baber/WOPTO huggingface dataset:
Patent GB-666462-A (GB)
Title: Improvements relating to dyestuffs and processes of dyeing and printing
IPC: C09B37/00
Filed: 1949-11-15
Abstract: Textiles are dyed or printed by applying, from a vat or sulphur dyebath or in an alkaline discharge paste, a compound containing two aromatic nuclei, one nucleus containing a diazotizable amino group or a nitro group reducible in an alkaline bath to a diazotizable amino group and the other nucleus containing a hydroxyl group capable of directing coupling with a diazo compound, and the colour is subsequently developed by treatment with nitrous acid.  In examples: (1) the textile material is dyed from a bath containing meta-nitranilide of beta-oxynaphthoic acid and sodium sulphide, with or without the addition of a sulphur brown dyestuff, and the colour is developed by passing the material into a bath containing sodium nitrite and acetic acid; (2) the material is dyed from a bath containing meta-nitranilide of beta-oxynaphthoic acid, caustic soda and sodium hydrosulphite, with or without Caledon Yellow G, and then developed as in (1); and (3) cotton is dyed with Direct Fast Yellow 4GL, printed with a paste containing meta-nitranilide of beta-oxynaphthoic acid, potash, gum tragacanth and sodium formaldehyde sulphoxylate, dried, steamed and then developed in a bath containing sodium nitrite and acetic acid to give a red discharge effect on the yellow ground.
Patent GB-324010-A (GB)
Title: Improvements relating to motor vehicle and other lamps
IPC: F21V14/02
Filed: 1928-10-11
Abstract: 324,010. Lucas, Ltd., J., and Lucas, O. Oct. 11, 1928. Vehicle lamps, directing. -In a pneumatic device comprising interconnected cylinders and pistons for controlling a pivoted vehicle lamp one of the cylinders is provided with a passage or opening whereby the operative side of the piston is intermittently put into communication with the other side to maintain an adequate quantity of air in the system. The cylinder a containing the hand-operated piston b and connected by a nipple d with a pipe leading to a similar cylinder on the lamp, is 'formed at each end with pressed-up passages c of sufficient length to connect the sides of the piston at the ends of the stroke allowing air to enter the system through the exhaust aperture e. The release of pressure gives the operator an indication that the end of the stroke has been reached. The upper passage may be replaced by a small hole adapted to be exposed below the piston at the upper end of the stroke. A stop may be arranged so that the piston is brought to rest at such a position in relation to the passage c, or a relatively large hole, that the flow of air into the active part of the cylinder is regulated as desired. Specifications 3235/98, [Class 8, Air and Gases, Compressing &c.], and 118,621, [Class 8 (i), Air and gases, Compressing &c.], are referred to.
Patent GB-879037-A (GB)
Title: Improvements in and relating to change-speed gearboxes
IPC: F16H3/08
Filed: 1958-09-12
Abstract: 879,037. Change-speed gear; positive clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Sept. 12, 1958 [Sept. 12, 1957 (2)], No. 29349/58. Class 80 (2). One of the gears 76, Fig. 4, of change-speed gearing for motor-cars &c. having constantly meshing pairs of gears 53, 56; 54, 57, &c., is mounted for rotation relatively to a bush 79 keyed to the driven shaft 52 of the gearing on the hub 75 of the gear 54, and is axially slidable to engage clutch dogs 77 with dogs 78 upon the bush. In the form shown, the gear 76 meshes an idle gear (not shown) in turn meshing the gear 57, and engagement of the clutch dogs 77, 78 establishes a reverse ratio in the gearing. The gear 54 is mounted for rotation upon the bush 79 by means of rollers, and the gear 76 is, in turn, mounted for rotation upon the gear hub 75 by similar rollers. The gears 53, 54 are selectively clutched to the driven gear-shaft 52 by a sliding clutch sleeve 60. In a modification, a gear 48, Fig. 3, is journalled for rotation upon the hub 43 of a gear 41 and is slidden rightwards to engage clutch dogs 49 with dogs 47 upon a bush 40 fast with a driven gear-shaft 2, the gear 41 itself being journalled upon the bush 40 and being slidden leftwards to disengage axial projections 44 from holes 45 in the end flange 46 of the bush. In a modification, Fig. 5 (not shown), the dog clutch sleeve 60 &c. of Fig. 4 is replaced by a synchromesh arrangement as described in Specification 733,745. In a known construction, Fig. 1 (also not shown), the reverse gear is journalled for rotation directly upon the bush keyed to the driven gear-shaft and is axially slidable therealong.
Patent GB-1508604-A (GB)
Title: Door closers
IPC: E05F3/10
Filed: 1974-07-02
Abstract: 1508604 Spring door closers with fluid damping EATON Ltd 4 June 1975 [2 July 1974] 29392/74 Heading E2M In a door operating mechanism in which a piston is displaced by door movement in a cylinder of hydraulic fluid against a closer spring and a fluid passage is provided between the faces of the piston, a plurality of ports are provided for fluid flow from cylinder to passage spaced in the direction of piston movement to be covered in turn by the piston; a single valve member allowing closure of a selected port or ports. The mechanism disclosed is that described in Specification 1504142 with the following modifications: the port 16 is replaced by two parts 17a, 17b spaced closer to port 17 and valve member 14 can be rotated to close port 17a, port 17b or both to provide three positions after which further opening movement will be checked unless sufficient force is exerted to force fluid past clearances. Alternatively the member 14 can close port 17b and throttle port 17a or open port 17a and throttle port 17b.
Patent GB-1383745-A (GB)
Title: Filter systems
IPC: B01D35/18
Filed: 1971-06-23
Abstract: 1383745 Separating apparatus SUTCLIFFE SPEAKMAN & CO Ltd and ALAN POND EQUIPMENT Ltd 16 June 1972 [23 June 1971] 29435/71 Heading B1D A liquid filtering apparatus, in particular an apparatus for the removal of detergent, wax and solids from water used in a car-wash apparatus, comprises a settling tank 100 for the collection of contaminated water, tank 100 communicating at one end via overflow and strainer 101 with oil separation tank 102. Contaminated water is passed from tank 102 via sump 105, pump 104 and line 107 to a first filter bed 108 containing a bed of sand to remove solid particles. The filtered water flows downwardly through sand bed 108 and leaves at the bottom by line 112 whereupon it is split into two streams. One stream is led via line 117 to a second filter bed 120 containing activated carbon to remove detergent and wax and then to a clean-water reservoir 122 which is kept topped up by fresh mains water through pipe 134. The reservoir outlet 125 leads to a pump 114 which delivers via lines 129 back to the car-wash apparatus. The other stream from first filter 108 is led by lines 115 and 113 direct to pump 114. In use, water collected from previous use of the carwash apparatus is filtered through sand filter 108. Half of this water is then led directly back by lines 112, 115, pump 114 and line 129 to the car-wash apparatus to provide the first wash cycle. This water still contains some detergent and wax, but addition detergent is added in line 129 to provide the wash. Meanwhile, the other half of the water from sand filter 108 is being filtered through activated charcoal filter 120 and held in clean water reservoir 122. This clean water is then used to provide the rinse-cycle of the car wash apparatus. The sand filter is periodically cleansed by reverse flow of clean water from the reservoir, collected solids being flushed out into sump 100 by line 132.
Patent GB-295720-A (GB)
Abstract: 295,720. Deglume, E. Aug. 19, 1927, [Convention date]. Stuffing-box joints.-In a spigot-and-socket pipe joint, fluid-tightness is secured by an elastic packing ring a which is positioned between the two pipe ends and is compressed by a gland c which engages the socket end by moulded screwthreads. A metal ring b is interposed between the gland and the packing ring to prevent distortion of the latter.
Patent GB-1186695-A (GB)
Title: Propping Means for Packing and Transporting Requisites
Inventor: ACHERMANN WERNER
IPC: B65D19/00
Filed: 1967-06-28
Abstract: 1,186,695. Load handling pallets; containers. W. ACHERMANN and F. ACHERMANN. 28 June, 1967 [30 June, 1966], No. 29766/67. Headings B8H and B8P. Support means for pallets and containers comprises in combination supporting joists on the bottom of the pallet or container and withdrawable V-section stiffeners disposed therein, both joists and stiffeners being able to be folded flat and constituting longitudinal and cross-braces. Figs. 1, 2, 4 show a pallet 1 formed of corrugated cardboard. Figs. 11, 13 each show a container with bottom parts 9<SP>11</SP> which are locked in their closed position when a stiffener 6 or stiffeners 6 are inserted into a joist 13 or joists 13. Fig. 16 shows a pallet 1 which may be folded in two half portions. Fig. 20 shows a joist 3 provided with buckling grooves 71 Fig. 19 shows a stiffener made up of two V- profiles 6, 61. Two or more pallets or containers may be interconnected through long stiffeners (not shown).
Patent GB-1359202-A (GB)
Title: Method of simplifying the colour marking of three dimensional  contour models
IPC: G09B25/06
Filed: 1972-09-21
Abstract: 1359202 Making relief models D E W REES 21 Sept 1972 [25 June 1971] 29791/71 Heading B5A [Also in Division G5] In a method of making duplicate threedimensional relief models, the lines representing the boundaries of particular areas are cut as grooves or formed as thin ridges in a master model, a mould is taken from the said model, and a moulding taken from the said mould. Paint is then applied to the moulding by brush or roller up to the boundaries defined by the grooves or ridges. The master model is made of plaster, and sealed with copal varnish. The mould is made of vinyl plastics composition, and the moulding is made of plaster.
Patent GB-962138-A (GB)
Title: Improvements relating to door checking and retaining devices
Inventor: BRADY WILLIAM
IPC: E05C17/28
Filed: 1961-08-18
Abstract: 962,138. Stays. WILMOT-BREEDEN Ltd. July 26, 1962 [Aug. 18, 1961], No. 29848/61. Heading E2F. An arm 11 is adapted to be pivotally mounted at one end on a hinged door 15 or its supporting structure 10 and has at its other end a laterally extending projection 12 engaged in a slotted guide 14 adapted to be mounted on the other of these parts, the arrangement being such that as the door is opened the projection moves along the slot until it engages a cam surface 16a on a spring loaded lever 16 pivotally mounted on the guide and then becomes releasably retained in a recess 16b in the lever to hold the door in an open position. The lever is preferably of bell-crank form arranged so that the spring 17 acts on the end opposite to the cam surface 16a. The projection 12 is a stud with an enlarged head which may be provided with a cap of synthetic resin.
Patent GB-226218-A (GB)
Title: Improvements in and connected with apparatus for graphically recording sound waves
IPC: G11B7/00
Filed: 1924-12-12
Abstract: 226,218. Aktiebolaget Filmfotofon, (Assignees of Berglund, S. O. F.). Dec. 12, 1923, [Covention date]. Electric and optical apparatus.-In recording sound waves on a sensitized band, a conducting screen of little weight arranged in the path of the rays of light is suspended in a stable magnetic field and is connected in a circuit influenced by a microphone subjected to the sound waves, whereby, owing to the magnetic field, it is caused to intercept to a varying extent the light projected on to a slot in a plate arranged in front of the sensitized band. Fig. 1 shows a screen b with a serrated upper edge supported so as to move only in its own plane between the poles pn, ps of an electromagnet, and with its upper edge in the path of rays of light from a constant source q which by a condensing lens c are focused near the screen and collected by an object glass o for direction on to a slit s in a plate w in front of the moving band h. The sound waves acting on a microphone k, Fig. 2, effect fluctuations in a circuit connected through the amplifier v with a circuit containing the screen b. The screen is suitably supported by parallel wires or cords which extend beyond the magnetic field and may be damped as for example by resting on or surrounding by cotton wool.
Patent GB-404781-A (GB)
Title: Improvements relating to wick carriers for lamps, heaters, cookers and the like burning oil fuel
IPC: F23D3/00
Filed: 1932-10-26
Abstract: 404,781. Wick burners. VALOR CO., Ltd., and WOOD, A. J., Wood Lane, Bromford, Erdington, Birmingham. Oct. 26, 1932, No. 29927. [Class 75 (i).] The heads of the rivets a securing the wick c to its carrier b act as stops to prevent the carrier from being raised too high by engagement with the wick tube d. Preferably the rivet heads are formed as truncated cones.
Patent GB-796412-A (GB)
Title: Improvements in or relating to telecommunication systems employing automatic gain regulators
Inventor: HELLIWELL BRIAN STANLEY
IPC: H04B3/12
Filed: 1954-10-18
Abstract: 796,412. Automatic volume control. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Oct. 10, 1955 [Oct. 18, 1954], No. 29953/54. Class 40 (4). The gain of an amplifier LA is varied in accordance with the amplitude of a received pilot current, by means of a directly-heated thermistor T included in the feedback path of the amplifier, the thermistor T being located in the anode circuit of a valve V which has characteristics such that there is a substantially linear relationship between the resistance of the thermistor T and the potential applied to the control grid of the valve, which potential is caused to vary in accordance with the amplitude of the pilot current. The pilot current is filtered at PF from the output of the amplifier LA and passed through an amplifier PA to a detector D. The output of this is compared with a stabilized reference potential on a lead RV and the difference is applied to the grid of the valve V, which is preferably a pentode, connected to operate as a triode. The anode of the valve V is connected through a radiofrequency decoupling circuit RF to the directlyheated thermistor T and thence to the hightension supply. Compensation for variations in ambient temperature is effected by means of a second thermistor T1 shunting an indirect heating winding on the thermistor T.
Patent GB-1326111-A (GB)
Title: Method of forming a temporary protection of surfaces of a motor vehicle
IPC: C09D5/00
Filed: 1970-06-19
Abstract: 1326111 Coating motor vehicle with preformed sheets TORAY INDUSTRIES Inc HONDA MOTOR CO Ltd and FUJIKURA KASEI CO Ltd 19 June 1970 [19 June 1969 (2)] 29959/70 Heading B6G [Also in Divisions B2 C3 and C4] A temporary protection is formed on the surface of a motor vehicle by (i) applying to the surface a composition comprising (a) more than 80% and up to 99À3% of a particulate compound, organic or inorganic, unreactive with water and not soluble in water beyond 1%, and (b) 0À1% to 20% of a wax or aqueous emulsion of a synthetic resin, and (ii) subsequently applying to the coated surface a water-insoluble plastics coating. The particulate compound (a) may be barium sulphate, calcium carbonate, barium carbonate, magnesium carbonate, calcium sulphate, titanium oxide, iron oxide, cuprous oxide, zinc oxide, clay, red lead, white lead, lithopone, ultramarine, talc, chromium oxide, red iron oxide, loess, silica gel, silicic anhydride, polishing powder, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamide, polyester, acrylic, phenolic, urea or melamine resin or synthetic rubber. The binder (b) may be carnauba wax, cotton wax, paraffin wax, microcrystalline wax, petrolatum, a mixture of polyethylene with a wax, and may be dispersed or dissolved in water or aliphatic hydrocarbon, to which an aromatic hydrocarbon or an alcohol may be added. Alternatively the binder (b) may be an emulsion of polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl acetate, a polyacrylate or acrylate copolymer, an acrylonitrile-acrylate copolymer, a vinylidene chloride-vinyl chloride copolymer, polystyrene, a styrene-butadiene copolymer or a methyl acrylate-butadiene copolymer. The composition may also contain other components to colour it or to improve flowability, smoothness and stability; examples are monooctyl phthalate, dibutyl phthalate and silicone. The second coating (ii) may be of regenerated cellulose polyethylene, polyvinyl chloride, polyvinylidene chloride, polypropylene, polyester, polycarbonate, nylon, polystyrene, styrenebutadiene copolymer, "Vinylon" (Registered Trade Mark), ethylene-vinyl acetate copolymer, polyacrylate, vinyl chloride-acrylate copolymer, vinyl chloride-vinyl acetate copolymer, polyvinvl butyral, acrylonitrile-acrylate copolymer, rubber hydro-chloride, synthetic rubber or a fluorine-containing polymer. It may also contain a plasticizer, a lubricant, e.g. a silicone, an ultraviolet-absorbing agent and an antioxidant. The second coating may be a preformed film, applied mechanically, by hand or by heatshrinkage, or if soluble may be applied by brush or spray.
Patent GB-536878-A (GB)
Title: Improvements in the manufacture of zinc sheets for use in the photo-engraving industry
IPC: B41N1/06
Filed: 1939-11-13
Abstract: 536,878. Preparing photo-mechanical surfaces. MASSE, T. J. Nov. 13, 1939, Nos. 29992 and 29993. Convention dates, Nov. 4, 1938, and May 1, 1939. [Class 98 (ii)] Out-of-register effects when printing from two or more photo-engraved rolled zinc plates, caused by asymmetrical expansions of the plate during the burning-in process, are avoided by subjecting the zinc plates to a preliminary heating before the final surfacing thereof, i.e. before any surfacing is commenced, or after machining, or after grinding prior to the final polishing operation, such that subsequent burning-in causes permanent deformation of the plates only within specified limits. The heating may be for one hour at 500‹F. or for three minutes at 700‹F., the former being preferably conducted by heating a stack of plates in an oven, the latter by heating the plates singly in a platen press.
Patent GB-824744-A (GB)
Title: Seed sowing device
IPC: A01C7/04
Filed: 1957-09-24
Abstract: 824,744. Seed sowing machines. MIDAVAINE-SIJRIER, P. K. Sept. 24, 1957 [Sept. 24, 1956], No. 30023/57. Class 6(1).  A seed sowing device comprises a rotatable drum 2 mounted inside a cylindrical container 5, holes 9 being provided in the rim of the drum, the holes being closed at the inner end of the drum by a stationary member 11 provided with a spring-urged ejection member 13 for ejecting the seeds in the holes to a discharge opening 12. As shown the ejection member comprises a ball which is spring-urged against the inner face of the drum and partially penetrates each hole in turn as the drum rotates. A plurality of drums may be mounted in the shaft 1. Seed is supplied from the hopper 7. The ejection member is supported by rods 14, 15.
Patent GB-231222-A (GB)
Title: Improvements in and relating to the manufacture of road-making materials
IPC: E01C19/10
Filed: 1923-11-29
Abstract: 231,222. Temperley, J. Nov. 29, 1923. Containers. - Apparatus for making tarmacadam, in which the aggregate is dried in a rotary chamber 28 mounted within a stationary casing forming a jacket for the drying gases, has the casing formed of independently removable sections 30 each comprising an outer plate carrying an inner lining of fire-brick or other heatinsulating material. The casing may be of circular form, Fig. 2, or flat-sided as shown in Fig. 7. The heat-insulating material is retained by projections 34 on longitudinal ribs extending radially from the sections. An air space, may be left between the fire-brick and the casing which space may be filled with asbestos. The interior of the rotary chamber 28 has longitudinal cascading-blades 41 curved at their free ends to raise the aggregate. Hinged dampers, lined with fire-brick, may be provided between the tapered upper end of the furnace 22 and the aperture x in a section at the feed end of the casing, the other end of the casing being connected to a weighing hopper 50 mounted over a mixer 23. The drying gases are exhausted by a fan connected with the space 44, the " fines " passing down a shoot 67.
Patent GB-709806-A (GB)
Title: Improvements in or relating to electrical resistance heating elements
IPC: H05B3/00
Filed: 1950-12-08
Abstract: 709,806. Electric resistance heaters. GENERAL ELECTRIC CO., Ltd., DAVEY, D. and RANDLE, K. C. Dec. 10, 1951 [Dec. 8, 1950], No. 30122/50. Class 39 (3) An electric furnace heating element is formed of tungsten, molybdenum or a molybdenum-tungsten alloy, with a protective surface composed of an alloy of silicon and the metal or alloy in order to resist oxidation at 1500‹C. The layer of silicon alloy is preferably integral with the metal of the resistor, which may comprise a rod or a preferably helical wire, machined to the required dimensions. The metal is siliconized by exposing it to a non-oxidizing atmosphere containing hydrogen and the vapour of silicon halide, preferably silicon tetrachloride at 1100-1300‹C. This atmosphere is generated by passing a mixture of hydrogen and hydrogen chloride vapour over a silcon containing powder, e.g. ferro-silicon packed around the resistor metal, or by bubbling hydrogen, e.g. mixed with a non-oxidizing gas through liquid silicon tetrachloride, and passing the gas over the bar supported in a graphite vessel. A layer of molybdenum silicide 0.06 mm. thick may be formed after 3 hours. An element 50 cms. long preferably with thickened ends may be mounted between water-cooled terminals. Any cracks formed in the resistor while it is heated up are self-sealing at operative temperature, which may be due to the formation of a film of silica on the resistor. Specification 309,393, [Class 72], is referred to. According to the Provisional Specification, the resistor may be of other refractory metals particularly tantalum.
Patent GB-324120-A (GB)
Title: Improvements in or relating to the manufacture of colour lakes and pigment dyestuffs
IPC: C09B65/00
Filed: 1928-10-19
Abstract: 324,120. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct. 19, 1928. Lakes or pigment dyestuffs are made from quinizarine disulphonic acids and anthraquinone- 1-hydroxy-4-aminodisulphonic acids by conversion into the corresponding aluminium compound. In examples, (1) a boiling aqueous solution of potassium quinizarine-2 : 6-disulphonate or quinizarine-2 :5-disulphonic acid and aluminium sulphate is precipitated with sodium carbonate; violet lakes are obtained. (2) A greenish-blue lake is made by precipitating an aqueous solution of potassium anthraquinone-1-hydroxy-4-amino- 2 :8-disulphonate with aluminium hydroxide. Quinizarine-2 : 5 and 2 : 6-disulphonic acids are made respectively from quinizarine-5-and 6- sulphonic acids by sulphonation in aqueous solution with sodium sulphite in presence of pyrolusite and boric acid. 1-Hydroxy - 4 - aminoanthraquinone - 2 : 8 - disulphonic acid is made from anthraquinone-1 : 8 hydroxysulphonic acid by consecutive sulphonation, nitration and reduction. Specifications 17743/14 and 17744/14 are referred to.