baber/WOPTO huggingface dataset:
Patent GB-780335-A (GB)
IPC: C10B57/18
Abstract: 780,335. Carbonizing coal. ESSO RESEARCH & ENGINEERING CO. Aug. 9, 1955 [Sept. 2, 1954], No. 25505/54. Class 55 (1). In a process for producing gases such as town gas by carbonizing coal the carbonized coal is contacted at substantially the highest attained temperature of the coal with a hydrocarbon distillate boiling between 0‹ and 325‹ F. introduced into the carbonization zone. The hydrocarbon distillate may be a light virgin naphtha and may be used in an amount of 100 to 500 lbs per ton of carbonized coal. The highest attained temperature of the carbonized coal may be between 1300‹ and 2000‹ F., and when the temperature is above 1550‹ F. the carbonized coal may first be contacted with a proportion of, e.g., 20-30 per cent, a higher boiling petroleum fraction, e.g. boiling between 700‹ and 1000‹ F.
Patent GB-2002450-A (GB)
Title: Exhaust gas cleaning apparatus for an internal combustion engine
IPC: F01N3/038
Filed: 1978-08-07
Abstract: In a cylinder 1 with an inlet pipe 4 for the exhaust gas and a throttle wall 8 having a number of holes 7, the area of each hole is between 2.5 and 24 mm<2>, the ratio of the total area of the holes to the cross-sectional area of the inlet pipe is between 0.8 and 5.5 and the thickness of the wall is between 0.8 and 6 mm. The gas expands on entry to the chamber 6 to provide liquid condensation and liquid and solids are collected in the filter material 10. <IMAGE>
Patent GB-2030194-A (GB)
Title: Dust suppression equipped mining machine
IPC: E21C35/22
Filed: 1978-09-27
Abstract: A ranging drum shearer mining machine is provided with dust extraction equipment 10 or 11 mounted adjacent to the cut mineral discharge from the cutter drum 2 or 3. The dust extraction equipment can be ranged to accommodate adjustment in cutter drum position. <IMAGE>
Patent GB-2011604-A (GB)
Title: Tubular heat exchanger
IPC: F28F1/32
Filed: 1978-11-23
Abstract: A heat exchanger comprises one or more rows of cylindrical heat exchange tubes (10) through which tubes flows the coolant liquid of a motor vehicle engine and over which flows a secondary heat exchange medium such as air, secondary heat exchange surfaces e.g. plate fins (12) being connected to the external surfaces of the tubes so as to conduct heat, and the tubes having an internal diameter of at most 6.7 mm. The tubes may be provided with inserts (e.g. twisted metal strips 28) serving to distribute the liquid flow in said tubes. <IMAGE>
Patent GB-2009912-A (GB)
Title: Supports for luminaires
IPC: F21V21/02
Filed: 1978-12-08
Abstract: A luminaire comprises a support 1 for attachment to a rigid surface (e.g. a ceiling), a lamp holder 21, a lamp housing 3, and an intermediate coupling member (2), between the support (1) and the housing (3), which is connected to both the support and the housing by snap-fitting connections (9 to 19) so arranged that the connection to the support cannot be released without first removing the housing. The connection between the support and the coupling member comprises resilient hooked fingers (12, 13) on the support which engage a cross-beam (9) within a bush (8) in the coupling member. The connection between the support member and housing comprises lugs (16, 17) on the housing which extend into the bush so as to trap the hooked fingers and which engage with ribs (18, 19) in the bush. The lamp holder (21) may be mounted on the coupling member. <IMAGE>
Patent GB-2037160-A (GB)
Title: Milk-derived products
IPC: A61K35/20
Filed: 1978-12-08
Abstract: A lyophilised milk-derived product is described which is produced from skimmed milk by effecting protein hydrolysis thereof, the skimmed milk having been subjected to yoghurt-producing conditions. The product obtained is rich in amino acids as well as constituents of yoghurt and metabolites of bacterial strains used in production of the yoghurt and is a suitable moisturising ingredient for inclusion in creams for cosmetic and pharmaceutical use.
Patent GB-2018096-A (GB)
Title: Electric immersion heater
IPC: H05B3/80
Filed: 1978-12-12
Abstract: A planar electric immersion heater comprises a planar frame (41) wound with spaced turns of an insulated wire element (42) and at least one cover plate (44) spaced from and parallel to the frame 41 to provide a convective flow passage over the element. A metal e.g. platinum, earth wire 43 is provided in the frame 41 to act as a leakage sensor. The frame 41 is either open in the middle or engages each turn of the element only with its edges so that liquid has free access to the element. <IMAGE>
Patent GB-2009422-A (GB)
Title: Improvements relating to leak testing apparatus
IPC: G01M3/10
Filed: 1978-12-18
Abstract: Apparatus for testing for leaky aerosol containers comprises a ferris- type wheel (20, 21, 22) whereof the carriers are baskets (23) to be loaded with the aerosol containers at an access mouth (A) of an enclosing casing (10) which has a heated water bath at its bottom, and manual means (24-27) allowing intermittent rotation of the wheel to cause the baskets (23) to move in stages from the loading station down to and through the bath and then upwards for unloading also at the access mouth. The casing and baskets assist to protect the operator from debris of exploding containers. <IMAGE>
Patent GB-2013231-A (GB)
Title: Process for the Preparation of 1:2 Cr Complex Dyestuffs
IPC: C09B45/01
Filed: 1979-01-08
Abstract: 1:2 Cr metal complex dyestuffs free from sulphonic acid groups and containing at least one molecule of a dyestuff of the general formula   <IMAGE>  wherein K and A have the meaning indicated in the description, are prepared by reacting the free dyestuff carboxylic acid with stoichiometric amounts of chromium-6 compounds at 80-105 DEG C in an aqueous medium in the presence of trialkanolamines and in the presence of reducing agents.
Patent GB-2016517-A (GB)
Title: >Petroleum fuel composition containing an anti-haze additive
IPC: C10L1/188
Filed: 1979-03-13
Abstract: A petroleum fuel composition having improved haze properties is described. The fuel composition contains an anti-haze additive comprising an hydroxylated resin acid and/or a metal resinate, in which the metal is from Groups II to IV, VII and VIII. Hydroxylated abietic acid is the preferred acid. Zinc resinate, or a mixture thereof with calcium resinate, is preferred. Normally from 2 to 15 ppm by weight of fuel is employed. The invention is especially suitable for use with gasoline.
Patent GB-2053404-A (GB)
Title: Machinery guards
IPC: D03D49/58
Filed: 1979-07-05
Abstract: A guard fore machine, such as a loom, which could eject an unrestrained part such as a shuttle, includes at least two movable elements OFG, IFG to cover an aperture, the outer element OFG being movable against a bias OS by hand pressure, and an inner element IFG being released by an interlock IC, IA with the outer element OFG on sufficient movement of OFG. The interlock prevents the outer element returning until the inner element is returned, e.g. by bias IS. The guard may be arranged as shuttle containment guard for a temple area TE of a loom and adjustably mounted (MP, FGF) on the sley cap SC to permit safe access to the reed RE while at all times ensuring that a shuttle deflected from raceboard RB is directed into a shuttle box SB. The movable guard can extend a fixed guard of similar bar form (OG', IG'). <IMAGE>
Patent GB-2054720-A (GB)
Title: A fastener for attachment to a web
IPC: A44B99/00
Filed: 1979-07-23
Abstract: Fasteners for attaching to a web of flexible material, include a female element 16 in the form of a ring having a central opening defined by a generally axially extending surface 27 and a flat outturned rim surface 25. A male element 14 has a plug portion 18 which is of complementary shape to that of the opening of the female element and an outturned rim 20 extending around the plug, with a flat surface 23 adapted to lie against the outturned surface 25 of the female element. The male element can be inserted through the opening in the female element, when the latter has been placed on the fabric 30, and can be passed through the female element and turned around so that the fabric is clamped between the outturned rims 23, 25 on the plug and on the female element. The aperture of the female element can be oval or formed with two parallel sides joined by arcuate ones with the male element shaped complementarily. <IMAGE>
Patent GB-2061311-A (GB)
Title: Liquid crystal mixture
IPC: C09K19/44
Filed: 1979-10-02
Abstract: A liquid crystal mixture suitable for a multiplexed twisted nematic effect device comprises a nematic liquid crystal material having a high positive dielectric anisotropy and including at least one 4-n-alkyl- or 4- n-alkoxy-4-cyanobiphenyl together with at least one laterally substituted benzoate ester compound having a structure formula:   <IMAGE> where X1 and X2 are H or F, at least one being F, and wherein each of R1 and R2 is either an n-alkyl or n-alkoxy group.
Patent GB-2040616-A (GB)
Title: Improvements in and Relating to Electrical Circuit Arrangements
IPC: H03G3/20
Filed: 1980-01-14
Abstract: An A.G.C. circuit has first and second modulators 6, 8, and a control signal is applied to the modulator 6 through an impedance path C2, R4 having an impedance which decreases with increasing frequency, and is applied to the modulator 8 through an impedance path R5, C3 having an impedance which increases with increasing frequency. The modulators 6, 8 are connected in series to modulate the input signal and an amplifier 14 amplifies the output of the second modulator 8 and applies it to an output terminal 36. A detector 18 detects the output of the amplifier 14 and an integrator 28 compares the detected level with a reference so as to produce the control signal dependent on the error. In this way, modulator 6 performs modulation primarily dependent on the A.C. component of the control signal and modulator 8 performs modulation primarily dependent on its D.C. component of the control signal. Therefore, changes in the gain of the amplifier 14, or in the level of the input signal, which tend to alter the upper limit of the loop bandwidth of the circuit are substantially offset by the effect of the resultant change in the gain of the modulator 8.   <IMAGE>
Patent GB-2050350-A (GB)
Title: Cyano-alkene compounds
IPC: A61Q13/00
Filed: 1980-03-20
Abstract: Compounds of the formula:  <IMAGE>  wherein n and m are integers having a value of 1 or 2 and n+m=3 and the dashed line indicates two alternative positions of a unit of unsaturation are novel. They possess attractive spicy odors and are useful as ingredients of compounded perfumery compositions. They are readily prepared by the reaction of methyl iso-amyl ketone and cyano-acetic acid.
Patent GB-2079867-A (GB)
Title: Plain bearing
IPC: F16C33/20
Filed: 1980-07-15
Abstract: A plain bearing comprises a metal backing and a lining of polyetheretherketone, a thermoplastics containing the repeating unit:   <IMAGE> The backing may be of aluminium or steel with an aluminium foil interlayer. The lining may be applied as a powder, a sheet or as a solution and is heated to between 160 DEG C and 180 DEG C and allowed to cool slowly, without curing, to achieve 40% crystallinity. The lining can comprise a bearing layer or an overlay.
Patent GB-2070516-A (GB)
Title: Composites of water hardening substance and organic film networks
IPC: C04B16/06
Filed: 1980-11-05
Abstract: A method for producing a composite of a water hardening substance and a fibrillated organic film network having its primary strength in one direction. A plurality of layers of expanded fibrillated organic film network are incorporated in a water hardening substance such that the primary strength directions of the layers are aligned to form at least one mass of green material. The or each mass is then formed into a structure in which the primary strength direction of the layers of expanded organic network extend in at least two directions.   This structure may be a laminar structure formed by superimposing sheets of green material, or a helically folded structure.
Patent GB-2061060-A (GB)
Title: Masking arrangement for color printing
IPC: G03F3/08
Filed: 1979-01-18
Abstract: Pairs of signals of Y and M, Y and C, and C and M are formed by combining two members out of Y, M and C image signals. The minimum and maximum selected signals from the combinations are generated along with minimum and maximum selected signals from the three Y, M and C image signals. The signals of cyan, magenta and yellow colors are detected and generated by subtracting the minimum selected signals of the combined signals from the minimum selected signal of three Y, M and C signals. The signals of red, green and blue colors are detected and generated by subtracting the maximum selected signals of the combined signals from the maximum selected signal of three Y, M and C signals. The hues, saturations and brightnesses of the six color signals are controlled and the six color controlled signals are added to the Y, M and C image signals.
Patent GB-2064632-A (GB)
Title: Convertible Extension/Step Ladder
IPC: E06C1/32
Filed: 1980-12-02
Abstract: A convertible step ladder comprises two ladder members 1, 2 made of metal stiles and treads, a metal convertible platform/tread 4 on one of the ladder members, two hand holds 6 at the top of the said one ladder member and two hinges secured to one ladder member and being in slidable engagement with the stiles of the other ladder member. Such a convertible step ladder can be used as a pair of steps or as an extension ladder, a storage position also being available in which the two ladder members are parallel but not extended. <IMAGE>
Patent GB-2067843-A (GB)
Title: Quasi-optical frequency diplexer
IPC: H01P1/20
Filed: 1980-12-22
Abstract: The present invention relates to a quasi-optical frequency diplexer capable of operating over a wide angle of scan and separating microwave signals possessing proximate center frequencies. The present invention, which in one aspect may be employed with a phased array antenna arrangement functioning so as to separate the transmit and receive frequencies associated therewith, consists of an array of waveguide sections (22) where the input and output ports (30, 32) of the array are tilted with respect to the array's longitudinal axis. The angles of tilt and the dimensions of the waveguide sections may be adjusted so as to achieve frequency diplexing with a minimal amount of interference between the diplexed signals.
Patent GB-2072601-A (GB)
Title: Helicopter rotor thrust ring
IPC: B64C27/20
Filed: 1981-02-25
Abstract: A structure and a method for enhancing the performance of a helicopter rotor includes an aerofoil ring coaxial with the rotor. The invention may be applied to either a tail rotor or a main rotor. A helicopter tail rotor (140 (Figure 16) is provided with a thrust ring comprising an annular airfoil (146) having a circular opening aligned coaxially with the rotor. The plane of the airfoil is parallel to the plane of the rotor but slightly offset downstream therefrom. The cross section of the airfoil can have a wide variety of configurations. The main rotor (138) has a similar ring (142). Tip vortices produced by the rotor are captured near the downstream surface of the airfoil to produce a circulating airflow that educts air from the upstream region of the airfoil through the opening therein. The aerodynamic action of the airfoil widens the wake diameter of the wash from rotor, increases the rotor thrust efficiency, reduces rotor noise level, enhances transverse stability and lowers the vibration level experienced by helicopter. The airfoil further serves as a guard to protect the rotor. Figure 14 shows a helicopter with a main rotor 116 and thrust ring 118 below the fuselage. <IMAGE>
Patent GB-2079968-A (GB)
Title: Colour compensation by reflection-preventive films in optical system
IPC: G02B5/28
Filed: 1981-06-22
Abstract: An optical system for a reproduction apparatus capable of preventing reflection from surfaces of constituent lenses by providing only narrow range reflection-preventive films on a plurality of lens surfaces, and making use of synergistic effect of the reflection-prevention of these films in a predetermined wavelength region at each lens surface, whereby a spectral transmission characteristic which compensates color-sensitivity such as a spectral sensitivity characteristic of a photosensitive member, a spectral wavelength characteristic of a light source, etc., in the reproduction apparatus can be obtained.
Patent GB-2079000-A (GB)
Title: Two-stage interferometer
IPC: G01B9/02
Filed: 1981-06-26
Abstract: A two-stage inteferometer includes a laser light source (1) and a beam splitter (2) having a partially metallised surface (3) which acts as an interference plane for producing two separate light beams (4 and 5). A measuring reflector (6) and a reference reflector (7) are disposed in the paths of the beams (4 and 5), respectively. The beam splitter (2) has on each side of the surface (3) a further beam-splitting, partially metallised surface (8,9), the latter surfaces lying symmetrically of the interference plane (3). A deflecting element, which can comprise a one- part element (13) or multiple elements (11, 12-see Fig. 2 not shown), is disposed at the end of the beam splitter (2) facing the measuring and reference reflectors (6,7). The deflecting element has optically effective reflective surfaces (14, 15) which align the light beams (4,5) so that the latter are mutually parallel, and has a beam exit surface (16) extending at 90 DEG  to the interference plane (3). <IMAGE>
Patent GB-2083821-A (GB)
Title: Cellulose derivatives capable of forming inclusion complexes
IPC: C08B15/00
Filed: 1981-08-04
Abstract: The invention provides a cellulose derivative containing structural units of the general formula (I),   <IMAGE>  wherein Cell is a group derived by removing m hydroxy groups from a glucose unit of the cellulose chain,  m is an integer of 1 to 3, CD is a group derived by removing one hydroxy group from the  alpha ,  beta  or  gamma -cyclodextrine molecule, n is an integer of 1 to 5, and p is 0 or 1, and may have different values within a single chain. The derivatives can be made by coupling cellulose and a cyclodextrine with the appropriate epoxy compound under basic conditions. The derivatives have utility as adsorbents e.g. for chromatography, purification of waste waters or gases, recovery of solvents, or as molecular sieves.
Patent GB-2109834-A (GB)
Title: Lining system
Inventor: CROUCH JOHN ALERIC
IPC: E04B9/18
Filed: 1981-09-15
Abstract: The rails of e.g. a suspended ceiling grid are of I-section with the lower flange 6 wider than the upper flange 5 and are suspended by means of hangers 4 which have a bifurcated end with a transverse slot 13 which snaps over the upper flange. Holes 8 in the rails' web 7 serve both to retain the ends of cross-members of ceiling grid and to hold spring wedges 14 to clamp panels 15 against lower flange 6. <IMAGE>
Patent GB-2104937-A (GB)
Title: Method and means for fishing a sucker rod string which includes a separated fiberglass sucker rod
Inventor: RUTLEDGE RUSSEL PAUL
IPC: E21B31/12
Filed: 1981-11-23
Abstract: Methods and means are provided for fishing a sucker rod string which includes a separated fiberglass sucker rod 86 having numerous fiberglass strands 90 that are difficult to bundle or group and cause difficulty fishing out the separated string. A generally tubular fishing tool 100 has a side opening 19 extending through the lowermost end. Such side opening 19 has a longitudinally disposed first surface 12 and a helically disposed second surface 14, both of which are tapered so as to guide the fiberglass strands inwardly into the bore of the fishing tool 100 as it is simultaneously rotated and lowered. The fishing tool has means 40 to grip the sucker rod string within its bore above the side opening. As the fishing tool is lowered down and around the separated end of the sucker rod, the fishing tool is rotated to bundle the numerous loose fiberglass strands 90 inwardly into the fishing tool bore by action of the tapered surfaces 12 14 of the side opening so that the bundled fiberglass strands do not ball up or plug the bore of the fishing tool. The fishing tool is then lowered to grip the sucker rod string and then lifted from the well bore together with the sucker string. <IMAGE>
Patent GB-2092183-A (GB)
Title: Method of controlling furnace atmospheres
IPC: C23C8/22
Filed: 1982-01-12
Abstract: Carrier gas composed essentially of a mixture of a suitable hydrocarbon such as methanol and nitrogen is supplied to a furnace for adjusting the carbon content of steel or cast iron, and the carbon potential of the furnace atmosphere is controlled by varying the amounts of additive gases. In accordance with the present invention, the ratio of flow of hydrocarbon gas to flow of nitrogen is varied to maintain the CO percentage of the furnace atmosphere at a predetermined value. This renders more effective the independent control by convertional means of the flow of additive gases to maintain the carbon potential of the furnace atmosphere at a predetermined value.
Patent GB-2095010-A (GB)
Title: Calculator
IPC: G06G1/00
Filed: 1982-03-05
Abstract: The invention provides a mechanical calculator for determining the corrections necessary to bring the drive shafts of a pair of machine elements into alignment, following measurement of their mis-alignment by the "reverse clock gauge method". Provision may be made in the calculator for automatic corrections to be made in respect of "gauge sag" and/or "thermal growth". <IMAGE>
Patent GB-2116041-A (GB)
Title: Irrigation apparatus colostomy
Inventor: HSUEH-SHUN HU
IPC: A61F5/442
Filed: 1982-03-06
Abstract: A colostomy irrigation apparatus comprises a catheter 8 secured via a spring-loaded flanged tube 7, which is placed in the stoma, and a cap 5 to valve 4 which is connected via a tube to a second valve, the second valve, in one position being in communication with a source of irrigating liquid and, in another position, being in communication with a source of water. When the second valve is the one position, irrigation liquid is passed through valve 4 to the patient. When the second valve is in its other position, water is passed through valve 4 to a container, the water causing suction in the catheter whereby excrement is sucked from the patient through the catheter and valve 4 to the container. <IMAGE>
Patent GB-2098433-A (GB)
Title: Message production arrangement
IPC: H04M1/65
Filed: 1982-03-10
Abstract: A message production arrangement, in particular for a telephone installation, with which a keyboard 1 intended for other purposes also is connected to a synthesiser 3 and speech modules 4, 5. Speech messages contained in the arrangement 3, 4, 5 are completed by means of the keyboard 1 by a computer 6 to make information to be sent. A magnetic tape device 9 controlled by a computer 8 can be switched-on to receive information from a distant caller. <IMAGE>
Patent GB-2097082-A (GB)
Title: Improvements in or relating to valves
IPC: F16L37/38
Filed: 1982-04-21
Abstract: A valve for use in selectively filling a charge of liquid or gas into a pressure vessel and releasing a stream of gas from the vessel comprises: a housing (1) that defines a pathway for the liquid or the gas, and also defines an outer valve seating (103); a first valve body (5) biased into engagement with the outer valve seating to close the pathway; a first actuator member (108) adapted to disengage the first valve body to open the pathway; parts defining a channel (104) through the first valve body to define a by-pass continuous with said pathway, the channel having an associated inner valve seating, a second valve body 4 biased into engagement with the inner valve seating to close the by-pass; and a second actuator member (4a) adapted to disengage the second valve body to open the by-pass. <IMAGE>