baber/WOPTO huggingface dataset:
Patent GB-295233-A (GB)
Title: Improvements in or relating to the handling of dusty materials
IPC: B04C9/00
Filed: 1927-05-04
Abstract: 295,233. Soderlund, O., Gram, T., and Techno-Chemical Laborataries, Ltd. May 4, 1927. Dust, confining on generation.-In the handling of dusty materials, a small proportion of hydrocarbon liquid is added to the material to confine the dust. The liquid should not be volatile or injurious to the material treated. The Figure shows apparatus for treating the dust alone, and not the material, with liquid. Dust-laden air is separated in a cyclone separator d. The dust falls into a conveyer f in which a screw h discharges the main portion, while an opposite coaxial screw i conveys the remainder to a mixer where it receives oil from a tank j, the oil and dust being intimately mixed by the vanes k and delivered to the air conduit to increase the separability of the incoming dusty air. Specification 286,743, [Class 34 (ii), Drying systems &c.], is referred to.
Patent GB-108890-A (GB)
Title: Improvements in or relating to Potato Digging Machines.
Inventor: RUSSELL FREDERICK GEORGE
IPC: A01D19/06
Filed: 1916-08-23
Abstract: 108,890. Russell, F. G., and Phillips, A. M. Aug. 23, 1916. Potato diggers.-The tines C of a potato digger are pivoted at C' to a rotary flyer A and are provided with short lateral arms E connected by links F with levers G carrying cam-rolls K<1> riding in the cam-groove D formed in a stationary plate. Each lever G is pivoted at its forward end to the preceding flyer arm. The cam-groove D is formed with a dwell so that, while the tines are maintained approximately tangential to the curve of the flyer arms during the movement through the air, they are caused to assume a more or less radial position and to have a wide sweeping movement during their passage through the soil. The tines may be adapted to yield on striking obstructions, and the cam may be adjustable or interchangeable.
Patent GB-857585-A (GB)
Title: Contact for electric high-voltage circuit-breakers
IPC: H01H1/38
Filed: 1957-04-12
Abstract: 857,585. Contact-members for switches. FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. N.V. April 12, 1957 [April 19, 1956], No. 12028/57. Class 38 (5). A rod-like contact for a high-voltage circuitbreaker, for making butt contact with a cooperating collinear rod-like contact, comprises a main rod-like element 2 and a renewable element 1 carrying a contact tip 4, the two elements engaging with one another along mating conical surfaces 5 of such small vertical angle that they are frictionally maintained firmly in engagement with one another. The element 1 may be of aluminium, the element 2 of copper and the tip 4 of a composition of copper and tungsten.
Patent GB-137461-A (GB)
Title: Attaching gas brackets
IPC: F21V21/10
Filed: 1919-05-13
Abstract: 137,461. Spensers, Ltd., and Smith, H. E. May 13, 1919. Brackets, gas.-A means of attaching gas brackets comprises a box 2 receiving the ends of the burner pipes 1 and having a conical opening and a channelled plug 3 fitting the opening and screwing into an elbow 5 on a gas-main 6. The plug 3 has a screwdriver slot 9 for rotating it, and several lateral passages 8 leading from a central channel 7. This attachment is enclosed in a casing 10 ornamented as desired, and the pipes 1 may terminate in the casing 10 and be joined to the box 2 by short lengths of lead piping.
Patent GB-558825-A (GB)
Title: Improvements in suction gas producers
IPC: C10J3/00
Filed: 1942-08-26
Abstract: 558,825. Gas producers. JOHN, W. E. Aug. 26, 1942, No. 12040. [Class 55 (i)] Gas is withdrawn through a tube 14 extending downwards through the fuel in the hopper 11 to the fire zone 13, the end of the tube being fitted with a grating 26, and the air for combustion is supplied through tuyeres 15 which lead off from an annular space enclosed by a tube 16. The tuyeres are cooled by hollow inverted saddle shaped jackets 17 which are supplied with water by pipes 19 leading upwards through the air supply channel. The position of the tuyeres may be adjusted vertically by turning a nut 33 into which a sleeve 32 secured to the tube 16 is screwed. One or more spark arresters 27 in the form of a chain bag, or cone shaped perforated plate may be provided in the gas outlet 14.
Patent GB-707153-A (GB)
Title: Improvements in or relating to the separation of low molecular weight fatty acids from organic mixtures by distillation
IPC: C07C51/46
Filed: 1951-05-23
Abstract: Formic, acetic, propionic and butyric acids are separated from a "topped oxidate" (i.e. the residue left by distilling off low boiling components from the aqueous phase which separates from the products of the partial oxidation of hydrocarbons) by distilling the topped oxidate in a fractionating column at a temperature between 110 DEG C. and 150 DEG C. in the presence of steam and <PICT:0707153/III/1> an aromatic hydrocarbon such as benzene, toluene or xylene, whereby the lower fatty acids are obtained, together with water and aromatic hydrocarbon, in the distillate, while the more complex acids remain in the distillation-residue.  In an example, the water/toluene azeotrope was blown, in the vapour phase, into a topped oxidate obtained from normal heptane, maintained in the liquid phase at 140 DEG C.  There was about 90 per cent. recovery of each of the four acids (formic, acetic, propionic and butyric) in the distillate. Before separation of the lower fatty acids according to the invention, the topped oxidate is preferably submitted to a preliminary distillation for the removal of traces of water-insoluble constituents.  Crude oxidate, entering the apparatus shown through line 1, is fed to separator 2, where the hydrocarbon phase is removed and recycled through line 3 to the oxidation-reactor.  The aqueous phase is fed through line 4 to preheater 5 and thence to fractionating tower 7, where neutral light oil vapours are removed overhead.  Part of the light oil vapours are condensed in condenser 14, the condensate being removed from the system.  The remainder of the light oil vapours are condensed in condenser 11, the condensate being returned to the tower 7 as reflux.  Topped oxidate, withdrawn from the base of tower 7 through line 15, is distilled in tower 17. The condensed distillate from the head of tower 17 separates into two phases in vessel 20.  The lower or aqueous phase is returned to tower 17 as reflux; while the upper phase, which comprises carbonyl compounds and esters, is removed from the system through line 22. The topped and de-oiled acid, withdrawn from the base of tower 17 through line 25, is stripped in column 26, which is supplied with steam through line 38, and toluene through line 35.  Heavy oil is removed from the base of column 26.  The condensed distillate from the head of column 26 is separated into two phases in vessel 29, from which the aqueous fatty acid phase is removed from the system by line 30.  The toluene layer containing some higher acids is taken off by line 31 to distillation tower 32, from the head of which wet toluene is withdrawn via line 33 and condenser 34, and is recycled to column 26.  The acids withdrawn from the base of tower 32 through line 36 are blended with the aqueous fatty acid stream of line 30.
Patent GB-820570-A (GB)
Title: A fuel system for an internal combustion engine
IPC: F02D9/00
Filed: 1956-04-20
Abstract: 820,570. Spray carburetters. CHRYSLER CORPORATION. April 20, 1956 [April 28, 1955], No. 12111/56. Class 7(3) A fuel metering system comprises speed and load-responsive metering devices 44, 34, Fig. 1, the speed responsive device, Fig. 4, comprising a metering valve 280 actuated by a diaphragm 240 which is urged to the right by the pressure drop across the load sensitive metering device and is opposed by a centrifugal governor 288. The fuel nozzles 42 arranged in the separate intake manifold branches 24 are supplied with fuel and atomizing air through pipes 50, 54 by a combined fuel and compressed-air pump unit 32 identical with that described in Specification 819,812. The fuel flows through a pipe 46 and metering orifice 272, Fig. 4, into a chamber 242 of the speed sensitive device 44, from which it flows through pipe 48 to the load sensitive device 34, Fig. 3, comprising a metering valve 192 connected to a piston 214 actuated by intake manifold suction and loaded by a low-rate spring 228 which is in operation over the whole range and a high-rate spring 226 which only comes into operation at high suction over the lower half of the load range. The fuel flows through metering orifice 190 into a chamber 182 connected by passages 50 to the fuel nozzles. The fuel pressure downstream of the load sensitive device 34 is transmitted through a pipe 62 to a chamber 244, Fig. 4, which is sealed by a second diaphragm 252 connected to diaphragm 240 by a bar 254 actuated by the governor sleeve 304. The governor weights are designed to produce a constant axial force for a given engine speed regardless of their radial position. An accelerator unit 38 comprising a diaphragm pump actuated from the throttle control mechanism delivers into the pipe 50 downstream of the load sensitive device 34 and a pipe 64 bypassing the metering devices 44, 34, contains an idling and starting unit 36, Fig. 2, comprising an idling orifice 80, adjusted by a screwed needle 84. and "warm-up" and starting orifices 108, 150, the fuel from which passes through an orifice 122 which is normally closed by a needle 124 actuated by a solenoid 138 which is energized when the engine is cold. The starting orifice 150 is closed by a needle 152 which is lifted at starting by a solenoid 164 energized from the starter circuit. If the engine is warm at starting, the needle 124 maintains the starting and warm up orifices inoperative. Fuel leaking into the space below piston 214, Fig. 3, is drawn off through a pipe 60 forming one of the inlets of the double-acting air pump 32.
Patent GB-877831-A (GB)
Title: Fastener applying tool and power unit
IPC: B21J15/02
Filed: 1959-04-10
Abstract: 877,831. Hydraulic accumulators and intensifiers. HUCK MANUFACTURING CO. April 10, 1959 [April 18, 1958], No. 12167/59. Class 69 (2). [Also in Group XXII] An hydraulic power unit for use with a fastener applying tool (see Group XXII), comprises a casing having at least two fluid outlets for supplying fluid pressure to said tool and valve means for controlling the supply of fluid to one or other of the said outlets, said valve means being electrically operated in response to switch means on the fastener tool. The power unit comprises a hollow base 12 supporting a cylinder 14 on top of which is mounted a reservoir 16 provided with a flexible diaphragm 18. A tubular handle 24 of circular shape is bolted to a cover 20 which has a bearing portion 26a for accommodating a tubular stem 28 attached to the diaphragm 18. The diaphragm stem 28 carries a flanged collar 27 which co-operates with a safety switch unit 25. The hollow base 12 houses a valve assembly 30 (Fig. 8), containing a solenoid 32 which operates to supply compressed-air to either the top or bottom of a piston 50 in the cylinder 14, the piston 50 having a tubular central portion 52 slidable on a stationary piston 54 secured to the lower wall of the reservoir 16. The chamber 53 within the central tubular portion of the piston 50 is filled with hydraulic fluid so that when the piston 50 is raised, high-pressure fluid is fed through passages 60 and 62 to a flexible conduit 64 attached to a riveting tool (see Group XXII) to effect the riveting stroke. The piston 50 is provided with an upper portion 72 of larger diameter than a lower portion 74 so that when the piston is forced downwardly, fluid in an annular chamber 66 surrounding the piston is forced at a relatively lower pressure into a conduit 70, also attached to the tool, and this fluid pressure resets the tool piston. The chamber 80 in the reservoir 16 beneath the diaphragm 18 is filled with hydraulic fluid and the chamber 82 above the diaphragm communicates with the compressedair inlet 38. The chamber 80 is in communication via a check valve 94 with a passageway 62 through which passes the high-pressure hydraulic fluid from the chamber 53 so that the chamber 80 relieves any excess pressure in the chamber 53. Conversely, the chamber 80 makes up any deficiency of fluid in the chamber 53, via a second check valve (not shown). A similar pair of check valves are installed in communication with the annular chamber 66 for pressure relief and volume make up in the tool resetting circuit. As fluid is moved out of the chamber 80 the diaphragm moves downwardly until the collar flange 29 opens the switch 25 whereupon the chamber must be refilled and the switch reset before the power units can be operated.
Patent GB-798709-A (GB)
Title: Improvements in or relating to pressure regulating devices
IPC: G05D16/18
Filed: 1956-04-20
Abstract: 798,709. Fluid-pressure servomotor-control systems; valves. STRUVER GES AGGREGATEBAU, A. April 20, 1956 [April 23, 1955], No. 12169/56. Class 135. In a fuelling arrangement in which a single pump supplies a plurality of independent systems, a valve shut-off device is provided at the end of each delivery pipe and a control shut-off device operated in accordance with the pressure in the constriction of a venturi tube is located before the delivery pipe. A pump (not shown) supplies two independent systems through a pipe 1, Fig. 1, which divides into two branches 2, 3 leading to two systems. Each branch contains a control shut-off device, e.g. a valve 4 and a venturi 7. The valve 4 has a housing 11 containing two closure members 12, 13. The member 12 controls the flow from the inlet 15 to the outlet 16 and the member 13 the flow from the inlet 15 to the by-pass 20. Fluid under pressure is taken from a tapping 45 in the branch 3 via pipes 46, 47 to the orifice of a pilot valve 6 the closure member 49 of which is connected to a piston 57 loaded by a fixed spring 62 and an adjustable spring 65. The working side 58 of the piston 57 is connected to the constriction of the venturi 7 by a pipe 61 and a bore 59. The chamber 53 of the valve 6 is connected via an orifice 52 and a pipe 20 to the cylinder chamber 19 above the member 12. The chamber 53 is also connected by an orifice 55 and a pipe 56 to the pump inlet. The rear side of the piston 57 is also connected to the pipe 56. The pressure drop at the constriction 10 of the venturi 7 is equal to the pressure drop due to flow in the associated flexible delivery pipe 9 and the arrangement is such that the closure member 49 of the pilot valve 6 assumes a position according to the pressure at the venturi constriction so as to determine the pressure in the cylinder chamber 19 and so position the closure members 12 and 13 accordingly. The closure member 13 has a cylindrical extension 25 which seats in a casing 23. The extension 25 and casing 23 having superposed apertures 26, 24 respectively so that by rotation of the closure member 13 the by-pass can be adjusted. The position of the member 13 can be viewed through glass-covered openings 43, 44 in the housing 11. The adjustment of the loading spring 65 of the pilot valve may be viewed through a window 73. The pressure at the constriction of the venturi tube 7 can be used to act directly on the closure members 12, 13 which in this case may be loaded by compressed gas, preferably compressed air.
Patent GB-211383-A (GB)
Title: Improvements in louvre screens or blinds, ventilator frames, and the like
IPC: E06B7/082
Filed: 1923-05-05
Abstract: 211,383. Spencer, J. C. May 5, 1923. Louver venilators.-In sliding louver screens, ventilator frames and the like, each louver 3 is formed from a sheet-metal blank which is cut at 4, 4 upwardly from the lower edge, the portion between the cuts being bent outwardly as shown at 5, 6, Fig. 3. The upper edge of the blank is bent over to form a hook-like portion 7 which engages with the upwardly-bent lower edges 8 of the end-pieces of the blank immediately above. The louvers are assembled in the frame 1, Fig. 2, with the parts 7, 8 in engagement and are secured by screws 9 passing through the end portions which fit into recesses in the sides of the frame. The metal slats may be painted to imitate wood.
Patent GB-753390-A (GB)
Title: Improvements in or relating to airports
IPC: E01F7/02
Filed: 1954-04-27
Abstract: 753,390. Aircraft runways. STRATOPORT CORPORATION OF AMERICA. April 27, 1954 [April 29, 1953], No. 12206/54. Class 4. To avoid the necessity of a plurality of multi-directional runways at aerodromes a single landing strip comprising end-to-end opposed runways 30, 31 is provided along its sides with wind-deflecting screens 32 supported by bracing structure 54. The screens are perforated, preferably with circular holes, which may vary in size from top to bottom or each screen may be so perforated that when a number of screens are grouped along the side of a runway the porosity increases from the middle length of the runway towards each end. In other embodiments the screens comprise spaced slats arranged either vertically or horizontally or they may be formed from expanded metal or perforated corrugated sheet metal. In the arrangement of Fig. 1 the runways 30, 31 incline from the ends towards the centre to provide additional acceleration or retardation during take-off and landing respectively and a lateral track 40 connects the runways with dispersal points, though there may be a single level runway and the screens may be arranged along one side only. By this means aircraft can take-off or land on a single run. way substantially unaffected by cross winds.
Patent GB-487715-A (GB)
Title: Improvements in and connected with electric accumulators
IPC: H01M4/64
Filed: 1937-04-29
Abstract: 487,715. Batteries; electrodeposition of metals. COMPAGNIE GENERALE D'ELECTRICITE. April 29, 1937, No. 12280. Convention date, May 15, 1936. Drawings to Specification. [Classes 41 and 53] An accumulator plate or electrode comprises a metal support which is covered with an unattackable material provided with perforations which are filled with a conducting substance which makes contact with the metal support and with an outer layer of active material. The perforated material may be applied to a protective metal layer covering the support. The support may be made of aluminium, magnesium or an alloy of these metals and may be in the form of a grid or rod &c. The covering material may consist of perforated or porous ebonite or rubber, the perforations or pores of which are filled with lead, iron or nickel by making the covered support the cathode in an electrolytic bath of a salt of the metal. In another method the support which may be of aluminium is first covered with a protective layer of lead and then with a layer of microporous rubber and is then soaked in a solution of a lead salt and then immersed in sulphuric acid or a sulphate. The precipitated lead sulphate is reduced to lead by electrolysis in sulphuric acid. The electrode is finally pasted with active material.
Patent GB-995699-A (GB)
Title: Bacterial lysate or fraction thereof
IPC: A61K35/74
Filed: 1963-03-28
Abstract: A therapeutic preparation effective against tumours and microbial infections consists of a lysate or lysate fraction of a killed Bacillus subtilis type mesentericus QM-B1585.  The microorganism may be cultured in aerobic submerged culture at 37 DEG  C. in an aqueous medium containing peptone and saccharose.  The bacteria are separated from the medium by (a) centrifugation, (b) filtration or (c) addition of acetone.  The separated bacteria are killed and dehydrated by means of 20 volumes of acetone at -20 DEG  C. followed by ether at -20 DEG  C.  They are then dried.  The dried bacteria are subjected to lysis by treatment with (a) lysozyme in physiological saline at 37 DEG  C. for 35 minutes and then (b) a protease such as trypsin for 1 hour at 37 DEG  C.  An active fraction may be precipitated from the aqueous lysate by addition of (a) a copper salt such as CuSo4, (b) acetone or (c) cetyl trimethyl ammonium bromide.  The copper ions are removed from the copper complex by adsorption on a strong cation-exchange resin. The preparation is administered as the active fraction of the lysate, the aqueous lysate or the dried lysate.
Patent GB-242889-A (GB)
Title: A knotted cord trick device
IPC: A63F9/08
Filed: 1925-05-14
Abstract: 242,889. Smith, E. May 14, 1925. Puzzles.-A loop of cord A has its free ends sealed as at B and is knotted at e, one of the limbs being severed within the knot. Coupling members d, d<1>, which may be screwed, are secured to the cut ends so that the cut portions may be concealed to constitute a puzzle, for which purpose a ring C may be threaded on the loop. The coupling members may take the form of a pin-and-socket joint, held frictionally or by turning one of the members relatively to the other. A mass of sealing-wax may be applied to the cord in place of the knot to conceal the joint, or wax may be applied to the knot to prevent it being disturbed.
Patent GB-974134-A (GB)
Title: Oxazolidinone derivatives
IPC: C07D263/52
Filed: 1962-04-03
Abstract: 974,134. Oxazolidinone derivatives. SCIENCE UNION ET COMPAGNIE-SOC FRANCAISE DE RECHERCHE MEDICALE. April 3, 1962 [April 4, 1961; July 4, 1961], No. 12746/62. Heading C2C. The invention comprises compounds of the formula (wherein R 1 , R 2 , R 3  and R 4  are hydrogen, C 1-4  alkyl, aralkyl, cycloalkyl which may be C 1-4  alkyl substituted phenyl, alkylenedioxyphenyl or thienyl, or two of them may be a C 2-6  alkylene chain; X is -O- or -NH-; A is C 2-5  alkylene; and Z is a secondary or tertiary amino group in which two alkyl substituents may be joined either directly or through a further hetero atom or group) and acid-addition salts thereof; and their preparation by reacting the compound HO-AZ or H 2 N-AZ with an acid chloride of the formula Examples are given. Acid chlorides of the above general formula are prepared from phosgene and the sodium salts of the corresponding N-unsubstituted-oxazolidinones, themselves prepared by cyclizing reaction of substituted hydroxyamines with ethyl carbonate or phosgene or by Curtius degradation of substituted #-hydroxy-propionic acid hydrazides (prepared from esters of the acids and hydrazine). Alpha- (3<SP>1</SP>, 4<SP>1</SP>-methylenedioxyphenyl)- #-aminoethanol is prepared by reduction of the appropriate nitrile. The hydrochloride is described. The oxazolidinone derivatives of the invention, which are stated to possess analgesic, antipyretic and anti-inflammatory activity, and some of which also have anti-tussive and anti-convulsive activity, may be made up into pharmaceutical compositions with suitable carriers. Tablets, suppositories and injection solutions are referred to.
Patent GB-903369-A (GB)
Title: Trisazo-dyes
IPC: C09B35/362
Filed: 1960-04-11
Abstract: The invention comprises water-insoluble trisazo dyes of formula <FORM:0903369/IV (b)/1> wherein X is a hydroxyl group or a di-C1-C4 alkyl-substituted amino group and Ar is an aryl radical.  They are used in the dyeing of polyolefins.  In examples 1 mol of p 4-(41-amino- 21-methylphenylazo)- 1-aminonaphthalene prepared by reducing the nitro-azo dye 5-nitro-2-amino-toluene --> 1-naphthylamine is tetrazotised and coupled with 2 mols of 2-naphthol or N : N-dimethyl-m-toluidine.