baber/WOPTO huggingface dataset:
Patent GB-1379620-A (GB)
Title: Wideband cirection filter device
IPC: H01P1/213
Filed: 1972-12-20
Abstract: 1379620 Cavity resonator filters NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP and HITACHI ELECTRONICS CO Ltd 20 Dec 1972 [24 Dec1971] 58923/72 Heading H1W A filter for removing selected components from a composite signal travelling along a semicircular waveguide 34 comprises two coplanar ring-shaped cavity resonators 35 and 36 which are divided into two portions coupled by holes 37, 38 spaced a quarter wavelength apart and the circumferences of the cavities are respectively integral multiples of the wavelength of two components f 1 , f 2  of the composite signal. The cavities are directionally coupled to waveguide 34 by slits 45, 46 and to two rectangular waveguides 40, 41 by slits 42, 43, the components f 1  and f 2  being taken as outputs from the rectangular waveguides. Similar filters can be disposed along the semi-circular waveguide 34 to remove other pairs of components therefrom. In Fig. 7 (not shown) the rectangular guides are disposed along the outer limbs of the ring shaped cavities. In Fig. 8 (not shown) the coupling slits are replaced by coupling guides (451, 461, 421, 431) which are arranged in a similar manner to the slits but are through a plate a quarter wavelength thick. In addition to coupling slits, further slits for impedance matching can be provided.
Patent GB-1335980-A (GB)
Title: High-speed colour correcting scanner for making colour printing plates
IPC: G03F3/08
Filed: 1970-12-21
Abstract: 1335980 Facsimile apparatus XEROX CORP 21 Dec 1970 [23 Dec 1969] 60520/70 Heading H4F Relates to a facsimile colour printer employing a light-sensitive transform computer as described in Specification 1,335,222, in which two beam splitters are used to split the light from the scanned original into three beams which are photo-electrically detected via red, green and blue filters. The beam splitters may be colour selective. By using a mandrel having a different diameter portion for the original than for the three colour ink printing plates, copies of different sizes may be produced.
Patent GB-1327950-A (GB)
Title: 21-mercapto-steroids of the pregnane series and a process for their manufacture
IPC: C07J31/00
Filed: 1970-12-22
Abstract: 1327950 21-Mercapto and -acylthio steroids CIBA-GEIGY AG 22 Dec 1970 [24 Dec 1969] 60827/70 Heading C2U Novel steroids of the formula (wherein the #<SP>1</SP>- and #<SP>6</SP>-double bonds are optional; R 1  is H or carboxylic acyl; R 2  is H, OH or O acyl; R 3  is α- or #-CH 3  or α-OH or -O acyl or R 2  + R 3  is alkylidene- or cycloalkylidene-dioxy; R 4  is Cl, OH or O acyl; R 5  is H, or, with R 4 , is oxo; R 6  is H, Cl or F or R 4  + R 6  is a #<SP>9(11)</SP> - double bond or a 9#,11# - epoxy group; and R 7  is H or, in #<SP>1</SP> compounds, Cl) are prepared from corresponding 21-Y steroids wherein Y is a reactively esterified hydroxyl group and reagents M-S-R 8 , wherein R 8  is acyl and M is H or a monovalent metal atom, followed, when required, by hydrolysis of the 21-acylthio steroid thus-formed to the corresponding 21-mercapto steroid. This lastnamed product may subsequently be re-acylated. Known reactions may also be effected at other sites in the molecule, e.g. an acyloxy group or a  cyclic ketal group may be hydrolysed, #<SP>1</SP>- and/or #<SP>6</SP>-double bond may be introduced, and an 11#-ol may be dehydrated to a #<SP>9(11)</SP>-compound, this may then be converted to a 9,11#- epoxy compound and this to a 9α-fluoro-11#-ol. Also, chlorine may be added at the 9,11- or 2-position.  6α,9α - Difluoro - 16α - methyl - 11#,17α,21- trihydroxy - pregna - 1,4 - diene - 3,20 - dione 21-mesylate is prepared from the free 21-ol and mesyl chloride. 6α,9α-Difluoro-11#,16α,17α,21- tetrahydroxypregna - 1,4 - diene - 3,20 - dione- 16,17 - acetonide 21-mesylate and 6α - fluoro- 16α - methyl - 11#,21 - dihydroxypregna - 1,4- diene - 3,20 - dione 21 - mesylate are prepared similarly. Anti-inflammatory compositions for oral, parenteral and topical administration comprise a compound of Formula I and a carrier.
Patent GB-1287500-A (GB)
Title: Cyanoethyl derivatives of galactomannan gum
Inventor: NORDGREN ROBERT
IPC: C08B37/14
Filed: 1970-12-22
Abstract: 1287500 Cyanoethylated galactomannan gums GENERAL MILLS Inc 22 Dec 1970 [23 Dec 1969] 60885/70 Heading C3U A cyanoethyl ether of a galactomannan gum (e.g. guar, locust bean gum) having a degree of substitution greater than 1À9 comprises (a) heating an alkaline aqueous solution of galactomannan gum with acrylonitrile or a lower alkyl substituted acrylonitrile wherein the minimum amount of water present 's 100 parts of water per 200 parts of gum and the acrylonitrile being present in the amount of 2-5 parts per part of gum, and heating until mixture becomes very viscous, (b) thinning the mixture by adding enough water to precipitate same product and then (c) heating until the mixture again becomes very viscous, then (d) repeating steps (b) and (c) until there is no substantial increase in viscosity, (e) heating the mixture to ensure completion of the reaction, neutralizing the resultant mixture and then removing any excess acrylonitrile or lower alkyl substituted acrylonitrile and (f) recovering the ether of the galactomannan gum as a precipitate.
Patent GB-669471-A (GB)
Abstract: 669,471. Automatic steering control systems. SMITH & SONS (ENGLAND) Ltd., S. Aug. 4, 1948 [Aug. 5, 1947], No. 21311/47. Class 38 (iv). In an automatic control system a clutch is interposed between the deviation detector and the signal generator so that a relative displacement may be effected between the detector and generator to counteract a zero error in the system. As shown, Fig. 1, the system described in Specification 617,240 is modified to permit of manual adjustments, to compensate for zero electrical errors in the rudder control system. The rudder 2 is positioned by motor 19, energized from amplifier 21, the input to which includes signals from generator 22, driven by motor 19, rate of turn gyro 1, potentiometer 109 and the slip detecting pendulum 25. During straight flight no signals emanate from 1, 22, 25 or 109, but should 1, 22 or 25 have a zero error, and the craft consequently caused to deviate from course, a balancing signal is obtainable from 109 by means of the clutch 102, 103 and differential gear 104. through which the direction gyro 3 positions the tapping 108 of potentiometer 109. The automatic control system is de-energized, the clutch 102, 103 is opened, the craft manually set back on course, and the clutch re-set, whereon the signal from potentiometer 107, which balances the error signal, maintains the craft on the adjusted heading. Alternatively the knob 106, of the differential gear 104 is turned until the arm 108 is positioned to develop a signal equal and opposite to the error voltage. During banked turns, effected by rotating of the gimbal 13 in roll, the relay 31 and solenoid 105 are energized to open both the clutch 102, 103 and the contacts 33 in parallel with the side slip detector 25. Specifications 576,248, 576,249, 576,351, 586,506, 611,005, [both in Group XXXVIII], also are referred to.
Patent GB-753006-A (GB)
Abstract: 753,006. Calculating-apparatus. BRUNSVIGA MASCHINENWERKE AKT. - GES. Dec. 20, 1954 [Jan. 14, 1954], No. 36825/54. Class 106 (1). In a full keyboard machine provided with a column release key 13 for each column of amount keys 14, 15, and 16, all the release keys 13 being depressed automatically by a rocker 22 to clear the keyboard at the conclusion of an operation, each release key has a third position, as shown a raised position, in which it is not actuated by the rocker 22. By this means, columns whose release keys 13 have been set in this third position are not cleared with the rest of the keyboard and valves entered in these columns are repeated in succeeding machine operations. In the mechanism shown, studs 19 on the amount keys coact with the usual flexible detent slide 17. The stud 19 on a' release key 13 is set lower than those of the amount keys and coacts with a bevel 9 on the slide 17 upon depression of the key to cam the slide forwardly to release any depressed amount key. The rocker 22 does this by engagement with the hooked shank 23 of each release key. A spring 20 urges each release key upwardly and a projection 21 engages the underside of the key plate 11 to limit outward movement. By rocking the key forwardly, the projection 21 clears the key slot in the plate 11 and the key moves outwardly into its third or raised position. In this position, the hooked extremity 23 of the key is clear of the rocker 22, and its stud 19 engages a hook 7 in the detent slide 17 to lock it.
Patent GB-777075-A (GB)
Abstract: 777,075. Pneumatic tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. Jan. 19, 1955 [May 5, 1954; Dec. 4, 1954], No. 1658/55. Class 144 (2). A pneumatic tyre has a carcass of at least two sheets of parallel wires disposed with the wires in planes making an angle with the radial planes containing the tyre axis, and the wires in one sheet crossing those in the other sheet, and at least one extra sheet of parallel wires, between the carcase and the tread, disposed with the wires lying in said radial planes, or at a small angle thereto not exceeding 20 degrees. The carcass sheets may be disposed with the wires thereof inclined at an angle of from 25 to 45 degrees to the radial planes. Where a plurality of extra sheets is employed they are arranged in pairs with the wires of the sheets of each pair either parallel to, or equally and oppositely inclined at an angle not exceeding 10 degrees to, the radial planes. The term " wires " includes wires, threads or cables of metal, or other material of comparably low extensibility. The extra sheets may extend across the width of tread, or the whole width of the carcass. Specifications 628,060 and 698,915 are referred to.
Patent GB-2023780-A (GB)
Title: Water tube boilers
IPC: F24H1/40
Filed: 1978-06-22
Abstract: A boiler for use primarily for hot water floor heating of small buildings, comprises a fire chamber 1 defined at least in part by membrane walls, that is to say walls incorporating water-conducting tubes 6. The boiler is characterized in that the membrane walls (particularly the side walls 4,5 of the fire chamber) are at least in part arranged with their water conducting tubes extending transverse to the flow direction of the exhaust gas, in the fire chamber, while supply 15 and return 14 manifolds for the water tubes of these walls are disposed in a spaced relationship at different heights and extend substantially parallel to the flow direction of the exhaust gas, the return manifold being at the lower height. <IMAGE>
Patent GB-2009108-A (GB)
Title: Method and Apparatus for the Transfer of a Moving Web to a Take-up Roller
IPC: B65H19/22
Filed: 1978-10-11
Abstract: In a method and apparatus for transferring a forwardly travelling web of one or more layers to a take-up roller with minimal delay and wastage a rotating take-up roller 23 is provided adjacent the web 1, such that flaps 27 may divert a loop of web around the roller 23 in its direction of rotation. The movement of the loop around the roller 23 may be guided by air blast issuing from channels 28 and confined by a hood 32, or otherwise. The flaps 27 applies the web 1 against a stop 38 which restrains the web and causes it to be cut by an edge 58. The loop is guided round the roller 23 until it is pinched between the roller and a subsequent web portion, and the leading web portion is thus attached to the roller, and the web thereafter wound onto it. Once the web portion has been attached, the roller may be transferred to a take-up station 19. <IMAGE>
Patent GB-2005972-A (GB)
Title: Method of and system for underground irrigation
IPC: A01G25/06
Filed: 1978-10-19
Abstract: Underground irrigation is carried out using at least one hollow, water-permeable duct (1) having capillary pores and being embedded in the soil and connected to a supply (4) of water. Ducts (1) may alternate with impermeable ducts (3) and may each enclose an impermeable duct whose interior is connected to the space between it and the respective enclosing permeable duct. The design may compensate for water pressure drop through the system. A single perforate duct and enclosing permeable duct may be used. <IMAGE>
Patent GB-2009749-A (GB)
Title: Indolo (2,3-a) Quinolizidines, Preparation and Therapeutic Use
IPC: C07D471/22
Filed: 1978-11-27
Abstract: Indolo (2,3-a) quinolizidines of the formula I and II   <IMAGE>  in which R=-COOC2H5, -COOH, -CN, aminomethyl, amido or amidomethyl or in which R and the indolo ring nitrogen together provide -N-CO- NH-CH2- or -N-CO-. Also acid addition salts and a process for their preparation starting from 2-aminoethyl-3-indole and 1- chloro-4-(ethoxycarbonyl or cyano)-4- chlorocarbonyl-hexane. The products are useful in the field of cerebral irrigation.
Patent GB-2012053-A (GB)
Title: Calibrating fluid pressure transducer
IPC: G01L27/00
Filed: 1978-12-01
Abstract: The transducer 3 is immersed in a low-compressibility oil 2 filling a sealed container 1 having a wall 4 formed as an electrically conducting diaphragm. Diaphragm 4 forms part of the single- turn secondary winding of a transformer whose primary winding 5 is energised from a charged capacitor 6. The current flowing in diaphragm 4 interacts with its associated magnetic field to deflect the diaphragm, causing a pressure change in the oil. The pressure change is proportional to the square of the magnetic field strength at the side of the diaphragm remote from the oil, where the magnetic field is contained by the diaphragm. This field, i.e. the field between the two windings, is measured by a pick-up coil 8, whose output is processed to produce a signal, proportional to the pressure change in the oil, which is compared at 10 with the output from the transducer 3. <IMAGE>
Patent GB-2012024-A (GB)
Title: Valves
IPC: F16K5/04
Filed: 1978-12-07
Abstract: A stopcock valve body 10 is formed of a plastics material, and has arm portions 24, 26 in which glass side arms 36 are received, said arm portions 24, 26 being pinched into fluid tight engagement with the glass side arms 36 be means of nuts 38 having tapering screw-threads. <IMAGE>
Patent GB-2015062-A (GB)
Title: Underwater Structures
IPC: E21B33/037
Filed: 1979-04-11
Abstract: An underwater protective or energy-absorbing structure, stationary or moving, is constructed to be deformable and resilient as a whole, or at least over a substantial part of its extent. The structure preferably encloses a substantially incompressible fluid, either trapped or provided with only a limited outlet, or the structure may be double-skimmed with a fluid trapped in the skin. Sheet plastics are the preferred materials. Such a structure, on impact, undergoes progessive deformation, the impact energy being absorbed and distributed by the trapped fluid, after which the structure returns resiliently to its normal shape. Impact loads are therefore much less than in the case of a rigid structure. Conveniently, the structure is a frusto-conical shell 3 of sheet plastics material with its top open, or closed by a cap 5 and its lower edge secured to the sea bed 2 for example to enclose an oil well head 1. <IMAGE>
Patent GB-2019014-A (GB)
Title: Testing apparatus for testing printed circuit boards
IPC: G06F11/22
Filed: 1979-04-12
Abstract: Portable tester and method for testing a variety of circuit boards without utilizing adaptor boards for re-routing input test signals and supply voltage from the tester to pins of the board under test. A plurality of edge adaptors having different pin spacings have their respective pins connected in parallel to corresponding edge connector stake pins. Each edge connector stake pin is connected to or isolated from the corresponding driver/sensor stake pin by means of a switch. Each driver/sensor stake pin is connected to the input/output terminal of a programmable driver/sensor circuit. A plurality of power supply stake pins are connected to various power supplies of the portable tester. Connectors coupled to the family board can be utilized to route power supply voltages to electrically isolated edge connector stake pins. Isolated driver/sensor outputs can be routed to other edge connector stake pins. A main processor stores a test program and transmits data and control information to predetermined driver/sensor circuits. A high speed processor is coupled between the main processor and the inputs of the driver/sensor circuits. The high speed processor memory can store a bus-defining subroutine containing a sequence of data shifting instructions which shift a word in the shift register to the input of specified driver/sensor circuits at high speed. The high speed processor can synchronize the operation of the portable tester with an asynchronously operating printed circuit board under test.
Patent GB-2047277-A (GB)
Title: Clothes washing machine incorporating a drying device
IPC: D06F25/00
Filed: 1979-07-06
Abstract: A washing machine incorporates a clothes dryer comprising a fan (13) which draws the air from within the casing (1) of the machine, directs it through a group of electrical resistance heating elements (11) from where the heated air passes into the interior of a rotary clothes-receiving drum (3) through arcuate flanged openings (7) therein arranged in concentric circles, and the air is then expelled to the exterior, preferably through an opening (21) in the front face of the machine frame, the wet air passing through a condenser (19) in which almost all the drawn-off water vapour is separated out and sent in its liquid state to the drain circuit (17, 24, 26) of the machine. Cylindrical projections (8, 9) direct the air from the space (10) in which it is heated into the drum (3). <IMAGE>
Patent GB-2029804-A (GB)
Title: Unwinding and Feeding Webs
IPC: B65H16/02
Filed: 1979-08-10
Abstract: Apparatus for unwinding rolls 35 of fabric (11) without stretching includes a movable support surface (an endless belt) (12) for supporting the roll, the support surface being movable in a given direction and frictionally gripping the fabric, and restraining means (rollers) (30) co- operating with the roll (35) to maintain it in a fixed location during movement of the support surface. <IMAGE>
Patent GB-2027452-A (GB)
Title: Removing metals from solutions electrolytically
IPC: C25C1/00
Filed: 1979-08-13
Abstract: A method of recovering an electrodepositable metal from a solution containing ions of the metal which includes the steps of locating an anode and an electrically conducting member in the solution, connecting the member as a cathode relative to the anode and passing an electrical current therebetween to electroplate the metal onto the member from the solution, removing the member having the electroplated layer of metal thereon from the solution, inserting the member into an electrorefining cell, connecting the member as an anode relative to a cathode, and passing an electrical current therebetween to remove the metal from the member and to deposit the metal onto the cathode. The member may be formed of expanded titanium. <IMAGE>
Patent GB-2028516-A (GB)
Title: Apparatus for converting a rotary viscometer for determining elastic properties of a viscoelastic substance
IPC: G01N11/10
Filed: 1979-08-15
Abstract: In a rotary viscometer, the viscosity of a viscoelastic substance in a measuring beaker (20) is determined from the reaction torque acting on a bob (25), held lowered in the beaker, while the beaker is rotated at a constant speed by the frictional coupling between that beaker and a drivable shaft (15), in a recess (16) of which the beaker is mounted. By means of a drive converting mechanism (50) the viscometer can be adapted for determining the elastic properties of the viscoelastic substance by operatively connecting a connecting rod (70) of the drive converting mechanism to the measuring beaker (20), the mechanism (50) converting the continuous rotary drive of the shaft (15) into to-and-fro angular rotation of the beaker (20) within the recess (16). The required elasticity measurement can be derived from the difference in phase angle between the instantaneous angular position of the beaker and the instantaneous reaction torque acting on the bob (25). <IMAGE>
Patent GB-2032428-A (GB)
Title: Bimetallic soaps and processes therefor
IPC: C07C67/00
Filed: 1979-09-11
Abstract: Uniformly coformed soaps of calcium and zinc at zinc/calcium atomic ratios of 2/3 to 3/1 are provided having unexpectedly low melting points and outstanding lubricant and anti-stick properties. A method of preparing same is disclosed based upon the simultaneous reaction of calcium and zinc in intimate association, following intensive dispersion in a liquid mass, with available fatty acid groups, the liquid mass being maintained at a suitable reaction temperature so as to form a finely divided pulverulent mixed metal soap of the uniform composition desired.
Patent GB-2038346-A (GB)
Title: Inhibition coating for propellant charges
IPC: F02K9/34
Filed: 1979-12-05
Abstract: This invention provides a polyurethane coating for propellant charges wherein the average molecular weight between cross-linked units in the polyurethane is 200-600 and the carbon to oxygen ratio is less than 4. The product combines smokeless combustion, resistance to degradation by nitroglycerine and transparency, which may be prepared at ambient temperatures and applied to a propellant charge by casting, brushing or spraying. Such a polyurethane is prepared by the reaction of an aliphatic polyether polyol component with an aliphatic polyisocyanate component. Suitable polyols have a functionality of 4-8, a molecular weight of 400-1000, and a C to O ratio not exceeding 3, for example a polyoxy propylene glycol adduct of sorbitol, used alone or mixed with polyether triols or diols. Suitable polyisocyanates comprise aliphatic di- or tri- isocyanates with C to O ratios of less than 5, such as hexa methylene di- or tri- isocyanate. The properties of the polyurethane may be modified by the addition of chain extenders and cross-linkers, and fillers.
Patent GB-2061723-A (GB)
Title: Suppressing fires on offshore oil platforms
IPC: E21B35/00
Filed: 1980-02-28
Abstract: An offshore oil platform 10 has mounted on it a stab receptacle 32 connected by pipes to nozzles at a plurality of locations on the platform. A marine service vessel 16 has a stab assembly 30 removably mounted on a crane boom including a hollow stab connected by a flexible pipe 34 to a pump. A method of suppressing fires on the platform comprises manoeuvering the vessel adjacent the platform, inserting and engaging the stab in the receptacle, separating the stab from the stab assembly and supplying fire suppressing fluid through the pipe 34, stab, stab receptacle 32 and pipes to the plurality of locations on the platform. <IMAGE>
Patent GB-2070775-A (GB)
Title: Heartbeat rate measuring instrument
IPC: A61B5/332
Filed: 1980-03-03
Abstract: A heartbeat rate measuring instrument is disclosed which has a wrist band 12 on the inner surface of which are a pair of contact pads 14 and 16 (or a pressure sensitive transducer) intended to make contact with a pulse point of a wearer of the instrument. The pads 14, 16 are corrected to circuitry (Figure 2) arranged within a casing 10 and the circuitry produces an output indicative of the pulse rate expressed in terms of beats per minute. This output may be fed to a display 22 which provides a visible read-out. The output may be compared with signals in a memory and socket 24 enables the heartbeat rate to be monitored remotely. <IMAGE>
Patent GB-2054701-A (GB)
Title: Device limiting transverse motion of a feed chain for a combined cutter-loader
IPC: E21C29/14
Filed: 1980-06-11
Abstract: The device has a lever system including a connecting link 5, a turntable 6, a hydraulic power cylinder 7 and a lever 8 connected to one another in an articulated way and so arranged that they form a quadrangle, the said lever system being situated in a plane perpendicular to the conveyor 1 and forming, together with the gate 2, the space 3 for the passage of the drive chain 4. <IMAGE>