baber/WOPTO huggingface dataset:
Patent GB-1012899-A (GB)
Title: Air cooled gas turbine blades
IPC: F01D5/18
Filed: 1964-10-22
Abstract: 1,012,899. Gas turbine blades. SULZER BROS. Ltd. Oct. 22, 1964 [Oct. 29, 1963], No. 43187/64. Heading FIT. A hollow, air cooled, gas turbine blade having a fir tree root 2, Fig. 4, is formed from two parts a and b, Fig. 2, joined along at least part of a joint face extending through the leading and trailing edges of the blade and through the end faces of the root, the two parts defining between them an opening through which a member 12 can be introduced into and removed from the blade interior 11. Each blade root receiving groove 3 in the turbine rotor 4 has a cylindrical base portion 15 receiving the radially inner end of the member 12 formed with projections 14 and 16. The portion of the member 12 contained within the blade is formed with projections 13 which may have deformable edges for reliable engagement with the blade. Air is introduced into the groove 3 through a conduit (not shown) in the rotor, and flows into the blade interior, where the member 12 ensures that the cooling air effectively sweeps the blade walls. A continuous weld seam m extends between the two parts a and b along the leading edge of the blade, whereas the weld n along the trailing edge is interrupted to leave gaps (not shown) through which air may leave the blade interior. A gap 24 is also left between the parts a and b at the outer tip of the blade.
Patent GB-1071000-A (GB)
Title: Improvements in or relating to apparatus for pneumatic unloading of pulverulent materials
Inventor: CARLSEN HELMUTH WILLIAM
IPC: B65G53/42
Filed: 1965-10-12
Abstract: 1,071,000. Pneumatic conveyers. INTERCONSULT A.B. Oct. 12, 1965, No. 43230/65. Heading B8A. A suction nozzle for a pneumatic conveyer used in unloading pulverulent material from ships comprises an annular chamber 4 connected at 6 to air under pressure and having a flared porous inner wall 2 whereby the air is introduced into the material. The assembly is slidably adjustable on the pipe 8 and has legs 9 which prevent the nozzle becoming sealed against the bottom of a cargo hold.
Patent GB-1235508-A (GB)
Title: A rotor blade for a rotor craft
IPC: B64C27/02
Filed: 1968-09-11
Abstract: 1,235,508. Helicopter rotor blades. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 11 Sept., 1968 [12 Sept., 1967], No. 43274/68. Heading B7W. In order that the bending forces arising from its lag-lead movement be less than the centrifugal forces acting along its length, a fibre reinforced plastics rotor blade may be provided with two fibre reinforced plastics root end loops 4, 5 lying side-by-side and enclosed by a metal fitting comprising two halves 7, 8. Bolts may pass through the loops lined with bushes 9 to connect the blade to a rotor hub. In a further embodiment which provides for a reduction in forces arising from lag-lead and flapping movement, a blade has a pair of double loops in which one pair is superimposed above the other. In another embodiment, a blade is provided with one loop lying in the lag-lead plane and one loop lying in the flapping plane.
Patent GB-1402001-A (GB)
Title: Method of withdrawing hazardous gases from subterranean formations
IPC: E21F7/00
Filed: 1972-09-19
Abstract: 1402001 Withdrawing hazardous gases from mineral deposits EXXON PRODUCTION RESEARCH CO 19 Sept 1972 [12 Oct 1971] 43281/72 Headings E1F and E1X Hazardous gas is withdrawn from a watersaturated subterranean formation containing a mineral deposit prior to or during mining of the deposit, by drilling a plurality of wells into the formation, withdrawing water from the formation to establish permeability to gas within the formation, and withdrawing hazardous gas from the formation by means of the wells. The wells are of a conventional type having a large borehole lined with a metal casing with a smaller diameter pipe string disposed therein, there being no packers in the annular space between the casing and pipe string. The pipe string extends below the bottom of the formation to lower the water level in the well to a level below the formation, and a pump is provided within the pipe string at or near its bottom. Communication between the interior of the casing and the formation is provided by means of perforations in the casing. In the case of an existing mine, the wells are drilled at locations around the mine, and air is introduced into the mine at a pressure greater than the pressure existing in the wells to cause the air and hazardous gas to flow from the mine to the wells. In the case where a mine working has not been opened, a plurality of wells are drilled around the periphery of the mineral deposit and air enters the deposit via the casing annular space which is open to atmosphere. Once permeability to gas has been established within the formation, a mine working is opened and a vacuum can be applied to the casing annular space to withdraw the hazardous gas e.g. methane, hydrogen sulphide, or radon, therefrom.
Patent GB-1468738-A (GB)
Title: Filters with frusto-conical sieves
IPC: B01D29/01
Filed: 1974-10-07
Abstract: 1468738 Filters A ELLILA 7 Oct 1974 [24 Oct 1973] 43355/74 Heading B1D The solids retained on frusto-conical sieve 1 are assisted in their movement towards outlet 3 by directing sprays of liquid from one or more rotating pipes 4 at an oblique angle to the sieve 1. The pipes may have round openings or slits or nozzles attached thereto.
Patent GB-1567990-A (GB)
Title: Digital transmission of pictures
IPC: H04N1/417
Filed: 1977-10-19
Abstract: The digital signals of each series, which are to be reordered, are supplied to one input connection (10) of the device. From the input connection, the digital signals pass to a reference signal generator (20), a comparator (30) and a control logic (200). The reference signal generator is a simple delay circuit which is sufficient for storing the digital signals of one of the series. In the comparator, the incoming digital signals are compared with the reference signals output by the reference signal generator. The reference signals are also supplied to a write address memory (300). The output signal of the write address memory is connected to the write input of a dual memory (55, 65). Depending on the type of the said output signal, the signals generated by the comparator are read into one or other of the memories of the dual memory in the dual memory. The dual memory comprises an output selector (70), controlled by the control logic (200), for providing the reordered digital signals. The reordered digital signals have a lower number of groups having identical digital signals. This device is used for better utilisation of transmission lines, for example in image transmission systems. <IMAGE>
Patent GB-1440029-A (GB)
Title: Distilling and rain catching apparatus
IPC: E03B3/03
Filed: 1973-09-17
Abstract: 1440029 Water supplies M SAKAMOTO 17 Sept 1973 [24 Jan 1973] 43517/73 Heading E1X [Also in Division B1] Rain catching apparatus comprises a support 18 having a planar portion provided with a hole 22, and a frustoconical wall diverging from the planar portion and arranged partly round the planar portion; and a transparent cover 16 comprising a hollow member having a tapering side wall, an open base and an open apex and being provided with a rim about the open base, and an arcuate collecting trough arranged within the hollow member. For use as a rain catching apparatus the parts are assembled as shown in Fig. 4, preferably with frustoconical member 42 folded from a flat flexible sheet to increase the catching surface resting in the inverted cover 16 and supported towards its upper end by the arcuate collecting trough. After use to collect rain water the parts may be reassembled together with a vessel 12 (not shown) for use as distillation apparatus to distil the water collected (see Division B1) when the arcuate trough serves to collect distillate.
Patent GB-1509349-A (GB)
Title: Apparatus and method for measuring the energy of a chemical reaction
IPC: G01N25/48
Filed: 1976-10-21
Abstract: 1509349 Calorimeters DOW CHEMICAL CO 21 Oct 1976 [22 Oct 1975] 43705/76 Heading G1D An adiabatic calorimeter comprises an insulating chamber 13 in which are positioned two vessels 14, 15 (for holding respective chemical reactants) inter-connected by a transfer conduit 20, a heater 35 and thermometer 36 attached to the vessel 14, a differential thermometer 45, 46 for sensing any temperature difference between the vessel 14 and the atmosphere in the chamber 13 and being connected to a control unit 30 and a heater 41 for the elimination of any such difference, a gas pressure supply pipe 22 for transferring the reactant in the vessel 15 to the vessel 14, a stirrer 23 in the vessel 14, and a circulator 26 for the atmosphere in the chamber 13. The chamber 13 comprises a base 11 and lid 12, is spherical inside and made from polystyrene foam, ceramic foam, brick, glass or refractory material; it is filled with air or an inert gas. The bomb vessel 14 is of stainless steel with a platinium lining and is suspended by polyester or steel cords 16; a steel conduit 20 with a valve 21 inter-connects with the auxiliary vessel 15. The stirrer 23 is rotated by a magnet 24 on a shaft 25 which drives the fan 26. The platinium resistance thermometer 36 is embedded in a copper disc 36a and linked to a recorder 40; the starting temperature of the bomb vessel is adjusted by the heater 45. The temperature of the auxiliary vessel 15 is kept at that of the bomb vessel 14 by means of differential thermocouples 54, 55, a control unit 56 and a heater 49; differential thermocouples 45, 46 with a control unit 30 and heaters 41 maintain the chamber atmosphere at the temperature of the bomb vessel 14. A pressure-transducer 50 and recorder 51 are connected with the bomb vessel. In a modification, Fig. 2 (not shown), the bomb vessel has a heater (76) and a thermometer (78) mounted in wells (28, 29) inside the vessel. Several auxiliary vessels may be provided connected by conduits to the bomb vessel.
Patent GB-1125144-A (GB)
Title: Apparatus for the electrical transmission of information
IPC: G08C19/28
Filed: 1965-10-15
Abstract: 1,125,144. Electric selective signalling. CHARBONNAGES DE FRANCE. 15 Oct., 1965 [16 Oct., 1964], No. 43850/65. Heading G4H. An analogue-to-digital converter in a transmitter feeds a digital-to-analogue converter in a receiver and both converters are controlled by the same series of periodic reference signals supplied by an alternating current power distributing network. A 3-phase A.C. supply is fed to transformers in a transmitter and a receiver to produce 6 and 12 clock pulses per cycle respectively. In the transmitter, the first 5 clock pulses close respective transistor switches to cause corresponding ones of five parallel-connected binaryweighted resistors to contribute to a reference voltage which is compared with an input analogue voltage which is to be digitized. In each of the five comparisons thus made, if and only if the input voltage exceeds the reference voltage, a burst of high frequency A.C. is gated to telephone lines leading to the receiver to represent the bit 1 and a capacitor respective to the transistor switch is charged to keep the switch closed (conducting) after the clock pulse ends (and until the conversion is complete). The sixth clock pulse resets the capacitors &c. In the receiver, the bursts of A.C. on the telephone lines are filtered and rectified and the resulting bits gated by the first 5 even-numbered clock pulses to cause the 1 bits to cause respective transistors to conduct and capacitors associated with the transistors to charge to keep the transistors conducting until after all the bits have been received. Each transistor which conducts causes a corresponding one of five parallel-connected binary-weighted resistors to contribute to a current flowing in a milliammeter, which thus indicates the analogue equivalent of the digital signals from the transmitter. The 1 bits from the transmitter may light respective lamps to indicate the exceeding of respective levels.
Patent GB-1520559-A (GB)
Title: Cationic pyrazole dyestuffs
IPC: C09B44/14
Filed: 1976-10-22
Abstract: 1520559 Cationic pyrazole dyestuffs PRODUITS CHIMIQUES UGINE KUHLMANN 22 Oct 1976 [28 Oct 1975] 43871/76 Heading C4P Novel cationic dyestuffs of the formula (wherein one of R 1  and R 3  is alkyl and the other is phenyl, chlorophenyl or methoxyphenyl; R 2  is alkyl; R 4  is H, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl or acylaminoalkyl; X is H or Cl; Y is H, halogen, CH 3 , alkoxy or acetylamino; and A is an anion) are prepared by coupling diazo derivatives of amino-pyrazoles of the formula (wherein R<SP>1</SP> 3  is H when R 1  is phenyl, chlorophenyl or methoxy phenyl or is phenyl, chlorophenyl or methoxyphenyl when R 1  is alkyl) with suitable N- trifluoroethyl anilines and then treating the products of the formula with alkylating agents. They are used to dye fibres based on polymers or copolymers of acrylonitrile or fibres based on acid-modified polyamides or polyesters in yellow to orange shades.
Patent GB-1049499-A (GB)
Title: Improvements in school desks
Inventor: WILLIAMSON FREDERICK LAWLEY
IPC: A47B41/00
Filed: 1964-10-28
Abstract: 1,049,499. School desks. EDUCATIONAL & MUNICIPAL EQUIPMENT Ltd. Oct. 22, 1965 [Oct. 28, 1964], No. 43893/64. Heading A4H. A school desk A has a top mounted on legs a<SP>1</SP> secured together by a transverse member B to which is hinged a receptacle D of U-shaped cross-section to receive books or a satchel.
Patent GB-440784-A (GB)
Abstract: 440,784. Filters. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, France. June 17, 1935, Nos. 17424 and 17425. Convention dates, June 16, 1934 and Jan. 7, 1935. [Class 46] Rotary disc filters are built up of sector-shaped sections having convex outer surfaces. These surfaces may be spherical, cylindrical, conoidal or toroidal. A section shown in elevation in Fig. 2 and cross-section in Fig. 4 has a frame 1 with external ribs 1<a> which support filtering fabric 2 of metal or fibres. The ends of the cloths are fastened to the frames by strips 3 and screws 3a and the sides of the cloth are laced together through hooks 10 attached to the cloths or, if the latter are of metal, to bands 10 soldered to the cloths. The cloths may be reinforced by grids fixed over the outside. Figs. 5 and 7 show radial sections of other forms of element.
Patent GB-871485-A (GB)
Title: Improvements in and relating to combine harvesters
IPC: A01D61/00
Filed: 1959-12-29
Abstract: 871,485. Combine harvesters. WESTERASMASKINER A.B. Dec. 29, 1959 [Dec. 30, 1958], No. 44148/59. Class 6(3). A combine harvester comprises a header wherein the cutting apparatus 4 is wider than an endless conveyer 2 and is characterized in that a rotary screw 8 is provided in a channel 12 and is arranged to move cut material over to the main conveyer. One end 17 of the screw is conically tapered end feed members are provided which during rotation of the screw are thrust forwardly radially outwardly to carry cut material to the lower side of the screw. As shown in Fig. 3, the feed members comprise a bar 26 coupled to arms 23 provided with rollers 22 guided by a fixed cam disc 21.
Patent GB-1235255-A (GB)
Title: Halogen regenerative cycle incandescent lamps
Inventor: HOLCOMB RICHARD H
IPC: H01K1/50
Filed: 1969-09-05
Abstract: 1,235,255. Electric incandescent lamp. GENERAL ELECTRIC CO. 5 Sept., 1969 [9 Sept., 1968], No. 44163/69. Heading H1F. A halogen regenerative cycle incandescent lamp comprises a tungsten filament and a fill gas including an inert gas, oxygen and a hydrocarbon compound of iodine. The compound of iodine is preferably methyl iodide but may also be iodoform or methylene iodide. The inert gas may be nitrogen, argon, krypton or xenon. A tubular element of fused silica or a glass of high softening point is used in the embodiment together with molybdenum foils. It is suggested that the transport agent in the regenerative cycle is W0 2 1 2 . The Specification compares the performance of the lamp with those containing methyl bromide or HI.
Patent GB-1130041-A (GB)
Title: Dicode decoder
IPC: H04L25/48
Filed: 1965-10-19
Abstract: 1,130,041. Transistor pulse circuits; data transmission; facsimile transmission. XEROX CORP. 19 Oct., 1965 [25 Nov., 1964], No. 44236/65. Headings H3T, H4F and H4P. Dicode signals (i.e. signals of the form shown in Figs. 2a and 2b) are converted to the original form (Fig. 1) by converting the signals to pushpull form, adding to the neutral terminal of the push-pull circuit a voltage dependent upon the peak amplitude of the signal and feeding the combined voltage to a threshold detector. As shown, the push-pull dicode signals at the secondary of transformer T are combined with a voltage applied to the centre tap equal to half the peak voltage of the positive excursion so that a first threshold circuit SR-3 causes Q6 to conduct when the negative excursion exceeds half its peak amplitude and a second threshold circuit SR-4 causes Q7 to conduct when the inverted positive pulse likewise exceeds the halfpeak value. Differentiating circuits CR-3, R-4 and CR-4, R-5 feed the resulting pulses to respective inputs of a bi-stable circuit Q8-Q9 which thus reproduces the original signal (Fig. 1). The half-amplitude voltage for 16 is derived by a peak-to-peak rectifier C-1, C-2, SR-1, SR-2 and a potentiometer R-1 which divides the rectified voltage by four. The diode signals may be provided by a facsimile transmitter.
Patent GB-1526813-A (GB)
Title: Quality control of milk
IPC: G01N33/04
Filed: 1975-10-28
Abstract: 1526813 Quality control of milk VALID MEIJERIEN KESKUSDSUUSLIIKE 28 Oct 1975 [29 Oct 1974] 44388/75 Heading G1B The quality control of milk, viz. the measurement of its catalase activity as an indication of the presence of bacteria and somatic cells, is effected by transportation of the sample to an analyzing vicinity in a sampling and transportation container which has catalase analyzer, a peroxide compound e.g. H 2 O 2 , in a quantity required for the catalase analysis being mixed with the sample at the sampling time and before its transportation, so that the catalase reaction takes place at least partly during transportation and thereafter measuring the catalase activity at the analyzing vicinity. The analyzer may comprise a combined sampling, transportation and reaction container A with a mouth B. A quality test measuring container C provided with a quality indicating scale which fits into the mouth B of container C which is filled with water to the highest mark on the scale. Container C has a pipe E for directing into C gas released during testing and a pipe D for removal of water displaced by the gas. Milk under test and H 2 O 2  are initially placed in A.
Patent GB-1389888-A (GB)
Title: Iminoisoindolinone pigments and process for their manufacture
IPC: C09B57/04
Filed: 1972-09-26
Abstract: 1389888 Iminoisoindolinone-azo pigments CIBA-GEIGY AG 26 Sept 1972 [27 Sept 1971] 44477/72 Heading C4P [Also in Division C3] New iminosioindolinone pigments of the formula where R is an optionally substituted phenyl radical; R 1  is H, Cl, alkyl, alkoxy, C 1-4  hydroxyalkoxy or C 2-8  alkoxyalkoxy, optionally Clsubstituted phenoxy, phenalkoxy, phenalkoxy alkoxy or phenoxyalkoxy group and X is Cl or Br are obtained by condensing 1 mole of an appropriate diamino-azo benzene with 2 moles of a 4, 5, 6,7-tetrahalogeno isoindolinone-1 which in the 3-position contains an imino or thioxo group or 2 halogen atoms or tertiary amino or alkoxy groups. The pigments give yellow, orange, red and brown shades on high molecular weight organic material, e.g. natural and synthetic resins, cellulose ethers and esters, polyamides polyurethanes and polyesters.
Patent GB-933883-A (GB)
Title: Glass coated steel article and method of making the same
Inventor: SULLIVAN JAMES D
IPC: C23D3/00
Filed: 1960-12-28
Abstract: A ferrous article is coated with barium phosphate before application of an enamel coating to prevent the formation of bubbles in the enamel.  The adhesion of the enamel may be improved by adding nickelous oxide to the preliminary coating.  The coating substances may be applied in a single or separate aqueous suspensions containing also bentonite and sodium nitrite.  The article is cleared before coating by shotblasting, sand-blasting, electrolytically treating as the cathode in a bath of H2SO4 or pickling with H2SO4.  The barium phosphate may be the orthophosphate or the metaphosphate.
Patent GB-1425254-A (GB)
Title: Seat for motor vehicle
IPC: B60N2/00
Filed: 1973-09-25
Abstract: 1425254 Vehicle seat cushions LANCIA & C FABBRICA AUTOMOBILI TORINO SpA 25 Sept 1973 [31 Oct 1972] 44841/73 Heading A4J and A4M The seat cushion 1 of a vehicle seat is substantially pentagonal in plan form with the front edge of the seat comprising two sides of the pentagon converging at the front towards the centre line of the cushion.
Patent GB-1020490-A (GB)
Title: Hydraulic accumulator
IPC: F15B1/24
Filed: 1962-11-28
Abstract: 1,020,490. Hydraulic accumulators. H. M. PURCELL. Nov. 28, 1962, No. 44919/62. Heading FIP. An hydraulic accumulator Fig. 1 (not shown), comprises a rigid outer cylindrical shell 1 and a resilient inner tube 6 defining therebetween an annular chamber 1e, the inner tube 6 having a piston 9 reciprocable therein to pressurize a liquid supplied through an opening 18 in a base member 1a in response to the pressure of gas supplied through an inlet valve V in a cover member 1b the gas also passing to the annular chamber 1e through a plurality of openings 14 in the inner tube 6. A spring 12 is disposed between the cover 1b and the piston 9 which is provided with an undercut portion defining an annular chamber 10 communicating through a hole 11 with the liquid on the side 10a of the piston. The flexible inner tube is of rubber and is coated on one or both sides by a layer of plastics material. Alternatively the inner tube may be of polyethylene. An upper retaining ring 3b is secured between the cylindrical shell 1 and the cover member 1b and has secured thereto by a metal band 8 one end of the inner tube 6 the other end of which is secured in like manner to a lower retaining ring 3 secured between the cylinder 1 and the base 1a. The lower retaining ring 3 has a bore 3d for a slidably mounted valve member 13 having a hollow shaft provided with bores 13b through which liquid can pass from the opening 18 to the side 10a of the piston. The valve 13 is urged to the open position by a spring 19 and is closed by the downward movement of the piston causing the valve to abut an 'O'-ring 19a. A safety blowout fuse 15 is threaded into the cover 1b and includes a rupturable diaphragm 17. In another construction, Fig. 4 (not shown) the inner tube 38 is secured at its lower end to a cap 22 having an orifice 34 and at its upper end to a thin metal cap 42 having holes 48 and being secured at its centre to a top cap 21. The piston 50 comprises a metal bottom 52, a cylindrical portion 60 outwardly flanged at 62, a washer 64, and a U-shaped rubber-like wiper ring 66. A fitting 26 having a valve seat disposed deep down therein to prevent gas escaping in the event of external fracture is screwed into a bore 25 in the top cap 21. In two further constructions (not shown) different piston constructions are described. The axis of the accumulator may be curved instead of straight.