baber/WOPTO huggingface dataset:
Patent GB-1303595-A (GB)
IPC: F16B19/10
Filed: 1971-04-19
Abstract: 1303595 Riveting HI-SHEAR CORP 19 April 1971 [11 Feb 1970] 21529/71 Heading B3U [Also in Division F2] A bush 30, for facilitating the securing of a sandwhich panel 20 having a honeycomb core 21, between two skins 23, 24 to a structural member 58, comprises a sleeve 31 with a collapsible wall portion 37 adjacent a head 32 such that when the portion 37 is collapsed outwardly as at 55 by axial compression, one skin 23 is clamped between the head and the collapsed portion, and a tubular spacer 40 in screwthreaded engagement with the sleeve 31 so that it may be turned to bring a bearing face 44 of an external annular flange 43 into engagement with the inner face of the other skin 24. A bolt 57 bears in the bush 30 and is retained by a torque-limiting nut (50) (Fig. 9, not shown) of the type having a driving section (52) joined to a threaded body 51 by a shear section (53) which shears at a predetermined torque to leave only the body 51, as in Fig. 3. In a modified bush, Fig. 10, the sleeve 60 comprises separate members 62, 63 secured together by a retainer 61, the member 62 forming the collapsible portion. To install the bush, a puller rod 83 of a setting tool 80 is passed through the bush and a puller nut 84 threaded thereon. The rod 83 is then pulled towards the anvil 81 to collapse the sleeve portion 37. After removal of the tool, the spacer 40 is turned until it engages the skin 24 by means of a screwdriver inserted through the hole in skin 24 to engage a slot 46 in an end base of the spacer.
Patent GB-224627-A (GB)
Title: Improvements in or relating to advertising devices and the like
IPC: G09F7/08
Filed: 1923-08-23
Abstract: 224,627. Matthewman, M. Aug. 23, 1923. Loose-letter and like signs.-Symbols 8 are connected to supporting bars by lugs, corners, &c. 9 which are formed integrally and co-planar with the body of the symbols, such lugs passing through holes or loops in the supporting bars and separate holes being provided for each symbol. The symbols are temporarily bent for insertion or removal, and overlap at their edges so that light from behind the symbols may not pass between them.
Patent GB-238391-A (GB)
Title: Improvements relating to tea cutting machines
IPC: A23F3/12
Filed: 1924-09-10
Abstract: 238,391. Phillips Engineering Co., Ltd., and Brooke, N. Sept. 10, 1924. Tea, cutting.-Cellular rolls for tea-cutting machines are formed of a number of steel discs a, each with teeth milled at its periphery, the tips of the teeth being subsequently hardened for example by case hardening or heat treatment, the discs being separated by plates or washers c, preferably of hardened steel. The discs a and plates c may be clamped on a shaft b by screwnut e between collars d which may carry a retaining pin or pins f inserted through the discs and plates to ensure the relative staggering of the roll cells. The milling of the teeth may be effected by clamping a number of discs on a support and operating on the group with a cutter. Cellular rolls built up of cast iron toothed discs having a shroud at one side are also referred to.
Patent GB-719053-A (GB)
Title: Improvements in the lubrication of ball and roller bearings
Inventor: SQUIRE ALLAN MAURICE
IPC: F16C33/66
Filed: 1950-08-30
Abstract: 719,053. Lubricating; bearings. SPERRY GYROSCOPE CO., Ltd. Aug. 23, 1951 [Aug. 30, 1950], No. 21431/50. Classes 12(1) and 12(3) A ball or roller bearing assembly of the kind in which there is a tendency for oil to flow axially from one side of the bearing to the other, has an outer race carried in a housing formed by two members H of oil absorbent material such as sintered metal or porous ceramic material, which two members may be connected by a wick. In operation, the right hand part H acts as a reservoir and passes oil through the bearing to the other portion H which absorbs the oil and passes it through the wick W for reintroduction into the bearing. The wick W however is not essential if the member H on the input side is initially charged with oil to act as a source, the bearing running satisfactorily until the reservoir is dry. In addition, a cage of oil absorbent material can be arranged to collect surplus oil.
Patent GB-957738-A (GB)
Title: Improvements in or relating to hoses for cooling arrangements
Inventor: WEKER PETER
IPC: F16L53/70
Filed: 1961-06-15
Abstract: 957,738. Hoses for cooling purposes. MARCONI CO. Ltd. April 6, 1962 [June 15, 1961], No. 21648/61. Heading F2P. A hose for use in cooling a remote object, such as a television camera employed for supervision purposes in nuclear reactors, and by means of a cooling medium, e.g. liquid CO 2 , which has to be fed to the object over a path of substantial length and passes through a high temperature zone, comprises an inner hose member 3 for supplying coolant to the object and having spaced holes 6 along the wall thereof and leading to the interior space of an outer hose 1 also provided with spaced holes 7 in the wall thereof and which serves to retain a constantly changing gas filling which is under pressure and is cooled by and derived from evaporation of liquid coolant from the inner hose. The hoses 1, 3 may be of convoluted form and have outer, braided, permeable coverings 2, 4 of stainless steel, and the holes may be spaced both circumferentially and in the axial direction, the axial spacing decreasing gradually from the inlet end to the outlet end of the hose. The hose 3 is supported within the hose 1 by spiders comprising three radial arms fixed to the hose 3 and in the form of spring rods; the hose 3 and the spiders are inserted into a rigid tube to compress the rods and the tube is slid into the hose 1 and afterwards withdrawn so that the rods spring outwards into the convolutions of the outer hose. Electrical conductors 5 are laid on the braiding 4.
Patent GB-763243-A (GB)
Title: Improvements relating to the manufacture of cathode ray tubes
Inventor: COLBORNE RONALD HENRY
IPC: H01J29/28
Filed: 1953-08-06
Abstract: 763,243. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 30, 1954 [Aug. 6, 1953], No. 21673/53. Class 39(1). In a method of manufacturing a cathode-ray tube in which a metallic layer is deposited on a layer of organic material which is afterwards removed, the tube is baked while exposing the interior to an atmosphere containing more oxygen than atmospheric air. In making aluminized screens, the aluminium is deposited on a collodion film covering the phosphor, which film is subsequently baked away ; the time of baking can be reduced by passing a stream of oxygen or oxygen-enriched air through the tube.
Patent GB-574955-A (GB)
Title: Unitary balanced-inductor system
IPC: G01V3/10
Filed: 1943-12-24
Abstract: 574,955. Locating conductors ; magnetic tests. HAZELTINE CORPORATION. Dec. 24, 1943, No. 21683. Convention date, Dec. 31, 1942. [Class 37] [Also in Group XXXV] A unitary balanced inductor system, particularly for detecting buried metal objects or bodies of ore comprises a pair of relatively fixed inductors of the same shape but different sizes so proportioned that alternating currents of predetermined relative magnitudes and phases therein produce a magnetic. field which has zero intensity over a predetermined surface in space. A third inductor is positioned in fixed relation to the pair of inductors and lying in this surface, so that it has zero inductive coupling to the pair of inductors when carrying the predetermined currents and in the absence of external concentrated bodies of magnetic or conductive materials but has substantial inductive coupling in the presence of such materials. The complete indicating system shown in Fig. 1, includes an oscillation generator 10 and a receiver 11 having an indicating device 12 in its output circuit. The balanced inductor system 14 comprises a pair of inductors 15, 16 which are connected in series opposition to the oscillator 10. A third coil 18 is connected to the receiver 11. Normally the magnetic fields due to the coils 15, 16 neutralise one another at the position where the coil 18 is located, and no signal is developed in the receiver 11. The presence of a metal object in the vicinity upsets this balance and a signal is obtained. A construction of the inductor system is shown in Fig. 2. Each of the coils 15, 16, 18 is wound of thin insulated copper or aluminium ribbon cemented so as to be self-supporting. Each coil is mounted by spaced rubber beads 21 in concentric circular grooves 22, 23 cut in two flat pieces of wood. These are cemented together with crossed grain. The coils 15, 16 may alternatively be in parallel planes and the coil 18 may be in the same plane as one of these coils or may be otherwise arranged provided that the combined inductive effect on it of the coils 15, 16 is normally zero but is considerable in the presence of a conducting object. The coils 15, 16, 18 may alternatively be of square shape. The inductor system may have a carrying handle and may be counterweighted so as to maintain its relation to the surface of the ground while being carried. Specification 231,820, [Class 37], is referred to.
Patent GB-637541-A (GB)
Title: Incandescent electric lamp
IPC: H01K1/66
Filed: 1947-08-07
Abstract: 637,541. Lamp-caps. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 7, 1947, No. 21693. Convention date, Nov. 7, 1938. [Classes 36 and 38 (i)] In a gas-filled, incandescent lamp of the type having two contact prongs, one of the prongs contains a fuse 10. The prong is formed by one of the supports 3 for the lamp filament being extended through the lamp cap as a hollow shaft 12. One end of the fuse wire 10 is secured to the bottom of the hollow shaft and is surrounded by an insulating sleeve 14. Another insulating sleeve 15 is placed round the shaft with a metal sleeve 16 arranged round it to provide the contact surface. A heavy wire 19 connects the other end of the fuse wire to the sleeve 16, cement 18 then being injected through the end of the latter to hold it in position and to seal the end of the fuse. Thin cups 8 of a metal such as " Fernico " capable of being sealed to glass surround the prongs where they are sealed through the lamp cap, sealing rings 9 of copper being located between the cups and the prongs.
Patent GB-586390-A (GB)
Title: Magnetic recording machine
IPC: G11B5/49
Filed: 1943-12-28
Abstract: 586,390. Ratchet clutches. HELLER, H. S. Dec. 28, 1943, No. 21752. [Class 80 (ii)] [Also in Groups XIX and XXXVIII] In a magnetic tape machine for recording and reproducing sound and other signals or indications, each tape reel 84, Fig. 6, comprises two flanges 92, fastened to two complementary hub members 90, 91, enclosing a freewheel clutch comprising a disc 95, Fig. 7, with oblique slots 97 containing rollers 98 urged against the shaft 83 by resilent felt pads 99. The free-wheel of one of the two reels clutches in one direction and that of the other reel in the opposite direction to permit the drive to be reversed. The reels are held in place by a bar 116 fastened at its centre by a screw 118. Each reel is braked by friction pads 110, 112 adjustably tightened by a screw 115.
Patent GB-767991-A (GB)
Title: Chemical modification of cellulose
Inventor: DOUGHTY MARK
IPC: C08B11/08
Filed: 1954-07-27
Abstract: Cellulose ethers having an unsubstituted or a substituted phenol or naphthol group linked through its oxygen atom (or one of its oxygen atoms, when it contains more than one oxygen atom) by a single alpha, gamma-glycerol diether linkage to the cellulose are produced by reacting cellulose with a mono-glycidyl ether of a compound containing an unsubstituted or a substituted aromatic group such as phenyl, naphthyl or a naphthol, or with a chlorhydrin of the formula ArOCH2CH(OH)CH2Cl, where Ar is an aromatic group such as phenyl, naphthyl or a naphthol.  The cellulose may be natural or regenerated and in the form of fibres or cloth.  The cellulose may be immersed in an aqueous solution of caustic soda or potash, the excess solution squeezed out, and the alkali cellulose heated either in the undiluted glycidyl ether at 100-120 DEG  C. or in a solution of the ether in water or in an organic solvent at or near the boiling-point of the solution, the reaction time being 10-60 minutes.  In an example a 33 per cent solution in a 50 per cent water-dioxane mixture of the mono-glycidyl ether of phloroglucinol (prepared from phloroglucinol and epichlorhydrin) is heated for 20-35 minutes at 100 DEG  C. with viscose rayon cloth previously treated with an 18 per cent aqueous solution of caustic soda.  The cloth is then removed from the solution, washed successively with dilute sulphuric acid, boiling dioxane, hot soap solution and boiling water, and dried.  In two other examples, viscose rayon is reacted in a similar manner with the monoglycidyl ether of 2,7-dihydroxynaphthalene and with o-chlorphenyl glycidyl ether respectively, the latter being in the form of a 40 per cent solution in xylene.  The preparation of the mono-glycidyl ethers is described (see Group IV (b)).  Specification 757,386 is referred to.ALSO:Mono-glycidyl ethers of unsubstituted or substituted phenols or naphthols are prepared by treating a phenol or naphthol with caustic soda and epichlorhydrin.  In an example, the mono-glycidyl ether of phloroglucinol is prepared by reacting one mol. of phloroglucinol in 4 mols. of epichlorhydrin with one mol. of sodium hydroxide in 50 per cent aqueous solution.  In a second example the mono-glycidyl ether of 2,7-dihydroxynaphthalene is prepared by reacting one mol. of 2,7-dihydroxynaphthalene in excess epichlorhydrin with one mol. of sodium hydroxide in 50 per cent aqueous solution.  In a third example, o-chlorphenyl glycidyl ether is similarly prepared from o-chlorphenol, epichlorhydrin and caustic soda.  Cellulose may be reacted with the mono-glycidyl ethers thus prepared (see Group IV (a)).
Patent GB-345184-A (GB)
Title: Manufacture of emulsions of waxes
IPC: C09K23/00
Filed: 1930-07-21
Abstract: Wax emulsions for use in paints or as water-proofing agents are made by dissolving a wax in a solution of a cellulose derivative in a solvent in which the wax is soluble only when the solvent is hot, and cooling the solution.  Suitable cellulose derivatives are esters, ethers or ester-ethers, while the solvent may be a hydrocarbon or a mixture of a hydrocarbon and an alcohol.  In examples (1) A T-cellulose B (an ethyl cellulose soluble in hydrocarbons, but insoluble in water) is dissolved in hot para-cymene and beeswax is added.  The solution is cooled by ice-water while stirring.  (2) The procedure is as in example 1, but less wax is used and a mixture of high-boiling solvents, consisting of para-cymene, monobutyl glycol and benzyl alcohol, suitable for use in canvas painting, is employed. Coating processes.--A layer of paint may be coated, when dry, with the wax emulsion, which, when dry, may be heated for a short time above the melting point of the wax used.
Patent GB-997503-A (GB)
Title: Improvements in or relating to electron tubes
IPC: H01J9/38
Filed: 1963-06-04
Abstract: 997,503. Discharge tubes. ELECTRONICS CORPORATION OF AMERICA. June 4, 1963 [June 6, 1962], No. 22233/63. Heading H1D. During manufacture of an ultra-violet radiation detector, tungsten electrodes are purified by being gradually heated to a glowing temperature in a reducing atmosphere, and then cooled rapidly, after which the envelope is evacuated and refilled with a second reducing atmosphere and a discharge is produced between the electrodes. Finally, the second reducing atmosphere is removed and the envelope is filled with a final atmosphere and sealed. As shown in Fig. 1, the detector comprises two tungsten electrodes of 20 mil. diameter wire, having central parallel portions spaced 30 mils. apart. The electrodes are welded to tungsten supports and cleaned by electrolytic polishing in a soda phosphate solution, before being mounted in a borosilicate glass envelope in a nitrogen-hydrogen atmosphere which prevents oxidation. The envelope is filled with palladium-filtered hydrogen to a pressure of 180 mm. of Hg, and the electrodes are resistance heated to 1200‹ C. in one hour. After a further 15 mins., the electrodes are cooled to room temperature in 1 min., and the envelope is evacuated to less than 10<SP>-5</SP> mm. of Hg. The tube is then refilled with hydrogen and subjected for 1 hour to avalanche breakdown by exposure to U.V. light of 2500Š wavelength with 700V applied between the electrodes. Finally, the tube is again evacuated and refilled with pure hydrogen. The tube is insensitive to solar U.V. radiation but is highly responsive to combustion flames.
Patent GB-204474-A (GB)
Title: Improvements in or relating to high tension electric transformers
IPC: H01F30/10
Filed: 1922-08-16
Abstract: 204,474. Veifa-Werke Akt.-Ges., and Dessauer, F. Aug. 16, 1922. Transformers.-In a high-tension transformer in which the core c or casing l is strongly insulated from the earth and given a predetermined potential, the high-tension winding is divided into two sections a, b electrically connected together, the low-tension or exciting winding d being mounted between the two sections and strongly insulated from the core. The potential of the core is determined by a connection to the hightension winding. In the arrangement shown in Fig. 1, the winding d is strongly insulated from both sections a, b of the high-tension winding, but in a modification, shown in the upper part of Fig. 3, the initial point of the high-tension winding is arranged at the end of the section b adjoining the winding d, so that the latter need only be insulated from the section a. The winding d may be supplied with current from a winding d<1> on an auxiliary transformer, as shown in the lower part of Fig. 3.
Patent GB-459116-A (GB)
Title: Improvements in and relating to drill spindle arrangements
IPC: B23Q1/70
Filed: 1936-08-13
Abstract: 459,116. Drill spindles. HAFNER, O., Jenfelderstrasse, Wandsbek, Hamburg, Germany. Aug. 13, 1936, No. 22369. [Class 83 (iii)] A drill spindle arrangement in which the spindle proper c is relieved of the pull exerted on the belt pulley k, comprises a driver sleeve e, to a conical portion of which the pulley is fastened, keys or projections f<1> on the end of the sleeve engaging the spindle and grooves h on its periphery providing inner races for its ball bearings i. The drill spindle is rotatably carried in a rack-and-pinion-fed sleeve b and an adjustable sleeve r with a lateral projection s carried by the pinion shaft q engages with a stop screw p arranged in a lug on the bearing for the feed shaft to limit the depth of feed. A passage t is provided in the pulley for lubricating the spindle bearings.
Patent GB-1496736-A (GB)
Title: Metal joist
IPC: E04C3/07
Filed: 1975-05-23
Abstract: 1496736 Structural beams; reinforced concrete floors HAMBRO STRUCTURAL SYSTEMS Ltd 23 May 1975 [11 June 1974] 22552/75 Headings E1K, E1S and E1W In a metal joist having a top chord 5 or 45, a bottom chord 7 or 47 and a web which may be either a zig-zag rod 3 or a flat sheet 43 integral with the chords, the top chord includes an upper portion 9 or 49 of upright S cross-section and a lower portion connected to the web, the S shape being offset in one direction from the plane of the web and the lower portion including a horizontal flange 17 or 55 extending in the other direction from the plane of the web, and the cross-section of the top chord between the base of the S and the flange including an inclined step 11 or 51. Typically the step is connected to the flange by a shelf 13 or a shelf 53 which overlies the flange. The bottom chord may be formed by a pair of back-toback angles 19, 21 or may be integral with the web and of oval cross-section. Slots for receiving spacer bars 25 or 59 may be provided in the upper chord or in the web, the bars being provided with handles 37. Additional support bars 61 may space the bars 59. Sheets of plywood are placed over the spacer and support bars and are sized to fit beneath the inclined steps 11 or 51 and force the joists apart, mesh reinforcement is placed over the joists and concrete is poured on to the plywood to cover the reinforcement and the top of the joists. When the concrete is sufficiently set the spacer bars are twisted through 90 and removed together with the support bars 61 and the plywood.
Patent GB-1397878-A (GB)
Title: Fluid pressure switch
IPC: H01H35/32
Filed: 1973-05-11
Abstract: 1397878 Fluid actuation of switches; switch contacts LEAFIELDS ENG Ltd 11 May 1973 22587/73 Heading H1N A fluid pressure switch has contacts 22 urged towards movable contact carrier 24 which includes a conductive portion 25 which bridges contacts 22 when the switch is operated, opening of the switch being prevented by a projection 33 on carrier 24 engaging ends 28 of contacts 22. As shown, fluid pressure through connector 12 depresses bellows 14, 15 which depresses sleeve 24 (the undepressed position being shown in the top half of Fig. 1, the depressed position being shown in the bottom half of Fig. 1). Depression of sleeve 24 moves conductive portion 25 to bridge contact tips 28 of spring contacts 22. This is achieved by cams 33 on sleeve 24 forcing tips 28 away from sleeve 24 so that tips 28 ride over cams 33 till they pass their right-hand edges when they snap down on to portions 25 behind cams 33 to prevent return of sleeve 24 when the fluid pressure decreases. Tips 28 are locked against portions 25 by sleeve 24 being urged to the right by spring 27 so that cams 33 force tips 28 into sloping recesses 32 in fixed member 20 thus locking tips 28 against portions 25. There are two pairs of contacts 22, one shown in the top half of Fig. 2 and one, not shown, in the bottom half, each pair being bridged by a portion 25. To open the contacts, cover 11 must be removed and access gained to contacts 22 which are moved away from beneath cams 33 by a tool.
Patent GB-170938-A (GB)
Title: Improvements in hydrocarbon vapour generators
IPC: F23D11/44
Filed: 1920-07-30
Abstract: 170,938. Goold, L. W., (Colmar Burner Co.). July 30, 1920. Vaporizing-apparatus; atmospheric vapour burners.-The valve spindle controlling the outlet from a hydrocarbon vapour generator is fitted with means for clearing the outlet and for removing carbon &c. from the internal surface of the generator. The tubular generator 7 heated by a burner 5 is provided at one end with a hydrocarbon inlet fitting 21 and at the other with a hollow plug 8 carrying a vapour outlet nozzle 10. A valve surface 15 on a spindle 14, which screws into the threaded bore of the plug 8, controls the passage of the generated vapour through radial perforations 36 in the plug to the nozzle 10. The valve spindle 14 is fitted with an operating-handle 19 and carries centrally a needle-pointed rod 26 having a reduced end 27. The rod 26 is provided with a push-button 31 by which it may be operated against the resistance of a spring 32 to clear the vapour nozzle orifice 12. The valve spindle 14 is grooved to receive a helical spring 18 which causes the oil to flow in a spiral path around the spindle, and, as the spindle is operated, cleans the internal surface of the generator. Packing-glands 20, 30 are provided for the valve spindle 14 and the cleaning-rod 26 respectively.