baber/WOPTO huggingface dataset:
Patent GB-983569-A (GB)
Title: An electrical control and/or signalling system
IPC: G04C13/02
Filed: 1961-04-05
Abstract: 983, 569. Clocks. E.O. SCHWEITZER. April 5, 1961, No. 12135/61. Heading G3T. [Also in Division H4] Two oscillations, one of frequency double the other, have their relative phase varied by a rotary member shifting the phase of one oscillation and at a receivier a D.C. signal is produced from the relative phases to reproduce the rotation. In Fig. 1 the frequency f of an oscillator 20 is applied through a 90 degrees phase splitting amplifier 33 to two pairs of input tappings arranged at 90 degrees on a continuous winding on a magnetic core, so that depending on the variable position of a rotor within the core a correspondingly phase shifted output is derived from a winding 42 and slip rings on the rotor, and applied to a transmitter modulator and P.A. stage together with a frequency doubled output of constant reference phase from the oscillator. The rotor position may be varied correspondingly with the hour hand of a 24-hour clock 50 operated by a synchronous motor 44 through reduction gearing 47. At a receiver the frequencies f, 2f are separated by filters and frequency 2f applied to a 90 degrees phase splitting network with two outputs, each of which produces coacting magnetic fields on opposite halves of a corresponding winding on a magnetic core, the parallel fields being at right angles. Also, frequency f, through a third winding produces a continuous one way magnetic field around the core so that as the phase of modulated frequency f varies through 180 degrees the resultant magnetic field direction due to f and 2f varies through 360 degrees and is followed by a magnetic rotor pperating the hour hand of a 12-hour clock. The "time" signal may be transmitted only intermittently, by short circuiting with a commutator 78 a grid leak resistor 77 normally self-biasing to cutoff the P.A. stage. The fundamental frequencies transmitted may be between 15 c/s and 10 kc/s and may instead by sent by cable, or the doubled frequency may be phase modulated. The receiver magnetic core may be internally notched so that the rotor and hour hand move in steps. Two or more pairs of control frequencies may be sent on one carrier.
Patent GB-1524154-A (GB)
Title: Fluidised bed combustion apparatus
IPC: F23C10/18
Filed: 1976-03-26
Abstract: 1524154 Fluidized bed combustion chambers ROLLS-ROYCE Ltd 23 March 1977 [26 March 1976] 12176/76 Heading F1L [Also in Divisions B1 and F4] A fluidized bed combustion apparatus 10 incorporates gas swirling means 22 located in a vessel 12 between the fluidized bed 20 and an outlet for the heated gas. The swirling means 22 serve to increase the residence time within the vessel of fuel particles entrained in the heated gas, thereby ensuring that they are completely burnt before entering downstream cyclone separators 17. The swirling means 22 comprises a plurality of angled vanes 28 extending between a central boss 28 and the wall of the vessel, the angle between the vanes and the vertical being less than 45 degrees. A restrictor plate 24 having a central vertical outlet (32) is located above and spaced from the means 22. The fuel burnt in bed 20 may be particulate coal.
Patent GB-116611-A (GB)
Title: Improvements in or relating to Table Cutlery.
Inventor: MARSHALL ARTHUR JOHN
IPC: A47G21/08
Filed: 1918-02-18
Abstract: 116,611. Marshall, A. J. Feb. 18, 1918. Table knives and forks. -A device for use by one hand comprises a knife.. blade D, fixed in a bracket C, and a fork F adapted to slide against the action of a spring G arranged in the handle B, The fork F is normally held in its extended position by a locking-plate J, which engages a slot in the shank of the fork. The locking-plate J is adapted to be pressed aside by one finger so as to throw it but of action.
Patent GB-1286608-A (GB)
Title: Linear positioning devices and the like
IPC: F16B37/00
Filed: 1971-04-29
Abstract: 1286608 Screw-and-nut mechanism; shaft couplings WARNER ELECTRIC BRAKE & CLUTCH CO 29 April 1971 [19 May 1970] 12239/71 Headings F2Q and F2U A nut 11 comprises a body portion 19 made of resiliently yieldable material, such as nylon, and formed with threads 21 engaging a screw 10, and a plurality of fingers 25 integral with and extending from one end of the body portion 19, the fingers having teeth which are urged resiliently into engagement with the threads of the screw 10 in order to take up back-lash. The fingers 25 may be spiralled at the helix angle of the screw-thread, or they may be axially directed, Fig. 9, and provided with teeth 66, Fig. 10. A garter spring urges the fingers 25 against the screw 10. In a modification, the screw-thread has zero helix angle, Fig. 8.
Patent GB-819834-A (GB)
Title: Reverberatory furnace
IPC: F27B3/22
Filed: 1957-04-15
Abstract: 819,834. Supplying oxygen. VEITSCHER MAGNESITWERK A.G. April 15, 1957 [April 16, 1956], No. 12301/57. Class 51 (1). In a reverberatory furnace heated by a fuel blast directed at a small angle on to the charge and supplied with preheated air from above additional oxygen is supplied under pressure to the lower side of the flame. Liquid fuel from twin jets 9 burns with preheated air supplied above the burners from a duct 4 to form a flame 8 directed on to the charge at a small angle. Oxygen from a jet 6 is supplied to the underside of the flame at a position determined .by the angle at which the jet 6 is set. The hot part of the flame produced by the oxygen is shielded from the roof of the furnace by the cooler flame above it. The oxygen jet 6 is between and below the plane of the oil jets 9, and the supply of oxygen may be controlled.
Patent GB-1522962-A (GB)
Title: Lubricating oil composition
IPC: C10M163/00
Filed: 1975-07-11
Abstract: 1522962 Lubricating oil compositions CHEVRON RESEARCH CO 11 July 1975 [11 July 1974] 12320/78 Divided out of 1522961 Heading C5F The disclosure is substantially as in Specification 1,522,961, but the claims are concerned with the lubricating oil compositions in which the friction modifier is a fatty acid amide of an amino acid of low molecular weight.
Patent GB-128449-A (GB)
Title: Improvements in or relating to Ladders.
Inventor: HUNT WILLIAM
IPC: E06C7/46
Filed: 1918-07-30
Abstract: 128,449. Hunt, W. July 30, 1918. Ladders.-To prevent the ladder from slipping at the foot, it is provided with a wedge-shaped block b, having plane faces, which is pivotally connected by links c to the sides a<1> of the ladder, so that it can be placed beneath the ends of the ladder as shown or turned upwards as shown in dotted lines when not required for use. If desired, the movement of the links c may be limited by staples driven into the sides of the ladder.
Patent GB-1029067-A (GB)
Title: Charged particle energy analyser
IPC: H01J49/46
Filed: 1963-03-28
Abstract: 1,029,067. Mass spectrometers. HITACHI SEISAKUSHO KABUSHIKI KAISHA, and HIKEGAMI. March 28, 1963 [April 16, 1962], No. 12386/63. Heading HID. A charged particle energy analyser comprises a sector-type electromagnet having two mutually confronting poles 1 with a charged particle path between them, an outer yoke 9 which bridges the outer peripheral end surfaces of the poles, and an energizing coil 7, constituted by small coils connected in series, wound at the inner surface of the outer yoke 9 within the space between the poles which are provided with divergently inclined inner surfaces extended up to the outer yoke. In a second embodiment (Fig. 4, not shown) an iron core wound with another energizing coil, bridges the poles in the inner side of the charged particle path, and each energizing coil is divided into a plurality of small coils connected in series and separated by shim plates. It is stated that the arrangement improved the magnetic field distribution in the pole gap.
Patent GB-711355-A (GB)
Title: Improvements in or relating to the polymerisation of vinyl and vinylidene chlorides
Inventor: DAGLISH ANTHONY FENWICK
IPC: C08F214/08
Filed: 1951-05-29
Abstract: The process of the parent Specification for the polymerization in aqueous dispersion of vinyl and vinylidene chlorides and mixtures with or without minor amounts of other monomers, is modified by employing as the dispersing agent a partial ester of a polyglycerol having a maximum of ten hydroxy groups in the molecule with a fatty acid having 10 to 20 carbon atoms in the molecule.  The fatty acid may be lauric, myristic, palmitic, or stearic acid or mixtures. Plasticizers, e.g. tri-xylenyl phosphate and tri-butyl citrate may be added to the polymerizable dispersion.ALSO:A partial ester of a polyglycerol having a maximum of 10 hydroxy groups in the molecule with a fatty acid having 10 to 20 carbon atoms in the molecule is made by heating glycerol at 230-300 DEG  C. in the presence of an alkaline or acidic catalyst and when the desired amount of water has been removed adding the chosen fatty acid and recovering the partial ester when esterification is complete.  The fatty acid may be lauric, myristic, palmitic, or stearic acid or mixtures.
Patent GB-543645-A (GB)
Title: Improvements in protective armouring
IPC: F41H5/04
Filed: 1940-08-07
Abstract: 543,645. Armour. HUNT & TURNER, Ltd., and JAMIE, R. C. S. Aug. 7, 1940, No. 12664. [Class 113 (ii)] Armouring is composed of metal laminae 11 spaced apart by a distance which is less than the diameter of the smallest projectile which the armour is likely to encounter, the edges of the laminae facing the on-coming projectiles. The spaces between the laminae may be filled with rubber cushions 10 or corrugated metal springs. The metal laminae may be corrugated or otherwise indented to vary the interposed rubber cushions. The armoured sections are enclosed in suitable casings provided with through bolts. The sections may be arranged in units with the laminations of one unit at right angles to those of adjacent sections. The armouring may be continued with the armouring devices described in Specifications 535,317 and 535,638.
Patent GB-330360-A (GB)
Title: Improvements relating to the production of decorative plaques or panels for various purposes
IPC: B44F1/14
Filed: 1929-04-24
Abstract: 330,360. Tiptaft, Ltd., and Morgan, E. M. April 24, 1929. Ornamenting.-A plaque or panel having the sheen and decorative appearance usually obtained by the use of butterf1y wings and adapted to be framed to form a picture or to be employed in the ornamentation of various articles, such as trinket boxes or cases, cigarette boxes, toilet brush and mirror backs, or the tops or stoppers of scent and pomade bottles, is made by employing, as a backing for a transparent sheet provided with a design, a sheet of metal foil having a highly ref1ective surface formed with scorings or indentations of varying degrees of fineness and depth in imitation of the veins on butterfly wings. As shown applied to the cap 7 of a powder bowl, a picture or design is painted on a disc 3 of non-inflammable celluloid, parts of the disc being left clear, the disc 3 is superimposed on a sheet 4 of tin foil fixed to a backing 5 of cardboard reinforced by a convex metal disc 6, the whole assemblage being p1aced on the upper portion of the cap and secured by spinning over the upper edge thereof. The impressions may be produced on the foil by applying it to a suitablyengraved die and passing a brush thereover or otherwise lightly pressing the foil against the die.
Patent GB-509178-A (GB)
Title: Improvements in or relating to gyroscopic compasses
IPC: G01C19/38
Filed: 1938-04-28
Abstract: 509,178. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. April 28, 1938, No. 12680. Convention date, May 1, 1937. [Class 97 (iii) ] The magnitude of the gravitational control factor is controlled by air pressure which may be varied to adjust the control in accordance with the latitude. Preferably the gravitational control comprises interconnected liquid containers having tapered interiors, means being provided for varying the mean level of the liquid in the containers. The damping factor provided by air jets controlled by a pendulum, may be adjusted simultaneously with the gravitational control factor. As shown the vertical ring 3, Fig. 1, is supported on air film bearings 4, 5 and 7, 8, 9, 10. The ball rotor spins on air film bearings 70 in the horizontal ring 72 and is additionally supported by a cup 76 on the ring 3. The ring 72 pivots on air film bearings 17, 18 in the ring 3. A single. supply of air pressure feeds the air film bearings for the rings 3, 72 and rotor, and also tangential driving jets 16 for the rotor. A second supply of air passes through the valve 30, adjusted by hand in accordance with the latitude, the upper bearing 6 of the ring 3, pipe 33 on the ring 3, and elongated receiving port 35 on the ring 72 to a pipe 80. The pipe 80 leads to the damping device 40 and also to a chamber 26 carried by the ring 72. A flexible container 23, Fig. 2, within the chamber 26 is filled with liquid and connected by pipes 25 having constrictions 25<1>, to two pairs of tapered liquid bottles 22 carried by ring 72. Alteration of the pressure in the chamber 26 is indicated by the gauge 81 and causes liquid, to flow from the container to the bottles or vice versa, thus altering the mean level, and therefore the area of the free surface of the liquid in the bottles. Damping is provided by oppositely directed nozzles 56 to which air is differentially supplied and the control of the pendulum 40 pivoted by air film bearings 41, 42 on a bracket 44 fixed to the ring 72. The air is supplied to the nozzles through a longitudinal passage in the pendulum. A shut-off valve 27 in the air supply to the valve 30 is closed during accelerations by a solenoid 28 operated in the manner described in Specification 275,182; [Class 97 (iii)]. Specification 290,670, [Class 97 (ii)], also is referred to.
Patent GB-314792-A (GB)
Title: Improvements in or relating to portable measuring sets for use on electric transmission lines or the like
IPC: G01R27/16
Filed: 1929-04-24
Abstract: 314,792. American Electric Co., Inc., (Assignees of Anderson, C. A.). July 2, 1928, [Convention date]. Resistances, inductances, and capacities, measuring. - Impedances are compared by means of an alternating - current detector adapted to be coupled to two circuits including the impedances to be compared and so coupled that when the alternating currents flowing therein bear a predetermined ratio, no alternating current will flow through the detector. A portable test set for locating faults, as described in Specification 293,378, may be employed in conjunction with an auxiliary portable set, the generator G, telephone receiver R and finder coil 20 of the test set being employed in conjunction with calibrated resistances 6, 7, 8, a potentiometer resistance 9, and insulated parallel wires 2, 3 enclosed in a tube 16, forming the auxiliary set. The auxiliary set is connected to the generator G of the test set by means of clips and flexible leads 12, 13, and to the resistances to be measured by means of flexible leads 10, 11 and clips 30, 31 The finder 20 of the test set is clamped around the tube 16 of the auxiliary set. A preliminary adjustment is made by connecting together the clips 30, 31, setting the resistances 6, 7, 8 to zero, and adjusting the potentiometer resistance 9 until no sound is heard in the receiver R on operating the generator G. Equal and opposite currents are then flowing in the wires 2, 3, which are in parallel circuits, one circuit including the resistances 6, 7, 8 and the other including the clips 30, 31. The resistance to be measured is then connected between the clips 30, 31 and the resistances 6, 7, 8 are adjusted until no sound is heard, the resistances 6, 7, 8 being then equal to the resistance under test. For testing rail bonds, copper wire brushes may be substituted for the clips 30, 31. The Specification as open to inspection under Sect. 91 (3) (a) states also that in the case where a complete set for measuring resistances, inductances, or capacities is required to be independent of the test set, the wires 2, 3 may be replaced by two primary windings of a transformer, the secondary winding of which replaces the finder coil 20. The primary windings may have equal numbers of turns, or a variable ratio of turns may be provided. The generator G may be replaced by other sources of alternating current, for example a thermionic valve oscillator. This subject-matter does not appear in the Specification as accepted.
Patent GB-515304-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N3/12
Filed: 1938-04-29
Abstract: 515,304. Television receivers. SCOPHONY, Ltd., and OKOLICSANYI, F. April 29, 1938, No. 12858. [Classes 39 (i) and 40 (iii)] A television receiver comprises a number of vertical tubes 21 close together in one plane, each tube having a source of electrons (which may be photo-electric), a control electrode 23, an anode 24, and a fluorescent layer 25, all of which run parallel to the axis of the tube along its whole length, the control electrodes being in operative connection with a line frequency commutator 30, which may be electronic ; the frame-frequency commutator may be electronic, as at 36, and connected to a series of horizontal wires 40 arranged outside the tubes and exerting a magnetic control on the electrons, or the frame-frequency component may be introduced photo-electrically. In the arrangement shown in Fig. 1; each tube 21 has one extension 26 containing an auxiliary cathode, grid and anode, the latter being connected to the long control electrode 23, and the grid 28 to the contacts of the electronic line-frequency commutator 30, through which the modulated vision signals are applied to the tubes in turn. The electrons are controlled magnetically to pass through the long controlling electrode to the fluorescent layer by horizontal wires, which are connected to the contacts of the framing commutator, or by windings on horizontal magnetic cores with pole pieces which extend horizontally over the picture area and are separated by the width of a picture line, Fig. 5 (not shown). In modifications, the evacuated extension 26 has a photoelectric cathode and the line-frequency commutator sweeps modulated light over the cathode, Fig. 3 (not shown) ; the light is unmodulated and the signals are fed to controlling grids between the photo-electric cathode and the anode of each extension ; the long cathode is photo-electric and the framing commutator sweeps a horizontal line of light vertically over the cathode, Figs. 6 and 7 (not shown). The Provisional Specification describes alternative arrangements in one of which two sets of control members are placed between the screen and source of electrons, an apertured shielding member being placed between the screen and the control members, each aperture being so arranged with respect to its associated beam that a diagonal deflection of the latter is necessary before it can pass through the aperture to the screen. The. diagonal movement of each beam is controlled in succession by the line and frame signals. The apertured member may be placed between the screen and the observer. In a further modification grid members in the form of horizontal and vertical parallel strips are arranged between the source of electrons and the screen.
Patent GB-1054755-A (GB)
Title: Polyelectrolyte builders and detergent compositions
Inventor: DIEHL FRANCIS LOUVAINE
IPC: C11D3/37
Filed: 1964-03-26
Abstract: 1,054,755. Detergent composition. PROCTER & GAMBLE CO. March 26, 1964 [April 1. 1963], No. 12858/64. Heading C5D. [Also in Division C3] A cleansing and laundering composition comprises an organic water-soluble anionic, non- ionic, zwitterionic or ampholytic detergent surfactant or a mixture thereof and a polyelectrolyte builder material comprising a watersoluble salt of a polymeric aliphatic polycarboxylic acid having the following properties: (a) a minimum molecular weight of 350 calculated as the acid form: (b) an equivalent weight of from 50 to 80 calculated as the acid form; and (c) at least 45 mole per cent of the monomeric species making up the polymer being aliphatic polycarboxylic species having at least two carboxyl radicals on the same carbon atom or on adjacent carbon atoms, not more than 27.5 mole per cent of the monomeric species making up the polymer having the form wherein one or more of the groups R is a non- carboxyl containing radical or molecular weight exceeding 16. Preferably, the polyelectrolyte builder material is a water-soluble salt of a homopolymer of an aliphatic polycarboxylic acid, the homopolymer having the following general formula wherein X, Y, and Z are each independently hydrogen, methyl, carboxyl or carboxymethyl; at least one of X. Y and Z being carboxyl or carboxymethyl and not more than one of X, Y and Z being methyl, provided that X and Y either individually or together, can be carboxymethyl only when Z is carboxyl or earboxymethyl; and wherein n is an integer of from three to an upper limiting value such that the polyelectrolyte builder has a solubility in water of at least 0.01% by weight. Suitable acids include maleic, itaconic, mesaconic, fumaric, aconitic, methylenemalonic and citraconic; these may be homo- or copolymerized with each other, or copolymerized with ethylene, propylene, acrylic acid, methacrylic acid, crotonic acid, 3-butenoic acid. 3-methyl-3- butenoic acid or 4-pentenoic acid.
Patent GB-1469482-A (GB)
Title: Aromatic imides and a method for making aromatic anhydrides
IPC: C07D307/89
Filed: 1974-03-22
Abstract: 1469482 Aromatic bis-(ether anhydrides) and aromatic bis-(etherphthalimides) GENERAL ELECTRIC CO 22 March 1974 [30 March 1973] 12867/74 Heading C2C  Aromatic bis-(ether anhydrides) of formula in which R is a divalent aromatic radical having from 6 to 30 carbon atoms, may be prepared by effecting nitro displacement of a nitrophthalimide of the formula in which R<SP>1</SP> is a C 6 -C 20  hydrocarbon radical or a halogenated derivative thereof, or a C 1 -C 8  alkyl radical, with an alkali metal diphenoxide of the formula in which M is an alkali metal atom, to produce an intermediate aromatic bis-(etherphthalimide) of formula  hydrolysing the above compound with base to produce a tetra-carboxylic acid salt, and acidifying the tetra-acid salt to produce an aromatic bis-(etherdicarboxylic acid) of formula and dehydrating the above dicarboxylic acid to give the aromatic bis-(etheranhydride). The aromatic bis-(etherphthalimides) of Formula VII in which R<SP>1</SP> is a C 6 -C 20  aromatic hydrocarbon radical are novel.