baber/WOPTO huggingface dataset:
Patent GB-335345-A (GB)
Title: Improvements in or relating to spectacles, eyeglasses, goggles and the like
IPC: G02C7/08
Filed: 1929-08-27
Abstract: 335,345. Reid, R. C., and Davis, E. Aug. 27, 1929. Spectacles, eye-glasses, and goggles have an auxiliary optical element, such as a lens or a colour or anti-dazzle screen, so attached that it may be moved into or out of a position in which it lies over one half, considered in the vertical direction, of the main optical element. In the form shown in Fig. 2, an auxiliary lens 7, adapted to be used in front of the main lens 8 for reading &c., is mounted in a frame 6, which is pivoted by a joint 5 to the main lens frame 1, the side 3 being pivoted by a joint 4 in rear of the joint 5. A clip 9 may be used to retain the attachment in the out of use position. A similar attachment, with a colour screen or anti-dazzle device, or a distance lens (for use with a near lens), may be fitted for use over the upper part of a main lens. Fig. 7 shows a form with an attachment over each half of the main lens.
Patent GB-1138724-A (GB)
Title: Improvements in or relating to vinyl products and the production thereof
Inventor: ZYLINSKI CHARLES WALTER
IPC: B32B27/00
Filed: 1967-06-06
Abstract: 1,138,724. Embossing. HARTE & CO. Inc. 6 June, 1967 [8 June, 1966], No. 26118/67. Addition to 1,138,723. Heading B6J. In a process as described in Specification 1,138,723, the polyethylene sheet is replaced by polypropylene, polystyrene, tetrafluoroethylene, polyacetals, polyacrylin, polycarbonates, polyethylene terephthalate, or bis (chloromethyl) oxetane.
Patent GB-687200-A (GB)
Title: Improvements relating to the manufacture of photo-electric devices
Inventor: SOMMER ALFRED
IPC: H01J40/06
Filed: 1949-10-12
Abstract: 687,200. Electrode materials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 26, 1950 [Oct. 12, 1949], No. 26158/49. Class 39(i) A method of making a photo-electric device includes the steps of providing a silver layer on a bismuth layer, providing a layer of alkali metal (preferably caesium) on the silver layer, and oxidising the alkali metal layer to the extent required for producing the desired light sensitivity. The method may be applied to making the cathode of a photo-cell or the mosaic of a television pick-up tube. Specifications 532,259 and 540,739 are referred to.
Patent GB-843655-A (GB)
Title: Improvements in or relating to aircraft engine installations
Inventor: KERRY THOMAS HENRY
IPC: B64D27/02
Filed: 1957-08-19
Abstract: 843,655. Engine mountings for aircraft. ROLLS-ROYCE Ltd. Aug. 15, 1958 [Aug. 19, 1957], No. 26181/57. Class 4. A mounting by which at least a pair of jet propulsion engines may be mounted at the tip of an aircraft wing 12 or the end of an aerofoil section strut comprises a channel section girder 17 formed with two Y-shape members 18 each having a squared portion 19 extended by a bolt 20, and diverging lugs 25, 29 respectively. The squared portion 19 are inserted in recesses 21 formed in the wing tip structure 12b (in the embodiment, of honeycomb construction) and retained by nuts secured to bolts 20 inserted through apertures 22. The lugs 25 are apertured for bolts 27 which also pass through lugs 26 on each engine 14 and the lugs 28 are apertured for bolts 31 which also pass through lugs 30 on each engine, the bolts 27 being substantially fore-and-aft and the bolts 31 tangential of the engine casings. Each pair of engines is enclosed by a cowling 16 supported by struts 32 socketed at respective ends in portions 19 and the cowling. Girder 17 is apertured at 34 for services 35 which pass from the wing to the engines.
Patent GB-1527414-A (GB)
Title: Epicyclic gearing
IPC: F16H1/28
Filed: 1976-06-24
Abstract: 1527414 Epicyclic gearing; universal joints DAVID BROWN TRACTORS Ltd 21 June 1977 [24 June 1976] 26301/76 Headings F2Q and F2U  In epicyclic gearing a floating planet carrier assembly 31, 32, 35 drives an output shaft 13 through teeth of the carrier body 31 and a disc 32 which mesh with substantial backlash with external teeth of a sleeve 21 which rotates with shaft 13 and external teeth of a lock nut 24. The ring gear 27 is fixed and the sun 19 is driven through gears 17, 18. The gearing is in the drive to the wheel of a tractor.
Patent GB-1013874-A (GB)
Title: Improvements in apparatus for determining the turbidity of fluids
Inventor: BRIGGS RONALD
IPC: G01N21/51
Filed: 1963-07-03
Abstract: 1,013,874. Photo-electric determination of turbidity. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 3, 1964 [July 3, 1963], No. 26325/63. Heading G1A. Determination of the turbidity of a fluid is carried out using apparatus comprising a casing 12 in which are mounted a photo-cell 17 and means for directing a light beam into a sample cell 11, these being movable relatively to each other so that in one relative position the photo-cell receives light transmitted through a fluid in the sample cell from the light-directing means and in the other, light scattered by particles in the fluid. The light source 13 and condenser system 15 are mounted in a side tube 14, which may be wholly enclosed in the casing in a more portable version of the apparatus. The cell 17 which may be photoemissive, -conductive, or -voltaic, is mounted on a turntable 18, which is rotated by a knob 21, and may, in another embodiment (Fig. 3, not shown), move inside the sample cell. In operation, the photo-cell is first arranged to receive transmitted light, and the rheostat 30 is adjusted to give a full scale deflection on microammeter 31. The resistor 28 reduces the current to the same proportions as that obtained from the cell when receiving scattered light. The turning of the knob 21 to bring the cell into this position, also short circuits the resistor 28. The reading obtained for scattered light is compared with that for transmitted and the turbidity obtained by reference to known graphs &c. A meter already calibrated in solids content may be used. The sensitivity rheostat 30 may, if desired, be in the source supply circuit.
Patent GB-241920-A (GB)
Title: Improvements in coin-controlled delivery apparatus
IPC: G07F11/24
Filed: 1925-10-21
Abstract: 241,920. Ferrand, G. J. J. Oct. 21, 1924, [Convention date]. Delivery of articles stored in piles; coin action, mechanical-connection.-The bottom tube of a pile a rests in a semi-cylindrical support d carried by a shaft e passing into a tube k which is carried by the shaft n of an operating handle m. A coin inserted through a shoot g enters tapered slots in the shaft e and tube k coupling these together for a half-revolution in an anticlockwise direction to deliver the bottom article. The coin then drops out, and the semi-cylinder d and shaft e are returned to normal position to receive the next article by a spring acting on the tube k. A ratchet tooth on the tube en. gages a pin on the shaft c to return the shaft.
Patent GB-657489-A (GB)
Title: Regenerative tilting furnaces
IPC: F27B3/00
Filed: 1947-09-30
Abstract: 657,489. Open-hearth furnaces. BARTU F., and STEYRLEITNER, H. Sept. 30,1947, No. 26422. [Classes 51 (i) and 51 (ii) ] A furnace end for a tilting regenerative open-hearth furnace comprises three separate, detachable and renewable parts 4, 5, 6, parts 4, 6, being disposed respectively above the vertical air and gas uptakes 7, 8, whilst removal of the lightest part 5 facilitates repair of the highly stressed gas port which is located in the part 4 at its end remote from the hearth.
Patent GB-742574-A (GB)
Title: Process and means for the manufacture of alumina
IPC: C01F7/441
Filed: 1951-11-12
Abstract: <PICT:0742574/III/1> Alumina having a very small percentage of soda is prepared by treating a soda-containing monoclinic alumina of the Gibbsite type, with water or a dilute solution of ammonium sulphate, chloride, &c. at 180-230 DEG C. and at a pressure of at least 15 kg./cm.2, recrystallizing under the same temperature and pressure to the less hydrated rhombohedral form, and washing the product.  An apparatus suitable for the process consists of a vessel 1 in which water is boiled under pressure, connected by a steam pipe 8 to a tank 5 containing the alumina, which is extracted by the water condensing on the lower ends of metal rods 3 passing through cover 4.  A tube 7 is provided for the return of the condensed water to the boiler.
Patent GB-410801-A (GB)
Title: Improvements in or relating to apparatus for discharging bins, hoppers and the like
IPC: B65G65/48
Filed: 1932-09-23
Abstract: 410,801. Delivering measured quantities of powders. BOBY & CO., Ltd., W., and FROUDE, R. H., 62, Brook Street, Hanover Square, London. Sept. 23, 1932, No. 26495. [Class 106 (v).] Apparatus for discharging the contents of a bin or the like in measured quantities comprises a rotor g disposed in a close-fitting housing b at the bottom of the bin a and mounted to rotate about a vertical axis, the rotor having a scalloped or serrated periphery forming measuring pockets h, one or more discharge ports in the housing protected by a cut-off shelf or the like above the scalloped edge of the rotor, which is a close fit between the shelf or shelves and the housing, and an ejector to remove material from the recesses h as they are exposed to the discharge port or ports. The rotor comprises a horizontal flange at the base of a conical member e keyed to a vertical shaft d journalled in a bearing c at the bottom of the housing. In the form shown the rotor has nine recesses h and the housing is formed with four outlet ports k in the side and bottom beneath the cutoff shelves j. At each port is an ejector comprising a rod m carrying a roller p which is pressed against the flange g by a spring o. Stirring blades q, r project from the conical member e.
Patent GB-422638-A (GB)
Title: Improvements in or relating to air guns
IPC: F41B11/647
Filed: 1933-09-26
Abstract: 422,638. Air guns. SCHMEISSER, H., 5, Philosophenweg, Suhl, Thuringia, Germany. Sept. 26, 1933, No. 26527. Convention date, Feb. 7. [Class 119] The air cylinder 1 of an air gun is extended to form the housing 9 for the compression spring 3 and the chamber 10 into which the air piston moves to the cocked position, and is arranged between the pivot pin 5<a> and handlepart 5<b> of the cocking lever 5 in such manner that the cocking lever acts directly on the air pistonrod 2 without any intermediate link. In the construction shown, the lever is made in two parts hinged together at 5d, and passes through longitudinal slots 1<b>, 2<b> formed in the chamber 10 and piston rod, respectively. A lug 5<c> on the lower part of the lever engages the end face 2<c> of the slot 2b during the charging operation, and when charged, a bent 2d on the piston rod is engaged by a trigger sear 8. After charging, the lever is returned to its forward position, and the upper part thereof is rotated laterally into a circumferential slot in the chamber 10. The spring 3 bears against a disc 4 supported against a pressure sleeve, the sleeve being also slotted for the passage of the cocking lever. In modifications, the cocking lever is made in one piece, or in two parts which slidingly fit one within the other.
Patent GB-952771-A (GB)
Title: Improvements in or relating to air cushion vehicles
Inventor: BUNTING WILFRED HENRY
IPC: B60V1/16
Filed: 1961-07-24
Abstract: 952,771. Air cushion vehicles. VICKERS-ARMSTRONGS Ltd. July 18, 1962 [July 24, 1961; Dec. 22, 1961], Nos. 26726/61 and 4608/61. Heading B7K. An air cushion vehicle is provided with a depending peripheral flexible skirt which comprises a plurality of discrete first members, adjacent first members being effectively joined together by a second member, the arrangement being such that the skirt is continuous round the periphery of the vehicle and that with the skirt in its usual depending position there is an upright fold in the second member between each adjacent pair of first members. In the arrangement of Figs. 1 and 2 each first member 1 comprises two parts 1A, 1B which embrace a continuous flexible sheet 2, which in the normal position of the skirt is formed with a fold 3 between each pair of members 1, the fold being extended when the skirt is deflected, as shown in Fig. 2. In Figs. 3 and 4 the members 1 are of trapezoidal section with the folds 3 in sheet 2 being formed between them as shown in Fig. 3, the deflected form of the skirt being shown in Fig. 4. Various embodiments are described for attaching the skirt to the vehicle. Specification 952,772 is referred to.
Patent GB-1218217-A (GB)
Title: Fluoro catalytic additives for preparing polyesters
IPC: C08G63/85
Filed: 1968-06-05
Abstract: 1,218,217. Polyethylene terephthalate. FMC CORP. 5 June, 1968 [30 Aug., 1967], No. 26734/68. Heading C3R. Polyethylene terephthalate is prepared by direct esterification of terephthalic acid with ethylene glycol, or transesterification of dialkyl terephthalate with ethylene glycol, to form a prepolymer, the prepolymer then being polycondensed in the presence of a catalytic additive of formula or any combination thereof, where M is NH 4 -, which may be substituted by at least one C 1-6  alkyl, M<SP>1</SP> is NH 4 -, or substituted NH 4 - as above, or alkali metal, M<SP>11</SP> is alkali metal or NH 4 - (as above), when x=2, or alkaline earth metal, when x-1, and M<SP>111</SP> is alkali metal or ammonium. The catalyst may be present during the esterification reaction, and may be used in an amount of 5 Î 10<SP>-8</SP> to 5 Î 10<SP>-3</SP> mole per mole of terephthalic acid, or in an amount of 0À004- 0À2% by weight of the prepolymer. Examples of catalysts are: NH 4 SbF 6 , (C 3 H 7 ) 3 NHAsF 6 , NH 4 TiF 6  and NH 4 SbF 4 .
Patent GB-776836-A (GB)
Title: Improvements in or relating to the formation of mechanical joints between electricalconductors
Inventor: MUIR NEIL BAIRD
IPC: H01R4/62
Filed: 1953-10-02
Abstract: 776,836. Couplings. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 4, 1954 [Oct. 2, 1953], No. 27057/53. Class 38 (1).  A composition for reducing the joint resistance between conductors formed from metal or alloy liable to form an oxide skin on exposure to the atmosphere comprises a substance adapted to remove the oxide skin and a salt or oxide of a metal adapted to be deposited on one or both of the mating surfaces of the conductors by electrochemical displacement. A suitable composition is: zinc oxide 0.7 per cent; sodium hydroxide 3.5 per cent; water 5.7 per cent; calsolene oil 90.0 per cent; colouring matter 0.1 per cent. To lengthen the time during which the joint should be completed after application of the composition to the conductors, the composition may be emulsified with oils, greases or soaps. For example, the composition may comprise: fluoboric acid, 5 ml.; Lissapol NDB (Registered Trade Mark), 50 ml.; zinc stearate, 15 grms. Specification 778,159, [Group XXXV], is referred to.
Patent GB-1484747-A (GB)
Title: Toy
IPC: A63F9/14
Filed: 1975-06-26
Abstract: 1484747 Toys TOMY KOGYO CO INC 26 June 1975 [28 June 1974] 27095/75 Heading A6S A toy comprises a non-magnetic track 18 on which at least one toy motor cycle, &c. 60 is movable, with an endless flexible belt 56 below the track driven along lengthwise of the track and having a holder 68 with at least one magnet 66 to coact with a magnet 64 in the toy motorcycle 60 to draw the latter along, the belt 56 flexing in use so that the toy motor cycle &c. moves from side-to-side. The holder 68 consists of a disc rotatably mounted by a shaft 70 to the belt 56 and carries four magnets 66. The belt 56 has teeth 58 worked by a driving idle pinion 52 powered by an electric motor 46 energized via a switch 44 by batteries 40. Guides 32, 34 support the belt, but allows it to snake between them. Strips of friction material 72 along the sides of a passage 36 through which the belt 56 is traversed are intermittently engaged by the edge of the holder disk 68, which also from time-to-time engages the sides of the belt passage as the belt snakes. The holder 68 is thus intermittently twisted with its shaft 70 relative to the belt 56, so that the motor cycle or motor cycles 60 on the track 18 above move sideways. The track 18 may be provided with start and finish lines, a lap counter, &c.
Patent GB-954967-A (GB)
Title: Improvements in or relating to sprinkler heads for automatic fire-extinguishing installations
IPC: B05B1/26
Filed: 1962-07-16
Abstract: 954,967. Fire-extinguishing; sprinkler heads. H. M. WITTENBURG, and F. SCHIELE, [trading as SELBSTTATIGE FEUERLOSCHAMLAGEN GES. RUD. OTTO MEYER]. July 16, 1962 [July 28, 1961], No. 27189/62. Heading A5A. In a sprinkler head for an automatic fireextinguisher the liquid outlet of a nozzle body 1 is closed by a valve body 10 of frusto-conical form bearing, via a packing ring 14, against an annular upper projection 7 of the nozzle body. The valve body is held in position by a fusible solder or by an ampule 11 filled with a liquid which is adapted to burst at a predetermined temperature. The ampule is held in position by the head 5 of a two-armed yoke 4 on the sprinkler head, which head 5 also carries spray vanes 6. The projection 7 consists of a ring machined out of the nozzle body 1 and is of such width and thickness that it is resilient to the pressure p exerted by the extinguisher fluid.
Patent GB-332445-A (GB)
Title: Improvements in swimming suits
IPC: A41D7/00
Filed: 1929-09-06
Abstract: 332,445. Wisner, R. F. Sept. 6, 1929. Bathing-dresses.-A bathing-dress comprises a tubular member 10, 'the lower front part 11 of which forms a skirt, and a member 12 which is stitched across the front of the waist 13 and down the sides 13<1> while its lower central part is connected to the rear of member 10 by a gusset 14 to form trunks 16. The dress is made of knit material with the ribs running horizontally.
Patent GB-1441058-A (GB)
Title: Punch for making cruciform-recessed screws
IPC: B21K1/46
Filed: 1974-06-19
Abstract: 1441058 Heading IWATANI SANGYO KK and I UOZUMI 19 June 1974 27237/74 Heading B3H A punch 33 for making a cruciform recess in a screw head comprises a shank 21 and a head 22 composed of a tapered portion with cruciform ribs and a conical end portion 23. The ribs each have a flat outer face 24 and side faces 25. The side faces 25 of adjacent ribs are connected by an intermediate wall 26 formed of a pair of curved sections 30, 31 of different radii 27, 28, Fig. 7. The larger radii curved section 30 has its centre of curvatuve off the bisector 29 of the angle between the ribs. In use a screw driver (36), Figs. 10-12 (not shown), engages the curved sections of the recess at eight points (31a), (31b) (30a), (30b) to retain a screw on the end of the screw driver.
Patent GB-1387946-A (GB)
Title: Radiation beam splitter
IPC: G02B5/32
Filed: 1973-06-08
Abstract: 1387946 Photo-electric angle measurement INTERNATIONAL BUSINESS MACHINES CORP 8 June 1973 [23 June 1972] 27309/73 Heading G1A [Also in Divisions G2 and G3] A beam splitter comprises a diffraction grating arranged to split an incident beam into a zero diffraction order beam and two opposite polarity first diffraction order beams, the power of one of the first order beams being monitored and adjusted to a predetermined value by adjusting the angle of incidence of the beam on the grating thereby adjusting the ratio of the powers in the other two beams to a selected value.  As shown, a holographic exposure system comprises a laser 3 or a beam splitter 1 comprising a holographic Bragg phase grating positioned approximately at the Bragg angle relative to the incident beam 2. Under these conditions approximately 50% of the input beam power is directed into the zero order beam 15 and the + 1st order beam 16, the total power in these beams remaining constant but the split ratio varying for small rotations of the grating. A small proportion of the power is also directed into the -1st order beam 17 this also depending on the displacement from the Bragg angle. A detector 30 monitors beam 17 and its output is compared with a reference level provided by a potentiometer 50 to produce a control signal for adjusting the grating to the desired angle of incidence and hence to the desired power split ratio between beams 15 and 16. After adjustment of the split ratio the output of the monitor may be switched to a control circuit for the laser power supply 40 thus maintaining the laser output at a selected value. Alternatively the control circuit may adjust a modulator in the beam from an unregulated laser. The position of the grating may also be adjusted by comparing the output of a control potentiometer 91 with that of a feedback potentiometer 92 mechanically coupled to grating drive motor 7. The control potentiometers are suitably calibrated by plains power monitors in beams 15 and 16 to determine total output beam power and split ratio. Rotation of the grating produces a small angular displacement of the beam 16 but if desired this may be overcome by using an FM grating in which the rotation also results in a change of grating frequency. The beam splitter may also be used in interferometric applications.
Patent GB-692370-A (GB)
Title: Improvements relating to apparatus for controlling the timing and quantitative delivery of several constituent fluids
IPC: D06F34/08
Filed: 1950-11-09
Abstract: 692,370. Stencil switches. MASHEDER, P. R. Nov. 5, 1951 [Nov. 9, 1950], No. 27359/50. Class 38 (v) [Also in Group XXIX] In apparatus for controlling the timing and quantitative delivery of fluids one of a number of solenoids 19 is energised when a contact arm 15 makes contact with a metal drum 10 through perforations 37 in a band 17 carried by holes 36 engaging sprockets 35 on the drum, the latter being rotated through reduction gearing 13 by motor 12.
Patent GB-318402-A (GB)
Title: An improved centrifugal pump unit
IPC: F04D29/62
Filed: 1928-09-24
Abstract: 318,402. Mackley, E. N. Sept. 24, 1928. Multi-stage centrifugal pumps; casings; pumping-machines.-In a multi-stage centrifugal pump unit, a number of impellers arranged on a central shaft c and separated by partitions are arranged within a split casing a which has one or both ends terminating in a flange g adapted either to be closed by a detachable end plate h or to be connected directly to another unit. The casing a is provided with an integral foot f and an extension d supporting the bearing e for the shaft c. The foot f<1> and bearing e<1> are carried by the closing plate h. The suction and discharge pipes j, k are arranged in transverse alignment. In a modification, Fig. 3, both ends of the pump casing terminate in flanges g, and the shaft bearings e' are integral with feed f<1> fitted to the closing- plates h. In Fig. 4, a four stage pump is composed of two of the units shown in Fig. 1, joined together at the flanges g. A six-stage assembly may be formed by interposing the unit shown in Fig. 3 between the two units shown in Fig. 4. The invention may also be applied to vertically arranged units, Fig. 6, the foot f being omitted from the extension d and a pedestal m being substituted for the end plate h.
Patent GB-919376-A (GB)
Title: A game employing jig-saw puzzles
IPC: A63F9/10
Filed: 1960-08-09
Abstract: 919,376. Indoor games. SCHARF, R. Nov. 9, 1961 [Aug. 9, 1960], No. 27542/60. Drawings to Specification. Class 132 (2). Apparatus for playing a game comprises a plurality of jig-saw puzzles, each having the same number of pieces, the pieces of all the puzzles being mixed and divided at random between the players partaking in the game, a number of trays on each of which a puzzle is to be assembled, and " swopping boards " subdivided into two rows of spaces for displaying and receiving respectively pieces exchanged between players.