baber/WOPTO huggingface dataset:
Patent GB-418077-A (GB)
Title: Method of protecting highly stressed heating surfaces of recuperators
IPC: F28F9/20
Filed: 1933-08-05
Abstract: 418,077. Recuperators. REKUPERATOR GES., 53, Hindenburgwall, D³sseldorf, Germany. Aug. 5, 1933, No. 22083. Convention date, Dec. 3, 1932. [Class 51 (i).] That part of a steel recuperator B which is opposite the hot gas supply channel 2 is protected from the intense heat by an auxiliary recuperator A which absorbs some of the heat from the incoming hot gases and which is arranged so as wholly or partly to screen the main recuperator from the radiation of heat from the gas supply channel. The auxiliary recuperator is readily replaceable and comprises a series of highly refractory U-shaped tubes e, f connected in parallel. The medium to be heated, for example air, enters through a tube a and a portion, say 10 per cent is branched off through a tube c to the auxiliary recuperator and thence passes through a tube h to the outlet i<1> of the main recuperator, it being so arranged that the air streams leaving the auxiliary and main recuperators are heated to approximately the same temperature. Air from the tube c enters first the sides e of the U-shaped tubes which are opposite to the main recuperator so that the tubes e are kept comparatively cool and there results a reverse radiation of heat from the main recuperator to the tubes e. If it is advantageous to heat the air flowing through the auxiliary recuperator to a temperature lower than that of the air leaving the main recuperator then the output from the auxiliary recuperator is led into the main recuperator at a point where the temperature is approximately the same.
Patent GB-783733-A (GB)
Title: Improvements in flame-arrestors for dynamo-electric machines
IPC: H02K9/06
Filed: 1955-08-02
Abstract: 783,733. Flame arrestors for dynamo-electric machines. GENERAL ELECTRIC CO. Aug. 2, 1955 [Aug. 2, 1954], No. 22177/55. Class 47 [Also in Group XXXV ] A dynamo-electric machine is provided with a flame arrestor comprising a plurality of superimposed layers of highly conductive material maintained apart from one another by indentations in the material, the indentations being of a form unable to completely nest in one another. In one arrangement two flame arrestors 31, Fig. 3 are provided, each located in an annular passage, one adjacent the cooling air inlet and the other adjacent the cooling air outlet of the machine, and each comprising a strip of material having regularly spaced U-shaped indentations 33 extending across the width of the material, the strip being wound upon itself in spiral form. The shape of the indentations 33 is such that when two indentations are superimposed one upon another as at 38, they will not nest together. In a modification wherein the cooling air is adapted to pass radially, each flame arrestor may be formed from a plurality of superimposed annular strip 39, Figs. 5 and 6.
Patent GB-1304168-A (GB)
IPC: B22F9/08
Filed: 1971-04-19
Abstract: 1304168 Atomizing molten metal KELSEY HAYES CO 19 April 1971 [19 Feb 1970] 22202/71 Heading C7X Melting chamber 10 is sealed to main collecting chamber 12 by flange 18 and the molten metal is atomized by gas jets 28 as it falls through aperture 24. Inert gas is circulated in chamber 12 and a pressure control system maintains the pressure in 12 below that in chamber 10. The hot inert gas in 12 is discharged via 40 and recirculated through heat transfer loops 42 which contain a filter 44, heat exchanger 46 and motor driven fan 50. The tapering part of the chamber 34 is cooled by motor coils 38. As shown in Fig.2 the pressure control system comprises sensors 92, 100 connected to a relay 94 and a preset  vent valve 88 controls the pressure in chamber 10 at 2-3p.s.i.g. Relay 94 is preset to maintain chamber 12 at 1-2 p.s.i.g. lower than chamber 10. Prior to pouring molten metal blower 110 is energized and vacuum valve 106 is opened to withdraw gas from chamber 12 at a rate dependent on control valve 108 which is controlled by relay 94. The atomized particles fall from chamber 12 onto a refrigerated plate in a secondary cooling chamber 58 and are then discharged into a collector 16.
Patent GB-531736-A (GB)
Title: Improvements in or relating to the electrolytic production of lead hydroxide
IPC: C09C1/16
Filed: 1939-07-31
Abstract: 531,736. Electrolytic formation of lead hydroxide. PRIESTMAN COLLIERIES, Ltd., and FRENCH, T. G. July 31, 1939, No. 22207. Addition to 515,995. [Class 41] In the electrolytic preparation of lead hydroxide as described in the parent Specification, both electrodes are formed of lead, and the deposit of lead on the anode is avoided by periodic reversal of the current. In an example, a current of .25 to .3 amperes is used and is reversed at half-hourly intervals. The electrolyte is maintained at pH8 and at 15‹C.
Patent GB-591544-A (GB)
Title: An improved hydrocarbon alkylation process
IPC: C07C2/62
Filed: 1944-11-10
Abstract: An isoparaffin is alkylated, in the presence of sulphuric acid of more than 85 per cent by weight concentration, with propylene admixed with pentenes, the pentenes comprising from 10-90 per cent by volume of the mixture.  Butenes may also be present. 85-100, preferably 92-100 per cent acid is used to form an emulsion in the reaction zone containing 25-60 per cent by volume of acid.  Suitable operating conditions are temperature 0-80 DEG  F., pressure 50-300 p.s.i., contact time 10 mins.-2 hrs., external isoparaffin to olefin molar ratio 3-15 : 1, recycle ratio 15-800 vols. per vol. of fresh feed. Isobutane, propylene, and a C5 fraction containing pentenes may be mixed together with the acid and injected into a reactor under sufficient pressure to maintain them in liquid phase, an emulsion being formed which is in part withdrawn at the top of the reactor, stratified to separate acid for recycling and distilled in stages to separate propane, isobutane, n-butane and alkylate, and in part recycled. Other isoparaffins such as isopentane may be reacted similarly. In an example, 75 per cent by volume of a mixture of equal volumes of propylene and pentenes with 25 per cent of butanes is used to alkylate isobutane using acid of 97.8 per cent falling to 85.5 per cent when spent, a temperature of 40 DEG  F., external isobutane to olefin molar ratio of 7-1, and emulsion recycle ratio of 808/1, the acid consumed by the propylene being only half that when pentenes are absent.  Specification 531,383 is referred to.
Patent GB-750337-A (GB)
Title: Improvements in or relating to the heat insulation of cold-storage chambers
IPC: F25D23/06
Filed: 1953-08-12
Abstract: 750,337. Heat insulation. ISOLERINGSAKTIEBOLAGET W. M. B. Aug. 12, 1953 [Aug. 13, 1952], No. 22213/53. Class 64(2). In a cold storage chamber in which the heat-insulating walls include a circulation system of spaces and distributing channels through which air, dried by passing through a cooler in the upper part of the system is circulated in contact with the heat insulation by the natural draught resulting from at least two intercommunicating air columns of different temperatures, the spaces are at least mainly in the colder part of the insulation and a conduit connected between two distributing channels at different levels is supplied with heat to increase the draught. Alternatively, a conduit is so connected in the system that the air in it passes two or more times through the cooler with intermediate upward flow in heat transfer relation with the air in the cold storage chamber, so as to absorb heat from that air and so increase the draught. In the form shown, the air is heated, say from -20‹C. to -16‹C., in the vertical column 50 by an electric heater. It then passes through parallel diffusing spaces connecting the distribution channels 60, 62 in the ceiling, and successively through horizontal diffusion spaces connecting vertical channels in the walls 14, 16, 10. It is then dried in the cooler 38, and passes through the column 40 to channels 42, 46 and connecting spaces in the floor, before being re-heated in the column 50.
Patent GB-919753-A (GB)
Title: Circuit arrangement for energizing electric discharge devices
IPC: H05B41/24
Filed: 1961-06-20
Abstract: 919,753. Circuit arrangements for discharge lamps. WESTINGHOUSE ELECTRIC CORPORATION. June 20, 1961 [July 18, 1960], No. 22266/61. Class 38 (4). The supply circuit for a fluorescent lamp 12 comprises a high-frequency square-wave source 14 connected to a transformer 20 and to a ballast 34, the transformer having a secondary winding 26 providing a starting voltage for the lamp 12 and windings 28, 30 energizing its heating filaments 16, 18. Passage of running current to the lamp through the transformer 20 is prevented by a capacitor 32 which impedes all but the higher harmonic current components, and these in turn are impeded by the ballast 34 to prevent the high starting voltage from reaching the source 14, the ballast 34 thus delivering running current to the lamp less square than the source 14. Capacitance means for power factor correction may be connected across terminals 36, 38.
Patent GB-952407-A (GB)
Title: Method of producing a phenol from an aromatic compound
Inventor: DUNDEE BEN
IPC: C07C37/58
Filed: 1962-06-08
Abstract: A method of producing a phenol from an aromatic compound consisting of benzene, toluene, a higher homoloque of benzene or a mixture thereof comprises passing a mixture of the aromatic compound and an oxygen containing gas through a fluidised bed of finely divided, non-catalytic, non-reactive solid material at a temperature between 300 DEG  to 750 DEG C., reacting the aromatic compound and oxygen-containing gas immediately above and contiguous to the bed, whereby a phenol is formed, quickly cooling the reaction products by parallel heat exchange preferably so that the reaction products are cooled by the mixture of aromatic compound and oxygen containing gas prior to the passage of the latter through the fluid bed, the aromatic compound and oxygen containing gas being thus preheated to a temperature between 375 and 500 DEG C., and separating the phenol. The reaction may take place under a pressure of more than 5 atmospheres e.g. 10 atmospheres and the ratio of the reactive oxygen and atomatic compound is between 1 to 20 and 1 to 4.  The reactor preferably has an aluminised surface to prevent degradation of the aromatic compound.  The specific description relates to the preparation of phenol from a mixture of 50% benzene, 50% air and drawing of a suitable apparatus is given. Specification 903,868 and U.S.A. Specifications 2,223,383 and 2,367,731 are referred to.
Patent GB-403173-A (GB)
Title: Improvements in or relating to rolling shutters
IPC: E06B9/68
Filed: 1932-08-10
Abstract: 403,173. Preventing fires. DENNISON, KETT, & CO., Ltd., and MOSS, D. J., Kenoval House, Farmers Road, London. Aug. 10, 1932, Nos. 22371 and 31543. [Class 47 (ii).] Means for initiating the closure of a rolling shutter in case of fire comprises a gapped rotary driving member which normally is held inoperative by a fusible link and is arranged, when released, to be driven by a spring and engage a rotary member associated with the shutter. The double shutters 1 are wound on drums 2 and normally are operated by a manual winding gear comprising a hand wheel 16, shaft 12, and bevel gears 11, 10, 8, 7. The automatic closing gear comprises a pinion 18 fast on the shaft 12 and a driving drum. The latter comprises a gear wheel 19, Fig. 5, which is rotatably mounted on a shaft 27 and has some of its teeth removed to leave a gap 20. Normally, the drum is held, with its gap 20 opposite the pinion 18 and its driving spring 24 wound up, by a cable 30 embodying a fusible link. When the link melts, the drum is rotated by the spring 24 so that the gear wheel 19 drives the pinion 18 in a direction to lower the shutters. The drum is arrested by stops 28, 29 after one revolution, the lowering of the shutters continuing under gravity. In a modification, the automatic closing gear is applied to a double self-coiling shutter. The gear wheels described may be replaced by friction wheels or spur wheels.
Patent GB-149910-A (GB)
Title: Improvements in or relating to chain grate stokers
IPC: F23H11/04
Filed: 1920-07-28
Abstract: 149,910. Babcock & Wilcox, (Assignees of Soc. dite Fonderies et Ateliers de la Courneuve, G. Mourlam, and M. Sutter). July 30, 1919. Grates.-The links of a chain rate are constructed to obviate accidental displacement, but allow easy removal when the grate is in motion. Each link A is provided at the lower edge with two oblique parallel slots which engage with the cross-rods a, and at one side with a number of (preferably three) outwardly extending tenons or bosses t which are arranged as single and double tenons as shown. Alternate links are turned in opposite directions to bring the bosses t into engagement, Fig. 4 showing two links ready to be engaged with the cross-rods a and with each other. When the links are moved into their working positions the single and double tenons are engaged with each other and can only be disengaged by an intentional reverse movement.
Patent GB-422964-A (GB)
Title: Improvements in or relating to electric switches particularly for wireless or telephony
IPC: H01H19/635
Filed: 1933-08-12
Abstract: 422,964. Mechanical switches without quick action. WILKINS & WRIGHT, Ltd., and HEWITT, J. H., Utility Works, Holyhead Road, Handsworth, Birmingham. Aug. 12, 1933, No. 22526. [Class 38 (v)] A switch, particularly for wireless or telephony, comprises a stationary insulating strip 6 having fixed to it, for example, by means of rivets 15, a number of inverted U-shaped contact springs 14 adapted to be engaged by bridging contacts 17 on a movable strip 11 that is connected to the strip 6 by links 12, 13. In the form shown, there are two bridging contacts 17 each adapted to connect the centre of a group of three contacts 14 to one or other of the outer contacts of the group. Each contact 17 consists of a U-shaped wire, the ends of which are passed through holes in the strip 11 and then bent over as at 18. The strip 11 may be actuated by rotation of a knob 28 which moves a crank 25, the slotted end of which engages the end of an arm 27 forming part of the link 13. Alternatively, the strip may be actuated by a push rod or other means. In modifications, there are more than two strips 6, 11, alternate strips being stationary.
Patent GB-1503544-A (GB)
Title: Defect compensation systems
IPC: H04N9/882
Filed: 1975-05-23
Abstract: 1503544 Television RCA CORPORATION 23 May 1975 [6 June 1974 21 April 1975] 22584/75 Heading H4F Defects in a video signal read from a disc store of capacitance type, are marked by substituting for defective signals, the signal from the previous line delayed by one line period. A zero crossing detector 15, Fig. 1, provides a pulsed FM signal to defect detector 30. This signal amplitude modulates a carrier J. Under "normal" conditions the "normal" AM signal at terminal N of switch 23 is applied via output O to amplifier 40, 1H delay line 50 and comb filter 70 which also receives the delayed signal, via amplifier 60. Comb filter 70 separates interleaved chrominance and luminance components. Under defect conditions determined by the occurrence of frequencies in the pulsed FM signal lying outside a predetermined band, switch 23 takes its output from terminal S which receives the output of delay 50 via amplifier 60 and all pass network 90 which includes a facility for optimum adjustment of the substitution signal level. In a further embodiment Fig. 2 (not shown) the amplitude modulation is deferred until the pulsed FM signal has passed the switch. In this case a demodulation circuit is required in the substitution signal feed back loop. The effect of "jitter" introduced upon reading the disc is overcome by generating J under the control of a phase locked loop. A delay of half the buried sub carrier frequency is imparted to the substitution signal giving it the correct phase relationship with the recovered signal to enable the comb filter to work properly in the substitution mode.
Patent GB-1115311-A (GB)
Title: Improvements in and relating to a mechanism for automatically moving filter plates
IPC: B01D25/172
Filed: 1965-05-28
Abstract: 1,115,311. Filter press opening mechanism. SEITZ - WERKE G.m.b.H. 28 May, 1965 [30 May, 1964], No. 22679/65. Heading BID. [Also in Division B8] A mechanism for automatically moving filter plates 7 in filter presses comprises at least one rotatable conveyor member 11, haying a helical conveyor groove 12 and being movable axially along the filter press by means of at least one actuating member 30, 50, having a continuous displacement action on the conveyor member 11 when the member 11 is rotating for one direction of travel of the conveyor member, the helical conveyor groove 12 being such that when it engages the filter plates 7 they are moved in the opposite direction to that of the conveyor member. In the embodiment of Fig. 1, member 11 is rotated by rotating rod 10 and the member 11 is moved to the left by engagement of thread 32 on the surface of member 11 with the actuating member i.e. stationary rack 30. The pitches of thread 32 and helical groove 12 are such that as member 11 moves to the left, the plates 7 whose handles 18 engage in the groove 12 are moved to the right. When all the plates have been moved to the right, rack 30 is disengaged from member 11, the rotation of rod 10 and member 11 is reversed, and member 11 moves to the right due to engagement with handles 18. Plates 7 are then moved to the left by hydraulic means. In the embodiment of Fig. 7 (not shown), member 11 engages bars 34 extending across the top of the filter plates, the bars 34 being shaped to engage groove 12. In the embodiment of Fig. 8, the actuating member is a split screw nut 50 removably mounted on rotating threaded rod 10 but which nut is prevented from rotation by attached yoke 52 and bars 53, 54 which engage on the plate handles 18. Thus, as the rod 10 rotates, nut 50 moves to the left, pushing rotating member 11 with it. The plates are moved to the right by engagement of groove 12 with plate handles 18.
Patent GB-955423-A (GB)
Title: Improvements in silicone rubber compositions
IPC: A61J1/00
Filed: 1960-06-30
Abstract: A silicone rubber-forming composition comprises a diorganopolysiloxane, a filler and an organic peroxide, and also contains from 0.001 to 1.0% by weight of a diketone, a ketoacid ester or a keto alcohol, preferably acetylacetone, acetoacetic acid ester or diacetone alcohol.  The rubber-forming compositions used are the standard formulations known in the art.  In examples, (1) acetyl acetone, and (2) acetoacetic ester or diacetone alcohol, were added to a composition of a dimethylpolysiloxane, fumesilica, and benzoyl peroxide in liquid dimethyl polysiloxane, and the resulting compositions were heat cured.  Uses: for making stoppers for glass containers in which antibiotics are stored.
Patent GB-297021-A (GB)
Title: Improvements in pumps more particularly intended for pumping viscous liquids
IPC: F04B1/32
Filed: 1927-05-10
Abstract: 297,021. Johnson. J. Y., (Wicaco Screw & Machine Works, Inc.). May 10, 1927. Divided on 296,800. Disconnecting actuating- mechanism; mountings; revolving-cylinder pumps. -In a pump for viscous liquids comprising a rotor 2 provided with bores 27 in which plungers 26 are reciprocated by a cam 15, the intake and. discharge ports 34, 33 in the casing 1 are arranged on a line transverse to and laterally offset from the axis of the rotor 2, and the casing is pivoted between supply and delivery pipes 36<a>, 35<a>, which register on the two ports 34, 33, so that excessive pressure in the pump turns the casing about the axis of the ports 33, 34 and disengages the driving pinion 5 on the rotor from the driving worm 37. Specifications 297,022 and 296,800 are referred to.
Patent GB-288087-A (GB)
Title: Improvements in the tension devices of braking apparatus of cylinders, principally of warp beams for weaving looms
IPC: D03D49/08
Filed: 1927-09-05
Abstract: 288,087. Cornu, A. June 14, 1927, [Convention date]. Permanently - applied; applied by springs; band or coil. - Relates to brakes for cylinders, particularly warp beams for looms, in which a cord, band or other brake member is normally maintained tensioned about the cylinder by a spring and consists in means whereby the tension on the cord or band may readily be released and be reapplied at the same value without interfering with the usual adjusting device. The brake band 3 wrapped around the cylinder 1 has one end attached to a rod 4 upon which is fitted a sleeve, 5 with a head 6. The rod and sleeve traverse a block 9, secured to the frame 2 and a block 13 which abuts on the block 9. The spring 7 which applies tension to the brake band 3 abuts against the head 6 of the sleeve 5 and against an adjusting hand-wheel 8 on the rod 4. The block 9 is rotated transversely so as to form inclined surfaces 12, 12<1> thereon and the block 13 is formed with corresponding double-bevel surfaces 14, 14<1>. Normally the block 13 is in the position shown in Fig. 1 in which the ridge of the surfaces 14, 14<1> abuts on the points of the block 9 and the spring 7 is thus in compression, but by giving the block 13 a quarter turn the surfaces 14, 14<1> of this block become seated on the surfaces 12, 12<1> of the block 9 so that the compression is taken off the spring and the brake is released.
Patent GB-745573-A (GB)
Title: Improvements in and relating to the construction of drums, rollers and the like
IPC: B65H27/00
Filed: 1953-08-25
Abstract: 745,573. Rollers, spar drums &c. for drying paper &c. HALL & KAY, Ltd., HALL, S., and KAY, A. Aug. 6, 1954 [Aug. 25, 1953], No. 23366/53. Class 96. Drums, rollers, particularly spar drums &c., are stiffened by longitudinal bars 15, each secured at both ends as by nuts 16, to endplates 6 and bowed outwardly to pass through openings 13 near the circumferences of intermediate stiffening-plates 12 secured to the shaft 4 of the drum &c. which may be fixed or may rotate in bearings 5. The construction reduces sagging of rollers and like supports, e.g. for festoon drying of paper &c.
Patent GB-1036485-A (GB)
Title: Improvements in or relating to a reversible, inward flow, independent power turbine
Inventor: PICKERING ALBERT WILLIAM
IPC: F01D17/16
Filed: 1964-06-05
Abstract: 1,036,485. Turbines. BRISTOL SIDDELEY ENGINES Ltd. June 3, 1965 [June 5, 1964], No. 23376/64. Heading F1T. A reversible, inward-flow, independent power turbine comprises a rotor 1, Fig. 2 (not shown), and a plurality of nozzle-defining members 2, Fig. 1, arranged circumferentially around the rotor, each member being pivotally mounted about an axis parallel to the rotor axis by means of trunnions 5 extending from each side of the member, the trunnions carrying gear wheels 6 which are arranged to be rotated by means of ring gears 7 at each side of the rotor. The ring gears 7 in turn are rotatable by means of a gear 8 and stub shaft 9. The nozzle members 2 are of cylindrical form and have nozzle passages 11 extending therethrough. The nozzle passage of each member is completed by a pair of projections 12. The nozzles are adapted to direct working fluid from the inlet volute 3 on to the turbine rotor blades, the fluid discharging at both sides of the rotor into discharge volutes 4. The nozzle members are moved simultaneously to the opposite position to cause reverse rotation of the rotor. Sealing members in the form of cylindrical pins 14 are disposed between the adjacent pairs of nozzle members so as to prevent leakage of working fluid therepast. In the extreme position of the nozzle members shown in Fig. I one of the projections 12 of each member abuts against the adjacent member so as to form an additional seal. The nozzle members may be of wholly cylindrical form, the cylindrical surfaces of adjacent members being in contact so as to render special sealing means unnecessary.