baber/WOPTO huggingface dataset:
Patent GB-453405-A (GB)
Title: Drawing apparatus
IPC: B43L13/02
Filed: 1936-03-03
Abstract: 453,405. Measures of length. NIEUWKAMP, J., Groote Postweg, Probolinggo, Java, Dutch East Indies. March 3, 1936, No. 6481. [Class 106 (ii)] [See also Group XX] One or more rulers 2 movable by parallel displacements over a drawing board 1 are coupled to slides 3 which co-operate with corresponding guides 4 so that the position of a ruler may be accurately set by inserting one of a row of evenly spaced pins 8 on the slide into one of a series of holes 6 in the guide spaced at slightly different equal intervals to give a vernier adjustment. A finer adjustment of the ruler 2 may be effected by moving the ruler relatively to the slide 3 (or the guide 4 relatively to the board 1) by means of a micrometer screw 17 rotated by a lever 18 with a spring pawl 20 engaging a notched segment. For increased accuracy the slide 3 may be provided with two or more staggered rows of pins and the guide 4 with coacting rows of holes. The pins may have T-shaped grooves engaging fixed pins so that they may be retained in the depressed position by a slight twist.
Patent GB-1254166-A (GB)
Title: Heat-treated products of acrylonitrile copolymers and processes for the preparation thereof
IPC: C08F8/00
Filed: 1969-02-06
Abstract: 1,254,166. Acetone. TORAY INDUSTRIES Inc. 6 Feb., 1969 [7 Feb., 1968; 8 Feb., 1968; 13 July, 1968], No. 6567/69. Heading C2C. [Also in Divisions C1 and C3] The dehydrogenation is described (see Example 18) of isopropyl alcohol to acetone by heating the former at 450‹ C. in the presence of a catalyst obtained by heating and carbonizing a copolymer of acrylonitrile, and 2-(1-hydroxyethyl)-acrylonitrile (98 : 2 molar ratio). Reference has been directed by the Comptroller to Specification 911,542.
Patent GB-295910-A (GB)
Title: A process of moulding briquettes of iron ore, or iron-bearing materials and apparatus therefor
IPC: C22B1/24
Filed: 1928-03-02
Abstract: 295,910. Groppel, K., Gr÷ppel, E., and Waschkau, A., (trading as Maschinenfabrik F. Gr÷ppel C. L³hrig's Nachfolger), and Debuch, C. P. March 2, 1928. Rolling-machines; cooling-moulds, and moulded articles.-Briquettes of granular iron ore or ironbearing material such as blast furnace dust are made by heating the ore in a rotary oven and discharging it in a plastic state between cooled moulding rollers. Fig. 1 shows the moulding rollers having mould cavities provided with perforations g leading to the hollow interior through which water is circulated by way of a hollow axle. The water percolating to the moulded material forms a, hard skin on the outer surface. The heated material is delivered from a shoot h and may be moistened at i. The rollers are mounted to yield under excessive strain, and the mould cavities taper outwards to sharp edges without intervening spaces at the periphery of the roller.
Patent GB-657853-A (GB)
Title: Improvements in the chemical creaming of latex
IPC: C08C1/075
Filed: 1949-03-11
Abstract: Fresh natural rubber latex, preserved or not with ammonia is concentrated by adding both an organic colloidal creaming agent and a soap, then passing through a clarifier centrifuge and subsequently creaming.  In an example, to fresh Malayan latex preserved with 1.25 per cent ammonia was added 0.2 per cent of ammonium oleate (based on the latex) and 0.08 per cent of ammonium alginate (based on the water) and the mixture then clarified by centrifuging and then creamed for two weeks.  The strainability of the final creams is greater than in conventional processes in which either the soap or the creaming agent is added after the clarifying.  The alginate may be replaced by Karaya gum, Irish moss, locust bean gum or carob seed gum, and the soap may be any alkali soap of a fatty acid having 8-24 carbon atoms or abietic acid.
Patent GB-708875-A (GB)
Title: Improvements in or relating to revivifying cation exchange materials used in the production of silica hydrosols
IPC: C01B33/143
Filed: 1952-03-14
Abstract: Siliceous material is removed from cation exchange material which has become fouled therewith due to contact with an alkali metal silicate, by treatment with an alkali metal or ammonium hydroxide solution.  It is preferred to use 1-2 parts by weight of the hydroxide, preferably sodium hydroxide, solution per part of exchange material at a concentration of 5-15 per cent. by weight and 80 - 180 DEG F., and the exchange material may be washed with water before the treamtent and before regeneration to the acid cycle.  Examples are given showing the application of the invention to exchange-regeneration cycles used in the production of silica hydrosols.
Patent GB-431657-A (GB)
Title: Improvements in fuel injection valves for internal combustion engines
IPC: F02M67/12
Filed: 1934-03-03
Abstract: 431,657. Fuel injectors. REYNOLDS, P. J., 3269, West 24th Avenue, Vancouver, Canada. March 3, 1934, No. 6831. [Class 7 (iii)] The pressure of the fuel admitted through a passage a lifts the valve spindle d to uncover a groove c and admit air at a lower pressure than the fuel through the injection orifice, to minimize dribble of the fuel. The air is admitted through a passage b and passes through a groove e and passages f to the groove c, and it may be obtained from the engine cylinder during the compression stroke.
Patent GB-830068-A (GB)
Title: Radar scanning system
IPC: H01Q3/08
Filed: 1956-03-05
Abstract: 830,068. Linkwork; positive clutches. GILFILLAN BROS. Inc. March 5, 1956 [May 9, 1955], No. 6906/56. Classes 80 (2) and 80 (3). [Also in Group XL (c)] Linkwork.-An elevation-scanning aerial E, Fig. 5 (not shown, see Group XL (c)) is oscillated about a horizontal axis by means of an oscillating vertical shaft 124, Fig. 6, and Fig. 7 (not shown), and a " foldable " rocker arm 108 comprising a member 112 connected at one end to the aerial by a universal joint 106 and link 104 and rigidly attached at the other end to the shaft 116 of an electric motor 120 mounted at one end of a member 110, the other end of which is rigidly connected to the shaft 124 so that when the motor 120 is energized to position the member 112 as shown in full lines the amplitude of aerial oscillation is 31 degrees but when the motor is energized to position the member 112 as shown in dashed lines the amplitude of oscillation is 7 degrees. Clutch, Figs. 9 and 10, and Fig. 5 (not shown).-An azimuth-scanning aerial A, Fig. 5 (not shown, see Group XL (c)) rigidly attached to a vertical shaft 75, is rotated continuously or oscillated within a fixed sector by remote selective electrical control, clutch means being provided for ensuring that on transfer from rotating to oscillating drive the oscillation starts at a fixed point in the rotation cycle and the direction of the initial sweep of the oscillation is in the same direction as the rotation in order to reduce strain during the transfer. As shown, a rocker arm 144 is freely pivoted between two flanges 164 and 166 on a collar 162 keyed to the shaft 75 and a dog clutch 174 is pivoted at 180 to the arm 144, the tooth 175 of the clutch being urged against the action of a spring 186 into contact with the periphery of a flange 164 of the collar 162 when a solenoid (mounted on the arm 144) is energized. During rotation of the aerial the shaft 75 is driven in a clockwise direction by a motor 80, Fig. 5 (not shown), through a clutch. In order to change over to oscillation, solenoid 192 is energized and when the aerial is in a position corresponding to the anti-clockwise limit of the oscillation the tooth 175 engages a notch 165 in the flange 164, thereby locking the arm 144 to the shaft 75 and also operating a transfer switch 205, Fig. 10, and Fig. 12 (not shown), to de-energize the motor 80 and energize another motor 138, Fig. 5 (not shown), which actuates a linkage to oscillate the arm 144 and hence the aerial A. When the solenoid 192 is de-energized the deenergization of the motor 138 is delayed by means of a cam-operated switch until the rocker arm 144 is in its correct initial position. Specifications 676,743, 830,067 and 830,069 are referred to.
Patent GB-380428-A (GB)
Title: Improvements in or relating to the preparation of gaseous enveloping atmospheres foruse in metallurgical operations
IPC: C21D1/76
Filed: 1931-03-05
Abstract: 380,428. Annealing; cementation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Wilson, F. P. ; 1100, Union Street, Schenectady, New York, U.S.A.) March 5, 1931, No. 6917. Convention date, March 6, 1930. [Class 72.] A gaseous atmosphere for a metallurgical and like furnace is prepared by passing a fuel gas such as towns gas, through a heated zone, the temperature of which is so controlled that the fuel gas is rendered carburizing, neutral, or decarburizing with respect to the metal. Steam is preferably mixed with the gas in such proportions that the carbon freed in the heated zone will be completely reacted upon by the steam to form hydrogen and carbon monoxide. and in the apparatus shown the supply of steam to a mixing chamber 2 is automaticafly controlled by a temperature-responsive device 5. The mixture passes through a heat-interchanger 7a to header 11, from which tubes 15 depend into a firebrick-lined chamber having nickelchromium heating-resisters 14. The gas passes from the chamber to the furnace 17 through the pipe 16. The temperature maintained within the reaction chamber will vary according to the temperature and other conditions in the furnace, and may be between 700-1100‹ C. The gas supplied to the furnace will preferably contain a preponderant proportion of hydrogen, a smaller proportion of carbon monoxide, a minor content of nitrogen or carbon dioxide, and a small content of methane, ethane, propane or butane. Carbon monoxide is present in such proportion that it will be in chemical equilibrium with the carbon dioxide in the furnace. When the gas is to be used in a brazing furnace such as that described in Specification 265,950, [Class 51 (ii), Furnaces and kilns for applying &c.], the hydrogen and methane should be in chemical equilibrium, and the mixture should be in equilibrium with the carbon content of the steel at the operating temperature. A slightly decarbonizing atmosphere is produced by increasing the steam content or the reaction temperature, and the carbonizing effect can be increased by reducing the temperature, until at 700‹ C. the methane content may be 15 per cent. At high temperatures the hydrocarbon content of the gas may be completely cracked. When it is desired that the atmosphere should contain a substantial proportion of inactive gas such as nitrogen, some of the fuel gas may be incompletely burnt with air, and in this case a combustion chamber is fitted in the fuel gas supply line. When operating at high temperatures a combustion chamber may be used instead of the reaction chamber shown.
Patent GB-1125371-A (GB)
Title: Improvements in or relating to the application of powder to sheets
Inventor: GILBERT PAUL
IPC: B41F23/06
Filed: 1965-02-17
Abstract: 1,125,371. Bronze printing. UNILEVER Ltd. 16 Feb., 1966 [17 Feb., 1965; 19 Nov., 1965], Nos. 6920/65 and 49191/65. Heading B6C. [Also in Division G2] In the powder applicator of a bronze-printing machine, freshly printed sheets face uppermost are passed through a predetermined amount of powder piled on a platform 5. Surplus powder is removed from the sheets as they pass upwardly between vibrating plates 2 and a fixed plate 14. The sheets are fed to the powder applicator through rollers 12 and removed by rollers 21, further rollers 17 and 18 being provided to guide the sheets in their upward passage by the vibrating plates 2. The powder is fed to the platform 5 from a reservoir 4 by a paddle 7 connected to a driven shaft by a leaf spring 8 at each end. In a modification, the platform is tiltable between a powder charge position and an operative position, the movement of the platform being synchronized with the rotation of the paddle.
Patent GB-249148-A (GB)
Title: Improvements in foot-arch supports
IPC: A43B7/22
Filed: 1926-03-12
Abstract: 249,148. Lengremann, P. March 12, 1926. Foot-arch supports.- A foot-arch support consists of a resilient comb-shaped plate b which may be fastened to the insole of a boot &c. bv screws or nails c. The teeth d of the plate support the arch at the inside of the foot and are separated by spaces of about the same width as the teeth.
Patent GB-801230-A (GB)
Title: Improvements in or relating to writing implements
IPC: B43K24/03
Filed: 1956-03-05
Abstract: 801,230. Writing instruments. WICHMANN, W. March 5, 1956 [March 4, 1955], No. 6927/56. Class 146(3) A writing instrument comprises a writing element slidably mounted in a casing so as to be movable from a retracted position into a projected writing position purely under the influence of gravity and vice versa, the implement being locked in writing position by a locking member, movable under the action of gravity to co-operate with the rear end of the implement or a member  co-operating therewith and a shoulder in the easing. As shown, a ball-point pen 24 is slidable in a casing comprising front and rear parts 17, 10 respectively. The front end 25 of the part 17 has an aperture 26 for the projection into writing position of the tip 27 of the pen 24. A sleeve 29 in the part 10 has bores 30, 32 connected. to a cavity 31, the bores 30, 32 have a shoulder 33 formed therebetween. The pen 24 is held tip 27 downwards to effect projection into writing position where it is maintained by a ball 43 and clamping bolt 44. The bolt has a tapered head 46 and an enlarged end 49 longer and heavier than the head 46. The end 49 engages the bore 30 when the head 46 is disposed between the ball 43 and bore 30 and the ball 43 engages the shoulder 33 between the bores 30, 33 to retain the pen in writing position. Inversion of the pen, such that the tip 27 is uppermost, effects retraction of the pen. In a modification which dispenses with the ball 43, the end of the pen has a wedge member which co-operates 'with the bolt 44 to lock the pen in writing position.
Patent GB-250730-A (GB)
Title: Improvements in and relating to lubricators
IPC: F16N11/04
Filed: 1925-12-12
Abstract: 250,730. Craib, J. S. Dec. 12, 1925. Force-feed lubricators.-The feed of lubricant from a cup a by a spring-pressed plunger b is made uniform and adjustable by means of a tapered stem c adjustably secured to the cup or to the plunger and controlling the outlet opening, the opening being enlarged as the pressure of the spring diminishes. In the form shown in Fig. 1, wherein the lubricant is fed through the hollow stationary plunger b, the stem c is carried bv the cup, being adustably secured to the top thereof by a screwed spindle m and a lock-nut m<1>. The spring l bears against a plate, e secured to the cup by a bayonet joint. By raising the cup and turning it so as to disengage slots e<1> in the plate from ribs i<1> on the plunger stem, the spring can be kept compressed so that the cup mav be removed for filling purposes. As shown in Fig. 6, the stem c is carried by the movable plunger b, being secured thereto by a threaded stem having an extension c<2> of polygonal section engaging in a sleeve g rotatable in the cap n. By turning the sleeve g, the stem c can be adjusted. The cup is provided with a valved filling opening r.
Patent GB-258301-A (GB)
Title: Improvements in or relating to automatic railway signalling apparatus
IPC: B61L3/04
Filed: 1925-03-16
Abstract: 258,301. Kofler, G. March 16, 1925. Track apparatus actuating signals on trains and for stopping trains.-Signals and brakes are operated by connections to the levers 11, 12 which are rocked to one of two operative positions by the passage of thin or thick wedge-like members 5 between the fixed plate 6 and the movable plate 7 which imparts movement to the plunger 8 and levers 11, 12 to actuate either the signals only or the signals and brakes together. The plates 6, 7 may be placed vertically or horizontally and ths wedges are arranged accordingly. The wedges 5 are supported on the ends of pivoted arms 29a on the semaphore, posts and are adjustable vertically by the links 15, 16 and the clamping bolts 17, 18 which pass through slots 19, 20. The arms 29<a> are telescopic and rest on an adjustable stop in their lowered or operative position. A roller 22 reduces friction against the plates 6, 7.
Patent GB-291892-A (GB)
Title: Advertising display board or frame
IPC: G09F15/00
Filed: 1927-03-15
Abstract: 291,892. Mungo, J. R. March 15, 1927. Boards for notices and the like.-A display board for holding timetables and advertising matter is arranged with a main central portion 6 and subdivided side portions 5, 7 fitted with separate glazed doors 3, 2, 4. Reference has been directed by the Comptroller to Specifications 9230/84, 13190/86, 18727/05, 102,311 and 129,507.
Patent GB-126123-A (GB)
Title: Improvements in or relating to Automatic Air Inlet Valves for Low-pressure Steam Heating Apparatus, and the like.
Inventor: TAYLOR FRANK
IPC: F16K24/06
Filed: 1918-04-29
Abstract: 126,123. Taylor, F., and Taylor, H. G. April 29, 1918. Valves closing with rush of fluid.-An automatic air-inlet valve for use on low-pressuresteam heating-systems and of the kind normally held closed by the steam pressure but adapted to be opened by gravity or a spring when the pressure fails, comprises a lift valve member a carried by a hollow spindle a<1> rectangular or triangular in cross section, bored laterally at a<2> and provided with a cross pin c adapted to act as a stop. According to the Provisional Specification, a thermally actuated valve may be arranged alongside the pressure actuated one, or it may form an integral part thereof.
Patent GB-272596-A (GB)
Title: Improvements in telegraph circuits
IPC: H04M11/06
Filed: 1926-03-15
Abstract: 272,596. Standard Telephones & Cables, Ltd., and Thompson, A. E. March 15, 1926. Eliminating effects of disturbing currents; duplex telegraphs.-In a two-line circuit one line with an earth return is used for the signalling currents, and the other line is so connected conductively to the signalling apparatus as to protect the signalling circuit against interference and to afford protection to neighbouring tedegraph or telephone circuits. The transmitting apparatus is connected to one line through the primary of an induction coil, of which the secondary is connected to the other line in such a manner that surge currents are transmitted over the two lines in opposite directions. The figure shows a differential duplex arrangement in which the lines 1, 2 are balanced in known manner by the networks 8, 12. Each station is provided with a polarized receiving relay 3 of which two windings 4, 5 are in series between the line 1 and one side of the adjacent network, and two other windings 6, 7 are in series between the line 1 and the other side of the network. The windings 4, 5, 6, and 7 have equal electrical characteristics. The local transmitter 10 is connected to the junction of the windings 4, 5 through one winding of a transformer 9, and the junction of the windings 6, 7 is connected to earth through the other winding of the transformer. Earth currents and currents due to interference from neighbouring circuits neutralize each other in the relay windings 5, 7 at each station.
Patent GB-569109-A (GB)
Title: Process for the manufacture of a stable preparation of ferrous salt
IPC: A61K31/295
Filed: 1943-05-06
Abstract: A stable preparation of a ferrous salt intended for oral administration is prepared by intimately mixing a solid ferrous salt with at least one quarter of its weight of solid ascorbic acid.  In examples: (1) crystalline ferrous sulphate is dried in vacuo at 50 DEG  C. until 6 mols. of water of crystallization are removed and ground with laevo-ascorbic acid in a china ball mill; (2) crystalline ferrous sulphate is triturated to fine grains, dried at normal temperature and mixed with ascorbic acid in in (1); grinding and drying are continued until a product containing FeSO4.4H2O is obtained.
Patent GB-639637-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24C15/36
Filed: 1948-03-09
Abstract: 639,637. Electric fires. GENERAL ELECTRIC CO., Ltd., and DAVIDSON, F. D. March 9, 1948, No. 7242. [Class 39 (iii)] A guard for an electric fire comprises a plurality of parallel reflecting strips 10 (e.g. of aluminium) arranged with their planes at right-angles to that of the heating elements 3, the strips 10 being carried on a pair of parallel rods 11 having spacers 12. Two of the strips 10 have hooked rearwardly extending lugs which fit on the two outer wires 5, 8 of four wires 5, 6, 7, 8 which traverse the length of the opening in the body 2 of the fire. A reflector 4 of the type described in Specification 563,095 is incorporated in the fire.
Patent GB-1213141-A (GB)
Title: Improvements in or relating to moulding apparatus
IPC: B28B7/24
Filed: 1967-02-15
Abstract: 1,213,141. Multiple moulds for concrete. STELMO Ltd. and P. L. RAWLINSON. 23 Jan., 1968 [15 Feb., 1967], No. 7312/67. Heading B5A. A multi-mould concrete-moulding machine comprises a plurality of wall members movable on rollers along rails to their moulding positions, where in conjunction with side walls and soffits they comprise the moulding chambers, and are held in position by hydraulic ram devices, top and bottom, which hook on to the supporting girders and are readily disengageable. The rails are provided with gaps, closed by a hinged member, so that the moulded concrete can be lifted from chambers when they are moved away from the moulding position.
Patent GB-523880-A (GB)
Title: Improved means for preventing the formation of ice on aircraft
IPC: B64D15/16
Filed: 1939-03-08
Abstract: 523,880. Preventing ice-formation on aircraft. SHAW, G. R. and ROWE, M. F. PRING-. March 8, 1939. No. 7519. [Class 4] To prevent the formation of ice on aircraft wings a shoe is secured to the leading edge and comprises layers 1-4 of permeable but inextensible material stitched near two edges 5 to form a flat tubular chamber 6 for de-icing fluid, the innermost layer 1 being cemented to an extensible waterproof material 7 and the outermost and narrowest layer 4 being covered by waterproof material 8 and a wire gauze strip 9 cemented at its edges to two additional extensible and waterproof strips 10 secured to the strip 7 and to the wing. The layers 1-4 may be of fabric. The de-icing fluid is supplied to the chamber 6 under pressure and expands it and the fluid seeps out at the edges through the gauze 9. Two or more such chambers may be provided at the leading edge and supplies with de-icing fluid simultaneously or alternately.
Patent GB-1100041-A (GB)
Title: Improvements relating to connector devices
Inventor: HARLEY FRANK BERNARD
IPC: F16G11/00
Filed: 1964-02-24
Abstract: 1,100,041. Chain stops. HARLEY PATENTS (INTERNATIONAL) Ltd. 12 Feb., 1965 [24 Feb., 1964], No. 7617/64. Heading B8B. [Also in Division E2] A connector device comprises a body 10 having means, e.g. a hole 11, by which it may be attached to another part, an aperture 15 through which an abutment 19 on another member 12 may pass, the aperture 15 communicating with a closed ended slot 16 of a width less than the largest dimension of the abutment, the slot extending away from the aperture 15 in a manner such that a portion of the other member to one side of the abutment during its displacement from the aperture to the closed end of the slot makes one or more changes of direction amounting to at least 90 degrees. The device may be used to secure a rope as shown, or a chain, Fig. 2 (not shown). In another form, Fig. 3 (not shown), the slot 16 is formed with a number of short radial extensions by means of which a number of ropes or cables may be secured.