baber/WOPTO huggingface dataset:
Patent GB-987293-A (GB)
Title: Electrical communication apparatus
IPC: H04L12/403
Filed: 1962-06-04
Abstract: 987,293. Electric selective signalling systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 4,1962 [June 30, 1961], No. 21388/62. Heading G4H. In a communication system for transferring data between a plurality of terminal units T1, T2, . . . T9, Fig. 10, to a data processing centre DPC via a plurality of addressable multiplexing communication units M1, M2, M3, referred to as "Mulcoms", the mulcoms are activated sequentially to cycliacally scan their associated terminal units and the activation sequence for the mulcoms is determined by addresses stored within the mulcoms, each mulcom storing the address of the next mulcom in the sequence. Thus after a mulcom has completed a scan of its associated terminal units it issues an instruction containing the address of the next mulcom in the sequence to cause it to respond. If for any reason a mulcom instructed in this way to respond does not do so the data processing centre has facilities for modifying the next mulcom address stored in the mulcom that has just responded so that in subsequent sequences the mulcom that did not respond is bypassed. The mulcom sequence is arranged as an open sequence, that if, for example the sequence is M1, M2, M3, then after M3 has responded control reverts automatically to the data processing centre which will normally initiate a further sequence by activating mulcom M1 However, the data processing centre can initiate a further sequence from some intermediate point in the sequence. Thus, if mulcom M1 is not very busy, the data processing centre can initiate a sequence starting at mulcom M2. When a mulcom is activated it scans all its terminal units cyclically stopping only at those which indicate that they have data they wish to transmit to the data processing centre. Every message from a terminal unit to the data processing station includes the address of the terminal unit and the address of the associated mulcom. While one mulcom is activated the other mulcoms are listening to the line waiting for their instructions to go ahead. In a modification the terminal units associated with anv one mulcom can themselves determine the sequence in which they are scanned in a similar way to the way in which the mulcom activating sequence is determined. Specifications 816,828, 987,219 and 987,292 are referred to.
Patent GB-950826-A (GB)
Title: Cyanuric acid production
Inventor: REED RONALD ARTHUR
Filed: 1959-06-24
Abstract: Cyanuric acid is produced by heating a solution of urea and/or biuret in sulpholane and/or an alkyl-substituted sulpholane which is stable at the temperature the process is carried out, preferably 2:4-dimethyl sulpholane, and recovering the cyanuric acid formed. The solution is preferably heated to above 180 DEG  C., and preferably contains an excess of the sulpholane by weight.  The cyanuric acid, which is deposited as a solid, may be recovered by filtration, washed with alcohol and ether, dissolved in sodium hydroxide and then reprecipitated by hydrochloric acid.
Patent GB-717387-A (GB)
Title: Printing and dyeing polyvinyl butyral materials
IPC: D06P5/00
Filed: 1952-08-28
Abstract: A printing ink for printing on polyvinyl butyral sheet material comprises a polyvinyl butyral resin, an alcohol, ketone, chlorinated hydrocarbon or aromatic hydrocarbon solvent therefor, and a light-stable dyestuff soluble in a ketone or chlorinated hydrocarbon, containing from 2-4 cyclic nuclei in the molecule, the ink having a viscosity of from 10 to 500 centipoises. Specified solvents are cyclohexanone, solvent naphthas, ethanol and n-butanol.  Specified dyestuffs are substituted anthraquinone dyes such as Ero blue and cobalt blue, Kohnstamm orange, oil orange, and calco-oil yellow.  A plasticizer such as triethyleneglycol di(2-ethyl butyrate), dibutyl sebacate and di(b -butoxyethyl) phthalate may also be present.
Patent GB-121960-A (GB)
Title: Improved Typewriter Key Action.
IPC: B41J7/02
Filed: 1918-12-24
Abstract: 121,960. Nordiske Skrivemaskinefabrikker Aktieselskab, (Assignees of Lindberg, S.). Nov. 15, 1917, [Convention date]. Type-lever actions. -In actions in which the key-lever 14 is connected to the typelever 19 by a drawlink 17, the parts are returned by a floating spring 24 connected at the ends 25, 26 to the draw-link and the type-lever, the end 25 being arranged near the pivot 18 in order to render small the extension of the spring. The Specification as open to inspection under Sect. 91 (3) (a) describes also an arrangement in which the end 26 of the spring 24 is connected to the draw-link, and the end 25 is connected to the type-lever at a point near the pivot 18. This subject-matter does not appear in the Specification as accepted.
Patent GB-517230-A (GB)
Title: Improvements in metal clad electric switchgear having isolating elements
IPC: H01H31/32
Filed: 1938-07-22
Abstract: 517,230. Switchgear structure; heavy-current switches. BRITISH THOMSON-HOUSTON CO., Ltd., and REGIS. E. D. July 22, 1938, No. 21811. [Class 38 (v)] A disconnecting or isolating device in or for metalclad switchgear, comprises a metal rod 1. having contacts 2 at each end, and surrounded by an impregnated tube 3 of fibrous material, which is embraced by an insulating member 8 carrying an earthed metal casing 7 in which are slidably supported the insulating tubes 6. The end conductors 4, 5 are adjustably carried in the tubes 6 by three or more bowed springs 11, and restrained against endwise movement by pins 12. The tubes 6 also carry racks engaged by spur wheels 3 for simultaneously moving them towards or away from the co-operating contacts 10, the Fig. showing, however, the lefthand tube in connecting, and the right-hand tube in isolating, position. Swinging links may engage pins on the end conductors for operating them. The secondary of a current transformer may be located directly on the insulation 3, the casing 7 being divided to allow it to be mounted in place. The operating mechanism is at earth potential, and for adequately insulating it from live parts, the end conductors may be formed by metal inner surfaces of tubular insulating elements. In the telescoped position, earthed metal shutters may be provided at the ends, whereby the device is completely enclosed in an earthed casing. The end conductors may alternatively slide within the intermediate conductor.
Patent GB-189101-A (GB)
Title: Improvements in or relating to means for regulating engine speeds
IPC: G05D13/00
Filed: 1922-10-13
Abstract: 189,101. Soc. Rateau. Nov. 12, 1921, [Convention date]. Closure members, piston. - An unbalanced steam throttle-valve forming part of a governing device for turbines or other engines comprises a piston D more or less closing ports B through which the steam passes.
Patent GB-127786-A (GB)
Title: Post Card with Supplementary Leaf.
Inventor: CHOLODENKO MICHAEL
IPC: B42D15/08
Filed: 1918-12-31
Abstract: 127,786. Cholodenko, M. Dec. 31,1918. Post cards.-A post card is provided with an additional leaf and bears advertisements so arranged that the purchaser cannot avoid reading them. The space a is reserved for the address of the addressee, and the space b for the address of the addressor. The communication is written on the face e, whilst the remaining sides c, f of the leaves bear advertisements.
Patent GB-511395-A (GB)
Title: Improvements in or relating to lift increasing devices for air-craft
IPC: B64C23/02
Filed: 1938-07-25
Abstract: 511,395. Aircraft lift increasing devices. NUGENT, J. July 25, 1938. No. 21977. Drawings to Specification. [Class 4] Lift-increasing devices for aircraft include a roller which may be provided with vanes, disposed forwardly of the leading edges of the wings and provided with means whereby its position may be adjusted. As . shown, the roller may be driven and the brackets carrying the roller are pivoted to the wing.
Patent GB-251503-A (GB)
Title: Control of polyphase crane-driving or like motors
IPC: B66C13/26
Filed: 1925-09-03
Abstract: 251,503. Kirkland, J. W., (Allgemeine Elektricitats-Ges.). Sept. 3, 1925. Electric and magnetic; actuated or applied by speed regulators.-A polyphase motor for driving a crane or the like is provided with a brake release magnet 27 which is energized during normal running, and is de-energized automatically when the speed is sufficiently reduced provided that the controller is in one of its braking positions. The effect, is obtained by connecting a responsive coil 37 across the terminals of the rotor windings 15 so as to close contacts 38, 39 while the speed is above a. certain value; below this value the, contacts open a control circuit extending from an electromagnetic switch coil 29 to a controller contact finger 39<1> which is in action at the braking position 1 - - 4. The electromagnetic switch de-energizes the magnet 27 and thus applies the brake.
Patent GB-485718-A (GB)
Title: Improvements relating to a composite metallic article and method of making same
IPC: B22D19/00
Filed: 1937-08-10
Abstract: 485,718. Casting composite articles. TRIGGS, W. W. (Antaciron, Inc.) Aug. 10, 1937, No. 22034. [Class 83 (i)] In casting a metallic envelope onto a core 10 having a different coefficient of expansion this is provided with longitudinal slits 13 which may be filled with asbestos or other packing. The core may also have longitudinal and circumferential grooves 19, 14 which form projections 15 to be engaged by the cast metal and adjacent the end of the slits 13 and of the cast envelope the core may have a groove 17 filled with compressible heat-resistant packing. The method is suitable for casting silicon iron about a core of cold-rolled steel in making an impeller for an acid pump.
Patent GB-895574-A (GB)
Title: The silencing of jet aircraft on the ground
Inventor: LEASON DENNIS BRIGHAM
IPC: B64F1/26
Filed: 1957-07-11
Abstract: 895,574. Screens for intercepting heat. FAIREY CO. Ltd. July 8, 1958 [July 11, 1957], No. 22046/57. Class 51 (2). [Also in Group XXVII] A jet deflector for silencing the jet noise of an aircraft on the ground comprises a straightthrough tube 10, carried by a wheeled support 25, receiving the horizontal jet and discharging it upwardly through an outlet 11. The silencer is mounted on a wheeled trolley 25 which may be lifted off its wheels and adjusted to the height of the jet outlet by screw jacks 28. The inlet end of the silencer may be flared at 13 and the jet engine nozzle 20 is fitted into an aperture in a plate 17 spaced from the end-plate 16 so that air may be drawn into the silencing chamber. The joint between the pipe portions 10, 11, is formed by a ring 12 carrying adjustable deflector plates 30. According to the Provisional Specification the pipe 10 may be made larger than the nozzle 20 and provided with an internal liner, the annular space around which forms an air intake to assist in cooling the exhaust.
Patent GB-239529-A (GB)
IPC: F01L7/04
Filed: 1924-12-15
Abstract: 239,529. Gribojedoff, N. von. Dec. 15, 1923, [Convention date]. Valves.-In an engine comprising a ported cylinder rotated about its axis within a fixed annular valve member as described in Specifications 184,217 and 226,236, the inner surface of the valve member is formed with one or more grooves or ribs for improving the packing between the valve and the cylinder. Fig. 1 shows the cylinder 7 rotated by gearing 9 and provided with ports 37, 38 each serving for both inlet and exhaust by co-operation with a fixed valve ring 29 provided with inlet ports 33, 34 and exhaust ports 35, 36, the former being situated above horizontal partitions 32 on the valve ring and thereby separated from the latter, which are arranged below other horizontal partitions 31 on the valve ring. For the purpose of this invention, the ring 29 mav be provided with a rib 42 taking into a recess in the cylinder 7, or with horizontal grooves arranged around its inner surface above and below the ports. Corresponding grooves may be formed in the outer face of the cylinder, and an elastic packing-ring may be arranged in each pair of grooves. In another form, a series of ribs on the valve ring engage corresponding grooves in the cylinder. The valve ring may be formed in halves, and each half may be formed integral with half the engine casing as a single stamping as described in Specification 226,236.
Patent GB-785953-A (GB)
Title: An improved rest head for vehicles
IPC: A47C7/38
Filed: 1955-08-03
Abstract: 785,953. Head rests. ARNAU, F. Aug. 3, 1955, No. 22242/55. Classes 52(2) and 52(5) A head rest for the driver of a motor vehicle comprises an upholstered head piece 21 supported on an adjustable arm attached to a part of the vehicle body independent of the seat. The arm consists in five tubular parts, 3, 8, 10. 12 and 16, the parts 3 and 8 sliding telescopically within the limits of a slot 6a and being clamped together by a thumbscrew 7, the parts 10 and 12 are connected by a spring 11, and the parts 8 and 10, and 12 and 16 are joined together by ratchet joints set at right angles to each other. A sleeve 19, carrying the freely rotatable head piece 21 is fitted to the tubular part 16 and is adjustable about the longitudinal axis of the tube. The arm is fitted to a bush or socket 1, sunk into a pillar of the car body, by a spring catch 2 engaging either of two slots in the bush and released by depressing the pin 6.
Patent GB-239854-A (GB)
Title: Improvements in antennae systems
IPC: H01Q11/02
Filed: 1925-09-07
Abstract: 239,854. Soc. Franþaise Radio-Electrique. Sept. 10, 1924, [Convention date]. Aerials; directive signalling. - A transmitting aerial is constructed of two vertical wires divided at intervals by cylindrical condensers formed of concentric tubes, as shown in Fig. 3. This is stated to possess a radiation characteristic of the shape shown in Fig. 1, having a greater horizontal but less vertical spread than the distribution from an ordinary vertical aerial shown in Fig. 2. The radiation of Fig. 1 is uniform and nondirectional, and has a greater range, for a given input power, than that of Fig. 2. By forming the aerial line, Fig. 3, into a closed circuit or loop, with the ascending and descending conductors separated by approximately half a wavelength, the radiation becomes horizontally directional in the plane of the loop.
Patent GB-286162-A (GB)
Title: Improvements in ironing and pressing machines
IPC: D06F69/04
Filed: 1927-08-26
Abstract: 286,162. Naamlooze Vennootschap Machinefabriek Reineveld. Aug. 26, 1927. Addition to 285,448. Ironing-machines with reciprocating irons; ironing-machines with hand-operated irons.-In the ironing-machine described in the parent Specification, in which the iron 1 is suspended from a carriage 2 which can be moved manually in its supporting-member 3 transversely of the work-table 4, and in which the supporting-member is longitudinally reciprocated along tracks 8, 12 in a guide-member 5 by the engagement of a motor-driven friction wheel 14 with the outer surface of the lower track, the motor 13 being carried on the supporting-member, the direction of movement of the supporting-member is determined by the movement on to a pulley 19 fast on a shaft 20 geared to the shaft of the gear-wheel 14, of one or other of the open and crossed belts 15, 16 driven by the motor. The belt-shifter arm is controlled from a handle 36 carried by the iron, springs restoring both belts to the idle pulleys 18 on release of the handle. Cams on the stationary frame may be provided tc cooperate with trip mechanism to effect the beltshifting operation automatically at the ends of the travel of the supporting-member.
Patent GB-278859-A (GB)
Title: Improvements in or relating to valves of the piston type
IPC: F16K3/26
Filed: 1926-09-11
Abstract: 278,859. Blakeborough, R. A., Broadhead, J. B., Wood, T., and Mosby, S. W. Sept. 11, 1926. Piston and tubular valves. - A piston member f having a. hollow end f <2> with radial ports f<3> passes through an annular ring d having annular passages d<1>, d<2>, connected by ports d<3>. The ring has compressible packing members c, e, at the ends and the ports d<1>, d<3> communicate with an outlet outlet passage a<2> in the valve body a. A gland member g into which the piston rod is screwed is adjustable to compress the packings c, e. When the valve is closed a collar j on the piston exerts an additional compression force on the packings, the inlet passage a' is blanked off by the end of the piston, and the radial passages f<3> are below the lower packing c. When the valve is open the passages d', d<3>, f<3>, register and the lower packing c is covered by the bottom portion of the valve f and is thus out of contact with the -controlled fluid.
Patent GB-1390211-A (GB)
Title: Process for desulphurizing hot gases
IPC: C10K1/12
Filed: 1972-05-12
Abstract: 1390211 Purifying gases METALLGESELLSCHAFT AG 12 May 1972 [4 June 1971] 22506/72 Heading C5E  A gas 30, containing hydrogen sulphide, is desulphurized by scrubbing in a packed or plate column 3 with an aqueous solution of potassium carbonate which is at or near its atmospheric-pressure boiling point, 0À2-2À0 cubic metres of solution per standard cubic metre of hydrogen sulphide in the gas are used, the laden solution is regenerated by pressure relief, heating and stripping with steam. A gas 19, which can be a hydrogen/carbon monoxide mixture produced by reacting coal or residual oil with oxygen and steam, is cooled to 150-200‹ C. in a waste-heat boiler or by direct contact with water, and further cooled in an indirect pressure cooler 1, in the reboiler 6 and then at 7. Condensate 25 is removed from the cooled gas which is warmed by direct contact at 5 with a hot solution of sodium carbonate. The used adsorbent solution 33 is regenerated in the tower 2 in which stripping is carried out with steam from the reboiler 6. The stripped gases are cooled at 9 and the exhaust gas 38 used in the Claus process. The scrubbing solution 35 can contain potassium bicarbonate and borax in addition to the potassium carbonate and can enter the tower 3 at 107‹ C. whilst the gas 30 to be scrubbed enters the tower at 105‹ C. The scrubbed gas 31 can be heated at 4 by direct contact with water from the indirect cooler 1 and supplied to a gas turbine.
Patent GB-1509913-A (GB)
Title: Electrical circuit arrangements for converting an input signal of variable frequency to a signal of predetermined mean frequency
IPC: G01R23/14
Filed: 1974-05-21
Abstract: 1509913 Measuring AM and FM RACAL INSTRUMENTS Ltd 2 April 1975 [21 May 1974] 22510/74 Heading G1U [Also in Division H3] A modulation measurement circuit arrangement for measuring the degree of amplitude or frequency modulation of a modulated input signal comprises a circuit 8-28 for receiving the input signal 5 or 6 and producing therefrom an intermediate signal 14 having a controlled and predetermined mean frequency, (see Division H3) means 62 responsive to the intermediate signal and to a reference level 78 to control the mean level of the intermediate signal to be substantially constant at a predetermined value, and means 102 operative to measure the instantaneous amplitude or frequency variations of the controlled intermediate signal due to the modulation to be measured. A switch 92 selects the input of AM or FM detectors 74 or 84 for application to the measuring means 102, which includes a range selector 108, a meter 117 and an inverter 104 so that AM trough or peak values and FM positive or negative deviation may be measured.
Patent GB-645471-A (GB)
Title: Improvements in or relating to let-off motions for looms for weaving
IPC: D03D49/08
Filed: 1944-11-15
Abstract: 645,471. Let-off motions for looms. GARDNER, H. Nov. 15, 1944, No. 22523. [Class 142(ii)] Equal friction is applied to the two ruffles of a warp beam by a spring 20 acting through an equalizing member 10, the spring load being finely adjustable during weaving by a nut 21 and quickly releasable by lifting cam levers 24, pivoted at 25, thereby allowing collars 14, 18 to close together and free the spring from stress. Reference has been directed to the Comptroller to Specification 229,810, [Class 142 (ii)]
Patent GB-784553-A (GB)
Title: Improvements in or relating to methods of and means for obtaining raw rubber from latex
IPC: C08C1/14
Filed: 1955-08-05
Abstract: 784,553. Mixing-machines. SOC. DES. CAOUTCHOUCS D'EXTREME ORIENT. Aug. 5, 1955 [Nov..30, 1954, June 21, 1955], No. 22570/55. Class 86 [Also in Group V] In apparatus for obtaining raw rubber from latex (see Group V) a predetermined amount of acid is added to each of a pair of mixing vats by tilting about its trunnion mounting 21 a container 15 extending throughout the length of the vat. Each vat contains a stirrer 16 comprising pairs of oppositely directed blades, each pair being inclined at right angles to the adjacent pairs. The stirrer may be rotated at about 130 r.p.m. After stirring the vats 1 are tilted about trunnion mountings 18 to pour the acid latex mixture through a spout 17 into coagulating shoots 2, the spout remaining in substantially the same horizontal plane as such tilting to avoid the formation of eddies in the shoots. Each vat 1 has a heating jacket 12 for the passage of a hot liquid.
Patent GB-352752-A (GB)
Title: Improvements in or relating to arrangements for determining the transmission characteristics of electrical apparatus, circuits or transmission lines
IPC: H04B3/46
Filed: 1930-07-26
Abstract: 352,752. Telephone and like transmission measurements. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, Liverpool, and TURNEY, T. H., Beracah, Aughton Park, Lancashire. July 26, 1930, No. 22596. [Class 37.] An arrangement for determining the transmission characteristics of electrical apparatus, circuits, or transmission lines includes an adjustable network adapted to vary the phase without changing the impedance, so as to obtain a null indication. A source S<1> is connected through high resistances R<1>, R<2> to the primary winding of a transformer XF<1> having two secondary windings a, b in which equal voltages are generated. The secondary winding a is connected through the actual line &c. under test to the primary winding of a transformer XF<2>, and the secondary winding b is connected through a " loss pad " LP and a phase-shifting network PH to the primary winding of a transformer XF<3>. The secondary winding of the transformers XF<2>, XF3 are connected as shown to resistances W, amplifier A, and telephone receiver R. The phase-shifting network PH comprises a lattice of inductances and capacities arranged to be simultaneously varied so as to vary the phase shift while maintaining the impedance constant. The coils should have low loss and the condensers should be shunted by resistances of such value as to make the powerfactor of the combination equal to that of the coils. The impedance of the apparatus to be tested is balanced by varying the resistances forming the "loss pad " LP and the phase-shift network PH is adjusted until no sound is heard in the receiver R. The apparatus may be modified for use with constant current instead of constant voltage.