baber/WOPTO huggingface dataset:
Patent GB-1103275-A (GB)
Title: Testing the stability of suspensions in liquid media
Inventor: KAYE RONALD COCKCROFT
IPC: G01N27/22
Filed: 1964-02-05
Abstract: 1,103,275. Testing stability of suspensions in liquid media, electrically. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 3, 1965 [Feb. 5, 1964], No.4885/64. Heading G1N. The stability of a suspension of a substance in a liquid medium which is not highly conductive (e.g. an emulsion of oil in water) is determined by the change in the capacitance of a capacitor of which the emulsion forms the dielectric. The dielectric constant of the substance should differ appreciably from that of the liquid medium. As shown a capacitor cell comprises coaxially disposed tubular electrodes 6, 7, formed by silver deposition on two coaxial cylindrical glass walls which define an annular chamber 4 to which the test emulsion is admitted by an entry 5. The capacitor cell is connected in parallel with a variable capacitor C18 in the tuning circuit of an oscillator 16, the output of which together with the output of a stable crystal oscillator 17 is fed to a mixer. The mixer output is connected to a loudspeaker or visual indicator 20. With the space between electrodes completely filled with emulsion C18 is adjusted until the two oscillator frequencies are equal and the mixer output is zero. As the emulsion gradually separates with time into its constituents causing a change in the cell capacitance and consequent change in frequency of oscillator 16, an output signal is produced by the loudspeaker. The amount of adjustment of C18 over a measured period of time, necessary to silence the speaker, gives a measure of the stability of the emulsion. For a suspension of solid particles in a liquid the upper or lower part of the depth may be between the electrodes dependent on whether the dielectric constant of the solid particles is respectively higher or lower than that of the liquid.
Patent GB-490241-A (GB)
Title: Pleatable draw-tape and hooks to be used therewith for suspending curtains and the like
IPC: A47H13/16
Filed: 1937-02-19
Abstract: 490,241. Curtain tapes. JOHNSON, F. D. Feb. 19, 1937, No. 4972. Drawings to Specification. [Class 142 (iv)] [Also in Group XIV] The draw-tape for use in suspending a curtain is thickened by weaving on the ridges of the pleats to provide additional material to aid in forming a rib thereon when the curtain hook is positioned on the ridge.
Patent GB-176344-A (GB)
Title: Improved process for the manufacture of hyposulphites
IPC: C01B17/66
Filed: 1922-02-20
Abstract: Hyposulphites are produced by reducing bisulphites by means of an amalgam such as sodium amalgam in the presence of an acid such as sulphurous sulphuric, or hydrochloric acid.  The quantity of acid added is equivalent to the metal dissolved in the mercury. The amalgam may be produced electrolytically and led by a siphon to a closed vessel containing the bisulphite solution, the mercury being returned to the electrolytic cell.
Patent GB-250717-A (GB)
Title: Apparatus for registering the angular movement and oscillations of shafts
IPC: G06M1/04
Filed: 1925-02-24
Abstract: 250,717. Yates, J. A., and Smith, W. A. Feb. 24, 1925. Counting-apparatus.-Apparatus for summing up the angular motion of a shaft and the number of times it reverses and applicable for example to testing by bending, comprises a counter g<2>, driven in the same direction irrespective of the changes in direction of the shaft a, and a second counter g operated at each oscillation of a toothed member or lever in trailing engagement with a gear wheel a<1> attached to the shaft. In one form the counter g<2> is provided with two receiving pinions m, m<1> engaging respectively with a spur wheel d<1> and through an intermediate wheel m<2> with another spur wheel d<2>, both these wheels d', d<2> being loose on the primary shaft a and driven by it through oppositely acting pawl and ratchet mechanism. The counter g is actuated by one or other of two pawls n<1>, Fig. 4, carried by loosely pivoted quadrants o and engaging a ratchet wheel n attached to the units wheel. To one of the quadrants is secured a single-toothed disc p adapted to be swung to one side or the other by the gear wheel a<1>. The quadrants are connected by links q to a spring-centralized bell-crank r. In place of the disc p, a lever may engage the wheel a<1> and be connected at opposite sides of its pivot with pawls for driving the counter g. Other forms of one-way drive for the revolutions counter suggested are (1) a bevel wheel engaging two freewheel bevel pinions on the driving shaft and (2) a pair of spur pinions engaging each other and, respectively, a free-wheel gear on the driving shaft.
Patent GB-621418-A (GB)
Title: Improvements relating to multi-stage axial compressors and turbines
IPC: F01D5/06
Filed: 1947-02-20
Abstract: 621,418. Turbine and compressor rotors. LOMBARD, A. A., VINCENT, K. I. C., and MORLEY, F. W. W. Feb. 20, 1947, No. 5058. [Class 110(iii)] The rotor of an axial flow air-compressor or turbine comprises a number of relatively thin blade-carrying discs 12 located on a hollow shaft 10 by cylindrical bosses having close cylindrical engagement with the shaft at their ends 19 and a spline-tooth engagement at their ends 18. The blade-carrying rims 16 abut against one another or against spacer rings 23. The assembly is clamped together between a more rigid blade-carrying disc 13 and an end disc 15 by means of a shoulder 26 and a nut 27 on the shaft. The discs 12 of the early stages are made of a light alloy and the discs engage the inner side of spigots on the ends of the spacer rings 23. The ends 19 of the bosses are prestrained by the insertion of steel bushes 20. The discs 12 of the late stages are made of steel, their rims engage the inner side of one spigot of the spacer rings and the outer side of the other and the ends 19 engage the shaft directly. In order to determine the tension in the shaft when the assembly is tightened up by the nut 27, the shaft is made with a shoulder 32 against which the nut is tightened and a shouldered bush 31 of selected breadth is inserted between the part 30 and the end of the end 19 of the boss of the disc 13. The blades may be secured to the rotors as described in Specification 621,315.
Patent GB-1021786-A (GB)
Title: Improvements in or relating to electro-hydraulic crushing techniques
Inventor: MAROUDAS NICHOLAS GEORGE
IPC: G10K15/06
Filed: 1964-02-06
Abstract: 1,021,786. Crushing. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 27, 1965 [Feb. 6, 1964], No. 5070/64. Heading B2A. A method of crushing comprises discharging all the energy stored in a capacitor through a spark discharge gap in a liquid medium in a time of not more than about one microsecond. Preferably, at least 85% of the energy is discharged in a time of 0À5 microsecond. Apparatus for carrying out the method comprises a spark discharge gap defined by electrodes 4, 10 immersed in a liquid medium contained in a vessel 1 provided with an insulating lining 2, the electrodes being connected by a gas spark gap, defined by electrodes 11, 15, to opposite plates 7, 13 of at least one capacitor, the plate 13 being connected to a source of high potential and the circuit comprising the spark gaps and the capacitor having an inductance of not more than 0À1 microhenries. The electrodes 11, 15 are surrounded by a metal tube 6, having an insulating lining 8, formed integrally with the tube I and with the plate 7 of the capacitor so that the parts 1, 6 and 7 are electrically connected together and to earth, the electrode 4 being the earthed electrode. The crushing vessel may be in the form of an annulus. More than one crushing vessel may be provided.
Patent GB-846664-A (GB)
Title: Impression cylinder pressure adjusting mechanism
IPC: B41F3/80
Filed: 1959-02-13
Abstract: 846,664. Cylirder printing &c., machines. MIEHLE-GOSS-DEXTER Inc. Feb. 13, 1959 [Feb. 24, 1958], No. 5082/59. Class 100(2) In a printing, die-cutting, or creasing press having an impression cylinder 10 rotatably mounted on the machine frame 17 for bodily movement between operative and inoperative positions in relation to a reciprocating type &c. bed 11, means for adjusting the pressure between the bed and the cylinder in the operative position of the cylinder comprises a member 36 mounted for partial rotation in the machine frame, an eccentric surface on the member which varies the operative position of the cylinder when the member is rotated, and means, such as a pair of adjusting screws 41, 42 and nuts, whereby the member 36 can be rotated manually. As shown, the member 36 exerts pressure on an intermediate block 22 located over a second eccentric 21, and the latter exerts pressure on the slidable bearing 16 of the cylinder 10 through an intermediate block 23. The bearing 16 is urged upwardly by springs 19. The tripping of the cylinder 10 is effected by an actuating lever 28 pivoted to an arm 27 which is integral with the eccentric 21. An indicator 54 secured to the pressure-adjusting eccentric 36 co-operates with a fixed scale 55. The above arrangements are duplicated at the opposite end of the cylinder 10. Manual manipulation of nuts 46, 47 on the screws 41, 42 causes the eccentric member 36 to effect vertical displacement of the block 22, which in turn lowers or raises the axis of rotation of the eccentric 21, whereby to increase or decrease the pressure-relation between the bed and cylinder in the impression position.
Patent GB-304058-A (GB)
Title: Improvements in or relating to protecting glasses and globes for electric lamps
IPC: F21L4/00
Filed: 1928-02-18
Abstract: 304,058. Rosenkaimer, P. Feb. 18, 1928. Battery lamps.- In a portable electric miners' lamp the supporting hook l is attached directly by an eye bolt i to the globe h of glass reinforced bv embedded wire network c, the usual uprights being dispensed with. The network extends into the rim h<1> of the globe which is held in a closure member e for the base portion d containing the accumulator. The bolt i passes through a hole h<2> in the globe and is secured by a nut m and a lock nut n the lateral surface n' of which is made conical and serves as a reflector. A shield o protects the globe from falling stones &c. The globe may be rendered matt to prevent the reinforcing network c from throwing a shadow.
Patent GB-1016531-A (GB)
Title: Improvements in or relating to fabric linking machines
Inventor: MATTHEWS DENIS
IPC: D05B7/00
Filed: 1962-02-10
Abstract: 1,016,531. Sewing machines. MATTHEWS & BIRKHAMSHAW Ltd. Feb. 5, 1963 [Feb. 10,1962], No. 5194/62. Heading D1G. A linking machine has a hooked needle which gradually tapers to a point. In Fig. 3 a rotary dial 1 carrying points 1a is driven from a motor 5 via belt gearing 9, worm gearing 10, 11 and a shaft 14. A curved latch needle 16, which moves outwardly from within the dial, is carried by an arm 12 pivoted at 13. Arm 12 is oscillated via a connecting rod 15 from an eccentric 14 driven by gearing 10. Needle 16 passes through an aperture 28b in a fixed bar 28 to co-operate with a threaded looper 18 mounted eccentrically on a pivoted disc 19 which is oscillated via a connecting rod 26 from an eccentric 25 on shaft 14. In Fig. 9 a curved, hooked needle 116 is carried by the lower arm of a lever 129, the upper arm of which is connected by a link 131 to a pivoted plate 132 which is oscillated via a connecting rod 133 from an eccentric 134 on a driven shaft 135. Lever 129 is slidably journalled on a pin 130 and is biased. There along by a spring 136 towards an abutment 137 on pin 130. A wedge member 138 slidable transversely on pin 130 and interposed between lever 129 and abutment 137, is connected by a link 140 to one arm of a lever 141, the other arm of which carries a follower roller 142 co-operating with a cam 143 on shaft 135. Needle 116 thereby receives a sideways swinging motion. The pivoted and threaded looper 118 is oscillated via a linkage 145, 146 from an eccentric 147 on shaft 135. The sewn work F is removed from the points la by the inclined edge 158a of a member 158, Fig. 11, carried by an arm on a shaft pivoted in a bracket 160 and carrying a second arm connected to a rod biased by a spring 163 to raise member 158 to the operative position. An upward pull on a knob 161a serves to lower member 158.
Patent GB-215862-A (GB)
Title: Improvements in or relating to load lifting and transporting devices for use on motor vehicles
IPC: B60P1/54
Filed: 1923-02-22
Abstract: 215,862. Lawrence, V. W. J. K. Feb. 22, 1923. Driving auxiliary parts, adapting vehicle driving-gear for.-In a slueing jib crane with hoisting drum driven from the engine of the vehicle, the drum 6 is mounted above the bend formed by the vertical portion A of the slueing part and its jib arm 1, so that the slueing axis intersects the axis of the drum at right angles. The drum is driven by gearing 8, 9 from a vertical shaft 10 in the slueing axis. The shaft 10 is driven from the engine shaft by gearing 12, 13 and a countershaft 14 provided with flexible couplings 15 and a clutch 20. The crane may be movable longitudinally on the vehicle, the worm 13 being adjustable on the countershaft.
Patent GB-312294-A (GB)
Title: A purifier for the exhaust gases of internal-combustion engines
IPC: F01N13/08
Filed: 1928-02-20
Abstract: 312,294. Bird, R. A. Feb. 20, 1928. Exhaust, dealing with; silencers.-Exhaust gases are purified by being passed through a casing 1 containing gas-absorbing material such as activated charcoal with or without the addition of potassium or sodium permanganate. The gas is distributed by an inclined perforated plate 3, and' a filtering pad 5 is provided near the outlet end. The cover plate 2 is readily removable to permit of removing and inserting the purifying material. The gases may be passed through a silencer either before or after passing through the purifier or, in a modification, a valve may be provided to direct the gases either through the purifier or the silencer. According to the Provisional Specification, the gases are distributed by a small fan. Specification 24349/99, [Class 122, Steam engines], is referred to.
Patent GB-569656-A (GB)
Title: A process for the production of halogenated organic hydroxy compounds
IPC: C25B3/06
Filed: 1941-04-24
Abstract: 569,656. Preparation of halogenated organic hydroxy compounds. FIFE, J. G. (Shell Development Co.). April 24, 1941, No. 5303. [Class 41] Halogenated organic hydroxy compounds, such as glycerol mono- and di-chlorhydrine, are produced by the electrolysis of an aqueous solution of an unsaturated aliphatic or alicyclic alcohol such as allyl alcohol, and a hydrogen halide such as hydrochloric acid. The concentration of the alcohol in the solution is mainta,ined at from .01 to .5 per cent by weight by addition of the alcohol to the solution at substantially the rate at which it is consumed in the reaction, and the concentration of the hydrogen halide is between 0.1 to 5 of normal. The electrolysis may be effected in any type of chlorination cell having electrodes of carbon, graphite, platinum, &c., a diaphragm being unnecessary. After some use, the anodes tend to become poisoned," reducing the efficiency of the cell; this is overcome by periodically reversing the current.
Patent GB-1311828-A (GB)
Title: Method and apparatus for wrapping a load with heatshrinkable film
IPC: B29C35/04
Filed: 1972-02-04
Abstract: 1311828 Shrink wrapping INGENIORFIRMAET FERNHOLT & GIERTSEN AS 4 Feb 1972 [10 Feb 1971] 5319/72 Heading B8C A load 6 is wrapped in heat shrinkable film in a shrink tunnel 2 by providing the load with a heat shrinkable envelope, withdrawing air from the envelope and from the tunnel space at the lower edges of the load, heating the withdrawn air and recirculating the heated air in the tunnel over the outside of the envelope. As shown, the load, enclosed in a heat shrinkable wrapper is carried on a pallet 34 supported on a hot air and fan assembly 4 in a recess of a floor 8. The assembly 4 includes a central duct 12 housing heaters 28 and a fan 2 and laterally expanding ducts 16 which communicate through opening 18 with the tunnel 12 the arrangement being such that air evacuated by the fan from the envelope around the load is heated and recirculated through the ducts 16 and around the outside of the envelope to effect shrinking thereof on to the load 6. The tunnel 2 may be of known construction and provided with curtains 14 covering end openings 9.
Patent GB-929609-A (GB)
Title: A ground reservoir for the storage of liquefied gases at a low temperature
Inventor: NACHSHEN MAURICE
IPC: F17C3/00
Filed: 1962-02-12
Abstract: 929,609. Soil stabilisation. CONCH INTERNATIONAL METHANE Ltd. Feb. 12, 1962, No. 5325/62. Class 68 (1). [Also in Group XXVIII] Freezing of the water-bearing earth surrounding a plurality of shafts 2 intended for stoning liquefied gases (see Group XXVIII) is effected by filling the shafts with water or drilling mud, introducing double pipes, and passing refrigerant therethrough until a sufficient layer of frozen earth is obtained and finally passing steam through the double pipes to thaw any ice formed in the liquid with which the shafts are filled. In a modification the shafts are filled with refrigerant which is afterwards withdrawn. Each shaft is lined with concrete, aluminium or steel. Specification 894,762 is referred to.
Patent GB-576580-A (GB)
Title: Improvements in oil or liquid filters or cleaners
IPC: B01D29/21
Filed: 1944-03-24
Abstract: 576,580. Filters. TECALEMIT, Ltd., and LE CLAIRE, C. C. S. March 24, 1944, No. 5515. [Class 46] A filter for oil or other liquids is provided at the bottom with a spring-pressed drainage valve which can be opened by means located at the top of the filter, and within this means there is mounted valve means operable to permit entrapped air to be vented to atmosphere. In the construction shown a container 1 with an inlet 2 for unfiltered oil and an outlet 4 is provided with a plate 8 from which are suspended filter elements 9 consisting each of a perforated tube with yarn or fabric wound thereon between discs 14, 15. A cover 16 of transparent material, screwed into the container, is apertured to receive a stem 42 which is secured to a tube 26. The end of the tube is provided with a valve 29 engaging a valve seat 28 under pressure of a spring 46. By operation of a knob 43 the valve may be withdrawn allowing sludge to flow out through radial slits 33 in a rubber or like cap 32. The stem 42 is hollow and is formed with openings 66, 67 which can be put into communication with each other when a spring-pressed valve 59 is depressed by means of a push button 60, whereby entrapped air in the cover 16 is enabled to escape. The cover 16 is formed with a rim 21 providing a gallery 20 which contains hollow rubber balls 23 or an inflated tube, for absorbing any impact that may result due to a change of volume in the liquidcirculating system. The balls are held in place by a plate 24 engaged by resilient arms 55 on a multi-leaf spring 25. Other arms on the spring press the plate 8 against a sealing ring 7. The Provisional Specification refers to Specification 572,996.
Patent GB-397887-A (GB)
Title: Improvements in and relating to electric lamps
IPC: H05B31/00
Filed: 1932-02-24
Abstract: 397,887. Electric lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Strickland, R. F.; 2227, Noble Road, Cleveland Heights, Ohio, U.S.A.) Feb. 24, 1932, No. 5558. Convention date, Feb. 25, 1931. [Class 39 (i).] In lamps such as those described in Specification 317,832, [Class 39 (i), Electric lamps, Arc, &c.], in which a sealed bulb 10 filled with inert gas or vapour contains current leads 11, 12, arc electrodes 19, 20 and a filament 18 across the leads 11, 12 so that, at starting, the filament glows first and the arc then strikes, the electrodes 19, 20 are formed as coils and parts of the filament 18 adjacent its ends are disposed within these coils, the difference between the starting and operating voltages being thus reduced. The coils 19, 20 may be of tungsten and the leads 11, 12 of nickel with tungsten parts sealed into the stem 13. The filament 18 is a tungsten coil extending towards a pool 21 of vaporizable metal such as mercury, and the bulb 10 is of borosilicate glass transmitting ultra - violet rays. In a modification, the filament is curved upwardly away from the pool 21 and is supported at its centre by an anchor from the stem 13. The lamp may be supplied by a transformer with a drooping characteristic.
Patent GB-608021-A (GB)
Title: Improvements in and relating to flux-coated welding electrodes
IPC: B23K35/36
Filed: 1946-02-22
Abstract: In a flux-coated welding electrode the flux contains as a binding agent a silicone condensation product such as an alkyl-aryl silicone, an aroxy-silicone, or a methyl or ethyl silicone.  The electrode may be made by applying, by extrusion, a mixture containing the flux ingredients and one or more silicols or partially-condensed silicones and then heating the coated electrode until the condensation of the silicol or partially-condensed silicone is complete.  Alternatively, the coating may be applied by dipping.  In an example, the flux coating comprises 40-60 parts by weight of rutile, 8-15 of ferro-manganese, 4-12 of limestone, 6-12 of china clay, 6-12 of iron ore and 6-24 of felspar with a binder of the silicone condensation product.ALSO:In a flux-coated welding electrode the flux contains as a binding agent a silicone condensation product such as an alkyl-aryl silicone, an aroxy-silicone; or a methyl or ethyl silicone.  The electrode may be made by applying, by extrusion, a mixture containing the flux ingredients and one or more silicols or partially condensed silicones and then heating the coated electrode until the condensation of the silicol or partially condensed silicone, is complete.  Alternatively the coating may be applied by dipping.  In an example, the flux coating comprises 40-60 parts by weight of rutile, 8-15 of ferrous-manganese, 4-12 of limestone, 6-12 of china clay, 6-12 of iron ore and 6-24 of felspar with a binder of the silicone condensation product.
Patent GB-667483-A (GB)
Title: Improvements in waterproof covers for babies' napkins
IPC: A41B13/04
Filed: 1950-03-06
Abstract: 667,483. Napkin supports. MILLER, L. A. March 6, 1950, No. 5602/50. Class 141. A waterproof napkin support comprises a body part formed of a sheet 2 of plastic material with arcuate side edges 3 and its ends united with two transverse pockets 6 to engage the napkin, the corners being provided with fastening means to secure the support in position and the body part being moulded with a dished portion 12 to trap moisture. The edges 3 may be formed with tubular hems 4 enclosing elastic cords 5 and the pockets 6 may be provided with elastic 11. The fastening means may comprise snap-button elements 9, 10 provided on fabric flaps 8.
Patent GB-1166224-A (GB)
Title: Acrylonitrile Copolymers
Inventor: SZITA JENO
IPC: C08F220/34
Filed: 1968-02-05
Abstract: 1,166,224. Acrylic and methacrylic hydrazides. FARBENFABRIKEN BAYER A.G. 5 Feb., 1968 [3 Feb., 1967], No. 5622/68. Heading C2C. [Also in Division C3] Unsaturated hydrazides of the formula R-CO-NH-NR 1 R 2  wherein R 1  and R 2  each represents alkyl, or R 1  and R 2  together with the N atom to which they are attached form a heterocyclic ring optionally containing a further hetero atom (e.g. O), and R represents a CH 2  = CH-, CH 2  = C(CH 3 )- or a (meth)acrylamidophenyl radical, are prepared by reacting acrylic or methacrylic acid chloride or an aromatic nitro carboxylic acid chloride with an N,N-disubstituted hydrazine and, where the aromatic acid chloride is used, the nitro group is reduced and then reacted with (meth)acrylic acid chloride. The hydrazides may be quaternized by treatment with a compound of the formula R 3 Y, where R 3  is C 1 -C 5  alkyl and Y is an alkyl sulphate or a sulphonate anion. An example illustrates the preparation of N methacryloyl- N<SP>1</SP>,N<SP>1</SP> - dimethyl - hydrazide which is subsequently quaternized with methyl p-toluene sulphonate. The reactions are carried out in the presence of polymerization inhibitors.