baber/WOPTO huggingface dataset:
Patent GB-1347923-A (GB)
Title: Electrically controlled hydraulic system and transducer therefor
IPC: F15B15/28
Filed: 1971-12-15
Abstract: 1347923 Electric correspondence control systems BUNKER RAMO CORP 15 Dec 1971 [8 Feb 1971] 58340/71 Heading G1N The position of a piston 40 Fig. 2 inside a cylinder 11 is measured by a resistance potentiometer 49 comprising a resistance element 51 wound on an axial rod attached to one face of a square cross-section, elongated member 38 fixed to the end face 30 of the cylinder 11 and protruding into the piston rod 12. The piston 40 carries contact members 54, 60, the former acting as the slider on the surface of the resistance element 51 and connected by wire 64 to the other contact member 60 mounted on an axial rod 50 leading to a terminal pin 74. The ends of the resistance wire 51 are brought out to terminal pins 68, 71. The potentiometer 49 is connected in a bridge circuit with an external potentiometer whose slider is manually adjustable, any unbalance voltage between the two sliders being amplified and fed to a solenoid controlled valve which introduces pressure fluid to one side of piston 40 to move it and sliders 54, 60 until the bridge is rebalanced.
Patent GB-1245060-A (GB)
Title: Reinforced fluid transporting hose
IPC: F16L33/01
Filed: 1969-12-03
Abstract: 1,245,060. Flexible hose. BRIDGESTONE TIRE K.K. 3 Dec., 1969 [4 Dec., 1968], No. 59123/69. Heading F2P. A reinforced hose comprises an inner tube 12 of oil-proof natural or synthetic rubber, rigidly attached to nipple 7<SP>1</SP> of metal flange 7, or inner fibrous reinforcement layer 8, a plurality of 1 mm. to 15 mm. diameter stranded wires 9, formed from 0À1 mm. to 0À5 mm. galvanized steel strands, extending longitudinally and held in place by being turned around ridges 13 and 14 of flanged nipple 7, an outer fibrous layer 10, and an outer rubber cover 11. The hose sections may be linked together to convey oil from a tanker (I, Fig. 1, not shown) to a buoy (1), and thence to an onshore storage tank via a submarine hose (5) and an underwater pipeline (6).
Patent GB-1363030-A (GB)
Title: Valve device for controlling operation of a brake cylinder
Inventor: HUBER J
IPC: B60T15/42
Filed: 1972-12-21
Abstract: 1363030 Relay valves; rail vehicle compressed air braking system KNORR-BREMSE GmbH 21 Dec 1972 [28 Dec 1971] 59261/72 Heading F2F A rail vehicle compressed-air brake system includes a valve device 2 for controlling the operation of a brake cylinder 35 in response to pressure changes in a main air line 5. The device 2 comprises a control piston 3 separating a control chamber 4 from an admission chamber 6 connected to the line 5, the piston 3 being connected by a rod 8 to a valve packing 9 of a bleed valve 9, 14 which controls admission of compressed air from chamber 6 to a bleed chamber 12 which is connected to atmosphere via a valve 54 and is also connected via a duct 19 to a space 17 of a piston chamber; the packing 9 carries a valve tube 27 which is actuable to operate an inlet valve 38, 41 connecting an auxiliary reservoir to the brake cylinder 35 and an outlet valve 37, 38 connecting the brake cylinder 35 to atmosphere. Seat 14 of valve 9, 14 is formed on a control sleeve 13, on the external surface of which there bears a tappet 15 connected to an auxiliary piston 16 which separates space 17 from a space 18. The space 18 is connected via a duct 20 with chamber 6 and via a duct 25 and a shut-off valve 47 with chamber 4. The piston 16 is slidable over a duct 22 to connect this duct 22 with one or other of the spaces 17, 18, and the piston 16 has a valve seat 24 co-operable with a sealing ring 26 to form a shut-off valve 24, 26. Operation.-To brake the vehicle, a pressure drop is introduced into line 5, whereupon piston 3 moves upwardly to open valve 9, 14 whereby air flows from chamber 6 to the bleed chamber 12 and thence to atmosphere. Thus piston 3 is displaced upwards to an increased extent to move valve tube 27 to close outlet valve 37, 38 and open inlet valve 38, 41. Compressed air is thereby introduced into braking cylinder 35 and also into a chamber 51 and a chamber 43. The pressure in chamber 43 acts on a piston 44 to close a valve 47 cutting off chamber 6 from chamber 4, and increasing pressure from bleed chamber 12 acting in chamber 17 will move piston 16 to close valve 24, 26 and establish a throttled connection between line 5 and bleed chamber 12 via throttled connection 22. The control sleeve 13 is thereby allowed to move upwards to close valve 9, 14 and valve 54 is also closed by pressure building up in the chamber 51. As soon as braking pressure builds up in chamber 34 corresponding to the pressure drop in line 5, a piston 32 is moved downwardly to close inlet valve 38, 41.
Patent GB-1374110-A (GB)
Title: Cutter assembly for a mower and a blade member for such a cutter  assembly
IPC: A01D34/535
Filed: 1971-12-21
Abstract: 1374110 Mowers MOTT CORP 21 Dec 1971 59485/71 Heading A1F In a mower with a horizontal rotating shaft 10 carrying alternate lug members 12 and spacers 20 preferably slidably mounted thereon and held fixed under the pressure of a spring 21, resilient co-operating connecting means are provided whereby each blade 14 can be directly but loosely connected to a lug 12 without intermediate fasteners or clips. In one embodiment there is a circular opening 24 in each lug, and the end of each blade 14 is bent and bifurcated to form two fingers 34 which have notches 43 in their outer edges. The blade 14 which is wider than the opening 24 is inserted therein by compressing the resilient fingers 34 together using a pair of pliers; on releasing the fingers 34 the notches 43 engage the margin 58 of the lug 12. In a modification the opening to the axis of the shaft 10 should it strike in the lug 12 is pear-shaped, with the long dimension on or parallel to a'shaft radius. The lugs 12 are formed by the opposite end portions of flat elongated strips 16, adjacent strips 16 being spaced. 90‹ apart. The width of the notches 43 is such as to allow the blade 14 to move with respect to its lug 12 in a plane including the axis of the shaft 10, so that upon rotation of the shaft 10 the pairs of opposed blades are in dynamic balance. The blade is also free to move in a plane transverse a rock. The blades can be reversed with respect to the lugs 12, as indicated by broken lines in Fig. 1, so as to use their opposite cutting edges. In a modification the resilient means is on the lugs and the openings are in the blades.
Patent GB-1315644-A (GB)
Title: Method of making a finned unitary propellant powder charge
IPC: F02K9/10
Filed: 1971-12-22
Abstract: 1315644 Propellant grains FRANCE ARMED FORCES MINISTER OF 22 Dec 1971 [22 Dec 1970] 59813/71 Heading F3A A method of manufacturing a propellant grain comprises splitting a cylindrical block of propellant into two or more sectors, machining each sector to form longitudinal grooves with intervening fins 4a, 4b, joining the sectors to reconstitute. the cylindrical block, and coating the cylindrical surface of the block with a layer of combustion inhibitor 7. Nitrocellulose felt may be placed in a central bore in the block prior to coating. The propellant may be a double base explosive consisting of nitroglycerine, nitrocellulose, bentralite, combustion catalyst and acetylene black or a compound powder formed of ammonium perchlorate, aluminium and polybutadiene binder. The inhibitor 7 consists of a polyester lacquer with a methyl-ethyl ketone peroxide catalyst and a cobalt napthenate accelerator. The sectors are joined together with the aid of an adhesive or a solvent.
Patent GB-1277569-A (GB)
Title: Mounting for shiftable magnetic head
Inventor: DATTILO DONALD JOSEPH
IPC: G11B5/48
Filed: 1970-12-17
Abstract: 1277569 Magnetic head mounts MOTOROLA Inc 17 Dec 1970 [28 Jan 1970] 59986/70 Heading G5R A track changing/support system for a magnetic tape head 20 comprises a pantograph arrangement of two parallel plates 24, 26, having shapes such as shown in Fig. 3, and two U- shaped support members 34, 50, the head 20 being fixed to the member 50 and protrusions of the plates 24, 26 resting in notches 38, 52 in the support members 34, 50. The arrangement allows pivotal movement in the plane of the drawing, (Fig. 2), e.g. when a cam/cam-follower system 16a, 16b, 16c, 22 is operated for track changing, but restricts lateral movement. The member 34 is pivotally supported by a rivet 36 in a standard 28 and the whole support system may be adjusted about this axis by a screw 44.
Patent GB-1243550-A (GB)
Title: Constant velocity ratio universal joint
IPC: F16D3/224
Filed: 1968-12-23
Abstract: 1,243,550. Universal coupling. TOYOTA JIDOSHA KOGYO K.K., and AISHIN SEIKI K.K. 23 Dec., 1968 [31 Dec., 1967], No. 61198/68. Heading F2U. A constant-velocity-ratio ball-in-sphericalsocket universal coupling transmits torque by first balls 251 in a race kept in the plane bisecting the angle between the shaft axes by second balls 261 (possibly smaller) in between the first balls, the grooves 4l, 141 in which the balls 25l run being arcuate centred on the joint centre Om, but the grooves 51 and 15l for the balls 261 being centred at Em and Elm equidistant from Om. There may be either an equal number (three or four) of first and second balls or else six balls 25l and three balls 26l. The groove sections are also described.
Patent GB-1287110-A (GB)
Title: Semiconductor devices
IPC: H01L29/94
Filed: 1969-12-17
Abstract: 1287110 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Dec 1969 [20 Dec 1968] 61515/69 Heading H1K An integrated circuit comprises a wafershaped semi-conductor body with circuit elements adjoining one surface thereof, and capacitor on the other surface of the body, one plate of the capacitor being formed either by the surface portion of the body, or a metal layer on the surface, a dielectric layer being provided on the plate, and a metal layer, forming the second plate, on the dielectric layer, the voltage supply to the circuit being connected to the capacitor plates. In the embodiment in which the first plate comprises a metal layer, the dielectric may be formed from the oxide of the metal layer by anodic oxidation. The metal may be of aluminium or tantalum, and the dielectric in the other embodiment be of silicon dioxide.
Patent GB-1244190-A (GB)
Title: Improvements in apparatus for sensing the length of a tape loop
IPC: G11B15/58
Filed: 1968-12-30
Abstract: 1,244,190. Automatic control of loop length. GENERAL ELECTRIC CO. Dec.30, 1968 [Jan. 2, 1968], No.61649/68. Heading G3R. [Also in Division G1] The length of a magnetic tape loop in a tape bin is kept constant by measuring the amount of light it allows to pass from an elongated source to parallel light guide containing fluorescent material and controlling the tape supply or take-up reel accordingly. A fluorescent tube light source 29, Fig. 3, is located between the supply and take-up vacuum bins 19, 20 of a tape handler. Light not interrupted by the tape loops 26, 27 falls on the acrylic rods 32, 37 exciting fluorescence therein. Detection of the fluorescent light conducted along the rods 32, 37 by internal reflection is by photocells 34, 35 at the ends of the rods or a single photo-cell 42 to which light is reflected by a notch 38. Conduction of light by the rods may be improved by coating them with reflecting material.
Patent GB-1191390-A (GB)
Title: Method of Manufacturing Welded Steel Gratings.
IPC: B23K11/00
Filed: 1968-12-31
Abstract: 1,191,390. Welding by pressure. EVG ENTWICKLUNGS-U. VERWERTUNGS.- G.m.b.H. 31 Dec., 1968 [20 Sept., 1968], No. 61926/68. Heading B3R. In making gratings from crossed alloy or high carbon steel wires or rods, the wires or rods are electric resistance welded at their crossing points and joining pads of weldable material are inserted between the wires at these points. A transverse alloy steel wire 4, Fig. 1, is arranged on a longitudinal alloy steel wire 3 with a jointing pad 5 e.g. of soft iron arranged between them and spot welding electrodes 1, 2 apply pressure and supply current to deform the pad, but insufficiently to bring the wires into contact, and effect welding. The pad may have opposite domed, conical or pyramidal surfaces and a pad in disc form may be employed. Alternatively the pad may have corrugated surfaces as in Fig. 5 with the corrugations on one side normal to those on the other. Wires of different diameter may be welded when a frusto-conical pad is used, the larger surface being in contact with the larger wire. The pads may be of low carbon alloy steel with the addition of elements Mn, Cr, Ni, Mo, Nb, Si, A1, Cu or Co and may be made by flame cutting strip, wire or rod or stamped from sheet or plate or may be cast or sintered.
Patent GB-664803-A (GB)
Abstract: 664,803. Mowing-machines. HIGH DUTY ALLOYS, Ltd., HERRINGTON, H. G., and STONE, L. N. May 15, 1950 [June 3, 1949], No. 14964/49. Class 6(iii) A swath-board is made in two parts 1, 2 hinged together, the axis of the hinge-pin 3 being inclined to the vertical so that the part 1 can swing backwardly and upwardly to clear any obstruction which the machine, to which the board is attached, may encounter. Lugs 1a and 2a of the hinge limit relative forward movement of the two parts to a position of mutual alignment. The part 2 is a bracket attached to the finger-shoe of the cutter-bar and a grassstick 4 is secured to the part 1 by a bolt 5 and a clamp 6. The board may be made of wood or light metal alloy, e.g. aluminium alloy
Patent GB-2000232-A (GB)
Title: Dispensing valves
IPC: B65D83/14
Filed: 1978-06-19
Abstract: A dispensing valve is described for simultaneously dispensing from a pressurised container two flowable substances in fixed quantity ratio. In a preferred embodiment a rigid valve stem 31 moves longitudinally in a resilient housing which is sealingly secured to a lid closing an opening in the container, and a number of longitudinally spaced resilient gasket flanges 23, 24 extend inwardly within the central opening of an inner casing portion 13 of the housing, each flange having axially extending gasket surface 29 and a radially extending gasket surface 28 of smaller diameter which seals against the shaft of the stem. The stem shaft has sealing flanges 33, 34 which seal with their faces against the axially extending gasket surfaces. Outlet passageways 35, 36 in the shaft open into an annular space between the two gasket surfaces of each gasket flange when the valve is in the closed position. Openings in the casing wall lead to the substance containers, which are one inside the other. The quantity ratio is determined by choice of the outlet passageway opening sizes. <IMAGE>
Patent GB-2006437-A (GB)
Title: Method of evaluating the corrosion rate of metal and apparatus for evaluating the same
IPC: G01N17/02
Filed: 1978-10-09
Abstract: A metal test piece (2) is disposed in a cell (4) filled with a corrosive test solution. The metal test piece (2) is electrically charged instantaneously through the counter electrode so as to have a few millivolts polarization potential  eta t. The charge consumed by the corrosion reaction of the test piece (2) is measured by a potential recorder in the form of a variation of the polarization potential  eta t with respect to time t. The measured ( eta t-t) relation is analyzed to obtain a polarization resistance Rp of the metal test piece (2). After the potential of the metal test piece (2) returns to natural potential Ecorr, the test piece is charged again until its polarization potential  eta t rises to 50 millivolts or more, and a ( eta t-t) relation is measured in the same way as mentioned above. Based on this relation a Tafel slope  beta a of anodic reaction is obtained. After the potential of the metal test piece (2) has returned to natural potential Ecorr, the test piece is so charged for the third time as to have its polarization potential eta t lowered to -50 millivolts or less, and a ( eta t-t) relation is measured. This relation is analyzed to obtain a Tafel slope  beta c of cathodic reaction. Based on the polarization resistance Rp, Tafel slopes  beta a and  beta c, a corrosion current density Icorr is obtained. Based on the corrosion current density Icorr a corrosion rate V is calculated. <IMAGE>
Patent GB-2040668-A (GB)
Title: Sterilizing packages
IPC: A23L3/04
Filed: 1978-12-01
Abstract: Continuous sterilization of the contents of flat packages is carried out by loading the packages 11 into trays 12 at 2, stacking several trays at 3, loading stacks of trays into rotary carriers 13, passing successive carriers continuously through a seal into and through a sterilizing chamber 5 (which also includes a subsequent cooling section), whereafter the carriers leave the chamber 5 through the seal and the trays are removed from the carrier at 6, separated at 7 and unloaded at 8. The continuous process enables high- temperature short-time sterilization of the packages. <IMAGE>
Patent GB-2008960-A (GB)
Title: Model aircraft assembly
IPC: A63H27/04
Filed: 1978-12-14
Abstract: A model aircraft assembly includes a tower 10 with a wire having an external sleeve connected at one end to the tower and at the other end to a model aircraft 12, which has a electrically operated fan, propeller or rotor, the attitude and/or speed of the aircraft being controllable from a control unit 17 remote from the tower, the control unit also having a further control 21 to operate an auxiliary function, via a sleeve carried on the exterior of the wire, the auxiliary function being, for example, the dropping of bombs or the opening of a door on the aircraft. <IMAGE>
Patent GB-2013192-A (GB)
Title: Guanidine Derivatives, Processes for their Production and Pharmaceutical Compositions Containing Them
IPC: C07D333/22
Filed: 1979-01-22
Abstract: Compounds of formula I,   <IMAGE>  wherein R1, R2 and R3 are, independently, hydrogen, halogen or alkyl of 1 to 4 carbon atoms, and either R4 and R6 are independently hydrogen, alkyl or  hydroxyalkyl, each of 1 to 4 carbon atoms, or  alkoxyalkyl with a maximum of 6 carbon atoms,  or R4 and R6 together signify dimethylene or trimethylene, R5 and R7 are, independently, hydrogen or alkyl of 1 to 4 carbon atoms, and X is sulphur, oxygen, imino, or (C1-4) alkylimino, are useful as antihypertensive agents.
Patent GB-2015033-A (GB)
Title: Method of Applying Indicia to a Metal Surface on an Article
IPC: B41M1/30
Filed: 1979-02-20
Abstract: A method of applying indicia to a metal surface in which the metal surface is first cleaned, the indicia are printed on the surface in ink 2 by any suitable printing process and a firmly adhering metal coating 4 is then deposited on the ink-free portions 3 of the surface so as to embed the ink in the metal coating. The thickness of the deposited metal layer is approximately the same (a) as the thickness of the ink layer, but may be more (b) or less (c) than the thickness of the ink layer. The metal coating may be deposited by electro-plating or by a chemical process by immersion in a solution which contains metal ions. The method may be used to apply indicia to a non-metal (e.g. plastic) surface if the surface is first metallized. <IMAGE>
Patent GB-2023674-A (GB)
Title: Method of making self-twist yarn
IPC: D02G3/28
Filed: 1979-05-17
Abstract: Groups of singles yarns (14, 15, 16, 17) are false-twisted, brought together node locked and plied to form plied strands (32, 33). Additional torque is applied to each plied strand eg by devices (38, 39) and the two stands are then brought together and allowed to self-twist to form a yarn (48a). This yarn is then heat set and then its two component yarns (32, 33) are separated to be wound up. <IMAGE>
Patent GB-2020825-A (GB)
Title: Improvements in or Relating to Weighing Balances
IPC: G01G23/37
Filed: 1979-05-31
Abstract: In an electromechanical weighing balance an electrical signal produced in response to the weight of a weighed object is compared with a reference signal and a ratio of their values is obtained. A reference weight is weighed to give a signal with which the reference signal is compared and the weighing circuitry modified by a feedback voltage so that the measured value of the reference weight equals a stored value. In one embodiment a dual ramp integrator is used. The feedback voltage may be used to change the period during which the unknown voltage is integrated using a correction counter 17 or alternatively a frequency changer alters the frequency of the clock pulses utilised in the circuit. Other modifications of the circuitry are also utilised in other described embodiments. <IMAGE>
Patent GB-2041754-A (GB)
Title: Improvements in and relating to support bandages
IPC: A61F13/00
Filed: 1979-06-04
Abstract: A bandage, sometimes referred to as a bandage belt, is described. This comprises a semi-circular arc of Neoprene rubber strip (10) with the strip being curved not only in the semi-circular arc but also across its width so as to define a convex outer surface and a concave inner surface. A buckle (18) and strap (20) are attached to or formed integrally with the strip (10). One end of the strip is tapered (14, 16) and the buckle (18) is located at the vertex of the taper. The strap (20) extends along the length of the belt with its free end pointing away from the buckle (18). <IMAGE>
Patent GB-2027222-A (GB)
Title: Mirror device for separating light beam emitted by a source and a coaxial reflected beam
IPC: G02B27/10
Filed: 1979-06-07
Abstract: In order to separate the beam F1 emitted by a source e.g. a laser 3 from the beam F2 reflected by a surface S following the same path there is used a mirror 1 which may be spherical having an aperture 2 which transmits the emitted beam and focuses the reflected beam on a photo-detector 6. Beam F1 may be scanned across the surface S using a scanning device e.g. mirrors 4 and 5. <IMAGE>
Patent GB-2040817-A (GB)
Title: Coil for hammer in dot matrix print head
IPC: B41J2/29
Filed: 1979-08-14
Abstract: A print head includes a number of hammer assemblies, each composed of a plurality of extremely thin, substantially planar hammers 50 suspended from shaft 60 in closely packed side-by- side relationship, all of which are situated between a single pair of "U"- shaped primary magnets. Each hammer consists of an aluminium frame 68 carrying a flat coil 80 and print wire 90. To maximize the number of coil windings within the very limited width each coil is wound with one section thinner than the remainder of the coil by an amount equal to the diameter of the wire lead 84. The lead 84 is caused to extend radially along the flat side surface of the thinner section 99 toward the corner at the periphery of the thinner section which has been outwardly extended to a small degree to compensate for the reduction of the width of the section. The lead 84 is then bent over the edge of the coil and the outermost turn of the coil is wound on top of the lead 84 to maintain it in the position. <IMAGE>
Patent GB-2032479-A (GB)
Title: Novel fabric softeners
IPC: D06M13/405
Filed: 1979-08-14
Abstract: A fluid, water-dispersible composition for use as a fabric softener, comprises a water dispersible amido amine of the formula  RNH[(CH2)nNR]mR wherein an average of from 20% to 80% of the R groups are acyl groups (12-22C), at least 20% of the R groups are -CH2CH2OH or -CH2CHOHCH3 or mixtures of these groups and any other R group is hydrogen, n is 2 or 3 and m is an integer of 2 to 5, or a water dispersible salt or partial salt thereof. The amido amine may be prepared by reacting diethylene triamine or a higher homologue thereof with two molar proportions of fatty acid, mono- ethoxylating and, optionally, wholly or partially neutralising with a lower organic acid and/or sulphur dioxide.