preferably when the dust has a value of at least 2 for the quantity the dust is used alone, while if the value of that parameter is below 2 it is used in conjunction with soda ash. Iron oxides and fluorides of Ca, Mg, Li and Na may also be included in the additive.
Patent GB-1221324-A (GB)
Title: New processes for the production of benzazepine derivatives
IPC: C07D203/08
Filed: 1968-02-16
Abstract: 1,221,324. Benzazepine derivatives. J. R. GEIGY A.G. 16 Feb., 1968 [17 Feb., 1967; 18 Aug., 1967], No. 7601/68. Heading C2C. A process for the production of 2,3,4,5-tetrahydro-1H-3-benzazepines of the general Formula I: wherein the symbols R 1 , R 2 , R 3  and R 4  each independently are hydrogen, an alkyl radical of 1 to 6 carbon atoms, and maximally two of these symbols represent a cycloalkyl radical C 3-7  or a phenyl radical optionally substituted by a halogen atom other than iodine, and/or an alkyl C 1-6  radical or the pair of symbols R 3  and R 4  together represent a tri- or tetramethylene group, R 5  represents hydrogen or halogen, or R 6  represents hydrogen, a halogen atom other than iodine, an alkyl C 1-6  radical or the trifluoromethyl group, as well as their acid addition salts with inorganic or organic acids, comprises treating a phenylethylamine derivative of the general formula wherein R 1  to R 6  are as defined above, and X represents a halogen atom other than iodine, or an addition salt of such a compound with an inorganic or organic acid, with a Lewis acid at temperatures between 100‹ and 300‹ C. and isolating the end products of Formula I and, if desired, treating the free base with an inorganic or organic acid to form an acid addition salt. In one example 7-chloro-2,3,4,5-tetrahydro- 1H-3-benzazepine, a novel compound, is prepared. N - [(2 - Chloroethyl) - phenylethylamine] - hydrochloride is prepared by reacting 1-phenyl-2- (N-aziridinyl)-ethane with hydrogen chloride. 1 - Phenyl - 2 - (N - aziridinyl) - ethane is prepared by reacting styrene with ethylene imine. 1 - p - Chlorophenyl - 2 - (N - aziridinyl)- ethane is prepared from 4-chlorostyrene and ethylene imine. Pharmaceutical compositions containing as active ingredient 7-chloro-2,3,4,5-tetrahydro- 1H-3-benzazepine or an acid addition salt thereof, together with a pharmaceutically acceptable carrier are administered orally, rectally or parenterally, and have anorexigenic activity and are useful for the treatment of obesity.
Patent GB-1596611-A (GB)
Title: 1,4-dihydro-4-oxo-6-alkyl-pyridazine-3-carboxylic acid derivatives thereof and their use as plant growth regulants
IPC: A01N47/22
Filed: 1978-02-27
Abstract: Agents for regulating the growth of plants are described which correspond to the formula: <IMAGE> where R<1> represents a carboxy radical or a corresponding salt suitable in agriculture, or an alkoxycarbonyl radical, R<2> represents an optionally substituted phenyl radical, R<3> represents an alkyl radical, and R<4> represents a hydrogen atom or an alkyl or halo radical. These compounds can be used in particular for the production of hybrid cereals by induction of male sterility.
Patent GB-489754-A (GB)
Title: An improved bucket or container for food and/or drink
IPC: A01K9/00
Filed: 1938-03-11
Abstract: 489,754. Feeding and drinking appliances for animals ; buckets. BLOW, J. J. March 11, 1938, No. 7679. [Class 5 (ii)] [Also in Group XVII] A bucket or container from which two or more animals may feed simultaneously has semicircular parts joined by concave portions 6, and is divided into compartments 2, 3 by one or more partitions 4 extending across the full width of the bucket but terminating above the bottom thereof. A handle 7 is provided.
Patent GB-883336-A (GB)
Title: New piperazine-carboxylic acid esters and process of preparing them
Filed: 1958-03-10
Abstract: The invention comprises compounds of the general formula <FORM:0883336/IV (b)/1> and the inorganic acid addition salts of those compounds containing a salt forming basic group, and the inorganic base salts of those compounds containing a salt forming acid group (wherein Hal is a halogen atom and R is an aliphatic, aromatic or aliphatic-aromatic hydrocarbon radical that may contain one or more halogen atoms or dialkylamino, ether, hydroxy or free or esterified carboxyl groups), and the preparation thereof by reacting a 1-(31-halogen-4-methylphenyl)-piperazine with a compound of the general formula X-CO-OR (wherein X is a halogen atom); and, if desired, transforming any benzyl ester or benzyl ether group that may be present in the product into a carboxyl or hydroxy group by catalytic hydrogenation, or, if desired, replacing any halogen atom (other than the halogen atom that is present on the 31-position of the 41-methylphenyl residue) by a dialkylamino group by reaction with a dialkylamine; also pharmaceutical preparations containing the products (see Group VI).  Reference is also made to organic acid addition salts of compounds containing a basic group, and to the replacement of a halogen atom in R by reaction with ammonia or a primary amine. Specification 813,173 is referred to.ALSO:Preparations for parenteral administration against schistosomiasis comprise oily solutions or aqueous suspensions of compounds of the general formula <FORM:0883336/VI/1> (wherein Hal represents a halogen atom and R an aliphatic, aromatic or aliphatic-aromatic hydrocarbon radical that may contain one or more halogen atoms or dialkylamino, ether, hydroxy or free or esterified carboxyl groups), or inorganic acid addition salts (e.g. hydrochlorides) of such of these compounds as contain a salt-forming basic group, or inorganic base (e.g. alkali metal) salts of such of them as contain a salt-forming acid group. Specification 813,173 is referred to.
Patent GB-1154771-A (GB)
Title: An Improved Method and Apparatus for Monitoring the Alcohol Content of a Solution
IPC: B41F33/00
Filed: 1967-02-17
Abstract: 1,154,771. Dampening apparatus for rotary litho offset presses. BALDWIN-GEGENHEIMER CORP. 17 Feb., 1967 [11 July, 1966], No. 7760/67. Heading B6C. A method of supplying dampening solution having a predetermined proportion of alcohol to a fountain pan 2 of a rotary lithographic offset printing press comprises the steps of: (a) feeding a solution of water, etch, gum and alcohol from a source 6 to the fountain pan 2, (b) returning unused solution from the pan to the source, (c) automatically determining by hygrometric apparatus 12 when the proportion of alcohol in said solution has fallen below a predetermined level, (d) automatically supplying from a tank 16 and through valve means alcohol to the source when the proportion thereof has fallen below the predetermined level, and (e) automatically stopping the supply of alcohol to the source 6 when the proportion thereof reaches said predetermined level.
Patent GB-702225-A (GB)
Title: Improvements in the manufacture of steel
IPC: C21C7/10
Filed: 1951-04-04
Abstract: 702,225. Refining steel. WALDRON, F. B. March 7, 1952 [April 4, 1951], No. 7761/51. Addition to 653,956. Class 72 The furnace or chamber maintained under reduced pressure and which is of sufficient height to allow the metal to rise therein, described in the parent Specification, is provided with means for heating the metal. As shown, the chamber 35 may be provided with a pocket 33 surrounded by a coreless induction coil 34.
Patent GB-1079325-A (GB)
Title: A lamp socket for a tubular lamp
IPC: H01R33/08
Filed: 1966-02-23
Abstract: 1,079,325. Lampholders. AMP Inc. Feb. 23, 1966 [March 5, 1965], No. 7844/66. Heading H2E. A fluorescent lamp holder comprises a resilient plastics housing 1 having two vertical rectangular cavities 9, each containing a U- shaped contact spring 16 arranged so that, when the lamp is received in a tubular support 2 extending from a side face of the housing, the lamp pins pass through aligned apertures (7) (Fig. 2, not shown) and 20 in the housing and contacts to be gripped between opposed arms of the contacts. The contacts 16, which are crimped to the conductors and insulation of leads (19), are retained in the cavities 9 by engaging tongues 21 and shoulders (10) (Fig. 4, not shown). Mounting arms 15 for snap-fitting in a panel aperture extend from opposite sides of the housing 1, and an additional aperture 13 may be provided for a mounting screw.
Patent GB-1467596-A (GB)
Title: Fluid pressure control device for brake systems
IPC: B60T8/26
Filed: 1975-02-25
Abstract: 1467596 Fluid pressure brakes NISSHIN KOGYO KK 25 Feb 1975 [17 April 1974] 7868/75 Heading F2F A fluid pressure brake control device for a vehicle brake system includes input ports 8 1 , 8 2  for receiving fluid from two lines L 1 , L 2  from a master cylinder M, output ports 10 1 , 10 2  for delivering fluid to a pair of brakes Br, Br<SP>1</SP>, a balance piston 9 disposed normally in a neutral position in a main bore 4, two output chambers 73, 7 4 , one at each end of the bore 4 in communication with the respective output 10 1 , 102, two input chambers 7 1 , 7 2 , each in communication with a respective output chamber via a valve 20 1 , 20 2  which valve is arranged to intermittently adjust the flow, in use, to supply a reduced pressure to the output port, the valve being by-passed to connect the respective input and output ports when the balance piston moves towards the output chamber of the other valve. The input and output chambers are separated by pistons 5 1 , 5 2  in larger diameter portions of the bore, the balance piston 9 having end formations 11 1 , 11 2  which engage in by-pass holes 12 1 , 12 2  in the pistons 5 1 , 5 2  in the neutral position but when the pistons are axially separated by-passing of the valve is permitted, the piston 9 also having an annular groove 13 which operates a switch unit 14 to energize an alarm 16 in the event of inbalance.
Patent GB-609425-A (GB)
Title: A new or improved machine for sowing seeds
IPC: A01C7/04
Filed: 1946-03-14
Abstract: 609,425. Seed-sowers &c. COLLYER, J. L. March 14, 1946, No. 7923. [Class 6(i)] A seed-sowing machine comprises a wheeled frame 14 carrying seed hoppers 34 from which seeds pass in single lines through tubes 38 to pocketed distributing devices and thence to the ground, the frame being provided with a transverse member 15 on which are mounted adjustable brackets which support the seed hoppers and distributing devices. In the form shown, the machine comprises a frame 13, 14 mounted on an axle 11 which can be driven through ratchets 12 from either of two land wheels 10 carried by the axle. The drive is continued through a clutch 24, gear-wheels 23, 26 and bevel gears 28, 29, to shafts 30 which drive the moving parts of two or more seed distributers mounted on a cross bar 15 so as to be relatively transversely adjustable. Each distributer, Fig. 3 comprises a hopper 34 feeding seed through a shoot 35 to a second hopper 36 mounted at one end of a transparent tube 38 of sufficiently small bore to cause the seeds to pass through it in a single line. At the lower end of the tube the seeds enter recesses 46 in a rotating disc 42 mounted on the shaft 30. The seeds drop from the recesses in the disc into a delivery tube 45 which carries them to furrows formed by a land-engaging shoe 49 mounted on the frame 14, which also carries furrow closing rollers 52. In a modification (Fig. 4, not shown) the rotating disc is replaced by an endless belt having pockets in its surface.
Patent GB-416724-A (GB)
Title: Improved metal casing for electric incandescent tubular lamp reflectors
IPC: F21S8/04
Filed: 1933-03-16
Abstract: 416,724. Lamps with trough-shaped reflectors. GUDLEVSKY, W., and GUDLEVSKY, H., (trading as WOOLF & HARRIS), 8, Ebor Street, Bethnal Green Road, London. March 16, 1933, No. 7959. [Class 75 (iv).] A channel-shaped casing for the reflector of an electric incandescent tubular lamp is formed with its upper edge a curled inwards and its bottom edge a<1> beaded, and the trough-shaped reflector has an upper beaded edge b and a lower outwardly curled edge b<1>, the curled edges a, b<1> embracing the beaded edges b, a<1> respectively. The curled edges b, a<1> are slightly more than circular, and have a diameter sufficient only to encircle closely the beaded edges, so that the casing and reflector are held firmly together. The base of the casing consists of two narrow longitudinal sides a<5>, a<6>, either of which may be held by screws against a supporting surface. The flex for the lamp is held by a trough b<3> at the back of the reflector.
Patent GB-565715-A (GB)
Title: Improvements in or relating to highway direction and like signs
IPC: G09F7/18
Filed: 1943-05-20
Abstract: 565,715. Signs. BRACKENSEY, A. H., and FRANCO-BRITISH ELECTRICAL CO., Ltd. May 20, 1943, No. 8061. [Class 3 (ii)] A sign 1 made of plastic. material is reinforced by ribs or battens 2 at the rear which may be integral with the sign face or attached thereto by screws. The sign is fixed to a supporting post 3 by saddles or stirrups 4 screwed or bolted to the ribs 2. In a modification, the ribs are longitudinally channelled to receive the heads of retaining bolts, this form permitting lateral adjustment of the sign on the post. In another form, the signs are made box-shaped, and two or more may be bolted together with their display faces coplanar. The sign may have a metal mesh, plywood, &c. reinforcement embedded in its plastic material, and in one construction this reinforcement permits of the rear ribs &c. being dispensed with.
Patent GB-1043772-A (GB)
Title: Stabilized signal source
IPC: H03L7/20
Filed: 1964-02-26
Abstract: 1,043,772. Automatic frequency control. HEWLETT-PACKARD CO. Feb. 26, 1964 [March 14, 1963], No. 8084/64. Heading H3A. The output frequency of a frequency sweep oscillator 9 driven by a tuning voltage from unit 15 is stabilized by comparison in phase detector 13 with successive harmonics of the output signal of a reference oscillator 11 which is repeatedly swept over a narrow range of frequencies by a sawtooth waveform supplied by unit 17. During each sweep of the reference oscillator, the output signal of the main oscillator is phase locked to a selected harmonic of the reference oscillator. At the end of each sweep the frequency of the reference oscillator returns to its lowest value and on the following sweep the main oscillator is locked to a successively higher harmonic of the reference oscillator. The time constant of the frequency control loop 20 is made sufficiently long so that no significant change occurs in the frequency of oscillator 9 when the reference frequency changes abruptly from a high to a low value.
Patent GB-550326-A (GB)
Title: Improvements in or relating to tanks for use in aircraft
IPC: B64D37/22
Filed: 1941-06-30
Abstract: 550,326. Tanks. NAPIER & SON, Ltd., D., and TRYON,.H. C. June 30, 1941, No. 8198. [Class 69 (i)] Relates to tanks for aircraft containing liquid such as lubricating oil supplied by a pump to the engine or to auxiliary hydraulically-operated means, and comprises an outer chamber having fixed therein a vertically-extending inner chamber with an inlet at its upper end and a baffle constraining the liquid to swirl in a helical path downwardly, vanes in the lower part of the inner chamber straightening the liquid flow to an outlet in the lower part of the inner chamber from which a passage leads to the main delivery pipe, said passage also communicating with the lower part of the outer chamber. Interference with the supply, due to sudden movements of the aircraft, is thereby. prevented. As shown, an inner cylindrical chamber B is fixed to the upper end of the outer tank A and has a tangential inlet G<SP>1</SP> and a reduced lower end B<SP>2</SP> connected by a gauze or like permeable passage C to the outlet D. In the chamber B is a hollow shaft E carrying a helical baffle F and having a closed lower end from which vanes H radiate; the shaft E has holes E<SP>2</SP> by which escaping air may pass through the shaft E to atmosphere or the engine sunip. Within, the outer chamber are horizontal overlapping baffles J, K. In another form, the vanes H are disposed in the reduced part B2 of the inner chamber which is brought lower to depend into a cup-like recess in the bottom of the outer chamber and from which leads the outlet D; the gauze &c. C is then arranged in the annular space between the bottom of the outer tank and the part B<SP>2</SP>.