baber/WOPTO huggingface dataset:
Patent GB-1320651-A (GB)
Title: Fire alarm systems
IPC: G08B17/00
Filed: 1971-04-19
Abstract: 1320651 Alarm systems; fire alarms NITTAN CO Ltd 19 April 1971 [31 March 1970] 25235/71 Headings G4H and G4N [Also in Division H3] In a fire alarm system, each of a plurality of fire detector units, connected in parallel through a pair of conductors to a central station, responds to fire by producing an oscillation with a frequency characteristic respective to the unit, this being discriminated by the central station. General.-A plurality of heat or smoke detectors are connected by a common pair of lines to a central station. On detection of fire, a detector sends an AC frequency specific to the detector, and a D.C. level, to the central station where the D.C. level actuates a relay via a low-pass filter to light a lamp and actuate a sound generator, and the A.C. frequency is passed by a high-pass filter to a bank of parallel band-pass filters one of which lights a respective lamp via a rectifier to identify the detector. Details of detectors.-In Fig. 2, a bimetallic element 21 responds to heat to close a switch 22 thereby altering the D.C. signal across the pair of lines 1, 2 and changes the biasing voltage of transistor 51 to cause blocking oscillator 5 to apply A.C. of a characteristic frequency to lines 1, 2. In Fig. 3, an ionisation smoke detector has two ionisation chambers 61, 62 respectively closed and open to the air, smoke causing increasing conduction in FET 63. If sufficient,  this triggers zener diode 65 to make SCR 66 conduct, altering the D.C. across the lines 1, 2 and actuating a tuning-fork oscillator circuit 7 which feeds A.C. of a characteristic frequency to lines 1, 2 via a resonant-circuit amplifier 25, 26. Fig. 5 (not shown), shows a modification of Fig. 3 in which the oscillator circuit 7 and circuitry to the right of it are omitted, and the secondary of a transformer is inserted in series with SCR 66, the transformer primary being fed from a continually-running oscillator. In Fig. 6, A.C. from oscillator 30 normally does not pass to transformer 32 due to diodes 33, 34, but closure of switch 37 (corresponding to 22 in Fig. 2, or SCR 66 in Fig. 3) causes a D.C. flow between lines 1, 2 via diodes 33, 34 which permits the A.C. to pass to transformer 32 and so to lines 1, 2. An audible alarm may be given at the detector, fed from a second secondary on transformer 52 of Fig. 2 or 32 of Fig. 6 or from an extra transformer inserted in series with SCR 66 in Fig. 5 (not shown).
Patent GB-631306-A (GB)
Title: Improvements in optical sighting devices
IPC: G02B23/14
Filed: 1944-12-15
Abstract: 631,306. Optical sighting devices. BARR & STROUD, Ltd., and FRENCH, Sir J. W. Dec. 15, 1944, No. 25259. [Class 97 (i)] The sighting device consists of a single optical element as of glass having a plane object end with an index mark or marks on its surface and an eye end comprising a plane portion through which an object is viewed and a convex portion by which said mark or marks is or are focused so that the object is viewed simultaneously with the index mark or marks. As shown, an index mark 8 on the plane object end 14 of the element is in the focus of a convex portion 7 at the eye end of the element and is viewed simultaneously with an object seen through a plane portion 10, which may be parallel to the plane end 14 to avoid chromatic aberration. In another form, the object end and eye end form two sides of a triangular internallyreflecting prism with the plane portion 10 orthogonal to the object end. The element may also be in the form of a pentagonal doublyreflecting prism.
Patent GB-1243578-A (GB)
Title: Improvements in or relating to coated abrasive articles
Inventor: GREENWOOD JAMES
IPC: B24D11/00
Filed: 1969-05-19
Abstract: 1,243,578. Coated abrasive products. CARBORUNDUM CO. Ltd. 20 April, 1970 [19 May, 1969], No. 25303/69. Heading C4V. A coated abrasive article comprises a backing material to which adhesive grains are adhered, a size coat and a supersize coat comprising polyvinyl acetate. The polyvinyl acetate may be plasticized and the backing may be paper. The adhesive may be hide glue, the abrasive particles are aluminium oxide and the size coat a liquid phenolic resin.
Patent GB-1189124-A (GB)
Title: Improvements in Methods of Forming Metallic Patterns
Inventor: STUART PETER RAWSTHORNE
IPC: H05K1/09
Filed: 1966-06-07
Abstract: 1,189,124. Ornamenting. NATIONAL RESEARCH DEVELOPMENT CORP. 30 May, 1967 [7 June, 1966], No. 25369/66. Heading B6G. [Also in Divisions B2 and C7] A metallic pattern is formed on a substrate by subjecting metallic material containing a polymerizable organic component in situ on the substrate to charged particle bombardment to polymerize the component and thus fix the material on the substrate in selected areas constituting the desired pattern. Electricallyconductive patterns on the substrate are thereby formed. An overall coating may be effected by flooding the substrate with the patterning material and spinning, or a selective coating of those parts forming the pattern may be affected by silk-screen printing. The hole is then dried to remove excess solvent and placed in a vacuum chamber of an electron beam machine. The machine is then caused to scan the coated substrate surface in the desired pattern to effect localized fixing of the patterning material. The scanning of the beam may be effected by a computer. The substrate is finally washed in a suitable solvent for the unpolymerized patterning material which removes all the coating except the part scanned by the beam. The pattern substrate is then baked. The metallic patterning material may consist of a solution or suspension of precious metal or previous metal compounds together with adhesion promoting agents in an organic liquid. During the final baking step the organic components of the preparation are either oxidized or volatilized and the metal compounds reduced to metal. The substrate may be glazed or unglazed alumina. The metallic patterning materials may also be sprayed on to the substrate.
Patent GB-1140655-A (GB)
Title: Pyrazine derivatives
IPC: C07D241/22
Filed: 1967-06-01
Abstract: 1,140,655. Sulphanilamido-pyrazines. SOCIETA FARMACEUTICI ITALIA. 1 June, 1967 [6 June, 1966], No. 25407/67. Heading C2C. Novel 2 - sulphanilamido - pyrazine - 4 - oxide and -1-oxide are prepared by the condensation of 2-chloropyrazine-4-oxide or 2- chloropyrazine-1-oxide with sulphanilamide in the presence of a base or with a sulphanilamide alkali metal salt in the presence of a solvent. Pharmaceutical preparations having antibacterial activity contain as active ingredient the above novel compounds and are preferably administered orally, e.g. in the form of powders, tablets, pills or capsules.
Patent GB-441822-A (GB)
Title: Improvements relating to metal tube drawing machines
IPC: B21C1/32
Filed: 1935-09-13
Abstract: 441,822. Drawing. REYNOLDS, A. M., Hay Hall Works, Tyseley, Birmingham. Sept. 13, 1935, No. 25435. [Class 83 (iv)] Mandrels.-A tube-drawing machine, adapted to employ at least two mandrels from which tubes are drawn through a die or dies, has interdependent and oppositely movable means to hold one mandrel in position to receive a tube to be drawn while the other is in the tubedrawing position. Two pairs of mandrels q are supported on a carrier j, which is slidable upon actuation of a lever s. Rods v carry fingers w and one rod is raised and the other lowered by pedals 2 or 3 to move one pair of mandrels q into tube-receiving position and the other pair to the drawing position. The mandrels may be pivotally mounted on the carrier or may be sufficiently flexible to allow the deflection. The drawing operation is effected by a carriage d and hook and chain e, f.
Patent GB-1202048-A (GB)
Title: Preparation of non-protein nitrogenous compositions
Inventor: BROOKS JOHN
IPC: A23K50/15
Filed: 1967-06-02
Abstract: 1,202,048. NPN compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 May, 1968 [2 June, 1967], No. 25501/67. Heading A2B. A non protein nitrogen composition is prepared by mixing a water soluble polymeric material, such as cellulose ether, starch, starch either, natural gums, sodium alginate, or polyvinyl alcohol, with a substantially anhydrous molten NPN compound, such as urea. The composition may be formed into granules or blocks, which may be coated with a waterproof polymeric material, for example polyvinyl chloride or a copolymer thereof with polyvinyl acetate. The composition may also contain a hydrophobic material, such as calcium stearate, grain meal, spices, and mineral additives.
Patent GB-223935-A (GB)
Title: Method of and means for burning pulverized fuel in furnaces
IPC: F23M5/08
Filed: 1924-10-27
Abstract: 223,935. Fuller-Lehigh Co., (Assignees of Gaffney, J. B.). Oct. 27, 1923, [Convention date]. Pulverulent-fuel furnaces.-Pulverulent fuel is burnt under a pressure above that of the atmosphere in a combustion chamber supplied with air under pressure through a multiplicity of openings 13, 13<a> in one or more of the walls and bottom of the combustion chamber which is surrounded by a jacket 15 enclosing a chamber 14 divided by partitions 19 into compartments supplied with air under pressure by a fan 16. The pressure of the air in the various compartments is controlled by valves 20 in the branch pipes 18 leading from the fan. The fuel may be supplied horizontally or vertically through nozzles 8, 9 arranged in the air inlet openings 12, 10 respectively. When the fuel is fed from above, it may be fed by a screw to the burner tube 9 and enter the furnace by gravity. The residues of combustion are removed through doors 24 and an opening 21 closed by a door in the bottom of the combustion chamber. An ash-pit 23 provided with a door 26 is arranged below the floor 5.
Patent GB-301587-A (GB)
Title: A cutter for cutting paper or like sealing or holding material used on boxes
IPC: B65D77/30
Filed: 1927-09-28
Abstract: 301,587. Crawford, A. H. Sept. 28, 1927. Opening by cutting. - In a device for severing the paper and sealing- band of boxes, an upturned cutting portion 6 is inserted between the box 1 and the lid 2, and a lug 5 is bent over the lid to hold the device in position while the band 3 is severed by manipulation of a handle 7.
Patent GB-475299-A (GB)
Title: An improved frame for holding, carrying or transporting articles of a fragile nature
IPC: B65D81/07
Filed: 1936-09-22
Abstract: 475,299. Containers for thermionic valves &c. ASTLEY, A. Sept. 22, 1936, No. 25677. [Class 18] A frame or container for holding thermionic valves, electric lighting lamps, X-ray tubes, incandescent lighting elements, &c. comprises a body, Fig, 3, cover 2 having slots 4 engaged by rubber &c. bands 5 or spiral or other springs between which the article is held when the body and cover are juxtaposed. The container may also be in the form of a cardboard &c. troughshaped element 11, Fig. 7, which can be unfolded, and may be contained within a tubular cover 18.
Patent GB-978183-A (GB)
Title: Improvements in or relating to sound transducers for nondestructive testing of materials and ultrasonic diagnosis
Inventor: HOTZEL FRANZ
IPC: G01N29/24
Filed: 1963-06-28
Abstract: 978,183. Ultrasonic probes. CARL ZEISS JENA VEB. June 28, 1963, No. 25834/63. Heading H4J. Two cylindrically - curved piezo - electric elements 13, 14 operating as emitter and receiver respectively are so cemented to wedges 11, 12 of plastic material adapted to be placed on a test specimen 5 that their wave radiation fields diverge towards the specimen and overlap each other. The outer marginal rays 16, 18 of the two fields are perpendicular to the surface of the specimen 5 while the inner marginal rays 15, 17 intersect each other just beneath the surface. The wedges 11, 12 are separated by a sound-insulating layer 19 of cork or the like and have sound-dispersing corrugations 20 on their outer edges.
Patent GB-1526124-A (GB)
Title: Sealed container having a breather assembly
IPC: A61F5/441
Filed: 1976-06-22
Abstract: 1526124 Breather element for container PLASTRONICS Inc 22 June 1976 [17 Sept 1975] 25857/76 Heading B8K A sealed container of non-porous plastics material, e.g. PVC, has a breather assembly 24 in a wall 12 thereof which permits free passage of gas therethrough. The assembly 24 comprises a breather element 26 formed by a woven substrate of synthetic material, e.g. nylon, coated with plastics material, e.g. a copolymer of PVC and possibly acrylonitrile, and a retaining ring 28, having a central opening 32, made from a non-porous plastics material, e.g. PVC, and mounted on the wall 12 with the opening 32 in substantial alignment with an opening 34 in the wall. The element 26 is mounted between the ring 28 and the wall 12 and the ring is fused by electronic welding to the wall, at 36, and the element, at 40, to prevent liquid in the container from flowing round the edge of the breather element 26. As described the element 26 acts a bacterial filter and is fused to the wall 12 at 38. The container is a bedside drainage bag including an inlet fitting 18 with a tube 20, and a drainage assembly 22. The breather assembly may be mounted on the inside of the wall 12.
Patent GB-601829-A (GB)
Title: Improvements in or relating to rip cord operating devices for parachutes
IPC: B64D17/54
Filed: 1945-10-04
Abstract: 601,829. Parachutes. CAMBRIDGE INSTRUMENT CO., Ltd., and STALLAN, W. J. Oct. 4, 1945, No. 25879. [Class 4] Rip-cord operating mechanism for parachutes comprises means, preferably adjustable, to delay operation automatically for a predetermined period of time after the commencement of a jump, means serving automatically to render inoperative the delay means until a predetermined minimum, and preferably adjustable, height above ground is attained in the event of a jump originating at a height exceeding the minimum height, and means enabling operation to be performed in the normal manner by the wearer, if conscious. In the form illustrated, the mechanism includes an adjustable clockwork mechanism controlled by a cranked lever b, an adjustable barometric capsule h connected to a lever g and a catch v carried on a lever q and operating a Bowden wire 3 connected to the rip-cord. A stop c normally locking the lever b is released when the parachutist leaves the aircraft, and if the jump is made at a great height the lever b makes a half-turn and then comes into contact with the end f of the lever g. When the parachutist descends to the height corresponding to the setting of the capsule mechanism, the lever b is released and the clockwork runs for the predetermined period. In the event of the jump being made from a height below that of the capsule setting, the lever end f is inoperative, and the clockwork begins to operate when the lever b is released by the stop c. The clockwork is stopped by the engagement of a projection r, Fig. 3, with an abutment s on a bar t, and at the same time the end n of a lever o drops into a notch m to release the lever q carrying the catch v, to free the spring- operated plunger w connected to the Bowden wire 3 and thus open the parachute. A slotted link 14 prevents operation of the mechanism in the event of the time delay setting being zero, this link preventing the lever end n from entering the notch m unless the stop c has been released.
Patent GB-671998-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/14
Filed: 1950-10-25
Abstract: 671,998. Air filters. HOOVER, Ltd. Oct. 25, 1950 [Nov. 8, 1949], No. 26006/50. Class 8 (ii). [Also in Group XXV] The open neck 27 of a paper filter bag 13 is detachably and air tightly secured to the exhaust duct 18 of a suction cleaner casing 10 by the folds being pressed by one or more fingers 30 in one or more recesses 28, resulting in the slack material being taken up and the neck being drawn taut round the duct 18. Each finger 30 is pivoted at a pin 33 and has two spring arms 29 which when finger assumes a position parallel to the duct axis enters the appropriate recess 28 and are latched therein by a spring 35 engaging a slot 34. An outer filter bag cover 14 is secured at lower end to a detachable ring 17 to which is pivoted at a pin 20 an extension plate 19 of the duct 18. The upper end of the cover 14 is hooked to the cleaner handle, pivoting of which is accommodated by a flexible sleeve 24 between the ring 17 and the duct 18.
Patent GB-860047-A (GB)
Title: Polymerisation process
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F36/04
Filed: 1958-08-14
Abstract: Conjugated dienes are polymerized at elevated temperature in a liquid vehicle and at elevated pressure using as catalyst a mixture of (1) aluminium, (2) a halide of copper, silver, divalent mercury or lead, and (3) titanium or vanadium di- or tri-chloride, bromide or iodide. Specified dienes include butadiene, isoprene, piperylene, 2-neopentyl-butadiene, myrcene, alloocimene, cyclopentadiene, dimethyl fulvene, phenyl-butadienes, diphenyl fulvenes, chloroprene, their mixtures and their mixtures with ethylene propylene, butene 1 and 2, cyclohexene, methyl cyclohexene, cycloheptane, styrene, the methyl styrenes, alpha-methyl styrene, the alkyl benzenes and toluenes, the vinyl naphthalenes, indene, allene, di-allyl, di-methallyl, squalene, 1-vinyl cyclohexene-3, and the divinyl benzenes.  Aliphatic and aromatic hydrocarbons are the specified liquid vehicles.
Patent GB-503080-A (GB)
Title: A method of stabilising solutions sensitive to heat
IPC: A61K47/02
Filed: 1937-09-27
Abstract: 503,080. Sterilizing pharmacentical preparations. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.} Sept. 27, 1937, No. 26124. [Class 81 (i)] In the process of heat sterilizing pharmaceutical solutions having a pH at normal temperature suitable for pharmaceutical application but liable to decomposition at sterilization temperature unless the pH is displaced to the acid side, a salt of a strong acid and a weak base is added to the solution so that on heating the solution will become more acid but will return to a pH appropriate for application on cooling ; in the case of preparations unstable at sterilization temperatures unless the pH is more alkaline than that appropriate for use, a salt of a strong base and weak acid is added. Salts of the kind referred to are the ammonium salts of hydrochloric, hydrobromic and hydriodic acids, the hydrochloride of ethylene diamine and secondary sodium phosphate or tertiary sodium citrate. Example 1. To a 1 per cent aqueous solution of para - butylaminobenzoyldimethylaminoethanol, 0'8 per cent of ammonium chloride is added before sterilization by boiling. Example 2. To an aqueous solution of 0'05 per cent strength of ortho-dihydroxyphenylpropanolamine 0'8 per cent of ammonium chloride is added; with 1-ortho-dihydroxyphenyfethanolmethylamine similar effects result. Example 3. To a 1-25 per cent solution of diethylaminomethylphenylphosphinic acid sodium salt a mixture of 1 per cent secondary sodium phosphate or sodium citrate and 0'4 per cent sodium chloride are added. In each case the decomposition . on heating is substantially reduced.
Patent GB-771698-A (GB)
Title: N-carboxyalkyl hexityl amines
Filed: 1954-09-09
Abstract: The invention comprises compounds of the formula <FORM:0771698/IV(b)/1> wherein (C6H13O5) is the hexane pentol residue of a hexityl amine, R is C1-3 alkyl or C1-3 hydroxyalkyl, n is 1 or 2 and Y is hydrogen or an alkali metal (e.g. lithium, sodium or potassium).  The hexityl amine may be derived from hexitols such as sorbitol, mannitol and dulcitol. Specified hexityl amines are N-methyl, N-ethyl, N-propyl, N-hydroxyethyl, N-hydroxypropyl and N-dihydroxypropyl glucamines, and N-methyl and N-ethyl fructamines. The compounds are prepared by reacting these hexityl amines of the formula <FORM:0771698/IV(b)/2> with a carboxyalkylating agent capable of introducing a carboxyalkyl radical or a radical convertible thereto by hydrolysis or saponification (e.g. ester, amide or nitrile radicals).  Specified carboxyalkylating agents are monochloroacetic acid, monobromacetic acid, sodium chloracetate, potassium chloracetate, a -chloropropionic acid, a -bromopropionic acid, b -chloropropionic acid, b -bromopropionic acid, acrylic acid, acrylic acid esters, glycolonitrile, lactonitrile, and acrylonitrile.  The examples describe the preparation of N-methyl N-carboxymethyl glucamine, N-methyl N-carboxyethyl glucamine, N-ethyl N-carboxymethyl glucamine and N - ethyl N - carboxyethyl glucamine.  Specification 446,737, [Group IV], is referred to.
Patent GB-463304-A (GB)
Title: Improvements in or relating to reflectors
IPC: G02B5/124
Filed: 1935-09-20
Abstract: 463,304. Reflectors. GALLIANO, M-A. M. J. Sept. 20, 1935, No. 26159. Convention date, Sept. 20, 1934. [Class 97 (i)] A reflecting unit is derived from an ordinary trihedral reflector by drawing from the point 1 at which the vertical axis meets the base 9, three lines each inclined at an angle of about 40‹ to the said axis and each lying in a plane containing one edge of the trihedron, these lines meeting the reflecting surfaces in points 7. The lower part of the trihedron is then removed along vertical planes tangential to the circle 14 passing through the three points 7. For example if the lower part is removed along three planes each containing one of the points 7 and parallel to an edge of the base, a reflecting unit of the form shown in Fig. 4 is obtained which is triangular in plan and comprises a prism surmounted by a trihedron. By using six severing planes a unit of hexagonal form in plan is obtained. A.number of units of the above kind can be combined to produce compound reflectors of a variety of forms. For example Fig. 5 shows a central unit 11 combined with three further units 11 at, 11b; 11c, having their apices at the corners of a triangle the centre of which is the apex of the unit 11.
Patent GB-508568-A (GB)
Title: Improvements in and relating to means for operating a plurality of flaps
IPC: F01P7/02
Filed: 1937-09-27
Abstract: 508,568. Cooling cylinders. BRONZAVIA SOC. ANON. Sept. 27, 1937, Nos. 26160 and 26161. Void. Convention dates, Nov. 19, 1936, and May 24, 1937. [Class 7 (ii)] [Also in Group XXXIII] Means for operating a plurality of flaps, e.g. for controlling the flow of air through the cowling of an aeroengine, includes, in order to effect opening of the flaps, an extensible device or devices carried by the flaps. In one form, flaps 4 pivoted to, or flexibly connected with, an aircraft-engine cowling are opened and closed on straightening of the interconnected links 10 pivoted to similarly disposed points 14 on each flap. Play may be provided in the articulations to facilitate opening. In a modification, the links are replaced by a lazy-tongs system of links which is closed by a hydraulic or pneumatic jack secured to the cowling and links, or mounted between opposite points on the lazy-tongs. In further modifications, the flaps are opened by expansion of a tubular element connected to the panels. In these forms, springs are provided to return the panels and links limit opening of the panels. The links and springs are connected between tubes housing the tubular element. In order to vary opening of the panels, one set of links may be replaced by links of different size.
Patent GB-1078389-A (GB)
Title: Liquid dispensing device for animals
Inventor: WINTER RICHARD WILLIAM
IPC: A01K7/02
Filed: 1964-01-29
Abstract: 1,078,389. Animal feeding appliances. BERWYN ENGINEERING Ltd. and FEED SERVICES (LIVESTOCK) Ltd. Jan. 29, 1964, No. 26162/66. Divided out of 1,076,575. Heading A1M. [Also in Division F1] A liquid dispensing device for animals comprises a block 30 slidably mounted in a sleeve 35 adapted to be positioned in a liquid container and having a liquid inlet controlled by a ball valve 40, the block 30 having a central bore 31 with a ball 33 held loosely on its seating by circlip 34. Downward pressure by an animal on block 30 forces liquid from recess 42 past ball 33 into bore 31 and to upper surface 43. When pressure is released, spring 41 forces the block upwardly drawing liquid past ball 40 into recess 42. Excess liquid from surface 43 drains back into the container through holes 37.