baber/WOPTO huggingface dataset:
Patent GB-1407884-A (GB)
Title: Method and apparatus for controlling or monitoring the operation
IPC: G01T1/178
Filed: 1973-05-03
Abstract: 1407884 Monitoring uranium-enrichment process URANIT URANISOTOPENTRENNUNGS GmbH 3 May 1973 [4 May 1972] 20984/73 Heading G1A In a uranium-enrichment plant employing gaseous uranium compounds, operation is monitored and possibly controlled by sampling the gas or its decay products, analyzing the radiation emitted thereby and identifying the age of the components of the gas. A Nal detector probe connected to a multi-channel analyzer is provided at at least one point in the plant and sampling may be by a cooling trap or a filter (for non- gaseous decay products). When the gaseous compound is UF 6 , the characteristic α-ray spectra exhibits five main peaks, three due to thorium isotopes and two to uranium. Graphs are given, Figs. A, B and C (not shown) which illustrate the differences in the amplitudes of the respective peaks, for a freshly distilled, a decayed and a highly enriched sample. By monitoring one particular thorium peak, the degree of enrichment is strongly indicated, and subsequent control can be effected. After plant shut-down, filters having traces of thorium fluoride may be analyzed to give isotope composition information.
Patent GB-391427-A (GB)
Title: Improvements in the manufacture of cellulose derivatives
IPC: C08B3/00
Filed: 1931-07-22
Abstract: Cellulose acetates and other lower fatty acid esters of cellulose are produced by reacting on cellulose with a lower fatty acid in the presence of a relatively large proportion of esterification catalysts or condensing agents, preferably in a quantity by weight greater than the acetic acid &c. and in quantity considerably greater than the weight of the cellulose, for example, more than 4-8 times such weight.  As the catalyst &c. may be used fairly concentrated sulphuric acid or similar acting substance, for example, sodium or potassium bisulphate or phosphoric acid, preferably sulphuric acid of more than 60 per cent concentration, for example, of 75 per cent concentration. Generally the acetic acid or other lower fatty acid is used in quantity theoretically larger than that required for esterification, in order to dissolve the ester as it is formed; but lower proportions of acetic acid may be employed, and the reaction carried out in the presence of a diluent such as benzene, ethyl ether or isopropyl ether in order directly to obtain a solid product. Relatively small amounts of other esterifying agents such as acetic anhydride may be present during the esterification. The cotton linters, wood pulp, &c. may be subjected to pretreatment with acetic acid &c. in liquid or vapour form, and the cellulose esters produced may be after-treated, for example, by heating with water under pressure in order to stabilize the product, or the latter may be subjected to further esterification by the normal methods.  In examples, the mixture of acetic or formic acid and the catalyst is cooled to 0 DEG  C. or lower before the addition of the linters, and the esterification is conducted at temperatures of 10-15 DEG  C. or lower.
Patent GB-1009375-A (GB)
Title: Measuring by interference
IPC: G01B21/06
Filed: 1962-05-31
Abstract: 1,009,375. Interferometers. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. May 31,1962 [May 31, 1961; May 23, 1962], No. 21108/62. Heading G2J. [Also in Division G1] In a known arrangement, Fig. 1, Young's double slit is replaced by three equally spaced parallel slits F 0 , F 1 , F 2  arranged in front of a monochromatic light source S and interference fringes are observed in the focal plane S<SP>1</SP>B<SP>1</SP>. The invention modifies this by replacing the slit at source S by a series of uniformly spaced parallel slits, the slit spacing being such that in the image phase the spacing is equal to the distance between one maximum and the next but one in the interference pattern. There may be two series of spaced slits M, M<SP>1</SP>, Fig. 5, longitudinally and laterally spaced. To measure the difference of refractive index of two materials, one of the materials is placed in front of slit F 0  and the same thickness of the other material placed in front of slits F 1 , F 2 , Fig. 7, not shown, an appropriate path length difference being introduced by moving the series of slits M,M 1  together along the optical axis or by displacing the plane of focus. The curvature of a reflecting surface #, Fig. 9, is measured by using a semi-reflecting surface # 1  and arranging the members M, M<SP>1</SP> in the positions shown in dotted lines. A photo-sensitive transducer may be used, the image being directly analyzed by electronic scanning. The modulation of the interference pattern required may be obtained by moving the member or members M, M<SP>1</SP> uni-directionally or back and forth in their own planes in a direction perpendicular to the length of the slits.
Patent GB-869241-A (GB)
Title: Improvements in or relating to couplings or connectors for pipes and tubes
IPC: F16L33/22
Filed: 1958-07-02
Abstract: 869,241. Pipe couplings. BATEMAN, A. S., and WILLEY & CO. Ltd. June 29, 1959 [July 2, 1958], No. 21253/58. Class 99(1). A coupling for pipes made of a slightly elastic or resilient material comprises a body 10 and a spigot 15 detachably connected to the body by means preventing rotation of the spigot relatively to the body and adapted to be engaged in an open end of the pipe, a sleeve 30 for engagement over the end of the pipe, and means for effecting relative axial movement of the sleeve and spigot so as to cause the pipe to be gripped between them, the spigot and sleeve being respectively externally and internally tapered in the same direction. As shown, the body 10 has a tubular, internally screw-threaded branch 12 for the attachment of a fitting and integral therewith a spigot 16, the spigot 15 being formed with a flange 20, between which and the body is a rubber sealing washer 22 ; the spigot 15 has diametrically opposed projections 23 engageable between any one pair of opposed slots between four, radially-projecting lugs 24 on the body. The sleeves 30, 31 are screwed on to the body to compress the tubes 17, 18. In modifications (a) the body is in two parts secured together by a screwed plug and socket connection, and (b) axial movement of the sleeves relative to the body is effected by interengaging cam surfaces on the two members.
Patent GB-188742-A (GB)
Title: Improvements in or relating to door fasteners, and to the manufacture of the same
IPC: E05C3/12
Filed: 1921-08-11
Abstract: 188,742. Carter, G. F. Aug. 11, 1921. Latches, lift and thumb.- Relates to a lift-and-thumb latch of the type in which the lever f is pivoted by trunnions e, between a raised portion n on an extension c of the handle a and the doorplate b, and consists in providing the extension c of the handle with a cross-shaped opening h to facilitate insertion of the trunnions assemblage.
Patent GB-618067-A (GB)
Title: Improvements in and relating to hinge pins, retainer pins and the like provided with self-locking means
IPC: F41A17/38
Filed: 1946-07-17
Abstract: 618,067. Hinge &c. pins. MARTIN, J. July 17, 1946. No. 21382. Addition to 567,697. [Classes 44, 65 (ii), 89 (i) and 89 (ii)] Hinge and retaining pins according to the parent Specification have the locking member formed as a spring wire pointed at 11 for insertion in the axial bore 5 and bent at 12 to form the deflected free end 13 with a kink 14 projecting through a slot in the wall of the hollow end of the pin. The kink is shaped to permit the wire to yield automatically on forcible insertion or removal of the pin. The, end 15 may be extended to facilitate release of the catch.
Patent GB-271304-A (GB)
Title: Improvements in and relating to manometric metering devices
IPC: G01F1/37
Filed: 1926-08-31
Abstract: 271,304. James, R. W., (Brown Instrument Co.). Aug. 31, 1926. Liquid - level pressure gauges; with recording apparatus.-In order to facilitate the production of a flow meter of such a capacity that its full scale range is employed, sets of standard scaled record sheets, manometers or manometer parts, and orifice plates are provided, and a selective combination is made with invariable parts. In the form shown, the manometer has legs d, d<1>, a valve 0 permits the utilisation of the whole cross-sectional area of the leg d<1>, or of that of a tube E<2>, and a set of tubes E<2> varying in diameter is provided, so that the manometer mav be adjusted to give the same maximum reading for different differential pressures. The movement of a float G is transmitted to a recording arm I by an impedance bridge, comprising coils h, ha, H, HA, each pair being connected in series between alternating current mains 1, 2 and magnetic cores m, M and a conductor 3 being provided. The record sheets are provided with scale ranges of different amplitudes, preferably such that the common logarithms of the numbers representing the maximum flow values differ bv equal fractional increments, and that the sum of the increments for each series is unity.
Patent GB-152320-A (GB)
Title: Regulating arrangements for the slow running device of carburetters for internal combustion engines
IPC: F02M3/09
Filed: 1920-07-16
Abstract: 152,320. Soc. du Carburateur Zenith. Oct. 4, 1919, [Convention date]. Spray carburettors.-In a carburettor having a separate slow-running nozzle, the richness of the mixture supplied by this nozzle is varied by adding secondary air thereto under the control of a needle valve. The nozzle 2 may be of the submerged jet type, air being admitted through a hole 3 to form the mixture; additional air enters past the valve 7 through the pipe 21, the maximum quantity being limited by the valve 15. The valve 15 may be dispensed with and the nozzle need not be submerged. The valve handle 11 may have an adjustable stop to limit its movement. Specification 100,367 is referred to.
Patent GB-1432082-A (GB)
Title: Ink jet printer
IPC: B41J2/185
Filed: 1974-05-15
Abstract: 1432082 Ink jet printers INTERNATIONAL BUSINESS MACHINES CORP 15 May 1974 [27 June 1973] 21508/74 Heading B6P An ink printer is characterized by means for enveloping its ink nozzle(s) in a fluid to prevent clogging of the nozzle(s) during shutdown. As particularly described a movable chamber may be used to cover the nozzle(s), the nozzle(s) being immersed in liquid, e.g. detergent in water, or enveloped in the vapour of a liquid also in the chamber. Alternatively the nozzle may be rotatably mounted for immersion in a liquid when not in use.
Patent GB-625523-A (GB)
Title: Coking of carbonaceous materials with the production therefrom of volatile fuels
IPC: C10B55/10
Filed: 1947-08-07
Abstract: 625,523. Carbonizing process. STANDARD OIL DEVELOPMENT CO. Aug. 7, 1947, No. 21540. Convention date, Dec. 14, 1946. [Class 55 (i)] In a carbonization process for producing volatile fuels, carbonizable materials such as heavy oil residues, asphalts, coal, lignites, oil shale or tar-sands are passed with a fluidized mass of heated finely divided solids through a reaction vessel in the form of an elongated narrow tube, the temperature and contact time in the reaction zone being controlled to give substantially complete carbonization without substantial cracking of the volatile products, which are discharged with the coke contaminated solids into a disengaging zone, from which they are withdrawn separately. In one form, solid carbonizable material from hopper 70 or liquid from line 1 is preheated in furnace 3 to 500-850‹ F. and injected into the transfer line reactor 10 by a propelling gas from line 5. Finely divided process coke heated to 1000-1600‹ F. enters the reactor from standpipe 12 and passes, with the incoming material, as a turbulent mass up the tube 10, wherein carbonization at 850- 1200‹ F. occurs. Depending on the raw material, the slope, diameter and length of the tube and the feed rates are chosen to give a contact time of 0.5-15 seconds and a reactor pressure of 1-50 lb. per sq. inch. The mixture of coke and volatiles discharges into vessel 20, cracking of the volatiles being prevented by quenching gas entering the vessel through lines 28 or by a quenching liquid entering the upper part of tube 10 through line 77. Volatiles are removed through line 34 and coke by standpipe 36. Air or oxygen entering line 45 by line 43 meets the coke and propels it into a vessel 50 where partial combustion occurs, the heated coke being withdrawn through standpipe 12 to re-enter the reactor 10. If desired air or oxygen may be injected into reactor 10 to generate additional heat by partial combustion. Specifications 586,391 and 586,992 are referred to.
Patent GB-216234-A (GB)
Abstract: 216,234. Heath, F. G. March 1, 1923. Knitting. - appliances, hand.- Knitting pins are made in two or more telescopic portions, the outermost member 1 carrying the point 2 while the innermost member 5 carries the knob 7. Each inner member may be split as at 6, 8 or may be provided with other resilient means for retaining the members frictionally in adjusted position.
Patent GB-680872-A (GB)
Title: Improvements in or relating to frequency modulation radio altimeters
Inventor: BUCKS KARL EDUARD
IPC: G01S13/34
Filed: 1950-09-01
Abstract: 680,872. Radiolocation; valve circuits. MINISTER OF SUPPLY. July 11, 1951 [Sept. 1, 1950], No. 21664/50. Classes 40 (vi) and 40 (vii). A radio altimeter of the type transmitting frequency modulated waves and capable of receiving response signals providing output beat frequency signals falling within a predetermined frequency band includes means for increasing, under the control of the strength of the received signals, the ratio of the response of the receiver to the higher frequency signals within the band to the response to the lower frequency signals within the band as the mean amplitude of the signals decreases. In the preferred embodiment, the beat frequency signals are developed across the load 5000 of diode VI. They are fed at " a " and " b " respectively to a high-pass network feeding it output through the transformer T, and to a low-pass network feeding directly to the secondary of transformer T. The high-pass network has in series with it a crystal gate X provided with a fixed bias voltage at CB and arranged so that as the D.C. voltage which appears across the load resistance increases with increase of signal strength the impedance of the crystal increases and the proportion of the signal fed to the high-pass network is reduced. The output of the high- and low-pass networks are combined at the secondary of transformer T and fed to V2 and V3 for amplification. A feed-back channel is provided from the cathode of V3 to the point A arranged so that there is a decrease in the signal voltage fed back and therefore an increase in gain with increase of signal frequency. Curves are given, Fig. 2 (not shown), presenting gain in terms of frequency for various values of input signal strength, the inductance of the secondary of the transformer T being chosen to give a response peak at 10 kc/s. It is arranged that the gain of V2 is reduced for high amplitude signals due to the D.C. voltage developed across the diode load being applied through channel b to the grid of the valve.
Patent GB-165113-A (GB)
Title: Additions and improvements relating to auxiliary air valves for internal combustion engines
IPC: F02D9/00
Filed: 1918-12-24
Abstract: 165,113. Wilmart, C. A., and New Motor Speciality (Empire Automatic Petrol Economizer) Co., Ltd. Dec. 24. 1918. Addition to 10799/14, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. Heating charge.-The auxiliary air valve b, described in the parent Specification, is supplied with heated air and may have a multi-tubular air heater a detachably secured to it. Hot air or exhaust gases pass through the heater.
Patent GB-1004896-A (GB)
Title: Valved sacks
IPC: B65D30/24
Filed: 1964-05-26
Abstract: 1,004,896. Valved sacks. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. May 26, 1964 [June 26, 1963], No. 21728/64. Heading B8K. A valved sack is formed from tubular plastics sheet by partially sealing an end 7 and folding in the unsealed portion 8 around a tubular valve 6 which has a filling opening 4 and a vent 5. The tubular portion may be formed by infolding one end of the tubing, after sealing it at 3, and then making a second partial seal 7. Alternatively it may be formed from two sheets of material partially seamed at the lower edge and then seamed into the sack mouth. The portions 8 are preferably infolded and secured to the walls of the tube. Valves may be formed at diagonally opposed corners. The seams may be formed by stitching but are preferably made by heat sealing, suitable materials for the sacks being polythene, polyvinyl chloride film and polypropylene film.
Patent GB-731429-A (GB)
Title: Improvements in or relating to thermopiles
IPC: H01L35/00
Filed: 1951-09-17
Abstract: 731,429. Thermo-electric batteries. TURCK, J. Sept. 17, 1951 [Sept. 20, 1950], No. 21792/51. Class 53. [Also in Group XL (b)] The hot junction of a thermocouple comprises elements 9, 10 which are supported over an opening 6a in an insulating support 6, carried on conductors 7, 8 passing through the base of an exhausted container 1. A disc 5 of a material transparent to infra-red radiation closes the upper end of the container. The disc 5 may be made of rock salt, potassium bromide or iodo-bromide of thallium. The elements 9, 10 are welded at 11 to the conductors 7, 8 and are placed in position by depositing the metals on a cellulosic film covering the support 6 and subsequently removing the film, for example by dioxane vapour.
Patent GB-517200-A (GB)
Title: Improvements in or relating to wave transmission systems
IPC: H04B1/58
Filed: 1938-07-22
Abstract: 517,200. Two-way transmission. STANDARD TELEPHONES & CABLES Ltd., and MEERS, R. A. July 22, 1938, No. 21840. [Class 40 (iv)] [Also in Group XL] In a thermionic amplifier in which negativefeedback is so provided that the valve operates into its optimum impedance and has any desired output impedance, a four-terminal filter or like network having a characteristic impedance equal to the valve optimum impedance is inserted between the valve and the load circuit. The Figure shows a two-way repeater in which networks F1, F2 are provided, and may be filters, equalisers or attenuators. Negative feedback is provided by potentiometer P1, and hybrid coil output transformers T1, T2 are provided to match the associated lines. A ringer circuit may be provided in the input comprising a relaying device to repeat ringing current to the hybrid coil of the outgoing line since ringing current cannot pass through the speech circuit.
Patent GB-686802-A (GB)
Title: An improved furniture unit
Inventor: CHARLES MAXWELL ROSCOE DE BUIR
IPC: B60P3/36
Filed: 1950-09-05
Abstract: 686,802. Cabinets. BERKELEY COACHWORK, Ltd. Sept. 5, 1951 [Sept. 5, 1950], No. 21873/50. Class 52(i) In a cupboard, to hold articles of contrasting kinds, e.g. food and clothing, separate, adjacent compartments, are provided, a subsidiary sliding door, closing all but one of the compartments, and a main door closing the cupboard. As shown, a cupboard for use in a caravan is provided with a door 8 sliding in grooves in vertical frame members 10 of a main door 7 which is hinged at 12 and has locking means 13. When the main door is opened the contents of only one compartment are visible. Specification 686,801 is referred to.
Patent GB-1308528-A (GB)
Title: Punching device with adjustable cutters
IPC: C14B5/00
Filed: 1970-05-06
Abstract: 1308528 Cutting-out device W RICKENBACHER 6 May 1970 [8 May 1969] 21874/70 Heading B4B In a punching device for cutting out planar piece goods such as textiles, leather, rubber, paper or plastics, the cutters 5, Fig. 1 are carried by cutter beams mounted on cutter plates 3 in such a way that when the cutter plates 3 are moved relative to each other, pairs of the cutters slide or pivot relative to each other to allow patterns of various shapes and sizes to be cut. As described, the cutter plates 3, Fig. 2, are adjusted relative to each other by piston 9 and cylinder 10 devices controlled by compressed air. The piston 9 has a rack 13 engaging with a pinion 14 which is engaged by a pawl 18 controlled by an electromagnet 15. Movement of the piston is thus only allowed when the electromagnet 15 is energized. Return of the piston 9 is by springs 12. A rod-like resistor 21 on one plate 3 engages a contact 22 on the other plate to give an indication of the relative positions of the plates. Cutters 5 which are relatively slidable, Fig. 4, are mounted with their cutting edges in contact on beams 4, which are urged together by a pressure plate 24 and distance screw 24a via balls 26. Cutters which are relatively pivotable are mounted on beams the ends 28, 29, of which, Fig. 5g, are carried by relatively rotatable concentric bearing rings 30, 31. The ends of the cutters 5 lie on the pivot axis 27. The relative positions of the plates 3 and hence the sizes and shapes of the patterns cut may be controlled from punched cards or tape.
Patent GB-1453868-A (GB)
Title: Apparatus for use in diagnosing the condition of the heart of an individual
IPC: A61B5/332
Filed: 1973-12-04
Abstract: 1453868 Apparatus for diagnosing the condition of the heart of an individual SURVIVAL TECHNOLOGY Inc 4 Dec 1973 [4 Dec 1972]  21903/76 Divided out of 1453866 Heading G1N(E) This Application is a divisional of Specification 1453866. The particular description is the same, but the claims deal with the combination of an electrocardioscope and an electrocardiograph in a central receiving station.
Patent GB-931418-A (GB)
Title: Improvements in or relating to antihaemorrhagic pharmaceutical compositions
Inventor: ELLIS ROY ARTHUR
IPC: A61K38/095
Filed: 1961-06-16
Abstract: Injectable pharmaceutical compositions for the control of haemorrhage after labour comprise oxytocin and ergometrine, methyl ergometrine or physiologically acceptable salts thereof with organic or inorganic acids.  The compositions preferably contain from about 0.4 to about 0.6 mg. of ergometrine or the equivalent per 5 I.U. of oxytoxin and have a pH of 3.2 \sB 03.
Patent GB-922763-A (GB)
Title: Loading machine
IPC: E21D9/12
Filed: 1959-06-26
Abstract: 922,763. Loading machines. SALZGITTER MASCHINEN A.G. June 26, 1959 [July 7, 1958], No. 21936/59. Class 78 (1). A loading machine comprises a platform 3, pivotable by means of hydraulic rams 12 about an axis 13 on a frame 5 mounted on endless tracks 1, and supporting a conveyer belt 2 on to which material is loaded by means of hydraulically-reciprocable arms 4, 4<SP>1</SP>. The arms 4, 4<SP>1</SP> comprise supports 14, 14<SP>1</SP>, which are reciprocated on the platform 3 by means of hydraulic rams 18, 18<SP>1</SP>, and grabbing claws 15, 15<SP>1</SP> which are pivoted about axes 16, 16<SP>1</SP> on the supports 14, 14<SP>1</SP> by hydraulic rams 19, 19<SP>1</SP>. The grabbing movements of the claws 15, 15<SP>1</SP> may be either alternate or simultaneous, and the working speed of the rams 18, 18<SP>1</SP> may be varied.