baber/WOPTO huggingface dataset:
Patent GB-566602-A (GB)
Title: Improvements in telephone or like systems
IPC: H04Q1/446
Filed: 1943-07-01
Abstract: 566,602. Exchange systems; two-way transmission. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., GILLINGS, C., and BEALE, C. E. July 1, 1943, No. 10679. [Class 40 (iv)] In a system employing voice-frequency signalling over repeatered junctions, a circuit associated with the voice-frequency receiver at each end of the junction prevents the transmission of outgoing signals as long as voice-frequency currents are arriving over the junction and for a period thereafter at least equal to the hang-over time of the echo-suppressors. The arrangement obviates the need for the use of signals that are repeated until acknowledged from the receiving end. As applied to a system of the kind described in Specification 559,016, the outgoing relay set ORS and v.f. receiver OVR, including the detecting circuit ODE, are connected by way of a hybrid transformer ORH to a link leading to the hybrid transformer OLH of a 4-wire junction 10, 11, the arrangement at the distant end of the junction being similar. Instead of using the hybrid transformer ORH, it may be arranged that the receiver OVR is disconnected while signals are being transmitted. The detecting circuit comprises a pair of high-speed relays OSA, OSB controlled from the receiver OVR through a thermionic valve OVI, and a slow-release relay OSHT dependent thereon. These relays when energized disconnect the signal source from the line transformer T1 and open lead 12 to restrain the operation of the signal timing switch, this condition being maintained after the junction becomes clear during the release period of relay OSHT. In order to deal with simultaneous signals from both ends of the junction, relay OSHT and the corresponding relay at the distant end are given different release periods. Specification 559,016 is referred to.
Patent GB-706748-A (GB)
Title: Improvements relating to the production of ferro-manganese in blast furnaces
IPC: C21B5/02
Filed: 1952-04-28
Abstract: In the production of ferro-manganese in a blast furnace in which a charge containing iron and manganese is reduced under a slag which contains Ca O, Mg O and Si O2, the ratio of Ca O+Mg O : Si O2 being 1.7 to 2.8 and the Mg O content of the slag being at least 3 per cent. as described in the parent Specification the contents of Mg O and Si O2 are reduced and the slag contains 18 to 30 per cent. Al2 O3.  The Mg O content of the slag may be 5 to 8 per cent.
Patent GB-753756-A (GB)
Title: Prism system for beam splitting
IPC: G02B27/14
Filed: 1954-04-12
Abstract: 753,756. Optical systems. ZEISS-STIFTUNG, C., [trading as ZEISS, C. [Firm of]]. April 12, 1954 [April 25, 1953], No. 10706/54. Class 97 (1). A beam-splitting prism system has an internal semi-permeable reflecting surface giving rise to two beams which are directed by reflecting outer surfaces of the prism on to opposite sides of a double-sided wholly-reflecting surface and are reflected thereby to leave the prism system in opposite directions. The two emergent beams may be directed to separate oculers for binocular observations, the oculers being rotatable for adjustment about the common axis of the two oppositely-directed beams. As shown, incident beams 9 and 10 are each divided by a semi-permeable reflecting surface 3, the respective halves of each beam being superposed to give beams 9<SP>1</SP>, 10<SP>1</SP>. The beam 9<SP>1</SP> is reflected by a prism surface 7 to fall at 45 degrees upon the wholly reflecting surface 6 by which it is reflected as a beam 9<SP>11</SP>. The beam 10<SP>1</SP> is reflected by the end surface 8, formed as a roof, as reflected by the other side of the surface 6 to form a beam 10" in the opposite direction to that of the beam 9<SP>11</SP>.
Patent GB-219101-A (GB)
Title: Improvements relating to expelling water from the ballast tanks of submarine or other submersible vessels
IPC: B63G8/22
Filed: 1923-04-20
Abstract: 219,101. Lee, A. J. F. April 20, 1923. Submarine vessels.-Means for expelling water from the ballast tanks of submarine vessels comprises a chamber, closed at the top and open at the bottom to the sea, is provided at the base of or connected to the ballast tank and a pipe leads from the bottom of the tank into the air space at the top of the chamber. The ballast tank B contains the air chamber C open at F to the sea. A pipe E connects the chamber and tank. To discharge the tank, air is pumped through a pipe D into the chamber C until the level of water therein falls below the level of the open end of the pipe E, and then air is forced into the tank at G whereupon water flows from the tank through the pipe E to the sea. More than 'one pipe E may be provided, and the chamber may be formed integral with and as a recess in the tank.
Patent GB-558974-A (GB)
Title: Improvements relating to the grinding of cutting tools
IPC: B24B3/34
Filed: 1942-08-01
Abstract: 558,974. Grinding-machines. BEDFORD, A. C. Aug. 1, 1942, No. 10799. [Class 60] Apparatus for imparting radial top rake to cutting tools comprises means for traversing the tool past a grinding wheel having the desired radius, or a periphery with a transverse section with that radius. As shown in Fig. 5 the wheel 10 is of the desired radius and the tool 14 is traversed in the direction of the wheel axis. In Fig. 1 the transverse periphery of the wheel is of the desired radius and the tool 14 is traversed at right-angles to the wheel axis. For this purpose the tool is set against an adjustable stop 40a on a platform 15 which is traversed by means of a hand lever 32 across a table 31b pivotally mounted at 30 on a cross member which in turn is pivotally mounted on a vertically adjustable spider 24 provided with guiding members 25.
Patent GB-579233-A (GB)
Title: Improvements in and relating to apparatus for the generation and/or amplification ofultra high frequency oscillations
IPC: H01J25/78
Filed: 1941-08-26
Abstract: 579,233. Cathode-ray tubes. HUGHES & SON, Ltd., H., BECK, A. H. W., and HUGHES, A. J. Aug. 26, 1941, No. 10859. [Class 39 (i)] To generate or amplify ultra high frequency oscillations a monochromatic beam of electrons is formed into groups by causing it to scan the aperture of a hohlraum resonator periodically, whereby energy is interchanged between the electrons in the beam and the field in the resonator by inductive coupling without impact of the electrons on the metal parts of the resonator. In one form, Fig. 1 (not shown), a beam is deflected across the central aperture-in a rhumbatron so that it enters only at the correct time to sustain oscillations therein. By applying a constant bias to the deflecting plates or by tilting their axis, the beam may be made to enter the aperture only at the end of its excursion. Shields are provided to prevent the deflected beam from striking the deflecting plates and the outside of the rhumbatron. In a modification, the shield q, Fig. 2, produces an annular beam which passes between the concentric cylinders o, p and is thereby spread out into a conical beam. By varying the potential applied to cylinders o, p the beam may pass across an annular aperture s, t in a resonator v. A shield w prevents the beam from striking the outside of the resonator. As an oscillator, part of the energy of the resonator is fed back to the cylinders o, p by loop k. The phase of the deflection may be adjusted by altering the length of the cylinders ; this length should differ from a multiple of a wave-length to avoid extinction. As an amplifier, the input is fed to the cylinders o, p and the output, at a harmonic frequency if desired, is taken from the resonator by loop l. The apertures in the resonator may be covered by grids. Conduction current modulation may be applied to the beam in the electron gun.
Patent GB-172571-A (GB)
Title: Improvements in or relating to cooking grills
IPC: A47J37/06
Filed: 1921-04-14
Abstract: 172,571. Tocchio, M. April 14, 1921. Grilling-apparatus. - A cooking-grill comprises a corrugated metal slab c which is preliminarily heated and is of sufficient mass to cook, by residual heat, the underside of a joint placed upon it. Elongated holes e situated at the bottoms of the corrugations d are arranged in transverse rows and are opened or closed by a sliding shutter f having slots corresponding with the holes e. The shutter slides in guides g and closes the holes e during the preliminary heating. The shutter and grill are provided with handles.
Patent GB-1308544-A (GB)
Title: Tomographic apparatus
IPC: A61B6/02
Filed: 1970-03-06
Abstract: 1308544 Position control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 March 1972 [10 March 1969] 10917/70 Heading G1N An arrangement for controlling tomographic apparatus comprising an X-ray device and a recording device comprises a control box having a platform 21 driven at constant speed by a belt C and carrying a finger 22 whose movement controls parallelograms positioning the two devices. The finger moves along a diameter on a carriage 221 moving on rails 222 and in so doing adjusts the setting of a potentiometer 225. A rotatable cam 231 Fig. 2 (not shown) is rotated by a belt 24 and is followed by a rod which varies the setting of a potentiometer 233 via a rack and pinion. The outputs of the two potentiometers 233, 225 are compared and their difference is utilized to control a motor driving the finger and hence potentiometer 225 to reduce the difference to zero. The path of the finger is therefore dependent on the cam profile. The path may be elliptical or hypocycloidal.
Patent GB-307649-A (GB)
Title: Improvements in and relating to the production of mineral lubricating oils
IPC: C10G21/10
Filed: 1928-04-14
Abstract: 307,649. Bloxam, A. G.. (Allgemeine Ges. f³r Chemische Industrie). April 14, 1928. Mineral oils, purifying. - Mineral lubricating oils are produced by subjecting the insoluble. residue, obtained by treating mineral oil distillates with liquid sulphur dioxide, to distillation under reduced pressure over sodium hydrate or other alkali with or without the use of steam.
Patent GB-315479-A (GB)
Title: Improvements in or relating to lids for cooking vessels
IPC: A47J36/08
Filed: 1929-01-16
Abstract: 315,479. Applegate, P. S. Jan. 16, 1929. Lids.-Cooking-vessel lids are provided with devices adapted to function as steam vents or strainers. In the construction shown in Fig. 1, a perforated plate 11, slidable under or over a perforated part of the lid to bring the two sets of perforations into or out of register, is provided with a stud 12 projecting through a slot 13 formed in the lid, which similarly has a stud 9 slidable in a slot 10 formed in the plate. In the form shown in Fig. 2, the plate is slotted to. engage a stud 15 on the lid and is provided with an upstanding finger-tab 17 movable in a transverse slot 16 in the cover.
Patent GB-1533022-A (GB)
Title: Method and apparatus for disengaging particles from gases
IPC: B04C9/00
Filed: 1976-03-19
Abstract: 1533022 Separating particles from gas ASHLAND OIL INC 19 March 1976 [24 March 1975] 11230/76 Headings BIT and B2P An apparatus for separating solid or liquid particles from a gas stream in which they are suspended comprises a chamber 12, a conduit 10 through which the particle-laden gas stream flows, the conduit having an outlet opening 13 leading into the chamber and a side wall port 17 upstream of the opening 13, and a cyclone separator 19 having an inlet connected to the port 17. The apparatus is described in relation to the separation of fine solid catalyst particles from gases produced in catalytic "riser cracking" of petroleum. The conduit 10 is in the form of a riser pipe which enters a gas-disengaging vessel from below and opens at 13 into the disengaging or separating chamber 12. The upper end of the riser pipe is stiffened at 25. As shown, there are two ports 17 in the side wall of the conduit 10 connected to a pair of cyclones 19 which are connected by expansion joints 22 to gas outlet conduits 21 connected to a further pair of cyclones 28 which have gas discharge outlets 30 leading out of the vessel 11 to fractionators. The cyclones 19, 28 have dip legs 20, 29 for discharging separated catalyst particles to the bottom of the vessel 11 from which they are led to a regenerator. The chamber 12 is pressurized by being connected directly to the conduit 10 so that no gas circulation takes place in the chamber. In operation, as the gases are abruptly diverted from the conduit 10 through the ports 17 into the cyclones which are at a lower pressure, the bulk of the catalyst particles are separated from them and are carried by their momentum through the opening 13 into the chamber 12 where they impinge on a deflector 14 which direct them downwardly to the bottom of the chamber. A baffle 33, Fig. 4, may be provided inwardly of the conduit 10 upstream of the port 17 to deflect the particles away from the port. In modifications, the conduit 10 may enter the chamber 12 through its side or top and the cyclones maybe disposed outside of the chamber. Other uses of the apparatus are given.
Patent GB-1035384-A (GB)
Title: Improvements in or relating to flywheels
Inventor: CLERK ROBERT CECIL
IPC: F16F15/30
Filed: 1964-03-17
Abstract: 1,035,384. Flywheels. CLERK, KING, POYNTER & CO. Ltd. June 17, 1965 [March 17, 1964]. No. 11231/64. Heading F2T. A flywheel comprises two opposed sets of laminations, each set being made up of a number of annular discs 1 which are flat at their peripheries, slightly coned over their major area and more sharply coned at their central area, the laminations being pre-stressed at the more sharply coned area by means of collars 5 shiftable towards one another by nuts 7 so as to put the dished areas of the discs into compression and the flat peripheral areas into tension. The drive from the shaft 4 to the laminations is transmitted by friction through one or two plates 3. Ridges 2 are provided to assist in maintaining the discs in concentric location. Sleeves integral with the collars 5 constitute journal bearings for the shaft 4.
Patent GB-1093407-A (GB)
Title: Substituted 1,3,5-oxadiazin-4-ones and their use as herbicides
IPC: C07D273/04
Filed: 1965-03-17
Abstract: The invention comprises compounds of the general formulae <FORM:1093407/C2/1> wherein R is a C1- 8 alkyl group and X is H, Cl or CH3.  The compounds are prepared by reacting a urea of the formula <FORM:1093407/C2/2> with essentially anhydrous formaldehyde, or a source thereof, in the presence of a catalyst which is sulphuric acid, a polyphosphoric acid, or the acid form of a moisture-free mairoreticular high surface area sulphonic acid cationexchange resin. The substituted ureas used as starting materials are prepared by the reaction of a primary amine with an aryl isocyanate.ALSO:Herbicidal compositions comprise at least one compound of the formula <FORM:1093407/A5-A6/1> or <FORM:1093407/A5-A6/2> together with one or more of the following: a solid diluent or carrier, a liquid diluent or carrier, a surface-active agent, an insecticide, a fungicide, another herbicide, an acricide, a molluscicide, a fertiliser, and a propellant such as a liquefied gas.  The compositions may be in the form of wettable powders, emulsifiable concentrates, aqueous suspensions, emulsions, ducts, granular formulations, or aerosols.
Patent GB-200605-A (GB)
Title: Improvements in or relating to nibs for writing pens
IPC: B43K1/02
Filed: 1922-04-22
Abstract: 200,605. Lewis, W. April 22, 1922. Pens.-In order to prevent crossing, one or both blades of a pen nib are provided near the writing-point and on the outer edge with lateral projections which are bent back into sliding contact to form abutments for one another and so limit the relative movement of the blades. In one construction, the blades a, a<1> are each provided with projecting tongues b, b<1> which are bent inwards so that their inner ends overlap and lie in close contact, but leave a passage between the tongues and the body of the nib. In another construction, each blade of the nib is provided with two tongues, one pair of which is bent across the underside and the other pair is bent across the upper side'of the nib, the tongues of one blade being held between the tongues of the other blade. According to the Provisional Specification, recesses may be formed on opposite sides of the blades into which the tongues may be pressed, or only one blade may be recessed, the second tongue being bent to lie on top of the first tongue.
Patent GB-763991-A (GB)
Title: Improvements in or relating to the lining of mining shafts, galleries and tunnels
IPC: E21D5/04
Filed: 1954-04-20
Abstract: 763,991. Shaft linings. HERZBRUCH, H. [trading as HERZBRUCH & SOHNE BERGWERKSUNTERNEHMER, H.]. April 20, 1954 [April 20, 1953], No. 11390/54. Class 85. [Also in Group X] Shafts &c. are lined with stone blocks which are in the form of truncated pyramids of variable hexagonal or quadrilateral section. The blocks are laid in rings with those of adjacent rings interengaging. The lining may be formed of regular hexagonal blocks, irregular hexagonal blocks or a combination of the two as shown, or of blocks of square section at one end changing to diamond section at the other. In the formation of a vault, small wooden pieces 4 may be arranged between the stone blocks so as to yield under pressure.
Patent GB-270322-A (GB)
IPC: F25B15/10
Filed: 1927-04-29
Abstract: 270,322. Electrolux, Ltd., (Assignees of Platen-Munters Rcfrigeratirg System Aktiebolag). May 1, 1926, [Convention date]. Refrigerating, absorption machines for - In continuous-cycle systems wherein a pressure-equalizing inert gas is circulated between the absorber and evaporator by forces due to differences in density of gas columns, a resistance to reverse flow of gas is interposed in the gas circuit, in order to facilitate starting of the circulation and to ensure the desired direction of flow. Such resistance may be obtained by the provision of gas siphons in the pipes 1, 3 and 2, 4, Fig. 4, connecting the absorber A and evaporator G. A complete apparatus with horizontal evaporator G and absorber A is shown in Fig. 5, the liquor circuit comprising an interchanger T, heated coil P and generator O. The gas circulations for various dispositions of the evaporator and absorber are described with the aid of diagrams.
Patent GB-552527-A (GB)
Title: Improvements in or relating to the production of moistureproof sheets or films
IPC: C08J7/052
Filed: 1941-09-09
Abstract: 552,527. Resinous condensation products. BRITISH CELLOPHANE, Ltd. Sept. 9, 1941, No. 11540. Convention date, Sept. 10, 1940. [Class 2 (iii)] [Also in Group VIII] A moistureproof sheet or film comprises an organic non-fibrous base coated with a composition comprising a halogen containing rubber or synthetic rubber derivative, a wax and a urea-formaldehyde-monohydric alcohol resin. The halogenated rubber or synthetic rubber may be chlorinated rubber, preferably of 65-68 per cent. chlorine content, or polymerized chloro-2-butadiene-1.3. The resin may be applied as a monomeric or partially condensed dimethylol urea ether and condensation completed in situ by heating. The organic non- fibrous base and the wax are the same as those described in Specification 550,620. The coating composition may comprise acid condensing agents blending agents and agents for improving the heat-sealing properties of the products as described in Specification 550,620. Specifications 211,446, [Class 2 (ii)], 483,399, 522,643, 522,644, 535,378 and 538,280 and U.S.A. Specification 2,017,866 also are referred to.
Patent GB-581456-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q19/13
Filed: 1944-06-17
Abstract: 581,456. Directive radio systems. PIPPARD, A. B. June 17, 1944, No. 11594. Drawings to Specification. [Class 40 (v)] In order to correct for the distortion of the wave front produced by a spherical reflector associated with a radiating or receiving element such as a dipole or the open end of a wave guide which simulates a point source, means is provided between the reflector and the radiating or receiving element to introduce a compensating distortion of the wave front. A spherical reflector is employed to enable beam swinging to be obtained without deterioration of the polar diagram by movement of the radiating or receiving element along a circle through the focus, concentric with the reflector, and the aberration due to the spherical reflector is least when the focus coincides with the focus of a paraboloid which coincides with the reflector at the edges and the pole. The distorting means may comprise a cap of solid dielectric material with a hemispherical inner surface and of variable thickness to produce the required deformation of the wave front. The inner surface of the cap may be spaced from the radiating or receiving element to enable the radiation to settle down to the steady condition appropriate to a point source. If the radiating or receiving element comprises the end of a solid dielectric wave guide then the dielectric mass may be formed as an approximately hemispherical continuation of the solid filling of the wave guide.
Patent GB-422907-A (GB)
Title: Improvements in or relating to malt kilns, hop drying kilns and the like
IPC: C12C3/02
Filed: 1934-04-20
Abstract: Apparatus for drying malt is adapted also for the germination of barley on its perforated floors by the provision of flues leading from positions above the floors to a fan in the bottom of the apparatus, so that cold air may be drawn over the floors, to stimulate the germination.
Patent GB-1115285-A (GB)
Title: Carbonators
Inventor: BRAND STANLEY THEYER
IPC: B01F3/04
Filed: 1966-03-17
Abstract: 1,115,285. Carbonating liquids. BRATBY & HINCHLIFFE Ltd. 9 March, 1967 [17 March, 1966], No. 11635/66. Heading B1C. In a carbonator in which a jet or spray of liquid (e.g. water or fruit juice) is forced into an atmosphere of carbon dioxide, the direction of the jet is variable to vary its contact time with the gas and hence the degree of carbonation of the liquid. As shown the liquid inlet nozzle 37 is carried on a hook-shaped pipe 33 rotatable by a handle 54. Float switches 64, 65 control the pump, and motor 59, 60 to maintain in the tank a predetermined liquid level which may be observed in sight glass 63. There is a safety valve 66, and a gas inlet control valve 70 connected to a pressure sensing connection 67. A controlled escape of gas takes place through bleed outlet 13 and sight glass 17 to ensure that there is no buildup of the air introduced with the liquid.
Patent GB-1168616-A (GB)
Title: Improvements relating to Operating Means for Flush Cisterns.
Inventor: SMITH JOHN WILLIAM
IPC: E03D5/08
Filed: 1966-03-17
Abstract: 1,168,616. Operating flushing cisterns. MARKES & CO. Ltd. 16 March, 1967 [17 March, 1966], No. 11643/66. Heading E1C. [Also in Division F1] A flushing cistern is operated by a footactuated knob 54 secured to a master piston 40 which when depressed against a spring 46 forces water through a tube 30 to a slave piston 64 whereby a rod 76 and flush-operating arm 82 are raised. The piston 64, which is not connected to the rod 76, is provided with a gravity-actuated ball valve 70. The rod 76 moves in a tube 58 which has a slot 87 in which the arm 82 moves and through which water is supplied to the operating mechanism.