baber/WOPTO huggingface dataset:
Patent GB-238050-A (GB)
Title: Improvements in aircraft landing mechanism
IPC: B64F1/02
Filed: 1924-07-01
Abstract: 238,050. Pratt, H. C. July 1, 1924. Landing-places.-To enable an aircraft to alight in a restricted space, a catch, adapted to engage a stationary retarding-device, is provided on the aircraft to transmit the retarding force to the rear of the centre of gravity and approximately in the line of flight. Fig. 2 shows an aeroplane having a lever B pivoted at its rear end beneath the fuselage and adapted to be lowered at an angle by means of a winch F to enable it to guide a cable C on the landing-place on to its hooked rear end D. The cable C is supported horizontally on supports S. which may themselves be resilient, and the ends are wound upon spring drums T. The pull of the cable C on the hook D raises the lever B to its initial position in which it is normally retained by a catch L. A wheel at the forward end of the lever B enables it to mount small obstructions on the landing place. A modification is described in which a lever is universally jointed beneath the rear end of the fuselage and has a hook at its outer end, the lever being lowered to trail below the aircraft when it is about to land. Fig. 5 shows another modification in which a hook D' is carried on a cable G passed between guide rollers R and wound upon a spring drum H in the fuselage. The hook is normally held by spring clips within the forked end of a lever B' pivoted on the wheel axle P<1> and normally held up against the fuselage by an elastic cord or bv a spring at its pivot. When lowered by cords E<1> into the position shown in full lines the hook D is in a position to engage the cable on the landing-place, and upon engagement the hook is withdrawn from the clips on the lever B and the cable G is unwound from the drum H. Sighting devices may be provided on the landing-place to enable the pilot to determine when he is at the correct height for the hook to engage the cable. Ratchet devices may be provided on the drums T to prevent the aircraft from being pulled backwards after it comes to rest.
Patent GB-120102-A (GB)
Title: Improvements in or relating to Means for Establishing Communication with Sunken Submarine Vessels.
Inventor: DAVIS ROBERT HENRY
IPC: B63G8/40
Filed: 1917-10-31
Abstract: 120,102. Davis, R. H. Oct. 31, 1917. Air locks; diving-chambers. - Communication with sunken submarines is established by a diving- bell g in conjunction with an air lock a and means for varying the pressure in the air lock. The air lock may be a separate part attachable inside or outside the conning-tower d of the submarine e, or to any suitable part of the submarine, or secured to the diving-bell; further, the conning- tower may constitute the air lock. For submarines not lying on an even keel, a curved or angled air-lock chamber may be used. Openings other than the conning-tower may be provided for attachment of the air lock; or the latter mav be first fixed to the submarine and an aperture then cut in the latter, as by oxy-acetylene apparatus. The air-lock chamber may be made in sections. The pressure in the air lock may be controlled by valves h, h<1> or by a pump in the diving- bell, or at the surface, or from cylinders of compressed air in the diving-bell or submarine. The Specification also states that if the pressure in the submarine is equal to or greater than that of the surrounding water, access may be had by lower ing a diving-bell over the conning-tower.
Patent GB-612567-A (GB)
Title: Improvements in grinding wheel truing mechanism
IPC: B24B53/08
Filed: 1946-05-27
Abstract: 612,567. Trueing grinding-wheels. JONES & LAMSON MACHINE CO. May 27, 1946, No. 16074. Convention date, May 23, 1945. [Class 60] Grinding-wheel trueing mechanism comprises a tool 6 carried by a stem 5 secured to a slide 8 movable longitudinally of the tool on a second slide 11 movable transversely on a support 14 by means of a rocking member 21 mounted in bearings 22, 23, and actuated by screw and nut mechanism 31, 30. The member 21 carries a slidable stem 38 engaging a roller 42 on a lever 44 fulcrummed in the member, the other end of the lever carrying a roller 47 engaging an upstanding part 48 of the slide 8 which is urged forwardly by a tension spring 50. As the member is rocked, a cam follower 39 on the stem is moved across the face of a stationary cam 40 and the slide 8 is moved in and out to generate the required profile on the grinding wheel 2. The operative connection between the member 21 and slide 11 consists of a block 18 rotatable on a pin 19 and movable vertically in guides formed on the slide. A similar connection is provided between the nut 30 and member 21. The slides 8 and 11 are mounted on pre-loaded ball-bearings 9 and 15. The mechanism is housed in a casing 1, and the stem 5 projects through a slot 4 in a wall 3 of the casing. A flexible diaphragm 7 is provided to prevent ingress of dust. The screw 31 may be rotated in alternate directions by mechanism as described in Specifioation 548,351.
Patent GB-1163874-A (GB)
Title: Frequency Stabilised Laser
Inventor: BRIDGES WILLIAM BRUCE
IPC: H01S3/139
Filed: 1968-04-04
Abstract: 1,163,874. Lasers. HUGHES AIRCRAFT CO. 4 April, 1968 [9 May, 1967], No. 16261/68. Heading H1C. In a laser oscillator in which the output frequency is determined by the spacing between a fixed resonator mirror 15 and an axiallydisplaceable mirror 13, Fig. 1, the output frequency is maintained constant by dividing the laser output into two portions 17a, 17b which are passed in opposite directions through a line-shifting absorption cell 27, the two portions being detected, after line shifting, by respective detectors 31, 33 which are coupled to a subtractor unit 47. A D.C. error signal is produced by the subtractor and used to adjust the axial position of mirror 13 when the output frequency deviates from a chosen value. As shown, the laser output is divided and transmitted in opposite directions through the absorption cell by half transmitting mirrors 23, 25, 29, while the absorption cell has a line shifting Doppler effect caused by ion drift from an anode 55 to a cathode 57. When the laser output frequency is central to the mutually displaced absorption/frequency characteristics for the two directions of transmission through the cell 27, Fig. 2a (not shown), the amplitudes of the output portions 17a, 17b detected by detectors 31, 33 are equal. If the output frequency deviates from the central value, the respective amplitudes of the output portions differ and a D.C. error signal is applied from the subtracter to a transducer 19 controlling mirror 13. A Zeeman type line shifting cell 27 may alternatively be used, Fig. 3 (not shown), and Fig. 5, in which case the output of the laser oscillator is circularly polarised by a quarter wave plate 101. In Fig. 5 two half transmitting mirrors 183, 187 are used, the arrangement being balanced or made frequency selective by the use of an optical or electrical alternating element 185, 189. A laser oscillator providing outputs 141a, 141b at both ends is used in Fig. 4, the optical system requiring fully reflective mirrors 155, 159 and half transmitting mirrors 25, 29.
Patent GB-853224-A (GB)
Title: Improvements in electric torches
Inventor: LEGGETT ERNEST WALTER
IPC: F21L4/00
Filed: 1957-05-22
Abstract: 853,224. Electric battery lamps. STADIUM Ltd. May 22, 1958 [May 22, 1957], No. 16262/57. Class 39(2). An electric torch has a one-piece rubber casing 2 with an integral end cap enclosing a metal inner assembly 6 including a wire handle 10 pivoted to the circumference of the reflector 8 so as to be against the reflector and be moved into a position in which it can be grasped for withdrawing the inner assembly e.g. for removal of the batteries. The casing is closed by a transparent disc held in place by an annular lip 14 on the casing 2.
Patent GB-687186-A (GB)
Title: Improvements in or relating to warp selecting and separating apparatus
IPC: D03J1/14
Filed: 1947-11-27
Abstract: 687,186. Reaching-in machines. WILSDON, B. H., POOLE, E. J., HAINSWORTH, J. E., GIBSON, T. H., and ROBERTS, E. Dec. 29, 1948 [Nov. 27, 1947], No. 16293/51. Divided out of 687,132. Class 142(iv) A reaching - in machine is traversed by a falling weight acting through a cord 3 when permitted by a brake shoe 7 which normally clamps the machine to a stationary tape 5 under the influence of a spring 11a; the brake is released by a solenoid 12 controlled by a feeler 13 as described in the parent Specification.
Patent GB-1465199-A (GB)
Title: Inhalation anaesthesia device
IPC: A61M16/18
Filed: 1974-04-11
Abstract: 1465199 Anaesthesia device A A CONNEL 11 April 1974 [18 April 1973] 16342/74 Heading A5T An inhalation anaesthesia device comprises a chamber 10 having end closures 14, 26, a first partition 19 extending across said chamber in spaced relation to end closure 14, defining therebetween a receiving chamber 55, an inlet (54), Fig. 1, (not shown) to said receiving chamber, a second partition 23 in spaced relation to the other end of said chamber defining a delivery chamber 27 therebetween, a delivery passage 28 from said delivery chamber, a by-pass 31 connecting said receiving and delivery chambers, spaced foraminous absorbent members 37 extending across an elongated vaporizing chamber portion 21 between said partitions, and being capable of absorbing anaesthetic liquid, an inlet passage 20 through said first partition, an outlet passage 29 through said second partition and a valve 25 intercepting said by-pass and one of said passages, operable to regulate the fluid flow through by-pass 31 and passage 29. An air pressure supply, a pump (11), is connected to the inlet (54) of receiving chamber 55 and supplies a constant volume of air, a source of oxygen under pressure being connected to said chamber by oxygen supply tube (53). Valve 25 is enclosed within the second partition 23, and a flap valve 15 communicating with said receiving chamber opens when air, used as the only gaseous medium, is inhaled by the patient or animal. Baffles 41 adjacent members 37 extend partially across said elongated chamber, which is substantially cylindrical, and support members 37. An inlet 38 for liquid anaesthetic communicates with the elongated chamber which is encircled by a thermostatically controlled heater tape 43.
Patent GB-1443857-A (GB)
Title: Pulse generating apparatus
IPC: H03K4/56
Filed: 1974-04-11
Abstract: 1443857 Controlling converters SIEMENS AG 11 April 1974 [13 April 1973] 16349/74 Heading H2F A circuit or generating trains of pulses (e.g. for triggering thyristors in a converter 53) comprises a sawtooth generator 4, 5 feeding an inverting input of a differential amplifier 8 and coupled via a diode 18 to a non-inverting input of amplifier 8 to which a reference signal U st  is also supplied. Differential amplifier 8 also has positive and negative feedback paths 15, 12, 13 such that, starting from each time the instantaneous value of the sawtooth has a predetermined relationship to the reference signal U st , a pulse train is initiated. As described, each sawtooth is generated by charging capacitor 5 via resistor 4 and discharging it by means of a NAND gate 33 controlled by timing pulses at 26, 27. If solder bridges 16, 24, 19 are in position, each time the sawtooth voltage reaches the value of the signal U ts , amplifier 8 oscillates so as to generate a long train of pulses which are fed via a logic circuit 3 to the thyristors in the converter 53. Solder bridge 24 may be interrupted to allow capacitor 22 to shorten the train. Alternatively, if solder bridges 16 and 19 are interrupted, a single long or short pulse (depending on the state of solder bridge 24) is generated at each coincidence. A signal U sp  may inhibit operation. Capacitor 45 ensures that the generation of sawtooth voltages is not effected by commutation disturbances. Sixty degree phase shifted signals applied at 56, 57 can provide 60 degree double pulses where required. Additional stages 1, 2, 3 can be provided for multi-pulse operation.
Patent GB-120273-A (GB)
Title: Improvements in and relating to Film Winding Means for Cameras.
Inventor: JORDAN JOSEPH MILLARD
IPC: G03B17/30
Filed: 1917-11-08
Abstract: 120,273. Jordan, J. M. Nov. 8, 1917. Magazine hand cameras for roll films.-The rotation of the supply spool 10 winds up a spring 14, which acts to rewind the film when a spring- controlled brake member 18 is moved out of engagement with the spool disk 11 by pressing a button 19.
Patent GB-739693-A (GB)
Title: Improvements in and relating to thermo-electric couples
IPC: H01L35/22
Filed: 1954-06-03
Abstract: A molybdenum silicon alloy for a thermocouple contains from 30 to 40 per cent of silicon and may include compounds of silicon with chromium, titanium or tungsten and also oxides of aluminium, titanium, zirconium and thorium, and elements such as carbon, nitrogen and boron.
Patent GB-1030107-A (GB)
Title: Lids for tea-pots, kettles and other suitable vessels
IPC: A47J36/06
Filed: 1964-04-22
Abstract: 1,030,107. Lids for hollow-ware. E. RAYSON. April 13, 1965 [April 22, 1964], No. 16583/64. Heading A4A. A lid, particularly for a vessel containing a hot liquid e.g. a teapot or kettle, comprises flanged outer and inner members 3 secured together by a screw 5 which enters a threaded bore in a finger knob 7, a circular spring wire member 10, having deformations 11, being constrained within the flange 4 so that the deformations pass through apertures in the flange to engage the mouth of the vessel. A heat-resistant washer 8 and steam apertures 12, 13 are provided and in a modification the inner member of the lid is dispensed with and the flange of the outer member is apertured for passage of the deformations 11. The spring member may be star-shaped or housed in a peripheral groove in the flange and the lid may be hinged to the vessel.
Patent GB-877653-A (GB)
Title: Improvements in or relating to friction clutches
Inventor: BLAND ALBERT NORMAN
IPC: F16D13/50
Filed: 1959-05-14
Abstract: 877,653. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. April 11, 1960 [May 14, 1959], No. 16613/59. Class 80 (2). In order to maintain the separation of a driving plate and a driven plate 16 of a friction clutch constant when the clutch is disengaged, irrespective of wear, a ring 27 frictionally engaging an output shaft 20 is mounted in a groove 26 of the driven-plate hub 18 which is splined to the shaft. The rear face of the groove contacts the ring when the clutch is engaged, and as the plates wear the ring is shifted along the output shaft. When the clutch disengages a spring 35, which is too weak to shift the ring, moves the driven disc until the front surface of the groove 26 abuts the ring. In a modification, the groove 26 is formed by a recess in the hub, the front wall of the groove being provided by a stop ring sprung into a groove in the peripheral wall of the recess.
Patent GB-991384-A (GB)
Title: Method and apparatus for storing ozone/oxygen mixtures
Inventor: WALLER JOHN GEORGE
IPC: F17C3/08
Filed: 1963-04-27
Abstract: 991,384. Storing gases. BRITISH OXYGEN CO. Ltd. April 21, 1964 [April 27, 1963], No. 16650/63. Heading F4P. Compressed gaseous ozone/oxygen mixture containing up to 13% by weight of ozone is stored under a pressure of e.g. 15 atmospheres in a pressure vessel 11 maintained at a temperature appreciably below ambient temperature by a block of solid carbon dioxide 23, and is internally covered with a thin coherent coating which is relatively inert to ozone. The coherent coating may be a phosphate, sulphate, borate, silicate or oxide layer produced by subjecting the vessel to a chemical bath, or electrolytic treatment. Alternatively, the coating may be alumina sprayed on to the vessel. The vessel 11 is preferably mado of stainless steel provided with a pocket 12 containing the solid carbon dioxide and possibly an inert liquid of low freezing point such as a fluorinated hydrocarbon. The pocket 12 is closed by an insulated stopper 16. The vessel 11 is contained in an outer container 13 and the space therebetween is evacuated and filled with insulating power. In a second construction a plurality of cylindrical pressure vessels connected together by a manifold are arranged in a circle within a double-walled insulated container, the block of carbon dioxide being inserted in the centre of the circle.
Patent GB-704142-A (GB)
Title: Improved method of, and means for, burnishing the edges of footwear and other leather surfaces
IPC: A43D95/26
Filed: 1950-07-04
Abstract: 704,142. Burnishing. KOHUT, H. June 12, 1951 [July 4, 1950], No. 16651/50. Class 60 [Also in Group VII] In finishing the trimmed edges of leather surfaces, wax is delivered on to the edge as a burnishing tool is applied thereto. This tool proceeds along the edge where the wax has been spread. In one form of apparatus for burnishing shoe sole edges wax is heated in a lagged container 1 and is fed through a rigid valve-controlled duct 12 to a burnishing tool 11 having a profile shaped in accordance with the sole edge 16. A time switch or thermostat is incorporated in the electric heating circuit of the container 1.
Patent GB-167733-A (GB)
Abstract: 167,733. Soc. d'Exploitation des Brevets C. Arnould. Aug. 13, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Mineral and tar oils, extracting and purifying. - Tar or other heavy oils are mixed with about 4 per cent of hydrochloric acid, and the emulsion heated to about 350‹ C. to obtain pitch and light tar or other oils from which benzol, naphthalene, &c. may be obtained by distillation. Or a current of air may be passed through a boiling mixture of the heavy oil and weaker hydrochloric acid. Using the apparatus shown, tar from the pipe 19 and acid from the funnel 17 are mixed in the retort 1 by an agitator 4 and heated to 350‹ C. Vapours condensed in the upper part of the retort collect in the channels 7, 8 and are run off through pipe 20 and allowed to cool to 100‹ C.
Patent GB-596785-A (GB)
Title: Improved method of oxidising fluid material and improvements in manufacture of catalysts therefor
IPC: C01B17/775
Filed: 1944-09-04
Abstract: The catalytic effectiveness of a porous carbon char catalyst is improved by heating at 925 DEG -1000 DEG C., preferably 945 DEG -975 DEG C., under substantially non-oxidising conditions, for 5-25 hours, preferably 10-18 hours.  The materials treated include charcoal formed from sulphite liquor residues, from wood, or from lignite, activated hardwood and coconut charcoals, and hardwood sawdust heated with zinc chloride.  A preliminary partial oxidation of the charcoal may be effected with nitric acid, chromic acid, or ferric sulphate, or by heating in air, e.g., at 200 DEG -450 DEG C. to a weight loss of 10-35 per cent.  The catalyst is used for the oxidation of fluid materials with oxygen: oxygen or air may be bubbled through the carbon suspended in a liquid to be oxidised, diffused through a mass of the carbon into the liquid, or passed cocurrent with the liquid down a tower packed with the carbon. The latter method is used for the oxidation of acidified ferrous sulphate solution to the ferric state, raised temperature and pressure increasing the rate of reaction.  The formation of sulphuric acid from sulphur dioxide, air, and water, the oxidation of tin salts, and of hydroquinone dissolved in methyl ethyl ketone, are also referred to.ALSO:Hydroquinone dissolved in methyl ethyl ketone is oxidized in the presence of a carbon catalyst prepared by heating a porous carbon char at 925-1000 DEG  C. for 5-25 hours under substantially non - oxidizing conditions (see Group III).
Patent GB-950737-A (GB)
Title: Improvements in or relating to methods of, and devices for assembling crystal diodes
IPC: H01J9/32
Filed: 1960-05-12
Abstract: <PICT:0950737/C1/1> <PICT:0950737/C1/2> <PICT:0950737/C1/3> <PICT:0950737/C1/4> In a method of assembling a crystal diode, Fig. 1, an anode portion (1, 3) is held, under the action of an automatically reproducible and automatically applied force P, with its whisker 3 against the semi-conductor crystal 4 of a cathode portion 2, 4, 5, the electrical properties of the contact are tested; and, if the result is favourable, the open end of the glass bulb 5 is sealed to the end of the wire 1 whilst the whisker is held against the crystal by that force.  If the result is unfavourable, the anode portion is raised, rotated about its longitudinal axis and lowered to form a new contact which is tested as before.  A device, Fig. 5, for carrying out this method has sealing heads located along, say, a straight line, Fig. 5, in a circle around which they are moved in synchronism with the motion of parts on guide tracks 42, 43.  Anode and cathode portions are supplied by arms at s and t along paths 48, 49; and completed diodes are removed along paths 50, 51.  A safety device in zone D prevents supply if any sealing head is not emptied. Each sealing head, Fig. 2, comprises tongs 7, which hold the cathode portion, and a holder 6, with a magnetic part 12, for the anode portion.  A slidable rod 16 with a magnetic end 17 is movable vertically to displace the anode portion and is allowed to fall freely in the application of the force.  The end 17 of rod 16 may be replaced by a weight 33, Fig. 3, in which a magnetic block is slidable under the action of a compression spring.  An electrical heating coil 14 is movable vertically over the cathode portion. Electrical tests of the contact are made via leads 18, 19, in the adjusting zone A, Fig. 5, of the machine, the two portions being moved together at b, the electrical properties tested at c and readjustment and renewed testing carried out, if necessary, at e, f, g, h, electromagnetic means terminating adjustment when the contact is correct.  If the contact is incorrect at k, the tongs open at m; and the cathode portion is released and falls out of the tongs. Heating coil 14 is energized to seal the diode in zone B and the diode is cooled in zone C before removal at n or r in zone D.
Patent GB-1183666-A (GB)
Title: Reactive Dyes of the Anthraquinone Series
Inventor: FREY WOLFGANG
IPC: C09B62/22
Filed: 1968-04-08
Abstract: 1,183,666. Anthraquinone reactive dyes. SANDOZ Ltd. 8 April, 1968 [21 April, 1967], No. 16841/68. Heading C4P. The invention comprises compounds of the formula where R 1  and R 2  are alkyl or alkoxy of 1-5 carbon atoms, R 3  is H or alkyl or alkoxy of 1-5 carbon atoms, R 4  is H or alkyl of 1-5 carbon atoms which may be substituted, X is H, methyl, chloromethyl or dichloromethyl, Hal is halogen and ring A may bear 1 or 2 Cl, Br or F atoms in the 6 and/or 7 positions or a sulphonic acid group in one of the positions 5, 6, 7, 8. The compounds are prepared by reacting a compound of the formula with a functional derivative, e.g. a halide, of a compound of the formula
Patent GB-836501-A (GB)
Title: Rotor blade construction and retention fitting therefor
IPC: B29C70/46
Filed: 1958-05-27
Abstract: 836,501. Moulding helicopter rotor blades &c. PARSONS CORPORATION. May 27, 1958 [May 27, 1957(2)], No. 16863/58. Class 87(2). [Also in Group XXXIII] A rotor blade (see Group XXXIII) is formed by placing preformed glass fibre-polyester resin members 13, 19, mandrels a, b, c wrapped with glass cloth impregnated with polyester resin, and a skin 27 of the same material, in a mould, curing the resin, and removing the mandrels.