baber/WOPTO huggingface dataset:
Patent GB-691072-A (GB)
Title: Improvements relating to vapour-electric discharge devices
Inventor: SMART DAVID LORIMER
IPC: H02M5/00
Filed: 1950-09-22
Abstract: 691,072. Frequency changing. ENGLISH ELECTRIC CO., Ltd. Sept. 21, 1951 [Sept. 22, 1950], No. 23299/50. Class 38 (ii). A frequency converter of the grid controlled gas-discharge tube type, in which the grid control potentials are derived during normal operation from the output circuit, is characterized in that means are provided to inject into the control grid circuit starting oscillations of approximately the same frequency as the normal output frequency. A single-phase load 11, such as the work coil of an induction heating apparatus, is supplied from a threephase source 10 by means of mercury vapour discharge tubes 41 ... 46 arranged in pairs and an output transformer 16. The cathodes of one of each pair of the tubes are connected together to supply the primary winding 40 of transformer 16, the control grids of the tubes being connected through individual resistors 21, grid transformer secondaries 22a or 22b and negative bias sources 23a or 23b to the respective cathode points. During normal operation grid potentials are derived from the output of the transformer 16 by way of a phaseshifting bridge 25 and the primary winding 24 of the grid transformer. At starting however, before oscillations appear in the output circuit, oscillations of approximately the frequency of the normal output frequency are injected into the grid circuit by way of a saturable transformer 26, 27, the oscillations being derived from a condenser 30 and inductance 28. The relay 29 causes the condenser to be alternately charged over the resistor 31 and discharged through the inductance 28 and primary winding 26 until oscillations have been established in the output circuit, after the relay will be continuously energized from the output over the rectifier bridge 35, thus removing the injected oscillations and substantially eliminating the impedance of the transformer 26, 27 from the grid transformer circuit. The Provisional Specification refers to a system supplied from a D.C. source.
Patent GB-240172-A (GB)
Title: Improvements in or relating to bumpers for vehicles
IPC: B60R19/14
Filed: 1925-09-18
Abstract: 240,172. Mulct, M. C. E. Sept. 19, 1924, [Convention date]. Collision-guards.-The end portions 2, 2', Fig. 1, of a bumper are connected to the central portion 1 by joints in such manner that the end portions may be displaced toward the front in the case of a front bumper and toward the rear in the case of a rear bumper bar when fouled by another vehicle. The hinge connection comprises a U-shaped piece 3 riveted at 4 to the centre part of the bar and let into a bifurcation in the end of a plunger 9, Fig. 4, to which it, and the end piece 2, are secured by a bolt 5. The end piece 2 is normally secured in the U-shaped piece 3 by nipples 6. The shock-absorbing elements each comprise a sleeve 12 integral with a bracket 13 by which the bumper bar is attached to the dumb irons of the vehicle, the sleeve 12 being slotted across the front to permit angular movement of the plunger 9 when' adjusting the height of the bumper bar. The end 11 of the member 9 fits in the sleeve 12 and has slotted side wings slidable on keys 27 formed on the end clamping plates 25, Figs. 4 and 5, and cylindrical segments 20', 20 are separated by springs 18 and bear against the cylindrical members 11, 12 respectively. The forward end of the plunger 9 may be formed with flanges 24 to fill the gap between the side and centre members. In a modification, the end portions may be adapted to be detached when struck by a vehicle in a direction contrary to that for which the bar is designed.
Patent GB-444240-A (GB)
Title: Improvements in position indicating devices applicable to wireless tuning members
IPC: H03J1/04
Filed: 1934-08-13
Abstract: 444,240. Adjusting wireless apparatus. REGENTONE, Ltd., Worton Road, Isleworth, Middlesex, and BROOKE, H. A., 10, Bassett Row, Southampton. Aug. 13, 1934, No. 23312. [Class 37] A device for indicating the position of the shaft of the tuning condensers of a wireless receiving set, comprises a fixed scale, an indicator strip extending parallel with the scale, the end of the strip forming an index co-operating with the scale, and means driven directly from the shaft of the tuning condensers for moving the strip longitudinally in accordance with the setting of the condensers. In one arrangement, Figs. 1 and 2, the indicating strip 3a forms a portion of an endless band 3, the strip 3a being of a different colour from the rest of the band. The strip is mounted between a slotted scale 2 and a back plate 1, and the band is actuated by a drum 6 secured to the shaft 7 of the timing condenser. In a modification, Fig. 3, a radio receiver is fitted with two scales 9 corresponding to long and short waves, one or other of the scales being illuminated by lamps controlled by the change-over switch. Indicator strips 11, slidably mounted between raised ribs 9a on the scale plates and back plates, are secured at their lower ends to an endless cord 13 passing round a drum 15 secured to the shaft 16 of the tuning condenser. On rotating the shaft to adjust the tuning of the receiver, one of the strips rises while the other falls.
Patent GB-824068-A (GB)
Title: Apparatus for uprooting bushes and the like
IPC: A01G23/06
Filed: 1957-07-23
Abstract: 824,068. Stump extracting attachments for tractors; gripping loads. HOLLEBONE, J. E. July 23, 1957, No. 23319/57. Classes 78 (3) and 78 (4). Tree stumps and the like are extracted from the ground by a device comprising a grab 6, 7, the pivot 5 of which is mounted in a member 4 slidably mounted in guides 3, 3a secured to bars 2 which are adapted to be raised and lowered by links 14a-14f and the tractor hydraulic lift system. The grab arm portions 7e, 6b are pivoted at 9 to links 10, 11 and slide member 4 is connected by a cable 14 to one arm of a bellcrank 22 pivoted to a bar 23 joining the ends of links 14a, the other arm of the bell crank being connected to a link 21 pivoted to the tractor at 20. With this arrangement forward movement of the tractor with the stump loosely engaged causes the grab to tighten its grip and pull out the stump. Initial upward movement of the bars 2 raises the stump clear of the ground for transport whilst further movement to the chainline position of Fig. 1 causes cable 14 to open the grab jaws 6a, 7a against the action of spring 8, thereby releasing the stump. An abutment device 15c is provided to engage the stump above the grab, thereby preventing the stump from tilting during extraction. Fig. 5 illustrates a supplementary jaw 16 for gripping small diameter stumps, this jaw being pivoted at 16a to 6 and having a pin-and-slot connection 16b, 16c therewith. The device may be mounted on a trailer or any other vehicle and the bars 2 may be raised manually.
Patent GB-834023-A (GB)
Title: Improvements in and relating to cots and play pens for children
IPC: A47D11/00
Filed: 1956-07-27
Abstract: 834,023. Cots; play-pens. WOODRUFF, M. J. Oct. 25, 1957 [July 27, 1956], No. 23341/56. Classes 52(1) and 52(2) The four sides of a cot are formed of sections 1...5 hinged together so that they can be folded flat and adapted to serve as a small play-pen when mattress spring 7 has been detached and legs 8 have been telescoped upwards on rods 9. Catches 12, 13 secure together end sections 1, 5 forming a long side. By arranging sections 1, 5 in alignment with sections 2, 4 and detachably fitting a further section 6 (which may be the spring 7) to the free ends of the former sections, a large play-pen is provided.
Patent GB-1525571-A (GB)
Title: Drive trains
IPC: F16H3/72
Filed: 1975-08-22
Abstract: 1525571 Driving arrangements for dynamoelectric machines HIGH TEMPERATURE ENGS Ltd 22 Aug 1975 [24 May 1974] 23393/74 Heading H2A [Also in Division F2] Two inputs of a differential device 10, e.g. of epicyclic or bevel gear type, are driven simultaneously through irreversible worm gears 8A, 8B by electric motors 3A, 3B, and the output of the differential drives a shaft 1, e.g. of a valve, through reduction gearing 11 ... 14 and a toothed sector 2, the arrangement being such that should one motor fail the shaft 1 is driven at half-speed by the other motor.
Patent GB-316583-A (GB)
IPC: C05B11/08
Filed: 1929-07-30
Abstract: 316,583. Holz, A. July 31, 1928, [Convention date]. Manures.-Rock phosphate is treated with sulphuric acid, preferably in slight excess, and after the removal of one-third of the calcium sulphate the mother liquor comprising a mixture of calcium sulphate and phosphoric acid is treated with ammonia at a pressure exceeding atmospheric, for example, 15 pounds per sq. inch, di-calcium phosphate being precipitated. The product may be dried to form a fertilizer containing di-calcium phosphate and ammonium sulphate.
Patent GB-220483-A (GB)
Title: Improvements in and relating to spring mattresses, upholstery work and the like
IPC: A47C23/053
Filed: 1923-09-19
Abstract: 220,483. Taylor, A., and Glasgow, Corporation of the City of. Sept. 19, 1928. Helical springs.-The top and bottom coils a of helical upholstery springs are, constructed of rectangular formation with rounded or angled corners g, b, as shown in the Figure.
Patent GB-459497-A (GB)
Title: Improvements relating to the manufacture of tipped cigarettes
IPC: A24C5/58
Filed: 1936-08-26
Abstract: 459,497. Coating webs. WILLS (AUSTRALIA), Ltd., W. D. & H. O., 7, Millbank; London. Aug. 26, 1936, No. 23441. Convention date, Dec. 23, 1935. [Class 140] [See also Group VI] In a machine for making tipped cigarettes, patches 16, Fig. 1, of tipping material are applied to a paper web 15 so that the edges 17 extend beyond the edge of the web. To ensure the sealing of the tips of the cigarettes, globules of liquid adhesive are presented in the path of the edges 17. The adhesive is forced by compressed air from a reservoir 25, Fig. 9, through a pipe 26 containing control valves 30, 31 to an adjustably mounted nozzle 23. The nozzle may supply the adhesive to the projecting edges 17 before the paper web passes beneath the tobacco feeding apparatus or adjacent the pasting wheel of a continuousrod machine.
Patent GB-1221299-A (GB)
Title: Electrolytic deposition of metallic materials
Inventor: GILES MAURICE ERIC
IPC: C25D1/00
Filed: 1967-05-19
Abstract: 1,221,299. Electro-depositing metals. NATIONAL RESEARCH DEVELOPMENT CORP. May 16, 1968 [May 19, 1967], No.23476/67. Heading C7B. In electro-forming a metallic deposit, metallic particles are initially added to the electrolyte and maintained dispersed therein by continuous agitation, confined wholly or predominantly to the anode region to re-act with discharged anions so that the electrolyte in the cathode region is kept free or nearly free of the particles, thus reducing the anode-cathode voltage for a given cathode current density. The concentration gradient for the particles may be achieved by interposing between the electrodes an electrolyte-permeable barrier impervious to the particles. Some particles may be initially incorporated in the electrolyte in the cathode region to form a deposit on the cathode by electrolytic and cataphoretic action. Fine particles reduced in size near the anode, which may reach the cathode region, may be removed by flowing electrolyte in the anode region. Electrolyte is preferably caused to flow over the cathode surface. The deposit may be compacted by rolling. The particles may be of the same or a different material from that deposited from the electrolyte so that a deposit is obtained which varies in composition through its thickness. For depositing Ni or Cu, the electrolyte may be a nickel fluoroborate solution of PH 3 at 60C. As shown, a suitable electrolytic cell 1 comprises a tubular Pt wire anode 15 within an annular recess 13 through which passes a separate flow of electrolyte containing Ni particles, preferably agitated by bubbling air (not shown), via ducts 19, 20 in a tubular insulating member 6 and tubes 21, 22 passing through an annular cover part 4, the recess being separated from the remaining space within the cell by an electrolyte-permeable tubular membrane 14 of porous PVC, and a Cu former 8, on which Ni is electro-deposited to form an article, removably supported between an insulating member 9 and rod 10 in spaced relationship with the membrane 14 to allow electrolyte 17 to flow continuously therebetween from an inlet 2 to an outlet 3 via channels 18 in the member 9.
Patent GB-1303389-A (GB)
IPC: C25B1/24
Filed: 1971-04-19
Abstract: 1303389 Producing fluorine electrolytically SCC DES USINES CHIMIQUES DE PIERRELATTE 19 April 1971 [12 March 1970] 23513/71 Heading C7B Fluorine containing less than 6% by volume of HF is produced by electrolyzing an anhydrous NH 3  and HF mixture fed with HF to maintain the NH 3  content of the bath between 17À5% and 20À5% by weight (corresponding to NH 4 F, 3-2À3 HF molar) at between 0 and 50‹C. and at least 6 volts in the absence of air. A quarter or less of the total molar NH 4 F content may be replaced mole for mole by at least one alkali metal fluoride; e.g. the HF bath may contain by weight 14% NH 3  and 15% KF. Electrolysis may be effected in a water cooled double-walled steel tank having a central C anode separated from 2 steel cathodes by diaphragms of "Monel" (Registered Trade Mark) metal wire grid.
Patent GB-301570-A (GB)
Title: An improved device for raising and lowering window sashes
IPC: E05F11/38
Filed: 1927-09-08
Abstract: 301,570. McDougall, C. S. Sept. 8, 1927. Sash lifts.-A sash lift consists of a metal bar c composed of abutting interfitting sections suitably recessed at intervals and affixed vertically by screws along the inner surface of the vertical sash members, particularly the upper sash. The parts of the bar are joined by plug and socket ends a<1>, a<2> formed on the sections. The sections tray be formed by stamping and may have rounded convex and concave surfaces e, d at the ends to facilitate dusting. The meeting rail of the lower sash may be notched through its bevelled face and a cover or a block fixed to the upper sash may be provided to prevent draught through this opening. The bar may be sunk in a groove in the sash.
Patent GB-429171-A (GB)
Title: Improvements in and relating to rotary air or gas compressors
IPC: F04C18/12
Filed: 1933-08-25
Abstract: 429,171. Rotary compressors. NORTHEY, A. J., Rilston, Springfield Road, Parkstone, Dorset. Aug. 25, 1933, Nos. 23705 and 26884. [Class 110 (ii)] A rotary compressor comprises two rotors b geared together, each having a piston p and a recess s. Fluid is drawn in through a non-return valve j, past a spring-loaded disc q, and is delivered by way of a similar valve to a conduit m. The casing may have a cooling jacket. In a modified arrangement the valves are dispensed with, arcuate ports being provided in the side walls within the boundary of the rotors. These ports open into the working chambers through the recesses s. Fig. 5 shows a compressor a which delivers fluid to a container z through a non-return valve 4. A byepass valve 2, under control of a spring and the pressure in the container may allow fluid to pass from the delivery m to the suction side 1. The apparatus may act as a pump, or an engine. Specification 394,029 is referred to.
Patent GB-1185086-A (GB)
Title: Method for Operating an Oxygen Top-Blowing Converter
IPC: C21C5/30
Filed: 1967-05-23
Abstract: 1,185,086. Qxygen-steelmaking YAWATA IRON & STEEL CO. Ltd. May 23, 1967 [May 23, 19661, No.23811/67. Heading C7D. Determination of the end-point in a converter process is effected by measuring the rate of flow of the evolved gases during the final stage of refining e. g. the final third of the refining period, and from this determining the residual carbon content of the bath from a relationship between these variables which is predetermined for a particular converter and operating conditions, and which is independent of the initial carbon content of the bath. To obtain a more accurate measurement of gas flow, a known volume of inert gas may be introduced into the hood when the evolved gas flow diminishes.
Patent GB-366908-A (GB)
Title: Process for the smelting of pulverulent oxide iron ores
IPC: C22B1/24
Filed: 1930-08-08
Abstract: Pulverulent iron oxide ore is mixed with a hydraulic binding agent, e.g. cement, and water and then granulated by means of a screw or drum.  The granules are dried at about 100 DEG  C. before introduction into the blast furnace.
Patent GB-1434505-A (GB)
Title: Remote control latch release mechanism
IPC: B60R25/01
Filed: 1974-05-30
Abstract: 1434505 Latch operating mechanisms FORD MOTOR CO Ltd 30 May 1974 [21 June 1973] 23911/74 Heading E2A A remote control, latch release mechanism, e.g. of a motor-vehicle engine compartment closure, comprises a handle assembly 26 slidably journalled in support means 34, 35 and having cable coupler means 33, a pair of cables 24, 43 connected to the coupler means for coordinated movement by the handle assembly in a latch releasing direction, one of the cables 24 being connected to the release lever 22 of a latch mechanism 21 located remotely from the handle assembly and the other cable 43 being coupled to a locking device 27, 48, Figs. 1 and 3, operable to hold the cable 43 against movement in the latch releasing direction and thereby the handle assembly against latch releasing actuation, and disabling means rendering the handle assembly inoperative against latch releasing actuation upon the cable 43 being severed between the coupler means and the locking device. As shown, the disabling means comprises a slide plunger 45 housed within the coupler means 33 and coupled to the latter by a pawl 58, a spring 47 operable to retract the cable 43 and to move the slide plunger relative to the pawl, and co-acting cam means 65 and 66 on the slide plunger and pawl. The locking device comprises a guide 48 in which the cable 43 is received, the cable having an abutment 51 and blocking means, i.e. an ignition switch activation rod 27, slidable in the guide and shifted into abutting relation with the abutment 51 by operation of a key-operated means 16. Normally, the tab 57 on the rod 27 is in abutting relation with the abutment 51 on the cable 43 and the pawl 58 has interlocking engagement with the slide plunger 45 and, to actuate the latch mechanism 21, the key cylinder of the lock 16 is turned to a position other than the ignition locked position thereby moving the tab 57 out of the path of the abutment 51 so that the handle 31 can be pulled the movement thereof being transmitted to the coupler means 33 which is retracted together with the cable 24 to release the latch mechanism. If the cable 43 is cut, the spring 47 forces the slide plunger 45 into the position shown in Fig. 6 wherein the cam surface 65 of the plunger co-acts with the cam surface 66 of the pawl 58 to lift the latter to a position in which an abutment surface 67 on the pawl is aligned with an edge 68 of either of recesses 69 in the housing part 35; this prevents retraction of the coupler means 33. The plunger 45 drops on to an inclined surface 71 in the coupler means and the forward edge thereof abuts an edge 72 to prevent the slide plunger being moved to the right as seen in Fig. 6 should an attempt be made to grasp the severed end of the cable 43.
Patent GB-844446-A (GB)
Title: Improvements in foundation garments
Inventor: GOULD BARBARA VENNING
IPC: A41C1/00
Filed: 1956-08-03
Abstract: 844,446. Corsets. FAMONS FIT Inc. Aug. 3, 1956, No. 23991/56. Class 141 A girdle comprises two panels 10, 11 secured together at the front and back, preferably in overlapping relation, by zig-zag stitching 12, and is prevented from riding up by leg-pieces 20, 21 secured to the panels along the lines 24, 25. A crotch-piece 27, open at the rear, may be provided. The panels 10, 11 and leg-pieces 20, 21 may be wholly elastic or partly elastic and partly inelastic. Suspenders may be attached at the points 29.
Patent GB-668459-A (GB)
Title: Improvements in or relating to a grinding wheel dressing mechanism
IPC: B24B53/12
Filed: 1948-03-19
Abstract: 668,459. Trueing grinding-wheels. BRUCE, S. P. March 19, 1948 [April 29, 1947], No. 24020/50. Divided out of 668,367. Drawings to Specification. Class 60. The subject-matter of this Specification is substantially the same as that in Specification 668,367; but the mechanism for indexing the trueing element is claimed broadly.
Patent GB-928362-A (GB)
Title: Means for stimulating the flow of fluids in animal bodies
IPC: A61H23/04
Filed: 1961-07-04
Abstract: 928,362. Applying pressure to the body. W. C. BLATCHFORD. (Jobst Institute Inc.); July 4, 1961, No. 24086/61. Class 81 (2). Apparatus for applying pressure to a body portion comprises an envlope fitting about the body portion, means for alternately contracting and releasing the envelope in successive uniformly timed cycles and means for timing within the cycles periods of contraction at one rate and periods of release at a second independent rate. A sleeve A secured around a limb by lacing C is alternately tightened and loosened, to apply an intermittent pressure on the limb, by the alternate inflation and collapse of tubes D which extend longitudinally of the sleeve in pockets E. The tubes are connected by a T-fitting M<SP>1</SP> with a pump chamber I and a valve casing N which houses an adjustable ball check positive pressure relief valve and a ball check air inlet valve. The pressure in the pump chamber and the tubes D is cyclically increased and decreased by displacement of a diaphragm I<SP>1</SP> in the pump chamber. This is effected by a rod J which is secured to the diaphragm at one end and carries a cam follower K<SP>1</SP> at the other end, a cam K being rotated by an electric motor G through reduction gearing H and being so shaped that it causes the desired reciprocation of the rod J.
Patent GB-453309-A (GB)
Title: Split piston-rings
IPC: F16J9/02
Filed: 1935-08-29
Abstract: 453,309. Piston-rings. W.P. (LYMING- TON), Ltd., and HOWLETT, J. W., Radial Works, Stanford Road, Lymington, Hampshire. Aug. 29, 1935, No. 24142. [Class 122 (i)] A split piston-ring 11 is of full axial depth at its outer periphery in the vicinity of the split and elsewhere has the metal removed from an edge of the outer periphery to a varying extent. The metal is removed in a radial direction, and is a maximum at 14 near the split, and a minimum at 15 opposite the split. The cut-away portion 12 is remote from the piston head. The cross-section of the ring may be L-shaped, Fig. 2, or of triangular or trapezoidal form.