baber/WOPTO huggingface dataset:
Patent GB-1268701-A (GB)
Title: Protective coverings
Inventor: NEWMAN DOUGLAS FREDERICK RALPH
IPC: E04D5/10
Filed: 1969-04-18
Abstract: 1,268,701. Coatings. D. F. R. NEWMAN. 18 April, 1969, No. 20067/69. Heading B2E. [Also in Divisions B5, C3 and El] A protective cover, e.g. for a roof, comprises a layer of glass fibre reinforcing between two layers of epoxy pitch, the cover may be formed in situ on a roof by applying thereto a layer of epoxy pitch, embedding a layer of glass fibre in the layer of epoxy pitch and then applying a further layer of epoxy pitch. A further layer of glass fibre may be embedded in the second layer of epoxy pitch and a third layer of epoxy pitch then applied. An edge trim, e.g. of extruded polyvinyl chloride, may be applied to the edge of the roof surface prior to the application of the first layer of epoxy pitch and a surface coating, e.g. of mineral granules, may be applied to the last layer of epoxy pitch. The layer of glass fibres may be in the form of woven cloth or of a mat of continuous strands or short chopped rovings random laid or bonded. The epoxy pitch may comprise an epoxy resin, a polyamide curing agent and coal tar pitch and may be supplied in twopack form so that the pitch and epoxy resin are already mixed together and the polyamide curing agent is added prior to use. The epoxy pitch may be applied with rubber blade or a squeegee applicator.
Patent GB-991012-A (GB)
Title: Roof support assembly
Inventor: BOLTON DOUGLAS HERBERT HEWLETT
IPC: E21D23/14
Filed: 1962-05-25
Abstract: 991,012. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. May 21, 1963 [May 25, 1962], No. 20179/63. Divided out of 991,007. Heading F1P. In a roof support assembly wherein a series of roof supports are automatically advanceable in a predetermined sequence when supplied in turn with fluid under pressure from a line 11, a sequence stoppage indicator 18 including a warning device 24 is arranged to indicate, during an advancing sequence, the existence of a predetermined pressure in the line 11 for more than a predetermined period of time. The indicator 18 comprises a pressure gauge 19 supplied with fluid from the line 11, and having a pointer 22 which completes the circuit to the warning device through a contact 22 and a pressure switch 25, when the pressure exceeds a predetermined maximum. The pressure switch 25 ensures that the warning device is operative in response to maximum pressure only during an advancing sequence. The device 24 incorporates a delay mechanism to prevent operation due to normal pressure fluctuations associated with support advancing operations. A further contact 27 is engaged by the pointer 21 should a low pressure in the line 11 occur at any time for more than a predetermined period. Specification 991,008 also is referred to.
Patent GB-179470-A (GB)
Title: Collapsible sawing horse
IPC: B27B17/00
Filed: 1921-07-28
Abstract: 179,470. Hiskins, W. July 28, 1921. Trestles.-A collapsable saw-horse is formed of three pairs of pivoted legs A, connected together by cross supports D, and capable of being opened to an adjustable extent and held in position by a chain H fixed to one leg at B and secured to a catch C on one of the other legs. The intermediate pair of legs is nearer to one of the end pairs than to the other, so that short logs can be supported between the two pairs of legs that are near together. A chain H may be used for each pair of legs.
Patent GB-668333-A (GB)
Title: Herbicide-resistant coated seeds
IPC: A01C1/00
Filed: 1949-08-03
Abstract: Seeds are rendered herbicide resistant by coating with a substantially spherical layer of a porous, highly adsorptive substance e.g. activated carbon, silica gel, zeolite, alumina and a water-soluble binder by spraying with a water-soluble plastic e.g. methyl cellulose, polyvinyl alcohol, sodium alginate and then rolling and tumbling in the adsorptive substance. Hormone plant stimulants, fertilizers and trace mineral elements may also be incorporated. Specification 599,445 is referred to.
Patent GB-823964-A (GB)
Title: Improvements relating to electric contact brushes
Inventor: PARRISS WALTER HENRY
IPC: H01R39/22
Filed: 1956-07-02
Abstract: 823,964. Impregnated electric contact brushes. BRITISH THOMSON-HOUSTON CO. Ltd. June 18, 1957 [July 2, 1956], No. 20419/56. Class 140. Porous electric contact brush material has sodium pyrophosphate incorporated in it and contains also a subsequently introduced polyester resin polymerized to a substantially solid state in the brush, e.g. by the action of heat in the presence of a catalyst. The contact brush may consist of carbon, graphite or metalgraphite brush material. The sodium pyrophosphate may be incorporated in the brush material by impregnating the material with a solution of disodium hydrogen phosphate, drying and subsequently heat treating to convert it to the pyrophosphate. This impregnation may be carried out by boiling the brush in the solution or by vacuum-pressure means. An unsaturated polyester resin prepared from dipropylene glycol, maleic anhydride and tetrahydrofurfuryl alcohol and dissolved in styrene and quinone may be used. Impregnation with the resin may be preceded by baking the brush and may be carried out by dipping or by vacuum-pressure means. Specifications 742,018 and 793,455 are referred to.
Patent GB-1090489-A (GB)
Title: Friction drive transmission
IPC: F16H15/20
Filed: 1966-05-09
Abstract: 1,090,489. Variable-speed friction gear. D. G. GOLDWASSER. May 9, 1986, No. 20448/66. Headings F2D and F2Q.  In a variable-speed friction gear comprising an input cone 10 driving an output shaft 14, having its axis parallel to the cone taper, through a disc 26 slidably splined at 24 thereon, the rim of the disc 26 is formed by a number of rollers, barrelled to suit the disc periphery, and carried by spindles (29), Fig. 3 (not shown), in radial lugs (27) formed on the disc 26, the arrangement allowing the disc surface to be axially rolled along the input cone surface for ratio change, axial movement of the disc being effected by a yoke 32 which moves the disc axially along the splined output shaft 14.
Patent GB-1047933-A (GB)
Title: Catalysts
IPC: H01M4/90
Filed: 1963-05-22
Abstract: A process for making a finely divided alloy comprises adding a solution of the salts of two or more different metals to a solution of an alkali metal boro-hydride.  The metals are selected from the group consisting of Ru, Rh, Os, Pt, Pd, Ir, Au, Ag, Fe, Co, Ni, Mo, Cr, Mn, W, Ti, Re, Zn, Cu, Cd and V and the solvents used may be water alcohols ketones ethers or glycols.  The process may be carried out at a temperature up to the boiling point of the solutions.  The product may be used as a catalyst for vapour phase oxidation, dehydrogenation, dehydration, hydrogenation, cracking and isomerization and is especially useful in electrochemical oxidation and reduction reactions.  Various platinum group metals are described.
Patent GB-976650-A (GB)
Title: Cutting tool feed mechanism
Inventor: BROWN ROGER WHITTELSEY
IPC: B23B47/18
Filed: 1962-05-29
Abstract: 976,650. Automatic lathes. CONE AUTOMATIC MACHINE CO. Inc. May 29, 1962, No. 20576/62. Headings B3C and B3T. In addition to conventional tool turret feed mechanisms on multi-spindle lathes feeding means may be provided and incorporated with the known means to permit the feeding of either a single or a number of cutting tools in a particular machining operation. The additional feeding means comprises cam housings 74, 76, for rotatable feed cams 80, 82, which are movable with drill spindles 25, 27 and 29 along the turret towards and away from the workpieces. The cams have identical contours and are formed to provide the precise movement and dwell of the cutting tools in relation to the work. Slow feed and rapid withdrawal of the tools are effected through gear drive 146, 140 and bevel gears 142, 150, respectively, from the input shaft 115, and the drive is transmitted to the cam-shafts 122, 124 by chain 116 and sprockets 118, 120. Alternate engagement of the high and low speed drives is effected by high and low speed clutches 148 and 160 which are actuated through a lever 176 by a fluid motor 180. The engagement of the respective clutch is effected by a cam-operated switch 200 in co-operation with other timing switches (not shown) which facilitates timing and sequential operation of the device.
Patent GB-387242-A (GB)
Title: Improvements in and relating to ear swabs
IPC: A47K7/02
Filed: 1932-07-21
Abstract: 387,242. Ear-swabs. MEIS, M., 8 III, Schweigerstrasse, Munich, Germany. July 21, 1932, No. 20620. Convention date, July 24, 1931. [Class 81 (ii).] An ear-swab comprises a rod 5 of twisted or compressed fibrous material, such as cotton-wool, the end of which, after each use, is cut off, shaped to a point, and then teased out. The rod may have a removable paper wrapper and is preferably slidably supported in a plug 6 of rubber, inserted into a casing 1 slotted at 4, the slotted end being contracted, to hold the plug, by a slidable ring 3. In another construction the plug is divided longitudinally the two halves being provided with tapered lower portions which are removably inserted into a tapered tubular casing.
Patent GB-184056-A (GB)
Title: Improvements in water heaters
IPC: F24H1/28
Filed: 1921-08-03
Abstract: 184,056. Stimson, E. F. Aug. 3, 1921. Internally-fired boilers.- A waterheater has an horizontal approximately cylindrical part a which may be a helical tube surrounded by a cylindrical jacket b inter-connected as at e. The gases from a burner c pass around the inner vessel a and are bafffed by an arched metal plate h fitting close to the wall of the jacket b at the sides and spaced apart from the top to provided a flue space i to which access is obtained by slots j in the flanks of the plate. The battle-plate bears ribs l between the slots and ribs m on the upper surface in the flue space i. Water to be heated enters at f and is delivered at g.
Patent GB-1478927-A (GB)
Title: Deformation resistant shielding composition
IPC: C08L23/06
Filed: 1975-05-15
Abstract: 1478927 Semi-conducting compositions UNION CARBIDE CORP 15 May 1975 [16 May 1974] 20706/75 Heading C3P Semi-conducting insulation shielding compositions comprise (a) 25 to 60 weight per cent of a thermoplastic ethylene copolymer of density 0À910 to 0À940 g./c.c. and containing 2 to 35 weight per cent of vinyl acetate, propionate or butyrate, acrylic or methacrylic acid or a C 1-8  alkyl acrylate or methacrylate, (b) 3 to 20 weight per cent of a thermoplastic crystalline resin having a melting point of at least 115 C. and which is a propylene polymer or an ethylene polymer having a density of at least 0À940 g./c.c., (c) 5 to 35 weight per cent of a thermoplastic elastomer and (d) 30 to 50 weight per cent of conducting carbon black, provided that the weight ratio of (b) to (c) is 1 : 1 to 1 : 3. The compositions may contain conventional additives, e.g. antioxidants. Examples describe compositions comprising ethylene/ethyl acrylate copolymers, high density polyethylene or isotactic polypropylene, ethylene/propylene/ hexadiene - 1,4 terpolymer rubber, carbon black and polymerized 1,2-dihydro-2,2,4-trimethyl quinoline.
Patent GB-1277708-A (GB)
Title: Improvements in or relating to mountings for rocker arms
IPC: F02M39/02
Filed: 1971-04-19
Abstract: 1277708 Valve cylinder MOTOREN-UND TURBINEN-UNION FRIEDRICHSHAFEN GmbH 19 April 1971 [28 Feb 1970] 20753/71 Heading F1B Mounting for rocker arms for actuating an individual fuel-injection appliance and valves arranged on the cylinder head of an I. C. engine comprises a lower supporting member 1 on which the valve rocker arms (not shown) are pivotally mounted and an upper supporting member 2 on which the rocker arm 4 for the fuel injection device 5 is pivotally mounted on a shaft 3. The lower member 1 is held to the cylinder head by bolts 10 which need be dimensioned to withstand only the static valve spring forces and the load imposed by cranking the engine without starting it. Since the bolts 13 which secure the upper member 2 pass through the lower member into the cylinder head. When the bolts 13 are removed the fuel injection device can be removed without disturbing the valve gear,
Patent GB-1330421-A (GB)
Title: Measuring arrangement for determing blood characteristics
IPC: G01N21/85
Filed: 1971-04-19
Abstract: 1330421 Electro-chemical and photo-electric testing of blood MEDICOR MUVEK 19 April 1971 2 Feb 1970] 20766/71 Headings G1A G1N Apparatus for the simultaneous optical and electro-chemical measurement of blood samples to determine the haemoglobin and haematocrite content comprises a pair of optical prisms P 1 , P 2  mounted in parallel spaced relationship as shown and with electrodes F 1 , F 2 , Fig.2 (not shown) formed on the opposing faces e.g. by vacuum deposition. A pencil beam of light from source 1 is transmitted by the prisms through a blood sample and up to a colour filter 5 and photo-electric sensor 6. The prisms are closely spaced to hold a drop of undiluted blood by surface tension. For a diluted sample a wider spacing may be used with a sample container Fig.3 (not shown).
Patent GB-1029187-A (GB)
Title: Improvements in the spectrum analysis of metallic samples in open air
IPC: G01N21/67
Filed: 1963-05-24
Abstract: 1,029,187. Arc lamps. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. May 24, 1963 [June 4, 1962], No. 20779/63. Heading H1X. The surface of a metal sample for spectrographic analysis is covered by a continuous stream of a non-oxidizing gas (helium, argon, nitrogen, hydrogen or a mixture of them) flowing tangentially to the surface. The gas may be supplied through a duct to an outlet slot between the faces of a member mounted on the electrode support and partly surrounding the sample surface. This gas blanket is said to reduce the background (esp. cyanogen), to enhance specimen luminosity and to render the analysis more reproducable.
Patent GB-652186-A (GB)
Title: Method of and composition for waterproofing textiles and fibrous cellulosic materials
IPC: D06M11/76
Filed: 1948-08-06
Abstract: Zirconium-ammonium carbonate is obtained by adding crystals of zirconium sulphate to a solution of ammonium carbonate which may contain ammonium hydroxide.  Zirconiumammonium or -sodium carbonate may be obtained by precipitating zirconium carbonate from a solution of ammonium or sodium carbonate by adding a solution of zirconium oxychloride, washing and filtering the precipitate and adding to it ammonium or sodium carbonate.
Patent GB-277303-A (GB)
Title: Improvements in or connected with the reproduction of recorded sound
IPC: G11B7/00
Filed: 1927-08-08
Abstract: 277,303. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). Sept. 11, 1926, [Convention date]. Optical apparatus.-In apparatus for reproducing photographically-recorded sound, in which a relatively large slit 4 is situated between the light source 1 and the record film 6, and a relatively small slit 5 is placed between the film and the photo-electric cell 15, protective shields of transparent material, such as glass or mica, are placed on one or both sides of the slit 5. The slit 4 may be made of hard, polished steel, being in close proximity to or in contact with the film, while the slit 5 is arranged a short distance away from the film. A condensing lens or lenses 2 focus the light upon the slit 5, or, as shown in the Figure, upon the record itself. In the latter case, an enlarged image of the photographic sound record is thrown upon the slit 5, whereby the slit has a greater analysing power. The width of the slits 4, a may be about #in. and 0.001 in. respectively, the distance of the slit 5 from the film being of the order of #in. to “in.
Patent GB-600490-A (GB)
Title: Manufacture of solutions of polyvinyl derivatives
IPC: C08K5/36
Filed: 1945-08-14
Abstract: Polymers and copolymers of vinyl chloride with, for example, vinyl acetate, are dissolved in a solvent mixture of two or more organic liquids, 9-70 per cent by volume of carbon disulphide being present. As the other organic liquid methylene chloride, di-, tri- and tetrachlorethane, chlorbenzene, tetrahydrofurfuryl alcohol, acetone, methyl ethyl ketone, cyclopentanone, cyclo - hexanone, ethyl acetate, benzyl acetate, methyl salicylate, nitrobenzene, glycol formal, 1 : 4-dioxane, isophorone, triacetin, tetrahydrofurane and ethylene oxide, are specified. Hydrocarbons may also be used.  The solutions may be prepared under pressure at a temperature higher than the boiling point of any of the solvent components.  Plasticizers, pigments and colouring may be added.  The solutions may be used for spinning filaments, casting films or making straws or varnishes.
Patent GB-901829-A (GB)
Title: Improvements relating to nuclear magnetic resonance apparatus
Inventor: WATSON EDWARD
IPC: G01R33/36
Filed: 1958-06-30
Abstract: 901,829. Nuclear resonance-testing apparatus. FAIREY CO. Ltd. Oct. 14, 1958 [June 30, 1958], No. 20902/58. Class 37. A nuclear magnetic resonance detector comprises a test coil in a transverse magnetic field and adapted to receive a test specimen the test coil being coupled to a radio frequency generator and forming part of a tuned circuit in a feed-back loop which increase the effective Q of the tuned circuit. In Fig. 1, a specimen 11 is inserted in a coil 10 located in the field of a magnet 12 and coupled to a R.F. generator circuit 13. The coil being tuned by capacitors 18 and 19 and coupled to a detector circuit 20, 40, 41, 42, 43. The magnetizing current of the magnet 12 is varied in saw-tooth fashion by means of a generator 16 so that the nuclear resonance frequency is varied through a range which includes the frequency of an R.F. generator. When the two frequencies are the same, energy is absorbed from the R.F. generator 13 and a corresponding indication is obtained in the meter 43 or a cathode-ray tube circuit connected in its place. The tuned circuit 10, 18, 19 is connected to the valve 20, in Colpitts fashion so as to provide positive feed-back and so increase the effective Q of the circuit and the sensitivity of the apparatus. A negative feed-back resistor 24 is provided to stabilize the circuit and this is adjustable to enable the gain to be set to a value just below that which causes the circuit to oscillate. In an alternative circuit (Fig. 3, not shown), the adjustment is effected by varying the screen potential of valve 20. The Specification also describes a circuit as disclosed in Specification 901,827 in which a different method of detecting nuclear resonance is used, the detector coil being connected in a circuit similar to Fig. 1 (Fig. 2, not shown). The radiofrequency generator may be crystal-controlled and may provide a harmonic series of frequencies so that a single crystal may be used to cover a wide frequency range, interpolation between the harmonics being effected by a magnetic shunt, as described in. Specification 901,828.
Patent GB-614299-A (GB)
Title: Improvements in containers such as hotwater bottles and ice-bags
IPC: A61F7/08
Filed: 1946-07-12
Abstract: 614,299. Hot-water bottles. LOBL, F. July 12, 1946, No. 20929. [Class 64(ii)] Relates to rubber hot-water bottles in which one wall has a mouth engaging with a plug on the inner surface of the opposite wall to close the bottle. According to the invention, the plug 24 has a flange 26 which is rolled back over a flange 16 on the mouth 14 to provide sealing engagement between the plug 24 and the mouth 14. The opening or mouth 14 is placed towards one end of the bottle in the wall 10, which has a rib 20 seating in a groove 22 around the base of the plug 24. The mouth 14 and plug 24 are complementarily tapered and the flange 16 on the mouth 14 has a bead 18 over which the plug flange 26 is rolled. This plug flange 26 has a bead 28. Flaps 30, 32 are provided on the bottle walls 10, 12 to facilitate opening and handling of the bottle. The beads on the flanges may be omitted. The plug may be integral with the wall 12 or cemented to it, and the plug flange may be cemented to the plug or integral with it. A metallic ring may reinforce the mouth flange.
Patent GB-216407-A (GB)
Title: Improvements in skirts, petticoats or like garments
IPC: A41B9/10
Filed: 1923-08-20
Abstract: 216,407. Vilandrer, A. L. Aug. 20, 1923. Skirt parts; petticoats.-A skirt petticoat, or like garment, has front and rear vertical panels 3, 4, Figs. 1 and 2, made of substantially opaque material to conceal the legs. The panels extend upwards to points adjacent the abdomen. The upper ends of the panels may be connected by a cross strap 7 integral with the panels or attached thereto by fastenings. The cross strap may serve to carry catamenial appliances, and may be adjustable in height by the use of buttons &c. on the panels.
Patent GB-1498432-A (GB)
Title: Method of producing a packaging material
IPC: B65D75/50
Filed: 1975-05-19
Abstract: 1498432 Finishing edges TETRA PAK INTERNATIONAL AB 19 May 1975 [22 May 1974] 21150/75 Heading B5K [Also in Divisions B8 and D1-D2] The edge portion of a packaging material sheet, formed of or incorporating a layer of fibrous absorptive material is impregnated with an aqueous composition comprising a vinyl polymer having reactive groups and a halometallic Werner type complex. The polymer and complex react together to form a film on the edge which is resistant to oil, grease, water and solvents. The composition may be applied by spraying, brushing &c. on to one side of a storage roll of the material, which is preferably a laminated paper.  A packaging container may be fabricated from the edge-imprengated material by forming the web into a tube, joining the edges in an overlap seam 17, Fig. 1, filling the tube with goods to be packaged, further sealing along zones 15, 16 and cutting into individual units, the arrangement of the overlap seam 17 being such that the impregnated edge of the material is exposed to the inside of the package. The polymer may be a homopolymer or a copolymer of vinyl alcohol, vinyl acetal, vinyl acetate, vinyl pyrrolidone or acrylic acid or is polyethylene. The preferred vinyl polymer is a polyvinyl alcohol, preferably fully hydrolysed. The preferred complex is a chrome complex of a fatty acid (10-20 C).
Patent GB-831102-A (GB)
Title: Improvements in or relating to thickness gauges
IPC: G01B7/06
Filed: 1958-07-02
Abstract: 831,102. Electric tests. GENERAL MOTORS CORPORATION. July 2, 1958 [Aug. 29, 1957], No. 21179/58. Addition to 804,339. Class 37. Apparatus for determining the thickness of a lamina of an electrically-conductive material of the type described and claimed in the parent Specification in which a variable frequency oscillator sweeps a predetermined frequency band and is coupled to an inductance for inducing eddy currents in the part under test which penetrate to a depth related to their frequency, is improved so that the abrupt change in loading on the oscillator when the eddy currents penetrate the lamina block the oscillator, the blocking producing square wave pulses the mark-space ratio of which is determined by the frequency at which oscillation commences. As shown, oscillator 2 is caused to sweep through a predetermined frequency range by a sawtooth waveform derived from a modulator 4 at the frequency of the A.C. mains supplying the device. The variable frequency output is applied to inductance 6 in contact with the test-piece. Penetration by the eddy currents change the oscillator load abruptly and block it, producing pulses 22 in the oscillator anode circuit. These pulses are shaped at 8 to produce spikes 24. These spikes are again shaped and amplified at 10, and fed as spikes 16 to bi-stable circuit 14. At the same time sawtooth generating circuit 4 produces a series of spikes 28 and the arrangement is that the bi-stable circuit is set in one state by a pulse 26 producing square wave pulse 30 and to the other by pulse 28 which then terminates the square wave pulse. The mark-space ratio of the square wave pulses depends on the instant during the frequency sweep at which the discontinuity in the oscillator output occurs. The square wave pulses are averaged by meter 30 calibrated in terms of thickness.