baber/WOPTO huggingface dataset:
Patent GB-1395189-A (GB)
Title: Transmissions
IPC: B60W10/04
Filed: 1972-08-02
Abstract: 1395189 Fluid-pressure servomotor systems SPERRY-RAND CORP 2 Aug 1972 [22 Sept 1971] 36079/72 Heading G3P [Also in Division F2]  In a hydrostatic transmission wherein a variable displacement pump 12 is in closed circuit with a fixed or variable displacement motor 14 and the pump displacement is varied by differential area servopistons 20, 22 respectively connected to the high pressure circuit line 16 (or 18) and a pilot valve 44, the pilot valve 44 is controlled by pressures developed at the intermediate points 66, 84 of two bleed circuits from the high pressure line 16 which form a bridge circuit. The first bleed circuit constitutes a command circuit and has fixed and variable restrictors 58, 62. The pressure intermediate the restrictors is applied through a reversing valve 68 to one end 52 (or 50) of the pilot valve 44. The second bleed circuit constitutes a feedback circuit and has two variable lamina flow restrictors formed by a plunger 76 (or 78) within a cylinder 74. The pressure at a point 84 intermediate the restrictors is applied to the other end 50 (or 52) of the pilot valve 44. The plungers 76, 78 are connected by a linkage 80 to the pump displacement control member so that the lamina flow restrictors are varied equally and oppositely in response to variations in pump displacement. The pressure at 84 is thus proportional to input torque and acts on the pilot valve 44 to maintain the input torque constant for a predetermined setting of the command circuit. The command circuit variable restrictor 62 is adjusted by manually controlled lever 88 which additionally controls the throttle setting of an engine 10 driving the transmission. Varying the restrictor 62 varies the command signal 66 applied to the pilot valve 44 and thus varies the input torque to the transmission. For reverse operation of the transmission the reversing valve 68 is changed over to apply the command signal 66 to the opposite end 50 of the pilot valve 44 and the plunger 78 becomes operative to provide the feedback signal to the end 52 of the pilot valve. As shown the motor displacement 14 is varied by differential area servopistons 30, 32 respectively connected to the high pressure circuit line 16 or 18 and a pilot valve 40. The pilot valve 40 is controlled by the command circuit pressure which acts on the pilot valve 40 in opposition to the,working circuit high pressure.
Patent GB-884582-A (GB)
Title: Process for the dyeing and printing of fibrous materials and films
IPC: C09B26/06
Filed: 1958-11-11
Abstract: Fibres, threads, fabrics and films of polymers or copolymers of acrylonitrile are dyed or printed with a colour salt the cation of which contains no sulpho or carboxyl groups and has the formula <FORM:0884582/IV (c)/1> wherein Y1 and Y2 each represent hydrogen or alkyl, carbalkoxy or mononuclear aryl radicals and X1 and X2 each represent the divalent radical necessary to complete a heterocyclic nucleus containing 5 to 6 atoms in the heterocyclic ring.  The anions of the colour salt may be derived from, for example, halogen hydracids, sulphuric acid, sulphuric acid monoalkyl esters, perchloric acid, oxalic acid, lactic acid, benzene-or toluene-sulphonic acid or the double salt of the dyestuff chloride with zinc chloride.  X1 and X2 may be hydrocarbon radicals or hetero groups or groups made up entirely of hetero atoms such as nitrogen, oxygen or sulphur, to yield such heterocyclic nuclei as isopyrrole, pyridine, quinoline, thiazole, oxazole, imidazole, triazole, tetrazole, and thiadiazole rings, and these heterocyclic rings may be condensed with other rings to yield benzimidazole, indazole, benzoxazole, benzthiazole and naphthothiazole rings.  Dyeing is preferably effected in a weakly acid, neutral or weakly alkaline bath at the boil, possibly under pressure, if desired, in the presence of levelling agents, retarders, wetting agents or carriers such as benzoic acid, o-phenylphenol, salicylic acid methyl ester, b -cyanoethyl-formamide or -benzamide, organic polysulphonic acids and fatty alcohol polyglycol ethers.  The dyestuffs may be prepared by coupling a heterocyclic amine of the formula <FORM:0884582/IV (c)/2> with the diazonium compound of an identical or different heterocyclic amine and then quaternising, or by coupling a diazonium compound of the amine (II) with an imino compound of the formula <FORM:0884582/IV (c)/3> and then quaternising, or by condensing the amine (II) with a nitroso imine, obtained by treating the imine (III) with nitrous acid, and then quaternising.  The examples specify lists of components from which the dyestuffs are made.
Patent GB-512387-A (GB)
Title: Improvements in or relating to process of reclaiming waste sands
IPC: C09K3/14
Filed: 1938-12-15
Abstract: 512,387. Glass manufacture. GARBISCH, N. S. Dec. 15, 1938, No. 36603. Convention date, Dec. 16, 1937. [Class 56] Relates to a method of utilising the finelydivided mixture of pulverised sand and glass which results, as a waste product, from the grinding of plate glass. According to the invention, the mixture is sintered to form agglomerates which are mixed subsequently with other glassforming ingredients and melted to form glass. In some cases, the agglomerate may be ground to obtain a material of uniform grain size, or it may be moulded into briquettes while still plastic, or the sintered mass while still hot may be fed with other ingredients into a glassmelting furnace.
Patent GB-1414352-A (GB)
Title: Mounting devices for tubes or like elongate elements
IPC: F16L3/10
Filed: 1973-08-01
Abstract: 1414352 Clip, clamp and stud fastenings CATERPILLAR TRACTOR CO 1 Aug 1973 [21 Aug 1972] 36617/73 Heading E2B [Also in Division A4] A mounting device for an elongate element 16, e.g. a tube, comprises two similar parts 12, 12' having respective curved portions 14, 14' together defining an annular portion to receive the element 16, the portions 14, 14' being interconnectible at one end by respective dovetail projections 24, 24' on one of the portions 14, 14' engaged in complementary recesses in the other portion, the ends of the portions 14, 14' opposite those with the projections 24, 24' having respective tabs 18, 18' through which are passed screws 20, 22 to secure the tabs 18, 18' to each other and to a fixed support 28.
Patent GB-991848-A (GB)
Title: Device for monitoring the operation of a dust separator
IPC: F27B7/42
Filed: 1963-09-18
Abstract: 991,848. Preheating and charging cement raw materials. KLOCKNER - HUMBOLDT - DEUTZ A.G. Sept. 18, 1963 [Oct. 18, 1962], No. 36744/63. Heading F4B. [Also in Division B2] A number of series-connected cyclones 26, 27, 28, 29 forming part of a heat-exchanger for heating powdered cement raw material are connected via hot gas discharge conduit 31 to a rotary kiln 30. The hot gases discharged from the kiln pass successively through the cyclones and are withdrawn through an electrostatic dust separator by means of a fan 35. The raw material is fed at 37 into the stream of gas flowing through conduit 34 and is entrained thereby into cyclone 29 where it is separated. The material is then successively fed to conduits 33, 32, 31 and separated in cyclones 28, 27, 26, thereby becoming heated and finally enters the kiln 30 via a pipe 39<SP>1</SP> together with separated dust from the separator 36. For monitoring their operation, the cyclones and the separator are provided ontheir solids discharge outlets with pipe extensions 40-44 connected to pressure or vacuum gauges 45-49 (see Division B2) which are in turn connected to a warning installation 56 consisting of acoustic and optical signalling devices and preferably mounted at the kiln control station with other indicating instruments. In operation, should blockage occur in the vicinity of the dust discharge outlets of any one cyclone or separator this is detected by the pressure gauge and transmitted to the warning installation 56 so that the cyclone or separator involved may have the blockage removed.
Patent GB-849052-A (GB)
Title: Apparatus for testing electric cable insulation
Inventor: GOODING FRANCIS HERBERT
IPC: G01R31/02
Filed: 1958-11-17
Abstract: 849,052. Testing cable insulation. OKONITE CO. Nov. 17, 1958, No. 36886/58. Class 37 A continuous process for testing the insulation of a cable comprises surrounding the cable by a semi-conducting layer, earthing the cable conductor and passing it through a tank of insulating fluid a high voltage being applied between earth and the semi-conducting layer and the ionization characteristics of the insulation being continuously observed. The Figure shows a process for continuously testing the insulation of the cable 14 wound off from a drum 16 on to a drum 18 and passing through a bath 2 containing an insulating fluid, for example, oil. The cable insulation is wrapped with a semiconducting layer, for example semi-conducting tape of'cotton fabric coated and impregnated with a neoprene compound or a mixture of rubber and carbon particles, and a high voltage supply derived from a transformer 22 is applied between the earthed conductor of the cable and a series of contacters 6, 8, 12, the ones 6, 8 at the end of the bath being earthed and the contacters 12 constituting a high voltage electrode. The ionisation characteristics of the insulation is continuously observed by means of a radio receiver 36 the output of which is recorded on a recording galvanometer 42. The regulator 28 of the high voltage transformer 22 is set slightly higher than the operating voltage of the cable so that a dielectric stress is applied as the cable passes through the tank reaching its maximum at electrodes 12, any variation in the stress caused by sudden ionization or breakdown of a volt in the insulation is indicated on galvanometer 42. In the modification Fig. 2 (not shown) the cable is passed through a tube of semiconducting material, for example a plastic tube impregnated with carbon particles, which is located along the length of the tank and to which a conducting electrode is attached fed from the high voltage source.
Patent GB-874395-A (GB)
Title: Improvements in tubular elements for heat exchangers
IPC: F28F13/06
Filed: 1957-11-26
Abstract: 874,395. Tubular heat exchangers. HUET, A. Nov. 26, 1957 [Nov. 27, 1956], No. 36913/57. Class 64(3) [Also in Group XL(a)] A heat exchanger comprises a tubular element which may contain nuclear fuel and which comprises a number of conjoined tube sections k, l, m, nformed with external fins o, p, q, r providing additional heat exchange surface which is constant throughout each individual section but which differs from one section to the next. corrugated fluid deflecting surfaces c, c<SP>1</SP> being situated concentrically to the tube as shown'for example in Figs. 4 and 5, to improve the rate of heat transfer between the tube and the external fluid F flowing thereover. Specification 825,996 is referred. to.
Patent GB-916861-A (GB)
Title: Improvements to stenters and the like
IPC: D06C3/02
Filed: 1961-10-16
Abstract: 916,861. Tentering-machines. LEIMER, A., [trading as ERHARDT & LEIMER oHG.]. Oct. 16, 1961 [Dec. 17, 1960], No. 36971/61. Class 42 (1). In a tentering machine the take-in members are adjustable by a device comprising at least two gear-wheels 9, 11 coupled together and provided between a motor 5 on the warp guide rail 1 on which the pin-blocks or clips 2 slide and a toothed bar 12 secured to the machine frame, the gears 9, 11 being rotatably mounted on a lever 13 mounted to pivot about the motor shaft 6 and a spring 14 being provided to hold the lever 13 and therefore the gear 11 in engagement with the toothed bar 12. The gears 9, 11 are coupled together either by a third gear 10 or by an endless belt, not shown. The toothed bar 12 is secured to a rail 8 on which the rail 1 is movably mounted by rollers 7 so that rotation of the shaft 6 causes the guide rail 1 to pivot about an axis 3.
Patent GB-1405017-A (GB)
Title: Apparatus for automatically signalling an incoming call at an engaged telephone
IPC: H04Q3/00
Filed: 1972-08-08
Abstract: 1405017 Automatic exchange systems I MONLEONE 8 Aug 1972 [12 Aug 1971] 36995/72 Heading H4K In a telephone system of a type in which centralized equipment includes for each subscriber a separate stepping switch stepped by dial signal from that subscriber to select a path to a wanted subscriber, and in series with said stepping switch a resistor and the coil of a relay which when the switch is taken in use for a call closes a contact in parallel with the resistor to increase the line current after selection to a level at which a relay associated with the called subscriber responds completing the power supply path and isolating the line, additional equipment is included to allow a third party to indicate by an audio or visual signal at a busy station that that party is required for another connection. The figure shows parts of the equipment associated with three subscribers numbered 1 to 3 and to which the digits in the reference characters refer. Each substation is associated with three ganged stepping switches such as C1 the three switches for each substation being connected to the speech pair and a third wire respectively, the third wire arrangement for substations 1 and 3 only being shown. If substation 1 has dialled substation 2 then the stepping switch C1 engages contact 2 and the third wire of substation 1 including resistance R1 relay winding E1 and thermal relay winding ET1 is connected to terminal 2 and thus via a relay winding T2 to negative battery. Relay E1 responds closing contact C1 on terminals A1 and B1 shorting resistor R1 and thus increasing the current through relay T2 which responds. The relay T2 is permanently associated with station 2 and disconnects that station line pair from its stepping switches and its power supply. The other two stepping switches (not shown) of station 1 are stepped with C1 and are at this time connected with a transmission pair permanently associated with station 2 and supply power to it. If station 3 now dials station 2 the stepping switch C3 also advances to terminal 2 but relay E3 cannot respond. The current through it however is sufficient to energize a low voltage relay S1 which opens contact not shown bridging a resistor in the speech pair of every substation. This results in an intermediate line potential at substation 2 which actuates a visual indicator at the substation. In a modification a thermal switch in series with S1 repeatedly operates to produce an audible signal in the substation 2. Thermal relays such as ET1 open contacts et1 to prevent false signals to third parties.
Patent GB-765779-A (GB)
Title: Process for improving the properties of mineral lubricating oils, particularly by increasing their spreading pressure on solid surfaces
Inventor: CLAYFIELD ERIC JOHN
IPC: C10M177/00
Filed: 1954-12-23
Abstract: Up to 50 parts per million by weight of copper, iron, cobalt or manganese, either in elemental form or in the form of an oxide, hydroxide, carbonate bicarbonate, hydroxy-carbonate or oil-soluble compound, are added to mineral lubricating oil and subsequently, but before using the oil as a lubricant, the oil is heated in the liquid phase at a temperature above 60 DEG C.  The treatment improves the properties of the oil and, in particular, increases its spreading pressure on solid surfaces.  After the treatment, the oil may be filtered or otherwise clarified, if necessary. Suitable oil-soluble compounds are (a) soaps or salts of naphthenic acids, naphthosulphonic acids, fatty acids (e.g. stearic, palmitic, oleic or hydroxystearic acid) or resin acids (e.g. abietic acid), (b) salts of wool fat acids, acids produced by the oxidation of paraffin wax, alkylated aromatic carboxylic acids, alkylated aromatic sulphonic acids, or acid esters of sulphuric or phosphoric acids, (c) metal complexes of methylaminomethylene acetone (CH3.CO.-CH : CH.NH.CH3) or various like compounds or (d) dicyclopentadienyl iron and its alkyl substitution products, dicyclopentadienyl cobalt oleate or stearate and complexes of iron or cobalt carbonyls with unsaturated hydrocarbons, such as complexes of iron corbonyl with cyclopentadiene or di-isobutylene.  The mineral lubricating oil may have been previously refined by acid, earth or lime treatment or by solvent extraction after treatment according to the invention the oil may be blended with other mineral lubricating oils or with fatty oils such as castor oil and lard oil, or with synthetic lubricating oils or mixtures of synthetic lubricating oils and fatty oils.  Synthetic lubricating oils mentioned are polymerized olefins, alkylated aromatic hydrocarbons, esters (e.g di-2 - ethylhexyl sebacate or adipate, trioctyl or tricresyl phosphate and tetraoctyl silicate), polymers or copolymers of polyalkylene glycols and the esters and ethers thereof and polyorganosiloxanes.  The treated oil may also be blended with oxidation and bearing corrosion inhibitors, detergents, dispersants, pour point depressants, viscosity index improvers, antifoaming agents, rusting inhibitors, antiwear agents, extreme pressure additives and dyes.  In the examples, mineral lubricating oil is heated with copper, cobalt or manganese naphthenate, copper or iron stearate, cupric oxide, copper ethylaminomethylene acetone or dicyclopentodienyl iron. Specifications 764,183 is referred to.
Patent GB-1142728-A (GB)
Title: Improved thermionic cathodes for electron discharge devices
IPC: H01J1/22
Filed: 1966-08-19
Abstract: 1,142,728. Thermionic cathode constructions. VARIAN ASSOCIATES. 19 Aug., 1966 [23 Aug., 1965], No. 37325/66. Heading H1D. [Also in Division C7] A cathode assembly 14 comprises a thermionic cathode 15 mounted on a sleeve 18 surrounding a refractory metal heater wire 17 having a coating of minute refractory metal particles bonded to its surface to reduce its operating temperature. An oxide type cathode assembly 14 for use in a reflux type klystron comprises a Ni button 15 coated with a thermionic emissive material 16, mounted on a Ni sleeve 18 containing the W, Rh or Rh-W alloy heater wire 17. The wire is coated with W, Mo or Rh particles which increase the adhesion of a subsequent Al 2 O 3  coating. The wire may be in contact with or spaced from and supported in the tube. The particle layer can be applied either by dipping the bare wire in a suspension of W powder in xylene and methacrylate then firing in H 2  at 1500 C. or by cataphoretic deposition from a suspension of W powder in methanol with yttrium nitrate, Al(NO 3 ) 3  and water using an Al anode then firing in wet NH 3  at 1650 C. The fired heaters may be redipped in H 2 WO 4  and NH 4 OH and retired. The Al 2 O 3  coating may be cataphoretically or vapour deposited.
Patent GB-975562-A (GB)
Title: Vehicle direction indicator systems
Inventor: PARKES ERIC BERNARD
IPC: G08B5/36
Filed: 1960-11-02
Abstract: 975, 562. Vehicle direction indicator systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 26,1961 [Nov. 2, 1960], No. 37628/60. Heading G4Q. Such a system comprises in combination a flasher unit 1 adapted for connection at 2 to a source of supply, a manually operable three position switch 5 having a movable contact piece 4 connected to the flasher unit and movable from a neutral position in opposite directions into contact with a pair of fixed contacts 6 and 7 through which current can be supplied to direction indicator lamps 8 and 10, and 9 and 11 on opposite sides of the vehicle respectively, a pair of resistors 12,13 connected between the said fixed contact pieces and the rear direction indicator lamps 10, 12, a pair of normally closed switches 14, 15 coupled together for simultaneous operation and connected across the said pair of resistors, and a third normally closed switch 16 coupled to the said pair of switches for operation therewith and connected in series with a third resistor 17 across the flasher unit. The resistors are so chosen that when the coupled switches are opened and the three position switch is operated to illuminate the direction indicator lamps at one side of the vehicle, the rear direction indicator lamp will be dimmed without substantially changing the frequency of operation of the flasher unit. The third resistor is of sufficiently high resistance to prevent illumination of a direction indicator lamp by current flowing to the lamp through the third resistor.
Patent GB-960331-A (GB)
Title: Process for the preparation of imides
IPC: C07D211/88
Filed: 1962-10-08
Abstract: Dicarboxylic acid imides are prepared by the action of carbon monoxide at a raised temperature and pressure on a , b - or b -g -unsaturated carboxylic acid amides of the general formula R1C(O)NHR2, where R1 is an alkenyl, aralkenyl, cycloalkenyl or cycloalkenylalkyl group and R2 is hydrogen or an alkyl, aralkyl or aryl group, the reaction being effected in the presence of a cobalt carbonyl catalyst.  Specified amides which may be treated are acrylamide, methacrylamide, b -b -dimethylacrylamide, cyclohexene carboxylic acid amide, crotonamide, cyclohexene acetic acid amide, a ,a -dimethylvinyl acetic acid amide, cinnamic acid amide, N-methyl-, N-butyl-, N-isobutyl, N-hexyl- and N-lauryl-acrylamides, acrylic anilide, N-p-chlorophenyl-, N-benzyl and N-2, 6-dichlorophenyl-acrylamides and N-butyl- and N-benzyl-methacrylamides. The products are succinimide and substituted succinimides unless the starting material is a straight-chain carboxylic acid amide of more than 3 carbon atoms or a branched-chain carboxylic acid amide of more than 4 carbon atoms, in which event the products may be or may include glutarimides.  The reaction may be effected at above 50 DEG C., preferably 150 to 300 DEG C., under a pressure above 30 atm., preferably 150 to 340 atm., preferably is a solvent, e.g. benzene, toluene, acetone or methyl ethyl ketone.  The catalyst may be taken as such or formed in situ, e.g. from Raney cobalt or a cobalt salt such as the sulphate, acetate or naphthenate.  The preferred catalyst is dicobalt octacarbonyl, but cobalt hydrogen tetracarbonyl may also be used.  Examples are given in which (1) acrylamide yields succinimide, (2) N-methylacrylamide yields N-methylsuccinimide, (3) N-butylacrylamide yields N-butylsuccinimide, (4) N-isobutylacrylamide yields N-isobutylsuccinimide, (5) N-hexylacrylamide yields N-hexylsuccinimide, (6) N-laurylacrylamide yields N-laurylsuccinimide, (7) N-phenylacrylamide yields N-phenylsuccinimide, (8) N-benzylacrylamide yields N-benzylsuccinimide, (9) N-2,6-dichlorophenylacrylamide yields N-2,6-dichlorophenylsuccinimide, (10) methacrylamide yields a -methylsuccinimide, (11) N-butylmethacrylamide yields N-butyl-a -methylsuccinimide, (12) N-benzylmethacrylamide yields N-benzyl-a -methylsuccinimide, (13) crotonamide yields a -methylsuccinimide and glutarimide, (14) N-methylmethacrylamide yields N-methyl-a -methylsuccinimide, (15) N-p-chlorophenylacrylamide yields N-p-chlorophenylsuccinimide, (16) cyclohexene-1-carboxylic acid amide yields hexahydrophthalimide, (17) cyclohexene-1-acetic acid amide yields cyclohexane-1-carboxylic-2-acetic acid imide, (18) cinnamic acid amide yields a -phenylsuccinimide, (19) b -b -dimethylacrylamide yields b -methylglutarimide, (20) a ,a -dimethylvinylacetic acid amide yields a ,a -dimethylglutarimide. Of these products, N-2,6-dichlorophenylsuccinimide, N-butyl-a -methylsuccinimide and cyclohexane-1-carboxylic-2-acetic acid imide are claimed as new compounds.
Patent GB-1183266-A (GB)
Title: Protective Shield for use with Vehicle Registration Number Plates
Inventor: OLLETT DAVID HERBERT
IPC: G09F7/00
Filed: 1968-08-08
Abstract: 1,183,266. Shield for number-plates. D. H. OLLETT. 3 Sept., 1968 [8 Aug., 1968], No. 38016/68. Heading G5C. A flexible transparent shield adapted for fitting over a vehicle number-plate has a rear wall formed with an opening X through which the number plate may be inserted. As described, a ridge Z for forming a weather seal between the shield itself and the vehicle body (or other support surface) when the number plate is fastened to the latter is provided. Bolt threads protruding from the rear of the number plate are passed through holes H each surrounded by an annular sealing ridge S.