baber/WOPTO huggingface dataset:
Patent GB-877536-A (GB)
Title: Improvements in or relating to the manufacture of phosphors
Inventor: MCKEAG ALFRED HAMILTON
IPC: C09K11/73
Filed: 1957-05-01
Abstract: 877,536. Luminescent materials. GENERAL ELECTRIC CO. Ltd. March 4, 1958 [May 1, 1957], No. 13938/57. Divided out of 877,535. Class 39(1). A method of making a crystalline phosphor consisting of alkaline earth metal(s) halophosphate(s) activated by tin in the stannous state with or without copper in the cuprous state and with or without manganese, so as to be excitable by short or long wavelength U.V. radiation in low pressure or high pressure mercury vapour discharge lamps, cathode rays or X-rays, comprises mixing the halophosphate material, or a mixture of compounds which react to produce such material on heating, with a compound or compounds of tin with or without a compound or compounds of copper and with or without a compound of manganese, and heating the mixture in an applied weakly reducing atmosphere at a temperature or temperatures within the range of 700‹C. to 1250‹C. The proportion of tin or tin and copper, and of the manganese, is within the range of 0.001 to 5.0%, preferably 0.1 to 2.0%, by weight of the total weight of the phosphor, including the activator or activators, calculated from the starting materials used, The heating can be effected in at least two stages, the second and any subsequent heatings being preferably at a higher temperature than the first, and the material being ground between the heating steps. The applied weakly reducing atmosphere can be a mixture of nitrogen and hydrogen in a ratio within the range of 1000 N 2 :1 H 2  to 200 N 2 :1 H 2 , by volume, in the case of activation by tin and copper with or without manganese, or in a ratio within the range of 200 N 2 :1 H 2  to 100 N 2 :1 H 2 , by volume, in the case of activation by tin without copper and with or without manganese. Several specific examples are described. Specifications 580,363, 610,025 and 614,700 also are referred to.
Patent GB-714745-A (GB)
Title: Improvements in or relating to gas lifting of granular solids as a dense mass
IPC: B01J8/00
Filed: 1952-06-04
Abstract: <PICT:0714745/III/1> <PICT:0714745/III/2> <PICT:0714745/III/3> A method for chemically converting hydrocarbon materials comprises gravitating a mixture of granular solids consisting mainly of coarse particles, e.g. granular catalysts such as silica-alumina cracking catalyst and granular inert refractory heat-transfer materials used in non-catalytic hydrocarbon conversion processes, through a hydrocarbon conversion zone, contacting the mixture with hydrocarbon materials under conversion conditions, removing hydrocarbon products from the conversion zone, removing granular solids having carbonaceous materials deposited thereon from the conversion zone, introducing the granular solids thus removed into a regeneration zone, burning carbonaceous materials from the granular solids in the regeneration zone, supplying the granular solids as a compact mass to a lower inlet of an elongated confined lifting zone containing a dense mass of such granular solids, flowing lifting gas under elevated pressure through the compact mass to the inlet and through the lifting zone at a rate adapted to maintain the solids in dense form and move them upwards and gravitating the granular solids, after elevation through the lifting zone, into the hydrocarbon conversion zone to convert additional hydrocarbon material.  The apparatus used for carrying out the method comprises a chamber 16, Fig. 1, a lift conduit 18, the lower end of which is connected by a bend 31 to a short vertical or inclined inlet 32, an inlet 33 for the material and a gas inlet pipe 30 which opens into an annular inverted channel 35. The conduit 18 delivers the material to a disengaging vessel 19 from which it passes through pipe 21 to a catalytic cracking reactor 10, and thence by a pipe 22 to a catalytic cracking regenerator 11.  This latter vessel communicates by pipes 23, 24 provided with valves 25, 26 with pressuring vessels 12, 13 which are connected to the chamber 16 by pipes 14, 15 controlled by valves 28, 29.  The upper end of the conduit 18, Fig. 4, is surrounded by a sleeve 40 which communicates with the atmosphere, or with a vacuum by a pipe 43.  Holes 47 in the conduit permit passage of some of the lifting gas to atmosphere, the rate of withdrawal of the gas being controlled by a valve 48.  A vertically adjustable inverted conical baffle 44 depends into the top of the conduit.  In a modification the lower end of the pipe 18, Fig. 3, is straight and depends into a cup 36 which is raised and lowered by moving its support 37.  The walls 39 of the cup may be omitted.
Patent GB-252893-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors of the swash plate type
IPC: F01B3/00
Filed: 1925-05-28
Abstract: 252,893. Vickers, Ltd., Variable Speed Gear, Ltd., and Ingoldby, M. K. May 28, 1925. Revolving - cylinder pumps; relief devices. -The valve plate L of a swash-plate hydraulic pump is provided with relief valves M, M<1> arranged to relieve excess pressure from one to the other of the valve ports l, l'.
Patent GB-559320-A (GB)
Title: Improvements relating to surfacing concrete floors
IPC: E04F15/12
Filed: 1942-10-08
Abstract: 559,320. Floors. STENT PRECAST CONCRETE, Ltd., and STENT, D. H. Oct. 8, 1942, No. 14147. [Class 20 (iv)] A layer c of insulating concrete is secured to an underlayer of dense concrete a by wire coils b or by doubleheaded nails which have their lower parts embedded in the dense concrete before setting and their upper parts embedded by the insulating concrete.
Patent GB-168366-A (GB)
Title: Improvements in apparatus for the supply of additional air to internal combustion engines
IPC: F02D9/00
Filed: 1920-05-25
Abstract: 168,366. Pratt, E. F., and Hill, S. H. May 25, 1920. Closure Members, doublebeat.-A valve for admitting additional air to the induction pipe, carburettor, &c. of an internal-combustion engine comprises a conical valve 1 slidably mounted in a casing 2 having a fixed seating, the valve being actuated from a distance by Bowden wire or like tension mechanism 6 and having sliding guide members 3, 8 and a tapered part 10 to control the area of the path through the valve. In the form shown, the tapered part 10 is formed by tapering flats on the cylindrical guide member 8. Airadmission ports 7 may be controlled by relative rotation of the two parts of the casing.
Patent GB-935804-A (GB)
Title: Improvements in water coolers
IPC: F25B9/04
Filed: 1962-04-12
Abstract: 935,804. Refrigerating. CLEVELAND TECHNICAL CENTER Inc. April 12, 1962 [April 14, 1961; Dec. 28, 1961], No. 14222/62. Class 29. In a water cooler comprising a water tank 21 surrounded by a cooling coil 20 the latter is supplied with air from the cold air outlet of a vortex tube 30, (Fig. 2). Air supplied through a tube 11 from a compressor, e.g. of a diesel locomotive, is precooled in a heat-exchanger 12 by air from the outlet of the coil 20 and supplied to the vortex tube through a valve 13 controlled by a thermally-responsive bulb 14 adjacent the coil 20. The peripheral hot air outlet 42 of the vortex tube is controlled by means of an adjustable throttle valve 17 and the axial cold air outlet 18 is divergent in form so that cold air from the vortex tube is expanded and further cooled before passing to the coil 20. Exhaust air from the heat-exchanger 12 is supplied to a jacket 29 surrounding the vortex tube 30 to cool the latter.
Patent GB-250785-A (GB)
Title: Manufacture of dyestuffs of the triphenylmethane series
IPC: C09B11/14
Filed: 1925-05-29
Abstract: 250,785. Bloxam, A. G., (Chemische Fabrik Griesheim-Elektron). May 29, 1925. Triphenylmethane dyes, dyeing wool in greenish-blue shades, fast to alkali, are obtained by condensing one molecule of o-sulphobenzaldehyde with two molecules of the same or different alkylbenzylarylamines, substituted in the benzyl nucleus by halogen and sulpho-groups, and oxidizing the condensation product. The following alkylbenzylarylamines, in which sulpho-groups are introduced by sulphonation, are specified : o, m and p-chlorbenzylethylaniline, 2 : 4- and 2 : 6-dichlorbenzylethylaniline, and the corresponding bromine derivatives and derivatives of benzylmethylaniline. Examples are given of the preparation of the dyestuffs from the sulphonic acids of o-chlorbenzylethylaniline and 2 : 6-dichlorbenzylethylaniline. Halogenbenzylethylanilines, which may be sulphonated, for making the above dyestuffs, are obtained by treating the corresponding halogenbenzyl chlorides with monoethylaniline. Halogenbenzyl chlorides. - m-Chlorbenzyl chloride and the 2: 4- and 2 : 6-dichlor- and dibrom-benzyl chlorides are obtained by chlorinating m-chlortoluene and the 2 : 4- and 2 : 6-dichlor- and dibrom-toluenes in the side chain.
Patent GB-220734-A (GB)
Title: Improvements in furnace grates
IPC: F23H17/00
Filed: 1923-05-31
Abstract: 220,734. Bennis, A. W. May 31, 1923. Grates.-A longitudinal seal for the moving links of a chain grate stoker comprises a sealing- bar 4, Fig. 1, having two or more flanges, one of which makes contact with the links 2 while another, 5, is adjustably secured by a bolt 6 to the flange 9 of the frame 10, access to the bolt being readily obtained through an opening in the frame. In cases where the frame is not provided with a flange 9, the sealing-bar may be provided with a depending flange 5, Fig. 2, adapted to be secured to the top 16 of the grate frame, adjustment being effected by the use of packing pieces 21. In a further modification shown in Fig. 3, the sealing-bar 4 is adjustably connected to the depending web 23 of the running plate 22 by the bolt 6 and packing pieces 21. Various other modifications are described in which the sealing-bar is also provided with means for effecting a seal between the furnace wall and the grate, comprising flanges dipping into sand seals and flexible non-combustible packing strips attached to the sealing-bar and making contact with the furnace wall.
Patent GB-1085241-A (GB)
Title: Improvements in and relating to electrostatic powder spray guns
Inventor: WEBB JOHN
IPC: B05B5/03
Filed: 1964-04-08
Abstract: 1,085,241. Spray-producers. AEROSTYLE Ltd. April 8, 1965 [April 8, 1964], No. 14500/ 64. Heading B2F. In an electrostatic powder spray gun having a duct 20 for delivering powder entrained by air or carbon dioxide to a discharge orifice 18 and having means for electrostatically charging the powder thus delivered, a fluted outwardly flared plug member 32 is located within the duct substantially nullifying the forward velocity of the air and powder in the immediate vicinity of the orifice.
Patent GB-1124546-A (GB)
Title: Improvements in or relating to process and apparatus for the low-temperature fractionation of gas mixtures
Inventor: BECKER RUDOLF
IPC: F25J5/00
Filed: 1967-03-30
Abstract: 1,124,546. Cold separation of gas mixtures. LINDE A.G. 30 March, 1967 [31 March, 1966], No. 14519/67. Heading F4P. In a gas mixture, e.g. air rectification process wherein feed air issuing from a compressor 1 is freed of high-boiling impurities, e.g. carbon dioxide by condensation in reversible heat exchangers 2, 3 and 4, 5 or alternating regenerators cooled by cold product gas returned by a column 15, a portion of partly purified feed air is tapped at 6 from the on-stream exchanger 4 and is further cooled in the shell space of a heat exchanger 8 of the non-reversing tube type by heat exchange with a minor portion of cold purified air having left the cold end of onstream exchangers 2, 4, and traversing the tubes 10 of exchanger 8, and the shell space is periodically purged of condensed carbon dioxide by interrupting flow of cold air through tubes 10 whilst maintaining flow of the tappedoff air stream until the condensate is evaporated and discharged into the atmosphere through a valved line 19. During normal operation the cold air leaving tubes 10 at 12 is mixed with air leaving the shell space in a chamber 11 and is added to the major portion of cold purified air in a line 9, expanded in a turbine 14 and fed to the column 15, reboil for which is obtained by diverting some of said major air portion prior to expansion of 14 and passing it through a boiling coil at the base of the column. A duplicate heat exchanger 8 may be provided to maintain continuity of rectification.
Patent GB-496486-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P7/26
Filed: 1937-05-25
Abstract: 496,486. Control of D.C. motors ; converting. BRITISH THOMSON-HOUSTON CO., Ltd. May 25, 1937, No. 14550. Convention date, May 25, 1936. [Class 38 (iii)] [Also in Group XXXV] Field control ; regenerative braking.-A motor is fed from an alternating current source through an electric discharge device provided with two sets of anodes, one set 5 being connected to the motor armature 9 and grid-controlled for rectifier or inverter operation at variable voltage, and the other set 6 being permanently connected to a potentiometer 11 having a fixed tapping 12 and a variable tapping 13 from which the motor field 10 is variably excited in one direction or the other according to the setting of the grid control for rectifier or inverter operation. A common operating lever is provided for the grid regulator 16 and the potentiometer tapping 13, and upon operation of this lever in one direction the motor is operated with maximum field and accelerated by grid control of the anodes 5. When full voltage is obtained further operation of the lever reduces the motor field. For braking the control lever is moved to the other side of its neutral position and the grid control prepares the anodes 5 for inverter operation. Then the motor field is reversed and gradually strengthened and the motor feeds back to the alternating current supply. After full reverse field is obtained, the grid control is effective further to brake the motor. The operation of the grid and field regulators by a common lever through cam or toothed gearing is described with reference to Figs. 4 and 5 (not shown).
Patent GB-128079-A (GB)
Title: Improved Water Heater for Hot Water Systems for Heating Rooms Buildings and the like.
Inventor: WATSON MICHAEL
IPC: F24H1/36
Filed: 1918-09-07
Abstract: 128,079. Watson, M. Sept. 7, 1918. Boilers.-In a water-heater of the type comprising a dome-shaped outer water chamber b communicating with an inner chamber a, a burner or fire d below, and out-flow and return-flow pipes m, n from a circulation system, the products of combustion are led over an annular flange k into a vent chamber f disposed at the base of the domeshaped chamber b. The vent chamber f is provided with a number of vents g of varying sizes, the smaller ones being near to the outlet h, and with a down-draught vent j.
Patent GB-277102-A (GB)
Title: Improvements in or relating to alternating current rectifying devices
IPC: H01L21/00
Filed: 1926-06-09
Abstract: 277,102. Ruben, S. June 9, 1926. Addition to 270,362. By solid unidirectional conducting devices. - Relates to dry surface contact rectifiers of the kind described in the parent Specification, and consists in using as the electropositive element a metallic amalgam body, preferably oxide-coated, co-operating with an electronegative body consisting of one or more oxides of metals. The electropositive elements 3 consist of aluminium amalgam bodies formed by immersing aluminium in mercuric chloride solution, and are provided with oxide coatings produced by an electrolytic process using, for example, a solution of sodium borate as electrolyte in conjunction with a cathode such as lead. The electronegative elements 2 may consist of cupric, cuprous, iron, vanadium and manganese oxides, and lead peroxide, and are formed by subjecting powdered oxide material to high pressure in a mould. The electrodes are assembled on a bolt N together with conducting elements 1, and are arranged as shown for utilizing both half waves of the alternating current from a transformer T for charging a battery B, for example. The device may be used in conjunction with smoothing arrangements for producing substantially steady D.C., and may be immersed in oil to avoid exposure to thermal and moisture conditions,
Patent GB-116998-A (GB)
Title: An Improvement in or connected with Flexible Expanding Moulds or Shapes for use in Making Cheezes, Butter, Ointments, Fats, Cakes, Pastry and the like.
Inventor: LAWTON WILLIAM ARTHUR
IPC: A01J21/00
Filed: 1917-10-10
Abstract: 116,998. Lawton, W. A. Oct. 10, 1917. Cutting - apparatus; moulds.-A mould or shape for use in shaping cheeses, butter, cakes, pastry, ointments. &c., comprises a flexible metal &c. strip A' adapted to be coiled into the desired form and provided with means for retaining it in such form. As shown, the retaining- means comprises clips D secured to the strip by rivetting &c., through which clips the end of the strip is passed. Oval &c. moulds are produced by means of an adjustable strap F in two parts connected by a bolt and nut G and connected to clips E. The strap F may serve as a handle. The moulds may be additionally secured by tapes.
Patent GB-247061-A (GB)
Title: Improvements in steerable trailers for vehicles
IPC: B62D13/00
Filed: 1925-06-05
Abstract: 247,061. Mattes, A. June 5, 1925. Relay or power apparatus-The turntable of a trailer is rotated for steering by power derived from the rotation of the road wheels or other running part. A screw shaft 1 rotates the turntable and is driven by chain gear 22, 20 from a shaft 6 carrying a toothed wheel always in mesh with pinions 15, 18 mounted on arms of a three-armed lever 17 pivoted on the shaft. The pinions 15, 18 can be made to gear respectively with external and internal teeth of a gear wheel 4 fixed to the axle or road wheel. Thus the shaft 6 and therefore the steering shaft 1 can be driven in opposite directions according to which of the pinions is in gear with the wheel 4. The lever 17 carrying the pinions is controlled by a cable 8 passing over pulleys to a convenient place either on the trailer or the tractor vehicle.
Patent GB-660328-A (GB)
Title: Improvements in or relating to current supply systems for electrical precipitators
IPC: B03C3/66
Filed: 1949-06-01
Abstract: 660,328. Supply systems for electrical precipitators; condenser arrangements. RESEARCH CORPORATION. June 1, 1949, No. 14690/49. Class 38 (iv). An electrostatic precipitator 11, 12 is energized over a rectifier 18 from an oscillatory circuit 15, 16, if desired through a step-up pulse transformer 17, the condenser 15 being charged over an inductor 13 from a current source 10 and discharged into the load by a rotary gap switch 14, which in the case of an A.C. current source is synchronized with the source. The precipitator may be shunted by a smoothing condenser. The rectifier may feed into a rotary clistributer 20, synchronized with the switch 14, whereby a number of precipitators may be cyclically energized. The positions of switch 14 and condenser 15 may be interchanged. To prevent surges in the precipitator from passing to the supply circuit a normally non-conducting rectifier in series with a resistor may shunt the primary winding of the pulse transformer.
Patent GB-612844-A (GB)
Title: Improvements in and relating to spring assemblies in or for seats, mattresses, cushions, seat backs and the like
IPC: A47C7/35
Filed: 1946-05-16
Abstract: 612,844. Mattresses &c. HALL, W. J. May 16, 1946. No. 14775 [Class 52 (iv)] In spring seats, mattresses and the like of the kind comprising separate aligned coiled extension springs the aligned springs are formed as a continuous tension spring 1 which is divided into separately acting aligned springs 2 and intervening dead or inestensible portions by a number of spaced clamp members 3 which may serve to support transverse resilient flat metal strips 11 and coiled compression springs 9. The clamp members 3 are formed with a semi-cylindrical seating 4, for the spring 1 and with limbs 5 which are compressed on the spring causing flanges 6 to interlock with the coils. Flanges 7 are provided which close in towards each other during the contraction of the clamps. If desired transverse coiled springs may replace the strips 11 and may be hooked to the clamps by means of apertured lugs 18. Instead of one continuous spring 1 separate aligned springs may be provided with their ends in contact and clamped by means of the members.
Patent GB-1434531-A (GB)
Title: Universal joints
IPC: F16D3/227
Filed: 1972-03-30
Abstract: 1434531 Making universal joints GKN TRANSMISSIONS Ltd 28 March 1973 [30 March 1972] 14972/72 Heading B3A [Also in Division F2] An outer member 14; in or for a universal joint 11, 12 comprising elements (e.g. balls 15) for transmitting rotation between an inner member 13 and a bore 22 of the outer member 14; comprises a main component 25 providing a side wall, secured to an initially separate element 26 of sheet metal, secured thereto (e.g. by welding 28), the element 26 having a spigot 27, 33 to centre in the bore of a tubular shaft 10, 44. This construction enables a single size mass produced grooved component 25 to be used with a range of sizes of shaft 10, 44. The joints 11, 12 may include seals 24, resilient buffers 30, and ball cages 20 with inner and outer part-spherical surfaces centred equidistant from the joint bisector plane. Reference has been directed by the Comptroller to Specification 1,097,149.
Patent GB-1336377-A (GB)
Title: Railway coupler shank
IPC: B61G7/10
Filed: 1971-05-14
Abstract: 1336377 Railway vehicle couplings AMSTED INDUSTRIES Inc 14 May 1971 [28 May 1970 2 Sept 1970] 15059/71 Heading B7T In a railway vehicle coupler, the shank 10 of the coupler is connected to straps 14, 16 of a yoke by a pin 12, the rear face of the pin hole in the shank being defined by a part cylindrical concave surface 26 having a radius equal to the pin radius, the surface 26 merging with side walls 28, 30 of the pin hole, each of said side walls, tapering towards the horizontal centre line X-X of the shank from above and below to accommodate rotational movement of the shank, the pin being spaced from the front surface of the pin hole to accommodate vertical angling of the shank, and the surface 26 being bevelled at the top and bottom. The surface 26 may be hexagonal with the top and bottom sides being shorter than the other sides or in a modification longer than the other sides. In the modification, Fig. 8, the surface 26 merges tangentially to convex surfaces 52, 54 formed on radii R, R<SP>1</SP>.
Patent GB-764909-A (GB)
Title: Improvements in gripping means for electric cables
IPC: H01R13/595
Filed: 1953-05-29
Abstract: 764,909. Two-part couplings. YOUNG, S. G. Aug. 30, 1954 [May 29, 1953], No. 15096/53. Class 38 (1). The cover 2 (Fig. 2, Provisional) of a plug has an annular lip 5 internally screw-threaded for engagement with the base 1 and inwardly of the lip there is provided an annular toothed projection 8 which bears on a cable 6 at its point of entry into the base so as to kink the cable into a recess 9 in the base to relieve strain on the terminals. Alternatively the cover may have a central internally threaded boss co-operating with a stud on the base, the lip 5 being omitted. Fig. 3 shows a modification of the first construction wherein the lip 5<SP>11</SP> and projection 8<SP>11</SP> are of equal depth and cause the cable to be kinked both into the recess 9<SP>11</SP> and into the recess 7<SP>11</SP> in the cover, projection 8<SP>11</SP> in this case not being toothed. The base 1<SP>11</SP> has a transverse bridge 13<SP>11</SP>, Fig. 4, formed with bores 14<SP>11</SP> for the leads which are trapped therein by and at the same time connected to the plug pins 15<SP>11</SP> which screw into the base. Fig. 6 shows a further modification wherein the base 21 and cover 22 are screw-threaded as in the previous embodiment but the cable 26 is gripped between a hollow portion 29 of the base and a central projection 28 on the cover guided between a pair of semi-circular members. 30 integral with the base. The peripheral screw-threads may be omitted and the projection 28 adapted to screw into the members 30 (Fig. 9, not shown). Alternatively the projection may be hollow and engage the exterior of members 30, Fig. 10 (not shown).