baber/WOPTO huggingface dataset:
Patent GB-808487-A (GB)
Title: Process for the production of thermoplastic polycarbonates
Filed: 1956-03-26
Abstract: New copolycarbonates contain the residues of (1) a dihydroxy compound containing two hydroxy groups both directly attached to an aromatic nucleus other than a di-(monohydroxyaryl)-alkane, cycloalkane or sulphone (hereinafter referred to as an aromatic dihydroxy compound) and (2) a dihydroxy compound containing two hydroxy groups at least one of which is directly attached to an aliphatic or cycloaliphatic carbon atom (hereinafter referred to as an aliphatic dihydroxy compound).  They may be made (a) by reacting a mixture of an aliphatic and aromatic dihydroxy compound with a dialkyl or diaryl carbonate; (b) by introducing phosgene into a solution or suspension of a mixture of the dihydroxy compounds in an organic base and if desired in presence of an inert solvent; (c) by introducing phosgene or phosgene solution into an aqueous alkali solution or suspension of a mixture of the dihydroxy compounds, if desired in presence of an organic solvent; (d) by reacting a bis-chloro-carbonic acid ester of an aromatic dihydroxy compound with an aliphatic dihydroxy compound if desired in presence of an acid binding agent or an inert solvent; or (e) by interesterifying an aliphatic dihydroxy compound with an arylene-bis-alkyl or aryl-carbonate.  Aromatic dihydroxy compounds specified include dihydroxy-benzenes, diphenyl, naphthalenes and dinaphthyls.  Aliphatic dihydroxy compounds specified include polymethylene glycols and hydrocarbon substituted derivatives, oxyalkylene glycols, thioalkylene glycols, xylylene glycols, cyclohexanediols, dihydroxydicyclohexylalkanes, dihydroxydecahydronaphthalene and hydroxybenzyl alcohols.  The copolycarbonates are soluble in organic solvents, e.g. methylene chloride, chloroform, ethylene dichloride, benzene, toluene, xylene, acetone, cyclohexanone, butyl acetate, pyridine, dimethyl formamide, tetrahydrofurane and dioxane, may be worked up with plasticizers (e.g. tricresyl phosphate) or fillers (e.g. asbestos or glass fibres) and are suitable for the production of films, fibres, lacquers or moulded bodies.  Examples disclose copolycarbonates of (1) 3-cyclohexyl - 4.41 - dihydroxydiphenyl, 4.41 - dihydroxydiphenyl and hexane diol-1:6.  (2) 3-Cyclohexyl - 4.41 - dihydroxydiphenyl, hydroquinone and cyclohexanediol-1:4.  (3), (4) and (5) Hydroquinone and 2.2 - (4.4 - dihydroxydicyclohexyl)-propane, hexanediol-1:6 or ethylene glycol.  (6) Resorcinol, 4.41-dihydroxydiphenyl and hexanediol-1:6.  The invention of Specification 800,815 is disclaimed.  Specifications 772,627, 808,485, 808,486, 808,488 and 808,489 are referred to.
Patent GB-483417-A (GB)
Title: Process for conversion of aliphatic hydrocarbons
IPC: C07C5/41
Filed: 1937-04-02
Abstract: Aliphatic hydrocarbons are converted into cyclic, particularly aromatic hydrocarbons by contacting them for periods of 6-50 seconds at temperatures of 400-700 DEG  C. with a granular catalyst comprising a major proportion of a refractory carrier of low catalytic activity supporting a minor proportion of a more active catalyst selected from compounds, particularly oxides of titanium, zirconium, cerium, hafnium, and thorium.  The reaction may be effected at pressures of 0,25-7 atmospheres.  The preferred carriers are oxides and silicates such as alumina, magnesia, bauxite, Montmorillonite clays, bentonite clays, kieselguhr, silica, firebrick, and glauconite.  The proportion of active catalyst to carrier may be less than 10 per cent.  The catalyst may be in the form of shaped pellets or granules of 1,6-8 mesh per cm.  The reaction is effected in the absence of water vapour. The treatment of paraffins and mono-olefines having 6-12 carbon atoms is described. Specification 483,184 is referred to.ALSO:Aliphatic hydrocarbons are converted into cyclic, particularly aromatic hydrocarbons by contacting them for periods of 6-50 seconds at temperatures of 400-700 DEG  C. with a granular catalyst comprising a major proportion of a refractory carrier of low catalytic activity supporting a minor proportion of a more active catalyst selected from compounds, particularly oxides, of titanium, zirconium, cerium, hafnium, and thorium.  The reaction may be effected at pressures of 0,25-7 atmospheres.  The preferred carriers are oxides and silicates such as alumina, magnesia, bauxite, Montmorillonite clays, bentonite clays, kieselguhr, silica, firebrick, and glauconite.  The proportion of active catalyst to carrier may be less than 10 per cent.  The catalyst may be in the form of shaped pellets or granules of 1,6-8 mesh per cm.  The reaction is effected in the absence of water vapour.  The treatment of paraffins and mono-olefins having 6-12 carbon atoms is described.  Specification 483,184 is referred to.
Patent GB-720012-A (GB)
Title: Improvements in or relating to the cooling of aircraft propulsion plants
Inventor: PITTS GEORGE FREDERICK
IPC: B64D37/02
Filed: 1951-04-23
Abstract: 720,012. Gas turbine plant. BRISTOL AEROPLANE CO., Ltd. April 23, 1952 [April 23, 1951], No. 9442/51. Class 110 (3). [Also in Group XXXIV] A gas turbine plant burning liquid fuel has means for circulating liquid fuel in a circuit in heat exchange relation with parts requiring heating and cooling respectively and means for replenishing the fuel in the circuit with fresh fuel from the fuel storage means to make up for normal losses of fuel from the circuit and to prevent the return of fuel to the storage means. Fuel from a tank 5 is supplied by a booster pump 6 to the main engine fuel pump 9 through a filter 7. Fuel is bled from the conduit between the filter 7 and pump 9 and passed through a non-return valve 10, a heat exchanger 13 and a chamber 11 for separating the air and vapour from the fuel to a further pump 17. The fuel is heated in the heat exchanger 13 by the hot lubricating oil from the engine. The valve 10 closes in the flow direction if the flow exceeds a predetermined amount. The flow of hot fuel from the pump 17 is divided into three paths 19, 20 and 21. One path 19 passes through the heating jacket of the filter before joining the inlet of the heat exchanger 13 at 23. The other two paths 20, 21 pass to two annular distributing chambers 24, 25 disposed around the air intake to the compressor 27. From the chamber 25, the fuel flows through the guide blades 28 to another annular chamber 29 and from thence into the jacket space 30 of a doublewalled intake bullet fairing 31. The fuel flows from the chamber 24 through spaces 32 of the leading edge fairings 33 of the intake spider to the space 30. The combined flow from the space 30 passes through the space 35 of a hollow intake spider arm and the conduit 36 to the point 23. To control the rate of heat transfer throttle valves 37, 38 are provided, these valves may be controlled by manual, thermostatic or ice-detecting means. When thermostatic control is provided, the thermostat may be placed in the heating or cooling part of the engine, depending on which is the more critical. Additional heat exchangers 39, 40 may be employed. These heat exchangers may use hot gas as a heating medium or may bring the fuel into contact with the hot external or internal parts of the engine. In this case, the heat exchanger 13 may be omitted. There is a possibility of the fuel being overheated where additional heat exchangers are used. In this case, some of the hot fuel may be returned to the fuel system through a conduit 41, a throttle valve 42 and a venturi 43 and the valve 10 over-ridden so that it may pass more fuel. The matrix of the heat exchanger 13, the pump 17 and driving motor 18 may be assembled to form a unit which may be mounted on the wall of the lubricating oil storage tank above the oil level. The motor 18 may be a turbine driven by air bled from the compressor. The invention may be applied to a plant with several engines.
Patent GB-602878-A (GB)
Title: Improvements in or relating to azo dyestuffs
IPC: C09B31/065
Filed: 1945-04-17
Abstract: 3-Nitro-4-N-dimethyl-p-phenylenediamine is obtainable by nitrating 4-dimethylamino-1-acetanilide with sodium nitrite solution in acetic acid, and hydrolysing the product by heating with dilute hydrochloric acid.  Specification 245,758, [Class 2 (iii)], is referred to.ALSO:Artificial fibres of cellulose esters (e.g. acetate) or ethers or of polyvinylic or superpolyamide material are dyed in green shades by the application, diazotization on the fibre and development with 2 : 3-hydroxynaphthoic acid, of azo dyestuffs of the general formula <FORM:0602878/IV (c)/1> (wherein X represents the residue of an aromatic amine carrying no sulphonic or carboxylic acid group and only one free amino group, and "alk" represents an alkylene residue), which dyestuffs are made by coupling a diazotized aromatic amine, free from sulphonic and carboxylic groups but optionally further substituted by halogen atoms or alkyl, alkoxy, hydroxyalkoxy, nitro, nitrile, sulphonamide, non-diazotizable amino or sulphone groups, with a 2-hydroxyalkoxy-1-naphthylamine.  Examples describe the preparation and use of the dyestuffs from 1-amino-2-hydroxyethoxynaphthalene and diazotized aniline, m-and p-nitraniline, 6-bromo-2 : 4-dinitraniline, 3-nitro-4-N-dimethyl-p-phenylenediamine, and p-cresidine. Specification 245,758, [Class 15 (ii)], is referred to.  Samples have been furnished under Sect. 2 (5) of the dyestuffs a -naphthylamine --> 2-hydroxyethoxy-1-naphthylamine and m-nitraniline --> 2-b  : g -dihydroxypropyloxy-1-naphthylamine, and of cellulose acetate rayon yarn dyed therewith by the process of the invention.  The Specification as open to inspection under Sect. 91 comprises also the use of diazo components containing an acylamino group, which may be hydrolysed after coupling; the reduction, after coupling, of a nitro group present in the diazo component; the use, in the development of the dyeings on the fibre, of other coupling components, e.g. phenols, polyphenols, pyrazolones, naphthols or aromatic amines (yielding violet, blue, black, greenish black, olive and brown shades); and additional examples of the production of the dyestuffs 3-or 5-chloro-4-aminoacetanilide or 2-chloro-4-nitraniline --> 1-amino-2-hydroxyethoxynaphthalene (hydrolysed or reduced), and nitro-p-phenylenediamine --> 1-amino-2-hydroxyethoxynaphthalene. This subject-matter does not appear in the Specification as accepted.
Patent GB-713996-A (GB)
Title: Improvements in transitor devices
IPC: H01L23/31
Filed: 1952-04-16
Abstract: 713,996. Transistors. RADIO CORPORATION OF AMERICA. April 16, 1952, [April 28, 1951.] No. 9599/52. Class 37. A casing of moisture-proof thermosetting resin such as is known under the Registered Trade Mark "Araldite" is moulded or formed around a transistor and maintains the crystal and associated electrodes in their adjusted positions. The Specification with the aid of graphs Figs. 6 to 10 (not shown) discusses the improved performance and stability characteristics accruing from the invention. Transistor construction and assembly details. The ohmic contact electrode for the crystal I5 Fig. 3 consists of a metal sheet I7 having an upper portion bent back upon itself to form a horizontal shelf 2 1 Fig. 2 to which the crystal I5 is soldered. The subtending portion I8 of sheet I7 has a groove 20 within which the electrode support wire I2 is secured e.g. by spot welding. The emitter and collector point contact electrodes 23, 24 each an inverted V of steel, tungsten or phosphor bronze wire are soldered to corresponding support wires I3, I4. In producing the assembly the crystal I5 and supporting electrode I7 are advanced towards the point contact electrodes 23, 24, with wire I2 in register with groove 20, until the desired contact pressure is obtained whereupon wire I2 is spot welded into the groove 20. The crystal I5 may consist of silicon but is preferably germanium. The transistor is designed for plugging into a subminiature valve socket. Production of casing. In a first embodiment Figs. 3 to 5 the support wire 14 is bent to form a cross-piece 30 which is soldered to support wire 13 Fig. 3 and the transistor is then enclosed in a temporary housing 31 which latter consists of a cylinder of gelatin bent into the desired oval shape by metallic collar 32. Liquid "Araldite" is then poured into the housing 3I closed at one end by stem 10. The moulding or curing process follows after which the gelatin is dissolved away and the top portion of the moulding ground off to remove the wire cross-piece 30. Figs. and 5 show the transistor embedded in the oval shaped moulding. A second embodiment Figs. I and 2 utilizes a permanent metallic housing 25 and the liquid resin is poured in through opening 26 and subsequently cured to produce casting 27 filling the housing 25. Curing temperatures and hardener details etc. are referred to and the transistor is preferably preheated before the liquid resin is poured.
Patent GB-451059-A (GB)
Title: Improvements in reservoir marking instruments
IPC: B43K8/02
Filed: 1935-05-28
Abstract: 451,059. Reservoir brushes. LUNZER MANUFACTURING CO., Ltd., 104, High Holborn, and LUNZER, S., 98, Wilberforce Road, Finsbury Park, both in London. May 28, 1935, No. 9660. [Class 19] [See also Group XV] A marking-instrument is provided with a felt or like absorbent marking-tip d carried by a nozzle c adapted to screw on to a section b mounted in the barrel and having attached to its inner end a collapsable sac e, slight squeezing of which, by means of a presser-bar f and lever g, causes ink to be ejected through the passage b<4> in the section b on to the tip d.
Patent GB-412364-A (GB)
Title: Improvements relating to the escapement mechanism of typewriting machines
IPC: B41J19/66
Filed: 1933-03-31
Abstract: 412,364. Typewriters. JARDINE, Ltd., J., Deering Street, Nottingham, and BALL, H. J., Knowle Park House, Kimberley, both in Nottinghamshire. March 31, 1933, No. 9680. [Class 100 (iv).] Letter-spacing mechanism.-The escapementwheel clutch is automatically disconnected during carriage-return, to permit of noiseless return, by means of a lever in frictional engagement with the feed-rack. In the arrangement shown in the Figure, an L-shaped lever D<1>, pivoted at D<8> to the framework, is forked to engage the clutch-member A, and is provided with a spring J which frictionally engages the feed-rack H. During return of the carriage, the lever is displaced, and the clutch-member A is separated from the clutch-member B on the escapement wheel F.
Patent GB-1504150-A (GB)
Title: Voussoir assembly
IPC: E21D11/15
Filed: 1975-03-07
Abstract: 1504150 Tunnel linings PONT-A-MOUSSON SA 7 March 1975 [22 March 1974] 9725/75 Heading E1F In tunnel linings comprising sections each having a part cylindrical web and depending walls and designed to be arranged with the walls of adjacent sections in juxtaposition, the juxtaposed walls define a cavity between them for connecting material and have overlying portions generally parallel to the webs between the outer surface of the webs and the cavity. In the embodiment shown in Fig. 2 adjacent lining sections 1 and 2 have webs 3 and depending walls 4, 5 of different curvature to define cavities 8, 9 for a connecting material e.g. adhesive to be injected from direction L. Wall 5 has a projecting portion that overlies a shoulder 11 on wall 4 to prevent the passage of any filling material inserted into the space between the tunnel wall and the lining webs. In the embodiment shown in Fig. 4 a rectangular section cavity 8a is formed between walls 6a, b.
Patent GB-514676-A (GB)
Title: Improvements in multi-anode gas-filled electric discharge tubes
IPC: H01J1/00
Filed: 1938-03-30
Abstract: 514,676. Discharge apparatus. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE-PAZ & SILVA. March 30, 1938, No. 9738. Convention date, Feb. 2. [Class 39 (i)] In a gas-filled discharge tube with a cathode at one end and at least two anodes mounted close together on a single stem at the other end, the parts of the anodes nearer to the cathode and facing the envelope extend close up to the wall of the tube so that only the anode surfaces facing the cathode are affected by the discharge. In the form shown concentric anodes 12, 13 are employed separately by a small space of width d, the outer anode 12 having a flange which extends close to the wall 22. A tube 18 of refractory material prevents discharge between the lead-in wires 15, 19. In a modification, two slightly separated semi-cylindrical anodes are employed. A mercury vapour tube may have argon as an auxiliary filling gas, the pressures mentioned being .4 mm. and .8 mm. mercury. Dimensions and anode spacings are given for a tube giving a rectified current of 2.5 to 3 amperes at the cathode.
Patent GB-1135268-A (GB)
Title: Improvements in or relating to bistable devices
IPC: H03K3/037
Filed: 1966-03-07
Abstract: 1,135,268. Bi-stable logic circuits. INTERNATIONAL BUSINESS MACHINES CORP. 7 March, 1966 [5 April, 1965], No. 9819/66. Heading H3T. A bi-stable circuit comprises a pair of reciprocably coupled SET and RESET circuits, switched by the simultaneous application of clock and data setting signals which gate a data input signal applied selectively either to air input of the SET circuit or to an input of the RESET circuit. Each circuit may comprise a transistor inverting OR 4, 8, controlled by AND circuits 1 ... 7. The selective application of data input signals BIT A (or BIT B) is arranged by feeding such signals directly to the SET circuit and via an inverter 9 (or 10) to the RESET circuit.
Patent GB-570389-A (GB)
Title: Improvements in or relating to the control surfaces of aircraft
IPC: B64C21/08
Filed: 1943-06-01
Abstract: 570,389. Linkwork. FAIREY AVIATION CO., Ltd., and REEVE, L. W. June 1, 1943, No. 9829/45. Divided out of 569,665, [Group XXXIII]. [Class 80 (iii)] [Also in Group XXXIII] In an aircraft control surface a lift flap band interceptor flap o are mounted on tension links 26, 36 respectively, and are interconnected by links 29, 39, bell cranks 31, 32, and 41, 42 and a hydraulic link 46. The lift flap b is operated by a hydraulic jack 34 connected to the bell crank 31, 32. The link 46 comprises a cylinder 47, piston 48 and piston rod 49, the ends of the cylinder being in communication through a pipe 50. A spring loaded valve 51, formed with a passage 52 is provided in the pipe 50, and is controlled from the cockpit by a cable 54. When the passage 52 is in register with the pipe 50, fluid may pass freely from one end of the cylinder 47 to the other and the link 46 is ineffective for the transmission of motion between the lift and interceptor flaps, closure of the pipe connection 50 by raising the valve 51 preventing fluid flow and thus rendering the link 46 effective. A light spring 44 connected to the bell crank 41, 42, normally maintains the interceptor flap in its inoperative position.
Patent GB-160183-A (GB)
Title: Improvements in or relating to date indicators
Filed: 1918-06-14
Abstract: 160,183. Lely, G. P. June 14, 1918. Calendars and date indicators.-A date indicator of rectangular or tablet form comprises a board 1 on which are inscribed scales 3, 4 representing the days of the month and the days of the week respectively, and two pointers 9, 10 which are relatively adjustable and arranged one adjacent to each scale and adapted to be operated manually so as to move along the scales simultaneously. As shown in Fig. 1, the pointers are mounted on a flexible member such as a thong 8 which passes through apertures in the board 1 and is pulled daily to set the pointers, the pointer 10 being adjusted on the first day of the month to the particular day of the week upon which that date falls. In a modified construction, the pointers 9, 10 are mounted on a screwed spindle adapted to be rotated to effect the simultaneous movement of the said pointers. Various forms of pointers are described and if desired sets of pointers bearing a fixed relation to each other, as shown in Figs. 6, 8, and 10, may be employed. In further modifications, the adjutable pointers are normally stationary and the numerical and diurnal scales are adapted to move simultaneously; these may be mounted on the same member or on separate members connected together. The month indications are set by means of a roller 28.
Patent HK-121994-A (HK)
Title: Pyridine derivatives
Inventor: CLIFFE IAN ANTHONY
IPC: C07D401/14
Filed: 1994-11-03
Abstract: Pyridine derivatives of formula <CHEM> their heteroaromatic N-oxides and their pharmaceutically acceptable acid addition salts are disclosed. In the formula z is 0,1 and 2 and R,R<1>,R<2> and R<2> have specified meanings. The compounds exhibit activity as 5-HT1A agonists, antagonists or partial agonists and are useful for the treatment of CNS disorders eg anxiety, as antihypertensives and in treating anorexia.
Patent HK-219496-A (HK)
Title: Pyrazolopyrimidinone antianginal agents
Inventor: BELL ANDREW SIMON
IPC: C07D231/02
Filed: 1996-12-24
Abstract: Compounds of the formula: <CHEM> wherein R<1> is H, C1-C3 alkyl, C3-C5 cycloalkyl or C1-C3 perfluoroalkyl; R<2> is H, C1-C6 alkyl optionally substituted by OH, C1-C3 alkoxy or C3-C6 cycloalkyl, or C1-C3 perfluoroalkyl; R<3> is C1-C6 alkyl, C3-C6 alkenyl, C3-C6 alkynyl, C3-C7 cycloalkyl, C1-C6 perfluoroalkyl or (C3-C6 cycloalkyl)C1-C6 alkyl; R<4> taken together with the nitrogen atom to which it is attached completes a pyrrolidinyl, piperidino, morpholino, or 4-N-(R<6>)-piperazinyl group; R<5> is H, C1-C4 alkyl, C1-C3 alkoxy, NR<7>R<8>, or CONR<7>R<8>; R<6> is H, C1-C6 alkyl, (C1-C3 alkoxy) C2-C6 alkyl, hydroxy C2-C6 alkyl, (R<7>R<8>N)C2-C6 alkyl, (R<7>R<8>NCO)C1-C6 alkyl, CONR<7>R<8>, CSNR<7>R<8> or C(NH)NR<7>R<8>; R<7> and R<8> are each independently H, C1-C4 alkyl, (C1-C3 alkoxy)C2-C4 alkyl or hydroxy C2-C4 alkyl; and pharmaceutically acceptable salts thereof, are selective cGMP PDE inhibitors useful in the treatment of cardiovascular disorders such as angina, hypertension, heart failure and atherosclerosis.
Patent HU-T47506-A (HU)
Title: Rotating sprayer apparatus
Inventor: GURUBI GABOR
IPC: C02F3/02
Filed: 1986-03-21
Abstract: The mechanism comprises outer and inner distributor cylinders, located coaxially. Liq. inlet pipe around which the whole assembly rotates, and which is connected to the inside of the inner cylinder. The space between the outer and inner cylinders is connected to the inside of the inner cylinder at the top end of the inner cylinder. The inside of at least one distributor arm is connected to the inside of the inner cylinder. The inside of at least one of the other distribution arms is connected to the space between the inner and outer distributor cylinders.
Patent HU-T40057-A (HU)
Title: Process for preparing afterhardening building material, particularly concrete
Inventor: FAY FERENC
IPC: C04B14/00
Filed: 1984-04-25
Abstract: The prod. is prepd. by adding to the mixt. of cement, water and aggregate 5-40 wt.% based on cement, but at least 40-140kg per cubic metre mixt. ground fly-ash with a particle size of 0.001-0.2mm and a density less than that of the cement.
Patent HU-T64410-A (HU)
Title: Ladder and joint for teh delimitation of the opening angle of the ladder's foots
Inventor: BEHNKE THORSTEN
IPC: F16B21/18
Filed: 1991-08-08
Abstract: The invention relates to a ladder, in particular a stepladder or double ladder, with mutually pivotable pairs of stiles (14), made of hollow, semi-hollow or open profile pieces, which have openings (29, 30) for plug-in elements (31) of connecting means, for example straps, chains, cables or the like, the connecting means being able to limit the angle between the mutually pivotable pairs of stiles. The end pieces of the plug-in elements (31) are provided with elastically deformable blocking elements (40) which can be inserted in the stiles and prevent the plug-in elements from being pulled out of the opening. <IMAGE>