baber/WOPTO huggingface dataset:
Patent GB-256524-A (GB)
Title: Improvements in fluid meters
IPC: G01F1/28
Filed: 1926-03-27
Abstract: 256,524. Hodgson, J. L. March 27, 1926. Flow meters, pressure-actuated.-A flow meter placed in shunt across a main flow circuit containing an orifice or equivalent device for creating a difference of pressure comprises a gate 8, Fig. 5, pivoted at or about the centre of a circular cavity and controlled mainly by springs, the cavity having inlet and outlet ports on opposite sides of a baffle extending from the wall of the cavity to the gate axis. At the extreme ends of its travel the gate partially uncovers the ports and is supported by stops arranged at its centre of percussion. The controlling spring, and cam and roller transmitting mechanism, if used, are arranged in a chamber through which there is no flow, as shown in Fig. 2, and the indicating mechanism is operated by a spindle 6 passing through a gland 6A. An alternative outlet closed by a plug is provided. Specification 229,098, [Class 106 (iv), Indicating &c.], is referred to.
Patent GB-217668-A (GB)
Title: Improvements in and relating to apparatus for direction finding by wireless telegraphy
IPC: G01S1/02
Filed: 1923-03-23
Abstract: 217,668. Seymour, C., and Horton, C. E. March 23, 1923. Directive signalling.-In order to overcome the distorting effect due to masses of metal &c. near the frames of a Bellini-Tosi system or to correct for inequalities in the aerials the radiogoniometer is provided with two search coils movable together in separate fields and the effect of one of the search coils is varied in any manner to compensate for the error. As shown, the two field coils A, B are arranged as described in Specification 198,425 and are at right angles to each other. The search coils C, D, are on the same shaft and in the same plane, and are connected in series. The coil C is shunted by a coil E which may be variable and is designed to compensate for the error introduced by the position of the antennae. As alternative to the provision of coil E the search coils may have different sizes or shapes or may be formed as variometers.
Patent GB-1103351-A (GB)
Title: Method of preparing urea
IPC: C07C273/04
Filed: 1965-02-26
Abstract: In a process for the synthesis of urea from ammonia and carbon dioxide having a conversion rate of ammonium carbamate to urea of from 40 to 90%, the product stream containing urea, water vapour and ammonium carbamate is passed to a primary ammonium carbamate decomposer maintained at pressure of atmospheric to 320 p.s.i.g. and a temperature of 200 DEG  to 320 DEG F., wherein 75 to 95% of the ammonium carbamate is decomposed to ammonia and carbon dioxide, separation into gas and liquid phases is effected and the latter is passed to an evaporator decomposer maintained at such conditions that the remainder of the carbamate is decomposed to ammonia and carbon dioxide and water is evaporated from the product stream in the evaporator decomposer to give a urea concentration of 95 to 99.95% by weight, there being withdrawn from said evaporator decomposer a gas stream containing ammonia, carbon dioxide and water vapour and a separate stream comprising a urea melt containing les than 0.7% biuret.  The gas stream withdrawn from the evaporator decomposer may be scrubbed with water to provide an aqueous solution of ammonia and carbon dioxide which is subsequently stripped to give gaseous ammonia and carbon dioxide.  The liquid phase withdrawn from the primary decomposer may be contacted in the evaporator decomposer with a counter-currently flowing stream of inert sweep gas (e.g. ammonia, nitrogen or carbon dioxide) which may be separately withdrawn from the said scrubbing and stripping stages and recycled to the evaporator decomposer.ALSO:In a process for the synthesis of urea from ammonia and carbon dioxide having a conversion rate of ammonium carbamate to urea of from 40 to 90%, the product stream containing urea, water vapour and ammonium carbamate is passed to a primary ammonium carbamate decomposer maintained at pressure of atmospheric to 320 p.s.i.g. and a temperature of 200 DEG  to 320 DEG  F. wherein 75 to 95% of the ammonium carbamate is decomposed to ammonia and carbon dioxide, separation into gas and liquid phases is effected and the latter is passed to an evaporator decomposer maintained at such conditions that the remainder of the carbamate is decomposed to ammonia and carbon dioxide and water is evaporated from the product stream in the evaporator decomposer to give a urea concentration of 95 to 99.95% by weight, there being withdrawn from said evaporator decomposer a gas stream containing ammonia, carbon dioxide and water vapour and a separate stream comprising a urea melt containing less than 0.7% biuret.  The gas stream withdrawn from the evaporator decomposer may be scrubbed with water to provide an aqueous solution of ammonia and carbon dioxide which is subsequently stripped to give gaseous ammonia and carbon dioxide.  The liquid phase withdrawn from the primary decomposer may be contacted in the evaporator decomposer with a counter-currently flowing stream of inert sweep gas (e.g. ammonia, nitrogen or carbon dioxide) which may be separately withdrawn from the said scrubbing and stripping stages and recycled to the evaporator decomposer.
Patent GB-708154-A (GB)
Title: Improvements in or relating to the production of vitamin e concentrates
IPC: A61K31/355
Filed: 1952-04-02
Abstract: Vitamin E is obtained by a process in which fatty acid containing material which has been obtained by the saponification of oils or fats containing Vitamin E, is subjected to distillation so that the fatty acids pass over as distillate and the Vitamin E remains undistilled and is then concentrated, the distillation being carried out under mild conditions such that the Vitamin E is not subjected to substantial decomposition.  The freely available Vitamin E may be converted into undistillable esters thereof which remain in the distillation residue.  Distillation may be effected at 170-260 DEG C. in vacuo, preferably with the aid of steam, or by high vacuum distillation.  As starting materials there may be used vegetable oils and fats, e.g. wheatgerm oil and maizegerm oil, cottonseed, soya oil, linseed oil, sunflower oil and nut oil.ALSO:Animal feeds comprise vitamin E concentrates which have been obtained by distilling off the fatty acids from the material obtained by the saponification of oils and fats, e.g. wheat germ, maize germ, cottonseed, soya, linseed, sunflower and nut oils. The concentrates may be enriched by the addition of nutrient salts, clover, fish meal, other vitamins and trace substances.
Patent GB-1068019-A (GB)
Title: Water-insoluble polysulphonic acids
IPC: C08G2/00
Filed: 1965-02-26
Abstract: A water-insoluble polysulphonic acid containing recurring units having the structural formula <FORM:1068019/C3/1> is obtained by reacting a homo- or copolymer of acrolein with hydrogen sulphide in a medium having a pH of from 1 to 5 and oxidizing said reaction product at a temperature of from 20 DEG  to 100 DEG C. to form the polysulphonic acid.  The reaction product may be modified before oxidation e.g. by reaction with formaldehyde. Vinyl ethyl ether is exemplified as a co-monomer.
Patent GB-597044-A (GB)
Title: Improvements relating to photographic emulsions
IPC: G03C1/28
Filed: 1945-04-06
Abstract: 597,044. Sensitized silver halide emulsions. KODAK, Ltd. (Eastman Kodak Co., Fallesen, G. E., and Leermakers, J. A.). April 6, 1945, No. 8553. Drawings to Specification. [Class 98 (ii)] The spectral sensitivity of a light sensitive silver salt emulsion sensitized with a cyanine or carbocyanine dye is modified by incorporating therein a carboxylic ester containing an aromatic nucleus, the combination of the dye and ester being such that a supersensitizing effect is obtained. A test for the production of such an effect is described. The ester may have the formula R-O-CO-R<1>, wherein R and R<1> are alkyl, aralkyl, or aryl groups but are not both alkyl. Esters specified are ocresyl benzoate, guiazol acetate, guiacol phenylacetate, methyl and ethyl benzoate, methyl and ethyl phenylacetate, benzyl phenylacetate, benzyl benzoate, phenyl and benzyl acetate, methyl and benzyl salicylate, ethyl o-benzoylbenzoate, ethyl cinnamate, eugenol acetate, methyl anthranilate, methyl 3 - hydroxy - 2 - naphthoate, phenyltrichloromethylcarbinol acetate, methyl p-dimethylaminobenzoate, and methyl m-methoxybenzoate. Dyes specified are thia-, selena-, thiaselena, oxathia- and oxaselena-carbocyanines, particularly 3 : 3<1>- dialkyl dyes of these classes, and specifically 3 : 3<1> - diethyl - 9 - methylselenacarbocyanine bromide. The benzene nuclei of the dyes may be substituted by chlorine, alkyl, alkoxy, or dialkylamino and may have fused-on benzene rings. The ester may be added to the emulsion with gelatine at the beginning of digestion, or may be added to the washed finished emulsion just prior to coating. More than one ester may be used. More than one cyanine dye may be used, and the dyes themselves may form a supersensitizing combination. Specifications 498,290, 498,291 and 515,372 are referred to.
Patent GB-496363-A (GB)
Title: Improvements in or relating to photographic flashlights
IPC: F21K5/08
Filed: 1938-03-21
Abstract: 496,363. Flash - light lamps. SCHWARZE, P. March 21, 1938, No. 8558. Convention date, April 17, 1937. [Class 9 (ii)] Photographic flashlights of the type which produce light by reaction of suitable substances enclosed in gastight vessels have their lighting effect intensified by the combination therewith of one or more optical lenses. As shown in Fig. 1, the flashlamp 1 comprises a metal box 2 which is closed by a window 3 and is filled with oxidizable foils, or wires or the like and with oxygen gas. A frame 5 carrying a condenser lens 4 is secured to the box 2 by springy stirrups 6. Instead of a condenser lens, a similarly acting combination of two or more lenses may be used. Fig. 2 shows a modification in which a container 7, adapted to receive a gastight box-shaped flashlight lamp, is provided with a window 3 in front of which is arranged the lens 4. If desired, the window 3 may be omitted. The container is provided with a handle 8 which can be adapted for holding a battery for the ignition. Lenses, preferably of different focal length, may be arranged on both sides of the container for use at different ranges. The Specification as open to inspection under Sect. 91 comprises also arrangements in which the top part of the handle 8 instead of the container 7 is adapted to support the flashlight lamp and in which the container 7 is enlarged so as to be capable of receiving bulb-shaped flashlights. This subject-matter does not appear in the Specification as accepted.
Patent GB-1161589-A (GB)
Title: Improvements in and relating to Galvanometers
Inventor: ROBIN MICHEL
IPC: G01R5/04
Filed: 1968-02-22
Abstract: 1,161,589. Electric meters. ETABLISSEMENTS ED. JAEGER S. A. Feb. 22, 1968 [ Feb. 24, 1967], No. 8628/68. Heading G1Q. The central magnet assembly of a moving coil galvanometer has polepieces 2, 3 which are held in place by a one piece moulded member 4 of plastics material. The moulded member is itself supported by an intermediate casing member 13, also of plastics material, which is fixed to the remainder of the casing by U-shaped spring clamps. The bearings for the spindle 7 of the meter coil 5 are supported in the end members of the casing. Movement of the spindle drives a further spindle 12 carrying the instrument pointer 15 through suitable gearing 17, 18. Zero adjustment may be achieved by moving the scale 16, together with a printed circuit power carrying unit 23 which is secured with the dial to the end member 8.
Patent GB-732358-A (GB)
Title: A new or improved elastic belt or strap
IPC: A41F9/00
Filed: 1952-04-04
Abstract: 732,358. Belts. WINTER, E. April 2, 1953 [April 4, 1952], No. 8685/52. Class 141. [Also in Group VIII] A method of producing an elastic belt or strap comprises expanding an elastic strip and securing it in that condition by adhesive to a surface of a wider non-elastic flexible strip capable of taking up on contraction an irregular crinkled condition and covering opposite sides of the elastic strip, subjecting the assembly to pressure and maintaining said elastic strip expanded until the adhesive has dried. The elastic strip, e.g. rubber or elastic fibre, may be between two flexible plies, e.g. leather, plastic &c., one of which has a projecting margin folded over and adhered to the other face of the elastic strip or to the second ply which has a width not exceeding that of the elastic strip and is secured by adhesive applied to the other face. In another embodiment, a flexible strip at least double the width of the elastic strip is folded over and adhered to both sides of the elastic strip.
Patent GB-526509-A (GB)
Title: Improvements in or relating to buffers for pit tubs or corves
IPC: B61F19/04
Filed: 1939-03-18
Abstract: 526,509. Buffers for tramway vehicles. HARRISON, S., and FOSTER, H. March 18, 1939, No. 8687. [Class 103 (v)] Buffers for pit tubs, cowls and the like comprise one or more leafspring buffer elements 2 fitted on each end of the tub 1. The springs may be single or multi-leaf with free ends 2 affording circular contact with those of adjacent tub springs, In place of the two quarter springs shown, one semi-elliptic spring may be used.
Patent GB-1087169-A (GB)
Title: A facsimile system transmitting unit
IPC: H04N1/024
Filed: 1966-02-28
Abstract: 1,087,169. Prism mountings. MAGNAVOX CO. Feb.28, 1966 [March 2, 1965], No. 8745/66. Heading G2J. [Also in Division H4] A support for a prism 60 enabling orientation thereof around two orthogonal axis, comprises a twisted, basically S-shaped sheet of resilient metal, a first screw 104 connecting adjacent metal portions 98 and 100 to vary the attitude of the prism about an axis parallel to its faces, and a second screw 102 connecting portions 98 and 102 to vary the attitude of the prism about a second axis orthogonal to the first.
Patent GB-811087-A (GB)
Title: Improvements in or relating to electroluminescent cells
IPC: H05B33/20
Filed: 1957-03-18
Abstract: 811,087. Electroluminescent materials. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March, 18, 1957 [March 22, 1956], No. 8780/57. Drawings to Specification. Class 39(1). An electroluminescent material comprises a phosphor not normally electroluminescent reponsive to an applied alternating field and having a relaxation time greater than one half the cycle period of the field and an additive consisting of finely divided metallic and/or semi-conductive material mixed in contacting relationship with the phosphor, the additive having sharp edges and a relaxation time no greater than one half the cycle period. The phosphor so prepared may be sandwiched with a second layer of dielectric between electrodes or the dielectric material may be mixed with the prepared phosphor. The starting phosphor may be photo or cathode-luminescent. Suitable starting phosphors (matrix-activator) are ZnS-Ag; ZnS-Mn; (ZnCd)S-Cu; (ZnCd); S-Ag; CaS-Bi ; (CaSr)S-Bi; Zn 2 SiO 4 -Mn- Cd 2 SiO 4 -U-Sm; Zn 2 SiO 4 -V; CaWO 4 -Pb; Cd 2 B 2 O 5 ; CaPO 4 SO 4 -TC; Anthracene; Zn- S-Bi; Be(PO 4 ) 2 -Sn; Li 4 SO 4 -Ti. Suitable additives are Cu, Mu, Co, Z, Ti, Ni, Tl, Fe, Bi Be, Th, Nb, Sb, and Al or semiconductors such as the oxides of zinc, chromium, iron or nickel, the sulphices of copper or silver, stanuous or stanuic arsenide or iron hydroxide.
Patent GB-109981-A (GB)
Title: An Instrument for Instantaneous Communication of Time Intervals and Angles for use in Gun Laying, and Firing and Fuse Timing.
Inventor: HANKS FREDERICK ARCHER
IPC: F41G3/14
Filed: 1916-06-22
Abstract: 109,981. Hanks, F. A. June 22, 1916. Plane-trigonometry calculators.-Relates to the apparatus described in Specification 8031/15 for determining the range and speed of an aerial or other target and the corresponding sighting adjustments and fuse times. According to the invention positive connexions are provided between the apparatus at the two stations and a special instrument is provided for determining the time of firing. In the construction shown in Fig. 2, the apparatus at the two stations are connected by cables n. The spindle h carrying a pointer i also carries a drum connected by the cables to a drum k at the other station, the drum k being keyed to a spindle carrying a pointer m. Chains or cranks and connecting-rods may be provided instead of cables. The instrument for determining the time of firing consists of a clock dial, Fig. 1, preferably graduated in ranges, having a stop hand b, and an adjustable fuse-timing ring c. The clock being stated, the zero mark of the time ring is set at the range, and the gun is fired when the hand reaches the fuse time.
Patent GB-871858-A (GB)
Title: Spectral flame burners and systems
IPC: G01N21/72
Filed: 1960-03-14
Abstract: 871,858. Gas burners. TECHNICON INSTRUMENTS CORPORATION. March 14, 1960 [April 3, 1959], No. 8866/60. Class 75(1). A burner for use in the spectroscopic analysis of a liquid comprises means for supplying a combustible mixture of cyanogen and oxygen in equimolar proportions to form the flame and means for supplying the liquid to the base of the flame. The oxygen and cyanogen are supplied from cylinders L1, L2 through needle valves S2, S4, a mixer W containing glass beads, and capillary tubes Y to the lower end of a platinum or palladium capillary burner tube G soldered into a fitting R screwed into the body M of the burner. The burner tube G is adjusted vertically by rotating the fitting R and horizontally by means of screws T. The flame is maintained stable at high gas flow rates by a ring of flames from an auxiliary burner also supplied with a mixture of oxygen and cyanogen from the cylinders L1, L2 but at a lower flow rate. Three apertures K allow air to enter the space surrounding the burner tube G. The liquid to be analysed is contained in a microbeaker N and is conveyed by a glass capillary tube Q, a flexible capillary tube P and a silica capillary tube H to the flame. The liquid is aspirated into the flame by the flow of the burner gases. The liquid may be contained in a pipette and forced through the capillary tubes by gas pressure applied to the pipette. The burner is cooled by water circulating in a coiled pipe E.
Patent GB-1099104-A (GB)
Title: New nitrothiazole compounds and process for their manufacture
IPC: C07D277/58
Filed: 1966-03-01
Abstract: The invention comprises compounds of formula TCOCOR, wherein T is a 5-nitro-thiazolyl - 2 - amino group optionally substituted on the amino-nitrogen atom or in the 4-position of the thiazole ring and R is a free or substituted amino group, acid addition salts of those compounds having a basic nitrogen atom in the group R, and their preparation by (a) reaction of a compound of formula TCOCOX1, wherein X1 is a halogen atom, with a compound RH, or (b) reaction of a compound T1COCSR, wherein T1 is a 5-unsubstituted-thiazolyl-2-amino-group, with nitric acid in the presence of concentrated sulphuric acid.  Compounds of formula T1COCSR defined above are prepared by reaction of a 2-dichloro-acetylamino-thiazol with a compound RH and sulphur.  2 - Dichloroacetylamino - thiazole is prepared by acylation.  The compounds of the invention have anti-parasitic and anti-bacterial activity and may be used in pharmaceutical or veterinary compositions in forms suitable for oral, parenteral or topical administration or in animal feeds.
Patent GB-181153-A (GB)
Title: Improved process for rendering calcium hypochlorite stable
IPC: C01B11/06
Filed: 1921-03-23
Abstract: Calcium hypochlorite is rendered stable by mixing it, in the dry state, with purified sodium chloride, free from magnesium chloride and other hygroscopic impurities.  The proportions are such that the product contains at least 10 per cent of active chlorine.  The mixtures can be moulded into shapes.
Patent GB-127717-A (GB)
Title: Improvements in or relating to Recuperators for Furnaces.
IPC: F28F21/04
Filed: 1918-06-03
Abstract: 127,717. Smeeton-Wright Furnaces, Ltd., and Wright, T. June 3, 1918. Regenerators, especially intended for steel and other melting furnaces, are built of refractory tubes A of good-conducting material and of any suitable, but always uniform, cross-section without flanges. The ends of the tubes are provided with loose collars or bricks B, which form the walls when they are fitted together, for example, in the manner shown in Fig. 2. The collars are of different material from the tubes, such as of fire-brick, and have each one or two annular chaainels b<1>, preferably undercut, to receive fire-clay or other cement to hold the tubes in position. Triangular bricks C complete the wall at its sides and bottom.
Patent GB-1058543-A (GB)
Title: 16-methylene-steroids
IPC: C07J75/00
Filed: 1964-03-04
Abstract: Novel steroids of the formula <FORM:1058543/C2/1> (wherein R1 is H2 or O; R2 is H or acyl; and R3 is H or a C1- 4 saturated or unsaturated aliphatic hydrocarbon group) are prepared from the corresponding 17-ketones by standard procedures.  The D 4-3-keto group or D 4-3-unsubstituted group may be present in the starting material or may be formed before or after the 17-transformation. A D 5-3-ol may be oxidized by the Oppenauer method, a D 1,3,5(10)-3-ol may be subjected to Birch reduction and acid hydrolysis, and a D 5(10)-3-ol may be oxidized and treated with an acid, and the resulting D 4-3-one may be thioketalized and reductively split to give a D 4-3-unsubstituted product.  The 3-substituent in the starting compound may be temporarily protected, e.g. a 3-hydroxy group may be esterified or etherified and a D 4-3-keto group may be converted to an enol ester or enol ether grouping. 17-Ols may be acylated.  16 - Methylene - 17 - keto - steroids used as starting materials are prepared by conversion of 16-unsubstituted 17-keto steroids into 16-di-substituted aminomethyl steroids by the Mannich reaction and then steam distillation of these or treatment with silicagel.
Patent GB-1294123-A (GB)
Title: Temperature sensing devices
Inventor: GUY KENNETH THEODORE
IPC: G01K5/48
Filed: 1969-02-20
Abstract: 1294123 Valves ROTAX Ltd 5 Feb 1970 [20 Feb 1969] 9154/69 Heading F2V [Also in Division G1] A temperature responsive actuator, e.g. for a pressure relief valve, comprises an inner tubular member 16 of material having a relatively low coefficient of thermal expansion, e.g. "Invar" (Trade Mark), and an outer tubular member 12 of material having a relatively high coefficient of thermal expansion, e.g. beryllium copper alloy, the two members 12, 16 being connected together at one end by a cup-shaped member 13, the other end of the outer member 12 being secured to a housing spigot 11 and the other end of the member 16 being coupled to set the valve, the arrangement being such that fluid under pressure may be passed through the inner member 16 from apertures 20 therein to leave via a nozzle 24 in the member 13, the effect of the nozzle causing ambient fluid to be drawn through the space between the inner and outer members 16, 12 through apertures 25 in the spigot 11 and 14 in the member 13 to increase the sensitivity of the actuator. A groove 19 and passages 21 in the spigot 11 provide for the entry of fluid to the interior of the tubular member 16, and the free end of this member is closed by a cap 28 which positions a slidable plug 31 in the valve body 27 to set the relief pressure of the valve which comprises a valve element 32 loaded by a spring 33 held in compression between the element 32 and the plug 31.