baber/WOPTO huggingface dataset:
Patent GB-742364-A (GB)
Title: Improved process for applying a corrosion resistant coating to steel vessels
IPC: C25D7/04
Filed: 1953-01-14
Abstract: 742,364. Electrodepositing tin-zinc alloys. MORRIS, C. Dec. 31, 1953 [Jan. 14, 1953], No. 1053/53. Class 41. A corrosion-resistant tin-zinc alloy coating is cathodically deposited on the inside surface of a steel vessel having a partially closed mouth, such as a fire extinguisher cylinder, at a cathode current density of 5-20 amps./sq. ft. employing an insoluble steel anode which is inserted through the mouth of the vessel which contains an aqueous solution of sodium stannate, zinc cyanide, sodium cyanide, and sodium hydroxide at 100-150‹ F. Typically the anode is of smaller area than the cathode surface of the vessel which may have an initial coating of lead, lead alloy, tin, or tin alloy. The tin-zinc alloy plating may be passivated by dipping the vessel in chromic acid.
Patent GB-689997-A (GB)
Title: Improvements in or relating to spectacles
IPC: G02C1/06
Filed: 1951-01-15
Abstract: 689,997. Spectacle frames. CHAPPELL, N. W. Jan. 15, 1952 [Jan. 15, 1951], No. 1068/51. Class 97 (i). In spectacles for reading &c. having lenses of a small depth in the vertical direction the lenses are held in the marginal rim members of a frame comforming to the outline of their lower edges, by bands which are thin relative to the marginal members and which accordingly do not obstruct forward vision appreciably. As shown in Fig. 3, the lenses 26 are held in the lower portions of rims 22 by cords 28 of nylon engaging grooves in the upper edges of the lenses and passing through holes in the frame to be secured by knotting. Alternatively, metal wires may.be used, their ends secured by wedges in holes in the frame, or metal bands grooved to fit over the bevelled upper edges of the lenses. Alternatively, bands may encircle the lenses, their ends being secured by set screws or the like which screw to hold the bands in the frame. The upper portions 25 of the lens rims may be omitted.
Patent GB-545477-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/38
Filed: 1941-01-27
Abstract: 545,477. Friction clutches. BORG & BECK CO., Ltd., and GODFREY, L. P. Jan. 27, 1941, No. 1078. [Class 80 (ii)] Relates to a friction clutch of the kind in which a pair of driven plates 24, 25 and an intermediate driving plate 26 are clamped between a flywheel 10 and a pressure plate 27, the parts being enclosed by a casing comprising a cylindrical wall 15 extending from the flywheel 10 to an annular closure disc 14. According to the invention the cylindrical wall 15 is divided by a circumferential series of openings 16 into a plurality of legs 17 the edge of the plate 26 being cut away at 37 to accommodate the legs 17. The screws 18 securing the cover 14 to the flywheel pass through the cylindrical wall 15. The clutching pressure is derived from springs 41, the clutch being released by levers 31 which are pivoted to the disc 14 and engage at 33 pads 34 fixed to the pressure plate. When the clutch is disengaged the intermediate plate 26 is separated from the flywheel by springs, Fig. 3 (not shown) mounted on studs fixed to the flywheel 10. The maximum separation of the parts 10, 26 is limited by a cross pin. Screws 47 fixed in the cover 14 form adjustable stops for the intermediate plate 26. U-shaped springs 48, 49 hold the release levers 31 in contact with the release bearing 36 and the pads 34.
Patent GB-138404-A (GB)
Title: Improvements in turbo-pumps, blowers, compressors, and other like rotary machines
IPC: F04D29/44
Filed: 1919-01-16
Abstract: 138,404. Bryant, F. E. Jan. 16, 1919. Blades.-Blades of rotors or stators of centrifugal pumps or fans or of turbines are held in position by means of a lip or flange at right-angles to the acting surface of the blade, which is engaged by a spacing block and held in position by clamping-plates bolted to the casing or the supporting-ring of the rotor. The clamping-plates may be integral with the placing-blocks, as in Fig. 1, which shows a centrifugal fan or pump in which the diffuser blades a with a. lip d are held by spacing-pieces c bolted by countersunk screws to the casing b. Blades g are held by bolts k which pass through extensions h of the blades. which lit groves in the casing. Distance-pieces fili the grooves between the extensions h of the blades g. These construction enable the interior of the casing to be machined to give a smooth interior surface, and also to provide for reguar spacing and easy removal of the blades. Fig. 15 shows a turbine section in which blades 3 with lips at right-angles are held by shaped distancepieces 5 and clamping-rings 12, 13 bolted to the rings 1, 17. The distanlle-pieces are formed to give the proper inclination to the blades.
Patent GB-1016248-A (GB)
Title: Process for the dyeing and printing of metal modified polypropylene fibres
IPC: D06P3/79
Filed: 1964-01-10
Abstract: The invention comprises a process in which metal modified polypropylene materials are dyed using dyes having the general formula R-N=N-R1-OH in which R is a hetrocyclic radical of the thiadiazole or triazole series, R1 denotes the radical of a phenolic or enolic coupling component in which the hydroxyl group is adjacent to the azo group.  The dyestuffs may contain further substituents but must not bear sulphoric acid groups. The dyes are applied generally at 50-130 DEG C. in acidic, neutral or alkaline aquerous solutions or pastes in the presence of conventional reagents e.g. e.g., thickeners carriers, dispersing or emulsifying agents.  After-treatments with detergents may be carried out.  Many examples of dyes which could be used are given. Steaming under pressure at temperatures up to 130 DEG C. may be used to fix the dyeing.  The polypropylene material used is pretreated with metal salts or is spun from polypropylene dopes containing the metal salts, especially salts of zinc and nickel, magnesium, copper or cobalt.
Patent GB-325352-A (GB)
Title: Swivel base for vice
IPC: B25B1/22
Filed: 1929-01-14
Abstract: 325,352. Fyfe-Lumsden, Ltd., Hutton, T. I., and Harison, A. H. Jan. 14, 1929. Vices.-A mounting for securing a vice rotatably to a bench comprises a fixed dome shaped base a secured to the bench by screws passing through holes in the flange a<1> and a cradle b swivelling on a stud c and having upstanding walls b<1>, b<2> between which the vice body is secured by a set screw b<4>. The screw stud c has a flat down one side and engages a corresponding hole in the base a to hold it against rotation. A nut c<3> on the stud c is adapted to be rotated to clamp or release the swivel cradle b by a spanner d having a bent stem protruding through a gap a<4> in the side of the base a.
Patent GB-620266-A (GB)
Title: Improvements in ball joints
Inventor: COMPANY LIMITED FORD MOTOR
IPC: F16C11/08
Filed: 1947-01-14
Abstract: 620,266. Ball joints. FORD MOTOR CO., Ltd. Jan. 14, 1947, No. 1223. Convention date, Feb. 1, 1946. [Class 65 (ii)] A. ball joint comprising a rod 11 with an integrally formed head 13, and a ball member 12 engaging a socket in the head is characterized in that the ball member is located in a transverse bore 14 in the head and is retained therein by a sleeve 15 adapted to slide on the rod. The sleeve, which has a reduced portion 16 to prevent its withdrawal from the rod, is formed with a keyhole slot 19 and is urged outwards of the rod by a spring 17 interposed between the end of the rod and the sleeve. The sleeve is packed with grease retained therein by a rubber sealing jacket 22. In a modification the ball is covered by a rubber member. It is stated that the spring may be placed about the rod between the head and the reduced portion of the sleeve.
Patent GB-137380-A (GB)
Title: Improvements in or relating to safety devices for articles of value
IPC: A45C13/18
Filed: 1919-01-17
Abstract: 137,380. Rosenson, G. Jan. 17, 1919. Pockets, retaining articles in.-A device for securing articles (such as wallets, cigarette cases, keys, papers, &c. in the pockets of wearing-apparel, ladies' bags, &c. comprises a clip A for gripping the article combined with a safety-pin B for attachment to the pocket. The clip comprises a frame a, Fig. 1, with an aperture b* to receive a ring or loop g on the safety-pin, the frame having side wings f in which is pivoted a lever c acting on a gripping spring claw d. The frame has an aperture b<1> to allow an excessively gathered portion of material to protrude. In the form shown in Fig. 2, the pin or a brooch is provided with a slotted portion b<2> for connexion with the clip, which is of U-form with a lever c<1> for pressing the ends d<1>, b together. Reference has been directed by the Comptroller to Specifications 9354/93, 19524/00, and 12285/06, [Class 44, Fastenings, Lock &c.].
Patent GB-1370942-A (GB)
Title: Control of electromagnetic contactors
IPC: H01H47/32
Filed: 1972-04-06
Abstract: 1370942 Protective arrangements BALDWIN & FRANCIS (HOLDINGS) Ltd 6 April 1972 [11 Jan 1971] 1246/71 Heading H2K The energization of a contactor coil C/C is controlled by a pulse generator C1, T1, TR1 which generates pulses at a higher frequency in a start condition in which the contactor is closing and at a lower frequency in a run condition when the contactor is closed, and a thyristor TH1 controlling the contactor coil current, the conduction angle of the thyristor depending on the frequency of the pulses so that the average current in the coil C/C in the run condition is less than that in the start condition. The closing of a local start switch or the contacts R1/1 of a relay energized by the closing of a remote start switch completes a circuit from a 240 v A.C. supply through the coil C/C, a capacitor C2, a resistor R3 and a capacitor Cl to rapidly charge the capacitor C1 until a unijunction transistor T1 conducts, the capacitor C1 then discharging through the transistor T1 and this cycle being repeated rapidly to provide the higher frequency pulses. The thyristor TH1 is triggered substantially at the beginning of each positive half cycle of the supply. When the contactor closes, it closes auxiliary contacts AUX1 so that when the start switch is released the pulse generator is supplied from the 60 v secondary winding of a transformer TR4 so that the pulse rate falls and the conduction angle is reduced. An undervoltage release circuit comprises a further pulse circuit C3, T2, TR2 which normally triggers a thyristor TH2 to maintain a relay R2/2 energized. Should the supply voltage fail or fall below a predetermined value, the relay R2/2 releases with a delay determined by a capacitor C4 to open contacts R2/1 to interrupt the discharge current from the coil C/C through a diode D3 which has been able to maintain the coil C/C energized. Automatic reclosing is provided by a circuit 4 which has a capacitor C5 which is charged by the closure of auxiliary contacts AUX2 when the contactor is closed and causes a pulse generator C6, T3, TR3 to produce higher frequency pulses. When the relay R2/2 releases, its contacts R2/2 close to connect this pulse generator to the thyristor TH1 and should the restoration of the supply occur within a time, e.g. three seconds, determined by the charge on the capacitor C5, the re-energization of the relay R2 causes the contacts R2/1 to close before the contacts R2/2 open so that the starting current can flow through the coil C/C.
Patent GB-1049931-A (GB)
Title: Improvements in or relating to alternating voltage controllers
Inventor: CALVERT RAYMOND
IPC: G01R17/00
Filed: 1964-01-13
Abstract: 1,049,931. Amplifying circuits. WAYNE KERR LABORATORIES Ltd. March 26, 1965 [Jan. 13, 1964], No. 1359/64. Heading H3W. [Also in Divisions G1 and G4] In an arrangement for controlling the output voltage of a high gain amplifier 10 so as to vary the ratio of the output to input voltage inversely with the setting of a linear potential divider 12, the amplifier output is applied to the potential divider and a feedback impedance 14 is connected between a tap on the divider and the input of the amplifier. The potential divider has an impedance which is small compared with the feedback impedance. It is shown in the Specification that the output voltage E 2  will be given by where E 1  is the input voltage, Z 1  and Z 2  are the input and feedback impedances respectively and K is the proportion of the voltage tapped off the potential divider. The arrangement is used in bridge networks for measuring complex impedance (see Division G1).
Patent GB-162040-A (GB)
Title: Improvements in windows
IPC: E06B3/46
Filed: 1920-01-16
Abstract: 162,040. Bastow, S. Jan. 16, 1920. Windows.-An horizontally sliding sash is carried on rollers 2 preferably of vitrified clay running in a groove 5 in the sill, a hardwood wedge 3A being interposed in an inclined groove in the sash. Screwed studs 4 keep the rollers in place, and the wedge is adjusted by a plate 6 and screw 1A. The meeting edges of a sliding sash and frame or fixed sash are weather-proofed by means of a half-round rod 8 on the fixed sash or frame which is given a quarter-turn to engage a semicircular recess in the sash. The sill has an integrally formed bead 7 and the sliding sash is rabetted for the top parting-bead 11.
Patent GB-522070-A (GB)
Title: Improvements in or relating to internal combustion engines using dust fuel
IPC: F02B45/02
Filed: 1939-01-16
Abstract: 522,070. Powdered-fuel engines. ROHRBACH, H. Jan. 16, 1939, No. 1414. Convention date, Feb. 11, 1938. Drawings to Specification. [Class 7 (ii)] In a powdered-fuel engine the air in the combustion chamber is brought by compression to a temperature at or above the ignition temperature of the powdered fuel and a cold mixture of air and powdered fuel of which the particles are of about 4-thousandths of a millimetre or less in diameter is injected, so that each particle by the sudden heating of the air and gas particles or gasifiable substances within it is exploded and split into particles of about 0.02 to 0.01 of a thousandth of a millimetre diameter and the whole fuel charge is burnt. Suitable proportions-by weightof the fuel and air in the mixture are stated to be between 6 and 8 parts fuel to 1 part air. It is stated 'that with the above method of operation complete combustion of the fuel can be obtained in a two-stroke-cycle engine having a speed of 750 revolutions per minute.
Patent GB-658972-A (GB)
Title: Improvements in and relating to secondary electron emission apparatus
IPC: G01S13/534
Filed: 1948-01-16
Abstract: 658,972. Radiolocation. PHILCO CORPORATION. Jan. 16, 1948, No. 1416. Convention date, Jan. 17, 1947. [Class 40 (vii)] [Also in Group XL (a)] A cathode-ray tube has a secondary-electron emitting target and an electrode disposed in deflection controlling relation to the cathoderay beam, a signal being applied to the electrode to shift the scanning trace on the target and means including the electrode deriving a signal which is a function of the secondary electron emission of the new trace. The electrode 7 is axially disposed in a tube having an electron gun 2, control grid 3, electrostatic deflection plates 4, 5 and emissive target 6 and frusto conical auxiliary electrode 7a. Target 6 may be a luminescent screen or a di-electric, e.g. glass, with the property that it emits secondary electrons at a decreased rate with successive bombardment until a stable emission rate is reached. The plates 9, 10 receive a deflecting signal causing a spiral scan which is radially displaced by signals applied between electrodes 7, 7a with consequent variations in the secondary emission, the electrons of which pass to electrode 7. In a radar target motion indicating system a video modulated 60 megacycle carrier signal which may be the intermediate frequency signal produced in the receiver circuits is applied from source 11 through a tuned condenser 12 and inductor 13 to the electrode 7, and any change due to target movement causes the beam of tube 1 to describe a different spiral trace. A greater number of secondary electrons is liberated from screen 6 and pass to electrode 7 under the influence of potential 14, the resultant signal in the video-frequency band passing a high impedance 16 and a low-pass filter 18, 19, 20, 21 to the video amplifier and output. The signal from source 11 does not pass this lowpass filter and neither signal modifies the potential of resistor 14. If the carrier frequency is sufficiently high, it is not necessary for it to be a multiple of the trace repetition frequency and the apparatus will detect successively recurring signals which are not periodic. In a modification, Fig. 2 (not shown), a 90 megacycle signal is applied to grid 3 to give a secondary electron output which varies at this rate and consequently the signal output is at a higher frequency than the videomodulated carrier and is separated therefrom by passing through a high-pass filter to the output. In this modification the signal imposed on electrode 7 might comprise the video signal itself. The scanning may be linear instead of spiral. U.S.A. Specification 2,491,684 is referred to. The Specification also refers to known method for detecting radar signals which comprise (1) delaying one signal by an amount equal to the interval between successive observations and subtracting to give a difference signal and (2) a cathode-ray tube with capacity plate co-extensive with the screen giving induced signals in the capacity plate when there is a charge in the scan.
Patent GB-537088-A (GB)
Title: Improvements in fluid medium suction intake devices
IPC: G01N1/26
Filed: 1940-01-24
Abstract: 537,088. Smoke detectors. KIDDE & CO.. Inc., W. Jan. 24, 1940, No. 1459. Convention date, Feb. 10, 1939. [Class 47 (i)] A smoke accumulator or intake for a smokepipe system comprises a body with a conduit coupling 1, a flat circular top member 3 adapted to be located close against the ceiling and a trough like bottom member 4 with rim 8 extending beyond  the member 3 so that air is drawn in from all directions and adjacent to the ceiling. Specifications 146,298, [Class 47 (i)], 399,449 and 406,648 are referred to.
Patent GB-1350041-A (GB)
Title: Glass furnace with triple batch charging
IPC: C03B3/00
Filed: 1972-01-12
Abstract: 1350041 Feeding glass batch EMHART CORP 12 Jan 1972 [15 Jan 1971] 1469/72 Heading C1M [Also in Division F4] A glass melting furnace having a doghouse on the upstream end wall of the furnace, through which batch material is introduced; the doghouse having three openings with batch feeding means 20a-20c being associated with each opening, the doghouse having three side walls which are so related angularly that two of the batch feeding means operate along angularly related lines of action which converge with one another at a point on the line of action of the third batch feeding means. A control system is described for sequentially operating the chargers in pairs in a cycle of four steps in which batch is fed in the first and third steps (B, D) along the longitudinal centre line of the furnace and in the second and fourth steps (A, C) in directions oppositely inclined to the said longitudinal direction.
Patent GB-107736-A (GB)
Title: Improvements in Pickaxes.
Inventor: THOMSON ALBERT REDDLE
IPC: B25D7/00
Filed: 1917-01-30
Abstract: 107,736. Thomson, A. R. Jan. 30, 1917. Pickaxes.-Pickaxes of the kind provided with removable points are provided with means for positively locking the points in their sockets. As shown, the points 13 have tapered parts 16 engaging tapered sockets 17 in branches 18 of the pick head 10. The branches 18 have cross slots 19 and are provided with ratchet teeth 20 surrounding each slot on one side. A bolt 24 is passed through the slot 19 and through a hole 26 in the pick points 13 and is provided with a toothed dog 21 which is forced into locking engagement with the teeth 20 by means of a wing nut 27 and spring washer 28. When the nut is slackened back, the pick point may be forced tightly into the socket 17, the locking dog 21 riding over the teeth 20. In a modification, the head of the bolt is shaped to form teeth to engage the teeth 20, the dog 21 being dispensed with. In both forms, when the bolt is removed, the pick points may be forced out of their sockets in the usual way by driving a wedge through the slots 19,
Patent GB-539267-A (GB)
Title: Apparatus for the continuous production of ply-wood
IPC: B27M3/00
Filed: 1940-01-26
Abstract: 539,267. Manufacture o f plywood. WATANABE, T. Jan. 26, 1940, No. 1612. [Class 145 (ii)] For the continuous production of plywood, a machine comprises a number of fixed plates 3 mounted radially on a drum intermittently or continuously driven through the gearing 15, 16, pressing plates 5 on each side of the fixed plates and wedges 6 pushed forward, in turn, by a pusher 9 attached to a ram 11 of a hydraulic press to force together the glued boards which are inserted by hand between the fixed plates and the presser plates and fall out as completed plywood when each wedge, in turn, is pulled out automatically by the pulling guide 12.
Patent GB-491363-A (GB)
Title: Method of manufacturing rubber-like materials
Filed: 1936-11-27
Abstract: Rubber-like materials are prepared by reacting a compound of the formula X.CnH2n Sz.Cn1H2n1X with a compound of the formula DO.CmH2m.Cm1H2m1OD in which z, n, n1, m, and m1 are integers greater than 1 but not greater than 5, X is a halogen, and D is sodium or potassium.  In an example, B-iodoethyl-g -iodopropyl trisulphide is reacted with potassium glycolate.  Halogenated sulphides of the above general formula are prepared by the reaction of the appropriate alkali polysulphide upon a chlorhydrin, and then treating the product with hydrochloric or hydrofluoric acid, if the compound containing chlorine or fluorine is desired; if the bromine or iodine compound is required, the chlorine compound is treated with the bromide or iodide of an alkali metal.  In an example, b -iodoethyl-g -iodopropyl trisulphide is prepared by treating a mixture of ethylene chlorhydrin and propylene chlorhydrin with Na2S3, passing gaseous hydrochloric acid into the resulting trisulphide, and stirring excess of potassium iodide into the product.
Patent GB-1093805-A (GB)
Title: Styrene polymers
IPC: C08F259/00
Filed: 1966-01-13
Abstract: A polymer of styrene containing at least 50% by weight of styrene units has associated therewith 0.5-6.0% of polyvinyl bromide as a flame-proofing agent.  The polymer may be foamed. The polymer may be produced by dispersing finely divided polyvinyl bromide in a mixture of polystyrene, styrene and petroleum ether (as expanding agent) and polymerizing in the presence of lauroyl peroxide to form polystyrene granulate which is then expanded by heating.  Alternately, the polymer may be produced by rolling polystyrene containing pentane (as expanding agent) around a suspension of polyvinyl bromide and polyisobutylene in pentane, evaporating the pentane to form polystyrene granulate coated with a film of polyisobutylene containing polyvinyl bromide and then expanding the polystyrene by heating.ALSO:Granules of a polymer of styrene containing at least 50% by weight of styrene units are coated with polyvinyl bromide to produce a flame-resistant polymer.  The styrene polymer may contain an expanding agent, e.g. pentane, and be coated with a suspension of polyvinyl bromide and polyisobutylene in pentane and the pentane evaporated off to leave a thin film of polyisobutylene in which the polyvinyl bromide is embedded.
Patent GB-1071145-A (GB)
Title: Improvements in methods of securing together a pair of concentric sleeves
Inventor: GODFREY WILLIAM THOMAS
IPC: B21D39/04
Filed: 1965-01-15
Abstract: 1,071,145. Jointing by stamping. BELLING & LEE Ltd. Jan. 15, 1965, No. 1828/65. Heading B3Q. A method of securing together a pair of concentric sleeves (1, 4, Fig. 2), comprises deforming a wall of one of the sleeves to form a protrusion (8) which projects into a preformed notch (5) in the end of the other sleeve. The ear (8) may be formed in the inner sleeve by pliers. Instead of an ear (8), flaps (13, 14, Fig. 4) or a nose (15, Fig. 6) may be formed, and the outer sleeve (1) may be formed integrally with the synthetic resin junction-box (9, Fig. 3) of a television aerial or aerial adaptor, the inner sleeve being a support tube (11).