baber/WOPTO huggingface dataset:
Patent GB-1530332-A (GB)
Title: Balanced portable pedestals
IPC: H04N5/222
Filed: 1976-03-13
Abstract: 1530332 Stands W VINTEN Ltd 24 Feb 1977 [13 March 1976] 10168/76 Heading A4H [Also in Division F2] A telescopic support for cameras comprises inner and outer relatively movable columns 2, 1 relative movement of which causes pressurization of the inner column whereby it can be locked in its extended position for supporting a camera on mount 24. Lifting of the inner column 2 causes air in chamber 32 to be expelled into chambers 27, 29 via flap valve 36. Depression of the inner column closes the flap valve 36, produces a partial vacuum in chamber 32 and causes atmospheric air to enter via ball-valve 35, tube 34 and aperture 33. When, after repeated operation, the pressure within chamber 29 is sufficient to support instrument mount 24 at about half stroke of a piston 30 attached to base 4 by cylinder 31, pin 37 is operated to lift ball-valve 35 so that no further pumping takes place. Minimal pressure is then required to lift or raise the inner column to the desired position where it is locked by clamp 18.
Patent GB-331513-A (GB)
Title: Sheave assembly
IPC: B66D3/06
Filed: 1929-04-02
Abstract: 331,513. Emsco Derrick & Equipment Go. Nov. 12, 1928, [Convention date]. Mine and like head sheaves.-A sheave assembly for crown blocks such as is used in oilwell equipment is so arranged that the parts may be assembled in adjusted position prior to being positioned on a derrick head. Each sheave assembly includes a pair of boxes 16, the lower faces 17 of which rest on the upper flanges of parallel I-beams 14 and are secured thereto by bolts 18. A shaft 24 passes through openings 21 in the boxes and is formed near each end with flat-bottomed recesses 25 which are engaged by straps 27. Bolts 29 connect the straps to the lower part of the boxes. Roller bearings 38 are placed between the sheave 37 and a central hardened portion 35 of the shaft.
Patent GB-1114396-A (GB)
Title: Method of manufacturing replaceable soldering-iron tips
Inventor: KENT GEORGE MOSHER
IPC: C25D7/00
Filed: 1967-03-04
Abstract: <PICT:1114396/C6-C7/1> A method of manufacturing a detachable tip for a soldering iron comprises electroplating at least a shank portion 12 of a high heat conducting metal tip member, e.g. formed of copper, with a layer of a different metal or combination of metals having a melting point substantially above the temperature to be developed within the soldering iron with which the tip is to be utilized, the layer having a thickness of at least 0.002 inches; smoothing the outer surface of the layer and subsequently electroplating thereon an outer layer of chromium having a thickness of at least 0.0001 inches. The first layer deposited may be of iron, nickel or cobalt.  A layer of nickel, e.g. of at least 0.0004 inches thickness may be deposited upon the workpiece after the smoothing operation and prior to deposition of the chromium layer, e.g. the tip may be coated with consecutive layers of iron, nickel and chromium in the proportions which form the constituents of stainless steel, such that if heat generated during use is such as to produce alloying of said coatings the oxygen resistance and physical properties will become enhanced with continued use of the tool.
Patent GB-907866-A (GB)
Title: Improvements in and relating to threshing machines
IPC: A01F12/34
Filed: 1961-03-21
Abstract: 907,866. Threshing machines. CLOAS, W. March 21, 1961 [July 12, 1960], No. 10355/61. Class 6(3). The trays 14 beneath the straw rack 11 are kept free of clogging by loose movable members such as chains 16 which are set in motion by the jigging of the trays. As shown, each tray has a single chain attached to an anchorage 17 remote from the discharge aperture 15 of the tray, but there could be more than one chain and they could be arranged transversely along the tray. Alternatively, cables or other flexible members could be employed. The straw rack has a serrated surface 12 with discharge apertures 13.
Patent GB-462424-A (GB)
Title: Method and apparatus for examining yarn or thread
IPC: G01N33/36
Filed: 1936-04-08
Abstract: 462,424. Examining yarns and threads. GOTO, K. April 8, 1936, No. 10382. [Class 120 (iii)] Yarn, thread or the like is disposed in substantially parallel lengths or windings above a sheet of sensitized paper which is then exposed to the action of light rays in order to obtain thereon a print of the yarn etc.; the prints can then be examined for defects in the yarns. The yarn may be wound to and fro over a frame containing the sensitive paper or may be in short lengths secured across the frame. As shown the yarn lengths or windings 2 are hooked over pins 6 at the ends of a frame 3 and pass through racks 7 by which they are arranged parallel and spaced equidistantly above a sheet of sensitized paper 1 pressed by a board 5 against the yarn which is forced against a sheet of glass 4 in the top of the frame. Racks 7 of different pitch may be provided for different kinds of yarn and the racks may be replaced by a series of plates movable in grooves in the ends of the frame so that the yarn is disposed between the plates and held thereby.
Patent GB-216114-A (GB)
Title: Circuits for electron discharge tubes
IPC: H03F1/54
Filed: 1924-04-28
Abstract: 216,114. Western Electric Co., Ltd., (Assignees of Shackleton, S..P.). May 16, 1923, [Convention date]. Thermionic amplifiers.-Relates to methods of giving grid bias to a number of valves of which the filaments are in series. The known methods of providing separate or common C-batteries or utilizing the potential drop in the heating circuit are discussed. The last two methods have the disadvantage that, owing to variations in the drop in the filaments and to the fact that these variations are cumulative, the bias given to some of the grids may vary unduly, and the invention consists in combining the two methods so that this may be avoided. In one form, two or more valves are biassed by means of the drop in the filament circuit and the remainder by a C battery. In a modification, all the grids are biassed by using both the drop in the filament circuit and a C battery. It is assumed, in the arrangement shown in Fig. 2, that it is desired to give each grid a negative bias of 9 + 1 volts with respect to the negative end of the filament, and that the drop in each filament is 4.5  0.5 volts. The potentials of various points with respect to the point 1, and the voltage of the parts C', C<2> of the C-battery are shown on the drawing. In this case, the valves D, E are biassed from the heating circuit alone while the valves G, Fuse the C-battery in addition. Fig. 3 shows the application of the first form of the invention to a system in which two (or more) groups of valves have a common heating battery. Each group is treated in the same way as the single group shown in Fig. 2, but in this case the points 14, 14<1> are connected to the C-battery through large resistances R, R'. These do not affect the grid potentials since the current through them is negligible, but have the effect of making the potential of the points 14, 14<1> independent of changes of current in the heating circuit of the other set of valves. The coils 16, 18 and condensers 17,19 are provided to furnish a low-impedance path to ground for speech currents which might otherwise give rise to cross talk. In the modification, the drop across the filaments is 6 volts and there are only two valves in each group. The two halves of the C-battery give 6 and 2 volts and resistances are included in the heating circuits between the filaments and the points of connection of resistances R, R<1> designed to give a drop of 1 volt. Specification 166,662 is referred to.
Patent GB-168351-A (GB)
Title: Improvements relating to devices for washing tumblers, drinking glasses and the like
IPC: A47L15/00
Filed: 1920-08-11
Abstract: 168,351. Forte, C. Aug. 11, 1920. Bottles, drinking-vessels, jars, and vessels, washing.-In a device for washing tumblers, jam jars, bottles, and other vessels, the vessel is placed over a hollow rotatable brush spindle d so as to open a valve c<2> against the action of a spring c<3> and supply water through openings in the top as well as through the sides of the brush spindle. The frame d carries brushes h for the outside of the vessel and the hollow walls are in communication with the brush spindle, on which it is mounted. The brush-carrying members are rotated by a Pelton wheel when the watersupply valve k<2> is opened, a valve k<1> being provided for adjusting the water pressure. In modifications, the valve c<2> is seated under the lower end of the brush spindle and is operated through a rod extended to engage the bottom of the vessel to be cleaned; or the brush spindle may be mounted on the spring-pressed valve, which is opened when the spindle is depressed. The valve c<2> may also be arranged to control the water supply to the motor wheel. In the arrangement shown in Fig. 7, the brush spindle when depressed opens communication between the port s<1> and supply pipe k, and an arm t<1> completes the motor circuit through the movement of a rod t<2> and contact member t to rotate the spindle through bevel-gearing r<2>, r.
Patent GB-751007-A (GB)
Title: Improvements in or relating to fuel control mechanism for gas turbines
Inventor: FARKAS THOMAS PAUL
IPC: F02C7/26
Filed: 1953-04-16
Abstract: 751,007. Automatic control systems. UNITED AIRCRAFT CORPORATION. April 16, 1953, No. 10494/53. Class 38 (4). A voltage, the frequency of which is dependent on the speed of a jet turbine 10, Fig. 1, is derived from a tachometer alternator 12 and applied to an A.C. bridge circuit 14 the balance point of which is manually set by a potentiometer 48 to correspond with a desired speed and a direct voltage corresponding to any speed error is produced and applied to a cross-over network 18. A voltage dependent on jet tailpipe temperature derived from thermocouples 20 is applied to a circuit 22 from which a temperature error direct voltage is applied through an amplifier 24 to cross-over network 18 is arranged to be positive for overspeed and overtemperature and negative for underspeed and under-temperature. Cross-over network 18 includes biased rectifiers so arranged that speed or temperature error voltage, according to which is the most positive or least negative, is passed to an amplifier 28 to control the energization of a solenoid 30 operating a control valve 32 regulating the supply of fuel from a pump 38 to fuel jets 36. Amplifiers 24, 28 are of the type which have their inputs and outputs chopped by synchronous switches 74, 80 and 71, 210 respectively. A variable datum is provided for the temperature error voltage by applying a voltage dependent on speed to contact 79 of switch 74. During starting, prior to ignition, a voltage dependent on speed, derived from a circuit 46 is applied to contact 166 of switch 71 so that the temperature error voltage is over-ridden and valve 32 is moved to a minimum fuel flow position. The temperature control then only becomes effective if ignition should occur or when a relay 64 operates at a predetermined speed. Power unit 54 for the system derives its power from an external A.C. supply 60 during engine starting but changes over to alternator 12 when a relay 64 is energized automatically at a predetermined speed. Specification 751,003, [Group XXIV], is referred to.
Patent GB-198168-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F7/08
Filed: 1922-04-12
Abstract: 198,168. Ablett, H. E. April 12, 1922. Signs, supporting and securing.-An interchangeable background f is provided for a loose letter sign and consists of pliable material, preferably cloth. The support is formed in sections held together by canvas c and strips h which keep the sections rigidly in position. Bars e are lodged in recesses d in the adjacent surfaces of the sections; the background f for the letters is wound around these bars as shown in Fig. 3. The size of the sign may be increased by connecting together two or more smaller sections by means of dowel pins placed in holes in the ends of the sections. The stiffening strips h may be replaced by clips which engage recesses in the ends of adjacent sections.
Patent GB-493554-A (GB)
Title: Improved game apparatus
IPC: A63F9/00
Filed: 1937-04-13
Abstract: 493,554. Punch-board game. ABBEY, A. (Score Corporation, Ltd.) April 13, 1937, No. 10536. [Class 132 (ii)] A game apparatus comprises a board bearing a list of problems, a list of winning indicia and a plurality of rows of recesses, each of which contains an indicia-bearing member, the indicia in each row forming the answer to its corresponding problem, and frangible closing means for the recesses the list of problems and the rows of recesses containing the indicia-bearing members being correspondingly numbered and one or more of the indicia-bearing members bearing indicia corresponding to those of the list of winning indicia. The board contains rows of holes 2, and carries on each side a sheet 3 of puncturable material such as metal foil, and a cover 4 with holes aligning with the holes 2, each of which contains a fan-folded strip of paper 5 bearing a letter. These letters in each row spell a word, the solution of the corresponding problem. To check his answer, the player punches the holes which he thinks hold the winning letters. Specifications 442,783, 443,968, and 464,876 are referred to.
Patent GB-624044-A (GB)
Title: Improvements relating to oil seals
IPC: F16J15/20
Filed: 1947-04-21
Abstract: 624,044. Stuffing-box substitutes. ROTAX, Ltd., and MILLNS, T. W. April 21, 1947, No. 10548. '[Class 122(v)] An oil sealing ring comprising a radially resilient metal ring 1 adapted to grip a rotary shaft and a rubber or like annulus 5 in which the ring is embedded. Preferably the ring 1 has a plurality of convolutions, for example two with an abrupt deflection 2. The ring is flanked on one side and enclosed peripherally by the annulus 5 which may be enclosed in a metal part 7 formed with tongues 8 engaging the annulus and notches 9 in the ring. The metal part may be enclosed in another metal part 10. Alternatively the combined metal ring and annulus may be secured directly in a recess in the bearing through which the shaft extends.
Patent GB-454604-A (GB)
Title: Improvements relating to containers or holders, supports and couplings for incandescent electric lamps, primarily intended for decorative purposes
IPC: F21Y101/00
Filed: 1935-04-06
Abstract: 454,604. Artificial Sowers &c. MOODIE, A., WILLIAMS, H. N. B., FOWLER, J. R., DEVEREUX, MOODIE, & CO., Ltd., and WALKER & SON, Ltd., H., 113, New Bridge Street, Newcastle-on-Tyne. April 6, 1935, No. 10710. [Class 63] [See also Groups XI; I, XIV, and XXXVI] Electric lamps b with decorative shades &c. a consisting of artificial flowers, fruits or leaves, or natural flowers &c. treated to render them lasting, are supported by stems c forming duplex conductors. A number of lamps may be mounted on a plate j, forming the top of a casing q in a bowl p.
Patent GB-670983-A (GB)
Title: Improvements in and relating to angular speed detector and its applications
IPC: G01C19/56
Filed: 1949-04-22
Abstract: 670,983. Electric systems for correspondence control. FRANCAIS, ETAT. April 22, 1949. [April 23, 1948 ; July 19, 1948 ; March 22, 1949] Nos. 10719/49, 10720/49 and 10721/49. Class 40 (i). [Also in Groups XX, XXIX, XXXIII and XXXV] The direction and magnitude of the speed of angular movement of a craft in two planes at right angles to each other is detected by means of a girometer 68 (see Group XX) comprising a rotating blade mounted to oscillate relatively to its hub in a'meridian plane containing its axis of rotation, the amplitude of such oscillations being proportional to the speed of the angular movement and being detected inductively by pick-offs 66, 67 located in rectilinear planes and connected to electromagnetic relays 69 and 70 provided with arms 71, 72 intersecting at M a vector drawn from which to the zero position 0 indicates in magnitude and direction the resultant angular movement.
Patent GB-548510-A (GB)
Title: Improvements in or relating to air heating apparatus
IPC: F24B1/188
Filed: 1941-08-23
Abstract: 548,510. Heating air. WARRINGTON LIGHT CASTINGS CO., Ltd., and MELTON, A. Aug. 23, 1941, No. 10771. [Class 64 (iii)] A fireplace for insertion in a brickwork chimney broast has hollow airheating side walls 1 which open into an upper transverse air passage 4 with a central outlet 5 for the heated air. Air enters the hollow walls through bottom openings 2. The detachable backplate is formed with a flue opening 9.
Patent GB-1410905-A (GB)
Title: Electrical function generator
IPC: H03K4/02
Filed: 1971-04-22
Abstract: 1410905 Waveform generators; sawtooth generating circuits A M CALVERD 24 July 1972 [22 April 1971] 10771/71 Headings H3H and H3T A smooth approximation to a desired waveform is generated by generating a discretely incremented approximation and smoothing in between the steps by adding a sawtooth wave of amplitude and frequency corresponding with the amplitude and frequency of the discrete increments. A linear ramp signal may be generated by adding a sawtooth waveform of constant amplitude and frequency (generated by charging and discharging a capacitor) to a staircase waveform generated by counting the cycles of the sawtooth wave. In Fig. 3 a sinusoidal signal is generated. The sawtooth waveform is generated by charging and discharging a capacitor, and the cycles of the waveform are counted to derive address signals for read-only memories ROM1 and ROM2, which store the first quadrant of a sinewave and cosinewave respectively and are stepped forwards and backwards, with and without inversion of their outputs to generate stepped approximations to full sine and cosine waveforms. The output of ROM2 is used to multiply the output of the sawtooth generator, which is then added at A4 to the output of ROM1. In both arrangements, spikes are removed by subtracting the voltage across R5 from the sawtooth waveform. The output may be frozen by switching off the charging current for the capacitor.
Patent GB-1343641-A (GB)
Title: Mono-and dis-azo dyes containing dihydroxypyridine residues
IPC: C09B62/006
Filed: 1971-04-22
Abstract: 1343641 3 - Hydroxy - 5 - bromo - dihydropyrid-2-one CIBA-GEIGY AG 22 April 1971 [23 April 1970] 10822/71 Heading C2C [Also in Divisions C4-C5] 2,3 - Dihydroxy - 5 - bromo - pyridine is prepared by brominating furfurol and reacting the product with sulphamic acid.
Patent GB-243977-A (GB)
Title: Improvements in sheet feed mechanism for folding machines, printing machines and thelike
IPC: B65H9/16
Filed: 1925-04-27
Abstract: 243,977. Spiess, G. April 27, 1925. Sheet-separators; pile tables and supports; registering-devices.-In a sheet-feeding apparatus for printing, folding, and like machines, and of the kind wherein the sheets are fed continuously from an upper table 2, past a throat 4, over a lower table 5, and are advanced by combing- rollers 8 and feed-rollers 9, 10 to a forwarding- table 14 fitted with inclined feed-rollers 15 serving to keep the side edges of the sheet against a registering-bar 16, the tables 2, 5, and the sheetforwarding devices are mounted in a frame F which is adjustable transversely by means of a screw 12 and nut 11 relatively to the forwarding- table 14. The table 14 is integral with an under frame 1 fitted with rails 7 on which travel rollers 6 fitted to the frame F carrying the tables 2, 5, and associated feeding-devices. The rollers 6 move over the rails when the screw 12 is operated. The feeding-devices are driven in an adjustable manner either by a motor 17 fitted on the frame F and provided with a motor control, or by bevel gearing, two universal joints 20, 21, and a telescopic shaft 22 from a variable cone- and-belt drive 23, 25, Fig. 2. To enable the machine to be used for laying-on by hand, the frame F is mounted so that it can be lowered with the rails 7 to bring the upper table 2 level with the table 14. The frame F is either normally held in the position shown by links 29, 30, of which the links 30 are slightly the longer, and to lower the frame the pivot 31 of the links 30 is rotated by gearing from a hand-wheel 33, and the devices assume the position shown in Fig. 5, in which the table 2 is level with the table 14. In a modification, the devices are raised and lowered by geared screws of different pitch so as to have the required differential action.
Patent GB-109489-A (GB)
IPC: D01B1/12
Abstract: 109,489. F i b r e Corporation, and Michot, G. Sept. 20, 1916. Rippling-apparatus; grip-chains and like arrangements for feeding, holding, and conveying fibrous materials.-The flax &c. is held by the roots between travelling belts c, and the seeds are removed by forwardly projecting combs g arranged at an angle to their base-plates and secured upon upper and lower belts f<1> arranged at an angle less than a rightangle to the belts c. The feed belts, which may be positively driven, are supported by a series of small rollers, the upper series being mounted resiliently and adjustably. The inclination of the belts f<1> can be adjusted and screws m serve to adjust the tension. The belts f<1> are driven from the main shaft by a pulley k and gearing i on the shaft h. The feed belts are driven from the shaft h through a universal joint o and gearing l.
Patent GB-1404447-A (GB)
Title: Thread supply device for intermittent thread supply to textile machines
IPC: D04B15/48
Filed: 1974-03-12
Abstract: 1404447 Weft measuring drums IRO VISTAHOLM AB 12 March 1974 [13 March 1973] 11038/74 Heading D1E A weft measurer comprises a hollow shaft 4, through which the weft passes, which rotates the measuring drum 1 and a flyer 6 the drum having at one end, a swash plate 10 which moves the windings along the drum and, at the other end, a tapered flange 11 which is movable towards the swash plate 10 to open out the windings and to allow them to be pulled axially off the drum over the flyer ring 5 and through an eyelet 18. The flange 11 moves in axial grooves in the drum surface and is utilised to operate a switch 15 switching on and off an electromagnetic clutch connecting the driving motor 7 to the drum 1.
Patent GB-557202-A (GB)
Title: Improvements in and relating to rotary electric switches
IPC: H01H19/58
Filed: 1942-08-07
Abstract: 557,202. Mechanical switches without quick action. ROBERTS, G. N., and LONDON SOUND LABORATORIES, Ltd. Aug. 7, 1942, No. 11061. [Class 38 (v)] A rotary switch comprises a number of cooperating contact elements adapted to establish a number of circuits simultaneously, and cooperating contacts adapted selectively to include or connect an indicating instrument in any one of them. The parts of the switch are shown dislocated in the figure, the plates 1 bearing contacts 3 being normally parallel and spaced apart with the rotary element 2 bearing short-circuiting elements 5 rotatable in the centre, there being two contacts 7 not short circuited but connected by leads 8 to an ammeter &c. which can thus be put into circuit between any two of the co-operating contacts on the plates 1. The switch is mainly for use in testing thermionic valves while in operation.