baber/WOPTO huggingface dataset:
Patent GB-821183-A (GB)
Title: Improvements in or relating to a device and method for sealing punctures in tubeless tires
IPC: B29C73/06
Filed: 1957-06-28
Abstract: 821,183. Plugging tubeless tyres. TRIPLESEAL CORPORATION. June 28, 1957, No. 20557/57. Class 144 (1). A tubeless tyre puncture 11 is repaired by a plug 12 of resilient rubber or plastic material and comprising a domed head 14 with a flat undersurface 15 from which extends a shank 16 of uniform diameter having a reduced diameter extension 31 at its free end, the plug being inserted in the puncture 11 from inside the tyre by means of a tool 13 comprising a length of spring wire bent at 30 to engage the plug shank 16 and having its ends 25 twisted together to form a handle, said handle being separated from the bent end 30 by opposed shoulders 23 defining a larger opening than the end 30. To facilitate insertion the plug shank 16, 31 and the puncture 11 have a lubricant applied thereto which also facilitates disengagement of the tool 13 from the shank 16 on complete insertion of the plug. The protruding end of the plug 16 is severed proud of the tyre surface, Fig. 5, to leave a stud end. The tool 13 is formed as shown in Figs. 8 and 9 with two opposed shoulder portions 23 which adjoin the twisted ends 25 and define a larger opening than that of the shank engaging end 30, the latter being defined either by opposed shoulders 22, Fig. 8, or by an arcuate loop 24, Fig. 9. In operation, Fig. 3, the shoulders 23 are compressed together on passage through the puncture 11, thereby tightening the grip on the plug shank 16 and avoiding any enlargement of the puncture 11.
Patent GB-871003-A (GB)
Title: Improvements in or relating to the moulding of articles from foils
IPC: B29C51/06
Filed: 1957-07-01
Abstract: 871,003. Moulding hollow articles. HYDROCHEMIE A.G. July 1, 1957 [June 30, 1956], No. 20660/57. Class 87(2). A method of moulding a hollow article from a thermoplastic foil 3 comprises mounting the foil 3 over a chamber 8 containing a convex mould 10, causing relative movement between the chamber 8 and mould 10 so that the mould 10 and foil 3 are approached towards each other and the foil 3 becomes outwardly domed by the compression of air between it and the mould and the mould contacts the foil and then contacting the foil fully on to the mould by a differential air pressure opposed to that which has caused its doming. The doming of the foil may be controlled by a slide valve 20 which releases the air pressure and the final differential pressure may be a vacuum applied through the mould. Reference has been directed by the Comptroller to Specification 808,389.
Patent GB-456512-A (GB)
Title: Improvements in cyclone apparatus for separating solid particles from gases
IPC: B04C5/30
Filed: 1935-11-11
Abstract: 456,512. Centrifugal gas cleaners. BIETH, T. C., 25, Landsgatan, Hedemora, Sweden. Nov. 11, 1935, No.20680/36. Divided out of 455,882. [Class 23] A cyclone separator in which the separated dust passes to the collector 10 through a slot in the separator wall, has another slot 21 in the wall through which gas is drawn from the collector to reduce the pressure in it thereby aiding the collection of the dust. The apparatus shown in Figs. 1, 2 consists of a drum part 1 with an entry chamber 3 and a conical separating chamber 2 with a uniform slot 19 or a divergent slot 20 in its wall for the passage of the separated dust. One edge of the slot may overlap the other. A pipe 17 conducts gas from the top of the dust collector 10 to the end of the separating chamber 2 to lower the pressure in the collector 10. This action is assisted by the passage of gas through the slot 21 in the wall of the drum 1, caused by the suction effect of the whirling gas. The slot may be provided in the end plate of the separator and a pipe 41 then connects the slot to the collector 10. The upper part of the pipe 41 may be in the form of a flanged box. The pipe 17 may proceed in a spiral at its upper end where it joins the separating chamber 2, and terminates with an opening 35, Fig. 7, at the centre of the spiral, or at a part 36 directed in the direction of gas rotation in the chamber. Specification 455,882 is referred to.
Patent GB-832396-A (GB)
Title: Method of making compound sliding bearings
IPC: F16C33/14
Filed: 1957-07-01
Abstract: In the production of a sliding bearing, a backing of steel or steel covered with another metal, e.g. copper or copper alloy, is successively electroplated with a lead-copper binary alloy containing 0.5 to 15% copper and with indium which is then diffused into the lead-copper layer by heating.  The indium content of the diffusion alloy layer may be from 1 to 15%. Typically the lead-copper alloy contains 2 to 6, e.g. 3% copper and the ternary alloy contains 5% indium.
Patent GB-683275-A (GB)
Title: Vacuum pumping apparatus
IPC: F04F9/00
Filed: 1951-09-03
Abstract: 683,275. Condensation pumps. EASTMAN KODAK CO. Sept. 3, 1951 [Sept. 1, 1950], No. 20695/51. Class 71. High vacuum pumping apparatus comprises paired diffuser and ejector elements 10, 11 respectively through which are passed organic fluid vapour supplied through a main conduit 16 from a boiler 13, the vapour being then condensed by a cooling coil 12, and condensate is returned to the boiler through downwardly directed diffuser tube 17 having a vapour-carrying conduit 22 extending between an upper region thereof and the main conduit. The conduit 22 has a nozzle end 21. The diffuser is connected at 23 to the space to be evacuated and at 24 to a backing pump. The boiler is heated by an electrical immersion heater 14. A manometer 27 is fitted. The boiler and vapour conduits are lagged.
Patent GB-772966-A (GB)
Title: Preparation of 2,4,5-trichlorophenoxyacetic acid
Inventor: ORWOLL EDWARD FRANCIS
IPC: C07C59/70
Filed: 1955-07-18
Abstract: The invention comprises a method of obtaining 2 : 4 : 5 - trichlorophenoxyacetic acid in two stages, by heating 2 : 5-dichlorophenol and monochloracetic acid in presence of caustic alkali to give the sodium salt of 2 : 5-dichlorophenoxyacetic acid and treating this with a molar quantity of chlorine passed through its aqueous suspension.  In an example, sodium 2 : 5-dichlorophenoxyacetate is treated with the required quantity of chlorine in aqueous solution.
Patent GB-1092919-A (GB)
Title: Improvements in or relating to methods of analysing gas streams by gas chromatography
Inventor: GRAY PAUL SHAPTER
IPC: G01N1/40
Filed: 1965-05-17
Abstract: 1,092,919. G.C. analysis of gas streams. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 6, 1966 [May 17, 1965], No. 20722/65. Heading B1L. In a gas chromatographic apparatus, in which the gas stream passes from the reference cell of the detector to the chromatographic column and hence to the other cell of the detector, impurities in the gas stream are concentrated out and then released as a plug in the stream for analysis. In the Figure, helium gas from pipe 1 passes through flow controller 2 to column 4 where CO 2  is frozen out by a liquid N 2  bath 4a which is boiling at atmospheric pressure. The stream then passes to column 5 which contains a bed of silica gel to adsorb impurities from the gas, and is immersed in a Dewar 5a or liquid N 2 . The stream then passes via reference side 6a of katharometer 6 to column 7, measurement side 6b and flow controller 8. Columns 4, 5, and 7 have heaters so that they may be heated as required. In operation, flask 5a is removed and column 5 heated to release the impurities therein which are carried through the column and katharometer for analysis and the system compensates for trace impurities present. Flask 4a is then removed, and column 4 likewise heated, so that the CO 2  produces a negative peak on the katharometer output before adsorption on column 7, whence it may be desorbed by heating.
Patent GB-1134344-A (GB)
Title: The preparation of maleamic acid derivatives
Inventor: KALOPISSIS GREFOIRE
IPC: C07D295/13
Filed: 1966-05-10
Abstract: 1,134,344. Maleamic acids. L'OREAL. 10 May, 1966 [15 June, 1965], No. 20731/66. Heading C2C. Maleamic acid derivatives of the formula wherein n is an integer from 2-5 and each of R 1  and R 2  represents a C 1-4  alkyl group or R 1  and R 2  together form a saturated heterocyclic ring with the N atom, are prepared by reacting maleic anhydride with an amine of the formula in the presence of a non-aromatic polar solvent to obtain the maleamic acid derivative either in solution or as a crystalline precipitate, provided that when the solvent is water or an alkanol the reaction is effected at below 30‹ C. Specified solvents are water, methanol, ethanol, tbutanol and ethyl acetate; a crystalline product is obtained in the two latter solvents. Examples relate to the preparation of N- (N<SP>1</SP>,N<SP>1</SP> - diethylaminopropyl)maleamic acid, N - (morpholinobutyl) - maleamic acid, N- (N<SP>1</SP>,N<SP>1</SP> - diethylaminopentyl) - maleamio acid and N - (piperidinopropyl) - maleamic acid.
Patent GB-148961-A (GB)
Title: Improvements in or relating to upright incandescent gas lamps
IPC: F21V17/00
Filed: 1920-07-10
Abstract: 148,961. Westfõlische Gasgl³hlicht- Fabrik F. W., & Dr. C. Killing. Oct. 17, 1917, [Convention date]. Reflectors; reflector-holders. - In an upright incandescent g a s lamp, a clear glass reflecting cone a is supported by a bulge b on the lower half of the clear glass lamp chimney c in such a position that the upper edge of the cone is not more than 6 cm. from the upper end of the burner d, and the lower edge of the cone is well below the bottom of the chimney. The cone reflects the downwardly directed rays so as to bring them near the vertical, while the upwardly directed rays pass through the cone and illuminate the space above the lamp.
Patent GB-581110-A (GB)
Title: Improvements in and relating to adjustable pitch rotary fans, axial flow pumps, screw propellers and the like
IPC: F04D29/36
Filed: 1944-10-26
Abstract: 581,110. Screw fans and pumps. BRANDT, P., and THERMALAIR, Ltd. Oct. 26, 1944, No. 20903. [Class 110 (i)] [Also in Group XXXIII] A screw fan or pump rotor has blades c attached to screwed studs g passing through radial holes in the annular flange a of the boss, this securing allowing the blade pitch to be adjusted. The boss has an external annular groove b to shroud the root parts of the blades and also has attached a dome or spinner l. A second spinner may be attached to the shaft side of the boss.
Patent GB-614462-A (GB)
Title: Improvements in and relating to fluorescent electric discharge lamps
IPC: H01J61/20
Filed: 1946-07-12
Abstract: 614,462. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. July 12, 1946, No. 20925. Convention date, April 21, 1945. Drawings to Specification. [Class 39 (i)] Blackening is prevented, in a discharge lamp having a coating of fluorescent material on the inner wall of the envelope and a filling of mercury vapour and argon, by adding nitrogen to the argon during the gas-filling process in the proportion of 0.6 to 1.1 per cent of nitrogen to 99.4 to 98.9 per cent of argon. During seasoning of the lamp in the factory the nitrogen cleans up and no nitrogen gas is present in the discharge space during ordinary operation after seasoning. The lamp is of the lowpressure, long-gap, positive column type with a diffuse discharge. 0.4 or 1.5 per cent of nitrogen is stated to lower the light output. The argon-nitrogen mixture is at a pressure of 2-6 mms., preferably 3.5 mms., and the mercury vapour is at 10 microns pressure. The lamp emits some ultra-violet light. The device may be hot or cold starting and may operate on D.C. or A.C. The cathodes may be coiled or coiled coil tungsten filaments coated or charged with alkaline earth oxides, e.g. a mixture of barium and strontium oxides, or as described in Specification 569,685. The Specification as open under Sect. 91 states that the percentage of nitrogen may be adjusted inversely as the tube diameter and inversely with the pressure, and refers broadly to rare gas as well as specifically to argon and to vaporizable and ionizable metal as well as specifically to mercury. This subject-matter does not appear in the Specification as accepted.
Patent GB-841867-A (GB)
Title: Method of surfacing floors
Inventor: ADDIE GEORGE DAVIDSON
IPC: E04F15/16
Filed: 1955-07-20
Abstract: 841,867. Deck surfaces. ROWAN &BODEN Ltd. July 16, 1956 [July 20, 1955], No. 20976/55. Class 113. A method of surfacing a deck comprises adhering thereto at least one layer of heat and/or sound insulating material having a non-labyrinthal cellular structure and consisting of polyvinylchloride, polyurethane, polystyrene or other synthetic resin in expanded foam form, and providing a top covering over the latter. Fig. 1 shows a non-weather deck 5 with insulating material 6 and a conventional top covering 7, of linoleum, rubber or neoprene or plastic or cork tiles or a composite mixture of a paste, powder and filler. In Fig. 2, a weather deck 8, primed with a fluid mix, has an underlay 9 of paste, powder and filler, insulating material 10, a composite mixture 11 of paste, powder and filler reinforced by a wire network 12, a screed or screed over the surface of the mixture 11, and a coating 13 of sealing compound.
Patent GB-574892-A (GB)
Title: Process and apparatus for the conversion of fluid reactants
IPC: B01J8/28
Filed: 1943-12-15
Abstract: <PICT:0574892/IV/1> In a process for the conversion of fluid reactants during their upward flow through a vertically elongated fluidized bed of subdivided solid contact material in a reaction zone, the improvement which comprises subdividing the fluidized bed of solid particles into a plurality of superimposed sections between a plurality of substantially horizontal perforated distributing plates, extending over the entire cross-sectional area of the reaction zone and vertically spaced along the major portion of the height of the bed.  The process is applicable to catalytic hydrogen conversion reactions such as hydrogenation, dehydrogenation, cyclization, hydro-reforming, and dehydrocyclization.  By means of the redistributing plates, channelling is reduced and uniformity of contact is increased so that it is possible to increase the conversion at a given space velocity or use higher space velocities at a given conversion level.  In the Figure, liquid or vaporous hydrocarbons are supplied through line 4, commingled with hot regenerated catalyst particles (from regenerator 22) in line 6, and the suspension passed into reactor 7 through the distributing grid 11.  A fluidized catalyst bed is maintained in the reactor and this is divided into several sections by means of perforated plates 12 which are located at substantially equally-spaced distances intermediate the upper and lower ends of the bed; the perforations being sufficiently large to permit flow of catalyst particles from one section to the next.  Contaminated catalyst passes downwardly through standpipe 17 and is admitted through valve 18 into transfer line 19 where it meets a stream of air or other oxidizing gas which transports the particles into the regenerator 22.  In a modification, provision is made for withdrawing catalyst for regeneration from any one or all of the separate sections of the dense phase fluidized bed in the reactor.  A process is also described wherein the flow of catalyst particles through the reactor is downward counter-current to the ascending stream of reactants, i.e. catalyst is supplied from the regenerator to the upper portion of the reactor.  In an example, the dehydrogenation of normal butane using an alumina catalyst containing 2 per cent MgO and 12 per cent Cr2O3 is described.
Patent GB-1351801-A (GB)
Title: Devices for separating precipitation and/or floatation components from a liquid
Inventor: PIELKENROOD J
IPC: B01D21/00
Filed: 1971-04-19
Abstract: 1351801 Separating particles from liquids PIELKENROOD-VINITEX NV 19 April 1971 [6 Feb 1970 27 March 1970] 21097/71 Heading BID Apparatus for separating particles from a liquid comprises an assembly of inclined parallel plates 2, which have corrugations 3 or are otherwise formed with sloping channels, and the liquid is passed from a supply chamber in the direction of the arrow 4 through the plates to a discharge chamber. The arrangement is such that the liquid passes at an angle to the channels but is not deflected by the plates, the particles separating by gravitional action alone, particles denser than the liquid moving downwardly along the channels into a collecting duct 7, and lighter particles moving upwardly into a chamber 9 and over an adjustable wier 10 into a duct 11. As shown in Fig. 2, the liquid first moves past corrugations 3 with downwardly arranged troughs to separate out the denser particles, and then past corrugations 3' with inverted troughs to separate out the lighter particles. Between the two sets of corrugations, the plates 2 are smooth and into this region, a flocculation agent and/or air may be introduced (or, if the sequence of corrugations is reversed, a sedimentation agent). Partitions 13, 14 may be arranged in the duct 7 and chamber 9, and may be associated with a series of collecting chambers when it is desirable that the particles should be classified. The plates 2 may be arranged approximately radially around an axis and over a conical collecting basin, Fig. 6 (not shown). A number of assemblies of plates 2 may be associated together and these may all slope in the same direction, Fig. 9 (not shown), or they may slope in different directions alternately, adjacent plates being joined to form ridges 5' as shown in Fig. 10. Moreover, the plates 2 may widen in the direction of liquid flow 4 as shown in Fig. 11. Partitions 13' may be provided along the collecting ducts, which partitions may be straight, as shown in lefthand part of Fig. 11, or V-shaped as shown in the righthand part of that figure. Where plates are joined to form ridges 5' (or troughs), openings may be provided along them, and there may be covered by inverted troughs 28, Fig. 15. The plates 2 may be formed by pieces 29, Fig. 17, punched out from partition sheets 13' and formed with corrugations or the like (not shown). The spacing of the corrugations or the like may vary in the direction of flow of the liquid.
Patent GB-267001-A (GB)
Title: Method of making hollow bodies such as pipes composed of plastic or cementitious material
IPC: B29C33/60
Filed: 1925-12-01
Abstract: 267,001. Nichols, C. R. Dec. 1, 1925. Centrifugal machines; moulding pipes and tubes.-In the centrifugal moulding of hollow bodies such as pipes formed of cementitious material, in order to seal the concrete against absorption and loss of moisture and to render it resistant to earth acids and alkalies, the mould is lined with a fusible substance, such as paraffin or cornuba wax, and, after the body is moulded, steam or other heat-bearing medium is admitted to the mould under controlled conditions of temperature and pressure to melt the wax and cause it to impregnate the body. The mould 7 is lined with wax 49 and a pipe moulded therein preferably as described in Specifications 266,807, 267,000 and 267,003. The mould is then placed in a kiln and heated gradually by the introduction of steam or other heat-bearing medium. Alternatively, airtight bulk heads 47 may be attached to the mould and steam introduced. Water mixed with the steam or introduced independently may be used if it is required to add moisture. After hydration, more fused material is added to impregnate the pipe.
Patent GB-376960-A (GB)
Title: Stop valve
IPC: F16K31/524
Filed: 1931-07-24
Abstract: 376,960. Stop valves. SCHMITT, H., 63, Herbederstrasse, Witten, Ruhr, Germany. July 24, 1931, No. 21196. [Class 135.] Lift valves ; actuating- mechanism.-A camactuated stop valve for compressed air, steam, water, gas, and especially pneumatic tools comprises a cam in the form of a thick disc d which fits the cylindrical bore of the housing a and is flattened symmetrically on opposite sides so that the flattened part of the disc acts as a cam to lift the spring-closed valve h, p, when the lever o is rotated a quarter of a revolution. The spindle m carries two guide discs k which fit the bore of the housing, the spindle packing q being retained in a stuffing-box n against one of the discs k.
Patent GB-754287-A (GB)
Title: Improvements relating to operating means for a flight-control member
Inventor: ELLIOTT FREDERICK RALPH
IPC: B64C13/00
Filed: 1954-07-21
Abstract: 754,287. Linkwork. ARMSTRONG WHITWORTH AIRCRAFT. Ltd.. Sir W. G. March 17. 1955 [July 21, 1954]. No. 21224/54. Class 80(3) [Also in Group XXXIII] A transmission between the control member 9 and a controlled rod 18 is shown, the member 9 actuating a rod 15 pivoted to the lower end of a lever 12 secured to a shaft 27 rotatably mounted on a fixed support. Also pivoted to this end of the lever 12 is one end of a centralizing spring unit 24 pivoted at its other end to a lever 22, to which is pivoted a rod 23 jointed at its other end and to a lever 10 mounted co-axially with lever 12 and having quadrant teeth 14 formed at its upper end and meshing with a cog-wheel 13 mounted at the upper end of lever 12. This cog-wheel bears an eccentric pin 16 engaging a radial slot in one end of a third lever 17 pivoted at its other end to a rod 18 leading to a servomotor (not shown). Normally, the lever 10 is fixed, and when lever 12 is rocked by the control member 9, the pin 16 has an angular movement about the axis of lever 12, and a harmonic movement about the axis of the cog-wheel. Lever 17 thus has linear and non-linear components of motion. One end of lever 20 is movable by a trim actuator 19. This moves the spring unit 24, giving a new datum position for the control member 9. and also rocks lever 10 through rod 23. thus turning the cog-wheel and rocking lever 17, to move rod 18 relative to member 9. At the same time, the datum position of lever 12 at which the pin 16 is symmetrical relative to it is altered.
Patent GB-612703-A (GB)
Title: Improvements in and relating to rotative winged aircraft
IPC: B64C27/41
Filed: 1946-07-16
Abstract: 612,703. Helicopters. AUTOGIRO CO. OF AMERICA. July 16, 1946, No. 21251. Convention date, July 17. 1945. [Class 4] A rotary wing aircraft comprises a universallymounted rotor hub and a swash-plate for effecting cyclical pitch control of the blades so arranged that the azimuth of maximum blade pitch is approximately 45 degrees from that of downward hub tilt, measured in the direction opposite to that of the rotor rotation, and,the swash-plate is connected to a conventional control column so that the azimuth of column displacement is advanced approximately 45 degrees, in the direction of rotor rotation, from the azimuth of downward tilt of the swash-plate. In the form shown, the rotor hub 44 is mounted on a universal joint 40, and is driven from the engine shaft 31 through epicyclic gearing 33, 34, 36. The blades-46 are mounted on pitchchange pivots 50 carried on universal joints embodying the flap and drag pivots 52, 53. The universal joints are carried by stub shafts 45 projecting from the rotor hub. Cyclical pitch control of the rotor blades is effected by a swash-plate 68 with arms 70 connected by links 71 lying approximately in a vertical plane to pitch change arms 62, which subtend an angle of approximately 45 degrees at the rotor centre. The swash-plate is tilted by links 90 actuated by movement of the control column 112 through cables 98, 110, pulleys 99, threaded telescopic members 94, 95 and bell-cranks 91, 93. Collective pitch control is effected by vertical movement of a sleeve 63, connected to the swash-plate, through links 75, 77, operated by  a  control member 83 through cables 82, a pulley 81 and a telescopic-member 78, 79. Flapping and drag movements of the rotor blades are limited by stops 56, 57 and relative movements of the blades in the plane of rotation are controlled by telescopic dampers 60, 61. When the collective pitch control is moved to the non-lifting or zero pitch position, stops 87, Fig. 7, on a sleeve 84 rotatably mounted on the sleeve 63 engage flanges 88 on the blade mounting stubs 45, to lock the hub against tilting.