baber/WOPTO huggingface dataset:
Patent GB-318718-A (GB)
Title: A folding stand for cards and the like
IPC: B42F13/40
Filed: 1928-07-31
Abstract: 318,718. Britton, F. R. July 31, 1928. Card and like stands. - A folding case for containing sheet articles such as cards is adapted to be erected into a stand to support the cards. The device may be used as a trumps indicator for card games, for displaying photographs, calendars, &c., or as a notebook or writing tablet. The cards 13 and cardboard covers 10, 11, Figs. 2 and 3, are hinged together by metal rings 15. A flap 18 is attached to one cover 10 by a flexible strip 19 and an extension 20 is attached to this flap 18 by another flexible strip 21. In the closed position, Fig. 3, the extension 20 is secured to the cover 11 by a press stud 25, 26, and when open the flap 18 forms a base, the normally outer faces of the covers 10, 11 being brought opposite to each other by turning the cover 11 over the rings 15 and securing it to the extension 20 by the engagement of the press-stud parts 25, 27. In a modification, Figs. 5 and 6, the cover parts 11, 10, 18, 20 are connected by and covered with a single sheet of material. The covers and leaves are attached to flexible strips 31 and are secured together by studs 32. The cover extension 20 is held in place by being inserted in one of two straps 35, 36.
Patent GB-1457499-A (GB)
Title: Process for the preparation of anthraquinone
IPC: C07C46/02
Filed: 1975-05-22
Abstract: 1457499 Anthraquinone BAYER AG 22 May 1975 [2 Aug 1974] 22270/75 Heading C2C An anthraquinone is prepared by reacting a 1,4-naphthoquinone with trans-1-acetoxybutadiene in a polar solvent at from 30 to 60 C., optionally in the presence of acetic acid, to give 1 - acetoxy - 1,4,4a,9a - tetrahydroanthraquinone and treating the reaction solution thus obtained with oxygen at from 100 to 130 C. without isolation of the 1-acetoxy-1,4,- 4a,9a-tetrahydroanthraquinone, optionally after the addition of a salt of acetic acid or of a compound which forms an acetic acid salt under the reaction conditions. The first stage of the reaction is preferably carried out in the absence of oxygen.
Patent GB-1380860-A (GB)
Title: Two-step method of making a colour picture tube
IPC: H01J9/227
Filed: 1973-05-10
Abstract: 1380860 Colour television tubes FORD MOTOR CO 10 May 1973 [17 May 1972] 22329/73 Heading H1D The method of temporarily reducing the aperture size of a shadow mask, disclosed in Specification 1,380,859, to facilitate its use in the manufacture of the phosphor dot screen of a colour tube is modified by employing two separate coating and heating steps, the coating materials for the first and second steps being powder compositions of polymeric materials having molecular weights in the range 10,000 to 100,000, and 1800 to 6000, respectively. Specific materials referred to are the same as those of Specification 1,380,859; many detailed examples are provided.
Patent GB-885337-A (GB)
Title: Device for performing repetitive operations on a strip or strips of material
IPC: B29C65/18
Filed: 1958-07-11
Abstract: 885,337. Making paper &c bags. WEBER & CO. Inc., H. G. July 11, 1958 [July 11, 1957], No. 22342/58. Class 94(2). A device for performing repetitive operations on a strip or strips of material moving along a predetermined path, comprises two endless conveyers arranged one on each side of the path with one run of each conveyer extending adjacent to and parallel with the path, means independent of the material for driving the conveyers at the same speed as the material, a pair of co-operating members mounted one on each conveyer, means for maintaining the members in constant alignment with each other in a plane at right angles to the path and means for periodically moving at least one of the members in a plane towards the other of the members co-operatively to engage the material to perform an operation thereon while moving with the material. As shown superposed strips of pliable plastic material 11 are sealed by co-operating heated members 15, 16 to form bags. The device 10 is mounted on a base 12 and includes the sealing head members 15, 16 between which the strips 11 are fed by rollers 13, 14. The heads 15, 16 are movable towards and away from the strips 11 and are actuated by chains 17, 17<SP>1</SP>, driven continuously by a motor 28 via chains and sprockets 26, 24<SP>1</SP>, 23<SP>1</SP>, 25<SP>1</SP> and gears 27, 27<SP>1</SP>. The heads are aligned by means of rods 38 which extend through bearings to the heads. Two pairs of horizontially aligned guide rods 47, 47<SP>1</SP> are also provided on the frame of the device. The heads 15, 16 are fastened to chains 17, 17<SP>1</SP> through clamps 40 which are rotatably attached to rods 41 on the heads and to a link of chains 17, 17<SP>1</SP>. The heads 15, 16 are forced into sealing engagement by the action of rollers 43, 43<SP>1</SP>, which move over adjustable pressure plates 44, 44<SP>1</SP> mounted on the main frame. The rollers 43, 43<SP>1</SP> are attached to the heads 15, 16 by L-shaped clamps 45. The heads are provided with electric heating elements 33, 33<SP>1</SP>. which are connected by conductors 52, and a thermal couple 53 indicates and controls the temperature of the sealing members.
Patent GB-1358148-A (GB)
Title: Bale strapping
IPC: B65B27/12
Filed: 1973-05-10
Abstract: 1358148 Strapping bales SIGNODE CORP 10 May 1973 [15 May 1972] 22396/73 Heading B8C A method of strapping a bale comprises compressing material between platens 13, 14 to form a bale, feeding a strap 28 around the bale to form a loop having overlapping strap portions, constricting the loop into tight binding engagement with at least one side of the bale, and forming a closure in the overlapping strap portions, the step moving the loop to shift the closure from one side of the bale to another. The strap may be moved by a roughened or knurled wheel 38 movable on a pivoted arm 36 between a retracted position and an anvil 34. An air motor 78 rotates the wheel to shift the strap located between it and the anvil. Alternatively (Figs. 7 and 8, not shown) the strap may be shifted by a gripping assembly reciprocable in one or a plurality of steps along a bale side. The platens have a plurality of strap grooves 18 and 19. The strapping device 40, which includes feed and tensioning rollers 48, 49 and a seal magazine 43, and the shifting device 30 are mounted on legs 21, 22 of a frame 20 which is movable on rollers 25, 26 between pairs of grooves 18, 19. Either platen 13, 14 may be movable to compress the bale, or the baling press may be horizontally disposed.
Patent GB-881560-A (GB)
Title: Adjustable torque release coupling
IPC: F16D7/10
Filed: 1960-06-27
Abstract: 881,560. Slip couplings. SVENSKA FLAKTFABRIKEN A.B. June 27, 1960 [June 26, 1959], No. 22443/60. Class 80 (2). An overload release clutch comprises rollers 4 urged resiliently radially outwardly of a driving member 1 by spring washers 8 into contact with the inner periphery of a driven member 2a. Rollers 3 project inwardly from slots in the driven member and bear against a ring 20 adjustably locked to the driven member by a screw 21. The ring 20 has grooves 22, the depth of each of which varies so that the radial position of the rollers 3 can be varied by adjusting the angular position of the ring 20 to thereby vary the maximum torque transmittable. The driving rollers 4 are mounted in radial slots in a ring 5 which is locked to the driving member 1, which houses the springs 8, by a pin 18.
Patent GB-771738-A (GB)
Title: Improvements in or relating to methods of manufacturing mouldings
IPC: B29B13/02
Filed: 1955-08-04
Abstract: 771,738. Moulding thermoplastic resin. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. Aug. 4, 1955 [Aug. 6, 1954], No. 22461/55. Class 87(2). A rod is moulded from polythene in a mould 1, which may be of glass, and which can be lowered into a tube 2 of larger diameter, which may also be of glass, filled with water which, when the mould enters, overflows into a tank 4. A heater 5 which, like the tube 2, is stationary surrounds the tube 1. With the lower end of the mould 1 in the heating range of the element 5, finely powdered polythene is introduced and after the polythene in the lower end of the mould has been liquified by the heat and air or other occluded gas has escaped the mould is lowered progressively, so that the polythene above is heated. At first a thin jet of liquid polythene emerges from a hole 6 in the bottom of the mould but, when the mould is lowered, a thin layer of solid polythene is formed on the bottom. Before the bottom of the mould is submerged in the water the aperture 6 is opened by breaking off the adhering thread of solid polythene so that, as the lowering progresses, the clear space due to the contraction of solidified polythene is filled with water, which supports the lower end of the moulded rod. The weight of the partly solidified rod is not therefore held solely by adhesion to the wall of the mould which might produce cracks, and long rods can be moulded. Instead of water, a liquid which does not act upon polythene may be used, e.g. glycerol or amyl alcohol. The aperture 6 may be larger and closed at the beginning of the process. The polythene may be introduced to the mould directly in the liquid state (the viscosity in some cases being reduced by adding liquids), necessary after de-gassing to remove air bubbles ; also, the mould may be partially evacuated to assist the removal of occluded gas bubbles. De-gassing, either in the mould or in a separate vessel, is of advantage in the moulding of high polymeric thermoplastic synthetic resins other than polythene. The moulds may be shaped to produce rods of different profiles, or to form tubes.
Patent GB-1172857-A (GB)
Title: Improvements relating to Control Circuits for Electrostatic Precipitators
Inventor: STEVENS SYDNEY ARTHUR
IPC: B03C3/68
Filed: 1966-05-20
Abstract: 1,172,857. Electrostatic precipitators. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 12 April, 1967 [20 May, 1966], No. 22542/66. Heading B2J. A control circuit indicates "optimum" precipitator conditions i.e. when E.H.T. is increased until the sparking rate is such that the mean voltage across the precipitator begins to fall, by a corresponding deflection on a meter 7. A sensing transformer 4 is connected across the E.H.T. transformer primary, and a circuit 9, 10, 11 integrates the rectified voltage. A zener diode 8 excludes voltages at which no precipitation occurs. Alternatively, an integrating thermal meter may replace circuit 9, 10, 11 and meter 7.
Patent GB-787924-A (GB)
Title: Improvements in the production of phthalic anhydride
Filed: 1955-08-05
Abstract: In a process for the production of phthalic anhydride by oxidation of naphthalene in vapour phase with air in the presence of a solid oxidation catalyst kept in fluidized motion, a part of the phthalic anhydride which is formed in the reaction is separated by cooling the reaction mixture and then fresh amounts of air and naphthalene are supplied to the residual gaseous mixture and the mixture is recycled. The catalyst used may be vanadium pentoxide, if desired on a carrier such as silica gel, kieselguhr, pumice, alumina, or corundum.  The catalyst may also contain potassium sulphate.  The vapour leaving the reaction zone is cooled, preferably to a temperature not below 132 DEG  C., sufficiently to form a condensate containing a part of the phthalic anhydride in liquid or solid form.  The catalyst is preferably maintained at a temperature of 330-350 DEG  C.  In an example, air containing phthalic anhydride recycled from a chamber in which part of the phthalic anhydride produced in the process is liquefied, is mixed with naphthalene vapour and the mixture is passed through a fluidized catalyst bed at 345 DEG  C., and then through a cyclone separator to remove particles of entrained catalyst.  The gaseous mixture is then cooled to 135 DEG  C. in a separation chamber in which part of the phthalic anhydride is condensed in the form of liquid.  A portion of the cooled gas containing 8 per cent of oxygen by volume is drawn off from the cycle and replaced by fresh air so as to restore the oxygen content of the gases to be recycled to the original value of 11.3 per cent by volume.  The mixture is then led back to the reactor where it serves to oxidize further quantities of naphthalene.  The residual gas which is withdrawn from the cycle contains phthalic anhydride and small quantities of naphthalene and naphthaquinone. It is mixed with air and then passed over a second catalytic converter at 370 DEG  C. to convert the residues of naphthalene and naphthaquinone to phthalic anhydride which is then separated out in solid form in a separation chamber.
Patent GB-446893-A (GB)
Title: Improved process of manufacturing reconstituted compressed leather and product obtained thereby
IPC: C07C51/31
Filed: 1934-08-03
Abstract: Rubber latex employed as binder in a fibrous composition is rendered more fluid by the addition of a wetting - agent such as a sulphonated oil or a resinous soap.ALSO:Completely disintegrated fibres of waste leather are thoroughly detanned and brought into aqueous suspension with the addition of rubber latex and phenol or naphthol or oxidation products of diphenols such as quinones and sulphoquinones to form a paste which after drying and compression may be used as a leather substitute.  Vegetable tanned leather is detanned in a bath containing sodium carbonate in the proportion 0,3-0,5 per cent of the dry waste, or sodium borate in the proportion 0,6-0,8 per cent. Chrome tanned leather is detanned by soaking in a bath containing 5-10 gms per litre of mineral acid to extract soluble chromium compounds; remaining compounds are then converted into chromates, e.g. by treatment with small quantities of sodium peroxide.  The latex employed as binder may be rendered more fluid by the addition of sulphanilate of sodium or wetting agents such as sulphonated oils or resinous soaps.  A specified composition contains 1,83 kgm. leather fibres, 0,25 kgm. casein solution containing borax, 2,5 kgm rubber latex, 0,2 kgm. sodium thiosulphate, 0,25 kgm. sulphonated oil, 0,05 kgm. sulphur, 0,15 kgm. terpene, 0,05 kgm. zinc oxide, 0,1 kgm. accelerator, 0,2 kgm. of a 1 per cent solution of phenol, naphthol or a di-phenol oxidation product, 0,22 kgm. ammonia and 6,2 litres of water.  Dyes may be added.  The proportions of casein and thiosulphate may be varied to control the suppleness; suppleness may be increased by addition of 5 per cent of carbonate of lime after mixing of the paste.  Textile fibres may be added to the detanned leather fibres.  The paste may be spread on a support of carded fibres or on a jute fabric before drying.  The sheets may be surface coloured by application of alcohol-prepared colours to which some nitrocellulose dissolved in ether is added.
Patent GB-1486523-A (GB)
Title: S-acyl compounds and their use in determining lipase activity
IPC: G01N33/52
Filed: 1975-05-23
Abstract: 1486523 Determination of lipase DAINIPPON PHARMACEUTICAL CO Ltd 23 May 1975 [28 May 1974 13 June 1974 13 Sept 1974] 22714/75 Heading G1B [Also in Division C2] Lipase activity is determined by reacting an sacyl compound of one of the formulae where n is 2-4, n' is 2-4 or 9-13, m is 3, 7 or 11, X is O or S, Y is O, S or -CH 2  CH 2 -, and either y is 1 and m' is 4 or y is 2 and m' is 12 with a lipase in a buffer solution containing a chromogenic sulphlydryl reagent and subjecting the resultant solution to colorimetry. The preferred chromogenic reagent is 5, 5'-dithiobis (2-nitrobenzoic) acid. If necessary a carboxylesterase and/or arylesteraseinhibitor may be added, e.g. diisopropyl fluorophosphate or phenylmethylsulphomyl fluoride. A kit for use in the determination is described.
Patent GB-686744-A (GB)
Title: Improvements in kettles
IPC: A47J27/21
Filed: 1948-08-30
Abstract: 686,744. Tea kettles. GOTH, 1. Aug. 30, 1948, No. 22789/48. Class 66 The filling opening d of a kettle, e.g. an electric kettle, is positioned between the front end g of the handle and the spout e, and the handle c does not project substantially over the opening d. The handle c may be resilient, and may be detachably hooked into sockets f, f<SP>1</SP>, or it, may be rigid and secured by screws. The filling opening may be covered by a lid s which may be hinged, and it may adjoin a pouring-opening. The top b may be secured to the body of the kettle by screws or by a bayonet catch the pins of which may be replaced by screws.
Patent GB-321459-A (GB)
Title: Improvements in or relating to rock-drills and like tools
IPC: B25D9/24
Filed: 1928-08-11
Abstract: 321,459. Holman, J. L., and Holman, A. T. Aug. 11, 1928. Percussive drills.-The admission of fluid to the cylinder is controlled by a floating plate valve with a seat on one or both sides extending completely around it, the power fluid being supplied to the outer-margin of the valve. The valve may have an axial extension whereby it slides on a sleeve surrounding the twist bar. The cylinder 10 has a hammer piston 11 reciprocating therein upon a twist bar provided with ratchet mechanism 13. A water tube 51 is provided. The fluid supply 16 communicates with a chamber 17 housing the valve 15 which is of less diameter than the chamber. The valve engages opposed seats 18, 19 controlling annular ports 20, 21 of passages 22, 23 connected to the cylinder ends. Pressure release valve 32, 33 are arranged in rear valve chambers, and alternately put the cylinder ends into communication with outlet passages 35, 36. The auxiliary valves are closed by fluid pressure controlled by the main valve and are opened by compression. An annular cavity is provided to balance the valve, which, constructed as shown, has an annular extension 45 which slides upon a sleeve 50 surrounding the twist bar, and has its rear end put to exhaust, or alternately to exhaust and pressure to balance the valve. The main exhaust 48 is controlled by the piston. The main valve is reversed by compression in the cylinder ends on the piston overrunning the auxiliary exhaust passages and by the release.
Patent GB-507818-A (GB)
Title: Gain control circuits for telephone or like transmission systems
IPC: H04B3/10
Filed: 1938-08-05
Abstract: 507,818. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. Aug. 5, 1938, No. 23205.. Convention date, Aug. 5, 1937. [Class 40 (iv)] In a gain control circuit for a telephone transmission system the attenuation caused by a network is controlled by a relay which operates, when the signal level of the current in the transmission line rises above a predetermined level, to switch on a heating device for a resistance element in the network and thereby to alter the attenuation. The element has a high temperature coefficient of resistance and may be made of silver sulphide, zinc oxide or barium. In an example, Fig. 1, a filter 116 which accepts only a pilot current, is connected to the E to W line behind an amplifier 110. The output of the filter is connected to the input circuit of a gas-filled space-discharge device 121 the discharge being initiated only when the pilot current reaches a predetermined strength. Operation of the device 121 causes the relay 126 to close the circuit for a heater 114 placed near a silver sulphide resistance 113 in the attenuation network 112. At the same time a relay 129 in the heater circuit opens the anode circuit of the device 121, after a short interval, and releases relay 126 to open the heater circuit. So long as the pilot signal is above the predetermined strength, this action is repeated. In another example, Fig. 2, the pilot signal is applied through a filter 13 to a detector 18. The direct current output circuit of the detector 18 includes a device, 26a, for indicating the volume of the output of amplifier 5, and a galvanometer relay 25. The alternating current component in the output of detector 18 initiates a discharge in the gas-filled space discharge device 34 if the pilot signal is too strong and relay 44 is operated to complete a circuit for the heater 11. The galvanometer relay 25 operates only when the pilot signal is abnormally strong or weak. Relay 29 then operates and replaces the device 34 by an arrangement maintaining the temperature of the silver sulphide element 8 constant during the abnormal conditions. The silver sulphide element is connected in one arm of a Wheatstone bridge. The other three arms consist of two resistance elements 65 and 66 and a series of resistances 54 to 59. When the bridge is not balanced, relay 67 operates and the relays 49 to 53 operate in succession to increase the heating current through the heater 11 and to short circuit the resistances 54 to 58 respectively. When a balance is reached, 67 releases and operates 68 which then locks to prevent any further change in the. heating current until the conditions are again normal. The resistance element 65 is similar to the element 8 and compensates for changes in room temperature. A silver sulphide element 96, Fig. 3, separate from the element 97 connected across the line may be used in the bridge circuit. Specifications 465,923 and 479,668 are referred to.
Patent GB-1478030-A (GB)
Title: Alternator for charging a capacitor and actuating switch means to discharge this capacitor
IPC: F02P7/03
Filed: 1974-06-25
Abstract: 1478030 Alternator BRUNSWICK CORP 25 June 1974 [18 July 1973] 23246/76 Divided out of 1478029 Heading H2A [Also in Division F1] An alternator for charging an ignition capacitor and actuating a switch means to discharge the capacitor for firing an internal combustion engine 1 comprises an annular motor 7 having a plurality of circumferentially spaced essentially neutral pole positions, mounting means for coaxially connecting the motor to a drive shaft 48, a stator assembly mounted concentrically of the motor and having a magnetic core 30 having pole portions 54, 55 spaced lightly from the magnet members on the rotor and having charging winding 13, 14 means mounted on each polepiece of the core, and a trigger winding 17 supported in a common plane with the charging winding means 13, 14 by a movable mounting means arranged to be operable by a timing control element for angularly positioning the trigger winding about the drive shaft so as to control the timing of a trigger pulse signal developed in the trigger winding. The magnetic members include a pair of members each of which span 180 degrees of the rotor the pair of members being formed by a flexible magnetic strip 59 wound into a single annular turn which may be a flexible rubber ferrite. An annular magnetic iron ring 60 serves the return path. The trigger coil 17 is mounted on a circumferentially movable pole 35. The coil 17 and pole 35 are mounted within a plastic trigger housing 64. The housing 64 includes an integrally formed mounting ring 70. The ring member is releasably and rotatably clamped within a ledge 71. A turning cam plate 77 is connected through a suitable linkage 81 to a throttle control lever 82 for a carburetter 79 of the internal combustion engine 1 with which the alternator is associated. The trigger coil 17 is movable between a retard position and an advance position for the engine ignition system. The rotor 7 is a flywheel of the engine 1 which may be an outboard motor comprising a two cylinder internal combustion engine. The windings 13 and 14 may be wound with different turns to provide high and low speed windings as disclosed in U.S. patent 3,542,007.