baber/WOPTO huggingface dataset:
Patent GB-1391803-A (GB)
Title: 2,3-dihydro-oxoimidazo 1,2-a pyrimidines
IPC: C07D487/04
Filed: 1972-07-07
Abstract: 1391803 lmidazo[1,2-a]pryimidines BOEHRINGER INGELHEIM GmbH 7 July 1972 [8 July 1971] 32005/72 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R 1  is Ph or PhCH 2 , possibly substituted by 1-3 of Me, Et, CF 3 , CN, MeO, F, C1 or Br, and A is -CR 2  = CR 3 -CO-, where at least one of R 2 , R 3  is -(CH 2 ) n NR<SP>1</SP>R<SP>11</SP>, n is 0-3 and NR<SP>1</SP>R<SP>11</SP> is alkylamino, dialkylamino, piperidino, piperazino, morpholino or pyrrolidino, and when R 2  or R 3  is not the said group, it is Me or Et, In examples, these compounds are prepared by reacting a 2-R 1 NH-2-imidazoline with a compound of formula Y-CR 2  = CR 3 -COX, X and Y each being a nucleophilic atom or group; the use of a polar protic solvent favours formation of the 5- oxo compound, and an aprotic solvent, the 7-oxo compound. Therapeutic compositions for oral, parenteral or rectal administration comprise compounds of the above formula, which are CNS regulators and in particular show hypotensive activity, possibly accompanied by an analgesic or sedative effect, or an inhibiting effect on gastric secretion.
Patent GB-483757-A (GB)
Title: Improvements in or relating to wringing machines
IPC: D06F45/26
Filed: 1936-11-24
Abstract: 483,757. Mangles and wringers. ACME WRINGERS, Ltd., and BURT, J. W. Nov. 24, 1936, No. 32107. [Class 138 (ii)] At least one of the clothes &c. guiding boards 4 of a combined mangle and Wringer has its edge adjacent the rollers of non-rectilinear form whereby alternate gaps 6 are provided to permit the escape of the water, and crests 5a to support. the clothes &c. Each end of the board is formed with a die-casting 9 having a pivot pin 10 engaging an aperture 1 in a side bracket 12 whereby the board may be swung to operative or inoperative position and held therein by the engagement of a spring- pressed detent 13 in one of a pair of sockets 14, 15. A projection 17 on the die casting engages the side frame 3 when the board is in operative position.
Patent GB-191248-A (GB)
Title: Improvements in lamps for use on railways for indicating that the speed has to be reduced and also when it can be resumed
IPC: B61L5/20
Filed: 1921-12-01
Abstract: 191,248. Westlake, E. J. Dec. 1, 1921. Lamp signals.-A lamp for giving signals to traffic approaching from two directions has two bull's-eye lenses a<4>, a' on opposite sides of the lamp and a hood at each side having diverging sides, which may be conical or pyramidal, and carry a sheet of opal or translucent glass and a stencilled disc cf opaque material. The disc is held in place by brackets b fixed to the hood and by a strip of metal e<1>. The glass f rests on resilient material in a trough h secured to the back of the stencil plate.
Patent GB-1522372-A (GB)
Title: Method and apparatus for electron beam alignment with a member by detecting x-rays
IPC: H01J37/304
Filed: 1975-08-01
Abstract: 1522372 Aligning semi-conductor wafers WESTINGHOUSE ELECTRIC CORP 1 Aug 1975 32300/75 Heading G1A [Also in Division G3] In a system in which it is necessary to accurately position an object with respect to an electron beam, the object is provided with regions which emit x-rays when struck by the beam; analysis of the x-rays by detectors placed close to the marks provides a measure of whether the marks are receiving the beam, i.e. whether alignment is correct. Any errors noted may be corrected by manual or automatic adjustment of the beam or object position. The object may be an integrated circuit or the like, with the beam being used to expose a photo-resist layer after alignment has been achieved. In Fig. 1, the object 10 has recessed x-ray generating marks 13, preferably of Mo, Hf, Ta, W or Au. A layer of material 14, such as a metal, which is to be etched is covered with photo-resist 15. Initially the beam 18 is scanned over object 10 to overlap the marks 13, and the x-rays are measured by silicon diodes 16 placed behind the marks. The beam scan or the object position is adjusted until each mark emits a predetermined level of x-rays, indicating alignment. The beam is then scanned over the photo-resist sufficiently slowly for the pattern subsequently to be etched in layer 14 to be recorded in the resist. Details are given of a suitable photo-cathode electron beam source which is fixed in a housing with beam scanning coils; the housing also contains the detectors and a holder for the object, Fig. 4 (not shown). Also detailed are a phase detector circuit for use with a swept beam to allow co-ordinate information, angular information and beam size to be determined and hence to permit automatic alignment by adjusting the sweep, Fig. 7 (not shown). The object may be provided with a series of marks, so that the resist can be exposed area by area, the beam being re-aligned with successive marks as each area is exposed.
Patent GB-1155842-A (GB)
Title: Improvements in or relating to Electric Pulse Counting Circuit Arrangements
Inventor: MARSHALL RICHARD CARLILE
IPC: H03K21/02
Filed: 1965-07-28
Abstract: 1,155,842. Counters. GEORGE KENT Ltd. 28 July, 1966 [28 July, 1965], No. 32331/65. Heading G4D. [Also in Division H3] Pulses arriving substantially simultaneously on separate channels at a summing circuit are delayed by varying amounts before application to a counter. A pulse P1 at input IN1 charges capacitor C1 until trigger T1 operates as shown at point tp1, Fig. 2, so pulsing counter input O through Zener diode circuit Vr and transistor TR3. An immediately following pulse P2 at input IN2 charges C2 but trigger T2 will not operate until the potential on C2 exceeds the decaying potential on C1, as shown at tp2. Each trigger may comprise a pair of unlike transistors TR1, TR2 in series, connected by a diode D1 to common line 10, and by a resistor R12 to earth.
Patent GB-382101-A (GB)
Title: Improved process for concentrating nitric solutions and denitrifying nitric-sulphuric acid mixtures
IPC: C01B21/46
Filed: 1931-11-23
Abstract: <PICT:0382101/III/1> <PICT:0382101/III/2> In denitrifying dilute nitric acid or a mixture of sulphuric and nitric acids, the solution to be denitrified is fed to a denitrifying apparatus and hot concentrated sulphuric acid is fed to the flowing solution at several different points on its path through the apparatus, the quantity and temperature of each supply being regulated in such a way that the heat carried by it is sufficient to raise the temperature of the resulting sulphuric-nitric acid mixture to the temperature of evaporation and to cause the evaporation of a certain quantity of this acid. Nitric acid is supplied to the top of a denitrifying tower 2, Fig. 1, hot concentrated sulphuric acid is supplied from a reservoir 9 to the different sections 14 of the tower in determined proportions, nitric acid vapour leaves the tower at 12 and dilute sulphuric acid collects at the base of the tower.  This dilute acid is pumped by a pump 13 to a reservoir 6 whence it passes through a heat exchanger 7 to a pipe 4 at the top of a column 1. The acid is sprayed down the column in counter-current to hot gases from an oil or gas burner 3 and hot concentrated sulphuric acid collects in the base of the column where it preheats the incoming dilute acid.  The hot concentrated acid is then pumped by a pump 8 to the reservoir 9. According to a modification, the hot concentrated sulphuric acid is supplied to a packed tower by means of a coaxial tube having spaced openings up which it is forced by gravity.  According to a further modification, Fig. 3, a heat exchanger 6 is provided which cools (by means of the used dilute acid going to the concentrator) the hot concentrated sulphuric acid, fed in from the concentrator at 7, to different temperatures t, t<1>, t<11>, &c. and supplies thereof at these temperatures are controllably fed to different sections of a tower 2, the sulphuric-nitric acid mixture to be treated is sprayed into the tower through an annular tube 3.  The action of the hot concentrated sulphuric acid may be assisted by means of hot gases such as water vapour, vapour of sulphuric acid or air, which may be fed in at the bottom of the denitrifying tower.
Patent GB-428625-A (GB)
Title: Improvements in and connected with shearing or cutting mechanism of paper bag making and like machinery
IPC: B31B23/00
Filed: 1933-11-21
Abstract: 428,625. Making paper bags &c. FRENCH, G. W., Winterstoke Road, Ashton Gate, Bristol. Nov. 21, 1933, No. 32488. [Class 94 (ii)] In shearing or cutting mechanism of the beater type for cutting lengths of tubular sheet material 1 for paper bag &c. making, a device is provided comprising an abutment member which may be a cam 11 or a crank or bar, which is adapted to be brought automatically into contact with the tubular sheet material to displace or bend it to take the slack therefrom, during its transit from the former plate 2 across the shearing zone, so that there will be no slack or a diminished slack as the shearing operation is about to take place. The tubular material, fed by rolls 3, 3a and taken up by rolls 5, is periodically displaced by a cam roller 11, of substantially D-form, to take slack from the same immediately before the beater 7 effects severance of the tubular blank on the edges 6, 8. The flat surface 12 of the roller 11 is substantially horizontal as the leading edge of the tube is fed forwardly.
Patent GB-508011-A (GB)
Title: Manufacture of light filter layers
IPC: G03C5/02
Filed: 1937-11-25
Abstract: 508,011. Colour filters. I. G. FARBENINDUSTRIE AKT.-GES. Nov. 25, 1937, No. 32518. Convention date, Nov. 26, 1936. [Classes 97 (i) and 98 (ii)] Filters are produced by illuminating with coloured or white light material comprising one or more silver halide emulsion layers containing dyestuff components fast to diffusion, and forming therein, if desired through a patternfilter, a dyestuff image directly or by reversal by colour development or by azo coupling. Any silver image formed may be removed as by Farmer's reducer. There may be so produced uniformly coloured filters, graded or stepped filters, and multi-colour, e.g. strip, filters of uniform or varying strip density. The filter may be on a support as of glass, cellulose or its derivatives, artificial resins, &c. Specifications 430,991, 436,587, 458,400, 465,823, 468,946, 479,838, 481,501, 483,000, 484,698, 488,048, 489,093, 489,161 and 489,274 are referred to. The Specification as open to inspection under Sect. 91 claims broadly the manufacture of filter layers by exposing to white or coloured light material comprising one or more silver halide emulsion layers, and producing a dyestuff image therein directly or by way of a silver image. It refers also (1) to azo coupling processes using emulsion layers containing dyestuff components, (2) to processes wherein dyestuff formers in the emulsions, or dyes formed therefrom, are destroyed, and (3) to the production of multi-colour screens. This subject-matter does not appear in the Specification as accepted.
Patent GB-303260-A (GB)
Title: Improvements in or relating to laminated springs
IPC: B25B27/28
Filed: 1927-12-02
Abstract: 303,260. Woodhead, G. A. Dec. 2, 1927. Laminated springs; indiarubber springs.--In laminated springs having rolled eyes and indiarubber bushes, the eyes are made with two or more closely wrapped superimposed coils or turns to prevent yielding and ensure that the outer metal sleeve b is gripped sufficiently firmly to prevent rotation. The rubber is fixed to the inner and outer sleeves b, e which are intended to be locked solid to the spring eye and fixed pin f respectively. The eye and the outer sleeve b may be formed with coacting flats.
Patent GB-1159663-A (GB)
Title: Improvements in or relating to a Medicament Injector
IPC: A61M5/24
Filed: 1966-07-20
Abstract: 1,159,663. Medicament injectors. R. W. OGLE. 20 July, 1966 [23 July, 1965; 19 May, 1966], No. 32689/66. Heading A5R. A medicament injector comprises a cylindrical vial 20 which is closed by a resilient plug 25 having a plurality of rings 30, 31, 32 engaging the wall of the vial with a press fit, and a cylindrical member having one closed end 38 from which a needle 41 having a sharpened inward end 42 extends both inwardly and outwardly, the plug 25 and the cylindrical member each being provided with cooperating interlocking means 28, 37 whereby, upon initially interlocking the plug with the cylindrical member, the vial is held in an assembled but non-operating position and, upon further and fully interlocking the plug with the member, the plug is adapted to be pierced by the sharpened end of the needle so that the needle communicates with the interior of the vial and the plug is locked .securely to the cylindrical member permitting both aspiration and the expulsion of the contents of the vial. As shown, the cylindrical member 34 is formed within a cylindrical glass or plastics holder 33 and has threads 37 engaging with threads 28 on the rubber plug 25, a bore 26 and a thin wall 53 in the plug allowing the needle to reach the medicament 44 when the glass or plastics vial with the plug are rotated relative to the holder 33. The medicament 44 is then expelled for injection by pressing the vial over the plug 25 up into the holder. A two part housing (Figures 1, 2, not shown) may be provided and has internal ribs (49) and a shoulder (47) to support the injector in a sterile condition. In an alternative embodiment (Figure 4, not shown), the sharpened end 42 of the needle, before use, fits into a bore (70) in the adjacent end of the plug and the provision of a needle cover for the exposed part of the needle allows the two part housing to the dispensed with. A further embodiment (Figures 5-9, not shown) is provided with teeth (180) on the plug which engage with teeth (190) on the lower edge of the cylindrical member (134) and allow the plug and cylindrical member to be rotated relative to the vial so as to break any seizure or bind between the plug and vial. In a final embodiment (Figure 10, not shown), the cylindrical holder 33 surrounding the cylindrical member (334) is omitted and flanges (335) on the cylindrical member aid handling.
Patent GB-1444070-A (GB)
Title: Process for extracting alumina from bauxite
IPC: C01F7/0633
Filed: 1974-07-24
Abstract: 1444070 Alumina; Bayer process MITSUI MINING & SMELTING CO Ltd 24 July 1974 [14 June 1974] 32691/74 Heading C1A In the Bayer process, the alkaline digestion of goethite-containing bauxite is carried out at a temperature of 270 to 350 C. in the presence of an organic substance which is capable of reducing goethite to magnetite at the temperature of the digestion. Such organic substances may be present in the bauxite (e.g. humus or bitumen) and preferably impart a colour to the extract solution which indicates their concentration; they are preferably present in a concentration of 5 g./l. (calculated as carbon) or less. The caustic alkali used in the digestion may be the solution obtained after aluminium hydroxide is deposited from the sodium aluminate solution formed during the digestion.
Patent GB-406823-A (GB)
Title: Clasps or fastenings for jewel and other cases, boxes and the like
IPC: A45C13/10
Filed: 1932-11-19
Abstract: 406,823. Hasp fastsnings ; hinges. CHENEY, C. W., Factory Road, Soho, Birming- ham. Nov. 19, 1932, No. 32714. [Classes 44 and 65 (ii).] A hasp a is hinged to an apertured attachment plate c by trunnions a<2>, a<3> bearing in pressed out portions of the plate, and is held in its closed and open positions by a plate spring d secured to the back of the plate c, preferably by turned-down lugs c<7>. The spring d, which serves to attach the hasp to the plate c, may be slightly bowed at its centre d<2> towards the hasp to co-operate with the V-shaped edge of the short arm a<4> of the hasp. The hasp may have a hole a‹ to snap engage a stud.
Patent GB-661558-A (GB)
Title: Improvements in and relating to hoists for motor vehicles and the like
IPC: B66F7/22
Filed: 1949-12-22
Abstract: 661,558. Vehicle hoists. CAMPLING, A. G. Dec. 22, 1949. [Feb. 17, 1949] No. 32811/49. Class 78 (iii). A vehicle hoist comprises wheel supporting tracks 10, 11 mounted on a wheeled truck and tiltable to the position shown in Fig. 3, and clamping hooks 43 which automatically engage the vehicle wheels 88 when the hoist is raised. The frame 13, on which the track 11 is fixed and the track 10 is adjustable by a screw device 16, is raised by a screw and nut mechanism which comprises a non-rotatable screw 35 pivoted to a wheeled frame 24 and a threaded pulley 34 journalled on a housing 33 pivoted on the frame 13, said pulley being rotated by a belt 37 and motor 31. During a sustained lift props 38 are engaged with ratchets 41 to relieve the screw mechanism and screw legs 27 are extended to relieve the wheels. The hooks 43 are adjustably secured to chains 44 attached to ratchet members 45 which are pivoted at 46 and co-operate with pawls 52 engaging said ratchets gravitationally. The ratchet member 45 is adjustable longitudinally of the hoist to accommodate vehicles of various lengths. In operation, as the vehicle is raised, engagement of a flange 57 and abutments 54 pivots the members 45 and tightens the chains : on lowering the pawls 52 strike the lower flange 57a and release the ratchet and thus the hooks. In a modification (not shown) the frame 13 is raised by a crane and the whole device may be immobile.
Patent GB-572507-A (GB)
Title: Improvements in filters for gases
IPC: B01D46/30
Filed: 1939-12-23
Abstract: 572,507. Filtering gases. HURLEY, T. F., FITTON, A., and DAVIES, D. T. Dec. 23, 1939, No. 32823. [Class 8 (ii)] Producer gas is cleaned by two or more filter beds in series, the first bed being of larger area than the second and the beds being arranged for independent cleaning; the beds normally work at different points of the cycle of three periods, viz., initial, useful, and , break-through. The beds may be in separate containers, or one container may be disposed within another. As shown, a layer of sisal tow, granulated coke or contact rings is disposed in the lower and larger part 1 of a container, and a secondary filter of sisal tow and of smaller area in the upper part 2. The cleaning doors may be interchangeable and the upper door may carry a spacing disc 12 attached by distance pieces 14. The inlet 7 may be tangential.
Patent GB-1224678-A (GB)
Title: Electrode for building up abrasion-resistant deposits on steel articles
Inventor: JUZVENKO JURY ARSENIEVICH
IPC: B23K35/368
Filed: 1969-06-30
Abstract: 1,224,678. Welding by fusion. INSTITUT ELEKTROSVARKI IMENI E.O. PATONA. 30 June, 1969, No. 32885/69. Heading B3R. An electrode for building-up abrasion-resistant deposits on steel parts comprises a nickel sheath and a core containing chromium carbides and, to strengthen the deposit matrix, 1 to 3%, by weight of electrode, aluminium powder. The core may further contain, by weight of electrode, 1 to 3% sodium fluosilicate (to eliminate porosity in the deposit) and, additionally, chromium boride, boron carbide or. boron-chromium alloys (to further strengthen the deposit matrix). The electrode may be of circular (5-6 mm. diameter) or flat crosssection (20 x 3 mm.). The electrode may contain, by weight of electrode, 40-60% chromium carbide 1-3% aluminium powder 1-3% sodium fluosilicate 2-8% chromium boride or boron carbide Balance nickel sheath The chromium boride or boron carbide may be replaced by 2-12% B-CRFe-Al alloy (15-25% B, 30-50% Cr, 2-8% Al, Balance Fe). The deposition process referred to is automatic submerged arc. The Specification includes results of abrasion tests using gas blown at varying attack angles and containing 10% wt., quartz sand or flue dust.
Patent GB-761380-A (GB)
Title: Blade mounting for compressors, turbines and like fluid flow machines
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F01D5/30
Filed: 1953-11-26
Abstract: 761,380. Bladed turbine and compressor rotors. POWER JETS (RESEARCH & DE. VELOPMENT), Ltd. Oct. 22, 1954 [Nov. 26, 1953], No. 32901/53. Class 110 (3). A bladed rotor for a turbine or compressor comprises a plurality of coaxial, axially-spaced thin discs 1a, 1b ... and a plurality of rotor blades mounted on the periphery thereof, each blade 6 having an enlarged foot portion 6c and being secured to the rotor by a pair of retaining-pieces 20, one engaging with each circumferentially-facing side of the blade foot and being secured to all the thin discs. The blades are made of notch-sensitive material such as refractory ceramic. The sheet metal rotor discs la, 1b ... are clamped between end rings 2, 3 by means of bolts 4 and the discs are spaced apart by means of washers 5. The enlarged foot portion 6c of each blade is of dovetail shape, has a platform 6b and rests on the periphery of the discs 1a, 1b .... Each retaining piece 20 has side surfaces 20a corresponding to the side surfaces 6d of the dovetail foot portions 6c and has a fir-tree type root 20b by which it is retained in corresponding slots in the rotor discs. The discs are provided with apertures 22a, 22b ... through which cooling air is supplied, for example from the compressor in the case of a gas turbine engine, the air passing through the bores 20c in the retaining pieces 20 to the spaces 26, finally escaping through the gaps between the blade platforms. The refractory ceramic material of the blades may consist of, for example, sintered oxides, silicides, carbides or borides of metals such as beryllium, aluminium or titanium, or sintered metalceramic mixtures.
Patent GB-521296-A (GB)
Title: An improved manufacture of insulated electrical conductors
IPC: H01B9/06
Filed: 1938-11-12
Abstract: 521,296. Electric cables. STANDARD OIL DEVELOPMENT CO. Nov. 12, 1938, No. 32947. Convention date, Feb. 25. [Class 36] [Also in Group IV] Electric cables are insulated by means of low pour-point hydrocarbon oils made by further polymerization by known methods of polymers of normally gaseous iso-olefines containing 8-20 carbon atoms such as di- and tri-isobutylene or copolymers of such initial polymers and normal or iso-olefines; the former yield oils of low and the latter oils of high viscosity index. Tables are given showing the properties of the products prepared from di-isobutylene under various conditions. An electric conductor may be insulated by a spiral wrapping of paper, Fig. 1, impregnated with the oil; or the dry paper may be wrapped around the conductor and the hot oil is then forced in from one end after the air between the lead sheath and the conductor has been evacuated. Alternatively, Fig. 2, the conductor 1 is spaced from its outer sheath 2 by spacing-means 4 and the space between is filled with the oil.
Patent GB-834766-A (GB)
Title: A process of preparing a fertilizer
IPC: C05B11/06
Filed: 1958-10-15
Abstract: In the production of a fertilizer by reacting a crude phosphate with nitric acid followed, possibly after crystallizing some calcium nitrate, by partial neutralization to a pH of 1 to 7 with a gas containing ammonia, the pH of the reaction mixture is maintained substantially constant by continuously withdrawing some of the partially neutralized suspension and diluting it with at least 150% by volume of water, and continuously measuring the pH of the diluted suspension by means of electrodes and controlling the feed of gas to the reaction mixture in such a way as to keep the pH as measured, substantially constant.  A suitable apparatus is shown in the Figure, where 3 represents a neutralizing vessel containing a partially neutralized suspension at 105 DEG  to 115 DEG  C.  A pump 6 continuously bleeds some of the partially <PICT:0834766/III/1> neutralized suspension through a filter 5 into a measuring vessel 7 where the pH is assessed.  As the suspension leaves the neutralizer vessel, it becomes diluted with water sucked in through U tube 2.  A push rod 4 is provided to remove any deposits that may form on the orifice leading from the neutralizer. Reference is made to prior art attempts to measure the pH directly in suspension employing electrodes coated with silicones to prevent dicalcium phosphate deposits forming thereon, and to the subjection of gold electrodes to ultrasonic vibrations for the same purpose.