baber/WOPTO huggingface dataset:
Patent GB-812080-A (GB)
Title: Improvements relating to the formation of chemical coatings on metal surfaces
Inventor: KING GEORGE ROLAND
IPC: C23C22/34
Filed: 1956-07-10
Abstract: A complex fluoride coating is formed on a zirconium or zirconium-base alloy surface by treating the surface with an aqueous solution having a pH of 2-6 and containing fluoride ions in a concentration of M/8-6M and potassium ions in a concentration of M/8-2M.  The necessary acidity may be provided by hydrofluoric acid, sulphuric acid, sulphamic acid, bifluorides or bisulphates.  Up to half the potassium can be replaced by an equivalent amount of other alkali metals or ammonium.  2-valent tin, 3-valent arsenic, 5-valent vanadium and 6-valent chromium may be included in the solution, e.g. as stannous chloride, sodium arsenate, sodium vanadate and sodium chromate. Nitrate ions and zirconium may also be incorporated in the solution. The coatings are stated to serve as a base for paints and to facilitate the cold-working of the metal.
Patent GB-991608-A (GB)
Title: Process for producing a photographic silver image and photographic silver halide emulsions of increased sensitivity
IPC: G03C1/043
Filed: 1961-06-14
Abstract: 991,608. Photographic emulsions. KODAK Ltd. June 14,1961 [June 17, 1960], No. 21404/61. Heading G2C. A photographic silver halide emulsion is sensitised with an alkylene oxide polymer or a condensation product of an alkylene oxide with an organic compound containing an active hydrogen atom, and an aliphatic amine containing an alkyl or alkenyl group with at least 6 carbon atoms or a diamine containing at least 7 carbon atoms. The amines may also contain a hydroxyalhyl, an alkoxy alhyl or a halogeno-alkyl group. Specified amines include N-methylmyristylamine, N-methylmyistyl- B-hydroxy amine, cetyldimethylamine, methyloctadecen-9-glamine and laurylmethylamine and specified diamines are 2-di-n-propylaminoethylamine and 3-diethylaminopropylamine. The polymer may be added to the developer. The polymer may be obtained by polymerising ethylene, propylene or butylene oxides or by condensing such oxides with alcohols, amines, mercaptons, acids, amides, acetylenic hydrocarbons or compounds with a reactive methylene group such as diblazoylmethane. Suitable polymers are described in Specifications 380,431, 380,851, 548,019, 592,676 and 871,801. Polymers specified are polyethyleneylyed, di-(polyethylene-glycoxy)-decane, polyethylene oxide oleyl ether, polyethylene oxide oleic ester, polyethyleneoxide nomyl phenol ether, polyethyleneglycol-bis-carboglutamic acid and polyethyleneglycol-bis-butyl-urethane.
Patent GB-973075-A (GB)
Title: Improvements in sealing means for pipes and containers
IPC: F16L55/134
Filed: 1960-06-18
Abstract: 973,075. Pipe joints. R. MANTON, and T. E. DAVIS. June 14, 1961 [June 18, 1960], No. 21408/64. Divided out of 973,074. Headings F2G and F2P. [Also in Division B8] Sealing means for a pipe formed at one end thereof with an inwardly-directed annular seating 11 comprises a pair of plates 12 spaced apart by a web 13 and forming a lid, and an inflatable tube 1 adapted to engage in the seating with one of the plates on either side thereof, the tube, when inflated, sealing the end of the pipe and serving to restrain the plates against movement relative to the pipe. Releasable clamping means may be provided between the lid and the pipe.
Patent GB-845308-A (GB)
Title: Improvements in earth leakage protection systems for electrical motors, cables and other apparatus
IPC: H02H11/00
Filed: 1957-07-06
Abstract: 845,308. Protective cut-out arrangements. BALDWIN, H. T. July 7, 1958 [July 6, 1957], No.21479/57. Class 38 (5). In an earth leakage and lockout arrangement the operating coil c of a contactor C is controlled by a relay D<SP>1</SP> which is normally energized by a normally continuously firing thyratron T having its grid a energized from the secondary winding M<SP>1</SP> of a core-balance transformer M to stop the firing of the thyratron and cause the opening of the contactor when earth leakage occurs. Should the fault persist, the grid a is maintained energized by a secondary winding d<SP>3</SP> of an auxiliary transformer D through a circuit including a rectifier R<SP>1</SP>, an artificial neutral point D<SP>2</SP> and the earth fault path, to prevent the firing of the thyratron T and the reclosing of the contactor. The Provisional Specification refers to the use of a transistor in place of the thyratron. Specification 658,823 is referred to.
Patent GB-332950-A (GB)
Title: Improvements in and relating to pasteurisation or sterilisation plant
IPC: A23L3/04
Filed: 1929-03-26
Abstract: 332,950. Enock, A. Graham-, and Graham-Enock Manufacturing Co., Ltd. March 26, 1929. Divided on 332,912. Sterilizing milk.-In plant in which milk &c. in sealed bottles or containers is passed through a hot air or like dry sterilizing chamber, the bottles enter and leave the chamber through water seals. As applied to the plant described in Specification 332,949 of even date, in which bottles in cages are carried through the plant by endless chains 28, in one form, Fig. 2, the sterilizing chamber 21 is sealed by water in a preheating bath 20 and the first tank 22 of a series of cooling tanks, the bottles being inserted and removed from the cages at the same end A of the plant. In another form, Fig. 3, the bottles are inserted on to the cages at the end A and removed at the end B of the plant. The conveyer runs through a passage 30 beneath the plant, through a water seal in the preheating chamber 25, through the sterilizing chamber 26, and through a water seal in the cooling chamber 27.
Patent GB-935149-A (GB)
Title: Foldable ladder
IPC: E06C1/52
Filed: 1962-06-05
Abstract: 935,149. Ladders. W. R. HIRE. June 5, 1962 [June 13, 1961], No. 21608/62. Class 20 (2). A ladder is in sections connected by hinges 14 in the stiles 15 to allow it to be folded and the stiles are turnable about their longitudinal axes when the ladder is extended so that the axes of the hinges are at right angles to the plane of the ladder so as to lock the ladder in extended condition. The hinges 14 are arranged alternately on opposite sides of the stiles so that the ladder folds in concertina fashion. The stiles of the ladder sections are built up from sections 15a-15c, Fig. 4, connected by dowel pins 17 on which the rungs are mounted so as to allow the stiles to turn on the rungs.
Patent GB-248647-A (GB)
Title: Variable electric condenser
IPC: H01G5/06
Filed: 1925-08-29
Abstract: 248,647. Cohen, S. Aug. 29, 1925. Condensers of the variable type have stator and rotor elements between a pair of end plates, the stator plates being spaced by spacing members, with low loss insulating members fitted between the ends of the spacing members and the end plates. The end plates 1, 2 are provided with extending tongues at 8 - - 11 which by means of bridge members 12, 14 - - 16 and posts 17 - - 21 form a frame-like formation. The stator plates 34 extend into grooves 33, Fig. 7, in spacing blocks 32 at either end of which a cup 31 is supported, the cup being slotted at 31c. Similar cups 23 are secured to the bridge members and between the cups are inserted insulating posts 30 of the material known under the registered Trade Mark " Pyrex " glass, glass, quartz, ceramic, or other hard vitrous material, the posts being held under compression by screwing up the nuts on the posts 17 &c. The rotor comprises a shaft 52 grooved at 58 to receive the extensions 60 of the rotor plates 49, the ends of which extensions are upset at 61, 62 to fill longitudinal grooves 59 thereby locking the plates in place. The rotor and stator plates are cut away as at 63 to provide uniform increments in capacity for equal angular displacements. The shaft 52 is pressed at one end by a flat spring 68 while at the other end it is journaled in a bearing formed by an adjustable split sleeve 56. In the modification shown in Fig. 13, posts 40, 41 of large area are used, the posts being internally threaded to receive a screw 25. The rotor shaft 52 has a shoulder 51 and the plates are spaced by washers 50 and locked by screws 48 engaging the threaded end of the shaft. A ball bearing 46 may be carried in a bearing 44 secured by means of a nut 45. The spring chuck 56 is longitudinally grooved to receive a tongue 66 on the end plate 1 whereby it is secured with regard to the said plate.
Patent GB-625119-A (GB)
Title: Improvements in and relating to reinforced cavity boards or panels
IPC: E04C2/36
Filed: 1946-07-19
Abstract: 625,119. Composite blocks. RIZZA, A. July 19, 1946, No. 21677. [Class 145(ii)] In cavity boards or panels comprising facing sheets 8 of wood or plywood separated by a reinforcing structure, the latter comprises tablets 6 of wood, plywood or composite board placed on edge between and secured to the facing sheets and arranged in a series of zig-zag rows each row being spaced so that the apices 7 formed by adjoining tablets lie inside the angles formed by the tablets of adjacent rows. In the alternative construction shown in Fig. 6, the tablets of adjacent rows are partially juxtaposed as at 9 with opposed surfaces in abutting engagement to form a cellular structure. A frame formed by members 5 preferably rabbetted to receive the facing sheets 8, encloses the reinforcing structure.
Patent GB-170398-A (GB)
Title: Improvements in or relating to flying machines
IPC: B64C3/38
Filed: 1920-07-19
Abstract: 170,398. Werner, H. July 19, 1920. Screw and like propellers.-A propeller blade for an aeroplane is formed with a thickened front portion followed by a cavity 57, on the pressure side of the blade, over which is stretched a membrane 61 which yields under air pressure and enables the air eddies to assist propulsion. The blade has an elastic rear edge 59. The shank can turn in a socket on the propeller boss against spring pressure, so that the inclination of the blade is adjusted to the air pressure. .
Patent GB-639529-A (GB)
Title: Improvements in or relating to means suitable for use in collapsing lasts in the manufacture of shoes
IPC: A43D3/02
Filed: 1948-08-18
Abstract: 639,529. Collapsing lasts. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Aug. 18, 1948, No. 21756. [Class 17 (i)] In a device for unlatching and collapsing a twopent last of the type described in Specification 592,476, a spindle 13, Figs. 1, 6, attached by a collar 14 to a tubular support 10, enters a thimble 20 in the heel 21 of the last. The support 10 has housed within it a plate-like member 15, a 71 finer ofg which normally lies within the spindle but which may be swung out through slots in the side of the spindle and thimble to unlatch the last. The unlatching operation differs from that disclosed in the prior Specification in that when the plate member 15 is swung, by depressing the treadle 12, past the intermediate position shown in Fig. 6, the plate 15 slides bodily lengthwise over the surface 22, since the slot 16 and arcuate surfaces 18, 28 at the base of the unlatching finger are concentric about the point 19, Fig. 1, so that the unlatching finger extends well into the recess of the last and completes the collapsing. In a modified construction, the unlatching finger is connected by an intermediate swinging member to a crank pin on a wheel which is rotated by a rack-and-pinion connection attached to the treadle. The tip of the unlatching finger is urged well into the last recess but describes a somewhat differently shaped path.
Patent GB-764923-A (GB)
Title: Direction indicator
IPC: G01S1/02
Filed: 1954-07-26
Abstract: 764,923. Electric indicating systems. BENDIX CORPORATION. July 26, 1954 [Aug. 31, 1953], No. 21767/54.. Class 40 (1). [Also in Group XL (c)] A synchro-resolver, particularly for resolving the 180 degrees ambiguity in radio direction indicators, has its quadrature output windings connected as adjacent arms in an impedance bridge, quadrature outputs taken from the respective bridge diagonals being used for indicating directional deviation and " ambiguity " respectively. As shown, an aircraft receiver 1 picks up a signal from a ground transmitter T and positions the rotor 3 of a synchro-resolver 2 in accordance with the direction of the signal. The quadrature windings 4, 5 of the rotor 3 are connected back-to-back to the quadrature windings 10, 11 of the rotor 9 of a further synchro resolver 8 which is set according to the direction of a desired course to the destination marked by the transmitter T. The quadrature stator windings 13, 14 of the synchro 8 produce an output voltage of magnitude and phase sense corresponding to the magnitude and sense of the angular deviation 6 of the setting of rotor 9 from the received direction. In known manner, this output is rectified in a phase-sensitive rectifier 22-23-25, fed with a reference voltage from the source 18 feeding the synchros, and the rectifier output operates a centre-zero type voltmeter 19 to indicate the deviation in magnitude and sense. To indicate whether the aircraft is approaching the transmitter T or has overshot it, and is receding therefrom, a potential is taken from the common point B of the quadrature stator windings 13-14 and the centre-point D of an impedance 28 connected across the output of these windings. The phase sense of the output BD relative to that of the reference source 18 changes as the aircraft passes over the transmitter T and this phase sense is indicated on a galvanometer 39 fed from the reference source 18 through rectifiers 33, 34 during alternate half-cycles. In the absence of any output from BD the rectifiers pass equal and opposite currents during their corresponding conducting half-cycles so that the meter 39 reads zero. The output from BD, according to its phase sense increases or decreases the current during those half-cycles when rectifier 33 conducts, to deflect the meter 39 to indicate the " ambiguity."
Patent GB-402195-A (GB)
Title: Improvements relating to pneumatic tyres and to the manufacture of the same
IPC: B60C5/04
Filed: 1932-08-03
Abstract: 402,195. Wheel tyres. GOODYEAR TIRE & RUBBER CO., 1144, East Market Street, Akron, Ohio, U.S.A. Aug. 3, 1932, No. 21832. Convention date, Aug. 12, 1931. [Class 144 (ii).] An inner tube or a tread member for pneumatic tyres is made by extruding simultaneously two semicircular halves 12, 14 of different grades of rubber and joining them at the points 16 in the common outlet die of the extrusion machine. The part 14 of the air-tube may be of an abrasion-resisting nature to prevent damage by the wheel-rim. An outer cover with tread and sidewall portions of different grades is made by extruding two semi-circular portions 24, 26 of different grades and then slitting the portion 26 midway by means of the knife 28. The two portions may be unequal and they may be connected by skived lap joints instead of buttjoints.
Patent GB-968043-A (GB)
Title: Means for cleaning vehicles
IPC: B60S3/06
Filed: 1962-06-06
Abstract: 968,043. Cleaning vehicles. R. E. COX. Aug. 20, 1963 [June 6, 1962], No. 21848/62. Heading B7J. Means for cleaning vehicles, e.g. 21, comprises a wheeled platform 10 which carries a rotatable brush 12 and power-driven means 13 (e.g. electric motor) for rotating the brush about an axis which is vertical or which is inclined to the vertical by a small angle, the brush being carried by an arm or frame 11 pivoted to the platform so that in use the paths followed by the bristles or other cleaning elements 14 of the brush will project beyond the platform, there being also provided apertured pipes 16 for supplying cleansing liquid in the vicinity of the brush, means (e.g. an electric motor 17 connected to a wheel or wheels) for traversing the platform over the ground and across the back of a vehicle 21 as the latter moves forwardly and means (e.g. a radial arm 18 pivoted on a fixed support 19) for constraining the platform to follow a circular or part-circular path when being traversed. The arm 11 is urged towards a stop 20a on the platform by a spring 20 and the brush 12 is housed in a cowling 15. The arm 18 is rotated in the direction A as the vehicle 21 moves forwardly. If desired the arm 18 may be extended beyond the support 19 and be secured to a second wheeled platform 23. The inoperative position of the arm 19 is shown at 27. The platform may be constrained to move in the circular or part-circular path by running on a curved rail track, instead of by the arm 18.
Patent GB-892019-A (GB)
Title: Pressure vessel unit
IPC: F15B1/10
Filed: 1958-07-08
Abstract: 892,019. Accumulators. MERCIER, J. July 8, 1958 [July 11, 1957], No. 21877/58. Class 69 (2). An hydraulic accumulator comprises a casing 4 divided into a liquid supply chamber 8 and a gas chamber 9 by a diaphragm 7. The pressure in the gas chamber may be varied during use by the introduction or release of an incompressible fluid into the chamber. In the embodiment shown an elastic bag 15 is fitted in the chamber and liquid is fed to or from this bag under the control of a valve 18. The liquid may be supplied from a separate source or from the line 2 in communication with the liquid supply chamber 8. The liquid may be fed directly into gas chamber 9 through a tube extending to near the bottom of the diaphragm in which case the liquid preferably contains a dispersion component such as agar-agar. The easing may be arranged in the inverted position when a float valve is arranged in the gas chamber to seal the opening when the liquid is removed completely from the gas chamber.
Patent GB-1215717-A (GB)
Title: Improvements in or relating to clutches
Inventor: WILKES KENNETH WALTER
IPC: F16D21/06
Filed: 1967-05-11
Abstract: 1,215,717. Friction clutches. LAYCOCK ENG. Ltd. 10 May, 1968 [11 May, 1967], No. 21923/67. Heading F2C. A selectively operable double friction clutch for connecting an input member 1 to both or only one of two concentric output shafts 4, 6, e.g. in an agricultural tractor to connect the engine to the tractor transmission and a power take-off, comprises a pair of driven discs 17, 27 splined on shafts 4 and 6 respectively and engaged with the input member 1 by an intermediate presser plate 24 and a second presser plate 34 acted on by common springs 37, and release levers 42 pivoted at 43 on presser plate 34 are acted upon by a release bearing ring 53 whereby, initial movement of the ring pivots the levers about roller bearings 50 thereon, reacting on push-rods 48 abutting the presser plate 24, to move plate 34 to the right and disengage disc 27, and further movement of the ring brings bolts 55 on the levers into engagement with abutments 54 on the clutch cover 8 to pivot the levers thereabout to allow springs 60 to move presser plate 24 to the right to disengage disc 17. Bolts 55 and 62 on the lever are adjustable to allow for wear and for initial setting of the clutch. The driven disc 27 comprises a hub 28 riveted to an annular hub flange supporting a number of spring steel cushion elements 30. The intermediate presser plate is splined at 25 to the input member 1 for rotation therewith and axial guidance relative thereto.
Patent GB-712480-A (GB)
Title: Improvements in and relating to machines for folding sheets and like articles
Inventor: WOODWARD STANLEY
IPC: D06F89/00
Filed: 1950-09-06
Abstract: 712,480. Photo-electric control systems. BAKER PERKINS, Ltd. Aug. 30, 1951 [Sept. 6, 1950], No. 21966/50. Class 40 (3). [Also in Group VIII] In apparatus for folding sheets &c. delivered by an ironer and comprising a conveyer 1 driven at a speed independent of that of the ironer (see Group VIII), means 16, 17 for gripping and raising the leading edge of a sheet is under the. control of a single photo-cell 35 the beam to which is interrupted by the passing sheet, timedelay means provides a predetermined delay in operating the gripping means after the photocell is actuated by the leading edge only of the sheet, and means is provided for varying this delay manually in accordance with the speed of the ironer. Conveyer 1 is arranged to run slightly faster than the ironer. When the leading edge of a sheet interrupts the beam from a lamp 36 to photo-cell 35, the timing condenser of an electronic timer commences to charge. After a charging time determined by the setting of a potentiometer 38, grippers 16, 17 close. The potentiometer dial is calibrated in ironer speeds, the dial being used in conjunction with a given folder speed. The grippers open when the trailing edge of the sheet passes the light beam, the position of lamp 36 and photo-cell 35 being so adjusted relative to the grippers, in accordance with the conveyer speed, that the leading edge when released will fall onto the trailing edge. Specification 618,157, [Group VIII], is referred to.
Patent GB-1037830-A (GB)
Title: Two-sided tumbler drier
IPC: D06F95/00
Filed: 1965-05-24
Abstract: 1,037,830. Tumbler driers. G. N. STRIKE. May 24, 1965, No. 21981/65. Heading F4G. A perforated tumbler drier drum 21 with loading and unloading apertures at each end closable by sliding doors 26, 27 and a circular shroud 18 within which the drum is supported on wheels (not shown) for rotation on a horizontal axis are tiltable about a vertical axis by pairs of pneumatically operated pistons 11, 13 at the front and rear respectively of the drier base 30. The pistons are mounted in a quadrangular arrangement, with the cylinders 13 pivotally mounted to enable either end of the drum when raised to be elevated substantially above the unraised end. A rearwardly extending collar 53 on the drum mounts a pulley 60 which is driven by belting 61 from a motor (not shown) and perforated lifting blades 48 are mounted in the drum. Hot air from a source (not shown) is conveyed into the shroud by an air duct 19 by a suction fan (not shown) and the seals 25 prevent leakage to atmosphere by the shroud, which seals comprise felt rings 66, 67 fixedly mounted in lateral engagement with the opposite ends of the drum which project through the shroud.
Patent GB-841539-A (GB)
Title: Improvements relating to a limit switch device for a portable crane having a jib of variable length
IPC: B66C23/687
Filed: 1957-07-11
Abstract: 841,539. Cranes with telescoping jibs. DEMAG-ZUG G.m.b.H. July 11, 1957 [Aug. 27, 1956], No. 22067/57. Classes 78 (4) and 78 (5). In ,a mobile crane having a jib of variable length, a limit switch device comprises a stop operated by the hoisting drum to switch-off the motor when the load hook nears the jib-head pulley, the stop being adjustable to allow for the variable length of jib and an indicator being provided to show the required position of the stop for a given length of jib. As shown, a rod 1, Fig. 1, moves axially as the winch rotates, carrying a stop 3 mounted on a tube 2 variable in position along the rod by an internallythreaded knob 4 mounted on a threaded reduced end portion 1a of the rod 1. A scale 6 indicates the correct position of the stop for any jib length. In a modification, Fig. 2, a ring 7 mounted for rotation on the rod 1 is internally-threaded at 7a to move axially a ring 8 carried by the non-rotatable tube 2. A securing bolt 9 in the ring 7 engages in one of a number of holes 8b in the ring 8 and carries a scale indicating jib lengths.