baber/WOPTO huggingface dataset:
Patent GB-1505621-A (GB)
Title: Preparation of 2-amino-n-butanol
IPC: C07C215/08
Filed: 1976-02-03
Abstract: 1505621 2-Amino-1-butanol SOC CHIMIQUE DE LA GRANDE PAROISSE 3 Feb 1976 [4 Feb 1975 13 Nov 1975] 04265/76 Heading C2C 2-Amino-1-butanol is made by (1) reacting 1 mole of formaldehyde with 1À0-1À1 moles of 1-nitropropane in an aqueous medium free from organic solvents and in the presence of a tertiary amine or a quaternary ammonium hydroxide as catalyst, (2) separating the 2-nitro-1-butanol from the resulting reaction mixture and (3) reductively hydrogenating the latter in the presence of a hydrogenation catalyst. In preferred embodiments of stage (3), the 2-nitro-1- butanol is neutralized with CO 2  prior to hydrogenation, the hydrogenation is carried out in the presence of methanol using as the hydrogenation catalyst either Raney nickel or palladium and/or platinum, and the hydrogenation gas is 85% hydrogen and 15% nitrogen.
Patent GB-321125-A (GB)
Title: Improvements in or relating to coin runways
IPC: G07D1/00
Filed: 1929-02-08
Abstract: 321,125. Brandt, E. J. Feb. 8, 1929. Coin-handling appliances; money-delivering apparatus.-Coin runways and receiving trays, particularly for use in coin delivery machines, are provided with a lining comprising a bottom layer 9 of soft woven or unwoven fabric, such as felt wool or hair, and a covering 10 of celluloid or non-metallic composition.
Patent GB-306278-A (GB)
Title: mprovements in or relating to loud speaking apparatus for wireless or other purpose
IPC: H04R1/02
Filed: 1928-02-11
Abstract: 306,278. Marriott, E. J., and French, C. Feb. 11, 1928. Screens, furniture.-A baffle for use with loud speakers of the large diaphragm type may serve as a draught or like screen. As shown in Fig. 6, two panels 4 are hinged to a central panel 2 having an opening 8 for the diaphragm. The panels 4 may be turned back slightly to act as a screen.
Patent GB-197418-A (GB)
Title: Improvements in plug cocks
IPC: F16K31/60
Filed: 1922-02-14
Abstract: 197,418. Matthews, E. G. Feb. 14, 1922. Plug-cocks; handles.-To avoid injury to a plug cock when used in the underground workings of mines, the plug is operated by a key inserted through the side of the casing, and there are no external projecting parts. The casing 1 is provided with a slot 3 through which the reduced end 5 of a handle 6 is inserted into a recess 4 in the plug 2. The slot is of such a length that it permits the plug to be turned from the closed to the fully open position. A cap 8 is screwed into the casing, and its under surface is recessed at 9 opposite a recess 10 in the top of the plug. A ball 11 transmits pressure from the cap to the plug to keep the latter in position. In an alternative construction, Fig. 5, the ball 11 is replaced by a spring 12.
Patent GB-1057107-A (GB)
Title: Improvements in or relating to heating systems
IPC: F24H1/40
Filed: 1964-02-03
Abstract: 1,057,107. Tube joints; cleaning tubes. H. VIESSMANN. Feb. 3, 1964 [Feb. 2, 1963], No. 4493/64. Headings F2G and F2N. [Also in Division F4] In a heating system having axially parallel, ribbed heat-exchanging tubes 2, 3, each pair of tubes is interconnected by a joint 1, the walls 4, 5 of which converge towards the outer portion 6. A boring tool for cleaning the tubes and joint operates on the axis of the tube 2 until it abuts against the wall 4 and is then forced aside to the position 7; the diameter of the tool is such as to traverse the joint beyond the centre line 9 as it arrives at the working position 7. In a modification, the tubes of each pair are expanded to form corresponding halves and then welded together.
Patent GB-179649-A (GB)
Title: Improvements in or connected with stop cocks or valves
IPC: F16K31/50
Filed: 1921-02-09
Abstract: 179,649. Butler, B., and Butler, W. Feb. 9. 1921. Lift valves.-A stop valve of the kind described in Specification 145,148 is provided with a removable seat a screwed into the web b<1>, Fig. 1, by means of a tool engaging notches a<1>. A good jcint is made by providing a conical part on the valve seat and a groove b<2> in the web. The seat is made with an external conical face c' on the valve member c. A projecting head c<2>, Figs. 1 and 4 on the valve engages a slotted gap d<1> in a barrel d which is guided to move longitudinally only, and is operated by a screwed spindle. The lower part of the cover e of the casing forms a cylindrical estension e<2> which guides the valve to its seat. A seating surface e<4> is provided on the cover to engage with the part d<2> to prevent leakage when the valve is open. Engagement of the parts c, d is facilitated by providing a gap e<3> in the sleeve e<2>. In a modification, Fig. 6, the valve seat may be internally coned and the valve externally coned. In another modification, the valve seat may be integral with the web, b<1>.
Patent GB-853860-A (GB)
Title: Improvement in silencers for the exhaust from internal combustion engines
IPC: F01N1/20
Filed: 1959-12-11
Abstract: 853,860. Exhaust silencers. STEWART, C. H. Dec. 11, 1959, No. 4706/56. Class 7(2). Sets of spring-loaded slats a acting as valves control side outlets b in a rectangular section or cylindrical silencer e, the two inner slats of each set having holes to allow passage of exhaust to the slat or slats outside them, and the exhaust finally escaping from under the slat edges. Lugs f prevent wandering of the slats a, the spring loading on which is adjustable by nuts h on bolts c mounted in bridges k across the outlets b, there being two sets of bolts c along the silencer length. One end of the silencer e is connected by a ferrule to a vehicle exhaust pipe and the other end is movable for cleaning and held in position by spring loading sufficiently strong to yield only on backfiring.
Patent GB-162439-A (GB)
Title: Improvements in or relating to golf clubs
IPC: A63B53/14
Filed: 1920-02-17
Abstract: 162,439. Kinsman, H. J. Feb. 17, 1920. Golf clubs; handles; shafts.-A golf-club shaft is reduced in thickness from about the middle towards the handle portion and additional weight is applied to the free end of the handle. The grip portion is built up with wool felt 5, 6 covered with leather or rubber wrappings, a gap 7 being left to assist the hold on the club. The grip portion 5, 6, 7 may be made in the form of a sleeve of rubber, leather, cork, felt, &c. and afterwards secured upon the shaft. A weight 4 preferably a ring of lead, is secured to the end of the handle. The club head may be spliced to the shaft and bound with groups of binding 3 spaced apart.
Patent GB-1438141-A (GB)
Title: Method of plant growth
IPC: C07F9/02
Filed: 1973-01-31
Abstract: 1438141 Plant growth regulation IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Jan 1974 [31 Jan 1973] 4767/73 Heading C1B [Also in Division C3] A process for regulating plant growth comprising treating a plant with an organopolysiloxane containing one or more silicon-bonded ethyl, propyl or isopropyl groups substituted in the # position by a halogen, a phosphonato group or a sulphonium group. The examples illustrate the effect on tomato plants (e.g. the promotion of ripening), and the increased production of latex from rubber plants. Reference has been directed by the Comptroller to Specification 1,393,112.
Patent GB-722277-A (GB)
Title: Supporting frame for endless conveyors
IPC: B65G21/14
Filed: 1952-02-22
Abstract: 722,277. Endless conveyers. DEMAG AKT.- GES. Feb. 22, 1952 [Feb. 27, 1951], No. 4792/52. Class 78 (1). In a supporting frame for a conveyer having an endless band built-up of plates secured end-to-end and supported by.rollers or wheels running on rails, the rail sections 1, 2 forming the upper and lower runways respectively, are supported at their ends in columns 5a and the sections 1, 2 are secured in spaced relationship by plates 3. Each column consists of two girders 5 of angle-section secured together by short girders 6 of angle-section welded thereto, the columns on opposite sides of the conveyer being secured together by girders 7. Fishplates 8, 9 for bridging the gaps between the ends of the rail sections at the upper and lower runs of the conveyer respectively, are welded to the girders 6 so as to form with them U-shaped channels in which are inserted the ends of the sections 1, 2. The fish-plates 8 are formed with U-shaped slots 10 open at the top to receive projections 4 extending laterally from the ends of the sections 1. The fish-plates 9 are welded to the members 6 which are supported on transverse plates 12 welded to the girders 5, 7.
Patent GB-229703-A (GB)
Title: Improvements in or relating to axles with roller bearings
IPC: B60B37/04
Filed: 1925-02-21
Abstract: 229,703. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Feb. 21, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Roller bearings. - A wheel axle a with roller bearings d has the radially outer races of the roller bearings located in the ends of a sleeve b extending over the entire length of the axle, theends of the sleeve being closed by covers e.
Patent GB-613939-A (GB)
Title: Manufacture of cupriferous disazo-dyestuffs
Filed: 1946-02-18
Abstract: Cupriferous disazo dyestuffs are manufactured by the action of an agent yielding copper on an asymmetrical disazo-dyestuff of the general formula <FORM:0613939/IV (c)/1> wherein R represents the residue of a dihydroxynaphthalene monosulphonic acid bound to the azo group in a position vicinal to a hydroxy group, and R1 represents the residue of a monohydroxynaphthalenesulphonic acid bound to the azo group in a position vicinal to the hydroxy group and free from amino and substituted amino groups.  The treatment may be carried out under relatively mild or relatively intense conditions depending on whether it is desired to hydrolyse the methoxy groups.  The products dye cellulose (e.g. cotton or regenerated cellulose) in blue tints. Suitable components for the preparation of the starting materials are, on the one hand (corresponding to R), 1 : 3 : 6-, 1 : 6 : 3-, 1 : 6 : 4-, 1 : 8 : 4-, 2 - 6 : 4-, 2 : 7 : 3- and especially 1 : 7 : 4-and 2 : 8 : 6- dihydroxynaphthalenesulphonic acids, and, on the other hand (corresponding to R1), 1 : 3-, 1 : 4-, 1 : 5-, 2 : 4-, 2 : 5-, 2 : 6-, 2 - 7- and 2 : 8- naphtholsulphonic acids and corresponding di- and tri-sulphonic acids.  Examples describe the treatment of dyestuffs from certain of these components with ammoniacal copper solution at 85-90 DEG  C., and the dyeing of cotton reddish-blue with the copper compound of the dyestuff 2 : 8-dihydroxynaphthalene - 6 - sulphonic acid \sM dianisidine --> 2 - naphthol - 6 - sulphonic acid, from a bath containing sodium carbonate and, in the later stages, sodium sulphate.  The Specification as open to inspection under Sect. 91 comprises also the coppering of dyestuffs of the general formula above in which R1 may contain a second hydroxy group (iu which case it may be identical with R) or an amino or substituted amino group.  A further example describes the action of ammoniacal copper solution at 85 DEG -95 DEG C. or at 50 DEG  C. on the symmetrical dyestuff dianisidine --> 2 : - dihydroxynaphthalene - 6 sulphonic acid (2 mols.), and additional R1 components specified are 2 : 5 : 7 -, 1 : 8 : 4 - and 2 : 8 : 6-aminonaphtholsulphonic acids, N-methyl, N-hydroxyethyl-, N-phenyl, N-(p- and m-sulphophenyl)-, N-(p-methoxyphenyl- and N-(41-hydroxy - 31 - carboxyphenyl) - 2 : 5 : 7 - acid, 1 : 8 - aminonaphthol - 3 : 6 - and 2 : 4 - disulphonic acids and 1 : 8 - dihydroxynaphthalene - 3 : 6 - disulphonic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1350312-A (GB)
Title: Superheater bypass structure for a vapour generator
IPC: F22G5/20
Filed: 1972-02-03
Abstract: 1350312 Steam generators WESTING- HOUSE ELECTRIC CORP 3 Feb 1972 [18 March 1971] 5022/72 Heading F4A [Also in Division F1] In a combined gas turbine and steam turbine power plant, a gas turbine power plant (10), Fig. 1 (not shown), has its exhaust used to heat a superheater coil 95 through which saturated vapour is passed to be superheated, there being provided a by-pass conduit 100 to permit a portion of the vapour to by-pass a portion 95b of the superheater coil. Water condensate from steam turbine plant (13) is passed by pump (37) to a de-aerator (42) and thence by way of low pressure boiler (46) and economizer (59) to a high pressure boiler (67) or 93, from which steam passes to superheater coil 95 and by-pass conduit 100. The steam is then fed to high pressure steam turbine (26), its temperature depending upon the setting of by-pass valve 101. Additional heating is provided by auxiliary burners 106.
Patent GB-1326548-A (GB)
Title: Sound generating apparatus
IPC: B06B1/04
Filed: 1970-09-02
Abstract: 1326548 Vibrators BRAXTON CORP 2 Sept 1970 [2 Sept 1969] 5174/73 Divided out of 1326547 Heading G5J [Also in Divisions F2 and H2] Sound producing apparatus comprises an elongated elastic column constrained against transverse motion, an electromagnetic motor providing periodic longitudinal forces on an end of the column at the resonant frequency of the column, a system controlling the amplitude of the longitudinal motion of the column and an extended surface transverse to an end of the column. The column 20 comprises two tubes 42, 72 joined by a coupling 52, Fig. 3 (not shown) (see Division F2). At the top of a tube 72 is a cone 80 connected to an A.C. energized coil 16 which co-operates with a D.C. energized electromagnet 14 to form an electromagnetic motor 12, Fig. 2 (not shown) (see Division H2). At the bottom of tube 20, an assembly of truncated cones 66, 90 which forms the subject of the Specification 1,326,547, couples the vibrations of the tube to a diaphragm 24 which feeds the sound into a chamber 36 where it may be used to promote coalition of suspended particles. The apparatus is symmetrical about the axis of column 20 the mass of the vibrating part is symmetrically arranged around the centre of coupling 52 where the column is supported. The frequency of A.C. applied to the armature 16 is matched to the longitudinal resonant frequency of the column 20 with a node at the centre and an accelerometer is provided to reduce the current when the design limit of the vibrations is reached.
Patent GB-1100155-A (GB)
Title: Improvements in or relating to electric thermal storage heaters
Inventor: BLAKE LESLIE REGINALD
IPC: F24H7/02
Filed: 1964-02-07
Abstract: 1,100,155. Pressure relieving devices. BRUSH ELECTRICAL ENGINEERING CO. Ltd. 7 April, 1965 [7 Feb., 1964], No. 5187/64. Heading F2V. [Also in Divisions F4 and H5] In an electric thermal storage heater in which a liquid, e.g. water, is heated by an immersion heater during off-peak periods, a rubber bag 33 within a heat insulating chamber collapses if the pressure within the chamber rises to a dangerous value and causes a cover 36 to pivot about a lip 37 against the action of a spring 39 so that a loop 45 is moved off the reduced end of a post 46 allowing a cut-out switch 29 to open and cut off the electrical supply to the immersion heater. An open ended tube 34 prevents the bag 33 collapsing laterally.
Patent GB-850161-A (GB)
Title: Invisible marking of materials
IPC: G09F3/00
Filed: 1945-03-01
Abstract: 850,161. Radioactive substances. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 1, 1945 [March 13, 1944], No. 5191/45. Class 39(4). [Also in Group XV] Materials are invisibly marked by applying an artificial radioactive substance which is similar in appearance to the neighbouring areas of the material. The radioactive substance is preferably one which emits predominantly beta radiation. Solutions or suspensions of the radioactive substance may be used or the substance may be added to inks, paints, primers, or adhesives used in the manufacture of laminates. The marking may be detected by the usual radiation detection means or, in the case of secret writing, by means of a photographic plate or a fluoroscope. In examples (1) an aqueous solution of radioactive barium chloride is used to write on white paper and is detected photographically ; (2) a pattern is painted on a glazed vase using a solution of radioactive cobalt nitrate and also a solution of the non- radioactive salt and the vase is then heated to form a blue cobalt oxide design ; the radioactive markings are detected with a photographic film ; (3) a solution of uranium fission products is added to black india ink and this is used to write certain words or letters of a message. The Specification as open to inspection under Section 91 refers also to the use of natural radioactive substances.
Patent GB-608316-A (GB)
Title: An improved portable liquid spraying apparatus
IPC: B05B11/06
Filed: 1946-02-19
Abstract: 608,316. Sprayers. HICKMAN, G. Feb. 19, 1946, No. 5220. Convention date, March 15, 1945. [Class 69 (iii)] In portable sprayers, especially for horticulture or disinfectants, in which, e.g. a handoperated air pump supplies a pressure air to the surface of a liquid in a container, and also delivers some air as well as liquid for mixing and continuous spraying, to a conical space 13a, the size of the space 13a can be varied or even closed up to crush and so get rid of any particle of solid matter. A rockable handle 22 effects the closing-up by screwing in a barrel 16 against the conical face 15d. Further, the amount of fluid passing up the liquid delivery pipe under pressure and through 15c can be varied by screwing in or out the needle valves 21. In addition, the supply of compressed air from the inlet 5 through a passage 12; Fig. 5, can be varied by adjusting an air control valve 24. All these combine to vary the proportion of the mixture or the fineness of the spray. The pump delivers air through a non-return valve 17.
Patent GB-681067-A (GB)
Title: Process for the production of fluorine-containing olefins
IPC: C07C17/23
Filed: 1951-03-05
Abstract: Olefinic fluorides are made by treating alkyl fluorides containing at least one fluorine atom per molecule and at least one chlorine atom at each of two adjacent carbon atoms, with an alkali metal amalgam in an alcoholic medium.  Methanol and ethanol are specified alcohols and water may advantageously be present, e.g. in amounts of about 5-60 per cent with an optimum at 30 per cent.  Sodium or potassium amalgam may be used although preferably the amalgam is formed by the electrolysis of a solution of an alkali-metal chloride in an electrolytic cell with a mercury cathode and the alkyl fluoride reacted directly therewith.  Alkali metal hydroxide formed during reaction may be neutralized with acid, e.g. hydrogen chloride.  In examples: (1) trifluorotrichloro-ethane in 70 per cent methanol is reacted with sodium or potassium amalgam to yield chloro-trifluoroethylene; (2) 1,2,2-trichloro-2-fluoro-ethane in alcohol is reacted with sodium amalgam to yield 2-chloro-2-fluoro-ethylene; (3) tetrafluoro-dichloro-ethane in 70 per cent methanol is reacted with sodium amalgam to yield tetrafluoro-ethyl, and (4) is a repeat of (1) using sodium amalgam obtained by the electrolysis of aqueous sodium chloride.
Patent GB-905364-A (GB)
Title: Silicone compositions
IPC: C01F7/441
Filed: 1960-02-15
Abstract: A room-temperature-vulcanizing siloxane composition comprises (by weight): 100 parts of at least one siloxane homopolymer and/or at least one copolymer of the formula R1R2SiO[R2SiO]xSiR2R1 in which each R is a monovalent hydrocarbon or halo-hydrocarbon radical (saturated or unsaturated), each R1 is H, an alkoxy, aryloxy or hydroxy radical and x has an average value from 50 to 10,000, with 0,05 to 2,0 parts of (a) at least one aminosilane of the formula R11nSi[NY2]4-n and/or (b) an aminosilazane of the formula <FORM:0905364/IV(a)/1> in which each R11 is an alkyl, aryl, or aralkyl radical, each Y is H or an alkyl or aralkyl radical, n is 0 or 1, a is 2 or 3,b is 0 or 1, c is 1 or 2 and m is at least 1.  The compositions may also contain fillers, e.g. basic fillers such as ZnCO3, ZnO, CaCO3, CaO, MgCO3 and MgO, which also act as curing accelerators, and inert fillers, such as diatomaceous earth, quartz flour, glass fibres, silica aerogels and fume silica, pigments flavourings and essential oils.  The compositions can be moulded, extruded, &c., for a short period of time and then be exposed to atmospheric moisture to effect vulcanization and cure.  In a typical Example (1) 0,5 pt. of MeSi(NBu2)3 was milled with 100 pts. of a hydroxy-terminated dimethyl polysiloxane of 10,500 cs. viscosity, and poured into a glass cup; the mixture vulcanized within four hours at room temperature and at a relative humidity of 65% to form a silicone rubber.  Uses: As joint sealants, dental stoppings, electrical insulation, adhesives for silicone rubber, silicone rubber coatings and as fabric and paper impregnating lacquers.
Patent GB-308430-A (GB)
Title: Improvements in doffing mechanism for spinning or twisting frames
IPC: D01H9/04
Filed: 1928-02-21
Abstract: 308,430. Suffern, W. S. Feb. 21, 1928. Doffing arrangements; spindle apparatus.-In spinning and twisting machines a plate U, normally supported during spinning on stops d, d<1> on the lifting-rail D, is arrested by fixed stops c, c' when the lifting-rail is lowered for doffing purposes, the full bobbins being then supported thereby as shown in Fig. 3 and subsequently pushed off into a trough G by the empty bobbin holder E, which disposes the empty bobbins thereon so that they are received upon the bobbin holders b when the lifting-rail is again raised into the spinning position. The supports e of the holders E are carried by brackets e<1> which are moved in a semi-circular path by cranks e<3> actuated by a wheel e<6> geared with a wheel e<@> mounted loosely on the lifter shaft d<2>. A disc on the shaft d<2> carries adjustable studs e<11>, which are so disposed as to engage a stud e<9> on the wheel e<8> to operate it to give the required movement to the supports for doffing but not to engage it during the normal lifting-movements. Stops e<13>. e<15> retain the bobbin holder brackets in their extreme positions. The bobbin carriers b are mounted on studs b<1> and pins B<1> depend from the flyers. or the bobbins may be mounted on tubes carried by fixed spindles extending throughout the lengths of the bobbins the pins B<1> being dispensed with; the latter arrangement is intended particularly for twisting-machines.
Patent GB-758034-A (GB)
Title: Improvements in or relating to electric cable joints
IPC: H02G15/18
Filed: 1954-02-24
Abstract: 758,034. Electrostatic screens for couplings. PIRELLI-GENERAL CABLE WORKS, Ltd., and HILLYARD, P. F. Dec. 7, 1954 [Feb. 24, 1954], No. 5399/54. Class 38 (1). A cable joint is screened by a sleeve 1 of braided metal wire placed over the insulator 3 of the joint and pulled axially so that it becomes lengthened and reduced in diameter to fit over the insulation 3. The ends of the sleeve are secured to the cable screens 6 by bindings 7.