baber/WOPTO huggingface dataset:
Patent GB-381451-A (GB)
Title: Improvements in or relating to refills for powder boxes
IPC: A45D33/00
Filed: 1932-02-24
Abstract: 381,451. Powder boxes. MLHENS, P. P., (trading as EAU DE COLOGNE & PARFMERIE-FABRIK GLOCKENGASSE NO. 4711), Cologne, Germany. Feb. 24, 1932, No. 5544. Convention date, Sept. 9, 1931. [Class 18.] A powder box refill for holding loose cosmetic powder comprises a dish member d and a powderpermeable flexible cover b, the cover being yieldingly held in position so that, as the powder is removed therethrough, it becomes more and more permanently depressed owing to the dislodgment of the yieldingly held portion and is always in contact with the surface of the powder in the dish member. The edge of the cover b which is a perforated member or formed of metal or fabric gauze is held between turnedin flanges on the upper edges of the dish d and a ring d<2> surrounding the dish; the powder being removed by pressing on the middle of the cover which is thereby permanently depressed due to its edge slipping between the flanges by which it is held. The ring d<2> is provided with a further flange d<3> which grips the bottom edge of the dish. The refill is held in an outer case e provided with a lid f. The dish may be of any desired shape.
Patent GB-278942-A (GB)
Title: Improvements in garment cleaning appliances
IPC: D06F43/00
Filed: 1927-02-28
Abstract: 278,942. La Measure, L. J. Feb. 28, 1927. Garment stretchers. -A support for garments being cleaned i; rotatably mounted upon a horizontal shaft 4 and comprises a pair of flat boards 5 oppositely inclined to the axis of the shaft. The boards are mounted on a metal bar 6 bent at 7 and mounted loosely on the shaft 4. Between the boards and the bar 6 springs 12 are interposed surrounding pins 10 which are rigidly secured to the boards and pass through holes in the bar 6, being retained by other pins.
Patent GB-465381-A (GB)
Title: An improved method and appliance for cold pilgering pipes
IPC: B21B21/02
Filed: 1936-02-25
Abstract: 465,381. Cold-rolling tubes. PIPE & TUBE BENDING CORPORATION OF AMERICA. Feb. 25,1936, No. 5666. Convention date, Feb. 25, 1935. [Class 83 (iv)] A tube is cold rolled on a mandrel by pilger rolls, the pass of which is wider at the flanks of the grooves and then merges into the circular form, so that the tube metal at the sides of the pass is first thickened, Fig. 2, and remains substantially in contact with the mandrel owing to the abutting roll edges forming a closed pass and then after the usual 90‹ rotation of the tube as in Fig. 3, the thickened part is rolled out to normal in the next pass as in Fig. 4. The widened sides of the pass terminate with tangent at right angles to the roll edges.
Patent GB-1416005-A (GB)
Title: Method of manufacturing a gallium phsophide red-emitting device
IPC: H01L33/00
Filed: 1974-02-07
Abstract: 1416005 Semiconductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 7 Feb 1974 [22 Feb 1973 (2)] 05706/74 Heading H1K A GaP red-emitting device is manufactured by liquid-phase epitaxial deposition of an N- type GaP layer on an N-type GaP substrate, the donor concentration at the surface of the N-type layer being less than 10<SP>18</SP> cm.<SP>-3</SP>, and subsequent liquid-phase epitaxial deposition of a P-type GaP layer employing a cooling rate of less than 5‹ C./min. Fulfilment of these two conditions results in growth of good quality crystal in the vicinity of the emitting junction, and this in turn produces an efficient red emitter, particularly if the grown wafer is heat treated at 450-600‹ C. for 2-20 hours. The luminescent centres in the P-type layer are Zn-O pairs. Suitable donors for the substrate and N-type layer are S, Se and Te.
Patent GB-1247951-A (GB)
Title: Process for preparing melamine from urea
IPC: B65D39/02
Filed: 1969-02-03
Abstract: 1,247,951. Melamine. STAMICARBON N.V. 3 Feb., 1969 [2 Feb., 1968], No. 5796/69. Heading C2C. In a process for preparing melamine from urea obtained in a high-pressure urea-synthesis unit, in which urea is converted to melamine in a melamine-synthesis unit and product melamine is separated from the effluent gas leaving a gaseous mixture of NH 3 , CO 2  and H 2 O, a gaseous mixture of NH 3  and CO 2  containing less than 5% by wt. water vapour is recovered for recycle to the urea-synthesis unit by cooling the gaseous mixture from which product melamine has been removed, if desired with a further addition of water or an aqueous ammonia carbon dioxide solution, whereby an aqueous solution of ammonium carbamate or carbonate and, if desired, free NH 3 , is obtained and subjecting said solution to counter-current contact with CO 2  under urea-synthesis pressure with simultaneous heating to the required recycle mixture. The counter-current CO 2  treatment is preferably effected at 100-150 atmos. and part of the remaining desorbed solution may be returned, after cooling, to the initial condensation stage. Any free ammonia obtained may be recycled to the melamine-synthesis unit. The process is illustrated by reference to flow diagrams (not shown).
Patent GB-1211302-A (GB)
Title: Barium sulphate reflectance standards
Inventor: GRUM FRANC
IPC: G01N21/47
Filed: 1968-02-06
Abstract: 1,211,302. Optical apparatus. EASTMAN KODAK CO. Feb.6, 1968 [Feb.6, 1967], No.5831/68. Heading G2J. [Also in Divisions B2 and C1] Barium sulphate is prepared by adding, simultaneously, an aqueous solution of barium chloride and a solution containing both sodium chloride and sulphuric acid to a further solution containing both sodium chloride and sulphuric acid, the mixture being maintained at a pH below 2, and a temperature above 50‹ C. A reflectometric standard mixture of from 100:1 to 500:1 (by wt.) of barium sulphate to polyvinyl alcohol is used in a spectro-reflectometer. The inside surface of the integrating sphere is coated with the standard mixture, and a plaque of this mixture is used as a standard at one of the sample ports.
Patent GB-380362-A (GB)
Title: Improvements relating to boilers for hot water heating systems
IPC: F24H1/36
Filed: 1932-02-27
Abstract: 380,362. Internally-fired boilers. FELL, C. A., Spring Bank, Etwall, near Derby. Feb. 27, 1932, No. 5875. [Class 64 (i).] A boiler for hot water or steam has an annular combustion chamber f extending nearly to the top of the water tank d and divided medially by a cylindrical baffle plate g so that the hot gases pass up over it and down round the bottom and up the outside and round the top of the tank to a chimney. The outer wall of the flue passage forms the inner wall of the air inlet m, air being preheated in a passage o, which with the plate g is continued to the base of the boiler, the air then entering the furnace by holes n. Fuel is fed to the boiler through apertures j, c. The grate has a dead plate i and may be vertically adjusted, and shaken or rotated to remove ash. Water is fed and withdrawn by pipes e or e<1>. Combustion may be regulated by thermostats controlling a damper in the chimney or a supplementary supply of cold air.
Patent GB-1495454-A (GB)
Title: Cooled mechanical seal assembly
IPC: F16J15/16
Filed: 1975-02-12
Abstract: 1495454 Seals FEODOR BURGMANN DICHTUNGSWERK 12 Feb 1975 [22 Feb 1974] 5880/75 Heading F2B In order to obviate the need for a coolant circuit, cooling fins 35d are provided, on a housing part 23c, in good thermal contact with a fixed stationary sealing ring 20<SP>1</SP> or 41, so that forced or non-forced atmospheric cooling can occur. If the fan 50 is omitted, the direction of air flow may be reversed. The cooling fins may be provided in the form of annular ribs (35a, 35c, Fig. 1, not shown). The rings (20), 20<SP>1</SP> and 41 may be of tungsten carbide.
Patent GB-592017-A (GB)
Title: Improvements in boat hull forms
IPC: B63B1/20
Filed: 1945-03-08
Abstract: 592,017. Hydroplane vessels. HIGGINS, A. J. March 9, 1945, No. 5909. [Class 113 (ii)] A boat hull of hard chine form has the transverse sections of the main portion of the planing bottom formed from curves of the same hollow curvature. These are variously inclined about an axis p situated in a plane parallel to the centre line plane of the vessel.
Patent GB-1215628-A (GB)
Title: Semi-moist food products
IPC: A23K3/00
Filed: 1968-02-06
Abstract: 1,215,628. Semi-moist foods. GENERAL FOODS CORP. 6 Feb., 1968 [20 Feb., 1967], No. 5941/68. Headings A2B and A2D. A semi-moist food, especially animal foods, having a moisture content of 15-40 wt. per cent. in a matrix of nutritional materials contains a stabilising amount of water soluble materials of which at least 5 wt. per cent. are subhexosic polyols, for example glycerol or propylene glycol, derived from hydrogenolysis, as defined, of an amylaceous material. The remaining amylase-derived moielies may be substantially reduced to sugar alcohol. The amylaceous material may be exosic, for example a monosaccharide such as glucose.
Patent GB-445833-A (GB)
Title: Improvements in or relating to conveyor mechanism
IPC: B65G17/16
Filed: 1934-10-05
Abstract: 445,833. Endless chain elevators. HALL, W. A., Kelowna, Durham Road, Gateshead, Co. Durham. Oct. 5, 1934, No. 6050/36. Divided out of 445,769. Drawings to Specification. [Class 78 (i)] The subject-matter is the same as that of Specification 445,769, but the invention claimed relates to the supporting and guiding of the moving grid-like platforms.
Patent GB-374422-A (GB)
Title: Process for the conversion of unsaturated aliphatic hydrocarbons into higher hydrocarbons
IPC: C07C2/00
Filed: 1931-02-26
Abstract: <PICT:0374422/III/1> In the conversion of unsaturated aliphatic hydrocarbons to higher hydrocarbons in the presence of catalysts such as aluminium oxide with or without potassium oxide or carbonate, the initial materials are heated in a conversion tube 3 contained in a block 1 of heat-insulating or other material, the heat being derived from an electric resistance.  Through the packing closing this tube pass a pipe 4 for the gas to be converted, a thermoelectric thermometer 7, and the cooling device 2.  Cooling water enters at 5, and passes off at 6, and steam is discharged through the opening 9. The product is taken off through discharge pipes, liquid being collected in a vessel 8.ALSO:The conversion of pure or diluted unsaturated aliphatic hydrocarbons, such as acetylene and ethylene and their homologues into higher <PICT:0374422/IV/1> hydrocarbons such as benzene is conducted in apparatus having hot walls at say 580 DEG  C. opposite to cold walls at say 75 DEG  C. Catalysts such as aluminium oxide or aluminium oxide with an addition of 10 per cent of potassium carbonate may be used if desired.  The relatively cold walls may be designed as sets of tubes or the like, which may be filled with water at suitable temperature, if desired with water boiling under pressure, or with any other suitable liquid, which may be boiling at normal, elevated or reduced pressure.  In some cases it is advantageous to insert substances which are good conductors of heat between the hot and cold walls.  The catalysts may then be applied to or inserted in the interposed bodies.  In the example, 50 litres of acetylene are passed per hour through a tube 70 cms. long and 2 cms. in diameter.  Within this tube is a copper tube 6 mm. thick, through which water flows.  The temperature of the hot tube is approximately 580 DEG  C., and that of the cold tube 75 DEG  C.  The space between the two tubes is filled with small pieces of aluminium oxide which contains some potassium oxide.  90 per cent of the acetylene is converted into fluid products which contain benzene, toluene and naphthene.  The apparatus illustrated in the drawing consists of a conversion tube 3 contained in a block 1 of heat-insulating or other material and heated by an electric resistance.  Passing through the packing closing this tube are a pipe 4 for the gas to be converted, a thermoelectric thermometer 7, and the cooling device 2.  Cooling water enters at 5 and passes off at 6, and steam is discharged through the opening 9.  The product passes away through discharge pipes, liquid being collected in the vessel 8.
Patent GB-742728-A (GB)
Title: Improvements in control systems for mechanical stokers
Inventor: BANES WILLIAM
IPC: H02P7/18
Filed: 1953-03-05
Abstract: 742,728. Control of two motors. DANKS & CO. (OLDBURY), Ltd., E. March 5, 1954 [March 5. 1953]. No. 6145/53. Class 38(3) [Also in Group XII] A furnace having a forced draught fan and a mechanical stoker with means for controlling its speed of operation is provided with a control system in which the stoker speed control means automatically effects, on stoppage of the fan, reduction of the stoker speed to a predetermined idling speed. The invention is described as applied to a Lancashire boiler each tube 2 of which is fitted with a chain grate stoker 3 of the kind described in Specification 676,360 [Group XII]. The grate is driven through gearing 7, 8, 9 from an electric motor 10 above which is arranged a starter 12 having start and stop push buttons 13, 14. Above the starter 12 is disposed a stoker speed regulator 15 having a regulating handle 16, while below the level of the furnace tube 2 is arranged a forced draught fan 24 driven by a motor 25 and delivering to two branches 28 which lead to both sides of the grate between the upper and lower runs. The motor 25 has mounted thereon a fan starter 29 and relay 30, the starter having start and stop push buttons 31, 32. An electric, systemconnecting the stoker motor 10, starter 12, speed regulator 15, relay 30, fan motor 25 and starter 29 is described which functions, on stoppage of the fan motor, either by the operator actuating the stop button 32 when it becomes'necessary to remove ash through the ashpit door 23, or through failure of the power supply, to reduce automatically the speed of the stoker motor 10 to a predetermined idling speed irrespective of the setting of the handle 16 and, on restarting the fan motor, to restore the stoker motor speed to that corresponding to the setting of the handle 16. In a modified automatic control system means, responsive to the steam pressure in a steam boiler or the water temperature in a water boiler, is adapted when the characteristic reaches predetermined high and low values to stop and start the fan motor, the stoker operation then taking. place as described above.
Patent GB-546518-A (GB)
Title: Improvements in machine vices
IPC: B25B1/24
Filed: 1941-05-15
Abstract: 546,518. Vices. HIRST & SON, Ltd., A., and HIRST, J. K. May 15, 1941, No. 6264. [Class 61 (ii)] A machine vice of the kind provided with a sliding jaw and dog, the latter fitted with a tightening screw and engaging teeth in the vice body comprises a body A and fixed jaw A<SP>2</SP>, sliding jaw B and sliding dog C, the body A being formed with a row of teeth A<SP>1</SP> on either side of the central screw and co-acting therewith sets of toothed plates E carried in pockets c on either side of the dog C and provided on the underside with teeth E<SP>1</SP>, E<SP>2</SP> in stepped relationship so that engagement will take place between the rack teeth A<SP>1</SP> and the teeth on one or other of the plates when the dog is moved through a fraction of the tooth pitch, the plates having enlarged apertures e engaging a cross pin e<SP>1</SP> thus allowing of their free movement. The tightening screw D works in a nut F having an external thread of rapid pitch engaging the dog or a sleeve in the dog, the nut F having clutch teeth engaged by clutch teeth on a collar H mounted on a plain part of the screw D and pressed by a spring J so that when no material resistance is offered to the jaw B the latter is traversed quickly by the quick pitch thread of the nut but in the final clamping the clutch collar slips, nut F remaining stationary and the slow pitch screw D working in the nut F.
Patent GB-572623-A (GB)
Title: Improvements in or relating to dish-washing and like machines
IPC: A47L15/23
Filed: 1944-04-04
Abstract: 572,623. Dish - washing machines. ABBEY, A. (Halldorsson, G.). April 4, 1944, No. 6296. [Class 138 (i)] A dish-washing machine comprises a cabinet F to receive the articles which are placed on shelves H<1>, H<2>, access to which is obtained through a door E hinged about an axis D offset from the plane of the door to make it selfclosing. Cleansing water is delivered by an intake pipe K to a rotary spraying device in the form of a tube C rotatable about its longitudinal axis by means of a driving-tube R which delivers sprays in opposite directions. Radial and inclined jets are delivered through apertures S<1>, S<2> in the tube C. The tube C is mounted in bearings which afford clearance to compensate for longitudinal expansion, at one end being mounted in a bracket B by means of a sliding pin, and at the other being connected to a bronze bushing A adapted to tighten against a flange or an inlet mouthpiece M. The base of the cabinet F slopes towards a drainage outlet, and the cabinet may be hung on a wall. A vent opening Q is provided in the top of the cabinet, and deflectors are provided to prevent water from leaking through the door E. The shelf H<2> may hold plates in an inclined position.
Patent GB-1006001-A (GB)
Title: Controlling and regulating device
Inventor: ZUHLSDORF WERNER
IPC: G05F1/445
Filed: 1964-08-17
Abstract: 1,006,001. Switching systems. INSTITUT FUR REGELUNGSTECHNIK. Aug. 17, 1964, No. 6341/62. Heading H2H. In a control circuit in which a control signal causes operation of a relay to energize an adjusting element means are provided to ensure that the relay contact closes and opens under minimum current conditions. As shown in Fig. 1 an input signal of a given magnitude to a terminal 9 renders a transistor 3 conductive whereupon when a positive half-wave of the A.C. supply U SP  flows through a rectifier 4 a relay coil 1 is energized to close its contact 2. No current flows in the contact 2 when closing due to the blocking effect of a diode 5 but after closure of the contact 2 negative half-cycles of the supply U SP  are effective to energize an adjusting element 8. During the negative half-cycles the relay 1 is maintained firstly by the discharge of a condenser 10 and thereafter by the current flowing in a circuit comprising diodes 6, 7. When the signal applied to the terminal 9 reaches a certain potential the transistor 3 cuts off whereupon the relay coil 1 is de-energized and contact 2 opens. A second relay, energized as a result of the energization of the relay coil 1, may be added to the circuit, the second relay being associated with a diode reversely connected to that associated with the first relay so as to utilize both the positive and negative half-waves of the A.C. supply. The transistor collector supply is obtained from a comparator circuit shown in Fig. 3 where the potentials applied to terminals 15, 16 control the currents flowing in the emitter-collector paths of transistors 17, 18. If these currents are unequal a potential is generated at the junction of the diodes 21, 22 this potential being applied to the collector of the transistor 3. The potential existing at terminal 25 or terminal 27 is applied to terminal 9 according to whether the reference voltage 16 is less or greater than the control voltage. Other signals may be applied to the system by way of terminals 28-31.
Patent GB-1279531-A (GB)
Title: Water-insoluble coumarin dyes
IPC: D06P1/16
Filed: 1970-02-10
Abstract: 1279531 An amido-acrylonitrile SUMITOMO CHEMICAL CO Ltd 10 Feb 1970 [18 April 1969 22 Aug 1969 4 Oct 1969 13 Nov 1969 27 Dec 1969] 6390/70 Heading C2C [Also in Division C4] In Example 91 α-(α-naphthylaminocarbonyl)- # - (2 - hydroxy - 4 - diethylaminophenyl)- acrylonitrile is prepared by reacting cyanoacetic acid-α-naphthylamide and 4-diethylamino-2- hydroxybenzaldehyde in dioxane in presence of piperidine. The product, recrystallized from chlorobenzene, has a m.p. of 177-179 C.
Patent GB-935594-A (GB)
Title: Improvements in vacuum cleaners of the cylinder type
Inventor: LING GORDON MICHAEL
IPC: A47L9/10
Filed: 1961-02-22
Abstract: 935,594. Exhaust silencers. GOBLIN (B.V.C.) Ltd. Dec. 21, 1961 [Feb. 22, 1961], No. 6483/61. Class 7(2). [Also in Group XXVIII] A silencer adapted to be connected to the exhaust opening of a cylinder type vacuum cleaner comprises a structure having shallow bell mouth 4 presenting an annular seating 7 against which a filter 8 is pressed by a rigid perforated external cover 10. The filter 8 comprises superimposed bonded fibre fabric layers, and, if desired, a perforated backing disc 9.
Patent GB-345067-A (GB)
IPC: C10K1/34
Filed: 1930-02-27
Abstract: 345,067. Gas purifying materials. HUMPHREYS & GLASGOW, Ltd., Carlisle Place, London.-(Assignees of Fulweiler, W. H. and Cleveland, T. K.; Broad Street, Philadelphia, U.S.A.) Feb. 27,1930, No. 6552. Convention date, May 17, 1929. [Class 55 (ii).] In processes for removing sulphur from gases, the latter are passed over heated zinc oxide with or without a promoter to decompose organic sulphur compounds such as carbon bisulphide, mercaptans or thiophene, to form hydrogen sulphide which is removed by ordinary methods. Hydrogen sulphide initially in the gases may be removed before this treatment. Undecomposed organic sulphur compounds are absorbed by sulphuric acid. The zinc oxide may be precipitated on pumice or on magnesium sulphate. Chromium, vanadium, cerium may be used as promoters. Specification 305,027, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-729607-A (GB)
Title: Fluid pressure control valve
Inventor: ANDERSON JOHN WILLIAM
IPC: G05D7/01
Filed: 1953-03-11
Abstract: 729,607. Fluid-actuated valves. PRODUCTIVE INVENTIONS, Inc. March 11, 1953, No. 6745/63. Class 135. A valve for automatically controlling the operation of a vacuum motor or the like comprises a valve chamber with spaced parallel walls 7, 14 one of which has a tubular extension 18 connectible to a source of vacuum and a valve seat 20, and the other 7 of which has secured thereto another tubular extension 29 which may be connected to a vacuum motor or other device to be operated, a flexible valve element 9 movably mounted in the valve chamber so as to be responsive to the difference of fluid pressure between its opposite sides, and means for normally supporting the valve element in a position slightly spaced from its seat. The latter means comprises a dished pressure plate 10 an off-set flange 34 on which presses the ends of the valve element against a rest 23 formed as a corrugation in the circular end wall 14. The plate 10 has apertures 36 for the passage of fluid and a central neck or flange 35 which locates one end of a compression spring 13 the other end of which is supported by a conical abutment 37 carried on the inner end of an adjusting screw 11. The screw 11 is supported in a bearing 27 secured to the end wall or cover 7 of the valve chamber. The screw 11 is operated by a knurled head 41 having a reduced neck 43 embraced by the spring arms 45 of a hairpin-like clip 46 also embracing the tubular extension 29. The clip thus holds the screw 11 in adjusted position. The valve element is substantially oblong in shape being curved at the ends to conform to the circular wall 15 of the valve chamber. The valve element is normally flat but under the pressure of the plate 10 on its ends becomes dished or curved in both the vertical and horizontal planes. On the attainment of a certain fluid flow the valve element snaps over from the curved form to a position adjacent the valve seat and further increase of flow causes the valve to seal completely against the seat 20. The valve element has a central vent hole 33 to deal with high values of fluid flow above the snapover point and may be exchanged for a valve element having a vent hole of different size. The invention is particularly applicable to the vacuum motors of windscreen wipers for motor vehicles, the motor being connected by a flexible hose to the tubular connection 29, and the intake manifold of the engine being similarly connected to the tubular connection 18. In a modification, Fig. 9, the spring element loosely supports a valve member 55 with a conical portion 60, 61 of different diameter. The valve member 55 co-operates with an aperture 56 in the flexible valve element 48 and may be adjusted by the screw 52 to suit motors of different capacity.