baber/WOPTO huggingface dataset:
Patent GB-1300135-A (GB)
Title: Method of coating a moving metal strip
Inventor: COSTELLOE PATRICK
IPC: C23D5/00
Filed: 1970-03-03
Abstract: 1300135 Coating with metal powder BRITISH STEEL CORP 19 April 1971 [3 March 1970] 10190/70 Heading C7D A metallic substrate is coated with a metal powder of particle size not exceeding 40 microns, the metal powder including a siliceous substance which facilitates its flow. The metal powder may be Al, Mg, Ni, Zn, Cu, Db, Cu/Zn, Al/Zn, Al/Fe or Zn/Fe. A steel sheet 1 is preliminarily treated by degreasing in sodium orthosilicate 4, pickling in HCl 6, and electroplating with Fe from a FeCl 2  bath 11. The strip 1 is washed at 5, 10 and 12 and dried at 13. At a station 16, sodium or potassium silicate is spread on to one surface 2 of the strip 1. Powdered aluminium as a coatant is spread from a hopper 18 by a vibratory spreader 17 on to the surface 2. The Al powder contains 0À0001% wt of silica particles which have been rendered hydrophobic e.g. with a coating of an organic hydrophobic substance. The reverse side 3 of the strip is similarly coated at stations 22, 23, 24 and the strip dried at 25. Sodium carboxymethylcellulose is dispersed on to both sides 2, 3 of the strip at 26, 27 and the strip again dried at 30 before passing through compression rolls 31, 32 to consolidate the coating. The coated strip is heat-treated at 500‹C for one hour or 350‹C for 15 hours. When coating steel strip with nickel, the strip is electrolytically coated with Ni, and a coating powder of Ni with 0À05% wt SiO 2  employed. The drier 30 heats the strip to 200‹C and heat treatment comprises heating in a reducing atmosphere (95% vol N 2 , 5% vol H 2 ) for 16-20 hours at 700-750‹C.
Patent GB-864616-A (GB)
Title: A process for the production of alkali metal and alkaline earth metal borohydrides
IPC: C01B6/00
Filed: 1957-03-28
Abstract: Alkali or alkaline earth metal borohydrides are prepared by reacting alkali or alkaline earth metals or hydrides with a substituted diborane containing up to 4 hydrocarbon radicals or a substituted borine of general formula BRR21 where R is a carbocyclic radical and R1 are saturated aliphatic or carbocyclic radicals, or H.  Where the substituted borine contains no H, then H2 must be present for reaction, and in any case reaction may be effected in the presence of H2 under pressure.  The mixture may be heated, with, or without, distilling, or filtering off the tri-substituted borine formed with the borohydride, and with a substituted borine the temperature may be 140-220 DEG C., but with a substituted diborane below 140 DEG C.  The reaction may be effected in inert organic liquids, e.g. aliphatic or aromatic hydrocarbons, ethers, or tertiary amines, such as hexane, benzene tetrahydrofuran, or diglycoldimethyl or triglycoltrimethyl-ethers.  If reactants and products are insoluble in the liquid, reaction may be effected with simultaneous comminution, e.g. in a ball mill.  Where ethers are used the borohydride is formed as an etherate, and with tertiary amines the reaction may be under pressure at above 160 DEG C.  The trisubstituted borine may be reconverted into the reactant borine by hydrogenation as described in Specification 854,919.  Colloidal boron may be formed in the reaction and is washed out with solvent.  In examples:- (1) and (3) Na or NaH is reacted with (C2H5)4 B2H2; (2) and (7) K or Ba H2 is reacted with (C2H5)3 B2H3; (5) and (8) Na or CaH2 is reacted with B(C6H5)3 and H2; (6) CaH2 is reacted with (C3H7)4 B2H2.
Patent GB-454571-A (GB)
Title: Improvements in or relating to indicating devices particularly for use with impulse transmitters as used in automatic telephone systems
IPC: H04M1/56
Filed: 1935-04-02
Abstract: 454,571. Impulse transmitters. ASSOCIATED ELECTRIC LABORATORIES, Inc., 1033, West Van Buren Street, Chicago, U.S.A. April 2, 1935, No. 10241. Convention date, April 11, 1934. [Class 40 (iv)] [See also Group XVIII] An indicator device, particularly for indicating the complete number transmitted by successive operations of a number dial, comprises a series of indicating drums 41 frictionally coupled to a common shaft 91 which is rotated forwards and backwards in synchronism with the operations of the dial, a selecting lever 10 cooperating with each drum in turn to prevent it rotating with the shaft in the forward direction and thereby causing it to be displaced on the shaft by an amount indicative of the corresponding digit. The drums 41 are mounted on the shaft 91 between fibre washers 38 and spacing members 39 which are keyed to the shaft by pins 92 entering a slot 68. The shaft carries at one end a gear-wheel 5 having a pawl 64 which engages with a ratchet wheel 8 carried by a yoke-member 40. The drums and washers are brought into frictional engagement by a spring 36 engaging a pin 94 passing through an axial pin 28 and bearing against the outer spacing member 39. The yoke 40 and shaft 91 are coupled by a spring 51 having one end inserted in the slot 68 and the other end fixed to a lug on a plate 49 which is adjustably coupled to the yoke through a pawl 50 with any desired tension of the spring. The shaft 91 is coupled to the number dial through gearing 5, 4, 3, 2, 6, 7 and a link 75 connecting levers 74, 98, the shaft of gear 3 carrying a restoring spring 62 of adjustable tension. The shaft 63 of gear 4 carries a comb-member 29, which normally lies adjacent a fixed combmember 30 and by its displacement at each oscillation of the shaft acts with the comb 30 as an escapement for the selecting lever 10 which engages the combs by a pawl portion 11. In each position the end of the lever 10 engages a pin 72 on the periphery of the appropriate drum to prevent its rotation in the forward direction. At the end of a call the depression of a button 82, Fig. 2, manually or by restoration of the handset, actuates through an arm 78 of a pivoted lever 106 a slide-rod 67, with a lost-motion link 103, which withdraws the pawl 64 from ratchet-wheel 8. Yoke 40 bv engagement with pins 72 then restores the displaced indicating drums to normal position in which they are stopped by the engagement of pins 73 with pins 92. Arm 78 also engages an extension on selecting lever 10 to restore this lever to normal, and acts on a pivoted lever 9 to tilt a further lever 19 engaging at its other end the axial pin 28 which is thereby forced inward to remove the frictional engagement between the drums 41 and the shaft during the restoration of the drums by the yoke.
Patent GB-265426-A (GB)
Title: Improvements in apparatus for manufacturing heels for boots and shoes
IPC: A43D33/00
Filed: 1926-04-20
Abstract: 265,426. Baker, W. April 20, 1926. Heels.-A method of manufacturing heels in which a rand c, Fig. 7, is introduced to render the heel seat lift concave consists in deferring cutting off the ends of the rand until after the building and compressing operations. The rand ends are removed simultaneously with the breasting operation. Gaps or recesses are provided in the heel building and compressing moulds for reception of the ends c.
Patent GB-900013-A (GB)
Title: Improvements in or relating to control switches for electric circuits
IPC: H01H25/06
Filed: 1957-03-29
Abstract: 900,013. Mechanical switches, without quick-action. RORKE, M. June 27, 1958 [March 29, 1957], No. 10305/57. Class 38 (5). A switch, which may be connected in an ignition circuit, comprises an actuating member rotatable into a number of positions in at least one of which is a longitudinallymovable switching finger which is actuated by axial movement of the actuating member. As shown, insulating switching fingers 14 with conducting inserts 42 co-operate with pairs of contact springs connected to conductors 44, selected pairs being connected in series in the circuit. The finger(s) to be operated is selected by rotation of the actuating rod 12 to bring an arm 13 opposite the finger which is moved by depression of the rod. Such movement of the finger normally causes the insert 42 to bridge the springs, but one finger may be arranged to open the circuit on such actuation. The contacts co-operating with this finger are connected in series with contacts 10 which are bridged by a contact 15 on rod 12 to complete a horn circuit if the switch is tampered with by an unauthorized person. Mounted on the rod 12 for rotation therewith is a tube 16 having a helical thread 28 engaged by a projection 27 on a member 26 carrying a boss 31. The latter has a radial projection (not shown), which on clockwise rotation of the rod 12 abuts a stop 34, thereby preventing further rotation of member 26 which is thus moved to the left by the thread 28. This movement causes a flange 37 to pull to the left any fingers 14 which have been left in their right-hand positions. Subsequent clockwise movement of the rod causes rightward movement of the member 26 until the said radial projection clears a stop 34a, whereupon the member 26 is free to rotate. During this rotation of member 26, stop 34 is arranged to be deflected by the radial projection which passes under the stop. A different contact arrangement for the switching finger is described, Fig. 3 (not shown).
Patent GB-113909-A (GB)
Title: Improvements in and relating to Soap Holders & Supports.
Inventor: RAUTZENBERG ERNEST GUSTAVE
IPC: A47K5/02
Filed: 1917-07-18
Abstract: 113,909. Rautzenberg, E. G. July 18. 1917. Soap stands and holders.- A soap or other receptacle 2, such as that described in Specification 107,880, is attached by keyhole slots and headed pins 19 to the bracket plate 16. The bracket arm 13 is screwed to the plate 16, and to the wall plate 6. Bent wire tooth brush holders may be attached to the plate 16.
Patent GB-577728-A (GB)
Title: Improvements relating to wicks for smokers' lighters
IPC: F23Q2/44
Filed: 1946-02-22
Abstract: 577,728. Smokers' lighters; wicks. OLIVER, C. S., and ROTHERHAM & SONS, Ltd. Feb. 22, 1945, No. 10508/44. [Classes 75 (i) and 75 (iii)] A wick for a smokers' lighter consists of fine metal gauze 11 rolled spirally on a metal rod 12 so as to be in slight radial compression. The gauze may be of copper interwoven with asbestos or other heat-resistant material. The bush 14 in which the wick is mounted is preferably provided with one or more air holes 15.
Patent GB-582584-A (GB)
Title: Method of forming articles of plastic materials
IPC: C04B33/13
Filed: 1944-06-01
Abstract: In the manufacture of ceramic articles such as electric insulators, dishes, flower pots, saggers, tiles, bricks, tubes, or the like, or of dry-process ware such as door-knobs, switch-bases, or the like, an emulsion comprising a lubricant, a volatile constituent, an emulsifying-agent, and water is incorporated in or applied to the clay in order to facilitate flow of the material during formation and the removal of the die after pressing.  The die may be heated so that the volatile constituent of the emulsion is vaporized and so assists in the removal of the die without damage to the article; in addition, valves in the face of the die may assist in the equalization of pressure.  The emulsion may be incorporated in the clay during pugging or kneading, or may be applied to the surface by spraying. The emulsion may consist of 64 parts by weight of oleic acid, acting as the lubricant, 712 parts of a volatile constituent such as gasoline or other petroleum distillate, 25.6 parts of ethanolamine and 800 parts of water, and from 2 to 6 gallons of the emulsion is added to a ton of clay.  Other emulsifying-agents, such as soaps, ammonia or sodium carbonate may be employed.  Specification 421,531 is referred to.
Patent GB-664620-A (GB)
Title: Improvements in or relating to rotary liquid atomizers
IPC: B05B3/10
Filed: 1949-04-21
Abstract: 664,620. Spray-producers. AKTIESELSKABET NIRO ATOMIZER. April 21, 1949 [April 26, 1948], No. 10594/49. Class 69 (iii) Liquid, fed by one or more pipes 6 to a rotating vane wheel, is flung from a cupshaped member 5, and strikes a stationary liquid distribution member 10 comprising a number of stepped blocks 9 arranged in a circle, Fig. 2, and is finally uniformly deflected radially through the space within the vanes by a conical surface 11. Instead of a conical surface 11, air openings 15, Fig. 3, may deflect the liquid radially. Alternatively, circularly spaced, obliquely arranged stepped blocks 17, Fig. 4, are carried by the vane wheel, and the liquid leaves each block at varying levels.
Patent GB-1462101-A (GB)
Title: Magnetic contact units
IPC: H01H50/16
Filed: 1974-03-11
Abstract: 1462101 Magnetic contact units SQUARE D CO 23 Dec 1974 [11 March 1974] 10712/74 Heading H1N A magnetic contact unit has a fixed contact formed by spaced aligned magnetizable electrically conductive elongated members 1, 2 and co-operating with a movable armature contact 4 which on magnetization bridges the gap between the members 1, 2, and is symmetrically arranged with respect to the members 1, 2. The armature is mounted on a spring member 5 which is secured at its ends to a conductive wall member 7 which may be sealed to side walls 11, 12 which are secured to a non-magnetic conductive backing plate 3 for the members 1, 2. The gap between the members 1, 2 may be filled by a non-magnetic conductive fillet (Fig. 4, not shown) and the contact surfaces may be coated with material such as tungsten or silver/ cadmium.
Patent GB-454871-A (GB)
Title: Improvements relating to display and storage cabinets
IPC: A47F3/06
Filed: 1935-04-09
Abstract: 454,871. Cabinets. RODWAY, F., 6, Spring Gardens, Manningham Lane, Bradford, Yorkshire. April 9, 1935, No. 10900. [Class 52 (i)] A cabinet having a revolving shelf structure carried by a vertical shaft D has a cylindrical casing which carries a sliding door B.
Patent GB-219381-A (GB)
Title: A new or improved means for controlling the liquid level in electrolytic cells and the like
IPC: C25B15/00
Filed: 1923-04-23
Abstract: 219,381. Knowles, A. E. April 23, 1923. Multiple-way valves. - A valve controlling the supply of liquid to two chambers comprises a rod s operated by a ball float. The rod has a tapered end engaging an entrance aperture in a disc t and carries a piston u having two sets of apertures w which, when the valve is open, register with the outlets. The relative amounts of the liquid supplied to the two chambers may be controlled by enlarging the apertures of one set.
Patent GB-559218-A (GB)
Title: Carrier-signal limiting system
IPC: H03G7/02
Filed: 1942-08-05
Abstract: 559,218. Wireless receiving circuits; frequency modulation. HAZELTINE CORPORATION. Aug. 5, 1942, No. 10949. Convention date, Oct. 28, 1941. [Class 40 (v)] A limiter comprises a pair of pushpull connected valves, the output circuits of which are highly selective against all harmonics of the carrier frequency applied to the input circuits, and an impedance included in the common portion of the input circuits for developing a negative selt-bias in accordance with the magnitude of the applied carrier signal, the impedance being chosen so as to give a constant output for carrier values in excess of that required to produce a self-bias to cut-off. Fig. 1 shows a limiter stage 15 connected between the I.F. amplifier 14 and frequency detector 16 of a frequency modulation receiver, and comprising a pair of push-pull connected pentodes 19, 20 having sharp anode current cut-off. The input circuit comprises the two halves of secondary 21 tuned to the mid-frequency by a condenser 23, the necessary band width being provided by resistances 24. A correspondingly tuned output circuit 28, 30, 31, 32, feeds the detector 16. A resistance 25 in the common part of the input circuits together with the inherent capacities 26, 26' provide a negative bias due to grid cathode rectification which, above a certain value of the applied carrier, biases the valves beyond cut-off to a degree dependent on carrier strength giving peak rectification. The tuned output circuit selects the fundamental frequency and it is shown by means of graphs that the amplitude is substantially constant over a wide range of input values, and is effective in suppressing transients.
Patent GB-1073278-A (GB)
Title: Improvements in or relating to propulsion nozzles
Inventor: BROWN DAVID MORRIS
IPC: F02K1/08
Filed: 1965-03-15
Abstract: 1,073,278. Jet propulsion nozzles. ROLLS ROYCE Ltd. Feb. 15, 1966 [March 15, 1965], No.10964/65. Heading F1J. A gas turbine jet engine comprises a variable area jet nozzle having a throat formed in part by two overlapping flap members mounted so as to be movable in such a manner as to retain the throat of the nozzle at or upstream of the plane of the nozzle outlet when the flap members are moved, the upstream flap member moving pivotally slows its upstream end and the upstream and downstream ends of the downstream flap member moving substantially radially and axially respectively. Means are provided for causing said movement of the flaps. The engine shown in Fig. 3 comprises a propulsion nozzle 13 having a throat formed in part by a pair of movable flaps 14, 15. The flap member 14 is of curved form 16 at its upstream end Fig. 2 (not shown) and of flat form 18 at its downstream end. The flap member 14 is movable between its minimum area position shown in full lines in Fig. 3 and its maximum area position shown in broken lines, by means of actuators 26 which are mounted in the aircraft fuselage 10 at one end and are connected to the flap member at the other. The upstream end of the flap member carries a roller 21 which engages in a track 23 in a bracket 24 secured to fixed structure. The downstream end of the flap member carries a roller 19 which is in rolling contact with a flat surface 20 of the aircraft fuselage. The flap member 15 is of curved form, its upstream end being pivotally mounted at 27 to fixed structure and its downstream end being in sliding overlapping engagement with the adjacent upstream end of flap member 14 by means of a roller 29 and track 30 so that the flap member 15 moves together with the flap member 14. A ramp 31 is provided upstream of the nozzle 13 so as to avoid a toorapid change in the direction of gas flow to the nozzle. Side walls 32 are provided at both sides of the flap member 14 and move into and out of slots in the aircraft fuselage. Exhaust reheat equipment may be provided as indicated at 34, 35.
Patent GB-794201-A (GB)
Title: Improvements in or relating to methods and apparatus employing photomultipliers
IPC: H01J43/30
Filed: 1955-04-15
Abstract: 794,201. Copying telegraphy and television. TIME, Inc. April 15, 1955 [April 15, 1954], No. 10985/55. Class 40 (3). A complex electrical oscillation for the transmission of picture telegraphy or television signals comprising a high-frequency carrier modulated in accordance with the intensity of light incident upon a photo-multiplier is produced by applying to one dynode an alternating voltage which is substantially free from second harmonic and induces anode current variations at a frequency which is the second harmonic of the frequency of the applied voltage, and filtering the anode current so as to pass signals at the current variation frequency and side-band frequencies thereof and to reject the frequency of the voltage applied to the selected dynode. Apparatus for producing such an oscillation comprises a photo-multiplier having a cathode 19; anode 20 and several dynodes 21-29, the photo-multiplier operating with low plate current (e.g. 0.2 mA.). In order to prevent the anode current due to light variations being swamped by leakage currents, dynode 23 has applied thereto an alternating voltage free of second harmonic. This voltage is generated by an amplifier tube 70 and resonant circuits 71, 72 and 73, 74 tuned to a single frequency and is applied to the dynode 23 through an inductance 75, shunted by variable condenser 76 and inductively coupled to the coil 74 of resonant circuit 73, 74. The applied voltage has a peak amplitude substantially equal to the voltage difference between adjacent dynodes and induces a current variation of twice the frequency constituting a carrier which is modulated by the light variations. This modulated carrier and a signal, due to leakage and having the frequency of the applied alternating voltage, appears at the anode and the output is then filtered so as to pass only the modulated carrier. The filter comprises two coils 85, 86 coupled through shielded cable 87 and having an adjustable condenser 88 in series to vary the band width. The inductance 75 is also connected through variable resistor 80 and variable condenser 81 so as to provide an alternating voltage at anode 20 which largely neutralizes the voltage due to leakage.
Patent GB-566933-A (GB)
Title: Improvements in hydraulic transmission mechanism
IPC: B60T11/16
Filed: 1943-07-07
Abstract: 566,933. Hydraulic machines. PRATT, J. H. July 7, 1943, No. 11010. [Class 69 (ii)] [Also in Group XXXIV] The return spring for the piston-rod of hydraulic master cylinders, such as are used for the operatior of brakes, ships steering gear or aircraft parts, is of the forked bored, leaf or plate kind and is arranged externally of the cylinder and so as to restrain any tendency of the piston-rod to turn. As shown, a plate spring 6 is bolted at 7 to the master cylinder, 3 at one end and the other end is formed with a squared slot which engages a squared part 4b of the piston-rod 4, this end being clamped by the head 5 to which the operator's foot is applied.. Instead of the plate spring, a wire spring of the hairpin type or a single leaf spring having one end anchored and the other end bearing on the head 5 may be used. The master cylinder may be such as described in Specifications 525,910, [Group XXXIV], and 533,224.
Patent GB-647601-A (GB)
Title: Improvements in and relating to refrigerating systems
IPC: F25B5/04
Filed: 1948-04-21
Abstract: 647,601. Refrigerating. BRITISH THOMSON-HOUSTON CO., Ltd. April 21, 1948, No. 11011. Convention date, April 22, 1947. [Class 29] [Also in Group XXIX] In a compression refrigerating system comprising a low temperature evaporator 3 and a higher temperature evaporator 4, refrigerant is supplied either to the evaporators in series or to the evaporator 3 only in accordance with the temperature of the evaporator 4. Liquid refrigerant from a condenser 2 flows through a capillary tube 5 to a solenoid-operated valve 8 comprising a valve member 13 the tapered ends of which' co-operate with valve seats 11, 12 feeding lines 9, 10 respectively which lead to the evaporators 3, 4 respectively. A coil 15 around the valve 8 is supplied with current when a switch 18 is closed by a bulb 19 on the evaporator 4 due to a rise in the temperature thereof. The member 13 rises and refrigerant flows to the evaporator 4 and thence through a valve 21 to the evaporator 3. The valve 21 contains a valve seat 23 co-operating with a valve member 24 actuated by a bellows 25 so as to maintain a constant pressure in the evaporator 4. The control point of the valve 21 is varied by a screw 28 acting on a bellows 27 communicating through a port 30 with the bellows 25. When the evaporator 4 is cold enough the switch 18 opens and the member 13 drops by gravity to direct refrigerant by way of pipe 9 to the evaporator 3 only. The compressor 1 is controlled in accordance with the temperature of the evaporator 3 by a bulb 34. The valve member 13 has longitudinal grooves 14 to allow passage of refrigerant therealong.
Patent GB-1355241-A (GB)
Title: Combined circuit element and interconnection module and method of making
IPC: H05K3/22
Filed: 1971-04-23
Abstract: 1355241 Making interconnection modules; soldering BUNKER RAMO CORP 23 April 1971 [22 June 1970] 11092/71 Addition to 1330140 Headings B3A and B3R [Also in Divisions H2 and H1] The invention of the parent Specification 1,330,140 is modified by arranging for circuit elements to be mounted directly on the interconnecting module. rather than the terminal elements. The terminals of the elements are soldered to the wires and a power supply busbar (Fig. 6, not shown) is incorporated on the module.