baber/WOPTO huggingface dataset:
Patent GB-538743-A (GB)
Title: A process for preparing 2-alkyl-4-amino-5-carbalkoxy-pyrimidines
IPC: C07D239/42
Filed: 1940-06-18
Abstract: 538,743. Pyrimidine derivatives. CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA R.T. (DR. KERESZTY & DR. WOLF). June 18, 1940, No. 10534. Convention date, June 17, 1939. [Class 2 (iii)] 2-Alkyl-4-amino- 5 - carbalkoxy - pyrimidines are prepared by heating α-cyano-#-amidinoacrvlic acid esters with water or acidulated water. The products are useful for the preparation of therapeutic compounds. According to the example, α-cyano-#-acetamidino-acrylic acid ethyl ester is boiled under reflux with a tenfold amount of water for an hour, yielding 2-methyl- 4 - amino-5 - carbethoxy - pyrimidine, which on standing with concentrated ammonia for two days gives the 5-carbonic acid amide. The use of the propyl, alkyl and benzyl esters is referred to, and also of the corresponding propionamidine, butyramidine and phenacetamidine starting materials. Instead of water, 4 per cent. acetic acid or 1 per cent. hydrochloric acid may be used. Treatment with caustic soda is stated to give 4-hydroxy-5-cyano-2-methylpyrimidine. α-Cyano-#-amidino-acrylic acid esters are obtained by reacting alkoxy-methylene-cyanacetic esters with amidine bases at a low temperature.
Patent GB-1145193-A (GB)
Title: Antibacterial compositions
IPC: A61K31/18
Filed: 1967-03-06
Abstract: 1,145,193. Antibacterial compositions. STERLING DRUG Inc. 6 March, 1967 [18 March, 1966], No. 10534/67. Heading A5B. A therapeutic anti bacterial preparation, adapted for the topical treatment of open wounds (particularly burns) and producing no electrolyte changes, comprises a pharmaceutically acceptable hydrophilic base having incorporated therein an antibacterially effective amount of p-aminomethylbenzenesulphonamide acetate. The preparations may be in the form of ointments or creams, or a propellant may be included in the composition to form an aerosol. The hydrophilic base consists of an aqueous phase which may include an humectant, e.g. glycerol, propylene glycol or a polyethylene glycol; at least one emulsifying agent, e.g. soaps, polyglycol esters, quaternary ammonium compounds, alkyl sulphates and alkyl aryl sulphonates; and an oleaginous phase generally including one or more waxes, petrolatum, mineral oils, fats and higher alkanols containing from 12 to 18 carbon atoms, antioxidants and preservative agents may also be present.
Patent GB-310172-A (GB)
Title: Improved process and apparatus in and relating to the manufacture and production of artificial threads, filaments and the like
IPC: D01D10/04
Filed: 1928-04-10
Abstract: 310,172. Courtaulds, Ltd., and Morton, E. A. April 10, 1928. Treating substances with liquids.-The centrifugal boxes, in which cakes of artificial threads and the like are spun, are fitted with devices fixed at the centre of the bottoms of the boxes, so that a jet of liquid, for example washing liquid, projected more or less vertically downwards on to the device is broken up into spray, which permeats all parts of the cake with the result that a cake of viscose silk, for example, can be washed in a few minutes and then dried without deterioration. In the apparatus shown in the drawing, a stream of water or other liquid is projected downwards through a nozzle C, provided with a ball and socket arrangement, on too a circular disc fitted to the centre of the bottom of the box, so that it rotates therewith. This disc comprises a central domed portion E upon which the liquid impinges and radial ridges F, surrounding the domed portion and so arranged that the outer ends of the hollows between the ridges are lower than the inner ends of the hollows. Specification 294,279 is referred to.
Patent GB-657978-A (GB)
Title: Improvements in the arrangements of seats in meeting places and the like
IPC: E04H3/12
Filed: 1949-04-21
Abstract: 657,978. Seats, fixing and nesting. LUBLIN, S. M. H., and LUBLIN, K. L. April 21, 1949, No. 10634. Convention date, April 23, 1948. [Class 52 (ii)] In public halls &c. each row of seats is mounted on a platform successive platforms being arranged at graded heights from the floor so that, when it is desired to clear the floor, the platforms, with their rows of seats, are adapted to be nested together. As shown each platform A1 ... A6 is provided with a row of seats, the first platform A1 being supported on the floor while successive platforms A2 ... A6 are supported at the front by the platform immediately preceding it and at the rear by supports B2 ... BS of graded heights. The rows C1 ... C6 of seats are supported by uprights and bars E1 ... E6 so as to overhand the fronts of the platforms and the uprights F1 ... F5 are preferably continued upwardly to carry back supports Jl ... J6 &c. The rows of seats may be arranged in a curve and the individual seats may be tippable.
Patent GB-106640-A (GB)
IPC: F02D9/00
Abstract: 106,640. Koressios, T. N. C. May 10, 1916. Spray carburettors.-Relates to an automatic regulator for the supply of air to the carburettors of aircraft engines at constant pressure irrespective of the height at which the machine is flying. Air is stored under moderate pressure in a reservoir P, Fig. 3, and is admitted by an automatically-controlled valve 7, Fig. 1, to a casing S and a reservoir S<1> leading to the carburettor C. The valve 7 is controlled by a U-tube or other barometric device 18, which, when the pressure in the casing S falls below the normal atmospheric pressure, closes the circuit of a pair of electro-magnets 17. These attract an armature 15 mounted on a lever 12<1>, which lifts the valve 7 against the action of an adjustable spring 10 until the pressure rises to normal. The air is compressed into the reservoir P by double-acting compressors 26, the piston-rods 27 of which are attached to the pistonrod 28 of the engine cylinder by a cross-bar 30. Compressors actuated directly from the crankshaft may be used. A pipe 32 is provided to connect the chamber S directly with the atmosphere for use when flying at or near sea-level.
Patent GB-106772-A (GB)
IPC: G01G1/00
Abstract: 106,772. White, A. E., (Toledo Scale Co.). Nov. 14, 1916. Computing-apparatus; pendulum-weight apparatus; platform machines; taring devices; vibration, neutralizing.-In a semi-automatic computing or other weighing-scale wherein the load is balanced by a pendulum 12 and by a tare beam 13 carrying sliding poises 14a, the platform lever mechanism is connected by a rod 10 to an intermediate lever 11 fulcrumed on a knife-edge 15. The intermediate lever 11 is connected to the pendulum 12 by a flexible band 26 and is connected to the tare beam by a rod 19, the former connexion being more remote from the fulcrum 15 than the latter connexion, thus obtaining the correct relative angular movements of the pendulum and tare beam and at the same time allowing the segment 24 of the pendulum to be made of relatively large radius. Buffers 34, 35 prevent undue movement of the pendulum 12 and lever 11. A dash-pot 33 is connected to the tare beam 13.
Patent GB-106857-A (GB)
IPC: C10L11/02
Abstract: 106,857. Ward, T. Jan. 5. 1917 Lighting fires.-A block a for absorbing petroleum, &c., is carried by a wire handle c and a frame c<2> arranged in a groove in the edge of the block, and is provided with a longitudinal hole a<3>. The block is composed of equal parts of fireclay and ground asbestos, mixed into a pasty mass moulded and dried.
Patent GB-1414042-A (GB)
Title: Aircraft landing gear hydrostatic control arrangement
IPC: B64C25/22
Filed: 1973-03-06
Abstract: 1414042 Aircraft undercarriages MESSIER-HISPANO 6 March 1973 [7 March 1972] 10734/73 Heading B7G [Also in Division F2] An aircraft landing gear hydrostatic control arrangement comprises an hydraulic pump and a double-acting distribution valve including a slidable valve member 5, Fig. 1, movable between opposite ends and biased to a neutral position shown, an inlet port 11 receiving hydraulic fluid from the pump, transfer ports 23, 29, 35 and 41 connected to various components of the undercarriage operating system, and two exhaust ports 15, 19 connected to a reservoir. Means 27 and 33 for unlocking the undercarriage in its raised and lowered positions are exhausted through the port 15, whereas the opposite ends 39, 45 of the raising and lowering jacks are exhausted through the other port 19. Thus hydraulic pulses set up in the lines connected to the jacks at touchdown when the slide valve is in its neutral position, are isolated by the reservoir from the lines connected to the locking means, thereby avoiding accidental unlocking. The slide valve may be positively actuated by way of lever 9, or indirectly by way of electrically actuated pilot valves (109, 209), Fig. 2 (not shown), which supply actuating fluid to the appropriate end of the slide valve and exhaust through the port 15.
Patent GB-1307032-A (GB)
Title: Illuminator for illuminating a fluorescent object
IPC: G02B21/16
Filed: 1971-04-22
Abstract: 1307032 Fluorescence microscopy ERNST LEITZ GmbH 22 April 1971 [2 May 1970 13 Nov 1970] 10735/71 Heading G2J An illuminator for illuminating a fluorescent material comprises light source 1, mirror 4a, dichroic mirror 4, and filter 7, the light being reflected by 4a to dichroic semi-reflector 4, and thence to illuminate the object 6 via objective 5, giving fluorescence which passes through semireflector 4 and filter 7, wherein mirror 4a is a dichroic reflector or semi-reflector as shown or is a mirror preceded by a filter Figs.1 4 and 5, (not shown). Filter 7 removes excitation radiation from the beam viewed. Mirrors 4, 4a may be movable, preferably together, and filter 7 may also be movable. Filter 7 may be interchangeable, and interchangeable units of mirrors and filters arranged as above may be provided in a microscope Figs.6-9, (not shown).
Patent GB-189053-A (GB)
Title: Improvements in electrical pocket-lamps
IPC: F21L4/00
Filed: 1922-04-18
Abstract: 189,053. Rogge, B. April 18, 1922. Battery lamps.-Comprises several constructions of casings for pocket lamps, of the kind wherein one part of the casing can be opened upon a hinge to facilitate the insertion of a battery. The hinge may be arranged in several different positions, for example as shown at 5, Fig. 1, or at 6, Fig. 4, or at 11, Fig. 6, or at 7, Fig. 10, or at 5, Fig. 11, or at 5, Fig. 24. The lens hood 4 may be pivoted or it may be integral with either part of the divided casing. Projections 27, Fig. 11, upon the movable part of the casing serve to lock the lens hood in position. The bottom of the casing may be integral with one side of the casing as shown in Fig. 1, or hinged to it as shown in Fig. 4, or it may be divided as shown in Fig. 11. The hinge may comprise two ears 33, one at each side of the movable part, as shown in Fig. 20. The casing may be locked by a spring catch 26, Fig. 24, engaging an eye 4<a> on the lens hood. Several other modifications are described.
Patent GB-494096-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C13/00
Filed: 1937-04-16
Abstract: 494,096. Fire-extinguishers. CONCORDIA ELEKTRIZITATS AKT.-GES. and GOSMANN, W. April 16, 1937, No. 10966. [Class 47 (ii)] An extinguisher comprises an outer container a for liquid and an inner perforated, container d for a measured quantity of a solid, such as solid carbon dioxide or a carbide, which generates gas pressure when brought into contact with the liquid. The con tainer d is mounted in the bottom of the extinguisher and is closed by a cap c For charging, the extin guisher is inverted, a tube e preventing overfilling with liquid. As soon as the extinguisher is reversed to normal position, contact of the liquid with the solic generates gas pressure for expelling the liquid. I the extinguisher normally is enclosed in a lead-sealed holder, the charging open ing is only accessible when the extinguisher is removed from the holder.
Patent GB-1007673-A (GB)
Title: Preparation of semiconductor compounds
IPC: H01L21/00
Filed: 1963-03-20
Abstract: A Group III-V semi-conductor compound other than one containing nitrogen is synthesized as a melt in a fused silica vessel at a temperature of at least 1000 DEG  C. in an atmosphere of oxygen at a room temperature pressure of 1-100 mm. Hg.  Oxygen may be introduced into the vessel by a gas supply line or by decomposition of a suitable metallic oxide within the vessel at the synthesis temperature. Specified semi-conductor compounds are gallium arsenide, gallium phosphide, and indium phosphide. In typical examples, (a) gallium is placed in a fused silica vessel at one end of a reaction tube and arsenic at the other.  The tube is evacuated to 10-6 mm. Hg, oxygen is added at a room temperature pressure of 5-20 mm. Hg, and the tube is sealed and placed in a double furnace, which heats the gallium end of the tube to 1250 DEG  C. and the arsenic end to 610 DEG  C.  Arsenic sublimes and combines with the molten gallium to form a melt of gallium arsenide; (b) the procedure is as above, with the exception that oxygen is introduced by decomposition of gallic oxide (Ga2O3) placed in the high temperature end of the furnace.
Patent GB-494158-A (GB)
Title: Improvements in or relating to securing devices for flat footed railway and like rails
IPC: E01B9/52
Filed: 1937-04-19
Abstract: 494,158. Securing railway rails. MILLS, Ltd., EXECUTORS OF J. April 19, 1937, No. 11060. Convention date, April 18, 1936. [Class 104 (ii)] A key 10 for securing a rail in its support by being forced between the rail foot and an abutment 15 on the support, is made of spring steel which, after fabrication of the key, is heattreated to harden and temper it. The key may be shaped or bent so that it engages the rail foot at its two ends and the abutment at the middle. It may be formed with a reentrant angle 12 so that it engages the edge and top of the rail foot. In another form, the key is flat on the outer face, and the rail engaging face has a groove.
Patent GB-1018711-A (GB)
Title: Substituted aminohydroxy anthraquinones
IPC: C09B1/58
Filed: 1963-03-20
Abstract: 1-Hydroxy-4-aminoanthraquinones having an aliphatic, aromatic or araliphatic mercapto group in 2-position are made by reacting a 1-hydroxy-4-nitroanthraquinone, which may have a further hydroxy group in one a -position or a further hydroxy group and a nitro group in the other a -positions but which is unsubstituted in the 2-position, with an aromatic, aliphatic or araliphatic mercaptan, one reaction component being present as an alkali-metal salt, and then reducing any incompletely reduced nitro groups to amino.  The invention further comprises 1 - hydroxy - 2 - aralkylmercapto - 4 - aminoanthraquinones. Anthraquinones which may be used in the process are 1-hydroxy-4-nitro-, 1:8-dihydroxy-4:5-dinitro-, 1:5-dihydroxy - 4:8 - dinitro-and 1:4:5 - trihydroxy-8-nitroanthraquinones and mercaptans specified are 2 - mercaptoethanol, 2 - diethylamino-ethyl mercaptan, butyl mercaptan, dodecyl mercaptan, thioglycerol, benzyl mercaptan, thiophenol, the tert.-butyl thiophenols, thiocresols and chlorothiophenols.  Two mercapto groups may be introduced into an appropriately substituted anthraquinone.  The dyes dye and print cellulose triacetate, polyamide and polyester materials in red, blue and grey shades.
Patent GB-117932-A (GB)
Title: Improvements in Chucks for Centering and Holding Shells and other Metallic Bodies of Round Formation for the Purpose of their being Bored, or otherwise Machined.
Inventor: RUSSELL ALFRED MAURICE
IPC: B23B31/12
Filed: 1917-08-03
Abstract: 117,932. Russell, A. M. Aug. 3, 1917. Chucks.-A chuck for holding shells D and the like while being bored or machined, has an inner sleeve B upon which the shell D rests, and which has slots engaging pivoted dogs C, so that when owing to the contact of the tool with the article D, it is momentarily arrested, the sleeve B is also arrested, and by its relative movement with the main body A of the chuck, causes the dogs C to take up a more radial position, and grip the article D. The dogs C are housed in recesses in the chuck A, and are pivoted on screws c<1>. They have serrated inner edges to engage the work.
Patent GB-349230-A (GB)
Title: A new or improved method of, and apparatus for treating gases with liquids
IPC: B01D3/20
Filed: 1930-04-09
Abstract: 349,230. Treating gases with liquids. SOC. ANON. INDUSTRIA AMMONIACA and LOPEZ, F., 12, Via Zabarello, Padua, Italy. April 9, 1930, No. 11270. [Class 55 (ii).] A number of superposed chambers A surrounded by a cooling jacket G have gas inlet tubes Q surmounted by bells R which are lifted by the gas to an extent limited by stops T on the tubes. Liquid enters the top chamber through a pipe I and is discharged from successive chambers through overflow tubes 0 passing to the next lower chamber through external coiled tubing P. Passage of liquid through the gas inlets on a fall in gas pressure is prevented by the beils R the tops U of which then seal the tubes Q. The production of concentrated ammoniacal solution from gaseous mixtures containing ammonia and the separation of ammonia and carbon dioxide from mixtures at high or low pressure are referred to.
Patent GB-1181743-A (GB)
Title: Polymerization Catalyst
IPC: C08F4/68
Filed: 1968-03-08
Abstract: 1,181,743. Polymerisation catalysts. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 8 March, 1968 [9 March, 1967; 7 Aug., 1967; 18 Sept., 1967], No. 11309/68. Heading B1E. [Also in Division C3] A polymerization catalyst for α-olefins comprises the product formed by mixing (a) a halide of a metal having a lower valency than its maximum valency of the transition metals of Groups IV to VI of the Periodic Table, (b) an organoaluminium halide and (C) an ion exchange resin. Specified transition metals are Ti, V, Cr and Mo and the preferred halides are the titanium trihalides. The organoaluminium halide may be of the general formula A1R n X 3-n  where R is an alkyl group of 1 to 12 carbon atoms, X is a halogen (e.g. Cl, Br and I) and n is 1 or 1-5 or 2. The ion exchange resin may be of the strong acid or weak acid cation type e.g. sulphonic and carboxylic type resins, or preferably of the strong or weak basic anion type e.g. amine and quaternary ammonium resins in the hydroxide or the salt form. The catalyst components are usually mixed in a solvent and subjected to a heat treatment at 40C to 150C in an inert gas atmosphere.
Patent GB-1235071-A (GB)
Title: Clip-on electrical unit
IPC: H01R9/26
Filed: 1969-03-04
Abstract: 1,235,071. Electric couplings. HEGO ELECTRIC G.m.b.H. 4 March, 1969 [20 Aug., 1968], No. 11353/69. Heading H2E. A clip-on unit comprises an insulating housing 2 for mounting on a standard support bar 1, connection points in the housing for incoming and outgoing control wires and a rectangular or stepped recess 4 arranged and constructed to receive one or more exchangeable circuit boards 5 for connection of electronic elements mounted thereon. As shown, board 5 of the plug-in type engages contacts 6 which are fixed in the rectangular recess 4 although connection may be established by means of screws. The fixed contacts 6 are electrically connected to the connectors 3 which may be solder tags, plug-in or screw connectors. The electronic elements may be preceded in series by a fuse (8, Fig. 2, not shown) and the board may have contact strips on both sides. A housing having a stepped recess having mutually offset contacts spaced down its stepped sides and a circuit board, the edges of which are correspondingly stepped are also described (Figs. 4, 5, not shown).
Patent GB-727632-A (GB)
Title: Improvements in or relating to collets for machine tools
Inventor: LINZELL CECIL JOHN
IPC: B23B31/20
Filed: 1953-04-24
Abstract: 727,632. Chucks. CRAWFORD & CO. (TOTTENHAM), Ltd. Aug. 7, 1953 [April 24, 1953], No. 11378/53. Class 83 (3). A collet for machine-tools comprises a number of rigid jaws 10, Fig. 3, spaced apart around the axis of the collet by resilient members 9 to define a parallel bore 13, Fig. 4, a part 17 of the outer face 11 of each jaw lying on an imaginary cone whereby the diameter of the bore can be varied over a range of at least one-eighth of an inch by movement of the collet in a conical bore, e.g. of a chuck. The angle subtended by the part 17 at the axis of the collet is greater at the larger diameter end of the collet, whereby the bore 13 remains substantially parallel throughout the range of adjustment. The members 9 are C-shaped and are slid into grooves 21 from the smaller end of the collet, and spring rings 23, 231 in grooves 24 hold the jaws and springs assembled. Ring 231 forms an abutment for the ends of the springs 9 to lock them in the grooves.
Patent GB-275702-A (GB)
Title: Electric motor control
IPC: H02P1/54
Filed: 1926-04-30
Abstract: 275,702. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). April 30, 1926. Systems for alternating-current motors only; electric braking; safety arrangements. - The starting and braking-circuits of a number of motors running..on a common three-phase A.C. supply are so controlled that no motor may be started or braked whilst any other is being started or braked. The braking is effected by reversing the stator connections. Relays 17, 18, one in the stator circuit of each motor 4<1>, 4", control relays 19, 20, one for each motor. Each relay controls contacts a, b respectively in the circuits of contactors 6<1>, 5<1> for braking and starting the motor to which it relates. The system is described as applied to centrifugal extractors for laundries in which a door 14' is closed to start the machine. This operation closes switches 34', 37<1> the latter energizing the starting and running contactor 5'. This circuit includes an emergency stop switch 16<1>, a timer 10' driven by the machine and determining the length of run, and the contact 19<b> so that if the demand of another machine is abnormal the machine cannot start. The contactor 5<1> in closing makes its own maintaining circuit which includes the switch 34<1> and the switches 16<1> and 10'. It also closes a circuit for a forward relay 7<1> which extinguishes a ' stop ' indicator lamp on the machine makes its own maintaining circuit and prepares a circuit for the reversing (braking) contactor 6<1>. When the door is released it is latched closed with the switch 34<1> only in closed position, this controlling the circuits of the contactors 5<1> and 6<1>. The forward and reverse relays 7' and 8<1>, a magnetic releasing device for the latch 13<1> and lighting a ' run ' indicator lamp 11'. The timer 10<1> eventually opens the maintaining circuit of contactor 5<1> and the opening of this completes the circuit of the reversing (braking) contactor 6<1> which includes the contact 19<a> so that braking current cannot flow unless the demands of all other machines are below the limit. The contactor 6<1> in closing makes its own maintaining circuit, which includes a friction driven switch 9<1> closed so long as the motor is running forwards. The circuit of the reverse relay 8<1> is also closed by the contactor 6' and this makes its own maintaining circuit and prepares a circuit for the latch releasing magnet 13'. As soon as the motor runs backwards the switch 9<1> opens opening the contactor 6<1> which completes the circuit for the latch magnet 13<1>. The door 14<1> is thus released and switch 34' opens to de-energize the relays 7<1> and 8<1> and extinguish the run lamp 11<1>. The 'stop ' lamp 12<1> lights on the de-energization of relay 7<1>.
Patent GB-225461-A (GB)
Title: An improved construction of horse shoe
IPC: A01L1/04
Filed: 1924-05-09
Abstract: 225,461. Bartlett, H. A. May 9, 1924. Addition to 224,443. Composite shoes; renewable calks.-The rubber &c. cushioning means described in the parent Specification are formed as sheaths 14 which are slipped over the reduced limbs of the metal frame 11. Calks 17 having slots 18 and openings 19, through which nails are passed into the hoof are secured in undercut slots in the sheaths. The calks may have positioning lugs 20. The sheaths may stop short of the heel rods of the frame to provide spaces for metal tips.