baber/WOPTO huggingface dataset:
Patent GB-1462627-A (GB)
Title: Load energisation control
IPC: G05F5/00
Filed: 1973-07-26
Abstract: 1462627 Automatic regulation of power FERRANTI Ltd 25 July 1974 [26 July 1973] 35742/73 Heading G3X A system for controlling the power consumed by a load includes an arrangement for producing a control signal when the amount of energy  supplied reaches a predetermined level. The control signal terminates the application of the supply to the load. As shown, a filament lamp 10 in series with a switching transistor 13 is connected to a supply terminal 12. The supply voltage is fed to a function generator circuit 17 which produces an output approximating the square of the value of the supply voltage and which may comprise a network of resistors and Zener diodes, Figs. 3 and 4 (not shown). The squared voltage signal is fed to an integrator circuit 18 connected to one input of a differential amplifier 22 which changes its output level when the integrator output reaches a reference level set by a potentiometer 23. At this point, the transistor 13 is turned off and is only energized again when a pulse from a clock source 15 closes a switch 21 so as to begin a new integrating cycle. The system operates to maintain a constant lamp brightness. The function generator 17 may include an additional Zener diode which breaks down and causes transistor 13 to turn off if high voltage transients appear at terminal 12. The system may be used to control the brightness of an array of lamps in a display by a multiplexing procedure, Fig. 2 (not shown).
Patent GB-1072127-A (GB)
Title: Pipe joints
Inventor: HVIDT HANS HENRIK
IPC: F16L21/025
Filed: 1964-09-01
Abstract: 1,072,127. Joint-making packing; pipe joints. DE FORENEDE GUMMI-OG LUFTRINGEFABRIXER A.S. SCHIONNING & ARVE. Sept. 1, 1964 [Sept. 3. 1963] No. 35749/64. Headings F2B and F2G. A pipe joint sealing ring (6) is made of elastic material and has, in its free state, a polygonal cross-section with one or more concave sides (10, 11). The ring is elastically mounted on a spigot portion (1) of one pipe and, when the latter is introduced into a bell portion (2) of the other pipe, the ring rolls on and is compressed into a substantially rectangular or trapezoidal form between the pipe sealing surfaces (3, 4, Fig. 2). The cross-section of the ring may be irregularly polygonal (Fig. 7) and is preferably penta-, hexa-, hepta- or octagonal.
Patent GB-1114407-A (GB)
Title: Separating ammonia from the recycle gas in the synthesis of ammonia
Inventor: KOELSCH WALTER
IPC: C01C1/12
Filed: 1965-08-20
Abstract: In a process for separating NH3 from recycle gas in the synthesis of NH3, part of the recycle gas is withdrawn as residual gas, which after being dried and freed from NH3, is expanded in at least one stage with the performance of external work, and after the cooling which is thus effected is brought into heat exchange with at least a portion of precooled recycle gas, an amount of NH3 thereby being separated in liquid phase from the recycle gas.  The expanded residual gas may also be brought into heat exchange with the residual gas which is still under the synthesis pressure so that this is cooled to not lower than 0 DEG  C., preferably to 2 DEG  C., immediately prior to being dried.  The residual recycle gas or the whole of the recycle gas prior to the separation of NH3 may be cooled partly with the whole of the NH3-free recycle gas, partly with the whole of the liquid NH3 separated and also in a vaporization cooler, which step may precede or follow the heat exchange with the expanded residual gas.
Patent GB-1064726-A (GB)
Title: Improvements in or relating to manufacturing metallic images on aluminium and aluminium alloys
IPC: G03C5/58
Filed: 1963-09-12
Abstract: 1,064,726. Metallic and dye photographic images on aluminium and aluminium alloys. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Sept. 12, 1963 [Sept.14, 1962], No.35943/63. Heading G2C. Internal and/or external metallic images are made by exposing an aluminium or aluminium alloy carrier having its surface oxidized to form a porous oxide layer separated from the metal of the carrier by a non-porous intermediate layer, the porous layer being sensitized with a photosensitive compound whose light-reaction product will deposit metallic mercury from mercurous ions, treating the exposed carrier with a nuclearintroduction bath comprising a solution containing mercurous ions with or without silver ions to form a latent mercury or silver amalgam nuclear image, and intensifying the latent image with metal, e.g. silver, copper, nickel, cobalt or nickel and cobalt, by treatment with a solution of a salt of such a metal and a reducing agent for said salt. Internal dye images may be obtained by intensifying the latent image using a silver physical developer containing a colour coupler and a phenylene diamine colour developer followed by removal of the metallic image. A mercuric ion adsorption effect which may occur during the nuclear-introduction step and cause fogging is prevented or suppressed by (i) adjusting the concentration of the mercuric ions in the nuclearintroduction bath up to a value of at least 10<-4> molar, (ii) treating the porous oxide layer before sensitization with a solution of a mercuric compound or (iii) adding an organic hydroxy acid e. g. citric, tartaric, glycollic, glyceric or malic acid to the nuclear-introduction bath or (iv) otherwise treating the latent nuclear image prior to intensification with a solution of such an acid. When a dye image is to be formed the latent nuclear image may be treated with a citric acid or glycollic acid solution to prevent colour fog. The intensification step may be conducted by the method described in Specification 1, 64, 725. Oxidation methods for forming the porous and non-porous layers on the carrier are described and photo-sensitive compounds specified for use in the process are aromatic diazosulphonates such as sodium o-methoxybenzene diazosulphonate, aromatic diazocyanides, o-hydroxybenzene or -naphthalene diazonium compounds, o- or p-nitro-mandelonitrile, the bisulphite compounds of o- and p-nitrobenzaldehyde and inorganic metal complex compounds liberating CN<->, CNS<->, NO<->2, SO3<=>, S2O3<=>, NH3, pyridine or derivatives thereof or thiourea or derivatives thereof.
Patent GB-453929-A (GB)
Title: Improvements in and relating to electric heating pads or the like
IPC: H05B3/34
Filed: 1934-12-15
Abstract: 453,929. Electrically - heated pads and bandages. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 15, 1934, No. 36037. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 24, 1935]. Drawings to Specification. [Class 39 (iii)] Electrically-heated pads or bandages comprise resistance wires insulated with polymerization products of acrylic acid, or its esters, vinyl compounds or their esters, or derivatives or homologues of these substances, with or without fillers such as talc or lampblack, or softeners. The wires, for example nickel-chromium wire, may be covered with spun, braided, or felted asbestos, and may be laid between two sheets of a polymer secured together by moistening with a solvent such as acetone. Alternatively the wires, before sewing to heating pad material, may be threaded through tubes of the insulating material and the junctions thereof, together with thermostatic switches if provided, may be wound with strips of the material moistened with acetone or the like. A metal foil or sprayed metal coating connected to an earthed lead may be provided on the insulating material.
Patent GB-512416-A (GB)
Title: A deformable panel for use in moulding
IPC: E04G11/06
Filed: 1937-12-30
Abstract: 512,416. Shuttering panels. GREGOIRE, F. E. Dec. 30, 1937, No. 36079. [Class 20 (ii)] [Also in Group XXII] A deformable panel for use as shuttering in moulding concrete &c. or for moulding foundry sand comprises rigid members placed side by side and connected by a longitudinally extensible elastic cord or spring which permits them to make relative movement. As shown in Fig. 1, the rigid members comprise metal strips 1 provided with ribs pierced with holes through which is threaded a rubber cord 2. The panel may be deformed to any desired shape by rigid rods 3 also passing through holes in the ribs. In a modification, Fig. 4, the members 1 are formed of wooden blocks which are connected by helical springs 2. In this construction the rods 3 may pass through the centre of the springs 2 and the holes 4 in the members 1 are widened out at their ends to facilitate movement. A layer of flexible material such as paper may be used to cover the joints between the members 1.
Patent GB-1067653-A (GB)
Title: Electrostatic copying machine
IPC: G03G15/06
Filed: 1964-09-04
Abstract: 1,067,653. Electrophotographic apparatus. ADDRESSOGRAPH-MULTIGRAPH CORPORATION, CHARLES BRUNING DIVISION. Sept. 4, 1964 [Sept. 5, 1963], No.36294/64. Heading G2H. The leading edge of a sheet emerging from a developing station 14 is blown upwardly into the nip of rollers 38, 40 which deliver it to rollers 34, 36 for transfer to the conveyer of a fixing oven 16. Rollers 22, 24, 38, 40 and 34, 36 are preferably covered with nap material to avoid smearing the loose powder image. Motor 54 drives fan 52 so that it delivers an upwardly directed air stream through orifice 56. Alternative forms having multiple discharge outlets Figs. 3 and 4 (not shown) are described. A paper sheet having a zinc oxide photo-conductive resin bonded layer bearing an electrostatic latent image is developed by contact with a rotating magnetic roller brush 20, loaded with synthetic thermoplastic toner powder. After fixing by fusion, the sheet emerges image side up from oven 16.
Patent GB-942451-A (GB)
Title: Improvements in surge diverters or lightning arresters
Inventor: DANNENBERG KURT
IPC: H01C7/102
Filed: 1959-10-27
Abstract: 942,451. Protective arrangements. E.M.P. ELECTRIC Ltd. Oct. 25, 1960 [Oct. 27, 1959], No. 36371/59. Heading H2H. [Also in Division H1] A cylindrical non-linear resistor is provided with an anti-tracking, puncture-resistant coating of a pliable synthetic resin composition so as to enable it to withstand a surge current density which exceeds 3500 amps. per square inch. An initial coating of low temperature aluminous frit may be applied before the resistor is coated with epoxy, silicone or polyester resin and a specified plasticizer. A plurality of such resistors may be connected in series with spark gaps to form a lightning arrestor or surge diverter.
Patent GB-1393609-A (GB)
Title: Air depolarized cells
IPC: H01M12/06
Filed: 1972-08-03
Abstract: 1393609 Metal-air cells COMPAGNIE INDUSTRIELLE DES PILES ELECTRIQUES 3 Aug 1972 [5 Aug 1971] 36383/72 Heading H1B An air depolarized cell comprises a porous hydrophobic carbon position electrode 1, an electrolyte-impregnated separator layer 8, and a porous zinc negative electrode 2 including chambers 12 from which gases produced in the cell pass via ducts 31 and valves 32 to a chamber 14 and thence via ducts 15 to the porous carbon electrode and the exterior of the cell. Envelopes 9, 10 surrounding the central opening 3 are gas permeable to permit air entering via holes 21, 24 to reach the carbon electrode and between the latter and separator 8 are fine and coarse metal gauze layers 6, 7 respectively. The gauze may include non-conductive electrolytefixing filaments to keep the carbon surface moist. Chambers 12 have electrolyte-impermeable gaspermeable walls 11, e.g. of or including crosslinked polyethylene or polypropylene. The assembly is centred within metal sleeve 18 and insulating housing 20 by insulating end plates 13, 16 having annular beads 22, 17 penetrating the carbon, the plates being supported on rings 25. End cap 4 is electrically connected to gauze layer 7 to provide the positive terminal, and base 5 is electrically connected to sleeve 18 to provide the negative terminal. Sleeve 18 may be zinc or zinc-coated steel and the zinc may be passivated to diminish corrosion. Rings 27 and 30 are of yieldable material to accommodate increase in volume of the negative material on discharge, ring 27 being gas-permeable, e.g. porous neoprene held in by discs 28, 29 to permit gases to reach duct 31. Walls 11 of the chambers 12 may also act to accommodate the said increase in volume, preferably functioning only towards the end of discharge. Rings 27 and 30 may also store electrolyte. The valve may comprise a layer of foam rubber mixed with paraffin or foam rubber with a slit therein. Any electrolyte escaping into central opening 3 may be taken up by a fixing substance provided therein, which substance may further exhibit a colour change to indicate leakage.
Patent GB-886348-A (GB)
Title: Improvements in or relating to thermal circuit breakers
IPC: H01H71/16
Filed: 1958-11-12
Abstract: 886,348. Electrically released switches. TELEMECANIQUE ELECTRIQUE. Nov. 12, 1958 [Nov. 21, 1957; July 3, 1958], No. 36385/58. Class 38 (5). A thermally-operated circuit-breaker comprises two resiliently-mounted contacts 9a, 12a held in contact by a movable projection 25 on a bimetal strip 27 on a shaft 26, the movement of which is controlled by a further bimetal 28 carrying the current to be controlled. The contact 12a is pivoted on a pin 13 of an insulating member 14 mounted on a resilient strip 15 so that by deforming the strip by a cam surface 18b on an adjusting knob, the overlap of the contact and projection 25 (and thus the operating point of the breaker) can be varied. Both contacts are arrested during opening by a rod 20 and flange 24 and are movable together by the rod in resetting. A reset button 21 is provided. A modified construction in which the two contacts are pivoted direct to the strip 15 and separated by a helical spring is also disclosed. Figs. 4-7 (not shown).
Patent GB-828058-A (GB)
Title: Slidable signal for visible index equipment
IPC: G09F7/00
Filed: 1957-11-22
Abstract: 828,058. Indicators. ACME VISIBLE RECORDS Inc. Nov. 22, 1957 [Jan. 24, 1957], No. 36436/57. Class 118 (1). A slidable index signal for the index strip claimed in Specification 828,057 comprises an extruded strip with flanges 18 fitting on an index strip and further flanges 26 against which a card &c. can lodge so that it is pressed up to the bowed face. Specification 822,559 also is referred to.
Patent GB-1197614-A (GB)
Title: Improvements in or relating to Rotors for Grinding or Pulping.
Inventor: SERGENT RAYMOND HENRI ROBERT
IPC: B02C13/28
Filed: 1967-08-08
Abstract: 1,197,614. Comminuting appartus; mixing apparatus. R. H. R. SERGENT. 8 Aug., 1967 [10 Aug., 1966], No. 36439/67. Headings B2A and B1C. A blade or vane 1, Fig. 2, of a mixer or grinder is coupled to a shaft 3 and driving arm 2 by pivots 4, 6 and a transmission arm 5. Each blade or vane can swing relative to the shaft in the plane of rotation and maintains its position during part of a revolution of the shaft without slowing down of the shaft at the instant of impact with material to be sliced, crushed or penetrated.
Patent GB-988732-A (GB)
Title: Improvements in or relating to compressed-air starters
IPC: F02N7/08
Filed: 1962-09-26
Abstract: 988,732. Compressed air starters. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK. Sept. 26, 1962 [Sept. 27, 1961], No.36613/62. Heading F1K. In a compressed air starter comprising a compressed air rotary engine and a pinion 3 carried by a pinion shaft which pinion by axial movement may be brought into or out of engagement with the gear ring of the engine flywheel 24 and which axial movement simultaneously controls the admission of compressed air for the compressed air engine, the shaft of the compressed air engine and the pinion shaft are coupled via an intermediate gearing consisting of a pinion 5 mounted on the engine shaft and the internally toothed gear ring 6 of a cup shaped member 7 arranged on the pinion shaft. As shown the cup 7 forms a compressed air control member.
Patent GB-826717-A (GB)
Title: Machine tool having power-positioning mechanism
IPC: G05B19/23
Filed: 1957-11-26
Abstract: 826,717. Boring and milling machines. NEW BRITAIN MACHINE CO. Nov. 26, 1957 [Dec. 10, 1956], No. 36793/57. Class 83 (3). A machine tool comprises means for stopping an element 17 thereof in a desired position, including a dial member 44 driven in timed relation with the movement of the element and adjustable angularly to an initial position, means for providing a signal once every revolution of the dial, and means for stopping the element after a number of revolutions have been registered by a counting means. In a horizontal boring, drilling and milling machine of conventional form having simultaneously movable spindle-head and back-rest slides C, G, the spindle 17 is movable axially at fast or feed rates by electric motors, the feed motor also rotating the spindle. The feed shaft 40, Fig. 2, is connected by gears 36, 37 to a shaft 29, carrying a hand wheel 26. An annular member 45 is clutched to the shaft 29 through interengaging teeth on the member and a ring 52 fastened to the hand wheel 26, which can be moved axially to disengage the clutch and allow rotational adjustment of the member 45. The member 45 carries a nylon ring 66, through which passes a pin 70 to make contact, once per revolution, with a brush 68. The brush is connected in a valve circuit so that a pulse is produced for each revolution, the pulses being passed to a counter 103 which stops the spindle head at a predetermined count. If the feed distance necessitates an additional partial revolution of the member 45, the member is initially set so that it performs part of a revolution before the first pulse is produced. The number of revolutions is indicated on a dial 90 connected by gearing 92, 97, 91 with the member 45. The dial also carries a dog 100 co-operating with a switch 101 to initiate feed rate of the spindle. A pointer 104 co-operates with graduations on the member 45 and the dial 90 to assist in initial setting. The feed or rapid-traverse rates can be reversed by a solenoid-operated clutch. When this clutch is in a neutral position, a second solenoid-operated clutch can be engaged to provide a fine feed from a gear on the quill. This clutch is disengaged by the counter 103 when it counts out. In a modification, the feed is stopped by stopping a motor. Similar mechanisms may be provided for moving the spindle head C, the saddle E and the table F. Instead of driving the shaft 29 through gearing, it may be rotated by a cable connected to the spindle.
Patent GB-1028902-A (GB)
Title: Improvements in and relating to truss joints
Inventor: TROUTNER ARTHUR L
IPC: E04C3/292
Filed: 1963-09-19
Abstract: 1,028,902. Composite beams. TRUSSDECK CORPORATION. Sept. 19,1963, No. 36853/63. Heading E1V. A truss joint comprises spaced chords 10, 12 (Fig. 2) with longitudinal recesses 16, 18 in their opposed faces intersected by transverse bores such as 28, links 22 in zig-zag relation between the chords 10, 12 with their ends 20 in the recesses 16, 18 and having apertures 34, 24 aligned with the said bores to received pin 26 to fasten the links 22 to the chords 10, 12. Each cord may include a pair of parallel members, a space between them forming the recesses. A pair of channel members 80 (Fig. 5) are arranged back-to-back in the recess at each end of the top chord and have unequallength flanges, the shorter flange 84 being on the top and the longer flange 86 contacting the bottom of the chord to extend beyond the edge thereof for securing to a joist support. The pin 26 comprises a cylinder 72 with a washer 74 at each end, a bolt 76 extending therethrough to secure the washer 74 in position. Load distributing means 30 are associated with the end link 22 in Fig. 2 comprising a right-angled plate with one flange 32 bored to take a pin 26 and the other flange 36 overlying the joist, or underlying it, when it may extend beyond it for securing to a joist support at 38. A bridging link 52 may be connected to a transverse structural member 50, the link 52 comprising a short metal tube flattened at both ends, and fastened at one end 54 to the chord 12 by a pin 26 and at the other end 58 to the member 50. The chord 10 is supported on a wall by a bearing plate thereon with an inner edge notched, the end link 22 sitting in a notch to anchor the joist.
Patent GB-1281821-A (GB)
Title: Improvements relating to methods of and apparatus for measuring output characteristics of a rotary moving part
Inventor: PAGDIN BRIAN COLIN
IPC: G01L3/24
Filed: 1968-08-02
Abstract: 1281821 Selective signalling G K N TRANSMISSIONS Ltd 31 July 1969 [2 Aug 1968] 36905/68 Heading G4H In an arrangement for determining the engine performance and breaking efficiency of a car, or other machine, the wheels of the car, or some rotary part of the machine, are brought into contact with a rotary inertial member, the car engine or brake, or the prime mover of the machine, is operated so as to accelerate or decelerate the rotary inertial member, and pulses produced by the inertial member corresponding to equal increments of rotation are counted in successive equal time periods. Calculations upon the counts in adjacent periods are then performed automatically to determine the required parameters. As described a car, Fig. 2, is positioned with its wheels in contact with pairs of rollers 104. Each pair of rollers carries an inductively sensed toothed wheel 12, Fig. 3, which produces pulses that are counted 29 for successive periods of 0À1 seconds under the control of a master clock 9. At the end of each clock period each count is transferred 30 to a buffer store (31, 33, Fig. 4, not shown) capable of holding two adjacent counts, and while a count is being made calculations, based upon the immediately previous two counts are performed. These calculations, for which formular but no constructional details are given, produce values of speed, torque and brake horsepower. The calculator also provides trigger pulses when speeds of 30 mph and 60 mph are attained, so that a gate 42 can be opened to allow the time taken for this change in speed to be determined by counting 41 clock pulses, as well as indicating the maximum torque and brake horsepower attained in a test cycle. The results of the calculation may be indicated on glow discharge tubes and recorded graphically or on punched paper tape.
Patent GB-346654-A (GB)
Title: Improvements in or relating to wire-rope fabrics for use in conveying belts
IPC: D03D3/00
Filed: 1929-12-02
Abstract: 346,654. Braiding machines. SOKAL, S. 1, Great James Street, Bedford Row, London. - (Stumm - Konzern Ges. ; 30, Jõgerhofstrasse, D³sseldorf, Germany.) Dec. 2, 1929, No. 36913. [Class 74 (i).] A wire rope fabric for use in conveying belts has straight warps around which the wires are bent, the warps 7 passing from a drum 1 through holes &c. in a table 2 to a drum 3, and the weft wire being supplied by a spool 4 which is rotated when unwinding the wire rope and is conveyed by hand in a guiding race 5 in the table in a serpentine course between and around the warp wires 7 whereby these are interwoven with and enclosed on both sides by the weft, which is beaten up by means of levers 6 operated by a pedal 8. The drums 1, 3 are rotated at a speed to give the desired tension and the drum 3 on which the fabric is wound is detachably mounted in its bearings. The warps may have loops or other means at their ends whereby they may be connected together to form an endless fabric.