baber/WOPTO huggingface dataset:
Patent GB-823467-A (GB)
Title: Improvements in or relating to electrical networks for frequency-modulated signals
IPC: H03H7/32
Filed: 1957-06-24
Abstract: 823,467. Non-linear networks. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 24, 1957 [June 27, 1956], No. 19811/57. Class 40 (8). [Also in Group XL (c)] A network for the transmission of frequencymodulated signals with simultaneous suppression of amplitude modulation and higher harmonics of these signals comprises a number of sections including voltage-dependent shunt resistances, preferably constituted by crystal diodes, the values of which for the highest signal amplitude constitute an increasing series from input to output so that the group transmission time is substantially constant over the entire signal frequency band. The network is an mderived low-pass Zobel filter having a value of m about 1.3 and comprises mutually-coupled series inductors. At the highest signal frequency the first resistance 7 is adjusted to a value exceeding the characteristic impedance Zo of the network and the values of the other resistances are adjusted so that each exceeds <1>/3 of the value of the resistance following it, e.g. the values of the resistances 7, 8, 9 may be 1.5Zo, 3Zo and 1.5 X 2<n-1>Z0, where n represents the number of whole sections. The resistances may comprise parallel-connected rectifiers having asymmetric conductivity with respect to one another.
Patent GB-1221243-A (GB)
Title: Method of making a grinding pad
IPC: B24B13/02
Filed: 1968-02-02
Abstract: 1,221,243. Making abrading apparatus; stamping. UNIVIS Inc. 2 Feb., 1968 [22 Aug., 1967], No. 19860/68. Divided out of 1,221,242. Headings B3A and B3Q. A Method of making a replaceable grinding pad 30 for a lens grinding tool comprises pressing a metal blank between a grinding tool 16 and an elastic bolster 12, 14. The pad may be secured to the tool 16 by a pressure sensitive adhesive or contact cement. The pad may be pressed in two stages using different tools; the final tool 38, Fig. 5, being the grinding tool forms a rim 34 on a dished intermediate blank (30a), Fig. 4 (not shown), into frictional engagement with its sidewall. Tools with convex grinding faces may be used. Fig. 8 (not shown). The end of the tool may be formed with grooves into which the pad is pressed, Fig. 9 (not shown), and various forms of slit blanks may be used, Figs. 10-13 (not shown). A number of pads or a continuous pad 30c, Fig. 14, may be formed on a wheel 52 by rolling pressure between the wheel and an elastic bolster wheel 54.
Patent GB-205229-A (GB)
Title: Improvements in or connected with baker's ovens and the like
IPC: A21B1/40
Filed: 1922-07-20
Abstract: 205,229. Cook, D. July 20, 1922. Drawings to Specification. Bakers' ovens.-In a Perkins' tube oven having top and bottom groups of tubes, separate solid fuel furnaces are provided for the two groups so that the heating of one group can be controlled independently of that of the other. In the case of a two-deck oven the four furnaces with individual damper controls are arranged at the rear end, preferably at one level below that of the oven sole, and with the pairs for the two decks, or the pairs for the top and bottom groups, together. When individual control is desired for one oven only, three furnaces are provided, two for the top and bottom respectively of one oven, and the third for both groups of the other. In the case of a single-deck oven, the furnaces may be either at the front or the back.
Patent GB-1273549-A (GB)
Title: Frequency sensitive circuits
Inventor: HISCOX LEONARD RAMSAY
IPC: B60L7/00
Filed: 1968-07-29
Abstract: 1,273,549. Braking systems. GIRLING Ltd. 2 July, 1969 [29 July, 1968], No. 19938/69. Heading F2F. [Also in Division H3] The subject matter is as that in Specification 1,273,548, but the claims relate to a frequency sensitive circuit.
Patent GB-865954-A (GB)
Title: Improvements in or relating to greenhouses
IPC: A01G9/14
Filed: 1958-06-21
Abstract: 865,954. Greenhouses. CRESSWELL, H. W. June 19, 1959 [June 21, 1958], No. 19951/58. Class 20(1) A greenhouse comprises a plurality of arcuate frames 1, Figs. 2 and 3 covered by polythene or P.V.C. sheeting and arranged in line separated by resilient, similarly covered ventilating panels 2 having the same covering which are secured to adjacent frames 1 at 13 while the tendency of the lower end to open is adjustably controlled by cords 14. Each frame 1 comprises two ground bars 4 joined by three tubes 3 on which are secured three panels 7 formed of sheeting sandwiched between a lath frame 8, 9 and capping strips 10. Each section 1 is anchored to the ground by metal stakes 15 passing through plates 16 welded to the bars 4. The ends of the greenhouse are closed by similar covered frames incorporating a door. Alternatively two tubular trusses 29, Fig. 4 connected at 31 carry two permanent sections 27 and overlapping ventilator panels 36 secured to longitudinal beams 37.
Patent GB-856801-A (GB)
Title: Improvements in or relating to partitioning in cargo holds of ships
Inventor: AITKEN GEORGE GILFILLEN
IPC: B63B3/68
Filed: 1956-06-28
Abstract: 856,801. Partitioning holds. FISHER & LUDLOW Ltd. Sept. 24, 1957 [June 28, 1956; Nov. 28, 1956], Nos. 19984/56 and 36321/56. Class 113. [Also in Group XXV] A ship's hold is subdivided by a plurality of adjustable vertical partitions 7 which are of grid-like form. Means for adjusting and securing the partitions may comprise an angle member 21, and T-headed bolts 22 provided with slots 23 which engage the parallel spaced strips 20, 17 of the partition and grid like floor panels secured to channels 11 welded to the tank top 10. An upwardly directed channel member adapted to receive the lower end of the partition may replace the angle member 21. The partitions may be supported from spaced brackets 43 by rollers 44 at the top and guided by rollers 50 at the top and bottom, the arrangement being such to permit a limited relative vertical disposition between the guide means. Bracing and horizontal stiffening members 29 having channel portions to receive timber battens may be provided. Specifications 639,244 and 715,638 are referred to.
Patent GB-773210-A (GB)
Title: Process and apparatus for catalytic reactions under high pressure
Inventor: JR CLAUDE ROBERT SUMMERS
IPC: B01J8/38
Filed: 1954-07-08
Abstract: <PICT:0773210/III/1> A reactant to be catalytically converted (e.g. a hydrocarbon to be destructively hydrogenated or hydrosulphurized or naphthalene to be oxidized to phthalic acid) is passed at elevated pressure through a dense bed of fluidized catalyst in a reactor 2 whilst reaction products are removed therefrom: the reactor is divided by a vertical partition 10 into two compartments into one of which regenerated catalyst is intermittently introduced, from a chamber 62, thus causing spent catalyst to overflow into the second, withdrawal compartment: it is intermittently withdrawn into a chamber 16 and thence passed to a regenerator 38 at lower pressure before recycling to the first-mentioned chamber 62, the pressure in said chambers being so varied as to maintain the pressure in the reactor. The process is described with reference to hydrode-sulphurizing a hydrocarbon at 1000 p.s.i.g. and 850 DEG C. with a nickel tungstate on silica-alumina catalyst.  The figures refer to the described embodiment in which the withdrawal compartment is of annular shape and surrounds the reaction compartment into which hydrogen at 1000 DEG F. may be introduced through lines 14 to remove tars &c.: the function of the compartment could be interchanged.  Jets 26 and 68 are used to transport the circulating catalyst.  Pressure equalizing lines with valves 42 and 96, 56 and 84 and lines for de- and repressurizing are provided.  A stripping gas such as steam is passed into chamber 16 before regenerating the catalyst in 38 with a mixture of air and steam.  Preferred features include a withdrawal compartment having at least the volume of each of the containers 16 and 62, preferably about the same volume; positioning chamber 16 below the bottom of the withdrawal compartment, chamber 62 above the level of the partition in the reactor, and valve 20 in line 18 above the level of the catalyst in chamber 16, so as to drain free of catalyst particles.  A plurality of the reactors of the type described with associated chambers for introduction and withdrawal of catalyst may be used in conjunction with a single regenerator whereby continuous regeneration under optimum conditions may be obtained: by employing a pair of introduction chambers and a pair of withdrawal chambers, continuous addition of catalyst to and removal of catalyst from the reactor may be achieved.
Patent GB-849303-A (GB)
Title: Improvements in magnetic core storage devices
Filed: 1957-06-25
Abstract: 849,303. Magnetic core storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 25, 1957 [June 26, 1956], No. 20008/57. Class 38 (2). The magnetic core storage device of Specification 789,668 is modified by providing additional windings 13, 15 each linking a different half of the cross section of the core through holes 7, and by dispensing with an input winding. Windings 13, 15 are capable of being short circuited by switches 19, 21. With switches 19 and 21 open pulses in a winding 9 determine non destructively the state of the core in the manner described in Specification 789, 668. With switches 19 and 21 closed, on the application of a pulse on winding 9 the flux in the section which would otherwise circulate locally round apertures 7 is prevented from so doing by the reverse flux due to the s.c. windings and is consequently caused to flow round the core. Thus the state of the core may be changed by the application of the appropriately sensed pulse to winding 9. An output winding 23 is provided. An array of cores may be arranged; and selection of a particular core may be made by short circuiting both the additional windings of that core.
Patent GB-238251-A (GB)
Title: A regulating device for the automatic measuring of given pressures of gases, vapours or air
IPC: G01L7/22
Filed: 1925-08-10
Abstract: 238,251. Liese, H. [Firm of]. Aug. 11, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Recording by co-ordinates.-Relates to a liquidlevel pressure gauge in which two pressures are introduced by pipes 76, 77 to chambers 72 immersed in liquid in a tank 61. Two adjustable overflows 64, 65 and a fixed overflow 63 are provided. The overflows 64, 65 are set by cams 70 which are positioned by water wheels 68, 75 partly immersed in liquid in a tank 60. Each water wheel has two sets of buckets 84, one set receiving water by a pipe 66 or 67 from the fixed overflow 63, and the other set receiving water from the overflow 64 or 65. On the pressure difference changing the overflows 64, 65 are automatically adjusted to re-establish balance. A cord taken round a disc on the water-wheel 68 adjusts a lever 78<a> and a cord 81 taken round a disc 79 on the wheel 75 adjusts a roller 80 on the lever. A pen 82 carried by the wheel 80 marks a clock-driven record strip 83.
Patent GB-201754-A (GB)
Title: Improvements in the construction of line-floats for fishing
IPC: A01K93/00
Filed: 1922-07-22
Abstract: 201,754. Loveland, A. S. July 22, 1922. No Patent granted (Sealing fee not paid). Line floats.-A line float is constructed from a barrel-shaped piece of wood in whicli slots are made to hold ground bait.
Patent GB-1412855-A (GB)
Title: Safe-latching closure cap with bayonet connection
IPC: B60K15/05
Filed: 1973-04-27
Abstract: 1412855 Container closures A COOPER 27 April 1973 [4 May 1972] 20144/73 Heading B8T A closure cap from the filling spout 2 of a vehicle fuel tank has bayonet lugs 22, 23 integral with, or fastened to prong members 26, 27 respectively so that if the cap is incorrectly applied, Fig. 10 (not shown), with only one of the bayonet lugs fully engaged, the prong member at the opposite part of the cap will engage against a side edge of the insertion notch 5 or 6 of the spout 2 and thereby prevent the cap from being rotated. A sealing disc 21 is provided on the cap. The preventive action may be carried out by the ends of a single fin (29), Fig. 13 (not shown), and the bayonet lugs (33) and prong members (37), Figs. 11-12 (not shown), may engage an external flange of the filling pipe.
Patent GB-569839-A (GB)
Title: An electrical course indicating navigation instrument
IPC: G01S1/02
Filed: 1943-12-02
Abstract: 569,839. Earth inductor compasses. AGA-BALTIC AKTIEBOLAG. Dec. 2, 1943, No. 20159. Convention date, Feb. 2, 1943. [Class 37] A course-indicating instrument comprises fixed magnetic cores 10, 11 with a rotatable magnetic core 12 between them. The cores 10, 11 carry windings 16, 17 connected in series with a rectifier 18 and a resistor 19 which is by-passed for A.C. of higher frequency by a condenser 20. A valve 21 has its cathode connected to one terminal of the resistor 19 by means of a bias resistor 22, its control grid being connected to the other terminal of the resistor 19. The anode circuit of the valve 21 contains the primary winding 24 of a low-frequency transformer, tuned to the modulation frequency by means of a condenser 25, the secondary winding being connected to one coil 27 of a wattmetric instrument 28. The other coil 29 is connected to A.C. mains 30 of fixed frequency. A coil 31 in series with a phase correction filter 32 is connected across the mains and generates a weak alternating magnetic field which polarizes the magnetic system 10, 11, 12. The reading of the wattmeter 28 is dependent upon the angle between the axis of the cores 10, 11 and the horizontal 'component of the earth's field. This angle may be read directly or the cores 10, 11 may be moved into the direction in which the wattmeter reading is zero, the direction of the cores being thus determined in relation to the earth's field. A filter 33 eliminates harmonics from the coil 29 of the wattmeter. The amplification of the valve 21 is increased with decreasing voltage applied to the grid. The coils 16, 17 may alternatively each be connected to a separate rectifier, the rectifiers being coupled to the same load resistor. The magnetic system may be arranged to be manually or automatically turnable, the setting being indicated on a dial. The magnetic system may be controlled by a gyroscope so that the member 12 always rotates in the horizontal plane.
Patent GB-305053-A (GB)
Title: Improvements in or relating to printing cylinders for rotary printing machines
IPC: B41F27/12
Filed: 1927-07-29
Abstract: 305,053. Barton, A. J. July 29, 1927. Printing - surfaces. - A printing-cylinder is formed of two or more longitudinal sections capable of being secured together with the edges of one or more printing-plates between the sections. In one form, the cylinder comprises two sections 1, 2 having recesses 8 in their radial faces, the outer ends 12 of the recesses being curved to form bearings for rounded bars 16 to which the ends of the printing-plate 6 are secured. When the sections 1, 2 are secured together, the bars 16 are rocked about the bearings 12 to tension the plates and lie wholly within the recesses 8. The sections 1, 2 may be secured together by collars bolted to the ends of the sections and engaging conical end portions on the sections. If the cylinder is required to carry one printing-plate only, one section may carry a plain plate or may be of larger diameter so as to lie flush with the surface of the plate on the other section.
Patent GB-1381963-A (GB)
Title: Counter using insulated gate field effect transistors
IPC: H03K3/038
Filed: 1972-05-01
Abstract: 1381963 Electronic counters TOKYO SHIBAURA ELECTRIC CO Ltd 1 May 1972 [7 May 1971 28 July 1971] 20234/72 Heading G4A An n-scale counting circuit comprises n-2 cascade connected cells X of a first type having two inputs I 1 , I 2  and an output O, the output O of one cell being connected to the input I 1  of the next cell in the cascade, and the cells being such that a setting input at I 1  sets the output O, one clock period later, if the second input I 2  is at one voltage level and the output O is reset if the second input I 2  is at another voltage level the output O of the last such cell being connected to the input I 1  of the first by way of an inverter I and a cell X n-1 , of a second type having only one input and such that the output is set one clock period after a setting input appears at its input, in series, the junction between the inverter and cell X n-1  being connected to all of the second inputs of the cells X 1 -X n-2 . The inverter may be located before or after the cell X n-1  (compare Figs. 1A, 2A); a buffer circuit B may be included. Several detailed circuits of each form are described all using MOSFET's. Circuits are described using complementary P- and N-channel FET's and others using only P- channel types; some circuits employ 2-phase clock pulses others 4-phase, the latter requiring a lesser number of transistors; some circuits are for dynamic counters while others have additional memory circuits for use as static counters.
Patent GB-1495879-A (GB)
Title: Extruders for plastics
IPC: B29C48/11
Filed: 1976-05-18
Abstract: 1495879 Die for extruding honeycomb structure COVEMA Srl 18 May 1976 20373/76 Heading B5A A plastics honeycomb structure is extruded from a shaping passage 11 defined between a die 3, and a plurality of mandrels which extend downstream from a part 9 of an adaptor 2, the die 3 and the adaptor 2 being releasably attached at bolts 4 to a die head 1, to facilitate replacement by another shaping means for the extrusion of a honeycomb of a different size and/or shape, or the extrusion of a solid section. To prevent defects to the honeycomb arising during its passage from the die through a  vacuum sizing means, atmospheric pressure is admitted to the bores of the honeycomb, via an adaptor inlet passage 14, 13, an adaptor bore 12 extending through the part 9 transversely of all the mandrels, and a passage 16 extending longitudinally through each mandrel 9 to its downstream end. The plastics material is delivered to the extrusion passage 11 from a die head passage 7, via a passage 17 extending transversely across the adaptor and divergent passages 6 connecting along a continuous passage 8 extending on the adaptor downstream face around the mandrels, and interconnected passages 10 defined between adjacent mandrels 9 and between the mandrels and the surrounding die 3.
Patent GB-1433858-A (GB)
Title: Neutralisation of cyanide residues
IPC: C02F1/467
Filed: 1974-05-09
Abstract: 1433858 Electrolytically oxidizing cyanide STANDARD TELEPHONES & CABLES Ltd 9 May 1974 20440/74 Heading C7B Cyanide waste in an aqueous wash liquid is oxidized with electrolytically generated OCl<SP>-</SP> by passing the liquid, containing Cl<SP>-</SP>, through one or more electrolysis regions in each of which an OClconcentration of 750-850 ppm is maintained, e.g. by means of a redox electrode. The Cl<SP>-</SP> may be added as the Na, K, NH 4  or Ca salt and the pH may be monitored and controlled to pH 10-11 using the redox electrodes. The liquid may be continuously recirculated via washing regions (e.g. forming part of a plating process), the electrolysis regions and a buffer tank, with liquid and/or Cl<SP>-</SP> additions as required.
Patent GB-373005-A (GB)
Title: Improvements in and relating to universal rolling mills
IPC: B21B17/14
Filed: 1931-07-17
Abstract: 373,005. Rolling. ASBECK, G., 34 Wahlerstrasse, Rath, Dusseldorf, Germany. July 17, 1931, No. 20537. [Class 83 (iv).] The three rolls 23 of a universal rolling mill driven by common bevel gear 75 are adjusted radially simultaneously to enlarge or diminish the pass opening by turning a hand-lever 45 which through the worm shaft 44 rotates the disc 41, the cam slots 40 of which rock the bulbous ends 39 of framings 34 carrying eccentric bushes 36 for the roll shafts 35 and so moving them. Separate radial adjustment for each roll is obtained by a hand-wheel 47, Fig. 3, integral with the bulbous ends 39 of the stirrup-like framings 34, the ends 39 being merely coupled to the framings 34 by dogs 49, the different engagements of which rock the framing 34 and so turns the eccentric bush 36, Fig. 2, for radial movement of each roll shaft independently. To adjust each roll axially the hand-wheel 66 rotates the worm 64, Fig. 3, and worm ring 59, Fig. 4, the internal thread 58 of which screws up or down the bushes 57, 35, carrying with them the roll shaft 37. Each roll is supported by bearings on both sides carried in the frame 34, one bearing having the eccentric bush for adjustment, the other being at the free end of the roll shaft and capable of being swung outwards. Each roll shaft 37 is driven by its gear wheel through a dog clutch 87, Fig. 5, from which it can be disconnected by a hand-wheel 102. The shaft 84 acts as a wobbler. All the rolls and their mountings are mounted on a trunnion shaft 70, Fig. 1, with pulleys 71 so that it can be run out on rails 72 clear of the driving gear ring, when it can then be lifted away by a crane engaging the lifting stirrup 73. In a modification the whole assembly of the rolls can be swung outwardly by worm and screw about a lateral driving shaft. A slipping clutch may be incorporated in the roll shaft drive.
Patent GB-908765-A (GB)
Title: Improvements in furnaces for the heating of ferrous or non-ferrous billets
Inventor: PARDOE THOMAS HARRY
IPC: F27B9/16
Filed: 1960-06-13
Abstract: 908,765. Heat treatment furnaces. SOUTH WESTERN GAS BOARD. May 30, 1961 [June 13, 1960], No. 20709/60. Class 51 (2). The inner treatment chamber of a vertical retort for annealing brass castings comprises a series of superposed, inter-nesting shelves 18 each formed with a discharge opening cooperating with similar openings 24 in a distributer wheel 20 keyed to a central driving shaft 13. The shelf discharge openings are arranged in a backward spiral in relation to the rotation of the shaft and castings fed through a shoot 31 pass in turn over each shelf to a discharge shoot 30. The retort is heated externally by tangentially disposed burners 25 from which gases follow a sinuous path to a flue 27. In a modification. Figs. 4-9 (not shown), the inner chamber comprises two castings formed with slots receiving lugs on the shelves. A further modification, Fig. 10 (not shown), has a rotary, inner chamber and shelves with a fixed central shaft carrying the distributer wheels.
Patent GB-387596-A (GB)
Title: Process of producing pure liquid ammonia from ammonia liquor
IPC: C01C1/00
Filed: 1932-07-22
Abstract: <PICT:0387596/III/1> Anhydrous ammonia is obtained from the weak ammonia liquor obtained in the distillation of fossils by distilling the liquor in a lime still 1, and passing the distillate through a dephlegmator 2 from which the aqueous distillate is returned to the still while the ammonia vapors with other impurities are cooled in a condenser 3 and then absorbed in water in a cooled absorber 4 which is finally heated to drive off the ammonia and condense it under pressure.  Ammonium sulphocyanide, cyanide, nitrate, iodide, iodine, and similar ammonia absorbents may replace the water.  When all the ammonia is absorbed the absorbent is heated by passing steam through coil 7 and the ammonia is driven off and after passing through a cooler 9 is liquified under pressure in a reservoir 10 most of the impurities remaining in the vessel 4.  The ammonia is repurified by distillation from the vessel 10 by reduction of pressure and reabsorption in a vessel 11 from which it is again distilled and cooled and liquified in vessels 14, 15, 16.  In a modification water alone is used as absorbent and a dephlegmator filled with coke, packing rings, &c., is interposed between the absorber 4 and the cooler 9.