baber/WOPTO huggingface dataset:
Patent GB-789518-A (GB)
Title: Improvements in or relating to polyphase alternating current supply systems
Inventor: CHILMAN JOHN ALFRED
IPC: H02J3/42
Filed: 1954-10-13
Abstract: 789,518. Supply systems. ROTOL, Ltd. Oct. 7, 1955 [Oct. 13, 1954], No. 29553/54. Class 38 (4). Turbo-alternators such as A2, T2, and A3, T3, are adapted to be connected in parallel to bus-bars Ba, Bb, Bc, by means of tie-breaker switches TB2 and TB3 respectively. Each alternator has a synchronizing machine M2, M3, with two stator windings 26, 27, and a rotor 13, comprising two elements 30, 31, which turns at a speed proportional to the difference of the speeds of the oppositely-rotating fields produced by the windings 26, 27, when these are supplied at different frequencies. The rotor is so wound that it always takes up one of two positions in relation to the stator when the supplies to the two stator windings are in phase-agreement. If the alternator A2 is to be connected to the busbars, its switch TB2 being open, the winding 26 of the machine M2 is connected to the busbars, and the winding 27 is connected to the output lines of the alternator. When the turbine T2 is started, the rotor 13 will adjust the datum setting of the governor G2 and the frequency of the alternator A2 until the alternator synchronizes with the bus-bars. A two-lobed cam 35 is secured to the shaft of the rotor and, when the rotor is in either of its positions of phase-agreement, contacts 37 are closed. By adjusting a selector switch 40 to an appropriate position and closing push-button 41, a circuit may be completed to the closing coil 16 of the switch TB2 through contacts 37 and time-delay contacts 38. The contacts 38 are closed only if the rotor 13 is moving so slowly that the delayaction device has. time to operate before the contacts 37 re-open. If an alternator, such as the alternator A3, has been already connected to the bus-bars, the stator winding 26 of the associated synchronizing machine M3 is shortcircuited and has no primary effect upon the torque acting upon the rotor 13. At the same time, the winding 27 is converted into a twophase winding with one phase connected between the output lines Lb, Lc, of the alternator A3, and the other phase connected across the secondary winding of a current transformer CTa3 in the output line La of the alternator A3. The said other phase is also connected across the secondary winding of a current transformer in an output line of the next alternator (not shown) which is connected to the bus-bars. In this manner, the difference of the secondary currents flows in the second phase of the winding 27 so that the machine M3 operates to adjust the output of the turbine T3 whereby the loads on the alternators are suitably proportioned. When an alternator is disconnected from the busbars, it is no longer available as a load reference for the preceding alternator. Switch 49 is therefore closed to maintain the load-proportioning circuits of the remaining alternators connected to the bus-bars. Specifications 515,934, 516,613, 732,052, 767,057, 785,835 and 789,517 are referred to.
Patent GB-536104-A (GB)
Title: Improvements in or relating to the chemical treatment of artificial fibres made of proteins
IPC: D01F4/00
Filed: 1939-11-07
Abstract: 536,104. Artificial filaments, films 8:c.; albumens ; dyeing textiles &c. SANDOZ, Ltd. Nov. 7, 1939, No. 29562. Convention date, Jan. 27. [Classes 2 (ii), 2 (iii) and 15 (ii)] Artificial fibres having a basis of a protein such as casein or keratin are subjected to treatment with compounds of trivalent chromium at temperatures above 50C. for the purpose of increasing their resistance to physical and chemical agents without impairing their tinctorial properties. The treatment increases the resistance of the protein materials to the action of boiling water and aqueous solutions of acids. The treated materials may be dyed with direct and sulphur dyes, and also with acid and mordant dyes which require boiling dye baths, or the presence of acid for fixing. The dyeings are resistant to the action of soap and soda treatments at 60C. The treated fibres are resistant to the fulling action of aqueous liquids. They show increased resistance to wearing and mechanical stress and they have increased tensile strength and elasticity. The chromium compounds may be used in presence of acids or salts. Chromium fluoride, chloride, sulphate, formate, acetate, chrome alum, sodium chrome oxalate, or other simple, double, or complex salt of trivalent chromium may be used. A basic salt may be used. The artificial protein fibres may be treated in loose form or as slivers, or skeins, or in the form of fabrics alone or mixed with other fibres. Treatment is in general carried out in an aqueous medium. Subsequently to the treatment with the chromium compound the materials may be treated with acid-binding agents such as solutions of soda, or ammonia. The chromium treatment may be carried out in the course of the manufacture of the artificial fibres or other products. The chromium treatment may be combined with the dyeing, e.g. " Lanital " (Registered Trade Mark) may be dyed with a mordant dyestuff in presence of a trivalent chromium. salt, present in excess of the amount required for the formation of the chromium lake of the dyestuff. In an example, " Lanital " is treated with a hot solution of chrome alum, and then after adding Glauber salt to the bath, there is added a mordant dyestuff and an acid. When the dyeing is completed, potassium chromate is added to the bath and chroming effected with boiling. In another example, the fibres are treated with chromium acetate solution containing coconut-oil fatty acid polyglyceride. In another example, the fibres are treated with a boiling solution of complex sodium chromium oxalate and then dyed with Indochromin 2R in presence of a chrome mordant and an acid, or the fibres are treated with a boiling solution containing sodium chromium oxalate, Indochromin 2R, and acetic or formic acid. The Specification as open to inspection under Sect. 91 comprises also the treatment of films, plates, and synthetic masses having a basis of protein or the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-1103169-A (GB)
Title: Tea cutter
Inventor: LEESON PATRICK GEORGE
IPC: A01D46/04
Filed: 1964-07-22
Abstract: 1,103,169. Hedge cutters; harvesting tea. AIRACE Ltd. 2 July, 1965 [22 July, 1964], No. 29566/64. Headings A1E and A1F. A hedge cutting machine particularly for a hedge of tea bushes comprises a frame 1 propelled along the top of the hedge by means of an endless belt 3 which runs over a series of rollers 4 mounted on the frame and a roller 5 driven from an engine 11. A cutter head 12 is pivotally mounted at 13 on frame 1 and comprises a helical blade cutter 15 co-operating with a fixed knife 17 the cutter 15 being driven through chain and sprocket gearing by the belt 3. The cut leaves are directed into a tray 30 by means of plates 31, 33. A bar 36 carried by the cutter head 12 serves to depress young shoots, and side plates 34 move any side shoots into the path of the cutter. A guide handle 21 is provided at the side of the machine and may be provided with a throttle lever controlling engine 11. A reciprocating or a continuous chain cutter may replace the cutter 15 and the cut leaves may be directed via an endless belt into receptacles travelling at the side of the machine.
Patent GB-427493-A (GB)
Title: Improvements in and relating to screw propellers
IPC: B63H1/12
Filed: 1933-10-25
Abstract: 427,493. Screw propellers. UNISLIP PROPELLER CO., Ltd., and KARI, A., Milburn House, Dean Street, Newcastle-on- Tyne. Oct. 25, 1933, No. 29601. [Class 114] A screw propeller has each of its blades associated with a reaction blade or blades in spaced relation therewith such blades being placed so that they overlap the following edges of the primary blades by at least one - tenth of the width of the primary blade and the following edges of the reaction blade extend to the rear of the following edges of the primary blades. The blades a of a screw propeller carry reaction blades b of which the forward edge h overlaps the blade a by at least one-tenth of the width j, k, and the after edge m overlaps the after edge j, the blades b being supported on the blade a by bridge pieces e with or without an attachment to the boss and to the tip d of the main blades. The blades b may merge into the primary blades a near the tips. Both the primary and reaction blades may be provided with a variation in pitch in at least one direction and as shown the pitch is at minimum near the boss and increases out to the section at two-thirds of the radius. The driving face of each primary blade may be fined or tapered away at its leading edge k. Blades b may be mounted on a separate boss from that carrying the blades a, the bosses being rigidly connected together by screws, bolts, rivets, welding, or otherwise.
Patent GB-387053-A (GB)
Title: Improvements in or relating to the production of jams or jellies
IPC: A23L21/15
Filed: 1931-10-26
Abstract: A fruit jelly is obtained by concentrating by freezing fruit juices obtained by pressing the fruits, and then adding pectin and sugar, in the presence of acid, in proportions necessary to form a jelly in the cold.  With acid-containing fruits, such as citrus fruits, excess of acid in the concentrated juice is neutralized by adding calcium carbonate.  An opaque jam or jelly may be obtained by adding some of the original juice or of the original fruit pulp to the concentrated jelly.
Patent GB-745105-A (GB)
Title: Improvements relating to systems for the automatic application of compressed air brakes for railway vehicles under the control of automatic train control apparatus
IPC: B60T7/18
Filed: 1953-10-27
Abstract: 745,105. Fluid-pressure railway brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and SIMMONS, A. W. Oct. 15, 1954 [Oct. 27, 1953], No. 29635/53. Class 103 (1). In fluid-pressure braking apparatus for railway vehicles of the kind described in Specification 743,033 comprising a service application valve 7 operable by reduction in air pressure in a control chamber 23 to bring about a service application of the brakes by venting the equalizing reservoir 5 through a first choke 27, the said reduction of pressure is delayed by the venting of the air in a Timing reservoir 8 through a second choke 10 under the control of a magnet valve 16 which is opened upon the de-energization of the electric circuit or circuits. The timing reservoir pressure 8 acts in space 20 above the piston of a delay valve 12 so that when the winding 17 is de-energized to allow escape of air past valve 16 and through choke 10, the exhaust valve 21 which prevents escape of air from chamber 23 is closed sufficiently long to acknowledge the warning given by a horn 11 and re-energize the coil 17 before the brakes are applied automatically by the venting of reservoir 5 to atmosphere. In another embodiment described the timing reservoir and horn are operated by separate reservoirs or the application valve 7 and cut-off valve 13 are combined in one unit.
Patent GB-927943-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D29/00
Filed: 1960-08-29
Abstract: 927,943. Thermometers. W. LOH. Aug. 29, 1960 [Sept. 7, 1959], No. 29678/60. Class 97 (3). [Also in Groups XIII and XXV] An L-shaped thermometer has one limb 25b lying along a scale 11 on the front of a refrigerator and the other limb 25 extending rearwards with the bulb 25a disposed in the storage space.
Patent GB-1077675-A (GB)
Title: A process for bonding surfaces with acrylate ester compositions
Inventor: KARO WOLF
IPC: C08F20/20
Filed: 1964-07-23
Abstract: Bonding of surfaces of polyvalent metals is effected by applying formamide to one or both of the surfaces to be bonded and then applying to either or both of the surfaces an adhesive including a dimethacrylate or diacrylate ester of a water-soluble glycol or a monomethacrylate or monoacrylate ester of a mono C1-C3 alkyl or mono C1-C3 hydroxyalkyl ether of a water-soluble glycol, and an organic peroxide polymerization initiator, and then maintaining the two surfaces in contact with the adhesive until the latter is polymerized.  The monomeric ester may be derived from a glycol such as ethylene glycol, dimethyl-propanediol, tetraethylene glycol, polyethylene glycol and polypropylene glycol or from the appropriate (hydroxy)-alkyl ethers thereof.  Suitable initiators include di-t.-butyl peroxide, t.-butyl hydroperoxide, t.-butyl perbenzoate, di - t. - butyl monoperphthalate, methyl ethyl ketone peroxide, cumene hydroperoxide and diisopropylbenzene hydroperoxide. Accelerators for the initiator may possibly be present, e.g. cobaltic compounds, ascorbic acid and amines.  The adhesive may also include a polymerization inhibitor, e.g. hydroquinone, pyrogallol, quinhydrone, and monoaryl or monoalkyl ethers of hydroquinone.  To moderate the strength of bond obtained, there may be included in the adhesive a compound of the formula RO-C2H4-O-C2H4-OR1 where R is a C3- 6 alkyl group and R1 is hydroge or a C1- 3 alkyl group.  The polyvalent metal surfaces may be those of zinc, cadmium, tin or steel.  Examples illustrate the bonding of nuts and bolts comprising such surfaces.
Patent GB-508763-A (GB)
Title: Improved hauling attachment for motor vehicles
IPC: B66F19/00
Filed: 1938-10-13
Abstract: 508,763. Extricating ditched motor vehicles. OESTERHELD, K. A. Oct. 13, 1938, No. 29737. Convention date, Oct. 15, 1937. [Classes 78 (iii) and 78 (v)] For removing the sunk front wheels of motor vehicles from ditches or soft ground, cables 13 are secured to drums 11 on the rear axle, passed underneath grooved and preferably larger sheaves 12 on the front axle and then connected to one or more anchorages 17, 19 in front of the vehicle. In the illustrated form, the two cables 13 on opposite sides of the vehicle are integral and are passed round an equalizing pulley 16 on a single anchorage. On driving the rear wheels to wind up the cables, the front wheels are lifted and also propelled forwards on the tables which act as tracks. Having thus placed the vehicle astride the ditch, the rear wheels can be passed over it in known manner by the use of the same cables, thus allowing the drivers of the vehicles to traverse ditches without outside help. The cables preferably are fitted with hooks at their ends to hook into holes in the flanges of the drums 11, and the latter when made detachable from the axle, preferably are secured thereto by the same bolts that fasten the wheels to their hubs.
Patent GB-954687-A (GB)
Title: Improved tool holder
Inventor: CHRISTNER WALTER
IPC: B23B31/113
Filed: 1961-08-18
Abstract: 954,687. Chucks. L. WEBER, [trading as BURKHARDT & WEBER KOMM.- GES.]. Aug. 18, 1961, No. 29886/61. Heading B3B. [Also in Division F2] A tool holder comprises a body 3 having a morse taper socket 7 and a nut 11 screwing on to the body and carrying means 17 for retaining it against rotation and bayonet-type means 12 for retaining it against axial displacement. The nut has lugs 12 which are entered through slots 13 in the spindle 1 and are turned to engage a stop 21. The balls are engaged by a spring ring 19 which permits the nut to be rotated to adjust the socket axially but which resist rotation of the nut during use.
Patent GB-1434769-A (GB)
Title: Screens
IPC: B07B1/12
Filed: 1973-06-22
Abstract: 1434769 Making filter screens MASCHINENFABRIK BUCKAU R WOLF AG 22 June 1973 [26 June 1972] 29908/73 Heading B3A [Also in Divisions B1-B2 and D1] In manufacturing a slotted screen (e.g. for a centrifuge) metal or plastics wires or bars 1 are coated and then laid or wound in a gap free manner, e.g. on a core, the coating is removed in lines 4 extending transversely of the long dimension of the wires or bars and they are united at these lines by welding, soldering, sticking or electrolyte deposition 5. The rest of the coating is then removed to give longitudinal slits (6) (Fig. 1b, not shown) of width equal to twice the coating thickness (section C-D). The removal of the coating (e.g. lacquer or plastics material) in both steps is by steam, hot air or solvent. The wires or bars may be of stainless-steel, steel, copper, bronze, brass aluminium or silver and may be of any section, e.g. round half, round trapezoidal, triangular, elliptical, rectangular, polygonal. Tapered stepped bars (Fig. 6, not shown) may be laid side by side vertically to produce a frusto-cone shape. The screen may be frusto-conical, spherical or tubular corrugated or stepped, and may need no supporting screen if the bars are wound edge on. The core may be soluble or multipart for removal. The screens may be used for sugar centrifuges or cut into annular sections.
Patent GB-1480165-A (GB)
Title: Amusement ride
IPC: A63G1/20
Filed: 1975-07-16
Abstract: 1480165 Amusement ride R TOWNSEND 16 July 1975 29933/75 Heading A6M An amusement ride comprises a standard 10, a rotatable frame 15, 16, seating unit or units 20 mounted on the frame for oscillation about a substantially horizontal axis and actuating means including a ratchet wheel 12, an actuating shaft 19 supporting the or each seat unit and oscillatory therewith and a detent 32 on the or each shaft 19 and co-acting with the ratchet wheel 12 so that oscillatory movement of the or each seating unit in one direction imparts rotary movement to the rotatable frame. As shown the shafts 19 are rotatable in lugs 18 depending from arms 16, a spring 29 biasses the seating unit to a central position and a stop bar 30 co-operates with cross members 22, 23 to limit the oscillatory movement of the seat unit. In a second embodiment (Fig. 4 not shown) a relatively higher standard (35) is provided and the seating units are in the form of swing seats (43).
Patent GB-1030068-A (GB)
Title: Improvements in or relating to dual pedal control systems for vehicles
IPC: B60K23/00
Filed: 1964-07-24
Abstract: 1,030,068. Dual-control pedal arrangements. P. E. HAPTED. April 12, 1965 [July 24, 1964], No. 29939/64. Heading B7H. A dual control pedal arrangement comprises a pair of shafts 19 and 26 journalled one within the other interconnecting levers mounting supplementary pedals 25, 35 and rollers 14 for engagement with brake and clutch pedals 10, 11. Tubular shaft 26 is connected to portion 28 by bridgepiece 29 or a section of tube with an aperture for lever 24. The shafts are mounted in a vehicle 38 by brackets 36, 37.
Patent GB-1019984-A (GB)
Title: Improvements in or relating to smoke filters
Inventor: HEMMING DAVID HENRY
IPC: A24D3/02
Filed: 1962-08-03
Abstract: 1,019,984. Cigarette filters. CIGARETTE COMPONENTS Ltd. July 31, 1963 [Aug. 3, 1962], No. 30015/62. Heading A2C. A method of manufacturing smoke filters comprises blending together 10-90% of "long" fibres (exceeding 1 inch staple) of viscose cellulose acetate or cotton and 90- 10% of "short" fibres (1.25 cm. staple or less) of mechanical or chemical wood pulp, sisal, waste textile such as linters or cellulose acetate, forming the blended fibres into a thin loosely coherent web condensing the web to a sliver and thereafter subjecting the sliver to conventional plug making operations, the fibres, after being formed into the web being bonded together at points of contact distributed along their lengths. To effect bonding powdered synthetic resin is dusted on to the web after the web has been lightly sprayed by means of an airless spray unit with a polymeric solution, e.g. dilute sodium carboxy methyl cellulose or polyvinyl alcohol to aid the retention of the powdered resin. The amount of powdered resin used depends on the "short" fibre content of the web. The web may be conveniently split into two and is brought into sliver form by garnitures. The sliver is preheated to fix the powdered resin in a tunnel heater from which it emerges in a coherent cylinder form which is coiled and placed in a can and taken to a plug making machine. Bonding is finally effected by heating the plugs in a high frequency heater. The powdered resin may be polyvinyl acetate, vinyl chloride, vinyl acetate co-polymer or a polyester resin. In a modification the resin may be applied to the web in the form of a slurry which is sprayed on to the web by means of a spinning disc.
Patent GB-197346-A (GB)
Title: Improvements in or relating to rubber tyres
IPC: B29D30/02
Filed: 1921-11-11
Abstract: 197,346. Plantation Rubber Manufacturing Co., Ltd., Luffsmith, W., and Dessau, M. M. Nov. 11, 1921. Non-metallic elastic bodies and cores. - Tyres are formed by folding or rolling-up a strip or strips of natural plantation or crepe rubber. In the form shown in Fig. 1, a wide strip a of such material is folded so as to enclose a narrower strip b and a fitting c of spongy rubber. The strip b may be arranged at the tread or rim part of the tyre. In the modification shown in Fig. 6, discs e punched out of the narrow strip d are laid between this strip and the wider strip a. Reference has been directed by the Comptroller to Specifications 4292/92, 25489/99, 13268/00, 2899/03, and 20993/11.
Patent GB-924191-A (GB)
Title: Improvements in or relating to roller supports for conveyor belts
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G39/04
Filed: 1958-09-20
Abstract: 924,191. Idler roller assemblies for belt conveyers. FISHER & LUDLOW Ltd. Sept. 21, 1959 [Sept. 20, 1958], No. 30137/58. Class 78 (1). In an idler roller assembly comprising a plurality of rollers mounted for free rotation on a bowed metal shaft 13 which is resiliently supported at each end as described in Specification 806,605, the hub 24 of each roller is provided with abutments 26 which engage with corresponding abutments of the adjacent rollers so as to prevent relative rotation between axially adjacent rollers. Each hub may be formed in nylon with projections 25 around which non- metallic material constituting the roller element 23 is moulded, the bore of the hub is tapered, as shown, so that only the central portion of the hub engages the shaft 13. In a modification, Figs. 7, 8 (not shown), the abutments of axially adjacent rollers are non-relatively rotatably connected through an intermediate connecting sleeve, the opposite ends of which are formed with abutments which engage with the abutments of the adjacent rollers. A dust-excluding flexible sleeve may be provided for enclosing the engaging abutments at each end of the connecting sleeve. The shaft 13 may be constructed as a flexible cable or as a helical spring.