baber/WOPTO huggingface dataset:
Patent GB-907640-A (GB)
Title: Process for polymerizing olefines
IPC: C08F4/64
Filed: 1958-10-20
Abstract: Substantially isotactic polymers of olefinically unsaturated hydrocarbons of the general formula CH2=CHR, where R represents a hydrocarbon radical containing 1 to 8 carbon atoms, are made by polymerizing one or more of the hydrocarbons in a liquid diluent using a two component catalyst consisting of (1) a component obtained by reacting a compound of an element of Group IVa to VIIa, or Group VIII of the Mendel<\>aeeff Periodic Table, with an organometallic compound of Group I to III, at a temperature within the range of -20 DEG C. to +20 DEG C. and subsequently subjecting the precipitated product to a heat-treatment at a temperature within the range of 40 DEG  to 150 DEG C. and washing the product, and (2) a mixture of a Group III metal alkyl halide, and a Group III metal alkyl fluoride in which the molar ratio of metal alkyl halide to metal alkyl fluoride is within the range of 9:1 to 1:1.  The catalyst may be prepared before, or during polymerization.  Component (2) may be formed by mixing a metal alkyl fluoride and metal alkyl halide in the desired proportions, or by reacting a metal dialkyl monohalide, or a metal alkyl sesquihalide with a fluoride such as an alkali metal or alkaline earth, or a heavy metal fluoride such as lead fluoride.  The reaction may be effected in an inert solvent.  The component (2) may be a mixture of aluminium diethyl chloride and aluminium diethyl fluoride.  The olefinically unsaturated hydrocarbon may be propylene, n-butylene, or styrene.  The polymerization is generally effected in the presence of conventional hydrocarbon diluents.  Specifications 863,416 and 895,595 are referred to.
Patent GB-663656-A (GB)
Title: Improvements in or relating to light-dividing systems
IPC: G03B33/00
Filed: 1948-12-30
Abstract: 663,656. Colour cameras. COOTE, J. H., and MURRAY, G. Dec. 30, 1949 (Dec. 30, 1948], No. 33490/48. Classes 97 (i) and 98 (ii). A light-dividing prism passing part of an incident beam directly to one film gate and reflecting the other part at right angles to another gate is mounted on a plate slidable rectilinearly on a support rockable in the camera, sliding movement of the plate being effected by adjustment means accessible without removing the plate. As shown in Fig. 3 the prism 1 is clamped to a plate 2 having a dovetailed slide 3, Fig. 4, engaging a corresponding groove in a support 4 pivoted at 10 to a plate 9 fixed to the camera. A rod, 23 is screwed within the portion 3 and has a rounded end engaging a plate 27 fixed to the plate 4 and a handle 37, rotation of which adjusts the position of the slide 3 within the groove and relative to one film gate, the rod 23 being looked in adjusted position by a transverse member 28 engaged by a tapered screw 24 also in the portion 3. This rectilinear adjustment can accordingly be effected without removing the plate 2. The slide is locked in position by a trapesoidal member 30 pressed into engagement therewith by a screwed thimble 31. Rocking of the support 4 about the pivot 10 is effected by pins 12, 13 which may be moved vertically by screwed tapered rods 14, 15 respectively the ends of which are accessible from the sides of the plate 9. The mounting may be used with the camera arrangement described in Specification 645,698..
Patent GB-300964-A (GB)
IPC: C10K1/18
Filed: 1928-11-15
Abstract: 300,964. Still, C. Nov. 21, 1927, [Convention date]. Addition to 293,702. Materials and compositions for purifying.- The light oil obtained as a liquid distillate in distilling wash oil containing benzene &c., as described in the parent Specification, is rectified in a separate distilling apparatus and the resulting naphthalene - charged rectification residue is returned while still warm to the distilled wash oil passing into new circulation. The cooled distillation gases containing benzene are admitted through a pipe 1 in the usual manner into the bottom of a scrubbing tower 2 and are led away free from benzene through a pipe 3. The filling of the tower 2 is sprinkled with debenzolized wash oil from a tank 6 and the oil charged with benzene is stored in a tank 8 from which it is drawn by a pump 9 to the distilling plant. The latter comprises a heater 10. a column 13 in which the heated oil is freed from benzene &c. and also partially from naphthalene by the direct action of steam, and a condenser 15 in the lower part of which the light oil and water separate out. The water is discharged through a pipe 16 and the light oil passes into a rectifying column 18. The lower part of this column is heated indirectly by steam from a pipe 19 and a reflux condenser 20 is mounted on the top, provision being also made for direct steam heating. A product containing 95-98 per cent benzene distils over and is condensed in the condenser 22, any residual water being removed through a pipe 23. The residue collecting at the bottom of the column 18 comprising mainly oils boiling above 180‹C. and naphthalene, is delivered to a tank 26 and pumped through a pipe 28 into the top of the column 2, where any benzene residues are recovered.
Patent GB-863545-A (GB)
Title: Manufacture of aliphatic fluorine componds
Inventor: SCHERER OTTO
IPC: C07C17/20
Filed: 1957-10-28
Abstract: Aliphatic fluorine compounds are obtained by reacting vaporous hydrogen fluoride with the vapour of a halogenated aliphatic hydrocarbon containing one or more halogen atoms (other than fluorine) and which may additionally contain one or more fluorine atoms, the reaction being carried out in the presence of a catalyst comprising aluminium fluoride and at a temperature in the range of 200 DEG -300 DEG C.  In an example, a nickel tube is filled with pieces of porous alumina impregnated with magnesium chloride; and a current of gaseous hydrogen fluoride is passed through the tube for 20 hours at 200 DEG -250 DEG C.  A mixture of the vapours of carbon tetrachloride (1 mol per hour) and hydrogen fluoride (1.86 mols per hour) is then passed through the tube at 230 DEG -250 DEG C.  The reaction product consisted of difluorodichloromethane and monofluorotrichloromethane, together with a minor proportion of trifluoromonoschloromethane.  Specification 805,503 also is referred to.
Patent GB-1495184-A (GB)
Title: Fm-am converter
IPC: H03C1/50
Filed: 1975-08-12
Abstract: 1495184 FM-AM converters SONY CORP 12 Aug 1975 [14 Aug 1974] 33575/75 Heading H3R An FM-AM converter producing reliable conversion when the centre frequency of the FM signal or the frequency response of a slope filter is subject to drift comprises a slope filter 2 for converting an FM signal into an amplitude modulated FM signal, an arrangement 5 for amplitude modulating a carrier by a signal corresponding to the envelope of the amplitude modulated FM signal, a control circuit 31 responsive to the mean value of the signal corresponding to the envelope of the output of 2, to maintain the mean value of the above envelope substantially constant. The amplitude modulator 5 (see Fig. 9) may be a simple bridge circuit having a variable impedance 6<SP>1</SP> in one arm varied by the original modulation signal recovered by an amplitude demodulator (Figs. 1, 2, not shown) or serve in addition to detect or amplitude demodulate the amplitude modulated FM signal. The carrier frequency of source 15 may differ from that of the incoming carrier. Filters 21, 22 selectively block the modulation and carrier frequencies respectively. Filters 23, 24 by-pass the sum and difference frequencies. The control circuit may be a variable gain circuit connected ahead of the filter 2 or it can be a circuit to shift the active part of the sloping characteristic of the filter to a higher or lower frequency range (Figs. 11, 12, not shown). The control circuit is controlled by the D.C. output of a smoothing filter 41 formed as part of the modulator or separately when the modulator is preceded by an amplitude demodulator (Fig. 7, not shown).
Patent GB-1460238-A (GB)
Title: Method for the recovery of zinc method for increasing metallic yield in bottom-blown steelmaking processes
IPC: C25C1/16
Filed: 1975-08-12
Abstract: 1460238 Recovery of zinc and sulphur INSPIRATION CONSOLIDATED COPPER CO 12 Aug 1975 [15 Aug 1974] 33618/75 Heading C1A [Also in Division C7] Zinc is recovered from ZnS-containing materials by leaching with an aqueous solution containing Cr<SP>6+</SP> and an acid stable in the presence of Cr<SP>6+</SP>. The acid is preferably H 2 SO 4 , with a suitable leach solution containing 20- 280 g./l. H 2 SO 4  and 10-80 g./l. Cr<SP>6+</SP> which is added gradually with agitation to the ZnS material so that the concentration of Cr<SP>6+</SP> in contact with the material is kept below 5 g./l. and the final pH below 0À6. The leaching operation may be repeated on the residual solids from the first leach step. Leaching is accelerated by adding to the lead solution a solvent for S, e.g. CS 2  or C 2 Cl 4  and the S recovered by separating and distilling the solvent. S may also be recovered from the residual solid separated after leaching by suitable treatment with OS 2  or C 2 Cl 4 . Fe may be removed from the leach solution by hydrolysing under pressure to precipitate basic ferric salts. Metallic Zn is recovered from the Fe-free solution by cementation and electrolysis producing Cr<SP>6+</SP> for recycling to the initial leach step. Cr<SP>6+</SP> may also be reclaimed by subjecting the basic ferric precipitate to electroxidation or by leaching with an alkali.
Patent GB-1091310-A (GB)
Title: Dyeing and printing of paper
IPC: C09B23/16
Filed: 1966-07-27
Abstract: Paper and raw materials for making paper are dyed with dyes of formula:-  <FORM:1091310/D1-D2/1> which are free from sulphonic and carboxylic acid groups, the Ar's are aryl radicals which may be the same or different, the R's are hydrogen or alkyl radicals of 1 - 4 carbon atoms and may be the same or different, X is an anion, the alkyl radicals may be straight or branched and the alkyl and aryl groups may contain non-ionic substituents, e.g. chlorine, bromine or cyano groups. The paper may be wholly or partly unbleached cellulose or ground wood, dyeings of yellow and orange shades are obtained.
Patent GB-860455-A (GB)
Title: A self-propelled vehicle functioning as a portable shed, e.g. for cow milking
IPC: A01K1/12
Filed: 1959-10-06
Abstract: 860,455. Motor vehicle frames. JACOTTET, J. L. Oct. 6, 1959 [Oct. 6, 1958], No. 33804/59. Classes 79(3) and 79(4). A self propelled vehicle functioning as a portable building comprises a longitudinal frame supporting the roof and forming the frame connection between the wheels. The vehicle is floorless and comprises an engine 15. Optional partitions 20, 24 may be fitted so that the vehicle can function as a cowmilking shed. Hinged. side-walls 25 may be fitted, or, each transverse compartment may be provided with its own hinged door.
Patent GB-1018228-A (GB)
Title: A finned tube heat exchanger
IPC: F28F1/40
Filed: 1963-08-27
Abstract: 1,018,228. Air-heating stoves; heat exchange elements. BROWN FINTUBE CO. Aug. 27, 1963 [Sept. 27, 1962], No. 33856/63. Heading F4S. A tubular heat exchanger, for use with high temperature fluids, having longitudinally extending fins containing narrow radial slots to prevent distortion when heated, comprises inner and outer circular tubes 20, 10 with channel-shaped fin members 21, in the annular space 19 between the tubes, fixed along substantially their entire length to the inner tube and extending to near the outer tube. Combustion gases from a gaseous or liquid fuel burner 24 pass through the inner tube 20 to discharge through a stack 29. Air to be heated passes along the space 19 from inlet 11 to exit 12, and plates 22, 23 blocking the annular space at either end. The outer tube 10 has an expansion joint 13 and is mounted on a fixed support 14 and movable supports 15, 16, 17. In another embodiment heat exchangers each comprising inner and outer rectangular tubes, with fins as described above, fixed to the outer tube are suspended in banks in a recuperator chamber through which hot gases pass. Air to be heated passes down the inner tubes and up through the space between the tubes. Circular tubes may be used in which the fin members may be attached to the inner or outer tubes or both (Fig. 10).
Patent GB-903439-A (GB)
Title: Improvements in and relating to the manufacture of bricks and other block-like articles
IPC: B65G49/08
Filed: 1957-11-01
Abstract: 903,439. Endless conveyers; load-handling machines; pallets. BENNETT, C. L. Dec. 15, 1958 [Nov. 1, 1957],No. 34109/57. Classes 78 (1), 78 (3) and 78 (4). [Also in Groups XVII and XXXII] Pairs of bricks 14 are transferred by grippers 15 from separating station 13, as described in Specification 781,264, and are deposited in successive rows on an endless conveyer composed of a series of inverted U-section slats 21 secured between a pair of endless chains so as to leave spaces between adjacent slats adapted to accommodate fingers 19 of a fork-lift device 18 positioned at the discharge end of the conveyer. The arrangement is such that a row of brick pairs is received on each slat with the ends of the bricks overhanging the spaces between the slats. At the discharge end of the conveyer a consignment composed of five rows of brick pairs is transferred from the conveyer to a drier car or pallet 29 by first moving the fingers 19 of the fork-lift device horizontally into the spaces between the slats 21, then raising the fingers 19 to lift the consignment by engagement of the fingers 19 with the ends of the bricks up to the level of a desired rack of the drier car, and then again moving the fingers 19 horizontally to deposit the consignment on the drier car. The vertical movement of the fingers 19 is effected by a screw (Fig. 3, not shown) while the first and second horizontal movements of the fingers are effected by two fluid-pressure cylinders 27, 28, respectively. The drier car 29 which may be . used as a pallet by the provision in its base of openings to accommodate the forks of a forklift truck has racks 29a, 29b &c. each composed of slats 211 spaced to provide openings between them by which the fingers 19 may be withdrawn after the depositing of a consignment. Specifications 781,263 and 903,440 also are referred to.
Patent GB-503981-A (GB)
Title: Improvements relating to the manufacture of bearings, axle-boxes and the like
IPC: B22D19/08
Filed: 1937-12-09
Abstract: 503,981. Making bearings. RUHRSTAHL AKT.-GES. Dec. 9, 1937; Nos. 34110 and 34111. Convention dates, Jan. 23 and April 21. [Classes 83 (i) and 83 (ii)] Casting processes.-Bearings and axle-boxes, subject to high stresses, are made by casting highly carburized haematite iron, containing 1À6 to 3À5 per cent of silicon, in chill moulds or in moulds having chill plates to chill the metal at the bearing surface. The chilling action is regulated, if necessary, by heating the chill so as to obtain, at the bearing surface, a zone of finely graphitic texture and hardness practically equal to that of bronze. In the case of a bearing bush having a small bore for instance, the inner bearing surface may be given the desired hardness by chilling from the outer wall. If the desired hardness does not extend quite to the inner surface the innermost zones may be removed after casting.
Patent GB-879627-A (GB)
Title: Improved irradiated petroleum resins and liquid polymers
IPC: C08F2/54
Filed: 1959-10-08
Abstract: A resin is produced by reacting solid and at least a portion of the liquid polymeric products formed by the aluminium halide polymerization of an unsaturated petroleum fraction substantially free of cyclodienes and boiling in the range of -10 DEG -300 DEG C., in the presence of a minor proportion of a divinyl aromatic compound, such as divinyl benzene, toluene, xylene or naphthalene, the reaction being carried out by the agency of high energy ionizing radiations, at a temperature in the range of -10 DEG -150 DEG C., and a dose rate of at least 0,1 equivalent megaroentgens per hour, until a total radiation dosage in the range of 0,5-100 megaroentgens has been absorbed.  The divinyl compound may be used in admixture with a monovinyl aromatic compound such as styrene.  The radiation may comprise gamma rays, X-rays, beta rays or neutrons.  The monomer may be incorporated in molten polymer, or in a solution of the polymer in a solvent such as n-heptane, cyclohexane or benzene.
Patent GB-779436-A (GB)
Title: Improvements relating to position indicator systems
IPC: G01S7/04
Filed: 1955-11-29
Abstract: 779,436. Radar. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Nov. 29, 1955 [Dec. 6; 1954], No. 34174/55. Class 40(7) To produce a large screen P.P.I. radar display on which a map of the target area may be superposed a cathode-ray tube 2 is provided, an area on the face of which is bombarded by the electron beam, intensity modulated by the radar receiver output. An optical system 6 focuses the light output from the area and the light beam is reflected to form a spot on a large screen 5. The reflecting means includes a device for moving the modulated spot radially to describe a series of radial sweeps on the large screen and is capable of mechanical rotation so that consecutive sweeps are displaced angularly with respect to each other. The mechanical rotation is normally effected in synchronism with the radar aerial scan and the radial spot movement controlled to represent a time base for the received echoes. The large screen is coated with a persistent phosphor capable of being excited by the radiation from the tube 2. Such radiation may be outside the visible spectrum in the ultra violet region or complimentary to the colour of phosphorescence. In the latter case a colour 'filter is provided in the screen to cut out the direct light from tube 2. The reflecting means may consist of a fixed mirror 9 and a mirror 15 (Fig. 3), oscillated between extreme positions 171 and 172 to produce the radial sweeps. As is explained in detail with reference to Figs. 4a and 4b (both not shown) radial linear movement of a convex mirror will produce the same result. If a plurality of convex mrirors 12 (Fig. 1a) are mounted round the periphery of a drum 11 rotating clockwise each mirror for the time it is reflecting the illumination will be moving substantially linearly and when the next mirror becomes effective a substantially instantaneous changeover will occur. Thus the mirror drum 11 provides repeated radial scans as required with the equivalent of a very rapid fly-back. The angular rotation of the radial scans is achieved by making the whole reflector structure consisting of mirror 9 on its support 8<SP>1</SP> and drum 11 on its arm 10 rotate about the axis OO<SP>1</SP>. Reference has been directed by the Comptroller to Specification 641,420.
Patent GB-761518-A (GB)
Title: Safety apparatus
IPC: B60R22/415
Filed: 1954-11-25
Abstract: 761,518. Aircrew safety devices. STURGESS, Inc. Nov. 25, 1954 [Dec. 3, 1953], No. 34241/54. Class 4. A safety device for controlling the movements of a person in an aircraft comprises a cable or the like attached to the person and wound upon a rotatably mounted reel, an inertia member movably mounted adjacent the reel, means adapted to couple the inertia member to the reel so that they rotate together when the angular acceleration of the reel is less than a predetermined value, and adapted to permit relative rotation therebetween when the angular acceleration of the reel is equal to said value, and means responsive to said relative rotation, to stop rotation of said reel. In the embodiment of Figs. 2, 3 and 7, straps are fastened to a buckle on the pilots harness and to a cable 7, which enters a casing 13 through a dirt excluding washer 60'and is wound onto a reel 19, the cable terminating in a ball 7<SP>1</SP> fitting into a depression 24 in the reel and retained by a projecting plate 26. A threaded pin 25 also secures the cable. The reel is attached to a spring 39 so as to tend to wind the cable in fully. Mounted coaxially with the reel, which is preferably of light alloy, is a ratchet wheel 32 of heavy metal, formed with recesses 33, 34, 35, 36, adapted to receive projections 26, 27, 28, 29 on the reel, so that a limited relative rotation of, say, 5 degrees may take place between the reel and ratchet wheel. A lever 22 is pivoted at 21 to the reel, and one end thereof engages a recess 37 in the ratchet wheel, the other passing through a slot 23 in the spindle 18, rotating with the reel, and contacting a cone shaped member 45 with flanged edges resting on an annular ledge 43 in the spindle 18. Pressed against the base of the cone 45 is a pin 46 adapted to rock a lever 47, Fig. 7, and depress a pin 51, releasing a rear 53, Fig. 2, from a spring biased pawl 57. When the pilot moves, or normal acceleration is otherwise given to the cable 7, motion is transmitted from the reel to the ratchet wheel through lever 22, which is held firm by a spring bias on pin 46 retaining cone 45 firmly on its seating 43. When the acceleration is greater than a set value, the inertia of wheel 32 rotates lever 22 and tilts cone 45, Fig. 3, raising pin 46 and thus releasing rear 53, Fig. 2, allowing the pawl 57 to engage the teeth of wheel 32 and prevent further rotation. A manually operated cable 5 controls a head 62 which can release pawl 63 to lock the device at any time. Further movement of head 62 engages a pin 61 on pawl 59 to unlock the device after automatic locking. In a further embodiment, Fig. 8, 9, and 10 (not shown), the straps from the pilot's harness are wound directly onto the reel, and a pin moving in a spiral grove sets limits to the amount of strap that the reel can wind or unwind. Specification 746,540 is referred to.
Patent GB-194434-A (GB)
Title: Improvements in and connected with coin freed gas meters
IPC: G07F15/02
Filed: 1921-12-20
Abstract: 194,434. Glover, W. R. Dec. 20, 1921. Gas, supplying by meter; coin action, mechanical-connection and multiple-coin.-Prepayment mechanism of the kind described in Specification 22830/94, in which the valve is operated by a slide carried by a pinion working between two worms, is made adjustable to receive different sizes of coins, for example a penny and a shilling, for delivering variable quantities of gas. The coin actuated crown wheel 22, Fig. 1, is connected to the lower worm by a sliding tube 27 secured by a screw 28 so that the distance of the crown wheel from the coin carrier may be adjusted to suit the coin used. The pawl for preventing backward rotation is made wide enough to be always in engagement. The upper worm 18 which is driven by the meter has a pinion 30 meshing with a worm 31, Fig. 4, on a sleeve 82 rotatably secured by collars 33 to a bracket 34. The sleeve 32 carries a wheel having external teeth 40 and a ring of internal shrouded teeth 41. Passing through the sleeve 32 is a shaft 35 one end of which passes through a stiffening-box and engages the forked end of a meter shaft in such a way that the shaft 35 may be moved longitudinally. The other end of the shaft 35 has an operating knob 37 and a pinion 36 which drives the sleeve 82 either directly by engagement with the shrouded teeth 41 or through idle opinions 42, 43, the pinion 43 being always in gear with the teeth 40. The shaft 35 is retained in either position by a sliding plate 44 pressed by a spring 50 into engagement with one of two grooves 38, 39 in the end of the shaft.