baber/WOPTO huggingface dataset:
Patent GB-1245542-A (GB)
Title: Improvements in mastercylinders for hydraulic brakes of motor vehicles
Inventor: WODESLAVSKY JOSEF
IPC: B60T11/20
Filed: 1969-04-11
Abstract: 1,245,542. Master cylinders. J. WODESLAVSKY. 11 April, 1969 [12 April, 1968], No. 18781/69. Heading F2F. A master cylinder 1 for the hydraulic brakes of a motor vehicle comprises chambers E, D for hydraulic liquid for the supply of liquid to the braking systems of the front and rear wheels of the vehicle, and two pistons 2, 3 positioned one behind the other and working in the bore of the master cylinder. The piston 2 at the front end of the master cylinder is adapted to open and close the liquid supply from the chamber D to one of the braking systems B and the other piston 3 opens and closes the liquid supply from chamber E to the other braking system A. The chamber D is connected directly to the braking system B and the other chamber E is connected to the other braking system A through a bore M in the wall of the body of the master cylinder and a bore K in the body of the piston 2, each of the pistons being adapted to interrupt the flow of liquid from one of the chambers when a defect occurs in the mastercylinder or a leakage occurs in the conduit to one of the braking systems, while permitting the other braking system to operate normally. As shown, the piston 2, 3 have recesses 2<SP>111</SP>, 3<SP>11</SP> in which are slidable rods 2<SP>11</SP>, 8, which may be of equal length, carrying piston heads 4<SP>1</SP>, 4 in housings 4<SP>11</SP>, 5 biased relative to the heads by springs 4<SP>111</SP>, 6. The spaces G, F communicate with outlets B, A connected to braking systems for the front and rear wheels respectively of a vehicle. In operation, when pressure is applied by a brake pedal and piston 3 moves in direction of arrow 3<SP>111</SP>, the head 4 of the piston closes the bore K to prevent flow of liquid from chamber E into space F, further movement of the pedal causing the head 4<SP>1</SP> of piston 2 to close the bore H between the chamber D and space G so that pressure is generated in the brake systems connected to outlets A, B. In the event of leakage occurring in, e.g. the system connected to outlet A the pressure exerted by the brake pedal pushes the piston 3 against bore K and piston 2 when the latter closes the bore H, so the pressure is maintained in the system connected to outlet B whereby the front wheel brakes are operated. Similarly, pressure is maintained in the braking system A to operate the rear wheel brakes when leakage occurs in the system B, the piston head 4<SP>1</SP> closing the bore H. In a modification, separate fluid chambers E, D communicate directly with the spaces G, F.
Patent GB-1076238-A (GB)
Title: Improvements in or relating to meters for measuring the amount of heat exchanged by a heat exchange system
Inventor: WESP ADAM
IPC: G01K17/10
Filed: 1966-04-28
Abstract: 1,076,238. Heat exchange meters. TECHEM GESELLSCHAFT ZUR AUSWERTUNG TECHNISCH - CHEMISCHER VERFAHREN UND PATENTE m.b.H. April 28, 1966, No.18796/66. Heading G1D. A meter for measuring the amount of heat exchanged by a heat exchange system such as a central heating installation produces a rotation as a function of the temperature in the inlet and outlet conduits and the rate of flow of the heat conveying medium in such a way as to determine the amount of heat exchanged. The meter comprises a rotary member 2 located in at least one of the inlet and outlet conduits, and adapted to be rotated by the flow of the heat conveying medium. First and second coupling means 21<SP>1</SP>, 22<SP>1</SP> are provided each having a driving part 15, 16 driven by the rotary member 2 and a driven part 17, 18 coupled to the driving part by a viscous liquid 35, 36 whereby torques and rotational movement may be transmitted between the parts. The temperature of the viscous liquid is maintained at the temperature of the heat conveying medium in the inlet and outlet conduits by means of heat conducting material 23, 28. The driven parts 17, 18 of the coupling means rotate the input shaft 31 of a counting mechanism by means of torque transmitting means 29, 30 coupled one with the other for rotation in such a direction that the torque transmitted from the first coupling means 21<SP>1</SP> to the first torque transmitting means 29 is opposed to the torque transmitted from the second coupling means to the second torque transmitting means 30. The transmission ratios between the rotary member 2 and the coupling means 21<SP>1</SP>, 22<SP>1</SP> and between the latter and the torque transmitting means 29, 30 are such that no rotary motion is transmitted to the input shaft 31 when the temperatures of the viscous liquids 35, 36 are equal. In the embodiment shown in Fig. 3 two rotary members are provided, one in each of the outlet and inlet conduits. The rotary member 2 may be connected to the shaft 9 by a magnetic coupling or directly connecting the shaft to the hub 4 of the rotary member.
Patent GB-1500231-A (GB)
Title: Heat exchangers
IPC: F28D19/02
Filed: 1975-07-25
Abstract: 1500231 Thermal regenerators STONEPLATT FLUIDFIRE Ltd 25 July 1975 [30 April 1974] 18854/74 Heading F4K Heat is exchanged between two gas streams (e.g. hot and cold air streams, or air and combustion gases) via fluidized beds positioned in each gas stream, the beds being substantially at the same level and the bed particles being caused to migrate from each of the beds to the other. The bed particles may be of alumina or zircon. Fig. 1 shows one arrangement wherein fluidized beds 24, 23 disposed respectively in the hot gas duct 14 and air duct 15, are interconnected via an opening 25 in the wall 12 separating the two gas streams. The beds 23, 24 rest on a perforated support 16 in which are slits 27 shaped as, e.g. in Fig. 4 to produce a horizontal flow component in the air or hot gas passing upwardly through the support. The disposition of the slits 27 (e.g. in zones as indicated at 29- 33 in Fig. 2) is such as to cause a circulatory flow of particles between the beds 23, 24 (as indicated by arrows in Fig. 2). 26 is a central guide partition separating particle streams flowing in opposite directions. The perforated support (e.g. 16) may slope in the direction of particle flow thereover. The flow rate of particles between the two beds may be regulated at the opening 25 by means such as a rotary valve. The hot gas fluidizing and heating the bed 24 may emanate from a burner 33, or it may comprise boiler flue gases entering at 17. A blower 18 supplies the air which fluidizes and is heated by the bed 23, the heated air being discharged at 22 to the point of use. The hot gases cooled in the bed 24 are discharged via a blower 20 to a flue 21. To prevent gas leakage into the air stream a higher air pressure is maintained. In another scavenging arrangement described (Fig. 5) the parts of the partition wall respectively above and below the bed-connecting opening are laterally offset. A modification described (Figs. 3 and 5) comprises a two-stage apparatus in which the heat exchanging gases are both directed in series through a plurality of the fluidized beds.
Patent GB-1087467-A (GB)
Title: Improvements in or relating to the controlling of industrial processes
Inventor: PHILLIPSON ALAN
IPC: B21C31/00
Filed: 1964-05-06
Abstract: 1,087,467. Photo-electric velocity measurement. DECCA Ltd. April 22, 1965 [May 6, 1964], No. 18889/64. Heading G1A. [Also in Division G3] The velocity of a length of metal in a rolling mill is derived from the Doppler shift in frequency created on a laser beam after reflection from the surface of the moving metal. The laser beam is directed along the line of movement to produce the greatest shift in frequency and the beat frequency signal, resulting from a comparison of the frequencies of the transmitted and reflected laser beams, produces a D. C. signal whose amplitude is proportional to the velocity of the metal. The D.C. velocity signal is used retroactively to control the velocity of the metal leaving an extrusion press, the error signal so derived adjusting the pressure of the rollers of the press. The D. C. velocity signal when integrated indicates the length of metal having moved past the laser position, and by feeding a moving cutter with the velocity and integrated signals it can cutoff predetermined lengths whilst the metal is still moving. In another arrangement an integrated velocity signal for the whole length is fed into a logic dividing circuit, determining the number of equal lengths of metal falling within a predetermined length range into which the whole metal length can be cut.
Patent GB-626522-A (GB)
Title: Refining of mineral oils
IPC: C10G19/08
Filed: 1947-07-16
Abstract: <PICT:0626522/III/1> Spent alkali metal hydroxide solutions containing mercapto compounds, obtained in the refining of petroleum oils, are regenerated by subjecting them to elevated temperatures and pressures and separating the layer of mercaptans from the alkali. As shown, the spent alkali solution, which may be sodium hydroxide solution, in treating zone 1 is passed by line 5 to storage zone 6 and then to zone 7 in which it is heated.  It is maintained under a pressure at least sufficient to keep the constituents in the liquid phase and passed to settling zone 10. After separation of mercaptans from sodium hydroxide solution, the alkali is withdrawn by line 16 and pressure release valve 17 into flash zone 18 in which the residual mercaptans and water vapour are removed overhead.  The regenerated alkali is withdrawn by line 24, cooled and passed to storage zone 26 from which it is recycled to treating zone 1.  The liquid mercaptan separated in separation zone 10 is combined with the mercaptan condensed from flash zone 18.  Some vaporization may be allowed to take place from the top of separation zone 10 by line 11. The temperature of the alkali solution may be about 300-700 DEG  F., but is preferably about 500 DEG  F., and the pressure may be 25-50 per cent in excess of that required to keep the constituents in the liquid phase.ALSO:Mercaptans are separated from alkaline solutions containing them by subjecting the solution to an elevated temperature, e.g. 300-700 DEG  F., under a pressure sufficient to maintain the constituents in the liquid phase, and separating the layers formed.
Patent GB-891153-A (GB)
Title: Improvements in or relating to a method of manufacturing nodular graphite steel
IPC: C22C38/00
Filed: 1958-06-13
Abstract: A method of making steel castings having graphite in the spheroidal form comprises adding to a molten steel bath containing more than 0,4% but less than 1,7% carbon, 0,2 to 6,0% of a Ca-Fe alloy or 0,5 to 8% of Ca Si, a sufficient amount of calcium being retained to produce spheroidal graphite.  The Ca Fe alloy used may be 10-80% Fe, 5-40% Ca, and 5-55% of one or more of Ni, Si, Al, or Mn, the castings retaining less than 0,2% Ca. Cerium may also be added in sufficient amount that 0,005 to 0,15% is retained.  The alloy steels to which the invention may be applied may also contain 0,4-6% Si, 0-15% Mn, 0-30% Ni, 0-2% Cr, 0-1% Al, 0-3% Mo, 0-2% Ti, 0-30% Co, and 0-1% Zr.
Patent GB-1103512-A (GB)
Title: Cross-linked polymers and process for preparing them
IPC: C08F18/04
Filed: 1965-05-05
Abstract: Cross-linked polymers are prepared by a process wherein an unsaturated b -keto acid ester is polymerized or copolymerized in the presence of a water-soluble or oil-soluble catalyst and an emulsifier and/or water-soluble polymeric protective colloid, and the polymer or copolymer obtained is subsequently cross-linked with a cross-linking agent, other than a polyfunctional carboxylic acid hydrazide, which reacts with b -keto acid esters.  The polymers may be derived from vinyl and allyl esters of acetoacetic and alkylidene acetoacetic acids, optionally with vinyl, acrylic, methacrylic, maleic and fumaric esters, styrene, vinyl chloride, ethylene and isobutylene. Specified cross-linking agents are reaction products of formaldehyde with urotropin, barbituric acid, urea, melamine and bis-(hydroxyethyl) sulphone; urea/formaldehyde/ethylene diamine and urotropin/urea/ethylene oxide condensates; terephthalic acid diethylene imide, tris(aziridinyl) and tris (2-methylaziridinyl)/phosphine oxide and dicarboxylic acid anhydrides such as maleic anhydrides; optionally activated wth magnesium chloride or sodium nitrate. Specified catalysts are hydrogen peroxide and alkali metal persulphates, which may be activated with sodium bisulphite or sodium formaldehyde sulphoxylate.  Specified emulsifiers and protective colloids are sodium lauryl sulphate, sodium alkylbenzene sulphonates, sodium oleate, sodium stearate, benzyltrimethyl and stearylbenzyldimethyl ammonium sulphates, and condensates of ethylene oxide with nonyl phenol or oleyl alcohol; and polyvinyl alcohol, sodium polyacrylate, hydroxyethyl and carboxymethyl celluloses, sodium alginate, gum arabic and starch derivatives. The products of the invention may be used in paints and adhesives, and for treating leather, textiles and paper.  In an example vinyl acetate and allyl acetoacetate are copolymerized in aqueous emulsion in the presence of sodium p-dodecylbenzene sulphonate, sodium vinylsulphonate and potassium persulphate; and the products cross-linked with maleic anhydride, triaziridinyl phosphine oxide, terephthalic acid diethylene imide, urotropin, urotropin and formaldehyde, barbituric acid and formaldehyde, hexamethylol melamine, dimethylol urea, and bis(hydroxyethyl)sulphone/formaldehyde, urea/ethylene oxide, urea/formaldehyde, urea/formaldehyde/ethylene diamine and melamine/formaldehyde condensates.
Patent GB-153376-A (GB)
Title: Improvements in electric lamp holders for the lamps of motor and other vehicles
IPC: H01R33/22
Filed: 1919-07-31
Abstract: 153,376. Rowe, R. F. July 31, 1919. Holders.-An insulating block a, threaded externally to engage a vehicle lamp body, has a centrally - disposed screwed metal lampsocket c and a screwed centre contact f, which may be withdrawn to break contact. One lead enters through a passage j<1> and is secured to the socket, and the other lead is secured to a washer k held by a flange on a screwed plug e through which the contact screw f passes. The screw f is provided with a lock-nut h. The lamp may be locked in its socket by a screw d.
Patent GB-925215-A (GB)
Title: Improvements in rear view optical systems for use in vehicles
Inventor: HYDE WALTER LEWIS
IPC: B60R1/10
Filed: 1961-05-25
Abstract: 925,215. Reflector systems. AMERICAN OPTICAL CO. May 25, 1961, No. 19016/61. Class 97 (1). [Also in Group XXXII] A rear-view optical system in a vehicle 12, Fig. 1, comprises a converging cylindrical objective lens 20 disposed between front and rear roof portions 14, 22; a plane mirror 18 disposed under the roof portion 14; and a concave cylindrical eye mirror 10 disposed in front of the driver and below the mirror 18, the lens and the mirrors being in alignment on a common optical axis 24, 24a, 24b, 24c and the axes of the cylinders 10, 20, Fig. 3, being substantially horizontal, transverse to the optical axis and substantially parallel to and spaced from each other a distance, as measured along the optical axis, approximately equal to the sum of their focal lengths, whereby an erect image of an object to the rear of the vehicle will be seen by the driver. The mirror 10 is hinged at 10a to permit adjustment of the system to suit different drivers. A converging cylindrical field lens may be placed between the lens 20 and the mirror 18 at the focal plane of the lens 20, to increase the field of view in the vertical direction and also control the magnification or demagnification in that direction, if desired. The field of view, in the horizontal direction, may be increased by using an objective lens assembly as shown in Fig. 7, wherein a plano-convex cylindrical lens 150, whose cylinder axis is horizontal, is cemented to a planoconcave cylindrical lens 152, whose cylinder axis is vertical. This will cause a reduction in the width of the image in the horizontal direction and to avoid distortion the height of the image can be correspondingly reduced by choice of the focal lengths of the objective and eye mirror or by axial movement of the field lens. In a modification the eye mirror may be positioned adjacent the vehicle dashboard and thus reflect light upwardly to the eyes of the driver. The system shown in Figs. 1 and 3 may be duplicated, i.e. one on each side of the central longitudinal axis of the vehicle, in which case the optical axis 24 will converge towards the front of the vehicle. Hinged opaque or translucent, and filter screens may be provided in front of the objective. The objective may be modified to incorporate between its curved outer surfaces a wedge portion whereby that part of the optical axis of the system outside the vehicle is directed downwardly through a small angle, as described with reference to Fig. 6 (not shown). The eye mirror may be of the form shown in Fig, 12, wherein the cylindrical surfaces 72 and 73 of an elongated piece of transparent glass or plastic, are curved to like radii but about different parallel axes of generation. The surface 73 is coated so as to have about 50% reflectivity and then coated on the back and sides with black paint. The mirror is tiltable between the two positions shown, in a frame 75 by hinge means 77. When the surface 72 is in use it gives about 5% reflectance. The frame is adjustable on a bracket 81 by hinge means 79.
Patent GB-720632-A (GB)
Title: A process for producing coloured foils or threads of polyacrylonitrile
IPC: C08K5/00
Filed: 1952-07-28
Abstract: Foils and threads of polyacrylonitrile or a copolymer thereof with, for example, polyvinyl chloride or polyvinylidene chloride, are dyed by the ice colour process by incorporating the coupling component and the diazo component in the form of a triazene compound in a solution of the polymer, shaping the solution into foils or threads and then developing the dyestuff by the action of light, heat or an acid, or of a combination thereof employed either simultaneously or in succession.  Development of the dye may be effected by diffused daylight, direct sunlight or ultra-violet radiation; by an inorganic acid or an acid salt thereof, e.g. hydrochloric, sulphuric, formic or citric acid, sodium bisulphate or aluminium sulphate, applied as a dilute, preferably an aqueous solution, of if the acid is volatile, as a vapour, preferably acid-laden steam; or by hot air, steam, a hot bath or passage over heated drums.  Specified coupling components are p-cresol, b -naphthol, 3-hydroxy - carbazole, 2 - hydroxy - naphthalene-3 - carboylaminobenzene, 2 - hydroxy - naphthalene-3 carboxylic acid amide, 2-hydroxynaphthalene-3-carboxylic acid dibutylamide, 2 - hydroxy - carbazole - 3 - carboxylic acid ethyl ester, 2-hydroxy-anthracene-3-carboyl-11 - amino - 21 - methylbenzene, 2 - hydroxynaphthalene - 6 - sulphonic acid n - butylamide, 1 - phenyl - 3 - methyl - 5 - pyrazolone, 1 - acetoacetylamino - 2 : 5 - dimethoxy - 4 - chlorobenzene, 1 - benzoyl - acetylamino - 4 - benzoylamino - 2 : 5 - dimethoxybenzene and bis-(4 : 41 - acetoacetylamino) - 3 : 31 - dimethyldiphenyl.  The triazenes are prepared by combining aromatic diazonium compounds free from water-soluble groups with aliphatic, cycloaliphatic, aromatic or heterocyclic compounds which contain either in the chain or at the nucleus a nitrogen atom carrying at least one hydrogen atom capable of being exchanged, e.g. diethylamine, sarcosine, methyltaurine, piperidine, 1-ethyl-aminobenzene-4-sulpho-2-carboxylic acid, proline, diethanolamine and methylglucamine.  Numerous examples are given in which the solvent for the polymer is dimethyl formamide.ALSO:Coloured threads and foils of polyacrylonitrile, or a copolymer thereof with, for example, polyvinyl chloride or polyvinylidene chloride, are produced by incorporating a diazo component in the form of a triazene compound and a coupling component (see Group IV (c)) in a solution of the polymer, shaping the solution into fibres or foils and then developing the dyestuff by the action of light, heat or an acid, or of a combination thereof employed either simultaneously or in succession.  Development of the dye may be effected by diffused daylight, direct sunlight or ultra-violet radiation; by an inorganic or organic acid or an acid salt thereof; or by hot air, steam, a hot bath or passage over heated drums.  In examples the solvent for the polymer is dimethyl formamide.
Patent GB-1345229-A (GB)
Title: Benzyloxyamines
Filed: 1971-06-04
Abstract: 1345229 O-Benzyloxyamines GYOGYSZERKUTATO INTEZET 4 June 1971 [14 Dec 1970] 19090/71 Heading C2C Compounds of Formula (I) (where R<SP>1</SP> is Me or Et, X is HO 2 OH) are prepared by reacting a hydroxy benzoic acid ester with formaldehyde and HC1 or HBr to give a compound (III) (where P is Cl or Br) reacting this with R<SP>2</SP>R<SP>3</SP>NOH to give a compound (IV) (where R<SP>2</SP> is H when R<SP>3</SP> is COOEt or R<SP>2</SP>R<SP>3</SP> is phthaloyl, isopropylidene or alphahydroxybenzylidene) and finally hydrolysing or hydrazinolysing (III). (I) are specific (histidine)- and non-specific (DOPA)-decarboxylase inhibitors.
Patent GB-221618-A (GB)
Title: Combined earthing switch, lightning arrester, lead in tube, and terminal block for wireless apparatus
IPC: H01H21/54
Filed: 1923-07-26
Abstract: 221,618. Brennan, E. A. July 26, 1923. Switches, without quick action. - An earthing-switch for wireless aerials is combined with a safety gap for lightning or static discharges, and with a leading-in tube. The switch-arm B is pivoted in lugs A centrally placed on an insulating base D, and may be thrown i n t o engagement either with clips J on an earthed plate K, or with clips M on a plate N. The aerial wire is attached to a. rod H which is enclosed in a lead-in tube I and is passed through a hole in the base D and screwed into the central lugs A, thus clamping the tube I tightly against the back of the base D. The earthed plate K has a terminal L<1> of the screw or soldered type for the connection of the earth wire, and a socket terminal L for making connection to the earth terminal of the receiving- set. The plate N carries a socket terminal 0 for connection to the aerial terminal of the set. A plate C secured beneath the central lugs A forms with the earthed plate K a safety gap U for lightning or static discharge when the set is in use. One or both of the adjacent edges of the plates C, K may be serrated.