baber/WOPTO huggingface dataset:
Patent GB-292210-A (GB)
Title: Improvements in or relating to speed governors
IPC: G05D13/18
Filed: 1927-03-08
Abstract: 292,210. Creed & Co., Ltd., and Salmon, R. D. March 8, 1927. Centrifugal governors; transmitting- mechanism. - In a synchronous governor of the Baudot type, the weight which when free and with the governor at rest would be brought to' the centre of the shaft so that its centre of gravity would be coaxial with the shaft with the spring in an unstrained conditin, is made in the form of a U-shaped lever 1 the spring 3, Fig. 4, being connected at its centre of gravity. and one end being pivoted at 1<a> to the disc. The other end 5 forms an electric contact and moves between a contact 6 and a stop 7. fixed to the disc. The positions of the contact strip and pivot are determined by the speed at which the governor is to act. The movable and fixed contacts are connected to rings 9 on the disc which are engaged by brushes which carry the controlling current. Normally the contact 5 is held free of the stop 7 and the contact 6. The governor controls the speed of a motor used for actuating telegraphic apparatus &c. When the motor used is a shunt-wound electric motor, the electric contact fixed to the disc is arranged at the outer side of the weight, and for a series wound motor may be arranged at tEe inner side. In a modified construction two independent governors are carried by the same disc to operate at different speeds. A bent leaf or other spring may be used in lieu of a helical spring.
Patent GB-995600-A (GB)
Title: Improvements relating to fluid pressure actuators
IPC: F01B9/04
Filed: 1964-02-17
Abstract: 995,600. Fluid-pressure apparatus. FLO-TORK Inc. Feb. 17, 1964 [Feb. 15, 1963], No. 6514/64. Heading F1P. A fluid pressure actuator comprises a body 10 having a gear chamber 12 intersected by a bore 25 through which passes a tube 26 forming a cylinder 27 for an axially movable double-acting piston 28, the tube having end caps 41, 42 secured to the body 10 by tie-rods (not shown) and an opening 29 which allows a pinion located in the chamber 12 to engage a rack 30 formed on the piston 28. The pinion 18, is integral with, or secured to, an output shaft journalled in bearings in the body 10. The end caps 41, 42 are provided with ports 46, 47 through which fluid can be supplied or exhausted to effect the required direction of rotation of the output shaft. The tube 26 has an intermediate diameter portion 37 which is a press fit in the body 10 against a shoulder 39. The stroke of the piston 28 is adjustable by internally and externally threaded stops 81 screwed into the ends of the piston and locked by screws 82. In an alternative method of adjusting the stroke (Fig. 5, not shown) internally threaded washers of the desired thickness are located on the inside of the caps 41, 42. In a second construction the pinion is additionally rotated by a second piston movable in a tube located in a second bore on the opposite side of the chamber.
Patent GB-725705-A (GB)
Title: Improvements in foils and coatings from pastes of vinyl chloride polymers and plasticisers
IPC: B32B27/00
Filed: 1953-03-10
Abstract: A paste for the production of foils or coatings comprises a vinyl chloride polymer or a copolymer thereof with a copolymerizable monomer such as vinyl acetate, methyl acrylate or vinylidene chloride, one or more plasticizers and an aqueous emulsion of paraffin wax, the amount of paraffin wax being from 1 to 10 per cent by weight of the amount of paste.  Plasticizers and plasticizer mixtures specified are (a) dioctyl phthalate and diethylhexyl adipate in the ratio 1 : 1, (b) dibutyl phthalate, tricresyl phosphate and the esters of aliphatic C6-C7 fatty acids and triglycol in the ratio of 1 : 1 : 1 and (c) dioctyl phthalate.  The paraffin wax emulsions are preferably of 20 to 60 per cent strength and may contain small amounts of high molecular weight alcohols, oils, other waxes, resins and colloidal aluminium hydroxide.
Patent GB-822956-A (GB)
Title: Ignition means for enclosed gas heated apparatus
Inventor: BUCK CHRISTOPHER HEARN
IPC: F23Q9/00
Filed: 1957-02-27
Abstract: 822,956. Igniting burners. RADIATION Ltd. Feb. 20, 1958 [Feb. 27, 1957], No. 6537/57. Class 75(3) An igniter for a gas heater of the kind having a main burner 6 enclosed in a combustion chamber 5 supplied with air through a duct 8 comprises a pilot burner 19 mounted in an ante-chamber movable relative to the pilot burner between a position in which a gap 26 in a wall 25 of the ante-chamber. permits the flame of the pilot burner to extend toward the main burner 6, the ante-chamber then being closed to the exterior of the heater, and a position in which the wall 25 isolates the pilot burner from the main burner 6 and the interior of the heater, the pilot burner then being accessible from the outside of the heater. The wall 25 is secured to a flap 23 hinged to a frame 18 secured to an aperture in the front wall of the combustion chamber 5, the wall 25 and flap 23 forming the ante-chamber. The outward movement of the flap 23 is limited by a lip 27 on the wall 25 engaging a stop plate 29 secured to the frame 18. The flap 23 has a window 24. A rod 33 is pivoted to the flap 23 and engages a notched cam 32 on the spindle 31 of the gas control valve 20 when the flap 23 is open to prevent opening of the valve to a greater extent than is required for supplying gas to the pilot burner. The flap 23 is secured in closed position by a manually operated catch 34. The heater is enclosed in a casing 4 having a hinged flap 9 giving access to the flap 23. The duct 8 supplying the combustion air is connected to a duct extending through the wall of the room in which the heater is mounted and the combustion gases are likewise conveyed by a duct to the outside of the room. The room air passes through the casing 4 and is thereby heated.
Patent GB-236974-A (GB)
Title: Improvements in or relating to the manufacture of knitted fabrics
IPC: D04B1/02
Filed: 1924-03-14
Abstract: 236,974. Pfrommer, B. March 14, 1924. Knitted fabrics; parallel machines.-A ribbed plated fabric is made from three threads a, b, c, a being a plating thread fed to all needles, and b, c being ground threads fed each to alternate needles. The fabric so formed does not curl at the edges when cut. If the plating thread a is of a non-felting kind, felting of the fabric as a whole can be avoided, and by choosing threads of different colours, various colour effects are obtainable. The stitch-drawing and other cams and the thread guides are so arranged that the thread a is first laid on each needle, and immediately after the threads b, c are laid, one on one set of needles and the other thread on the other set.
Patent GB-1465839-A (GB)
Title: Ignition system for internal combustion engines
IPC: F02P7/03
Filed: 1974-02-13
Abstract: 1465839 Ignition systems; ignition plugs HITACHI Ltd 13 Feb 1974 [16 Feb 1973] 6569/74 Heading F1B An ignition system for an internal combustion engine includes a plurality of ignition plugs 5A to 5D adapted for connection to respective cylinders of the engine (not shown) a plurality of ignition coils 4A to 4D each disposed in close proximity to its respective ignition plug, each of the ignition coils having a primary winding and a secondary winding and connecting means for connecting the secondary winding to its associated ignition plug. The system also includes a power transistor 2 for controlling the primary winding of each ignition coil in turn, distributing means 3 having reed relay switches 3A-3D associated respectively with the ignition coils and reed relay energizing means 3E for energizing the reed relay switches in a predetermined sequence in synchronism with the rotation of the engine, each of the primary windings of the ignition coils being successively and selectively connected to the power transistor 2 through its associated reed relay switch so as to supply the ignition coils with energy derived from a power supply 1 to which the system is connected, in the predetermined sequence. Power transistor control means 7 is arranged to switch the power transistor 2 so as to abruptly change the voltage across the primary winding and to generate a high voltage in the secondary winding of the selected ignition coil, the reed relay energizing means 3E and the power transistor control means 7 being operated to turn on the power transistor 2 after the reed relay switch is switched on and to switch off the reed relay switch after the power transistor is turned off as shown, an ignition spark is produced each time the primary current of the associated ignition coil is interrupted. In a modification (not shown) the system is of the capacitor discharge type, the capacitor being discharged through each primary winding in turn under control of the power transistor. The ignition coils may be mounted on the ignition plugs or on the cylinder head.
Patent GB-973009-A (GB)
Title: A copying machine,particularly a copy milling machine
IPC: B44B3/00
Filed: 1962-02-20
Abstract: 973,009. Copy-milling. H. DECKEL, and F. W. DECKEL. Feb. 20, 1962 [Feb. 21, 1961], No. 6628/62. Heading B3K. A copying machine comprises a finishing tool 76 mounted on a parallel linkage 62, 64, 66, 68 and an independently-mounted roughing tool in a head 106 movable from an inoperative position outside the area swept by the linkage into at least two working positions. A worktable 26 movable in two directions by hand wheels 30, 32 is adjustable vertically, by a wheel 22, on a base 12 which also carries a vertically-adjustable table 18. The table 18 supports a pattern table which is adjustable by screws 38, 40 and is linked for movement with the table 26. The base 12 is vertically adjusted by a hand wheel 44 or a motor 46. A slide 50 is movable at right-angles to the base 12 and can be clamped by eccentrics. The slide 50 supports a vertically-movable carrier 62 connected by the parallel links 64, 66 to the intermediate member 68 in which slides a beam 72 supporting holders for the finishing tool 76, driven by a motor 90 and belt gearing, and a tracer 80. The slide 50 and the beam 72 are connected by a pantograph 82 which can be guided by an adjustable handle 88. A slide 100 mounted on the slide 50 supports the angularly-adjustable head 106 carrying the axially-adjustable roughing tool spindle 104 driven by a motor 102 at the other end of the slide 50. A detachable arm 114 on the slide 50 carries an adjustable tracing unit 118 for use with the roughing tool. Its tracer 120 is movably mounted and controls a light beam projected on to a screen 124. When the work and pattern are traversed during roughing, the light beam is kept in one position by manipulation of the handle 44. The roughing slide 100 is adjustable into two working positions to enable the cutter to cover all of the work the belt drive means for the finishing cutter having been removed.
Patent GB-144803-A (GB)
Title: Improvements in and relating to wireless signalling systems
IPC: H03C7/02
Filed: 1919-03-17
Abstract: 144,803. British Thomson - Houston Co., (General Electric Co.). March 17, 1919. Vacuum tubes.-In a system of wireless telephony an electron discharge device is employed having two filaments 23, 24 and two grids 25, but no third or plate electrodes. The microphone currents operate through the transformer 26 to put variable potential on the grids 25, the secondary being divided and so connected that the two grids become positive and negative at the same time. The filaments are connected by leads 27, 28 to an oscillation transformer or resonant circuit which couples the electron device to an aerial in which oscillations are produced from some independent source. An oscillating potential of high value is thus maintained between the two filaments, and while the grids are at positive potential, current flows alternately at the oscillation frequency from filament 23 to filament 24 and conversely, thus diverting energy from the aerial in accordance with the variations of the speaking current during each half cycle.
Patent GB-453129-A (GB)
Title: Improvements in treating sugar
IPC: C13B20/08
Filed: 1935-03-04
Abstract: Syrup made from affinated sugar is decolourized by adding alkaline earth metal hypochlorite together with acids and acid salts such as phosphoric acid and phosphates, oxalates and borates, which react with the hypochlorite to precipitate the ash forming constituents and form a flocculent precipitate which further assists refining.  The treatment is preferably conducted in slightly alkaline solution and at ordinary temperatures.  The residual chlorine may be removed by hydrogen peroxide or by filtration through bone char or activated carbon filters.
Patent GB-726445-A (GB)
Title: Production of plates for photomechanical printing processes
Inventor: GRESHAM DONALD CHARLES
IPC: G03F3/04
Filed: 1953-03-11
Abstract: 726,445. Photomechanical printing plates. McCORQUODALE & CO., Ltd. Feb. 10, 1954 [March 11, 1953], No. 6765/53. Class 98 (2). To avoid colour fringe around black areas in multicolour printing as with three colour plates and a black printer, a positive transparency is prepared in which the image areas are a record solely of the black areas of an original multicolour picture which is to be reproduced, are of identical dimensions therewith and are white or pale in colour; the transparency is registered with the original picture so that the image areas mask the black areas; colour plates are prepared from the registered assembly, and a black printing plate is made from the original without the transparency or with the latter replaced by a similar but blank transparent sheet. In an example an original picture is photographed in a process camera on to a high contrast plate to the same size, the image is developed in a caustic soda-hydroquinone developer, acid stopped, etch-bleached in a solution comprising copper sulphate, citric acid, potassium bromide and hydrogen peroxide, rinsed, treated in potassium iodide solution to iodize the residual silver halide, rubbed while wet with cotton wool to remove any remaining unwanted areas but without touching the iodized image areas, dried, and then registered with the original picture for colour separation exposures and further treatment as outlined above. The masking exposures may be effected on to a panchromatically-sensitized film or plate and with a light designed to afford high image density in areas surrounding the black areas of the original picture.
Patent GB-545004-A (GB)
Title: Improvements in or relating to free-wheel mechanisms
IPC: F16D41/22
Filed: 1940-04-15
Abstract: 545,004. Free-wheel clutches. ANDREAU, J. E. April 15, 1940, No. 6811. Convention date, April 15, 1939. [Class 80 (ii)] A screw-operated one-way friction clutch has combined with it a free-wheel device, which acts as a pilot and serves to effect the engagement of'the friction clutch. The driving-shaft 1, Fig. 1, has right-and-left-handed screws 4, 4' engaging clutch-plates 6, 6', which, when moved towards each other grip a disc 7 splined to the driven wheel 2. The outward movement of the clutchplates is limited by abutments 5, 5<SP>1</SP>. The disc 7 and the clutch-plates are connected by a freewheel device 3. When the shaft 1 rotates, the free-wheel 3 engages, and the inertia of the wheel 2 prevents the clutch-plates from being frictionally rotated by the shaft, so that they move towards each other and grip the disc 7. When the shaft stops, the wheel 2 overruns, and the clutch-plates, since they continue in rotation, move apart. The clutch-plates and the disc 7 may be of wedge. formation, as shown in Fig. 2, to increase the friction. The abutments 5, 5<SP>1</SP> may be adjustable to vary the extent of movement of the clutch-plates and compensate for wear. The adjustment may be effected automatically by ratchet-mechanism operated by the clutch-plates.
Patent GB-797911-A (GB)
Title: Improvements in or relating to vehicle chassis frames
IPC: B62D21/00
Filed: 1956-03-05
Abstract: 797,911. Motor vehicle frames. WANSBROUGH, A. G. Dec. 19, 1956 [March 5, 1956], No. 6864/56. Classes 79(3) and 79(4) [Also in Group XXXII] A vehicle chassis frame comprises two overlapping spaced portions each of which comprises two laterally spaced longitudinal members 10, 11 and 18, 19 to which are secured two spaced cross members 12, 13 and 21, 22 so as to form two horizontal four-sided frames connected together by upright members 31 to 34 to form other four-sided frames which extend in an up and down direction, each of these frames being provided with at least one diagonally extending tie member 36, 37, 39, 40, so that a rigid box-like structure is provided between the overlapping portions of the two pairs of members 10, 11 and 18, 19, which members extend from the box-like structure in cantilever fashion. As shown in the Figure accompanying the Provisional Specification the horizontal frames may also be provided with diagonally extending tie members 35 and 38. Additional cross members 14, 15 and 20 may extend beyond the longitudinal members, and the cross members 12 to 15 may be connected by additional longitudinal members 16, 17. Alternatively, separate outrigger members 74 (Fig. 7) may be welded to the longitudinal members 10, 11. These members 74 are of outwardly diminishing channel section and are welded at 76 and 79 to channel members 16. A back axle engine unit may be attached to one or more of the members 22, 13, 14 and 15. As shown in Fig. 6 the junctions of the longitudinal members, cross members and vertical members are welded together and strengthened by means of channel shaped connecting members 60 and 64 having triangular flanges 61, 62 and 65, 66 respectively. The longitudinal members 18, 19 are connected by a cross beam 42 comprising two vertical plates 45 provided with flanges 46 and 48, and downward extensions at each end. An arched plate 49 is welded between the plates 45 and provided with anchorages for a cross spring (not shown) for the front wheel suspension (see Group XXXII). Specification 736,208 is referred to.
Patent GB-311035-A (GB)
Title: Improvements in metallic packings for piston rods and the like
IPC: F16J15/28
Filed: 1928-03-05
Abstract: 311,035. Hauber, F. March 5, 1928. Packing, metallic.- In packing of the type comprising two or more segmental rings a, b arranged side by side to break joint and compressed by means of split or other spring rings c, d, the segments of adjacent rings are pivoted together in pairs as near their ends as possible by rivets i. The heels o of the segments may be cut away.
Patent GB-954122-A (GB)
Title: Improvements in or relating to coal cutting machines
Inventor: WITHAM BERTRAM
IPC: E21C25/10
Filed: 1962-02-22
Abstract: 954,122. Mineral-mining machines. HEELEY (MINING MACHINERY) CO. Ltd. Feb. 15, 1963 [Feb. 22, 1962], No. 6873/62. Addition to 906,023. Heading E1F. The rotary cutter drum of the referred to parent Specification is modified in that the sockets 26 of the cutter pick boxes 24 of the drum are of tapered configuration. Orientating rods 42 secured to the pick body co-operate with projections 46 on a pick box to cause correct orientation of a pick 30 when entered into the box.
Patent GB-1182770-A (GB)
Title: 3-Oxo-2,3-Dihydro-1,4-Benzoxazine Derivatives
IPC: A61K31/535
Filed: 1969-02-07
Abstract: 1,182,770. Benzoxazine derivatives. LABORATOIRE ROGER BELLON. 7 Feb., 1969 [9 Feb., 1968], No. 6909/69. Heading C2C. Novel compounds (I) in which R 1  and R 2  are H or C 1-3  alkyl and R is C 1-3  alkyl optionally substituted by one or more halogen atoms are prepared by reacting an acid halide RCO Hal or an acid anhydride (RCO) 2 O with the appropriate 6-unsubstituted benzoxazine in the presence of a Lewis acid and optionally, where R 2  is hydrogen, alkylating the product to give the corresponding alkylated derivative.
Patent GB-1494251-A (GB)
Title: Bait for cockroaches
IPC: A01N25/00
Filed: 1975-02-19
Abstract: 1494251 Cockroach bait M-H SY 19 Feb 1975 [20 Feb 1974] 6912/75 Heading ASE A cockroach bait comprises by wt. 80-99.9% of a mixture of non-coagulated egg powder and a starch-containing vegetable product in the ratio 1:9 to 2:1, 0-19.9% of a watersoluble carbohydrate 0.1-2% of an insecticide, 0-1% of a preservative. The egg powder is preferably from hen's eggs and the vegetable product is flour, potato flakes, shredded wheat or rolled oats. A mixture of sugar and honey is suitable as the carbohydrate. The insecticide is preferably decachloro-octahydro-1, 3, 4- metheno-2H, 5H-cyclobuta-(c, d)-pentalene-2- one. Also mentioned are arsenic salts, thallium sulphate, sodium or other fluorides, borax, boric acid, hexachlorocyclohexane and 0, 0-dimethyl-(2, 2, 2-trichloro-1-hydroxy-ethyl) phosphonate or other organic phosphorus compounds. An organo-tin or -mercury compound is added as preservative.
Patent GB-871432-A (GB)
Title: Improvements in conveyor chains
IPC: B65G17/42
Filed: 1958-03-04
Abstract: 871,432. Conveyer chains. FELMINGHAM, R. J. March 4, 1959 [March 4, 1958], No. 6933/58. Class 78 (1). [Also in Group XXV] In a conveyer chain of oval-link type, e.g. a slat conveyer chain having slats 8 secured to alternate links 1 of the chain, the links 1 are formed as open links for connection by closed links 5, each open link 1 having a portion cutaway of such size that the closed links connected to it must be moved longitudinally and through an angle of elevation or (as shown) depression to their normal line of travel to release them from the open link.
Patent GB-181090-A (GB)
Title: An appliance for the regular and certain firing of top-fired continuous and chamber kilns for clayware, by mechanical means
IPC: F27D3/00
Filed: 1921-03-03
Abstract: 181,090. Procter, J. March 3, 1921. Charging. - Apparatus for supplying fuel to topfired continuous and chamber kilns comprises a hopper A in which rotate screws B on plates b which have holes b<1> registering with holes a, slides a<1> regulating the amount of fuel. The screws B are driven by star-wheels from the shaft c carrying the right- and left-hand screws C delivering the fuel to two or more feed-holes c<2>. In the modification shown in Fig. 5, the screws B are dispensed with, the fuel over the plates b being agitated by the rods b<5>.
Patent GB-707702-A (GB)
Title: Improvements in valves provided with a cylindrical plug
IPC: F16K5/04
Filed: 1952-03-18
Abstract: 707,702. Valves. BAYARD, G. March 18, 1952 [March 19, 1951], No. 7009/52. Class 135 A plug cock having a hollow body 1, Fig. 2, with a transverse bore 1a opening into flow branches 2, 3 and housing a rotatable cylindrical plug 16 having a transverse bore 17 which may be brought into and out of register with the bore 1a has a liner 5 having a close fit in the body and a clearance fit with the plug and rubber packing rings 14 engaging the plug and the body. The rings 14 are housed in recesses 8 formed by the ends of the liner, the body, and force fit sleeves 11 in the bore la.