baber/WOPTO huggingface dataset:
Patent GB-1282357-A (GB)
Title: A cell and method for the spectral analysis of gases or vapours
IPC: G01N21/03
Filed: 1970-05-29
Abstract: 1282357 Sample holding cell ANGLO AMERICAN CORP OF SOUTH AFRICA Ltd 29 May 1970 [4 June 1969] 26065/70 Heading G2J A high temperature gas or vapour analysis cell comprises a hollow body with at least one radiation aperture 9 through which gas &c. to be analysed will flow out and means 12 for providing a flowing curtain of inert gas across the aperture(s) to deflect analysis gas from the radiation path. A heated sample in a boat 17 is vapourized and entrained by a carrier gas such as nitrogen flowing from a heated tube 6 through a pipe 14 into the hollow body of the cell. Optical radiation is passed through two apertures 9 when the cell is placed in a spectrometer and the combined emission/ absorption spectrum is analysed. Then a metal shutter is operated to block the optical radiation so that only the emission spectrum is analysed. By subtraction an absorption spectrum is obtained. Constant path length is ensured by heated inert gas passing through heated tubes 7, 13 and a slot 12 to form the gas curtain over the aperture 9. Nickel foil plates provided near the each end of the cell reduce the amount of carrier gas escaping into the spectro-photometer. Thermocouples, in wells 16 are connected to thermostats controlling heating coils surrounding the whole apparatus which is supported by asbestos boards and contained in a water cooled brass housing. An example is given wherein zinc chloride is heated to 800C. and analysed. Reference is also made to analysis of TiCl 4 . For analysing a gas, such as CO 2 , the gas is introduced directly into the tube 6. The cell may have only one window where it is required to measure radiation originating within the cell.
Patent GB-443445-A (GB)
Title: Improvements relating to the arrangement of the ports of sleeve-valve internal combustion engines
IPC: F02B75/02
Filed: 1934-09-12
Abstract: 443,445. Cylinders. ROWLEDGE, A. J., 21, Trowels Lane, Derby. Sept. 12, 1934, No. 26173. [Class 7 (ii)] In a sleeve-valve engine, seen in transverse section and plan, each cylinder has, on one side, inlet ports c, c<1>, and on the other side, exhaust ports e, e<1>, separated by a further inlet port d. Temperature distortion is thus reduced, and a short engine produced. The ports, which need not necessarily be at the same level, are connected to inlet manifolds b, b<1> and on exhaust manifold f.
Patent GB-1508046-A (GB)
Title: Process for the polymerization of ethylene
IPC: C08F4/642
Filed: 1975-06-19
Abstract: 1508046 Titanium halide/poly-(iminoalane) catalysts SNAMPROGETTI SpA 19 June 1975 [1 July 1974] 26199/75 Heading C3P Ethylene is polymerized using a catalyst comprising a trivalent Ti halide and a polyiminoalane of formula where R = hydrocarbyl radical, Y = halogen, k = 2-50, i>0, j#0, h : k>1 : 1, (i+j) : h> 1 : 1.
Patent GB-1367010-A (GB)
Title: Methods of manufacturing an automatic coupling for railway vehicles
Inventor: PERROT R
IPC: B61G5/06
Filed: 1972-06-06
Abstract: 1367010 Making railway couplings ACIERIES DE PARIS & D OUTREAT 6 June 1972 [8 June 1971] 26280/72 Heading B3A [Also in Division B7] A rail vehicle automatic coupling comprises a traction/buffing housing part 1 having the shank 2 integral therewith and a service line housing part 3, the two parts being manufactured separately and then welded together along the line A-B on an automatic welding machine, the contour of the weld 4 being circular. After welding part 4a, Fig. 2 (not shown), thereof is cut away to protrude the required coupling shape.
Patent GB-1307350-A (GB)
Title: Automatic beam focusing system
IPC: H04N3/26
Filed: 1971-04-19
Abstract: 1307350 Automatic control of focus RCA CORPORATION 19 April 1971 [15 April 1970] 26411/71 Heading G3R [Also in Division H4] The beam of an image pick-up tube 16, Fig.1, is automatically focused by modulating the focusing current supplied to focusing coils 17 from supply 34 under the control of a square wave 40 from multi-vibrator 32, detecting the modulation components in the output signals developed by the tube and producing by means of circuit elements 26...30 a D.C. control signal which varies the focusing voltage V f  supplied via correction amplifier 31 to the focusing electrode 18 such that correct focus is established and maintained. Tube 16 is provided with a spatial encoding colour filter 14 comprising superimposed colour encoding gratings for encoding red and blue image light as amplitude modulation of respective 3.5MHZ and 5MHZ carrier waves, amplifier 26 is tuned to have peak responses at these frequencies and detector and filter circuit 27 demodulates the carrier wave signals and smoothes them to provide an image signal. A circuit 28 clamps and samples the output of detector and filter 27 (see also Fig.3) and supplies a signal having a polarity determined by the polarity of the output of the latter to a pulse amplifier 29 which supplies an error hold circuit 30 (detailed in Fig. 2, not shown) producing a continuous control signal having a polarity determined by the polarity of the pulse output of amplifier 29. The control signal is then utilized to adjust the focusing voltage V  f  via differential correction amplifier 31. In the general operation of the arrangement the waveform 40, from which the clamping pulse 41 and sampling pulse 42 are derived, produces a slight variation 43 in the focusing current I f  (not noticeable in a reproduced television picture) which produces a slight variation of the amplitude of the signal output of the tube resulting in the modulated wave output of amplifier 26 having the amplitude variations shown in Figs.3c and 3d when the focusing voltage V f  is too high and too low respectively and that shown in Fig.3b when the focusing voltage is correct. Thus, the smoothed output of detector and filter circuit 27 has a polarity determined by the increase or decrease in the amplitude of the modulated carrier wave signals so that the pulse output of amplifier 29 has similar polarity and controls the focusing voltage V  f  to correct the out of focus condition.
Patent GB-393150-A (GB)
Title: Improvements in egg cartons and fillers therefor
IPC: B65D85/32
Filed: 1932-09-23
Abstract: 393,150. Egg cartons. COYLE, J. L., 20, Becher Street, London. Sept. 23, 1932, No. 26488. [Class 18.] Eggs are contained in a carton comprising a collapsable filler 29 formed by longitudinal walls 31 and cross walls 30 which is enclosed in a carton proper consisting of wall portions 5 forming the bottom, 6, 7 forming the sides, and 8, 9 overlapping to form the top. The walls 6, 7 have tongues 33, 34 stamped out with wings 35, 36, these tongues being tucked downwards inside the outer longitudinal walls and the wings 35, 36 engaging in slots 30<x> of the cross walls 30 so as to hold the carton and filler together. The top is secured by tongues 18 cut out of the flap 9 engaging slits 15 in the flap 18, slits 20, 21 forming projections 19. The bottom 5 is embossed, as shown in Fig. 6, so that the eggs assume an inclined position.
Patent GB-1283324-A (GB)
Title: Tunable cavity resonators
Inventor: LEVIN MARTIN ELIA
IPC: H01J23/207
Filed: 1971-04-19
Abstract: 1283324 Klystrons; cavity resonators VARIAN ASSOCIATES 19 April 1971 [13 April 1970] 26489/71 Headings HID and H1W A tuning arrangement for a cavity resonator 6 -e.g. of a klystron-includes an actuating member of a material of comparatively low coefficient of thermal expansion and a cooling structure for the tuning member which extends from the tuning member to the outside of the resonator, which is of a material having a substantially higher thermal conductivity than the material of the actuating member, and which is mounted for thermal expansion substantially independent of the actuating member, whereby to reduce temperature dependent tuning effects. As shown, a copper or alumminium cooling stem 65 and molybdenum or tungsten actuating rod 66 are brazed to a saddle-shaped tuning member 9, the actuating rod being axially adjustable by rotation of a shaft 38 with gears 37 and 68. The cooling stem 65 extends through the bellows 51 and an aperture 27 in the cavity wall, and has cooling fins 28 attached to its outer end. In a modified embodiment (Figs 2 and 3, not shown), the cooling structure is mounted within a hollow, cylindrical actuating member, and includes a central passage permitting cooling air to be pumped along a path bounded by the surface of the bellows 51.
Patent GB-836435-A (GB)
Title: Protection of electronic apparatus from current and voltage surges
IPC: H02H9/04
Filed: 1957-08-22
Abstract: 836,435. Railway track circuit protective devices. GENERAL RAILWAY SIGNAL CO. Aug. 22, 1957 [Sept. 4, 1956], No. 26527/57. Class 105. [Also in Group XXXV] A push-pull electronic amplifying stage, particularly a push-pull transistor amplifying stage in a railway track circuit, is protected from voltage surges due, e.g. to lightning, external voltage surges and static discharges by means of a capacitor 36 connected across one diagonal of a rectifying bridge 37-40 which bridge is connected across the output 41, 42 of the push-pull amplifying stage 22-25 so as to absorb the transient voltage surges applied thereto, e.g. from the track rails 5 via the track circuit feed transformer T2, the condenser 36 absorbing the surges and having internal leakage characteristics to dissipate the excessive charge due to the surges. As shown, the capacitor 36, which may be an electrolytic condenser, has its positive terminal connected in common to all the transistor emitters of the amplifier and to the mid-point 29 of an input transformer T1 to the transistors and to the positive terminal of a transistor biasing D.C. source 13. The amplifier is fed from a transistor oscillator stage. In the railway track circuit shown, a lightning arrester 33 is connected across the rails to provide an equalizing path between the rails for relatively high voltage static discharges, the capacitor 36 absorbing the energy for relatively low voltage static discharges. Other lightning arresters 32, 34, are connected between the respective rails and ground. Specification 836,434 is referred to.
Patent GB-501720-A (GB)
Title: Improvements in the construction of links for endless tracks of vehicles, tractors, excavators, conveyors and the like
IPC: B21L9/02
Filed: 1938-09-13
Abstract: 501,720. Chains. HORNSBY, H. Sept. 13, 1938, No. 26671. [Class 24] [Also in Groups, XXXI and XXII] Endless tracks for vehicles, conveyers, or excavators are composed of links each side plate of which comprises two similar wedgeshaped plates A, B, arranged so that the converging parts thereof overlap each other at a, b, c these overlapping parts being welded or otherwise secured together. The plates may be formed from a parallel-sided blank by cutting the latter along a diagonal line. In the construction shown the plates are welded together along the edges ab, bc. A link is formed by securing two side plates together by means of a bush 6 secured in holes 4 in the plates A. A second link is pivoted to the first link by a pin 7 passing freely through the bush of the second link and secured in holes 5 of the first link.
Patent GB-602194-A (GB)
Title: Indicators
IPC: H01J29/34
Filed: 1945-10-12
Abstract: 602,194. Direction-finding apparatus. STANDARD TELEPHONES & CABLES, Ltd. Oct. 12, 1945, No. 26781. Convention date, March 5, 1943. [Class 40 (vii)] [Also in Group XIX] Direction-finding apparatus of the kind in which a trace is produced on the screen 12 of a cathode-ray tube, has an inclined film 18 between the screen and a viewing mask 14. A lamp 20 projects an image of an alidade, left transparent in the opaque face of a disc 22, and of a scale 17, similarly made in the periphery of a disc 16, on to the film 18. The disc 22 is rotatable so that the alidade can be aligned with the trace. on the screen to indicate the direction against the scale.
Patent GB-229732-A (GB)
Title: Improvements in high frequency transmission
IPC: H04B1/50
Filed: 1923-10-26
Abstract: 229,732. Western Electric Co., Ltd., (Western Electric Co., Inc.). Oct. 26, 1923. Thermionic modul a t i n g systems; secret signalling systems; combined transmitting and rec e iv i n g arrangements; homodyne receiving systems; thermionic amplifiers and detectors; diplex and duplex signalling. - In a wave signalling system the unmodulated component of the principal carrier wave is partially suppressed at the transmitter and at the receiving station is separated from the side band or bands and amplified and impressed with the side band or bands on a detecting device and the side band or bands are spaced away from the principal carrier by means of a spacing carrier wave. The Figure shows one station arranged for two way working employing balanced modulators 2, 4 for adding speech waves to the spacing carrier source 3 and for adding the output of this modulator to the principal carrier source 6. The receiving apparatus comprises means either by the use of a coupling circuit 32 or by wireless transmission or both for impressing both the local principal carrier f1 and the distant principal carrier f2 both with their side band or bands on a detecting device 11. One of the resultant carrier waves is separated from its side band or bands and is amplified by means of the amplifier 16 and the frequencies are combined in the detecting device 17. The output of the latter is applied to the balanced modulator 19 together with waves of the spacing carrier frquency from a source 3<1> to d'erive the speech modulation impressed on either of the carriers f1 or f2. Band filters 5, 7, 12, 18 and 20 are employed to select the desired side band from the modulators 2, 4, 16, 17 and 19 and band filters 14 and 15 for separating the carrier from its side band or band's. The system may in addition provide a telegraph channel by superimposing a frequency on the modulator 4 from a source t and providing a tuned circuit 34 connected to a receiving instrument 35. A low frequency telephone line may be connected to the input and the output through a balanced triple winding transformer. In a modification the output from the filter 12 is applied to a modulating device together with an auxiliary carrier wave to raise or lower the frequency before the separation of the carrier from the side band or bands. The principal carriers f1, f2 may have small variations introduced to prevent intercepting by simple heterodyne.. Specifications 102,503, 130.432, and 147,147 are referred to.
Patent GB-449154-A (GB)
Title: Improvements in devices for determining the altitude from aeroplanes
IPC: G01C5/00
Filed: 1934-09-18
Abstract: 449,154. Calculating-apparatus. AKT.- GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho Slovakia, and CLEMENTI, A., 5, Sonnleithnergasse, Vienna. Sept. 18, 1934, No. 26835. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 20, 1935]. [Class 106 (i)] [See also Group XX] The altitude of an aeroplane is determined from a deformable rightangled triangle comprising a screw 1 with a nut 2 moved along the screw in accordance with the known ground speed by a setting drum 13 and a screw 3 mounted in the nut 2 and carrying a second nut 7 moved along the screw 3 by gearing 9, 10, the arrangement being such that the hypotenuse 4 pivoted at 6 and having a slot 5 engaging a pin on the nut 7 rotates about the pivot 6 through an angle proportional to the altitude which is indicated through gearing 14, 15 and pointer 16 on a dial 17. The shaft 11 driving the gear 10 is operated by clockwork mechanism 12. The latter is started, if desired automatically, when an object on the ground is aligned with a telescope which is then moved back through a constant angle, the clockwork being stopped when the object is again aligned with the telescope. Modifications are described in which the deformation of the right-angled triangle depends on the known ground speed and on the operation of a device comprising a slide, the movement of which is adjusted to be apparently identical with that of an object on the ground or on a pivoted telescope caused to follow an object on the ground for a predetermined time. In a further modification, one of the shorter sides of the triangle is fixed and the other side is adjusted by clockwork which is started when a telescope is first aligned with an object on the ground and stopped when it is again in alignment, the telescope at the first alignment starting to rotate at constant speed so that after a time dependent on the altitude and ground speed it again comes into alignment.
Patent GB-673345-A (GB)
Title: Improvements in or relating to electric transformers
Inventor: SCHUETTLER ARTHUR
IPC: H01F38/18
Filed: 1950-11-03
Abstract: 673,345. Making dynamo-electric machines. KRONPRINZ AKT.-GES. FUR METALLINDUSTRIE. Nov. 3, 1950, No. 26851/50. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Welding by pressure.-A welding transformer is arranged to be rotatable in two bearings 6, 7 and has a secondary winding 1, 3 comprising two concentric members 5, 8 which are arranged to carry the welding electrode discs 10, 11, around the circumference of which are arranged inserts 12 so that the assembly is suitable for the seam welding of tubes 16 and the like. Rotation of the transformer causes the electrode discs to rotate, the seam of the tube 16 fusing together due to the heat generated there by the passage of current. The tube may or may not have an independent feed. The secondary winding may be formed by casting, the members 5, 8 being cast integral with each other and then separated by drilling, e.g. with a hollow drill.
Patent GB-303918-A (GB)
Title: Improvements in or relating to tyre vulcanising apparatus
IPC: B29C35/00
Filed: 1927-10-11
Abstract: 303,918. Lenegan, J. Oct. 11, 1927. Vulcanizing-moulds, clamps. - In tyre-vulcanizing apparatus comprising curved steam-heated side moulds, adjustable laterally, the mould parts ane connected by adjustable rigid steam and water pipes. Mould portions 14, 15, Fig. 2, with steam spaces 8 are adjustably connected by bolts 20 passing through lugs 19, the gap 28 between the halves being filled with packing strips having tongues embracing the bolts 20 to prevent displacement. A tread-ring 43 is slid into an undercut groove 44 in the mould-halves. The bolts 20 also carry arms 22 having a series of holes, through two of which are passed bolts 23, 24 holding a cross-bar 25 through which passes a screw clamp 34. The mould is mounted on a stand 3, Fig. 1, over a boiler 4 heated by a gas-ring 6 and contained in a chamber 5, with a cover 36 capable of being removed if it is desired to heat the mould directly. Steam is admitted to the moulds by pipes 7, a telescopic joint, Fig. 2, being provided to allow of adjustment of the mould halves. Branch pipes 11 admit steam to a hollow plate 10 for vulcanizing tubes. Condensation water returns by pipes 9, 13.
Patent GB-188886-A (GB)
Title: Improvements in suction cleaners
IPC: A47L9/02
Filed: 1921-10-11
Abstract: 188,886. Owen, I. J. Oct. 11, 1921. Vacuum cleaning-apparatus.-The nozzle is formed with contracted neck portion 9 in the main passage and with end openings curved exteriorly at the parts 7 and having contracted portions 8 and adjusted in use 3/32 in. or more above the surface to be cleaned. It may be applied to a cleaner having a motor and fan mounted on an horizontal axis.
Patent GB-502653-A (GB)
Title: Improvements in electric filters comprising piezo-electric crystals
IPC: H03H9/54
Filed: 1938-09-15
Abstract: 502,653. Impedance networks; piezoelectric crystal mountings. FIDES GES. FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. Sept. 15, 1938, No. 26938. Convention date, Sept. 15, 1937. [Classes 40 (iii) and 40 (v)] Two or more pairs of piezo-electric crystals forming a filter are arranged in a common screen, in such a way that electrodes which are conductively connected face one another. Thus, the crystals 1, 2, 3, 4 in the circuit shown in Fig. 1 are arranged inside a hollow screen S as shown in Fig. 2, with the outer electrodes equidistant from the walls of the screen. When the crystals form a Wheatstone bridge, Fig. 3 (not shown), the hollow screen S may be divided into two compartments, Fig. 4 (not shown); and eight crystals forming two bridges in cascade, Fig. 5 (not shown), may be similarly arranged, Fig. 6 (not shown). Specification 474,337 is referred to.
Patent GB-1076260-A (GB)
Title: A process for the manufacture of organic nitriles
Filed: 1964-06-30
Abstract: Organic nitriles are prepared by admixing (1) a phosphonitrilic chloride, (2) an alkali metal, alkaline earth metal or ammonium salt of an aliphatic or aromatic carboxylic acid and (3) an ammonium salt or amide of an inorganic acid, urea, ammonium carbamate or the ammonium salt of the acid whose salt is employed as (2) and heating the mixture.  When employing an ammonium salt as reactant (2) it is unnecessary to add a nitrogen containing compound (3) to the reaction mixture.
Patent GB-349400-A (GB)
Title: Improvements in electric contact pieces
IPC: B22F5/10
Filed: 1930-09-10
Abstract: 349,400. Heating by electricity. KRUPP AKT.-GES., F., Essen, Germany. Sept. 10, 1930, No. 27031. Convention date, Sept. 25, 1929. [Class 39 (iii).] Current for heating a wire or strip c for annealing it is supplied through a contact piece a of hard metal carbide alloy having a curved bore b such that the wire passing through it touches the contact at several points d, e, f. The contact is made by pressing a mass of tungsten carbide alloy having embedded therein a blank of copper &c. to form the bore b. The mass is then sintered at a temperature at which the blank fuses and flows away. A suitable alloy is described in Specification 213,524, [Class 82 (i), Metals, Extracting &c.].
Patent GB-888405-A (GB)
Title: Improvements in or relating to lamp fittings
Inventor: COUGHTRIE JOHN ARMSTRONG
IPC: F21V19/00
Filed: 1959-08-07
Abstract: 888,405. Lamp laps and holders. COUGHTRIE Ltd., J. & G. Aug. 8, 1960 [Aug. 7, 1959], No. 27083/59. Class 38 (1). In a lamp fitting, incorporating a lamp holder 2, which has one or more flanges 3, and a support 1 for the lampholder, the lampholder is held in position by pivoting retaining fingers 6 to press against the flanges. The fingers 6 are pivotally held on support pillars 5, by means of screws 7, shake-proof washers 8 and spring washers 9. Projections 10 formed on the support may co-operate with apertures 4 in the lampholder to facilitate the positioning of the latter.
Patent GB-697472-A (GB)
Title: Improved method of preparing hydrogen-containing gas for the cementation of steel
IPC: C21D1/76
Filed: 1950-11-06
Abstract: A concentration gas containing at least 15 per cent each of hydrogen and carbon monoxide is prepared by reacting at above 900 DEG C air or oxygen with the vapour of one or more organic compounds containing oxygen which are either liquid under normal temperature and pressure or dissolved in water or in organic liquids not having oxygen-containing groups, e.g. hydrocarbons or amines.  The reaction may be carried out in contact with a refractory solid catalyst, e.g. nickel, nickel-copper alloy, or silicon carbide, or amorphous carbon such as wood charcoal. Alternatively, where the organic compound contains an equal number of atoms of carbon and oxygen in the molecule, e.g. methyl alcohol, it may be heated to above 900 DEG C in contact with the catalyst without air or oxygen.  The organic compound may be an alcohol, ketone aldehyde, ether, ester, or acetal, e.g. ethyl alcohol, acetone, formol, or azetropic mixtures such as 86/14 acetone/methyl alcohol, or 95 per cent denatured alcohol.  Air may be bubbled through ethyl alcohol at 50 DEG C to give a mixture 28/72 alcohol/air and this mixture may be passed through a retort in contact with a catalyst.  The mixture may alternatively be passed first through a retort containing a catalyst and then through a retort containing charcoal.  Specification 480,103, [Group XII], is referred to.