baber/WOPTO huggingface dataset:
Patent GB-510878-A (GB)
Title: Improvements in drawing instruments
IPC: B43L13/22
Filed: 1938-02-07
Abstract: 510,878. Curve-describing instruments. FIRMAN, R. A. Feb. 7, 1938, No. 3762. [Class 97 (iii)] A spline weight a is constructed so that the whole of its mass bears directly on the drawing board and has its undersurface so constructed, e.g. by attaching a friction producing material b, as to have a great resistance to sliding. The spline is resiliently attached to the weight a by a locating member c at the end of a spring loaded shaft d.
Patent GB-492031-A (GB)
Title: Method of and machine for manufacturing fine wires having a reduced diameter portion between the ends
IPC: B21F99/00
Filed: 1937-02-09
Abstract: 492,031. Grinding wires. ECCLESTON, J. H., and HART, H. Feb. 9, 1937. No. 3781. [Class 60] Fine wires having a reduced diameter portion 9 between the ends, and intended for use as electrical fuses. are produced by feeding intermittently a wire 3 from a reel 2 rotated on a horizontal axis, the wire passing through a longitudinally slotted stationary tube 5 to a pair of spaced chucks 6, 7, driven at the same speed respectively by a hollow spindle 15 in the tube 5 and by belting. The wire is fed by an arm 10 oscillated by a cam drive 12, and the reduced portion is ground on the wire between the chucks 6, 7 by a grinding-wheel 8 fed by a cam 14, a finished length of wire being cut off by an abrasive severing wheel 13. The chuck 7 may be replaced by a bearing for the wire.
Patent GB-233774-A (GB)
Title: Improvements in or relating to looms for weaving narrow fabrics and small-ware
IPC: D03D35/00
Filed: 1924-02-14
Abstract: 233,774. Hall & Sons, Bury, Ltd., R., and Hall, O. S. Feb. 14, 1924. Two or more fabrics, looms specially designed for.-In a loom for weaving several fabrics by means of fly shuttles running in superposed races, the warps for each fabric are arranged out of vertical alignment and pass over respective back rests 17, 18 to respective healds 7, 8. The eyes 7a of the healds 7 for the upper fabric are at a higher level than the eyes 8<a> of the healds for the lower fabric. The lay has upper and lower races for upper and lower shuttles, which are both operated by picker sticks 14. Both wefts are beaten up by the reed 5 and the fabrics formed pass through guides 24, 25 over a breast beam &c. 26 to the cloth roller 27, on which they are wound side by side. The healds are operated from tappet-controlled treadles 23.
Patent GB-1433739-A (GB)
Title: Servo-boosters for vehicle brake systems
IPC: B60T13/57
Filed: 1972-11-30
Abstract: 1433739 Servo boosters GIRLING Ltd 19 April 1973 [30 Nov 1972] 3831/75 Divided out of 1433737 Heading F2F The servo booster is identical to that described with respect to Fig. 1 of the parent Specification, but the claims are directed to the fixing of the valve closure member 60 in the valve body 32.
Patent GB-375731-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/08
Filed: 1932-02-09
Abstract: 375,731. Microscopes. LEITZ GES., E., Optical Works, Wetzlar, Germany. Feb. 9, 1932, No. 3835. Convention date, June 20, 1931. [Class 97 (i).] In microscopes comprising a condenser surrounding the objective and a dipping cap enclosing the objective and condenser, mechanism is provided whereby the dipping cap can be set at various definite distances between the objective and the plane of the object. As shown in Fig. 1, the objective A is surrounded by a condenser comprising two annular lenses B, B<1>, the tube D in which the lens B is mounted being threaded into the fixed tube E. A concentric tube D<1> having a handle D<2> is fixed to the tube D. A dipping cap F having a removable front plate F<1> carrying a transparent disc F2 is threaded into the fixed tube G, and a ring H threaded on to the tube G carries a stop H<1> in the path of the pin F<3> attached to the dipping cap F. The position of the stop H<1> can be adjusted by rotation of the ring H, which can be clamped by the screw J. As shown in Fig. 2, the disc F<4>, which may be coloured, is secured on the front plate F<1> of the dipping cap by a threaded ring F<5>.
Patent GB-740027-A (GB)
Title: Process for the gasification of coal-dust
IPC: C10B49/08
Filed: 1954-02-10
Abstract: 740,027. Gasifying coal-dust. DIDIERWERKE AKT.-GES. Feb. 10, 1954 [Feb. 25, 1953], No. 3881/54. Class 55 (1). In a process for the gasification of coal-dust in a stream of a carrier gas, coal-dust is fed by line 2 into the reaction chamber 8 of a gasifier 1 together with a preheated fuel gas free from or poor in hydrocarbons through line 11, e.g. as shown recycled product gas, and preheated air and/or oxygen through line 6, the gases produced' leave by line 4 pass through a dust separator 14 and are recycled by line 10 or withdrawn by line 13; the separated dust from separator 14 passes by line 5 into the reaction chamber 9 of the gasifier, air and/or oxygen being fed in through line 7, the gases produced in this chamber are added to those produced in chamber 8 and liquid slag is withdrawn at 3. Steam may be added to the recycled gas at 22A and the quantity of the gas recycled is sufficient to prevent a harmful amount of soot appearing in the product gases. Separator 14 is also a heat exchanger and heat extracted from the gases at 14 may be used to preheat fuel and steam gas and air and/or oxygen in preheaters 22 and 12 respectively.
Patent GB-862058-A (GB)
Title: Amplifier for recording and playback in a dictating machine and the like
IPC: G11B5/008
Filed: 1958-02-06
Abstract: 862,058. Recording and reproducing apparatus. DICTAPHONE CORPORATION. Feb. 6, 1958 [Feb. 7, 1957], No. 3924/58. Class 40 (4). A record-reproduce amplifier is changed from reproducing to recording by operation of a single switch which connects H.T. to a record amplifier in which an oscillator provides a bias to cut-off the reproduce amplifier. As shown the record amplifier comprises tubes 18, 20, the output of which is applied to magnetic recording head 22 together with the output of Hartley oscillator 26 which gives high-frequency bias. By connecting a capacitor 68 to the H.T. supply from source 52 to the oscillator its output decays slowly when switched off and consequently leaves the recording head with no residual magnetization. H.T. to the record amplifier and oscillator is connected over switch 50 which may be incorporated in the transmit receive handset 16. The output of the Hartley oscillator is rectified at 46 and over resistor 60 and capacitor 69 provides a cut-off bias to the tubes 64 and 66 of the reproduce amplifier. A rectifier 78 in the bias circuit shunts away the positive surge over capacitor 69 when switch 50 is closed. The input tubes 72, 76 of the reproduce amplifier receive the output of the record amplifier which drives them into grid conduction and results in a loss of gain. The input tubes of each amplifier are preferably pentodes with shunt capacitors 92, 94, to reduce radio-frequency pick-up.
Patent GB-923976-A (GB)
Title: Improvements in and relating to air compressors
Inventor: NAIRN JAMES WILLIAM
IPC: F04C23/00
Filed: 1961-02-02
Abstract: 923,976. Rotary compressor plant. JOY-SULLIVAN Ltd. Jan. 17, 1962 [Feb. 2, 1961], No. 3949/61. Class 110 (2). [Also in Group XXIV] The coupling (see Group XXIV) between a two-stage radially-sliding vane air compressor 8 and its prime mover 1 is housed in an air receiver 14 into which the compressed air from the compressor is discharged through a duct 22. The two compressors, arranged one behind the other, as shown, are connected by gears 9, and are preferably oil flooded, the air from the receiver passing through an oil separator 21 to the outlet. Oil is returned to the first stage of the compressor through a duct 23. In Fig. 2 (not shown) the compressor unit is mounted on the chassis members of a wheeled vehicle.
Patent GB-1060061-A (GB)
Title: Post-driving apparatus
IPC: E04H17/26
Filed: 1963-01-31
Abstract: 1,060,061. Pile driving. A. W. SAUNDERS and P. G. SAUNDERS. Jan. 27, 1964 [Jan. 31, 1963], No. 3997/63. Heading E1H.  A post driving apparatus comprises a ram 14 vertically displaceable in guide means, pivoting link arms 10, 7 pivotally attached at one end of the guide means and at the other end to a support body e.g. a tractor and adapted to extend parallel to support the guide means in a vertically directed attitude, a drive shaft 20 rotatable about an axis spatially fixed relative to the guide means, an eccentric member 18 driven by shaft 20 and interacting with ram 14 to cause reciprocation of the ram relative to the guide means, such than on reciprocation, a post under said ram is driven downwardly with an overall descent of the guide means corresponding to that of the post. In operation, the apparatus is lifted about the ends of arms 10, 7 attached to the tractor by hydraulic cylinders (Fig. 3 not shown). A post is placed under ram 14 so that the skirt of the ram surrounds its top end. The pressure in the cylinders is then released and shaft 20 rotated so that wall 15 of ram 14 is intermittently applied to the post. In a modification (Fig. 5 not shown) the reciprocal motion is applied by an eccentric cam situated above the ram on a cross-member. The cam is actuated by an hydraulic motor. In a further modification a chain drive extends from shaft 20 to an eccentric rotatably mounted on channel members 1 so as to reciprocate the ram 14.
Patent GB-679390-A (GB)
Title: Improvements in or relating to electric signalling systems for coded trains of impulses
IPC: G06F7/52
Filed: 1950-02-16
Abstract: 679,390. Electrical calculating-apparatus. SOC D'ELECTRONIQUE ET D'AUTOMATISME. Feb. 16, 1950 [Feb. 17, 1949], No. 4028/50. Class 106 (i). [Also in Group XL (c)] An encoding circuit for use in electric systems for signalling coded trains of electric pulses, comprises a quadripole which, upon application thereto of one or more transient signals of short duration compared with the propagation constant of the quadripole, delivers a pulse train of regular periodicity, each pulse representing a term of a numerical series of the form: (in which B represents a radix), the quadripole including means for adjusting or automatically controlling the amplitudes of the pulses to correspond to the values of the coefficients a of the series. In one embodiment a train of short pulses is applied to the input of a known type of counter 1, Fig. 1, which advances by one stage for each pulse applied and delivers an output pulse from each stage in turn. Impedances 11 such as continuously-variable or tapped resistors, varistors, thermistors, gas-filled or vacuum tubes, or cathode-ray tubes of the multipletarget type, are adjusted or automatically controlled to determine the amplitudes of the respective pulses which are fed to a common conductor 4 and may be applied to the control grid of a valve 7 for re-shaping. In the case where radix B=2 (i.e. the Binary System), the impedances 11 are replaced by on-off switches. In a modification the pulse counter 1 is replaced by an artificial delay line tapped at regular intervals for connection to the parallel impedances. A single input pulse is then sufficient to generate a coded output pulse train, but in this version coded pulse trains can be applied to the input and a multiplication performed. Switching arrangements, Figs. 4 and 5 (not shown), may be used in this modification to avoid disturbances due to reflection or parasitic currents. In another embodiment, the device for setting up the required coefficients a is a binaryscale pulse counter 16, Fig. 6, which may itself be set up by a coded pulse train. The parallel paths from the delay line 10 are connected, via resistors 11, to the control grids of tubes 12, whilst the blocking voltages representing the values of the coefficients a are provided by the device 16, and are applied to the suppressor grids 17. Regenerating pulses are applied to the screen grids, and the output pulses are developed across a load 6. In one modification of this embodiment the delay line 10 is split up into portions which are linked together by connections across the control grids of the tubes, Fig. 7 (not shown). In another modification the delay line is replaced by a simple mechanical, electro-mechanical or electronic step-by-step device which sends out pilot pulses successively to the control grids of the tubes which, in this case, are normally blocked oscillators and are triggered by the pilot pulses from the step-by-step device. French Specification 985,051 is referred to.
Patent GB-370555-A (GB)
Title: Improvements in indicating the character and depth of liquids in containers
IPC: G01F23/16
Filed: 1931-02-09
Abstract: 370,555. Indicating liquid levels. URQUHART, W. J., Union Hotel, Margaret Street, Sydney, Australia. Feb. 9, 1931, No. 4043. [Class 123 (i).] In a liquid level or depth indicator, a column of liquid is transferred from the container to a gauge tube at a higher level, and placed under the same pressure conditions as in the container. An airtight chamber 10 is provided with a handoperated pump 11, and with the gauge 16 is mounted above the liquid container 12. Pipes 14, 13 communicate with the upper and lower parts of the container respectively. The gauge 16 is enlarged and closed at the top, and an inner pipe 17 is connected to one of the ports of a rotary valve 19. Inlet and exhaust valves 25, 26 are provided at the base of the pump. In operation, the valve 19 is set so that the pump draws air and vapour from pipe 17 and delivers it into the container 12. Liquid rises in the gauge 16 to a height greater than the depth in the container 12, and the valve 19 is then set to connect the pipe 17 with the vent pipe 14, pipe 24, down pipe 13, and pressure pipe 27 so that continued. pumping forces liquid out of the pipe 13, maintains a pressure in the chamber 10 equal to the head of liquid displaced from the pipe 13, and supports a similar column of liquid in the gauge 16. The valve 19 may then be turned to allow the liquid to drain from the gauge back to the container 12. Specification 324,365, [Class 123 (i), Liquid-level regulating &c.], is referred to.
Patent GB-1357827-A (GB)
Title: Chair having a tip-up seat
IPC: A47C7/56
Filed: 1972-01-28
Abstract: 1357827 Tip-up seats; tables combined with seats; seats; securing seats in rows ANONIMA CASTELU SAS 28 Jan 1972 [29 May 1971] 4047/72 Heading A4B A4H A4J and A4U A chair comprizes a back rest 3 supported between the longer arms 2a of a pair of spaced V-shaped side supports and a tip-up seat 6 carried between the shorter arms 2b, each V-shaped support having a bottom recess 8 engaged with a supporting cross-beam 9, the end of each shorter arm 2b having an integral domed cap disc 4 to which a detachable frustoconlcal member 5 is fitted to define a casing which houses stops to limit the extent to which the seat 6 tips and means to bias the seat 6 to its raised, inoperative position. Armrests 12a are carried by arms 11a having bottom recesses 8b to engage the cross-beam 9. A table 17 which is stowable beneath the seat 6 is hinged, at 16, about a forwardly extending axis to a bracket 15 which is in turn hinged, at 14, about a transverse horizontal axis to an arm 11a carrying an armrest 12a.
Patent GB-222752-A (GB)
Title: Improvements in or relating to frictional igniting devices
IPC: F23Q2/06
Filed: 1924-02-18
Abstract: 222,752. Taylor, W. J., and Lord, H. C. Feb. 18, 1924. Tobacco pipes.-A hood 26, preferably slotted at its lower edge, for attachment to a pipe bowl, is secured to a cover 20 having a central opening 20a and fitted over annular flanges 18, 19 on a perforated domed plate 17 to form an annular fuel container 21, from which projects a wick burner 22, adapted to be ignited by rotating a friction-wheel 24, mounted in a slot in the plate 17, in contact with a spring- pressed flint.
Patent GB-572960-A (GB)
Title: Improvements relating to the production of zinc
IPC: C22B19/18
Filed: 1943-03-13
Abstract: 572,960. Extracting zinc. NATIONAL SMELTING CO., Ltd., ROBSON, S., WOODS, S. E., and DERHAM, L. J. March 13, 1943, No. 4129. [Class 82 (i)] In a method of producing zinc, the zinc is reduced from its ores or oxides and volatilised in a blast furnace, the gases leaving the furnace are passed through a bed of carbon or refractory material which is supplied with heat from an external source and from which they emerge still containing at least a substantial proportion of their original carbon dioxide content and with their temperature so correlated with the carbon dioxide concentration that zinc oxide is not formed according to the equation Zn+ CO2#ZnO+CO, and the gases are shockchilled before any appreciable oxidation of the zinc vapour takes place. The reduction charge may consist of sintered zinc blende and metallurgical coke, with burnt lime as a flux, and reduction and volatilization are effected in a blast furnace 1 having tuyeres 3, the zinc vapour and gases passing into a coke column 10 which, by means of electrodes 11, 12 is maintained at a temperature between 1050‹ C. and 1150‹ C. so that reduction of carbon dioxide in the furnace gases takes place in the column, the gases passing therefrom up through a tower 17 packed with coke 18 down which is showered molten lead which condenses and dissolves the zinc vapour. The lead passes from the tower by a pipe 20 to a cooling bath 21 where it is returned by a pump 26 again to the top of the tower 17. In the cooling bath 21 zinc crystals come out of solution from the lead at the bottom and float to the top where they melt and provide a layer of molten zinc which is removed from time to time through an outlet 23. Instead of being shock-chilled by passing up through a shower of molten lead, the zinc vapours may be rapidly condensed to liquid zinc by other methods, e.g. by bubbling them through a bath of molten lead or by passing them through a spray or curtain of molten lead, as described in Specification 572,961.
Patent GB-1221925-A (GB)
Title: Electrical plug and socket arrangements
Inventor: SPARROW FREDERICK GORDON
IPC: H01R13/24
Filed: 1967-01-27
Abstract: 1,221,925. Two-part couplings. MIDLAND ELECTRIC MFG. CO. Ltd. 14 March, 1968 [27 Jan., 1967], No. 4144/67. Heading H2E. In a two-part coupling the socket 10 comprises a resilient catch member 20, which is engageable by snap action with the plug 15 and releasable manually, and contact elements 14 on the plug 15 engage spring-loaded contact elements 16 in the socket 10, so that on release of the catch member 20, springs 17 eject the plug 15 from the socket 10. The plug 15 may fit flush into the socket 10 by pivotal action about an undercut shelf (19, Fig. 1, not shown) in the recess 12, and the catch member 20 and coacting part 22 of the plug may act as earthing contacts.
Patent GB-975359-A (GB)
Title: Dyeing,printing and finishing cellulosic textiles
IPC: D06P7/00
Filed: 1961-02-03
Abstract: Cellulosic textile materials are dyed or printed with a reactive dye, e.g. a dyestuff containing a mono- or di-halogeno-2:3:5-triazinyl group or a vinyl sulphone group, and are simultaneously or subsequently impregnated with a solution containing 2-20% by weight of 1 : 3-dimethylol-, or 1 : 3-di(methoxymethyl)-, 4 : 5-dihydroxyimidazolidone-2, in the presence of an acid or acid-reacting catalyst, the so-dyed or-printed and impregnated material being finally dried, and heat-cured at 200 DEG -400 DEG F. for a period of 30-600 seconds, where-by wash- and wear-effects, such as improved crease recovery, dimentional stability and chlorine resistance, are imported to the textile without affecting the light-fastners of the dyeings or prints.  Mechanical effects, such as schreinering, embossing or glazing, may also be imported to the textile, after partial dyeing but before heat-curing.  Examples are given.
Patent GB-1526951-A (GB)
Title: Apparatus for winding filamentary material
IPC: B65H57/22
Filed: 1975-01-30
Abstract: 1526951 Hollow flyer ROTAWINDER Ltd 19 Dec 1975 [30 Jan 1975 24 July 1975] 4186/75 and 31074/75 Heading DID A fly winder comprises a rotatable, axially stationary flyer and a rotationally stationary bobbin support reciprocable towards and away from the flyer along the flyers rotation axis, the hollow flyer having an interior smoothly increasing in diameter along its length, a wire inlet guide being provided at the smaller end of the interior, so that the interior forms a guide for wire introduced through the inlet guide, and a wire guide member being disposed at the greater diameter end of the interior, which end is nearest the bobbin. Flyer 1 having conical wire guiding surface 5 and ceramic wire guides 8, 9, is rotated, via toothed belt 13, by a shaft 15 which also drives clutches 24, 25 selectively operable to rotate pinions 26, 27 in opposite directions to oscillate rack 28 and bobbin 10. The wire runs in a helical path on surface 5. Electrical coils may be wound in the device. The angle between conical surface 5 and its axis may be less than 45‹, e.g. 10‹. Guide member 9, Fig. 4, may comprise ceramic eyelet 91 having belled-out entry and exit sections and a hardened steel wire keeper 92 to restrain axial pulsing of running wire 31. Keeper 92 may be replaced by a cover plate mounted on or integral with an eyelet.
Patent GB-524841-A (GB)
Title: Improvements in or relating to photographic roll film cameras
IPC: G03B19/04
Filed: 1939-02-08
Abstract: 524,841. Photographic cameras combined with telemeters. ZEISS IKON AKT.-GES. Feb. 8, 1939, No. 4206. Convention date, Feb. 8, 1938. [Class 98 (i)] The film rewinding knob 1 is connected to the spindle 2 of the supply spool by gearing located above, laterally of, and below the telemeter base, which may be constituted by a prism 7. The gearing shown comprises wheels 3, 4, 5, and 6 of which 4 and 5 are on a common shaft. 8 is the common view opening of the finder and telemeter. An exposure counter 9, 10 is located in the rewinding knob.
Patent GB-375434-A (GB)
Title: Improvements in strips and the manufacture thereof for the production of welded tubes
IPC: B21C37/083
Filed: 1931-12-11
Abstract: 375,434. Making welded tubes. SCOTTISH IRON & STEEL CO., Ltd., 53, Bothwell Street, Glasgow, and WATERSTON, H. C., Trehearne, Queen Street, Helensburgh, Dumbartonshire. Dec. 11, 1931, No. 4249. [Classes 83 (ii) and 83 (iv).] Angular bending ; piling. -Metal strip for the production of welded tubes by drawing through dies while hot is manufactured from a pile of puddled bar rolled to the breadth and thickness of the strip A and formed during rolling with longitudinal grooves B in one face of the strip for preventing the formation of compression ridges inside the tube during the production of the welded tube. The strip may be curved transversely during rolling and the grooves formed in the convex side, the strip being subsequently flattened.
Patent GB-966284-A (GB)
Title: Electrical capacitors
Inventor: WEST ROBERT ARTHUR
IPC: H01G9/022
Filed: 1963-02-01
Abstract: At least one of the aluminium electrodes of an electrolytic capacitor has a first, dense, anodic oxide layer overlying its surface with a second porous anodic dielectric layer overlying the first and impregnated with a semi-conducting material having a resistivity between 5 x 105 and 3 x 107 ohm/cm.  The double coating may be applied to one or more usually both aluminium electrode foils, and is formed by first anodizing the aluminium in a relatively strong acid e.g. oxalic, phosphoric, chromic or sulphuric in which the anodic film is somewhat soluble, so that a porous film is deposited, then anodizing in a weak acid such as boric to build up the dense film underneath the porous one.  The Specification lists suitable semi-conducting liquids which may be used for impregnating the porous oxide; these include various polyhydric alcohols, sometimes with acid additives to affect the resistivity characteristics, and it is also possible to use hot polyethylene glycol which solidifies at room temperature.  The completed capacitors may be of the wound form using two foils treated as described, or one such electrode may be held as an anode within a container of silver, copper, tantalum, aluminium, lead or other suitable material acting as cathode.