baber/WOPTO huggingface dataset:
Patent GB-1469267-A (GB)
Title: Fire sensing system including an ionization chamber
IPC: G08B17/11
Filed: 1974-11-26
Abstract: 1469267 Ionization gas detector circuits CERBERUS AG 26 Nov 1974 [26 Nov 1973] 51172/74 Heading G1N A fire detecting and alarm system comprises a free-running multi-vibrator oscillator circuit for detecting a change in an electrical characteristic of an ionization chamber due to the presence therein of fire aerosols or smoke, the ionization chamber being exposed to the atmosphere and constituting a frequency determining component of the oscillator circuit, and a frequency detector providing an alarm signal upon detection of a predetermined change in the frequency of the oscillator circuit, The ionization chamber 11, comprising electrodes 11a, 11b and a radio-active source 11c, is connected as a resistor in the charging circuit of a capacitor 7 in a multi-vibrator comprising field effect transistors 3, 4 and a further capacitor 8 charged via a resistor 2. The penetration of fire aerosols or smoke into the chamber 11 increases its resistance, thereby increasing the period of oscillation of the multi-vibrator and reducing its frequency. -A frequency detector FD actuates an alarm when the frequency decreases below a predetermined value. The frequency detector FD may also actuate the alarm if the frequency increases due to deterioration of the ionization chamber itself. In a second embodiment, the capacitor 8 may be charged by a further ionization chamber 12, Fig. 2 (not shown). Two ionization chambers may be combined as a single chamber 20, Figs. 4 and 5 (not shown) connected as two capacitor charging resistors or as drain resistors of the FET's 3 and 4. In a further embodiment two ionization chambers 17, 18, Fig. 3 (not shown) are connected as capacitors in the multi-vibrator circuit, their capacitances being altered in the presence of fire aerosols or smoke.
Patent GB-1205830-A (GB)
Title: Improvements relating to buttons
Inventor: KALINOWSKY KARL HEINZ
IPC: A41B1/22
Filed: 1968-10-29
Abstract: 1,205,830. Buttons. R. BERNING [trading as ASTOR-WERK OTTO BERNING & CO.]. 29 Oct., 1968, No. 51228/68. Heading A3H. A plastics button has a cage-shaped sewing-stem 2 moulded on to the button floor such that roots 3<SP>1</SP>, 4<SP>1</SP>, 5<SP>1</SP> are upwardly disposed relative to the underside of the button floor. Bars of the cage may be circular or of rhombic cross-section with a corner pointing outwardly.
Patent GB-512806-A (GB)
Abstract: 512,806. Methacrylic esters. BROWN, J. H., WATT, J. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 16, 1938, No. 8183. [Class 2 (iii)] Vinyl and ethylidene esters of methacrylic acid are manufactured by reacting methacrylic acid with acetylene in the presence of freshly precipitated mercuric sulphate or phosphate and free sulphuric or phosphoric acid. The acetylene is preferably passed into the acid more quickly than it reacts in order to keep the catalyst in suspension by maintaining the liquid in a state of agitation, though this result may also be achieved by providing a mechanical stirrer or by diluting the gas with an inert diluent such as nitrogen. The reaction may be carried out at ordinary or somewhat elevated temperatures, e.g. 30-100‹C., if desired in the presence of an antipolymerization catalyst, e.g. sulphur, hydroquinone or tannic acid. The catalyst may be prepared in situ, e.g. by dissolving mercuric oxide in the methacrylic acid, adding excess sulphuric or phosphoric acid, and preferably removing the water formed, e.g. by adding an organic acid anhydride such as acetic anhydride or, preferably, methacrylic anhydride or, in the case of the sulphate, by replacing part of the sulphuric acid by oleum. Alternatively, the catalyst is prepared separately, e.g. by dissolving mercuric oxide in excess of glacial acetic acid by boiling, adding sulphuric or phosphoric acid, filtering off the precipitate, washing, e.g. with methacrylic acid, drying and mixing with sulphuric or phosphoric acid. In examples: (1) a mercuric sulphate catalyst prepared as just described is added to methacrylic acid, containing some methacrylic anhydride, acetylene is passed into the mixture at 30-40‹C., until it is no longer absorbed, the free sulphuric acid is neutralized with potassium methacrylate and, after filtration, the esters are separated by fractional distillation ; (2) the reaction of (1) is carried out while gradually raising the temperature to 90‹C. ; (3) the reaction of (1) is carried out at 40-50‹C. in the presence of a mercuric phosphate catalyst prepared as described above. The Provisional Specification is not restricted to working in the presence of free sulphuric or phosphoric acid.
Patent GB-1071561-A (GB)
Title: Moulding of plastic
IPC: B29C33/38
Filed: 1964-12-17
Abstract: 1,071,561. Moulding moulds. R. B. BUONAIUTO. Dec. 17, 1964 [Jan. 29, 1964], No. Heading B5A. 51472/64. A mould for the production of foamed polymeric articles by dielectric heating comprises a plastic mould body which is lined, in the stratum immediately underlying and including the moulding surface, with porous material intimately bonded to the body. The porous material is stated to form a better surface to the foamed article. As shown the mould is formed by the surface of a pattern of an article 10 being coated for example by brushing or coating with a film 12 of a solidifiable viscous material. Whilst the film 12 is still wet, flock 14 is applied'either by sprinkling or by a flocking gun. When the film 12 is dry, a backing 16 is sprayed or otherwise applied to form the plastic mould body, the backing being formed of polyester resin reinforced with chopped glass fibre reinforcing strands or an epoxy resin reinforced with sand, and cooling tubes 18 are incorporated in the backing. The pattern 10 is then removed, and the film 12 is removed, for example by means of a solvent. In another example of how the mould is made, the backing is first formed, and then brushed or sprayed with a layer of adherent material, which when still wet is sprinkled with nylon flock. In another embodiment, Figs. 4 to 9 (not shown), the article is placed in a bath of hot gelatine and water, which is subsequently allowed to gel. The gel is then stripped from the bath and article, painted or sprayed with aqueous polyvinyl alcohol and then coated with nylon flock. A backing layer of glass fibres and polyester is applied and allowed to set. The gel is then stripped.
Patent GB-1097821-A (GB)
Title: Device for positioning one member in respect of another to which it is slidably attached
Inventor: KNOSP ROBERT NOLAN
IPC: B23Q16/00
Filed: 1964-12-22
Abstract: 1,097,821. Drilling. FOSDICK MACHINE TOOL CO. Dec. 22, 1964, No. 52121/64. Headings B3B and B3C. In a machine tool, a plurality of spaced gauging elements 23, Fig. 9, are disposed in a row parallel to the relative movement of a member 20 carrying an abutment 28 for contacting one of the elements to stop the movement, the elements being rotatable to a non- gauging position. Tool feeds and speeds of a drill spindle 7, Fig. 1, are selected under numerical tape control as in Specification 933,923, in association with apparatus as in Specification 1,054,378 to control the depth of the holes drilled or reamed, the work 10 being automatically positioned by movement of superposed slides, such as described in Specification 893,795. Since the quill 5 has a limited movement, the drill head 4 is automatically positioned having regard to the different levels of work-faces to be drilled. The head is moved by rack-and-pinion gearing operated by a rapid traverse motor 15 and a final positioning motor 16, both driving through a common differential gearing, and is clamped by actuation of a motor 17 which operates a T-bolt through a cam and yoke. The head is adjustably connected to the cross-head 20, the adjusting means including a pinion 172, Fig. 10, locked by a solenoid 178 acting through toggles 175 and a lever 173. The cross-head 20, Fig. 9, which is mounted by rollers 58 on rails 56, carries the abutment 28 to contact the flanged gauging elements 23 constituted by stacked gauge blocks defining one-inch intervals. The stack is counterbalanced by adjustable spring means. A scale 24 and a pointer 25 give a visual indication of the drill head position. To allow free movement of the head, the gauges 23 are rotated by solenoid means to bring recesses 27 therein into alignment with the abutment 28. During adjustment, the instantaneous position of the head is gauged by a feed-back potentiometer 30 having a pinion 31 engaging a fixed rack 32. To eliminate back-lash, the pinion 31 is mounted in a block which is spring-urged towards the rack. In operation, fast traverse of the head is stopped when the potentiometer 30 is in balance in a circuit including a positioning resistance selected by the numerical control system. The head is stopped so that the abutment 28 is below the selected gauge element. The gauges are then rotated to operative position, and a rapid traverse upwards of the head commences and is stopped by a switch arm engaging the selected gauge element. Slow upward movement of the head follows until the abutment contacts the selected gauge element and moves the whole stack upwards causing a lever system 38, 40, Fig. 5, to actuate a switch 41 and stop the head in its selected position. A visual indication of the final setting is given by a dial indicator 43 operated by a lever 46. Safety switches prevent over-travel of the cross-head, including a switch 157 actuated by the lever 40 upon over-travel of the gauge stack.
Patent GB-1415347-A (GB)
Title: Fuel tank of thermoplastics
IPC: B60K15/03
Filed: 1972-11-13
Abstract: 1415347 Blow-moulding; fuel tank BADISCHE ANILIN- & SODA-FABRIK AG 13 Nov 1972 [13 Nov 1971] 52287/72 Heading B5A A thermoplastic fuel tank comprises a body with a filling tube, a tubular ventilation conduit, a closure element and one or more securing elements, e.g. lugs for mounting of mounting elements, formed integrally with each other by blow-moulding. The filling and ventilation tubes may be screw-threaded. During blowmoulding, the angle α<SP>1</SP> between the appendage and the base of the body of the tank may be formed at 10-20 degrees, being subsequently deformed to an angle α of 20-70 degrees, bending being facilitated preferably by heating the zone below the appendage which is to be deformed, or by having heat-insulating elements in the mould. Alternatively, if the final angle is about 30 degrees or less, the appendage may be formed at this angle by blow-moulding. The material may be a homopolymer or a copolymer of ethylene and/or of propylene, a polyamide or a thermoplastic polyester.
Patent GB-1411319-A (GB)
Title: Handle structure for suitcases and the like having rolling means
IPC: A45C5/14
Filed: 1973-11-13
Abstract: 1411319 Handles for suitcases Y URUSHIBARA 13 Nov 1973 [13 Aug 1973] 52527/73 Heading A4G A handle e.g. for a suitcase 2 having rolling means (3), Fig.1 (not shown), at the bottom comprises a main body 10 having a central grip portion 10a and two columnar portions 10b, an extractable grip 30, and telescopic tubes 21a-21d within the portions 10b for connecting the grip 30 to the body 10 so that the body 10 and grip 30 may be grasped together for carrying the case 2, or the grip 30 may be pulled out for rolling it on the means (3). Metal reinforcing strips 31, 11 are provided, the strip 11 being extended to form portions 11b for pivotal connection to a mounting seat 12 bolted to the case 2. Compressed rubber washers 16 on flattened end portions 11a of the strip 11 engage surfaces 12b of the seat 12, biasing the handle to vertical position on turning the portions 11b relative to the seat 12.
Patent GB-1547551-A (GB)
Title: Fuel injection system for an air-compression internal combustion engine
IPC: F02M55/00
Filed: 1977-12-19
Abstract: Such a system has an adjustable delivery pump element (1), which delivers the fuel to an injection nozzle (6), and is designed for favourable fuel consumption and good smoke behaviour in the upper load range. In order to improve the unfavourable conditions prevailing in the lower load range, that is high fuel consumption and poor exhaust emission quality, the pump element (1) is designed in such a way that in the lower load range and when the engine is idling, virtually the full injection pressure required at full load is available on the injection bore (7). In order to reduce the excessive delivery rates and delivery quantities thereby occurring in the upper load range, an overflow valve (11) is provided between the pump element (1) and the injection nozzle (6) in order by simple means to prevent a deterioration of the operating data in the upper load range. <IMAGE>
Patent GB-1536859-A (GB)
Title: Aircraft
IPC: B64B1/00
Filed: 1975-12-23
Abstract: 1536859 Aircraft ALL AMERICAN INDUSTRIES Inc 23 Dec 1975 [23 Dec 1974] 52711/75 Addition to 1460822 Heading B7W In an aircraft comprising a rotatable wing device and a ballon structure structurally linked to the rotatable wing device for rotation therewith and having a control cab disposed below the wing chamber by a rotatable joint as claimed in parent Specification the suspension device connecting the cab to the balloon structure has its rotatable joint positioned substantially at the centre of the balloon structure, which is formed with a downwardly opening conical cavity whereby the suspension device may swing laterally.
Patent GB-1515909-A (GB)
Title: Method and apparatus for discriminating against extraneous particles in optical testing
IPC: G01N21/82
Filed: 1975-12-30
Abstract: A chamber (15) for accommodating a test tube (24) holding the solution to be tested is located in a light-tight housing (12). A laser (13) is arranged such that the laser beam (14) can penetrate into the solution through an opening (28, 29). Situated as a light trap opposite the said opening is a recess (31) which is lined with light-absorbing material. Located at the external end of a light-passing channel (32) extending at approximately 45 DEG relative to the direction of the laser beam is a photodetector (36) for receiving the scattered light emanating from the solution. A NOT element is used to negate the output signal of the photodetector and to add to the negated signal by means of a circuit a constant signal of the same polarity as the interference signals but having a value exceeding the amplitude of the interference signals. Furthermore, a comparator and an electronic switch are provided for eliminating the negated interference signals. A filter element for smoothing the output signal is connected at the output of the electronic switch. The smooth output signal is fed to a digital display via an amplifier. <IMAGE>
Patent GB-1135498-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D405/04
Filed: 1967-11-22
Abstract: 1,135,498. Nitrofuran derivative. NORWICH PHARMACAL CO. 22 Nov., 1967 [7 Dec., 1966], No. 53268/67. Heading C2C. The novel compound 4-acetyl-5-acetylimino- 1-methyl- 3- ( 5-nitro -2-furyl ) #<SP>2</SP> 1,2,4-triazoline is prepared by reacting 5-imino- 1 -methyl-3-(5- nitro-2-furyl)-#<SP>2</SP>-triazoline with an acetylating agent, e.g. acetic anhydride. Antibacterial compositions comprise the novel compound together with a pharmaceutically acceptable carrier or diluent. The compositions may be in the form of dusts, sprays, solutions, elixirs, suspensions and unguents.
Patent GB-1079178-A (GB)
Title: Improvements in pesticide compositions for destroying internal worm parasites in animals
Inventor: LIENERT EMIL
IPC: A61K31/165
Filed: 1966-07-27
Abstract: Compositions in dosage unit form for treating internal worm parasites in animals comprise a carrier and a compound of the general formula: (I) <FORM:1079178/A5-A6/1> wherein X is an I, Cl or Br atom, at least two of the substituents X being iodine.  The invention also comprises the method of destroying internal worm parasites in animals by administering compositions comprising the active compounds of the invention.
Patent GB-1407327-A (GB)
Title: Bagatelletype game apparatus
IPC: A63F7/00
Filed: 1973-11-21
Abstract: 1407327 Bagatelle game A E GOLDFARB 21 Nov 1973 [4 Dec 1972] 54035/73 Heading A6H Apparatus for playing a game comprises a board having a plurality of means 26 at one end for propelling playing pieces (balls or blocks) along the board into receptacles which are arranged in rows along the board and some of which can receive two (or more) playing pieces aligned in the direction of the row. The projectors 26 are resilient plastics blades, but may be spring-pressed plungers. The balls may be of different colours. Screws may adjust the tilt of the board. If blocks are used, the receptacles are formed by raised portions of the board. The board may contain "traps", barriers or guides for the pieces.
Patent GB-1377650-A (GB)
Title: Diazepine derivatives and a process for their manufacture
IPC: A61K31/4985
Filed: 1971-11-22
Abstract: 1377650 5 - Triazolo - benzodiazepine derivatives CIBA-GEIGY AG 22 Nov 1971 [23 Nov 1970] 54047/71 Heading C2C Novel compounds of the general Formula I wherein R 1  is hydrogen or C 1-3  alkyl; R 2  is hydroxy, C 1-6  alkoxy or alkanoyloxy, a mono- or di-aryl methoxy, a 2-oxacycloalkoxy having 5 to 7 ring members or fluorine; and A is a C 1-3  alkylene group and wherein each of the rings B and C may be substituted by one or more fluorine, chlorine bromine, trifluoromethyl or C 1-6  alkyl or alkoxy, and 5-N-oxides and their salts may be prepared by (a) where R 2  is other than C 1-6  alkanoyloxy condensing a compound II wherein X is mercapto, C 1-2  alkoxy or alkylthio optionally activated by a substituent, or an unsubstituted or mono- or di-substituted amino, with a compound R 2 -A-CONHNH 2  where R 2  is other than alkanoyloxy; (b) where R 2  is hydroxy and A is methylene, ethylene, trimethylene or propylene, reduction of a compound IV wherein A<SP>1</SP> has one less methylene group than the required A group and Y is a hydrocarbon radical having up to 8 carbon atoms; (c) cleaving of a compound I in which R 2  is mono- or diarylmethoxy or 2-oxacycloalkoxy to yield a compound I in which R 2  is hydroxy (d) esterification of the R 2  hydroxy group to give a C 1-6  alkanoyloxy group at R 2 ; (e) forming a 5-N-oxide of the compound I and/or (f) salt formation. The intermediate compound 6-phenyl-8-chloro- 4H - s - triazolo[4,3-a][1,4]benzodiazepine - 1- carboxylic acid ethyl ester may be prepared by a similar method to (a) using a corresponding compound II wherein X is methylthio and oxalic acid mono ethyl ester hydrazide in place of R 2 -A-CONHNH 2 . The intermediate hydrazides may be prepared by reaction of an alkyl ester of R 2 -A-COOH with hydrazine hydrate optionally followed where R 2  is hydroxy by debenzylation of the appropriate compound in which R 2  is benzyloxy. 2 - (Tetrahydropyran - 2 - yloxy) - acetic acid n-butyl ester may be prepared by reacting 3,4- dihydro-2H-pyran with glycollic acid n-butyl ester in acid conditions. Pharmaceutical compositions of the compounds I show anticonvulsant and tranquilizing activity and may be used to treat epilepsy by administering orally or rectally with the usual excipients.
Patent GB-1381285-A (GB)
Title: Hollow composite webs
IPC: B29C48/00
Filed: 1971-11-22
Abstract: 1381285 Laminated extrusions ASAHI KASEI KOGYO KK 22 Nov 1971 [20 Nov 1970] 54220/71 Headings B5A and B5N A hollow plastics panel, e.g. for use as a constructional board, or a wall panel, comprises opposed preformed sheets 3, 3<SP>1</SP> each having projecting ribs 2, 21 extending intermediate the ribs of the other and being fused to a preformed sheet 9, of corrugated configuration, at locations at which the sheet 9 is fused to the sheets 3, 3<SP>1</SP> at the surfaces thereof extending between the ribs 2, 2<SP>1</SP>. The plastics may comprise polyester, polypropylene, or polyethylene. The sheets 3, 3<SP>1</SP> are each vertically downwardly extruded, from separate dies each of the sheet configuration supplied by separate extrusion sources, and are solidified by passage around guide rollers through separate cooling baths followed by drying during passage between compressed air jets. The sheets 3, 3<SP>1</SP> are then guided by rollers, e.g. 109, 125, to be fused to the sheet 9, extruded from means 8, during passage between pressure rollers 10, 10<SP>1</SP> (which may be heated) through which, and between water cooled sizing plates 12, 12<SP>1</SP>, the panel is drawn by endless belts 13, 13<SP>1</SP>, for cutting by a cutter 14. The fusion may be effected merely by the heat of the extruded sheet 9, or in addition by reheating of the sheets to a temperature below and near their melting point, and which may be effected by infrared heaters 16, 16<SP>1</SP> and/or reheating of the ends of the ribs 2, 2<SP>1</SP> during their sliding passage over electrically heated plates 120, 126. The reheating also effects annealing of the sheets 3, 3<SP>1</SP>, when of crystalline polyethylene or polypropylene, and this may be enhanced by additional heating between the rollers 10, 10<SP>1</SP> and plates 12, 12<SP>1</SP>.
Patent GB-1216859-A (GB)
Title: Improvements in roll bearings for roll stands
IPC: F16C27/02
Filed: 1968-11-15
Abstract: 1,216,859. Rolling. SCHLOEMANN AG. 15 Nov., 1968 [22 Dec., 1967], No. 54311/68. Heading B3M. [Also in Division F2] The shaft 1 of a roll is journalled in a bush 5 which is provided on its bearing surface with grooves through which fluid is passed to cool and lubricate the bearing. The external periphery of the bush 5 is provided with grooves in which are located keys 6 which serve to secure the bush against rotation in the housing 3. At the end of the housing remote from the roll there is provided a member 4 which abuts a member 8 secured to the end of the shaft to accept the axial load of the roll. Cooling fluid is forced through the casing and lubricates the thrust bearing and then flows through the grooves in the bush and leaves the casing via the gap between the cover 7 and the shaft. In order to facilitate the assembly of the roll, the casing at one end is formed of two sleeves 3a and 3b which engage in a fluid-tight manner and held together by two hooks 9 which are maintained in position by springs 10.
Patent GB-1098840-A (GB)
Title: Improvements in and relating to a tractor-mower combination
IPC: A01D34/06
Filed: 1965-12-23
Abstract: 1,098,840. Tractor-mounted mowers. F. MORTL and K. MORTL. Dec. 23, 1965 [Dec. 23, 1964; April 6, 1965], No.. 54577/65. Heading A1F. A mowing machine wherein the cutter is driven by a flywheel 3 and pitman 4 comprises an arm 6 pivotally connected at 7 and 8 respectively to a tractor and the cutter bar. The flywheel is mounted on the arm and is driven from a p.t.o. shaft 1 via a belt 2 and pulleys. The shaft of the flywheel is so arranged relative to the p.t.o. shaft that the belt will be slackened when the mowing machine is raised. In an alternative embodiment a centrally arranged p.t.o shaft drives via an endless belt an input shaft of a gear box mounted on an arm pivoted to the side of the tractor, the axis of the input shaft being substantially coaxial with the pivot axis of the arm. The input shaft drives through gearing a shaft having a flywheel mounted thereon.