baber/WOPTO huggingface dataset:
Patent GB-839707-A (GB)
Title: Improved compositions for use in dyeing threads, filaments, fibres, fabrics and the like
Inventor: BASHFORD LESLIE ARTHUR
IPC: D06P1/653
Filed: 1957-09-19
Abstract: A composition for use as a carrier in dyeing (see Group IV (c)) comprises a soap, water, a water-miscible alcohol having a boiling-point above 75 DEG  C., and a cyclohexyl phenol, a substituted cyclohexyl phenol, an octyl phenol or an octyl cresol, the weight of the soap being from 40 to 80% of the weight of the substituted phenol in the mixture.  Specified soaps, preferably with a titre of 20-40, are the alkali-metal soaps derived from olive-, coconut-, palm nut- or cotton-seed-oil fatty acids.  Specified alcohols are n-propyl-, iso-propyl- and tertiary butyl-alcohols. Specified substituted cyclohexyl phenols are methyl cyclohexyl phenol, dimethyl cyclohexyl phenol, menthyl phenol and bornyl phenol.ALSO:A composition for use as a carrier in dyeing threads of, for example, cellulose triacetate, polyacrylonitrile or polyethylene terephthalate with dispersed acetate dyestuffs comprises a soap, water, a water-miscible alcohol having a boiling point above 75 DEG C., and a cyclohexyl phenol, a substituted cyclohexyl phenol, an octyl phenol or an octyl cresol, the weight of the soap being from 40 to 80% of the weight of the substituted phenol in the mixture. Specified soaps, preferably with a litre of 20-40, are the alkali metal soaps of olive-, coconut-, palm nut- or cotton seed-oil fatty acids.  Specified alcohols are n-propyl-, iso-propyl- and tertiary butyl-alcohols.  Specified substituted cyclohexyl phenols are methyl cyclohexyl phenol, dimethyl cyclohexyl phenol, menthyl phenol and bornyl phenol.  The composition may be added to the dyebath or to a predyeing bath. Specifications 803,293 and 838,735 are referred to.
Patent GB-621204-A (GB)
Title: Improvements in or relating to textile yarn winding machines having automatic bobbin changing mechanism
IPC: B65H67/06
Filed: 1945-11-06
Abstract: 621,204. Winding yarns. BRUGGER, A. Nov. 6, 1945, .No. 29515. [Class 120 (ii)] A yarn-winding machine with automatic bobbin exchange mechanism, including an endless conveyer chain which moves step by step in a vertical direction, has the conveyer chain formed of pockets articulated directly to each other or arranged on one or more endless bands, ropes or chains, the conveyer chain being moved by sprockets having a tooth spacing corresponding to the pocket spacing and being located between two walls serving as bobbin positioning stops, one of which forms a movable closure member for the bobbin pockets. In one modification, Fig. 1, semi-circular pockets 7 are linked into a conveyer chain passing round guide elements 9, 10, the upper element 10 being moved by a pawl to the extent of one pocket when doffing and donning take place. The conveyer chain is enclosed in a casing 6 having a door at the front made, preferably, of transparent material. The position of the door with respect to the rear wall of the casing may be adjusted to accommodate various lengths of bobbins. An opening 16 in the casing 6 allows bobbins to be removed from the pockets 7 by forked levers 25 adapted to swing individual empty bobbins into line with the bobbin-holder of the spindle 2, after release of a full bobbin therefrom which falls to a box 47 having a bottom comprised of a trap-door 46, which may be caused to open at desired intervals. In a second modification, Fig. 4, the chain of pockets 7 and casing 6 may be swung to the left, pivoting on the shaft 5, to position an empty bobbin adjacent the opening 16 into line with the spindle 2. A tiltable tray 57 receives the discharged full bobbins.
Patent GB-394366-A (GB)
Title: Improvements appertaining to tilting or tipping apparatus for the bodies of road vehicles
IPC: B60P1/16
Filed: 1931-10-24
Abstract: 394,366. Tipping-vehicles. EDWARDS, H., EDWARDS, F., and EDWARDS, S., Springfield ; Garage, Bradford Street, Bolton. Oct. 24, 1931, No. 29524. [Class 108 (i).] In tipping-apparatus for road vehicles reciprocating hydraulic pumps or rams with their cylinders are mounted within a liquid-supply tank which is mounted to oscillate and on which the telescopic hydraulic tipping rams or tubes are mounted. The hydraulic means comprises a cylinder d securely mounted on a bracket g fixed to the base of the pressure fluid container 4 and two telescopic tubes or rams a, b adapted to be successively operated by the pressure fluid. The ram b is secured to a cap or sleeve f which is connected to the vehicle body by trunnions h<1> in a bracket h. The cap f is connected to the trunnion h<1> by a ball connection h<2>, Fig. 7. The fluid pump, as shown in Fig. 3, comprises four plunger pumps 5, the plungers of which are actuated by cams 6 on a shaft 7 which is operated in any suitable manner. The pump is mounted on the fluid container base and delivers fluid under pressure to a duct q past non-return valves p. The duct q communicates with the hydraulic cylinder d by a passage q<2>. The body is lowered by means of a valve 11 releasing the pressure. The fluid container 4 is mounted to oscillate in bearings 9, 9a secured to the chassis members. In a modification the fluid pump may comprise two plungers only, which are operated by a hand lever.
Patent GB-1105184-A (GB)
Title: Improvements in or relating to parametric amplifiers
IPC: H04J3/20
Filed: 1965-07-13
Abstract: 1,105,184. Parametric amplifiers; transistor negative resistance circuits. SIEMENS A.G. 13 July, 1965 [14 July, 1964], No. 29573/65. Addition to 999,231. Headings H3B, H3T, H4K and H4R. In a parametric amplifier of the type described in Specification 999,231, in which a signal sample is applied periodically through separate switches S1, S2 to a variable reactance coil Ll when the reactance has one value and is released at a later time when the reactance has a different value, a compensating current is supplied to a tapping Z on the coil, arranged so that no magnetization of the coil results from the compensating current, the magnitude of the current being such that there is no reflection of the signal at the input during amplification. The compensating current may be derived from a two-terminal negative conductance network (Fig. 2) including a pair of transistors, resistors and four separate potential sources. The arrangement is such that, as the potential of the terminal of the network which is connected to the tapping Z on the variable reactance coil Ll varies, so the current supplied varies. Alternatively (Fig. 3) a second variable reactance coil Lq may be connected to the tapping on the main coil L1. Input and output capacitors C1 and C2 are provided and form a series resonant circuit with L1 and a parallel resonant circuit with Lq. It is arranged that during the sampling period, when switches S1 and S2 are closed, one circuit oscillates for an even number of half-cycles while the other oscillates for an odd number of half-cycles. It is shown that this results in the charges on capacitors being interchanged during the sampling period, the polarities of the charges being unchanged when the series resonant circuit oscillates for the odd number of halfcycles but the polarities being reversed when the parallel resonant circuit oscillates for an odd number of half-cycles. By providing pumping energy to the two coils such that the inductances of the coils vary exponentially with the same time constant, the signals appearing on Cl and C2 at the end of the sampling period are amplified equivalents of the signals on C2 and C1, respectively, at the beginning of the period. Preferably the inductances of the coils are equal, and the capacitances of Cl and C2 are equal.
Patent GB-1338883-A (GB)
Title: Disazo dyestuffs their preparation and use
IPC: C09B31/047
Filed: 1972-06-23
Abstract: 1338883 Disazo dyes TOMS RIVER CHEMICAL CORP 23 June 1972 [23 June 1971] 29606/72 Heading C4P The invention comprises disazo dyes of formula where A 1  is H, Cl, Br, CF 3 , or C 1 -C 4  alkyl or alkoxy; B 1  and B 2  are H, Cl, Br, or C 1 -C 3  alkyl or alkoxy; R is H, Cl, Br, F, CF 3 , or C 1 -C 4  alkyl or alkoxy; R 1  and R 2  are C 2 -C 6  hydroxyalkyl, C 1 -C 6  cyanoalkyl; C 2 -C 6  alkoxyalkyl; C 1 -C 6 -Cl- or Br-alkyl; C 1 -C 6  alkyl or optionally substituted benzyl or phenethyl. The dyes may be prepared by stepwise diazotization and coupling. An unsulphonated aniline may be used as starting material and subsequently sulphonated at any stage in the process. The dyes give red and violet shades on natural and synthetic polyamide fibres.
Patent GB-845496-A (GB)
Title: Improvements in or relating to three-phase heating elements for electric resistance furnaces
IPC: H05B3/14
Filed: 1958-09-16
Abstract: 845,496. Electric furnace heating elements. SIEMENS-PLANIAWERKE AKTIENGESELLSCHAFT FUR KOHLEFABRIKATE Sept. 16, 1958 [Sept. 16, 1957; Aug. 18, 1958], No. 29678/58. Class 39(3). A three-phase star connected heating. element for an-electric furnace comprises three bars of which portions 2 fit and are cemented into a connecting member 4 of the same material as the said portions. The cement consists of silicon carbide provided with a tar-containing binding agent which is converted into silicon carbide by heating the element in the presence of silicon containing vapours. Each bar is provided with a clip 7 which rests on a ceramic plate 8 and current supply clips 6 are also secured to the bars; the member 4 may have an additional support in the furnace chamber. The bars may be connected by a disc shaped member 4, Fig. 5, and the element made rotatable about its longitudinal axis for changing the heat distribution. A heating element, Fig. 6, comprises a tube having slits 1<SP>1</SP> which extend to a portion 51. Portions 4<SP>1</SP> of the element may be impregnated with metal or metal alloy to increase conductivity where the supply connections are made. In Fig. 8, the slits 1<SP>11</SP> are helical in form and the supply connection portion is thickened by a ring 9<SP>11</SP> pushed on to the tube. If the tube is produced by moulding the ring may be moulded simultaneously therewith. Silicon carbide, metallic boride, molybdenum dicilicide, metal and metal alloy are specified for the heating elements.
Patent GB-520168-A (GB)
Title: Improvements in or relating to engine-turning gear
IPC: A01D34/68
Filed: 1938-10-13
Abstract: 520,168. Turning-gear. BARNETT, C., and BARNETT, W. Oct. 13, 1938, No. 29733. [Class 7 (v)] An engine starter applicable to the engine of a lawn mower or other agricultural or horticultural implement comprises a power-storing spring 2 connected through a unidirectional clutch 8, allowing the spring to overrun, to an intermediate member 22 connected in the engine shaft 14 through a second unidirectional clutch. 13 allowing the engine to overrun. The member 22 is held by a detent 26 while the spring is being wound through reduction gearing 34, 35 and a chain drive to a wheel 38. The detent 26 is then released by means of a lever 30, to which is connected a fork 39 for sliding the gear 35 out of mesh with the gear 34. The spring then drives the engine shaft 14 through the clutches 8, 13 until the engine starts and overruns the member 22. As shown, the clutches 8, 13 are roller ratchet clutches, the members 20, 21 of which are mounted on a shaft 19 supported in bearings 12, 18 in the clutch casings, and the member 22 is rigidly mounted between the members 20, 21.
Patent GB-648067-A (GB)
Title: Improvements in or relating to electrode holders
IPC: B23K9/28
Filed: 1948-11-16
Abstract: 648,067. Electrode holders. ROCKWELD, Ltd., and HAMILTON, J. L. Nov. 16, 1948, No. 29764. [Class 39(iii)] An electrode holder for manual arc welding comprises a holder 10 having a plug extension 21 for plugging into a standard cable socket 11 which forms an insulated handle for the holder 10. The holder consists of two spring-pressed jaws 12 and 13, pivoted together at 14, jaw 12 carrying the plug extension 21, and jaw 13 having an insulated grip 26. The extension 21 is adapted to plug into a metal sleeve 9 in the socket 11, a pin and slot connection 24, 25 serving to prevent relative rotation between plug and socket.
Patent GB-1020409-A (GB)
Title: Opposed cylinder variable piston stroke internal combustion engine
IPC: F02B71/00
Filed: 1964-07-24
Abstract: 1,020,409. Opposed cylinder I.C. engines; I.C. engine valves; fuel injectors. C. BARGERO. July 24, 1964, No. 29793/64. Heading F1B. In an opposed-cylinder I.C. engine having pistons interconnected by a first rack 4, meshing with a toothed wheel 5, a second rack 7 meshing with wheel 5 is connected to a crank-pin 11a, Fig. 3 (not shown) which is radially displaceable in the output shaft 12. The engine is started by rotation of shafts 16 or 17, the mixture being ignited on the initial stroke by spark plug 27 to cause the first working stroke of piston 3 during which exhaust port 28 is uncovered. The exhaust and scavenging stroke of piston 3 is thereby started by air flowing from pump cylinder 20 in which piston 19 has just completed the compression stroke. Air flow opens valve 22, Fig. 4 (not shown), against spring 23 and simultaneously draws fuel through nozzle 24. When valve 22 is closed, the axial bore 25 is cut off from connecting pipe 26 by movement of the stem 122 into cup 125. Check valve 124 prevents back flow of gases from cylinder 1. The compression stroke takes place until ignition either by the spark plug or by compression ignition. The stroke length of pistons 3, 3<SP>1</SP> is effected by adjustment of the crankpin 11a.
Patent GB-796306-A (GB)
Title: Improvements in or relating to annular heads for magnetic recorders
IPC: G11B5/235
Filed: 1956-10-01
Abstract: 796,306. Magnetic recording heads. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 1, 1956 [Oct. 4, 1955], No. 29850/56. Class 40 (2). An annular magnetic recorder/reproducer head comprises at least two circuit parts of sintered ferromagnetic oxide 1 and 2 and one airgap 4 which is filled with a glass 6 having a coefficient of expansion within 5 per cent of that of the ferromagnetic material at its normal operating temperature (ambient) and preferably not differing by more than 10 per cent up to the softening temperature of the glass. Examples are given of suitable compositions of ferromagnetic oxide and glass which may be used together. An additional quantity of glass (shown shaded under the air gap) improves the mechanical strength of the structure. The glass is introduced into the air-gap as a foil, the assembly is heated to the softening temperature of the glass and then allowed to cool under a pressure sufficient to achieve the required gap width.
Patent GB-298947-A (GB)
Title: Improvements in or relating to pipe connections
IPC: F16L13/04
Filed: 1928-10-16
Abstract: 298,947. Vereinigte Stahlwerke Akt.- Ges. Oct. 17, 1927, [Convention date]. Joints formed by welding.-In a pipe joint wherein the flange c on one pipe abuts against and is bent over the smaller flange b on the adjacent pipe and is welded thereto, the abutting surfaces of the flanges are of spherical form so as to permit non-axial alignment of the pipes. The centres of the said spherical surfaces are adapted to lie on the axes of the pipes. Specification 259,617 is referred to.
Patent GB-623759-A (GB)
Title: Improvements in pencils
IPC: B43K21/22
Filed: 1946-10-07
Abstract: 623,759. Propelling pencils. AMERICAN LEAD PENCIL CO. Oct. 7, 1946, No. 29900. Convention date, March 25, 1944. [Class 146(iii)] A pencil of the type in which a releasable clutch is provided to hold the lead in writing position and to permit forward movement of the lead when it is released, is provided with a separable unit comprising a point section having a bore and a lead-gripping collet concealed and secured within the bore. The point section 9 which may be externally knurled is screwed to a lead tube 7 secured in a pencil casing 5 and carries a collet which holds a lead 13 in writing position. The collet has a flanged end 17, resilient arms 18 and an inclined surface 19 co-operating with a similar surface 14 in the point section 9. A shoulder 20 on the collet engages a shoulder 16 formed internally of the point section to secure the collet therein. In modifications the collet may be secured by a sleeve or a split ring inserted in the point section.
Patent GB-207813-A (GB)
Title: Improved vapourising apparatus for internal combustion engines
IPC: F02M21/10
Filed: 1923-11-28
Abstract: 207,813. Akt.-Ges. f³r Patentverwertung. Dec. 2, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Vaporizers, external.-Vaporizing apparatus for - use with light and heavy fuel mixtures, either singly or in combination, is so constructed that the degree of heat imparted to the mixture is dependent upon the nature of the fuel being used. The vaporizing chamber 3, 4 has a partition 2 extending nearly the whole of its length to deflect exhaust gases entering at 11 and leaving at 12 and which heats tubes 8 supported by end plates 9, 10. Light-fuel mixture is supplied through a tube 14 and heavy-fuel mixture through a tube 15, the tubes being provided with throttle valves 20, 21 respectively. The tubes deliver into a chamber 5 provided with a throttle valve 22 and communicating at one end with chamber 6 and at the other with chamber 7 and outlet 13 to the engine. The fuel nozzles are shown at 18, 19. A rod 23 is connected directly to the throttle lever 24 and, through a lost motion device comprising an adjustable nut 26, to the lever 25 of the heavy fuel throttle 21. The lever 25 is connected by a rod to the lever of the valve 22, the latter lever being loaded by a spring. The valve 22 closes as the valve 21 opens. At starting, the valve 20 is opened, admitting light-fuel mixture which passes direct through chambers 5 and outlet 13 to the engine. After a predetermined movement of valve 20, the valve 21 is opened and thus a mixture of fuels is admitted. The valve 20 then commences to close and valve 21 to open wider, at the same time closing valve 22 and causing the heavy-fuel mixture to traverse chamber 5 towards the end 6 and then the heated tubes 8 to the outlet 13. The valve 22 could be connected through a lost motion device with the valve 20.
Patent GB-864875-A (GB)
Title: Bromomethyl methylol phenols
IPC: C07C37/62
Filed: 1958-09-18
Abstract: In order to increase the tear-resistance of butyl rubber, there is added, in the processing thereof, a composition prepared by the action of hydrogen bromide on a mixture of formaldehyde and a 4-alkyl phenol (the alkyl group having 4 to 20 carbon atoms), the average bromine-content of the composition being between 1 and 9% (see Group IV(b)).  The compositions may include mixtures of simple compounds such as 2bromomethyl-4-alkyl-phenol, and low polymers such as:- <FORM:0864875/IV (a)/1> wherein n=0, 1 or 2.  In an example gaseous hydrogen bromide is introduced into a mixture of aqueous formaldehyde and paradiisobutyl phenol in toluene and the mixture reacted under reflux for 3 hours to give a product corresponding on average to the tetramer.  Another process for preparing the same type of compositions is the subject-matter of Specification 864,876.ALSO:The invention comprises compositions prepared by the action of gaseous hydrogen bromide or aqueous hydrobromic acid on a mixture of formaldehyde and a 4-alkyl phenol (the alkyl group containing 4 to 20 carbon atoms), the average bromine content of the compositions being 1 to 9%, preferably between 4 and 5%.  The compositions may include mixtures of simple compounds such as mono- and di-bromomethyl-4-alkyl-phenols, and low polymers such as <FORM:0864875/IV (b)/1> wherein n=O, 1 or 2.  The reaction can take place either in the presence or absence of water or organic solvents, such as toluene or gasoline.  In an example, aqueous formaldehyde is added to a solution of para-düsobutyl phenol in toluene; and gaseous hydrogen bromide is introduced into the mixture.  The mixture is then heated under reflux for 3 hours.  Water is removed from the product by distillation under reduced pressure.  The product contains 9% of bromine, and has a molecular weight corresponding to a tetramer.  The compositions of the invention are useful in the processing of butyl rubber (see Group IV(a)).  Another process for preparing the same type of compositions is the subject-matter of specification 864,876.
Patent GB-465342-A (GB)
Title: Improvements in or relating to electric busbars or like main conductors
IPC: H02G5/10
Filed: 1935-10-30
Abstract: 465,342. Electric cables. REYROLLE & CO., Ltd., A., and BOWN, F. J. Oct. 30, 1935, No. 29951. [Class 36] [Also in Group XIII] A hollow bus-bar &c. mounted in, and insulated from, a casing is cooled by air, oil, or water, &c. circulated therethrough either by natural ventilation or by a pump, the circulation being controlled automatically in accordance with the temperature of, or the current carried by, the conductor. The bus-bar A may be mounted in a metal casing B filled with a bituminous compound and provided with a T-connection C, the ends of the bus-bar and the connection being insulated from the cooling fluid inlet and outlet pipes by tubes E formed, e.g. of paper treated with a phenolformaldehyde condensation product or other synthetic varnish. The bus-bar may be cooled by fluid circulated by a pump H, Fig. 2, connected to a cooler L and driven by a motor J supplied with current from auxiliary mains M controlled by a switch having a coil N, the current in which is regulated by a thermostat G subject to the temperature of the fluid leaving the bus-bar. In a modification, the bus-bar is formed in sections each provided with its own cooling system. In another arrangement, the cooling fluid is circulated through the sections by a pump H, Fig. 5, connected to a valve P having independently controlled outlets P<1>, P<2>, P<3>, to the individual sections. In addition to the thermostatic control, the pump may be regulated by an electric relay set to operate the pump when the bus-bar carries an unusually heavy load.
Patent GB-980775-A (GB)
Title: Preparation of foamed lead
Inventor: RATCLIFF NIGEL ALEC
IPC: B22F3/11
Filed: 1962-08-03
Abstract: Low density lead having a micro-cellular structure is produced from lead powder coated with a substance such as lead carbonate which liberates a gas when heated to below the melting temperature of lead, working the powder, e.g. by extrusion, to break up the coating substance and finally heating below the melting point of lead. Alternatively the lead powder may be mixed with a powder of the gas-producing substance and the powder mixture worked and sintered. The powder is extruded cold or hot at a temperature below the gas liberating temperature.  The lead powder is coated with lead carbonate by treating with carbon dioxide and water vapour or by exposing the powder to air.  Specifications 892,597 and 970,259 are referred to.
Patent GB-716136-A (GB)
Title: Preparation of methionine hydantoin
Inventor: HOLLAND DAVID OLIVER
IPC: C07D233/72
Filed: 1951-12-21
Abstract: Methionine hydantoin is prepared by reacting methionine nitrile with carbon dioxide in the presence of an aliphatic amine containing not more than twelve carbon atoms.  The amines may be primary, secondary or tertiary and are preferably alkylamines, alkanolamines or alkyl alkanol amines; they are preferably used in amounts of at least one mol. per mol. of nitrile.  The hydantoin may be hydrolysed to methionine by alkaline hydrolysing agents without being isolated.  In an example, carbon dioxide is bubbled through an aqueous alcoholic solution of the nitrile containing triethylamine, yielding 90 per cent of the hydantoin; trimethylamine, b -diethylaminoethanol, diethylamine, tri-n-butylamine, triethanolamine, diethanolamine and isopropylamine may be used similarly.  According to the Provisional Specification, the amine may be any tertiary amine of a basicity greater than that of methionine nitrile.