baber/WOPTO huggingface dataset:
Patent GB-364131-A (GB)
Title: Improvements in and relating to dense refractories
IPC: C04B33/02
Filed: 1930-07-02
Abstract: Refractory bricks of high density are formed from non-plastic materials by utilizing 45 to 65 per cent of large particles between 3 and 30 mesh per inch, 55 to 35 per cent of small particles passing through a screen of 50 mesh per inch, and few or no particles of intermediate size.  Diagrams showing series of equal-density curves for varying proportions of particles of three different ranges of size are shown for magnesite, chrome, calcined kaolin, calcined fireclay, calcined cyanite (with different actual sizes of particles), calcined diaspore, and ganister.  The particles in the selected proportions are moistened before or after mixing, placed in moulds under a pressure of at least 1000 and preferably from 5000 to 15000 lbs. per square inch, and subjected to firing temperature.
Patent GB-481403-A (GB)
Title: Improved elastic coupling for shafts
IPC: F16D3/56
Filed: 1937-07-21
Abstract: 481,403. Damped resilient shaft couplings. ATELIERS - DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. July 21, 1937, No. 20209. Convention date, July 22, 1936. [Class 80 (ii)] Three or more radial laminated steel bladesprings 4 are bolted at their inner ends to one shaft 1, and bear freely at their outer ends in a circumferential groove in a flanged disc 3, secured to the other shaft 2, torque being yieldingly transmitted between the bladesprings 4 and flanged disc 3 by elastic abutments secured to the disc. The blade-springs 4 permit relative axial and angular movements between the shafts in addition to centring them. The elastic abutments comprise laminated blade-springs 6, secured at their inner ends to lugs 7, integral with the flanged disc 3, and at their outer ends to the blade-springs 4 by radially-movable yokes 10. Centrifugal force presses the yokes 10 into frictional engagement with the inner wall of the flanged disc 3, so as to provide variable friction damping of the torsional movement. Alternatively, independent shoes, pressed by centrifugal force, or radial or axial springs, may be provided for this purpose. The friction between the laminations of the springs 6 also assists in this damping, whilst that of the springs 4 damps axial oscillations. Although the outer ends of the springs 4 centre the shafts, additional means, comprising nitrided steel rings 8, 9, one of which is cylindrical, whilst the other is part-spherical, may be provided for this purpose. The Specification as open to inspection under Sect. 91 states also that the elastic abutments 6 may alternatively comprise helical springs, Belleville washers, -rubber discs or radial or transverse laminated blade-springs. This statement does not appear in the Specification as accepted.
Patent GB-1328001-A (GB)
Title: Frequency multiplex telecommunications systems
IPC: H04J1/04
Filed: 1971-04-19
Abstract: 1328001 Carrier multiplex systems SIEMENS AG 19 April 1971 [29 Jan 1970 (2)] 20282/71 Heading H4R In an arrangement for transmitting "video" signals over a carrier link the video signals are transmitted as a vestigial sideband signal in a band which would otherwise carry a tertiary group of 300 telephony channels. As described the original video band extending up to about 992 KHz is transposed, either in one Fig. 3 or 4 (not shown), or two, Fig. 2, modulation steps to the frequency band 812-2044, either erect (Fig. 3) or inverted (Fig. 4) with the vestigial sideband characteristic provided after the first modulation step. From this basic teritary group position the video signal can be transposed to occupy tertiary group positions in 4 MHz or 12 MHz systems in the same way as normal tertiary groups of 300 telephone channels. Alternatively, Fig. 1, the video signal can be modulated and filtered to provide an inverted vestigial sideband transmission ZF at 2916 to 4148 KHz which is used directly as the third tertiary group in a 4 MHz system with the first and second tertiary groups derived from similar intermediate signals ZF of video or telephony channels by a further modulation stage. Preferably the first transposition from video uses a carrier which is an odd number multiple of 4 KHz and derived independently from a crystal oscillator so as to have a stability of Œ 4 Hz while the remaining carriers are all whole number multiples of 8 KHz. The choice of carriers for the system is the subject of Specification 1,328,002.
Patent GB-459871-A (GB)
Title: Improvements relating to the lubrication of bearings
IPC: F16N7/18
Filed: 1935-07-16
Abstract: 459,871. Bearings ; lubricating. PEYINGHAUS, W., (trading as EISEN UND STAHLWERK W. PEYINGHAUS), Egge, near Volmarstein, Ruhr, Germany. July 16, 1935, No. 20291. Convention date, July 19, 1934. [Classes 12 (i) and 12 (iii)] In an oil-flooded bearing, lubricant films are formed between the shaft 4 and the bearing brasses 9, 10, and between the latter and the bearing casing 19 by introducing lubricant into wedge-shaped inflow chambers 91, 101, 20..24 formed between these parts. As shown for a vehicle-axle bearing the brasses 9, 10, are connected by bolts 5 carrying springs 6. Oil in the bearing casing 19 is raised by discs 12 and removed by scrapers 13 into grooves 15 in the upper brass 9. From thence some passes through ducts 26 to the wedge spaces 20, 23, and some flows over the surface 17 and drips into the wedge spaces 10<1>.
Patent GB-615936-A (GB)
Title: Improved method for lubrication
IPC: C10M105/24
Filed: 1946-07-08
Abstract: 615,936. Bearings. COMPAGNIE FRANCAISE DE RAFFINAGE. July 8, 1946, No. 20380. Convention date, Oct. 5, 1943. [Class 12 (i)] Metal surfaces to be lubricated are dryrubbed with a substance neutralizing the surface molecular forces such as a metallic salt of a fatty acid, e.g. a barium, lead or zinc stearate. French Specification 612,077 is referred to.
Patent GB-780331-A (GB)
Title: Improvements in mechanisms for the discharge of liquids under pressure from containers
Inventor: HENSHAW THOMAS ANTHONY
IPC: A62C13/00
Filed: 1954-07-13
Abstract: 780,331. Fire extinguishers. PYRENE CO., Ltd. July 13, 1955 [July 13, 1954], No. 20469/54. Class 47 [Also in Group XXVIII] A liquid projection apparatus, such as a fire extinguisher, which will operate in any position, comprises a container 1 from which liquid is forced by gas pressure to a discharge passage 4 connected to a dip tube 6 having a port or ports 26 at its upper end through which liquid will pass when the apparatus is inverted, the flow of liquid into the dip tube at the lower end being uncontrolled and at the upper end being controlled by a single gravity operated sleeve valve 27 which closes the port or ports 26 when the apparatus is upright and opens them on inversion, the bores of the passage for the flow of liquid upon inversion of the apparatus and the length of the dip tube below the ports 26 being so correlated as to maintain in the tube 6 a column of liquid preventing the flow of gas to the discharge passage 4. The dip tube comprises an upper part 7 on which the sleeve valve 27 is mounted, and a lower part 8 movably attached to the part 7 by a flexible bellows 9. A weight 29 ensures that the bottom of the part 8 bears against the side wall of the container when the apparatus is tilted.
Patent GB-1468606-A (GB)
Title: Light source lamp for atomic light absorption analysis
IPC: G01N21/01
Filed: 1974-05-09
Abstract: 1468606 Metal-vapour lamps HITACHI Ltd 9 May 1974 [11 May 1973] 20591/74 Heading H1D [Also in Division C7] In a lamp used as a light source for atomic light absorption analysis comprising a cathode 1 having a hollow 2, an anode 3 arranged in the vicinity of said cathode, a hermetical envelope 10 to enclose said cathode and anode, and a gaseous atmosphere contained in said envelope, said cathode 1 is formed of an alloy of silver and at least one metal which has a melting point lower than 500 C. and can emit the same resonance spectral line as the metal to be analysed. The said added metal may be Zn, Cd, In, Tl, Sn, Pb, Bi, Se or Te. The alloy is prepared by melting, and prepared metals and their proportions in atomic percentages for adding to the Ag are Zn 20-80%, Bi 40-80%, Cd 15-70%, Sn 30-70%, Pb 30-80%, Se 33-40%, Cd 15-30% and Pb 40-60%, Cd 5-30% and Zn 10-30%. The purity of the Ag and added metal should be equal to or higher than 99À9%. Curves are provided (Figs. 3 and 6 to 15, not shown), plotting the relative luminous intensity and stability time against content of added metal, and relative luminous intensity against discharge current. The lamp is otherwise as described in Specification 1,219,705. The gas filling may be argon, neon or helium, e.g. neon at a pressure of 5 to 9 mm. Hg.
Patent GB-1004141-A (GB)
Title: Improvements relating to frameworks for suspended ceilings
Inventor: MORRISON RONALD FRANK
IPC: E04B9/16
Filed: 1960-06-11
Abstract: 1,004,141. Suspended ceilings. R. F. MORRISON & CO. Ltd. Sept. 7, 1961 [June 11, 1960], No. 20627/60. Heading E1V. A framework for a suspended ceiling comprises a series of parallel main elongated members 1 to be suspended from a structural soffit by hangers 4, each main member adjustably carrying a series of pairs of plates 5, the two plates of each pair of which support between them one of a series of parallel crossmembers 2, which are adapted to support ceiling tiles, &c. 12. As shown, the plates 5 slide on in-turned flanges on each main member 1 and the cross-member 2 of wood is nailed to the plates. Alternatively, the members 1 have out-turned flanges or are of inverted T-section. The cross-members 2 may also be of T-section and may be of metal.
Patent GB-885100-A (GB)
Title: Flow sensing units, in particular flow meters
IPC: G01F1/075
Filed: 1959-06-16
Abstract: 885,100. Flowmeters. POHL, L. L. June 16, 1959 [June 26, 1958], No. 20640/59. Class 40 (1). [Also in Group XXIX] A flowmeter comprises a casing 17, Fig. 4, having one or more constrictions 6 with cavities 7 disposed in a region in which the cross-sectional area of the flow path increases in the direction of flow and containing a rotary vane 8 mounted on an axis transverse to the direction of flow for rotation by the fluid stream and associated with an electrical device producing a measurable output proportional to the speed of rotation. The vane 8 is mounted on needle bearings 21, Fig. 5, and is arranged so that its edges project by a small amount into the fluid stream over a part of the rotation only, the fluid driving the vane as a result of a pressure differential in the direction of flow and as a result of aerodynamic lifting forces during the remaining part of the rotation. In examples the means for measuring the velocity and mass flow comprises an electrical system in which the movement of the vane results in the modulation of a carrier wave, produced by mixing the frequencies of oscillators 110, 111, Fig. 8. After I.F. amplification at 112 and detection at 113 a pulse separator 114 selects peak D.C. voltages for smoothing and correction by a densitometer 116 to producing reading at a voltmeter 115 calibrated to indicate the rate of flow. The pulses are separately passed to a pulse counter or integrator 117 which produces a D.C. output according to the pulse frequency and is measured by a voltmeter 118 with a quantity calibration. The pulses may also be used to actuate a step solenoid for advancing a Veeder-Root type counter. The device for modulating the wave form may comprise an induction coil 10 with a tuning slug 11 which is mounted on non-magnetic material in the region of the rotating vane 8. In an alternative arrangement the signal is modulated by the variable reactive impedance of a combined capacitor plate 27, Fig. 11a, and a brush contact 28 arranged above a journal shaft 21 of the vane 8. An additional capacitor plate 30, Fig. 11c, may be attached to the end of the vane 8.
Patent GB-285733-A (GB)
Title: Improvements in head telephones
IPC: H04R1/10
Filed: 1927-08-05
Abstract: 285,733. Reimer (nÚe Korsinofski), A. Aug. 5, 1927. Head-sets. - A detachable cushion for the headband of head telephones comprises a plate c of metal, celluloid, &c. tc which the cushioning material d is attached, the plate having pressed out tongues e which are adapted either to clip on to or be folded over the band.
Patent GB-148832-A (GB)
Title: Rotary printing machine
IPC: B41F13/44
Filed: 1920-07-10
Abstract: 148,832. Pasquier, C. R. April 3, 1919, [Convention date]. Rotary machines; inking-apparatus; tripping - arrangements. - A rotary printing-machine which is capable of printing in one or more colours from cylinders of variable size comprises one or more printing cylinders 9 mounted in a frame formed of side members 1, 2, a connecting-member 3, and a side bracket 5 for supporting a transverse driving shaft 4 which can be geared to a. series of printing couples arranged side by side. Each printing roller is fitted with an inking-apparatus, which is driven from the shaft of the printing roller, and is capable of adjustment to suit rollers of different sizes. An impression roller 44 mounted in arms 45 controlled by a screw 46 coacts with the printing roller. As shown, the printing roller 9 is inked by a pair of rollers 29 which are mounted in adjustable bronze bearings 30 which are fitted in slots in the side frames 1, 2, and are secured in position by screws 32. The arrangement permits rollers of different sizes to be secured in position readily. The rollers 29 receive their ink from a roller 22 which is fitted with a longitudinally reciprocating distributing roller 37, and the roller 22 is supplied by an oscillating transfer or messenger roller 21 which is moved to and from this roller and a duct roller 13 driven bv an eccentric 10, and a connecting-rod 11 from the shaft 8 of the printing roller. The rod 11 is adjustably secured to a slotted crank 12 fitted with a pawl which actuates a ratchet to rotate the roller 13 intermittently. The roller 21 is carried by a fiexible frame 23 connected to an oscillating shaft 25 operated bv a cam 26 and lever 28 from the shaft 8, and the roller 37 is reciprocated longitudinally by means of a cam 38 and adjustable lever 39, 41, 42, connected to a fork 43 on the shaft of the roller 37. The roller 22 gears with the rollers 29 which are geared to a. wheel on the shaft 8, and the rollers 29 may be arranged below instead of above. the roller 9.
Patent GB-715719-A (GB)
Title: Improvements in prestressed concrete piles
Inventor: SYKES WALTER BURRANS
IPC: E02D5/52
Filed: 1952-08-18
Abstract: 715,719. Piles. STENT PRECAST CONCRETE, Ltd. Oct. 16, 1953 [Aug. 18, 1952], No. 20691/52. Class 68(2) In a sectional pre-stressed concrete pile built up from tubular units a provided with shallow spigot and socket connections, the alignment of ducts e for post-tensioned high tensile steel wires d is ensured by the inter-fitting of radially staggered portions g<SP>1</SP> of the circumference of the sockets and spigots g. Preferably the spigots are each formed on a closed end of units a and preferably the circumference is divided into four symmetrical portions. As the pile is assembled the wires d, anchored over bars m, are run through ducts e and the joints cemented. The assembling and pretensioning are carried out in a horizontal position after which grout is injected into ducts e to hold the wires d. Reinforcing rods of a structure built on the pile may be screwed into anchor blocks s or, alternatively, the head c may be removed and the lower ends of the rods embedded in concrete in the cavity of the uppermost unit a. Toe unit b has a cast steel tip i with straps embedded in concrete. Spacers q are provided in head unit c and wire grips bear on anchor blocks s on anchor plates t. Ducts e are flared at e<SP>1</SP> and the spigots and sockets may be of frusto-conical formation.
Patent GB-137499-A (GB)
Title: A non screw adjustable spanner
IPC: B25B13/22
Filed: 1919-08-23
Abstract: 137,499. Lazenby, T. Aug. 23, 1919. Sliding - jaw wrenches; wrench handles.-The sliding jaw D of a spanner is locked in adjusted position by a member C having teeth on its upper end engaging teeth on the shank of the jaw D. The member C is slidingly mounted between the handle members A, B which carry the fixed jaw and is guided by slots G in the member C engaging pins fixed to the members A, B. A spring H normally holds the teeth in engagement and a projection J on the member A engages a guidegroove K in the jaw D.
Patent GB-320651-A (GB)
Title: Improvements in apparatus for quenching coke
IPC: C10B39/04
Filed: 1928-07-18
Abstract: 320,651. South Metropolitan Gas Co., and Andrews, A. H. July 18, 1928. Discharging; cooling discharged materials.-Apparatus for quenching coke discharged from retorts e comprises a carnage a movable on rails v and fitted with a vertically sliding plate g which is lowered to detain the coke on the fixed ramp f during quenching and raised to allow the quenched coke to continue its passage down the ramp to the wagon or the like w. On the retort side of the carriage is mounted an open-fronted vertical chamber b which serves to carry off the steam generated during quenching and is fitted with cokeguiding plates c, d and a spraying device t. The latter comprises a tray s formed with holes or nozzles t and adapted to receive water through pipes r from a tank which is fed from one or other of the two compartments of a divided tank j. Each compartment of the tank has a valve l controlling the outlet to the tank q and a ball-valve n connected to an indicator o. The valves l are operated by rods m and the plate g by.an hydraulic cylinder i.
Patent GB-727498-A (GB)
Title: The manufacture of organic hydroperoxides
Inventor: WEBSTER WILLIAM
IPC: C07C409/12
Filed: 1952-08-23
Abstract: Diisopropylbenzene dihydroperoxides are made by reacting meta- or para-diisopropylbenzene at an elevated temperature, e.g. at 50-150 DEG  C., with molecular oxygen to produce a concentrate of monohydroperoxide of at least about 45 per cent by weight, extracting the dihydroperoxide from the oxidized solution by treating with a non-acidic aqueous solution such as dilute sodium hydroxide and subjecting the residual solution to further oxidation.  The oxidation may be carried out in the homogeneous phase or in the presence of sufficient water to form a heterogeneous system.  The aqueous extract of the dihydroperoxide may be worked up by extraction with benzene or diisopropylbenzene, p  by precipitation of the dihydroperoxide from the aqueous extract by adding acid or carbon dioxide, or by evaporating the aqueous extract whereby an alkali salt of the dihydroperoxide is obtained. The extraction may be carried out continuously in a countercurrent manner, or by a batch process.  An example is given in which para-diisopropylbenzene is continuously oxidized with an excess of oxygen in the presence of a small amount of a hydroperoxide as initiator.  After an initial induction period, the diisopropylbenzene was circulated through an extraction column, the reactor contents being kept slightly alkaline by adding sodium carbonate solution.  After about 50 hours the hydroperoxide concentration in the reactor remained steady at about 54 per cent mono- and 4.2 per cent di-hydroperoxide, while the amount of dihydroperoxide extracted per hour had increased to its maximum. Fresh diisopropylbenzene was added continuously to replace the dehydroperoxide removed by the extraction.  Using 4 per cent sodium hydroxide solution for the extraction, the extract contained 0.3 to 0.5 parts of monohydroperoxide and 8.5 to 10 parts of dihydroperoxide per 100 of solution.  Other examples are given using meta- and para-isomers.
Patent GB-501792-A (GB)
Title: A bearing for the rolls of rolling mills
IPC: B21B31/07
Filed: 1938-07-18
Abstract: 501,792. Stuffing - boxes. KRUPP GRUSONWERKE AKT.-GES., F. July 18, 1938, No. 21278. Convention date, Aug. 14, 1937. [Class 122 (v)] [Also in Group XXXIV] In a bearing for the rolls of rolling-mills wherein the bearing housing 1 forms a chamber 5 for a cooling medium, the cooling chamber is made oil-tight by packing rings 16, 17 under axial and radial pressure. The packing-rings 16, 17 are of angle shape and have split thrust rings 23, 36. - The ring 23 is expanded radially by a wedge 22, Fig. 5, and is pressed axially by a spring pressed plunger 25 having an adjusting nut and screw 28, 30. The ends of the ring 36 overlap and the ring is expanded radially by a right- and left-handed screw connection 45. Screws 37 press the ring 36 axially.
Patent GB-382323-A (GB)
Title: Improvements in and connected with automatic speed-sensitive alarms, or signal devices
IPC: G01P1/10
Filed: 1931-07-27
Abstract: 382,323. Speed alarms or signals. NORTH & SONS, Ltd., Whippendell Road, and ALLEN, A. MASSEY-, 142, Queen's Avenue, both in Watford, Hertfordshire. July 27, 1931, No. 21424. [Class 106 (iii).] A speed sensitive audible and/or visible alarm or signal apparatus has a switch operated by a speedresponsive device, such as a centrifugal device, through the medium of a member which has a lost-motion connection with the switch, the latter being adapted for having a sluggish opening movement. A revolving spindle s has pivoted on it a mutilated hollow spherical weight r having internal trunnions around which springs are coiled and having connected to it one end of a bent link t, the other end of which is connected through a stop v to a pin u axially movable within a bore in the spindle s. The pin u presses against a pivoted arm w which presses against a projection x depending from a spring blade k mounted on a baseplate a. The blade k has a pin l with a lynch pin m or other device passing freely through a hole in a pivoted switch blade d to provide a lost-motion connection and has a fibre block or rib n which engages with the end of the switch blade d to press a contact d<2> on the blade d into engagement with a contact c<2> on a flexible switch blade c when a certain speed limit is exceeded. The blade d is mounted on a hinge pin e extending laterally from the bracket b and has in its hub d<1> a fibre bush h against the end of which a washer f is pressed by a spring g and adjusting nut j. The flexible switch blade c has one end insulatedly fixed upon the top of the bracket b. The baseplate a is mounted as a top cover of a casing q enclosing the centrifugal device and the switch is enclosed by a casing part y slipped over the casing q and covered by a lid z screwed on to the part y. The point of engagement between the lynch pin m and the blade d is near the pivotal axis of the blade so that the break between the contacts c<2>, d<2>, which make rubbing contact, is quick and definite. More than two superposed flexible switch blades may be provided so that the bringing on of alarms or signals in sequence can be effected.