baber/WOPTO huggingface dataset:
Patent GB-366079-A (GB)
Title: Improvements in aircraft
IPC: B64C3/18
Filed: 1930-08-25
Abstract: 366,079. Aircraft wing structures. MESSERSCHMITT, W., 118A, Haunstetterstrasse, Augsburg, Germany. Aug. 25, 1930, No. 25289. Convention date, Aug. 23, 1929. [Class 4.] An aircraft structure comprises a single main spar and leading and trailing members substantially devoid of longitudinal strength but of considerable lateral rigidity detachably connected to the spar at its flanges alone. As applied to a wing, front and rear girders d, e, Fig. 1, are bolted to plates b attached to flanges of spar a. A releasable connection may be provided at f. Separate longitudinally extending strips g may be placed under each row of nuts or broad strips, Fig. 3, serving for two adjacent rows may be fitted. In a modification every third rib may be connected to. the spar web by angle-pieces i. Hinges may be employed instead of bolts. Manholes may be provided in the covering where required. The bolts are secured by screwing or welding to prevent their dropping on to the wing. Specification 315,793, [Class 4, Aeronautics], is referred to.
Patent GB-855581-A (GB)
Title: Improvements relating to guttering
Inventor: HARVEY GORDON COLUMBA
IPC: E04D13/04
Filed: 1958-08-07
Abstract: 855,581. Gutters. HARVEY & CO. (LONDON) Ltd., G. A. Aug. 6, 1959 [Aug. 7, 1958], No. 25315/58. Class 20(4) A gutter outlet member 1 has a downwardly directed tubular spigot 3 adapted for engagement in the upper end of a downpipe, said spigot being extended upwardly at 32 into the trough of the gutter outlet and being provided in the sides thereof with apertures 4 through which water can flow whilst obstructions are prevented from passing through into the downpipe. An open upper end of the spigot allows the flow of water to continue even if all the apertures 4 become blocked.
Patent GB-1393944-A (GB)
Title: Electric motor control
IPC: G11B15/48
Filed: 1972-05-31
Abstract: 1393944 Automatic control of speed and stopping distance INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [24 June 1971] 25354/72 Heading G3N  A motor is made to automatically follow a desired velocity/distance decelerating characteristic by comparing the actual speed determined by gating a counter with tachometer pulses with the desired speed represented by a counter reading at points during the characteristic and controlling the motor to obtain the desired characteristic. In the system described the motor drives an analogue or digital tachometer (velocity sensor 12) which is used under normal running conditions to provide a speed feedback signal through link 21 to control the motor energizing means 11 to obtain the  required speed. On the application of a 'stop' command the comparison means 16 is enabled and the link 21 disabled. Comparator 16 receives three signals, a speed signal from velocity sensor 12, a distance signal, obtained by integrating a velocity signal, on line 19 and a reference signal on line 20. Network 25 stores a speed/distance curve for the ideal stopping state and values from this curve are used as the reference for the control system. The values are chosen to relate to specific pulses i.e. to a particular distance after the stop signal has been applied as shown on the curve in Fig. 11. At each pulse position a counting arrangement using a 2 MHz oscillator is reset and when the next pulse arrives the count stored is compared with the desired count. If an error signal results from this error signal the connection pattern of the motor is changed to increase or reduce braking so that the motor has the correct speed at the next check point. The motor is connected in a normal transistor bridge arrangement. The system is specifically used to ensure controlled stopping between the blocks of data stored on magnetic tape.
Patent GB-829759-A (GB)
Title: Improvements in ophthalmological apparatus for checking up the vision of a patient and especially to perimeters
IPC: A61B3/024
Filed: 1957-08-12
Abstract: 829,759. Sight-testing apparatus. JAYLE, G. J. E. Aug. 12, 1957 [Aug. 29, 1956], No. 25414/57 Class 97(1) An opthalmological apparatus comprises a dome shaped member of approximately spherical inner surface at the centre of curvature of which the patients eye is located, and light t projecting means for forming a light spot at any point on the surface; and characterized in that the dome shaped member is journalled to rotate about its central axis and movably carries the light projecting means which may be actuated to displace the light spot along a great circle passing through the axis of the dome shaped member. As shown, the dome shaped member 1 is journalled in the apparatus frame about an axis 2 for rotation by means of pulley 5. A beam projector 3 carried by the member 1 has its field element pivotally mounted and actuated by an electric motor 10 in conjunction with bevel wheels 11 to move the projected spot along a great circle passing through O. To enable an observer to follow the movements of the spot on the inner surface of the dome shaped member, a frosted glass table 13 mounted on the frame with central O, has a second spot projector 14 mounted below it in an annular member 15 rotatable about an axis perpendicular to the plate 13 and mounted on a pulley 16 connected to the pulley 5 by cord 17 such that the light projector 14 and the dome shaped member 1 rotate together. Furthermore, the projector 14 is rotatably mounted on a horizontal rod along a diameter of the annular container 15 operatively connected with the projector 3 such that movement of the light beam across a great circle due to the first projecting device 3 is accompanied by rotation of the second projecting device 14 about a horizontal axis and consequently movement of the spot of light across a diameter of the frosted glass plate 13.
Patent GB-623533-A (GB)
Title: Improvements relating to centrifugal governors
IPC: G05D13/08
Filed: 1946-04-17
Abstract: 623,533. Centrifugal governors. FRENKEL, M. S. April 17, 1946, No. 25431/48. Divided out of 623,445. [Class 57]. In a centrifugal governor in which balls 15 rotated about the governor shaft 16 are disposed between and in contact with two members 17, 22 and are capable of motion in planes containing the governor spindle axis, the balls having a rolling motion on one of the members, one, 22 of which is capable of axial motion to form the governor sleeve, a secondary centrifugal body 19 is disposed between each ball 15 and the spindle 16, rotates with the spindle and contacts the ball at or around the point 21 where the axis of the rolling motion intersects the surface of the ball to exert an outwardly directed force on the ball along that axis. The secondary body moves radially outwards, maintaining contact with the ball as the speed increases, and may be mounted on ball bearings either on a spindle 20 or in a tubular arm. The member 17 is incapable of axial movement and the moving member comprises a lower part 23 rotating with the governor shaft 16 and carrying freely through ball bearings 38 the upper conical part supporting the governor balls 15. The fixed member 17 may be flat or conical.
Patent GB-462690-A (GB)
Title: Manufacture of copper-containing monoazo dyestuffs
IPC: C09B45/18
Filed: 1935-09-13
Abstract: Copper-containing azo dyes are made by treating with a copper salt in aqueous medium, mono-azo dyes of the formula <FORM:0462690/IV/1> where Ar=a benzene residue having a hydroxy or carboxy group in o-position to the azo group, and which may carry as further substituents chlorine, nitro or sulphonic groups.  They dye cotton and viscose in red brown to violet shades.  In the examples, copper compounds of dyes from the following diazo components are described: 2-aminobenzoic acid, 4 : 5-dichloro-2-aminobenzoic acid, 4-nitro-2-aminophenol, 4-chloro-2-aminophenol, 6-chloro-2-aminophenol-4-sulphonic acid; o-aminophenol, nitro- and chlornitro-2-aminophenol sulphonic acids are also mentioned. Copper sulphate, copper acetate and cuprammonium solutions are specified as coppering agents.  Specifications 5895/02, [Class 2], and 12932/15, [Class 2 (iii)], are referred to.
Patent GB-593422-A (GB)
Title: Improved frames or trusses for structures such as roofs of buildings or cloches and cold frames
IPC: E04C3/17
Filed: 1944-12-19
Abstract: 593,422. Roof trusses; horticultural frames. SMITH, P. A., and CUNNINGHAM, A. D. Dec. 19, 1944, No. 25484. [Classes 20(i), 20(ii) and 20(iv)] Relates to trusses for the roof of buildings and cloches or cold frames and consists in a triangular frame comprising three separable members a, band c held together by a bolt d tensioned between the apex and the transverse member c, abutments h on the side members a, b engaging the transverse member to prevent lateral separation. The top of the bolt d may engage wooden or metal abutments e, f on the side members, or it may pass through the apex and engage the upper edges of the side members. The abutments h may be pins or wooden blocks. The abutments e, f and h may all be comprised in an integral strip secured to the side members. A ridge piece may be added, held between the side members, in which case the bolt d may have an eyelet at its upper end to engage hooks secured to the upper ends of the side members. For a cloche, Fig. 9, two trusses are provided, one at each end, joined by a ridge member k. The glass sheets may be held in place by the flashing m.
Patent GB-445270-A (GB)
Title: Improvements relating to controls, air brakes and the like, for aeroplanes
IPC: B64C3/54
Filed: 1934-09-04
Abstract: 445,270. Controlling aircraft. AYRES, W. H., 5, Abbey Road, St. John's Wood, London.-(Ayres, H. P. ; 410, St. Nicholas Street, Montreal, Canada), and TILTMAN, A. H., The Air Port, Portsmouth. Sept. 4, 1934, No. 25493. [Class 4] In an aeroplane in which an aileron 1 is hinged rearwardly of and above its leading edge 5 to a wing-spar 3, a flap 6 is provided hinged forwardly of and below and extending rearwardly of the aileron hinge 2, the flap being arranged to be moved angularly by the aileron. As shown, the flap may also be moved angularly by means of a cable 8 connected to a bracket 7 on the flap and adapted to move the flap downwards against the action of a spring 9 which is connected at one end to the flap and at its other end to the hinge 2 or to a point on the aileron so that in the latter case the flap may be moved by the aileron varying the spring tension. The lift and drag of the wing is increased when the flap is turned into its lowermost position and in this position it may be affected by aileron movements, for example, by passing the cable 8 over pulleys &c. movable with the aileron.
Patent GB-485455-A (GB)
Title: Improvements relating to heat treatment of articles
IPC: H05B6/02
Filed: 1936-09-19
Abstract: 485,455. Surface hardening. DENNEEN, F. S., DUNN, W. C., and MITCHELL, C. N. Sept, 19, 1936, No. 25514. [Class 72] [Also in Groups XI and XXIX] In apparatus for surface-hardening by inductive heating and quenching automatic cam means is provided for closing the heating circuit for a predetermined time. The primary circuit of a transformer 51 feeding the inductor 41 includes a pivoted switch member 43 which is held closed for a predetermined time against the action of a spring by a cam 50 on a shaft 49<1> which carries a second cam 54 operating the quenching valve 42 against the action of a spring through the tappet block 55 and levers 56, 57. Specification 479,968 is referred to.
Patent GB-275924-A (GB)
Title: An improved collapsible case or container for enclosing a receptacle in which, more especially, liquids may be carried
IPC: B65D6/16
Filed: 1926-10-13
Abstract: 275,924. McConnon, J. W. Aug. 10, 1926, [Convention date.]. Tanks.-A collapsable case for enclosing a liquid container comprises top, bottom, side and end plate sections strengthened by external ribs or angle irons secured thereto, other ribs or angle irons being detachably fixed to the first-named ribs and all the ribs or angle-irons projecting beyond the edges of the sections so that they may be detachably secured together to fix the case around the container. As shown the top and bottom sections have longitudinal angle-irons 7 secured thereto and transverse irons 8 bolted thereto, the ends of the irons 7 being bolted to the ends of the irons 13 fixed to the ends and the irons 8 being bolted to the ends of irons 11 fixed to the sides; longitudinal irons 12 bolted to the irons 11 on the sides are bolted to irons 14 detachably fixed to the irons 13 on the ends of the case. The top, bottom and end sections are provided with flanges 3<a> and 2<a> which embrace the end and side and side sections respectively, and Z-irons 15 secured to the upper and lower edges of the side and end sections receive the flanges 3a of the top and bottom sections. The case is lined with felt to protect the enclosed container, and an inlet and outlet opening 18 and a vent 19 having screw-caps are provided to give access to similar opeings in the container. When collapsed the sides and ends and detached angle irons are placed within the top and bottom sections, which are secured together by lugs 16 on some of the flanges 3a being bolted to the other flanges.
Patent GB-833083-A (GB)
Title: Gas-shielded arc welding
IPC: B23K10/02
Filed: 1957-08-14
Abstract: 833,083. Welding by fusion. UNION CARBIDE CORPORATION. Aug. 14, 1957 [Aug. 14, 1956], No. 25694/57. Class 83 (4). In arc-welding with a fusible metal electrode projecting from a gas nozzle and shielded with a stream of gas discharged through the nozzle, the gas stream flows through the nozzle at a Reynolds number in excess of 3000, indicative of turbulent flow, and at a velocity greater than 10 feet per second to constrict and axially stabilize the arc. The current density in the electrode may be high enough to achieve fused metal transfer as a spray of discrete droplets. A bare metal electrode 11, Fig. 2, is fed through a guide tube 12 within a nozzle 13 leaving an annular orifice 14 through which argon flows to shield and constrict the arc. The inner diameter of the nozzle end may be <SP>7</SP>/ 16  or # inch, the external diameter of the tube 12 may be “ inch, the tube end may be up to “ inch from the end of the nozzle and the nozzle may be up to ¢ inch from the work. The torch may be used with <SP>3</SP>/ 32  inch aluminium wire electrode at a direct current, reverse polarity, of 300 amps with argon supplied at 50 cu. ft. per hour to weld aluminium plate. Direct current straight polarity or alternating current may be used. The arc may oscillate at 360-12,000 cycles per sec. to give a high-pitched whistling sound. Electrodes wires of steel, stainless steel or silicon bronze may be used as may be argon with an oxygen addition, argon-helium mixtures and CO 2 .
Patent GB-340547-A (GB)
Title: Improvements in cleaning devices for boiler furnaces
IPC: F23J3/02
Filed: 1929-08-23
Abstract: 340,547. Cleaning steam generators. McCLELLAND, N. E., 175, Fifth Avenue, New York, U.S.A. Aug. 23, 1929, No. 25731. [Class 99 (ii).] A steam generator is cleaned by disposing blower tubes 21 .. 26, Figs. 1 and 2, progressively along the path of travel of the furnace gases, closely adjacent to and transversely of the boiler tubes 15, and providing means for supplying blowing and cooling mediums, such as steam and air respectively, alternately to the blower tubes. The latter, which may be mounted to rotate, are preferably made of chrome-nickel steel and are provided with nozzles disposed in circumferential rows. Blowing steam is supplied to the blowers from a pipe 35 which communicates with a distributing manifold 36, the latter being provided with a connection 38 leading to the blower 26 and connections 40, 42, 44, 46 and risers 41, 43, 45, 47 leading to the blowers 22, 23, 24, 25. Each of the connections 38, 40 .. locates a screw-down control valve 53 and is provided with a Y-piece 50, one branch of which leads direct to the corresponding blower and the other to a check valve 51 discharging into a manifold 52 communicating by a riser 39 with the blower 21 which is disposed in the last pass of the boiler. The cooling air is supplied from a trunk 55, and is led therefrom by a pipe 56 which communicates with the blower supply connections above the valves 53 and is fitted with valves 57, 58, 59, 60, 62 as shown. In operation and assuming that cooling air is being admitted to all the blowers, in which case the valves 57, 58 .. are open and the valves 53 closed, and that cleaning is to be effected, the valves 57, 58 are closed and the valve 53 in the connection 40 opened to admit steam through the riser 41 to the blower 22, and also through the valve 51, manifold 52 and riser 39 to the blower 21. When the blower 22 has operated for a sufficient period the valve 53 in the connection 40 is closed and the valve 57 opened, whereupon the valve 59 is closed and the valve 53 in the connection 42 opened to put the bloweer 23 into operation. As before, steam will also be supplied to the blower 21. The other blowers are operated in a like manner, and the blower 21, which has an accelerating influence upon the draught, will function whenever any of the other blowers function. The steam valves 53 and air valves 57, 58 .. may be interlocked so as to facilitate the opening and closing of these valves in their proper sequence. In a modification, Fig. 3, the supply of steam from the pipe 35 to the manifold 36 is controlled by a valve 70, and the blower 21 is connected directly by a riser 72 to the manifold at a point adjacent to this valve. In a further modification the air supply pipe 56 is connected directly to the manifold between the valve 70 and the riser 72, and the ordinary valves 53 replaced by three-way valves. In another arrangement the blowers are grouped in pairs, the operation of each group being controlled by a single valve. Specifications 279,991 and 285,855, [both in Class 99 (ii), Pipes, tubes, &c.], are referred to.
Patent GB-915803-A (GB)
Title: Improvements relating to the production of regenerated cellulose filaments
Inventor: SMITH JOHN OLIVER
IPC: D01F2/06
Filed: 1958-08-12
Abstract: Regenerated cellulose filaments are made by extruding viscose having a cellulose content of 4-6% and a caustic soda content approximately half that of the cellulose, the cellulose having an average degree of polymerization of at least 300 and the viscose having a salt figure of at least 10 and a ball-fall viscosity of 50-200secs., into a coagulating bath at 20 DEG -30 DEG C. containing 2,0-3,5% by weight sulphuric acid, less than 15% by weight anhydrous sodium sulphate and not more than 0,02% by weight anhydrous zinc sulphate as an impurity, limiting the length of the immersion path so that the filaments may be stretched by at least 80% of their original length on emerging from the bath, stretching the filaments by at least 80% in air immediately after they have emerged from the bath and subsequently completing the regeneration of the filaments.  Preferably the salt figure of the viscose is at least 13 and the ball-fall viscosity 100-200, the coagulating bath containing 1-10% anhydrous sodium sulphate.  Filaments having deniers up to 4,5 may be made using an immersion path of not more than 6 inches, and filaments having deniers up to 3 using an immersion path of not more than 3 inches. Regeneration may be effected in a warm dilute (e.g. 2% by weight) sulphuric acid bath at 60 DEG C.  Filaments so made show a high ratio of wet-to-dry tenacity, low extensibility, no skin-core differentiation and low water imbibition.
Patent GB-408149-A (GB)
Title: Pyrophoric torch-type pocket lighter
IPC: F23Q2/14
Filed: 1933-09-19
Abstract: 408,149. Frictional pocket igniters. MARKSTEIN, R. P., 53, Lainzerstrasse, Vienna. Sept. 19, 1933, No. 25869. Convention date, Sept. 19, 1932. [Class 75 (iii).] In an igniter comprising a flat fuel container 1 having a removable wick torch 3 of rectangular section adapted to be ignited by rubbing against a pyrophoric surface on the outside of the container, the torch is provided with a row of steel striking pins 5 and air inlets 7. The thickness of the torch is equal to that of an ordinary wooden match and the thickness of the container is not greater than that of the torch plus about twice the thickness of the container wall. The container 1 is provided with a guide 8 for the torch and sliding lids 2 for inserting cotton wool. The base 4 of the torch is filled also with cotton wool and is shaped to complete the square or other form of the igniter when inserted in the container.
Patent GB-887377-A (GB)
Title: A method for the polymerisation of a vinyl ester
IPC: C08F118/08
Filed: 1960-04-05
Abstract: 887,377. Vinyl ester polymerization. KURASHIKI RAYON KABUSHIKI KAISHA. April 5, 1960 [Dec. 15, 1959], No. 25902/61. Divided out of 887,376. Class 2(6) A vinyl ester is polymerized in a medium comprising a carboxylic acid anhydride having a dipole moment above 2À5. The anhydride may be acetic anhydride, the catalyst may be azo-bis-isobutyronitrile and the vinyl ester may be vinyl acetate or butyrate. The polyvinyl ester may be hydrolized to polyvinyl alcohol using methanolic alkali.
Patent GB-502621-A (GB)
Title: Improvements relating to arrangements for remotely controlling electric motors
IPC: G05D3/14
Filed: 1937-09-24
Abstract: 502,621. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd (Allgemeine Elektricitõts Ges.) Sept. 24 1937, No. 25963. [Class 40 (i)] In a system for controlling a distant object, e.g. a gun, by a Ward-Leonard motor control system 36, 37 the excitation of the generator 37 is controlled by the output of a discharge tube 23 the grid voltage of which is controlled by a follow-up switch operated by a transmitter, e.g. a telescope. The grid is biassed by an A.C. source 21 in scries with a D.C. source 101, the A.C. bias being 90‹ out of phase with the anode supply. The follow-up switch comprises a disc 1 carrying contact segments 2, 3, Fig. 2, interconnected by a resistance 4 and co-operating with a contact arm 12 connected to the grid of the valve 23. Batteries 6, 7 are connected to the mid-point of the resistance 4 and apply negative and positive potential to the segments 2, 3 respectively. Normally, the valve is biassed to produce an output current which generates a neutralizing field for the field 38 but operation of the telescope produces a positive or negative variation of the bias according to the direction of rotation and a corresponding rotation of the motor 36 which directly or through a selsyn type transmission 32, 18 operates the contact arm 12 until balance is restored. A plurality of units 36, 32 may be operated in parallel, the transmitters 32 operating a common followup receiver 18, In this arrangement, a D.C. generator driven by an independent receiver connected to the transmitters, is connected in the grid circuit of the valve 23 so as to compensate for drops in speed caused by inter mittent loading of one or more of the motors 36 due say to the firing of the guns. Moreover, tho receiver 18 may also be driven by a D.C. motor connected directly to the output of the generator 37. Specifications 10275/01, [Class38 (v)], and 1901/12, [Class 38 (iii)], are referred to.
Patent GB-809594-A (GB)
Title: Improvements in or relating to spectacle frames
Inventor: ROOT ARTHUR OWEN
IPC: G02C1/02
Filed: 1954-09-08
Abstract: 809,594. Spectacle frames. JAMESON Ltd., W. Sept. 8, 1955 [Sept. 8, 1954], No. 26031/54. Class 97(1) In a frame comprising a pair of lower bars 10 to each of which is hingedly connected one of the temples, the lower bars being connected at their nasal ends to a nose-bridge from which they are separable, the nose-bridge 16 is formed of metal and its ends are inserted in slots 13 in the nasal ends 17 of the brow bars 10 the parts being secured together by screws passing through the backs of the brow bars into tapped holes 19 in the nosebridge. The bridge may have pegs 18 entering holes 15 in the bars 10 and may carry nose pads 23 and lens straps 24. Specification 760,625 is referred to.