baber/WOPTO huggingface dataset:
Patent GB-697567-A (GB)
Title: An improved centring and adjusting apparatus for internal brakes, having a self-reinforcing or servo-action, for motor vehicles
IPC: F16D65/46
Filed: 1951-09-20
Abstract: 697,567. Internal shoe-drum brakes. DEUTSCHE PERROT-BREMSE GES. Sept. 20, 1951 [Sept. 20, 1950], No. 22076/51. Class 103 (i). In a centring and adjusting device by means of which the brake thrust is transmitted from one shoe to another in an internal shoe drum brake of the type comprising an adjusting nut 4 having a right- and left-handed thread engaging screws 5 and 6 bearing on the shoe ends, the nut 4 is mounted so as to rotate within a preferably cylindrical casing 3 secured to the brake anchor plate 1, the casing 3 enclosing and protecting a compression spring 9 which resiliently resists movement of the nut by thrust from one shoe against the other. The thrust is applied to the spring by collars 12 acting through sleeve elements 7, outward movement of which is limited by rings 10 in the casing 3. An opening 14 with cover 15 is provided in the anchor plate 1 for rotating toothed wheel 13 secured to the nut 4. The casing 3 may be slidably adjusted in a slot 2 in the anchor plate 1.
Patent GB-165677-A (GB)
Title: Improvements in receptacles for stamp pads and accessories
IPC: B41K1/54
Filed: 1920-07-23
Abstract: 165,677. Sculthorp, G. H. July 23, 1920. Inking-apparatus. - A box b for containing a rubber or other stamp pad a is longer than the pad, the extra space forming a compartment for a type-cleaning brush c. The extra space may be divided by fixed or removable partitions into a number of compartments which may contain other accessories, e.g. a bottle nf ink. The brush may be fixed in the box. A lid d covers the pad and extra space.
Patent GB-420246-A (GB)
Title: Improvements in ring burners for use with gas or oil cookers
IPC: F23D14/70
Filed: 1934-01-30
Abstract: 420,246. Gas burners. STAUNTON, P. M., Aram Lodge, Castlerea, Co. Roscommon, Irish Free State. Jan. 30, 1934, No. 22123/33. [Class 75 (i)] A disc-shaped baffle A adapted to be mounted over a gas or vapour ring-burner to direct air passing upwardly through the ring against the base of the flames, is provided with fingers B for engaging the ring or with a central screwed stem for attachment to the top plate of a stove or other support. The fingers may be connected by screws to the baffle so that the latter may be adjusted. The under surface of the baffle may be concave, convex or flat, and the baffle may be provided with apertures to permit air to pass to the upper side.
Patent GB-682732-A (GB)
Title: Improvements relating to the combustion equipment of rocket motors
Inventor: ALLEN SIDNEY
IPC: F02K9/56
Filed: 1950-09-08
Abstract: 682,732. Generating combustion products under pressure. ARMSTRONG SIDDELEY MOTORS, Ltd. July 16, 1951 [Sept. 8, 1950], No. 22156/50. Class 51 (i) [Also in Group XXVI] A combustion chamber for a rocket in which one of the propellants is circulated through a jacket surrounding the combustion chamber before entering it has the jacket connected to a pressure responsive dump valve which is biased to the open position and closed by a pressure which is available only while the motor is operating. One of the propellants from a reservoir 20 is passed through a pump 21 and a conduit 14 to the jacket 13 surrounding the combustion chamber 11. This propellant leaves the jacket 13 through a conduit 15 and passes through a check valve 16 to a sprayer 17. The other propellant is delivered to the sprayer 17 by a conduit 18. A dump valve 24, connected to the jacket 13, has a vent 27 which is connected to the jacket when the valve member 28 is raised off its seating 29 by a spring 30 acting on a plunger 31. When the pump 21 is started up, pressure is applied to the plunger 31 and closes the valve member 28 as long as the motor is operating. Liquid oxygen and a mixture of methyl alcohol and water are stated to be suitable propellants.
Patent GB-1222831-A (GB)
Title: A flooring unit
Inventor: COOMBS WILLIAM CHARLES
IPC: E04F15/06
Filed: 1967-05-12
Abstract: 1,222,831. Flooring unit. W. C. COOMBS. 10 May, 1968 [12 May, 1967], No. 22234/67. Heading E1B. A flooring unit comprises at least one upstanding member 2 which is integrally formed with the whole of a platform 3 the upper face of which has a durable non-slip composition 7 fixed thereto, for example as a single layer, Fig. 1 (not shown) or a series of separate strips in dovetail grooves 8, the or each upstanding member supporting the platform 3 above a base by a distance which is greater than the thickness of the platform. The non- slip composition may be an epoxy resin containing an abrasive mixture such as sand or calcined bauxite and may include pigments. The non-slip composition may be applied in liquid form and cured in situ or may be preformed and fixed to the platform by adhesive. Several units may be joined by dovetail formations 5, 6 and may be surrounded by a boundary bar 9, Fig. 2 (not shown).
Patent GB-517400-A (GB)
Title: Improvements in and relating to de-icing attachment for airplane propellers
IPC: B64D15/16
Filed: 1938-07-26
Abstract: 517,400. Screw propellers. CLAY, W. C. July 26, 1938, No. 22252. [Class 114] A de-icing attachment for aeronautical screw propellers comprises an annular trough of lesser diameter than the propeller hub and fitted in close contact with the back surface of the hub, and from the periphery of the trough conduits extend outwardly to the propeller blade. A trough ring 15 is secured to the back of the hub 8 and centralized by a collar 6. It receives a supply of de-icing fluid through a nozzle 18 and pipe connection 16. The. trough has at its periphery tubular outlets 25 which are connected to brackets 26 held in place by the boss bolts 12. Each bracket 26 has a screwed boss with union nut 29 which holds the blade supply pipe 28. Bracing pieces 24 also connect the trough with the bracket 26. Instead of the trough being secured to the hub by 'screws, it may itself have a threaded central boss which is threaded on the collar 6.
Patent GB-1220128-A (GB)
Title: Improvements in or relating to polarisation changing arrays for electromagnetic waves
IPC: H01Q15/24
Filed: 1968-05-10
Abstract: 1,220,128. Aerials. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 10 May, 1968 [16 May, 1967], No. 22318/68. Heading H4A. An electromagnetic wave transmission-type polarizer comprises a plurality of polarization changing cells, placed one behind the other. The cells are of known type, each consisting of two arrays of parallel wires, placed one behind the other. In such a cell, the field component of the wave perpendicular to the wires is transmitted unchanged, but the component parallel to the wires is partially transmitted and partially reflected by each array and, in consequence, a differential phase shift is effected between the two components. By suitable choice of dimensions, the net reflection from a cell may be made substantially zero, so that it is matched. It is stated that the use of a plurality of cells provides a greater bandwidth than with a single cell. The total differential phase shift may be #/2, and this may be achieved with two cells each having a phase shift of #/4.
Patent GB-587605-A (GB)
Title: Improvements relating to knitting machines
IPC: D04B9/46
Filed: 1944-11-14
Abstract: 587,605. Knitting-machines. BRAY & SONS, Ltd., A., SHORT, T. C., and PAINTER, J. H. Nov. 14, 1944, No. 22417. [Class 74 (ii)] The needle-selecting pattern wheel of a circular machine is driven under the control of a two-level cam surface of the main cam drum, and separate means are provided for disconnecting its drive only when the pattern wheel is in a predetermined angular position. The pattern wheel 11 remains in this position until the main cam drum 15 demands it shall be driven. The pattern wheel carries peripheral ratchet teeth 12, by which it is driven by a pawl 13 on a reciprocable bar 14, controlled by the main cam drum 15, which has a high-level cam strip 16. The pattern wheel, which has on one side holes in which studs 31 for selection of the needles can be placed, has a ring cam 30 on the opposite side of the studs having a gap 32. The pattern wheel with the ratchet and pawl mechanism, coacts with a spring-pressed arm 22, at the end of which is a U-shaped piece 29, carried by a rod 17 which is movable to different positions by the two-level cam surfaces. In the low-level position of the rod the arm is inoperative, but when the rod is moved to the high-level position the ring cam holds the arm until, when the pattern wheel reaches a predetermined angular position, the spring forces the arm through the gap in the ring cam to raise the pawl and thus disconnect the drive, the arm remaining in this position until the rod returns to the low-level position and the arm to the inoperative position.
Patent GB-1128877-A (GB)
Title: Furnace wall structure
IPC: F27D1/14
Filed: 1967-05-15
Abstract: 1,128,877. Suspended furnace roof structures. BABCOCK & WILCOX CO. 15 May, 1967 [19 May, 1966], No. 22421/67. Heading F4B. A hanger 12 for supporting bricks 10 in a furnace roof comprises a flat metal plate having a plurality of integral tooth-like projections 18 extending normally outwards from both sides of the plate, the projections being arranged in longitudinally spaced groups wherein each group includes two transverse series of projections. The hangers 12 are suspended from horizontal metal cross-bars 14 by metal hook support members 16 which are received in flanged holes 20 formed in the upper portion of each hanger 12. All joints between the bricks 10 are mortared. The angle of inclination which each transverse series of projections 18 makes with the longitudinal axis of the hanger 12 may be varied (see Figs. 3-5). A vertical slot may be provided between each group of projections.
Patent GB-1344370-A (GB)
Title: Loudspeaker cabinet
IPC: H04R1/26
Filed: 1971-04-19
Abstract: 1344370 Loud-speaker cabinets PIONEER ELECTRONIC CORP 19 April 1971 [27 Feb 1970] 22527/71 Headings H4X and H4J A loud-speaker cabinet suitable for use as an infinite baffle type and as a phase inverting type includes a wall 15 apertured at 151 above its mid point to receive a loud-speaker 16 and arranged to be readily inverted to position the loud-speaker adjacent a duct 14, used for venting the cabinet in the phase inverting mode, so that sound absorbent material 181, 182 on walls 11, 12 and on a baffle 19 prevent intermediate and high frequency sounds being reflected through the duct. In the infinite baffle mode the wall 15 is orientated as shown and the outer end of duct 141 is sealed by a removable closure 20. In the phase inverting mode (Fig. 2, not shown) intermediate and high frequency speakers may be positioned above the main speaker.
Patent GB-622234-A (GB)
Title: Improvements in or relating to pressure-operated relief valves
IPC: F16K17/04
Filed: 1946-07-30
Abstract: 622,234. Relief valves. KEELAVITE CO., Ltd., and CHITTENDEN, G. E. July 30, 1946, No. 22606. [Class 135] In a pressure relief valve, a hollow, spring- loaded closure member F is opened in a direction opposite to that of the resulting fluid flow through the relief port E<SP>2</SP>, by the pressure of the fluid in the inlet chamber B acting on an annular pressure area L. A deflecting member J extends from the outlet chamber C through the relief port and into the bore of the closure member, a small clearance being provided between these two members. The bore of the closure member communicates through a passage F<SP>2</SP> with the space above the closure member and through a passage in the deflecting member with a point in the outlet chamber substantially out of the path of fluid flow. This construction is stated to reduce valve chatter, and to ensure that the valve closes at the desired pressure irrespective of the rate of fluid flow.
Patent GB-372641-A (GB)
Title: Apparatus for the destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1931-08-10
Abstract: Relates to destructive hydrogenation of coal, oil, or coal-oil mixtures in the pressure space of a hydraulically operated piston, as described in Specification 369,798.  The initial material is forced, e.g. at 200 atm., through a hollow shaft 15 past a spring-loaded valve 19 into the reaction space 8.  Heated hydrogenating gas is passed in at 400 atm. pressure through a passage 10.  The piston is then moved to the left, compressing the reactants to 1000 atm. or more; it may remain in the end position for several minutes until reaction is complete.  Rotation of the worm 14 then removes pasty residues through passages 17, 18, to a receiver 37.  Gaseous and vaporous products pass through a passage 22 to pipe 23, and to condensers; the non-condensible gases pass on to a heater and are mixed with hydrogen and returned to the reaction space.  The reaction cylinder may be lined with chrome-nickel steel, which has a catalytic effect; and the piston may be water-cooled.  The feeding <PICT:0372641/III/1> <PICT:0372641/III/2> of oil &c. to the reaction space is effected by a hollow piston 24, Fig. 3a, moved to the right by pumping water into the space 29, and retracted by a chain 27 and weights 28.  With the piston p  in the retracted position oil is fed in through an opening 25 which is then closed.  By moving the piston to the right oil is forced down the hollow shaft 30 past a spring-loaded valve 31 into the shaft 15 and thus into the reaction space.
Patent GB-158597-A (GB)
Title: An improved method of propelling vessels through water and simplifying the machinery for that purpose, using a new type of propelling device
IPC: B63H16/04
Filed: 1919-09-15
Abstract: 158,597. Chick, P. Sept. 15, 1916. Propelling, steering, and manoeuvring by re. ciprocating pistons and plates.-A pair of folding blades k are reciprocated in the water by means of a rod m projecting through the stern of the vessel b. The blades are hinged to one arm of a cruciform structure n so that they are free to open and abut against the other arm during the outward stroke of the rod m. A similar device may be provided in the bow of the vessel. The Provisional Specification describes also an apparatus in which the vessel is propelled by a piston reciprocated in a cylinder open at one end to the sea. The piston is forced outwards by pressure fluid between it and the closed end of the cylinder, and returned by the pressure of the water.
Patent GB-896412-A (GB)
Title: Improvements in or relating to magnetic record carriers
Inventor: ARCHER JOHN
IPC: G11B5/74
Filed: 1957-07-17
Abstract: 896,412. Magnetic sheet records. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 9, 1958 [July 17, 1957], No. 22654/57. Class 40 (2). A magnetic record comprises a hard (i.e. cardboard) backing 7, a resilient (i.e. blotting paper) layer 6, a sheet of magnetic recording material as used for magnetic tapes 5 and a number of guide strips 2, preferably of celluloid, assembled by straight lines of machine stitching 4 so that gaps 1 are left between the guides 2, the exposed strips of the sheet 5 being available for magnetic recording and/or playback. The upstanding parts 8 of the stitches 4 act as guide rails for a record/playback head 9, while the resilience of the layer 6, together with the pliability, of the thin layer 5, enable the polepiece 10 to make consistent contact with the record surface. The curvature of the strips 2 (shown exaggerated in Fig. 3) arisirigfrom the single central line-fixing of the strips results in a reduced groove-jumping by the head, particularly with worn records. The use of sheet material for the layer 5 provides a preferred orientation of the magnetic material with consequent improvement in noise performance.
Patent GB-665793-A (GB)
Title: Direct current generators
IPC: H02K23/66
Filed: 1949-09-01
Abstract: 665,793. Exciting dynamo-electric machines. ZANNONI, L. Sept. 1, 1949 [Sept. 3, 1948], No. 22715/49. Class 35. In an armaturereaction excited D.C. generator, the primary axis is excited by field coils 1, whilst the secondary armaturereaction excited axis is energized by polyphase armature currents of suitable phase flowing between tapping-points on the armature winding and an external circuit. In the form shown, the polyphase tappings on the armature winding 2 are connected through slip-rings 6, 7, 8 to condensers 9, 10, 11 which induce resonance currents in the armature winding, thus creating a secondary axis flux in quadrature with the primary flux produced by the exciting field coils 1. The load current from the brushes 4, 5 is passed through compensating windings in the usual way. In a modification, the effective value of the condensers may be varied by means of a variable-ratio transformer. The resonance may be modified by making the circuit slightly capacitative so that the leading current pro. duced assists the primary excitation. In a further modified form, the exciting winding 1 is dispensed with and the armature is supplied with polyphase current through condensers by an alternator on the same shaft, either directly through slip-rings or, if it is desired to use a reduced size of alternator, by energizing the armature winding by an inductively-coupled winding fed by connections along the rotor shaft to the alternator.
Patent GB-961740-A (GB)
Title: Improvements relating to bow steering installations for ships
Inventor: HUTCHINS MAURICE
IPC: B63H23/26
Filed: 1962-06-13
Abstract: 961,740. Bow steering devices. STONE MANGANESE MARINE Ltd. June 13, 1963 [June 13, 1962], No. 22778/62. Heading B7V. A bow steering installation comprises a housing 5 supporting a fixed-pitch propeller 6 and enclosing an hydraulic motor (Fig. 2, not shown) arranged to drive said propeller, means 4 for supporting housing 5 in a transverse tunnel 1 in the bows of a ship, a reversible variable capacity hydraulic pump 11 mounted in the ship's hull, a prime mover arranged to drive said pump, and conduits 9, 10 joining said pump to said motor. As shown, said means 4 is a strut secured to a mounting plate 3 on the ship's hull, said strut accommodating the conduits 9, 10. The mounting plate 3 also supports cylindrical tunnel section 2 which forms part of tunnel 1. The prime mover is a constant-speed uni-directional electric motor and the hydraulic pump and motor may be either rotary or reciprocal. The quantity and direction of the output from the hydraulic pump are controlled from a manual lever through a follow-up servo device (Fig. 3, not shown). Double-helical epicyclic reduction gearing forms the drive between the propeller and the hydraulic motor. The casing for the gearing is secured to housing 5 and accommodates bearings for the propeller shaft and a seal against entry of seawater.
Patent GB-735720-A (GB)
Title: Improvements in or relating to root crop harvesters
Inventor: HENDERSON WALLACE MITCHELL
IPC: A01D33/02
Filed: 1952-09-11
Abstract: 735,720. Sorting vegetables. RANSOMES, SIMS & JEFFERIES, Ltd. Dec. 10, 1953 [Sept. 11, 1952], No. 22886/52. Class 117. A conveyer belt 4 carries root crop and stones 5 under an obliquely set rotating shaft 1 carrying sets of leather &c. arms 2 divided to form fringes at their outer ends 8. The root crop 6 is flung sideways by the arms but the heavier stones 7 deflect the arms and continue on the belt together with useless small root crop small enough to be out of the orbit of the arms 2.
Patent GB-598998-A (GB)
Title: Hydraulic device for controlling members with a predetermined automatic interdependency
IPC: F15B11/16
Filed: 1945-09-05
Abstract: 598,998. Actuating machines ; workholders. POUILLE FRERES. Sept. 5, 1945, No. 22887. Convention date, July 3, 1942. [Class 83 (iii)] [Also in Group XXIX] The tool and work clamp pistons of a machine tool are controlled by a hydraulic system to ensure a desired sequence of operations. The work clamp piston 4 first makes its upward stroke by fluid from conduit 30, this conduit being continuously connected to pressure, except for the action of valve 8. During this stroke movement of the tool piston 1 is prevented by the valve 24 closing the exhaust passage 26. When pressure builds up at the bottom of cylinder 5 valve 24 opens and piston a makes its first stroke. Distributing valve 8 is then tappet-operated to reverse fluid flow to piston 1 but the exhaust passage 19 from the cylinder 5 remains closed. At the end of the return stroke of piston 1 tappets move valve 8 to an intermediate position reversing the fluid flow to cylinder 5. Specification 598,997 is referred to.
Patent GB-641446-A (GB)
Title: Improvements in feedwater supply systems for steam boilers
Inventor: SPANNER EDWARD FRANK
IPC: F22D5/06
Filed: 1948-08-12
Abstract: 641,446. Feedwater supply systems for steam boilers. SPANNER BOILERS, Ltd. Aug. 12, 1948, No. 22961/47. [Class 123(ii)] Feedwater is continuously supplied to a boiler A in quantity slightly in excess of its requirements by a pump L, and a constant water level B is maintained in the boiler by an overflow pipe D which is controlled by an inlet valve C located at the said level B and directs the excess water through a steam trap E and discharge pipe F to the pump suction pipe J leading from the hot well K. A reducing valve G may be interposed in the pipe F. As shown, the valve C communicates with a syphon pipe N which depends within the boiler down to the feed check valve M and is provided at its upper end with a steam leak port O. In a modification, (not shown), the pipe N is of half-round cross-section and is welded to the inner surface of the boiler shell to extend between the two valves C, M.
Patent GB-1406156-A (GB)
Title: Fail-safe circuit
IPC: G08G1/16
Filed: 1973-05-15
Abstract: 1406156 Fail-safe logic circuits WESTING- HOUSE AIR BRAKE CO 15 May 1973 [1 June 1972] 22976/73 Heading H3T A fail-safe AND circuit comprises an oscillator having a frequency determining circuit associated with two voltage breakdown devices such that oscillation occurs only if the respective signals exceed a given level. The figure shows a twin-tee network oscillator having Zener diodes D18, D19 in the shunt arms so that oscillation occurs only if respective inputs 18 and 19 are both present and cause the diodes to conduct. The circuit is described as applied to a vehicle braking system in which two frequencies are transmitted from alternate stations along the route spaced a braking distance apart. If the vehicle spacing is less than this distance only one of these frequencies is received by a vehicle and the brakes are applied. In the receiver the two frequencies are rectified and provide the inputs 18 and 19.
Patent GB-880221-A (GB)
Title: Improvements in rotary liquid meters
IPC: G01F15/14
Filed: 1959-07-03
Abstract: 880,221. Rotary meters. COMPAGNIE DES COMPTEURS. July 3, 1959 [July 11, 1958; March 17, 1959], No. 23010/59. Class 110 (2). In a rotary meter of the turbine-type wherein the turbine housing 1 is east in one piece with the casing 2 or is supported on the bottom thereof, the inner wall of the casing is connected to the housing by at least two vertical ribs 3, 4 serving as partitions separating the inlet and outlet orifices. The rib 3 has a slot 18 which can be closed or varied by an adjustable shutter for leakage flow control purposes. The casing is also provided with a cruciform arrangement of ribs 7 in the bore thereof and reinforcing ribs 19. In a modification, the meter is provided with two series of additional ribs situated respectively between the ribs 3 and 4 and the inlet and outlet ports.