baber/WOPTO huggingface dataset:
Patent GB-1442918-A (GB)
Title: Storage tanks
IPC: F17C3/06
Filed: 1974-06-21
Abstract: 1442918 Detecting cracks in tanks MITSUBISHI JUKOGYO KK 21 June 1974 [22 June 1973] 27769/74 Heading F4P A cryogenic tank includes maens for detecting cracks therein which comprise a plurality of mutually spaced radio-active sources 5 located on the inside of the outer shell 1, and means, such as a dosimeter, for measuring the radioactivity of the sources. Each source, Fig. 4, includes a container comprising a lead casing 5a with a window 5b which hermetically encloses a capsule 5c containing a radio-isotope. The dosimeter would measure the radio-activity from inside the tank, a peak of intensity indicating a crack, and the degree of the peak intensity indicating whether the crack is in the intermediate wall 4 or inner wall 3. Materials.-Radioisotope-cobalt 60, Heat insulation 2a, 2b-hard polyurethane foam, polystyrene foam or polyethylene foam. Impermeable layers 3, 4-material sold under Registered Trade Mark "Alumimilar". This comprises aluminium foils laminated with polyester resin and a composite material having glass or carbon fibres combined with polyurethane resin, epoxy resin, silicone resin or polytetrafluoroethylene.
Patent GB-413155-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1933-10-09
Abstract: 413,155. Spray carburetters. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER, 17, Riddaregatan, Stockholm. Oct. 9, 1933, No. 27789. Convention date, Feb. 8. [Class 7 (iii).] A bifuel carburetter is provided with means operable independent of the throttle valve of the engine to supply to one or more of a plurality of nozzles opening into the mixing chamber at no load light fuel exclusively, at partial loads both light and heavy fuel and at full or approximately full load, heavy fuel. At partial loads, the proportions of light and heavy fuel vary under the action of the throttle valve, the light fuel decreasing and the heavy fuel increasing as the load increases. Light fuel flows from a float chamber 3 through a passage 15 to valve chambers 16, 17 having ports 27, 28 housing valves 21, 22 closed normally by springs 24 and heavy fuel from a chamber 4 to a chamber 20, the outlet 29 of which is closed by a similar valve 23. The ports 27, 29 lead into a chamber 30 containing a rotary plug 7 and communicating with a main nozzle constituted by an annular slit in a Venturi shaped air passage. The plug extends downwards past the port 28 and makes fluid-tight contact with the chamber at its lower end and intermediate the ports 27, 28. Recesses are cut in the plug opposite these ports, and the chamber formed by the lower recess 38 communicates with idling, starting and transition nozzles. Recesses 41 near the top of the plug, co-operate with a ball 40 to set the plug in any one of three positions. As shown, the valves 21, 22 are closed to cut off the light fuel and the plug engages a pin 36 on the valve 23 to open it for the passage of heavy fuel to the main nozzle. In a second position, the valve 23 is maintained open and the recess 38 is moved away from a pin 35 on the valve 22 permitting the plug to open the valve for the passage of light fuel to the idling &c. nozzles. The idling and starting nozzles are disposed adjacent the throttle and function when the throttle is open or when it is nearly closed to cut off the heavy fuel supply through the main nozzle. Further rotation of the plug 7 brings the recess 37 opposite the valve 23 ; the heavy fuel is cut off and light fuel supplied through the valve 21 to the main nozzle, the valve 22 also remaining open. An acceleration pump may be associated with the light fuel chamber 3.
Patent GB-173330-A (GB)
Title: Improvements in or relating to transporters, cranes and like hoisting and lowering apparatus
IPC: B66C13/54
Filed: 1920-09-30
Abstract: 173,330. Mitchell, r. G. Sept. 30, 1920. Jib cranes; transporters; staiths and elevated structures.-Comprises means for mounting the operator's cabin on the post of a crane or transporter or the staith of a loading-apparatus. Fig. 1 shows one arrangement in which the cabin f is mounted at the end of a linked parallelogram i positioned by electrically-operated winding-gear g so that it can be swung out to the position shown in full lines to project over the barge e for inspection of the filling of the grab d or can be raised to any point within the limit shown by dotted lines, to inspect other features in the loading and unloading operations. In some cases the inner pivots j may be mounted on pivoted brackets which permit an additional slueing motion of the cabin. The cabin also may be mounted so as to move horizontally in a straight line towards and away from the staith h. Fig. 3 shows one example of this movement in which the cabin is mounted at the end of lazy-tongs 3. By operating the bevel-gear v, two nuts s are traversed to extend or collapse the two sets of links, the slides r meanwhile moving in guides t on the cabin. By operating worm gear near the lower bracket n, the cabin and lazy-tongs can be slued about the pivots m. In some cases the cabin may have a slueing movement only. In all cases the movement of the cabin is controlled by the operator from the interior thereof.
Patent GB-483306-A (GB)
Title: Improvements in or relating to lubricants
IPC: C10L1/18
Filed: 1936-10-14
Abstract: A lubricant consists essentially of a lubricating-oil having dispersed therein between ,05 and 1 per cent by weight of an aromatic compound containing a nuclear hydroxy or ether group and a nuclear tertiary alkyl substituent.  The aromatic compound may be phenol, a homologue thereof, or an aromatic-aliphatic ether, containing a nuclear tertiary alkyl substituent, e.g. tertiary butyl cresol or the ethyl ether thereof.
Patent GB-784309-A (GB)
Title: Improvements in or relating to raking devices
IPC: A01D80/00
Filed: 1954-09-28
Abstract: 784,309. Side-delivery rakes. VAN DER LELY N.V., C. Sept. 28, 1954 [Oct. 15, 1953], No. 27998/54. Class 6(3).  In a side-delivery rake of the type having a series of oblique rotary rake-wheels 7, 8, 9, 10 driven by ground-contact, the rake-wheels are mounted on rigid axles 3, 4, 5, 6 on a frame 1 and are themselves sufficiently flexible to compensate for ground-irregularities. The rakewheel construction is similar to that described in Specification 731,040 and comprises spokes 25b radiating from a central hub A and passing through two spaced concentric rims 29, 30 with a change of direction at each rim, each spoke terminating in a crop-engaging tooth 25f. The arrangement differs from the prior construction in that the rims 29, 30 are not co-planar, the spoke-portions 25d between these rims defining a conical surface. Two of the axles 3, 6, are extended rearwardly and terminate in a tubular upright 33 into the lower end of which the swivel-axle of a castor wheel 11, 12 may be inserted. The whole device may be inverted for tedding and the castor-wheel axles are then inserted in the opposite ends of the tubes 33. The device is pulled by an adjustable drawbar 13. Specification 784,314 also is referred to. Reference has been directed by the Comptroller to Specification 731,040.
Patent GB-192449-A (GB)
Title: Improvements in or relating to portable electric hand lamps
IPC: H01R33/965
Filed: 1921-10-22
Abstract: 192,449. Cable Accessories Co., Ltd., Reeves, F. H., and Davis, P. W. Oct. 22,1921. Hand lamps without lanterns.-In a portable electric hand lamp, the bulb socket a is provided with a flange a<1> which is gripped between two pieces of insulating material b, c. The part b is grooved to receive a divided collar d each half of which is provided with an arm e forming a stirrup. A cage g is secured by wing-nuts and screws to lugs f on the collar d and bears on the part c to hold the various parts of the lamp socket in position. A stirrup h is adjusta.bly secured to a handle i and is pivotally connected to the arms e of the collar d. The leads k pass through the handle h and the insulator b, the outer end of which is of such a form that when the handle is displaced angularly with respect to the bulb-holder, the leads will not be tensioned unduly. A hook l<1> is pivotally secured to the end of the handle i. In a modification, the part d is replaced by an annular clamp provided with lugs similar to the parts c.
Patent GB-853837-A (GB)
Title: Food chopper
IPC: B26D3/26
Filed: 1959-08-18
Abstract: 853,837. Food choppers. ZYSSET, K. Aug. 18, 1959 [Aug. 28,1958; Nov. 20,1958], No.28120/59. Class 28 (2) The stripper 8 for the zig-zag blade 6 of a food chopper is force-fitted into the bell 1 from below where its peripheral wall 8a is held between shoulder projections 9, 10 but allowing rotation. The bell is provided with four internal vertical ribs 12 and other ribs 13. The cutter 6 is secured at 5 to a cross bar on the shaft 3 of the reciprocated top 4. Slots 14 are provided in the bell to facilitate assembling and cleaning. The shoulders 10 may comprise spring tongues.
Patent GB-662529-A (GB)
Title: Improvements relating to the marking of labels and the like
IPC: B42F17/00
Filed: 1949-11-03
Abstract: 662,529. Paper-cutting machines. GIBSON, C. CAREW-. March 13, 1950 [Nov. 3, 1949], No. 28173/49. Class 31 (i). In a machine of the type described in Specification 339,724, [Class 146 (ii)], for marking labels, there is provided label holding and clamping means comprising an outer clampplate 2 fixable in a set position on the machine platform 12, a carrier 19 slidably mounted on the platform, means for moving said carrier towards and away from the clamp-plate 2, an inner clamp-plate 1 detachably mounted on said carrier and having a set of parallel bars 3 adapted to embrace a pack of labels or the like and to hold them against movement, together with co-operating means on the carrier and on the platform for up-ending the carrier when it is retracted from the clamping position so as to facilitate changing the pack of labels. The carrier 19 is provided with sockets 30 which, when the carrier is retracted, co-operate with hinge-pins (not shown) on the platform, the carrier then pivoting upwards about the hinge-pins.
Patent GB-167979-A (GB)
Title: Improvements in high pressure valves
IPC: F16K1/30
Filed: 1920-10-05
Abstract: 167,979. Thornton, A. A., (Safety Car Heating & Lighting Co.). Oct. 5, 1920. Leakage, stopping and preventing.-A screw-down valve for high pressures, for example in connection with compressed gases, is provided with a corrugated metal cylinder attached at one end to the valve member and at the other end to the casing to prevent leakage and also act as a spring. The valve body 1 is screwed externally at 6 for insertion into a container and at 8 to receive a cap 9. A spindle 15 carrying a conical valve 14 is provided with a shoulder 19 to limit its upward movement, and with a screw-threaded enlargement 16 at its lower end to receive the end of an elastic metal cylinder 17 with helically corrugated walls. The upper end of the cylinder 17 is secured in a similar manner in a sleeve 20 which is retained by the cap 9. The two joints of the cylinder 17 are hermetically sealed, and the cylinder is closely enclosed between the body 1 and spindle 15 so that it is supported laterally. The valve is normally held open by the contraction of the cylinder 17 and is closed by screwing down the member 12 upon the extension 18 of the spindle 15,
Patent GB-206676-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/12
Filed: 1922-10-17
Abstract: 206,676. Ransford, R. B., (Pike, R.). Oct. 17, 1922. Screw propellers.-Relates to screw propellers comprising a number of like blades arranged in pairs the two blades of a pair being offset both axially and circumferentially and the pairs being equally spaced around the axes and consists in making the rear blade the leading blade and in both side and end view making the rear blade overlap the front blade by one-half the width. The aft blades E, E<1>, are similar to and overlap the corresponding forward blades D, D<1>, and their leading edges are in advance of the leading edges of the other blades D, D<1>. The propeller may be used for marine or aerial propulsion or as a pump or fan.
Patent GB-864137-A (GB)
Title: Polymerisation compounds
IPC: C08F14/06
Filed: 1958-09-04
Abstract: 864,137. Polymerizing vinyl chloride. SOLVIC S.A. Sept. 4, 1958 [Sept. 6, 1957; Nov. 16, 1957], No. 28487/58. Class 2(6). Vinyl chloride is polymerized at temperatures lower than room temperature in the presence of a catalyst consisting of at least one organic boron derivative of formula BR 3  where R is an alkyl radical. Specified boron trialkyls are boron triethyl and boron tributyl. The vinyl chloride may be copolymerized, e.g. with methyl methacrylate, and polymerization may be effect in bulk, in inert organic liquids, e.g. n-hexane, or in aqueous media which may contain freezing point depressants, e.g. electrolytes, to give crystalline polymers.
Patent GB-836180-A (GB)
Title: Improvements in the preparation of 7-aminoheptanoic esters
Filed: 1958-09-05
Abstract: A process for the production of esters of 7aminopheptanoic acid comprises esterifying a 6halohexanoic acid, nitrilating the ester by heating with the cyanide of an alkali or alkaline earth metal in the presence of an inert, polar, organic solvent which is liquid at the reaction temperature and which contains in addition to oxygen an element having an atomic number up to 16 from Group V or VIA of the "Periodic Chart of the Elements" as shown in "Handbook of Chemistry and Physics," 38th Edition.  Solvents specified include dimethyl sulphoxide, dimethyl sulphone, acetamide, butyramide, dimethylacetamide, diethylacetamide, di-isopropylacetamide, hexamethylphosphoramide, N,N,N1,N1 - tetramethyl glutaramide, ethylcarbamate, alkyl-substituted pyridine-Noxides wherein the alkyl radicals contain from 1 to about 8 carbon atoms such as 2-methyl pyridine N-oxide and 2-methyl-5-ethylpyridine N-oxide.  The esterification of the 6-halohexanoic acids, wherein the halogen may be fluorine, chlorine, bromine or iodine may be carried out e.g. by heating the alcohol and halo acids in the presence of an acid such as sulphuric acid and removing the water as it is formed.  Alcohols specified include ethanol, isopropanol, n-propanol, n-butanol, n-octanol, 2ethyl butanol, pentanol, 2-ethyl hexanol, cyclohexanol and 1- and 2-phenylethanols.  The preparation of the ethyl, isopropyl, propyl, n-butyl, cyclohexyl, 2-ethylbutyl and 1-phenylethyl esters of 6-cyanohexanoic- and 7-aminoheptanoic acid is described in examples.
Patent GB-712925-A (GB)
Title: Improvements in or relating to powder compacts and like boxes, or cases for personaluse
IPC: A45D33/18
Filed: 1951-12-05
Abstract: 712,925. Powder compacts &c. WYNER, H. April 25, 1952 [Dec. 5, 1951], No. 28523/51. Class: 18 [Also in Group XXXVIII] A container such as a powder compact has an aperture in one face beneath which are one or more rotatable discs carrying markings &c. for exposure through the aperture. The disc is carried in the lid 2 and is rotated by a knob. 7 integral therewith. The disc is indexed in any one position by depressing it against a spring 9 for rotation and releasing it so that one of a series or depressions or apertures 11 is engaged by a rivet 10. In an alternative form, two concentric discs may be independently rotatable to present markings beneath two apertures. Specification 586,942 is referred to.
Patent GB-650019-A (GB)
Title: Improvements in and relating to cathode-ray tubes and circuit-arrangements therefor
IPC: H01J31/04
Filed: 1948-11-03
Abstract: 650,019. Frequency measuring. MULLARD RADIO VALVE CO., Ltd., DELL, H. A., CAPLE, K. M., and BEAVEN, C. H. J. Nov. 3, 1948, No. 28546. [Class 37] [Also in Groups XL (a) and XL (c)] In a cathode-ray tube, the outer surface of the face on the inner surface of which the electron beam is incident, is provided with a conductive collector coating surrounded by a conductive screening coating. The two coatings may be rectangular as shown at 10, 11 in Fig. 3, which also shows a circuit arrangement. The charge produced on coating 10 by the beam is led away through an impedance 17 to earth, producing a voltage which may be fed away through a capacitor 18. Thus if a triangular or sine wave signal is fed into terminals 21, 22 connected to the horizontal deflector plates 15, a trapezoidal wave form of the same frequency as the input signal is produced. The circuit may be used for frequency comparison by feeding different frequencies to the plates 15 and the grid 13. The output across the impedance will thus exhibit beats at a frequency equal to the difference of the first-mentioned frequencies. If the frequencies are equal, the output will be a maximum when the maximum beam intensity occurs while the beam is behind coating 10. Thus the output is a measure of the phase difference between the two frequencies.
Patent GB-431614-A (GB)
Title: Improvements in electrodes for electric arc converters
IPC: H01T11/00
Filed: 1934-10-05
Abstract: 431,614. Arc converters. MARX, E., 431, Husarenstrasse, and BUCHWALD, H., 34, Bultenweg, both in Brunswick, Germany. Oct. 5, 1934, No. 28576. Convention date, Dec. 2, 1933. [Class 40 (v)] In an arc converter, in which arcs are periodically initiated between electrodes past which a gaseous fluid is adapted to flow, the electrodes on opposite side of the arc gap are cooled by fluid, and each electrode forms a surface of a cooling chamber from which it may be separated. In an arc converter, which is described in Specification 430,628, the main and screen electrodes 1, 2, formed of silver, copper or alloys thereof, are secured by welding, pressing or lead packings to members 10, 15 to form cooling chambers 25, 27. To facilitate cooling the members 10, 15, and also the electrodes, if cast, sprayed or stamped, are provided with flutes or vanes, e.g. annular vanes. The cooling chambers 25, 27 may be connected in series or parallel and the cooling fluid may be circulated through the arc gap.
Patent GB-924216-A (GB)
Title: Improvements in and relating to control systems using servo-motors
IPC: G05D1/00
Filed: 1959-08-21
Abstract: 924,216. Automatic control. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. Aug. 21, 1959 [Sept. 24, 1958], No. 28620/59. Class 38 (4). In an error-actuated servomotor system the sum of signals respectively dependent on the error and its first and second time derivatives is applied through a peak limiting device to control the servomotor in opposition to the sum of signals respectively dependent on the displacement, velocity and acceleration of the servomotor. As shown, an attitude reference 1, e.g. a gyroscope operates a potentiometer 3 to produce a voltage a dependent on deviation of attitude of an aircraft from a desired value as well as a generator 4 to produce a voltage a<SP>1</SP> dependent on rate of change of attitude. A further voltage α<SP>11</SP> dependent on the second differential of attitude is derived from voltage α<SP>1</SP> through a transformer 6. The three voltages are added together and applied to a servo-amplifier 8 controlling a servomotor 9 actuating a control surface 10 to restore the aircraft to the desired attitude. Displacement, rate and second differential follow-up signals #, #<SP>1</SP>, #<SP>11</SP> derived by a potentiometer 12, generator 13 and transformer 15 from movements of servomotor 9 are fed back to amplifier 8. A peak limiter 7 prevents the total attitude responsive signal from exceeding a value which would drive servomotor 9 to either of its limits.
Patent GB-617301-A (GB)
Title: Improvements relating to liquid fuel injection pumps
IPC: F02D1/00
Filed: 1946-09-25
Abstract: 617,301. Starting oil engines. C.A.V., Ltd., and NICOLLS, W. E. W. Sept. 25, 1946, No. 28656. [Class 7 (iii)] The movement of the regulating rack 2 of a fuel injection pump in a direction to increase delivery is limited by the end of an adjustable screw 3, carried by the rack, engaging a stop 11 pivoted on a stud 7 and adjusted by a screw 10. To permit excess fuel to be delivered at starting, a second stop 12 is pivoted in a forked portion of the stop 11 so that when the stop 11 is depressed by a button 18 against the spring 16, the screw 3 is in alignment with the stop 12 which is retained in this position by being pressed by a spring 13 into a groove 15 on the stud 7. When the screw 3 engages the stop 12, the latter is disengaged from the groove 15 and eventually the spring 16 returns the stop 11 to its normal position.
Patent GB-483576-A (GB)
Title: Improvements in or relating to radio and other modulated carrier wave transmitters
IPC: H02H1/00
Filed: 1936-10-21
Abstract: 483,576. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WASSELL, H. J. H. Oct. 21, 1936, No. 28660. [Class 40 (v)] In a suppressed or quiescent carrier system, a direct-current potential derived from the modulating signal is employed to put the transmitter into the " carrier-on " condition and operates a relay which connects a source of potential in such a manner that the transmitter is maintained in the " carrier-on " condition while signals are applied. Speech or other modulating signals supplied at IN are rectified at Re and cause a direct current to now through resistance R1 and the relay coil X; the rate of rise and decay being controlled by condenser Cl. The transmitter proper, which is modulated by circuits, not shown, is keyed on and off as regards carrier in any known manner, by the valve V1 whose grid is made negative by the voltage across Cl while the armature RI is on the " rest " contact a, and by the source of negative potential E1 through contact b, when the voltage on C1 has risen sufficiently to operate the relay. In a preferred modification, Fig. 2, (not shown) the relay coil X is in the anode circuit of a valve whose grid is made negative by the potential across R1.
Patent GB-950496-A (GB)
Title: Well casing hanger apparatus
IPC: E21B33/043
Filed: 1961-08-08
Abstract: 950,496. Boreholes &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug. 8,1961 [Aug. 10, 1960], No. 28666/61. Drawings to Specification. Heading E1F. The subject matter of this Specification is included in Specification 950,495 but the claims are directed to a well casing hangar. Specification 948,322 also is referred to.
Patent GB-225846-A (GB)
Title: Means for and methods of operating internal combustion engines
IPC: F02B1/00
Filed: 1924-11-29
Abstract: 225,846. Madler, F. L. Dec. 3, 1923, [Convention date]. Spray carburettors.-A fuel charge is prepared in a pump 24 and delivered into air or weak mixture compressed in the working cylinder 1. The fuel charge is formed in a carburettor 41 with an adjustable choke tube 43. A valve 52 controls the admission of primary air from the pipe 56 and of exhaust from the pipe 55, the valve determining the relative amounts of the air and exhaust. A secondary supply of air on the pump side of the fuel jet 42 is controlled by a valve 46, to determine the amount of fuel in each charge. The two valves 46, 52 may be worked together. The Specification, as open to inspection under Sect. 91 (3) (a) states that exhaust can be admitted by the valve 46. This subject-matter does not appear in the Specification as accepted.
Patent GB-280197-A (GB)
Title: Electrolyte for lead accumulators
IPC: H01M10/08
Filed: 1927-10-28
Abstract: 280,197. Kugel, M. Nov. 6, 1926, [Convention date]. Electrolytes; electrodes.-The electrolyte of an accumulator consists of sulphuric acid containing a small quantity of phosphoric acid which may be introduced directly into the electrolyte or added to the lead oxide to form the paste for the electrodes. The phosphoric acid may also be introduced into the electrolyte by using lead phosphate alone or mixed with lead oxides to form the active material. Ortho, meta or pyrophosphoric acid may be used.