baber/WOPTO huggingface dataset:
Patent GB-818401-A (GB)
Title: Improvements in or relating to lighting fittings
Inventor: FERGUSON HAROLD MATTHEW
IPC: F21V5/00
Filed: 1955-08-25
Abstract: 818,401. Lighting fittings. GENERAL ELECTRIC CO. Ltd. Aug. 22, 1956 [Aug. 25, 1955], No. 24495/55. Class 75(2) A lighting fitting for street lighting, especially for tree-lined roads, comprises one or more electric lamps within a single housing and optical means arranged to concentrate the light from the lamps mainly into four different directions each inclined at an angle between 65 degrees and 85 degrees to the vertical and each lying in one of four quadrants formed by two mutually perpendicular planes through the vertical axis and each having its orthogonal projection on a horizontal plane at an angle of less than 40 degrees to one of these planes. In the form shown in Fig. 1, the vertical deviation is produced by a dome 6 having annular prisms 7 and mounted around the lamp 5 and the horizontal deviations are produced by vertical prisms 10 in four similar sets in different quadrants on the interior of a bowl 1 surrounding the lamp. Alternatively the dome may be omitted and the annular prisms be arranged on the outer surface of the bowl. A typical distribution of vertical prisms for use with a light source having a diffusing envelope is shown in Fig. 7, in which the directions OP1, OP2 of the maximum light distribution are inclined at about 25 degrees to the plane or containing the vertical axis. The angles between the directions of maximum light distribution and the plane or need not be equal. In a modification, the optical means may comprise within a single housing two back-toback parabolic reflectors each surrounding an electric lamp and provided with reflectors arranged across their mouths to spread the light into two principal planes.
Patent GB-1537339-A (GB)
Title: Fasteners for attachment to panels
IPC: F16B21/04
Filed: 1976-06-14
Abstract: 1537339 Stud fastening NIFCO INC 14 June 1976 [13 June 1975] 24512/76 Heading E2B A fastening for application to a non-circular aperture in a panel comprises a base portion 1 having a face for abutting one face of a panel b and provided with operating means 2 which serves to rotate the fastener and preferably to hold an elongate object a; a locating portion 3 of non-circular outline projecting from the base portion and being chamfered at 4 towards the base portion at the extremities of its outline which matches that of aperture c; and an anchor member 5 projecting from the locating portion 3 and having a largest dimension substantially equal to the largest dimension of the outline of the locating portion, these largest dimensions being angularly offset from each other. The fastening is attached to a panel by inserting the anchor member 5 into the aperture c in the direction of the diagonal line until the sloping surfaces 4 of the locating portion abut the panel b, the fastening is then turned through 45 when the locating portion 3 rests snugly in the aperture. The fastening is suitably made of plastics material to provide resilience. Other configurations of locating portion and anchor members are described (not shown).
Patent GB-206628-A (GB)
Title: Improvements in or relating to electrical plug and socket connectors
IPC: H01R13/15
Filed: 1922-09-11
Abstract: 206,628. Bramall, E. E. Sept. 11, 1922. Two-part couplings.- Springs 4, Fig. 1, rivetted to a socket 1 and located in slots 3 therein, project into the circular, square, oval, &c. bore 2 thereof so as to ensure rubbing contact with a plug when such is inserted., The socket may be enclosed in a casing 7, Fig. 9, in which case the springs need not by rivetted thereto.
Patent GB-585073-A (GB)
Title: Improvements relating to the manufacture of xylene-styrene condensation product
IPC: C07C2/70
Filed: 1944-12-07
Abstract: Xylene-styrene condensation products may be used as a solvent and/or plasticizer for rosins, resinates and most synthetic varnish resins.ALSO:Crude xylene-styrenes are prepared by reacting a mixture of hydrocarbons consisting mainly of ortho- and/or meta- and/or para-xylene and up to 50 per cent (based on the total weight of the mixture) of styrene, the mixture being water-white and substantially free from tar acids, tar bases, coumarone and indene and having a flask distillation range of 135-160 DEG  C., with sulphuric acid of strength 85-98 per cent in an amount not exceeding 10 per cent (based on the weight of hydrocarbons present) but sufficient to ensure complete removal of monomeric styrene, at a temperature not above 60 DEG  C.  The acid is removed and the reaction product neutralized and distilled to remove unchanged xylene.  The crude product may be further purified by distillation to remove the xylene-styrene and leave a residue of polymerized styrene.  These distillations may be carried out under atmospheric pressure, or subatmospheric pressure, or steam distillations, at a temperature below 320 DEG  C.  In the examples, a mixture of xylene and styrene is treated with sulphuric acid and the excess xylene removed by steam distillation.  Further examples illustrate the purification of the crude product by distillation under atmospheric pressure alone and in the presence of caustic soda.  The product of the invention may be used as a solvent and/or plasticiser for aromatic hydrocarbons, petroleum hydrocarbons, chlorinated hydrocarbons, esters, ethers, ketones, butyl and higher alcohols, drying and nondrying vegetable oils, coumarone-indene resins, high and low polymer styrene resins, ester gums, rosins, resinates and most synthetic varnish resins.
Patent GB-759165-A (GB)
Title: Antenna feed system
IPC: H01Q21/10
Filed: 1953-09-04
Abstract: 759,165. Aerials. STANDARD TELEPHONES & CABLES, Ltd. Sept. 4, 1953 [Oct. 8, 1952], No. 24539/53. Class 40 (7). A linear aerial array in which all the elements are of equal impedance and are fed in phase with equal amounts of energy is provided with a coaxial line-feed system in which power is fed to sub-feeders through gaps in the outer conductor of the main feeder. In the embodiment shown in Fig. 3 the array consists of 8 bi-conical dipole radiating elements and the feed line is a coaxial line 7. The outer conductor 7a of the feed line is provided with a gap at the centre of the array and a co-axial sleeve 9 completes a path for energy passing through the gap to point 32 at the centre of the lower half of the array where the sleeve is itself gapped and a further sleeve 36 provides a path for the energy passing through this gap. Sleeve 36 leads to a gap at 30 from which energy either passes down sleeve 37 to energize dipole unit 18 or onwards to energize unit 17. The energy passing onward at point 32 is likewise divided at 34 and feeds units 19 and 20. Energization of units 13 to 16 in the upper half of the array is achieved by gap junctions which split up the energy passing the gap at point 21 in the same way as the energy passing through it is split up to feed the lower part. The path lengths to all of the radiating elements from the source is the same so that they will all be fed in phase and as the elements are effectively in series the impedance looking into the array will be eight times that of a single element. There is described with reference to Fig. 5 (not shown) an impedance transforming system whereby' the impedance looking into the array is made the same as that of one of the elements.
Patent GB-239384-A (GB)
Title: A new or improved cleanser or detergent
IPC: C11D7/60
Filed: 1924-10-16
Abstract: Cleansing-compositions for personal use without added liquid or a towel comprise wax, an emulsfying agent other than gum tragacanth, and water, emulsified to a paste or cream.  There may be added a solvent such as methylated spirit inert to the wax, a perfume, and a preservative.  In an example 1 pound of paraffin wax, 1/2 pound of mucilage of gum acacia, 3 pounds of water, 0.25 per cent of formic acid or 0.04 per cent of thymol, and a trace of oil of lavender are emulsified together in a centrifugal machine.
Patent GB-519371-A (GB)
Title: Improvements in or relating to catalytic apparatus particularly for the conversion of hydrocarbons
IPC: B01J8/06
Filed: 1938-08-20
Abstract: 519,371. Catalytic apparatus. SOCONYVACUUM OIL CO., Inc. Aug. 20, 1938, No. 24600. Convention date, Sept. 1, 1937. [Class 1 (i)] Catalytic apparatus for reactions such as the conversion of hydrocarbons and regeneration of the catalyst in situ comprises a converter containing conduits for the circulation of a heat transfer medium, so arranged as to divide the catalyst space into long narrow passages which are in restricted lateral communication with one another and which are traversed longitudinally by the reaction material. The conduits are preferably provided with heatconducting fins which with the tubes themselves form the boundaries of the catalyst spaces. Figs. 1 and 2 show a converter in which the tubes 20 and fins 30 are arranged longitudinally in the container 13 and the reaction material also flows longitudinally from inlet 25 to outlet 26. In a modification, Fig. 8, the heat exchange tubes 42 are transversely disposed and their fins 43 are arranged to form catalyst spaces extending longitudinally. The Specification as open to inspection under Sect. 91 comprises also a modification in which the tubes are of elliptical section and contain the catalyst, while the heat exchange medium circulates around them. This modification does not occur in the Specification as accepted.
Patent GB-289800-A (GB)
Title: Improvements in apparatus for developing sensitised layers
IPC: G03D7/00
Filed: 1927-09-19
Abstract: 289,800. Stern, H. von. May 2, 1927, [Convention date]. Developing apparatus for the gaseous development of photographic prints comprises an endless conveyer sheet F passing over rollers G and in gas-tight contact with a plate C preferably arched, which is provided with holes band is arranged over a chamber A filled with developing gas. The prints are fed in at H and are carried by the sheet F over the perforated plate C, whereafter they are delivered at J down a guide 0 into a chamber R from which air is continuously exhausted in order to remove gas still adhering to the prints. The gas may be obtained by evaporation from liquid in a trough B, or may be introduced into the chamber A from a gas cylinder, and may be heated by a hot pipe passing through the chamber. A motor beneath the chamber R drives the rollers G and the exhaust pump V.
Patent GB-711977-A (GB)
Title: Pigmentation of viscose for spinning
IPC: D01D1/06
Filed: 1951-10-22
Abstract: Viscose for spinning is pigmented by intimately mixing with the viscose, immediately before spinning, a relatively concentrated dispersion of the pigment in a solution of an alkali-soluble water-insoluble polyhydric alcohol cellulose ether in a dilute aqueous solution of caustic soda.  The cellulose ether may be a glycol-cellulose or a propylene-glycol cellulose. In an example, 12.5 kgs. of titanium oxide pigment are thoroughly mixed with 100 litres of a solution of a glycol-cellulose in aqueous caustic soda, the solution containing 4 per cent. of cellulose ether (as cellulose) and 5 per cent. of caustic soda. A definite proportion of the resulting dispersion is injected by means of a metering pump into the viscose just before spinning. In other examples, dispersions of synthetic indigo and lamp-black respectively are similarly prepared. Indanthrenes and solanthrenes provide similar results.  The glycol-celluloses used in the examples are prepared with a proportion of ethylene oxide corresponding with 0.7-0.9 molecule of ethylene oxide per anhydroglucose unit of the cellulose.
Patent GB-702796-A (GB)
Title: Centrifugal clutch
IPC: F16D43/10
Filed: 1951-10-23
Abstract: 702,796. Friction clutches. KREIS, F., and SOC. ITALIANA BREVETTI AUTOMOBILISTICI AR.L. Oct. 23, 1951 [Oct. 23, 1950], No. 24722/51. Class 80 (2) In a centrifugal clutch comprising centrifugal weights 9 movable radially in a carrier 8 between clutch plates 10 co-operating with the sides of a drum 2, with pairs of balls 15 movable in oversize bores 11 in the weights and springs 13 acting on the balls through tapered plungers 14, the latter abut against each other by their end surfaces 20 when the clutch is disengaged, so as to free the balls 15 from the action of the springs 13. The side flanges 21 of the carrier 8 may be omitted, as shown at the left of Fig. 1, or may have apertures 22 as shown at the right of Fig. 1, to allow free movement of the balls 15. Specification 689,543 is referred to.
Patent GB-665099-A (GB)
Title: Improvements relating to regenerative heat exchangers
Inventor: COHEN HENRY
IPC: F28D19/04
Filed: 1947-09-09
Abstract: 665,099. Heat regenerators. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 20, 1948 [Sept. 9, 1947], No. 24776/47. Class 64(i) A rotary regenerator or like heat-exchanger comprises two rotating foraminated or cellular discs 19, 20 arranged with dividing and sealing plates 26, 27, 28 in a casing 10 so that the latter is divided into three chambers for each of the two fluid flow paths, one chamber for each-fluid being centrally situated between the two discs and the other two being situated each between a face of the disc and the adjacent end wall 17 or 18 of the casing, and the fluids flowing axially through the discs. The hot fluid flows from the central to the outer chambers, and the cold fluid in the opposite direction. The plates 26. 27, 28 are guided in slots 29. 30 in the casing and end walls, and may have carbon rollers 9. projecting slightly to maintain a slight clearance between the faces of the discs and plates. The plates 26, 28 are urged by springs 31, 32 towards the discs 19, 20. The Provisional Specification describes also a cellular disc comprising a corrugated metal strip and a flat metal strip placed in contact and rolled around a central boss in layers, a rim being placed around the outermost layer and connected to the central layer by spokes,
Patent GB-1271234-A (GB)
Title: Preparation of nitriles by reaction of carboxylic acids with ammonia
Filed: 1968-05-23
Abstract: 1,271,234. Chemical contact apparatus. N. WADDLETON (Messrs. Anderson, Luedeka, Fitch, Evern and Tabin). 8 April, 1969 [23 May, 1968], No. 24785/68. Heading B1F. [Also in Division C2] Apparatus for preparing nitriles by reaction of mixtures of carboxylic acids of varying boiling points with ammonia, comprises a liquid phase converter 2 which is supplied with carboxylic acids from tank 6 and ammonia from ammonia supply 5. On top of the converter 2 is a fractionating head 3, comprising a plate column 47 and a condenser 48, which fractionates the vapours from the reaction into a liquid phase comprising higher boiling carboxylic acids and nitriles which is refluxed back into the converter, and a vapour phase comprising ammonia, water and lower boiling acids and nitriles which goes to tubes 62 and 63 where it is reacted in the vapour phase with further ammonia from supply 5. The ammonia supply system is of conventional design and comprises a make-up tank 83, a fractionating means 82 and an absorber 80. The nitriles are recovered in storage tank 40.
Patent GB-1352166-A (GB)
Title: Gas removing device for a flowing liquid
IPC: B01D19/00
Filed: 1971-04-19
Abstract: 1352166 Cooling I.C. engines AUTOMOBILES  PEUGEOT and REGIE NATIONALE DES USINES RENAULT 19 April 1971 [8 April 1970] 24802/71 Heading F1B [Also in Division B2] In a cooling circuit of an I.C. engine, a separat ing device (see Division B2) for removing gases from the cooling water is placed on the outlet of the engine upstream of a thermostat valve which controls the flow of cooling water through the radiator. The gases discharged with a minor portion of the cooling water from the separating device are separated from the said minor portion in a feeder forming part of the cooling circuit and acting also as an expansion chamber for the cooling water.
Patent GB-1388422-A (GB)
Title: Fluid valve
Inventor: MONGERSON P A
IPC: F16L29/00
Filed: 1972-05-26
Abstract: 1388422 Valves STANADYNE Inc and A M MOEN 26 May 1972 [27 May 1971] 25106/72 Heading F2V A fluid valve, e.g. a rotary valve, comprises a valve member 20, Fig. 1, movable within a sleeve 16 enclosed in a housing 10. The valve includes a seal having at least one port seal portion 62 which extends through a sleeve port 30 and sealingly contacts the valve member, and a body portion 54 which is at least partly cylindrical about the valve member axis and is integral with the port seal portion. The body portion 54 defines an annular chamber 70 with the housing or sleeve, which chamber can be used for receiving the fluid which thereby exerts a force on seal in a direction urging the port seal portion towards the valve member, or for allowing the seal to distort when its port seal portion is otherwise urged by the fluid towards the valve member. The housing has inlets 34, 36 and an outlet 40. The seal shown comprises two identical semi-cylindrical elements 50, 52 each provided with fixing beads 58, an annular sealing bead 68 coaxial with portion 62, and a sealing bead 66 around the perimeter of the element. Another sealing bead may be located adjacent the sealing bead 66. All sealing beads may be omitted, Figs. 8 and 9 (not shown). In the two-way valve shown in Fig. 10, the seal 146 is arcuate to conform to the surface of sleeve 142 and has a part-conical external surface to conform to the conical inner surface of housing 130.
Patent GB-871946-A (GB)
Title: A generator of supersonic vibrations
IPC: B06B1/06
Filed: 1959-07-22
Abstract: 871,946. Piezo-electric motors. VUMA, VYVOJOVY USTAV PRE MECHANIZACIU A AUTOMATIZACIU. July 22, 1959 [Aug. 8, 1958], No. 25155/59. Class 35. [Also in Groups XXXIX and XL (b)] In a piezo-electric device for generating ultrasonic vibrations, the piezo-electric transducer 11 which transmits vibrations to a load (not shown) through a mechanical resonator 4 having a half-wave mode of resonance, is immersed in an insulating liquid and is provided with an air-space underneath in the form of a dish-shaped element 6, for preventing the downward transmission of vibrations. The insulating liquid, up to level 0, is retained in a sealed container 1, 2, and the dish 6 is pressed by a spring 7 on the leading-in insulator 8 against the metallic coating of the transducer underside. The vibrator may be sealed into the bottom 3 of a vessel by means of a ring 5.
Patent GB-949221-A (GB)
Title: Improvements in or relating to breathing apparatus
Inventor: YOUNG DAVID HERBERT
IPC: A62B9/02
Filed: 1960-07-19
Abstract: 949,221. Respiratory appliances. WALTER KIDDE CO. Ltd. July 14, 1961 [July 19, 1960], No. 25201/60. Heading A5T. [Also in Division F2] A breathing apparatus incorporates a regulator in which a pressure-sensitive element actuates at least two demand valves, either simultaneously or in sequence. In the regulator shown in Fig. 1, inhalation by the user through pipe connection 2 causes the diaphragm 4 to descend and, by bearing on a spherical tip 14 on a valve rod 11, tilts the valve 6 to admit gas from a main supply 8. When this supply is exhausted, however, the initial rarefaction in the chamber 3 continues and the diaphragm is drawn down sufficiently for the second valve rod 12 to be also depressed and so open a valve 7 to allow gas to be received from an emergency supply. Preferably an audible warning device 10 is connected in the emergency supply line and, as described, is a vibratory valve type, either connected to a diaphragm in the manner of a pressure regulator or arranged as a relief valve. The regulator may control two valves simlutaneously when two gases are to be mixed, such as oxygen and air in aircraft. In this apparatus oxygen from a supply line 64 is passed through a pressure regulator 65 and pipe 66 to the valve 61, whence it passes to the user through an outlet 51. A bleed 67 allows oxygen to flow through a pipe 68 to an exhaust valve 71 which may be more or less, partially closed by a pressure-sensitive aneroid 72. The resultant pressure built up in the pipe 68, which consequently increases with altitude, is applied to the diaphragm 74 of the pressure regulator 65 and also to a diaphragm 53 which bears on the control diaphragm 52, as a result of which oxygen is supplied at a pressure which increases with altitude. The second supply valve 62 receives air from a supply line 78 through a pressure regulator 77 and, in this case, the control pressure in the line 68 is applied to a sensitive element 75 which causes a reduction in the output of the regulator 77 with increase in altitude. Above a predetermined altitude the supply of air is cut-off and a second aneroid 73, bearing on lever 70, causes the valve 71 to be completely closed so that oxygen is supplied at a steady high pressure. Specification 949,222 is referred to.
Patent GB-1475687-A (GB)
Title: Homopolar dynamo-electric machines
IPC: H02K55/06
Filed: 1973-05-25
Abstract: 1475687 Homopolar machines INTERNATIONAL RESEARCH & DEVELOPMENT CO 21 May 1974 [25 May 1973] 25221/73 Heading H2A A homopolar machine has a static field winding and two coaxial contra-rotating rotors each of which has a conducting path cutting the winding field and which are so connected by a current transfer means that current flows in opposite directions in the two paths. The inner drum rotor 15 is mounted at one end on the casing end 10 by a bearing 16 and carries at the other end a shaft 17 running in a bearing 22 mounted on the outer drum rotor 20. This has further bearings 21 on the inner rotor and 19 on a hollow output shaft 18 mounted on the casing end 11. Each rotor carries four sets of interleaved squirrel cage windings, each winding being connected in series via brushes (e.g. 45) and slip-rings (e.g. 37) to a winding on the other rotor. The supply is connected to the ends of one winding on each rotor via brushes 30, 31, slip rings 28, 29 and an extra conductor 32. The arrangement is such that the current flow in each rotor is axial but in opposite directions so that the rotors rotate in opposite directions in the fields of superconducting windings 13, 14. Further annular windings 13<SP>1</SP>, 14<SP>1</SP> may be provided inside the inner rotor 15. The machine may be either a motor or generator but as a motor is especially useful for driving contrarotating marine propellers. The drive shafts 17, 18 may be coupled by suitable gearing.
Patent GB-731450-A (GB)
Title: Overload safety device for hoisting apparatus or the like
IPC: B66D1/58
Filed: 1952-10-08
Abstract: 731,450. Load-uniting devices. PUTZER, H. Oct. 8, 1952 [Oct. 8, 1951], No. 25229/52. Class 78 (5). A winch drum secured to shaft 2 is driven from member 5 through a resilient friction ring 4 so that no drive occurs when a predetermined torque is exceeded. The device may be combined with a self-sustaining gear, member 1 being screwed on to shaft 2 and member 5 being notched and co-operating with a pawl.
Patent GB-171805-A (GB)
Title: Improvements in plants and processes for the gasification of coal
IPC: C10J1/213
Filed: 1920-09-01
Abstract: 171,805. Woodall, Duckham, & Jones (1920), Ltd., and Duckham, Sir A. M. Sept. 1, 1920. Producers.-In a method of gasifying coal in which the coal is fed into vertical retorts a, the coke from which is treated in producers b with alternate blasts of air and steam, tar condensed from the gases produced is injected into the producers. The tar is sprayed through openings d on to the incandescent coke at a part above the steam blast at the grate level when steam is admitted for the production of water gas. An arch c extends over the generators and affords spaces into which the tar may be effectively sprayed. The Provisional Specification refers to Specification 164,935.