baber/WOPTO huggingface dataset:
Patent GB-339091-A (GB)
Title: Improvements in devices for signalling excessive speed of prime mover shafts
IPC: G01P1/10
Filed: 1929-11-15
Abstract: 339,091. Krupp Germaniawerft Akt.- Ges., F. Dec. 1, 1928, [Convention date]. Centrifugal speed-indicators; particular speed alarms.-A device for giving an audible signal on the attainment of a certain speed by the shaft of a prime mover, e.g. before the rapid action shut-off apparatus acts on the rotor of a steam turbine approaching a dangerous speed, comprises, in a case B mounted on one of the bearings of the shaft A, a spring controlled bolt D one end D of which is movably mounted in a screw plug E and the other end d<1> of which moves to varying distances beyond the periphery of the shaft A depending on the speed of the shaft A so that at a predetermined speed the end d<1> contacts with one arm F of the double armed lever F, G to move the notch g<1> in the arm Gout of engagement with the nose k<1> on the rod K to release the piston L which, under the action of the spring P, compresses air in the cylinder M which is forced through the passage m<1> of the sound signalling device N. Re-engagement of the parts k', g<1> can be effected by means of the handle k<2>. The device can be tested during normal running of the turbine by releasing the rod R from the spring controlled bolt S and depressing it against the action of a spring r<1> to move the arm F.
Patent GB-647748-A (GB)
Title: Improvements in and relating to the hardening of the surface of metals or metal alloys
IPC: C23C10/58
Filed: 1947-12-31
Abstract: In a process of hardening a surface diffusion layer formed on a parent metal according to Specification 635,595 a hardening element having a small atomic diameter is incorporated to form hard interstitial solutions within the surface diffusion layer. The parent metal may be iron or an iron alloy and the surface may have Ti, V, Nb, Ta, Cr, Mo, or W diffused into it.  The hardening elements may be C, N, B or Si and carbon, for example, may be added to steel having a diffusion layer of tungsten by heating to p  above the Ac3 point (908 DEG C) in an atmosphere of hydrogen containing 8 per cent by volume of a mixture of 80 per cent propane and 20 per cent butane for 4 to 8 hours.  The Specification as open to inspection under Sect. 91 included also the use of titanium as a hardening element.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1587084-A (GB)
Title: Thiophene derivatives
IPC: C07D333/32
Filed: 1977-08-22
Abstract: Hypolipaemic 3-aminothiophenes of the formula <IMAGE> in which R1 is lower alkyl, aryl or aralkyl and R2 is lower alkoxy, and salts thereof are prepared starting from the corresponding 3-ketotetrahydrothiophene oximes. The resulting compounds of the formula I can be converted into the corresponding carboxylic acids or N-alkylated or N-aralkylated.
Patent GB-835102-A (GB)
Title: Improved invalid hoist
Inventor: ATKINS GEORGE
IPC: A61G7/10
Filed: 1955-12-07
Abstract: 835,102. Invalid lifting devices. METAL PRODUCTS (CARSHALTON) Ltd. Dec. 7, 1956 [Dec. 7, 1955], No. 35108/55. Class 78 (3). An invalid lifting device comprises a luffing jib b pivoted on the upper end of a pillar a which is mounted on wheeled base members j movable about pivots h by a screw k. The jib carries a seat supporting device x and is luffed by an hydraulic ram e<SP>1</SP>, c acting on the jib through a rod e and a sleeve d which is slidable along pillar a.
Patent GB-367457-A (GB)
Title: Improvements in oil engines
IPC: F02B21/00
Filed: 1930-11-22
Abstract: 367,457. Oil engines. LANG, F., 41, Laimerstrasse, Munich, Germany. Nov. 22, 1930, No. 35273. [Class 7 (iii).] A plurality of chambers a, or an annular sub-chamber, Fig. 8, disposed around the circumference of the cylinder communicates with the combustion chamber by passages f arranged approximately tangentially, so that the streams of air which enter the chamber during the compression stroke co-operate to produce an eddy motion as they re-enter the combustion chamber. The fuel nozzle d may be arranged centrally or laterally in the head of the cylinder as shown, in Figs. 4 and 10. The invention is applicable to two-stroke and four-stroke engines and to engines having opposed pistons. Specification 341,638 as open to inspection under Sect. 91 (3) (a) is referred to.
Patent GB-522259-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G5/16
Filed: 1938-12-03
Abstract: 522,259. Driving belts. BRAMMER, H. Dec. 3, 1938, Nos. 35306/38 and 10127/39. [Class 80 (i)] Laminated driving belts of the kind comprising a number of superimposed links in step-like arrangement and in which the links are connected by bolts and nuts, are characterized by a device for preventing the rotation of the bolt with respect to the belt. Where the bolt is replaced by a stud fixed to the outer or inner lamination, means are provided for preventing rotation of the nut on the stud. In Fig. 1, the links 1 are secured by bolts 2 having a portion 3 of the shank squared so that when forced into the hole it causes the latter to assume a square form 3a, but this form may be made in the first instance. In a modification, the shank of the bolt is of square form throughout. In Fig. 5, the shank 2 is round, but the head 4 is square and abuts the end of an adjacent link. The nut 5 is prevented from rotating by an upturned portion 7 of a washer 6 which abuts the end of an adjacent link. In a further modification, Fig. 6 (not shown), the bolt is again square and has a washer with a square hole and an upturned part to engage a side of the nut. In Fig. 7, a squared part 3 of the shank engages a square hole in a washer 6a which abuts an adjacent link. The nut 5 is prevented from rotating by a washer 6b which abuts an adjacent link and has a down-turned portion 7 engaging the nut. In further modifications, Figs. 8 to 13 (not shown), the bolt head or the nut is engaged by an upturned part of the washer which has (1) a projecting tail engaging a slot or recess in a link, or (2) another upturned or a downturned edge engaging a link. A suitable material for the washer is moist rawhide. Where a stud is employed, the nut may be held as described above, or it may have one or more projections adapted to engage recesses in a link or a washer. A nut may also be secured against rotation by hammering down a corner or other part which is made to bite into a link or a washer. One or more bolts or studs may be employed extending across the width of the belt and one transverse washer may engage all of them. Specification 490,602 is referred to.
Patent GB-430095-A (GB)
Title: Improvements in or relating to fusible electric cut-outs
IPC: H01H85/18
Filed: 1933-12-15
Abstract: 430,095. Fusible cut-outs. BULGIN, A. F., c/o A. F. Bulgin & Co., Ltd., Abbey Road, Barking, Essex, and STOTT, H. T., 17, Sylvan Avenue, Mill Hill, London. Dec. 15, 1933, No. 35351. [Class 38 (i)] In a fusible cutout of the cartridge type intended to be unaffected by current surges of short duration, the fusible element 1 is surrounded by a mass of material 4, such as granular or powdered sugar, starch or resin or mixtures of these, which liquefies under continued heating, the fusible element being thereby left without means for conducting away heat so that it quickly reaches fusion point. Pads 5 of absorbent material such as glass wool, powdered marble, &c. are provided for absorbing the material 4 when liquefied, or the tube 2 may have an absorbent lining or may itself be absorbent but with a glazed or other non-absorbent outer coating. The wire 1 is preferably of a material having a high coefficient of expansion so that on continued heating it bends and so comes into contact with a larger quantity of the filling material.
Patent GB-1409584-A (GB)
Title: Electronic digital clocks
IPC: G04G9/00
Filed: 1973-07-25
Abstract: 1409584 Digital clock ISE ELECTRONICS CORP 25 July 1973 35355/73 Heading G3T In an electronic clock, letters and digits are displayed by luminous display tubes, each including a grid, luminous electrodes and a cathode whose bias potential is varied so as to change the brightness of the display in accordance with the ambient light, as detected by a photo-electric element. As shown, the element 3 is a CdS cell or phototransistor that controls the cathode bias of tubes 1a to 2d, the element being connected to the centre tap of input transformer 5 or to the mid-point of the serially connected cathodes. The tubes, which display am, pm or a four digit time indication, are driven by a common decoder and driver 4 from binary coded time signals, with a separate grid drive 6 from counter 8, or are driven by individual driver-decoder circuits for each tube Fig. 3 (not shown).
Patent GB-1249934-A (GB)
Title: Improvements in or relating to collapsible metal tubes
Inventor: LEMOS RICHARD FRANK D
IPC: B65D35/38
Filed: 1969-07-14
Abstract: 1,249,934. Collapsible tubes. FLEXILE METAL CO. Ltd. 17 June, 1970 [14 July, 1969], No. 35371/69. Heading B8D. An impact-extruded collapsible metal tube 1 has an integral nozzle 2 which is covered by inner and outer concentric sleeve portions 6 and 7 of a moulded resilient synthetic plastics member 5, the inner wall of the nozzle being provided with axially-extending ridges 3 to prevent relative nozzle/plastics member rotation. The ridges bite into the inner sleeve portion or co-operate with grooves or ridges on the inner sleeve portion. Axial withdrawal of the member 5 is prevented by the material of the inner portion expanding inwardly of the shouldered ends 4 of the ridges and by a groove or rib 10 on the outer sleeve portion having a snap-fastened engagement with a rib or groove 11 on the nozzle. A sharp wedge-shaped edge 8 around the nozzle end bites into the plastics member 5 to prevent leakage of the tube contents.
Patent GB-283851-A (GB)
Title: Method of producing cellulosic material
IPC: D21C3/26
Filed: 1927-12-31
Abstract: 283,851. Euromerican Cellulose Products Corporation, (Assignees of Dorner, B.). Jan. 17, 1927, [Convention date]. Gums, carbohydrate &c.-In the preparation of paper pulp from corn stalks, straw, flax, esparto grass, and the like, and the recovery of non-cellulosic components in a utilizable form, the material is finely shredded, and the water solubleconstituents, largely saccharides, other sugars and salts, are removed by leaching in a stream of hot or cold water. Counter current treatment may be used, the process taking four or five days. The liquor may be evaporated to a syrup and used as an addition to stock food, or it may be fermented to produce alcohol. The leached material is then disintegrated in a beater, then boiled with caustic soda liquor at ordinary or increased pressures, just enough alkali being used to react with the silica present. This cooking may be done in the beater. The material is separated from this liquor and washed. The liquor containing sodium silicate and a small amount of pentosans may be treated with acid to precipitate the pentosans which may be separated and used as such, or added to the leach liquor from the first stage. The partially cooked material is then placed in an ordinary digester and cooked with caustic soda in the ordinary manner, the temperaure and pressure being such as to avoid caramelization of the pentosans. After this cooking, the liquor is drawn off and the pulp washed and bleached in the usual manner. The waste liquor from the cooking, containing large amounts of pentosans loosely combined and certain amounts of sodium carbonate and other products, is preferably treated with carbon dioxide, or it may be with sulphur dioxide, by which the pentosans are precipitated. The pentosans may be separated and used as before mentioned.
Patent GB-467973-A (GB)
Title: Improvements in and relating to wax polishing apparatus
IPC: A47L13/31
Filed: 1935-12-21
Abstract: 467,973. Reservoir pads. FRAENKEL, M. Dec. 21, 1935, No. 35454. [Class 19] A reservoir pad for polishing purposes comprises a wax container a, Fig. I, with holes c for feeding wax, and a felt cover d or the like, connected to a tray by sets of buckled straps, one set e passing through holes in the bottom or sides of the tray and the other set over the outside of the tray. A second tray, Fig. II for polishing purposes has the felt fastened by straps e passing through holes f to the inside of the tray. The outsides of the trays may be fitted with buffers. The container a is made for easy wax filling which may be from a tin with a false bottom.
Patent GB-491008-A (GB)
Title: Volatile welding and brazing fluxes
IPC: B23K35/36
Filed: 1936-12-24
Abstract: In gas-welding or brazing metals and alloys with the aid of an alkyl borate flux mixed with the welding or brazing gas in the vapour state, the flux vapour is obtained by volatilization from a liquid flux consisting of pure alkyl borate or a pure mixture of alkyl borate and an alkyl alcohol which is capable of forming an azeotropic vapour with the borate or one of the borates present, the borate being present in the mixture in an amount sufficient to yield a vapour having a borate concentration at least as great as that in the azeotropic composition.  The borate used is preferably methyl, ethyl, propyl, or isopropyl borate or mixtures thereof.  For some purposes volatile silicates, e.g. methyl silicate, may be added to the liquid fluxes, to form silica in the welding flame to assist the action of the boron oxide.  The compositions which will produce the required borate concentration in the vapour are shown for some mixtures in the drawings.  It is preferred to use a liquid having a borate concentration slightly greater than that of the azeotrope, e.g. a mixture of 80 per cent methyl borate and 20 per cent of methyl alcohol.  Pure dry compounds are preferably used in making the mixtures.  Examples are also given of fluxes containing methyl or ethyl borate and various amounts up to 20 per cent of methyl silicate.  The welding or brazing of copper, bronze, brass, low carbon steel, and high chromium ferrous alloys is referred to and the composition of various alloys which may be used for the welding rods is specified, e.g. an alloy containing copper, manganese, and silicon, and alloys containing, besides copper and tin, zinc, lead, or both zinc and lead, or, in another example, zinc, silicon, and iron.  Other fluxes referred to in connection with comparative tests are: (a) a paste of boric acid and borax, (b) volatile fluxes obtained from mixtures of methyl alcohol and boric acid or boron oxide, the percentage of methyl borate varying from 7,2 to 76 per cent, and (c) a flux as in (b) containing 76 per cent of borate which has been contacted with activated carbon.
Patent GB-1391296-A (GB)
Title: Cladding
IPC: B60R13/02
Filed: 1972-07-28
Abstract: 1391296 Laminates MATEC HOLDING AG 28 July 1972 [28 July 1971] 35460/72 Heading B5N A self supporting trimming element for the interior cladding, e.g. for the roof of a car, comprises a first layer consisting of a substantially rigid agglomerate of fibres with a completely polymerized thermosetting resin bonded to a second layer provided as a finishing layer by means of a plurality of spaced points of adhesive consisting of thermoplastic resin, e.g. poly. ethylene. The fibres may be of animal, vegetable or synthetic fibres or a mixture thereof, e.g. of cotton, wool and viscose rayon or polypropylene fibres, and the thermosetting resin may be a phenol formaldehyde resin. The second layer may be a woven fabric or non- woven polyester or nylon fabric bonded with surplus thermoplastic resin. The trimming element may be produced by partially curing the thermosetting resin powder in the slightly compressed mixture thereof with the fibres; e.g. by passage through an oven between two belts of metal wires, placing this first layer on a heated mould, placing the second layer treated with thermoplastic resin powder against the first layer, applying a heated counter-mould to compress the layers together and keeping the mould and counter-mould closed until complete hardening of the thermosetting resin and complete fusion of the thermoplastic resin have taken place and removing the trimming element from the mould. Adhesion of the thermoplastic resin to the second layer may be effected by passage through a curing oven or beneath infrared ray emitters. The heated counter-mould may carry around its periphery a sharpened steel blade to effect trimming of the edges. The first layer may be in the form of two pads of fibres having inserted between them round the periphery locally of reinforcing bands of fibre mats completely impregnated with thermosetting resin in a pasty state. The fibre materials may be rendered self extinguishing by treatment with borax, antimony chloride or a polyphosphate. The density of the element may vary from zone to zone due to adjustment of the shape of the mould and counter-mould.
Patent GB-1320718-A (GB)
Title: Colour sensitometric apparatus
IPC: G01J3/02
Filed: 1970-07-23
Abstract: 1320718 Photo-electric colour testing EASTMAN KODAK CO 23 July 1970 [25 July 1969] 35664/70 Heading G1A [Also in Division G2] In an apparatus for determining the colour density of a test strip in respect of three colours either by transmissivity or reflectance, the strip is scanned to produce sequentially, signals representative of the density of each of three colours and the signals are used to produce three visible traces each corresponding to a separate colour density of the strip. The apparatus is applied to the testing of films and photographic papers and the traces which may be on a cathode ray tube may be in different colours for identification. White light shining through the strip 44, Fig. 1, is sequentially transmitted by rotating rods 40R, 40G, 40B and applied to a photo-cell 48 through sectorial filter elements of a disc 34 rotating in synchronism. The detector output is applied to a C.R.T. together with scanning control pulses produced by a synchronously driven apertured plate 36 to produce the three traces. The rods may be optical fibres and thus numbers for the respective rods may be such as to compensate for the detector sensitivities to the different colours. White light may alternatively be directed through the rotating filter and rotating light guides to the sample, and may be detected either after passing through the strip or when reflected by the strip. In the latter cases a second set of light guides rotating adjacently to the first lead the light to the detector. Rotating mirror scanning may be used as an alternative to light guides.
Patent GB-522580-A (GB)
Title: Improvements in animal traps
IPC: A01M23/38
Filed: 1938-12-09
Abstract: 522,580. Animal traps. THOMAS, Sir I. Dec. 9, 1938, No. 35982. [Class 5 (i)]  A trap for rats, weasels &c. has a tilting platform arranged above a tank 8, electrical contacts on the platform and on a ledge 13 beneath a bait receptacle 11, side and end entrances 15, 7, a mirror 12, and a lid 4.
Patent GB-885448-A (GB)
Title: Improvements relating to channels supporting and positioning nuts
Inventor: TRZCINSKI JOSEPH TEDDY
IPC: F16B37/04
Filed: 1958-11-10
Abstract: 885,448. Anchor-nuts. BOOTS AIRCRAFT NUT CORPORATION. Nov. 10, 1958, No. 36025/58. Class 89(1). An anchor nut assembly comprises a channel 10 with flanges 11 and web 12 with apertures 17, at least one nut body 16 over an aperture 17 and between the flanges, which body includes a base 21 narrower than the spacing of the flanges and a tubular barrel 22, and retaining lugs 24 cut and bent out of the flanges to allow movement of the nut member laterally and longitudinally of the channel. Several spaced nuts may be retained in the channel which is secured to a workpiece by rivets &c. engaging holes 13. The nut member may have locking fingers 28 pressed inwards of the screwed bore 20.
Patent GB-381037-A (GB)
Title: Installation for withering tea leaf
IPC: F26B21/02
Filed: 1931-12-31
Abstract: 381,037. Tea-withering apparatus. ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET and BUSCH, S., 5, Chancery Lane, London. Dec. 31, 1931, No. 36085. [Class 34 (ii).] Tea leaf is spread on shelves in a rectangular compartment having a number of holes arranged on opposite longitudinal sides through which air is passed across the compartment in either direction. Preferably the shelves are arranged across the compartment so that the air current traverses them in the direction of their length. As shown in the drawings, banks of shelves 1 are arranged transversely in rectangular lofts. In the longitudinal walls of the lofts and opposite both ends of each bank of shelves, holes 2 are provided for entrance or exit of air. The air currents thus pass along the length of the shelves and from side to side of the lofts. The holes 2 communicate with conduits 3 which taper so that the speed of the air traversing the openings at the outer ends of the lofts will be the same as at the centre. Ventilator fans 5 draw air from a shaft 6 and circulate it through the lofts. The fans may be swung round so as to circulate the air in the opposite direction. The air supplied to the shaft 6 is subjected to heating or cooling and the humidity is adjusted to the desired state. Air-pressure regulators sensitive to the static or dynamic pressure of the air are inserted in the circuit, and they may either regulate the speed of the fans, or the position of the vanes of the fans, or of separate guide vanes or dampers.
Patent GB-1508948-A (GB)
Title: Piston pump assembly utilizing load pressure control
IPC: F04B49/08
Filed: 1976-09-01
Abstract: 1508948 Controlling pumps CATERPILLAR TRACTOR CO 1 Sept 1976 [23 Jan 1976] 36144/76 Heading G3P A piston pump 10 has a swash-plate 17 biased to minimum or maximum fluid displacement position by means 20 acted on by pump output pressure, and biased to the opposite fluid displacement by means 16 acted on by a fluid-pressure signal 66 produced by control means 26 in dependence on the balance between pump output pressure 32 and the load pressure 30 of an implement 12, 13 or 14 powered by the pump. These pressures 30, 32 act on opposite ends of a valve spool (52), Fig. 2 (not shown), in the control means 26, respectively to increase or decrease the flow from a pilot pump 36 to the means 16, the spool (52) also being biased to the increased flow position by a spring (60).
Patent GB-1277145-A (GB)
Title: Metal-plated polypropylene plastics materials
Inventor: BOEHM DENNIS RALPH
IPC: C23C18/30
Filed: 1970-07-27
Abstract: 1277145 Electroless plated polypropylene plastics GULF & WESTERN INDUSTRIAL PRODUCTS CO 27 July 1970 36189/70 Heading C7F Polypropylene surfaces are rendered electroconductive by etching, activating by exposure to a chloride ion-free solution of palladium nitrate, treating with an aqueous solution containing halide ions, reducing the surface, and electroless plating. The etchant may be chromic acid/sulphuric acid, the halide-ion solution aqueous HCl, the reducing agent NaH 2 PO 2  and Cu or Ni the electroless metal plating. The process is applicable to plating using a plastisol-coated metal workpiece - rack wherein the halide ion treatment deactivates the rack but not the workpieces, so that no re-rack is necessary. In a re-rack process the halide-ion treatment is omitted.