baber/WOPTO huggingface dataset:
Patent GB-1356917-A (GB)
Title: Piezoelectric crystal element
IPC: H01L41/04
Filed: 1972-02-24
Abstract: 1356917 Piezoelectric crystals KISTLER INSTRUMENTE AG 24 Feb 1972 [15 March 1971] 8671/72 Heading H1E In a piezoelectric transducer consisting of quartz or isomorphous material the temperature dependency of the sensitivity in the relevant direction is minimized by arranging planeparallel force bearing surfaces at an angle of 0 to 25 degrees to a crystallographic a axis and at an appropriate inclination to the c axis. The transducer may be used in a transverse or shear mode. With the angle between the force bearing surfaces and the c axis or its complement between 10 and 40 degrees the temperature dependence of the piezoelectric coefficients d<SP>1</SP> 12  or d<SP>1</SP> 13 , when using the transverse effect is minimized. When using the shear effect the angle between the force bearing surfaces and the c axis or its complement can be between 110 and 155 degrees to minimize the temperature dependence of the piezoelectric coefficients d<SP>1</SP> 26  or d<SP>1</SP> 35 .
Patent GB-161938-A (GB)
Title: Improvements in the cylinder heads of oil engines
IPC: F02B9/10
Filed: 1921-03-21
Abstract: 161,938. Lanz, H. [Firm of], (Assignees of Huber, F.). April 15, 1920, [Convention date]. Cylinders, c o nstruction of. - The cylinder head of an oil engine comprising a combustion chamber a separated by a neck c from the cylinder is made of aluminium and water jacketed to readily dissipate the heat near the walls.
Patent GB-494576-A (GB)
Title: An improved method of and means for mounting air-cooled engines on aircraft
IPC: B64D27/00
Filed: 1937-03-24
Abstract: 494,576. Aircraft; power plant; cooling cylinders; driving-gear. RICHARD, P. A. March 24, 1937, No. 8719. Convention date, March 10, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 25, 1937.] [Class 4] [Also in Group XXVII] In aircraft having engines 2 in the wing cooled by air pass. ing through the wing, fans 20 are arranged in the wing to the rear of the engines in order to increase the pressure of the cooling air after it has performed its cooling function. In Fig. 1, the engines are arranged fanwise in conduits of a housing 4, and drive the propeller by gears 12. The air inlet 5 may have an adjustable aperture and contain a fan 17. The fan 20 has an output which is adjustable by means of byepass valves 22, the discharged gases from which can be used to supercharge the engines. The conduit 8 terminates in a slot in the wing which may be adjustable and the hot gases discharged therefrom improve the aerodynamic qualities of the wing. The fans may be driven through clutches and be of variable pitch. In a modification, eight engines are shown arranged on the circumference of a circle, and a fan is arranged on the central shaft 11<1>. In a further modification, two groups of engines arranged on different arcs drive the propeller shaft, through different gears, and this arrangement may be used for two propellers driven in opposite directions. In further modifications, the invention is shown adapted for aircraft having only one and two engines respectively and in which the walls of the outlet surround part of the fuselage to improve the aerodynamical properties thereof. In the case of one engine, it is mounted in the conduit 8. The fans may be used for propulsion. The engine exhaust gases may be evacuated through radiators, the hot air from which may be used to heat the leading edge of the wing or the cabin or to supercharge the engines or feed air to the cabin at high altitudes. The Specification as open to inspection under Sect. 91 described, an aeroplane with groups of four engines 2, Fig. 2 (Cancelled), arranged side-by-side, separated by streamlined partitions and driving a propeller 1 by gearing 12, and each group arranged in a housing 4. A fan 17 draws in air through conduit 5 and out through adjustable slot 9, Fig. 3 (Cancelled). In Fig. 8 (Cancelled), two engines 2 are arranged in conduits 16. In a modification of this form, one engine is mounted at the junction of the conduits. This subject-matter does not appear in the Specification as accepted.
Patent GB-492965-A (GB)
Title: Improvements in and relating to the production of resinous compositions
IPC: C08G63/48
Filed: 1937-03-24
Abstract: Resinous compositions are prepared by heating estolides with resins, resin esters or mixtures of substances capable of forming resins, a polyhydric alcohol being present if desired so as to obtain a neutral product.  Drying, semi-drying or non-drying oils, the corresponding fatty acids (which may be pretreated by oxidation or polymerization or treated with sulphur, sulphur chloride or chlorine) also may be present.  In examples ricinoleic acid estolide and glycerine is heated with (1) colophony, (2) phthalic anhydride, (5) phenol, aqueous formaldehyde and rosin, (6) ester gum and a resin prepared from cresol and formaldehyde, (7) colophony and linseed oil fatty acid, (8) octadecadienic acid and phthalic anhydride, (9) ester gum, (10) soya-bean oil and phthalic anhydride, and in example (4) the estolide of hydroxystearic acid is heated with glycerine, and phthalic anhydride.  Maleic anhydride, succinic anhydride, malic anhydride may be used instead of phthalic anhydride and glycol may be used instead of glycerine.  The products may be used in the manufacture of varnishes, paints, printing inks and lacquers.
Patent GB-1380133-A (GB)
Title: Detergents containing dye staining inhibitors
IPC: C11D3/30
Filed: 1972-02-25
Abstract: 1380133 Detergent compositions CIBAGEIGY AG 23 Feb 1973 [25 Feb 1972] 8776/72 Heading C5D Soap or synthetic detergent compositions comprise 20 to 40%, by weight of the dry soap or synthetic detergent composition, of a dyestain inhibitor which is (a) an organic compound containing 1 to 4 N atoms comprising a tertiary N atom and a polyglycol ether chain of at least three residues of the Formula I bound to at least one of the N atoms, either directly or through an alkylene or substituted alkylene group, the organic compound also having an aliphatic, alicyclic or alkaryl residue having at least 4 carbon atoms and not attached to the residues of Formula I and/or (b) a polymeric, quaternary ammonium compound obtained by reacting an aliphatic dihalide with an aliphatic tertiary poly-amine. Compounds (a) may have the Formula IV wherein R is an aliphatic hydrocarbon radical having at least 12 carbon atoms, m and n are each 1 or 2 and p, q and r are whole numbers such that p+q+(m+ 1)(r - 1) is at least 3 and not more than 20. Preferred compounds (a) have the formula wherein R is as in Formula IV and p+q is at least 3 and not more than 20. Compounds (b) may be the reaction product of an aliphatic dihalide with N,N<SP>1</SP>-dimethyl-hexamethylene diamine, N,N<SP>1</SP>-dimethyl tri-glycol diamine, N,N<SP>1</SP>, N<SP>11</SP>-trimethyl-diethylene triamine, N,N<SP>1</SP>,N<SP>11</SP>, N<SP>111</SP>-tetramethyl-triethylene tetramine or mixtures thereof. The compositions may be used for washing cellulosic or polyamide articles dyed with a dysetuff of poor wash-fastness while inhibiting dye staining therefrom on to undyed cotton or polyamide articles or cotton or polyamide articles dyed with wash-fast dyes.
Patent GB-1157478-A (GB)
Title: Improvements in Simulated Jet Engine Model.
IPC: F02C7/00
Filed: 1967-02-24
Abstract: 1,157,478. Model jet engine for wind tunnel testing. GENERAL ELECTRIC CO. Feb.24, 1967 [May 9, 1966], No.8836/67. Heading F1J. The invention relates to a model gas turbine jet engine having an external form geometrically similar to that of an actual engine, the model having inlet and exhaust means geometrically similar to the inlet and exhaust means of the actual engine. Means are provided within the model engine for inducing fluid-flow through the inlet means and for discharging fluid through the exhaust means, the fluid inducing means being dimensioned and operated so that during operation the model engine is both geometrically and aerodynamically similar to the actual engine. The model is adapted to be mounted on the wing or fuselage of an aircraft model for use in wind tunnel testing so that the actual conditions will be more accurately simulated. The model shown is a model of a front fan gas turbine ducted fan engine and comprises a turbine 36 mounted in a casing 28, the turbine being connected by shaft 38 to a fan 34 mounted in a duct 24. Air under pressure is supplied through a duct 42 formed in the model aircraft wing 10 and engine mounting pylon 14, the air passing to a chamber 40 which simulates a combustion chamber, the air then acting on the turbine 36 to drive the fan 34 finally discharging through propulsion nozzle 18. The fan 34 draws in air through its forward intake and discharges through its rearward propulsion nozzle 20. The fan 24 could alternatively be driven by means of an electric motor.
Patent GB-862995-A (GB)
Title: Liquid proportioning pump system
IPC: G01N31/16
Filed: 1959-03-13
Abstract: 862,995. Liquid-pressure engines. FOXBORO CO. March 13, 1959 [March 21, 1958], No. 8876/59. Class 69 (2). [Also in Groups II and XXVIII] In an apparatus for adding to a first liquid in flow a small, accurately controlled constant proportion of a secondary liquid, the mixed liquid actuates a double-acting piston having rods which serve as pistons for pumping the secondary liquid. A cylinder 32 has a piston 33, sealed by flexible diaphragms 34<SP>1</SP>, 35<SP>1</SP> and having piston rods 36, 37 operating in cylinders 38, 39 respectively. As shown, mixed liquids from the pipe 22 pass through the distributing valve 29 and enter the cylinder 32 at 49<SP>1</SP>, causing the piston 33 to move from right to left and drawing secondary liquid from the container 13 through the non-return valve 30 into the variable volume chamber 50<SP>1</SP>. At the end of its stroke the piston 33 trips the toggle lever 44 actuating the valve 29 ; mixed liquids from the pipe 22 are then directed to the left side of piston 33 causing it to move from left to right. The secondary liquid thus expelled from the chamber 50<SP>1</SP> flows through the non-return valve 31 and pipe 17 to the mixing point 16 in the pipe 10 carrying the flow of primary liquid. The mixed liquids flow through the de-bubbling apparatus 11 to the pipe 22, and thence to cylinder 32 as described above. The mixed liquids leave cylinder 32 at 49, 49<SP>1</SP> and thence pass by valve 29 to the outlet 14 through a flow controlled 27 which serves to maintain a constant rate of flow throughout the system.  The apparatus is primarily intended for use with an electrochemical system for measuring the residual volume of chlorine in water, in which the primary liquid is the sample of chlorinated water and a reagent such as potassium iodide is the secondary liquid, electrodes 23, 24 being provided for electro-chemical measurement of the residual chlorine. Reference has been directed by the Comptroller to Specification 759,424.
Patent GB-1197844-A (GB)
Title: Process for the Production of Polyurethanes.
Inventor: KALLERT WILHELM
IPC: C08G18/12
Filed: 1968-02-23
Abstract: 1,197,844. Polyurethanes. FARBENFABRIKEN BAYER A.G. 23 Feb., 1968 [28 Feb., 1967], No. 8877/68. Heading C3R. Polyurethanes are prepared by reacting a polyisocyanate, a chain lengthening agent which contains at least two hydrogen atoms which are reactive with isocyanates and a mixture of polyhydroxyl compounds of M.W. greater than 500 comprising at least 70% by weight of 1,6- hexanediol polycarbonate and not more than 30% by weight of a hydroxyl polyester synthesized from at least two glycols and one dicarboxylic acid. The polyurethanes may be prepared by a prepolymer or one-step process. Exemplified are elastomers derived from 1,5- naphthylene diisocyanate, 1,4-butane diol and mixtures of 1,6-hexanediol polycarbonate with polyesters derived from (i) adipic acid and a mixture of ethylene glycol and 1,4-butanediol, and (ii) adipic acid, 1,6-hexanediol and 2,2- dimethyl-1,3-propanediol.
Patent GB-236643-A (GB)
Title: Improvements in the treatment of cellulosic fibres, yarns and fabrics
IPC: D06M11/55
Filed: 1924-04-09
Abstract: To produce transparent, wool-like, linen, damask, crepe, and parchmented effects, natural or artificial cellulosic yarns, fibres, and fabrics are treated with sulphuric acid in conjunction with one or more sulphonic acids of the benzene or naphthalene series, or their hydroxy-substituted compounds.  The treatment may be preceded or followed by mercerizing, calendering, embossing, or other finishing processes.  Sulphonic acids of benzene, phenol, cresols. naphthols, naphthalene, and benzaldehyde are mentioned. The sulphuric acid may be mixed with the sulphonic acids and applied over the whole or to parts only of the material by spraying, stencilling, printing, or by the use of a resist &c., or the material may be treated with the sulphonic acids or with substances capable of producing them before the sulphuric acid treatment.  The dyeing properties of yarns and fabrics and the affinity of the fibres for dyes are modified by their treatment with the sulphuric and sulphonic acids.
Patent GB-254399-A (GB)
Title: Wireless lead-in and lightning conductor
IPC: H01Q1/50
Filed: 1925-04-04
Abstract: 254,399. Dixon, J. A. April 4, 1925. Connectors.-A lead-in connector combined with an earthing switch for a wireless aerial, comprises a conducting-rod 6 carrying a terminal 11 and a contact 8. The rod slides in an insulating tube 1 so that the contact 8 engages the aerial terminal 3 when the rod is held against a spring 10 by a stirrup 2 carrying an adjusting screw. When the rod is released the spring slides it into the earthing position, the aerial terminal being then isolated from the contact 8 and connected to the earth terminal 4 by a bridging contact 9. An inspection-cap 5 surrounds the switch.
Patent GB-556455-A (GB)
Title: Manufacture and application of acid amide derivatives
IPC: C07C233/00
Filed: 1941-07-16
Abstract: 556,455. Amide derivatives; proofing permeable materials ; foaming agents. SOC. OF CHEMICAL INDUSTRY IN BASLE. July 16, 1941, No. 8986. Convention date, July 20, 1940. Samples furnished. [Classes 2 (iii) and 15 (ii)] [Also in Group VIII] A diamide derived from an aromatic or cycloaliphatic diamine and a carboxylic acid in which the carboxylic group is united to a carbon atom is treated with an α:α<SP>1</SP>-dihalogendimethyl ether. The solubility of the resulting halogenmethyl derivative may be improved by treating with a tertiary amine to form a quaternary ammonium compound. A primary or secondary amine or thiourea may be reacted with the products and a cyanamide or dicyandiamide residue, which in salt form also improves the solubility may be introduced. The products, which have cation active properties may be used in the treatment of textiles and leather. In examples (1) α:α<SP>1</SP>- dichlordimethyl ether is reacted with distearyl m- or p-phenylenediamine and the product made soluble by treating with thiourea ; (2) distearylbenzidine is converted into its chlormethyl derivative and heated with excess of pyridine ; the resulting pyridinum chloride has foaming properties ; (3) acetyl stearyl-mphenylenediamine is treated first with α:α-<SP>1</SP> dichlordimethylether and then with thiourea ; (4) jacket-cloth is water-proofed by immersing in an alcoholic solution containing the product of example (1) and sodium acetate, drying and finally heating. The use of the following diamines and carboxylic acids is mentioned : 2:4-diaminotoluene, 1:4- and 1:5-naphthylenediamine, o-tolidine, diamisidine, m-diaminocyclohexane and diamines derived from diphenylmethane, diphenylether, diphenylsulphide, benzophenone and diphenylsulphone, acetic, propionic, valeric, caproic, undecylenic, oleic, linoleic, linolenic, chloracetic, salicylic, oxynaphthoic, phenylacetic, phthalic, hexahydrobenzoic, montan, naphthenic and resin acids. Samples have been furnished under Sect. 2 (5) of products obtained by condensing dichlordimethyl ether with dibenzoyl-m-phenylenediamine and also with the product obtained by acylating m-phenyleneidamine with nicotinic acid chloride and converting the resulting products into pyridiniumchlorides by treating with pyridine. The Specification as open to inspection under Sect. 91 comprises also the use of ureas and urethanes derived from aromatic and cycloaliphatic diamines. This subject-matter does not appear in the Specification as accepted.
Patent GB-800365-A (GB)
Title: Improvements relating to electrical switch gear
Inventor: HUNT JOSEPH JAMES HOLMES
IPC: H01H19/635
Filed: 1954-03-27
Abstract: 800,365. Snap-action switches. SIMPLEX ELECTRIC CO., Ltd. March 28, 1955 [March 27, 1954], No. 9007/54. Drawings to Specification. Class 38 (5). The subject-matter of this Specification is substantially the same as that described in Specification 767,112, but the claims differ. Specification 800,364 also is referred to.
Patent GB-794905-A (GB)
Title: Improvements in or relating to apparatus for measuring or controlling electrical values
IPC: G01R17/08
Filed: 1954-03-29
Abstract: 794,905. Current and voltage measurement. TINSLEY (INDUSTRIAL INSTRUMENTS), Ltd., and STEGHART, F. L. F. March 24, 1955 [March 29, 1954], No. 9155/54. Class 37. [Also in Group XXXVIII] A moving-coil or moving-iron meter movement adjusts a liquid resistor which correspondingly adjusts a current or voltage acting in opposition to the current or voltage controlling the movement. As shown, Fig. 1 (Provisional), a moving coil 2 and fixed and moving electrodes 11, 10 are housed in a vessel containing a damping fluid such as ethylene glycol mono-ethyl ether. The resistance between the electrodes provides the grid circuit for an A.C.-excited thyratron 13 the smoothed output of which operates indicating and recording instruments I, R and produces a voltage drop in resistor 7 in opposition to the deflecting voltage. In a modification, Fig. 2 (Provisional) (not shown), a hard valve replaces the thyratron and the meter movement controls the position of a potential divider electrode arranged between two fixed electrodes supplied with A.C. In a similar arrangement, Fig. 1 (Complete) (not shown), pentode amplifiers in cascade are used. In another alternative, a magnetic amplifier is used, Fig. 2 (Complete) (not shown). Fig. 3 shows an embodiment in which the liquid potential divider is excited by a transistor oscillator 121 and transistor amplifiers 118, 129, 130 and a bridge rectifier provide the operating current for the meter and the counter-voltage across resistor 113. In a further embodiment, Fig. 4, the meters and the resistor 164 across which the counter-voltage is developed receive in opposition a constant unidirectional current from winding 160 and rectifier 165 and a variable unidirectional current from winding 159, rectifier 162 and the adjustable liquid resistor 156, 157. This arrangement allows a centrezero instrument to be used with a reversible input voltage.
Patent GB-287862-A (GB)
Title: Improved manufacture of artificial silk
IPC: D01D7/02
Filed: 1928-03-26
Abstract: 287,862. I. G. Farbenindustrie Akt.- Ges. March 24, 1927, [Convention date]. Apparatus for making filaments; cellulose xanthates, processes for making filaments from. -For the manufacture by the centrifugal method of artificial silk threads of small total titre, say 120 deniers or less, there is used a reduced speed of spinning of about 25-35 metres per min., a reduced speed of revolution of the spinning box so as to give a thread of 120 or less turns per metre and a spinning box of an increased diameter such that orderly spinning is maintained. In the case of threads composed of filaments of 3 deniers or less, the speed of spinning and the rate of revolution of the box are further reduced and the diameter of the box is still further increased while its speed of rotation is decreased. In order to obviate the production of threads showing an excessive extensibility, it is advisable to subject the thread between the spinning nozzle and the spinning box, and preferably between the nozzle and the godet, to mechanical strain by passage over the thread guide, preferably resiliently mounted. It is convenient to use a spinning machine in which the speed of the box can be varied according to the diameter of the box. Specification 232,219 is referred to.
Patent GB-907608-A (GB)
Title: Production of artificial materials from viscose
IPC: D01F2/10
Filed: 1961-03-13
Abstract: In the manufacture of artificial materials from viscose, the viscose is shaped and its decomposition effected in the presence of an ortho-phosphoric acid ester of the formula <FORM:0907608/IV(a)/1> where the R groups may be the same or different and each is a -C2H4- or -C3H6- residue and the sum of the values (x+y+z) is 18 to 60. Suitable esters include polyethylene glycol esters, polypropylene glycol esters and polyethylene-polypropylene glycol esters.  The ester may be added to the viscose solution, suitably in an amount of 0,05-0,4% by weight of the viscose.  Preferably the addition amounts to 1,6-2,4% of the weight of cellulose present in the viscose. The ester may also be added to the decomposition bath, suitably in an amount of 0,005-0,04% by weight of the bath, which may contain sulphuric acid and zinc sulphate, and, if desired, iron, manganese, or nickel sulphates, which may partly replace the zinc sulphate. Such a bath may contain 10-25%, preferably 15-22%, anhydrous sodium sulphate, 3-15%, preferably 4-12%, anhydrous zinc sulphate and 6-10% by weight sulphuric acid.  Bath temperatures of 25 DEG -80 DEG C., especially 45 DEG -70 DEG C., are preferred, 55 DEG -65 DEG C. being used when making type cord.  The viscose may be extruded to form filaments, ribbons or films which may be stretched continuously with their production, e.g. in the decomposition bath or in a second, dilute acid, bath.  Filaments so spun have a high tenacity and a high skin/core ratio, and may consist entirely of skin.  Ribbons and films so spun exhibit smooth surfaces and enhanced transparency.
Patent GB-308319-A (GB)
Title: Improvements in or relating to thermionic rectifiers and holders for use therewith
IPC: H01J19/82
Filed: 1929-03-21
Abstract: 308,319. Siemens & Halske Akt.- Ges. March 21, 1928, [Convention date]. Vacuum tubes.-The ripplesmoothing elements of a rectifier, such as condensers 6, 6<1>, Fig. 1, are located in the envelope 1, or, as indicated at 8, in the cap 7 of the rectifier. Alternatively, the condensers 13, Fig. 2, may be housed in an intermediate holder 9 having sockets 12, adapted to receive the pins of the rectifier, and pins 10 for plugging into the sockets of a valve-holder. The condensers may be of the " rolled up " type. Specifications 298,296 and 300,124 are referred to.
Patent GB-561047-A (GB)
Title: Improvements in or relating to adsorbents and methods of making same
IPC: B01J20/20
Filed: 1942-07-04
Abstract: An adsorbent for use in sugar refining or other purification processes consists of a mixture, which is bonded by heating and carbonizing, of clay, a basic calcium phosphate and a carbonizable material, which may be pitch, starch, soya bean meal, dried blood, or other protein or carbohydrate material.  The basic phosphate is formed in presence of the clay by reaction of lime, hydrated lime, calcium carbonate or sulphate with phosphoric acid, mono- or di-calcium phosphate or "treble" or ordinary superphosphate. The reaction is carried out in presence of alkali, e.g. ammonia, to increase the buffering action of the product.  The mixture is washed with water, dried and fired at 650-950 DEG  C. preferably after granulation.