baber/WOPTO huggingface dataset:
Patent GB-907995-A (GB)
Title: Improvements relating to semiconductor devices
Inventor: BUCKLEY JOHN
IPC: H01L23/31
Filed: 1960-05-28
Abstract: 907,995. Semi-conductor devices. FERRANTI Ltd. May 18, 1961 [May 28, 1960], No. 18939/60. Class 37. In a semi-conductor device comprising a semi-conductor element 1 e.g. of silicon, between terminals 2, 3, encapsulated in a moulded casing 6 a closely fitting sleeve 5 of elastic material under tension is interposed between the element and casing. The device shown is made by soldering a silicon wafer between the terminal wires which are then gold plated by immersion. After etching and applying a silicone varnish 4, a sleeve 5 of silicone rubber is pushed over the element and casing 6 formed of thermoplastic or epoxy resin by injection moulding. In a prior art device referred to a painted rubber layer is used instead of a tensioned sleeve.
Patent GB-783527-A (GB)
Title: Improvements in building components
IPC: E04B2/30
Filed: 1954-06-28
Abstract: 783,527. Building blocks; walls. AKTIESELSKABET SANO. June 28, 1954 [June 30, 1953], No. 18942/54. Classes 20(4) and 87(1) A building block is formed on its rear face with a central rib 12 of rounded dovetail section and with similar half ribs 14, 16 at the ends, the recesses 18, 20 corresponding in section to the rib 12 to permit the interlocking of blocks back to back in staggered horizontal and vertical relation. At a corner, Fig. 4, apertured blocks 30 provided with a quarter block 36, 38 on an end and a side face may be employed or, Fig. 5, an external block 40 with an additional half dovetail 42 and an internal block 50 with an arcuate dovetail 56 and a quarter block projecting from its rear face at that end. Wall junction blocks comprise standard blocks provided with a half or quarter block on their front faces. A modified block, Fig. 11, comprises two standard blocks 130, 140, vertically staggered. Reinforcing irons may extend from the foundation to the roof through spans between the blocks
Patent GB-723532-A (GB)
Title: Improved beet topping mechanism
IPC: A01D23/02
Filed: 1951-09-11
Abstract: 723,532. Beet-topping machines. WHITSED, W. J. Dec. 11, 1952. [Sept. 11, 1951] No. 18943/51. Class 6 (3). A beet-topping mechanism, of the type comprising interconnected pivoted arms 10, 17, respectively carrying a driven rotary feeler 13 and a topping knife 24, is characterised in that there is a reduction ratio between the movements of the feeler and topping knife so that larger beets are sliced more deeply than small beets. This is effected by providing arms 10, 17 of different lengths and interconnecting them by a pivoted link 23 at different distances from their pivots 12 and 21. The arm 10 is pivoted about a shaft 12 driven by a power take-off from a tractor (not shown) to which the device is attached and carrying a sprocket and chain drive 34, to the feeler wheels 13. These are serrated at 30 and have flanges 31 which prevent their picking up trash. An additional guard 32 is provided on the arm 17. The reduction ratio may be altered by movement of the pivot point 21 into alternative positions 22, or, in a modification, by providing alternative positions for the pivot 27. The initial.spacing between the knife and feeler is adjustable by a nut 29. The member 16 carrying the arms 10, 17, may be mounted on a tractor or other vehicle and the spindle 12 may be driven by the land-wheels of this vehicle.
Patent GB-962971-A (GB)
Title: Process for rendering sulfide pigments organophilic
IPC: C09C3/08
Filed: 1961-05-25
Abstract: Sulphide pigments are rendered organophilic by mixing an aqueous suspension thereof, the particles of which have a positive change in aqueous suspension, with a solution of an anionic surface active agent, then adjusting the pH of the suspension to 4 to 7, preferably to 5 with mineral acid or the chlorides of zinc, cadmium or antimony, separating the pigments and after drying, optionally disintegrating them.  The anionic surface active agent may be an alkali metal or ammonium salt of a saturated or unsaturated fatty acid containing at least 8 carbon atoms, and includes stearic, oleic and palmitic acids as well as polymerized unsaturated acids, or alkyl, aralkyl or mixed alkaryl sulphonates or sulphates, phosphates or polyphosphates. Cadmium sulphide, cadmium sulphoselenide and antimony sulphide pigments are particularly suitable, and it is preferred to use the salt having the same cation as the sulphide pigment to adjust the pH. The examples describe the treatment of cadmium sulphide, cadmium sulphoselenide, antimony and zinc sulphide.  The resulting pigments remains well suspended in a paint vehicle and paint films resulting from their use have excellent weathering resistance and water resistance.ALSO:Sulphide pigments are rendered organophilic by mixing an aqueous suspension thereof, the particles of which have a positive charge in aqueous suspension, with a solution of an anionic surface-active agent, then adjusting the pH of the suspension to 4 to 7, preferably to 5 with mineral acid or the chlorides of zinc, cadmium or antimony, separating the pigments and after drying, optionally disintegrating them. The anionic surface-active agent may be an alkali metal or ammonium salt of a saturated or unsaturated fatty acid containing at least 8 carbon atoms, and includes stearic, oleic and palmitic acids as well as polymerized unsaturated acids, or alkyl, aralkyl or mixed alkaryl sulphonates or sulphates, phosphates or polyphosphates. Cadmium sulphide, cadmium sulphoselenide and antimony sulphide pigments are particularly suitable and it is preferred to use the salt having the same cation as the sulphide pigment to adjust the pH.  The examples describe the treatment of cadmium sulphide, cadmium sulphoselenide, antimony and zinc sulphide. The resulting pigments remain well suspended in a paint vehicle and paint films resulting from their use have excellent weathering resistance and water resistance.
Patent GB-152452-A (GB)
Title: Improvements in pliers and like gripping tools
IPC: B25B7/10
Filed: 1919-07-31
Abstract: 152,452. Robinson, A. S. F. July 31, 1919. Pliers and pincers.- In pliers or like gripping-tools of the kind described in Specification 11352/13, in which the foot b of an L- shaped jaw such as a, Fig. 1, is formed as a rack engaging a pin p in an extension c of a jaw d to which is pivoted at g a lever f pivotally connected to a link j formed with a rack engaging a pin fixed to the jaw a, a spring u retaining the racks in engagement with the pins, the rack foot b operates on one side only of the extension c and is either formed as one piece or is slotted and has a separate rack part secured to it, the pin p is adapted to clamp the parts in an adjusted position, and the lever f is of U-section embracing a lug e. The rack n, Fig. 1, is riveted to one end of the foot b and has a tongue n<1> fitting a recess in the end of the slot o, a turned over projecting part of the tongue securing the rack to the foot b. The rack n may also be formed as a plate riveted to the ends of the foot b or as a flanged plate, part of the flange fitting in the slot o. The pin p has a semicircular head and at its other end is either riveted to the extension c or is threaded and passed through a slotted link pivoted to the lever f, a thumb-nut securing the parts in an adjusted position. With this arrangement, the tool may be used as callipers. One end of the spring u is hooked to a groove in a distance piece between the ends of the link j, and the other is attached to a lug on the extension c or to an eye formed on one end of a hole in the extension c. A strap may be secured to the end of the link j by the screw h<1> so that the tool may be used as a hammer.
Patent GB-335597-A (GB)
Title: Improvements in or relating to the preparation of rubber compositions
IPC: C08J3/09
Filed: 1929-06-20
Abstract: 335,597. Jackson. L. Mellersh-, (Nawgatuck Chemical Co.). June 20, 1929. Rubber dispersions are prepared as water-in-oil emulsions by emulsifymg water in oil with suitable emulsifying agents and adding rubber before, after, or at any stage of the emulsification with subsequent mixing to cause dispersion. Such dispersions can be converted into the oil-in-water type and back as desired upon change of the solubility of the emulsifying agent. Suitable emulsifying agents are the higher saponifiable acids such as stearic, oleic, palmitic, abietic, undecylenic, resin acids, pine tars and pitches, rosin, insoluble metal soaps, lanolin, gum dammar, water insoluble stearates, oleates, resinates &c. In an example, melted stearic acid is added to spindle oil and water stirred in at a temperature of 130-150‹ F. to form a fluid water-in-oil emulsion, stiffening on cooling, with partial separation of water on standing. Rubber is added to this in a mixer at a temperature of 150-200‹ F., a smooth product being obtained after 2 to 3 hours. Addition of alkali to form a water-soluble stearate causes a reversal of phase to a dispersion of the oil-in-water type which resembles concentrated latex, unlike the original sticky product. The water-in-oil dispersions can be used in substantially the same manner as the rubber-solvent doughs are used in making spread or coated fabrics. They have improved adhesive properties when tars and pitches are used as emulsifying agents, and can be diluted with oil or a water-in-oil emulsion. Compounding and vulcanizing ingredients may be introduced. The reversed dispersions can be used in all cases in place of rubber latex or can be mixed with it. The reversal may be made to take place in situ, thus a fabric is coated with a. sticky water-in oil composition, and phase reversal brought about by treatment with alkali to remove the stickiness. Rubber latex can be compounded with oils and other water-insoluble liquids by mixing it with an emulsion of water in the oil which is first reversed to form the oil-in-water type. Removal of part of the water gives a composition more stickv than one with the same. amount of oil as an oil-in-water emulsion with agents such as glue or saponin not capable of alteration in solubility. Similar reversible dispersions are prepared by dispersing rubber and oil in water with a water soluble emulsifying agent, such as sodium oleate, capable of conversion into an insoluble compound, such as magnesium oleate, which can form water-in-oil emulsions. True oils, mineral, animal or vegetable or any liquid or easily liquified material capable of forming emulsions of both the oil-in-water and water-inoil type, and also any form of raw or reclaimed rubber or rubber-like substance may be used in these dispersions.
Patent GB-1473236-A (GB)
Title: Radioactive material generator
IPC: G21G4/06
Filed: 1974-05-01
Abstract: 1473236 Separating radioisotopes E R SQUIBB & SONS Inc 1 May 1974 [4 May 1973] 19153/74 Heading G6R In a radioactive liquid generator comprising a column containing an electable radioactive material, the column is provided with inlet and outlet conduits fitted with pierceable closure caps 30, the column and conduits are enclosed in a radiation-shielding casing 42 which leaves the closure caps free to be pierced, and a fitting 100 designed to be joined to the casing is provided with closure piercing means 132, 138 and with connections for attachment to containers for the eluent and the eluate. In use, a container of eluent is inserted upside down in the holder 134 so that the needles 136, 138 pierce a sealing diaphragm of the container; an evacuated container is placed upside down in holder 130 so that needle 132 pierces its sealing diaphragm. Eluent passes through the generator column and eluate is collected in the container in holder 130. The casing 42 may be made of lead and constructed in two interfitting pieces. In a modified generator, Figs. 7-10 (not shown), the fitting 100 is in two parts and a plate is provided for the eluate leaving the generator. The generator is suitable for the elution of Tc 99m, for use in medicine, from Mo 99 supported on alumina, using saline or dilute HCl as the eluent.
Patent GB-749775-A (GB)
Title: Improvements in, or relating to, footwear
IPC: A43B3/10
Filed: 1953-07-10
Abstract: 749,775. Sandals. GOLDMAN, M. Feb. 11, 1954 [July 10, 1953], No. 19256/53. Class 17 (2). A sandal moulded in the flat of thermoplastic material comprises a sole 10 with a rim 11 of greater thickness than the inner part of the sole extending around its periphery and with five ribs 12 on each side and straps 13, 14, 17 which project symmetrically from the centre of the side edge of the rim 11 so that identical blanks can be used for right and left sandals, the straps singly being bent to the opposite side of the sole.
Patent GB-1217591-A (GB)
Title: Improvements in or relating to tailstocks
IPC: B23B23/00
Filed: 1968-04-24
Abstract: 1,217,591. Tailstocks. BABCOCK & WILCOX CO. 24 April, 1968 [24 April, 1967], No. 19267/68. Headings B3B and B3T. A tailstock assembly for a machine tool such as a lathe, comprises a housing 14 mountable on the lathe bed, a rotatable member 19 having a flange portion 24 and a shaft portion 20 located in the housing and carrying a centre C for supporting the end of a workpiece W, the member 19 being supported in the housing by fluid pressure means in the form of pressure regions 21 peripherally disposed in the housing around the shaft portion 20 and pressure regions 26 angularly spaced in the end of the housing, the regions together effecting radial and axial support for the member 19 during operation. The pressure regions are supplied with fluid by way of conduits and restrictors 22, 27. In the embodiments described with reference to Figs. 6 and 8 (not shown), the co-operating members are formed by the machine centre or parts thereof and the housing. In the embodiment described with reference to Fig. 10 (not shown), the rotatable member is radially and axially supported in the housing and axial thrust relative to the workpiece is provided by an external piston and cylinder assembly.
Patent GB-889997-A (GB)
Title: Improvements in or relating to methods and machines for cutting gear teeth
IPC: B23F5/12
Filed: 1958-02-27
Abstract: 889,997. Toothed gears. ROMI, G. Feb. 27, 1958 [June 27, 1957], No. 19313/61. Divided out of 889,996. Class 80 (1). [Also in Group XXII] Rack teeth are cut on bars 50, mounted axially of a rotating drum, by a pinion-type cutter 11a (see Group XXII). The roots C 1  between the teeth are thus curved across the rack and the teeth themselves are crowned as shown by the cross-section P-P.
Patent GB-381237-A (GB)
Title: Production of aryl mercapto compounds
Filed: 1931-07-06
Abstract: Mercaptophenols are prepared by heating a dihydroxydiphenylsulphide or a monohalogenphenol with a mixture of alkali sulphide and alkali hydroxide.  Examples are given of the conversion of 4 : 4<1>-dihydroxydiphenylsulphide and p-chlorophenol to monothiohydroquinone, 5-chloro-o-cresol to 5-mercapto-o-cresol, and o-chlorophenol to monothiocatechol, using sodium sulphide and flake caustic soda in each case. Specification 173,313, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-428980-A (GB)
Title: Improvements in apparatus for ventilating ships' cargo compartments
IPC: B63J2/10
Filed: 1934-07-02
Abstract: 428,980. Ventilating ships. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Black Diamond Steamship Corporation; 39, Broadway, New York, U.S.A.) July 2, 1934, No. 19446. [Class 137] [See also Group II] The cargo compartment of a ship is ventilated by a cowl unit G comprising a fan which forces air through a trunk A and ventilator C, with an inlet the aperture in which is adjustable, to the lower hold D, the cargo space B being also supplied with air from the trunk A. The forced draught cowl comprises a motor driven fan 25 which draws in air through a screen 40 around a baffle 29, and through a duct 28 and forces it down trunk A. Moisture and solid particles are separated centrifugally and discharged through an outlet 36. A reversible conical element 61 which is attached by spring clips 62 to the trunk C controls the amount of air passing therethrough to the lower hold. A wind box 55 leads by outlets 56 to flexible canvas tubes 57 each having a number of outlet tubes 60 to distribute the air in the cargo space. The ventilating unit G may be applied to an existing intake ventilator trunk in lieu of the usual cowl.
Patent GB-442133-A (GB)
Title: Improvements in or relating to aircraft undercarriages
IPC: B64C25/20
Filed: 1934-07-02
Abstract: 442,133. Aircraft landing-gear. DOWTY, G. H., 17, Lansdown Crescent, Cheltenham, Gloucestershire. July 2, 1934, No. 19457. [Class 4] A retractable undercarriage includes a radius rod or similar structural component adapted to " break " at a point intermediate its ends by retracting gear carried wholly by the component. The articulated parts of the radius rod may consist of deformable triangular frames, one side of the triangle being variable in length by virtue of its constitution as a hydraulic jack. The radius rod is formed by triangular casings 1, 2 pivoted on a pin 4 and connected at 1A, 2A to the aircraft and to the axle or lower part of the undercarriage. The members 1, 2 have pivots 6, 7 carrying hydraulic jacks 9, 22 of which the piston rods carry forks to which are rigidly connected pinions 17, 20, rotatable in bearings formed in the arms of a member 5 mounted on the pin 4, and in mesh with interengaging pinions 18, 19 respectively. When a liquid under pressure is admitted at one or both of the connections 8A, 8B the jack extends and causes the rod to "break" at the pin 4, and the gear train 17, 18, 19, 20 effects an equal movement of the part 2, independently of the movement produced by the connection of fluid to the jack 22. The gear train 17, 18, 19, 20 may be omitted. In a modified arrangement, employing a single jack the cylinder is pivotally attached to the part 1 and the piston to the part 2, the thrust line of the jack being offset from the axis of articulation.
Patent GB-876896-A (GB)
Title: Improvements in or relating to electrical control apparatus
IPC: G05B19/04
Filed: 1959-06-08
Abstract: 876,896. Control of electric motors. IGRANIC ELECTRIC CO. Ltd. June 8, 1959 [June 6, 1958], No. 19493/59. Class 38 (3). [Also in Groups XXIX and XXXVI] Electrical control apparatus for the pumping motor of an oil well to de-energize the motor when oil flow ceases comprises two thermistors in a resistance bridge circuit which is unbalanced when the oil is flowing, and is located so that one thermistor heats up and rebalances the bridge to stop the motor when the oil flow ceases. As shown (Fig. 1) the oil is pumped by a motor 10 through pipes 12, 13, 14. A unit 19, screwed into a T-junction 15, carries a tube 20 (Fig. 2) in which is located a first thermistor 24 centrally, and a second, similar thermistor 28 at the tip 26. The tube 20 is filled with an epoxy resin 22. The thermistors have the same temperature and resistance when no oil is flowing through the pipes, so that a bridge circuit 70 (Fig. 4) in which they are connected is balanced. Motor 10 is primarily controlled by a timer 52 which closes contact 52a for a quarter-hour in each twelve hours to energize relay 51, connecting motor 10 to the A.C. supply. The passage of oil through the pipes causes thermistor 28 to dissipate its heat rapidly, whereby its resistance increases to unbalance bridge 70 and the unbalance voltage overcomes the normal cut-off bias on a transistor 62 to allow collector current to energize a relay 54 completing a holding circuit for relay 51 at contact 54b. If oil is still flowing at the end of the quarter-hour period, motor 10 continues to run after contact 52a has opened, until the flow ceases and bridge 70 is rebalanced.
Patent GB-988112-A (GB)
Title: Improvements in wire rope
IPC: D07B1/16
Filed: 1963-05-16
Abstract: 988,112. Ropes. A. DIETZ. May 16, 1963 [June 6, 1962], No. 19526/63. Heading D1T. A stranded wire rope has the gaps 4, 5, 6 between the outer strands 3 filled with synthetic plastic material 7, 8, 9 in such a manner that the exposed surface of these fillings generate a cylindrical surface 10 that is substantially equal to the diameter of the wire rope. The fillings preferably extend inwardly beyond a circle 11 connecting the centres of the outer strands 3 and may surround the inner strand 2. The strands 3 are preferably spaced apart to permit the fillings to pass between them.
Patent GB-1036157-A (GB)
Title: Facsimile transmitter light assembly
IPC: H04N1/028
Filed: 1963-05-17
Abstract: 1,036,157. Facsimile apparatus. HOGAN FAXIMILE CORPORATION. May 17, 1963 [May 31, 1962], No. 19611/63. Heading H4F. An elongated scanning area 12 defined by a slot in plate 11, beneath which is traversed the image 36 to be transmitted, is illuminated by a pair of incandescent lamps 27 which are located adjacent the ends of the area and illuminate it by way of direct light and light reflected from an elongated concave reflector 34 of greater length than the area, Fig. 3 (not shown). Light reflected from the area passes to a photo-electric cell 45 by way of reflectors 37 and 42, lenses 38 and 41, and scanning means 40. The arrangement provides substantially uniform illumination intensity along the scanning area with a slight increase towards the ends, Figs. 4-6 (not shown), to allow for a fall in optical efficiency of elements in the system. Fine adjustment of the overall light transmission may be made by the use of a shaped corrector plate 54 or by masking parts of reflector 34. A second reflector 34a may be provided. As illustrated, the reflectors are of circular crosssection. In a modification, Fig. 8 (not shown), a reflector of elliptical cross-section is used. Reference is made to the use of a reflector which approximates to an ellipse but is made from a number of sections of cylindrical cross-section. The Specification discusses the desirable sizes of the reflectors, and the positioning of lamps 27 and area 12 relative to the centre of curvature or foci, and the angular positioning of the axes of the reflectors. The axis of the reflector may be inclined to the scanning area with the axis of the photo-electric means normal thereto as illustrated, or vice versa. The lamps are preferably disposed outwardly of the ends of the scanning area to avoid bulb shadow. An additional bulb may be positioned intermediate bulbs 27.
Patent GB-717379-A (GB)
Title: Improvements in or relating to rotary drum mixers
IPC: B01F29/64
Filed: 1952-08-02
Abstract: 717,379. Mixing appliances. NEWELL & CO., Ltd., E., and HOWDEN, P. May 14, 1953 [Aug. 2, 1952], No. 19619/52. Class 86 A mixer for powdered and granular materials with or without liquids, comprises a horizontal rotary drum provided with two or more scrolls disposed longitudinally of the drum within the position occupied during rotation of the drum by the materia] to be mixed, means being provided for rotating the scrolls at different speeds with respect to each other. In the embodiment described, two scrolls comprise shafts 11 and 12 carrying paddles 20 which are obliquely pitched to propel the material 19 from a feed shoot at one end of the drum 1 to a discharge shoot at the other end. The scrolls are driven at different speeds in the direction of rotation of the drum so that different parts of the material are conveyed through the drum at different speeds whereby batches of material charged separately into the drum are intermixed. One or mare scraper blades 24 may be provided. The mixer is suited to the mixing of iron ore, coke, flue dust, and water for sinter plants.