baber/WOPTO huggingface dataset:
Patent GB-802143-A (GB)
Title: Improvements in controls for aircraft gas turbine engines
IPC: F02C9/16
Filed: 1955-04-29
Abstract: 802,143. Gas turbine plant. HOBSON, Ltd., H. M., GREENLAND, L. S., McCOURTY, W. D., and JOHNSON, V. H. Feb. 15, 1956 [April 29, 1955], No. 12528/55. Class 110 (3). [Also in Group XXIX] A unit for controlling the pressure of fuel supplied to an aircraft gas turbine engine comprises servomechanism subject to a spring force adjustable by a pilot's throttle lever and to an opposing force proportional to the delivery pressure at the outlet of a throttle valve for adjusting the position of the latter to maintain the delivery pressure at a value selected by the throttle lever. In an embodiment, the mechanism for adjusting the throttle valve 6 is duplicated so that in the event of failure of the normally acting mechanism the duplicate mechaism takes over and controls the pressure to a slightly higher value. Fuel enters the unit at 2 from a pump, which may be a centrifugal pump driven by an air turbine and may be duplicated as a precaution against failure, and passes the throttle valve 6 to an outlet 3. The throttle valve is actuated by a lever 8 connected at opposite ends to pistons 7, 7A and is normally operated by the piston 7 whilst the piston 7A is held by its loading spring 13A in the position shown. Outlet fuel pressure is transmitted through a passage 16 to the interior of a bellows 15 (or piston) acting on a valve member 12 controlling an escape passage 11 from the righthand side of the piston 7 which is fed with fuel under pressure through a restricted passage 10. The force exerted by the bellows 15 on the valve member 12 is opposed by a spring 14 which is adjusted by.the pilot's throttle lever through a cam 19 and abutment 17. A connection 121 from the passage 16 to a plunger 22 loads the abutment 17 to relieve the pilot of the load of the spring 14. A trimming control comprises a valve member 26 which modifies the pressure in the bellows 15 in accordance with the ram pressure and air temperature at the intake of the engine. Duplicate mechanism associated with the piston 7A comes into operation to actuate the throttle valve 6 in the event of failure of the normal control means, e.g. due to puncturing of the bellows 15. To test the duplicate control mechanism a solenoid operated valve 23 is provided whereby the pilot may relieve the bellows 15 of pressure.
Patent GB-128671-A (GB)
Title: Improvements relating to Observation Apertures for Aircraft.
IPC: B64C1/14
Filed: 1917-08-31
Abstract: 128,671. Bramwell, F. H., and Sunbeam Motor Car Co. Aug. 31, 1917. Cars and cabins.-An observation opening in the base or sides of the fuselage of an aeroplane or other aircraft is fitted with a shutter adapted to close the opening. Fig. 1 shows a shutter arranged under the pilot and comprising a strip of canvas d secured to slats c and connected at one end to endless cables e and fixed at the other end to the fuselage. The shutter is operated by means of a hand-wheel i and chaingearing i.
Patent GB-1430198-A (GB)
Title: Piling
IPC: E02D5/30
Filed: 1973-03-15
Abstract: 1430198 Piles S MERJAN 15 March 1973 [17 March 1972 23 May 1972 6 Nov 1972 10 Oct 1972] 12579/73 Heading E1H A driven pile has a preformed stem 64 and a separately preformed reinforced concrete tip 11 tapered to increase in diameter from the bottom upwards, the taper being less than three inches per foot and the axial height of the tip being at least two feet. The tip has an upper central cavity which receives the lower end of the stem and the cross-sectional area of the upper portion of the tip is more than twice that of the stem which is stressed by pile driving blows transmitted through it to the tip during the driving of the pile. In the embodiment shown the stem is of wooden piling which is driven so that its lower end fits tightly in a metal stub 34 inserted in the cavity. The stem may also be of precast reinforced concrete or may be a pipe prefilled with reinforced concrete.
Patent GB-564188-A (GB)
Title: Improvements in or relating to drafting mechanism for textile materials
IPC: D01H5/64
Filed: 1942-09-07
Abstract: 564,188. Drawing mechanism. DOMINION TEXTILE CO., Ltd. Sept. 7, 1942, No. 12616. Convention date, Sept. 3, 1941. [Class 120 (ii)] Drawing mechanism for a spinning frame &c. comprises a pair of small control rollers arranged behind, and closely adjacent the nip of, the front drawing rollers and a clearer roller for the bottom control roller, the clearer roller bearing against such control roller and the bottom drawing roller behind it and being supported yieldingly against the control roller by a pair of arms supported by a member which is weighted to counterbalance the weight of the arms and of the clearer roller and which is formed in two parts to which the arms are respectively fixed to facilitate removal of the clearer roller. As shown, the clearer roller C, which may be constructed as described in Specification 560,381, is supported in a cradle including arms D, each of which has a hooked bearing portion 35 engaging collar 28 on the roller C and is fixed by a clip 36 to a tube 40 sliclably mounted on a shaft 41 journalled in extensions E of the frame. Each clip carries a counterweight 37 and the two tubes 41 forming the supporting member for the arms have their abutting ends interconnected with play by a slot or keyway 42 so that it is possible to swing down one of the arms D without disturbing the other and to lower one end of the clearer roller without dislodging the other to facilitate the removal thereof. The cradle is adjusted so that the roller C bears heavily against the bottom roller 12 and lightly against the control roller 20. In a modification, the arms extend from a two-part beam having eccentrically positioned channels by which it is mounted on a rod journalled in brackets in the frame ; the parts of the beam are connected with play and the weight of the beam behind the rod counterbalance the weight of the arms and the clearer roller. The Specification as open to inspection under Sect. 91 comprises also a weighting arrangement in which the top rollers 11, 13 are weighted more heavily than usual and the roller 21 is also weighted ; roller diameters and weights are given which, it is stated, result in a form of unusually high tensile strength and even diameter. The control rollers may be of the size of the rollers 12, 13 so long as their centre lines are well within the staple length of the fibres from the nip of the front drawing rollers. This subject-matter does not appear in the Specification as accepted.
Patent GB-751154-A (GB)
Title: Improvements in or relating to the ultrasonic inspection of materials
IPC: G01N29/28
Filed: 1954-04-30
Abstract: 751,154. Ultrasonic inspection devices, SPERRY PRODUCTS, Inc. April 30, 1954 '[July 23, 1953], No. 12675/54. Class 118(2) Ultrasonic scanning is obtained by a method in which the transmitting and receiving transducers remain stationary. An object 10 to be ultrasonically inspected for internal defects, such as a fissure D, is immersed in an acoustic transmitting couplant together with a transmitting transducer 12 and receiving transducer 22 and a delay block 30 inserted between transmitter 12 and the object 10. Transducer 12 is fed with pulses of ultrasonic energy such that it transmits towards the object 10 wave trains of predetermined duration at a repetition frequency of, for example, sixty times per second. The material of the block 30 is such that th acoustic velocity therein is different from the acoustic velocity in the couplant and one surface of the block is provided with a series of steps arranged in vertical columns as shown such that the distance from the transducer 12 to the front of each step varies progressively over the cross-sectional area of the block. The depth t of each step is chosen so that the time required for the wave train to travel the distance t in the block is equal to or greater than the time duration of the wave train. The receiving transducer 22 is connected via an amplifier to the intensifier grid of a cathode ray oscilloscope (Fig. 1, not shown). The sweep generators of the C.R.O. are synchronized with the pulse generator and adjusted such that the vertical sweep corresponds to the difference in the time it takes the wave train to travel from the steps 1 to 8 of one column in the block material and the time to travel a Similar distance in the couplant, and the number of vertical sweeps is correlated with the number of columns A to H. Thus a visual image is obtained on the screen corresponding to the acoustic image received by the transducer 22.
Patent GB-170029-A (GB)
Title: Improvements in or relating to the manufacture of artificial silk
IPC: D01F2/08
Filed: 1920-05-07
Abstract: The precipitating-bath employed in the manufacture of artificial silk from raw viscose consists of sulphuric acid which is at least partly bound to aromatic radicals.  Examples are given of baths containing sodium benzene sulphonate and free sulphuric acid.  The acid mixtures obtained in the direct sulphonation of benzene and its homologues, and of phenol, naphthol and their homologues may be employed.  The bath is particularly adapted for the fine-spinning process described in Specification 166,931.
Patent GB-275913-A (GB)
Title: Improvements in or relating to baths
IPC: A47K1/10
Filed: 1927-05-12
Abstract: 275,913. Hayes, S. May 12, 1927. Baths fitted with lavatory basins. - A wash basin is mounted in a frame b having handle members d which are received in fittings e secured to or integral with the flange of a bath. The bath taps may have extensions h.
Patent GB-1247317-A (GB)
Title: Improvements in containers fitted with closure caps
IPC: B65D41/48
Filed: 1970-03-17
Abstract: 1,247,317. Closure. F.W.F. VON HOHENZOLLERN, [trading as FURSTLICH HOHENZOLLERNSCHE HUTTENVERWALTUNG LAUCHERTHAL]. 17 March, 1970 [6 June, 1969], No. 12821/70. Heading B8T. A closure comprises the neck of a bottle having an inturned rim 6, and a cap 4. The cap has a tear connection 12 which is broken when the top of the cap is removed from the bottle by pressing tab 10 upwards. The cap is so dimensioned that skirt 11 slips down over the neck of the bottle when the tear connection 12 is broken.
Patent GB-831943-A (GB)
Title: Improvements relating to electron discharge devices
Inventor: HAINE MICHAEL EDWARD
IPC: H01J29/66
Filed: 1955-05-03
Abstract: 831,943. Cathode-ray tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 3, 1956 [May 3, 1955], No. 12840/55. Class 39(1). An electron discharge device such as a television camera tube comprises an electron gun 3, 4 adapted to project a beam on to a non- secondary emissive target 2, means 6, 7 for deflecting the beam over the target, a first lens 5 adapted to focus the beam at a point C beyond the target, and a second lens 8 with its principal focus at the effective centre of deflection E, the relation v = u#/u + f being satisfied whereby the beam is focused on the target and impinges substantially normally thereon. The first lens may be magnetic or electrostatic the second lens being preferably an iron shrouded coil having a diameter more than twice that of the scanned area to reduce pin-cushion distortion. The deflecting means may be electrostatic or magnetic.
Patent GB-331024-A (GB)
Title: Machine for varnishing or otherwise painting floors and the like
IPC: B05C17/02
Filed: 1929-04-25
Abstract: 331,024. Caspersen, J. V., and Sigvartsen, C. P. April 25, 1929. No Patent granted (Sealing fee not paid). Coating and damping appliances, hand.-In a machine for painting floors comprising applying rolls and painting rolls, movable pads are arranged in the hollow applying-rolls containing varnish so that the outflow holes therein are alternately closed and opened, whereby the paint is applied to the floor in stripes which are spread by the painting rolls. A cylindrical hollow roll 1, having holes 2 arranged in diametrically opposed groups extending over the whole length of the roll is closed at the, ends by plates 3, 4 having trunnions 6, the reduced ends 5 of which are journaled in a frame 7. The holes 2 in roll 1 are closed from the inner side by spring-controlled curved pads consisting of a heavy plate 17 and a thin flexible plate 18, the intervening space being filled with felt 19. An angular plate 20, 21 is fixed to each pad, the arm 20 gripping with its two flanges 23 and sliding over a transverse bar 22 (Fig. 7). A shaft 26 extending through each journal 5, 6 carries on its outer end a plate 27<a> fixed to the frame 7 and on its inner end an arm 28, the end of which is bent outward and has a concave surface. When the roll is rotated, the concave ends 28 grip teeth 29 on the arms 20, which are moved radially on the transverse bar 22 so that the corresponding pad is moved away from the wall of the roll. In a modified form of the apparatus, Fig. 9, the curved pads are controlled by blade springs 34 guided in holes 35 of a horizontal bar 36 having control studs 37, 38 on the two ends, sliding in bearings 39 and 5, 6 respectively. The end of the stud 38 bears against one arm 42 of a lever 42, 43 mounted on a bracket 40, the other arm 43 extending through an aperture 44 of the side plate 7 and carrying on its end a roller 46 which runs on a circular track 47 fixed on the end plate 3. When the roll is rotated the lever 42, 43 is oscillated by the roller 46 surmounting the projections 48 on the track 47 (Fig. 11) and causes the bar 36 to shift to the right whereby the blade springs 34 bend' and the pads move away from the wall of the roll.
Patent GB-300880-A (GB)
Title: Circular saw guide and steady wheels
IPC: B23D47/00
Filed: 1928-05-02
Abstract: 300,880. Lee, J. H. May 2, 1928. Saw guides.-A circular saw is guided and steadied by pairs of wheels A, B, the top pair A carried by the arm E which supports the riving knife, and the lower pairs B carried by suitable supports below the table. These lower wheels may be omitted. The rims of the wheels are flat or rounded, and may be covered with rubber or fibre.
Patent GB-893531-A (GB)
Title: Force measuring instruments
Inventor: SLATER JOHN M
IPC: G01P15/13
Filed: 1960-04-11
Abstract: 893,531. Measuring electrically. NORTH AMERICAN AVIATION Inc. April 11, 1960, No. 12907/60. Class 40 (1). [Also in Groups XIX and XXXVI] In a force transducer in which the movement of a body axially along a bearing-shaft under the action of the applied force are detected as an indication of the magnitude of the force, the bearing-shaft and the body are relatively rotated to eliminate frictional forces on the axial movement. Three embodiments are described. In one embodiment, Fig. 1, the mass 8 comprises a sleeve 24 which is held against rotation but moves axially in response to acceleration forces along a constantly-driven supporting- spindle, e.g. of graphite-covered glass. In response to the movement, the capacitance between a fixed disc and a disc 27 on the sleeve 24 varies and alters the anode current of a highfrequency oscillator and so the excitation of a coil 25, carried by the sleeve. Coil 25 cooperates with a fixed magnet 20 in such a way as to oppose movement of the mass 8. In a modification, Fig. 5 (not shown), the mass rotates, being formed at one end as the rotor of an induction motor, within a fixed supporting- tube, and comprises magnetized portions cooperating with fixed coils. A capacitive coupling of which alternative forms are described is provided between the control circuit and a capacitance plate carried by the mass. In another modification. Fig. 9, the mass 98 moves axially within a rotating supporting shaft 96 forming the rotor of an induction motor but is held against rotation. Its movements are detected by wire strain gauges in a bridge circuit incorporating a meter. An electrical circuit for use with the embodiments of Figs. 1 and 5 is shown in Fig. 3, and comprises a potentiometer formed by valve 43 and resistor 58, the mid-point 56 of which is normally at earth potential. Variations in capacitance of position-sensing capacitor 27, 28 vary the potential of point 56 relative to earth by changing the squegging frequency and hence the anode current of oscillator valve 43. Variations in the potential of point 56 vary the current through restoring-coil 25 and measuring resistor 55, the potential across which may be indicated as a measure of the acceleration.
Patent GB-516520-A (GB)
Title: Improvements in or relating to the setting of barrelled fasteners
IPC: B21J15/04
Filed: 1938-05-02
Abstract: 516,520. Riveted joints. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Co. de France). May 2, 1938, Nos. 13004/38 and 3919/39. [Class 83 (iv)] [Also in Group VII] To increase the strength of the riveted joint a barrelled fastener 101, after having been deformed at its ends to grip two sheets 103, 105 together, is filled with a plastic composition setting with lapse of time, for example a mixture of celluloid, acetone and aluminium paint, following which a solid metal filling piece 115 is inserted into the barrel of the rivet. A flush surface may be thus produced. An alternative method of increasing the strength against shear is to use concentric rivets, one 127 of stainless steel, and another 147 of aluminium alloy.
Patent GB-1379626-A (GB)
Title: Electrical converters
IPC: H02M7/515
Filed: 1972-03-21
Abstract: 1379626 Inverting NAUCHNO-ISSLEDOVATELSKY ELEKTROTEKHNICHESKY INSTITUT ZAVODA URALELEKTROTYAZHMASH 21 March 1972 13066/72 Heading H2F A DC-AC polyphase converter comprises a  plurality of chains of series-connected capacitors 10, 19; 13, 22; 16, 25, one end of each chain being connected to a respective one of the phase terminals A, B, C, the capacitors being successively charged and then discharged by means of controlled rectifiers 11 ... 27, one end of each chain being connected by means of controlled rectifiers 1 ... 3 to a DC terminal. The invention is applicable to conversion between high voltage DC and lower voltage AC. Commutating reactors 7, commutating capacitors 31, a smoothing choke 9 and inverse diodes 8 are included. Fig. 3 (not shown) depicts partial circuits to show the charge and discharge of the various capacitors, the end thyristors 1 ... 6 being conductive during one third of each period whilst the intermediate thyristors 11 ... 27 are conductive during one sixth of each period. In Figs. 4 ... 6 (not shown) the series-connected chain of thyristors 11 ... 27 are replaced by pairs of lattice-connected thyristors. The invention is applicable to obtaining low power AC from a high voltage DC transmission line or from a DC network for electric transport.
Patent GB-695604-A (GB)
Title: Improvements in composite leather sheets, in particular for shoe soles
IPC: A43B13/00
Filed: 1951-06-01
Abstract: 695,604. Soles for footwear. BELLAVOINE, L. June 1, 1951 [March 2, 1951], No. 13067/51. Class 17 (ii). [Also in Group VIII] A composite leather shoe sole comprises an external leather layer 1, an internal layer 2 of flexible material such as leather, imitation leather, or cardboard, and an intermediate layer 3 of a flexible impermeable material such as rubber or a polyvinyl ester, the composite sheet being provided with perforations 4 extending completely through layers 2 and 3 and only partly through layer 1. Layers 1 and 2 may be obtained by splitting a single leather sheet, layer 1 being the grain side and layer 2 the flesh side, and may be roughened before uniting by an adhesive consisting of rubber latex or an emulsion of polyvinyl chloride or acetate applied to both layers. The adhesive forms the layer 3, or the layer may be a thin sheet of natural or artificial rubber glued or stitched between layers 1 and 2. The holes formed in layer 3 shrink on withdrawal of the perforating points to form holes 7 of capillary dimensions.
Patent GB-131398-A (GB)
IPC: B64F1/02
Abstract: 131,398. Armstrong, Whitworth, & Co., Sir W. G., and Le Mesurier, L. J. June 24, 1918. Anchoring; platforms and stages.- Aeroplanes on landing are arrested and anchored by means of a hook F, Fig. 2, carried on the machine by a strut F<1> and control wire F<2>, engaging a flexible loop B<1> formed on one end of a cable B, Fig. 4, passing over pulleys C, C<1>, the other end of the cable having an eye B<3> engaging the loop B'. Several cables B may be used, and each cable may have several loops and eyes. One pulley may be attached to the piston C<2> of an hydraulic cylinder C<3> so actuated that a pull on the loop B<1> will cause the pulleys C, C' to separate. Resistance is offered to movement of the cable B by a dash-pot H or frictional device, and shock may be absorbed by a spring inserted in the cable B. Each loop B<1> is raised by forked springs D, and the cable is held down by shoes running on guide-rails.
Patent GB-131512-A (GB)
IPC: C01B17/58
Abstract: 131,512. British Dyes, Ltd., Turner, J., and Davidson, W. B. Nov. 1, 1918. Sulphur dioxide is produced by heating waste sulphuric acid with about 10 per cent. of pitch to a temperature of 150-200‹ C. Reference has been directed by the Comptroller to Specification 132,387.
Patent GB-131656-A (GB)
IPC: B64B1/00
Abstract: 131,656. Flower, S. A., and Butt, E. E. W. July 10, 1918. Cars and cabins, suspending. The supporting- cables of the gondolas of air-ships are attached to levers pivoted about adjustable fulcra on the gondolas. Fig. 1 shows cables b<1> - - b4 hung from the main central boom D<1> of the air-ship and connected to the opposite ends of levers E<1>, E<2>, the fulcra K of which may be adjusted by worm and rack-and-pinion gear.
Patent GB-453820-A (GB)
Title: Improvements in or relating to cinematograph cameras
IPC: G03B19/18
Filed: 1936-05-09
Abstract: 453,820. Kinematograph cameras. LEITZ GES., E., Optical Works, Wetzlar, Germany. May 9,1936, No. 13184. Convention date, May 11, 1935. [Class 97 (i)] Means for adjusting the size of the shutter opening, and means for controlling the number of exposures per second, are coupled together so that an adjustment of the one causes such adjustment of the other that the exposure time remains unaltered; the coupling may be adjustable to permit alteration of the exposure time. The shutter may comprise two apertured discs A B carried respectively by concentric spindles C D connected by a pin F<1> projecting from a slidable sleeve F into straight and helical slots D<1>, C<1> respectively formed in the spindles. Adjustment of the effective shutter aperture is produced by movements of the sleeve F accomplished by rotation of a knob K on a spindle J<2> carrying a disc J having a cam groove J<1> engaged by a pin H<3> on a lever H moving a lever G<1> by a pin and slot G<2>, the lever G<1> having at its free end a fork G engaging a flange F<2> on the sleeve F. The number of exposures per second is determined by a brake pad N<2> which engages the disc O<1> of a governor O and is adjustable by rotation of a lever L<2> secured to a sleeve M formed with a cam M<1> engaging the lever N carrying the brake pad. The coupling between the two adjusting means consists of a pin K<2> on the knob K engaging a hole in the lever L<2>. A series of holes may be provided in the lever L<2>, with any of which the pin may be engaged ; alteration of exposure time is effected by changing the hole engaged by the pin K<2>, and is accomplished by pulling the knob K axially against the action of a spring J3 and rotating it relatively to the lever L<2>, the length of the pin K<2> being such that the necessary axial movement does not disengage the pin H<3> from the groove J<1>. Scales on the casing E, respectively readable between the members of a fork K<1> and through a window L<4>, indicate the size of the shutteraperture and the number of exposures per second, and a scale on a flange L projecting from the sleeve M, also readable between the members of the fork K, indicates the exposure time. A modification is described in which the adjusting movements are rectilinear, the shutters are driven by gears engaging their toothed edges, and the governor comprises masses carried by springs and rotating within an internally conical brake drum adjustable along its axis; coupling between the adjusting means is effected by frictional clamps carried by a slidable shutter-adjusting means and movably engaging a rod carrying the brake drum.