baber/WOPTO huggingface dataset:
Patent GB-1512018-A (GB)
Title: Inhibiting forgery
IPC: B41M3/14
Filed: 1975-07-03
Abstract: 1512018 Credit cards and the like BRADBURY WILKINSON & CO Ltd 3 July 1975 [29 Aug 1974] 37831/74 Heading B6A A security document is printed with two different inks which, when viewed with the naked eye appear to have either same or contrasting colours and, when viewed through a suitable filter, for verification, show either a contrast or a different contrast respectively. The inks may form a two colour design of fine lines.
Patent GB-809571-A (GB)
Title: A fitting for supporting a lamp shade on a rod or like support
IPC: F21V17/00
Filed: 1956-12-11
Abstract: 809,571. Shade galleries. PEILL & P U T Z L E R GLASHUTTENWERKE G. m. b. H. Dec. 11, 1956 [Dec. 12, 1955], No. 37881/56. Class 75(2) A bowl shade 13 is supported from a pendant rod 1 by a gallery comprising a sleeve 2 axiallly adjustable along the rod 1 and having radial arms 6, 7, 8, to the outer ends of which are pivoted links 9, 10, 11 respectively which can be swung upwardly about their pivots, Fig. 1, to allow passage of the open upper end of the bowl thereover, and can then be swung downwardly to project radially outwardly for supporting engagement with the bowl neck, Fig. 2. As shown each arm 6, 7, 8 comprises thin parallel plates and the associated link is pivoted therebetween on a ring 12 threaded through the ends of the arms. To vary the radial projection of the links 9, 10, 11 in their operative position, the stop ring 3 on which the links bear may be adjustably mounted on sleeve 2.
Patent GB-340744-A (GB)
Title: Improvements relating to adjustable panels or screens for use on motor vehicles
IPC: B60J3/00
Filed: 1929-12-11
Abstract: 340,744. Vehicle windows. AUSTER, Ltd., AUSTER, L. W., and SMITHURST, P. A., 174, Barford Street, Birmingham. Dec. 11, 1929, No. 37977. [Class 20 (iii).] An horizontally pivoted panel or screen is balanced, in any position of adjustment by a torsion spring having one end anchored and the other end secured, directly or indirectly, to the panel. A glare visor 2, seen in plan in the Figure, is secured to a tube 1 pivotally mounted at its ends on pivots 12 on brackets 13, which are mounted on the standards of a front windscreen 3. Secured to and disposed within the tube 1 is a rod 4 carried by brackets 6. To the rod 4 is fixed a toothed sector 10 connected by gearing to a pivoted operating handle 11. The balancing mechanism comprises a blade torsion spring 17, or a coiled spring, disposed within the tube 1 and secured by pins 18, 20 to the rod 4 and fixed pivot 12 respectively. Angular adjustment of the visor produces a rotation of the rod 4 and the spring 17 is twisted. The blade spring may be normally straight or it may have a permanent twist and is so fitted that it has an initial strain when the visor is in the fully raised position and is arranged so that the strain is increased as the visor is lowered. The spring may alternatively be mounted in a tube parallel to the axis of tube 1 and in this case has its movable end connected to a rotatable part of the visor-operating mechanism. Specifications 329,822, [Class 83 (iv), Metals, Working], and 340,922, are referred to.
Patent GB-305018-A (GB)
Title: Improvements in starting devices for internal-combustion engines
IPC: F02B75/02
Filed: 1928-12-24
Abstract: 305,018. Ingersoll-Rand Co., (Assignees of Rathbun, G. J.). Jan. 28, 1928, [Convention date]. Starting; reversing.-In a multi-cylinder fourstroke engine started by means of compressed air, manually controlled means are provided for rendering the admission valves inoperative at starting, while permitting normal operation of the exhaust valves, and compressed air is admitted to each cylinder at every revolution of the crank-shaft and is exhausted by means uncovered by the piston at the end of its stroke. As shown in Fig. 2 each cylinder head H has admission and exhaust valves J each actuated from an eccentric T on a half-speed shaft S through a push rod R and a rocker arm Q provided with a bearing fulcrum abutment Z. For starting, compressed air is admitted to the combustion chamber F of each cylinder in turn by a nozzle r provided with a check valve s, and the admission valves J are held closed by the admission of compressed air beneath pistons d in cylinders c. A plunger h on the piston d is normally held by a spring e in engagement with the free end of the abutment Z, which is pivoted at k and has an arm p engaged by a spring q to cause the abutment to follow the movement of the plunger h. When air is admitted beneath the piston d, the abutment swings out of the path of the rocker Q and the corresponding valve J is not opened. Exhaust of the starting air takes place normally on one instroke of the engine piston, and through a terminal port b at the beginning of the succeeding instroke. The valves and valve gear for controlling the supply of compressed air to the nozzles r and the cylinders c are shown in Figs. 4 and 5. A cam shaft w driven at engine speed carries forward and reverse starting cams 2, 3, Fig. 5, adapted to actuate valves 4, 12 through levers 5, 9 pivoted on a shaft 8 mounted on eccentric bearings in the casing v. By means of a handle 26 the shaft 8 is turned from a normal position, in which the valves are not actuated, into a forward or reverse starting position, in which one or other set of levers 5 or 9 actuates the valves 4 or 12 to admit air from a chamber 14 through chambers 20 and pipes t to the starting nozzles r of each cylinder in turn. At the same time, air is admitted through a chamber 32 or 35 and a pipe g to the cylinders c by one of the valves 30, 33, Fig. 4, actuated through levers 28, 29 by a cam 27 on the shaft 8.
Patent GB-858036-A (GB)
Title: New pyridazines
Inventor: TEOTINO UBERTO
IPC: C07D237/24
Filed: 1958-11-26
Abstract: The invention comprises compounds of the formula: <FORM:0858036/IV(b)/1> (wherein R is an alkyl or hydroxymethyl group; X is a hydroxyl, alkoxy or dialkylaminoalkoxy group, and Z is an ethylene or vinylene group), and the preparation thereof by the processes of the examples, which may be summarized as follows: (a) the compounds wherein X is an alkoxy or dialkylaminoalkoxy group and R is an alkyl group can be made from the corresponding non-alkylated esters by treatment with an alkyl halide; or alternatively from the already alkylated acyl chloride by treatment with the selected alcohol; (b) compounds wherein R is a hydroxymethyl group can be made from the nonhydroxymethylated esters by treatment with formaldehyde; (c) the free acids are prepared by hydrolising the esters prepared as mentioned above.
Patent GB-914414-A (GB)
Title: A method for the preparation of a urethane modified ethylenically unsaturated vegetable oil
Inventor: WAYTHOMAS DONALD JAMES
IPC: C08G18/36
Filed: 1960-11-08
Abstract: A method for the preparation of a urethane modified ethylenically unsaturated vegetable oil having drying properties is characterized by reacting a diisocyanate and a diol system comprising a diol ester of an ethylenically unsaturated vegetable oil and 3 to 18% based upon the weight of the diol ester of a diol in which the hydrocarbon groups are separated by not more than 4 carbon atoms and having a molecular weight of less than 120, the amount of diisocyanate employed being substantially equivalent to the total hydroxyl of the diol system and the amount of diol ester being sufficient to produce a final oil length of 30 to 80%, the reaction being continued under heating until the resultant urethane modified oil possesses substantially no free isocyanate.  The reaction is usually performed in an inert organic solvent, and may be effected in two stages, the addition of reactants and first heating taking place below 130 DEG F. and the final stage at above 130 DEG F.  Linseed, safflower, perilla, tall and soybean oils are specified vegetable oils.  Glycerine, pentaerythritol and trimethylol propane or ethane are suitable polyols for the preparation of the diol ester.  In examples (1) a modified drying oil is produced as a semi-solid by reacting a diol ester (from linseed oil and pentaerythritol), propylene glycol (or a butane diol) and tolylene diisocyanate; (2) a similar reaction is effected in aromatic or mineral spirits solvent solution; (3) similarly reacted are a diol ester (from pentaerythritol, glycerine and distilled tall oil fatty acids), 2,4-pentanediol and tolylene diisocyanate in xylene solution; (4) a dihydroxy ester (from soybean oil and pentaerythritol), 1,3-butylene glycol and tolylene diisocyanate are reacted.
Patent GB-1115532-A (GB)
Title: Improvements in or relating to electrodialysis process and apparatus
IPC: C02F1/52
Filed: 1965-09-08
Abstract: The overall resistance in an electro-dialysis cell for removing mineral salts from aqueous liquids, which are caused to flow through compartments defined by spaced anion and cation exchange resin membranes, is reduced by selecting membranes which differ in their porosities, as measured by their moisture holding capacities, by at least <PICT:1115532/C6-C7/1> 2%.  Typical anion exchange resin membranes comprise quaternized copolymers of mono- and poly-vinyl aromatics while typical cation exchange resin membranes comprise sulphonated derivatives of similar copolymers, the anionic membranes having a porosity of 39 to 42% and the cationic membranes having a porosity of 44 to 49%. Liquids treated by the process include sugar syrups, gluten-containing liquids and proteinaceous liquids such as whey. As described, the cell comprises a stack of say 100 compartments formed by alternating anodic and cathodic membranes separated by polythene spacers.  The anode and cathode of the cell are each provided in rinsing compartments defined by respectively anodic and cathodic membranes sandwiched between polythene grids, the grid adjacent the electrodes providing access for the rinsing liquid while the grid adjacent the treatment cells allows access of a brine or concentrating liquid.  As shown, four stacks 41a to d are fed in series with whey pumped from a tank 42, the brine or concentrating liquid being fed from line 46 in parallel to each stack.  The resistivity of the whey is measured before entering the stacks and the value recorded at 51 and used to control the action of a second controller-recorder 51 which when the resistivity of the brine return stream reaches a selected value opens a valve 59 which adds fresh water to the brine circulation system which has an overflow 49.  As the resistivity of the whey increases during the operating cycle the applied voltage is increased via a control device 63 controlled by the recorder-controllers 51, 52.
Patent GB-1477949-A (GB)
Title: Apparatus for engraving printing surfaces by means of laser  light
IPC: B23K26/08
Filed: 1975-09-18
Abstract: 1477949 Facsimile apparatus RUDOLF HELL GmbH 18 Sept 1975 [2 Oct 1974] 38453/75 Heading H4F [Also in Division B6] The desired energy distribution, Fig. 4, across a laser beam engraving a printing surface 1, Fig. 3, is obtained by locating an opaque or light-absorbing body 5 in the central region of the laser beam. The cross-section of body 5 is smaller than the cross-section of the laser beam, which may be optically enlarged (Fig. 8, not shown). The body 5 may be square, circular or star-shaped, and may comprise a transversely arranged mirror enclosed in a glass body (Figs. 5-8, not shown).
Patent GB-965985-A (GB)
Title: Electric spark gap with indestructible insulation
Inventor: ANDRE THIERRY
IPC: H01J21/00
Filed: 1962-10-11
Abstract: 965,985. Spark apparatus. COMMUNAUTE EUROPEENE DE L'ENERGIE ATOMIQUE (EURATOM). Oct. 11, 1962 [Oct. 20, 1961], No. 38599/62. Heading H1D. Spark-gap apparatus comprises an electrode 1 separated from an electrode 2 by a disc 3 of insulating material, the centre portion 1b of the electrode 1 projecting through the disc 3 so that a spark gap is formed between the portion 1b and the electrode 2, the insulating disc 2 being made of a material, such as polytetrafluoroethylene, which is capable of having its surface layer vaporized by the heat generated by the spark discharge at least over the annular area 3a, the vaporized products and metallic particles from the electrodes 1h, 2 being deposited on the disc 3 over the outer annular area 3b thus ensuring that the disc 3 retains its insulating property. An electrode element 2a surrounded by an insulating member 6 may be inserted into the electrode 2 so as to form a trigger spark gap 2, 2a to provide pre-ionization of the spark gap 1b, 2.
Patent GB-1236238-A (GB)
Title: Improvements in or relating to fuel injection systems
Inventor: STRITZKO VILEM
IPC: F02M65/00
Filed: 1968-08-13
Abstract: 1,236,238. Testing fuel injection pumps. MOTORPAL JOHLAVA NARODNI PODNIK. Aug. 13, 1968 [Sept. 6, 1967], No.38672/68. Heading F1A. In an apparatus for testing fuel injection pumps the amount of fuel injected, the engine speed and the start of the injection stroke are simultaneously checked by means of a measuring tube, rev counter and stroboscope respectively. Fuel from an injection pump enters the apparatus via a pipe (2) Fig. 2 (not shown) and is led by a duct 4 and port 5 to depress the piston 6 until a channel 10 is opened whereupon fuel passes via a groove 13 on a control slide valve 11 to an overflow. On releasing pins 12 and 32 the valve 11 moves to abut a stop 25, and the fuel travels via an annular recess 26 into a measuring tube 18. As the valve moves to abut stop 25 a pin 39 on a lever 40 pivoted at 41 follows the movement of a finger 38 on the valve; this causes a pin 43 and pawl 44 to move and the pawl engages a ratchet 48. The pawl is carried on an arm of a lever 45 pivoted at 46, the piston 6 acts on the other arm so that the ratchet is revolved at each injection stroke. After a certain number of strokes a stop 49 in the ratchet causes a lever 50 to strike the stop 25 and release the valve 11, which moves to the left and fuel is again passed to the overflow via a groove 29 and channel 30, and the inlet 27 to the measuring tube is closed. A tappet 53 strikes a stop 56a each downward movement of the piston to complete an electric circuit which includes the rev counter and stroboscope. The valve may be returned to its original position by means of the manually actuated tappet 28.
Patent GB-960982-A (GB)
Title: A method of operating furnaces for the production of steel, and the formation of pellets for use in such method
IPC: C21C5/30
Filed: 1962-10-12
Abstract: High grade iron-ore concentrates containing at least 60% of iron are ground to a size analysis in which at least 70% is below 60 m  and not more than 10% is over 250 m  before forming into pellets which are used in the green unburnt state for controlling the temperature in a steel-making furnace.  Alternatively 5-20% of the ore may be reduced to an analysis in which at least 90% is below 40 m  and not more than 5% is over 60 m , and then mixed with the bulk of the ore having 30-65% below 60 m .  A proportion of flue dust may be added to the concentrates; a binder, preferably slaked lime, may also be used, in which case the degree of size reduction necessary may be less. Other binders referred to are bentonite, fuller's earth and montmorillonite.  The pellets are preferably dried by exhaust gases or hot air before use.ALSO:In the refining of steel, particularly in a converter, the temperature is controlled by the introduction of high-grade iron-ore concentrates in the form of green unburnt pellets. The pellets may also contain a proportion of flue dust, and may be formed with a binder such as slaked lime.  They may be dried by waste furnace gases or by hot air before use.
Patent GB-1144047-A (GB)
Title: Mixing valves
Inventor: TOPLISS PATRICK GEORGE
IPC: F16K11/16
Filed: 1967-08-23
Abstract: 1,144,047. Valves. GESSEY & BRAMLEY (LIGHT ENGINEERS) Ltd. 23 Aug., 1967, No. 38846/67. Heading F2V. A mixing valve has a casing 3 with a hotwater inlet 25, a cold-water inlet 10 and an outlet 8. Each inlet has a valve plug 30, 41 biased by a spring 40, 43 to a closed position and opened by a cam 67 on a rotatable shaft. Each plug has a fluted portion sliding in a bore of a member 11, 27 which sealingly mounts on the casing 3, a sleeve 14, 26 having a side connection to the respective water source. In each side portion a check valve 80, 81 cooperates with a seat 78, 79 and has its movement controlled by a tapered end of a screw 90, 91 moving in a recess of the check valve disc. The screw can be moved to keep the valve closed when the mixing valve requires maintenance. The cam 67 can be moved to open either or both of the valve plugs and in the latter case less hot water is permitted to flow through the open valve than cold due to the flutes on the hot water valve plug being either less widely spaced or shorter.
Patent GB-979024-A (GB)
Title: Improvements in or relating to electrolytic capacitors
Inventor: EVERITT RONALD JOHN
IPC: H01G9/02
Filed: 1962-10-15
Abstract: 979,024. Capacitors. DUBILIER CONDENSER CO. (1925) Ltd. Oct. 15, 1963 [Oct. 15, 1962], No. 38856/62. Drawings to Specification. Heading H1M. An electrolytic capacitor of the roll type having e.g. aluminium or tantalum foil anodes which may be of the kind described in Specification 891,327, incorporates as a hydrogen absorbent a small quantity of an organic compound having one or more oxime groups, e.g. quinone dioxime, which may be dissolved in the electrolyte, incorporated in the porous separator, or mixed with the adhesive fixing the separator to the foils, for absorbing hydrogen gas evolved in the capacitor. The latter may be placed in a metal container closed by spinning the edge over an insulating disc having a central rivet and tag connected to one electrode and the container connected to the other.
Patent GB-345300-A (GB)
Title: Improvements in seats
IPC: B60N2/70
Filed: 1929-12-19
Abstract: 345,300. Spring-mounted seats. MARSHALL, J. E. L., Ellerslie House, Sandiacre, Derby. Dec. 19, 1929, No. 38874. [Classes 52 (ii) and 52 (iv).] The back of a seat is secured to a floating seatframe B supported by peripheral springs C above a base frame which also carries vertical upholstery springs F for the seat springing. The movement of the floating frame may be limited by chains J or other flexible and inextensible connections between its front edge and the base frame.
Patent GB-1006284-A (GB)
Title: Preparation of polyvinyl alcohol microcapsules
IPC: B01J13/10
Filed: 1961-10-31
Abstract: 1,006,284. Microcapsules. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 31, 1961 [Nov. 2, 1960], No. 38881/61. Heading B8C. Microcapsules composed of a cross-linked polyvinyl alcohol (P.V.A.) enclosing a liquid comprising or consisting of a low viscosity, low molecular weight non-polar solvent (e.g. hexane, octane, toluene, xylene, diethyl benzene, dibutylcarbitol, tritolyl phosphate, tributyl phosphate or silicones) are produced by forming an emulsion having a non-polar solvent phase and a polyvinyl alcohol in polar solvent phase and reacting the polyvinyl alcohol with a crosslinking agent at the interphase between the phases of the emulsion. This may be achieved by precipitating the P.V.A. from a water, glycerin, low molecular weight polyethylene glycol, aminoalcohol, amide or liquid ester solution by adddition of an organic or inorganic agent, e.g. a lower aliphatic alcohol, or inorganic salt such as sodium, ammonium or magnesium sulphate or by cooling or spray drying the emulsion and treating the P.V.A. with a cross-linking agent or catalyst, e.g. an acetal-forming agent or a polyfunctional compound having at least two alcohol-reactive radicals, e.g. phthalic anhydride, formaldehyde, acetaldehyde, p-phenyl diisocyanate, toluene diisocyanate and boric acid, dimethylol urea or tris-(hydroxymethyl) nitromethane.
Patent GB-1169361-A (GB)
Title: Improvements in Fluid Valve Means for Mine Roof Supports
Inventor: TOWN FRANK
IPC: F15B13/02
Filed: 1965-09-14
Abstract: 1,169,361. Advancing mine roof support controls. W. E. & F. DOBSON Ltd. 28 Nov., 1966 [14 Sept., 1965], No. 39088/65. Heading E1P. [Also in Divisions EF2 and G3] A valve device is applied to an arrangement for extending and contracting hydraulic mine roof supports 13, 14, 15, and for advancing the supports by a cylinder-and-ram 24, 25. The device replaces in part a known arrangement in which there is a basic control block 1b, Figs. 1-5. (not shown) to which is fitted a manual control block 1a with manual valves (V, V1) controlling the supports and the advancing ram locally. In the present arrangement, the basic block is retained, and this includes throughway passages comprising a main feed passage 4a, a return passage 5b, and service passages 7, 8, 9 to the props, along with pressure holding and overload valves such as 16 and 52, 53, 54. A second valve. block fixed to the basic. block contains main fluid feed, return, and service passages registering with those in the basic block. The second valve block also contains a double seated cone automatic selector valve device 29b, 29c controlling the passages. This is operated by a control pressure signal received through a passage such as the passage 65 which extends from an outer surface of the block and supplies pressure through a fixed hollow stop 35 to move the valve members 29b, 29c apart. A third valve block 3 fixed to the second block is interchangeable and is arranged to provide alternatively for operation (a) in sequence with other supports by transmitted pressure signals, (b) remotely by electrical control, through a solenoid valve incorporated with the block, or (c) by a local manual valve. In each case, the third block has a pressure signal passage 41 registering with the passage 65 in the second block. As shown, the block 3 is arranged for operation in mode (a) the pilot pressure signal being received at a connection 41. An output signal to the support next to be: operated goes from a connection 44. The solenoid valve (97) Fig. 22 (not shown) communicates with an alternative signal passage 90 in the second block.
Patent GB-1533763-A (GB)
Title: Flexible damped bearing assembly
IPC: F16C27/02
Filed: 1976-09-21
Abstract: 1533763 Bearings CARRIER CORP 21 Sept 1976 [3 Oct 1975] 39102/76 Heading F2A The subject-matter of this Specification is substantially the same as that described in Specification 1,533,760 but the claims are concerned with the feature that the seals which seal the fluid film cavity are located such that they are not compressed by the movable bearing support member as the member moves in compliance with the shaft, whereby the seals are precluded from interacting with the fluid film to contribute unwanted damping to the system.
Patent GB-1520282-A (GB)
Title: Private automatic branch exchange system and apparatus
IPC: H04Q3/62
Filed: 1975-09-24
Abstract: 1520282  Controlling cross-point matrices SOLID STATE SYSTEMS Inc 24 Sept 1975 [7 Oct 1974] 39115/75 Heading H4K In a cross-point matrix for interconnecting subscriber lines SL1-SLm (rows) and trunks T1-Tn (columns) each row is provided with a control arrangement All-ALm operative to enable/disable any crosspoint(s) in its row upon receiving appropriate instructions from central control.
Patent GB-1100534-A (GB)
Title: 16-alkyl-pregnanes
Inventor: HEWETT COLIN LESLIE
IPC: C07J5/00
Filed: 1963-10-04
Abstract: Novel D 1,6 - 16a  - alkyl - progesterones which may also contain a 6-alkyl substituent are prepared by dehydrogenation (e.g. by halogenation and dehydrohalogenation or with selenium dioxide or a quinone having an oxidation-reduction potential of less than -0.5v. or microbiologically with Corynebacterium simplex) of the corresponding D 4-, D 1,4- or D 4,6-steroids.