baber/WOPTO huggingface dataset:
Patent GB-749588-A (GB)
Title: Improvements in or relating to radar systems
Inventor: WRIGHT PETER MAURICE
IPC: G01S13/58
Filed: 1954-05-25
Abstract: 749,588. Radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BUCKINGHAM, J. May 25, 1954, No. 30143/52. Class 40 (7). A frequency-modulated radar system of the type described in Specification 736,607 is modified so that the colour of the target indication on the display gives an indication of the object's radial velocity. The system described is exactly the same as that of the above-mentioned Specification as far as the frequency spectrum analyser. The analyser of the present invention is provided with two or more sets of filters F1A, F2A ... and F1B, F2B ... which are made of different frequency characteristics. The output of each set of filters is taken to a different rectifier 9A, 9B and the rectified signal used to control the display of a particular colour. Due to Doppler shift the beat-frequency signals associated with objects with differing radial velocities are changed by differing amounts and produce pulses of relatively different amplitudes in the rectifier outputs. The resultant mixed colour of the combined display therefore also differs. Either a two or three-colour tube may be used or the appropriate number of different tubes with different coloured displays (or different colour filters) whose displays are optically superimposed. Approaching and receding targets may be separated. Specification 736,602 also is referred to.
Patent GB-660149-A (GB)
Title: Method of producing porous structural materials
IPC: C04B38/06
Filed: 1948-11-19
Abstract: 660,149. Porous materials. MAY, P. (Deutsche Eisenwerke Akt.-Ges.). Nov. 19, 1948, No. 30176/48. Class 70 A porous structural material or concrete aggregate is formed by sintering in a plant of suction type, e.g. a Dwight-Lloyd band, a mixture of granular material, such as granulated slag, brick dust, foundry refuse, blast-furnace flue dust, or other dust on slime containing metal oxides, and waste material containing up to 30 per cent fuel, e.g. waste from coal-washing plants, lignite waste, or boiler ash. The fuel-containing waste is preferably of a grain size up to 15 mm. Structural elements are formed from mixtures of the product with cement, hydraulic lime, gypsum, bitumen, tar, pitch, sulphite liquor or cellulose.
Patent GB-1243877-A (GB)
Title: Improvements in process for metalliding aluminum surfaces
IPC: G01R33/389
Filed: 1969-06-16
Abstract: 1,243,877. Metalliding aluminium surfaces using fused electrolyte. GENERAL ELECTRIC CO. June 16, 1969 [July 1, 1968], No. 30284/69. Heading C7B. Metallide coatings of metals selected from Li, Be, Mg, Sc, Y, La and other rare earths e.g. Ce, Ac and other actinides e.g. U, Hf and Zr, are formed on Al metal or alloys in a fused electrolyte cell in which the Al metal or alloy as the cathode is joined through an external electrical circuit to one or more of the metalliding metals as the anode; the fused electrolyte is composed of chlorides and/or bromides with or without fluorides of Group IA and IIB i.e. alkali and alkaline earth (including Be and Mg) metals, and 0À01 to 100 mole % of a halide of the metalliding metal, and is maintained at a temperature of at least 350 C. but below the M. P. of the Al or the alloy coating being formed thereon, in the absence of oxygen e.g. by using a vacuum, nitrogen or one of the inert gases; and the current flow is controlled in the cell so that the C. D. of the cathode does not exceed 10 amp/dm<SP>2</SP>; an applied e. m. f. not exceeding 1À0 volt may be connected in series with the external circuit. Combinations of the metalliding metals can be diffused into the Al surface simultaneously and/or sequentially. Examples of electrolyte are (1) BaCl 2 , KCl, NaCl and CeCl 3  to form aluminium ceride; (2) BaCl 2 , LiCl and YF 3  for yttriding; (3) MgCl 2  and KCl to form an alloy of Al and Mg; and (4) BaCl 2 , KCl, NaCl and UCl 4  for uraniding. Initially, electrolytic clean-up runs are effected against Ni strips or screens as cathodes to remove impurities from the electrolyte.
Patent GB-363029-A (GB)
Title: Process for the manufacture of artificial materials from polyvalent alcohols and polybasic acids or their anhydrides
IPC: C08G63/127
Filed: 1930-10-09
Abstract: Ester-condensation products.--Polybasic acids or their anhydrides, such as phthalic anhydride and polyhydric alcohols, such as glycol, are condensed in the presence of high-boiling indifferent liquids such as tetrahydronaphthalene, decahydronaphthalene or cymene, fatty oils being excluded the water split off during the reaction passing off by distillation together with the said liquid.  The product, which may be mixed with softening materials, colouring, or filling materials such as heavy spar or ground slate, can be used for the manufacture of gramophone records or spools for the artificial silk industry.  In an example glycerol and phthalic anhydride are condensed in the presence of tetrahydronaphthalene.
Patent GB-1061890-A (GB)
Title: Interlock system for a contactor or contactors associated with an isolating switch
Inventor: PEARSON STANLEY JOHN
IPC: H01H9/26
Filed: 1964-08-01
Abstract: 1,061,890. Electromagnetic contactors; interlocking of switches. CONTACTOR SWITCHGEAR Ltd. Nov. 1, 1965 [Aug. 1, 1964], No. 30416/64. Heading H2B. An electromagnetic contactor is connected in series with an isolating switch which is provided with a latch which normally prevents opening of the isolator and which can be released only if the contactor contacts are open. An operating shaft 12, carrying a handle 11 of the isolator, also carries a boss 14 normally latched by a plate 16 biased by a torsion spring 18. A pushbutton 20 is arranged to tilt a lever 22 which engages a stud 33 to release latch 16. Attached to lever 22 is one end of a cable 24 slidable in a sheath 25, the other end of the cable being attached to a plate 27 pivoted on the contactor and engageable by a latch plate 35, carried by the movable contact bridge 34 of the contactor, when the contacts are closed so as to prevent lever 22 being tilted. In a modified arrangement (Fig. 4, not shown) the cable 24 is placed under tension by two strong springs (44), (46) whose forces normally cancel but in the event of cable breakage serve to apply a greatly increased resistance to push-button 20 to indicate the fault. The invention may be employed with a contactor having a pivoted armature (Fig. 5, not shown). In another arrangement (Figs. 6, 7, not shown) push-button 20 is coupled to the latch by a toggle linkage (62), (63) which is held straightened by the cable 24 so long as the contactor is open but is collapsed so that the pushbutton cannot operate the latch when the contactor is closed. In a further arrangement (Fig. 9, not shown) the cable 24 is directly coupled to the contact bridge 34 and normally provides a pivot (75) about which the latch plate turns when push-button 20 is depressed but which is retracted when the contactor closes so that the latch plate turns about a second pivot (72) which is so close to shaft 12 that release is impossible. In yet another arrangement (Fig. 10, not shown) button 20 acts on the latch plate by a pin (21d) which passes through a hole (79) in a plate (78) attached to the cable 24, the plate (78) being moved by closing of the contactor to prevent pin (21d) passing through the hole (79). When several contactors are associated with a single isolator switch, the plates 27 of the contactors are coupled together by further cables 24 in the arrangements of Figs. 1-4 but in the other arrangements where the cable is held taught when the contactor is open a compensator device (Fig. 8, not shown) is necessary to ensure that latch 16 can only be released when all the contactors are open.
Patent GB-540209-A (GB)
Title: Improvements relating to the concentration and storage of olefins and to the separation thereof from gaseous mixtures
IPC: C07C11/02
Filed: 1939-11-21
Abstract: 540,209. Separation and storage of olefines. STANDARD OIL DEVELOPMENT CO. Nov. 21, 1939, No. 30481. Convention date, Dec. 30, 1938. [Class 2 (iii)] Olefines containing two to four carbon atoms are separated from hydrocarbon mixtures by contacting them with an aqueous solution of pyridine or piperidine and a cuprous salt, whereby the olefines are absorbed and stored. To liberate them, the absorption mixture is subjected to heat or reduction of pressure. Tables are given showing the solubility of ethylene and propylene at different temperatures in aqueous solutions containing pyridine and acetic acid saturated with cuprous oxide or containing pyridine, cuprous chloride and an excess of hydrochloric acid. If desired, propylene may first be removed from the initial gas by scrubbing in known manner with sulphuric acid, gas oil or a polymerizing agent, after which ethylene may be obtained by use of the above absorbents. Any acetylene present is preferably first removed, either by selective hydrogenation or by the method of Specification 540.208. The Specification as open to inspection under Sect. 91 also describes the use of any liquid organic nitrogen compound in place of pyridine or piperidine, and mentions formamide, acetamide and the higher aliphatic and aromatic amines. The solubility of olefines in organic solvents is stated to be improved by the addition of cuprous chloride together with higher aliphatic and aromatic amines, and a table is given contrasting the solubility of ethylene at various temperatures in isopropyl alcohol alone and in a mixture of isopropyl alcohol, dibutylamine and cuprous chloride. This subjectmatter does not appear in the Specification as accepted.
Patent GB-505214-A (GB)
Title: Improvements in the production of combined sound and colour picture films
IPC: G03C7/24
Filed: 1937-11-08
Abstract: 505,214. Photographic sound and picture films. I. G. FARBENINDUSTRIE AKT.-GES. Nov. 8, 1937, No. 30625. Convention date, Nov. 9, 1936. [Class 98 (ii)] A multi-layer sound and picture film material has on one side of the support one or more silver halide emulsions layers containing dyestuff components for the formation of the picture records and on the other side a silver halide emulsion layer containing no dyestuff component, into which layer is copied the sound record. The film which may be used either for taking or copying, may be exposed from one or both sides, and exposures may be either successive or simultaneous. The treatment baths for the picture records are caused to act on one side of the film by using either a floating process or a process employing a resist. If the sound track is only subsequently exposed, no particular precautions are necessary, and the sound record can be developed with a special developer. If the film is developed by reversal, the sound exposure may precede the second development which then effects both picture and sound track development. Specifications 458,400, 466,823, 468,946, 479,838, 481,601, 483,000, 484,698, 488,048, 489,093, and 489,274 are referred to.
Patent GB-172837-A (GB)
Title: Improvements in sifters for cinders and the like material
IPC: F24B15/00
Filed: 1920-10-30
Abstract: 172,837. Powell, L. S. Oct. 30, 1920. Rotary sieves.-Relates to cinder-sifters of the type in which a sifting-drum is rotatably mounted in a casing fitted with drawers to receive the dust and the sifted cinders. Two solid-bottomed drawers 10, 11 are provided, to receive respectively the dust and the cinders, and a shrouding device, for example, a roller blind 12, is provided to prevent rising of dust when the drawer 10 is opened. The sheet material 6 forming the sieve is shaped in section as shown in Fig. 3 with one end 9 extending radially inwards leaving a charging-opening 8 which serves also for discharging cinders when the direction of rotation is reversed.
Patent GB-192222-A (GB)
Title: Improvements in or relating to circular knitting machines, and the goods produced thereon
IPC: D04B9/30
Filed: 1921-11-18
Abstract: 192,222. Blackburn & Sons, Ltd., G., and Widdowson, T. Nov. 18, 1921. Circular machines; knitted fabrics.-The patterning attachment described in Specification 184,339 is modified in that in place of a single central pattern cam, two cams H, H<1> which may be duplicates, are used. The cams are mounted on the sliding sleeve J with a space H<2> between them. When they are lowered the thread guides A which are released and permitted to come into action by reason of the displacement of the cam H', instead of remaining in action until the cam H' is again raised, as would be the case were a single cam used, are by a further lowering movement of the sleeve J placed out of action by the other cam H. The lower half of the diamond outline shown in Fig. 7 is produced as above described by a group of nine thread guides A working over eighteen needles N and having their butts A<1> disposed as shown, the upper half being produced by raising the cams H, H<1>. By using guides A with double lower ends to supply threads to two adjacent needles, the diamond outline shown in Fig. 8 is obtained, the cams H, H' being first raised and then lowered. The diamond figure shown in Fig. 5 is produced by five guides A working over nine needles. The guide 1 is independent of the control cams and is traversed one needle space per course to produce the right hand half of thb diamond. The lefthand half is produced by the guides 2 - - - 5 the butts A<1> of which are disposed as shown in Fig. 4 and are controlled by the cams H, H<1>. By removing one of the cams the effects shown in Figs. 9 and 10 can be produced. Specification 12552/08 is referred to.
Patent GB-428914-A (GB)
Title: Improvements in or relating to perambulators
IPC: B62B9/18
Filed: 1934-10-27
Abstract: 428,914. Vehicle spring-suspensions. WILSON, J. W., and WILSON, W. N., Silver Cross Works, Whitehouse Street, Hunslet, Leeds. Oct. 27, 1934, No. 30846. [Class 108 (ii)] In perambulators providedwithsprung independent axles, each axle is cranked to afford two arms with the centre portion constituting the fulcrum, one arm carrying the wheel and the other being resiliently mounted. As shown the axles 3 are provided with cranked ends one of which carries the wheel 5 and the other is controlled by a buffer spring 6, the centre portion being rotatably mounted in bearings 4 carried by cross battens 1 secured to the body. If desired the cranked ends of the axle may point in opposite directions and the buffer spring may be mounted in a tubular casing through a side slot in which the cranked end projects.
Patent GB-245747-A (GB)
Title: Can openers
IPC: B67B7/70
Filed: 1925-12-07
Abstract: 245,747. Killman, T. A. Jan. 8, 1925, [Convention date]. Opening by cutting.-A can opener comprises a vertical support 10 provided at the lower end with a clÓmp for attachment to a table &c. and having an upper inclined extension 12 formed with a bearing opening for the spindle 17 of a bevelled cutter disc 18, the disc being so mounted that the bevelled edge is substantially vertical. Below the cutter the support has a vertical slot 21 in which slides a flanged bearing 22 carried by a link 23. The bearing supports the spindle of a knurled disc 27 adapted to engage the underside of the bead R of the can and turnable by means of a crank H. The link is formed with an opening 30 in which is rotatably fitted a disc 29 formed on an operating arm 28 and pivoted eccentrically to the support at 31. The arrangement is such that when the arm 28 is turned down into the limiting position shown the bearing is raised to the upper end of the slot 21: in this position the knurled disc and the cotter disc overlap as shown and are in position to cut out the top of a can C held between them. Movement of the arm 28 upwardly separates the cutter and the knurled discs, enabling a can to be placed in position or removed. Horizontallydirected arms 20 arranged on the support 10 at the sides of the cutter are to prevent tilting or oscillation of the can and spilling of the contents.
Patent GB-208170-A (GB)
IPC: C10G7/00
Filed: 1923-12-10
Abstract: 208,170. Puening, F. Dec. 11, 1922, [Convention date]. Heating-apparatus. - Transfer of heat to materials or articles is effected by passing a body of heating-gases alternately in opposite directions through a heating chamber. In the apparatus shown, in which the heatabsorbing element is a tubular heater 10 for gas, oil or water, the two ends of the chamber 9 are connected by flues 16, 17 to the upper and lower ends of a large vertical cylinder 15 above and below a piston 18 operating therein. At each end of the chamber is a perforated wall 13, and beyond these walls are perforated vertical flues 34, 35, by which heating gases are supplied to the system from combustion chambers 28 beneath, even distribution of the gases over the height of the chamber being effected by graduated damper blocks 39 in the ports 36. Between the walls 13 and the corresponding flues 34, 35 are outlet ports 40 leading through regenerators 41, 42 and valve-controlled flues 43, 44 to a common stack flue 46, in which may be an exhaust fan 47. The valves 49, 50 in the flues 43, 44 are inter-connected and are so arranged and operated at each reversal of flow that the port 40 at the end of the heating-chamber from which the gases are flowing towards the cylinder is in communication with the stack. The piston is protected by a covering 26 of refractory material and is cooled by water supplied through a pipe 22 within the piston rod to the space beneath a partition 20 in the head. As an additional protection against the action of the hot gases, relatively cool waste gases may be supplied alternately above and below the piston through pipes 81, 82 under the control of automaticallv-operated valves 85, 86. The piston is actuated from a motor 60 through reducing gear 61, the crank 58, link 57 and the rocker 54, while the valves 49, 50, and 85, 86 are operated from the rockshaft 53 through links and a slipping device consisting of a band encircling a sheave 70 on the shaft and held friction-tight thereon by a spring 74. The surplus heating-gases may be withdrawn continuously from the middle of the chamber instead of alternately from the two ends. In a modification the flues 34, 35 are replaced by imperforate tubes over which the heating-gases pass in their to and fro travel.
Patent GB-640981-A (GB)
Title: Improvements in or relating to high frequency electron discharge tube structures
IPC: H01J25/12
Filed: 1942-10-09
Abstract: 640,981. Electric resonators. SPERRY CORPORATION. Oct. 9, 1942, No. 31097/48. Convention date, Oct. 23, 1941. Divided out of 640,895 and addition to 581,983. [Class 40 (viii)] In a modification of the resonator construction of the parent Specification, both walls of the resonator are provided with conductive members cooperating to form capacityloading means. In one form the resonator 3, Fig. 1, is provided with tubes 5b, 9 projecting from fixed wall 7a and flexible wall 20 respectively, and carrying loading flanges 19, 21. In another form, Fig. 2, intermeshing tubular conductors 30, 32 and 34 are carried by end wall 26 and tube 9 respectively. The application to the frequency-multiplier tube shown, as in Specification 640,895, is disclaimed.
Patent GB-628833-A (GB)
Title: A system for separating synchronising pulses from signal-modulated pulses
IPC: H04B7/08
Filed: 1946-10-18
Abstract: 628,833. Multiplex radio pulse signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 18, 1946, No. 31124. Convention date, Oct. 18, 1945. [Classes 40 (v) and 40 (vi)] A system for separating synchronizing pulses from series of signal modulated pulses, comprises a gating stage, and means responsive to the synchronizing pulses only for generating blocking pulses to render the gating stage insensitive except at times corresponding to the arrival of the synchronizing pulses. The incoming train of signal and synchronizing pulses of fixed amplitude is applied to the control grid of valve V1 in Fig. 1, which acts as a gating valve controlled by negative pulses applied from valve V6. In the absence of the negative gating voltage, valve V1 conducts when a positive pulse is applied, a negative impulse being applied through diode V2 to the circuit C3, R4, and the grid of-valve V3 so that this valve ceases to conduct. The short time constant C3, R4 is such that the negative potential on the grid of valve V3 leaks away between pulses. Synchronizing pulses are distinguished from the signal channel pulses by being composed of two closely spaced pulses, so that the period during which valve V3 is cut off is longer when the input pulse possesses the synchronizing characteristic. When valve V3 is cut off, condenser C4 charges through resistance R5, so that the potential of the grid of valve V4 rises. This rise in potential is greater in the case of the synchronizing pulses than in the case of the channel pulses and is then sufficient to render valve V4 conducting. The output from valve V4 is used to trigger off a multivibrator circuit V5, V6. The active period of the multivibrator circuit determined by the condenser resistance circuit C7, R8, is made slightly less than the period between synchronizing pulses, so that the negative pulse on the screen grid of valve V1, derived from the output of valve V6, is maintained until just before the next synchronizing pulse is due. Output pulses corresponding to input synchronizing pulses are taken from valve V4. A modification (Fig. 3, not shown) has the diode V2 omitted, and this circuit is suitable for use with synchronizing pulses characterized by their width. Fig. 4 (not shown) describes a similar circuit utilising triode tubes only, the gating pulse being applied to the cathode of V1 from the output of an additional triode valve V7. Specification 583,117 is referred to.
Patent GB-917018-A (GB)
Title: Improvements in or relating to variable inductances
Inventor: PARK KENNETH JOHN
IPC: H01F29/14
Filed: 1960-09-09
Abstract: 917,018. Inductances. GENERAL ELECTRIC CO. Ltd. Aug. 17, 1961 [Sept. 9,1960], No. 31133/60. Addition to 713,028. Class 38 (2). A variable saturable inductance having an A.C. winding arrangement which does not induce A.C. of fundamental frequency in the D.C. saturating winding, and an additional magnetic core effectively coupled with the D.C. winding only, as described in the parent Specification, comprises three laminated shell type cones 1, 2 and 3 (Fig. 3) the additional core 3 being linked with the D.C. winding 7 but not with the two oppositelyconnected A.C. coils 5, 6. In a further embodiment there is a suppression coil 8, on the limb 4 of core 3, and connected in series addition to the D.C. winding 7. The cores may be formed from E, I, T or U shaped laminations or they may be " gate-leg " type. The purpose of the additional core is to increase the impedance of the D.C. winding to alternating currents of even harmonic frequency and the provision of the suppression coil further increases this impedance.
Patent GB-973791-A (GB)
Title: Improvements in or relating to apparatus for disseminating solids in liquids
IPC: B01F15/00
Filed: 1963-08-07
Abstract: 973,791. Disintegrating apparatus; agitating fluids. R. W. NORRIS. Aug. 7, 1963, No. 31227/63. Headings BIC and B2A. In apparatus for disseminating solids in liquids, e.g. disintegrating and dispersing agglomerates of an insoluble material, dissolving a solid in a liquid, speeding up chemical reactions, which comprises a chamber 10 containing a rotatable impeller 12, the impeller has a planar area 15 from which extend a plurality of spaced ridges 17 each of which becomes progressively wider as it approaches the outer edge of the impeller, the ridges forming therebetween a plurality of grooves 18 which lie on the same plane as the area 15, each of the grooves becoming progressively narrower as it aproaches the outer edge of the impeller. The outer edge of the impeller may be serrated, as shown, or smooth. The planar area on the top and bottom faces of the impeller are preferably parallel but may be convergent to or divergent from one another. Examples are described.