baber/WOPTO huggingface dataset:
Patent GB-448335-A (GB)
Title: Improvements in or relating to cutter grinding devices
IPC: B24B3/36
Filed: 1934-12-05
Abstract: 448,335. Grinding cutters. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BAGSHAW, C. M., Belgrave Road, Leicester. Dec. 5, 1934, No. 34898. [Class 60] In a machine for grinding by a wheel 36 cutters such as are used in heel-trimming machines, the cutters 62 are clamped side by side between spring-pressed abutments 20, 22 carried by a guide bar 10 and abutments 30, 32 rigidly mounted on a slide bar 28. The abutments are formed with projecting ribs 34 engaging grooves in the sides of the cutters, as described in Specification 196,379, [Class 60]. After the bar 28 has been pushed to the left sufficiently to grip the cutters, a clamping pressure is applied by moving to the left a hand-lever 44 which is pivoted at 46 to the bar 10 and carries a spring-biassed pawl 40 adapted to engage ratchet teeth 38 on the bar 28. When the lever 44 is released, the bar 28 is held in the clamping position by a spring-biassed pawl 42 on the bar 10 engaging the teeth 38. The lever 44 then moves to the right under the influence of a spring 60, a stop 50 causing the pawl 40 to be disengaged from the teeth 38. When the cutters are to be removed the lever 44 is moved farther to the right and an abutment 56 on the lever disengages the pawl 42. The bar 10 carries legs 12, 16 fitted with rods 14, 18 sliding in bearings on the machine so as to allow the cutters to be traversed in succession past the grinding wheel. During traverse the cutters are rocked by the engagement of rollers mounted on an arm fixed to the rod 14 with a single cam plate.
Patent GB-772830-A (GB)
Title: A process for the production of basic n-diepoxides
IPC: C08G59/28
Filed: 1955-12-06
Abstract: Condensation products are made from N : Ndi-epoxypropyl-amines and bi- or poly-functional alcohols, carboxylic acids or anhydrides, phenols, isocyanates, amines and aldehydes.  An example is given of the reaction between N : N-di-epoxypropyl-methylamine and ethylene diamine, such a product being useful as an exchanger resin, laminated material or for electrical purposes.  Cold-hardening lacquers can be obtained by using phthalic anhydride.  The di-epoxypropyl derivatives of propylamine, butylamine and amine may also be used, and in general of any aliphatic or aromatic primary amine.ALSO:N : N-Diepoxypropyl compounds are made by reacting a primary aromatic or aliphatic amine with epichlorhydrin to form the N : N-di-(3-chloro-2-hydroxypropyl) compound and treating the latter with aqueous sodium or potassium hydroxide.  The reactions are preferably carried out at or slightly above room temperature and an inert solvent may or may not be present, e.g. methanol, ethanol, benzene or toluene.  Examples are given of the process using n-propylamine, n-butylamine, aniline and methylamine.
Patent GB-186355-A (GB)
Title: Improvements in compositions for the manufacture of building blocks, slabs, tiles and other articles
IPC: C04B18/24
Filed: 1921-09-13
Abstract: 186,355. Hamon, Count L. Le W. Sept. 13, 1921. Fibrous plastic compositions. - Four compositions containing peat are described for the manufacture of bricks, building-blocks, &c. :-(1) 70 parts of volume, of peat, 25 parts of lime, 5 parts of sulphate of zinc; (2) 75 parts of peat, 20 parts of lime, 1 part of alum, 2 parts of tar, 2 parts of gypsum or silicate of soda; (3) 45-50 parts of peat, 45 parts of clay, 5-10 parts of silicate of soda; (4) 30-35 parts of peat, 60 parts of clay, 5-10 parts of silicate of soda. The peat as it comes from the bog is macerated, the other ingredients are added, and articles are moulded. In the case of compositions (1) and (2), articles harden without artificial heat; other articles are burned. Reinforcements may be inserted during moulding.
Patent GB-292575-A (GB)
IPC: C09H3/00
Filed: 1927-12-28
Abstract: 292,575. Greiner, C. June 24, 1927, [Convention date]. Film evaporators. - A scraper for separating solidified or gelatinized colloids from supporting surfaces, is connected with the casing of a blower so that compressed air or gas is blown through the casing against the working point of the scraper. The scraper is formed' by a wall a on which is mounted a casing b, which tapers in the direction of the scraping edge and has a slit-like opening d from which air or gas escapes. The air &c. may be cooled and is introduced into the casing by a pipe c. The device is pressed against the surface to be treated by an adjustable counterweight.
Patent GB-208912-A (GB)
Title: Device for the transmission of mechanic and acoustic vibrations
IPC: H04R1/46
Filed: 1922-12-27
Abstract: 208,912. Darimont, L. Dec. 27, 1922. Vibrations, indicating, recording, and registering.-Relates to devices for the transformation of mechanical vibrations, such as those of the vocal chords or the beats of the heart, into acoustic vibrations, of the kind employing two diaphragms 2, 6 with liquid 11 between. A disc 3 of ebony or other suitable material is attached to one diaphragm and, in the case in which the instrument is held against the throat, Fig. 1, the other diaphragm 6 is provided with a disc 12 of retort coal co-operating with a shallow dish formed of, and containing balls 14 of, the same material. The dish is formed in two parts 13, 16 separated by insulating material 15. The diaphragm 6 and disc 12 may be replaced by a plate of liquid-proofed retort coal. The microphone device is connected to a telephone receiver 20. The chamber between the diaphragms is provided with a pipe 9. In apparatus for listening to the beats of the heart, Fig. 2, an element 5 is mounted on the diaphragm 6 and operates contact points on spring blades 9<a>, 10<a> connected in a telephone circuit. The diaphragm 2 is mounted in a threaded ring 8 for adjustment purposes.
Patent GB-1365866-A (GB)
Title: Surface treatment apparatus for workpieces
IPC: B24B31/073
Filed: 1973-07-24
Abstract: 1365866 Vibratory finishing CARL KURT WALTHER 24 July 1973 [1 Sept 1972] 35298/73 Heading B3D Apparatus for the surface treatment of workpieces comprises a resiliently supported vibrational scouring tank 7 in which workpieces are agitated with a grinding agent with the addition of liquid, and a flocculation tank 12 connected downstream of a liquid discharge 13 of the scouring tank, the flocculation tank being attached to the scouring tank to oscillate therewith and having a seeding inlet 18 for the addition of a flocculation seeding substance. The scouring tank may be annular, channelshaped, or, as described, spirally ascending and is mounted on a base plate 6 supported by springs 8 from a frame 2. A bearing 5 is mounted on plate 6 and rotatably supports a shaft 4 carrying eccentric weights 3 for vibrating the tank so that its contents move in a helical path from the bottom A to the top B of the tank. Liquid is uniformly supplied to the tank from an annular nozzle 10 connected to a hose 9. A liquid outlet spigot 11 at the bottom A of the scouring tank is connected to a spigot 13 of the flocculation tank 12, the spigot 13 communicating with an inlet pipe 17 which extends towards the bottom of the tank and has an outlet adjacent an inlet 18 for a scaling substance. A discharge pipe 16 is connected to the top of the flocculation tank in siphon relationship to the inlet pipe 17 and can be closed by a tap 19 when the flocculation operation is completed, the flocculated liquid discharged from the flocculation tank passes to a filter for cleaning. The flocculation tank may be in the form of an ascending coil and the liquid, after passing through a filter may be returned to the scouring tank.
Patent GB-1180440-A (GB)
Title: Improvements in or relating to Arrangements for Diversity Reception
IPC: H04B7/08
Filed: 1967-08-01
Abstract: 1,180,440. Diversity reception systems. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 1 Aug., 1967 [4 Aug., 1966], No. 35367/67. Heading H4L. In a diversity reception system means are provided for combining the received signals or for selecting the best signal and the method which gives the best signal/noise ratio in the output signal is selected automatically. The system is applicable to predetection combining, in which case automatic phase control of the received signals is necessary, or to post detection combining. As shown in Fig. 3, the outputs of receivers 5, 6 are supplied via gates 9, 10 respectively and combined at 13 to provide an output S and are rectified at 7, 8 respectively and added at 11 to provide a common A.G.C. for the two receivers. The rectified signals V 1 , V 2  from diodes 7, 8 are also supplied to a comparator 12 where they are compared with a fixed reference voltage Vc. If V1-V2 is greater than Vc the comparator 12 applies a signal to cut off the gate 10 and if V2-V1 is greater than Vc the gate 9 is cut off. When the difference between V1 and V2 is less than Vc both gates remain open and the two signals are added.
Patent GB-889286-A (GB)
Title: Reciprocating gas compressors
Inventor: RICARDO HARRY RALPH
IPC: F04B39/08
Filed: 1959-10-20
Abstract: 889,286. Gas compressors. RICARDO & CO. ENGINEERS (1927) Ltd. Oct. 14, 1960 [Oct. 20, 1959], No. 35526/59. Class 8(1). A reciprocating gas compressor, e.g. for air, comprises a low pressure working cylinder 5, Fig. 1, having combined inlet and outlet ports 11, 14 at its respective ends, a double-acting piston 15 disposed within the cylinder 5 and connected to a crank shaft 2 so as to be reciprocated thereby, and a reciprocating low pressure piston valve 9 connected to the crank shaft for reciprocation within a valve cylinder 7 into which open the ports 11, 14, the valve cylinder 7 communicating with inlet and delivery passages 34, 30 and the piston valve 9 being so formed that when the compressor is operating the piston valve connects each of the inlet and outlet ports 11, 14 alternatively to the respective inlet passage 34 and the delivery passage 30 to allow fresh gas to pass into and compressed gas to be delivered from each end of the low pressure working cylinder. The low pressure piston 15 is connected to a crankpin 21 on the crankshaft 2 by a connecting rod 19, the crankpin 21 having also connected to it, by a connecting rod 24, a high pressure working piston 22, Fig. 2, disposed within a high pressure working cylinder 6 having its axes displaced by approximately 90 degrees about the crankshaft axis from the axis of the low pressure working cylinder 5; the high pressure working cylinder 6 has a combined inlet and outlet port 39 under the control of a high pressure piston valve 10 reciprocably mounted within a piston valve cylinder 8 having inlet and delivery ports 38, 41 the low pressure delivery passage 30 leading, by way of an intercooler, to the inlet port 38 of the high pressure piston valve cylinder 8. Both piston valves 9 and 10 are connected to a subsidiary crankpin 25 on the crankshaft 2, by connecting rods 26 and 44, respectively, the connecting rod 26 being connected to the low pressure piston valve 9 through a crosshead 27 and a further connecting rod 29. In a modification, Fig. 5 (not shown), a high pressure piston valve serves only as an inlet valve controlling an inlet port in a high pressure working cylinder, the head of which is provided with delivery ports controlled by automatic poppet valves. The poppet valves may be replaced by disc valves. Specification 881,441 is referred to.
Patent GB-806695-A (GB)
Title: Process for the manufacture of aqueous suspensions of pesticidal substances
IPC: A01N25/04
Filed: 1953-12-21
Abstract: Aqueous suspensions of pesticidal substances are prepared by mixing a solid organic pesticidal substance of crystalline character having a melting-point of at least 40 DEG  C. with not less than 20 per cent, and preferably 20 to 50 per cent, of its weight of kieselguhr and grinding, e.g. in a three-roller mill in the presence of water until the pesticidal substance has been reduced to a maximum particle size of less than 20 microns.  The ground suspension may be mixed with an aqueous solution of a protective colloid which does not cause the suspension to flocculate. Specified pesticidal substances are phenyl mercuric chloride, pentachlorophenol, N-trichloromethyl - thio - tetrahydrophthalimide, tetramethyl thiuram disulphide, 8 - phenylmercurioxy - quinoline, salicylanilide, parachlorophenyl benzene sulphonate, a  : a -bis-(para - chlorophenyl) - b  : b  : b - trichlorethane, 3 : 5 - dinitro - ortho - cresol, diphenyl sulphone, azobenzene, para-dichlorobenzene, benzene hexachloride, benzylidene-aniline, benzylidene-azine, a -naphthyl-thiourea metaldehyde.  Specified suitable protective colloids are cellulose ethers, ethyl - cellulose and especially methyl-cellulose, which are soluble or dispersible in water, ethyl alginate, ammonium polyacrylate, gum arabic and starch.
Patent GB-1178730-A (GB)
Title: A Device for Sizing and Chamfering Sliding Clasp Fastener Elements
IPC: B21D53/52
Filed: 1967-06-09
Abstract: 1,178,730. Making sliding clasp fasteners; rolling. DYNACAST Ltd. 9 June, 1967 [14 June, 1966], No. 35579/68. Divided out of 1,178,728. Headings B3A and B3M. The description is identical with that of Specification 1,178,728, but the claims relate to the sizing and chamfering device.
Patent GB-1389440-A (GB)
Title: Four-way valve in particular for a monopipe central heating system
IPC: F16K11/08
Filed: 1972-07-31
Abstract: 1389440 Central heating systems PONT-AMOUSSON SA 31 July 1972 [30 Aug 1971] 35667/72 Heading F4V [Also in Division F2] A four-way valve comprises a body 1 with a cylindrical cavity and a closure member 14 rotatable through a limited sweep angle, which closure member comprises an axial core 15 from which projects a continuous rib 16 whose edge bears against the wall of the cavity, the rib having a portion 16a which remains constantly between the ports 9 and 10 and a portion 16c, one end of which is above the port 4 at one end of the sweep and another end which is below the port 4 at the other end of the sweep, the rib being entirely located throughout the sweep on the same side of the port 3. The valve is incorporated in a monopipe central heating system having a single supply line supplying water to a plurality of radiators in series.
Patent GB-522433-A (GB)
Title: Improvements in or relating to travelling grates
IPC: F23H11/04
Filed: 1938-12-08
Abstract: 522,433. Travelling grates. INTERNATIONAL COMBUSTION, Ltd., and WRAY, J. W. Dec. 8, 1938, No. 3'5812. [Class 51 (i)] In a travelling grate provided with pivoted bars or louvres, the upper part 2, Fig. 1, of the leading face of each bar is inclined to the horizontal at an angle which is less than the smallest angle which permits fuel to slide over the face by gravity. Projections 3 are provided to separate adjacent bars for the passage of air. In the modification shown in Fig. 2, the leading face of each bar is provided with a step 5 to prevent passage of fuel. Fig. 3 shows a further modification in which the trailing face 4 of each bar is inclined forwardly to provide fuel pockets between the bars.
Patent GB-926894-A (GB)
Title: Olefin polymerization process
IPC: C08F10/00
Filed: 1961-10-05
Abstract: Polymers of ethylene, and copolymers of ethylene and another 1-olefin, are made by first contacting the monomeric material with a chromium oxide polymerization catalyst in which at least a portion of the chromium is in the hexavalent state, in the presence of a liquid hydrocarbon diluent, and at a temperature below the temperature at which the polymer formed dissolves in the diluent, and secondly, contacting the particulate polymer and additional monomeric material to a further polymerization reaction at a temperature such that substantially all the polymer formed is soluble in the diluent, and recovering the polymer.  The polymer and diluent are recovered by conventional methods.  The 1-olefin may be propylene, 1-butene, isobutylene, 1-pentene, 1-hexene, 4-methyl-1-pentene, and 1-octene. The whole polymerization is preferably effected in a continuous manner by using a loop-shaped reactor, and a flow diagram of such a process is included in the Specification.  Specification 790,195 is referred to.
Patent GB-1472622-A (GB)
Title: Holographic coding of microfilm
IPC: G03B21/11
Filed: 1974-08-15
Abstract: 1472622 Microfilms XEROX CORP 15 Aug 1974 [16 Aug 1973] 35963/74 Heading G2X A microfilm or the like 10 has its microimage frames 12, 14, 16 coded by holographic images 18 to 20 disposed adjacent each frame or each series of frames. The microimages may be formed by a computer system wherein information is written one frame at a time by an electron beam forming an image on the phosphor face of a cathode ray tube, the image being projected through a lens system 30 on to the microfilm or the like. The holographic images are formed using a coherent light source 26, a beam splitter 27 and data reflectors 24a, 24b, 24c....., the latter being selectively activated by moving them into positions in which they reflect the light or by changing their reflectivity, e.g. by altering their surface characteristics using liquid crystals or other optically responsive materials. The holographic images may be in the form of a binary code, and during the recording of each image the other image areas may be masked. The holographic images are automatically searched using photoelectric detectors (29a), (29b), (29c) ..., Fig. 3 (not shown), the microfilm or the like being stopped when the desired code is detected.
Patent GB-916483-A (GB)
Title: Improvements relating to belt conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G39/14
Filed: 1960-10-20
Abstract: 916,483. Idler roller assemblies for endless belt conveyers. MINING ENGINEERING CO. Ltd. Aug. 14, 1961 [Oct. 20, 1960; June 7, 1961], Nos. 35988/60 and 20498/61. Class 78 (1). To prevent a troughing idler assembly from swing- ing out of the plane containing two pillars 27, depending rods 29 are attached to coupling links 14 and pass freely through holes in the base 28. To limit the maximum troughing angle, a projection 31 is secured to one or each rod 29 and engages the top of the base 28 when the maximum permitted troughing angle has been reached. The roller assembly is as described in Specification 872,266.
Patent GB-1504384-A (GB)
Title: Ion exchange process
IPC: B01J47/10
Filed: 1975-09-02
Abstract: 1504384 Ion-exchange ASAHI KASEI KOGYO KK 2 Sept 1975 [9 Sept 1974] 36101/75 Heading B1J An ion exchange process for treatment of a fluid comprises passing a fluid to be treated in one direction through a treatment zone packed with ion exchange resin particles, regenerating the ion exchange resin particles on depletion in activity by passing a solution of regenerant through said treatment zone in opposite direction to the fluid to be treated and subjecting the contaminated ion exchange resin particles to a washing treatment in a washing zone which is provided separately from said treatment zone, wherein said washing treatment is conducted by removing contaminated resin from an outlet provided at one end of said treatment zone to transport the contaminated resin into said washing zone and wash the transported resin therein, and thereafter returning the washed resin to said treatment zone from an inlet provided at the opposite end of said treatment zone from said outlet until all the ion exchange resin particles in said treatment zone have been washed. The removal of particles may be either continuous or portionwise. The fluid to be treated flows upwards, the regenerant downwards, in vertical columns.
Patent GB-325902-A (GB)
Title: Improvements in or relating to printing machines
IPC: B65H1/18
Filed: 1928-12-07
Abstract: 325,902. Timson, A. R. Dec. 7, 1928. Delivery apparatus.-Mechanism for lowering the delivery table of a printing machine as sheets are delivered thereto is controlled by a feelerdevice 1 which is oscillated to-and-from the surface of the pile 3 and is actuated by the increase of the pile to release a member normally holding the table-lowering mechanism inoperative. The feeler 1 is pivoted to a lever 2 hinged at 13 to the framing 21, and its horizontal arm can move towards the pile 3 under the action of a spring to an extent limited by a stop 17 or screw-adjusting means. A link 4 connects the vertical arm of the feeler to a pivoted tripping-member 5 which normally engages a stop 19 so as to support a rod 6 against the downward pull of a spring 22. In this position of the rod 6, a bluff 7 pivoted thereto and to a fixed arm 7a renders inoperative a pawl 8 which otherwise would engage a ratchetwheel 10 and actuate, through worm-gearing 26, the table-lowering devices. The lever 2 is oscillated about the pin 13 by a link 14 and oscillating arm 15 so as to lift the feeler 1 from the pile as each sheet is delivered. If sufficient sheets have been delivered to necessitate the lowering of the pile, the feeler 1 is moved about its pivot as the arm 1 moves downwardly and so throws the tripping-member 5 out of its normal position, thus allowing the rod 6 and bluff 7 to drop and the pawl 8 to engage the ratchet-wheel 10. A lug 11 on the oscillating arm 15 raises the rod 6 on the upward movement of the arm so as to allow the member 5 to move into position under the stop 19 when the top of the pile has been lowered to the normal level. The pivotal point of the link 4 and member 5 is approximately coaxial with the pin 13 so that oscillation of the lever 2 causes very little movement of the member 5.
Patent GB-1032477-A (GB)
Title: A hydraulically actuated clamping mechanism for the mold in an injection molding apparatus
IPC: B29C45/67
Filed: 1964-09-03
Abstract: 1,032,477. Injection moulding machines. E. AOKI. Sept. 3, 1964 [Sept. 17, 1963], No. 36179/64. Heading B5A. Hydraulic fluid introduced through a pipe 4 into a chamber A acts through a diaphragm 3, a piston 6 and a rod 8 on a movable mould part 7 to clamp two injection mould parts together. Further pistons 21 (Fig. 1, not shown) are provided for the approach stroke of the mould part 7. The rod 8 is pivoted at 9 and moved into and out of operative position by means of a piston 12. The piston 6 is carried by an elastic disc 5. A pressure relief valve protects the diaphragm 3 against damage this valve comprising a piston 14 connected to the diaphragm 3 by a rod 15. If the diaphragm moves beyond a certain point the piston 14 opens a relief pipe 161.
Patent GB-522487-A (GB)
Title: Means for preventing the frosting of windscreens or the condensation of moisture thereon
IPC: B60S1/54
Filed: 1938-12-13
Abstract: 522,487. Preventing dimming of windscreens. JONES, E. Dec. 13, 1938, No. 36249. [Class 20 (iii)] To prevent frosting of the windscreen 4 of motor road vehicles or aircraft, hot gases from the engine-bonnet 1 are led from a hollow deflector 2 fitted over the bonnet through a restricted aperture 11 in front of the screen. The device, which may extend wholly or otherwise across the screen, may be fitted with sliding or hinged baffles 8, actuated by Bowden wires 9 or other means, to control the passage of the hot gases.