baber/WOPTO huggingface dataset:
Patent GB-166792-A (GB)
Title: Improvements in and relating to gas water heaters
IPC: F24H1/10
Filed: 1920-06-02
Abstract: 166,792. St. Leger, A., and Richmond Gas Stove & Meter Co., Ltd. June 2, 1920. Geysers; internally-fired boilers.-Water is directed or. to the shallow cover 4 of the heating- space of a geyser, thence passing to the annulus 3 and through cross pipes 20 and vertical pipes 21 to a tray 14 provided with divisions 17 for causing the water to pursue a tortuous path to the outlet 24. Ribs or projections 15 may be fitted to assist the heating, or the bottom of the tray may be corrugated. A depending curtain 30 causes the uprising heating gases to pass close to the outer jacket and the drip-collecting rim 33 is provided with a flange joint for the exit pipe 31.
Patent GB-475819-A (GB)
Title: Improvements in or relating to felted fibrous product and method of making the same
IPC: D21H13/40
Filed: 1936-05-27
Abstract: 475,819. Felted fibrous sheet material; wadding. JOHNS-MANVILLE CORPORATION. May 27, 1936, No. 14984. Convention date, May 28, 1935. [Class 96] [Also in Groups IX and XIII] A felted insulating- sheet comprises voidcontaining loosely felted fibrous clusters or nodules, i.e. tufts containing loosely compacted fibres defining air spaces or voids therebetween, and a web of less thickness than the clusters which includes more closely felted fibres interlocking with the cluster fibres and interconnecting the clusters. The felt is produced on a foraminous belt 9, Fig. 1, from a suspension of well-dispersed fibres of mineral wool 15 and void-containing clusters 19. In a modification, clusters may be dropped on to the surface of the wet felt. Water flows through the belt 9 into a receiver 16 while the felt is compacted by air pressure or by passage over a suction member 17 and is wound on a mandrel 18 or formed into bats or laps on a horizontally reciprocating table. A binder such as starch or casein is added to the suspension in the hopper 13 while the finished plies may be united by adhesive. In forming a tubular insulation for pipes, Fig. 4, an inner lining 21, e.g. of asbestos paper, and an outer wrapper 22 of cloth or paper are provided.
Patent GB-515054-A (GB)
Title: Improvements in or relating to fastening means for doors and the like
IPC: E05C3/12
Filed: 1938-05-19
Abstract: 515,054. Fastenings for doors &c. PERL, A. H. F. May 19, 1938, No. 14988. [Class 44] A fastening for doors, windows &c. comprises a catch 7 pivoted at 8 in a frame 1 fixed to a door jamb &c. and operated by means which automatically lock it in the fastening position against movement other than that effected by the operating means. The operating means may be a toggle lever 9 pivoted at 11 in the frame 1 and engaging the catch by pin and slot 12, 13. A spring 14 effects a snap action of the lever 9. The catch moves in a plane at right angles to the base 2 of the frame 1
Patent GB-871754-A (GB)
Title: Production of piperazine and triethylene diamine
Inventor: KRAUSE JACK HARRY
IPC: C07D295/023
Filed: 1958-05-12
Abstract: Piperazine and triethylene diamine are synthesised by contacting an alkylene polyamine-containing charge stock, in which the alkylene polyamines have the amino groups separated by two carbon atoms, in the vapour phase with an active solid siliceous cracking catalyst at 290 DEG -500 DEG C., and a pressure up to 10 atmospheres and at a space rate within the range 0.5-5.0 liquid volume of charge to one volume of catalyst; separating from the reaction product at least one fraction boiling in the range 130-160 DEG C. and containing significant amounts of piperazine, and at least one additional fraction boiling in the range 160-190 DEG C. and containing significant amounts of triethylene diamine; and separately, recovering the piperazine and the triethylene diamine from these fractions.  Suitable starting materials are, for example, diethylene triamine, ethylene diamine, triethylene tetraamine and N-2-hydroxyethylethylene diamine.  The preferred catalyst is silica-alumina which may contain zirconium or magnesium oxide. Subbentonite clays of the monmorillonite family and certain activated kaolin clays are also suitable.
Patent GB-553744-A (GB)
Title: Improvements in or relating to optical objectives of the telephoto type
IPC: G02B13/02
Filed: 1941-12-01
Abstract: 553,744. Telephoto objectives. TAYLOR, TAYLOR & HOBSON, Ltd., and COX, A. Dec. 1, 1941, No. 15413. Drawings to Specification. [Class 97 (i)] The mean refractive index of each element of a telephoto objective comprising a front convergent doublet and a widely spaced rear divergent doublet is greater than 1.610, and the clear back aperture of the objective bears a ratio of not less than 3À825 tan ° to the clear front aperture, where ° is the semi-angular field of the objective. Each doublet may comprise a convergent element and a divergent element, the mean refractive index of the front convergent element and of the rear divergent element being not greater than 1.7; if, in the front doublet, the convergent element is in front, and, in the rear doublet, the convergent element is at the back, the mean refractive index of the rear convergent element may be greater than 1.64. The elements of the front doublet may be cemented and have a difference of mean refractive index of not less than .06. The elements of the rear doublet may be separated by a negative air lens, the difference between the curvatures of the bounding surfaces lying between .10 and .70 of the equivalent power of the whole objective. Complete data are set out for one example.
Patent GB-1358155-A (GB)
Title: Replenishing valve for a master cylinder
IPC: B60T11/22
Filed: 1973-03-30
Abstract: 1358155 Master cylinder replenishing valves SOC ANON DBA 30 March 1973 [24 April 1972] 15416/73 Headings F2F and F2V A master cylinder replenishing valve has a body 24 with a stepped bore, the larger and smaller diameter portions 32, 28 of which are connected to a pressure chamber 18 of the cylinder and an hydraulic reservoir respectively, the valve having a domed disc closure member 38 whose peak faces the larger bore 32 in the closed position wherein the peripheral portion is held against a valve seat formed on a shoulder 36 between the bores, the member 38 in the open position being deformed by movement of an associated tappet 42, parallel to the stepped bore, toward the smaller portion 28 whereby an intermediate band of the disc abuts on fixed axial projections in the stepped bore and whose tips are situated in a radial plane close to the radial plane of the valve seat. The tappet 42 is actuated by a ramp 46 on a master cylinder piston 12 to close the valve member 38 when the piston is moved for brake application. The projections may be as shown, i.e. spaced inside the shoulder 36, or they may extend from the inner part of the shoulder. In both instances, grooves between the projections allow passage of fluid when the member 38 is in the open position.
Patent GB-228062-A (GB)
Title: Die for metal expanding machine
IPC: B21D31/04
Filed: 1924-06-26
Abstract: 228,062. Halls, J. A. June 26, 1924. Making expanded metal; expanding-dies.- Stationary dies A for use in machines for making expanded metal, are formed with inclined steps 3 at each end so as to be reversible when worn. The dies have slots for receiving the securing screws 5 to permit of accurate adjustment. The previously slitted sheet is fed in a vertical plane between knurled feed rollers 7, 8 and is deflected in order that the uncut portions may engage the steps of the dies, by rotary discs B. Specifications 3131/13 and 188,433 are referred to.
Patent GB-823398-A (GB)
Title: Improvements in or relating to electric space heaters
Inventor: LANE RICHARD JOHN
IPC: F24C7/06
Filed: 1956-05-17
Abstract: 823,398. Electric space heater. GENERAL ELECTRIC CO. Ltd. May 17, 1957 [May 17, 1956], No. 15448/56. Class 39(3) A space heater of the radiant type comprising one or more resistance heating elements 1 in a reflector 2, especially for mounting on a wall or ceiling for radiation downwards has between the heating part and a terminal compartment 5 a ventilated compartment 4 through which leads 14 pass from the heater to a terminal block 15. Orifices 6 in the walls of the compartment 4 to allow cooling of the leads are rectangular or elliptical with their longer sides transverse to the heater and are staggered as shown to elongate the heat conduction path to the terminal compartment. The reflector 2 is an aluminium sheet in which the orifices are stamped before it is bent to shape and fitted with a plate 8 supporting two looped heaters 1, a terminal plate 9 and an end cover 10 with a lower extension also formed with orifices. The heaters 1 are of the coiled wire or tubular sheath type and the compartments 4, 5 may be formed separately from and added to the end face of the reflector. A sheet of aluminium is bent on lines parallel to its length to form a reflector with five flat portions of which the middle three are at 140 degrees to each other where they adjoin.
Patent GB-1135594-A (GB)
Title: Production of polyamide dispersions
Inventor: WILHELM HANS
IPC: C08J3/07
Filed: 1966-04-07
Abstract: 1,135,594. Polyamide dispersions. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 April, 1966 [9 April, 1965], No. 15499/66. Heading C3R. Dispersions are prepared by mixing a solution of a polyamide with water containing a watersoluble copolymer having a K value of at least 90 containing 15-35% by wt. acrylic and/or methacrylic acid and up to 85% by wt. of acrylamide of which up to 40% by wt. may be replaced by methacrylamide. All or part of the solvent may subsequently be distilled off. The polymer may also contain up to 1% by wt. of the total monomers of N-methylolaorylamide and/or N-methylolmethacrylamide. Conventional dispersing agents may also be present.
Patent GB-375960-A (GB)
Title: Improvements in and relating to the construction of roads
IPC: E01C7/18
Filed: 1931-05-27
Abstract: A road material comprises unwashed and undried broken stone which is treated first with creosote oil and then with bituminous composition at a temperature between 300-350 DEG  F. 1 ton of broken stone is treated with 1/2 to 3/4 gallon of creosote oil and 6 to 7 1/2 gallons of bituminous material, the later material being added to the stone in a mechanical mixer.  The Specification also describes the treatment of stone dust with creosote oil and bituminous substances for application as a finishing layer to a road constructed with the material specified above.  Specification 330,072, [Class 22, Cements &c.], is referred to.
Patent GB-151345-A (GB)
Title: Improvements in multiple wheels for road vehicles
IPC: B60G3/14
Filed: 1919-06-20
Abstract: 151,345. Corte, C. June 20, 1919. Rollers, land, garden, and road. - Relates to road vehicles of the kind which are supported by a number of wheels arranged side by side but independent of each other and each resiliently connected to the vehicle, and consists in the methods of mounting the wheels. In one arrangement, the wheels a are mounted in frames c which are pivoted at one end to a bracket e on the vehicle and at the other end are connected to the vehicle frame h through the medium of springs i of any suitable shape, and with or without a guide rod. In another arrangement the frames c are free at both ends c<1>, c<2> and are connected to the vehicle frame by two springs i and guides n. The forward end of the frame c has pins l which work in vertical guides m secured to the vehicle.
Patent GB-529266-A (GB)
Title: Improvements in accessories and appliances relative to and employed in connection with hosiery, knitted or woven fabrics and the like
IPC: D06H3/16
Filed: 1939-05-26
Abstract: 529,266. Scissors. SELLER, J. F., OSBORNE, C., and MOORE & OSBORNE, Ltd., W. May 26, 1939, No. 15617. [Class 30] A guard-plate or sheath is provided for the work-contacting blade of scissors so as to extend along and project beyond the cutting edge. The sheath b has a funnel end b<SP>1</SP> covering the point end of the blade and is secured by a screw h to the blade. A sheath may be provided for both blades. To make the sheath adjustable, it has two inclined slots d, e engaged by a pin i and the screw h respectively, the slots being curved at one end to give a final adjustment. Different thicknesses of sheath may be provided for different classes of goods. According to the Provisional Specification, the sheath may also be adjusted by set screws at the outer non-cutting edge of the blade.
Patent GB-1463428-A (GB)
Title: Ignition system for an internal combustion engine
IPC: F02P5/155
Filed: 1975-04-16
Abstract: 1463428 Ignition systems; timing ignition BENDIX CORP 16 April 1975 [6 May 1974] 15663/75 Heading F1B In an ignition system for an internal combustion engine comprising a first electronic switching device 29, a triggering circuit, for triggering the first electronic switching device, for firing a sparking-plug 11, a second electronic switching device 49 and trigger pulse generating means 39, 45 for generating a trigger pulse in timed relation to each engine cycle to make the second electronic switching device electrically conductive in response to the trigger pulse for triggering the first electronic switching device, there are provided voltage bias means connected between the trigger pulse generating means and the second electronic switching device, and means for controlling the voltage on the voltage bias means to control the time in the engine cycle the second electronic switching device is made conducting to thus control the spark timing. As shown the voltage bias means is a capacitor 53 and the means for controlling the voltage bias means includes a variable resistor 55. In a modification (not shown) a computer provides a voltage corresponding to one or more engine parameters such as temperature, pressure engine fuel requirement and speed and a diode is connected between the output of the computer and the junction of the capacitor 53 and a diode 51. In this arrangement the resistor 55 has a relatively high value or may be eliminated entirely. In another modification a series connected Zener diode and a resistor are connected in parallel with the capacitor 53. Interference suppression is provided for the SCR 49 by a resistor 73 and a capacitor 75.
Patent GB-293297-A (GB)
Title: Improvements in and relating to the superheating of interstage steam by means of high-pressure steam in installations working at two or more pressures
IPC: F01K3/26
Filed: 1928-05-29
Abstract: 293,297. Schmidt'sche Heissdampf-Ges, July 2, 1927, [Convention date]. Compound engines.-The condensate from the heating coils 19 of a superheater 14 between the stages 11, 12 of an engine is led through a throttle valve or trap 20 into the low pressure drum 22 of a compound boiler. Steam is generated in the high-pressure drum 1 of the compound boiler by the circulation nf a hot medium heated in tubes 3 around the furnace. The condensate may be led into the boiler feed heater.
Patent GB-830913-A (GB)
Title: 1-(2-benzylaminoethyl)naphthalene and acid addition salts thereof, and pharmaceutical preparations of the penicillin salt
Inventor: COPP FREDERICK CHARLES
IPC: C07D499/00
Filed: 1957-05-17
Abstract: The invention comprises 1-(2-benzylaminoethyl) naphthalene and acid addition salts thereof, particularly salts with penicillins which comprise equimolar proportions of the acid and base.  The base may be prepared by reacting benzaldehyde with 1-(2-aminoethyl) naphthalene and reducing (for example by catalytic reduction with hydrogen), the resulting 1-(2-benzalamino ethyl) naphthalene.  The penicillin salt of the base is prepared by reacting together equivalent amounts of a more soluble salt of the base with sodium or potassium penicillin in aqueous solution.ALSO:The invention includes a pharmaceutical preparation comprising an aqueous suspension of a salt consisting of equimolar proportions of any therapeutically useful penicillin and 1-(2-benzylaminoethyl)-naphthalene.  The vehicle used to prepare the suspension preferably contains a small amount, about 1.0% w/v., of a surface active agent such as polyoxyethylene sorbitan monolaurate or mono-oleate, a suspending agent such as sodium carboxymethyl cellulose, about 0.5% w/v., and a preservative such as phenyl mercuric nitrate, about 0.002% w/v.  The addition of a small amount, 0.2-1.0% w/v., of the hydrochloride salt may also be included to reduce the solubility of the penicillin salt.  A citrate buffer may be added to maintain the vehicle at any desired pH value.  An example of the preparation of a suspension is given.
Patent GB-350697-A (GB)
Title: Improvements in or relating to stitching machines for signatures or the like
IPC: B42B4/00
Filed: 1930-05-22
Abstract: 350,697. Conveying oscillating motion ; operating clutches. CAMCO (MACHINERY), Ltd., 63, Farringdon Street, London.-(Kerr, J. ; Galt, Ontario, Canada.) May 22, 1930, No. 15765. [Classes 80 (i) and 80 (ii).] In a wire-stitching machine, the driving pulley 10 for a conveyer belt 11, Fig. 4, is adapted to be clutched to a driven shaft 17 by a sliding clutch sleeve 18 keyed to the shaft. The sleeve is moved, to engage the clutch teeth 10a, 18a, by a fork 19 when a shaft 20 is rotated against a spring 22. The shaft 20, which extends longitudinally of the stitcher section of the feed saddle, carries at its other end a pawl 25, Fig. 3, which co-operates with a ratchet wheel 26 each tooth of which has two faces 26a, 26b. Also co-operating with the wheel is a projection 28a on a bar 28 which is pivoted to a pivoted lever 27. Similar levers 27 are arranged at each feed station of the machine and are all connected by a hand-bar 29. To start the conveyer belt the operator presses on the bar 29. This steps the wheel 26 half a tooth, moving the pawl 25 outwardly to lie against a tooth face 26a, so rotating the shaft 20 to clutch the pulley 10. When released, the bar 29 is returned by a spring 30. The next operation of the bar 29 steps the wheel another half tooth, declutching the pulley.
Patent GB-1271771-A (GB)
Title: Cyclopropanecarboxylic acid esters, processes for producing them and compositions including them
IPC: A01N53/04
Filed: 1970-04-02
Abstract: 1,271,771. Insecticides containing cyclopropane carboxylic acid esters. SUMITOMO CHEMICAL CO. Ltd. 2 April, 1970 [8 April, 1969; 10 April, 1969; 12 May, 1969], No. 15787/70. Heading A5E. [Also in Division C2] Novel esters (displaying insecticidal activity) of the formula wherein R 1 =H or Me, R 2 =methyl, 2-methyl- 1-propenyl or 2-methoxycarbonyl-1-propenyl when R 1  is H, and R 2 =Me when R 1 =Me; R 3 =H or Me, and R 4 =C 1-4  alkylene optionally containing an O or S -atom in its carbon chain, may be made into insecticidal compositions by mixture with inert carriers. which may also be admixed with synergists for pyrethroid, or other active ingredients such as pyrethroids. In the examples these pyrethroids or synergists therefor are: "piperonyl butoxide" (3,4 - methylenedioxy - 6 - propyl benzylbutyldiethylene glycol ether), "sulfoxide" (1,2 - methylenedioxy - 4 - [2 - octylsulfinyl) - propyl] - benzene), "sufroxane" (4 - (3,4 - methylenedioxyphenyl) - 5 - methyl - 1,3 - dioxane), n - propyl - O - propargyl - phenylphosphonate, pyrethrin, allethrin, "phthalthrin", "Sumithion" (RTM) and "chrysron".
Patent GB-585916-A (GB)
Title: Improvements in explosive compositions
IPC: C06B21/00
Filed: 1942-11-11
Abstract: 585,916. Explosives. BAWN, C. E. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 11, 1942, No. 15905. [Class 9 (ii)] Particles of tetryl (trinitrophenylmethylnitramine) are coated with not more than 2¢ per cent of waxy substance, in order to avoid contamination of the skin when handling it. By using a coloured wax, the particles may be made distinctive in appearance. The waxy substance is applied in aqueous suspension, which may contain a " surface acting agent," i.e. an agent, such as sodium ricinoleate or ricinoleic acid, which lowers the interfacial tension between the water and the waxy substance. The tetryl may be added to the water first, then ricinoleic acid, then molten paraffin wax; the mixture is stirred, filtered, dried and compacted. Instead of paraffin wax, the substance may be a water-insoluble compound which is a hydrocarbon, alcohol or carboxylic acid of the aliphatic series containing at least 12 carbon atoms or an ester of the said carboxylic acid, or a sterol or sterol ester; examples are beeswax, wool fat alcohols and wool fat acids.
Patent GB-704403-A (GB)
Title: Compost mixing machine
IPC: A01G1/04
Filed: 1951-07-05
Abstract: 704,403. Mixing appliances. ALLAN, F. July 30, 1952 [July 5, 1951], No. 15930/51. Class 86 A machine for mixing compost having a straw basis comprises an elevator 5 which raises materials from a loading hopper 4 into an elevated hopper 12 which is fitted with a transverse axle or drum 13 arranged for rotary oscillation and having spikes 15 which interdigitate with the teeth of a fixed comb or combs 20, which teeth extend wholly or partly across the lower part of the hopper 12. The spikes 15 may be in two rows spaced at an angle of less than 180 degrees to each other, preferably at 115 degrees, and are preferably arranged in parallel spiral formation around the drum 13. The drum 13 is oscillated through an angle substantially the same as the angle between the rows of spikes 15 by means of a crank 16 and connecting rod 17, from a disc 18 on the driving shaft' 19 of the elevator which is of the endless chain drive scraper type. A fixed comb 11 is suspended over the top end of the elevator whereby the material is partly teased out before delivery into the hopper 12. Water or chemical may be sprayed over the material in the hopper 12 through a perforated transverse tube 21. The material discharged from the hopper 12 may be received in a box adjustably and detachably fitted to the machine beneath the hopper 12.
Patent GB-805670-A (GB)
Title: Improvements in or relating to the manufacture of glass tubes
Inventor: BALKWILL JOHN TREAGUS
IPC: C03B23/047
Filed: 1956-05-23
Abstract: 805,670. Glass tubes. MULLARD RADIO VALVE CO. Ltd. April 29, 1957 [May 23, 1956], No. 15942 /56. Class 56. A straight glass tube is made by arranging a length of glass tubing on a straight metal rod or tube, sealing the inner surface of the glass tube to the metal member, reducing the external surface of the glass to the required contour and then placing the metal member under tension so as to reduce its thickness and cause it to pull away from the internal surface of the glass tube which is then removed from the metal member. The metal member may be heated by the passage of an electric current therethrough while it is under tension.
Patent GB-325762-A (GB)
Title: Process for the production of beryllium alloys, in particular those with a high beryllium content, by means of fused electrolysis
IPC: C25C3/36
Filed: 1929-05-23
Abstract: 325,762. Siemens & Halske Akt.- Ges. Nov. 13, 1928, [Convention date]. Beryllium alloys, obtaining.-In the production of beryllium alloys, particularly those with a high beryllium content by electrolysis of a molten bath, the alloying metal is introduced into the bath by anodic solution. The crucible or the bottom thereof is connected as anode and one or more cathodes, which may be cooled are dipped into the bath from above. The alloying metal is introduced, in the form of powder or filings, in definite quantities from time to time. The metal should have a specific gravity greater than that of the bath so that it sinks to the bottom and is thereby anodically polarized. The temperature should be below the melting point of the metal. The amount of metal added should not be such that the specific gravity of the deposited alloy is greater than that of the bath. The bath may consist of a mixture of the fluorides of beryllium and of one or more alkaline earth metals: its specific gravity may be reduced by the addition of alkali metal halides. Directions are given for obtaining an alloy containing 15 per cent of copper, one containing 35 per cent of nickel, and one containing 3 per cent of iron. An alloy containing 50 per cent of copper, alloys with the heavy metals, and a coppernickel-beryllium alloy may also be obtained.