baber/WOPTO huggingface dataset:
Patent GB-909684-A (GB)
Title: Improvements in or relating to electrical pulse generator
IPC: G01P3/481
Filed: 1959-06-10
Abstract: 909,684. Make-and-break switches, mechanical. BRITISH PETROLEUM CO. Ltd., and PHILLIPS, R. M. June 3, 1960 [June 10, 1959], No. 19859/59. Class 38 (5). [Also in Group XXXVIII] A rotary make-and-break switch for providing a pair of pulse trains wherein the ratio of the number of pulses per unit time is predetermined but capable of selection by an operator comprises a sealed flameproof casing 11 enclosing two discs 12 and 14 on a common shaft 13 driven, for example, by a fluid-flow meter 18. The discs 12 and 14 have electrically conductive segments extending radially inwards from a conductive periphery such that two endless tracks of alternately conducting and non- conducting segments are respectively provided on their surfaces (Fig. 1, not shown). Radial brushes 22 and 23 are connected to electric supply and pulse outputs are derived from axial brushes 24 and 25. The upper disc 12 is secured to shaft 13 by a nut 28 and may be changed to provide a different pulse rate output from brush 24. In a second embodiment (Fig. 5, not shown), the two discs are replaced by a single detachable composite disc having segmented tracks on both surfaces, the upper of which is interchangeable to provide a different pulse ratio (Fig. 3, not shown). It is also stated that the endless tracks may be provided on cylinders or bands instead of discs, and that a track may consist of alternate hills and valleys acting as a cam surface to effect alternate opening and closing of a pair of contacts. Specifications 909,681, 909,682 and 909,683 are referred to.
Patent GB-147826-A (GB)
Title: Improvements in oil burners of the rotary type
IPC: F23D11/06
Filed: 1920-07-09
Abstract: 147,826. Ray, W. R. May 10, 1915, [Convention date]. Air-pressure sprayers; rotary apparatus.-Air for an oil burner is supplied to a casing A and through openings 14 in a partition plate 2 to the vanes 15 of a turbine wheel 8, causing this with its connected shaft 7 and burner head 9 to revolve at a high velocity. Oil is fed from a tank 13 by a pipe 12 to the burner head 9, and is projected through openings 11 against flanges 10 and into a stream of air, which flows from the turbine and is indicated by arrows c. The air supply is controlled by a circular disk valve 19 having two sets of openings 20 and 21, the former controlling the inlets 14, and the latter the by-pass ports 22, through which air is admitted without passing through the turbine wheel 8, the disk 19 being operated by a hand-wheel 25. Vanes 26 direct the air in parallel streams so as to spray the fuel from the nozzle 9. The air-supply nozzle may be contracted in relation to the burner head by rocker arms 31 slotted to receive blades 32 which are spring-pressed against the partition vanes 26. Formed on the end of each rocker arm 31 is an arm 33, and, rotatable by means of a hand-wheel 34, shaft 35, crank-arms 36, and link 37, is a disk 38 provided with cam-members 39 which engage the arms 33 when the disk is turned, causing the blades 32 to slide on the vanes 26 and contract or expand the opening surrounding the burner head.
Patent GB-1314683-A (GB)
Title: Arc power supply with current level control
IPC: B23K9/10
Filed: 1970-04-24
Abstract: 1314683 Automatic control of arc welders CHEMETRON CORP 24 April 1970 [25 April 1969] 19918/70 Heading G3R [Also in Division H2] The arrangement described is generally similar to that of Specification 1314682, but the claims relate to the use of a current limiting unit 15a which, in the event of excessive arc current, operates to retard the firing of main thyristors 22-24. This is accomplished by making a transistor 90 conductive so as effectively to ground one side of potentiometer 56 in the input to summing amplifier 9. The transistor 90 is controlled by a circuit which includes blocking Zener diodes 99, 100 and a time-delay capacitor 103, and the arrangement thus provides self-resetting arc current limitation.
Patent GB-276140-A (GB)
Title: Improvements in or relating to adjustable stands convertible into tables
IPC: A47B85/00
Filed: 1926-08-12
Abstract: 276,140. Louis, E. S., and Skippers, J. Aug. 12, 1926. Shelves.-In a stand of the kind which supports leaves inter-connected by parallel linkages so that they may occupy superimposed positions or an edge-to-edge position in which they constitute a table, as described, for example. in Specifications 1646/99, and 7536/00. [Class 3, Advertising &c.], two leaves only are provided and these are so arranged that when they are swung to the table position a portion of each leaf will he directly over the supporting stand. The stand comprises a rigid frame formed by uprights 10 - - 13 and cross-bars 14 - - 16. Two leaves 18, 19 each of the same width and length as the corresponding dimensions of the stand are interconnected by parallel pivoted links 20, each link being pivoted mid-way of its length to a corner of the stand. By this arrangement, in the table position one half of each leaf lies above and is directly supported by the stand. Means for locking the leaves in either of their two positions comprises two bolts 24, Fig. 3, arranged beneath the lower leaf 18 and pressed by springs 25 to protrude beyond the ends of the leaf. In the superimposed position the bolts engage apertures in the legs 10, 13 and in the table position apertures 28 in the links 20. The bolts are retracted by links 32, 33 and a hand-lever 29. Specification 276,139 also is referred to.
Patent GB-147925-A (GB)
Title: An improved hearth for metal heating furnaces
IPC: C21D9/70
Filed: 1920-07-09
Abstract: 147,925. Allis, H. E., (Representative of Allis, T. V.). Sept. 11, 1918, [Convention date]. Hearths.-The hearth of a continuous bar-heating furnace is formed of a number of transverse sections having V-grooves in which the bars are supported in an inclined position. Each section is cast with a number of V-grooves 15 enlarged at the apex 16, the corners 17, 18 formed by the enlargement being rounded off as shown. Side and end strengthening-webs 19, 25 are formed on the sections, and on the webs 19 are cast bosses 21, 35 by which the sections rest on the furnace bed, and are spaced from one another respectively. The webs 19 are cut away at 26 to fit over bars secured in the furnace bed, by which the grooves of the various sections are maintained in alinement. Each groove is flared for a part of its length to facilitate the passage of the bars from one section to the next, and the section nearest the discharging-end of the furnace is provided with depending lugs 36, which are let into the bed to prevent displacement of the series of sections as the bars are advanced. By using sections of different width, or with bosses 35 of different thickness, hearths of various over-all lengths can be built up in the furnace.
Patent GB-531022-A (GB)
Title: Improvements in or relating to automatic feed water regulators
IPC: F22D5/12
Filed: 1939-07-10
Abstract: 531,022. Feed water regulators. COCKBURNS, Ltd., RODGER, J., and GRANT, T. July 10, 1939, No. 19999. [Class 135] An automatic feed water regulator for steam generators actuated by feed water pressure acting on a piston under the control of an auxiliary valve actuated by a float has the auxiliary valve in the form of a bifurcated lever straddling diametrically opposed control ports. The double beat main valve 2, 3 is formed integrally with the leaky actuating piston 4 and has the stem 9 formed with an axial passage 18 connecting the space above the piston with the control ports 15. The control valve 6 is carried by a spindle 19 mounted on a pair of adjustable needle pivots said spindle also carrying a lever arm 24 coupled to a float 8. The float 8 is guided for reciprocation in a chamber 7 connected at 30 and 31 to the steam generator and is provided with gear 26 whereby the control level may be adjusted. The valve 6 is fitted with a weight 25 to counterbalance the weight of the float and lever. An indicator 17 indicates the position of the feed valve which may be manually operated by a screwed spindle 13 provided with a head 15 having a lost-motion connection with a socket 16 secured to the piston. A normally locked testing lever 32 is fitted with a forked member 33 adapted to be moved into engagement with the lever 24.
Patent GB-954278-A (GB)
Title: Artificial flower arrangement
IPC: A41G1/00
Filed: 1962-05-24
Abstract: 954,278. Artificial flowers. RICO Ltd. May 24, 1962 [May 3, 1962], No. 20060/62. Heading A4X. An artificial flower arrangement 1 has a main stalk 2 and branches 3 moulded in polyethylene with a reinforcing wire 4 and provided with nipples 5 which receive leaves 15 or buds 18 which comprise an outer portion 19 and petals 20, an opening 22 in portion 19 receiving the nipple 5 and the stalk 2 has a pointed lower part 7 provided with upwardly extending hooks 8 to permit the assembly to be secured in a base 9 of foam plastic. In a modification Fig. 10 a main trunk 31 fits into a base 36 and has a foliage-containing head 32 with a main stalk and branches 41 to receive supplemental stems 46.
Patent GB-1387683-A (GB)
Title: Transmission line detecting systems
IPC: H01B11/18
Filed: 1972-05-01
Abstract: 1387683 Intruder alarms HONEYWELL Inc 1 May 1972 [14 May 1971] 20064/72 Heading G4N [Also in Division G1] An intruder detection system comprises a beryllium copper first conductor 11 with a ferromagnetic magnetostrictive coating 12 having a magnetization vector, a second conductor 14 enclosing the conductor 11 and separated therefrom by insulation 13, the first conductor being freely movable with respect to the insulation, an oscillator 19 and monitor connected to the transmission line constituted by the conductors whereby changes in the impedance of the line are caused by disturbances in the orientation of the magnetization vector due to an intruder which changes actuate an alarm. The coating is 80% nickel 20% iron by weight. A magnetic field is applied about conductor 11 during coating so that the easy axis is oriented circumferentially about the conductor. The line may be part of the frequency determining circuit of the oscillator. The line may have an air space between conductors 11 and 14 and spaced supports (17) and weights (18), Fig. 3 (not shown), or the conductor 11 may be disposed sinuously within the insulating coating 13. In the embodiment of Fig. 2 (not shown), the conductors 11, 14 are not coaxial, but twin.
Patent GB-910846-A (GB)
Title: Improvements in or relating to resistance welding
Inventor: SIMMIE WALTER STEWART
IPC: B23K11/10
Filed: 1960-06-08
Abstract: 910,846. Welding by pressure. PRESSED STEEL CO. Ltd. June 7, 1961 [June 8, 1960], No. 20068/60. Class 83 (4). In resistance welding overlapped metal panels the inner panel is engaged by one electrode passing through a hole in the outer panel and the outer panel is engaged at a position adjacent the hole by another electrode. Overlapped workpieces 13, 14 are supported on brackets 12 on a jig 11 which also supports on column 18 pivoted arms 19 carrying electrodes 20 connected in parallel to a welding transformer. In operation the electrodes 20 are swung into the position shown when they enter holes 16 in upper workpiece 13 to engage a flange 17 on the lower piece 14 and a welding gun 25 connected to the transformer is engaged with the workpiece 13 adjacent one of the electrodes 20 and current is supplied by a hand or pressure switch. Further welds may be made by moving the gun into contact with the work at further positions or more than one gun may be used. A number of pairs of holes may be provided in a long workpiece.
Patent GB-1146313-A (GB)
Title: Improvements in or relating to fluid bearings
Inventor: DEE COLIN WILLIAM
IPC: F16C32/06
Filed: 1966-05-06
Abstract: 1,146,313. Bearings. G. C. DAVIS. 2 May, 1967 [6 May, 1966]. No. 20102/66. Heading F2A. In a fluid-bearing, pressurized fluid is supplied to the clearance between the respective rotatable bearing members in such a manner as to tend to restrain tendency of the fluid within the clearance to rotate with one of the relatively rotatable members, the fluid being supplied at a number of angularly-spaced zones so as to tend to form a corresponding number of fluid pads within the clearance. In an embodiment, a bearing comprises a member 1 containing two axially-spaced annular end-members 2 with a member 3 therebetween. The member 3 is slit into three segments by cutting it from end to end in planes which are tangential to its inner circumference. One face of each segment is formed with a land so that, when the three segments are re-assembled, a tangential slot 4 is provided between each adjacent pair of segments. Each end face of each segment is also formed with a land in order to provide radial clearances 5 between the segments and the end members 2. In use, pressurized-fluid is supplied through a feed-opening 7 in the member 1 and is passed to the radial clearances 5, this being facilitated by means of three chordal planes provided on the member 3 so as to allow the fluid to flow from an annular chamber 6 which is connected to the feed-opening 7. Thus a clearance 8 between the member 3 and a shaft 9 mounted therein is supplied with pressurized fluid via the radial clearances 5 and via the three axial tangential slots 4, the latter supplying pressurized fluid in a direction which is counter to the direction of rotation of the shaft 9. In a modification, the radial clearances 5 are omitted and the member 3 is force-fitted into the axiallyspaced annular end-members 2.
Patent GB-836639-A (GB)
Title: Inert gas supply system for aircraft fuel tanks
Inventor: TAYLER COLIN ANDREW MILLAR
IPC: B64D37/10
Filed: 1957-06-26
Abstract: 836,639. Protecting fuel tanks against explosion &c. BRITISH OXYGEN CO. Ltd. June 13, 1958 [June 26, 1957; Jan. 2, 1958], Nos. 20151/57 and 139/58. Class 47 [Also in Group XXVIII] An aircraft fuel system incorporates a fuel tank which is pressurized for protection against explosion and spontaneous ignition by pressurizing gas comprising compressed air diluted with nitrogen in such proportion as to provide an inert gas. In Fig. 1, compressed air bled-off from an aircraft engine compressor 11 passes to a mixing chamber 12 via a duct 10 which is tapped at 13 to deliver part of the compressed air through a pressure reducing valve 15 into a container 14 of liquid nitrogen. Liquid nitrogen is thereby conveyed through a duct 16 and non-return valve 17 into a swirl atomizer 18 in the mixing chamber 12 whereby it is vaporized and mixed with compressed air. The mixture of compressed air and nitrogen passes along a duct 20 into the fuel tank 19 under the control of a valve 21 which operates in response to variations from a predetermined pressure differential between the interior of the tank and the ambient pressure so as to maintain said pressure differential substantially constant. A thermostat 24 in the duct 20 controls a metering valve 23 in the duct 10 in such a manner as to keep the temperature of the mixture, and thereby the proportions of compressed air to nitrogen, at a constant predetermined value. In Fig. 2, compressed air at full pressure taken directly from the duct 10 is applied to the liquid nitrogen container 14 to deliver nitrogen at the same pressure through a conduit 16 and non- return valve 17 to an outlet nozzle 27x, Fig. 4, of the atomizer 18 in the mixing chamber 12. The nozzle 27 includes an outlet 30 of predetermined flow area and has internal radially disposed flow passages 31 which provide a radial spray pattern of liquid nitrogen directed into a surrounding annular compressed air stream passing though an annular orifice 29 of predetermined flow passage surrounding the atomizer 18 directly from the duct 10. The orifices 29, 30 of predetermined flow area maintain a predetermined ratio of nitrogen to compressed air. In Fig. 2, the liquid nitrogen container 14 is located within the fuel tank 19. Reference has been directed by the Comptroller to Specification 811,750.
Patent GB-183488-A (GB)
Title: Improvements in mechanism for transforming reciprocatory motion into rotatory motion or the reverse
IPC: F16H23/06
Filed: 1922-07-24
Abstract: 183,488. Pateras Pescara, Raul, Marquis of. July 22, 1921, [Convention date]. Swash-plate linkages.-In reversible swash-plate mechanism, the reciprocating members, such as a circumferential series of pistons 15 of an internal-combustion engine carried in an aluminium casing 23, are provided with radial recesses in which slide cylindrical pistons 27 loosely carrying cylindrical blocks 28 fitted over the edge of the swash-plate 11. A second oppositely inclined swash-plate 30 similarly acting may be arranged on the same driven or driving shaft 10.
Patent GB-257264-A (GB)
Title: Improvements in compressors driven by internal combustion engines
IPC: F04B31/00
Filed: 1926-08-17
Abstract: 257,264. Nordensson, T. K. A. Aug. 19, 1925, [Convention date]. Generating combustion products under pressure. -Two compressor pistons are connected with the pistons of a double-acting internal-combustion engine and a compression stroke is obtained for each engine stroke, the compression pistons operating in separate cylinders. The air compressed may be wholly used for combustion and scavenging in the engine, or air may be compressed in one cylinder for these purposes and in a second cylinder for other purposes. The exhaust gases may drive a turbine. Compressor pistons a, b are directly connected to engine pistons c, d and to each other. The engine works on the twostroke cycle and its cylinders receive air from one of the compressor cylinders through pipes h. i. The exhaust gases may drive a turbine j, or pass to other consumers or to atmosphere through branches q, r. The fuel may be sprayed into the engine cylinders through nozzles s, t, or a carburettor u may deliver a fuel mixture to a compressor cylinder and so to the engine, spark plugs being provided. In either arrangement, ignition may take place by compression.
Patent GB-516036-A (GB)
Title: Improvements in or relating to measuring arrangements for high frequency currents
IPC: G01R19/22
Filed: 1938-07-08
Abstract: 516,036. Current measurements; compensating instruments for temperature errors. SIEMENS & HALSKE AKT.-GES. July 8, 1938, No. 20309. Convention date, July 8, 1937. [Class 37] For measuring a highfrequency current in a conductor 1, a single conductor current transformer is provided having a secondary winding 2, in series with which are a measuring rectifier 3, a series resistance 4 independent of temperature, and a D.C. measuring instrument 5. A condenser 6 is provided to shunt the A.C. component due to the capacity of the rectifier 3. Temperature errors due to the variation of the resistance of the rectifier 3 are compensated for by connecting in parallel with the rectifier a compensating resistance 7 responsive to temperature in the same sense as the rectifier but independent of the strength of the current passing through it.
Patent GB-949590-A (GB)
Title: Photo-copying machines
Inventor: LONGDEN WALTER
IPC: G03B27/14
Filed: 1961-06-06
Abstract: 949,590. Feeding sheets. J. HALDEN & CO. Ltd. May 17, 1962 [June 6, 1961], No. 20311/62. Heading B6B. [Also in Division G2] The feed board of a photo-copying machine (see Division G2), embodies suction means serving to retain manually introduced sheets to be exposed in position for introduction to the nip rollers. Three embodiments of such feed boards which are attached to the machine so that the left-hand side abuts the rollers, are shown in Figs. 2, 3 and 4. Suction is applied through lines 25, 25 and 43, respectively, and the respective rollers 26, 33 and 41 may be neutrally or positively rotated.
Patent GB-335291-A (GB)
Title: Improved means for starting synchronous motors
IPC: H02K7/118
Filed: 1929-07-03
Abstract: 335,291. Telehor Akt.-Ges. March 7, 1929, [Convention date]. Driving-arrangements.- The invention relates to a device for starting small synchronous motors by hand, such for example as motors of the phonic wheel type used in television receiving apparatus. A friction drive is employed, and in the form shown in Fig. 1, a driving wheel e is pressed in a direction parallel to the shaft b of the synchronous motor against the action of a spring g until the periphery, which may be covered with rubber k engages with a preferably conical friction wheel c on the shaft of the motor. When the handle is released, the wheel e moves in the direction of the arrow h into the disengaged position. In the second construction, Fig. 2, a hand wheel m of large diameter is connected to a small pulley o on the shaft of the synchronous motor through a yielding belt b, for instance a rubber band or wire helix. Rotation of the hand wheel starts the motor. When the motor attains synchronous speed, the handle f is released and the wheel comes to rest since it will not be revolved by the relatively loose driving belt p.
Patent GB-734687-A (GB)
Title: Improvements in screens for cathode ray tubes
IPC: H01J29/89
Filed: 1952-08-13
Abstract: 734,687. Colour filters. DEUTSCHE TAFELGIAS AKT.-GES. DETAG. Aug. 13, 1952 [May 29, 1952], No. 20391/52. Drawings to Specification. Class 97 (1). [Also in Groups XL (b) and XL (c)] A protective screen of compound layer structure for a cathode-ray tube serving also as a selective optical filter comprises two outer layers and at least one intermediate layer, one of said layers being made of organic glass (i.e. a synthetic resin, gelatin or other organic substance) and coloured to have a maximum transparency in the blue spectral band whilst another layer, also made of organic glass, is coloured to have a minimum transparency in the green spectral band. By convect selection of the colour densities of the two layers the screen appears optical grey in colour and may be given a spectral permeability corresponding to the fluorescence of a cathode-ray tube with a maximum output in the blue-violet (4500 Š) and yellow-orange (5800 Š) bands. Colouring by copper compounds is employed to produce the maximum transparency in the blue spectral band and colouring by cobalt compounds is employed to produce the minimum transparency in the green spectral band. In one arrangement, Fig. 1 (not shown), two intermediate layers incorporating the respective colouring compounds are sandwiched between two colourless outer layers. In a second arrangement, Fig. 2 (not shown), two outer layers are coloured and separated by a single colourless intermediate layer, whilst in a third arrangement, one outer layer and an intermediate are coloured and these are combined with a colourless outer layer of either organic or inorganic glass. One or both of the outer surfaces of the screen may be "bloomed".