baber/WOPTO huggingface dataset:
Patent GB-895261-A (GB)
Title: Improvements relating to measuring the volume of the weight of bodies passing through a conduit
IPC: G01F1/74
Filed: 1960-05-31
Abstract: 895,261. Automatic flow density control systems. RIETER & CIE. JOH. JACOB A.G. May 31, 1960 [June 1, 1959], No. 19258/60. Class 38 (4). [Also in Group XL (b)] The volume or weight or bodies flowing through a conduit is measured and controlled by arranging that they interrupt a beam of light directed through the conduit on to a photoelectric cell and summing the squares of the periods of interruption. This sum is proportional to the volume, or weight for equal density bodies, flowing at random interval. The weight flowing of bodies of specific weight proportional to the periods of interruption, for example tufts of cotton, is determined by measuring the sum of the cubes of the periods. The photo-cell output (waveform a) is amplified (waveform b) squared by a trigger circuit (waveform c) integrated (waveform d) and integrated again so as to form a signal (waveform f) corresponding to the mean sum of the squares of the periods of interruption. This signal is supplied to an indicator, a recorder, or a regulator controlling a motor governing the rate of flow. To derive the cubes of the periods of interruption the signal d may be fed to a further integrating circuit having an output waveform e.
Patent GB-1384949-A (GB)
Title: Halogenated methylol phenols
IPC: C07C39/24
Filed: 1972-04-26
Abstract: 1384949 Halogenated methylol phenols SCHENECTADY MIDLAND Ltd 26 April 1972 [26 April 1971] 19462/72 Heading C2C [Also in Division C3] A mixture of halomethylated phenols corresponding to the general formula in which X is bromine, iodine, hydroxy and R is alkyl or aryl, the average number of phenolic nuclei per molecule being not greater than 6 and 65 to 85% of the total of bromoethyl, iodomethyl, methylol and methylene ether bridge groups being bromomethyl or iodomethyl groups is claimed. The mixtures may be made by bromination or iodination of the corresponding phenols and the starting dimethylolp-alkyl (or aryl) phenols can be prepared by reacting approximately 2 moles of formaldehyde with 1 mole of a p-alkyl (or aryl) phenol using alkaline catalysts.
Patent GB-671206-A (GB)
Title: Improvements in or relating to electric impedance networks
Inventor: CHATER BERNARD JAMES
IPC: H01P1/16
Filed: 1950-08-04
Abstract: 671,206. Mode filters for wave-guides. STANDARD TELEPHONES & CABLES, Ltd Aug. 4, 1950, No. 19504/50. Class 40 (viii). A mode filter for a waveguide 1 comprises a number of superimposed layers 5 of solid dielectric material and a number of conductive strips 4 each deposited in the form of a coating on a respective one of these layers. The dielectric may be of mica and the coating of silver. The stack of strips may be formed into a unit by soldering their top and bottom edges together.
Patent GB-746349-A (GB)
Title: Apparatus for conveying magnetizable sheets
IPC: B65G47/71
Filed: 1954-07-02
Abstract: 746,349. Sheet delivery apparatus. UNITED STATES STEEL CORPORATION. July 2, 1954 [Feb. 5, 1954], No. 19521/54. Class 100 (1). [Also in Group XXX] Apparatus for classifying magnetizable sheets 5 comprises two conveyers 2, 4 spaced apart and between which are located magnetizable rolls 8, 22 and a fixed deflector 6, the arrangement being such that normally the roll 22 is magnetized so that the sheets pass from the conveyer 2 over the deflector 6 to the conveyer 4 for delivery into a pile 16, If, however, it is desired to divert sheets from the conveyer 2 to a third conveyer 18, the magnetizable roll 8 is energized, the roll 22 being de-energized, and the sheets travel below the deflector 6 for delivery to a second pile 20. Current is supplied to one or other of the magnetizable rolls 8, 22 from a source 24 and relay contact 34, the latter being controlled by a switch 40.
Patent GB-401807-A (GB)
Title: Improvements in electric lampholders
IPC: F21V19/00
Filed: 1932-07-11
Abstract: 401,807. Electric - lamp holders. GENERAL ELECTRIC CO., Ltd., and DEBENHAM, W. F. S., Magnet House, Kingsway, London. July 11, 1932, No. 19561. [Class 39 (ii).] In an electric-lamp holder of the kind comprising a body portion made of insulating material including an inclined socket for a lamp cap, a pair of metal rods 6, Figs. 1 and 2, located within a recess at the back of the insulating body 1 and serving as supply conductors are each held in position by a screw 8 which forms a supply conductor to one of the contacts in the socket 2. In the example the socket is of the screw-threaded type with a metal liner 3 connected to a pin 4 which is let into a recess in the base of the socket and receives the screw 8 passing through one rod 6, a similar pin being connected to the centre contact of the socket and secured by a screw to the other rod 6. A closing-block 9, Fig. 3, with a central ridge 10 fits between the adjacent surfaces of the parallel conductors 6. The ends of the rods 6 are recessed and the adjacent parts of the insulating body provided with holes 11 to receive supply conductors which are received in position by lateral screws 7. The socket and contacts may be modified to receive a lamp of the bayonet-joint type.
Patent GB-845910-A (GB)
Title: A method and apparatus for moulding concrete
IPC: B28B1/093
Filed: 1957-06-21
Abstract: 845,910. Moulding concrete. RIHA, J. June 21, 1957, No. 19594/57. Class 87(2). Concrete mixture passes from the hopper 1 through the adjustable tapered outlet 5 to a series of moulds 3 mounted on conveying means 13 for movement beneath the hopper and then past a system of adjustably fixed profiled vibration surfaces 6 so that the concrete is subjected to vibration compression and then to an adjustably fixed smoothing plate 8 for smoothing the upper surface of the concrete, the area beneath the vibration surfaces 6 and the smoothing plate 8 on the underside of the conveying means being adjustably sprung. By inserting tubular cores 11 rigidly suspended on the hopper, articles having cavities may be produced.
Patent GB-965274-A (GB)
Title: Fluid filtration plant
Inventor: AUSTIN CYRIL ERNEST
IPC: B01D33/11
Filed: 1961-05-31
Abstract: 965,274. Straining liquids; gas filters. AUSTIN-IBIS DEVELOPMENTS Ltd. May 31, 1961, No. 19707/61. Headings BID and B1T. A filter drum 1 is mounted to revolve freely about a horizontal axis, a pipe 5 discharges effluent or gas inside the drum, thereby causing it to revolve, and a spray of liquid is directed from a tube 8 extending across the surface of the drum so that the residue and liquid collect in a trough 10 extending from inside the drum to a discharge gutter 12 outside one end of the drum. The drum may have a peripheral surface of a fine non-ferrous, or nylon, gauze.
Patent GB-260060-A (GB)
Title: Improvements in or relating to holders or adaptors for thermionic valves
IPC: H01R33/94
Filed: 1925-08-05
Abstract: 260,060. Benjamin Electric, Ltd., and Ffennell, K. S. M. Aug. 5, 1925. Vacuum tubes. - An anti-vibration valve adapter has a carrier portion 4 supported on a base 1 by conductor springs 3 of strip or sheet metal each having a part 3a fixed to the carrier and adapted to engage with a valve pin, a part 3b fixed to a contact pin 2 on the base, and an intermediate part spirally coiled. The ends of the spring may be formed as split sockets to engage with the valve pins and contact pins; or the lower sockets may be extended to form pins. Movement of the springs is limited by extensions 3f and a screw stop 5, or by one or more pins on the carrier extending through holes in the base. In a modification the lower part of each spring is replaced by an L-shaped extension secured by a screw to a contact pin. In other arrangements the valve sockets and contact pins are secured to the springs, for instance by riveting, soldering, or set-screws. Specification 250,431 is referred to. Specification 222,086 also is referred to in the Provisional Specification.
Patent GB-663542-A (GB)
Title: Power-assisted control surfaces for dirigible craft
Inventor: MEREDITH FREDERICK WILLIAM
IPC: B64C13/00
Filed: 1948-07-23
Abstract: 663,542. Automatic control systems for dirigible craft. SMITH & SONS (ENGLAND), Ltd., S. July 18, 1949 [July 23, 1948], No. 19814/48. Class 38 (iv). In a control system for an aircraft having a manually operated light control surface and a power assisted main control surface, when the light control surface is moved beyond a limiting position, a circuit is completed which energizes the main surface operating motor to bring the two surfaces into substantial alignment. As shown, Fig. 1, the light control surface 3 is adjusted manually by means of rods 8, 12 and links 6, 7, and the main surface 2 is adjusted by motor 10. When 3 is moved relative to 2 beyond a given angle the arm 17, Fig. 5, makes contact with either 18, 19 and either relay 29 or 30 is operated and the D.C. motor 16 rotates so as to move 2 into alignment with 3, when 17 is centralized between 18, 19. In an alternative form, not shown, the power supply is A.C. and the amplitude of the voltage applied to the motor is proportional to the misalignment between 2, 3. Specifications 576,248, 576,249, 576,351, 617,240, 643,815, [Group XXIX], and 647,369, [Group XXXIII], are referred to.
Patent GB-876871-A (GB)
Title: Improvements in slide valves for discharging railway wagons
IPC: B61D7/22
Filed: 1958-06-20
Abstract: 876,871. Arcuate valves. TALBOT, R. June 20. 1958, [April 30, 1958], No. 19840/58. Class 78 (1). [Also in Group XXXII] A container or railway truck 1 has an outlet 10 which leads to a fixed discharge shoot 9, and the discharge of material down the shoot is controlled by arcuate valve 11 pivoted at 50, the shoot being V-shaped to permit the valve to straddle the shoot, as shown.
Patent GB-1134352-A (GB)
Title: Improvements in or relating to the production of layers of a solid nitride of a semiconductor element on semiconductor crystals
IPC: C23C16/34
Filed: 1967-05-01
Abstract: 1,134,352. Nitride layers. SIEMENS A.G. 1 May, 1967 [2 May, 1966], No. 19916/67. Heading C1A. A nitride of a semi-conductor element (Si, Ge, or B) is deposited as a layer on the heated surface of a semi-conductor crystal by deposition from a reaction gas comprising a halogencontaining compound of the semi-conductor element and a nitrogen compound, the components of the gas being mixed immediately adjacent the heated surface. The halogencontaining compound may be RSiX 3 , RR<SP>1</SP>X 2 , R 2 R<SP>1</SP>X, (R 2 N) 2 SiX 2 , (R 2 N) 2 SiX-NRXSi(NR 2 ) 2 , or X 3 Si-NR-SiX 3 , where R and R<SP>1</SP> are H, alkyl or aryl, and X is Cl, Br, F, or I; preferred compounds are SiCl 4  and SiHCl 3 . The nitrogen compound may be NH 3 , N 2 H 4 , or an alkyl or aryl amine. The reaction gas may also contain a rare gas, H 2 , or N 2 . The semiconductor crystal may be Si, Ge, or a III-V compound, and may have a coating of a metal, SiO 2 , or glass. It may be heated to 400- 800 C. by resistance, induction, or gas discharge heating. Ge and B are referred to only.
Patent GB-338566-A (GB)
Title: Process for the production of nitric acid from ammonia
IPC: C01B21/26
Filed: 1929-08-13
Abstract: 338,566. Caro, N., and Frank, A. R. Aug. 13, 1929. Divided on 337,847. Nitric acid is prepared by the combustion of ammonia with oxygen or gases containing oxygen under normal pressure, the resulting nitrogen oxides being compressed, after leaving the combustion elements, to a pressure of several atmospheres in a turbo-compressor and converted under this pressure into nitric acid by condensation and absorption. The gases may be cooled before compression to separate excess of water. The gases remaining after absorption are allowed to expand in an expansion turbine coupled with the turbocompressor. Specifications 311,553 and 311,934 are referred to.
Patent GB-1196899-A (GB)
Title: Seals between Sintered Ceramic Parts
Inventor: EVANS DAVID TOM
IPC: H01J5/24
Filed: 1969-04-18
Abstract: 1,196,899. Joining ceramic articles; shaped alumina articles. THORN LIGHTING Ltd. 18 April, 1969, No. 20031/69. Headings C1A and C1J. The tubular envelope of a discharge lamp is made from a sub-micron, ball-milled alumina powder, containing a small amount of magnesia, by isostatic pressing at 5 tons per square inch and firing at 1100‹ C. to a density of 1À84 gm. cm<SP>-3</SP>. Some of the same ball-milled magnesiacontaining alumina powder is spray dried from an aqueous suspension, which can contain an organic binder, to produce spheroidal particles having a higher bulk density than the ballmilled powder. End plugs for the envelope are made by compacting the spray-dried powder at 5 tons per square inch and firing the compacts at 1100‹ C. to a density of 2À15 gm. cm<SP>-3</SP>. The plugs are machined, if necessary, to fit tightly inside the envelope and the envelope and plug assembly is sintered in hydrogen at 1800‹ C. to a density of 3À95 gm. cm<SP>-3</SP>. The envelope shrinks more than the plugs to achieve a hermetic seal with grain growth across the interface. The plugs may have one or more holes for electrodes and/or exhaust tubes. The differential shrinkage can be controlled by using materials of different compositions; by pressing the plugs at a higher pressure than the envelope or by partially sintering the compacted plugs before machining.
Patent GB-754604-A (GB)
Title: Diisocyanate-modified polyester elastomers
IPC: C08G18/42
Filed: 1954-07-08
Abstract: Rubber-like materials are obtained by reacting a mixture of a linear saturated polyester and up to 50 per cent by weight of the total mixture of a linear unsaturated polyester, both polyesters containing hydroxyl groups, with an amount of diisocyanate at least equivalent to the hydroxyl groups, followed by cross-linking of the product through the unsaturated component. The unsaturated polyester preferably contains a small proportion only of unsaturated component. In examples, mixtures of varying proportions of a polyester from adipic acid and ethylene glycol of hydroxyl number 56 and acid number 1.8, and a polyester from 6 moles. adipic acid, 1 mole. maleic acid and ethylene glycol of hydroxyl number 56 and acid number 2, are reacted with varying proportions of 1.5 naphthalene diisocyanate at about 130 DEG  C., the product cast into moulds and and heated at about 100 DEG  C. for up to 20 hours.  Physical properties of the cured materials are tabulated.  A polymerization accelerator, e.g. a peroxide, may be added before the reaction mix is cast into moulds.
Patent GB-811738-A (GB)
Title: Improvements in or relating to electromagnetic wave guides
IPC: H01P3/13
Filed: 1956-06-28
Abstract: 811,738. Coiling. SIEMENS & HALSKE A.G. June 28, 1956 [June 28, 1955; Aug. 31, 1955 (6)], No. 20086/56. Class 83 (4). [Also in Group XL (b)] In apparatus for making a waveguide comprising a flat metal strip wound into a helix with its edges forming the inner and outer surfaces of the waveguide wall (see Group XL (b)), metal strip 40 is withdrawn from a reel 41 and wound on a mandrel 38 by a winder 37 rotated about the latter. The winding is facilitated by the engagement of the strip 40 in a recess 39 in the winder 37. Alternatively, the winder comprises a split ring 47, Fig. 22, deformed into a single-turn helix and secured to a sleeve 46 rotatable in a groove in the mandrel. The pitch of the helix is pre-set in conformity with the desired pitch of the wound strip 40.
Patent GB-793690-A (GB)
Title: Improvements in or relating to radar simulator and like systems
Inventor: FENEMORE RONALD WILLIAM
IPC: G01S7/40
Filed: 1954-07-08
Abstract: 793,690. Radar simulators. MULLARD RADIO VALVE CO., Ltd. July 8, 1954, No. 20087/54. Class 40 (7). In a radar jamming simulator, which may be used with either an actual or a simulated P.P.I. radar system, signals, representative of echoes from stationary and moving objects, together with synthetic jamming signals, are generated and are modulated to represent the effect of both orientation of the aerial and the range of the jamming aircraft. Signals are added representing echo signals from the jamming aircraft. As shown, the jamming signals developed at 1, 2, 3 are modulated at 15 in accordance with the resultant of signals representing the range of the jamming aircraft and changes in the receiving aerial polar diagram. The modulated jamming signals are then added at 21 to signals 45, representing echoes from the jamming aircraft, and passed through amplifier 22 to a C.R.T. display system. The signals representing the jamming aircraft echoes and range are developed at a constant speed differential 40. The signals representing polar diagram variations are produced at the photoelectric cell 36. The photo-cell is illuminated by a beam of light intercepted by a rotating mask 30 which is shaped to represent the aerial polar diagram and which has an angular velocity equal to the difference between the aerial speed and the azimuth changes of the jamming aircraft. Alternatively the rotating mask may be replaced by a reflecting surface or by a rotating drum or by a cam.
Patent GB-1030378-A (GB)
Title: Improvements in and relating to drive devices for motor vehicle speedometers
Inventor: BERGAUER ERICH
IPC: G01P1/04
Filed: 1964-05-14
Abstract: 1,030,378. Toothed gearing. MOTORRADWERK ZSCHOPAU VEB. May 14, 1964, No. 20135/64. Heading F2Q. [Also in Division G1] The speedometer of a two-wheeled or other motor vehicle is driven through a flexible shaft engaged in a slot 8 of the shaft 7 of a pinion 6, whose substantially radial teeth are circular in cross-section, by the shaft 2 of a sprocket wheel 3 locked to a gear-wheel 4, whose teeth 4<SP>1</SP> are normal to the plane of its hub and form arcs of circles or spirals. The gear-wheel 4 may be stamped from steel plate and the pinion 6 may be injection moulded from a polyamide directly on the shaft 7 or separately and connected by pinning, clamping or by a force fit. Silent . running is thus produced without lubrication.
Patent GB-1514944-A (GB)
Title: Process and apparatus for forming hollow plastics article
IPC: B29C49/06
Filed: 1975-05-13
Abstract: 1514944 Injection blow moulding NATIONAL CAN CORP 13 May 1975 [13 May 1974] 20175/75 Heading B5A In an injection blow moulding process the core rod having a head 58 of porous material is extended within the blow mould 92 to stretch the parison while pressure fluid is supplied to separate the parison from the surface of the rod, the parison then being fully inflated, Fig. 5. Prior to injection, a preformed liner 80 is placed on the core rod to which suction is applied and, during stretching of the laminated parison, a spring-biased rod 98 engages the bottom of the parison.
Patent GB-334005-A (GB)
Title: A detachable open-neck or byron collar for use with "collarband" shirts
IPC: A41B3/04
Filed: 1930-04-01
Abstract: 334,005. Gompertz, R. W. B. April 1, 1930. Collars, linen and like. - A detachable open-neck collar for wear with an ordinary neckband type of shirt consists as shown in Fig. 1 of two layers with buttons b, x on the inside of one layer co-operating with buttonholes in the other layer. The neckband and port of the bosom of the shirt is sandwiched between the two layers thereby enabling an open effect of a shirt with a fixed open neck collar to be simulated as shown in Fig. 2.
Patent GB-794789-A (GB)
Title: A centrifugal separator
IPC: B07B7/08
Filed: 1956-07-02
Abstract: 794,789. Centrifugal separators. WAAGNER - BIRO AKT. - GES. July 2, 1956 July 1, 1955], No. 20345/56. Class 23 A separator for separating particles from a fluid comprises a whirl chamber 1, a tangential inlet 5 to the chamber, containers 2, 3 for collection of the particles and an outlet tube 4 for the fluid extending into a container. The particles may be discharged from the containers through outlets 11, 12. The containers may be connected by a pipe 8 for the discharge of particles from the container 2 to the container 3 or for the flow of fluid from the container 3 to the container 2. Sprays may be incorporated in the whirl chamber or adjacent the outlet 4 which may have a convergent or divergent end. In a modification (Fig. 6, not shown) the containers are connected by an annular passage surrounding the whirl chamber. In a further modification (Fig. 3, not shown) the separator has a horizontal axis, and an outlet tube extending into each container.
Patent GB-1156721-A (GB)
Title: Improvements in and relating to Cast Metal Part and apparatus therefor
IPC: C30B11/00
Filed: 1966-05-09
Abstract: 1,156,721. Casting processes; moulds. UNITED AIRCRAFT CORP. 9 May, 1966 [27 May, 1965; 17 Feb., 1966], No. 20371/66. Heading B3F. [Also in Divisions B1, C7 and F1] A mould for casting turbine blades from a nickel based super-alloy by forming a single axially extending crystal having one of its axes less than 20 degrees from the longitudinal axis of the turbine blade, comprises an enlarged base portion 61 opening on to a water-cooled chill plate 22, a constricted passageway 63, a mould cavity 65 and a mouth 66. Random and columnar crystals form in the base portion 61, but a single crystal forms from the end of the passageway 63. A graphite susceptor 70 surrounds the mould and the casting operation may be carried out in a vacuum or in an inert, e.g. argon, atmosphere. Induction heating coils 72 are provided to maintain a temperature gradient away from the cooled chill plate 22 to ensure longitudinal solidification of the blade. The Specification contains a variety of material Specification of nickel base alloys suitable for single crystal forming in the mould, and the results of tests carried out on test samples. Heat treatment of the finished machined blade may be carried out and a sintered protective coating may be provided. The alloys described fall within the range containing, by weight, Cr 2-25%, Co 1-30%, Al 0-9%, Ti 0-6%, Mo and W 2-14%, Nb 0-3%, V 0-1À2%, the balance being nickel plus impurities.
Patent GB-690749-A (GB)
Title: Improved device for lifting the head lines of a fishing net
IPC: A01K75/04
Filed: 1950-08-17
Abstract: 690,749. Floats for fishing nets. PIERLOT, M. R. L. Aug. 17, 1950 [Aug. 18, 1949; April 14, 1950], No. 20453/50. Class 48. A device for lifting the headline of a net comprises either an elongated hollow body 5, Fig. 6, of circular cross section and a sheet-like member 7 spaced therefrom to form a flow channel between the body and the member or two roundended hollow cylinders 18, 19, Fig. 11, spaced laterally by two sheet like members 20, 21, a flow channel being formed between the cylinders and the sheet members. The float body 5 is streamlined and is provided with eyelets 6 or apertured ribs for attaching it to the headline and it may have fins. The plate 7 is wider at the front than at the rear and may be curved or corrugated transversely. A further flow channel 13 is formed by a tube coaxial with the float. The upper plate 20, Fig. 11, is longer than the lower plate 21 and its rear or front edge may be bent downwardly. The distance between the plates may increase towards the rear. A vertical wall 22 increases stability. In another construction a streamlined hollow body is mounted between two cylinders each of which is joined to the streamlined body by a pair of spaced plates.
Patent GB-1394275-A (GB)
Title: Reinforcing steel cords for rubber articles
IPC: B60C9/00
Filed: 1972-05-03
Abstract: 1394275 Steel reinforcing cords INDUSTRIE PIRELLI SpA 3 May 1972 [18 May 1971] 20467/72 Heading D1T A steel cord, used as reinforcement for rubber articles such as pneumatic tyres, comprises one strand formed by at least two single wires helically wound together, and at least one wire or tape helically wound about the strand, the winding pitch of the or each wire or tape having a value of from 38% to 47%, and preferably 40% to 45%, of the stranding pitch of the central strand. The strand pitch may vary from 9.5% to 14 mm.