baber/WOPTO huggingface dataset:
Patent GB-1217273-A (GB)
Title: Improvements in control systems for rolling mills
Inventor: ANDERSSON STURE
IPC: B21B37/52
Filed: 1968-05-24
Abstract: 1,217,273. Automatic control of rolling mills. ALLMANNA SVENSKA ELECTRISKA A.B. May 24, 1968 [May 26, 1967; April 19, 1968J, No.24825/68. Heading G3R. In a tension control system for a wire rolling mill of the type wherein roll pairs 1 - 5 are respectively driven by electric motors 11 - 15 each having a speed control circuit comprising a thyristor regulator 16, a proportional integrating transistorized amplifier 17 and a tachometer generator 18, the loop positions intermediate the roll pairs are detected by conventional measuring devices 28 - 31 whose outputs respectively control summation devices 36,37, &c. the output of each of the latter devices being connectible to control the speed of a subsequent or preceding roll pair and being connectible to the input of the subsequent or preceding summation device. Change-over switches 40 - 47 are set according to the direction of control required and, when in the positions shown, cause the speeds of roll pairs 2 - 5 to be altered by a variation in the measuring device 28, each summation device following the device 36 responding to the output signal of the preceding device and to the signal from its associated measuring device. The reference signals to the amplifiers 17 are obtained from a common source 19, 20 and are adjusted by potentiometers 21 to cause the speed of each roll pair to be progessively greater in the direction of roll. Potentiometers 23 - 27 provide a temporary increase in speed when the material being rolled is first fed into the mill and are subsequently disconnected. The reference signal from members 19,20 may have an initial ramp portion to accelerate the mill up to its operating speed by the time the leading end of the material reaches the coiler. Each summation device may comprise a non-sign-reversing proportional amplifier and may have an additional input signal from potentiometers 32 - 35 manually adjustable to alter the lengths of the loops in a manner similar to variation in the output of the measuring devices 28 - 31. The latter may be photo-electric pulse-generating arrangements or may be an arm having a roller engaging the loop and controlling a potentiometer or inductive transducer. The potentiometers 38,39 &c. through which the outputs of the summation devices are applied to the amplifers 17, are ganged to the potentiometers 21. The invention may be applied to a tape rolling mill maintaining a constant material temperature by zoom-rolling, Fig. 2 (not shown). In another application to rolling a web of plastics, paper or metal, Fig. 3 (not shown) the summation devices are cascade-connected in a forward and backward direction from a central controlling roll pair, the arrangement being such that the loop tension or speed difference between adjacent roll pairs may be controlled by adjustment of a potentiometer controlling the input from a ramp reference source to the summation device associated with the particular roll pairs.
Patent GB-1418125-A (GB)
Title: Film strip cartridge
IPC: G03B19/18
Filed: 1973-05-24
Abstract: 1418125 Film strip cartridge EASTMAN KODAK CO 24 May 1973 [24 May 1972 (2)] 24840/73 Heading B8M part B In a film strip cartidge the film strip path lies across an aperture 24 for receiving sound apparatus engageable with the strip, the cartridge having a finger 46 which projects from a wall 28 across a portion of the aperture to prevent the film F from bowing out of the aperture. The finger preferably underlies at least half the width of the film, Fig. 3, or it may have a narrow prong portion 46b, Fig. 6, so that it underlies the whole width of the film.
Patent GB-703116-A (GB)
Title: Improvements in and relating to combustion chambers
IPC: F23R3/00
Filed: 1951-10-24
Abstract: 703,116. Generating combustion products under pressure. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 24, 1951 [Oct. 31, 1950], No. 24866/51. Class 51 (1) In a combustion chamber having a flame tube 2 with openings 8 therein for the admission of cooling air, means for directing the air circumferentially over the inner surface of the flame tube comprises a deflecting member 9 having a portion 10 inside the flame tube close to the inner surface and parallel thereto and a second portion 12 at right angles to the first portion and projecting through an opening to outside the flame tube. The deflecting member is attached to the outer surface of the flame tube by means of bridge pieces 14 engaging slots 13 in the webs 12 and welded thereto and also welded to the outer surface of the flame tube. The openings 8 comprise five, six or seven equidistantly-spaced slots of considerable axial length and the deflector members comprise a number of sections separately attached to the flame tube and longitudinally spaced from each other, each section being attached to the flame tube near one end only, the sections being kept in alignment by pins 16 projecting into the ends. Rows' of additional combustion and dilution air inlet holes 17 are provided in the flame tube between the openings 8. Dimensions and proportions of the air inlet openings are given.
Patent GB-1074643-A (GB)
Title: Improvements in and relating to filter presses
Inventor: JOHNSON JOHN ARTHUR
IPC: B01D25/19
Filed: 1965-06-12
Abstract: 1,074,643. Filter presses. PROGRESS ENGINEERS Ltd. June 13, 1966 [June 12, 1965], No. 24904/65. Heading B1D. A filter press having slidable, suspended press plates 1 and end plates 3, 4, of which one or both are movable by hydraulic jacks 5, 6 (7), has means to maintain end plates 3, 4 parallel during press closure. In Fig. 1 jacks 5, 6 (7) are supplied by separate pumps 11, 12, 13 driven by a common electric motor 14 and each supply line has a pressure relief valve 15, 16, 17. In Figs. 3, 4 (not shown) the jacks are supplied by one pump, and a movable end plate carries three rubber blocks (32 . . 34) which engage the adjacent press plate and cause slight pivoting of the end plate (23) to maintain alignment. In the figures, end plates 3, 4 are both movable, tie rods 8, 9, (10) connecting with the piston rods of jacks 5, 6, (7), and each end plate in turn is moved insuccessive press closures. In a press with one fixed end plate, the jacks are mounted on the fixed plate and the rubber blocks on the movable plate only or on both end plates.
Patent GB-752085-A (GB)
Title: Improvements in or relating to electric devices arranged to produce a smoothed voltage, the amplitude of which varies in dependence upon the voltage amplitude of signals applied thereto during spaced periods in time
IPC: H03D3/10
Filed: 1953-09-09
Abstract: 752,085. Automatic frequency control. GENERAL ELECTRIC CO., Ltd., and SALTER, M. Sept. 3, 1954 [Sept. 9, 1953], No. 25018/53. Class 38 (4). [Also in Group XL (c)] A smooth voltage dependent upon the amplitude of a pulse train is produced by applying the pulses to a clamping circuit which is operated at times when the pulses normally occur, and which feeds a storage device to produce the smoothed voltage, part of which is fed back to the input of the clamping circuit in a sense to add to the input voltage. The invention is shown as applied to tuning the oscillator of a frequency changer to obtain constant intermediate frequency. Error pulses dependent in amplitude on the frequency error of the oscillator are applied to a valve 8 whose output feeds the clamping circuit 9. Gating pulses, coincident in time with the error pulses, are applied by transformer 14 to the circuit 9 which conducts to apply the error pulses to a capacitor 18 and an output cathode-follower valve 11. The output of the latter controls the oscillator frequency and is fed back to the input of the gating circuit 9, over resistor 27, to increase the overall gain.
Patent GB-151486-A (GB)
Title: Improvements in and relating to machines for assorting articles by weighing
IPC: B07C5/00
Filed: 1919-04-22
Abstract: 151,486. Marks, E. C. R., (Libbey Glass Co.). April 22, 1919. Sorting by weighing. - Glass rods, tubes, &c., which have been delivered from a drawing machine and have been automatically conveyed by carriers to diameter-gauging positions are then conveyed by the carriers to weighing positions, where the carriers coact with weighing mechanisms, so that the rods, if of sufficient weight to tilt the weighing-mechanisms, are discharged by the consequent tipping movements of the carriers. The carriers 19, Figs. 1 and 24, are mounted on parallel conveyer chains 13, and each rod a, delivered from the drawing-machine by a wheel 2, is picked up at the ends by a pair of carriers and delivered according to " over " and " under " diameter to positions b, c, and according to weight at the positions d, e. Each carrier has a pin 22 moving in an endless groove in the casing, which is cut away at d, e to allow the carriers to swing and deliver the rods in these positions. Two shafts 80, 81, Figs. 21 and 22, are supported at their ends upon knifeedges and carry pivoted levers 82, which swing horizontally. Pins 83 on the levers 82 normally lie in the path of the backs 84 of the carriers 19. The resistance to tilting of the levers 82 is adjusted by placing weights on pins 94 and screwing weights 96 on to levers carried by the shafts 80, 81. A heavy rod tilts the lever 82 at the position d and is discharged. Rods of correct weight are discharged at e and light rods are carried over the top and collected at 109. After tilting of the carriers 19, shown by dotted lines in Fig. 1, the carriers are positively and automatically returned to horizontal position by means of slides which push the pins 22, Fig. 24, into their endless grooves and at the same time close the gaps in readiness for another movement of the conveyer chains. Prior to this movement the levers 82, Fig. 21, are rocked clear of the carriers 19 and are restored after the carriers have passed.
Patent GB-685961-A (GB)
Title: Caramel colour separation
Inventor: CLELAND JAMES EDWIN
IPC: A23G3/32
Filed: 1950-10-13
Abstract: The colouring compounds of a caramelized water-soluble carbohydrate material, e.g. sucrose, glucose, or maltose, are separated by dispersing the caramelized material in a solution consisting essentially of a major amount of a water-soluble alcohol and an ether or a ketone of boiling point 30-80 DEG  C., and thus causing the colouring compounds to precipitate.  The alcohol is exemplified by methyl, ethyl, propyl, isopropyl ether, or dioxane.  According to an example, a caramelized corn sugar syrup of 30 per cent water content is sprayed into a mixture of 4 parts by volume of an ethyl alcohol of 15 per cent water content and 1 part by volume of ethyl ether; the precipitate is allowed to settle; the mother liquor is decanted, and may be caramelized again.
Patent GB-967763-A (GB)
Title: Method of joining electrically conductive metal to refractory hard metal bodies
Inventor: TITUS LESLIE
IPC: C04B37/02
Filed: 1962-06-29
Abstract: 967,763. Casting composite articles. BRITISH ALUMINIUM CO. Ltd. June 29, 1962, No. 25154/62. Heading B3F. An electrically conductive metal such as aluminium, copper and iron is joined to a refractory hard metal member 11 by contacting in the absence of a flux said member by said metal in a molten form at a temperature sufficient to ensure substantially complete wetting. The refractory metal, e.g. titanium, tantalum, niobium, and zirconium borides and carbides, element 11 for use in an aluminium reduction cell, is supported in a graphite heater tube 1 in a furnace, and a top cap cast-on within a graphite mould 9. The melt may be placed in the mould 9 and melted in situ or poured from a ladle &c. The furnace is flushed with argon gas through pipe 10 during heating. After cooling to, say, 800‹ C., the assembly is removed from the furnace and placed in a cooling furnace giving a directional cooling to eliminate piping. A flexible connector 17 may be inserted in the cap before it solidifies. Aluminium is cast-on at temperatures in the range 125-1500‹ C., copper in the range 1800-1900‹ C. and iron in the range 1535- 1600‹ C. When copper is being cast-on hydrogen may be bubbled through it while it is in contact with the hard metal member.
Patent GB-1339769-A (GB)
Title: Processes for preparing mannose from mannose derivatives
IPC: C07H3/02
Filed: 1971-04-19
Abstract: 1339769 Mannose from its bisulphite adducts ITT INDUSTRIES Inc 19 April 1971 [2 April 1970] 25226/71 Heading C2C [Also in Division C7]  Mannose is made by (a) dissolving equimolar amounts of a mannose bisulphite adduct and an alkali or alkaline earth metal carbonate, bicarbonate or hydroxide in hot water, maintaining the resulting syrup at 70-100‹ C. until evolution of SO 2  gas ceases, mixing the product with 6-10 vols. hot aliphatic alcohol, filtering, immediately neutralizing the filtrate with alcoholic CaCl 2 , filtering and removing the alcohol to give an aqueous mannose solution; (b) heating a solution of a mannose bisulphite adduct with CaCl 2  to remove sulphur from the bisulphite adduct, (c) subjecting a mannose bisulphite adduct solution to electrodialysis or (d) subjecting a mannose bisulphite adduct solution to a cationic and then an anionic exchange resin.
Patent GB-642091-A (GB)
Title: Process for the production of substituted diphenylamine 2-monocarboxylic acids
Filed: 1946-08-23
Abstract: Substituted diphenylamine - 2 - carboxylic acids, useful for pharmaceutical purposes and of the general formula <FORM:0642091/IV (b)/1> wherein the phenyl nucleus II is free from additional substituents, are manufactured by condensing an o-halogenobenzoic acid (which may contain one or more further substituents, e.g. an additional halogen atom, in the benzene ring) with a p-aminodiphenyl sulphide in which the phenyl nucleus carrying the amino group is free from additional substituents but the other may be further substituted (e.g. by a protected amino group, such as an acylamino group, a nitro group or a halogen atom).  The reaction is preferably carried out by heating in a suitable solvent (i.e. one which dissolves or partially dissolves one or both of the reactants, e.g. butyl or amyl alcohols) in the presence of an acid acceptor (e.g. an alkali metal carbonate) and of a source of copper (e.g. copper powder or a copper salt) as catalyst, and preferably in an inert atmosphere.  When the phenyl nucleus I contains a group convertible to an amino group, this group may subsequently be so converted (e.g. an acylamino group hydrolysed or a nitro group reduced) and the product may be further reacted with an o-halogenobenzoic acid which may be the same as or different from that first employed.  In an example, 4-amino-41-acetylaminodiphenyl sulphide, o-chlorobenzoic acid, potassium carbonate and copper powder are heated in amyl alcohol under reflux in an atmosphere of nitrogen to produce 4-(o-carboxyphenylamino)-41-acetamidodiphenyl sulphide, which may be hydrolysed with dilute alkali or acid to 4-(o-carboxyphenylamino)-41-aminodiphenyl sulphide Other o-halogenobenzoic acids specified are 2 : 3-, 2 : 4-, 2 : 5- and 2 : 6-dichloro- and 2-chloro-6-methoxy-benzoic acids.  Specification 608,492 is referred to.
Patent GB-1188475-A (GB)
Title: Arrangement for Applying Pressure to a Row of Members
IPC: G06K7/04
Filed: 1968-05-27
Abstract: 1,188,475. Sensing records. HUGIN KASSAREGISTER A.B. 27 May, 1968 [26 May, 1967], No. 25291/68. Heading G4M. Sensing pins 3 are urged towards a punched card or tape 8 by lowering sets of members 18 on to a flexible strip 21 whereby the strip 21 is tensioned and applies pressure to the tops of elements 13 or directly to the pins 3. A pin 3 which passes through a card hole allows the strip 21 to slacken so that the force required to operate the mechanism is much smaller than that which would be necessary to overcome normal pin-biasing springs. The pins 3 are returned by a lift bar 9.
Patent GB-1104762-A (GB)
Title: Improvements relating to the mounting of conveyor belts for use in cleaning a battery cage system
IPC: A01K31/04
Filed: 1964-04-16
Abstract: The subject matter of this Specification is contained in Specification 1,104,761 but the claims differ.
Patent GB-648565-A (GB)
Title: Improvements in or relating to apparatus for testing and indicating wear in ball androller bearings
IPC: G01N3/56
Filed: 1948-09-30
Abstract: 648,565. Bearings. SYKES & ROBINSON Ltd., and SYKES, C. L. Sept. 30, 1948, No 25446. [Class 12 (i)] [Also in Group XIX] Apparatus for testing and indicating wea in ball and roller bearings comprises a clamp for holding the inner race 5 and a pair of roller 9 for applying a load to the outer race 10 which co-acts with a dial indicator 17 showing irregu larities in rotation and eccentricity due to wear. A base 1 has a vertical web 2 to which the inner race 5 is clamped by an adaptor 4 A pair. of arms 7 are pivoted to the web at and carry rollers 9 pressed against the outer race by a coil spring 11, one of the roller having a handle 28 by which the outer rac, may be turned. The dial indicator 17 i carried by a bracket 16 adjustably clamped in a vertical slot 15 in the upper end of the web 2 and its plunger 23 passes through a hole in a  lever 20 pivoted to the bracket 16 at 19 and pressed on to the outer race by a spring 21 to apply a test load around the point of contac of the plunger. The position of the lever 20 is controlled by a shaft 24 with two flats so that the lever can be placed in "load off' position for testing for irregularities, hori zontal position for adjustment of the bracke 16, and "load on" position for testing fo play.
Patent GB-227203-A (GB)
Title: Improvements in or relating to electrolytic rectifiers
IPC: H01G9/14
Filed: 1923-10-12
Abstract: 227,203. Codd, M. A. Oct. 12, 1923. Electrolytic rectifiers; resistance materials.-In an electrolytic rectifier, a leakage circuit of high resistance is formed between the electrodes 13, 14. The leakage circuit may comprise an external resistance of about 500 ohms, or the distancepieces 16 within the electrolyte may be constructed of untreated wood, no external leakage path then being necessary. The electrodes 13 may be of aluminium or tantalum, and the electrodes 14 of carbon. The electrolyte may be of the composition specified in Specification 207,987.
Patent GB-299967-A (GB)
Title: Improvement in electric lifts
IPC: B66B1/42
Filed: 1927-09-28
Abstract: 299,967. Jensen, A. A. G., and Wadsworth & Sons, Ltd., W. Sept. 28, 1927. Electric plant.-An electric lift is operated by two motors of which one is used only for starting and sloping down the other. The main motor a forms a unit with the driving mechanism, and a pulley h on its armature shaft is connected by a belt g to a pulley f on the armature shaft of an auxiliary motor e. The bracket d for the motor e is pivoted in a standard c, and an arm i fixed to the pivot pin bears against a weighted lever j. The core of an electromagnet l is connected by a toggle linkage k to the lever j. The current is first switched on to the motor e and the winding mechanism together with the armature of the motor a is driven through the belt g. The current is then switched on to the motor a and to the electromagnet l thereby raising the lever j and slackening the belt g. When the current is switched off from the motor a and electromagnet l, the belt g is tightened and the winding mechanism is subjected to a braking action until the motor a has slowed down to a speed which enables the motor e to take up the drive. In a modification, the pulley h, Fig. 2, is connected to the armature shaft by a clutch which is actuated through a bell-crank lever &c. o, p by an electromagnet energized similarly to the magnet l.
Patent GB-1046689-A (GB)
Title: Servo controlled manipulator
Inventor: JONES LEON
IPC: G06F3/00
Filed: 1965-06-16
Abstract: 1,046,689. F. P. servomotor systems. NORTHROP CORPORATION. June 16, 1965. No. 25577/65. Heading G3P. [Also in Divisions B4 and G1] A mechanical finger of a robot arm is automatically made to follow the movement of an operator's finger by means of angular displacement transducers located at the respective joints, any difference in displacement producing an error signal which adjusts the position of the mechanical finger and also energizes pressure means applied to the operator's finger to show the lack of correspondence. As shown (Fig. 1), movement by an operator of his forefinger about the knuckle operates position pick-offs 12, 30, e.g. rotary potentiometers. The corresponding joint 17 in a mechanical finger 16 is sensed by pick offs 14, 31. The signals from 12 and 14 are compared at 19 and any difference is amplified to cause an actuator 24 to move finger 16 to follow the operator's movement. The signals from 30 and 31 are compared at 33 and any difference is amplified to blow up a balloon 47 in a glove 11 held by the operator, which tends to straighten the finger and thus gives a feeling of the force opposing the desired movement. The system may be repeated for other joints. A pneumatic actuator is shown (Fig.2). The amplified position difference signal is fed to a solenoid type torque motor 22, forcing a lever arm 57 downwards. Pressurized air from a source 65 is thus prevented from escaping via valve 63, and a diaphragm 72 is forced against a port 75, causing the air pressure to move a piston 80 driving a wheel 55 and finger 16. A similar torque motor constitutes drive means 37 for feeding the pressurized air into the balloon 47.
Patent GB-337866-A (GB)
Title: Improvements in or relating to aerial or/and earthing appliances for radio signalling installations
IPC: H01Q1/12
Filed: 1929-08-24
Abstract: 337,866. Hardman, K. T. Aug. 24, 1929. Aerials; directive signalling. -A radio aerial or earthing appliance comprises a plurality of wires arranged in the form of a brush fixed into a holder. Such a device, it is stated, may be used for directional propagation and reception in which case the brush a, Fig. 4, is set in a lead or solder holder b, inside a glass or porcelain cup d which is mounted in the hood g also of glass, porcelain &c. The whole assembly is mounted on a ball-and-socket joint. For use by submarines the aerial may be supported on a hollow metal float. When used as an earthing device the holder b, Fig. 7, is clamped at the bottom of a metal tube m having drainage perforations m<1> and an insulating plug n at the top through which passes a lead o. According to the Provisional Specification the earthing tube may have a flared upper end for the addition of water.
Patent GB-275048-A (GB)
Title: Improvements in or relating to tunnel ovens or tunnel kilns for use in the manufacture of tiles, pottery and other ware and for other purposes
IPC: F27B9/30
Filed: 1926-10-18
Abstract: 275,048. Marlow, J. Oct. 18, 1926. Tunnel kilns.-In a gas-fired tunnel kiln or oven for burning tiles, pottery ware &c. having combustion chambers b in the side walls, the air for combustion is heated in pipes c arranged in the outside of, and in close proximity to the crown of the kiln, and is passed to hot air chambers d adjacent the combustion chambers, and communicating therewith through openings f. Gas is supplied through flues a, and the heating- gases pass at the ends of the chambers b through openings g, g<2> to flues h, h<3>, h<2>, and thence through damper-controlled openings h' and h<5> to flues j at the sides of the crown. Air from the turned chamber may be passed to the hot air chambers d through pipes e. The combustion chambers may extend upwards as far only as the springers of the arch, or the two combustion chambers on opposite sides of the tunnel may be connected above the crown. Air circulating passages, open at both ends to the tunnel chamber, may extend beneath and at the back of the combustion chambers. The side walls of the tunnel may be built of tongued and grooved bricks W, Fig. 10, each having a corrugated panel w<4> set in a flat frame or surround w<6>. Reference has been directed by the Comptroller to Specification 232,480.