baber/WOPTO huggingface dataset:
Patent GB-1025781-A (GB)
Title: Improvements relating to wheeled agricultural vehicles for soil cultivation
Inventor: HAMBLIN HENRY JOEL
IPC: A01B3/14
Filed: 1961-07-11
Abstract: 1,025,781. Agricultural implements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 11, 1962 [July 11, 1961], No. 25108/61. Heading A1B. A wheeled agricultural implement comprises a tool-bar which is pivotally mounted so as to capable of swinging movement about a pivoted axis parallel to its length and spaced from it, and which is raised and lowered by a lever mechanism which is arranged to take up over-centre positions at both ends of its stroke in which it holds the tool-bar in a working position or a raised position. As shown the tool-bar 10 is fixed to a frame 13, 15 which is pivoted about the axis of land-wheels 14 and is moved by a lever 29. A removable tow-bar 19 is provided which may be fixed in an offset position. In a modification an auxilliary tool-bar is provided which can be moved laterally for row-crop work.
Patent GB-842429-A (GB)
Title: Key case
IPC: F16K7/18
Filed: 1958-08-06
Abstract: 842,429. Key-holders. BUXTON Inc. Aug. 6, 1958 [Jan. 24, 1958], No. 25159/58. Class 44. A key case comprises two substantially rigid tray-shaped members 1, 2 hinged together along one side edge for swinging movement towards and from each other and forming a chamber between them when swung into closed relation, corresponding end walls of the members being formed with notches 7 positioned to mate with each other when the case is closed, an elongated key loop support 26 fixed to the inner face of one of the members parallel to and closely adjacent the notch 7 in the end wall thereof, a plurality of key-receiving loops 30 pivotally connected in spaced relation along the support 26 for selective swinging movement to and from the case, the notches being of sufficient depth to permit the case to be closed with one or more loops extending outwardly of the case through the opening formed by the notches, the support 26 substantially closing the opening when the case is closed. As shown, each member 1, 2 comprises a rigid member 4, preferably of metal and is cut away to form an opening 5 which is closed by a sheet 9 of plastic material. A sheet 10 of material such as polyeurethene foam, is superposed on the sheet 9 and the whole is covered with leather or decorative material, the edges of which extend over and are secured to the inner surface of the tray. A lining 28 of leather or other material covers the inner faces of the members 1, 2 the inturned edges of the covering, and the hinge and attachment 27 of the holder 26. The case is fastened by means of a spring catch 19 or is releasably held in both closed and open position by a bow spring, Figs. 6 and 7 (not shown). Specification 729,900 is referred to.
Patent GB-321492-A (GB)
Title: Improvements in and relating to devices adapted to utilise wind power
IPC: H02P9/00
Filed: 1928-09-01
Abstract: 321,492. Cowan, E., W. L. Sept. 1, 1928. Dynamos, regulating; driving-arrangements.- A wind-driven generator is provided with a single field and two separate armatures and means for automatically connecting the armatures in series and parallel when the wind velocity is low and high respectively. Means may also be provided for controlling the field current and as an alternative to the series-parallel arrangement of two similar armature windings, two armature windings having different speed-volt characteristics and a common field may be employed. Or two separate dynamos with different speed-volt characteristics and a common or separate field, may be used. In these cases, the series -parallel switch which is used with the first-named arrangement is replaced by a selecting device operated by the output current to switch the load from one armature to the other. In the form shown, the two armature windings 3, 4 are brought out to the bus-bars 10, 7 across which the field coil 5 is connected in series with a rheostat SR. By means of a switch M, comprising a rocking-arm and mercury cups, the contacts M<1>, M<3> and M<2>, M<4> may be closed to parallel the armatures or the contacts M<5>, M' and M<6>, M<8> to connect the armatures in series. The switch is actuated by a magnet coil 17<a> energized from a low-voltage generator 23 connected to the main shaft, which machine also energizes the moving coil 24 of the field rheostat SR. This may comprise a number of mercury cups tapped to the resistance and an arm carrying a knife edge which makes contact with the mercury meniscus. An anti-flashing resistance 5a is connected across the field coils 5 and a resistance S is provided for doubling the range of the field regulator SR. The armatures are normally connected in series and as the wind velocity rises the increasing volts of the machine 23 cause the regulator SR to reduce the field current. At a limiting velocity, the switch M changes over to parallel connection and the field resistance is cut out, the resistance S being at the same time inserted in series with the operating coil 24. Further increase of velocity inserts field resistance until at a higher limit, when the velocity is dangerous, an overload coil a across the bus-bars causes the wind motor to shut down. As the wind falls, the sequence of connections is reversed. The arrangement shown includes a battery-charging system with the usual cut-out 28 for switching on when the requisite voltage is available.
Patent GB-845914-A (GB)
Title: An automatic flaw indicator by means of the ultrasonic pulse-echo system
IPC: G01N29/34
Filed: 1957-08-09
Abstract: 845,914. Ultrasonic flaw detection apparatus. CHIRANA PRAHA NARODNI PODNIK and OBRANZ, J. Aug. 9, 1957 [Aug. 16, 1956], No. 25185/57. Class 40(7). Known pulse-echo flaw detection apparatus including a deflexion-modulated cathode-ray (C.R.) tube indicator is supplemented by a system comprising adjustable-width rectangular pulse generators 5, 8, differentiating circuits 6, 9 and mixers 7, 10 whereby (i) the indication on C.R. tube 13 appears as depicted in Fig. 2g wherein pulses C, F mark the depth region U to be examined of the article 3 under test and (ii) the output to unit 11 is of the form of Fig. 2f whose response level y (beyond which level a bulb 12 is energized or a mechanical device 14 causes the article to be ejected or marked as faulty) is adjustable; unit 11 may be a thyratron with a negative bias y. Thus flaws in regions to be machined off later are excluded.
Patent GB-1157555-A (GB)
Title: Improvements in or relating to Target Practice Rounds.
IPC: F42B8/16
Filed: 1967-06-01
Abstract: 1,157,555. Disintegrating practice projectiles. RHEINMETALL G.m.b.H. 1 June, 1967 [29 Sept., 1966], No. 25245/67. Heading F3A. A projectile for target practice ammunition which corresponds in size, shape and weight to the projectile of a corresponding live round but which disintegrates on discharge from the muzzle of a weapon leaving a subsidiary subcalibre projectile to continue its flight, comprises a thin walled case 1 having lines of weakness 4 and a filling 10, 11, of moulded or pressed heavy material held in place by a base member 5, and being provided at its forward end with a short range subsidiary sub-calibre projectile 14, the seating for which keeps the subsidiary projectile centred until it has left the muzzle of the weapon. The base 5 has a hollow shank 6 provided with longitudinal lines of weakness and is fixed in the case 1 by threads 6a or transverse corrugations. The seating for the subsidiary projectile may be provided by several segments 13 having pincerlike jaws 13a which project out of the case 1 and are kept closed by resilient arms 13b bearing against the inside wall of the case and abutting a strengthening element 8. The case 1 and segments 13 are made of light alloy. When the weapon is fired the full calibre section 2 of the case is expanded under the effect of the inertia forces developed by the filling and is pressed firmly against the barrel wall to provide a gas check. On the projectile leaving the muzzle the same forces split the shank 6 and case 1 along the lines of weakness.
Patent GB-751576-A (GB)
Title: A control means for repeatedly actuating a member cyclically to different predetermined extents
Inventor: LEWORTHY JOHN HARWOOD
IPC: G05G21/00
Filed: 1954-09-02
Abstract: 751,576. Cam mechanism. ROTHERHAM & SONS, Ltd. Sept. 2, 1954, No. 25479/54. Class 80(3) [Also in Group XXIX] Cam mechanism for operating a member such as a gas valve in accordance with a predetermined cycle comprises a series of cam plates 14 of differing contours arranged side by side on a chronometrically driven shaft 13 and co-acting successively with a follower 16 on a pivoted lever 10 coupled by a link A to the member to be actuated. The follower 16 is carried on a member 18 which is slidable transversely to the lever 10 on a rod 26 connecting side plates 19, 20 secured to the lever. This movement of follower 16 is controlled by a stepped cam 30 acting upon a rod 28 secured to the member 18. The cam 30 has radial fingers 40 projecting into the path of a striker 41 on the cam plates 14 so that'on each revolution of cam plates 14 the cam 30 is stepped to move follower 16 against the action of a spring 29 from one cam plate 14 to the next. The follower 16 is simultaneously and momentarily lifted off the plates 14 by a projection 44 on the plates engaging a projection on the side plate 19 of lever 10. After the last cam plate 14 has engaged follower 16 the rod 28 drops down a steep step 31 of the cam 30 under the action of spring 29 to return the follower to its starting position ready for the cycle to be repeated. The cam plates 14 may be seven in number, one for each day of the week for a weekly control cycle of a gas supply valve.
Patent GB-802241-A (GB)
Title: Improvements in or relating to adjustable fittings and supports for scaffolding
IPC: E04G7/02
Filed: 1952-10-13
Abstract: 802,241. Scaffolding. HIGGS & HILL, Ltd., and HARRISON, J. P. Dec. 31, 1954 [Oct. 13, 1952], No. 25572/52. Class 20(2) In scaffolding, a beam is supported in a cradle 13 on a vertically adjustable screw-threaded stem 2 carried in apertures in an H-section bracket 3 clamped to a scaffold tube 1. One flange of the bracket is slotted to engage the scaffold tube and the stem 2 is adjusted against a lower flange of this section by a nut 14.
Patent GB-1452839-A (GB)
Title: Windshield wiper
IPC: B60S1/38
Filed: 1974-01-09
Abstract: 1452839 Windscreen wipers ANDERSON CO 9 Jan 1974 [1 Feb 1973] 25615/75 Divided out of 1452838 Heading A4F The subject matter of this Specification is identical with that of Specification 1452838 but the claims relate to a windscreen wiper blade comprising a wiping element having grooves at each side defined by a neck portion between an intermediate portion and a rear retention bead, and a backing member including spaced apart planar portions having edges facing inwardly for seating in the grooves, the retention bead having a gap therein whereby the backing member may be assembled with and removed from the wiping element by threading the planar portions through the gap.
Patent GB-1412512-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1973-05-30
Abstract: 1412512 Electronic watches SUWA SEIKOSHA KK 30 May 1973 [19 June 1972]  25662/73 Heading G3T In an electronic timepiece having a digital display 5, Fig. 2, controlled by an oscillator via a divider and distributer circuit, and switches 6, 7 for setting the hours and minutes, operation of a further switch 8 sets the seconds display only to zero, counting and indication of seconds then continuing automatically from zero. Fig. 5 shows a divider and distributer circuit 2 receiving an input 28 from a quartz crystal oscillator and having a divider 9 to produce a 1 Hz signal. Subsequent dividers 10-12 produce a once-perminute signal at 26, dividers 13, 14 produce a once-per-hour signal, and divider 15 a once-perhalf-day signal. The signals are distributed to the display by circuits 16-18. Switches 23, 24 may be operated to advance the minutes and hours via pulse-shaping circuits 20, 21. Operation of switch 22 sets dividers 9-12 and thus the seconds display to zero, via shaper circuit 19. If the displayed number of seconds is above thirty at that instant, the minutes are automatically advanced by one Fig. 4 (not shown).
Patent GB-318154-A (GB)
Title: Improvements in and relating to electrodes for electrolytic purposes
IPC: C25B1/28
Filed: 1929-08-23
Abstract: 318,154. Naamlooze Vennootschap Electro-Chemische, Industrie. Aug. 23, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 29, 1929]. Per-salts, obtaining; electrodes. - In the preparation of per-salts by anodic oxidation in an undivided cell, cathodes are employed consisting of alloys of which one or more of the component metals decompose the electrolyte catalytically when used alone, the alloy having no such catalytic action. The cathode may consist of an alloy of two or more catalytically active metals or of one of these metals with a non-catalytic but corrodible metal. Examples of catalytic metals are platinum, gold, and chromium in acid solutions, and silver, nickel, and iron in neutral or alkaline solutions; examples of non-catalytic but corrodible metals are silver, nickel, copper, and iron in acid solutions, and aluminium, zinc, and tin in neutral or alkaline solutions. Polishing of the cathodes is not necessary. In examples (1) a saturated solution of potassium carbonates is electrolyzed at a temperature not over 0‹ C. using an anode of platinum and a cathode of V-2a steel containing 0.25 per cent carbon, 20 per cent chromium, 7 per cent, nickel and the remainder iron, or alternatively a cathode containing 67 per cent nickel and 33 per cent tin. A current density of 1 amp. per sq. cm. at 8 volts is employed. Potassium percarbonate is precipitated. (2) A solution nearly saturated with ammonium phosphate with additions of fluoride and ammonium chromate is electrolyzed at 0‹ C. with a platinum anode and a cathode containing 91 per cent silver and 9 per cent aluminium at a current density of 0.01 amps. per sq. cm. Ammonium perphosphate is produced. (3) A saturated solution of sodium carbonate and borax is electrolyzed at 0‹ C. with a platinum anode and a cathode of V-2a steel. A current density of 0.2 amps. per sq. cm. at the anode and 1 amp. per sq. cm. at the cathode at 8 volts is employed. Sodium perborate is precipitated.
Patent GB-151980-A (GB)
Title: Improvements in chucks
IPC: B23B31/163
Filed: 1920-09-07
Abstract: 151,980. Potter, J. C. Oct. 2, 1919, [Convention date]. Chucks; turning.-Means are provided for preventing the operation of driving means such as the clutch 16 to couple the chuck 12 to its driving gear by shifting the hand lever 18 unless means such as a sliding shaft 23 carrying parts of the chuck jaw operating gear are shifted to disengage the operating wheel 19. As shown in Fig. 1, a rod 33, coupled to the lever 18, prevents the operation of the lever 18 unless the shaft 23 is shifted by means of the knob 32, to disengage the bevel gears 28 and bring the recess 34 in the shaft opposite the rod 33, which can then be shifted. The chuck 12 is shown as of the scroll type with jaw-operating gear comprising bevel and other wheels 30, 28, 27 to couple it to an operating wheel 19.
Patent GB-241573-A (GB)
Title: Improvements in steam boilers
IPC: F23C99/00
Filed: 1925-10-15
Abstract: 241,573. Kohlenscheidungs-Ges. Oct. 15, 1924, [Convention date]. Pulverulent-fuel furnaces; cooling.-In boiler furnaces of the kind having steeply-inclined water tubes arranged like a gable roof above the exit from the combustion chamber for pulverulent fuel the downwardly-directed burners are fitted at the ends of the combustion chamber in a line at right angles to the axes of the boiler drums which axes are in the direction of the length of the combustion chamber. Protective water tubes directly connected with the boiler drums are arranged on the sides of the combustion chamber. The boiler comprises three upper drums a and two lower drums b connected by steeply-inclined tubes d forming the roof of the combustion chamber e, and by vertical downcomer tubes c. Across the ash hoppers f at the bottom of the combustion chamber extend cooling tubes g connected with headers h, i the headers i being connected with the outside upper drums a by pipes k which at their upper portions join the nests of tubes c. The headers h are connected with the lower drums b by tubes m forming a protective covering for the walls l of the combustion chamber. The burners n are arranged at each end of the combustion chamber at right angles to the axes of the boiler drums, additional air for combustion being introduced through openings in the end walls. Baffle plates q within the drums b cause the water rising from the tubes m to be directed into the tubes d. An air preheater is arranged on one side of the furnace.
Patent GB-1193634-A (GB)
Title: A Device for Flexing an Arm Prosthesis or an Arm Splint.
Inventor: COLLINS DENNIS WILLIAM
IPC: A61F2/58
Filed: 1966-06-10
Abstract: 1,193,634. Artificial arms; splints; exercising device. HUGH STEEPER Ltd. 9 June, 1967 [10 June, 1966], No. 25954/66. Headings A5R and A6M. A device for flexing a natural or prosthetic arm at the elbow comprises a cylinder 1A-1C fixed to the upper part 15 of an arm splint or prosthetic arm and a sleeve 4 closed at one end fitted over the cylinder and attached to the forearm part 16, a gas storage flask 18 within the cylinder being connected to the space 4A within the sleeve, so that when the space receives gas from the flask the sleeve slides on the cylinder and pivots the forearm part 16 relative to the upper arm part 15. A wire 8 attached at a point 9 to the sleeve extends over a pulley 10 on the upper arm part 15 and along a groove in a quadrant 11 which is fixed to the forearm part, the wire being fixed at the other end to the quadrant at a pont 8A. Movement of the point 9 by the sleeve moves the quadrant and the forearm part about an elbow pivot 17. When pressure in the sleeve is released the forearm drops under its own weight so that the point 9 and the sleeve 4 return to their starting positions.
Patent GB-173021-A (GB)
Title: New or improved manufacture of reinforced sheets, webs, plates or the like
IPC: D06N3/02
Filed: 1920-09-09
Abstract: Cellulose ethers, such as ethyl or benzyl cellulose, are melted at a temperature of 180-200 DEG  C. in order to incorporate them with fabric.
Patent GB-1188254-A (GB)
Title: Improvements in or relating to Mineral Winning Ploughs
IPC: E21C27/32
Filed: 1968-05-30
Abstract: 1,188,254. Ploughs. GEWERKSCHAFT EISENHUTTE WESTFALIA. 30 May, 1968 [9 March, 1968], No. 26011/68. Heading E1F. A plough comprises face cutter tools 2, 3, adjustable means to limit the depth of cut of the tools, and a floor-level cutter 11 which is movable about a spindle 17 between a working position, determined by an adjustable stop  formed by a lever 16, and a rest position. The tools 2, 3 are movable about axes 4, 5, and are mounted on an element 1 which extends beneath a longwall conveyor. The cutter 11 is secured to an arcuate member 12 having a T- shaped part 13 guided by guides 14a, 14b which are secured to a member 7 forming a ramp 9 leading to the conveyor. The lever 16 pivots about the spindle 17 and is secured in selected positions by a bolt 22, the spindle 17 being disposed in a structure 24 which has mounted thereon a transversely adjustable block 25 acting as the cutting depth limiter for the tools 2, 3. In operation the cutter 11 cuts into the floor to a depth permitted by the lever 16. When the plough is reversed the cutter 11 is moved upwardly, and a stop 30 may be provided to limit this movement.
Patent GB-1124841-A (GB)
Title: A porous mass and a container therefor
Inventor: TAYLOR LESLIE GEORGE
IPC: B01D39/20
Filed: 1966-06-10
Abstract: A porous mass for use as an absorbent for liquefied gas comprises a mixture of cement, kieselguhr and asbestos, preferably in amounts 15-55%, 10-70% and 10-40% by weight, with water in amount 2.5 to 5 times the combined weight of the solids.  The solid components may be mixed with water, the mixture allowed to set and the moisture driven off by gentle heat.  The cement may be Portland, aluminous or pozzolanic.
Patent GB-338888-A (GB)
Title: A pneumatic control device for automatic fire-arms
IPC: F41A3/94
Filed: 1929-08-27
Abstract: 338,888. Armamenti Militari Soc. Anon. June 6, 1929, [Convention date]. Breech actions, sliding breech-block.-Relates to a pneumatic control device for automatic firearms of the type in which the breech-bolt compresses air to damp the recoil movement, and consists in the provision of means for annulling the damping effect at the beginning and end of both the recoil and return strokes of the breechbolt. In the construction shown, the breech chamber 1 is closed at the rear end by a cap 4. A rod 9 integral with the breech-bolt 3 extends through the cap 4 and has grooves 11, 12 by means of which the air in the chamber is put in communication with the atmosphere at each end of its travel. During the opening movement of the breech-bolt, the air in the chamber 1 remains at atmospheric pressure until the groove 11 passes out of the cylinder. The air is then compressed until, near the end of the stroke, the chamber is again opened to atmospheric pressure through the groove 12. The return movement is effected by a spring 6 and is retarded by the reduction of pressure which takes place in the chamber. In a modification, the rod 9 is replaced by a spring-controlled valve in the cap 4, which valve is actuated by the recoiling breechbolt, and an air escape hole is also provided in the side of the chamber slightly to the rear of the breech-bolt when in its foremost position. In a further modification, a hole is provided in the side of the chamber and the breech-bolt has an axial hole entering it from the rear with a lateral forward outlet which comes opposite the hole in the breech chamber near the end of the recoil movement. An additional adjustable port may be provided in the wall of the breech chamber or in the cap 4, by means of which the braking effect of the air can be regulated to produce various firing speeds. Automatic firing is effected at the end of the closing movement by the tail of a striker pivoted in the breech-bolt contacting with a stop in the wall of the breech chamber.