baber/WOPTO huggingface dataset:
Patent GB-914893-A (GB)
Title: A new gibberellin and its derivatives and process for its production
Inventor: CROSS BRIAN EDWARD
IPC: A01N45/00
Filed: 1960-02-09
Abstract: The invention comprises the compound of the formula below, named gibberellin A7, and its salts and esters:-  <FORM:0914893/IV (b)/1> Gibberellin A7 is prepared by cultivating an active strain of Gibberella fujikuroi in an aqueous nutrient medium, and after the active growth of fungus has ceased, adjusting the pH of the medium to, and maintaining it at, a value of 5-9; or by cultivating said active strain in an aqueous nutrient medium in which the initial concentration of the carbon source is 20-45% w/v glucose monohydrate or its equivalent carbon content.  The methyl ester of gibberellin A7 is prepared by esterifying the acid with diazomethane; the O-acetyl derivative is prepared using acetic anhydride; the ammonium and sodium salts are prepared from the corresponding hydroxides, and the calcium salt from calcium carbonate.  Specification 783,611 is referred to.ALSO:The invention comprises plant growth promoting compositions containing the compound of formula <FORM:0914893/I/1> named gibberellin A7, or a salt or ester thereof (see Group IV(b)), and a carrier or diluent therefor.  The compositions may be liquid, such as aqueous or non-aqueous solutions or suspensions which may contain surface-active agents; or solid, such as tablets, powders or granules, which may also contain fertilisers, pesticides and/or antifungal agents.  Specification 783,611 is referred to.
Patent GB-336532-A (GB)
Title: Improved method and means for stripping chromium plating
IPC: C25F5/00
Filed: 1930-02-11
Abstract: 336,532. Ternstedt Manufacturing Co., (Assignees of McCullough, J. F.). March 6, 1929, [Convention date]. Metals, removing.-Chromium plating is removed from articles by treatment as anodes in an aqueous solution of organic acid which is a good conductor and is capable of reducing chromium in solution from the hexavalent to the trivalent state. Solutions of polycarboxylic acids, especially oxalic, tartaric and citric acids are suitable, e.g. a solution of 60-120 gms. oxalic acid in 1 litre of water. A voltage of 12 and temperature 77-85‹ F. are employed. A nickel surface from which chromium has been stripped by this method is not passive and may receive a fresh coating of chromium.
Patent GB-1497715-A (GB)
Title: Shutter control circuit
IPC: G03B7/083
Filed: 1975-02-03
Abstract: 1497715 Camera shutter control ASAHI KOGAKU KOGYO KK 3 Feb 1975 [4 Feb 1974] 4582/75 Heading G2A A shutter control circuit for SLR cameras comprises a photodiode 1 having an output which varies rectilinearly with the logarithm of incident light under open circuit conditions, a memory switch 5 which connects the photodiode 1 to a memory capacitor 8 until just before shutter opening, a timing switch 9 for connecting a voltage source 10, 11 to the memory capacitor 8 upon shutter opening, said source providing an exponentially increasing voltage, and a high impedance buffer amplifier 13, 14 connected between the memory switch 5 and capacitor 8 to provide a shutter control signal. As shown, the signal controls a trigger circuit 16  for a shutter closing electromagnet (not shown). Diaphragm aperture and film speed are set by resistors 2, 3. A meter 15 indicates the value memorized by capacitor 8.
Patent GB-564429-A (GB)
Title: New or improved electricity generating plant, particularly adapted for use in train control systems
IPC: B60R16/03
Filed: 1943-03-22
Abstract: 564,429. Driving dynamo - electric machines. BOUND, A. F., and RANKIN, A. March 22, 1943, No. 4612. [Class 35] [Also in Group XXVIII] A slow speed multi-polar alternator m, which may be of the permanent magnet type, adapted for fitting on a railway vehicle for supplying an output for operating cab-signalling lamps, indicators, relays of an automatic train control system and like small pieces of electrical equipment, is driven by an oscillating cylinder vacuum motor j, the vacuum being created by an ejector a supplied with steam or air pressure from a source on the vehicle. The alternator supplies its load through a rectifier o and a fuse o<SP>1</SP> consisting of a flash lamp bulb.
Patent GB-453600-A (GB)
Title: Improvements in and relating to alarm clocks
IPC: G04C21/20
Filed: 1935-02-13
Abstract: 453,600. Motor driving-arrangements. KINNEAR, J. E., and WYNN, W. W., 18A, Watling Street, London. Feb. 13, 1935, No. 4630. [Class 35] [See also Groups XVIII and XXXVIII] In an alarm clock, the rotation of the alarm setting spindle 1 to set the alarm actuates alarm-time indicating discs 22, 23, 24 marked with figures to represent hours and minutes so that the exact time for which the alarm has been set is indicated by the figures on the discs through apertures in the clock front. The spindle 1 also controls means for starting the synchronous motor which drives the clock. When spindle 1 is moved to the left from the position shown in the Figure, against the action of spring 59, a cam 53 meets a cam 54. If now the spindle is rotated, an arm 56 rigid with cam 54 is rocked to the left against its spring 58 and rotates clockwise a lever 61 about whose pivot spindle is coiled a spring with an extension 64 engaging a wheel 65 on the spindle of the synchronous motor. An offset 63 on the lever 61 stresses spring 64 and when arm 56 wipes free of lever 61 the spring 64 gives the wheel 65 a starting flick.
Patent GB-967383-A (GB)
Title: Heating appliance optionally fired by solid fuel or by oil
Inventor: FLOEGEL ERNST
IPC: F24C1/06
Filed: 1961-02-08
Abstract: 967,383. Convertible solid fuel and oil stoves. FRANK'SCHE EISENWERKE A.G. Feb. 8, 1961, No. 4637/61. Heading F4W. A stove is designed to operate on either oil or solid fuel. Fig. 1 shows a stove adapted for oil burning wherein an oil supply pipe 10 feeds a burner pot 7 which is held in position against the bottom 5 of the heating chamber 3 by a member 8 operated by a handle 9. To convert the stove to solid fuel heating the supply pipe 10 is disconnected, the pressure exerted by the member 8 is released and the burner pot is removed. As shown in Fig. 2, a unit is then inserted comprising a casing 12, a frame 16 supporting a circular grate 17 provided with a shaking device, and an ash pan 18. The unit has a door provided with an air-regulating device. A fire basket 19 comprising two or more parts is provided above the grate to which fuel may be added on removal of a cover 20.
Patent GB-1074104-A (GB)
Title: Improvements in or relating to an electronic timepiece
Inventor: BENNETT WILLIAM OGLE
IPC: G04C3/10
Filed: 1966-02-02
Abstract: 1,074,104. Ratchet gearing. BULOVA WATCH CO. Inc. Feb. 2, 1966, No. 4686/66. Heading F2Q. [Also in Division G3] An electronic time-piece having a motion transformer 13 converting the vibratory motion of a tuning fork (10), Fig. 1 (not shown), into rotary motion of a gear train (11) comprises an index finger F attached at one end to a post (20) fixed to a tine 14B of the fork, a ratchet wheel W turned by the engagement of the other end of the finger with the ratchet wheel teeth, the wheel being coupled to the gear train by a pinion (22) and a stress-limiter SL1-SL6, Figs. 5-10A, B, C (not shown), to restrict the bending of the finger caused by an applied shock. The finger F comprises a light leaf-spring, a lip 21 of which carries a precious or semiprecious stone such as sapphire. An auxiliary pawl 23 engages the ratchet wheel W, its position of engagement being adjusted by a cam member 25 and a pivoted arm 24. A tapered pin (28), Fig. 3A (not shown), holds the finger F in the post (20) but the finger could be riveted or welded in position. In order to prevent an applied shock bending the finger beyond its elastic limit and thereby disengaging the finger from the wheel, several forms of stress limiter may be used such as the nose-shaped members (SL1) or (SL2) of Figs. 5 or 6 (not shown), the curved bars (SL3) or (SL4) of Figs. 7 or 8 (not shown) or the pillar (SL5) of Fig. 9 (not shown). A preferred form of stress limiter, however, is the nearly straight rigid bar (SL6) of Figs. 10A, 10B, 10C (not shown). The stress limiters prevent the radius of curvature of the finger at its point of contact with the post (20) being reduced sufficiently to bend the finger beyond its elastic limit.
Patent GB-1473475-A (GB)
Title: Locks
IPC: E05B63/12
Filed: 1975-02-04
Abstract: 1473475 Locks IDEAL SECURITY HARDWARE CORP 4 Feb 1975 [6 June 1974 6 Nov 1974] 4706/75 Heading E2A A lock comprises a housing 6 for mounting on a door 1 and a strike 19 for mounting on a door frame 2; the housing 6 has a nose portion 17 provided with a pair of vertically spaced notches 18 and the strike 19 has a pair of vertically spaced lugs 22 positioned to be received in the respective notches 18 when the door I is closed, and a bolt 24 is mounted in the housing 6 for movement in a generally vertical direction, the bolt 24 including a pair of vertically spaced arms 26 and a pair of axially aligned portions 27 for movement into and out of apertures 23 in the lugs 22 when the door I is closed. The bolt 24 is urged towards its fastening position with the lugs 22 engaged in apertures 23 by a spring 32 and the bolt 24 is releasably held in its fastening position by a retainer member 34 having a head 36 which slidably engages a hub 38 integrally formed with the housing 6, and is urged theretowards by a spring 40. The retainer member 34 is retractable by one or other of a pair of cams 41 being rotated to move a cam follower 55 against the bias of a spring 56 and the cams 41 are respectively operable by a handle 43 on the inner surface of the door 1 or a cylinder lock mechanism 51 on the exterior of the door 1. A safety locking member 58 includes a lug portion 60 receivable within a notch 61 to hold the bolt 24 against movement away from its fastened position be either the handle 43 or lock mechanism 51. The member 58 has secured thereto a leaf spring 62 formed to provide a detent that is receivable selectively in a pair of notches 63 in the housing 6 to releasably hold the member 58 in a locking or unlocking position relative to the bolt 24. The bolt 24 is releasably held in its unfastened position by an actuator lever 64 having an end portion 72, which engages the strike 19 upon final closing movement of the door 1 to move the lever 64 to disengage a hook portion 67 of the lever 64 from a recess 69 in the bolt 24 to allow the bolt 24 to move to its fastening position. In the embodiment of Figures 7, 8 which embodiment is the subject of the claims the bolt 24' has two notches 61', 74 whereby the lug portion 60 of locking member 58 may hold the bolt 24' in its fastened or unfastened position.
Patent GB-547470-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1941-04-10
Abstract: 547,470. Electric cables. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and HUNTER, P. V. April 10, 1941, No. 4798. [Class 36] A cable with the insulation impregnated with a liquid, such as mineral oil or compound, and enclosed in a sheath, the body of the cable is built up of solid parts which fit together closely to leave a minimum space for the impregnant and give the body a non- circular cross-section, and the sheath consists of a strip of elastic metal, such as steel, iron, bronze or hard copper, wrapped closely round the body and connected at the seam as by welding. In Fig. 2, the stranded conductor 1 and layers of impregnated paper 2 are surrounded by a helical wrapping 3 of perforated metallized paper or other screening material, about which are placed packing members 4 to give an approximately triangular section ; members 4 may be of jute strings impregnated with oil or compound and are pressed tightly together and on to the wrapping 3 by the sheath 5 comprising a strip of elastic metal wrapped round the composite body longitudinally and having its flanged edges 6 connected by brazing metal 7. In Fig. 3, the sheath comprises a strip of metal wound helically and with its flanged edges 6 welded or brazed, the strip having two corrugations 8 parallel to its length. In Fig. 6, the cable comprises three cores as in Fig. 1 (not shown) laid together helically, and with a further packing member 4 in the central space.
Patent GB-1024621-A (GB)
Title: Improvements in or relating to apparatus for retreading pneumatic tyres
Inventor: HORNE CHARLES ARTHUR
IPC: B29D30/54
Filed: 1962-02-08
Abstract: 1,024,621. Retreating pneumatic tyres. DUNLOP RUBBER CO. Ltd. Jan. 25, 1963 [Feb. 8, 1962], No. 4815/62. Heading B5A. In apparatus for retreading pneumatic tyres the bead-setting rings 14 are located on cylindrical supporting members 10 and 11 by depending pins 17 and studs 18 which pass through slots in the members 10 and 11. The rings are adjustable towards and away from each other and are secured by locking 19 which engage the studs 18.
Patent GB-782639-A (GB)
Title: Dispensing means for containers
IPC: B05B11/04
Filed: 1956-02-16
Abstract: 782,639. Container closures. PIRELLI SOC. PER AZIONI. Feb. 16, 1956 [July 19, 1955], No. 4859/56. Class 125(3). [Also in Group XXIX] A dispensing stopper arrangement 3 of resilient material such as polyethylene for a container 1, having an upstanding rim 2, has a flanged rim 4, a reduced portion 5 with a plurality of circumferential ribs and a lower frusto-conical section 6 across which extends a web 7 with orifice 8, the distance between flange 4 and section 6 being slightly less than the depth of rim 2 so that the insert 3 clampingly engages the rim 2 and the ribs 5 press against the rim wall to form a, seal. The insert has attached thereto, by a flexible strip 12, a closure plug with head 9, body 10 and rib 11 which engages a groove in the insert. In a modification, Fig. 5, the nozzle 13 is formed for delivery as a spray through orifice 15 and has an integrally moulded cap 21 attached thereto by a strip 20.
Patent GB-114475-A (GB)
Title: Improved Manufacture of Electric Storage Battery Plates and the Paste therefor.
Inventor: WADE HAROLD
IPC: H01M4/20
Filed: 1917-04-04
Abstract: 114,475. Wade, H., (Flanders, L. H.). April 4, 1917. Electrodes.-Active material for storage battery plates is prepared by adding strong sulphuric acid to a paste of lead oxide and water. The electrodes after being coated with the active material are immersed in a sulphating fluid such as a dilute solution of ammonium sulphate or sulphuric acid. In one example, 427 c.c. sulphuric acid of specific gravity 1.400 are added to a mixture of 20 lb. litharge and 800 c.c. water. The pasted electrodes are immersed for twenty-four hours in 20,000 c.c. sulphuric acid of specific gravity 1.250. In another example, 32 c.c. sulphuric acid of specific gravity '1.400 are added to a mixture of 1 lb. lead oxide with 433 c.c. water.
Patent GB-1386074-A (GB)
Title: Rotary regenerative heat exchanger
IPC: F28D19/04
Filed: 1971-02-18
Abstract: 1386074 Thermal regenerators LEYLAND GAS TURBINES Ltd 15 May 1972 [18 Feb 1971] 4908/71 Addition to 1307365 Heading F4K The sealing arrangement described in Specification 1,307,365, is modified to eliminate tipping of the matrix 3 produced by excess compressor pressure P20, Fig. 1 and excess turbine outlet pressure P17 and arising because of the particular type of bearings employed for the matrix and because of the working clearance required in practice in the bearings. The modification comprises providing mechanical biasing means bearing directly upon the matrix and these act also to produce a resultant force on the matrix acting in a direction towards seals 10 on the higher temperature end face of the matrix. Fig. 4 shows one biasing means comprising a pad 24 biased by a spring 23. Fig. 5 shows another such means used alternatively or additionally to that of Fig. 4, and comprising a pad 26 biased by a fluid operable piston 27. Such fluid may comprise either of the heat exchanging fluids or it may be derived from an independent source.
Patent GB-638200-A (GB)
Title: Improvements in furniture
IPC: A47C5/12
Filed: 1949-02-23
Abstract: 638,200. Furniture frames. LAMB, C. C. Feb. 23, 1949, No. 4945. [Class 52 (ii)] A chair &c. is constructed by moulding, pressing or like operation from a single sheet of metal, plywood, or plastic, &c. so that identical chairs &c. may be stacked. As shown in Fig. 1, the chair comprises a back 1. seat 2 and rear and front legs 3, 4 together with arms 5 if desired. The front part of the seat 2 is bent downwardly and gapped at 6 to form front-legs 4 and apron 4a. The rear legs 3 are formed, from marginal strips of the seat 2 and form an extension of the back 1 while the arms 5 are bent up from strips forming margins of the back 1. The spacing between the rear legs 3 is somewhat greater than the overall width of the seat 2 and front legs 4 while the spacing between the arms 5 is somewhat greater than the overall width of the rear legs 3 so that identical chairs may be stacked. One of the arms 5 may be formed as a table if desired. Fig. 5 shows a chair also suitable for stacking in which the front and rear legs, arms and cross members 7 form side frames for the chair, the members 7 being curved to serve as rockers.
Patent GB-1378343-A (GB)
Title: Ships stern tube bearing lubrication systems
IPC: B63H23/36
Filed: 1973-04-12
Abstract: 1378343 Stern tube bearing lubrication J KUIKEN 12 April 1973 [3 Feb 1972] 5012/72 Heading B7S [Also in Division F2]  In combination with and connected to a ship's stern tube bearing lubrication system, a fluid pressure transmitter-controller establishes and automatically maintains a predetermined constant differential between the pressure of the water on the outboard side of the stern shaft outboard seal 2 and of the stern tube 1 bearing lubricant on the bearing side of the seal. The fluid pressure transmitter-controller comprises at least one flexible diaphragm such as 10 or 11 secured fluid-tight between a primary 6 and a secondary 7 diaphragm housing whereby the primary housing communicates through pipe 27 with the outboard water and the secondary housing communicates through pipe 26 with the stern tube lubricant. Spindle 12 has one end secured fluid-tight to the centre of the diaphragm so that the spindle and diaphragm assembly is allowed restricted reciprocal movement, lever 16 and rod 20 arrangement transmits a force from adjustable spring 17 to the spindle and on to the diaphragm to produce the fluid pressure differential required. In Fig. 2 (not shown) the pressure differential required is produced by pump 30.
Patent GB-655779-A (GB)
Title: Improvements in methods of and apparatus for the treatment of textile materials withliquids or gases
Inventor: ILLINGWORTH NORMAN
IPC: D06B5/00
Filed: 1948-02-20
Abstract: <PICT:0655779/IV (c)/1> <PICT:0655779/IV (c)/2> An apparatus for treating textile materials with liquids or gases, comprises a fixed jacketed vessel 1 adapted to be sealed, outlet means 17 for draining liquids and for removing gases therefrom, a permeable container 8 rotatable within said jacketed vessel about a substantially horizontal axis and an inlet pipe 7 for liquids and gases arranged substantially horizontally within said permeable container with openings 24 in the wall thereof to enable liquids or gases passing into the container through said inlet tube to impinge on materials in the container.  The inlet pipe is divided longitudinally by 21 to admit either liquids or gases to the container.  Gases may be withdrawn from the container and the pressure thus reduced through 19 connected to a pump.  By means of the apparatus textile materials may be subjected to a plurality of treatments with different liquids or gases in succession without handling them between the treatments.
Patent GB-539796-A (GB)
Title: Improvements in or relating to hoods (e.g. weather hoods) for boats
IPC: B63C9/02
Filed: 1940-03-19
Abstract: 539,796. Weather hoods for boats. FLEMING, I. R., and FLEMING, F. E. March 19, 1940, No. 5061. [Class 113 (i)] Weather hoods for ships' lifeboats &c. are supported by a fore- and-aft spine member 22, to which lateral members such as ropes are attached, e.g. spliced, these members being either attached directly to the gunwales or to gunwale uprights 20. The spine member 22 is supported by central uprights stepped into the thwarts or the bottom of boat. The hood may be in two parts, including the curtains 41 which may be rolled up on the gunwales.
Patent GB-761263-A (GB)
Title: Improvements in respiratory masks
Inventor: STANLEY FREDERIC REGINALD
IPC: A62B18/02
Filed: 1954-02-22
Abstract: 761,263. Respiratory apparatus. MARTINDALE ELECTRIC CO., Ltd. Jan. 31, 1955 [Feb. 22, 1954], No. 5093/54. Class 81(2) A respiratory mask which fits over the nose and mouth of the wearer is formed of flexible plastic material having a deformable non- resilient metal element moulded into the plastic material around the whole of its peripheral edge to enable the edge of the mask to be bent to conform to the contours of the wearer's face and retained in the form into which it is bent. The mask is in the form of an isosceles triangle in vertical cross-section, is made of polythene and its edge 7 is provided with a bead 6 in which a helical wire 8 of deformable resilient metal is embedded. Disc-type non-return expiratory valves 10 are provided. A filter container 12 in the form of an equilateral triangle with the apex uppermost is made integral with the mask and is provided with a perforated lid 13. Ribs 15, 17, formed inside and integral with the rear wall of the filter container 12 and the lid 13 respectively, form, between them and the faces of a filter pad (not shown), passages by which air can pass readily to the filter pad and thence to an inspiratory opening 11 controlled by a non-return valve 11a. In a modification, the filter container is detachable from the mask, a complementary socket and recess being provided in the filter container and the mask respectively. Alternatively the mask may be connected to a separate filter unit by a flexible tube. The mask may be used without a filter unit for the administration of anµsthetics. According to the Provisional Specification, the ends of the wire may project slightly from the edge of the mask to hold a detachable fabric covering against the mouth of the mask.
Patent GB-562742-A (GB)
Title: Improvements in and relating to tap changing switches
IPC: H01H9/00
Filed: 1943-03-31
Abstract: 562,742. Transformers; regulating switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 31, 1943, No. 5150. Convention date, April 3, 1942. [Class 38 (ii)] [Also in Group XXXVII] A tap-changing switch for transformers, reactors, &c. comprises two movable contacts 7, 8 normally on the same tap and connected with each other through the winding of a solenoid 10, the plunger of the latter being coupled to the contact 8 so that when contact 7 is moved to an adjacent tap the solenoid becomes energized by the inter-tap voltage and operates to cause follow-up movement of the contact 8. The characteristic of the tap-changing circuit may be modified by connecting an impedance 13, which may be a resistance, reactance, or condenser, in series with the solenoid winding.