baber/WOPTO huggingface dataset:
Patent GB-1455489-A (GB)
Title: Apparatus for checking the axial position of the sealing edge  of lipped sealing rings
IPC: F16J15/32
Filed: 1974-03-25
Abstract: 1455489 Measuring sealing rings GOETZEWERKE FRIEDRICH GOETZE AG 25 March 1974 [28 March 1973] 13135/74 Heading G1M A shaft sealing ring 2 having a sealing lip 3 is supported on a mounting 1 having air outlet ports 6, 7 supplied from lines 11, 12, a reservoir 8 and a differential pressure gauge 15. If the lip 3 is located outside the tolerance range T shown, then on successive opening and closing of both valves 9, 10 no pressure difference is indicated by the meter 15 and the ring 2 is rejected, the direction of deviation of the lip from the tolerance range being recognizable by the fact that both lines 11, 12 have the same pressure or no pressure. The two outlet ports are preferably circumferentially opposed by 180 degrees in the mounting but still axially spaced, or a number of outlet ports may be provided at a plurality of peripheral points of the ring. In the prior art a transparent ring serves as the inner mounting 1 and is provided with two visible limit value marks, or rings of opaque material can be tested by a mounting having contact devices in the form of light barriers as limit value pick-ups for the tolerance range.
Patent GB-589290-A (GB)
Title: Electric conduit supporting and bonding block
IPC: F16L3/223
Filed: 1944-07-10
Abstract: 589,290. Earth continuity couplings. DEHN, F. B. (Adel Precision Products Corporation). July 10, 1944, No. 13138. [Classes 36 and 38 (i)] Conduits C of varying sizes are clamped between cushions 1, 2 and secured to a structural part D of an aircraft, by bolts 5 and backing members 3, 4, with narrow flexible bonding strips 7, passing through slots in at least one of the cushions 1, 2 to ensure electrical continuity between the conduits and the metallic structure of the aircraft. One end of the strip 7 may extend into a counterbore 10 in the cushion, making flatwise contact with the bolts 5. One strip 7 may extend over two conduit channels, both ends entering counterbores, Fig. 4 (not shown). Specification 574,224 is referred to.
Patent GB-1389859-A (GB)
Title: Salts of fluorinated amino acid with optically active acids or bases
IPC: C07C17/12
Filed: 1972-06-13
Abstract: 1389859 Optically active salts of 3-fluoro-D- alanine MERCK & CO Inc 13 June 1972 [18 June 1971 3 Feb 1972] 13200/74 Divided out of 1389858 Heading C2C Novel salts of 3-fluoro-D-alanine or its deutero analogues, and carboxyl-protected or amino-protected derivatives thereof, with optically active acids or bases are obtained by conventional methods by treating a DL-racemate of 3-fluoro-alanine, or appropriate derivative, with an optically active acid or base and fractionally separating the mixture of salts. The separated optically active salt of 3-fluoro-D- alanine (or protected derivative) may be treated with strong base or acid, as appropriate, to liberate the free 3-fluoro-D-alanine, deutero analogue or carboxy- or amino-protected derivative from the salt.
Patent GB-1001663-A (GB)
Title: Compositions containing polyvinyl mixed acetals
IPC: C08F8/28
Filed: 1962-04-05
Abstract: Stoving lacquers comprise an ethoxyline resin and/or a phenol/formaldehyde, cresol/formaldehyde, urea/formaldehyde or melamine/formaldehyde resin and a polyvinyl mixed acetal obtained by condensing polyvinyl alcohol with a mixture of butyraldehyde and acetaldehyde in a molar ratio of 0.1 to 2.  The ethoxyline resin may be a condensate of diphenylol propane and epichlorhydrin.  The aminoplasts may be etherified, e.g. with butanol.  Examples describe stoving lacquers comprising polyvinyl mixed acetals and (1) ethoxyline resin and ethylene glycol, (2) phenol/formaldehyde resin and ethanol, (3) ethoxyline resin, phenol/formaldehyde resin, ethylene glycol, butylene glycol and ethanol, (4) urea/formaldehyde resin, ethanol, ethyl acetate and butanol and (5) ethoxyline resin, melamine/formaldehyde resin, ethylene glycol, methyl isobutyl ketone and butanol.ALSO:Metals may be coated with stoving lacquers comprising an ethoxyline resin and/or a phenol/formaldehyde, cresol/formaldehyde, urea/formaldehyde or melamine/formaldehyde resin and a polyvinyl mixed acetal obtained by condensing polyvinyl alcohol with a mixture of butyraldehyde and acetaldehyde in a molar ratio of 0,1 : 2.  The ethoxyline resin may be a diphenylol propane/epichlorhydrin condensate.  The aminoplasts may be etherified, e.g. with butanol.  In examples, iron sheets suitable for the manufacture of tin cans for foodstuffs are coated with stoving lacquers comprising polyvinyl mixed acetals and (1) ethoxyline resin and ethylene glycol, (2) phenol/formaldehyde resin and ethanol, (3) ethoxyline resin, phenol/formaldehyde resin, ethylene glycol, butylene glycol and ethanol, (4) urea/formaldehyde resin, ethanol, ethyl acetate and butanol, and (5) ethoxyline resin, melamine/formaldehyde resin, ethylene glycol, methyl isobutyl ketone and butanol.
Patent GB-831826-A (GB)
Title: A pressure relief valve for rotary compressors
IPC: F04C28/00
Filed: 1957-04-26
Abstract: 831,826. Rotary compressors. NICHOLS. T. W. Feb. 21, 1958 [April 20, 1957], No. 13346/57. Class 110 (2). A valve 3 is acted upon underneath by pressure from an air receiver through a duct 6. and on top by pressure from the compressor delivery through a duct 7. When the compressor stops, pressure at the delivery drops and the receiver pressure lifts the valve, venting the receiver to atmosphere by way of ports 5. An oil filter may be fitted in the compressor delivery. The piston 2 may be replaced by a ball, diaphragm or bellows.
Patent GB-569428-A (GB)
Title: Improvements in percussive drilling tools
IPC: E21B17/04
Filed: 1943-08-17
Abstract: 569,428. Percussive drills. RIPBITS, Ltd. (Griffiths, H. M.). Aug. 17, 1943, No. 13367. Drawings to Specification. [Class 124] In a percussive drill comprising a drill bit provided with a taper socket of less depth than diameter to receive a taper plug on the end of a drill rod, as described in Specification 519,818, the plug has a greater degree of taper than the socket and is an oversize fit therefor throughout its engagement therewith so as to effect an expansion of the socket such that at-the orifice thereof said expansion will be greater than the expansion at the area of the socket immediately around the extremity of the plug. Suitable dimensions are given in the Specification.
Patent GB-133740-A (GB)
IPC: B62D61/08
Abstract: 133,740. Webb, W. A. Oct. 7, 1918. Frame components, sections and forms of; tubular and like constructions.-The frame of a three-wheeled two-track motor or other vehicle comprises members A', A<2>, A<3>, d which form major and minor triangles A, B apex to apex, the base A<1> of the major triangle carrying the wheels C, C', and the minor triangle the front or rear steering-wheel E. The members may be of tubular metal, or may consist of double wooden beams with spacing-blocks. The engine is supported by two tubular cross-members e, f.
Patent GB-592769-A (GB)
Title: Improvements in servo motors applicable, for example, to fuel systems for combustionturbines
Filed: 1945-05-28
Abstract: 592,769. Fluid-pressure servomotorcontrol systems. HOBSON (AIRCRAFT & MOTOR) COMPONENTS, Ltd., H. M., and GREENLAND, L. S. May 28, 1945, No. 13374. [Class 135] A hydraulic servomotor, suitable for controlling the fuel supply valve 12 of a combustion turbine engine, comprises a servo-member such as the piston 15 in a housing or cylinder 19 having a liquid pressure inlet conduit 20 and a return conduit 21 to the fuel pump 11, a restricted flow connection between the two ends of the housing, e.g. the aperture 22, a spring 23 for balancing the servo-member against the pressure difference acting thereon, a pressure or temperature responsive-device 16 for operating a valve 25 for controlling the flow through one of the conduits, and a follow-up lever 26 connecting the servo-member and the device 16. As shown, a stack of capsules 16 responsive to the air intake pressure in the pipe 18 operates the valve 25 in the return conduit. In modifications, the piston may be replaced by a vane and the capsules by a Bourdon tube connected to a thermometer bulb in the air intake. Specification 376,341 is referred to.
Patent GB-1460117-A (GB)
Title: Current amplifier
IPC: H03F3/343
Filed: 1974-03-26
Abstract: 1460117 Automatic current regulator RCA CORPORATION 26 Nov 1974 [6 April 1973] 13384/74 Heading G3X [Also in Division H3]  A current mirror basically comprises bi-polar or field-effect transistors arranged between terminals 101, 102, 103 and inter-connected effectively as shown. Emitter followers may be added to various of the coupling paths, Figs. 5-8 (not shown) and compound transistor arrangements may replace the individual transistors. If instead of the current supply and output load shown there is substituted a direct connection from a terminal to 102 and a connection from the terminal to 101 via a resistor, the circuit between the terminal and 103 constitutes a current regulator, Figs. 7 and 8 (not shown).
Patent GB-558872-A (GB)
Title: Improvements in or relating to solid fuels
IPC: C10L11/04
Filed: 1942-09-29
Abstract: 558,872. Solid fueL PROMEDICO PRODUCTS, Ltd., and NEUMANN, S. Sept. 29, 1942, No. 13683. [Class 50] A solid fuel, conveniently provided in tablet form, is made from hexamethylenetetramine paraformaldehyde or metaldehyde alone or mixed impregnated with a wax. The wax may be melted and the other constituent added, or a tablet made of the. metaldehyde or other constituent with or without the wax and coated with a layer of the molten wax by dipping. The solid fuel may contain from 1 to 20 per cent of the wax but 5 per cent is found to yield the best results. Suitable waxes are paraffin wax, ceresine wax, montan wax, beeswax, carnauba wax, or palm kernel wax. Alternatively, the fuel may be made by pressing together the constituents in flake form. Colouring agents, perfumes and the like may be added. Specifications 572,765 and 578,331 are referred to.
Patent GB-1216554-A (GB)
Title: Ion source for a mass spectrometer
IPC: H01J49/14
Filed: 1968-03-21
Abstract: 1,216,554. Ion sources. PERKIN-ELMER CORP. 21 March, 1968 [11 April, 1967], No. 13736/68. Heading H1D. A mass spectrometer ion source of the electron beam bombardment type comprises a cathode 36, Fig. 2, an anode 38 and a pair of bar magnet assemblies 20, 16, 22 and 24, 18, 26 on either side and parallel with the electron beam axis, one of the members 16, 18 at least being provided with a passage 28, 30 for a sample entry capillary tube 12, 14. With two sample entry capillary tubes, one, 12, is used for the introduction of gas samples and the other, 14, for the introduction of volatilized solid samples. The members 16, 18 are cold-rolled steel inserts between the permanent magnets 20, 22 and 24, 26, respectively. The ion exit slit is shown at 40. The magnets 20, 22, 24, 26 and the inserts 16, 18 as well as polepieces 32, 34 are spot welded to straps 84, 86. Stainless steel shims 88, 90 and 92, 94, each two-thousandths of an inch thick, are located between the magnets 20, 22, 24, 26 and the polepieces 32, 34. The cathode 36 and anode 38 are mounted on ceramic headers set within cylindrical holes in the polepieces 32, 34 and held by screws 98, 100, respectively. The cathode 36 comprises a hairpin filament 46, Fig. 6, or alternatively a frustoconical coil, mounted on a ceramic header 49, the header being provided with an annular cut 42 so as to form an annular skirt 44. The skirt 44 provides an annular shadow, as viewed from the cathode, free of contaminants. The cathode is surrounded by a cylindrical grid electrode 52 supported on leads 68 which pass through a recess channel 70 in the header 49. The grid electrode 52 may be a frusto-conical coil. The ceramic header for the anode 38, Fig. 2, is similar in construction (Fig. 7). The anode 38 is heated by heater 108 to reduce dielectric contamination. In addition the anode may be of solid gold or gold-nickel laminate.
Patent GB-539734-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P5/685
Filed: 1940-09-02
Abstract: 539,734. Motor control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 2, 1940, No. 13750. Convention date, Sept. 1, 1939. [Class 38 (iii)] To avoid excessive wheel slippage in a traction system comprising series-connected motors 10, 11, 12, 13, pairs of which are on different axles, an impedance comprising elements 30, 31, 32 normally short-circuited by switches 33, 34, 35 is connected in series with the motors, and a relay 36 responsive to difference in speed between the pairs of motors is arranged to cause opening of the switches to insert impedance in circuit. The relay 36 comprises a restrained shaded pole induction motor and its operating winding is connected between the mid-point on a reactor 40 and a point normally at the same potential, i.e. the point of interconnection of the two pairs of motors. The impedance includes resistive and inductive portions in order that current limitation may be effected at low motor speeds when power factor is low and also at high speeds and correspondingly high power factor. Closure of the switches 33, 34. 35 in sequence is provided for by copper jackets of different dimensions on two of the magnet cores.
Patent GB-732892-A (GB)
Title: A froth flotation cell
Inventor: WALLACE WALTER MAY
IPC: B03D1/16
Filed: 1950-06-01
Abstract: 732,892. Froth flotation apparatus. AUTOMATIC COAL CLEANING CO., Ltd. June 14, 1951 [June 1, 1950], No. 13782/50. Class 82 (2). A froth flotation cell comprises at least one pair of opposed impellers arranged to cause opposing horizontal liquid streams to be forced together to create turbulence, the cell also having on one side a tailings removal pipe, on the other side a froth removal pipe, and on both sides pipes for introducing materials through the respective impellers, the entire surface of the cell being free for the collection of froth. Each cell a, of a series, comprises a tailings container c to which tailings pass over an adjustable weir p and which is connected by a pipe b to the housing g of an impeller f of an adjacent cell: a froth container o is similarly connected by a pipe b<SP>1</SP> to the housing g of the opposite impeller f of the other adjacent cell. The impellers, of opposite hand, are mounted on the horizontal shaft d or on separate shafts. The cell also comprises perforated plates j and a froth remover k, l, skimming froth into the container o, or for final removal into another container q when a plate p<SP>1</SP> is in the closed position. Each housing g has apertures y, which in the case of one housing communicate through a pipe x with apertures w for the removal of settlings from the cell corners.
Patent GB-138893-A (GB)
Abstract: 138,893. Hull, M. V. June 21, 1918, [Convention date]. Cosmetics.-Face powder is mixed with cold cream or the like to cause it to adhere to the skin and to produce an emollient. In an example, 5 parts by weight of a powder consisting of 77 parts of powdered talc, 6 parts of precipitated chalk, and 17 parts of zinc oxide are thoroughly incorporated with 4 parts by weight of a cream consisting of 8 lb. mineral or cream oil, 1 lb. white beeswax, 2 lb. oeresin wax, and 4 lb. borated water made by dissolving 4 oz. borax in 1 gal. of boiling water. The wax is dissolved in half the oil, and the remainder of the oil and borated water added. Colour and scent may be added.
Patent GB-1498623-A (GB)
Title: Containers
IPC: B65D77/20
Filed: 1975-03-24
Abstract: 1498623 Packaging; container closures STAR ALUMINIUM CO Ltd 24 March 1975 [29 March 1974] 13923/74 Addition to 1361593 Headings B8C and B8D In a container of the type wherein a lid 14 is held on a container body 10 around its entire periphery by a crimped-over rim 15 of the body, the lid 14 comprises a tab 22 connected to a main panel 16 by way of a single fold line 21a, the tab 22 being folded over on to the main panel 16 so that in the region of the tab only two thicknesses of lid material lie under the crimped-over rim 15. The tab 22 provides a manually graspable portion which on being pulled lifts a portion of the crimped-over rim 15 to facilitate lid removal. The container may be of square, rectangular, round or elliptical shape in plan. The lid includes a downturned rim 25, 26, 27 around which the rim 15 is crimped. The lid may be of foil, foil/paper laminate, film/paper laminate or coated paper, and the body may be of aluminium foil.
Patent GB-236025-A (GB)
Title: Improvements in or relating to oil and like tins and containers
IPC: F16N3/04
Filed: 1924-06-10
Abstract: 236,025. Palmer, T. R. June 10, 1924. Sprinkling and like stoppers.-A tin or the like in which oil is put up and sold, of the type comprising a screwed socket and a screwed plug for insertion in the socket, has a tapered elongated spout 1, Figs. 1 and' 2, combined with the plug to adapt the can for use as a lubricating can. In the form shown in Fig. 1 the spout is combined permanently with a plug 2 of the type described in Specification 17862/05. In the form shown in Fig. 2 a tubular neck 6 is provided upon the end of which the spout is screwed. In another modification the spout is secured to an externally threaded sleeve having a flange which is clamped against the bottom of the plug over an aperture therein by means of a nut engaging the sleeve on the opposite side of the bottom to that with which the flange makes contact.
Patent GB-529174-A (GB)
Title: Improvements in and relating to road surface boxes
IPC: E02D29/12
Filed: 1939-05-11
Abstract: 529,174. Hinges. TURNBULL, F. May 11, 1939, No. 14089. [Class 85 (ii)] The cover d of a road surface box is removably hinged to its frame f by a pair of pins a, a<1> which enter sockets e in the frame and can be withdrawn axially to release the cover. They are fixed in position by a block of lead &c. hammered into a recess b in the hinge socket between the adjacent ends of the pins. In another form, a separate block b is used for each pin. Specifications 21603/12, 22573/13 and 26204/13, [all in Class 65 (ii)].
Patent GB-1536571-A (GB)
Title: Semiconductor circuits
IPC: H01L29/78
Filed: 1976-04-07
Abstract: 1536571 Charge transfer devices WESTERN ELECTRIC CO Inc 7 April 1976 [18 April 1975] 14174/76 Heading G4C The signals from a main charge transfer device 100 (Fig. 2) providing a stream of binary valued charge packets and an auxiliary charge transfer device 200 providing a stream of charge packets having a charge level mid-way between the two levels of the first stream are compared (as described in a flip-flop amplifier) to provide a regenerated binary output stream. The system is controlled by a three-phase clock cycle, phase lines # 1 , # 2 , # 3  being turned on during intervals P 1 , P 2 , P 3  respectively. A balanced IGFET preamplifier amplifies the output signal from the two transfer devices clocked into it during time P 2 , P 1 , P 3  and feeds the IGFET flip-flop which is latched into one of its two states at time P 3  to deliver a signal to one of its terminals 510, 520. A buffer amplifier is gated at P 3 , P 2  to sample the state of the flipflop to deliver at P 1  an amplified binary output voltage signal. The preamplifier and buffer amplifier are preset at P 3 , P 2  and P 2 , P 1 , P 3  respectively and the flip-flop is reset at P 1 , P 3 , P 2
Patent GB-574870-A (GB)
Title: Improvements in or relating to electrodes for use in electrolytic cells
IPC: C25B11/14
Filed: 1942-10-09
Abstract: 574,870. Carbon electrodes. GLEAVE, W. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 9, 1942, No. 14182. [Class 41] Electrodes for brine cells, e.g., mercury cathode cells or diaphragm cells, are formed of carbon, preferably graphite, impregnated with a resinous polymer of a lower alkyl ester of acrylic acid, methacrylic acid, or a-chloroacrylic acid. The electrodes, after evacuation of air from the pores, may be steeped in, for instance, monomeric methyl methacrylate containing 0.5 per cent. of benzoyl peroxide as a polymerisation catalyst, drained, and heated to 100-110C., followed by baking in an air oven at 70-80C.
Patent GB-457378-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/00
Filed: 1936-05-19
Abstract: 457,378. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 19, 1936, No. 14204. Convention date, May 20, 1935. [Class 39 (i)] Two electrodes are so arranged that a positive column discharge can occur between them and their fronts are covered with glowresisting material such as finelydivided aluminium whilst their backs are coated with an alkaline earth substance so that a positive column occupies the entire interelectrode path. In one form, Fig. 2, electrodes 5, 8 are provided with aluminium and barium oxide coatings and are apertured, auxiliary starting cathodes 13, 15 being placed opposite the apertures. Each main electrode may be hollow so as to enclose the negative glow, and a mantle of glass, itself fluorescent or coated with a fluorescent material may be arranged between the electrodes, the discharge then passing through this mantle. The filling may consist of À01 to 1 per cent, preferably 1 per cent, mercury and the remainder argon, or at room temperature, of argon at a pressure of 1À5 mm. and mercury at À0013 mm. Neon at 28À5 mm. or 30 mm. may be added. The neon and argon may be wholly or partly replaced by helium and krypton respectively, and the mercury by cadmium, zinc or alkali metals. A mica washer may be arranged around the leads, opaque to resonance radiations and preventing a discharge near the pinch. With a mercuryneon-argon filling a fluorescent coating on the mantle of calcium tungstate may be used. Other fluorescent materials which mav be used are willemite, zinc orthosilicate, calcite, and uranium glass. The envelope itself may have a fluorescent coating or be of a fluorescent glass.
Patent GB-682674-A (GB)
Title: Improvements relating to devices for replacing substantially exhausted by full spinning or doubling tubes or bobbins in yarn consuming textile machines
IPC: B65H63/08
Filed: 1949-05-27
Abstract: 682,674. Unwinding yarn from spinning or doubling tubes or bobbins. MASCHINENFABRIK SCHWEITER AKT.-GES. May 27, 1949 [July 31, 1948], No. 14221/49. Class 120(ii) A device for interrupting the unwinding of spinning or doubling tubes or bobbins while a few turns of yarn remain on them comprises feelers, one 9b bearing on the uncovered portion of the bobbin and the other 13b on the coils, the feeler 13b being contacted by a stop 17 mounted on a lever 16 which releases, in a predetermined position, mechanism to shift the practically unwound bobbin from the winding position. The amount of yarn remaining on each bobbin is the same irrespective of any differences in bobbin diameter, this being achieved by mounting the feeler 9b on a pivot 8 on the machine bed and the feeler 13b on a pivot 12 carried by the feeler 9a. The feelers are biassed towards the bobbin by springs 10, 13a. The lever 16 contacts an adjustable knife-edge 26 on an arm 21 while the bobbin is unwinding, the arm 21 being secured on a shaft 5 controlling the movement of the bobbins. The arm 21 is depressed at intervals by a cam 32 to permit the stop 17 to freely follow the feeler 13b, the movement of which finally enables the lever 16 to swing.clear of the knife edge 26 when a spring 22 raises the arm 21 to actuate the bobbin shifting mechanism (not shown).