baber/WOPTO huggingface dataset:
Patent GB-1405192-A (GB)
Title: Method of removing copper ions from solution in an aqueous  medium
IPC: C02F1/70
Filed: 1973-04-17
Abstract: 1405192 Removing copper ions from waste water HOUSEMAN & DIRKZWAGER BV 17 April 1973 [19 May 1972] 18417/63 Heading C1C Copper ions in solution in an aqueous medium are removed by introducing an excess of NH 3  into the aqueous medium, adjusting the pH of the ammoniacal solution to at least 10, intoducing a reducing agent (e.g. hydrazine) into the solution to form a copper-containing sludge and separating the sludge from the solution. Further copper ions may be removed by passing the solution separated from the sludge through activated carbon. The treatment is specified for the liquors obtained when clearing deposits from high-pressure steam boilers.
Patent GB-224580-A (GB)
Title: Improvements relating to picks and like hand tools
IPC: B25G3/02
Filed: 1923-07-17
Abstract: 224,580. Roberts, B. B., and Walters, J. July 17, 1923. Fixing by T - sockets with clamping-devices.-In a socket for fixing a pick blade or other tool such as a hammer, axe, rake, hoe, shovel &c. to a handle, of the type in which two separate halves or members are clamped to the tool and handle by a sleeve, the sleeve is notched or recessed on the end to receive the tool or blade and/or the socket parts are formed with inclined surfaces to engage correspondingly inclined recesses in the sides of the tool or blade. As shown, the two socket parts 2, 3 are formed at 2a, 3a to engage inclined recesses 1<a> in the blade 1, and to enclose the end of the handle or shaft, the parts being clamped together by a conical sleeve 7. The blade 1 lies in recesses 8 in the upper end of the sleeve. Flanges 9, 10 mav be provided to engage the upper and lower sides of the blade, or the blade may be clamped directly on to the end. of the handle. A pin b may be fixed in one part 2 and passed through a hole in the handle and a hole 6 in the part 3 to locate the parts. In place of the inclined recesses 1<a>, other forms of inberengaging projections and recesses may be used in conjunction with the recessed sleeve 7. The sleeve may be cut away as at 7<a> to reduce weight.
Patent GB-635688-A (GB)
Title: Improvements in or relating to belting
IPC: B65G15/36
Filed: 1946-06-21
Abstract: 635,688. Belting fabric. DUNLOP RUBBER CO., Ltd., and LORD, W. June 21, 1946, No. 18663. Drawings to Specification. [Class 142 (iv)] A belting fabric made of cotton, rayon, nylon, asbestos or wire has, at regular intervals, fastener holding zones comprising two or more consecutive sheds containing a greater weight of weft than the fabric between the zones. Each shed may contain two or more picks of the weft used in the rest of the fabric, or of thicker weft, or one heavy pick and two fine ones. Full-cross leno shedding may be employed at the fastener holding zones.
Patent GB-1097816-A (GB)
Title: Goliath lorry-crane
IPC: B66C23/36
Filed: 1966-04-28
Abstract: 1,097,816. Mobile jib-cranes. BETEILIGUNGSUND PATENTVERWALTUNGS G.m.b.H. April 28, 1966 [April 29, 1965], No. 18690/66. Heading B8B. [Also in Division B7] The turntable 13 of a mobile jib crane is mounted on a torsionally rigid base 12, the height A of which is large compared with the height of a slewing structure 14 so that the hinges 21 of outriggers 19 may be widely spaced. A motor and generator 17, 18 are housed in a compartment 16 attached to the base 12. Winches 15 are housed in the structure 14 which supports a driver's cab 26, a jib-foot pivot 25 and a counterweight 23. The compartment 16 is narrower than the base 12 so that the front pair of outriggers may be folded flush during transit.
Patent GB-350731-A (GB)
Title: Improvements in fuel sprayers for internal combustion engines
IPC: F02M61/18
Filed: 1930-06-19
Abstract: 350,731. Fuel injectors. KIRKHAM, A. R., Lark Street Brass Works, Bolton. June 19, 1930, No. 18710. [Class 7 (iii).] A fuel-injection device has a hollow needle valve 2 which seats on a ball 3 or other loosely held seating. The valve is lifted by fluid pressure against the action of a spring 5 held against a loose collar 14 and a stop 8 limits the upward movement of the valve. The valve is supported in a cap 4 against a packing ring 16 and controls the flow of oil to orifices 17 in the cap. Lubricating grooves 13 are provided in the member 1.
Patent GB-1430868-A (GB)
Title: Coumarin derivatives
IPC: C07D521/00
Filed: 1973-04-18
Abstract: 1430868 Coumarin derivatives PRODUITS CHIMIQUES UGINE KUHLMANN 18 April 1973 [18 April 1972] 18758/73 Heading C2C The invention comprises compounds of Formula I n which Hal is halogen, R is alkyl (1-5C) optionally substituted by a non-ionic and non- chromophoric atom or group (e.g. halogen, hydroxy, methoxy or ethoxy), R 1 , R 2  and R 3 , which may be the same or different, are H, halogen, C 1 -C 3  alkyl or phenyl with 0-3 substituents (e.g. halogen or alkyl). The compounds may be prepared by (a) reacting a diazonium compound II with a coumarin III (b) reacting an orthohydroxybenzaldehyde IV with an acid V or a functional derivative thereof (e.g. alkali metal salt, nitrile or methyl or ethyl ester) or (c) alkylation of a compound of Formula I in which R is H, which itself may be obtained by reacting II with 2,4-hydroxybenzaldehyde. The compounds are used as optical brighteners for polyester fibres.
Patent GB-418925-A (GB)
Title: Improved device for the mounting of engines
IPC: B64D27/04
Filed: 1933-07-03
Abstract: 418,925. Resilient engine-mountings. RENAUX, E. P., 97 bis, Rue Jouffroy, Paris, and RENAUX, L. J., 74, Avenue Vauban, Livry-Gargan, Seine-et-Oise, both in France. July 3, 1933, Nos. 18836 and 18837. Convention dates, July 5, 1932 and June 8, 1933. [Class 122 (iii).] Aviation engines are mounted on pneumatic rings whose planes are substantially parallel to the engine shaft. The radial-cylinder engine, Fig. 1, is carried by a ring-shaped member 31 secured to the engine flange 30 and provided with cheeks 32, 32<a> which carry rims 2, 2<a> upon which are mounted pneumatic rings 3. The latter are surrounded by annular parts 4, 41 bolted together and secured to the aeroplane body. Inner tubes 6 are mounted in the rings 3. In a modification comprising an engine with parallel cylinders, the support comprises four rings with the planes of adjacent rings arranged at right angles. In the event of a pneumatic ring collapsing, studs 33, normally held back by the pressure of air affecting catches 38, are forced out by spring pressure and engage recesses 39 in the rim 4. The pneumatic tubes operating at variable pressure, may be replaced by pneumatic tubes with or without inner tubes. The engine may be connected to the rims 4, and the inner rims to the frames. Safety devices are provided to limit the stresses in the rings 3. The rim 2, Fig. 8, has radial arms 12 which carry spindles 14 between which and lugs 19, 19<1> on the casing 4 slide spring-pressed forked rods 18, 18<1>. Springs 16, Fig. 11, arranged between the ends of the spindles 14 and rods 15, are compressed under the action of a traction stress or a gyrostatic couple. In a modification of this construction suitable for a testing bench, heads on the arms 12 are mounted between heads on spring-pressed rods carried by lugs on the parts 4. The Specification as open to inspection under Sect. 91 comprises mounting the engines of vehicles and aeroplanes on pneumatic wheels with their planes perpendicular to the engine shaft. An engine with parallel cylinders mounted on transverse axes supported at the ends by pneumatic wheels is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-582385-A (GB)
Title: Dry rectifier element and method of manufacture
IPC: H01L29/00
Filed: 1944-10-03
Abstract: 582,385. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. Oct. 3, 1944, No. 18895. Convention date, Oct. 7, 1943. [Class 37] A process for manufacturing a rectifier element with a uniform thickness of semiconducting layer comprises covering a baseplate 3 formed with an upstanding rim 1 with a thermoplastic semi-conducting material 5 such as powdered selenium and pressing between heated platens 6 until the top platen engages with the rim 1. The heat and pressure changes the powder to a fluent mass to fill the baseplate and any excess material is forced out over the rim or through the central aperture 4 of the baseplate.
Patent GB-516474-A (GB)
Title: Improvements in or relating to metal bonded abrasive articles
IPC: B24D3/08
Filed: 1938-06-27
Abstract: 516,474. Abrasive wheels. CARBORUNDUM CO. June 27, 1938, No. 19050. Convention date, June 28, 1937, [Class 60] [Also in Groups V and II] Abrasive articles comprise abrasive grains and a sintered bond consisting entirely of aluminium or an alloy in which aluminium predominates containing a hard intermetallic compound. Abrasives specified are silicon carbide, boron carbide, fused alumina and diamonds, and mixtures thereof; the diamonds are preferably used on admixture with the abrasives of a finer grain size. Abrasive wheels may be produced by mounting a ring 2, 3 of metalbonded abrasive material on a base 4 of thermoplastic resin or metal; the ring 2, 3 may comprise an outer ring 2 containing diamonds and silicon carbide as the abrasive material and an inner ring 3 containing silicon carbide only as the abrasive material.
Patent GB-689647-A (GB)
Title: Improvements in or relating to bearings for spindles
IPC: F16C35/08
Filed: 1950-07-31
Abstract: 689,647. Bearings. GOOD, I. E., and KEIGHLEY GRINDERS (MACHINE TOOLS), Ltd. July 24, 1951 [July 31, 1950], No. 19106/50. Class 12 (i). A bearing for a spindle such as a grinding-wheel spindle 14 comprises two split bushes 16, 17 having longitudinally inclined external adjustment surfaces, which are mounted in the conical bores of supporting members 27, 28, the bushes being constantly urged axially by springs 49, 50 so as to tend to close them up automatically as they wear. The adjustment surfaces comprise ribs having grooves 22, 24, Fig. 2, the groove 24 forming the split in the bush. The springs 49 are disposed between thrust collars 35, 43, the collar 35 being attached to the bush 16 and the collar 43 being slidably mounted on the boss 45 of the collar 35, and abutting a flange 41 of a member 39 secured to the supporting member 27. The springs 50 are housed in a similar arrangement of thrust collars 36, 44, 40. Parallel keys 25, 26 are fitted in keyways in the member 27, 28 and engage the lower grooves in the bushes 16, 17. A double thrust bearing comprises ball-bearings 31, 32 mounted in a recess in the end of the member 27. The members 27, 28 are housed in a supporting member 11, and have end flanges 12, 13 overlying and being secured to the member 11. Oil rings 51, 53 are arranged between the bushes 16, 17 and oil-retaining rings 56, 57 are provided at the opposite ends of the bushes, the ring 5 co-operating with a labyrinth member 58 on the spindle 14. Helical grooves may be arranged on the shaft to carry the oil to the bushes.
Patent GB-312523-A (GB)
Title: Improvements in the production of neutral fats and oils
IPC: C11B3/06
Filed: 1928-07-02
Abstract: 312,523. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 2, 1928. Fats and fatty oils, purifying.-The free fatty acids in fats and oils are neutralized by treatment under pressure and at an elevated temperature, with an alkylene oxide, such as ethylene or propylene oxide, with or without a catalyst, such as metallic acetates, chlorides, phosphates, oxides. The products, presumably containing free hydroxyl groups, may be further esterified. In examples, linseed, soya bean, pea nut and castor oil are heated and agitated under pressure with ethylene or propylene oxide, and sodium or calcium acetate, calcium phosphate, or titanium or aluminium oxide. Excess of the alkylene oxide is distilled off and the product separated from the slime by centrifugal treatment. The product is further esterified by heating with acetic anhydride. In a modification. ethylene oxide passes upwards through a heated tower, packed with Raschig rings impregnated with the catalyst, through which linseed oil circulates, and the excess of the oxide flows into the base of a second tower.
Patent GB-1514802-A (GB)
Title: Combined slit lamp and microscopes
IPC: A61B3/107
Filed: 1975-05-07
Abstract: 1514802 Opthalmic instruments CLEMENT CLARKE INTERNATIONAL Ltd 22 May 1975 [10 May 1974] 22038/75  Divided out of 20849/74 Heading G2J The slit lamp and microscope of a combined instrument are mounted on arms 83, 81, respectively, which are rotatable about a common axis (through spigot 84) along which light passes from the source to the slit lamp. The light may be conducted to spigot 84 by fibre optics or a lamp may be positioned immediately below stand 85. After passing through spigot 84, the light may be reflected (as shown) by mirrors 80, 87 into a further tube 82. Alternatively, mirrors 80, 87 may be replaced by fibre optics. The spigot 84 itself may be a light guide.
Patent GB-320083-A (GB)
Title: Improvements relating to gas burners
IPC: F23D14/00
Filed: 1928-07-02
Abstract: 320,083. Miles, J. July 2, 1928. Doors.-A door for closing the inlet of a hot blast stove c, blast furnace, &c. when a gas burner b is retracted into the inoperative position comprises a plate j, Fig. 3, suspended from a carriage j<1> mounted upon a horizontal rail above the inlet c<1>, the door being made gas-tight by pivoted bolts c<2> which engage slots j<2> in the door.
Patent GB-335257-A (GB)
Title: Improvements in and relating to loud-speakers
IPC: H04R7/18
Filed: 1929-06-21
Abstract: 335,257. Vandervell, G. A., and O. & S. Oilless Bearing Co., Ltd. June 21, 1929. Diaphragms.-A loudspeaker diaphragm consists of a disc of wood of substantial thickness, about 3/16", supported in rings forming part of a frame through the intermediary of sponge rubber of substantial thickness, about ¥". The wooden disc a carries a moving coil b and is strengthened by wooden ribs c, c<1> arranged to lie in various directions. The frame of the speaker carries rings d, e, housing thick rings g, h of sponge rubber about the edge of the diaphragm. A supplementary damping pad j of sponge rubber is arranged between a stationary abutment k and the central part of the diaphragm, the abutment being secured to the central core of the magnet by a pin l. Additional damping pads of sponge rubber may be arranged between the rear surface of the disc and some stationary part of the speaker.
Patent GB-498820-A (GB)
Title: An improved control lever mechanism
IPC: B62M25/04
Filed: 1937-07-10
Abstract: 498,820. Control lever mechanism. STURMEY-ARCHER GEARS, Ltd., MARSHALL, C., and BROWN, W. July 10, 1937, Nos. 19178 /37 and 9969 /38. [Class 136 (i)] [Also in Group XXIV] A control lever mechanism for a variablespeed gear comprises a stepped quadrant or quadrants d, Fig. 1 (19178/37), which is pivotally mounted on a pin c carried by a frame member a and is provided with means e for attachment of the end of a flexible control cable f, an actuating lever i having a camedge m and provided with slots j, k for engagement respectively with the pin c and a second pin l carried by the quadrants d, and a spring- pressed pawl o pivoted in the frame a for engagement, with the steps of the quadrants. The arrangement is such that pressure on the lever i in the direction of the arrow A effects rotation of the lever about the pin c and causes the quadrants, through the connection l, k, to rotate about the pin c and pull the cable f, the pawl o dropping behind each step in the quadrants in succession. Pressure on the lever in the opposite direction B effects rotation thereof relatively to the quadrants, by reason of the slots k, j, and causes its cam edge m to engage the pawl and retract it from the quadrants, the latter snapping round under the tension of the cable f. In a modification, Fig. 1 (9969/38), a single stepped quadrant pivoted on a pin 3 carried by a U-shaped frame 1 and provided with a terminal 10 for the cable 9, is employed, the actuating lever 5 being pivoted to the quadrant at 6 and provided with a pin 7 for engagement with a hole 8 of enlarged diameter in said quadrant. In a further modification. Fig. 1 (Comp.), the lever p<1> is made integral with the quadrant p which is formed with a slot s and a spring M for association with a fixed pin t. If desired a second slot v, also engageable by a fixed pin w, may be provided, and the pawl r and steps on the quadrant may be eliminated by forming the slot v with teeth as shown in -dotted lines.
Patent GB-268620-A (GB)
Title: Improvements in and relating to pyrophoric lighters
IPC: F23Q2/08
Filed: 1926-08-03
Abstract: 268,620. Douglass, L. F. Aug. 3, 1926. Pocket igniters, frictional.-The igniter comprises a friction-wheel 7 provided with an arm 23 adapted to be held by a latch 30 between lugs 18 on a tubular member 16 and depress a plunger 20 against the action of a spring 22 so that, on releasing the latch, the wheel 7 is rotated over a flint 10 for igniting the wick 15. The flint 10 is mounted on a tube 4 on the fuel reservoir 1 and is pressed against the wheel 7 by a spring 9, the lower end of which bears on a disc 5, screwed into the tube. The disc 5 may be adjusted by rotating a member 11 having a finger piece 13, adapted to fit in a recess in the bottom of the reservoir 1, and spring arms 12, which retain it in position in the tube and engage the disc 5 on either side. The latch 30 engages within a hollow ball 25 on the arm 23 and is carried by a spring-pressed lever 29 having an operating button 31. The plunger 20 is provided with a head 21 for engaging a shoulder 19 in the tube 16 to limit the upward movement. A wick cap 24 is provided on the arm 23.
Patent GB-835545-A (GB)
Title: Improvements in or relating to compound foods for calves
Inventor: VRIGNAUD YVES GEORGES
IPC: A23K1/00
Filed: 1956-06-21
Abstract: A calf food consists of 3 parts of a mixture containing, for each 73 kg., 46 kg. of whey powder, 5-9 kg. of yeast grown in a lactic medium and 22-18 kg. of the 35-50% protein material precipitated from whey, buttermilk or a whey-buttermilk mixture by lactic acid, and containing also supplements of mineral substances and vitamins, to one part of a maltose and dextrin containing powder obtained by hydrolyzing with amylase a 35% aqueous paste of a wheat flour which contains the germ and drying and grinding this hydrolyzed product. The whey powder is preferably from a cheese whey of acid less than 20 DEG  Dornic.  The yeast is preferably that produced according to Specification 835,544.  The mineral and vitamin supplements, which may amount to 3% of the calf food, are exemplified by a formulation of pulverized fresh bone, calcium carbonate, sodium chloride and a concentrate of vitamins A, D2 and C.
Patent GB-1042301-A (GB)
Title: Improvements in or relating to conveyor belts
IPC: B65G15/30
Filed: 1963-05-15
Abstract: 1,042,301. Treating textiles. PNEUMATIQUES, CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER COLOMBES. May 15,1963 [May 15, 1962], No. 19302/63. Heading D1P. [Also in Divisions B2 and B5] A conveyer belt suitable for use at temperatures of 200-300‹C. comprises one or more plies of a compound fabric of glass fibres and asbestos fibres. As shown, such a fabric comprises glass fibre strengthening warps 1 and woofs 2, asbestos woofs 3 of larger diameter and glass fibre joining threads 4. The fabric may be impregnated with a heat-resistant fluorinated elastomer or a silicone varnish. A heat resistant coating may be applied such as p.t.f.e., a silicone elastomer or butyl rubber, the coating may be arranged to soften under the action of heat and may be vulcanized. One or more such plies may constitute the web of the belt; alternatively such a ply may be used with plies of natural or synthetic textile material. The compound fabric may be impregnated on one upper surface only, the other surface being covered by a layer of elastomeric material.
Patent GB-1309144-A (GB)
Title: Method for measuring and or detecting changes in the diameter of suspended particles
IPC: G01B11/08
Filed: 1970-04-22
Abstract: 1309144 Measuring particle size photoelectrically LAPORTE INDUSTRIES Ltd 22 April 1970 [25 April 1969] 19302/70 Heading G1A The size of particles in a suspension is measured by illuminating at a large angle of incidence the free surface of the suspension through a particle free layer of material having the same refractive index as the suspending medium and detecting the intensity of the radiation that is forward scattered at one or more scattering angles. The radiation scattered from the background will be at a substantially different angle. As shown, suspension 3 is covered by a layer of particle-free medium which may be a solid or a liquid and in the latter case may be separated from the suspension by a transparent film 2. A collimated mass-chromatic light beam 1 enters layer 4 through transparent walls 10 of container 11 and illuminates area F of the suspension. The light reflected at angle α is detected by photo-sensitive device 8. The light beam may be polychromatic and its reflected intensity measured for a series of wavelengths at a single scattering angle. The intensity of the scattered radiation is proportional to the square of particle diameter.
Patent GB-1200027-A (GB)
Title: Gyratory crusher
IPC: F16C33/66
Filed: 1968-04-24
Abstract: 1,200,027. Gyratory crushers. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM. 24 April, .1968 ,[25 April, 1967], ,No. 19449/68. Heading B2A. [Also in Division F2] A gyratory crusher comprises an eccentric driving ring 2, mounted in a fixed frame 6 by a first bearing 4 having a vertical axis, and a head 1 guided inside the ring 2 by a second bearing 3 eccentric in relation to the first. A stationary scoop 13 is located in a lubricant  reservoir 11, rotatable with the ring, and is connected to a pipe 15 which directs lubricant 8 to the bearings 3, 4. The reservoir is formed within a hollow driving pulley 5 and further oil is stored at level N regulated by an overflow 9. In operation oil is thrown against the inner wall 12 of the pulley and collected by the scoop 13. The ribs of the pulley assist in cooling the oil.
Patent GB-931894-A (GB)
Title: Improvements in or relating to ignition systems for internal combustion engines
IPC: F02P3/01
Filed: 1961-05-30
Abstract: 931,894. Ignition systems. PAL-MAGNETRON NARODNI PODNIK. May 30, 1961 [June 8, 1960], No. 19541/61. Class 7(4). A transistorised electronic ignition system for internal combustion engines comprises a multivibrator (transistors 4, 5) providing a source of high frequency oscillation coupled to an output switching transistor 6 connected to a pulse transformer and capacitor 9 and means triggering the multivibrator for the duration of the ignition pulse whereby a series of impulses are fed. from the multivibrator to the switching transistor so that several spark ignition pulses are generated by the pulse transformer and the capacitor. The trigger means comprises a contact breaker 13 which is mechanically coupled to the engine crank shaft or cam shaft. The timing may be controlled by use of both centrifugal and vacuum control. The Specification refers to use of plugs having a surface ignition discharge (including semi-conductive types).