baber/WOPTO huggingface dataset:
Patent GB-1348422-A (GB)
Title: Compositions for regulating plant growth containing quaternary ammonium salts
IPC: A01N/
Filed: 1971-04-19
Abstract: 1348422 Quaternary ammonium salts FUJISAWA PHARMACEUTICAL CO Ltd 19 April 1971 [25 March 1970 28 March 1970 (2) 6 April 1970 2 June 1970] 24929/71 Heading C2C The invention comprises quaternary ammonium salts of the formula wherein A is alkylene, alkenylene or alkadienylene; R 1  and R 2  are each alkyl groups which may be linked directly or by an oxygen atom to form a saturated heterocyclic ring; R 3  is alkyl, halo-alkyl, alkynyl, phenylalkyl (which may have halogen substituents in the ring), alkenyl, hydroxyalkyl, carboxyalkyl or alkenyloxycarbonylalkyl ; R 4 , R 5  and R 6  are each alkyl groups having 1 to 3 carbon atoms; X is an acid residue; and the cyclohexyl ring may have one double bond provided that when all three of R 1 , R 2  and R 3  are alkyl groups, at least one of them is an alkyl group having 7 to 10 carbon atoms. They may be prepared by reacting a tertiary amine of formula with a compound of formula R-X in the presence or absence of a metal salt. They may be used as active ingredients in plant growth regulating compositions.
Patent GB-745851-A (GB)
Title: Improvements relating to 3-(4-chloro-7-hydroxy-3-methylphthalide-3)-5, 6, 8-trihydroxy-a-tetralone and the preparation thereof
IPC: C07D307/88
Filed: 1953-09-09
Abstract: The invention comprises 3 - (4 - chloro - 7-hydroxy - 3 - methylphthalide - 3) - 5 : 6 : 8-trihydroxy-a -tetralone, and a method of preparing it by heating the corresponding 7-a -tetralone-carboxyamide with a basic metal hydroxide.  The starting material which is also new, is obtained from chlortetracycline by the action of a strong base, followed by a strong acid.  In examples, chlortetracycline which has been converted to the 7-carboxyamide of the above product by the action of caustic soda followed by concentrated sulphuric acid, is treated with caustic potash in ethylene glycol, and 2-ethoxyethanol, to give 3-(4-chloro-7-hydroxy - 3 - methylphthalide - 3) - 5 : 6 : 8-trihydroxy-a -tetralone.
Patent GB-815590-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: HOWE ERIC LEWIS
IPC: F02C7/30
Filed: 1955-08-31
Abstract: 815,590. Combustion apparatus; preventing corrosion. BRITISH PETROLEUM CO. Ltd. Oct. 18, 1956 [Aug. 31, 1955], No. 24982/55. Class 51 (1). In order to reduce the deposition of sodium and vanadium compounds on the blades &c. of a gas turbine engine operating on a petroleum residual fuel, a small proportion of finelydivided carbon is introduced into the combustion chamber in such conditions that at least a part of said carbon remains dispensed in the combustion gases passing through the engine. In the method described, at least a part of the engine's air supply is passed through a chamber wherein the carbon is formed by carbonizing a straight-run distillation fraction or residue, and thereafter passing the heated air carrying the carbon in suspension to the combustion chamber of the engine. In engines having a plurality of combustion chambers, the carbon may be introduced into all of them. The carbon may be produced by subjecting an organic liquid feed to coking conditions in an indirect heatexchanger which is heated by combustion gases and it may be fed into the combustion chamber by a screw conveyer, as a suspension in the main or a subsidiary fuel or " fluidized " in the air stream.
Patent GB-393143-A (GB)
Title: Improvements in or relating to chamber ovens
IPC: C10B5/02
Filed: 1932-09-08
Abstract: 393,143. Coke ovens. GIBBONS BROS., Ltd., Dibdale Works, Dudley.- (Koksofenbau und Gasverwertung Akt.- Ges.; 519, Schliessfach, Essen, Germany.) Sept. 8, 1932, No. 25018. [Class 51 (ii).] In a vertically-flued coke oven two burners 5, 6 are provided in each flue adjacent the walls 3, 4 of the adjoining ovens 1, 2 and between the burners are ribs or projections 8 formed on the header bricks 7 and extending the length of the flue, these ribs serving to reflect the heat on to the wall 3, 4. The ribs are preferably triangular, as shown, and their cross section may increase towards the upper end of the flue to compensate for the reduced temperature of the gases.
Patent GB-536969-A (GB)
Title: Improvements in voice translating microphones
IPC: H04R9/08
Filed: 1939-08-31
Abstract: 536,969. Telephone transmitters. GREIBACH, E. H. Aug. 31, 1939, No. 25036. [Class 40(iv)]  A contact microphone for engaging the throat or cheek utilizes the relative movement due to inertia reaction between a magnetic system 47, 48, 51, 55 mounted rigidly on the tnroat or cheek contacting member 41 and an armature 44 resiliently mounted on the magnetic system, the vibrating system comprising the magnetic system and the armature having a resonant frequency in the speech frequency range of say 1250 cycles per second so as to reinforce the higher frequencies. The currents produced rise with the frequency at a rate of at least seven decibels per octave over at least one octave of the frequency range up to 3000 cycles per second.
Patent GB-157532-A (GB)
Title: Improvements in clockwork
IPC: G04B1/22
Filed: 1919-10-14
Abstract: 157,532. Crocker, S. H. Oct. 14, 1919. Driving-mechanism, main spring.-A substitute for the chain and fusee is provided. A pair of conical drums 1, 2 in contact along a directrix has a spiral line of holes 13 or 14 running round each member, and one member encloses a shaft 9 which is fixed parallel to the line of contact and carries a toothed loose wheel 12. Initially a tooth of this wheel projects through both the first hole of the enclosing-drum and the last hole of the fellow drum. As one of the drums is turned the succeeding holes and teeth engage together and effect the rotation of the second drum while the wheel travels parallel to itself towards the other end of the drum.
Patent GB-250475-A (GB)
Title: Improvement in shifting fulcrum valves for rock drills
IPC: B25D9/24
Filed: 1925-10-08
Abstract: 250,475. Ingersoll-Rand Co., (Assignees of Bayles, L. C., and Slater, F. M,). May 27, 1925, [Convention date]. Hinged, flap, and like valves.-In a rock drill, the valve F comprises a thin, flat, circular, tapering plate which oscillates about a shifting-fulcrum which comprises a flat portion a, b in between cut-away portions c, d beneath the valve. As the valve oscillates, its fulcrum shifts from a to b and back. Guiding pins may extend from the valve seat into sockets in the valve.
Patent GB-416953-A (GB)
Title: Improvements in filling bodies for apparatus for burning, calcining, drying, cooling and the like
IPC: F01L7/04
Filed: 1933-09-12
Abstract: <PICT:0416953/III/1> In apparatus for treating solids with gases, the charge is rendered more pervious to the treatment gas by the use, within the p  apparatus, of loose filling bodies each consisting of an iron or porcelain cylindrical ring a having one or more apertures b in its wall.
Patent GB-644274-A (GB)
Title: Improvements in or relating to electric discharge lamp circuits
IPC: H05B41/04
Filed: 1948-09-28
Abstract: 644,274. Inductances; supply systems for space-discharge lamps. EKCO-ENSIGN ELECTRIC, Ltd., and STICKLEY, W. A. Sept. 28, 1948, No. 25214. Drawings to Specification. [Classes 38 (ii) and 38 (iv)] In a circuit arrangement for two parallel connected discharge lamps each started by a glow discharge starting switch and supplied through ballast impedances comprising respectively a choke coil and a condenser in series with a further choke coil to reduce flicker, the two choke coils are loosely coupled so that when the first lamp has started its associated choke coil induces an E.M.F. in that choke coil in series with the condenser so as to increase the voltage across the second lamp until it has started. and thereby ensure operation of the second glow discharge switch. Preferably each choke coil is wound on a laminated E-shaped core with the open ends facing and separated by two similar plates of mild steel or other magnetic material interleaved with spacers of non-magnetic material such as impregnated paper, the two cores, plates and spacers being held together as one assembly by brackets or strips bolted together through the cores.
Patent GB-387743-A (GB)
Title: Improvements in or relating to cigarette boxes or cartons
IPC: B65D85/10
Filed: 1931-09-09
Abstract: 387,743. Cigarette boxes or cartons. GORMAN, S., Glen Arthur, Duddingston, Edinburgh. Sept. 9, 1931, No. 25278. [Class 18.] In a cigarette box or carton in which a match pack 8 is secured on one face of the outer shell 1 by a short flap 6 overlying and formed as an extension of the face and is covered by an elongated flap 7 also formed as an extension of the face and overlying it, both ends of the shell are open over the entire end of the box so that the inner drawer 5 can be pushed out at either end. Specification 250,110, [Class 18, Boxes &c.], is referred to.
Patent GB-1409068-A (GB)
Title: Preparation of seconcary backed carpets
IPC: D06N7/00
Filed: 1973-05-25
Abstract: 1409068 Laminating backings to tufted fabrics SYNTHETIC FABRICS (SCOTLAND) Ltd 25 July 1973 [27 July 1972 25 May 1973] 35059/72 and 25283/73 Heading B5N [Also in Division D1] A secondary backing is bonded to a tufted primary backing, whose tufts have not yet been fixed in position by a bonding agent, by superposing the layers, applying to the secondary backing an aqueous latex foam of a flexible film-forming polymer, substantially collapsing the foam without suction so that the latex penetrates the secondary backing and encapsulates the yarns thereof, and drying at elevated temperature. The secondary backing is preferably a woven or knitted polypropylene fabric (suitable constructions being specified) which has been stretched and heat-set. The tufted primary backing may comprise a woven polypropylene fabric tufted with polyamide yarn. The latex may be a mechanically or chemically foamed filled carboxylated styrene-butadiene elastomer latex and may be collapsed by heat or by nip rollers; sufficient heat may be supplied during drying. The collapsed foam may retain some air bubbles. Drying may take place in a hot air oven. During processing, the fabrics may be supported by stenter clips.
Patent GB-619537-A (GB)
Title: Improvements in or relating to friction clutches and brakes
IPC: F16D25/04
Filed: 1946-08-24
Abstract: 619,537. Friction clutches. MASSEY, Ltd., B. & S., and FOSTER, J. Aug. 24, 1946, No. 25360. [Class 80 (ii)] [Also in Groups XXVI and XXXIV] An air-operated sliding piston 27, actuating a presser-plate 20 of a single- or multi-disc friction-clutch 16, connecting a freely-mounted flywheel 10 to the driving shaft 12 of a forging- machine or press, or for a brake, is sealed by a flexible non-metallic oil-resisting (e.g. vulcanised rubber) diaphragm 32, clamped at its inner and outer peripheries respectively to the piston 27 and its cylinder 25. Leak of air and also of piston lubricating oil to the friction surfaces is thereby avoided. The clutch-disc 16 and presser-plate 20 have axially-sliding toothed connections 15, 21 respectively with a hub 13, keyed to the shaft 12, and with the flywheel 10, which latter carries the cylinder 25 to which compressed-air is supplied, to engage the clutch in opposition to release-springs 38, through a stationary glanded fitting 28 and grooves 27c in a central guide-spigot of the piston.
Patent GB-628211-A (GB)
Title: Improved tool for screwthreading the ends of wire spokes
IPC: B21H3/08
Filed: 1947-09-17
Abstract: 628,211. Rolling screw threads. CAMILLIS, L. Sept. 17, 1947, No. 25360. [Class 83 (iv)] Skew - rolling.-A spoke threading tool comprises a body 1 longitudinally and radially slit to provide resiliently opening jaws 2, 3, 4, and externally tapered and screw threaded from its forward end, each jaw carrying a stub axle 5 fitted with a roller 6, and a screw-threaded ring 9 engaging the body for collectively closing the jaws to adjust the pass. The tool is mounted by means of the screw 2a on a spindle which according to the Provisional Specification is rotated by hand.
Patent GB-172390-A (GB)
Title: Improvements in or relating to the process of and apparatus for separating finely divided minerals from their ores by froth flotation
IPC: B03D1/16
Filed: 1920-09-02
Abstract: 172,390. Brougham, F. J., (Hynes, D. P.). Sept. 2, 1920. Surface-tension and like apparatus.-Frothproducing mechanism in a flotation machine for treatment of ores comprises rotating members partly submerged in the pulp and adapted to introduce air solely by trapping it and carrying it down through the free surface of the pulp. A tank is divided into two chambers A<5>, A<6> by a longitudinal partition A' perforated near the normal level of the pulp. The froth-producing mechanism in the chamber A<5> comprises an horizontal shaft C on which are mounted laterallyspaced rotary members C<3> in the form of thin discs having perforations C<5> or projections or ridges, or the discs may be made of woven wire. During their rotation, aerated pulp passes through the perforations D in the partition into the chamber A<6>, and froth collecting on the surface is discharged into a launder D<2>. demineralized pulp returning to the chamber A<5> through the passage A'.
Patent GB-156921-A (GB)
Title: Improvements in or relating to disinfecting devices for use with flushing-apparatus
IPC: E03D9/03
Filed: 1919-10-17
Abstract: 156,921. Bridgland, C. W. S. Oct. 17, 1919. Fixed-chamber apparatus; with air control of level; valve systems for.-When a flush passes down the pipe 10 some of the water strikes a pivoted vane 22. This is deflected, and, by means of a cam 24 and a rod 25 opens a valve 27. Disinfectant in the chamber 37 is then sucked into the pipe 10. A rod 30 is moved with the valve 27 and brings a collar 50 into contact with a valve 48, which it opens, and also closes a valve 35 by which communication with a disinfectant reservoir along a pipe 14 is cut off. The opening of the valve 48 allows air to enter the chamber by a passage 45. At the end of the flush the valve 35 is opened by a spring 38 and the chamber 37 is re-filled with disinfectant as far as the pressure of the confined air will allow.
Patent GB-1063535-A (GB)
Title: Method of agglomerating food powders
Inventor: HUSTE ARNO
IPC: B01J2/28
Filed: 1965-06-16
Abstract: In agglomerating food powders, the powdered material is mixed with 5-40% (preferably 5-15%) by weight of the final mixture, of powdered dried corn syrup solids having a dextrose equivalence of 15-60, to form a blended mixture, the mixture is dispersed while the moisture content is increased 1-5% (preferably 1-3%) by weight to tackify the surface portions of the corn syrup solids, the tacky corn syrup solids and powdered material make spaced point-to-point contact to form moist aggregates and the aggregates are dried to produce free-flowing agglomerates of high bulk volume and structural strength.  Food powders particularly mentioned are sucrose and dextrose monohydrate; hydrophilic colloids such as pectin, gelatin, algin, carragheen, agar, locust bean gum and gum arabic; soup, pudding, sauce, cocoa and beverage mixes; and edible flavours, colours and food acids such as citric, adipic and fumaric acids enrobed with hydrophilic colloids such as gelatin by spray-drying. An example is directed to the agglomeration of 90 parts dextrose monohydrate of average particle size 110 microns with 10 parts dried corn syrup solids having a dextrose equivalency of 24 of average particle size 50 microns. Agglomeration is accomplished by causing the blended mixture to fall from a vibrating feeder in the form of a curtain 4 inches wide and approximately 1/4 inch thick between steam jets poised to intersect the curtain at a point 3 inches from the free feeding edge of the vibrator.  The steam jets emit from a pair of horizontal pipes in planes parallel to the plane of the curtain and placed about 1 inch from either side of it, each pipe having 60 holes 0.40 inch in diameter and 1/8 inch apart.  The moist aggregates (11% by weight moisture) thus produced fall under gravity into a vertical cylindrical chamber 3 feet in diameter and 4 feet high having a conical discharge section.  Further mixing is achieved by a flow of air at a temperature of 70 DEG F. entering at the top of the chamber.  The agglomerated particles are discharged on to a belt conveyer whereon they are retained for 1 minute to set and improve their final strength.  The agglomerates are delivered to a fluidized bed drier having a conveyer 2 feet wide and 10 feet long consisting of 1/16 inch diameter horizontal rods just barely touching one another along their length and running in a direction perpendicular to the direction of intended travel of the aggregates.  The aggregates are caused to proceed along the conveyer under the influence of dry air at 200 DEG F. forced under pressure through the narrow spaces between the rods.  The dried aggregates are sized through a vibrating screen.
Patent GB-188864-A (GB)
Title: Improved mechanism for opening and closing field gates and the like
IPC: E05F13/02
Filed: 1921-09-27
Abstract: 188,864. Cade, J. H. Sept. 27, 1921. Latches, sliding.-Instead of operating the gate latch through a chain C' secured at its other end to the gate opening lever H, as described in Specification 158,155, [Class 65 (i), Door and gate operating-appliances &c.], the latch is directly connected with the opening lever through a rod A, whereby the latch L is released from its catch before the slack of the chain is taken up. The rod A has a swivelling connection B, both with the lever H and with a forked member C in which are mounted rollers F adapted to engage respectively with the heel of the gate and a cam member on the end of the latch. On depressing the gate operating hand-lever H, the rod A is lifted and the roller F engages with the cam to withdraw the latch from its catch, the gate being then swung into the opened position.
Patent GB-707611-A (GB)
Title: Improvements in and relating to pyrazolidines
Filed: 1951-11-02
Abstract: The invention comprises 3 : 5-dioxopyrazolidines of the general formula <FORM:0707611/IV (b)/1> (or tautomeric forms thereof), wherein R represents a primary or secondary alkyl radical and Aryl1 and Aryl2 represent the same or different alkylmercapto-substituted phenyl radicals, and their salts, and the manufacture thereof by reacting a monosubstituted malonic acid derivative R-CH(CO-X)2 (wherein X represents an atom or radical capable of being split off, e.g. halogen or alkoxy) with a 1 : 2-diarylhydrazine Aryl1 -NY-NY-Aryl2 (wherein Y represents hydrogen or an acyl radical) advantageously in the presence of a condensing agent or an acid binding agent, and, if desired, reacting the product with an organic or inorganic base to form a salt.  The condensation may be effected with a dialkyl ester of the monosubstituted malonic acid in the presence of a metal alcoholate, or with a dihalide in the presence of a tertiary organic base, or with an esterchloride in two stages, first in the presence of pyridine to form a compound of the formula <FORM:0707611/IV (b)/2> the ring-closure of which is then effected by heating with sodium ethylate.  The products, which are useful for therapeutic purposes, can also be prepared by introducing the radical R after the condensation with the diaryl hydrazine, i.e. by reacting a compound of the general formula <FORM:0707611/IV (b)/3> with a compound R-X (where X is an atom or radical which can be split off, e.g. halogen, SO4R or SO3Aryl), preferably in the presence of an acid-binding agent, or with a carbonyl compound R1 = O (where R1 is an alkylidene or alkenylidene radical containing one or three less hydrogen atoms than R) with simultaneous or subsequent hydrogenation, preferably with hydrogen in the presence of a hydrogenation catalyst. Alkali metal or ammonium salts of the products may be converted into difficulty soluble salts by double decomposition with an alkaline-earth metal or heavy metal salt, e.g. calcium chloride or silver nitrate.  In examples, n-butylmalonic acid diethyl ester is heated with p : p1- or o : o1-di-(methylmercapto)-hydrazobenzene in the presence of sodium ethoxide to produce 1 : 2-di-(p- or o-methylmercaptophenyl)-3 : 5-dioxo-4-n-butylpyrazolidine. Alkylmercapto-substituted diarylhydrazines are obtainable by the action of mild reducing agents (e.g. sodium amalgam, ammonium sulphide or zinc dust) on the corresponding azo or azoxy compounds, which in turn are prepared by condensing alkylmercaptoanilines with alkylmercapto-substituted nitroso- or nitro-benzenes.ALSO:Aqueous solutions of water-soluble salts (especially those with organic bases such as ethylenediamine, triethanolamine, diethylamine or trimethylamine) of 1:2-diaryl-3:5-dioxypyrazolidines of the general formula <FORM:0707611/VI/1> (wherein R represents a primary or secondary alkyl radical and Aryl1 and Aryl2 represent the same or different alkylmercapto-substituted phenyl radicals) may be used as solubility promoters for medicaments difficulty soluble in water, e.g. 1-phenyl- 2:3- dimethyl-4-dimethyl-aminopyrazolone.
Patent GB-1267910-A (GB)
Title: An arrangement for installing a glove at the entrance to a vessel
Inventor: TOWNSEND ERIC
IPC: G21F7/053
Filed: 1970-05-28
Abstract: 1,267,910. Glove boxes. COMMISSARIAT A L'ENERGIE ATOMIQUE. 28 May, 1970 [30 May, 1969], No. 25734/70. Heading B4Q. [Also in Division E2] In an arrangement for installing a glove 3 in the entrance to a radioactive enclosure, the expansible rim A of the glove is located in a collar 6 in the entrance by bolts 8 movable radially of this collar against springs 10. In the form shown in Figs. 1 and 3, each bolt 8 carries an arm 9 which holds the outside of the ring. The bolt 8 may be in at position 8 1  to give better protection. The ring is located and expanded by tools 11 on spindles 12 in guide 13. To replace an old glove, a new one, Fig. 2, is located under the bolts 8 and expanded by tools 11 to raise the bolts and rest in the collar 6. It is then pushed forward to eject the old ring into the enclosure. In addition, each of the bolts may be linked to a second plunger 20, Fig. 7, which serves to compress the old ring to free it from the sleeve as the new one is expanded into the sleeve.