baber/WOPTO huggingface dataset:
Patent GB-1395573-A (GB)
Title: Apparatus for measuring the position of an interface between adjacent media
IPC: G01F23/26
Filed: 1972-04-28
Abstract: 1395573 Indicating position of interface between two media CAMILLE BAUER MESSINSTRUMENTE AG 28 April 1972 [6 May 1971] 19882/72 Heading G1N In measuring liquid level or volume or the position of an interface between two media having different dielectric constants, pulses are applied in cyclic sequence to terminals E 1 -E 5  connected to respective pairs of capacitor electrodes arranged as shown in Fig.1, the number of pulses taken to reach the electrode pair which straddles the interface being counted at 7. The straddling pair is identified by an imbalance in the outputs on terminals A', A" connected to a differential amplifier 8, pulse shaper 9 and control input 4b of gate 4 to prevent any further pulses reaching the counter 7. The position of a second, higher, interface may be indicated on a second counter 13 receiving pulses until a second imbalance signal is received by a flip-flop 14. A stepping motor 6 receives pulses via a delay 5 to select each terminal in turn and reset the counters and gates at the end of each cycle. For measuring liquid volume in a horizontal cylindrical tank, the electrodes would be spaced non- linearly to achieve a linear indication of volume. The electrodes may be printed on a coppercoated surface of an insulating tube, the leads passing along the inside of the tube. The tube may be covered with a P.T.F.E. hose.
Patent GB-1131607-A (GB)
Title: Isothiazole derivatives and herbicidal compositions containing them
IPC: C07D275/03
Filed: 1966-05-05
Abstract: 1,131,607. Isothiazole derivatives and processes for their preparation. SCHERING A.G. 5 May, 1966 [8 May, 1965], No. 19958/66. Heading C2C. [Also in Division A5] Compounds of the formula wherein X denotes oxygen or sulphur, R 1  denotes hydrogen or C 1-4  alkyl, and R 2  denotes C 1-4  alkyl or cycloalkyl, may be obtained by reacting 3-methyl-5-amino-isothiazole with (a) an isocyanate or isothiocyanate of the formula R 2 -N=C=X in an inert solvent, or (b) with a carbamyl or thiocarbamyl chloride of the formula in the presence of an acid acceptor.
Patent GB-1376004-A (GB)
Title: Fusible label construction
IPC: B44C1/17
Filed: 1971-11-11
Abstract: 1376004 Transfers AVERY PRODUCTS CORP 11 Nov 1971 19989/74 Divided out of 1376003 Heading B6C A pressure sensitive label assembly for the marking of substrates with heat fusible indicia comprises (a) a release liner 10, (b) a heat fusible indicia 12 in direct adhesive contact with said release liner, (c) a supporting face material 16, (d) a volatilizable pressure sensitive adhesive layer 14 having a first adhesive surface in direct adhesive contact with said heat fusible indicia and said release liner, the adhesion of said first adhesive surface for the heat fusible indicia exceeding the adhesion of said heat fusible indicia for said release liner, and a second adhesive surface in adhesive contact with said face material, the release liner being peelably detachable from the remainder of the label. The label may be made by applying layer upon layer or prefabricating some layers into units before laminating the units to form the assembly.
Patent GB-840791-A (GB)
Title: Improved still
IPC: B01D3/12
Filed: 1944-10-16
Abstract: <PICT:0840791/III/1> A still for the purification of uranium chloride is formed from a vaporizer casing and a condenser casing detachably secured together to form an evacuable enclosure in each of which is situated a removable container in good thermal contact with the surrounding casing, the vaporizer casing and container within it defining a passage between them for the flow of the distilling vapour from the vaporizing container to the vessel in the condenser casing. As shown in the drawing the still is formed in two mating parts 11 and 12 provided with flanges 17 and 18 which form an airtight connection.  The upper casing 11 is surrounded by a heating means 25 and the lower casing is cooled by a coolant passing through pipe 26 and leaving at 27.  The upper casing is provided with an inner distilling vessel 32 which is in close contact with the inner walls of the casing 11 except for an indentation 41 which permits vapours to pass downwardly into the lower vessel.  The upper vessel 32 is divided into sections formed by internal walls 38 and 40.  The lower, condensing vessel 33 in good thermal contact with the surrounding condenser casing and mating at its upper circumference with the bottom of the vaporizing vessel 32, is provided with a baffle means generally indicated at 46 and a pipe 45 which is connected to a vacuum pump. The flanges 17 and 18 connecting vessels 11 and 12 are provided with recesses 20 and 21 each containing a rubber gasket, and also with an annular channel 22 which is connected by a drilling 23 to a manometer pipe 24.  In operation the recess 22 is evacuated by the operation of a vacuum pump in order to test the efficacy of the sealing gaskets in 20 and 21.  The apparatus is particularly suitable for the purification of uranium chloride.  Thus a charge of the chloride is placed in the compartments of the vaporizing chamber 32 and the apparatus is subjected to a pressure of 10-4 to 10-5 mm. Hg. For example a charge of uranium pentachloride is placed in the upper container, the casing 11 of which is maintained at 200-220 DEG  C. and the lower casing 12 is maintained at about 40 DEG  C.  The pentachloride disproportionates into uranium tetrachloride, which remains in the upper container as a residue and uranium hexachloride which sublimes and passes down to the lower container where it is condensed.  The still is opened in a carbon dioxide atmosphere.  If uranium tetrachloride is desired, a charge thereof is pressed into the compartments of the upper vessel as before and the upper casing 11 is maintained at 650-675 DEG  C. whereupon uranium tetrachloride sublimes leaving a residue of uranium oxide and oxychlorides. Similarly uranium hexachloride may be purified by placing it in the upper vessel and heating the casing thereof at 220-220 DEG  C. whereupon any residual tetrachloride remains as a residue and the uranium hexachloride sublimes.  Specification 804,311 is referred to.
Patent GB-217793-A (GB)
Title: Improvements in clinical thermometer cases
IPC: G01K1/08
Filed: 1923-08-04
Abstract: 217,793. McNally, F. Aug. 4, 1923. Thermometers. - A case A for a clinical thermometer is provided with a plain-fitting cap B engaging its inner surface. Within the cap is a rubber tube C which fits it tightly and grips the upper end of the thermometer D. Specification 8958/02 is referred to
Patent GB-725634-A (GB)
Title: Improvements in the vulcanisation of rubber
IPC: C08K5/02
Filed: 1953-07-21
Abstract: Sulphur-vulcanizable rubbery hydrocarbon polymerizates derived from conjugated dienes are vulcanized by heating in the presence of hexachlorocyclopentadiene, preferably in an amount of 1-200 per cent for a time sufficient to vulcanize the polymerizate.  The polymerizates may be polybutadiene, butadienestyrene copolymers, and butadiene - para - methylstyrene copolymers.  The product has marked flame resistance and is insoluble in benzene.  Sulphur and metal oxide activators need not be added although zinc oxide, magnesia, or litharge in an amount of 0.5 to 20 per cent may be used to accelerate the reaction.  Carbon black may also be added.ALSO:Sulphur-vulcanizable rubbery hydrocarbon polymerizates derived from conjugated dienes including natural rubber are vulcanized by heating in the presence of hexachlorocyclopentadiene, preferably in an amount of 1 to 200 per cent. for a time sufficient to vulcanize the polymerizate.  The product has marked flame resistance and is insoluble in benzene.  Sulphur and metal oxide activators need not be added although zinc oxide, magnesia or litharge in an amount of 0.5 to 20 per cent may be used to accelerate the reaction.  Carbon black may also be added.
Patent GB-572186-A (GB)
Title: Improvements relating to vibratory sieves
IPC: B07B1/38
Filed: 1943-12-03
Abstract: 572,186. Sifting apparatus. CORCORAN, Ltd., B., and SMITH, G. E. Dec. 3, 1943, No. 20229. [Class 117] Apparatus for sifting materials such as grass seeds, comprises sieves which may be in tiers such as 2, 3 mounted in a frame 1 which is driven at its head in a closed path having vertical and horizontal components and is mounted on links 26 at its tail end to have a flat swinging movement. Balls 11 are contained in compartments under the sieves formed by transverse and longitudinal strips 9, 10 and wire grids 7, 8. The links 26 are adjustable in lengths and are pivoted to adjustable brackets 28. The head motion is derived from a crank-shaft 15 driven through variable-speed gearing 23 consisting of a three-flanged V-groove pulley with an adjustable middle flange.
Patent GB-516309-A (GB)
Title: Improvements in hand brake mechanism of the pull-out type for road vehicles
IPC: B60T7/10
Filed: 1938-07-08
Abstract: 516,309. Brake operating mechanism. LEWIS, W. J. July 8, 1938, No. 20241. [Class 103 (i)] [Also in Group XXXI] Hand-brake mechanism for vehicles, of the pullout type comprises a tubular member connected to the brakes and slidable in an outer member, a pawl carried by the tubular member and engageable with teeth on the outer member and releasable by a rod slidable in the tubular member. A tubular member 8 slidable in an outer member 1 and having a handle 9 carries on a pivot 13 a pawl 12 adapted to engage teeth formed by slots 18 in the member 1. The pawl is disengaged by a rod 22 slidable through the handle 9 and having a knob 23, the rod carrying a piece 21 with an inclined end engaging the 'pawl. A spring 24 seated on a fixed part 25 and on the end 27 of the rod normally holds it in position in which the pawl is engaged by a spring 15. The pivot 13 extends through slots in theouter member 1 to prevent rotation of the member 8. The member 8 is gapped at 34 to receive the nipple 35 of a Bowden cable 10 connected to the brakes. The casing 40 of the cable is received in a bushing 36 fitting in the member 1 and held by a pin 37 and bayonet-slot. The ends of the member 1 are slotted and formed with lugs 4, 5 for attaching to the vehicle, the lugs 4 also serving as a clip to secure the bushing 36.
Patent GB-157496-A (GB)
Title: Improvements in or relating to intercommunication telephone systems
IPC: H04M9/00
Filed: 1919-08-18
Abstract: 157,496. Thompson, W. P., (Hames, F.). Aug. 18, 1919. Intercommunication systems and apparatus.- In an intercommunication telephone system, each station is provided with one combined calling and selecting key for each other station of the system. If the called station be engaged, the appropriate key when depressed fails to remain in the depressed position. If the called station be disengaged, this key is retained and establishes communication, and an audible signal also is given at the calling station. A plate V, Fig. 1, is pivoted at 2 and is also pivotally connected to a member 21 mounted on a longitudinally sliding flexible bar 6. The plate V carries a projection 3 adapted to engage a projection 1 on the plunger A so as to retain the latter when depressed, provided that the bar 6 is to the left, Fig. 1. Normally, the bar 6 is held to the right by a catch C. When, however, a disengaged station is called by depressing the plunger A, current flows from a calling battery through the electromagnet B in series with a low-resistance bell at the called station, and the catch C being thus withdrawn the bar 6 moves to the left and permits the plunger A to be retained. The interruption of the calling-current by the bell at the called station causes the electromagnet B to chatter, thus giving an audible signal at the calling station. If, however, the called station be engaged, its speaking circuit, which is of high resistance compared to its bell, comes into series with the electromagnet B, and the current therethrough is not great enough to release the catch C. Alternatively, the bell at each station may be replaced by a direct-current relay working a local bell-circuit. The plunger A is restored when the receiver is replaced, the hook-switch plunger 13 operating a lever 8, the catch 18 on which engages a member 19 and draws the bar 6 to the right. Eventually, the catch 18 slips over the member 19 and leaves the bar 6, which is made flexible for the above purpose, under the control of the catch C.
Patent GB-933426-A (GB)
Title: Improvements in change-over valves for fluids
Inventor: HEAUME HERBERT DU
IPC: F16K11/052
Filed: 1961-06-06
Abstract: 933,426. Valves. HENRY SIMON Ltd. June 1, 1962 [June 6, 1961], No. 20351/61. Class 135. [Also in Group XXX] A hinged valve 9 particularly for pneumatic conveying of granular material, changes over the connection of inlet 1 to one of two outlets 2, 3 in a Y-junction and has the joints between all relatively movable parts positively sealed by replaceable sealing elements 9, 16, 18. The valve, operated manually, by fluid motor 23 or electrically via rubber buffers or springs 20, 21 which make the valve self-locking in an extreme position, has rectangular conduits and the sealing strips are of metal, rubber or nylon in slots backed by rubber or equivalent spring elements 17, the strips 9 sealing on the flat sides adjoining walls 6, 7. The ends of the operating spindle 10 are also sealed by spring-backed bushes while the loading of one spring 20 or 21 presses the valve 9 on to seats 18. The sealing strips may be replaced by inflatable elements.
Patent GB-136236-A (GB)
Title: Device for Producing Rod, Cord or Tubing of any desired section and possessing circumferential ribs or projections from compounds of India Rubber, Balata, Gutta Percha and the like substances.
Inventor: ABERNETHY ALEXANDER
IPC: B29C48/09
Filed: 1918-12-07
Abstract: 136,236. Abernethy, A. Dec. 7, 1918. Elastic cords.-To the die of an extension machine is attached a device whereby circumferential ribs or projections are formed on rods, cords or of india-rubber, balata, gutta-percha, or as they are formed. To the die a is attached by a coupling c a disk d, having a bevelled aperture a<2>, corresponding with that in the die, and on the face of the disk are radially movable jaws f, which in their closed position form a bevelled aperture corresponding to that in the disk d. Between the disk d and the jaws f is thus formed a chamber into which the material may expand when the body m of the rod or tube is being formed, and at the point thereon at which a circumferential projection m<1> is required, the jaws are opened to allow the projection to pass. For operating the jaws f, they are each provided with inclined slots f<2>, with which engage studs i projecting from a casing g which may be rotated on the disk d by means of a handle j.
Patent GB-314877-A (GB)
Title: Improvements in engine-driven automatic variable speed gears
IPC: F16F15/123
Filed: 1929-07-03
Abstract: 314,877. Aktiebolaget Spontan. July 3, 1928, [Convention date]. Drawings to Specification. Flywheels. - A flywheel is in two separately revoluble parts connected by torsionally resilient telescoping shafts which are connected at their further ends. Between the flywheel sections are vibration-damping rings which are of wedge section and are pressed apart into gripping engagement by spring means
Patent GB-294382-A (GB)
Title: Improvements in or relating to means for securing portable underground mining apparatus in working position
IPC: E21F13/08
Filed: 1927-08-02
Abstract: 294,382. Lithgoe, J., and British Jeffrey Diamond, Ltd. Aug. 2, 1927. Anchoring devices for driving-gear.-Conveyer driving-gear C for use in mines is held in working position in the seam by steel shoes B pressed against the floor by heavy steel screw props A. One or each,of the props is provided with adjusting screws b<3>, b<4> which are screwed up to bear against the gear casing. The inner faces b<5> of the shoes are curved and sloping and the ends of the bed plate of the gear are correspondingly but inversely shaped. Light timber props D may be used in addition to the steel props.
Patent GB-792429-A (GB)
Title: Process for the manufacture of strip steel
IPC: C21D8/02
Filed: 1955-07-14
Abstract: The hot-rolled stock which is used in the manufacture of strip steel according to the parent Specification comprises steel which has been hot-rolled very slowly to thin wire e.g. with a diameter of 5 mm. The steel is preferably brought to rolling temperature rapidly by direct electrical resistance heating.  Before or during cold-rolling the stock may be brought to a temperature above 600 DEG C. and below the Ac, point of the heating curve.  The strip steel may be used to make wood band saws and metal saws. Specification 762,127 is referred to.
Patent GB-1176813-A (GB)
Title: Hinged Articles.
Inventor: ROBIN MAURICE HENRY
IPC: B29C45/00
Filed: 1967-07-26
Abstract: 1,176,813. Moulding foamed articles with integral hinges. ROLINX Ltd. 16 July, 1968 [26 July, 1967; 30 April, 1968], Nos. 34400/67 and 20470/68. Heading B5A. [Also in Division B8] A hinged article comprising two foamed thermoplastic polymeric articles, each with an integral solid skin joined by an integral hinge of non-foamed material is made by injecting a composition containing a thermoplastic polymeric material and (at least in part) a blowing agent into a mould comprising a pair of opposed surfaces and a hinge defining component. The polymer temperature is above the activation temperature of the blowing agent, but the mould surface temperature is below, causing a non-foamed skin to form on the foamed members. Foaming is prevented at the hinge by the small spacing between the hinge defining component and the opposite wall. In the mould shown, the hinge is formed by heated member 5 which is pushed downwards into the position shown, destroying the foam structure. In a second embodiment, a non-foaming mixture is introduced into the mould to form the skin and hinge, the top of the mould 1 excluding the hinge defining member 5 is raised and a foaming polymer is injected into the preformed skin. In another embodiment, a preformed hinge of non-foamed polymer or textile fabric is clamped between the hinge defining member 5 and a projection from the base 2 with its ends extending into the moulding cavities and the foamed members are formed in the cavities and become integrally bonded to the hinge. The polymer may incorporate fillers or pigments such as glass or asbestos fibres or glass or mica plats and the polymer may be polypropylene, a polyamide, a polycarbonate, ABS, a polyacetal, a polyphenylene oxide, a polysulphone, PVC, polyethylene or polymethylmethacrylate. The process may be used to produce blanks for boxes or similar containers, the sides, base and top being foamed sheets with a non-foamed outer layer joined by moulded hinges with optional unfoamed tags (formed by the same method as the hinges) provided for joining the edges.
Patent GB-1435509-A (GB)
Title: Pneumatic tyre and wheel assemblies
IPC: B60C17/10
Filed: 1972-05-03
Abstract: 1435509 Lubricants DUNLOP Ltd 26 April 1973 [3 May 1972] 20501/72 Addition to 1359461 Heading C5F [Also in Division B7] A pneumatic tyre 1 and wheel 3 assembly comprises means enclosing separately from one another at least two ingredients of a lubricant composition, the enclosing means being adapted to automatically release the ingredients into the inflation chamber of the assembly when deflation of the tyre occurs during running, in order to form the composition so that the latter can lubricate contacting parts of the interior surface of the deflated tyre thereby preventing tyre destruction and enabling continued running in the deflated state. In the embodiment illustrated in Fig. 3, the lubricant composition is divided into two different parts and the enclosing means comprises four containers spaced circumferentially around the wheel rim, two of which contain one part of the composition and the other two of which contain the other part of the composition. Each container consists of a rigid plastics shell 5 provided with a plunger 11 which is contacted by the interior surface of the tyre on deflation so as to cause release of the lubricant composition part from the shell. The enclosing means may alternatively be containers of the form described in Specifications 1,359,461 and 1,401,955 and may be mounted inside the inflation chamber either on the wheel rim as shown or on the tyre, or alternatively on the wheel outside the inflation chamber. Two separately enclosed ingredients of the lubricant composition may be water, which will evaporate at the temperatures generated during running of the deflated tyre and hence partially reinflate the tyre, and a solid gelling agent for the water, e.g. cellulose derivatives or carboxyvinyl polymers. Alternatively two ingredients which react when brought together to form a gas to partially reinflate the deflated tyre may be separately enclosed, the specific example being given of an aqueous solution of sodium bicarbonate being separately enclosed from a mixture of ortho-phosphoric acid and poly- (oxyalkylene)glycols. Numerous other suitable ingredients and formulations for the lubricant composition are given in the Specification. Reference has been directed by the Comptroller to Specification 1,359,467.
Patent GB-683241-A (GB)
Title: Improvements relating to fishing nets
IPC: A01K73/02
Filed: 1950-08-18
Abstract: 683,241. Sounding-apparatus. NEDERLANDSE CENTRALE ORGANISATIE VOOR TOEGEPAST - NATUURWELENSCHAP - PELIJK ONDERZOEK. Aug. 18, 1950 [Aug. 29, 1949], No. 20551/50. Class 97 (ii). [Also in Groups VI and XXXVIII] A device attached to a trawl net for indicating the depth of fishing comprises a flexible membrane 27 pressed on one side by the water and adapted to move endwise, a shaft 28 rotated by a propeller 29 driven by the forward movement of the net. The shaft carries a plurality of toothed wheels 30 which are thus selectively engaged with a flexible stud 31 and the selected wheel causes the stud to vibrate and transmit a sound which is received on the fishing vessel. The wheels have different numbers of teeth so that the pitch of the sound varies with depth.
Patent GB-646715-A (GB)
Title: Preparation of phenolic ethers and esters
IPC: C07C43/20
Filed: 1947-07-30
Abstract: Phenolic ethers and esters are prepared by partially or completely substituting hydrocarbon radicals for the hydrogen atoms of the phenolic hydroxyl groups of phenols or phenolic materials which occur naturally in the plants of the Flora family anacardiace , such as marking nut shell liquid and Japanese lac, the phenols derived from these materials and the phenols derivable from but not present in cashew nut shell liquid by known methods, e.g. by reacting the phenol with the hydrocarbon ester of a mineral acid under alkaline conditions.  In examples: (1) marking nut shell liquid is etherified with amyl chloride, and in a modification of the example, benzyl chloride may be used; (2)-(6) as in example (1), using varying amounts of the two reactants. Additional etherifying agents mentioned include monoethyl sulphate, diethyl sulphate, and monopropyl sulphate.  It is stated that hydrocarbon substituents may have aliphatic straight or branched chains and aryl radicals may also be present with or without aliphatic side chains.  The number of carbon atoms may be from one to twenty.  The products are useful in the arts of resin making and varnish making.