baber/WOPTO huggingface dataset:
Patent GB-1317546-A (GB)
Title: Automatic stereoplotting apparatus
IPC: G01C11/00
Filed: 1971-05-17
Abstract: 1317546 Photogrammetry ITEK CORP 17 May 1971 [1 June 1970] 15343/71 Heading H4D In automatic photogrammetric apparatus in which each stereo photograph 22, 23, Fig. 1 is scanned over a small portion 1 by a respective flying spot scanner tube 26, 27 and resulting video signals from respective photomultipliers 32, 33 are correlated at 46 and the result processed in system 48 to give, on lines 51 and 52 an X parallex and a traversing (y) velocity signal respectively, which are fed to an image transformation system 21, Fig. 2, the X parallex signal, proportional to the height of the terrain being scanned in the photographs, is used to energize a Z drive motor 83 such that, via linkages and gears, 84, 82, Z carriage 81 and hence the rod coupled photograph carrying platforms 86 and 87, are moved in the Z direction to reduce the X parallex signal. At a position in the photographs of rapid height change however, the motor 83, carriage and platforms etc. have such a high inertia that the height change cannot be followed. To overcome this the Z drive X parallex signal is integrated to give a signal which passes on line 50 from the system 21 to push-pull amplifier 53 to give opposite polarity signals which are used to affect the raster scan deflection circuits so that the position on the tube face of the scanning raster is changed and a movement of the area of the photograph being scanned (equivalent to a movement of the photographs) is produced to reduce the X parallex. This latter raster movement is very fast and compensates for the inertia of the motor 83 etc. The X parallex signal on line 51 is fed to the displacement control system 103, Fig. 3, to cause a servomotor 110 to give a proportionate rotation of gears 112, 113, 124. Gear 113 rotates a potentiometer 111 supplied with ends of winding positive and negative bias voltages from terminals 118 and 119. The wiper of the potentiometer gives the integral of the X parallexes and this integral signal is fed to the push-pull amplifier and also to the servomotor 83. The servomotor 110 and potentiometer 111 constitute the low inertia-quick reacting system. The true total parallex between the photographs is determined by a differential coupling mechanism 122 receiving, via shafts 121 and 123 the rotations of motors 83 and 110. A read-out synchro 126 shaft (125) coupled to the mechanism 122 gives a value of the true parallex.
Patent GB-561867-A (GB)
Title: Improvements in or relating to hydraulically-actuated apparatus
IPC: F15B11/02
Filed: 1942-11-02
Abstract: 561,867. Hydraulic transmission of power. BRISTOL AEROPLANE CO., Ltd., HENLY, A. G., and PRINCE, V. W. J. Nov. 2, 1942, No. 15418. [Class 69 (ii)] In hydraulic mechanism, e.g for actuating fric tion clutches quick actuation is effected at ful supply pressure reducing means being subsequently introduced into the circuit to maintain actuation at lower pressure. In a fric tion clutch operat ing mechanism, a hand control valve for selective oper ation of two clutches, e.g. as described in Specification 510,916, carries a cam 26, Fig. 2, which moves a piston valve 27 to place a pressure line 29 in communication via pipe 22 with a throttle valve 18, Fig. 5, to move it to fully open position. Pressure liquid is then supplied via pipe 14 to the selected clutch. Pressure liquid in valve 27 leaks to the right past the loose fitting head of the valve and builds up a pressure which ultimately returns the valve and places line 22 in communication with exhaust. Throttle valve 18 then moves to the left under the influence of pressure in pipe 14 and its head 11 throttles the supply passage 14. The lubrication system of an internal-combustion engine may provide the pressure liquid. Specification 465,612 also is referred to.
Patent GB-781022-A (GB)
Title: Liquid level indicating apparatus for large tanks
IPC: G01F23/42
Filed: 1955-05-27
Abstract: 781,022. Indicating liquid levels. VAPOR RECOVERY SYSTEMS CO. May 27, 1955 [June 7, 1954], No. 15455/55. Class 123(1) [Also in Group XIX] The depth of liquid in a tank 1, Fig. 1, is indicated by a float 4 which is guided within the tank by spring-biased taut wires 5 and has its movements transmitted to an indicator 34, Fig. 4, in the form of a plurality of interconnected graduated discs, by a flat flexible tape 11 which has uniformly spaced perforations for engagement with radial pins 26 on a rotatable contact wheel or driving pulley 24, Figs. 2 and 3, adapted to actuate said indicator and the end of which is coiled around a take-up storage sheave 54. The indicator 34, wheel 24 and sheave 54 are located in a housing 22 supported from the tank 1 by a bracket 23. In the form shown the indicator comprises four discs 34a ... 34d which are graduated respectively in fractions of an inch, inches, feet and tens of feet and are mounted on a shaft 33, the disc 34a rigidly and the other discs loosely, said shaft 33 terminating in a bevel pinion 32 which mates with a gear wheel 29 on the shaft 27 of the pulley 24 so that rotation of the latter will cause the disc 34a to rotate. Rotation of the other discs is effected each by the previous disc; for example the tens disc 34d is rotated by a pinion 45, Figs. 7 and 9, which is loosely mounted on a shaft 46b extending longitudinally between the end frame members 47 of the indicator and itself rotated intermittently by a dog 44 on the units disc 34c. A constant tension in the tape 11 is maintained by a spring 50 which extends between, and the ends of which are coiled upon, sheaves 49a, 53, the one end of the spring being secured to the sheave 53 which is integral with the tape take-up sheave 54. In order to exert a slight increase in tension in the tape to ensure that it is running freely over its guide pulleys 16, 19, there is provided on the housing 22 a rotatable knob 76 with gravity pawl 73 adapted to co-operate with inclined teeth 72 on the inner face of the rim of the sheath 54.
Patent GB-1362756-A (GB)
Title: Spring suspension unit particularly for vehicle suspension systems
IPC: F16F13/12
Filed: 1972-04-04
Abstract: 1362756 Fluid springs AIR LIFT CO 4 April 1972 [7 April 1971] 15472/72 Heading F2S [Also in Division B5] An inflatable bag B for use as an air spring inside the coil spring S of a vehicle suspension is made by moulding two cup-shaped bodies 14, 15 with radially outwardly projecting flanges 14c, 15c at their open ends and then heat sealing the flanges in abutting air-tight relation to form a convolution engaging ring on the bag. The bag is injection moulded from polyurethane. An inflation valve (Fig. 3, not shown) or a barbed connector for a filling hose is heat sealed in or integrally moulded with the end wall of the bag.
Patent GB-581512-A (GB)
Title: Improvements in or relating to the control surfaces of aircraft
IPC: B64C13/02
Filed: 1944-08-14
Abstract: 581,512. Aircraft control surfaces. FAIREY AVIATION CO., Ltd., and TIPS, E. O. Aug. 14, 1944, No. 15496. [Class 4] An aircraft control surface having a servo flap controlled by the pilot, is provided with a tab which is free to move under the influence of the airstream and which acts on a movable stop to limit the extent by which the servo flap may be moved. Alternatively, the tab may control the spring loading of the flap. As shown, a flap a is pivoted at b to the trailing edge of an elevator c pivoted to the aircraft at d. The flap is operable by the pilot through chain-and-sprocket gearing, a universally jointed link k, a crank arm j, a spindle h, an arm g and a link f. An abutment p<1> on the elevator limits downward movement of the arm j and upward movement is resisted by a spring q acting on an abutment p. A tab r is also pivoted to the elevator and acts through a linkage t, u, arm v, camshaft w and cam y on a spring-loaded plunger 11, 12 which is mounted on the elevator in the path of movement of the arm j. Link t carries a stop 16 and is adjustable in length by a screwed head 17, a spring 18 being interposed between the head and an abutment 15 on the elevator to control movement of the tab r. Upward movement of the tab causes the plunger 11, 12 to be projected downwardly and thus limits the movement of the arm j. In a modification, the cam y acts on the spring q to increase the spring-loading of the flap.
Patent GB-1447573-A (GB)
Title: Circuit arrangement for providing unipolar output signals
IPC: H03K5/003
Filed: 1974-04-08
Abstract: 1447573 Transistor circuits KOMBINAT VEB FUNKWERK ERFURT 8 April 1974 15524/74 Heading H3T A circuit for converting bipolar input signals to unipolar output signals with simultaneous delivery of polarity information comprises: a delay network 3 and a trigger circuit 5 connected to input 1; an impedance converter 2 and a polarity inverter 4 connected to outputs from the delay network 3; gating circuits 6, 7 having their inputs connected to the outputs from the converter 2 and inverter 4 respectively and their output connected to a circuit output 9, the gates being controlled by respective control signal from the trigger circuit 5; and an output 10 for polarity information also connected to the trigger circuit 5. Input signals of one polarity set trigger circuit 5 to a first state in which gate 6 is open to pass the input at 1 to output 9 via impedance converter 2. Input signals of the other polarity cause trigger circuit 5 to open gate 8 to pass the input to the output via inverter 4. The outputs from the trigger circuit are fed to the gates via a control stage 7 (detailed in Fig. 2, not shown) which comprises two cascaded transistor stages in each control path (19, 21 or 20, 22) the output control signals being taken from the collectors of the second transistor of each pair and the emitters of these second transistors (21, 22) being coupled to a constant current source including a further transistor (23). The two gates comprise respective diode bridge circuits.
Patent GB-141963-A (GB)
Title: Improved means for carrying the main frame of self laying track motor vehicles
IPC: B62D55/084
Filed: 1919-06-20
Abstract: 141,963. Blackstone, G. M., Carter, F., and Carter, E. June 20, 1919. Balance frames and equalizing-levers; three-point suspension. - In an endless-track vehicle, the two track frames are pivoted to the main frame at one end while the other ends are connected thereto by bellcrank levers forming a transverse equalizing system. One end of each of the track frames b is pivoted to the main frame a by means of the transverse axle c, while the other ends are connected to two bell-crank levers e arranged in a transverse plane, the vertical depending arms of the levers being connected to one another by a link e<2>. Lateral tilting of the track frames is prevented by transverse links g, each of which forms with the horizontal arm of the corresponding bellcrank lever a parallel motion.
Patent GB-218326-A (GB)
Title: Automatic device for the filling of casks
IPC: B67C3/30
Filed: 1924-06-30
Abstract: 218,326. Soc. de Manipulation des Liquides. June 30, 1923, [Convention date]. Ball and float valves. -An apparatus for automatically stopping the inflow of liquid when a predetermined level is reached comprises an inlet chamber b communicating by a valve f with a chamber c from which a tube h leads into the cask, a second tube k being contained within the tube h and leading to a chamber d having an opening x for the exit of vent air or for its passage through a tube y with the filling reservoir. When the liquid in the cask reaches the lower end of the tube k the air can no longer escape, but becomes compressed in the chamber c so that the liquid rises rapidly in the tube k, raises a float i in the chamber d, which, through a rod j raises one end of a lever o and so releases a trip lever a so that the inlet valve automatically closes. The filling head may be connected to the cask by a screwed rack.
Patent GB-1216555-A (GB)
Title: Cryogenic refrigerator
IPC: F02G1/044
Filed: 1968-04-02
Abstract: 1,216,555. Refrigerators. HUGHES AIRCRAFT CO. 2 April, 1968 [3 April, 1967], No. 15741/68. Heading F4H. A cryogenic refrigerator includes a hot chamber 42, a cold chamber 44 and an intermediate temperature chamber 22 which are separated by hot and cold displacer pistons 24 and 28 and are interconnected through regenerators 46 and 48. The displacers are driven by a crank mechanism 30, the hot chamber receives heat from a heat source 54 which may have a temperature of 1000 F., an ambient temperature cooler is provided, and cold is withdrawn at 52. The working gas volume is constant and compression and expansion occur as a result of charges in average gas temperature caused by variations in the quantities of gas present in the hot and cold chambers. The motor which drives the crank mechanism 30 is arranged with its rotor inside, and its stator outside, the sealed refrigerator housing, Fig. 2 (not shown). The refrigerator may be used to cool an infra-red detector in an earth orbiting vehicle.
Patent GB-235894-A (GB)
Title: Improvements in or relating to electrodes for electric furnaces
IPC: H05B7/09
Filed: 1925-01-05
Abstract: 235,894. Kilburn, B. E. D., (Norske Aktieselskab for Elektrokemisk Industri). Jan. 5, 1925. Furnace details.-In an electrode 1, such as that described in Specification 137,811, which is baked in the furnace in which it is used and is provided with a metallic casing 2 and conducting ribs 3, the slots in the electrode which receive the inner portions of the ribs are sloped downwards as shown, so that when the metal constituting this portion of the rib melts it does not run down into the furnace and electric connection between the mantle and the electrode is maintained. If the furnace is used for making aluminium the mantle and ribs may be of aluminium.
Patent GB-164359-A (GB)
Title: Improvements in means for locking nuts and bolts and the like
IPC: F16B39/20
Filed: 1921-06-08
Abstract: 164,359. Grosclaude, D. June 8, 1920, [Convention date]. Locking nuts.-A nut and bolt are locked together by means of a wire which passes through a hole B in the shank of the bolt and along two diametrically opposed V - shaped grooves C. When the nut is in place and tightened up, the ends of the wire are turned down on to the nut or into grooves in its castellation. According to the Specification as open to inspection under Sect. 91 (3) (a), if the hole B does not pass completely through the bolt, the wire is in two parts. The two holes thus necessitated need not be on the same axis. This subject-matter does not appear in the Specification as accepted.
Patent GB-277914-A (GB)
Title: Improvements in or relating to air speed-indicators for aircraft
IPC: G01P5/02
Filed: 1927-06-14
Abstract: 277,914. Havilland, G. de, and De Havilland Aircraft Co., Ltd. June 14,1927. Flow meters, pressure-actuated.-An air-craft speed indicator comprises a vane 2, mounted on a spring wire 4 coiled at 5 and adjustably connected to a base plate at 6, the wire being guided in a slot 13. The scale 3 is marked so as to differentiate one portion from another, and in one position the vane may actuate an audible and/or visual signal.
Patent GB-1042244-A (GB)
Title: Toy loom
IPC: D03D29/00
Filed: 1964-04-16
Abstract: 1, 042, 244. Toy looms. LOUIS MARX & CO. Ltd. April 16, 1964 [May 24, 1963 ], No. 15819/64. Heading D1E. A toy loom has a reed 37 that may be pivoted on any of a number of pegs 24 on the frame 15, shedding combs 42 mounted on both sides of the reed 37 to be pivoted therewith and alternately shed by rocking of a handle 52<SP>1</SP> and "temple" rods 70 which may be located at different positions across the reed and around which the weft is wrapped to prevent necking of the fabric.
Patent GB-606952-A (GB)
Title: Improvements in or relating to tables
IPC: A47B13/06
Filed: 1946-05-24
Abstract: 606,952. Furniture combinations. INKPEN, H. G. May 24, 1946, No. 15834. [Class 52(iii)] A table 4 is pivotally mounted on a pair of side frames 1 and may be turned into vertical or inclined position to serve as an electric heater or as a fire screen. The table is provided with trunnions 3 which pass through bearings 2 on the side frames and are provided with clamping fly nuts 5. The underside of the table is provided with a heater which comprises a reflector 7 and one or more heating elements 9. Additional heaters may be provided in parallel relationship to the first heater. The table top may be ornamented and when inclined or upright may serve as a firescreen. The side frames are preferably interconnected by a stay 6. Fixed abutments 12 are provided on the side frames to support the table top in horizontal position together with pivoted abutments 13 which are turned out of the way when it is desired to rotate the table top 4.
Patent GB-1496816-A (GB)
Title: Asymmetric semipermeable membranes of polybenz-1,3-oxazine diones-(2,4)
IPC: B01D71/62
Filed: 1975-04-17
Abstract: 1496816 Semipermeable membranes BAYER AG 17 April 1975 [19 April 1974] 15853/75 Heading B5B [Also in Division C3] The invention comprises asymmetric semipermeable membranes for reverse osmosis prepared from homo- or co-polybenz-1,3-oxazine diones-(2,4). The polymers have units of formula where Ar is a tetravalent aromatic group, Ar<SP>1</SP> is a phenylene or naphthylene group or two aromatic groups linked by a bridging atom or group, and the degree of polymerization is from 10 to 200. Solvent solutions of the polymers together with pore forming substances, e.g. alkali metal, alkaline earth metal and onium salts, are used to form films on substrates, e.g. glass plates; the solvents are partially removed in streams of inert gas, e.g. air or nitrogen, at elevated temperatures and the membranes, while still moist, are contracted with precipitating agents, e.g. water or alcohols, at lowered temperatures, to remove the salts and remaining solvents and to form a thin, non-porus separating layer on the surface of the membrane directly exposed to the membrane being a porous supporting structure. In examples membranes are prepared from various polymers of the above formula and used to desalinate acidified sodium chloride solution.
Patent GB-469510-A (GB)
Title: Apparatus for scoring games
IPC: A63F1/18
Filed: 1936-08-27
Abstract: 469,510. Games-scoring apparatus; calculating-apparatus. MILLER, R., and BEVERLEY, C. Aug. 27, 1936, No. 15860. [Class 132 (ii)] [Also in Group XIX] A games-scoring device comprises a disc c pivoted at g and rotated by a peg inserted through an aperture d in the casing into holes i in the disc. Numbers h, one of which is shown through an opening in the casing, are provided on the disc c and other numbers are arranged adjacent the slot d. These two sets of numbers run in opposite directions so that successive scores can be subtracted from an initially set number. A hundreds disc k is actuated by a pin m on the disc c. Reference has been directed by the Comptroller to Specifications 21658 /10, 107,416, [both in Class 132 (ii)], 403,019, and 422,230.
Patent GB-908226-A (GB)
Title: Apparatus for dispensing weighed quantities of granular or pulverulent material froma bulk supply
IPC: G01G13/00
Filed: 1960-05-05
Abstract: 908,226. Weighing apparatus. EVANS, T. I., and HUDSON, G. July 31, 1961 [May 5, 1960], No. 15874/60. Class 143. Apparatus for dispensing weighed quantities of material from a bulk supply, e.g. feed concentrates for cows, comprises a hopper 10 the outlet 11 of which is controlled by a slide 12, a weighing container 17 below the hopper and suspended from a weighbeam 18 and means which, when the outlet 11 is closed, open one of two doors 25 to deliver a weighed quantity of material from either side of the container 17. When the required weight of material, as indicated by a spring balance 21, has been received in the container 17, a rod 14 is pushed to cause the slide 12 to close the outlet 17 and then rotated in one direction or the other to release one of the doors 25. Similar mechanisms are associated with the doors and the one which is operated depends on the direction in which the rod 14 is rotated. A double-ended lever 37 is fixed to the rod 14 and on the rotation of the rod it moves to actuate one of two bell-crank levers 32 out of engagement with a stop pin 36 on the wall of the container 17 and so release a pivoted arm 29 to which the bellcrank lever 32 is pivoted, at which a door 25, connected to the lever 32 through a link 28, opens. The door is reclosed by a spring 27, the levers returning to their initial positions and the re-engagement of the stop-pin 36 retaining them. A projection 39 from the rod 14 slides in a slot to prevent rotation of the rod till the slide 12 has fully uncovered the outlet 11, at which point lateral recesses relieve the slot, and when the rod 14 is rotated a projection from its end turns across the end wall of the container 17 and prevents it from tilting as it empties its contents.
Patent GB-986422-A (GB)
Title: Production of cast iron castings
Inventor: NEU MAX GERHARD
IPC: B22D18/06
Filed: 1961-05-02
Abstract: 986,422. Casting processes. FOSECO INTERNATIONAL Ltd. April 25, 1962 [May 2, 1961], No. 15922/61. Heading B3F. When casting cast iron there is located in the mould cavity a small quantity of an organic carbocyclic substance which contains in its molecule only C and H or C, H, and O, which volatilizes at the temperature of the melt and fills the mould with vapours of a non-oxidizing character. The substance may be in pellet, tablet or powder form. Examples are camphor and wholly hydrocarbon materials which contain an aromatic carbocyclic ring such as naphthalene, phenanthrene, anthracene, biphenylene, naphthacene, rubrene, pentacene, heptacene, pyrene and perylene.
Patent GB-1342865-A (GB)
Title: Lacquer binders
IPC: C09D5/44
Filed: 1972-04-06
Abstract: 1342865 Polybutadiene derivatives BAYER AG 6 April 1972 [7 April 1971] 15956/72 Heading C3P [Also in Division C7] Polybutadiene derivatives are obtained by reacting together, simultaneously or in stages at 180-270‹ C. in the absence of air, (i) 85-10 wt. per cent of a polybutadiene oil having a viscosity of 3-100 poise at 20‹ C., (ii) 10-70 wt. per cent of unsaturated fatty acid ester, e.g. soya oil, and (iii) 5-20 wt. per cent of maleic anhydride. The products may be reacted with a further monomer, e.g. styrene, and may be hydrolysed and neutralized, preferably to a degree of 40-70%. In the example, polybutadiene oil is first reacted with soya oil, the product then reacted with maleic anhydride in the presence of copper naphthenate, this product then reacted with styrene, arid this product then hydrolysed and neutralized with triethylamine. The final product is mixed with ethylene glycol monobutyl ether, water and carbon black to form an aqueous lacquer for use in electrodeposition.
Patent GB-454214-A (GB)
Title: Improvements in and relating to electric welding apparatus
IPC: B23K9/073
Filed: 1936-06-08
Abstract: 454,214. Supply systems for welding-arcs. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 8, 1936, No. 15999. Convention date, June 8, 1935. [Class 38 (iv)] Current is supplied to a sheathed arc welding rod electrode 1 through a series resistance 10, the value of which is varied as the resistance of the electrode varies with burning, so as to maintain constant voltage drop during welding. The resistance 10 and the electrode 1 move together, the resistance being in slidable contact with the connection 13 to the source, the work 5 being also connected to the source. Relay 8 controls the length of the arc 7. The rod 10 may be made of varying cross-section or of varying conductivity at different points in its length to compensate for variation in the resistances of the electrode due to heating. In a modification, the movable resistance 10 is replaced by a fixed resistance with a movable contact.