baber/WOPTO huggingface dataset:
Patent GB-2470003-A (GB)
Title: A quantitative powder dispensing system
Inventor: WHITWELL ANDREW
IPC: B65B1/08
Filed: 2009-05-05
Abstract: The invention relates to system for dispensing specific quantities or doses of a powdered or pulverulent material. It comprises a hopper 10 having a dispensing outlet 11 and a vibration means 20 is attached to the hopper 10. A receptacle 40 receives dispensed powder from the hopper 10. A motorised shutter 30 is disposed between the dispensing outlet and the receptacle whereby the motorised shutter is moveable between a position in which the dispensing outlet is fully closed and a position in which it is fully open. An electronic balance 50 operatively engages with the receptacle and is connected to a control unit 80 which is also connected to the vibration means, the motorised shutter and the electronic balance means 50 so that the amount of dispensed material may be controlled.
Patent GB-1422332-A (GB)
IPC: F02M25/08
Filed: 1972-03-03
Abstract: 1422332 Treating charge; recycling exhaust HUNSLET (HOLDINGS) Ltd 22 Feb 1973 [3 March 1972] 10013/72 Heading F1B Apparatus for reducing the production of oxides of nitrogen by compression ignition engines, said apparatus comprising first means for introducing water into exhaust gases of the engine and second means for causing a part of the water bearing exhaust gases to be recirculated through the combustion chambers) of the engine, the first and  second means being arranged automatically to increase the volume of water recirculated through  the combustion chamber(s) as the power developed or the engine speed increases.  An engine 10 has an exhaust manifold 13 connected by a pipe 14 to a tank 20 partly filled with water. The pipe 14 includes a section 16, which may be a Venturi, or simply a nozzle 15 through which water is injected into the exhaust gas. A pipe 17 projects into the pipe 14 and is connected to the air intake pipe 11, so that suction draws off part of the water bearing exhaust gas for recirculation. The remainder of the exhaust gas is caused, by the provision of a partition 23 to bubble through the water in order to reach an outlet 22 to atmosphere. In a modification, the pipe 17, instead of being led into the pipe 14, projects into the tank via the outlet 22. The injection of water into the pipe 14 is omitted in this embodiment.
Patent GB-473139-A (GB)
Title: Improvements in or relating to fluid flow meters
IPC: G01F1/40
Filed: 1936-04-06
Abstract: 473,139. Flow meters. RICARDO, H. R., and ALCOCK, J. F. April 6, 1936, No. 10090. [Class 69 (i)] A fluid-flow meter, particularly for measuring the mean rate of a pulsating flow, comprises a passage containing a viscous resistance element A3, Fig. 1, offering a frictional resistance to the flow, a manometer C connected to the passage at each side of the element A<3>, and a viscous resistance element D in one or both of the manometer connections. The element A<3> comprises one or more long narrow passages offering a resistance substantially proportional to the rate of flow, and the subsidiary resistance elements D enable a steady manometer reading to be obtained, whilst offering such frictional resistance as to render negligible any kinetic non-linear resistance in the connecting-tubes ; the manometer readings are therefore proportional to the mean rate of the pulsating flow. The main resistance element may be formed of alternate layers of corrugated and plain strip material comprising, for example, separate sheets pressed together or two elongated strips placed together face to face and rolled to form a cylindrical element. In either case the corrugations form passages of triangular section which, in the case of a meter to deal with an air flow of about 30 feet per second, may be 0À017 inch high and 3 inches long. The elements D may be of felt. To eliminate the effect on the manometer of pressures produced by kinetic effects, which pressures are non- linear in relation to the flow, the connections to the manometer are such that the kinetic energy of the flow modifies the pressures in them so as to counterbalance the pressure difference set up by it on the two sides of the element A<3>. For example, the openings B<3> of the downstream connection B<2> may face upstream ; or, the opening B<1> of the upstream connection B may be arranged in a Venturi inlet A<1>; or both means may be employed together. To secure the desired correction, the end of the tube B<2> may be rotatable to vary the direction in which the orifices B<3> face, and the tube B may be longitudinally adjustable in the Venturi inlet. The adjustments may be made by trial and error, by passing air at constant known rates of flow through the apparatus, and adjusting the parts until the manometer readings are correct for all the rates in the range to be measured. Fig. 2 shows a meter suitable for connection to the induction pipe of an internal-combustion engine, in which the air enters through an annular filter F and passes through a resistance element E<1> formed of a pack of plain and corrugated sheets. The manometer connections G, K contain felt subsidiary resistance elements G<2>, K<2>, the former having an aperture G<1> in its end and the latter, which is rotatably mounted, apertures K<1> in its side. By longitudinal adjustment of the tube G and angular adjustment of the tube K, as described above, the kinetic pressure effects may be compensated.
Patent GB-582222-A (GB)
Title: Improvements in and relating to high frequency oscillators
IPC: H03B5/18
Filed: 1944-05-25
Abstract: 582,222. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). May 25, 1944, No. 10197. [Class 40 (v)] An oscillator comprises three coaxial cylinders 10, 11, 12 arranged one within the other, together with a valve 40, which may be of the type described in Specification 552,672. This consists of three disc members separated by sealed glass cylinders, the middle disc having a gauze covered aperture at its centre and forming the grid, while the other two discs carry the anode and cathode, these extending inwards to be in close proximity to the grid. The grid is connected to the intermediate cylinder 11 by a conducting ring 73, while the anode and cathode are connected to the two remaining cylinders as shown. The anode has a screwed connection with a solid conductor 65, through which H.T. is supplied and which also serves to conduct away heat, and is capacitively coupled to the inner cylinder 12 by insulating dielectric material 67. The cathode connection 46 is similarly capacitively coupled to the outer cylinder 10 by a flat metal ring 79 and an insulating plate 82. A screwed rod 90, projecting from the ring 79 into the space adjacent to the anode provides variable coupling between the anode and cathode. Both the anode and cathode circuits are tuned by sliding short-circuiting rings 21, 28, and power may be taken from the oscillator by means of a loop 32 connected to the external circuit by a concentric cable 33. If desired, the valve may be inverted, the anode being connected to the outer cylinder and the cathode to the innermost cylinder. Reference has been directed by the Comptroller to Specification 581,781.
Patent GB-1414079-A (GB)
Title: Production of isocyanates
IPC: C07C241/00
Filed: 1973-03-02
Abstract: 1414079 Preparation of isocyanates BADISCHE ANILIN- & SODA-FABRIK AG 2 March 1973 [3 March 1972] 10212/72 Heading C2C Isocyanates having the formula R-N = C = O where R is an aliphatic, cycloaliphatic, araliphatic, or aromatic radical, are prepared by reacting a carbamyl halide of the formula R-NH-CO-X where X is a halogen atom, with an olefin of the formula where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP>, which may be the same or different, are hydrogen atoms or alkyl radicals having 1 to 4 carbon atoms. The carbamyl halide may be formed in situ from a mixture of an amine hydrohalide of the formula R-NH 3 <SP>(+)</SP>-X<SP>(-)</SP> and phosgene.
Patent GB-108478-A (GB)
Title: Improvements in Sparking Plugs.
Inventor: RENE HENRY
IPC: H01T13/16
Filed: 1917-07-14
Abstract: 108,478. Henry, R., and Herrmann, E. July 27. 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 102,490. Sparking-plugs. -- In a ventilated plug of the type set forth in the parent Specification having a central electrode a which is hollow except at the sparking end and provided with holes d communicating with the atmosphere by passages f in the insulator, a space g, and apertures k in the plug body, the parts are retained in position by a nut l formed as a cap with apertures r<2>.
Patent GB-417661-A (GB)
Title: Improvements in or relating to the manufacture of moulded articles from synthetic resin and like thermoplastic materials
IPC: B29C33/40
Filed: 1933-04-06
Abstract: 417,661. Moulding synthetic resins &c. in stationary - mould and perforating machines. COLE, Ltd., E. K., and HAHN, E., Ekco Works, Priory Crescent, Southend-on-Sea. April 6, 1933, No. 10289. [Class 87 (ii).] In the moulding of articles from thermoplastic materials such as synthetic resin, the body part is formed between dies 2, 9 and whilst it is still plastic, pins or plungers 3 are displaced so as to form recesses or perforations or insert inlays therein and the curing is completed. The plungers 3 may be carried by the female die 2 and operated by cams 6 from handles 7, or they may be screwed or operated hydraulically. The plungers may be mounted in housings which are adapted to receive inserts, so that on movement of the plungers the inserts are pressed into the body part. Where the plungers are hydraulically operated they are connected to a piston working in a chamber in the die connected by ducts to a pressure-fluid source and controlled by a valve such that they are operated in a time sequence governed from the male die. In this case a projection on the male die engages an abutment at a required point in its pressing movement so as to operate the valve.
Patent GB-112388-A (GB)
Title: Improvements in or relating to Change Speed Gearing.
IPC: B62M25/00
Filed: 1917-07-17
Abstract: 112,388. Raven, W. H., and Raleigh Cycle Co. July 17, 1917. Variable-speed toothed gearing -In variablespeed gearing for use with motor-cycles, &c., toothed wheels fast on a lay-shaft gear with wheels loose on and clutchable to a driving-shaft and a driven sleeve on one end thereof and with a central loose wheel which may be clutched either to the shaft or to the sleeve. The driving-shaft a carries a loose wheel g and the driven sleeve d a loose wheel j, a third loose wheel h being arranged between the two. The wheels j, h, g gear with wheels n, m, l fast on a lay-shaft o. Four alternative positions of clutch sleeves k, i, on the sleeve and shaft respectively, give four speeds, one of them a direct drive. Additional pinions may be arranged on the shafts a, o and be thrown into operation by clutches to give additional speeds.
Patent GB-384886-A (GB)
Title: Gas mask conforming to the face
IPC: A62B18/02
Filed: 1932-04-11
Abstract: 384,886. Gas masks. SCHLEICH, F., 42, Weinstrasse, and CLORA-FABRIKATE CLOETTA & CO., 93, Pfadstrasse, both in M³nster, Stuttgart, Germany. April 11, 1932, No. 10333. [Class 81 (ii).] A gas mask of leather, rubber, or other soft material is made from two like parts, Fig. 4, the middle connecting edges e extending as undulated or similarly shaped lines as shown in Fig. 4, so that a shape conforming closely to the forehead and nose is obtained. Additionally, the eye rings n are in one vertical plane, Fig. 2. On the temple portion, pieces b extending to the eye apertures c are cut out and the resulting edges joined, and below the aperture for the mouth ring o, the lower edges l are strongly curved to conform with the chin. The side edges i extend as straight lines.
Patent GB-1037461-A (GB)
Title: A device for protecting a roll of paper
IPC: B65H75/18
Filed: 1964-03-12
Abstract: 1,037,461. End protectors for paper rolls. F. BUTTNER. March 12, 1964 [March 12, 1963; Aug. 8, 1963], No. 10403/64. Heading B8C. Protector plates for the ends of a paper roll are of greater diameter than the roll and are held in place by a tensioned band or wire passing through the roll central aperture and anchored in bushes projecting from the plates into the aperture. In one embodiment, wooden end plates 3 with attached discs 4 and bushes 3a have clamp elements 8, 13 mounted in sleeves 6, 11, the latter being biased outwards by a spring 10 to tension the band 16. A trigger 13a permits release of the band for removal of the plates. In another embodiment, a band or wire passes over rods 27, 30, 31 in the bushes and its ends are joined at 33 by twisting, clamping etc. The band or wire is cut to release the plates. In a further version, a ratchet-controlled winch is provided in one bush to tension the band (Fig. 5, not shown). The roll may be supported during application or removal of the end plates by a stand, Fig. 6, comprising a ramp 48 along which the roll, with end plates fitted, is rolled to fit in a cradle portion 49. The stand is then upended to rest on its side 46, the roll thereby being raised clear of the ground. After removal of the plates, the usual carrying bar is threaded through the roll to hoist it clear. In fitting the plates, the roll is placed in the portion 49, the plates fitted, the stand is rotated to rest on its side 45 again and the roll moved down the ramp.
Patent GB-623139-A (GB)
Title: Improvements in and relating to raising and lowering gear for sliding sash windows and the like
IPC: E05F11/44
Filed: 1947-04-18
Abstract: 623,139. Window regulators. TELEFLEX PRODUCTS, Ltd., and PILE, S. April 18, 1947, No. 10463. [Class 20(iii)] Vertically sliding sash windows are operated by transmitting and receiving mechanisms connected by a multi-stranded flexible cable, e.g. as described in Specification 380204, [Group XXIV], working in both directions in a guiding conduit 23, the transmitting mechanism having a screwed member or rack held from rotation and moving rectilinearly by engagement of its teeth with those of an axially fixed gear wheel or nut rotated by a handle, and the receiving mechanism having a slide or cross bar 18 with pin and slot connection to two symmetrically disposed levers 12 carrying a roller 13 at their ends remote from their pivots 9, engaging in a channel in the glazing bar 14 &c. at the lower edge of the window. The short arms of the levers have pins 16 which work in slots 17 of the cross bar which is attached by a screw 19 to a member 20 caused by the cable to slide within a guide 21 on a mounting plate 7. Springs 26 are associated with the levers to compensate for the weight of the window.
Patent GB-281159-A (GB)
Title: Improvements in rotary valves for internal combustion engines
IPC: F01L7/02
Filed: 1927-04-19
Abstract: 281,159. Seifert, C. H. April 19, 1927. Closure members. -A pair of rotary valves, comprising hollow cylinders 6 formed with ports 12, 13, &c. controlling inlet and exhaust respectively in internal-combustion engines, are provided with diagonallyarranged packing-rings 16, Fig. 2, extending across the paths of the ports. Other packing- rings 14 may be arranged between the diagonal rings. Fig. 3 shows a modified arrangement of diagonal rings 18.
Patent GB-331821-A (GB)
Title: Improvements in and relating to the production of finely divided carbon or carbon black
IPC: C09C1/52
Filed: 1929-04-04
Abstract: 331,821. Lewis, G. C. April 4, 1929. Carbon.-Carbon is produced by heating a hydrocarbon-containing gas to a temperature at which the hydrocarbon constiuents react chemically but without the production of free carbon, cooling the resultant mixture by expan sion to a temperature not below that at which any constituent condenses out, and incompletely burning the whole of the resultant mixture. In one form of apparatus for carrying out the process, a supply pipe 14, which may first be led through a chamber 10 to obtain preheating from the waste gases from burners 13, passes through a counter-current heat interchanger 20 and an expansion chamber 16 into a serpentine or other passage 17. This passage, preferably of fire brick or other non-metallic material, is heated by fuel on a grate 18, or by liquid or gaseous fuel burners, to a temperature which varies with the gas under treatment, e.g. for natural gas, from 600‹ C. to 850‹ C. If the heating apparatus has nickel or iron walls, a lower temperature will be employed but the temperature must be below that at which free carbon is formed. After leaving the furnace, the gas, which now contains free hydrogen and heavier hydrocarbons principally of the aromatic series from benzene to anthracene, flows into the expansion chamber 16, and through the outer pipe 19 of the heat interchanger to the burners 13, the flames from which impinge on channels 11 provided with the usual reciprocating and carbon removing means, if carbon black is desired, or the gas is burned with a smoky flame if lamp black is desired. Further cooling means may be employed. Specifications 309,892 and 316,999 are referred to.
Patent GB-548986-A (GB)
Title: Improvements relating to braking mechanism
IPC: F16D65/22
Filed: 1941-08-20
Abstract: 548,986. Brakes. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. Aug. 20, 1941. No. 10602. Addition to 524,972. [Class 103 (i)] A modification of the chassis described in the parent Specification and which provides for a combined hydraulic and mechanical operation of a brake in the same manner comprises a cylinder 4 secured to the brake anchor plate and within which is slidable a flanged sleeve 5, 5a having an end post 5b that is solid except for a transverse slot within which is pivotally secured a rod 9 connected to a hand lever by which mechanical operation of the brake is effected. A T-head 12a in the rod 12 of the brake shoe expander is slidable in the slot of the post 5b and normally abuts on the sleeve 5 and on a flanged collar 6, 3a which forms the hydraulic piston. A circlip 13 holds the head 12a in the slotted end of the collar 6. Upon supply of pressure liquid to the space A by operation of a pedal, the piston 6, 6a slides on the sleeve 5 taking the rod 12 with it and upon operation of the rod 12, the posts 5, 6, 12 move together. If there has been excessive wear of the shoe linings, the hand lever and pedal may be operated together to obtain a greater movement of the expander than is possible by the operation of either means individually, as described in the parent Specification.
Patent GB-112244-A (GB)
Title: Improvements in Spring Control for Automobiles and the like.
Inventor: KNUDSON MARTIN NESTRAN
IPC: F16F9/18
Filed: 1917-07-24
Abstract: 112,244. Knudson, M. N. July 24, 1917. Fluid-friction vibration-dampers. - A dash-pot arrangement connected between the vehicle and spring by ball joints 24, 26 top and bottom has a cylinder 8 centrally attached to a casing 7 by radial ribs. The casing is closed by screw caps 10, 11, and an internal slush head 12 provided with a return valve 13. The cylinder, closed at the top and open to the casing below, has a piston 17 provided with a piston-rod 20 working in packed bearings in the piston head, slush head. and casing. The piston has valve openings 19 and a valve plate 19<1> in which there are small openings and also guide-pins. An opening 28 in the cylinder, above the piston, is provided with a regulating screw 29 passing through the casing. The casing is provided with an upwardly bent filling tube 15 provided with a closing screw 16.
Patent GB-1057643-A (GB)
Title: Concentrated phosphoric acid
IPC: C01B25/24
Filed: 1964-03-13
Abstract: The invention relates to a composition comprising concentrated phosphoric acid containing 1 to 15% metal impurities prepared by concentrating wet process orthophosphoric acid, the concentrated phosphoric acid being liquid at ambient temperatures, having a phosphorus content of 78-98 weight per cent expressed as P2O5 equivalent on an impurity-free basis and containing substantially no metaphosphoric acid, at least 70% of its P2O5 content being present as polyphosphoric acid. The boiling point of such an acid is in the range 450-750 DEG  F. SO3 may be present in the phosphoric acid undergoing concentration, e.g. in the form of H2SO4, and the concentrated phosphoric acid is then the reaction product of SO3 and phosphoric acid and preferably contains 0.8 to 3.5 weight per cent of SO3.  Nitric acid, optionally accompanied by H2SO4, may also be added to the phosphoric acid undergoing concentration and the composition is then the reaction product of phosphoric, nitric + sulphuric acids. The concentrated phosphoric acid may be prepared by bringing hot gases into contact with the wet process phosphoric acid (optionally containing H2SO4 and/or HNO3) to bring the acid to a temperature in the range 450-750 DEG  F. and maintaining this temperature to dehydrate the acid to the above-mentioned concentration. In one embodiment, wet process phosphoric acid is supplied to an evaporator to provide a pool therein, and the acid pool is maintained at the desired temperature by gas heating, the gaseous products of combustion being directed into the pool and the volume of such combustion gas being maintained at a substantially constant level. The wet process phosphoric acid before dehydration may contain 6-9 weight per cent of SO3 or HNO3 may be added thereto to bring the nitrogen content to 0.2-0.7%.
Patent GB-680480-A (GB)
Title: An improved control unit for heating and ventilating systems
Inventor: WILLET SYDNEY EDGAR
IPC: B60H1/00
Filed: 1950-05-01
Abstract: 680,480. Ventilation. CLAYTON DEWANDRE CO., Ltd. May 28, 1951 [May 1, 1950], No. 10715/50. Class 137 [Also in Group XXIX] A control unit, for selectively operating the relay valves (see Group XXIX) and fan-motor switch of an air-heating and ventilating system, particularly for a vehicle, in which the said relay valves control the application of a pressure fluid, or vacuum, to means which regulate the amount and direction of flow of air for ventilation, and the supply of heat thereto, comprises a casing 1 in which is mounted a shaft 2 operated by a handle 3 and carrying a cam disc 7 and switch-operating arm 5, the cam lobes 8, 9 bearing on arms 10, 11 which actuate the relay valves 14, 15. The valve 14 controls the application of fluid pressure, or vacuum, to a jack 31 which is coupled by a rod 35 to swinging dampers 33, 34 in a duct 36 open at its ends 36a, 36b, and the valve 15 controls the application of pressure or vacuum to a valve 32 which controls the supply of hot water from the engine cooling system to the air-heater 30, the valve 32 being kept closed by the said application. When the handle 3 is in the position shown in Fig. 1, the valve 15 is positioned to admit pressure or vacuum to the pipe 39 and thus to close the hot-water valve 32; the dampers 33, 34 are in the positions shown and the fan motor is inoperative. When the handle 3 is turned to the vertical position, the valve 15 still maintains the valve 32 closed and the valve 14 is moved to admit pressure or vacuum to the jack 31 whereby the damper 33 is opened and the damper 34 is closed. Air enters the duct 36 through the end 36a and passes through the opening 40 to the distributing ducts 41, 42. When the handle 3 is moved fully to the right, the valve 15 relieves the valve 32 and hot water passes through the flow and return pipes 44 serving the heat-exchange coils of the heater 30, and the arm 5 actuates the switch 6 which has connections 44 with the fan motor. The dampers 33, 34 remain open and closed respectively. By providing additional lobes on the cam 7 and/or providing additional valve members, a greater combination of operating conditions may be obtained by using a single handle. For example, in order to heat the vehicle quickly, the apparatus may be arranged so that in one position of the handle 3, the dampers 33, 34 are as shown in Fig. 1, the fan motor is switched on and the valve 32 is open so that the air drawn from the inside of the vehicle through the opening 36b will be heated and returned to the vehicle through the fan and ducts 41, 42. The pressure liquid in the hydraulic brake system may be used to operate the apparatus.