baber/WOPTO huggingface dataset:
Patent GB-1149010-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J23/027
Filed: 1966-09-20
Abstract: 1,149,010. Discharge tubes. SIEMENS A.G. 20 Sept., 1966 [21 Sept., 1965], No. 41921/66. Heading H1D. The collector 1 of a discharge tube, e.g. a klystron or travelling wave tube, is of rotationally symmetric form, the contour of the generatrix of the inner surface being such as to ensure that, for a continuously diverging electron beam received therein, the power density incident upon the inner surface is substantially uniform over that surface. The collector is at least partially screened from the focusing field, to permit the beam to diverge under the action of space charge. A differential equation, involving both the D.C. power of the beam and its diverging profile, to be satisfied by the collector surface is given, and an approximate method for constructing a surface satisfying it is outlined.
Patent GB-968832-A (GB)
Title: Improvements in or relating to production of titanium dioxide
Inventor: GROVES JAMES DENNIS
IPC: C01F7/02
Filed: 1959-12-09
Abstract: <PICT:0968832/C1/1> In the vapour phase oxidation of a titanium halide in a fluidized bed of inert particles with a free-oxygen containing gas, at least one and preferably both reactants are separately preheated in a portion of the bed from which the other reactant is excluded, the heating being to a degree such that when the reactants come together they react immediately, the major portion of the TiO2 produced being discharged with the effluent gases.  As shown in Fig. 1, the oxygen and halide reactants are fed through a ceramic base block having recesses 6 in which the reactant fed therethrough becomes preheated by hot bed particles falling into the recess.  The reactant fed through tubes such as 4 is not preheated. Alternatively the upper surface of the ceramic block may be provided with annular walls which separate annular sets of orifices for the several reactants.  Preheating of both reactants occurs in the annular troughs so formed.  Similarly, one reactant may be fed into the bottom of the bed to become preheated thereby, whilst the other is fed laterally at a point higher up the reactor.  A further alternative is to feed both reactants laterally at different levels and fluidize the bed with a third gas which may be inert.  Preheating to the required degree, i.e. that the gases on mixing have a temperature of at least 800 DEG  C. and preferably 900-1200 DEG  C., may be effected by spacing the entry levels 1-12 inches. Specifications 761,770 and 919,019 are referred to.
Patent GB-1069117-A (GB)
Title: Imidazole derivatives
IPC: C07D233/90
Filed: 1964-08-06
Abstract: The invention comprises compounds of the formulae <FORM:1069117/C2/1> wherein R is the 21,31-o-isopropylidene-b -D-ribofuranosyl group and Ar is an unsubstituted or nitro-substituted aryl group.  The compounds of Formula I may be prepared by heating 5-amino - 4 - carbamoyl - 1 - (21,31 - o - isopropylidene-b -D-ribofuranosyl) imidazole with an aroyl isothiocyanate of the formula Ar.CO.NCS and the compounds of Formula II may be prepared by reacting a compound of Formula I with a methylating agent. 5 - Amino - 4 - carbamoyl - 1 - (21,31 - o - isopropylene - b  - D - ribofuranosyl) imidazole may be prepared by reacting 5-amino-4-carbamoyl-1-ribofuranosyl imidazole with acetone in the presence of a Lewis acid or by amination of methyl - 5 - amino - 1 - (21,31 - o - isopropylidene-b  - D - ribofuranosyl) imidazole - 4 - carboxylate.
Patent GB-1400048-A (GB)
Title: Vehicle suspensions
IPC: B60G11/20
Filed: 1972-09-12
Abstract: 1400048 Variable rate suspensions SOC ANON AUTOMOBILES CITROEN 12 Sept 1972 [27 Sept 1971] 42361/72 Heading B7D In a motor vehicle rear suspension, each wheel 1 is carried by a horizontal arm 2 secured to a hub rotatably mounted by bearings 5 on a stub shaft e at the end of a tubular transverse member 7 connected by resilient supports 12 to the vehicle body, a torsion spring 6 is connected to the hubs 3 and anchored to the central part of the transverse member 7, and rotation of the transverse member 7 is controlled by variable rate elastomeric springs 23 interposed between the body and arms 22 secured to the transverse member. The torsion spring 6 acts above to provide a constant roll stiffness, whereas the elastomeric springs 23 act in series with the torsion spring 6 during parallel deflections to provide progressively increasing stiffness under increasing load. Each elastomeric spring may be a paraboloid block or a stack of superposed rings. There may be a single arm 22 or more than two such arms, and each arm may extend in opposite directions from the transverse member 7 with variable rate springs arranged respectively above and below the arm at its opposite ends. There may be a series of elastomeric springs arranged to come successively into operation as suspension deflection increases to provide the variable rate. The resilient mountings 12 may permit free rotation of the transverse member 7 or, as shown, they comprise elastomeric sleeves 13 bonded to sleeves 14, 15 secured respectively to the transverse member 7 and to the body.
Patent GB-1183278-A (GB)
Title: Improvements in or relating to Mesh-Type Cathodes for Electric Discharge Tubes
IPC: H01J1/18
Filed: 1968-09-06
Abstract: 1,183,278. Thermionic-cathode tubes. SIEMENS A.G. 6 Sept., 1968 [8 Sept., 1967], No. 42469/68. Heading H1D. In a mesh-type cathode comprising a tubular mesh-grid of cathode wire 1 which is attached at one end to an annular heater conductor 3 and at the other end, through a cap 4 having regularly disposed sprung arms, to a coaxial support pillar 5 forming the second heater conductor, the cap 4 is formed of a number of star-washers 6, see Fig. 5, superposed one upon another with their arms staggered, Fig. 4 (not shown). The ends of the arms 7 may be bent up at right-angles at the edge of the cup 4 where they are of such width that they just fail to overlap one another, and preferably the total number of arms in the cap is equal to the number of points of intersection of the cathode wires around the periphery of the mesh-grid. A part washer (10), Fig. 7 (not shown), may be used to make up the number of arms required. Adjacent star-washers may be separated from each other by a plain washer. In the mesh cathode at all the points of intersection the pairs of wires may be welded together.
Patent GB-970938-A (GB)
Title: Automatic telecommunication exchange systems
Inventor: BRAY FREDERICK HARRY
IPC: H04Q3/42
Filed: 1960-12-12
Abstract: 970,938. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 12,1960, No. 42659/60. Drawings to Specification. Heading G4H. [Also in Divisions H3 and H4] A pulse on any one of 10,000 lines causes the setting of four magnetic cores the combination of which is particular to the line, turn-over of the cores giving signals indicating the four decimal digits characterizing the line. Each line may have four cores to itself, the output wires of the cores indicating the thousands, hundreds, tens, and units digits, respectively; this arrangement using 40,000 cores. In the preferred arrangement, however, the lines are arranged in groups of ten each line of the group having its own units core which it shares with the corresponding line of a second group. Each group of ten lines is threaded in common through three cores the output wires of which indicate the common thousands, hundreds, and tens units of the group. The preferred arrangement requires 8,000 cores. Specification 957,198 is referred to.
Patent GB-1447928-A (GB)
Title: Purification installation for the liquid metal cooling the core of a fst-neutron nuclear rector
IPC: G21C1/03
Filed: 1974-10-02
Abstract: 1447928 Cooling reactors COMMISSARIAT A L'ENERGIE ATOMIQUE 2 Oct 1974 [3 Oct 1973] 42767/74 Heading G6C A fast-neutron reactor core 1, Fig. 1, is cooled by liquid sodium 9 in a vessel 4 and impurities in the coolant are removed by a purifier 11 comprising a cold trap immersed completely within the vessel. Details, Fig. 2.-In an embodiment a motorpump 13 sends the liquid sodium through cooling tubes 25 and pipe 28 to a chamber 24a from whence it flows via orifices, e.g. 36 to a cold trap 29 which incorporates a stainless steel wool filter cartridge 30, the purified sodium issuing from pipe 41. A cooling coil 38 is added. Plug 14 is removable whereby the filter may be readily replaced. In another embodiment the pump is not provided, the normal dynamic movement of the sodium being utilized, Fig. 3 (not shown).
Patent GB-1122930-A (GB)
Title: Improvements in or relating to synchromesh gearboxes
IPC: F16H47/06
Filed: 1966-09-27
Abstract: 1,122,930. Variable-speed gearing. SOC. ANON. ANDRE CITROEN. 27 Sept., 1966 [15 Oct., 1965], No. 43095/66. Heading F2D. Synchronized reverse and first forward speed are obtained in a synchromesh gear-box by right and leftward movement respectively of a sliding synchronizing clutch hub 15 by fork 18 on rail 19a, to selectively clutch gear 14, in mesh with a reverse idler 16 which is also in mesh with input gear 5 fast on input shaft 4, or gear 13, in mesh with gear 6, to the output shaft 10. Synchronized second and third speeds are obtained by selectively clutching gears 7 or 8 respectively to shaft 4 by means of sliding synchronizing clutch hub 9 slid by fork 17 on rail 19. The gear is driven through a torque converter 1, 2 and a separating clutch 3.
Patent GB-1276023-A (GB)
Title: Biaxially stretched film from polypropylene or copolymers or mixtures of polypropylene and polyethylene and process for the manufacture thereof
IPC: B29C55/00
Filed: 1969-08-29
Abstract: 1276023 Coated polypropylene film KALLE AG 29 Aug 1969 [30 Aug 1968 21 July 1969] 43206/69 Heading B2E [Also in Division B5] A biaxially stretched film from polypropylene, especially isotactic polypropylene, or from a copolymer or mixture of 99 to 90% by weight of polypropylene and 1 to 10% by weight of polyethylene, the polypropylene having a density of 0.90 to 0.92 g/cc a crystallinity of 40 to 70% and a crystallite melting point of 160 to 165‹C, which film has been stretched in the transverse direction by tentering and is characterised by the properties of (a) the modulus of elasticity being greater than 220kg/mm<SP>2</SP> in any direction in the film plane, (b) the ratio of the modulus of elasticity in the longitudinal direction to that in the transverse direction being in the range from 0.75 to 1.25, (c) the tensile strength being above 20 kg/mm<SP>2</SP> in any direction of the film plane, (d) the ratio of the tensile strength in the longitudinal direction to that in the transverse direction being in the ratio from 0.85 to 1.15, (e) the tensile elongation at break being below 80% in any direction of the film plane, and (f) shrinkage being not more than 10% in any direction of the film plane may be prepared by the following steps in sequence: (a) the polymer film is extruded at 200‹ to 300‹C, (b) the extrudate is cooled to a temperature of 15‹ to 80‹C, (c) the film is heated to 40‹ to 10‹C below the crystallite melting point, (d) longitudinal stretching is performed within this temperature range at a draw ratio of 6:1 to 8:1, (e) the film is cooled to 100‹ to 10‹C below the crystallite melting point, (f) the film is heated to 5‹ to 20‹C above the temperature for longitudinal stretching, (g) transverse stretching by tentering is performed in this temperature range at a draw ratio of 6:1 to 8:1, (h) the film is thermofixed under tension at a temperature in the range from 35‹C below the crystallite melting point to the crystallite melting point, the width being allowed to decrease during thermofixation by 2 to 10% and (i) the film is cooled to below 50‹C. The films may have a deviation from the planar condition of less than 0.10%. The thin substantially non-shrinking film produced may be used as produced or coated on one or both sides with for example polyvinylidene chloride for films with oxygen impermeability, polyvinyl chloride/polyvinyl acetate copolymer or thermoplast as for example polyethylene for heat sealable films.
Patent GB-968857-A (GB)
Title: Process for polymerizing acetaldehyde
IPC: C08G2/12
Filed: 1960-12-16
Abstract: Acetaldehyde is polymerized at -120 to -20 DEG C. in the presence of a non-basic solid contact catalyst together with a catalyst activator. The solid catalyst may be an inorganic oxide, e.g. aluminium oxide or silica gel or polytrioxane, polyacetaldehyde, polypropylene, polystyrene or an artificial zeolite.  The catalyst activator may be a Lewis acid, a complex compound of a Lewis acid or a salt-like compound, e.g. an oxonium or an aryl-diazonium salt, of a Lewis acid. Examples of activators are boron trifluoride, antimony pentachloride, tin tetrachloride, boron trifluoride diethyl etherate, trifluoroacetic acid, ortho-phosphoric acid and the addition compound of boron trifluoride with ortho-phosphoric acid.  A solvent e.g. an aliphatic, cycloaliphatic or araliphatic hydrocarbon may be present.
Patent GB-1410034-A (GB)
Title: Variable height hospital or the like beds
IPC: A61G7/005
Filed: 1972-09-20
Abstract: 1410034 Adjustable beds H S WRIGHT 20 Sept 1972 [9 Nov 1971] 43548/72 Heading A4J A hospital bed comprises a mattress frame 7 supported on a wheeled bogie 1 by a sub-frame comprising a pivoted X-linkage 6, 8 which is operable by a hydraulic pump 2 and control linkage 4 to vary the height of the mattress frame 7, and includes means for additionally tilting the mattress frame 7, the tilting means comprising a member 17 pivoted intermediate its ends to the X-linkage 6, 8 and slidably connected at its upper end to the mattress frame 7. The sliding connection comprises a plate 33 carried by the tilting member 17 and having a protruding edge slidably engaged in a slot 35 in a bracket 34 fixed to the mattress frame 7. The lower ends of a pair of parallel tilting members 7 carry between them a shaft 22 provided with a pair of pinions 23, 24 each engaged with an associated arcuate rack 20 fixed to the bogie 1. A further pinion 25 on the shaft 25 has teeth engaged in holes 29 in a pair of spring strips 27, 28 to lock the members 17 against rotation. When it is desired to adjust the inclination a cam 30 is rotated by an operating cable 31 and pull ring 32 to move the strips 27, 28 apart to free the member 17 for pivoting. The mattress frame 7 supports a back-rest section 16 pivoted to the frame 7, at 6a, and seat 14 and leg support 14, 15 sections pivoted together, at 13a. A contour control link 9 is pivoted to the sections 14, 15 at 13a and has a lower end 39 which may slide freely between plates 37 secured to an end of one member 8 of the X-linkage when the bed contour is not to be adjusted. The plates 37 carry a pin 38 which may be engaged in a notch 40 in the link 9 when it is desired to adjust the bed contour. The link 9 may be pivoted against a spring-bias to a position for engaging the pin 38 by displacement of a control rod 43 carrying a pin for engaging the link 9.
Patent GB-982964-A (GB)
Title: Granular herbicidal composition and method
Inventor: RENNER VICTOR ALBERT
IPC: A01N25/26
Filed: 1962-11-19
Abstract: A free-flowing, substantially dust-free granular herbicidal composition comprises a silicateous carrier such as particulate or expanded vermiculite perlite or expanded perlite, substantially all the particles of which are at least 150 microns in diameter and are capable of adsorbing a sticking agent, a sticking agent and a herbicide which is insoluble and non-emulsifiable in the sticking agent, said herbicide being retained on the carrier by a film of adsorbed sticking agent, and if desired also a surface-active agent. Specified sticking agents are ethylene, propylene, dipropylene, triethylene and hexylene glycols; 2,2-diethyl-1,3-propanediol; 2 - ethyl - 2 - butyl - 1,3 - propanediol; 1,5 - pentanediol; 2 - ethyl - 1,3 - hexanediol; polyethylene and polypropylene glycols; "Cellosolve" (Registered Trade Mark); carbitols; methoxy and ethoxytriglycol and diisobutyl ketone.  Specified herbicides are those of the formula <FORM:0982964/A5-A6/1> where R is methyl, ethyl, propyl, allyl or butyl and salts thereof; diphenyl acetonitrile; dimethyltetrachloroterephthalate; 2 - chloro-4,6-bis - (ethylamino)- and 2 - chloro - 4 - ethylamino - 6 - isopropylamino - s - triazine; 3-amino - 1,2,4 - triazole; sodium - 2,2 - dichloropropionate; dimethyl arsinic acid; 2-methoxy-3,6-dichlorobenzoic acid and salts and esters thereof and 1-n-butyl-3-(3,4-dichlorophenyl)-1-methyl urea. Specified surface-active agents are alkyl aryl sulfonates, polyether alcohols, sulphated alkyl esters, sodium lauryl sulphate, substituted amides of alkyl phosphates, substituted oxazolines, lauric acid diethanolamide and quaternary ammonium compounds. Optional ingredients are dyes.
Patent GB-1214257-A (GB)
Title: New luminescent compounds of the class of phosphates activated by terbium
Inventor: DENIS JEAN-PIERRE
IPC: C09K11/81
Filed: 1969-09-04
Abstract: 1,214,257. Luminescent materials and uses thereof. AGENCE NATIONALE DE VALORIZATION DE LA RECHERCHE. 4 Sept., 1969 [26 Sept., 1968, No. 43782/69. Heading C4S. A green emitting phosphor is of the general formula in which a, b ,c, d, # and x are <1, a + b + c + d = x < 1-#, a + 2b + 3c + 4d = 3x, a, b, c and d independently have minimum values of zero, # is 0.001 to 0.300 e.g. 0À01 to 0.10; Me<SP>+</SP> is a monovalent ion e.g. Na, K; Me<SP>++</SP> is a divalent ion e.g. Ca, Sr, Ba, Mg; Me<SP>+++</SP> is a trivalent ion e.g. La, Gd, Bi and tetravalent ion Me<SP>++++</SP> may for instance be Th or Zr. General formulµ Ce (1-#) Tb # PO 4  and Ce( 1-#-c )- Tb # Me c <SP>+++</SP>PO 4  are instanced. The phosphate exhibits the monoclinic structure characteristic of monazite. Detailed methods of preparation are given, e.g. by calcining at at least 50 to 800 C. with ammonium phosphote, a mixture of compounds of one or more oxides and/or one or more volatile anion containing salts. The mixture may include one or more oxalates and the phosphate anion can also be introduced as phosphoric anhydride or phosphoric acid. Alternatively precipitation of the phosphate may be effected by adding a concentrated warm solution of ammonium phosphate or alkali metal phosphate to a solution of chlorides or nitrates. Co-precipitation by saturated oxalic acid additions followed by calcination is also described. Specific examples disclosed are Ce 0 . 94 Tb 0 . 06 P0 4 ; Ce (1-#) Tb # PO 4  with  #  = 0.005, 0.01, 0.02, 0.03, 0À04, 0.05, 0À06, 0À08, 0À10; Ce 0 . 95 Tb 0 . 05 PO 4 , Ce 0.96 Tb 0.04 P0 4 : Ca 0.46 Th 0.46 - Ce 0.04 Tb 0.4 P0 4  and a number of examples including also lanthanum. Uses in T.V. screens (colour), c.r.t. devices and radiation detectors is disclosed. Reference is made to use in or with other constituents e.g. binders, protective coatings or casings which permit passage of incident or emitted radiations, supporting films, sheets and metallic deposits, plates, grids and wires.
Patent GB-1394311-A (GB)
Title: Microwave oven
IPC: G04F3/06
Filed: 1973-09-18
Abstract: 1394311 Magnetron energized heating systems LITTON INDUSTRIES Inc 18 Sept 1973 [7 Dec 1972] 43848/73 Heading H2H A microwave oven is provided with a microwave generating means which is selectively controlled to operate in one or other of two modes, the first of which is an intermittent operation employed for defrosting frozen items and the other is a continuous operation used for cooking the items. A microwave generating system 11 for an oven is supplied from an A.C. source 17 over conductors 13, 15 between which are connected three parallel branch circuits 19, 21, 23. Branch 23 contains a timer motor 37 driving a cam 38 which operates a switch 27 in the branch 19. Branch 19 also includes a start switch 25 and a relay 33 having a self-holding contact 31 and a contact 35 in conductor 13 which forms the main switch for the control circuit. Branch 21 of the circuit includes a motor 39 driving an equally divided cam 40 which, in operation, intermittently opens and closes a switch 41, the branch 21 also including a switch 43 having two positions, a so-called "defrost position" as shown and a lower position for continuous cooking operation. In operation the timer motor 39 is set to a time suitable for defrosting so moving the cam 38 that the switch 27 closes. The start switch 25 is depressed whereupon relay 33 energizes and is held on by closure of contact 31 and also closes the main switch 35. The "defrost" motor 39 now runs to open and close switch 41 causing intermittent energization of the generating system 11 so as to intermittently energize the oven and defrost the food therein. When cooking of the food is required the switch 43 is placed in its cooking or lower position thereby by-passing the switch 41 to cause continuous energization of the generating system 11 and hence of the oven. In other embodiments the connection to the left hand side of motor 37 may be connected to the junction of switches 35, 41, 43 and a single motor may drive the cams shown in Fig. 1 together with an extra cam which operates the switch 43.
Patent GB-1376432-A (GB)
Title: 12-heteropolyphosphates
IPC: C01B25/00
Filed: 1971-09-14
Abstract: 1376432 12-Heteropolyphosphates MUKEX Ltd 14 Sept 1971 [14 Sept 1970] 43853/70 Heading C1A [Also in Division C2] 12-Heteropolyphosphates having the general formula: Z n H m (PMo a W b V c O 40 ).xH 2 O in which Z represents an alkali metal and/or ammonium ion, and a, b, c, m, n and x are integers such that, 0#a#12, 0#b#12, 7#c#6, a+b+c= 12, n+m=75-6(a+b)-5c, are prepared by reacting (i) an alkali metal phosphate or orthophosphoric acid with molybdic oxide, molybdic acid, tungstic acid, tungstic oxide, vanadium pentoxide and/or sodium metavanadate in an aqueous medium and then (ii) adding an alkali metal and/or ammonium hydroxide until a clear liquor is obtained and then (iii) adding a mineral acid to give a pH of less than 1, the temperature being maintained at above 70‹ C. The alkali metal phosphate may be disodium hydrogen phosphate preferably prepared in situ from orthophosphoric acid and sodium hydroxide. The soluble heteropolyphosphate salts may be converted into a salt of a metal other than that of an alkali-metal.