baber/WOPTO huggingface dataset:
Patent GB-708552-A (GB)
Title: Improvements in and relating to the supply of air to compressed air apparatus, more particularly in subterranean works
Inventor: DUFEY EDUARD
IPC: F04D25/00
Filed: 1951-10-01
Abstract: 708,552. Air turbines. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. Oct. 1, 1951. No. 22835/51. Class 110(3) Low pressure air (at about 2-3 atmospheres) is supplied to consuming apparatus (e.g., mining equipment) by a pipeline which is supplied from a medium pressure pipeline '(about 5-10 atmospheres) with air which is reduced in pressure by the required amount by being subjected to a pressure drop while performing useful work. An air turbine 3 is actuated by air from a medium pressure line 1, and exhausts to a low pressure line 9. The turbine drives a centrifugal compressor 4 which delivers air to the low pressure line 9. The compressed air coming from the compresssor is passed through a heat exchanger 2 to preheat the air supplied to the turbine, so as to prevent formation of ice during or after the expansion in the turbine. The air from the turbine is used to cool the casing of the compressor or for the in termediate cooling in the case of a multi-stage compressor.
Patent GB-735719-A (GB)
Title: Root crop harvester
Inventor: HENDERSON WALLACE MITCHELL
IPC: A01D17/00
Filed: 1952-09-11
Abstract: 735,719. Root-crop harvesters. RANSOMES, SIMS & JEFFERIES, Ltd. Dec. 10, 1953 [Sept. 11, 1962], No. 22885/52. Class 6 (3). A root-crop harvester comprises a chassis 1 supported on land-wheels 2 and carrying a share 3 at the front, a jigging grid 4 being arranged to receive the excavated material and pass it to the interior of a perforated drum 5 rotary about a longitudinal axis ; pockets 8 in the drum-interior carry the crop up to fall on to a conveyer 9 partially extending within the drum, the conveyer being associated with a rotary separating member 11 which deflects the crop laterally on to an elevator 12. The rear ground-wheel is adjustable relatively to the chassis 1 by means of a screw 13, and the share is likewise adjustable by a lever and detent 14. The rotary device 11 forms the subject-matter of Specification 735,720, [Group II]. All the moving parts may be driven by the groundwheels, or through a shaft 15 coupled to the tractor power take-off. Specifications 671,834 and 735,721, [Group XXX], also are referred to.
Patent GB-415108-A (GB)
Title: Improvements in and relating to pails, buckets and like receptacles and containers
IPC: A47J47/19
Filed: 1933-02-14
Abstract: 415,108. Buckets &c. RENDLE, V., Bull Hill, Great Clacton, Essex. Feb. 14, 1933, No. 22896/34. Divided on 415,095. [Class 66.] The bail handle 8 of a bucket, bin &c. terminates in eyes or loops 9, 10, within which are received grommets or bushings 11 of rubber, leather &c. adapted to be fitted over posts 5, 6, projecting laterally from the sides of the vessel and formed with enlarged ends 7. The grip portion 12 of the handle is either of rubber or of wood covered with rubber. The lower edge of the vessel is fitted with a silencing bead or tyre 3.
Patent GB-812127-A (GB)
Title: Improvements in and relating to electrical circuit means for producing a stabilized difference between the currents in two electrical circuit elements
Inventor: DOWNING BRIAN THOMAS
IPC: G05F3/08
Filed: 1954-08-06
Abstract: 812,127. Automatic current regulation. ENGLISH ELECTRIC CO. Ltd. Aug. 5, 1955 [Aug. 6, 1954], No. 22943/54. Class 38 (4). The difference of the currents in linear resistors 62, 63, Fig. 3, is made independent of voltage fluctuations of an A.C. supply by choosing a suitable ratio between secondary windings 57, 56 of a transformer 55 energized from the supply, the two secondary windings respectively supplying the resistors through rectifiers 58 and further rectifiers 61 serving as non-linear resistors with similar characteristics. Formulae for calculating the necessary ratio are given.
Patent GB-818440-A (GB)
Title: Composite cigarette filters
Inventor: SCHUR MILTON OSCAR
IPC: A24D3/02
Filed: 1957-07-19
Abstract: 818,440. Making cigarette mouthpieces. OLIN MATHIESON CHEMICAL CORPORATION. July 19, 1957, No. 22945/57. Class 130. Multi - length mouthpiece rods of different types, e.g. empty paper tubes or cellulose - filled cylinders, and cylinders filled with paper carrying activated charcoal, are dropped from respective hoppers 10, 11, Fig. 1, into successive sets of aligned flutes 9 of discs 1 . . . 8, Fig. 2, and are subdivided by graded-size knives 19 . . . 22, the discs 2, 4, 6, 8 rotating slightly faster than the discs 1, 3, 7, 9 so that in half a revolution they have gained one flute space and composite mouthpiece assemblies are presented for transfer by fingers 25 to a wrapping roll 40. Alternate flutes of the outer discs 1, 8 are omitted so that the rods from the hopper 10, which are as long as the full width of the disc assembly, cannot enter the corresponding flutes of the discs 2 . . . 7 which are left free to receive shorter rods from the hopper 11. The discs 5 . . . 8 are driven from a chain 26, the discs 6, 8 via gearing 31, 32, 34 and the discs 5, 7 via gearing 31, 37, 35 of slightly different ratio. The discs 1 . . .4 may be driven from the other side of the disc assembly similarly or by an equivalent arrangement including a shaft drive 133 for the disc 4. The composite mouthpiece assemblies are supported on the roll 40 in roller nests of which outer rollers 42 are rotated by rubber rings 55, Fig. 3, of a suction drum 47 to wrap round the assemblies bands cut by knife means 53 from a web 48 pasted at 51. The suction drum 47 has a peripheral speed greater than the web speed to space the bands and has a pressure chamber 54 to blow the bands on to the assemblies. Assemblyaligning side guides (not shown) may be employed in conjunction with shields 45, 56. The wrapped assemblies pass to a drum 58 on which knives 59 subdivide them by cuts 65, 66, Fig. 8, into three double-length mouthpieces each for assembly between two cigarette rod lengths and subsequent division into two mouthpiece cigarettes. In a modification, hoppers 78, 86, Figs. 5 and 6, drop multilength mouthpiece rods of different types into flutes of sets of belts 71 . . . 77 and 81 . . . 85 all travelling at the same speed and of which the belts 72, 74, 76 and 82, 84 return over sprockets 90 and 96 whilst the belts 71, 73, 75, 77, 81, 83 and 85, on to which belts sections into which the rods have been divided by knives 87, 88 have been channelled by guides 92, 99, 100, pass to a common discharge sprocket 89.
Patent GB-246538-A (GB)
Title: Improvements in or relating to electrical discharge lamps
IPC: H01J17/00
Filed: 1924-09-29
Abstract: .246,538. Bullimore, W. R. Sept. 29, 1924. Vacuum tubes. - A lamp has a pair of electrode chambers each containing an electrode made of a metal, such. as magnesium, calcium, or platinum, or of a compound, of such a nature as to form around the walls of the chamber by cathodal deposition, an initial deposit, which absorbs a quantity of gas before the lamp is put into operation, and maintains intact the filiing of neon or other gas, during use; the deposit also serves to increase the surface of the electrode. As shown, the deposit g, formed by the electrode b, extends to the junction of the chamber a with the lighting tube f. In a modification each electrode consists of a strip secured across the top of a re-entrant tube and bent to form a loop; or an electrode of disc shape may be used.
Patent GB-1280616-A (GB)
Title: Automatic load dependent compressed air brake system
IPC: B60T8/18
Filed: 1971-04-19
Abstract: 1280616 Fluid pressure brakes WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 19 April 1971 [10 April 1970] 23244/71 Heading F2F A load responsive compressed air brake system for a vehicle comprises a control valve 2, a cylinder 5 for braking the vehicle when unladen connected thereto, a load compensating brake cylinder 6 connected to a pressure transmitter 4 responsive to valve 2 and to the load on the vehicle, both of the cylinders 5, 6 acting on a brake block 17 against a spring 18, a pressure limiting valve 7 connected to the valve 2 to limit charging of cylinder 6 irrespective of the load on the vehicle and means controllable by the pressure in cylinder 5 to relieve the cylinder 6. The pressure transmitter 4 includes a cylinder 24 divided by a piston 19 into upper and lower chambers 25, 26 which are connected to valve 2 and cylinder 5 and are open to atmosphere respectively, the piston 19 operating an admission valve 11 through a lever 20 pivotally mounted on a roller 21 movable in response to the vehicle loading. An upper chamber 30 of valve 11 is in communication with an auxiliary reservoir 3 and a piston 31 attached to a hollow tappet 32 divides the chamber below a valve body 27 into compartments 33, 34 of which the former is connected to cylinder 6 while the latter is open to atmosphere. When the pressure in main brake line 1 is reduced control valve 2 admits pressure to piston 19 and if the vehicle is unladen the roller 21 will be in such a position that valve 11 will not open and the pressure will act exclusively on cylinder 5. Pressure limiting valve 7 includes a valve member 35 biased by a spring 22 to rest on a seat 36 or on a hollow tappet 37 which exhausts to atmosphere. When pressure air from valve 2 enters an upper chamber 39 as well as a lower chamber 41 of an auxiliary cylinder 40, the valve 7 remains open until a piston 42 attached to tappet 37 is forced downwards. The pressure in chamber 41 displaces a piston 8 upwards to open a valve 11 so that air from reservoir 3 now passes into cylinder 6. Valve 11 closes unless kept open by lever 20, its instant closure being modified by a choke bore 9 by creating a pressure build up in upper chamber 13 of cylinder 40. Compressed air from cylinder 5 also enters a chamber 47 above a piston 45 to overcome a spring 46 and move a hollow tappet 37 via a lost motion coupling 44 to exhaust chamber 39 to atmosphere through the tappet and thus exhaust chamber 41 to allow piston 8 to move down and exhaust chamber 33 of valve 11 and thus exhaust cylinder 6.
Patent GB-415582-A (GB)
Title: Improvements in and relating to the preparation of synthetic lacquers
IPC: C08G8/00
Filed: 1933-08-22
Abstract: Substances similar to Japanese lacquer are manufactured by oxypolymerizing the products of the reaction, in the presence of an anhydrous acid-reacting condensing agent, of a polyhydric phenol with a substance having a mono- or polyethylenic hydrocarbon chain of at least eleven, preferably at least sixteen, carbon atoms and containing one or more carboxylic groups or derivatives thereof, e.g., ester groups, associated or not with alcoholic or ketonic groups in the chain.  In examples: (1) pyrocatechin and ricinoleic acid are heated with anhydrous zinc chloride and the product is polymerized by heating in air to produce a lacquered coating; (2) pyrocatechin and ethyl ricinoleate are heated with sulphuric acid and the product is oxypolymerized as in (1); (3) pyrogallol is employed in place of pyrocatechin in (1); (4) pyrocatechin and oleic acid are heated with anhydrous zinc chloride and the product is polymerized by heating; in the foregoing examples the product may be emulsified in water; (5) hydroquinone is used in place of pyrocatechin in (4); (6) linoleic acid (raw acid from saponification of linseed oil) is employed in place of oleic acid in (4); (7) elaeostearic acid (raw acid from saponification of tung oil or chinawood oil) is similarly used.  The Specification as open to inspection under Sect. 91 contains an additional example in which hydroquinone and castor oil are heated with zinc chloride while passing a current of nitrogen. This subject-matter does not appear in the Specification as accepted.
Patent GB-875320-A (GB)
Title: Improvements in or relating to methods of fixing shafts into holes in bodies
Inventor: HUBBOLD SYDNEY
IPC: F16D1/06
Filed: 1958-07-21
Abstract: 875,320. Couplings. GENERAL ELECTRIC CO. Ltd. July 21, 1959 [July 21, 1958], No. 23394/58. Class 38 (1). [Also in Groups XXII and XXV] Conduits 2 for electrical installations are secured together and to other electrical fittings 1 by providing a conduit-receiving hole 21 in the fitting &c., and a transverse bore 4 cutting across one side of the hole to receive a cotterpin. This pin has a stepped shank with a screwed part 3 engaging a screwed part of bore 4, a self-tapping part 7, a plain part 8 and a tool-engaging socket 6. The pin part 7 cuts and engages screw-threads on the conduit. The conduit may be replaced by a metal-sheathed conductor.
Patent GB-392590-A (GB)
Title: Improvements in or relating to cans or like containers
IPC: B65D51/20
Filed: 1931-08-20
Abstract: 392,590. Cans &c. LOFTS, S. E., The Woodland, Kingston Road, Ewell, Surrey. Aug. 20, 1931, No. 23422. [Class 66.] To strengthen and stiffen the metal to be broken away, an outwardly-inclined upstanding rib 5, which may actually overlie the scoring, is provided within a continuous or interrupted external or internal weakening line 4 at the end of a lever lid or other can. According to the Provisional Specification, the rib may be disposed at any angle to the can end.
Patent GB-378649-A (GB)
Title: Improvements relating to laundry presses
IPC: D06F71/06
Filed: 1931-08-20
Abstract: 378,649. Laundry presses. TULLIS, Ltd., D. & J. and JACK, W., Kilbowie Iron Works, Clydebank, Aug. 20, 1931, No. 23435. [Class 138 (ii).] In a laundry press which is closed by fluid pressure acting on a piston 13 working in a cylinder 12 and opened, on release of the fluid pressure, by a spring 14, and wherein the cylinder and piston function as a dashpot tending to resist movement of the press head as the latter approaches the end of its opening movement, the exhaust port 15 of the cylinder, which communicates with atmosphere through a pipe 21 and manually-operated valve 20, is arranged to be masked by the piston as the latter approaches the inner end of the cylinder, thereby trapping a quantity of pressure fluid in the cylinder which can then escape only through a restricted port 16 in a spring-pressed non-return valve 17 interposed in the pressure fluid supply pipe between the manually controlled supply valve 19 and the cylinder.
Patent GB-714897-A (GB)
Title: Improvements in ventilators for windows
IPC: E06B7/06
Filed: 1952-09-18
Abstract: 714,897. Ventilators. GREENWOOD'S & AIRVAC VENTILATING CO., Ltd., and HUGHES, B. D. Sept. 18, 1953 [Sept. 18, 1952], No. 23462/52. Addition to 662,498. Class 137 A ventilator unit for fitting into the glazing aperture of a window comprising a plate 4, furnished with a glazing channel for the reception of window glazing, side plates, not shown, a hood 2, and a control flap 1, hinged to the roof 3 of the hood, is characterized in that means are provided for pivotally controlling the movements of the flap 1. The control means may comprise a spring leaf, or a spring plunger, secured adjacent one side of the flap to frictionally engage the corresponding side plate, one, or more, operating knobs, being fixed to the flap 1. In the arrangement as shown in Fig. 2, the flap 1, mounted, in this case, adjacent the inner end of the roof 3 carries a bracket 10 having a pin 12 which slides in a slot 13 in a plate 14. The latter is pivotally mounted either to a bracket 16 spanning the opening of the ventilator as shown, or to a side plate, the pivotal mounting including a friction washer, not shown, and a pin 15. An operating cord 18 is secured at one end to a hole 17 in the plate 14 and at the other end to the bracket 10. The plate 14 may be provided with an integral operating handle. Other arrangements include the replacement of the plate 14 with link elements and in one such embodiment one arm of the bracket 10 is elongated to replace a link member. Fig. 8 shows an exploded view of the parts used in a further modification. A pin 33, for sliding in slots 32 in flanges 31 of a bracket 30 for securing across the ventilation opening, is adapted to engage the arms 35 of an operating member 36, which when the parts are assembled embraces the bracket 30, a link 37 being pivoted at one end to the pin 33 between the flanges 31 and at the other end to the bracket 10 secured to the flap 1. A spring 40 is provided on the operating member 36 to hold it in any set position, operating arms 41 being also provided having holes 42 for securing an operating cord thereto.
Patent GB-337419-A (GB)
Title: Improvements in road vehicles
IPC: B65F3/20
Filed: 1929-07-31
Abstract: 337,419. Sparshatt, J. H. July 31, 1929. Scavengers' carts comprise a closed container having a feed opening for the material means for displacing the material clear of the feed opening which may consist of a ram plate, gearing, a connecting rod and a cross head working between slides and the material may be loaded on to a grid. As shown a plate 3 works over a grid extending the length of the body 1 so as to divide it into upper and lower compartments. The plate may have a serrated lower edge and is caused to slide by a cross head 8 mounted on rollers 9 running between guides 10. The cross head is connected to a gear 11 by a connecting rod 10<a> and the gear 11 may be driven from the vehicle engine through a clutch, shaft and worm gear. The grid comprises separate T-section bars inclined towards the rear of the body 1. The body may be tippable about the pivots 19 by a screw jack 18.
Patent GB-1180939-A (GB)
Title: Improvements in or relating to Accurate Adjustment Devices.
IPC: F16H1/32
Filed: 1967-05-22
Abstract: 1,180,939. Tuning controls. USM CORP. 22 May, 1967 [23 May, 1966], No. 23610/67. Heading H3Q. [Also in Division F2] In a fine control knob assembly for manually rotating a shaft 24, for example in a radio or television set, a tubular flexspline 28 has a tubular portion 26 secured to the shaft 24 and internal teeth 36 which are caused to mesh at spaced points with external teeth 38 formed on a circular member 14 which is prevented from rotating freely with respect to a chassis 10 by a friction brake consisting of a ring 16 and spring washer 18. The meshing is effected by a wave generator surface 34 in the shape of an ellipsoid formed within a fine adjusting knob 32. The number of teeth 36 on the flexspline 28 exceeds that of teeth 38 by two, or a multiple thereof. On rotation of fine control knob 32 relatively slow rotation of shaft 24 is effected, the member 14 remaining stationary. For coarse adjustment of shaft 24 a knob 30 secured thereto is rotated; the brake 16, 18 then slipping. In a modification, a fine control knob 52, Fig. 3, acts through a flexspline 50, and a coarse control knob 62 incorporates a circular arrangement of teeth 60 and a brake 64, 66.
Patent GB-628474-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/00
Filed: 1946-08-09
Abstract: 628,474. Grinding pistons. SCHWENSEN, C. S. A. GRUM-. Aug. 9, 1946, No. 23677. Convention date, April 6, 1945. [Class 60] [Also in Groups XXII and XXVI] A piston of the integral skirt type in its un-loaded state has an oval cross-section near the gudgeon pin axis and at the open end of the skirt, the major axes being at right angles and parallel to the gudgeon pin axis respectively. Such deviations from the cylindrical or slightly conical form are produced by giving the piston an elastic deformation during grinding or turning. This deformation may be effected either by subjecting the upper and lower edges of the gudgeon bearings to oppositely directed outward and oppositely directed inwardly acting forces respectively or by subjecting the said upper and lower edges to equal but oppositely directed turning moments both located in the plane containing the piston and gudgeon pin axes. The inward and outward forces may be effected by a distending bolt 2 Fig. 5 and a screw bolt 1, or by a nut and bolt 13,14 Fig. 8 in the gudgeon bearings in conjunction with hinged arms 5a Fig. 7 distended by an adjustable spring 8. The turning moments are effected by cylindrical blocks 17 Fig 10 in the gudgeon bearings having shoulders 17b and projections 17a which are forced apart by a wedge 19. Alternatively cylindrical blocks 3 Fig. 6 are bent upwardly by the shoulder 4c of a bolt 4 screwing at H into the interior of the piston head.
Patent GB-882693-A (GB)
Title: Improvements in and relating to the production of composite metallic strip or rod
Inventor: DARLING ALAN SYDNEY
IPC: B21C23/22
Filed: 1959-07-10
Abstract: 882,693. Extruding; welding by pressure; working at specified temperatures; making composite metal strip or rod. JOHNSON, MATTHEY & CO. Ltd. May 24, 1960 [July 10, 1959], No. 23814/59. Classes 83 (2) and 83 (4). Bi-metallic or multilayered strip or rod 21 is made by extruding simultaneously two or more separate billets 19, 20 of different metals or alloy, from separate containers 5, 6 through a common die 4. In the manufacture of silver-copper bi-metal strip, a heated billet of silver 19 is extruded by a ram 11 and simultaneously a heated billet of copper 20 is extruded by a ram 12. An extrusion temperature of 750‹ C. is used to ensure that the silver and copper layers are pressure welded together. The rams are operated by double-acting pistons 9, 10 working in cylinders 2, 3 having fluid ports 13-16. Separate pistons 18 working on a cross head 17 maintain a seal between the containers 5, 6 and die 4 during extrusion. The billets 19, 20 may be of the same cross-sectional area in which case the extrusion speeds of the two rams 11, 12 are adjusted to obtain the required proportion of metals in the bi-metal strip 21. Alternatively, the billets may have different areas whereby the rams are driven at the same speed and may be actuated or controlled by a common mechanism. The press may have its containers disposed on one side of the die or in an alternative embodiment a vertical press may have parallel containers arranged above or below the die. The billets may be of solid metal or of pressed and sintered metal powder. Other examples are given of overlay, inlay or edge-lay bi-metal strip formed of silver and steel, silver and phosphor bronze or silver and cadmium. One of the layers may be discontinuous.
Patent GB-1176829-A (GB)
Title: Papermaking Method and Apparatus.
Inventor: LEE CHARLES ALLEN
IPC: D21F5/02
Filed: 1967-05-23
Abstract: 1,176,829. Drying paper webs. INTERNATIONAL PAPER CO. 23 May, 1967, No. 23880/67. Heading F4G. In a paper web drier, the pockets 64, 66 - - - 74 formed between internally heated cylinders 10, 12 - - - 24, upper and lower drier fabrics 28, 46 and fabric guide rolls 32, 34 38, 40, 48, 50, 52 and 56 are respectively ventilated by heated air passing from nozzles 76, 78 - - - 88 at sufficient velocity to pass through the fabric. Each nozzle is supplied with air from a blower 88 through a duct 90 (only one blower and duct are shown) and the nozzles are formed by bifurcated ends of the ducts which terminate in elongated slots extending ove a substantial portion of the width of the web and having baffles therein to give a component of motion towards the sides of the webs. The nozzles of each duct are mounted adjacent but spaced from the fabric guide rolls. The air velocity from the nozzles is stated to be of the order of 50 ft./sec., at a rate of 250 cubic feet/ minute/lineal foot of fabric width and the air permeability of the drier fabric is substantial.