baber/WOPTO huggingface dataset:
Patent GB-881893-A (GB)
Title: Arylpiperidine derivatives
IPC: C07C45/00
Filed: 1958-04-22
Abstract: The invention comprises aroylalkyl piperidinols of the formula <FORM:0881893/IV (b)/1> and acid addition salts and non-toxic quaternary salts thereof wherein Ar is a halophenyl (e.g. fluoro-, chloro-, bromo-oriodo-phenyl), methoxy-, ethoxy- or dimethoxy-phenyl or thienyl radical or a monocyclic aromatic hydrocarbon radical of less than 9 carbon atoms, Ar1 is a halophenyl radical or a monocyclic aromatic hydrocarbon radical of less than 9 carbon atoms (e.g. phenyl, tolyl or xylyl), and Alk is a lower alkylene radical of 3-6 carbon atoms, e.g. propyl, and their preparation by reacting a compound of the formula Ar-CO-Alk-Halogen with a 4-Ar1-piperidin-4-ol.  The compounds are used pharmaceutically, suitably in the form of salts such as the hydrohalides, sulphates, phosphates, sulphamates, citrates, lactates, maleates, malates, succinates, tartrates, cinnamates, acetates, benzoates, gluconates and ascorbates.  They also form quaternary salts with quaternating agents such as alkyl, aralkyl, alkenyl and hydroxyalkyl halides, sulphates and aryl-sulphonates.  Aryl haloalkyl ketones of the formula Ar CO.Alk.Halogen used as starting materials are made either by treating benzene or a substituted benzene, with a haloalkanoyl halide, by the Friedel-Crafts reaction, using aluminium chloride or a milder catalyst, such as stannic chloride, or by reacting an aryl magnesium bromide Grignard reagent with a haloalkanonitrile, followed by acid hydrolysis of the adduct.  4-Aryl piperidin-4-ols, in which the aryl group may be substituted according to the definition of the group Ar1 above, are made by treating a 4-aryl-1:2:3:6-tetrahydropyridine, obtainable by condensing an a -methylstyrene with ammonium chloride and formaldehyde, with hydrogen bromide to give a 4-bromo-4-aryl-piperidine which is hydrolysed with aqueous sodium hydroxide.  a -Methylstyrenes of the formula Ar1C(CH3) : CH2, such as p-fluoro-a -methylstyrene, are made by treating the corresponding acetophenone with methyl magnesium bromide and dehydrating the product or by treating the Grignard reagent derived from an aryl halide; e.g. p-chlorophenyl magnesium bromide with acetone and dehydrating the resulting carbinol.  The Provinional Specification relates to compounds of the above general formula wherein Ar is a phenyl, alkylphenyl, halophenyl, alkoxyphenol or thienyl radical, Alk is a 1:3 propylene radical and Ar1 is a phenyl, halophenyl or alkyphenyl radical. Specification 881,894 is referred to.
Patent GB-220081-A (GB)
Title: Improvements in or relating to wind-screens for motor-vehicles
IPC: B60J1/00
Filed: 1923-05-12
Abstract: 220,081. Arrol-Johnston, Ltd., and Eastwood, G. W. May 12, 1923. Wind-screens.- A motor-vehicle wind-screen adapted to serve either as a side-screen or as one section of a transverse screen for the passengers in the rear seat is supported on a bracket 23 pivotally mounted upon the free ends of two rods 19, 20 of different lengths, which are pivoted about axes 17, 18 in a fixed bracket 13 on the side of the vehicle, the distance between the axes 17, 18 being greater than that between the axes 21, 22 in the bracket 23. These distances and the lengths of the arms 19. 20 are so arranged that in the normal or side position of the screen 27 with the arms 19, 20 parallel to the side of the vehicle the line joining the axes 21, 22 is also parallel to the side of the vehicle, while the screen moves from this position to the transverse position shown in Fig. 3 without inconveniencing the passengers in the rear seats. A clamping-member in the bracket 23 operated by a screw or nut 30 engages the free ends 21, 21 of the arms 19, 20 to lock the screen in any adjusted position. The screen 27 is carried between a lower channel-section member 24 formed integral with the bracket 23 and an upper channel-section member 26 carried by a vertical pillar 25 supported on the bracket 23.
Patent GB-565691-A (GB)
Title: Improvements in thermostatically controlled piezo-electric crystals
IPC: H03H9/08
Filed: 1943-08-09
Abstract: 565,691. Piezo - electric crystals. GENERAL ELECTRIC CO., Ltd., and LEWER, S. K. Aug. 9, 1943, No. 12843. [Class 40 (v)] A piezo-electric resonator plate is mounted in a thermostatically-controlled enclosure set to a temperature at which the frequency of the plate is a maximum or minimum. One of the electrodes is separated from the crystal by a gap which can be adjusted so as to alter the frequency of the crystal so as to exhibit a maximum or minimum at a temperature within the range actually maintained by the thermostat. This gives very great constancy of the resonant frequency. A circular BT-cut quartz plate of 25 mm. diameter having a bevelled rim has a maximum frequency of about 7 megacycles at 55‹ C. A range of adjustment of one electrode from contact with one face to a distance of .05 mm. changes the temperature at which the maximum occurs by about 3‹ C., thus allowing the maximum to be placed within the operating range of the thermostat.
Patent GB-1395113-A (GB)
Title: Detecting obscuring matter on transparent screens
IPC: G01N21/94
Filed: 1973-03-16
Abstract: 1395113 Photo-electric detection systems STANDARD TELEPHONES & CABLES Ltd 16 March 1973 12910/73 Heading G1A Apparatus for detecting obscuring matter, e.g. dirt, condensation, on a lamp glass or windscreen of a vehicle, comprises means for directing a  modulated optical or infrared beam on to the screen or glass and means for detecting correspondingly modulated radiation back-scattered from the screen by obscuring matter, thereby to eliminate spurious signals, warning device and/or a cleaning apparatus being operated when such backscattered radiation is detected. As shown a light-emitting diode 1, a photodetector 6 and a control circuit 7 are provided. Several screens may be monitored using a single source and a system of light guides. A further embodiment utilizes the effective change in total internal reflection caused by back-scattering resulting from contamination. In this mode light is directed into the edge of the glass.
Patent GB-1492427-A (GB)
Title: Apparatus for generating electric power by wave energy and dissipating waves
IPC: F03B13/14
Filed: 1975-03-27
Abstract: 1492427 Utilizing wave energy Y MASUDA H FUKADA and T IWATA 27 March 1975 12956/75 Heading F1S Apparatus for generating electrical power by water wave energy comprises a buoy 11 of a polygenal circular or V-shaped plan which has its largest dimension longer than the wavelength of the waves which the apparatus is intended to utilize, the buoy being provided with a plurality of downwardly open air chambers 17, 18, 20, 22 &c. which in use of the apparatus are closed by the water and electric power generators 36 are operated by variations of air-pressure within the air chambers caused in use of the apparatus by vertical motion of water within the chambers. The air chambers are arranged to operate in pairs with an air turbine 34, 35 driven electric generator 36 operatively disposed therebetween. Each chamber has one valve 33, 39 operable to the atmosphere and the two chambers of each pair utilize respectively rising and falling waves for operating the air turbines. The buoy may be rectangular. As shown in Fig. 1 the buoy 11 is flexibly moored to the sea bottom by many anchors 12.
Patent GB-528259-A (GB)
Title: Improvements in means for fixing stay or like rods to mudguards or the like
IPC: B62J15/02
Filed: 1939-05-02
Abstract: 528,259. Cycle &c. mudguards &c. CRANFORD MANUFACTURING CO., Ltd., and CLARKE, J. May 2, 1939, No. 13035. [Class 136 (i)] Means for adjustably securing a stay rod or wire to a mudguard, luggage-carrier &c. comprises a clamping in the form of a plate or disc having a flanged or stiffened edge, a clamping pin passing through a perforation in the plate or disc, and two notches in the flanged or stiffened edge, .on one side of the clamping pin, through which the rod or wire passes to enable the clamping member to clamp the rod or wire to the mudguard &c. A mudguard bridge-piece is provided with end lugs 3, against each of which a stay rod 4 is clamped by means of a sheet-metal washer 5 and a screwed clamping pin 6, which passes through a perforation in the lug 3 and engages a central screw-threaded hole 7, Figs. 5 and 6, in the washer 5. The washer 5 has a flanged or stiffened edge 8, which has two notches 9, on one side of the central hole 7, for the passage of the stay 4. The lug 3 is preferably off-set from the central transverse plane of the bridge-piece 1, so that the end of the stay 4 does not engage the underside of the bridge-piece. In a modification, the stays are similarly clamped direct to the sides of the mudguard. In a further form, a U-shaped double stay is secured to the centre of the mudguard by a similar washer and clamping-screw.
Patent GB-1380237-A (GB)
Title: Surface treatment of chromium steels
IPC: C23C28/00
Filed: 1973-03-19
Abstract: 1380237 Coated steel substrates NATIONAL RESEARCH CORP 19 March 1973 [20 March 1972] 13037/73 Heading B2E [Also in Division C7] Cr steel substrates having 5-20 wt. % Cr, e.g. stainless steels, are coated with, in order, (a) a layer of Fe or Ni having a thickness of less than 1Á, (b) a layer of Ti of 0.1-Á thickness and (c) a coating of boron carbide of 10-50Á thickness. The boron carbide (B 4 C) has a C content of 15-30 wt %. The coatings are applied by vapour deposition. In an Example, coatings (b) and (c) are applied by electron beam bombardment of crucibles containing Ti and B,C respectively, and coating (a) is applied by electrically heating a Ni-plated tungsten wire. During the coating process, the substrate is heated to 250-700C. The process is used to improve the erosion-resistance of aircraft parts, e.g. turbine blades and airframe components.
Patent GB-1009917-A (GB)
Title: Improvements in or relating to thienosteroids and their preparation
IPC: A61K31/58
Filed: 1963-04-02
Abstract: The invention comprises thieno-(41, 31, 21-4, 5,6)-5-ene-3-keto-steroids having a 51-alkyl group with less than 5 carbon atoms, and their preparation by subjecting a 6-alkanoylthio-4-ene-3-keto-steroid wherein the alkanoyl group has less than 6 carbon atoms to a dehydrative ring closure by the action of a base in a non-aqueous medium.  Bases specified are alumina, alkali metal alkoxides, and alkali metal hydrides, including complex hydrides with boron or aluminium.  The compounds of the invention have antigestagenic and antidecidomatogenic activity.  Specification 1,009,918 is referred to.
Patent GB-1063786-A (GB)
Title: Improvements in or relating to podophyllum derivatives and their preparation
IPC: C07D307/92
Filed: 1964-03-31
Abstract: The invention comprises compounds of formula <FORM:1063786/C2/1> wherein each of R4, R5, R6 and R7 signifies a hydrogen atom, or a methyl group, R1 is a hydrogen atom or a hydroxy group, each of R2 and R3 represents hydrogen or R2 together with R1 or R3 signifies a carbon-carbon bond, with R3 or R1, respectively, signifying a hydrogen atom, and their acetyl derivatives, which are prepared by splitting the methylenedioxy ring of lignanlactones of formula <FORM:1063786/C2/2> where R15 and R17 represent methyl groups, if desired, simultaneously or subsequently converting alkoxy radicals present in the C ring to hydroxy groups, and, if desired, if R1 is H and H in position 2 is in the a -position, splitting off the elements of water to produce a compound with a double bond in the 3,4-position.  When acetylating a compound with a 3,4-double bond, and one or more free hydroxy groups to form the acetoxy derivative in the presence of a base, the double bond is displaced from 3,4- to 2,3-position. Various alternative processes are specifically described.  Pharmaceutical compositions, which have mitosis inhibiting properties, and which may be administered enterally, parenterally or intranasally, contain as active ingredients compounds of the first general formula above or their acetyl derivatives.
Patent GB-596456-A (GB)
Title: Improvements relating to snap-action operating mechanism suitable for the actuation of electric switches
IPC: H01H13/36
Filed: 1945-05-25
Abstract: 596,456. Snap-action switches; retractive switches. JENNINGS, H. W. K. (First Industrial Corporation). May 25, 1945, No. 13154. [Class 38(v)] In a snap-action switch an apertured spring-blade 24, which may be of beryliumcopper, is mounted at one end on an insulating block 14, and has a projecting tongue 34, which engages a depression 46 in one end 44 of a C-shaped compression spring-blade 42, which at its other end 45, engages the yoke 38 of a flexible U-shaped portion of the blade 24. The limbs 36, 37 engage V-slots 51, 52, in the H-shaped end 45 of the blade 42, Fig. 3, and the shoulders 53, 54 engage the sides 29, 31 of the blade 24 so as to urge a contact 58 on to a contact 61. When the tongue 34 is moved by a plunger 57, it carries the end part 44 past a dead-centre, whereupon the end part 45 snaps over, so that the shoulders 55, 56 strike the blade-sides 29, 31, and move the contact 58 against a stop 59. The resilience of the tongue 34 produces a snap-action return movement, but in a non-retractive arrangement, the tongue 34 lies in the plane of the blade 24. The blade 24 may be downwardly bowed at its free end, so as to ensure that contact-pressure is maintained until the contacts actually separate.
Patent GB-726127-A (GB)
Title: Improvements relating to composite bearing materials
IPC: B22F7/00
Filed: 1953-05-12
Abstract: A composite bearing material comprises a steel backing member to which is bonded an anti-friction facing of sintered and rolled porous ferrous material including by weight 0.25 to 1.25 per cent phosphorus and 0.4 to 0.9 per cent combined carbon.  The iron facing which contains about 1 per cent phosphorus and 0.6 to 0.8 per cent combined carbon, may be combined with elements such as copper, nickel, chromium or tin, or mixtures thereof in quantities not exceeding 10 per cent by weight of the iron.
Patent GB-961361-A (GB)
Title: Catalytic compositions
Inventor: GASSON EDWARD JAMES
IPC: C07C5/48
Filed: 1962-04-06
Abstract: The composition of the parent Specification which consists of Sb2O4 in combination or admixture with SnO2 is modified in that the atomic ratio of tin to antimony lies between 2-1 and 16-1 and additionally the composition contains 5-50% Sb2O3, the mixture having been heated to 550-1100  DEG C. Examples are given.
Patent GB-132532-A (GB)
IPC: G01R1/20
Abstract: 132,532. Paulin, J. C. Sept. 12, 1918, [Convention date]. Integrating.-In electric apparatus for giving the instantaneous value and the time-integral of a pressure, speed, or force as measured by any suitable instrument, wherein the strength of an electric current is controlled according to changes in the value measured, means are provided for compensating for the effect of changes of temperature on the measuring-instruments. The instruments are arranged in parallel, and resistances composed of different metals are arranged in series in the main circuit, the resistances 9, 10 described being formed respectively from metals having large and negative temperature coefficients such as iron and constantan. The instruments employed, an ammeter 4 and an ampere-hour meter 3, are arranged in parallel with a rheostat 1 over which a contact 2 is moved by the speed &c. measuring device, the resistances 9, 10 being included in the main circuit. To compensate for the varying resistance in the rheostat 1, a similar, oppositely-arranged rheostat 12 is provided in the main circuit over which a contact 11 on the arm 2 moves, the requisite resistances at different points being obtained experimentally. A change-over switch s is provided comprising two spring contacts 6, 14 insulated from one another and so arranged that on operation the circuit of the meter 3 is broken, the meter 4 acting as a volt meter for testing the battery, suitable resistances 17, 18 in series similar to the resistances 9, 10 being included in the circuit, together with an adjustable resistance 8. The coils of the instruments 3, 4 and the resistances 1, 5 may be made of constantan. Specification 122,094 [Class 69 (i), Hydraulic apparatus &c.], is referred to.
Patent GB-1601614-A (GB)
Title: Gallium arsenide semiconductor device and production thereof
IPC: H01L29/73
Filed: 1978-04-05
Abstract: A process for epitaxially forming a layer of gallium arsenide having a first conductivity on a substrate of gallium arsenide having a second conductivity in an enclosure having an inner liner comprised of a silicon compound, comprising decomposing arsine to form arsenic; chemically reacting a first quantity of hydrogen chloride and gallium to form gallium chloride, the gallium chloride reacting with the arsenic to form gallium arsenide on the substrate, a portion of the first quantity of hydrogen chloride remaining unreacted and tending to cause silicon contaminants from the liner to be deposited on the substrate; and providing a second quantity of hydrogen chloride into the enclosure which serves to initially etch, and hence clean, the outer surface of the substrate prior to the formation of gallium arsenide thereon, and simultaneously tends to inhibit the formation of silicon contaminants on the substrate, the second quantity and the first quantity having a preselected ratio such that the growth rate of the gallium arsenide layer on the substrate is greater than the etching rate of gallium arsenide due to the second quantity of hydrogen.
Patent GB-133368-A (GB)
IPC: F03G7/10
Abstract: 133,368. Noonan, H. J. July 4, 1918. Self-driving machines.-Consists of means to sustain undiminished the motion of weighted wheels. Trains of endless-chain gear, Fig. 1, are provided right and left of the wheel A with peripheral load D, and the extreme shafts X, Y are connected up by a train of endless-chain or other gear, Fig. 3. Fly-wheels as P, Q, R are provided on shafts of the trains or on lateral shafts.
Patent GB-1143213-A (GB)
Title: A process for the production of carboxylic acids
IPC: C07C51/16
Filed: 1966-03-25
Abstract: 1,143,213. Carboxylic acids. ETHYL CORP. 25 March. 1966 [25 March, 1965; 22 Oct., 19651, No. 13343/66. Heading C2C. Aromatic or aliphatic carboxylic acids are prepared by oxidizing a hydrocarbon with gaseous oxygen in the presence of a mixture of acetic and propionic acids, which forms a single phase liquid system with the hydrocarbon. Oxygen containing gases such as air may be used with a catalyst such as manganese stearate or tert.-butyl hydroperoxide. Straight chain hydrocarbons or cyclic hydrocarbons, e.g. hexadecane, octadecane and cyclohexane. Examples describe the preparation and purification of acids from hexadecane, octadecane, and cyclohexane. Adipic acid is the product of the process using the latter hydrocarbon. An aftertreatment by hydrogenation is also described.
Patent GB-773392-A (GB)
Title: Improvement in starting and regulating method for free-piston compressors and apparatus for the starting and regulation of such compressors
IPC: F04B31/00
Filed: 1953-01-08
Abstract: 773,392. Compressors. WACHSMUTH, E. A. Jan. 8, 1953, No. 13352/56. Divided out of 773,391. Class 8(1) A free-piston motor-compressor including at least one pair of motor pistons 4, 5 each having a compressor piston 39, 40 reciprocating with it, has means for delivering varied quantities of fuel to effect actuation of the motor pistons, means for varying the quantity of air pumped by the compressor pistons, means governed by the discharge pressure against which the compressor pistons deliver air for effecting an increase in quantity of fuel delivered proportional to the increase in work load effective until the discharge . pressure, reaches the lower limit of adesired pres-; sure spread within which the motor-compressor is intended normally to operate, and means effective thereafter and until the upper limit of such pressure spread is reached and also governed by the discharge pressure against which the compressor pis-. tons deliver air for progressively reducing. the quantity of air delivered as pressure increases, and for concurrently progressively reducing the quantity of fuel injec- . ted. Air delivered by the compressor has entry via conduits 89 and 89<SP>1</SP> to cylinders 41 and 43. The compressor is started byigniting a powder charge in the space D when the pistons 4, 5 are in their adjacent " dead centre positions. Air delivered to cylinder 41 moves the piston 83 against its spring 85 to rotate a lever 87 about its end 90 to move a rack element. R to increase the delivery of the fuel pump P to the motor pistons until the piston 83. reaches the end of its stroke which occurs at the lower limit of said pressure spread. Pressure on the piston 95 then overcomes the force of the spring 97 and the piston moves to rotate a lever 88 which moves a rack element R<SP>1</SP> to cause a device 42 to hold open the inlet valves 36 (Fig. 1) for a portion of the discharge stroke of the compressor pistons (see Specification 773,391). This movement of the rack element R<SP>1</SP> causes the lever 87 to rotate about the now stationary point 86 and move the rack element R to reduce the delivery of the, fuel pump P.
Patent GB-106042-A (GB)
Title: An Improved Process and Apparatus for Transforming Heavy Petroleum Products into Lighter Products.
Inventor: DEAKIN FRANK BOYDEN
IPC: C10G9/42
Filed: 1916-09-20
Abstract: 106,042. Deakin, F. B., (Roth, P., and Venturino, M. E.). Sept. 20, 1916. Hydrocarbons, cracking.- Crude petroleum and heavy petroleum products are transformed into lighter hydrocarbons by spraying them into a retort containing petroleum residue, asphalt, or the like heated to a temperature above the boiling-point of the injected oils. In one form of apparatus, crude petroleum is passed through a series of retorts 1, 6, 9, 12, which may be duplicated. The benzine and the lighter products distilling up to 200‹ C. are removed in the retort 1 and the kerosene and lubricating-oils in the retort 6. A further small proportion of oils is removed in the retort 9 which is kept at a temperature 10-20‹ C. below that of the retort 6, the residual oil flowing to the retort 12 being thus prevented from boiling. The oils to be transformed are sprayed into the retort 12 by means of a compressor 19 and a spraying-nozzle 20, the resulting vapours flowing to a condenser 22. In the plant shown, the oils thus transformed are the distillates derived by leading the vapours from the retorts 6, 9 to condensers 13, 16 furnished at their base with a water-separating tank 15.
Patent GB-608596-A (GB)
Title: Improvements relating to homeopathic preparations
IPC: A61K39/00
Filed: 1945-05-29
Abstract: A homoeopathic preparation is obtained by allowing germs in mucous taken from a human mucous membrane to multiply on a solid medium e.g. agar or veal broth, planting the predominant germ therefrom on a second solid medium, and allowing to multiply, washing the germs therefrom by .5 per cent sodium chloride solution, centrifuging (at 2,000 r.p.m.) and decanting the supernatant fluid, centrifuging the fluid at greater speed than previously (4,000 r.p.m.), adding a metal salt, e.g. of uranium, barium or silver, to precipitate the proteins but not to affect the enzymes, filtering or centrifuging, adding a preservation solution, e.g. dilute phenol, and then adding known homoeopathic drugs appropriate to the disease to be treated.  Drugs mentioned are ammonium chloride, arsenicum nitricum, dulcamara, hydrastis canadensis, potassium and calcium carbonate, calcium phosphate, colchicum autumnale, echinacea angl., gaulthenia, rhus toxicodendrum, phosphoric acid, silver nitrate, benzoic acid, sanarthrite, thuja occidentale, belladonna stramonium, cicutum rurosa, chelidonium, hydrocyamic acid, nux vomica, phosphor, sepia, zinc, white arsenic, digitalis, hepar sulphuras calcicus hammamelis, secale cornutum, magnesium phosphate, copper acetate, sulphur, iron, sodium chloride, pulsatilla nigricaus, chinin arsen, nitric acid.