baber/WOPTO huggingface dataset:
Patent GB-648268-A (GB)
Title: Improvements in or relating to the concentration of vitamins
IPC: A61K31/59
Filed: 1947-07-31
Abstract: <PICT:0648268/IV (b)/1> Vitamin concentrates are produced from vitamin-containing oils by fractionation with a relatively low-boiling solvent in a countercurrent contacting zone to form counter-flowing extract and raffinate phases, the extract phase flowing upward under conditions of substantially constant temperature in a range near the critical temperature in which solubility decreases as temperature increases and, after withdrawal of the extract phase from the contacting zone, the solvent content of at least part thereof being reduced to produce reflux liquid which is returned to the fractionation zone to flow in countercurrent to the extract phase and in sufficient quantity to determine the fractionation of the oil between it and the raffinate phase.  The extraction and fractionation may take place in a tower 1 into which oil and solvent (both preferably preheated) are introduced at 4 and 2 respectively and from the top of which the extract phase is withdrawn into a vessel 12 where at least part of the solvent is distilled off, the residue, or part thereof, being returned to the tower through pipe 18.  Usually at the commencement of the operation valves 9 and 17 are kept closed so that refluxing is complete, but when equilibrium has been established one or both of them is or are opened and part of the concentrate withdrawn therethrough.  Alternatively the establishment of equilibrium p  conditions may be effected by adjustment of the temperature in the tower or the solvent: oil feed ratio.  The oil from which the vitamins have been removed is withdrawn through valve 7, by means of which the level of the surface thereof in the tower may be regulated to any desired point from below the solvent charging point to above the oil charging point. Preferred solvents are low-boiling paraffins, e.g. methane, ethane, butanes, pentanes or especially propane.  The process is applicable to the treatment of animal (including fish) and vegetable oils, e.g. to the extraction of vitamin A from shark liver oil or of vitamins A and D from cod or halibut liver oils, and particularly to the treatment of fish body oils.  The Specification as open to inspection under Sect. 91 comprises also a process substantially identical with that of the parent Specification, and the following further modifications: (a) controlling the fractionation by varying the pressure; (b) carrying out the process otherwise than in vertical countercurrent, i.e. by pumping the solvent and oil through a series of separate contact zones, which may or may not be maintained under the same conditions of temperature and pressure. Additional oils and solvents specified are: sardine oil, menhaden oil; low-boiling olefine hydrocarbons, dimethyl ether, dichlorodifluoromethane, methyl fluoride, ammonia.  This subject-matter does not appear in the Specification as accepted.
Patent GB-850521-A (GB)
Title: Travelling wave tube attenuator
Inventor: GITTINS JOHN FREDERICK
IPC: H01J23/30
Filed: 1956-07-05
Abstract: 850,521. Travelling wave tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 20, 1957 [July 5, 1956], No. 20861/56. Class 39(1). In a travelling wave tube in which a loaded hollow pipe waveguide has cavities of clover leaf cross-section formed by radial inward projections, the guide is divided into two longitudinal parts each terminated by an attenuator formed of non metallic blocks of power absorbing material comprising at least part of the inward projections and located on opposite sides of a dividing metallic plate between the two parts of the guide. The guide is loaded with transverse baffles and the lossy blocks are in contact with the dividing metal plate. The heat dissipated in the lossy material can thus be conducted away to the partition which is hollow for water cooling or may be provided with an internal water jacket or coiled pipes. The delay line is preferably of clover leaf type having baffles between adjacent resonators each baffle being provided with light slots, and adjacent resonators being relatively rotated by 45 degrees while the resonators themselves are given clover leaf form by four inwardly radially projecting fingers or wedges which give the magnetic field component radial as well as circumferential components. The wedges of the mid filter section of the delay line are recessed so that lossy blocks 4 can be inserted therein and adjustably preset to obtain the desired degree of magnetic field component current interception by the loss material and by the outer guide wall. Alternatively the lossy blocks can be fixed and soldered to plate 3 and adjustment of the relative amounts of magnetic field component current interception obtained by means of adjustable stubs in the waveguide walls, e.g. ring or sleeve stubs. The lossy material may be of porous alumina ceramic impregnated with carbon. The wedges or fingers 1 may be wholly of resistive (lossy) material. The lossy blocks may be so designed and positioned as to terminate each half of the delay line in its characteristic impedance so that together with plate 3 they provide complete isolation of the output from the input. The Provisional Specification states in addition that the invention can be applied to linear accelerators.
Patent GB-1066851-A (GB)
Title: Cushioned low level railway vehicle
IPC: B61G9/18
Filed: 1963-05-27
Abstract: 1,066,851. Railway vehicle draw-gear; railway vehicles. PULLMAN Inc. May 27, 1963 [Jan. 17, 1963], No. 21004/63. Headings B7L and B7T. A cushion underframe railway car comprises a centre sill 12 having a neutral axis positioned below the coupler line of draft, sliding sill 18, Figs. 1, 2, provided with couplers positioned at opposite ends so that their longitudinal axis C. Fig. 10, lies substantially on the coupler line of draft and on the longitudinal neutral axis Nss of the sliding sill, which neutral axis lies in a plane joining axes N of members 32 at either side of the sill. The railway, piggyback or box car 10, Fig. 1, comprises a fixed centre sill 12 from which there extends cross-bearers 14 and end sills 16 supporting side sills 17, and a sliding sill 18 mounting couplings and housings at each end supported by the sill 12 so that under buff and draw forces the sill 18 slides and compresses a centrally mounted cushion device 21, Fig. 6, comprising side springs 97 and a telescopic hydraulic constant force shock-absorber 22 surrounded by a return spring 77. The sill 12 may be deeper between the bogie pairs and includes side plates 24, Figs. 5, 8, top and bottom plates 27, 26, and tie-plates 28. The car is provided with a floor 29 and intermediate floor plates 68 supported by flanges 31 and gussets 13, and an assembly 92 covering the shock-absorber is detachably secured to the underframe. The sliding sill 18 comprises solid side members 32, Figs, 2, 5, 6 and 8 supporting coupling houses 34, see also Fig. 4 (not shown). and guided in angles 64 provided with wearplates 69, the ends 106, 107 of the members 32 being spaced apart in the unloaded position. A pocket for the cushion device 21 is formed in the sill 12 by a cut-out in the plate 27 and includes a base-plate 79 fixed between the sill side plates 24. Underframe stop lugs 81, 82, Figs. 2, 7, contact the shock-absorber followers 75, 76, and cross-members 84, 86 on the sill 18 also contact the followers to effect compression of the shockabsorber. The sill members 32 are connected by springs 97 and tie-rods 98 and by side-plates 88, horizontal plates 89. 91. and vertical lates 101 maintaining the shock-absorber 22 in alignment with the centre line of the car. In operation, when a draft force operates on one coupler only the force is transmitted from the coupler to the sliding sill members 32 and then through the plates 101 and 88 to the tie-rods 98. The sliding sill followers at the opposite end to the application of the draft force may then compress the shock-absorber alone against the opposing underframe stop for its full length of travel if necessary. In normal buff operation both the shock-absorber and the springs are compressed In a modification, Fig. 9 (not shown), the sliding sill is mounted on top of the cover-plate.
Patent GB-460439-A (GB)
Title: Manufacture of monobromopyrene
IPC: C07C17/12
Filed: 1935-07-24
Abstract: Pyrene is brominated directly to give monobrompyrene by adding bromine dissolved in a tertiary base or a solvent, or mixed with an indifferent gas, to a cold solution or suspension of pyrene. Examples describe the use, as solvents for the bromination, of pyridine, chloroform, water, hydrochloric acid, carbon tetrachloride, carbon bisulphide, glacial acetic acid, trichlorobenzene, or mixtures of pyridine with other solvents.  In another example, bromine mixed with air is passed into pyrene dissolved in chloroform.
Patent GB-1248898-A (GB)
Title: Improvements in or relating to printing cylinders
Inventor: MUSELIK M
IPC: B41F27/12
Filed: 1970-05-01
Abstract: 1,248,898. Clamping flexible printing plates to cylinders. ADAMOVSKE STROJIRNY NARODNI PODNIK. 1 May, 1970 [6 June, 1969], No. 21064/70. Heading B6C. A flexible printing plate 35 is clamped at each end to the plate cylinder 3 of an offset press by clamping means comprising a fixed jaw 81 (or 82) and a movable jaw in the form of an eccentrically mounted shaft 251 (or 252) which is parallel to the jaw 81 (or 82) and supported in bearings for rotation of the shaft to move the eccentrically disposed surface of the shaft towards and away from the jaw 81 (or 82) to grip and release the plate. A manually operable lever 12 on the shaft 251 (or 252) affects rotation thereof to the gripping position and spring means 13 are provided to urge the shaft through the lever 12 to the plate release position a latch 14 being releasably engageable under spring pressure with the lever 12 to hold the latter in the plate gripping position. The tension of the plate on the cylinder is adjustable by mounting the clamping means 81, 251 on a plate 5 which is adjustably mounted on the cylinder through spring means the plate 5 being movable circumferentially of the cylinder by rotating eccentrics 21, 22. Skewing of the plate on the cylinder is effected by moving the clamping means at each end of the plate axially of the cylinder in different directions, a rotatable wheel 30 being provided for this purpose.
Patent GB-294607-A (GB)
Title: Improvements relating to valves for the control of fluid under pressure
IPC: F16K39/02
Filed: 1928-07-20
Abstract: 294,607. Fabrik Elektrischer Apparate F. Sauter Akt.-Ges. July 27, 1927, [Convention, date]. Void [Published under Sect. 91 of the Acts]. Lift valves. - A screw-actuated lift valve 3 is balanced in respect of iniet pressure, as indicated by the arrow, by a piston 4 of similar diameter. The piston slides through packing 8 supported above and below by metal rings 6, 7 and compressed by a screwed ring 9. The screwed spindle is formed with a collar 15 rotatably disposed in a recess in the cover 10 to prevent movement axially.
Patent GB-423186-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/08
Filed: 1933-07-27
Abstract: 423,186. Grab-buckets. BARNARD, D. J., 8, Strathfield Gardens, Barking, Essex. July 27, 1933, No. 21133. [Class 78 (iv)] Relates to single-chain grabs of the type supported by a button on the chain whilst the trip mechanism is lifted from the discharging ring and the grab lowered to the ground. A pair of lifting pawls 21 with interengaging racks 23 are pivotally mounted on pins 20 in slots 19 in the grab-head plates 10, and a pair of trip pawls 27 for engaging the discharging ring 18 are pivotally mounted on the same pins 20. The pawls 21 are weighted at 24, the weighted ends resting upon lugs 25 on the plates 10. The pawls 27 are provided at the lower end with toe portions 28 situated within slotted portions of the pawls 21 and adapted to pass between the lugs 25 and to engage pins 12 in the grab head. With the closed grab suspended on the ring 18, as shown, the pins 20 are at the top of the slots 19 and the pawls 21 are horizontal. When the chain is payed out, the buckets are opened and the button 22 passes the pawls 21, displacing them momentarily about their pivots. When the chain is again hauled in, the button engages beneath the pawls 21, the open grab is lifted and the trip pawls 27 fall outwardly so that the open grab may be lowered past the ring. When the open grab rests upon the ground, the button 22 is lowered so that the pins 20 fall to the bottom of the slots 19 and the pawls 21, 27, rest upon the lugs 25 and pins 12 in the positions shown in Fig. 5. On hauling in the chain, the button passes between the pawls 21, the grab is closed, and the pawls 27 take over the discharging ring. Specification 225,367, [Class 78 (iv)], is referred to.
Patent GB-421200-A (GB)
Title: An improved method of using maximum demand-indicators and ampere-hour meters
IPC: G01R11/60
Filed: 1933-07-28
Abstract: 421,200. Supply meters. WEST & CO., Ltd., A., and BOSSOM, R. P., Lewes Road, Brighton, Siissex. July 28, 1933, No. 21248. [Class 37] The ampere hours or the maximum demand in amperes in a polyphase system is measured by connecting the secondary windings of current transformers, through rectifiers, in parallel to a meter or demand indicator, the primary windings of the transformers being in the phase wires. As shown applied to a fourwire three-phase system having phase wires p1, p2, p3 and a neutral wire pn, the primary windings of current transformers t1, t2, t3 are connected in the phase wires p1, p2, p3. The secondary windings are connected to copper oxide rectifiers r1, r2, r3, which are connected in parallel to the heating strip of a thermal demand indicator td, or to an ampere-hour meter.
Patent GB-927734-A (GB)
Title: Improvements in or relating to crawler tractors
Inventor: HOOKEY JACK
IPC: B62D33/063
Filed: 1961-06-13
Abstract: 927,734. Tractor fuel tank arrangements. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. March 30, 1962 [June 13, 1961], No. 21263/61. Class 79(3) [Also in Group XXXII] A fuel tank 3 is combined with a seat 2 of a crawler tractor, the unit being pivoted to the vehicle at 4 so as to give access, in the raised position, to steering clutches and transmission gearing disposed beneath the seat. Apertured lugs 8 and 9 are provided on the tractor and seat respectively, the apertures being in register to receive a securing pin in the lowered position and receiving the turned over ends of a bar 7 to hold the unit in the raised position. Holes 5 and 6 in the seat and tractor frames, respectively, receive bolts to additionally secure the seat in the lowered position. The fuel supply pipes are flexible.
Patent GB-970357-A (GB)
Title: Treatment of hydrocarbons
IPC: C10G47/00
Filed: 1963-05-28
Abstract: The hydrocracking of a nitrogen-containing hydrocarbon liquid is effected by contacting with hydrogen and a hydrogenation catalyst to convert nitrogenous impurities to ammonia, separating the effluent into gas and liquid, removing ammonia from the gas and recombining with the liquid and subjecting the mixture to hydrocracking. Hydrofining is effected over a Group VI and/or VIII metal or oxide or sulphide thereof, supported if desired, at 400-850 DEG  F., 50-2000 p.s.i.g., 0.5-20 vol/vol/hour with 200-10,000 SCF of hydrogen per barrel of feed. The liquid product is stripped with hydrogen and the gases combined with the separated gas from which ammonia is then removed by scrubbing with water or sulphuric acid.  Hydrocracking is then effected over an acidic cracking catalyst containing 0.1-40% of a hydrogenating component at 300-850 DEG  F., 300-5000 p.s.i.g., 0.1-10 vol/vol/hour with 1000-20,000 SCF of hydrogen per barrel. Hydrogen separated is recycled to both stages.
Patent GB-300567-A (GB)
Title: Improvements in and relating to pumps, inflators or compressors
IPC: F04B9/14
Filed: 1927-08-13
Abstract: 300,567. Lees, L. W., and Allbrighton, J. W. Aug. 13, 1927. Drawings to Specification. Combined stuffing-boxes and valves. - In a double-acting pump, tyre inflater, or compressor, the piston-rod passes through one of the inlet valves made in one with a stuffing-box.
Patent GB-1158907-A (GB)
Title: Blind Hole Anchor Nut Fastener Device
Inventor: JEAL HARVEY PHILIP
IPC: F16B29/00
Filed: 1966-05-13
Abstract: 1,158,907. Blind hole anchor nut fastener. AVDEL Ltd. 17 Nov., 1966 [30 Nov., 1965; 13 May, 1966], Nos. 50674/65 and 21428/66. Heading F2H. Blind hole anchor nut fastener comprising a tubular body portion 12 formed with a flange 20 and coaxial with an internally threaded tubular nut portion 11 which is tapered externally at 14 and formed with circumferential grooves 15, 16, 17 and is forceable into the tubular body portion 12 to expand the wall thereof outwardly so that the material of the body portion engages in the grooves of the nut portion to resist separation of the two portions. Grooves 51 bounded by burrs are provided to resist relative rotation of the two portions. The nut portion can be integrally formed with the body portion and be shearable therefrom, or the two portions can be formed as separate parts swaged together to form a single unit, in which case the nut portion can be of harder material than the body portion. The body portion 12 can be provided with external circumferential ribs or grooves (not shown). The flange 20 is provided with serrations 21 and may be internally countersunk. The threads of the nut portion are distorted in order to resist unscrewing of a bolt when the fastener is installed.
Patent GB-1030133-A (GB)
Title: Improvements in or relating to sound or data recording and reproducing apparatus andto combined sound recording apparatus and kinematograph cameras or projectors, and to magazines therefor
Inventor: FRANCIS JOHN HENRY
Filed: 1963-05-29
Abstract: 1,030,133. Cine apparatus. TECHNICOLOUR CORPORATION OF AMERICA. May 27, 1964 [May 29, 1963), No. 21443/63. Heading G2E. [Also in Division G5] A detachable and interchangeable magazine for a sound film projector comprises a casing 12, Fig. 1, containing a roller 21 forming a locating surface for a cylindrical drum 26 rotatable about an axis that is freely movable at least in a direction parallel to the tangent to the locating surface at its contact with the drum, access spaces being provided so that the drum may be driven by pressure rollers 66 and 70 in a projector. The spindle 27 of the drum may be loosely journalled in the casing with a clearance 30 of about 0. 02 inches to allow limited movement in any direction. The rollers 21, 66 and 70 preferably contact the drum at about equal spacings round its periphery so that the drum is accurately spaced with respect to the projector and its electromagnetic sound transducer 33. When the magazine is inserted into the projector the film path extends from the inner side of a spool to the roller 21, round the drum 26, over a guide 34, through the film gate 10, and back to the outside of the spool.
Patent GB-351274-A (GB)
Title: Improvements in steering devices for trailers attached to motor vehicles
IPC: B62D13/00
Filed: 1930-07-16
Abstract: 351,274. Coupling and steering gear for trailers. THOMAS, E. and MœLLER, P., Heideloh, Bitterfeld, Germany. July 16, 1930, No. 21488. [Class 79 (iii).] A device for steering trailers attached to motor vehicles comprising an horizontally-movable arm m pivoted to the motor vehicle and connected to the trailer draw-bar q is characterized by the feature that the arm is controlled by means of a screw spindle h mounted on the motor vehicle. In the construction shown the arm m works in a slot in a frame member p and is formed with a slot l engaged by a pin k fixed to a nut i traversed by the screw h, the screw being rotated by a handle g through the gearing shown.
Patent GB-377813-A (GB)
Title: Improvements relating to clips for use with collars, bows or neck ties
IPC: A41B3/12
Filed: 1931-07-28
Abstract: 377,813. Securing devices for collars and neckties. MORTON, T., Woodlea, Oxford Road, Moseley, Birmingham. July 28, 1931, Nos. 21505 and 26299. [Class 141.] A device for securing the flaps of a soft collar, and which may be modified for attaching neckties to collars, comprises a pair of levers c pivoted at d to spring arms b attached to the ends of a baseplate a. The ends also carry projections h for entering recesses in heads g on the ends of the pivoted levers c. In applying the invention for attaching bow ties to collars the baseplate is arched at the centre to form a part projecting upwardly between the adjacent ends of the levers to raise the material of the necktie and so prevent interference with the action of the levers. In this construction, the parts a, b instead of being made integral are connected together by rivets which form the gripping projections h. Specifications 167,290 and 181,609, [both in Class 141, Wearing-apparel], are referred to.
Patent GB-1003526-A (GB)
Title: A steam generating device
Inventor: ARISAWA KAZUO
IPC: F22B27/02
Filed: 1962-06-05
Abstract: 1,003,526. Centrifugal separators. FUJI BOILER CO. Ltd. June 5, 1962, No. 21618/62. Heading B2P. [Also in Division F4] A device for removing water droplets entrained in steam generated in a boiler (see Division F4) consists of an outer tube 13 into which steam is admitted tangentially through inlet pipes 12a, 12b and an open-ended inner tube 15 around which the steam whirls, dried steam entering both ends 14 of the tube 15 to discharge through an outlet 5a1, whilst separated water droplets drain through a pipe 16.
Patent GB-867919-A (GB)
Title: Improvements in or relating to means for securing track rails
IPC: E01B9/28
Filed: 1957-07-09
Abstract: 867,919. Securing railway rails. MOLYNEUX, G. June 17, 1958 [July 9, 1957], No. 21668/57. Class 104 (2). Rail securing means comprises a rigid plate 3 through which passes a bolt 5 and having a portion 3a overlapping the top and abutting the side edge of the flange 2 of a rail 1 to be secured to a support 6. The securing means includes means such as a nut 7 to force the plate down on to the rail and the support and also includes a cam member 4 which has a cam surface engaging a corresponding surface on the plate, the cam being rotatable about the bolt 5 and the arrangement being such that rotation of the cam without preliminary axial movement thereof produces a lateral shift of the railengaging portion of the plate 3. As shown, the cam 4 comprises a circular cylinder fitted into a corresponding recess in the plate 3, these corresponding cylindrical surfaces being eccentric to the bolt 5. Above the plate the cam member 4 has a polygonal flange 4a engageable by a tool for making the required adjustment to the lateral position of the plate. The Provisional Specification also describes constructions in which (a) the plate fits against both the flange and the web of the rail, and (b) the plate is circular in plan view but eccentric to the bolt, the cam member being omitted.
Patent GB-844273-A (GB)
Title: Improvements relating to organosilicon compositions for rendering masonry water-repellent
IPC: C04B41/50
Filed: 1958-07-07
Abstract: A composition for rendering masonry water-repellent comprises an aqueous solution of an alkali metal silicate and an alkali metal silanolate, i.e. an alkali metal salt of a hydrocarbon or halogenated hydrocarbon silane triol, in which the hydrocarbon radical may be alkyl, aryl, alkaryl or aralky and may contain fluorine, chlorine or bromine substituents.  In examples the compositions consist of aqueous solutions of sodium silicate and thesodium salt of methylsilanetriol.  The alkali metal silanotates may be made by hydrolysing silanes of the formula R SiX3, wherein R is an alkyl, aryl, alkaryl, aralkyl or halogenated hydrocarbon radical, and X is a halogen atom, amino group or alkoxy radical, recovering the resulting silane triol or condensate thereof and dissolving it in aqueous NaOH, KOH or CsOH.  In example (1) CH3SiCl3 was hydrolysed with excess water and the resulting triol, which separated as a fine powder, was filtered off and dissolved in 50% aqueous NaOH.