baber/WOPTO huggingface dataset:
Patent GB-1178921-A (GB)
Title: Improvements in or relating to Method and Apparatus for Analysis of Surfaces of Heterogeneous, Metallic or Non-Metallic Substances
IPC: G01N23/225
Filed: 1967-02-03
Abstract: 1,178,921. Micro-analyzers. GEBR. BOHLER &CO. A.G. Feb.3, 1967 [Feb. 3, 1966], No.5302/67. Addition to 1,150,577. Heading G1A. To the apparatus shown in Fig. 4 of the parent Specification, a further channel is added, being connected to the output of the micro-analyzer detector. This further channel comprises a gate 11, a counter 12 and a printer 13, in association with a generator 14 of varying frequency pulses e.g. the detector of an X-ray spectrophotometer. This allows the concentration of a particular element, in the sample under investigation, to be determined, by having the X-ray spectrometer view the requisite spectral line of the particular element. In the arrangement of Fig.1, a discriminator 4, is also provided. Using this apparatus, for example in the investigation of a sample for its chromium concentration, the X-ray spectrometer is adjusted to the Cr Ka lines produced with a pure chromium standard. The average pulse rate from the spectrometer generator 14 is determined by using the micro-analyzer to investigate this standard. Then the micro-analyzer and spectrometer are used to investigate the unknown sample, setting the discriminator level(s) as required to enable this, and counts are obtained in counters 6 and 12, the counter 6 counting constant frequency pulses from the oscillator 8 and the counter 12 counting the pulses from the X-ray spectrometer. The gates 5, 11 are opened under control of device 3. The average pulse rate obtained with the sample is compared with that for the standard to evaluate the chromium concentration. As stated in the parent Specification, two or more elements may be investigated at one time to obtain more accurate information about the phase distribution, and similar apparatus as is used in Fig. 5 of the parent Specification is used, supplemented by one or more extra channels receiving varying frequency pulses from an X-ray spectrometer. The gate of the extra channel is connected to the output of the AND-gate (9) of the microanalyzer channels through a smoothing circuit (15), the extra discriminator required in Fig. 1 being dispensed with.
Patent GB-539749-A (GB)
Title: Improvements in or relating to gaseous electric insulating media
IPC: H01B3/16
Filed: 1940-03-21
Abstract: 539,749. Insulation. REYROLLE & CO., Ltd., A., and RITCHIE, P. D. March 21, 1940, No. 5304. [Class 36] A gaseous insulating medium comprises at least one gaseous halogenated hydrocarbon having added thereto a chemically unsaturated gas or vapour which will absorb any halogen or hydrogen halide liberated under electric discharge. The added gas comprises an olefine whose molecules contain no halogen atoms as substituents and whose vapour pressure at 20‹ C. is not less than about 60 mm. of mercury. As examples of hydrocarbon, chloro-trifluoromethane, dichloro-difluoro-methane or carbon tetrafluoride are mentioned, while the unsaturated gas may be ethylene or propylene.
Patent GB-257176-A (GB)
Title: Improvements relating to means for guiding the roving in the drawing apparatus of spinning and roving machines
IPC: D01H13/04
Filed: 1926-02-25
Abstract: 257,176. Wood, J., and Haynes, W. Feb. 25, 1926. Roving and thread guides; rollers and roller heads.-In spinning and roving machines of the kind wherein reciprocating guides are mounted immediately behind the front rollers, brackets 12 are secured to standards 9 to support guide rollers 5<a> close to the drawing rollers, and are slotted to .accommodate bars 16, which carry roving guides 17 and are connected with the rear traversing guide-bar 23 by means of bars 19.
Patent GB-610558-A (GB)
Title: Improvements in or relating to the production of photographic materials
IPC: G03C1/805
Filed: 1946-02-21
Abstract: 610,558. Coated fabrics. KODAK, Ltd., and SOPER, A. K. Feb. 21, 1946, No. 5396. [Class 140] [Also in Group XX] Paper or films of cellulose derivative or synthetic resin are treated with an organic derivative of silicon which imparts water repellant properties thereto and coated with an aqueous dispersion of a hydrophilic colloid. The water-repellant layer is formed by hydrolysis of the silicon compound, either by spraying the support with water, before or after the priming coating, or by the water normally present in the support if this is paper. The silicon compounds may be alkyl, aryl or alkaryl halogenosilanes. Suitable colloid binders are gelatin, polyvinyl alcohol, polyvinyl acetal and regenerated cellulose, and the binder itself may be made light-sensitive. A sheet of paper is passed over a trough containing a mixture of methyl chlorsilanes consisting mainly of the dichlor compound, the sheet forming a lid to the trough and being subjected to the vapour therefrom. A high contrast slow gelatino-silver halide emulsion is then coated on the treated surface; and, after drying, covered with a solution of cellulose nitrate in acetone containing tricresyl and triphenyl phosphates. Paper, may be treated on both sides with the hydrolizable silicon compound. Specifications 553,341, 554,292, 554,298, 554,300 and 554,301, [all in Group XX], are referred to.
Patent GB-539897-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J1/142
Filed: 1940-03-26
Abstract: 539,897. Electrode materials ; thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 26, 1940, No. 5414. Convention date, March 23, 1939. Addition to 521,818. [Class 39 (i)] [Also in Group III] Compounds for liberating alkaline earth metals in discharge tubes for gottering, or for thermionic cathodes consisting of oxygen compounds of such metals with beryllium, as described in the parent Specification, contain at least two alkaline earth metals. The preparation of a compound of barium strontium and beryllium oxide by methods similar to those described in the parent Specification is described and the compounds are used in manner similar to those described in that Specification.
Patent GB-582802-A (GB)
Title: Improvements in or relating to foldable rotors for rotary-wing aircraft
IPC: B64C27/50
Filed: 1944-03-23
Abstract: 582,802. Helicopters. UNITED AIRCRAFT CORPORATION. March 23, 1944, No. 5419. Convention date, March 31, 1943. [Class 4] The rotor blades of a helicopter are foldable for parking &c. purposes, the blades being capable of disconnection from the pitch control mechanism to prevent distortion of the latter. In the construction shown, the blades 14 are connected by hinge lugs 38, 40 to a sleeve 32 which is normally locked by a pin 44 to a second sleeve 48 connected by an arm 46 to the pitch changing mechanism, the blades rotating on spindles 28 mounted on the rotor head. To permit folding of the rotor blades, the appropriate pins 34 are removed from the hinge lugs 38, 40, together with the pins 44 to free the pitch control mechanism. The ends of the blades when folded may be supported by a bracket 74. Specification 576,364 is referred to.
Patent GB-1494839-A (GB)
Title: Discharge lamps
IPC: H01J61/34
Filed: 1975-02-10
Abstract: 1494839 Metal vapour lamps GENERAL ELECTRIC CO 10 Feb 1975 [1 April 1974] 5588/75 Heading H1D To secure the terminations of the tubular ceramic envelope of a high pressure Na vapour lamp, fittings 50 as in Specification 1,437,850, but side-welded in place of butt welding, are attached to the e.g., Nb, termination 18 at the lower end and correspondingly at the top. A holding jig for side welding is illustrated (Fig. 5, not shown).
Patent GB-956811-A (GB)
Title: Improvements in or relating to plating anode baskets
Inventor: PRESTON JULIUS JOHN
IPC: C25D17/10
Filed: 1962-02-14
Abstract: The basket comprises a tubular container 10 of perforated, mesh, expanded metal or other apertured form closed at one end and a holder having a suspension hook 14 at its upper end, a lateral foot 15 supporting the closed end of the wall, and one or more clamping rings 16 secured to both wall and holder.  The tubular container may be of circular or elliptical cross-section and closed at the foot by a cup-shaped member 11.  The container may be formed of titanium and may be bagged with duck or polypropylene. <PICT:0956811/C3/1>
Patent GB-1450933-A (GB)
Title: Slide rule
IPC: G06G1/00
Filed: 1973-02-05
Abstract: 1450933 Slide rule L WHITFIELD 3 Dec 1973 [5 Feb 1973] 5697/73 Heading G4B A slide rule bears four logarithmic scales 6, 7, 8, 9 indicating respectively length or area, weight, weight per unit length or per unit area and number of pieces. Instead of the arrangement shown, scales 6, 7 may be borne by slide 3 and scales 8, 9 by holder 1. Calculations relating to numbers of identical pieces of material (e.g. steel bars or sheets) can be made. For example, the total weight of a certain number of bars of known length and known weight per unit length can be found.
Patent GB-232383-A (GB)
Title: Improvements in or connected with calculating apparatus
IPC: G06G1/00
Filed: 1924-03-05
Abstract: 232,383. Gristwood, F. March 5, 1924. Slide-rules.-A slide-rule of disc form for effecting calculations concerning amounts, weights, and prices of different sizes of paper comprises a central disc a and two smaller discs b, c with two interposed pointers l, m. Disc a bears on one side a scale e of weights, and on the other a scale of weights and percentages. The disc b is graduated with a simple logarithmic scale and has arrows n<1>, n<2>, spaced from the index arrow n, to facilitate determinations of weights of different numbers of sheets. Disc c is graduated with two scales of monetary values and has a radial slot l co-operating with circular scales on the disc a to show equivalent, prices per lb., cwt., and ton.
Patent GB-698388-A (GB)
Title: A new or improved valve and apparatus including the same
IPC: F16K5/18
Filed: 1952-03-05
Abstract: 698,388. Valves. SVENSKA AZTIEBOLAGET GASACCUMULATOR. March 5, 1952 [March 12, 1951; March 12, 1951], No. 5752/52. Class 135 In a valve consisting of a valve chamber having spaced ports therein, and a closure member movably mounted in the chamber so as to press against the peripheral wall thereof and so control flow through the ports, the closure member comprises a resilient leaf capable of selectively closing one of the ports and having its ends rigidly secured to a supporting member. In an embodiment for selectively controlling the supply of anaesthetic and oxygen through inlets 5, 6. respectively, to an outlet 7 leading to a breathing mask. the closure member comprises a leaf spring 14 with its ends held in radial grooves in a cylinder 8 rotatable about its longitudinal axis. The axle of the cylinder projects outside the valve casing and there carries an operating handle. The casing is cup-shaped with a cover held thereon by bolts 19, 20 which are screwed into the bottom plate of the casing. Abutments 17, 18 projecting from the cylinder limit the rotation of the latter in either direction by contacting the bolt 19 which acts as a stop. All parts of the valve are of metal.
Patent GB-348244-A (GB)
Title: Improvements in and relating to treating liquids with gases
IPC: B01D47/00
Filed: 1930-02-21
Abstract: <PICT:0348244/III/1> Liquids are distilled (e.g. by steam) in several films on the surfaces of rotating tubes 1 of different diameters freely disposed one within another in a tubular rotating casing.  The direction of gas flow may be the same as, or in opposition to, that of the liquid.  The casing is inclined and rotated by a sprocket wheel 4; and one of the tubes, preferably the outermost, may be positively rotated, the rest being driven by friction. Rotary stops 13 prevent endwise displacement of the tubes, which may be perforated or of gauze and may be formed with ridges.  The inner tubes may be of short lengths except the innermost one, which may be replaced by a rod.  Windows 7 are provided at the gas entrance 9 and exit 10, liquid entering at 11 and leaving at 12.
Patent GB-293664-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
IPC: F16F9/26
Filed: 1928-02-24
Abstract: 293,664. Draper, A. D., and Bentley & Draper, Ltd. Feb. 24, 1928. Fluid-friction vibration-dampers in which the area of a liquidthrottling orifice varies according to the relative position of the movable parts are constructed with crank - operating mechanisms in which the crank-pin operates a block slidable in a slot in the piston or a link coupled to an oscillating pin, the block or the pin controlling the area of a throttling orifice extendipg lengthwise through the piston. The double piston 6, Fig. 1, works in opposed cylinders 7, 8, the cylinder 7 consisting of a separate member screwed into the body of the apparatus. The external operating-arm is mounted on a spindle 2 carrying an arm 1, to the end of which is pivoted a block 5 slidable in a transverse slot in the piston 6 and provided with ports 17, 18 which close to a greater or less extent a longitudinal passage through the piston. The maximum port opening is given when the arm 1 is at right angles to the axis of the piston, this being the normal running position. Displacement of the piston in either direction reduces the port openings. A portion one-way effect is obtained by a ball-valve 9 pressed on to its seat by a spring. Fluid enters the left cylinder 7 through a ball valve 12 and passages leading to the central reservoir. To adjust the effective areas of the port openings 17, 18, the spindle 2 may be raised or lowered. With this object it is mounted eccentrically in a circular bearing 19 which may be adjusted angularly by an arm 21 and is then clamped in position by a plate 20. The arm 20 may be operated by linkwork from the driver's seat. The cylinder 8 is put out of action as regards movement to the left of the central position by a slot through the piston wall extending from the end and pushing the cylinder and the cylinder and the central chamber in communication with one another through the resultant opening 16. In a modification, Fig. 4, the crank arm 27 is connected to the oscillating valve 28 through a short link 25. One cylinder only may be used, or two identical opposed cylinders.
Patent GB-805137-A (GB)
Title: Improvements in or relating to transistor pulse generators
IPC: H03K4/60
Filed: 1956-02-24
Abstract: 805,137. Converting. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1956 [Feb. 28, 1955], No. 5811/56. Class 38 (2). [Also in Group XL (c)] In a high-voltage D.C. supply generator of the type comprising a transistor pulse generator having a feedback circuit comprising an aperiodic transformer the secondary winding of which is connected to the base electrode through a resistor, hole storage losses are reduced by applying the pulses to the base electrode through an impedance (e.g. capacitor 9) which passes the leading edges of the pulses but has a high value at the pulse repetition frequency. The circuit shown produces a sawtooth current wave the flyback of which provides a high voltage which is rectified to provide the highvoltage D.C. supply to load 6. The capacitor 9 could alternatively be connected across resistor 4 or when the transformer is of the single winding type (Fig. 2, not shown) it may be connected to a tapping on the winding. Alternatively capacitor 9 could be replaced by a rectifier directed so as to pass the blocking pulses or the secondary winding could have been provided with more turns but these modifications would not however have given the improvement provided by the modifications according to the invention.
Patent GB-553262-A (GB)
Title: Loop-taker mechanisms for sewing machines
IPC: D05B57/08
Filed: 1942-05-01
Abstract: 553,262. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). May 1, 1942, No. 5929. [Class 112] In order to bring the beak of a rotary loop taker into successive correct positions to co-operate with a laterally vibrating needle, the vertical shaft of the loop-taker is mounted in a bearing carried eccentrically by an element making one rotation for two descents of the needle. The loop-taker shaft 65 is mounted in a sleeve 59 having a parallel-sided flange 58 which is adjustably secured in a diametral guide way in the top surface of a rotary member 43. The flange is adjusted in the guide-way to suit the variable lateral vibration of the needle. The shaft 65 is rotated from a shaft 32 through a wobbler shaft 72. The member 43 is rotated by gears 55, 49 and corresponding gears on a lay shaft at twice the speed of the shaft 65 which makes two revolutions for each stitch. A casing 83 is mounted on an upper portion of the sleeve 59 and is kept from rotation by a pin 91 the head of which engages a slot 89. The casing carries the usual stop 81 for preventing rotation of the spool case and a thread-gap opening finger 94 is carried by an arm pivoted on the casing at 96 and oscillated relatively thereto by a strap 97 of an eccentric on the loop-taker shaft 65. The feed bar 106 is supported by a pitman 112 from a feed-lift eccentric 111 and an arm 107 on a feed-advance shaft 108 actuated from a variable eccentric on the machine top shaft.
Patent GB-122554-A (GB)
Title: Improvements in Two Cycle Internal Combustion Engines.
Inventor: CROSSLEY KENNETH IRWIN
IPC: F02F1/22
Filed: 1918-04-08
Abstract: 122,554. Crossley, Sir K. I., and Webb, W. Le P. April R, 1918 Cylinders, cooling.-The portion F of the water jacket containing the air and exhaust ports G, D respectively is cast integral with the cylinder A. The upper part of the jacket is flexibly connected as by a rubber ring or 'band T with either the belt F or cylinder head. A similar ring is placed between the belt F and a split ring N closing the lower end of the jacket. For the reception of an igniter, oil sprayer, or valve, a lateral projection X may be cast adjacent to the combustion chamber, the opening in the jacket being closed by a connecting-piece Y.
Patent GB-1214962-A (GB)
Title: Electrostatic charging
IPC: G03G15/02
Filed: 1969-02-05
Abstract: 1,214,962. Electro-photographic charging arrangements. RCA CORPORATION. Feb.5, 1969 [Feb. 20, 1968], No.6099/69. Heading G2H. Gas, e.g. air, in an insulating tube 56 is charged by electrodes 50, 52 and blown by a fan 54 on to a sheet 16 at a point 68 adjacent the exposure position 24. This charging device 12 may be used alone, or in conjunction with a known device 34 when it may switched on just at the start of an operation to charge the portion of sheet 16 initially lying between positions 24 and 34. Electrode 50 may be a metal grid and electrode 52 a thin wire, the gas being charged to the polarity of the latter. The fan 54 may be used even when the electrodes are not energized, since it serves to force the sheet 16 into contact with an earthed conductor 42. In another embodiment Fig. 2 (not shown) in which a cathode-ray tube (72) exposes the sheet, the fan also serves to hold the sheet away from the tube to avoid wear.
Patent GB-792195-A (GB)
Title: Dehydration of aqueous hydrazine by extractive distillation
Inventor: CARTER ALBERT HAROLD
IPC: C01B21/16
Filed: 1955-03-02
Abstract: Aqueous hydrazine is dehydrated by extractive distillation with an alkyl phenol, such as o-m- or p-cresol, xylenols such as 2,4-xylenol, mesitol, phlorol and thymol.  The aqueous hydrazine should preferably be concentrated, containing 60-70 per cent by weight hydrazine, such as the azeotrope.  The distillation is preferably carried out under reduced pressure and in the presence of nitrogen.  The hydrazine solution may be continuously fed into a column, the phenol being fed with it at a point corresponding to 1 or 2 theoretical plates above it.  Water vapour is removed overhead and the bottoms containing the phenol and hydrazine are fed to a stripping column and the hydrazine recovered by distillation.  To obtain 75-95 mol per cent hydrazine, the aqueous feed solution should contain at least 30 mol. per cent hydrazine and 30-40 mol. per cent of the phenol is added.  For 95 mol. per cent hydrazine, the aqueous feed solution should contain at least 40 mol. per cent hydrazine and 40-50 mol. per cent of the phenol are added.
Patent GB-311850-A (GB)
Title: Improvement in flexible couplings for shafts
IPC: F16D3/78
Filed: 1928-02-28
Abstract: 311,850. Norris, H., and Norris, H. Feb. 28, 1928. Universal joints.- In automobile &c. universal joints of the type in which a central flexible disc or ring x is bolted alternately to spider arms on the two shafts and reinforcing plates P are secured around the bolt holes B, one-piece metal sleeves or bushes S are pressed or driven into the bolt holes and plates so that the bolts can be fully tightened without compressing the material of the disc.
Patent GB-177362-A (GB)
Title: Improvements in and relating to the manufacture of ethylene derivatives
Filed: 1921-02-23
Abstract: Ethylene derivatives are manufactured from a gaseous mixture containing ethylene and an halogen or an acid chloride using a porous charcoal, prepared according to Specification 10126/14 [Class 90, Non-metallic elements], as a catalyst either with or without a halogen carrier such as chlorides of antimony, sulphur, phosphorus, &c.  According to examples, the ethylene content of coal-gas is caused to react with chlorine with and without antimony pentachloride, with bromine and with phosgene forming respectively ethylene dichloride, ethylene dibromide and b -chlorpropionyl chloride.
Patent GB-179142-A (GB)
Title: Improvements in methods for introduction of solid particles in suspension into gases, and in inhaling apparatus more especially for realisation of the said methods
IPC: A61M15/00
Filed: 1922-03-02
Abstract: 179,142. Billard, P. April 25, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Inhalers.-A device for permitting the inhalation of gas having in suspension a powder, preferably a calcareous salt, comprises a cylindrical body 1, formed with one or more air-ingress openings 7, and provided with a cover 4 fitted with an electric lamp or other heating-means 8. In front of the body and separated from it by a partition 3 is a chamber 2 in which is mounted a revolving brush 10 adapted to be actuated by hand or otherwise. Above the chamber 2 the cover is fitted with an inhaling mouthpiece 6, and a junction-piece 9 enabling the device to be connected to a reservoir of antiseptic gas is also fitted. In operation, air passing in through the openings 7 is heated by the lamp and passes on to the mouthpiece 6, being joined in its passage by gas from the reservoir. Powder previously placed on or fed on to the brush is thrown off upwardly by the release of the bristles of the brush 10, and is carried out by the issuing gas.
Patent GB-1515654-A (GB)
Title: Optical projection device
IPC: G03B21/28
Filed: 1977-02-15
Abstract: 1515654 Optical projectors for map reading H G JERIE 15 Feb 1977 [24 Feb 1976] 06179/77 Heading G2J A device for use in a projector includes a pair of slides 2, 9 with separate illumination 3, 10 and projected with images overlapping on a screen 1 by lenses 4, 8. Slide 2 may carry a map, while slide 9 carries a similar map with more detail. Lens 8 is carried by a cranked strip 5, which has a window 6 and is moveable orthogonally. With lamp 3 on, the image of slide 2 is scanned, using a mark in window 6, so that when lamp 10 is on an image of a portion of the more detailed slide 9 is projected. The slide may be replaced by roll film with pairs of images. The projector may have a housing with mirrors producing a folded projection path. More than two slides and projection lenses may be used. Means controlling orthogonal movement of strip 5 are described.