baber/WOPTO huggingface dataset:
Patent GB-1303159-A (GB)
IPC: C08L23/12
Filed: 1970-04-03
Abstract: 1303159 Producing polypropylene filaments BADISCHE ANILIN & SODA FABRIK AG 3 April 1970 [5 April 1969] 15892/70 Addition to 1303151 Heading B5B Polypropylene is extruded at a melt temperature of 180 to 360‹ C. to form filaments each having a cross-sectional area of from 0À05 to 0À000375 mm<SP>2</SP>, and the filaments are drawn at a draw ratio of from 3:1 to 15:1 preferably 4:1 to 11:1 at a temperature which is between 10‹ C. and the crystallite melting point of the polypropylene used to form filaments having a cross-sectional area of from 0À005 to 0À000125 mm.<SP>2</SP>. The latter is a blend of 70 to 80% by weight of a polypropylene of which less than 1% by weight is soluble in toluene boiling at standard pressure, the ratio by weight of polypropylene to toluene being 5:95, and 20 to 30% by weight of a polypropylene of which more than 99% by weight is soluble in toluene boiling at standard pressure, the ratio by weight of polypropylene to toluene being 5:95. The two polypropylenes have substantially the same intrinsic viscosity and substantially the same molecular weight distribution (determined by the method of gel permeation chromatography). The absolute values of the intrinsic viscosities [#] (measured in decahydronaphthalene at 130‹ C.) of the two polypropylenes are always within the range of from 1 to 10, and preferably within the range of from 1À2 to 3À8. In the example, a mixture of 75% by weight of an insoluble polypropylene having an intrinsic viscosity of 1À6 and 25% by weight of a soluble polypropylene having an intrinsic viscosity of 1À7 are homogenied with each other in an extruder at 220‹ C. to produce a mixture having a crystallite melting point of about 160‹ C. and the mixture is extruded at a melt temperature of 280‹ C. to form filaments each having a cross-sectional area of 0À0122 mm.<SP>2</SP> and the filaments are drawn at a draw ratio of 6:1 and a temperature of 150‹ C.; the crosssectional area of each filament is thereby reduced to 0À00187 mm.<SP>2</SP> (equivalent to 15 denier.)
Patent GB-908005-A (GB)
Title: Conversion of heat into electricity
IPC: H01J45/00
Filed: 1961-05-03
Abstract: 908,005. Thermionic converters. CSF COMPAGNIE GENERALE DE TELEGRAPHIE SANS FILS. May 3, 1961 [May 12, 1960], No. 15997/61. Class 39 (1). A device for the direct conversion of heat into electricity comprises an electron emitter 2, Fig. 2, which is heated and a collector 4 of metal which is liquid at its operating temperature. The emitter may be of tungsten, molybdenum, tantalum, columbium or rhenium, or may be a compressed and sintered mixture of molybdenum and thorium or barium and a refractory powder. It is heated to 900‹ to 1100‹ C. by sun rays, combustion, residual engine gases or in nuclear reactors. The collector may be of caesium, rubidium or potassium and is maintained at 100‹ or 300‹ C. to give a vapour pressure of 10<SP>-3</SP> or 1 Torr. The metal bases 1, 3 of the emitter and collector are sealed to a spacer 5 of insulating material or a resistive alloy. As shown, the tank 3 is provided with partitions 9 which project above the liquid level so that if the device is tilted slightly, the overall collector surface remains substantially parallel to the emitter. The collector liquid may be pumped round a closed circuit, Fig. 3 (not shown), and the tank 3 may have a sloping bottom surface so that solid impurities are removed therefrom and trapped in a further tank in the circuit. The device may comprise an additional electrode for contact ionization of the vapour.
Patent GB-784927-A (GB)
Title: Improvements in or relating to rulers
IPC: B43L7/12
Filed: 1956-05-24
Abstract: 784,927. Parallel rulers. NIGHTINGALE, R. May 24, 1956, No. 16062/56. Class 97(3) In a ruler comprising bars 10, 11 connected by pivoted links 15, projecting friction elements in the form of rings 21 of, for example, rubber are provided in annular grooves concentric with the link pivots.
Patent GB-825473-A (GB)
Title: Improvements in the production of benzylacetophenones
Inventor: BECKE FRIEDRICH
IPC: C07C49/84
Filed: 1958-05-20
Abstract: Benzylacetophenones of the general formula <FORM:0825473/IV (b)/1> wherein R and R1 represent hydrogen or halogen atoms, or alkyl or alkoxy groups with 1 to 12 carbon atoms, are prepared by reacting an acrylic acid halide with benzene or a benzene derivative of the general formula <FORM:0825473/IV (b)/2> in the presence of a catalyst of the Friedel-Crafts type.  For the production of benzyl-acetophenones having different substituents in the two aromatic nuclei, one aromatic component is reacted with a molar amount of the acrylic acid halide, for example at a temperature of 0-20 DEG  C., and then the other aromatic component is added in molar excess and the reaction continued at 40-80 DEG  C. Examples 1 and 2 describe the preparation of 1,3-bis-anisylpropanone-(1) by the action of acrylic acid chloride on anisole in the presence of aluminium chloride. Example 3 describes the preparation of 1,3-bis-xylyl-propanone-(1).  In Example 4, a solution of acrylic acid chloride, obtained by reacting acrylic acid with phosphorus pentachloride in benzene, is added at about 70 DEG  C. to a mixture of benzene and aluminium chloride.  After stirring for about 3 hours, the reaction mixture is poured on to ice.  The organic phase is then washed free from acid, and the unreacted benzene is distilled off. Further distillation yields benzylacetophenone. In Example 5, a mixture of acrylic acid chloride and anisole is slowly added, while stirring and cooling to 0-20 DEG  C., to aluminium chloride suspended in carbon disulphide, the reaction-mixture being irradiated with a mercury vapour lamp. After the evolution of hydrogen chloride has subsided, benzene is added, and the reaction-mixture is heated to 60-70 DEG  C. for 2-3 hours.  The product is poured on to ice, and washed free from acid.  After distilling off the carbon disulphide and excess benzene, 1-anisyl-3-phenyl-propanone-(1) is obtained by vacuum distillation.  Examples 6 to 10 relate to the preparation of the following compounds: bis-(chlorphenyl)-propanone, bis-(meta-dichlorphenyl)-propanone, bis - (meta - chlortoluyl) - propanone, bis-ethoxyphenyl-propanone, and bis-(isopropylphenyl)-propanone.
Patent GB-560168-A (GB)
Title: Improvements in or relating to the treatment of fabrics
IPC: D06M15/227
Filed: 1940-11-08
Abstract: A dope for stretched fabrics comprises a solution in an organic solvent of chlorinated polythene made by chlorinating solid polythene at a temperature below 60 DEG  C. to a chlorine content of 60-70 per cent.  Substances which inhibit the formation of free hydrogen chloride on exposure to light or heat such as those described in Specification 538,871; pigments; dyes; substances which inhibit decomposition by heat such as those described in Specification 545,500 or phenyl glycide ether or b  naphthyl glycide ether; plasticizers, e.g. tricresyl phosphate or dibutyl phthalate; film-forming materials, e.g. chlorinated rubber, polyvinyl derivatives and polymethyl methacrylate may be added. Suitable solvents include benzene, toluene, xylene, chlorinated hydrocarbons, ethyl and amyl acetates and methyl ethyl ketone to which diluents, such as acetone, petroleum hydrocarbons and solvent naphtha may be added.  Mixtures of chlorinated polythenes such as those described in Specification 519,422, having a mean chlorine content of 60-70 per cent may be used.  In an example, the dope is prepared by milling the chlorinated polythene with ferric oxide, phenyl salicylate lead tartrate, benzene, toluene, and acetone.  Specifications 471,590 and 481,515 also are referred to.
Patent GB-254341-A (GB)
Title: Improvements in and relating to variable speed power transmission mechanism of the friction type
IPC: F16H61/662
Filed: 1926-06-28
Abstract: 254,341. Hayes, F. A. June 29, 1925, [Convention date]. Disc.-The Specification as open to inspection under Sect. 91 (3) (a) comprises a disc brake shown in Fig. 7 (Cancelled), which allows the engine 105 of a vehicle, to run freely while braking a shaft 10 driving the road wheels. As long as the load shaft 10 resists the engine, shaft 115, oppositely threaded discs 113, 114 pierced by pins 116 on a spider 117 carried by a shaft 10 are closed together and clear a fixed annular braking member 107. As soon as the vehicle, tends to overrun and drive the shaft 115, the discs 113, 114 separate into engagement with the member 170, thereby braking the load shaft, while permitting the engine to run. The member 107 is cooled by radiating fins 110 and by air vanes 111 on the engine fly-wheel 112. This subject-matter does not appear in the Specification as accepted.
Patent GB-124707-A (GB)
Title: Improvements in Hook and Eye Fastenings.
Inventor: WILLIAM FREDERICK FLOESSELL
IPC: A44B13/00
Filed: 1918-10-07
Abstract: 124,707. Floessell, W. F. March 26. 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Hooks and cyes.-In a hook-and-eye fasten. ing, the hook member has a contracted entrance 12, and the eye member is greater in section than said entrance when the two members are approximately in the same plane, but less in section when they are approximately at right-angles to one another, as shown in Fig. 3. The hook and eye members may be formed from wire, as shown in Fig. 1, or from strip metal, as shown in Fig. 4.
Patent GB-991244-A (GB)
Title: Reflector assembly for heating element for electric cooking range
IPC: F24C15/22
Filed: 1964-04-20
Abstract: 991,244. Disposable reflector for cooking ranges. WESTINGHOUSE ELECTRIC CORPORATION. April 20, 1964 [April 26, 1963], No. 16318/64. Drawings to Specification. Heading F4W. A disposable reflector assembly for a cooking range heating element comprises a plurality of nested reflector elements each formed of thin sheet metal, the lowermost having a greater thickness than the other. The reflector elements may have a surface coating to minimize adhesion between the sheets. The reflector elements may be made of aluminium with a coating of anodized aluminium.
Patent GB-1009906-A (GB)
Title: Redox polymers
IPC: C08F4/00
Filed: 1963-04-25
Abstract: Redox polymers which comprise a cross-linked copolymer of a monoethylenically unsaturated monomer and a polyethylenically unsaturated monomer which contain (a) quinonoid or hydroquinonoid groups, and (b) amine, carboxylic acid or salt groups may be prepared by reacting the copolymer containing quinonoid or hydroquinonoid groups and halomethyl groups with an amine, thioglycollic acid or glycollic acid (see Specification 1,009,905). The copolymer may be derived from styrene, vinyl toluene, a -methyl styrene or vinyl naphthalene and divinylbenzene, or of styrene and trivinylbenzene, vinyltoluene and ethylene glycol dimethacrylate, and may have a macroreticular structure.  The copolymer may be chloromethylated and then reacted in such a way that only some of the chloromethyl groups react in the presence of a Friedel-Crafts reagent, with a quinone or hydroquinone, each having at least one hydrogen atom on a ring carbon available for substitution, or a diether or diester of such hydroquinone.
Patent GB-1176179-A (GB)
Title: Process for the Production of 3-amino-Pyrizadines
Inventor: BECKER HEINZ
IPC: C07D237/20
Filed: 1967-04-10
Abstract: 1,176,179. 3 - Amino - pyridazines and process therefor. LEUNA-WERKE WALTER ULBRICHT VEB. 10 April, 1967, No. 16338/67. Heading C2C. A process for the production of biologically active 3-amino-pyridazines (I) wherein R 4  is a hydrogen atom or an alkyl, aryl, hydroxy, alkoxy, aralkoxy, amino or -OCH 2 .CO 2 H group, R 5  is a hydrogen atom or an alkyl or aralkyl group and R 6  is an alkyl, aryl or aralkyl group, or R 5  and R 6  together comprise an alkylene chain, comprises hydrogenating a compound (II) dissolved in an organic solvent in the presence of a nickel catalyst at a temperature between 140‹ and 220‹ C. and a pressure between 20 and 250 atmospheres. The catalyst is preferably Raney nickel or an aluminium oxide catalyst carrier containing metallic nickel in the proportion of between 20 and 80% by weight; 3 - amino - pyridazines (I) wherein R 4  signifies hydroxy are novel compounds.
Patent GB-694044-A (GB)
Title: Resilient mounting for motor cycle engine
Inventor: SEDDON ROBERT MAXWELL
IPC: B62M7/00
Filed: 1950-06-30
Abstract: 694,044. Resilient mountings. DUNLOP RUBBER CO., Ltd. June 19, 1951 [June 30, 1950], No. 16343/50. Class 108 (iii). [Also in Group XXXI] Means for resiliently mounting an engine on the frame of a motor cycle comprises a resilient rear attachment, a resilient lower attachment 14 and a front attachment 15, the rear attachment comprising a bracket 11 rigidly secured, e.g. by welding to the frame at the rear of the engine, and connected to the engine by a pin or like element 11g which is resiliently mounted in a rubber bush 11o, the lower attachment comprising rigid members 14ca, 14c secured to the frame and engine respectively and connected by resilient material 14h stressed in shear and the front attachment comprising rigid members 15a, 15d in frictional engagement and which are attached to the engine and frame respectively and are capable of relative displacement only in the plane containing the frame. The rear attachment, Fig. 2, has two rubber bushes 11o, each of which has one flanged end and the other end of which butts against a rubber ring 11p. The bushes and rings are stressed during assembly by means of washers 11h, 11n which transmit the pressure of a nut 11k ; the nut butts against a shoulder on the pin 11g so that a predetermined pressure is applied to the rubber bushes. The resilient members 14h of the lower attachment, Fig. 3, are bonded to studs 14s by which they are trapped between the two rigid members 14a, 14c; a rubber stud 14g on the member 14c prevents excessive movement of the member 14a. The front attachment, Fig. 4, confines the movement of the engine to one plane and reduces its amplitude at low speeds. The rigid members 15a each have a friction part 15c which engages on slides in the member 15d. The degree of friction is adjustable by means of a bolt 15f which connects the two members 15a. The engine exhaust pipe is connected to the frame near its tail by a resilient connection comprising a rubber block with oppositely directed threaded studs bonded to it which is connected between brackets on the frame and exhaust pipe.
Patent GB-1245368-A (GB)
Title: Monolithic electric circuit
Inventor: FRANTZ HERMANN
IPC: H03K3/288
Filed: 1969-03-28
Abstract: 1,245,368. Semiconductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 28 March, 1969 [30 April, 1968], No. 16392/69. Heading H1K. [Also in Division H3] In a monolithic integrated circuit two transistors are formed in a common epitaxial region, which forms a part of each transistor, by means of separate diffused regions, the transistors being connected in a circuit so that in operation the common region functions as the emitter of at least one of the transistors. The transistors are formed simultaneously by diffusing P-type base regions into an N-type epitaxial layer on a P+-type substrate, the epitaxial layer being divided into islands by a P-type isolation diffusion. N-type regions are diffused into the base regions and form the emitters of normally poled transistors and the collectors of inversely poled transistors. The inversely poled transistors exhibit a low gain which may be less than unity if the circuit is gold doped. A memory cell, Fig. 3, comprises five transistors T1 to T5 and two resistors R1 and R2, two of the transistors T3, T4, forming a bi-stable multivibrator, being arranged in a single island and operated so that the common region functions as their emitters, and the other three transistors T1, T2, T5, forming addressing, reading and writing components, being arranged in a second island and operated so that the common region forms the emitters of two of the transistors T1, T2 and the collector of the third transistor T5.
Patent GB-416525-A (GB)
Title: Improvements in or relating to combination grates
IPC: F24B1/18
Filed: 1933-06-08
Abstract: 416,525. Converting open into close fireplaces. TRIPLEX FOUNDRY, Ltd., and HORRELL, C. R., Great Bridge, Staffordshire. June 8, 1933, No. 16414. [Class 126.] A closure member which may also function as a hopper, for use with the open fire grate of a " combination" range fits detachably against the front of the grate opening so as to close in the fire space completely while allowing, when desired, an opening between the upper end of the fire space and the chimney. The body part a of the closure member is a dished cast iron plate with rearwardly projecting side flanges b and laterally projecting flanges c, and has at the top a rearward extension g which fits into the space above the fire. An aperture h is formed in this extension g for the passage of combustion products and the introduction of fuel. Damper plates j lie on the extension g. A baffle plate e, formed in one with, or attached to, the lower part of the body part a, directs the introduced fuel rearwardly towards the boiler. Lugs d engage in lugs or brackets on the grate front.
Patent GB-299077-A (GB)
Title: Improvements in safety lamps for coal mines, garages or the like
IPC: F21L23/00
Filed: 1927-06-21
Abstract: 299,077. Hailwood, E. A. June 21, 1927. Miners' safety lamps.-A combustion platform C<1> carrying glasses A is separable from the oil vessel V and from a flat upper chimney F with an outlet protected by double gauze 0, the whole being enclosed in an outer case B having air inlet holes B<5> and outlet holes B<6>, B<8>. The combustion platform openings G<2> are protected by inner and outer gauzes G, G<1>, and the outer gauze may cover two boxes as shown, in Fig. 3. Flanges N on the platforms C<1> make flametight joints with upstanding parts W<1> of the oil vessel which has wick tubes W covered by domes D. Pillars C<2> connect the platform C<1> with a middle platform M having screwed rings M<1> for holding the glasses down on the platform C<1> and over a flange on the platform M takes a flange F<1> of the elongated flat chimney F, or the flanges of separate flat chimneys. The upper end of the chimney is splayed outwards to hold a removable gauze tube 0 or a metal tube having gauzeprotected openings. A flanged end plate 0<1>, Fig. 2, retains the gauze tubes in place. When the parts are assembled they are passed through a side opening in the outer case B which comprises an upper and lower part connected by pillars B<2>, and may have the central part glazed. The case is locked by a magnetic ratchet lock contained in a housing R<2> the ratchet being keyed to a screw R<1> taking in a bush R on the oil vessel and released bv a magnet inserted in the port R<5>. A handle H, Fig. 9, is attached by wings H<1> to the upper part B<4> of the case and comprises a perforated tube with a hook H<3>. A metal shield may be placed between adjacent glasses to obscure one burner from view while the other is being used for gas testing. The burner domes D may be adjustable as to height. Fig. 6 shows a modification of the double gauze protected flat chimney in which two separate chimneys F each carry a closed gauze 0<2> surrounded by a metal part F<2>, and enclosed in an outer closed gauze 0<3>. The tubular upper gauze O shown in Fig. 1 may be in two parts screwed together for ease in cleaning. The chimney F, Fig. 1, may have, a central dividing plate, and the apertures B<5>, B<6>, B<8> may be guarded by exterior plates. The glass used may be such as to permit ultraviolet rays to pass.
Patent GB-273622-A (GB)
Title: Improvements relating to the production of oxygen-containing aliphatic compounds
IPC: C07C45/87
Filed: 1925-06-26
Abstract: 273,622. Dreyfus, H. June 26, 1925. Keten; acetic acid; acetic anhydride.-Keten is obtained by subjecting acetaldehyde vapour to a relatively high temperature. Preferably, the reaction is performed in the presence of a dehydrogenating catalyst, such as nickel, copper, or zinc, at 150-300‹ C. and at atmospheric pressure, but. the temperature may attain 500‹ C. and pressures of 5-50 atmospheres may be applied, particularly when the catalyst is omitted. The keten may be collected in the gaseous state and used in acetylation processes, particularly in the manufacture of cellulose acetate, or it may be used to form acetic acid and/or acetic anhydride. In the latter event the keten, preferably after condensation of unconverted acetaldehyde. is absorbed in or otherwise treated with water and/or acetic acid in liquid or vapour form. This treatment of the keten may be effected at the moment of its formation by mixing water vapour and/or acetic acid vapour with acetaldehyde vapour and subjecting the mixture to the ketenforming reaction. The acetaldehyde employed may be that obtained from dilute acetic acid bv the method of Specification 273,810, and the hydrogen necessary for that method may be that evolved in the keten-forming reaction.
Patent GB-579073-A (GB)
Title: Improvements in or relating to attenuators for electric waves of very short length
IPC: H01P1/22
Filed: 1942-11-21
Abstract: 579,073. Coaxial line and wave guide attenuators. COLLARD, J. Nov. 21, 1942, No. 16507.. [Classes 40 (iii) and 40 (v)] An attenuator for high frequencies is in the form of a transmission line or wave guide including a high-resistance portion. For example, a wave guide may include a portion coated with resistance material. The device described in detail is a coaxial transmission line with a portion 11c of the inner conductor formed of resistance material tapped at 10 decibel intervals by metal rings which co-operate with spring fingers formed on a sleeve 16 which is preferably. #/2 in length and makes connection at its other end with a normal portion 11a of the inner conductor. The sleeve is carried by means of polystyrene insulation by a portion 12c of outer conductor which telescopes in a portion 12a. The portion 12c is carried by a block which is moved by a rack and pinion and has an extension surrounding the outer conductor 12b. Impedance-matching branch lines adjustable by pistons P1, P2 may be associated with the attenuator. These may be replaced by small screws threaded in the outer conductor and having capacity to the inner conductor of the attenuating line. The Specification indicates how the dimensions of the device are to be calculated.