baber/WOPTO huggingface dataset:
Patent GB-1224292-A (GB)
Title: Liquid level switch
IPC: H01H36/02
Filed: 1969-09-22
Abstract: 1,224,292. Liquid level control. INTERNATIONAL STANDARD ELECTRIC CORP. Sept. 22, 1969 [Sept.27, 1968], No.46640/69. Heading G1H [Also in Division H1] In a device for initiating switching processes dependent upon the liquid level inside a measuring container 1 of insulating material and in communication with a liquid container, electrodes 3, serving to measure the liquid level and initiate switching operations such as the opening or closing of supply and drain valves, depend from a lid 2 which covers the container 1 and is provided with a tube 4 containing a reed switch 5 on the inside and a float 7, carrying a permanent magnet 6 arranged to move on the outside of the tube 4 with a change in liquid level so that when a maximum liquid level in the container 1 is reached the switch 5 is closed to actuate a drain pump and a warning signal.
Patent GB-1453009-A (GB)
IPC: A61K8/46
Filed: 1974-10-29
Abstract: 1453009 Mercaptocarboxylic acids AKZO NV 29 Oct 1974 [29 Oct 1973] 46673/74 Heading C2C Meroaptocarboxylic acids of the general formula HS-(CH 2 ) n -COOH in which n equals 1 or 2, are prepared by reacting aqueous solutions of acids of the general formula or their ammonium or sodium salts are reacted in homogeneous phase with hydrogen sulphide in the presence of aqueous ammonium hydroxide or sodium hydroxide in at least the stoichiometric quantity, followed by acidification to give the corresponding mercaptocarboxylic acid, the concentration of the chlorocarboxylic acid or its ammonium or sodium salt in water in the starting material reaction mixture being from 4À0 to 12 mols per cent and the reaction being carried out at a temperature of from 60 to 140 C. and under a hydrogen sulphide partial pressure of at least 2 atmospheres with mixing.
Patent GB-1441938-A (GB)
Title: Sprocket assembly
IPC: F41A9/01
Filed: 1973-10-05
Abstract: 1441938 Fuel mechanism sprockets GENERAL ELECTRIC CO 5 Oct 1973 [12 Oct 1972] 46711/73 Heading F3C A sprocket 16, for feeding ammunition to an automatic gun, has a plurality of teeth 18 each having a member 20 translatable thereon between a maximum radial position providing a minimum opening between such and an adjacent tooth, and a minimum radial position providing a maximum such opening. Each member 20 is spring biased by action on a transverse pin 34 through side walls of the member and in a curved slot in the respective tooth 18, to the maximum radial position, but can be held in the minimum position by a stepped pin 44 in the tooth spring biased outwardly so that a portion 48 engages an enlarged end of a slot in the member 20; retraction of the pin 44 allows outward member movement. Feet inwardly extending of the member side walls locate in curved grooves 22 of the respective tooth 18. Ammunition, constrained between guides 12, 14 approaches three such sprockets 16 and pushes inwardly a projecting member 20 which is then held by the pin 44, until the ammunition is fully located in the sprocket, whereby it retracts the pin to release the member to retain it. The projecting member 20 helps to push the ammunition during movement on from the sprocket. Upon reverse movement of the ammunition, due to feed stop, the action of the sprocket is reversed.
Patent GB-1285065-A (GB)
Title: Track indicating apparatus
IPC: B61L23/30
Filed: 1969-09-23
Abstract: 1285065 Vehicle detection SAAB-SCANIA AB 23 Sept 1969 [27 Sept 1968] 46798/69 Heading B7N Railway vehicles 3 travelling in either direction on track 1 are detected as entering and leaving track sections AB, BC &c., by track reed switches I, II, III, IV for each section which are actuated by magnets 7, 8 on each passing vehicle and control operation of a memory and indicating unit, e.g. 20 AB, associated with each section. With a section, e.g. AB, unoccupied, relays AII and BIV of associated memory unit 20 AB are picked up via track reed switches II and IV and memory relay 31 AB is held operated via a hold circuit so that indicating lamp 34 AB is not energized. A vehicle entering the section in the direction 5 operates reed switches I and II in succession by means of its magnet 7. The operation of the first switch has no effect but opening switch II releases relay AII momentarily, whereby the hold circuit to relay 31 AB opens, releasing the relay so that, lamp 34 AD is now energized indicating that the track section is occupied. On leaving the section, reed switches IV and III are operated in succession by magnet 8. The first of these has no effect but operation of switch III picks up relay BIII providing an energizing circuit for relay 31 AB which on pick up holds and also de-energizes lamp 34 AB. The configuration of magnets on the vehicles and reed switches on the track ensures that a section is signalled as occupied irrespective of the direction of entry of the vehicle.
Patent GB-950049-A (GB)
Title: Unit comprising a disengageable hydraulic coupling device
IPC: F16H47/06
Filed: 1962-12-12
Abstract: 950,049. Controlling clutches ; friction clutches; change-speed gear and clutch combinations. FRANCAISE DU FERODO. S.A. Dec. 12, 1962 [Dec. 12, 1961], No. 47000/62. Headings F2C, F2D and F2L. A ventilated casing, interposed between an engine and a manually controlled sliding gear change-speed gear-box, houses a rotary, oil filled enclosure comprising an hydraulic coupling device having an hydraulically operated friction clutch between the turbine and the gear-box drive shaft, an oil pump driven from the coupling impeller supplies a control unit mounted integrally with an oil tank on the side of the casing, the unit being sensitive to gear operating conditions to engage or disengage the clutch. A casing 20, interposed between the engine crankcase and the gearbox casing, houses an enclosure 22 driven from the engine crankshaft 12 and having rigid therewith the impeller 25 of an hydrodynamic torque converter with a reactor 31 and turbine 26. The turbine 26 is rigid with the driving plates 34, 36 of a friction clutch having a driven disc 38 connected to the driving shaft 30 of the change-speed gear. The plates 34, 36 form a cylinder and piston to engage the disc 38 under hydraulic pressure in the surrounding chamber 47 assisted by a Belleville spring 37, oil in chamber 47 being admitted at reduced pressure to interior chamber 43, connected by passage 45 to chamber 42, through one-way restriction valves 49. Clutch release is obtained by pressure passed to the chambers 43, 42 through a duct 63. A pump 50 driven by the impeller 25 draws oil from a tank 70 secured to the side of the casing 20 and passes the pressure oil to a solenoid operated valve 75 to engage or disengage the clutch under the control of a gear lever switch 79 and a gear-box neutral sensitive switch 80. A pressure relief valve 81 is in parallel across the pump delivery and a spring accumulator 83 ensures sufficient oil for clutch engagement at low pump speeds. A duet 65 returns spill oil from the end bearing 86 to the tank 70 and a non-return valve 85 maintains the casing 47 full on engagement of the clutch under spring pressure only as when tow starting. The duct 65 may alternatively be connected directly to the pump inlet. In a modification, the relief valve 81 has three control positions to first fill the accumulator, second to provide high pressure for clutch operation and thirdly to prevent excess pressure from the pump 50. In a further modification, the accumulator is omitted and the oil tank 70 has an upper chamber, open to atmosphere, receiving aerated spill oil from duct 65.
Patent GB-1437208-A (GB)
Title: Exchange amination process
IPC: A01N43/78
Filed: 1973-10-09
Abstract: 1437208 2-Hydrazino-benzothiazoles ELI LILLY & CO 9 Oct 1973 [10 Oct 1972] 47061/73 Heading C2C A process for the preparation of 2-hydrazinobenzothiazoles haying the formula wherein R is hydrogen, halogen, (C 1 -C 3 ) alkyl, alkoxy or alkylthio and n is 0, 1 or 2, comprises reacting a corresponding 2-aminobenzothiazole of the formula wherein R<SP>1</SP> is hydrogen or methyl, with hydrazine in the presence of at least a catalytic amount of acid. The reaction is preferably conducted in an inert solvent selected from (C 2 -C 4 )-alkylenediols; di- and tri-(ethylene and propylene) glycols; mono-(C 1 -C 4 -alkyl) ethers of mono-, di- and tri-(ethylene and propylene) glycols. triethanolamine, sulpholane and dimethylsulphoxide.
Patent GB-1194654-A (GB)
Title: Improved Chuck
IPC: B23B31/18
Filed: 1968-10-03
Abstract: 1,194,654. Chucks. N. A. WOODWORTH CO. 3 Oct., 1968 [17 Oct., 1967], No.47063/68. Heading B3B. A chuck having angled rocking arms 36 pivotable about front swivel 38 by an actuator 46 acting through rear swivels 48 to radially move jaws 44 has the centres of the front and rear swivels equidistant from the axis of the chuck so that the rocking arms 36 can be rotated through 180 degrees to enable the chuck to be used for internal or external gripping of workpieces. Spring detents locate the rocking arms in each of the two positions. An angled rear portion of each rocking arm is offset radially from the front portion to ensure the necessary geometry. The chuck is fixed to a spindle 24 by screws 30 and operated, e.g. hydraulically, by means of a draw bar attached to the actuator 46. The final clamping by the jaws 44 pulls a workpiece on to stops 118 on the front face of the chuck. The rear swivel 48 ball member 106 may have an eccentric bore 107 which slides along the angled rear portion of the rocking arm. The ball member 106 may also have tapering opposite faces 112, and key and keyway 114, 116 ensure that the clamping pressure acts through the widest edge for both positions of the rocking arms. A chuck adapter plate 20 may be formed with keys, keyways or driving lugs for a driving connection with the spindle 24.
Patent GB-1161757-A (GB)
Title: Flexible Screen Foils for Dry Shavers
IPC: B26B19/38
Filed: 1966-10-21
Abstract: 1,161,757. Dry shavers. BRAUN A.G. 21 Oct., 1966 [22 Oct., 1965], No. 47128/66. Heading B4B. A flexible screen foil for a dry shaver comprises a perforated area 22 in which a plurality of holes 26 are formed throughout the foil and are separated by webs 27 and which is surrounded by an unperforated margin 23, the holes in a central zone 22<SP>1</SP> of the area 22 being of substantially uniform size and spacing so that the webs in that zone are of uniform width, and the holes in a transition zone comprising marginal side and end areas 28, 29 surrounding the zone 22 being so dimensioned or spaced apart that the webs 27<SP>1</SP> between these holes are of increasing width from an inner boundary of the transition zone adjacent the zone 22 to an outer boundary of the transition zone adjacent the margin 23. As shown in Fig. 3, the spacing between the centres of adjacent holes is uniform throughout the transition zone and the size of the holes is decreased from the inner boundary to the outer boundary thereof. In two modifications, Figs. 4a and 4b (both not shown), the size of the holes is uniform throughout the area 22 and the spacing between the centres of adjacent holes in the transition zone increases from the inner boundary to the outer boundary thereof.
Patent GB-1492179-A (GB)
Title: Mechanical scanning arrangement
IPC: G02B26/10
Filed: 1974-10-31
Abstract: 1492179 Frequency detectors MULLARD Ltd 31 Oct 1974 [16 Nov 1973] 47184/74 Heading H3A [Also in Divisions G2 and G3] A frequency-to-voltage converter for determining the frequency of a pulse waveform comprises a capacitor C1 which is discharged through a transistor T1 on to a storage capacitor C3 by the leading edge of each pulse, and is re-charged at the trailing edge via a diode D2. The storage capacitor C3 is shunted by a resistor R4 so that its mean voltage represents the frequency. In the embodiment described, in which the input waveform is square, a complementary waveform is also available, and this is processed in an identical way by a second channel C2, T2 coupled to the same storage capacitor C3.
Patent GB-1187227-A (GB)
Title: Improvements in Bladed Rotors for Axial Flow Compressors, Turbines and the like
IPC: F01D5/30
Filed: 1967-10-17
Abstract: 1,187,227. Fixing turbine or compressor blades. GENERAL ELECTRIC CO. Oct.17, 1967 [Jan. 19, 1967], No.47186/67. Heading F1T. A rotor assembly for an axial-flow turbine or compressor comprises blades 5, Figs. 5 and 7, mounted in a circumferential groove 4 by means of roots 17 and having abutting platforms 12 which are seated in a groove 9 so as to be flush with the rotor surface, the blades being inserted into the groove 4 at a widened portion forming a slot 13. After all but two blades have been inserted into the groove 4 through the slot 13, a first locking blade 5a having a platform 12a with a cutaway postion 18a is inserted and moved to the position shown. A resilient locking member 20 is then inserted into the slot 13 as shown in Fig. 5 and, after being squeezed by a tool applied to tabs 23 so that its legs 22 are freed from the slot, it is moved circumferentially until it fits beneath the platform 12a as shown in Fig. 7. A second locking blade 5b is then inserted through the slot 13 with the cutaway position 18b of its platform adjacent the cutaway position 18a. All the blades and the locking member 20 are then moved circumferentially along the groove 4 until the locking member 20 is again within the slot 13. The engagement of legs 22 with shoulders 15 then retains the blades against circumferential movement. Since the tabs 23 protude through the cutaway portions 18a, 18b, they are accessible for disassembly. Fig. 10 shows another arrangement in which an S-shaped resilient locking member 20" is used. It can be released from the slot 13 by being twisted by a tool inserted through a access opening 19" formed by cutaway positions of the platforms of blades 5a", 5b".
Patent GB-1256163-A (GB)
Title: Apparatus for treating textile yarn
Inventor: FAY ROBERT CLOVIS
IPC: D02J13/00
Filed: 1969-09-26
Abstract: 1,256,163. Treating yarn with gases. DEERING MILLIKEN RESEARCH CORP. 26 Sept., 1969 [16 Oct., 1968], No. 47490/69. Heading D1L. A heated gas, e.g. air, is continuously passed across the passageway 19 between a hollow, rotatable drum 22 having a perforated outer surface 18 and a coaxial annular gas manifold 14 having a perforated inner surface 16 during the passage of a yarn (57, Fig. 1 not shown), in a plurality of wraps about said drum through said passageway, the gas being re-circulated from the interior of the drum through the conduit formed between end walls 44 and 45 to the manifold 14 by means of a fan 50. Electrical heating coils 60 and 61 located in the conduit heat the gas which in turn pre-heats pressurized gas which is passed through a supply tube 41 mounted in a plurality of loops in the manifold 14 to a yarn inlet 26 to thereby propel the yarn through the tube 40 into the passageway 19.
Patent GB-1113345-A (GB)
Title: Improvements in or relating to small arms
Inventor: GREENHILL REGINALD HERBERT
IPC: F41A9/59
Filed: 1965-11-10
Abstract: 1,113,345. Charger guides; cartridge clips. SECRETARY OF STATE FOR DEFENCE. 9 Nov., 1966 [10 Nov., 1965], No. 47668/65. Headings F3A and F3C. A charger guide 1 for a bolt operated, small arms weapon is converted to fit a smaller size of cartridge clip 6 by providing in the recess 3 of the charger guide 1 a liner 5. The liner is secured in the recess 3 by a rivet 7, the head 8 of which projects inwardly of the recess such that it co-operates with the forward edge of the cartridge clip 6 to prevent the clip from falling forwardly out of the charger guide. The head 8 also provides a pivot about which the clip 6 is urged when the bolt 14 and extractor 15 assembly of the firearm is actuated, the pivoting also taking place about the longitudinal axis of the clip to free and facilitate the ejection of the clip from the charger guide. A further pivoting projection 12 is provided on the liner 5. The stages of the ejection of the clip are disclosed with reference to the Figs. 2 to 4 and 2a to 4a (not shown).
Patent GB-478644-A (GB)
IPC: G03C7/14
Abstract: 478,644. Colour photography and Kinematography. KUDAR, H. July 16, 1936, No. 19723. Convention date, July 18, 1935. [Class 98 (ii)] Four-colour picture records are taken on a lenticular film provided on the plain side with two superimposed and inseparable emulsion layers sensitized respectively for bluegreen and yellow-red, separated by a decolourable filter layer, an objective filter being used comprising a red-blue and a yellow-green zone, so that a different pair of additive colour records is formed in each sensitive layer, which pairs combine subtractively when coloured and projected. In a modification for taking three-colour records, the two images in one pair record the same colour. The image-pairs are processed in known manner to complementarily-coloured positives, the pair in each layer being processed to the same colour. The pictures are projected through a similar optical system using a filter similar to the taking filter. In a four-colour example, the film is coated first with the blue-green sensitive emulsion, then with a wash-out filter layer absorbing blue and green, and lastly with the yellow-red sensitive emulsion. After exposure and development, the filter dyestuff between the layers is washed out and the images are coloured red in the layer that was blue-green sensitive, and blue in the other layer. In a three-colour example, the film carries layers sensitive respectively to bluegreen and red and the two filter zones pass respectively red-green and red-blue ; the two additive records in the first layer are coloured deep red, and those in the rear layer blue-green. The Specification as open to inspection under Sect. 91 refers to known methods for producing the coloured positives (1) employing emulsion layers containing leuco-colours which may be processed directly to produce coloured positives, (2) separate staining of the two layers after development. In the second case the intermediate filter layer may consist of a fine-grain slow silver halide emulsion instead of plain gelatin, so that after processing to produce the red positives, the filter layer may be rendered impermeable by chromato tanning to permit the blue processing to be confined to the rear layer only. This subjectmatter does not appear in the Specification as accepted.
Patent GB-970766-A (GB)
Title: Closure assembly, incorporating a valve, for a pressurised dispensing container
IPC: F16K31/58
Filed: 1962-12-19
Abstract: 970,766. Discharging liquids under pressure. SECIVEN SOC. D'EXPLOITATION DE CHIMIE INDUSTRIELLE VOITURIEZ & NORMAND. Dec. 19, 1962 [Dec. 20, 1961], No. 48009/62. Heading FIR. A closure member for an aerosol container 1 includes a frusto-conical outer member 11, a spring-loaded valve member 22 of frustoconical shape and an apertured element 20 which bears on one end of the member 11 and supports the valve spring 24. A stem 23 depresses the member 22 and may be operated by hand. In an alternative embodiment a partly threaded sleeve is positioned over the dispensing tube 17 and a threaded rod which bears on the stem 23 is screwed into the sleeve and the discharge rate of the aerosol is governed by the amount the valve member 22 is depressed. A needle 30 on a stem 31 may be used to prevent excessive discharge rates by blocking the aperture in the element 20 and a packing 25 may be fitted to the valve member 22 to give improved sealing characteristics. When the closure member is fitted to a container having a wide opening, a metal cup is used to secure the closure member to the rim of the aperture of the container (Fig. 2, not shown).
Patent GB-1061046-A (GB)
Title: Improvements in wire rope lubricants
Inventor: KIRKHAM COLIN HARRISON
IPC: C10M169/00
Filed: 1963-12-06
Abstract: A wire rope lubricant composition comprises by weight a major proportion of bitumen, 2-5% of lead naphthenate, 5% of a fatty acid ester of an ethoxylated aliphatic primary amine, or mixture of such esters, the remainder being a mineral oil.  The amine ester has the formula <FORM:1061046/C4-C5/1> wherein R is an aliphatic hydrocarbon group containing 12-18 C atoms, R1-CO and R2-CO are fatty acid residues, and (x+y) is 2-50. The ester may be added as such or formed in situ by adding proportionate quantities of fatty acid and amine separately to the rest of the ingredients.ALSO:A wire rope lubricant composition comprises by weight a major proportion of bitumen, 2-5% of lead naphthenate, 5% of a fatty acid ester of an ethoxylated aliphatic primary amine, or mixture of such esters, the remainder being a mineral oil.  The amine ester has the formula <FORM:1061046/C3/1> wherein R is an aliphatic hydrocarbon group containing 12-18 C atoms, R1-CO and R2-CO are fatty acid residues, and (x+y) is 2-50. The ester may be added as such or formed in situ by adding proportionate quantities of fatty acid and amine separately to the rest of the ingredients.
Patent GB-1047924-A (GB)
Title: Automatic central buffer coupling
IPC: B61G3/04
Filed: 1963-12-10
Abstract: 1,047,924. Railway vehicle automatic couplers. LINKE-HOFMANN-BUSCH WAGGONFAHRZEUG-MASCHINEN G.m.b.H. Dec. 10, 1963 [Dec. 12, 1962], No. 48790/63. Heading B7T. An automatic coupler comprises a rigid buffing jaw 2, a guide horn 6 producing a tight lock when coupled up, a pulling jaw 3 pivoted at 7, and a pivoted strap 10 which is acted upon by a compression spring 11 to hold the jaw 3 in the position shown in Fig. 1 when uncoupled. When mating with a similar coupling the jaw 2a of the other coupling pivots the jaw 3 in an anticlockwise direction and by means of abutments 8, 9 pivots the strap 10 in a clockwise direction. When the jaws 2, 2a are engaged within their opposing pockets, Fig. 2 (not shown), the jaws 3, 3a are pivoted back by the springs 11 to latch over the jaws 2, 2a, and the straps 10, 10a are also moved by the springs to engage over the jaws 3, 3a. The straps may be released for uncoupling by mechanical or pneumatic means (not shown) which in one modification may be connected to the coupler locks. A bolt may be inserted through a hole 13 if the coupler is to be used to mate with a Willison type coupler.
Patent GB-1324191-A (GB)
Title: Compositions comprising a medicament and an excipient
IPC: C08L1/28
Filed: 1970-10-16
Abstract: 1324191 Cellulosic excipient SHINETSU CHEMICAL CO 16 Oct 1970 [17 Oct 1969 23 March 1970] 49260/70 Heading A5B [Also in Division C3] An excipient for medicaments comprises a powdery cellulose ether of apparent density 0.5 to 0.8 g/cc at least 90% of which has a particle size less than 100Á (see Div. C3). In examples tablets are made using this excipient and containing (a) bromvaleryl urea, (b) Vitamin C, (c) pancreatin and cholic acid, (d) mephenesin and (e) calcium hydrogen phosphate; optional ingredients are talc, wax, calcium and magnesium stearates, lactose, starch, cane sugar, gum arabic, gum tragacanth, gelatin, water and alcohol.