baber/WOPTO huggingface dataset:
Patent GB-790475-A (GB)
Title: Optical projection apparatus
Inventor: ENGELHARD NOE NORBERT
IPC: G03B27/62
Filed: 1953-05-04
Abstract: 790,475. Photographic projection-printing apparatus. GNOME PHOTOGRAPHIC PRODUCTS, Ltd. April 26, 1954 [May 4, 1953; Dec. 1, 1953; Jan. 7, 1954], Nos. 12268/53, 33386/53 and 486/54. Class 98(1) In an optical-projection apparatus a focusing aid produces apparent doubling or staggering of parts of the out of focus image of a test object having opaque areas sharply demarcated from transparent areas. On focusing, the staggered or duplicated parts of the image are such to come into alignment or coincidence to produce a single sharp image of the test object. The test object described is a slit 26 arranged on a slide 17 carrying a photographic negative carrier 16. The position of the slit can be adjusted to coincide with the plane of the negative by screw 31. The focusing aid may consist of a straight wire immediately below and parallel to the slit, and the wire may alternatively extend from the corner of an opaque shield. In a preferred form. the focusing aid is an apertured plate 37 the line 41 defined by apertures 38, 39 and 40 being parallel to and immediately below the slit. The effect of this focusing aid on the cut of focus image of the slit is illustrated in Figs. 6b and c of which Fig. 6c is nearer to correct focus. According to the Provisional Specification a focusing negative may be used with a focusing aid in the form of two spaced windows which may have differently coloured filters in them. Alternatively the coloured filters may be contiguous. A focussing aid in the form of two spaced windows may be fitted as a lens cap to an enlarger or mounted in the position of the usual red safety filter. Alternatively, a retractable opaque strip may be pushed across the lens of an enlarger.
Patent GB-405243-A (GB)
Title: Improvements in and relating to inspection apparatus
IPC: B07C5/34
Filed: 1932-04-28
Abstract: 405,243. Photometric apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Ludwigsen, L. L. ; 787, State Street, Schenectady, New York, U.S.A.) April 28, 1932, No. 12273. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 30, 1932]. [Class 97 (i).] In inspection and selection apparatus of the type which comprises an electric circuit including a photo-electric cell exposed to light reflected from the surface of articles passing in succession under the source of light, means are provided for directing light of uniform intensity into the photo-electric cell during the intervals between the articles so as to avoid false operation of the device. The device is described as applied to the selection of cans 3 which are provided with opening keys 4 so as to eliminate those cans which have not the key attached. The cans are passed by a conveyer belt 1 under a light source 7 and the light reflected from the surface is directed into a photo-electric cell 6, in circuit with a solenoid 10 adapted to actuate a spring-controlled push-rod 11. The diminution of light intensity caused by the interposition of a key, which is of darker colour than the can surface, energizes the solenoid and causes the rod to discharge the can into a shoot 13. Where the key is missing, the solenoid circuit is inactive and the corresponding can passes to the shoot 16. To cover the intervening spaces, an additional light source 17, or a mirror reflecting the light from the source 7, is provided.
Patent GB-1465789-A (GB)
Title: Cast wall element and its method of manufacture
IPC: E04B2/00
Filed: 1974-03-20
Abstract: 1465789 Wall slabs G ICKES 20 March 1974 [24 Dec 1973] 12312/74 Heading E1B Wall elements comprising a hard smooth faced foamed plastics layer 9, metal reinforcement 10 and 13 and a cement concrete layer are manufactured by -laying in a mold 1-4. Preferably the mold is moved from the horizontal to the vertical position between introducing and setting of the foam and the introduction of the concrete. A further lost or removable core 14 may be introduced. Flank portions 8 of foam may extend for the full thickness of the element, being produced by lost shuttering strips 7. Cores 6 may be used to form openings 5. The foam is preferably polyurethane having a density of 50 kg/m<SP>3</SP> and may have a protective coating.
Patent GB-1518780-A (GB)
Title: Electroplating with nickel an/or cobalt
IPC: C25D3/14
Filed: 1977-03-23
Abstract: 1518780 Electro-depositing iron-containing nickel and/or cobalt M & T CHEMICALS Inc 23 March 1977 [17 June 1976] 12317/77 Heading C7B Ni and/or Co with or without Fe metal or alloy is electro-deposited from an aqueous acid electroplating solution containing one or more compounds (e.g. sulphate, chloride, sulphamate or fluoborate) of the metal(s) to be deposited and 5 x 10<SP>-6</SP> to 0À5 mole/l of at least one # and/or γ-substituted sulphone; many examples are specified. The solution may also contain brighteners, e.g. aromatic sulphonate, sulphonamide or sulphonimide and diethoxylated or dipropoxylated 2-butyne-1, 4-diol, anti-pitting or wetting agents e.g. Na lauryl (ether) sulphate, and iron complexing or chelating agents. The anodes may comprise chunks of the separate metals in Ti baskets.
Patent GB-1523696-A (GB)
Title: Suction cleaner nozzle having two tools which can be alternatively employed
IPC: A47L9/06
Filed: 1977-03-23
Abstract: 1523696 Suction cleaner nozzles VORWERK & CO INTERHOLDING GmbH 23 March 1977 [23 March 1976] 12328/77 Heading A4F A suction cleaner nozzle of the kind in which one tool, e.g. a brush 14, is extendable from a retracted position in the nozzle housing 2 into a latched working position (as shown), in which it projects from the housing beyond another tool, e.g. a flat rigid tool formed by a plate 16, by operation of a knob 17, includes a parallelogram linkage for transmitting movement of the knob to the brush 14, the linkage being constituted by the baseplate 8 of the brush, two parallel members 3, 4 (one on each side of the suction hose connector 5 of the nozzle) pivotally connected at 6, 7 to the base-plate 8, and two parallel rods 11 (only one shown) connected between projecting arms 9, 10 of the members 3, 4. When the knob 17 is pressed against the bias of spring 20, fins 18 engage bars 21 (22), Fig. 3, (not shown), of the member 3 and pivot it and, via rods 11, the member 4, the arms 9, 10 running along ramps 23A, 23 into step grooves (25), Fig. 1 (not shown), so that the brush is extended and latched. To retract the brush the knob is pressed again whereupon a resilient tongue 19 engages a depression 28 in the member 3 causing the members 3, 4 to pivot counterclockwise assisted by springs 15. The member 4 has two distinctive surfaces 29, 30 one or other of which is visible through a window 31 in the housing to indicate whether the brush is extended or retracted.
Patent GB-567813-A (GB)
Title: Improvements in and relating to frequency-modulated receivers
IPC: H03D3/26
Filed: 1943-07-30
Abstract: 567,813. Frequency modulation. MULLARD RADIO VALVE CO., Ltd., and RICHARDS, C. L. July 30, 1943, No. 12407. [Class 40 (v)] In a receiver for frequency-modulated waves, the carrier is applied to a limiter valve V, the output circuit of which includes an inductance 5 coupled inductively to an inductance 6, either or both coils being tuned at or near the carrier frequency. The two coils are also connected by a condenser C<4> so that they form a series circuit including the diode rectifier 7 shunted by a load resistance R <5>. The detected signal V<0> is taken across the resistance R <5> through a filter R<3>, C<2> for removing the carrier component. As the incoming carrier varies in frequency, the phase relation between the voltages across the coils 5, 6 varies from its normal quadrature relation, causing a change in the amplitude of their vectorial resultant. The limiter V may be a pentode, and its limiting action obtained by the inclusion of a condenser C3 shunted by a resistance R4 in its grid circuit, or by other means. ' Anode voltage for the pentode may be derived from resistances R<1>, R2 across the H.T. supply, the resistance R<1> being shunted by a condenser C<1>. The rectifier may be included in the pentode envelope. The secondary circuit including the inductance 6 may be damped by a resistance R<6>. Specification 489,094 is referred to.
Patent GB-1333198-A (GB)
Title: Polymers
IPC: C08F2/00
Filed: 1972-03-16
Abstract: 1333198 Drying and chain-branching polymers E I DU PONT DE NEMOURS & CO 16 March 1972 [8 April 1971] 12420/72 Heading C3P A process for simultaneously drying and chainbranching vulcanizable, substantially linear elastomeric polymers comprises introducing the polymer into one end of an open-barrel screw press dryer having a water-vaporizing section, introducing a chain-branching promoter selected from organic peroxides and hydroperoxides, sulphur and sulphur-releasing compounds into the water-vaporizing section at one or more points on the barrel and forwarding the resulting mixture at an elevated temperature through the water-vaporizing section to form a vulcanizable branched elastomeric polymer. The polymer may be an EPDM elastomer, particularly an ethylene/propylene/hexadiene- 1,4-copolymer, and the promoter may be sulphur or a sulphur releasing compound, e.g. 4,4<SP>1</SP>- dithiodimorpholine and dipentamethylene thiuram hexasulphide, in admixture with accelerators, e.g. guanidines and thiazoles. The promoter is preferably added in a naphthenic processing oil. Apparatus suitable for carrying out the process of the invention is described and illustrated. The products may be mixed with high unsaturation elastomers, e.g. natural rubber, butadiene/styrene rubber, polyisoprene and neoprene, to provide compositions containing 10 to 50 weight per cent of the branched elastomer. The mixtures may be vulcanized.
Patent GB-872893-A (GB)
Title: Improvements in antifungal compositions
Inventor: COATES LAURENCE VANN
IPC: A61K31/165
Filed: 1958-04-19
Abstract: A pharmaceutical preparation for application to the skin and having anti-fungal properties comprises at least two of the following components: (a) a 2-alkyloxyacetophenone, (b) a 2-alkyloxybenzamide, and (c) a keratolytic agent.  The alkyl group in (a) and (b) preferably contains 3 to 6 carbon atoms, n-amyl and n-hexyl being specified.  Keratolytic agents specified are salicylic acid and urea. The preparations may contain a liquid solvent or be formed into ointments, jellies or dusting powders, a methyl cellulose/ethanol gel being preferred.  Other carriers and additives include glycerol, lanolin, white oil, microcrystalline wax, soft paraffin, propylene glycol, acetone, isopropyl alcohol, magnesium stearate and talc. Specifications 726,786, 872,891 and 872,892 are referred to.
Patent GB-991343-A (GB)
Title: Two-shear edge trimmer for sheet metal
IPC: B23D31/04
Filed: 1963-03-29
Abstract: 991,343. Shearing. SCHLOEMANN A.G. March 29, 1963 [March 31, 1962; April 21, 1962], No. 12487/63. Heading B3W. An edge trimming machine for metal sheets has two shears facing each other at a distance that can be adjusted, each shear comprising a swing frame of C-shaped cross-section in which the top blade slide moves in guides and in which the bottom blade is rigidly fixed and means for swinging the frame sideways away from the cut edge of the sheet, after the cut. The sheet 2 to be trimmed passes along a roller table 1 between shears 3 and 4, a motor 5 and screw 6 controls the distance between the shears. The swing frame 8 is mounted in a housing 7 on a shaft 24, which has a crank connected by a rod 28 to the top blade slide 10. The shaft 24 is driven by reduction gearing from two motors 11 and 12 coupled by a common shaft 15. The parts of the shaft 24 forming the bearings for the swing frame may be slightly eccentric in order to move the bottom blade downwards after the cut. The bottom of the frame 8 is moved away from the cut edge of the sheet by a fluid operated piston 36, the fluid supply to which is controlled by a cam-shaft driven from the shaft 24. Hydraulically actuated hold-downs 37 are synchronized with the movement of the piston 36. The blades 31 and 32 have transverse cutters which crop the trimmed-off material into lengths. In a modification the top-blade is lowered by a single hydraulic cylinder and raised by separate cylinders located on either side of the pressure cylinder. In this construction the lower end of the frame is pulled away from the cut edge of the material by a fluid pressure cylinder attached to the lower rear part of the frame.
Patent GB-1279197-A (GB)
Title: Improvements in or relating to shuttleless looms
IPC: D03D47/23
Filed: 1970-03-16
Abstract: 1279197 Shuttleless looms LINDAUER DORNIER GmbH 16 March 1970 [11 Nov 1969] 12506/70 Addition to 1267860 Heading D1E The gripper heads 2 of the weft inserters of the loom of the parent specification are modified by having attached thereto a stepped abutment member 6, carrying an elastic ring 9, for the movable clamping jaw 3. The member 6 has a flange 6" retaining the ring 9, which latter can be advanced around the member 6 to provide a fresh abutment surface.
Patent GB-550734-A (GB)
Title: Improvements relating to valves or cocks
IPC: F16K1/36
Filed: 1941-09-26
Abstract: 550,734. Valves. HUBBARD, A., and RUBBER BONDERS, Ltd. Sept. 26, 1941, No. 12522. [Class 135] A lift valve member, particularly adapted for use in bib-cocks comprises a metal member bonded by vulcanization to a natural or synthetic rubber member adapted to engage the valve seat. In the form shown in Fig. 1 the metal member has a stem b adapted to engage a socket c in the end of a screwed actuating spindle and a flange a at one end to which the rubber member f is bonded. The rubber member may be hefispherical, conical or frustoconical in form, and may have a bore extending upwardly from its seating face.
Patent GB-893421-A (GB)
Title: Method for the continuous cleaning of carding machine clothing
IPC: D01G15/76
Filed: 1958-04-21
Abstract: 893,421. Stripping carding engine rollers. BOTTINI, G. April 21, 1958, No. 12572/58. Class 120(1) The clothing of the main cylinder of a carding machine is continuously cleaned by applying vacuum to the cylinder at a zone where no carding operation is effected and the fibre sucked from the clothing is redirected on to the upper part of the doffer. As shown, aligned suction nozzles A, B, C cover the whole width of cylinder 1 and are provided with suction openings A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>, Fig. 2, spaced apart by a distance which is a multiple of, as shown, twice, the width of the openings. Conduits A<SP>2</SP>, B<SP>2</SP>, C<SP>2</SP>, Fig. 1, connect A, B and C respectively to a rotary distributer N which is also connected by conduits D<SP>1</SP> to a suction fan D and by conduits G<SP>1</SP>, F<SP>1</SP>, E<SP>1</SP> to fans G, F, E. The latter communicate via dust filters P and conduits E<SP>2</SP>, F<SP>2</SP>, G<SP>2</SP> with outlets H, L, M aligned, as indicated in Fig. 2, to cover the whole width of the doffer 4. Distributer N provides the following operative cycle: (a) nozzle A is connected to fan D, and fibre removed from bands of cylinder 1 opposite openings A, is collected in a chamber within the distributer bounded by a filter diaphragm 5; (b) the chamber is then connected to conduit F<SP>1</SP> ,  so that the fibre is fed through outlet L on to doffer 4 over a different axial zone from that on which it was removed from cylinder 1; (c) fibre is drawn similarly, in succession, through nozzles B and C and deposited through outlets H and M respectively. At the end of the first and second cycles, nozzles A, B, C, are axially displaced by a distance equal to the width of openings A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>; after the third cycle, the whole width of the cylinder has been covered and the nozzles are returned to their initial position for a repetition of the cycles.
Patent GB-232059-A (GB)
Title: Improvements in confectionery manufacturing apparatus
IPC: B30B11/08
Filed: 1924-05-22
Abstract: 232,059. Newham, G., and Hillary, H. B. May 22, 1924. Stream-cutting machines; rolling machines; rotary-mould-table machines.-A rope of plastic confectionery is formed into sweets by passage between a pair of rings b, c having recessed peripheries forming teeth d to divide the mass, the ring c also carrying spring dies a reciprocable by cam rollers to shape the sweets. The rope g passes through an equalizing and rounding device A comprising a pair of fibre sheaves h, i, Fig. 3, driven through bevel gears j, k and adjustable by a handwheel n.
Patent GB-276070-A (GB)
Title: Improvements in and relating to planographic printing plates having mercurised ink refusing areas for photo-mechanical printing
IPC: B41C1/16
Filed: 1926-05-18
Abstract: 276,070. Trist, A. R. May 18, 1926. Printing-surfaces.-In a printing-plate having mercurial ink-repelling areas and comprising upper and lower layers of metal supported by a metal base, the metal employed for the upper layer is unaffected by mercury and is soluble in an etching-fluid, whilst the metal employed for the lower layer is practically insoluble, in the etching-fluid and will amalgamate with mercury. Preferably iron or mild steel is employed for the base, and the upper and lower layers consist of chromium and copper or copper alloy respectively. In the manufacture of the plate, the iron base is immersed for two or three minutes as an anode in a 10 per cent solution of sulphuric acid and. is supplied with a current of high density, for instance 200 amperes per square foot. The base is then electrolytically coated with successive thin layers of nickel, copper, and chromium, the nickel layer causing the copper layer to adhere to the base. The layers of copper and chromium may be from three to ten thousandths, and from one to two ten-thousandths of an inch in thickness respectively. In the subsequent preparation of the plate a resist is applied locally to the chromium layer and an etching-fluid is employed to dissolve the exposed parts a suitable etching- fluid consisting of one volume of concentrated hydrochloric acid solution, and three volumes of glycerine. Gold or silver is then deposited on the exposed parts of the copper layer by treating the plate with a solution of cyanide of gold or silver. If the deposit does not fill the recesses in the chromium layer, the plate is employed as a cathode in the solution and current is passed until the deposit is flush with the surface. After washing and drying, the plate is polished with mercury and chalk, the mercury amalgamating with the gold or silver parts to form ink-repelling. areas.
Patent GB-103450-A (GB)
Title: Improved Means for Carburetting Air and for Regulating the Supply of Fuel to Internal Combustion Engines.
Inventor: GRACE CHARLES JEENS
IPC: F02M9/00
Filed: 1916-09-08
Abstract: 103,450. Grace, C. J. Sept. 8, 1916. Addition to 11830/15. Spray carburetters.-In the carburettor described in the parent Specification, fuel is supplied through capillary tubes, of which the number in action, as well as the supply of air, can be varied simultaneously. The improvement consists in mounting the tubes C in a sleeve valve D, which is actuated from the throttle-valve spindle H through links G. F., and has in its wall triangular air ports J which register more or less with trapezium-shaped ports K in the carburettor casing. The maximum area of the ports K may be varied by ports in a sleeve L, which may be adjusted angularly by an eccentric N on a spindle O. The tubes C have inlet apertures at different heights and pass through a plate B supported by the cover of the float chamber A.
Patent GB-1513117-A (GB)
Title: Firearms
IPC: F41A15/08
Filed: 1977-03-28
Abstract: 1513117 Small arm having laterally pivotable breech block B KALTENEGGER 28 March 1977 [24 April 1976] 12883/77 Heading F3C A small arm, for example a hunting rifle (see Fig. 1, not shown) or a match pistol (see Fig. 6, not shown) has a laterally pivoted chamber closing breech block 9 located in a recess formed in a lock casing screwed to the rear end of the barrel. A pair of web members 10, 11 extend over the upper part of the recess to stengthen the casing to enable cartridges up to maximum calibre to be fired. The trigger and ejector mechanism are located directly below the chamber which forms the rear part of the barrel and this dispostion shortens the length of the gun, whilst keeping conventional barrel length, by up to 20 millimeters. The block 9 pivots about a tube 13 and is relesably retained on the tube by a spring bolt 16, 17. Spring bolts 22 and 38 retain the block in its extreme positions .
Patent GB-400985-A (GB)
Title: Improvements in electrical measuring or relay apparatus, particularly for high potential circuits
IPC: H01F27/42
Filed: 1932-05-04
Abstract: 400,985. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, WELLINGS, J. G., Ricky, London Road, Dunchurch, and MAYO, C. G., 17, Alexandra Road, both in Rugby. May 4, 1932, No. 12885. Addition to 372,404. [Class 38 (v).] A relay energized from high potential circuits as described in the parent Specification is so connected that the magnetizing current of the potential transformer does not affect its action. In one arrangement, as shown in the Figure, the double primary winding 2, 3 is connected to the relay windings 11, 12, the common point of which is earthed. In another arrangement, the relay is supplied through a current transformer, the primary of which is connected to the windings 2, 3 and has its mid-point earthed.
Patent GB-125616-A (GB)
Title: Improvements in the Manufacture of Highly Concentrated Nitric Acid.
Inventor: LEITCH JOHN WALKER
IPC: C01B21/44
Filed: 1916-09-12
Abstract: 125,616. Leitch, J. W. Sept. 12, 1916. Acids, concentrating and distilling. - Highly concentrated nitric acid, such as 91 per cent acid, is prepared by distilling nitrate of soda or dilute nitric acid with relatively weak sulphuric acid as brown oil o:' vitriol of 84 per cent. strength, and passing the vapours through a fractionating- column or other dephlegmator so that water or the weaker acid flows back to the still. The temperature of the column may be regulated, as by a steam-jacket or by the heat of the vapours and the still, so regulating the strength of the distillate. The operation may be effected under reduced pressure.
Patent GB-118685-A (GB)
Title: Improvements in Spring Suspension for the Wheels of Side-cars and other Vehicles.
Inventor: RIGBY GEORGE EDWIN
IPC: B62K27/02
Filed: 1917-09-11
Abstract: 118,685. Rigby, G. E. Sept. 11, 1917. Guiding vertical play of axles; springs, arrangement of.-The wheel of a side-car or other vehicle is carried by a rear stay B pivoted to the main frame at C and connected to the frame at its free end by one or more pairs of links E and connecting-members M having long bearings F so as to prevent transverse movement. A spring H, preferably of the kind described in Specification 118,439, is secured in a housing G on the frame and is connected by links I to the upper ends of two arms L projecting from the stay B to prevent transverse movements of the links. The arms L are extended, as shown, beneath the stay to form lugs for the attachment of the members M. The stay B is formed as a frame N enclosing the wheel, and the pivot C extends through the forward end of the frame or through an extension of it.