baber/WOPTO huggingface dataset:
Patent GB-1127999-A (GB)
Title: Anthraquinone dyes
IPC: D06P3/54
Filed: 1967-08-18
Abstract: 1,127,999. Anthraquinone dyestuffs. BAD. ISCHE ANILIN- & SODA-FABRIK A.G. 18 Aug., 1967 [19 Aug., 1966], No. 38055/67. Heading C4P. The invention comprises dyes of the general formula wherein R<SP>1</SP> is an optionally substituted aromatic or heterocyclic radical and R<SP>2</SP> is H, chlorine or bromine. Preferably R<SP>1</SP> is a phenyl radical optionally substituted by halogen, C 1 - C 4  alkyl, C 1 -C 3  alkoxy or a nitro group. They are prepared by reacting an appropriate 1,2- diaminoanthraquinone with an acid of the formula HOOC-CH=CH-R<SP>1</SP>, where R<SP>1</SP> is as above, or a corresponding acid halide, aldehyde ortho ester or acetal at up to 200 C., preferably in a solvent, e.g. nitrobenzene. The dyes dye or print polyethylene terephthalate or terephthalic acid / α- dimethylolcyclohexane condensate in greenish yellow to orange shades.
Patent GB-364810-A (GB)
Title: Improvements in and relating to means of fastening the flexible laces of loose-leaf files, binders and the like
IPC: B42F13/02
Filed: 1930-12-18
Abstract: 364,810. Filing papers. PICKEN, A. 0., Frankfort Street Works, Birmingham, and BROADHURST, C. J., Ideal Works, Binsey Lane, Oxford. Dec. 18, 1930, No. 38144. [Class 146 (i).] In a loose-leaf binder or file in which a flexible lace, wire, or the like d is passed through the leaves and secured to a rigid cover or strips f, the securing means consists of a spiral spring a fixed at its centre c to the hole e in the cover f so that the end of the lace can be beneath the free end of the spring. By turning the end of the lace through one complete circle, it is gripped beneath two parts of the spring. Further, one or more of the convolutions or parts of the convolutions of the spring lie close to one another to grip the lace securely at those points.
Patent GB-956492-A (GB)
Title: Improvements relating to liquid mixing devices
Inventor: IVANOFF ALEXANDER
IPC: B01F11/00
Filed: 1961-10-25
Abstract: 956,492. Agitating liquids. HAYWARD TYLER & CO. Ltd. Oct.. 5, 1962 [Oct. 25, 1961], No. 38201/61. Heading B1C. A liquid mixing device comprises an impeller 12 with vanes 20 extending along a shaft 13, the ratio of the axial length of the vanes to the diameter of the impeller being not less than 2/5 and the product of the ratio and the number of vanes being not less than 5; and means for giving the impeller a motion of rotary reciprocation through not less than 5 degrees. Preferably the ratio is 1:1 and the angle of reciprocation 15 degrees ; a convenient number of vanes being six. The vanes may be equally spaced round the shaft or grouped, and may have an attached cylindrical shroud 22A, Fig. 9, with or without an annular end shroud 23. If the impeller is completely closed at one end by a shroud as at 21, Fig. 4, the effective length of the vanes is doubled and the minimum value of the product of the ratio and the number of vanes may be 2À5. As shown in Fig. 1 the impeller shaft 13 is detachably connected at 41 to an upper part mounted in flexible bearings 32, 33 and carrying an arm 43 which is oscillated by the motor 16, eccentric 47 and link 44. If the vanes be flexible and/or the shaft flexible in torsion, and the natural frequency of oscillation of the system close to the resonant frequency, the impeller may be made to reciprocate through an angle appreciably greater than that of the arm 43. The aperture in the cover 14 through which the shaft 13 passes may be sealed by a tube 37 flexible in torsion and secured at 38, 39 to the shaft and cover respectively. The tube may have a circular or helical bellows form or may be replaced by a third flexible bearing. The axis of the shaft 13 may also be horizontal or inclined.
Patent GB-1212428-A (GB)
Title: Process for production of polyolefins
IPC: C08F10/00
Filed: 1968-08-09
Abstract: 1,212,428. Four or more component Zeigler catalyst for olefin polymerization. SCHOLVEN-CHEMIE A.G. 9 Aug., 1968 [12 Aug., 1967], No. 38243/68. Heading C3P. α-Olefins are polymerized by contacting with a catalyst comprising (a) coprecipitated titanium and vanadium compounds, (b) an organometallic compound of Groups I to III and (c) an alkyl zinc or cadmium compound, the molar ratio of (b) to (c) being between 1: 1 and 100: 1. Component (c) may be a zinc alkyl halide or dialkyl zinc or mixture thereof. In the examples the catalysts employed are Al(C 2 H 5 ) 3  - BF 3  - TiCl 4  - VOCl 3  - Al(C 2 H 5 ) 2 Cl or Al(C 2 H 5 ) 2 F - Al(C 2 H 5 ) 2 Cl - TiCl 4  - VOCl 3  - further Al(C 2 H 5 ) 2 Cl or Ti(OC 3 H  7 ) 4 - vanadium chloride - (C 2 H 5 ) 2 AlCl - further (C 2 H 5 ) 2 AlCl, together with Zn(C 2 H 5 ) 2  or Cd(C 2 H 5 ) 2 , Al(C 2 H 5 ) 3 , and Al(C 2 H 5 ) 2 Cl, in the homopolymerization of ethylene and copolymerization with butene.
Patent GB-1373536-A (GB)
Title: Hydroxypyrimidines
IPC: C07D495/04
Filed: 1971-10-04
Abstract: 1373536 4-Hydroxy-6-arylpyrimidines PFIZER Inc 4 Oct 1971 [5 Oct 1970] 38316/73 Divided out of 1373535 Heading C2C Novel 4-hydroxy-6-arylpyrimidines of the general formula wherein R 3  is a hydrogen atom or a C 1-3  alkyl group and Ar is a phenyl group (provided that R 3  is an ethyl group); a phenyl group monosubstituted by a fluorine, chlorine or bromine atom or a methyl, methoxy, hydroxy, trifluoromethyl, carboxy, cyano, nitro, di-C 1-3  alkylamino, amino or C 1-4  acylamino group; a 3,4-dimethoxyphenyl group; a pyridyl, thienyl or furyl group optionally monosubstituted by a C 1-4  acylamino group; or a naphthyl, 2- or 3-indolyl, 2- or 3-benzothienyl or 2- or 3-benzofuryl group, are prepared (a) by treatment of an ethyl 2-R 3 - 3-Ar-3-amino-acrylate with formamide in the presence of an alkali metal alkoxide; and (b) by reaction of an ethyl α-ArCO-α-R 3 -acetate with thiourea and treatment of the resulting 2- mercapto-4-hydroxy-5-R 3 -6-Ar-pyrimidine with Raney nickel in aqueous sodium hydroxide. Pharmaceutical compositions having smooth muslce relaxant activity comprise, as active ingredient, 4-hydroxy-5-ethyl-6-phenylpyrimidine, together with a pharmaceutical carrier.
Patent GB-1522994-A (GB)
Title: Shift conversion processes
IPC: C10K3/00
Filed: 1975-09-18
Abstract: 1522994 Shift conversion process BRITISH GAS CORP 15 Sept 1976 [18 Sept 1975] 38407/75 Heading C5E CO-shift converted gases, suitable for direct methanation to substitute natural gas are prepared by introducing a synthesis gas having a CO content of at least 45% volume (dry basis) into a quench vessel to separate tarry liquors therefrom and to produce a first quenched gas having a steam/gas volume ratio of not more than 0.4:1, effecting a first shift reaction upon at least a portion of the quenched gas at a temperature of not greater than 550‹ C. to produce, after admixture with any remaining portion of the quenched gas, a first shifted gas having a CO content of not more than 45% volume, subjecting the first shifted gas to a second shift reaction at a temperature of not greater than 550‹ C. to produce a second shifted gas, and cooling the second shifted gas to separate oily liquors therefrom, the aqueous components of the tarry and oily liquors separated at the quenching and cooling stages being employed as the quenching medium for the quenching. At least part of the first shifted gas may be subjected to a second quench with the aqueous components. The first quenched gas may be divided into two streams, the first stream being subjected to a second quench, subjected to a shift reaction and then combined with the second stream to form the first shifted gas. Steam may be added to the first shift gas prior to the second shift reaction.
Patent GB-1069190-A (GB)
Title: A thermostatically-actuated mixing-valve
IPC: G05D23/13
Filed: 1965-09-09
Abstract: 1,069,190. Valves. B. K. V. PLATEN. Sept. 9, 1965 [Sept. 9, 1964], No. 38501/65. Heading F2V. A thermostatically controlled mixing valve has a mixing chamber 12 into which a hot water valve 4 and a cold water valve 5 open, a thermostat 18 disposed between the valves and a spout 30 and operatively connected by a push rod 15 and a lever plate 8 to maintain the temperature of the liquid in the spout at a pre-selected value, a handle 26 operatively connected to a closure element 40 partially obstructing liquid flow through an opening in a partition 17 both when the handle 26 is in the fully closed position and during an initial part of the opening movement of the handle, the closure element being moved to the open position after the initial part of the handle movement has taken place, and a leak path around the closure element and the push rod 15 whereby some of the liquid in the chamber 12 is allowed to escape to prevent liquid flowing between the two inlets. Rotation of the handle 26 retracts a screw 6a and permits a spindle 6b to be raised by a spring 41 until a head 6c<SP>1</SP> forming a retractable fulcrum for the plate 8 engages and lifts the element 40. In its upper position, the plate 8 pivots on fulcra 17b on the partition 17 and is inclined to an extent determined by the thermostat 18 to vary the relative flow through the two valves. A flexible capillary tube 19 connects the thermostat to a hollow container 16 surrounded by a helical fin 29 and containing a liquid with a high coefficient of expansion. To alter the setting of the thermostat, the handle 26 is used to rotate a sleeve 25 having a splined connection with a cam 21 which displaces the thermostat through a lever 22 while a spring 24 accommodates axial movement of the cam if the adjustment is made too quickly for the thermostat to follow. In a second construction, separate manual rotary controls actuate the closure element and the thermostat through screwed connections and the container 16 is provided with an additional helical fin surrounding the tube 19. The latter communicates with the space beneath a rubber diaphragm actuating a piston in a cylindrical guide provided with a circumferential recess to receive particles of rubber abraded from the diaphragm so that smooth action of the piston is maintained. The thermostat may be filled with silicon impregnated oil and a bellows may be used in place of the piston.
Patent GB-872007-A (GB)
Title: Improvements in or relating to high-speed angle handpieces
IPC: A61C1/05
Filed: 1958-11-28
Abstract: 872,007. Dental handpieces. KALTENBACH, A., and HOFFMEISTER. E. Nov. 28, 1958 [Nov. 30, 1957; Oct. 16, 1958], No. 38521/58. Class 81 (2). A dental handpiece having an air turbine in the head has continuous air and water tubes extending from the head to the rear of the handpiece but, to assist cleaning and assembly, the handle itself is divided into sections at each end.  The turbine in the head 1 is supplied with compressed air through a tube 4 communicating with a hose nipple 6 and water is supplied to a discharge nozzle 29 through a tube 5, leading from a stub tube 10. This is connected to a flexible supply pipe running through the bore of the air pipe. The neck 2 of the handpiece has a conical exterior surface 3 which fits into the complementarily shaped end 23 of the middle section 18 of the tubular handle. The rear part 16 of the handle engages and locates the part 18 by a shoulder 22 and is retained by screwing on to a collar 19 secured on the water and air tubes. At the rear of the handpiece the air tube is gripped by a sleeve 7 which is held by a flanged nut 16 and the tightening action of this nut also seals a washer 14 in a cup-shaped member 12 so as to hold the tubes securely. In a modified form of construction a ring nut is located between the two handle parts 18, 16, the latter of which is not supported on a collar 19. In this form, the nut is used to force the two parts apart, after assembly, so that, since the head 2 is secured to the tubes 4, 5 at one end while the attachment 6 is secured at the other, the whole assembly becomes locked rigid. In both forms exhaust air passes through suitable drillings to the rear of the handpiece.
Patent GB-1151999-A (GB)
Title: Rotary Control Switch
IPC: H01H21/02
Filed: 1966-08-31
Abstract: 1,151,999. Cam-operated switches. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 31 Aug., 1966 [1 Sept.. 1965; 27 May, 1966], No. 38761/66. Heading H1N. In a rotary switch having multiple cam actuated units 3, 4, Fig. 2, actuated by a common shaft 1, an end stop and detent chamber 5 has a removable cover 7 for access to end stop discs 10, 11 when the limits of movement are to be changed. In the example of Fig. 2 the discs have projections 12, 13 engageable with stop 14 on the cover 7 and have star-shaped apertures for adjustment in 45 degree steps on a square section shaft 1. In a modification plastics discs 21, Fig. 3, have stop portions 24 which may be broken away at tapered sections 25, 26 to obtain the required degree of movement between stops.
Patent GB-848431-A (GB)
Title: Improvements relating to loudspeakers
Inventor: FOUNTAIN GUY RUPERT
IPC: H05K7/20
Filed: 1957-12-13
Abstract: 848,431. Loud-speakers. TANNOY Ltd. Jan. 19, 1959 [Dec. 13, 1957; Jan. 10, 1955], Nos. 38848/57 and 1023/58. Class 40 (4). In a moving-coil loud-speaker, at least the output stage of a transistor amplifier is combined with the driver unit to constitute a single unitary component. The invention is described as applied to a re-entrant horn loud-speaker of which the horn 1 is interchangeable by employing the construction described in Specification 703,810. The driver unit 2 includes a domed diaphragm 10 driven by a speech coil (not shown) co-operating with the pole structure 11, and is enclosed in a casing 12 which is continued at 13 to enclose the amplifier 3. The amplifier components are mounted in two groups 14, 15 on a copper plate 16 constituting a partition between the driver unit 2 and the amplifier 3. The plate 16, which acts as a heat sink for the power transistor 17, is cooled by air set in a state of turbulence by the diaphragm 10. To this end the pole structure is held together by a hollow tube 20, as described in Specification 703,809, through which tube the air passes. The plate 16 may be provided with holes or louvres so that the air circulation may extend to the cavity bounded by the plate 16 and the cover 13.
Patent GB-1143267-A (GB)
Title: Process for preparing improved ammonium nitrate explosive compositions
Inventor: WILSON JOHN SHIRLEY
IPC: C06B45/32
Filed: 1966-08-31
Abstract: 1,143,267. Explosive compositions. DOW CHEMICAL CO. 31 Aug., 1966, No. 38899/66. Heading C1D. A water-resistant explosive composition is prepared by blending porous particulate ammonium nitrate with 0À5 to 2% by weight of a Mg, Sr, Ba, Al, Ga, In, or Tl salt of an aliphatic 8-24 carbon atom carboxylic acid, adding a hydrocarbon liquid in an amount of 4-8% by weight of the total composition, and mixing to form a water-resistant grease coating on the ammonium nitrate particles. A suitable carboxylic acid salt is Al oleate, stearate, or tallate. The hydrocarbon component may be kerosene, diesel oil, fuel oil, lubricating oil, or crude oil. The coated ammonium nitrate may be mixed with an aqueous solution of ammonium nitrate to provide a paste-like or pourable slurry ; guar gum or karaya gum may be present as a thickening agent. Addition fuels which may be added are sugars, alcohols, amines, amides, Mg, Al, or alloys thereof; Na or K nitrate may replace part of the ammonium nitrate.
Patent GB-1408905-A (GB)
Title: Sinewave generator
IPC: G06F1/035
Filed: 1972-08-21
Abstract: 1408905 Digitally controlled sine wave generators PETTY-RAY GEOPHYSICAL Inc 29 Aug 1972 [27 Aug 1971] 38961/72 Heading H3H A digitally controlled frequency swept sine wave generator comprises a first clock generator which, via means including a divider, produces digital words representing coordinates of the wave, a second clock generator which, via a second divider, controls the means so as to produce the frequency sweep and a digital-toanalogue converter for converting the words to a sine wave. In the seismic testing generator of Fig. 2 the starting frequency is inserted into a start frequency register 26, a sweep range signal is inserted into a register 18 and a sweep duration signal is inserted into a register 22. The frequency range is divided into the duration times the frequency of the second clock (IR) to provide a rate of change of frequency clock signal. A start frequency is entered into a register 26 and its contents are progressively modified by the rate of change clock. The output of the register is divided into the second clock frequency (TPR) supplied to a time period register multiplied by the number of ordinates to be produced in a cycle and a "slope clock" is thus generated. This is converted in a counter and slope generator into words which are derived from a read only memory and which indicate the ordinate heights, the words being subsequently converted into a sine wave in a D/A converter 38. The 2<SP>5</SP> bit causes the counter to reverse after each quarter of a cycle and the 2<SP>6</SP> bit causes the polarity to change after half a cycle (Fig. 5, not shown) so that a full cycle is produced. Provision is made for the output amplitude to rise and fall at the beginning and end of the sweep at a desired rate (Fig. 6, not shown).
Patent GB-1532367-A (GB)
Title: Devices for controlling the speed of a vehicle
IPC: F02D29/02
Filed: 1977-09-20
Abstract: 1532367 Automatic control of speed VDO ADOLF SCHINDLING AG 20 Sept 1977 [23 Sept 1976 23 Oct 1976] 39137/77 Heading G3R In an automatic vehicle speed regulator, a throttle 6 is controlled according to the difference Xw between actual and desired speeds, and a periodic frequency signal Xz is applied to either, or both of the actual and desired speed signals. The periodic frequency signal, which is said to vary the gain of the controller 3, 5 as a function of the difference Xw, may be of constant or varying frequency, of sinusoidal or sawtooth form.
Patent GB-1488061-A (GB)
Title: Cosmetic compositions containing derivatives of 2-phenyl-benzofurane
IPC: C07D307/80
Filed: 1975-09-25
Abstract: 1488061 Sunscreen compositions L'OREAL 25 Sept 1975 [26 Sept 1974] 39422/75 Heading A5B [Also in Division C2] Sunscreen compositions comprise at least one 2-phenyl-benzofurane derivative of formula (I): in which R 3  represents H. -CO-R 1  or -CHOHR 1 , each of R 4 , R 5 , R 6  and R- independently represents H or -O-R@, with the proviso that at least one of R 3 , R 4 , R 5 , R 6  and R 7  is other than H, R 1  represents -CH 3  and R, represents C 1-4  alkyl, and a vehicle which can form a continuous film and is suitable to be spread on the skin. Suitable vehicles are lanolin, petrolatum, glycerol, polyethylene glycol, triglycerides of fatty acids, isopropyl palmitate, myristate or stearate, oleyl oleate, butyl stearate, glycerol monostearate, fatty alcohols, organic or inorganic waxes, or animal, vegetable or mineral oils. Other vehicles are aqueous alcohols and oil-alcohol mixtures. The compositions may take forms such as emulsions, solutions, lipstick, gels, lotions or aerosols or sprayable foams with a propellant in an aerosol-producing container. Other ingredients include propyl gallate, benzyl salicylate, and nordihydroguaiaretic acid.
Patent GB-1177490-A (GB)
Title: Methods and Apparatus for Detecting Variations in Gross Momentum Thrusts
Inventor: JOHNSON CARROLL EDWIN
IPC: F02K9/96
Filed: 1967-08-29
Abstract: 1,177,490. Dynamometers; measuring jet thrust electrically. C.E. JOHNSON. Aug.29, 1967, No.39502/67. Headings G1N and G1W. The gross momentum thrust of a jet engine is measured by measuring the tension in a wire 13 stretched transversely across the nozzle and either compensating for variation in the slope of the wire adjacent its support points or maintaining this slope constant. In one embodiment, Fig. 1, the wire is guided by pulleys 15 from a sensing element 17, preferably an electric strain gauge, to a screw jack 19 that can be driven by a motor 25 under the control of a three-position micro-switch 31 actuated by an arm 33. The arm 33 forms part of a slope detector 35, which co-operates with the motor 25 and jack 19 to maintain a constant slope. In the embodiment of Fig.7 (not shown) a slope detector operates an indicator instead of controlling the slope. To avoid errors due to the drag coefficient of the wire, which is a function of the Mach number, the wire is placed at or near the vena cantracto where the Mach number is approximately one and remains constant at all thrust levels when the engine operates in the choked condition. Accordingly, with a convergent-divergent nozzle, Fig.3 (not shown) the wire is inserted through opposed apertures (79) formed in its throat. The apertures are large enough for the wire to have freedom of movement and a flexible circular sealing element (91) is secured to the wire near each aperture to prevent egress of gases. For an engine whose flow fields are not symmetrical and uniform, several wires may be used, Fig.6 (not shown) for detecting and averaging the variations in gross momentum thrust.
Patent GB-1125124-A (GB)
Title: Improved mould and methods for its production and for its use in precision casting
Inventor: LIRONES NICK GEORGE
IPC: B22C1/16
Filed: 1965-09-16
Abstract: 1,125,124. Graphite casting moulds. HOWE SOUND CO.-SUPERALLOY GROUP. 16 Sept., 1965, No. 39611/65. Heading B3F. [Also in Division B5] In a method of making a mould using a disposable, e.g. wax pattern, the pattern is wetted by dip coating with an aqueous solution of solids comprising graphite flour and colloidal graphite and whilst still wet the coating is covered by a stucco of graphite particles, the sequence being repeated until a desired wall thickness has been built up. Alternatively after the first few graphite dip coats and stuccoing, the pattern may be wetted with a ceramic dip coating comprising a binder and a ceramic flour and stucco until the wall thickness has been built up. At least half the wall thickness may be formed by the ceramic coating. A suitable dip coat composition comprises colloidal graphite having a particle size less than 1 micron, graphite flour having a particle size less than 200 mesh, the colloidal graphite being present by weight from 0.5 to 10% of the total colloidal graphite and graphite flour, an emulsifying agent e.g. gum tragacanth, or other hydrophillic colloid such as gum gelatins, alginates and an anionic wetting agent, e.g. sodium heptadecyl sulphate. The graphite stucco added to the dip coated pattern has a particle size less than 35 mesh but more than 150 mesh. When the mould is formed the wax pattern is removed by heating in an oven or steam chamber or by steam jet and the mould is then fired at a temperature above 800‹ F. Firing and dewaxing the pattern may be carried out concurrently, the firing of the mould being carried out in an inert and preferably reducing atmosphere.