baber/WOPTO huggingface dataset:
Patent GB-1511843-A (GB)
Title: Liquid pressure systems
IPC: G05D16/10
Filed: 1975-04-22
Abstract: 1511843 Fluid-pressure servomotor systems METAQUIP Ltd 22 April 1975 [11 April 1974] 16378/74 Heading G3P [Also in Division F2]  A valve for use in a high-pressure spray gun system comprises a pressure relief valve and a "back pressure" regulator to control the pressure on the low-pressure side of the relief valve to ensure that the latter is held open once it has been operated. Pressure from an inlet 2 acts on a piston 7 forming the valve-member of the relief valve. Before the valve has opened pressure acts on the differential area between a larger diameter part 8 and a smaller diameter part 10 but once the latter part has withdrawn from its bore 4 pressure acts over the total end surface area as well. The back pressure regulator has a pointed-end plunger 24 with a V-section groove 34, fitting loosely in a bore 21, controlling flow from the downstream side of the relief valve to an outlet 31. The plunger has a flange 25 acted on by an adjustable loading spring 26. Because of the loose-fit the plunger is balanced with respect to static fluid-pressure and the dynamic fluid-pressure on the inlet side is balanced by the spring reaction, which is adjusted to maintain the back pressure on the relief valve piston 7 at the valve necessary to keep it open.
Patent GB-273295-A (GB)
Title: Improvements in conduit fittings
IPC: H02G3/06
Filed: 1927-06-21
Abstract: 273,295. Hutchins, I. E., and Ellson, E. W. June 28, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ceiling, wall, and other fittings for installation connections.-Conduit tubes 13, for electric wiring &c., having burred ends 16 are connected by a fitting 2, Fig. 1, which is divided longitudinally into two parts and provided with internal annular grooves 14 near the openings 12 thereof to receive said external burrs 16. The two halves of the fitting are clamped together by screws 8 which pass through lugs 7 thereon. In connecting such a tube to a junction box 19, Fig. 6, the fitting is provided with an external groove 28 to coact with the opening in the box, insertion of said fittings being facilitated by shearing off the inner ends 26, 27 of the two parts 5, 6 as shown.
Patent GB-1058001-A (GB)
Title: Variable focal length objective
Inventor: BABUSHKIN SVJATOSLAV GRIGORJEV
IPC: G02B15/14
Filed: 1964-04-21
Abstract: 1,058,001. Variable focal length objectives. LENINGRADSKOJE OBJEDINENIJE OPTIKOMEKHAN-ICHESKIKH PREDPRIJATY. April 21, 1964, No.16448/64. Heading G2I. A variable focal length objective comprises a casing 19 which houses a movable mount 8 and a fixed mount 1, each of which mounts carries a group of optical components, the mounts being fitted together in such a way that the optical components of both mounts alternate in a given sequence while their optical axes coincide to form the optical axis of the objective, the section of the outer surface of at least one of the mounts which contacts the casing 19 having an angular dimension not greater than 180 degrees with respect to the optical axis of the objective. The fixed mount 1 is provided with seatings 2, 3, 4 for optical components 5, 6, 7 while the movable mount 8 is formed with seatings 9, 10 for optical components 11, 12. The two mounts are assembled, in a direction at right angles to the optical axis, and their outer surfaces form a cylinder. The relative axial positions of the two mounts are varied by means of a pin screwed to the mount 8 through a slot 21 in the cylindrical casing 19.
Patent GB-704895-A (GB)
Title: Improvements in gramophone pick-ups
IPC: H04R11/08
Filed: 1951-07-11
Abstract: 704,895. Gramophone pick-ups. COLLARO, Ltd., COLLARO, C., and GUBSON, J. B. May 27, 1952 [July 11. 1951], No. 16457/51. Class 40 (4) [Also in Group XXXVIII]  The armature of a magnetic pick-up is formed from a rod bent at right angles to provide two limbs 20, 21, limb 20 being mounted vertically for part rotary reciprocation while limb 21 passes through a coil 14 and has a flattened free end disposed between permanent-magnet pole pieces 24. The vertical limb 20 passes through a resilient sleeve 22 of rubber or polyvinyl chloride which is supported between a channelled side plate 16 and a coil former 23. The free end of the armature engages and is centralized by a rubber diaphragm 25 which is clamped between the pole pieces and the coil former. The assembly is enclosed by side plates 15, 16 and constitutes a pick-up unit 11 which is pivotally mounted on spindles 17, 18 in a hollow pick-up head 10 (see Group XXXVIII) so that either of two styli carried by the limb 20, Fig. 1 (not shown) may be brought into an operative position. In a modification, the diaphragm 25 may be fitted against the outer surface of the pole pieces, or the armature may be 'centralized by a resilient spring or wire.
Patent GB-461407-A (GB)
Title: Improvements in or relating to disappearing seats
IPC: B60N2/16
Filed: 1936-06-12
Abstract: 461,407. Vehicle seating-arrangements. KEMP, G. B. June 12, 1936, No. 16469. [Class 103 (ii)] [Also in Group XIV] A seat arrangement for vehicles comprises two seats side by side in which one seat is adapted to be raised slightly without lateral displacement so as to allow the other to move underneath it. The two seats, 2, 3, are normally side by side, and the seat 2 is lifted by links 8, 9, operated from a hand lever 12 through bell-crank levers 10 and a link 11, and is constrained to rise upwardly and forwardly by a guide rod 15 passing through a sleeve 16 so as to clear the back 31 of the seat 3 which slides under the seat 2 on guides 18, 20. The rising seat has one back leg only, the other side of the rear of the seat resting normally on a bracket on the adjacent leg of the sliding seat. The hand lever 12 may be provided with a ratchet and pawl arrangement to hold the seat, which is preferably the driver's seat, in raised position if desired while in use. In the case of a vehicle having a central obstruction, e.g., the casing of the transmission, the inner front leg of the rising seat is displaced towards the middle of the seat, and the inner front leg of the sliding seat is bent or cranked to rest on a guide rail beyond the obstruction.
Patent GB-400712-A (GB)
Title: Improvements relating to means for opening and closing ventilators, windows, shutters or the like
IPC: E05F1/00
Filed: 1932-06-10
Abstract: 400,712. Thermally-actuated valves. HOPKINS, E. M., Wern, Llanmorlais, near Swansea. June 10, 1932, No. 16499. [Class 135.] A device for the automatic opening and closing of ventilators, windows, or shutters, in accordance with the change of temperature, by the pressure exerted on a piston by an expansible liquid, includes means whereby the pressure on the piston is automatically relieved if the ventilator fails to open. A receptacle 1 containing an expansible liquid such as methylated spirits, and a sealing liquid 26, such as oil, is provided in its narrow part 3 with a piston 4 connected by piston-rod 7, member 10, and rod 9 with a lever 12 secured to a lever 12A attached to a shaft 14. On expansion of the liquid in the receptacle, the piston is depressed, and ventilators 15, 25 opened by levers 12A, 23 and links 16, 24. Should the ventilators stick, or fail to open, the rod 9 slides through a pivot pin 11 against the action of a spring 17, the tension of which is adjustable by a wing nut 18. A spring 19A, adjustable by a clip 20, counterbalances the weight of the ventilators. In a modification, two opposed pistons are provided in the tube 3 one of which is spring-pressed, and moves to accommodate the liquid should the other piston not respond to the pressure of the liquid.
Patent GB-625113-A (GB)
Title: Improvements in and relating to the indication of water in water gauge columns of steam bilers
IPC: F22B37/78
Filed: 1946-05-30
Abstract: 625,113. Indicating liquid levels. KAY, G., and SCOTT, S. W. May 30, 1946, No. 16507. [Class 123(i)] Colouring liquid is supplied to the gauge glass 5 of a steam boiler 1 from an elevated closed tank 13 through a pipe 9 which is fitted with an orifice plate 8 and is in communication at its upper end with the top and bottom of the tank and at its lower end with the top of the gauge. The arrangement is such that a normal fall in boiler pressure will not be transmitted to the tank 13 immediately, with the result that the momentarily greater pressure in the latter will force colouring liquid therefrom and through the pipe 9 to the gauge, this action being repeated intermittently. The tank is provided with a valved filling device 14, a pressure relief valve 15 and a drain cock 16, and the pipe 9 with isolating valves 7, 11 and a drain cock 10.
Patent GB-515488-A (GB)
Title: Improvements in or relating to apparatus for generating gases under pressure for usein the operation of mechanism
IPC: F02N13/00
Filed: 1938-06-02
Abstract: 515,488. Generating combustion products under pressure. HERZMARK, N. June 2, 1938, No. 16530. [Class 51 (i)] [Also in Group XXI] Apparatus for generating gases under pressure for operating mechanism such as engine starters comprises a combustion chamber 12 adapted to receive an explosive cartridge 22 and having an outlet 19 for the'gases produced by the cartridge, a breech bolt 24 adapted to feed the cartridge axially into the chamber 12 and to seal the chamber and an electrically heated igniting plug 31 mounted on the bolt 24 and serving to guide the cartridge into the combustion chamber. The cartridge is inserted into the breech chamber 23 where it rests upon a pivoted cradle 28. When the bolt 24, which is provided with helical lugs 26 adapted to engage with helical lugs 27 in the breech chamber, is moved forward by rotating the handle 25, the plug 31 engages with a central bore 32 in the cartridge and pushes it into the combustion chamber 12 which is provided with a tapered lining 15 and a diffuser plate 17. Simultaneously the cradle 28 is tilted and its rear end 33 rises behind the bolt. The rear end of the bolt is provided with a recess 50 with which engages a latch 49 for locking the bolt in its inner position. The latch is provided with bevelled surfaces adapted to be engaged by bevelled surfaces on a bridge piece 39 operated by a spring pressed plunger 40 connected to a push button 41. The bridge piece 39 also forms a continuation of a valve spindle 36 provided with a valve 37 which controls the passage of gases from the combustion chamber through passages 34, 43, 44 to an exhaust pipe 45. By operating the push button 41 the bolt is unlocked and residual gases are allowed to escape from the combustion chamber. The combustion chamber is also in communication through a passage 54 with a chamber 58, Fig. 4, containing a thin metal disc 55 which acts as a safety device. When the breech is closed the cartridge is fired by a push button 76 carrying a contact pin 74 which engage with the periphery of a disc 72 at the end of an electrode 67, Fig. 6. The end 69 of the electrode engages with the annular edge at the end of a metal tube 61 which is heated to a temperature sufficient to ignite the cartridge. Insulation 68 is provided between the electrode and metal tube. Specification 506,675, [Group XXI], is referred to.
Patent GB-1162449-A (GB)
Title: Circuit Arrangements for Imitating the Touch of Percussive Musical Instruments.
IPC: G10H1/055
Filed: 1968-04-05
Abstract: 1,162,449. Electrophonic musical instruments. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 April, 1968 [8 April, 1967], No. 16537/68. Heading G5J. A circuit for imitating the touch of a percussive musical instrument is arranged so that the build-up time of the note from a tone generator is kept substantially constant or made to vary less than does the duration of actuation of the key 1 resulting from variation in touch intensity. The key is mechanically coupled to a magnet 2 such that actuation of the key will cause flux lines from the magnet to cut an inductance L so inducing a voltage therein which is fed through a diode D to a capacitor C. In accordance with this invention diode D is biased by a battery B such that it will only conduct when the voltage induced across L is greater than the battery voltage. Biasing of the diode D reduces the ratio between the build-up times for the softest and loudest touches on the key. A resistor R is used to reduce the ratio of the capcitor voltages for the loudest and softest touch so that they more nearly equal the ratio of the intensity of actuation for the loudest and softest touch. Fig. 3 (not shown), illustrates the further modification of placing an element X in the circuit between resistor R and diode D to compensate for the diode in the initial part of its characteristic if the voltage induced in the coil for the softest touch (the least touch to produce an audible note) only just exceeds the battery voltage. Element X is such that its resistance increases with increasing current in the initial part of the forward characteristic of the diode, for example a tunnel diode. Fig. 5 (not shown), illustrates a method of reducing still further the ratio of the capacitor voltages for the loudest and softest touch by connecting a further diode, reverse biased by a voltage E 2 , in parallel with inductance L, the effects of which are shown in Fig. 6 (not shown). Two alternative methods of providing a voltage threshold for the diode D are described, one in which a diode with an inherent voltage threshold is used and one in which a battery in series with a resistor is connected in parallel with the diode.
Patent GB-433906-A (GB)
Title: Improvements in or relating to tuned electro-magnetic relays or interrupters
IPC: H01H51/32
Filed: 1934-06-04
Abstract: 433,906. Light-current relays. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ROSE, W. R., c/o General Electric Co., Stoke, Coventry. June 4, 1934, No. 16559. [Class 38 (v)] A tuned relay or interrupter has a V- shaped armature carried by a blade spring 9 and adapted to vibrate within a correspondingly shaped air gap formed between a yoke 1 and a member 4 attached to the fixed core 5. The spring 9 carries a contact 11 adapted when the spring 9 is vibrating in correspondence to current variations in the coil 2, to engage intermittently a co-operating contact on a relatively fixed spring 8. The position of this contact may be varied by adjustment of a screw 12, having a conical portion engaged by an insulating stud 16 on the spring 8. In a modified form adapted for a lower rate of vibration, a tapered armature in a correspondingly tapered air gap is adapted in its motions to control interrupter contacts so as to produce a self-interrupting unit, additional contacts in a controlled circuit being operated by the movement of the armature, Figs. 2 and 3, (not shown).
Patent GB-274057-A (GB)
Title: Auxiliary devices for use in connection with the induction systems of internal combustion engines
IPC: F02M23/12
Filed: 1927-06-22
Abstract: 274,057. Elias, M. J. July 7, 1926, [Convention date]. Induction pipes, extra air valves and fittings for; charge, moistening; cylinders, cleaning.-A flangeshaped fitting 1 is clamped between the carburettor and induction pipe flanges and is provided with (a) a vessel 4 connected to the passage 3 by a groove through which unvaporized fuel drains into the vessel, this fuel being drawn up a tube 5 on to a roll of gauze 2 which extends across the passage 3, and re-atomized by the passing mixture stream, and (b) extra air inlets 16 opening into the mixture passage 3 and controlled by spring-loaded suction-actuated ball valves 19. The air inlets 16 may be provided with nipples or unions for the supply of steam or decarbonizing liquid.
Patent GB-167927-A (GB)
Title: Improvements relating to milk churns
IPC: B65D25/24
Filed: 1920-06-19
Abstract: 167,927. Robinson, A. S. F. June 19, 1920. Foot-rings.-Milk churns are provided with rubber or like foot-rings to prevent wear and tear. In the form shown in Fig. 1, a solid tyre d is vulcanized to the grooved undersurface of a T- shaped foot-ring which is riveted to the churn. In modifications, the outer arm of the T may be omitted and the inner arm may slope downwardly. In the form shown in Fig. 5 a solid tyre d is vulcanized to a ring of U-section riveted and cemented to the churn, the under part of the tyre being reinforced by a metal band h. In tyres of this type the ring may be of L-section, the reinforcing-band may be omitted, and the arms of the ring may be bent over the edge of the tyre.
Patent GB-1359395-A (GB)
Title: Extraction of nickel or cobalt values from lateritic ores
IPC: C01G51/00
Filed: 1972-04-11
Abstract: 1359395 Ni and Co values from ores INTERNATIONAL NICKEL CO OF CANADA Ltd 11 April 1972 [14 April 1971] 16671/72 Heading C1A Ni and Co values are recovered from lateritic ores containing limonitic and silicate fractions by separating the ore into these two fractions and then, (a) reducing the silicate fraction to selectively reduce more Ni and Co than Fe, (b) pressure leaching the Ni and Co from the limonitic fraction with an aqueous solution of H 2 SO 4  at a temperature of 150-300 C. to yield a leach solution containing Ni and Co and then (c) mixing the reduced silicate fraction with the leach solution and passing a gascontaining free oxygen through the slurry so formed to provide a pregnant leach solution containing Ni and Co. The slurry may be made acidic either by the leach solution or by the addition of H 2 SO 4  into the slurry. The silicate fraction preferably having a particle size of minus 20 mesh (Tyler series) may be reduced at a temperature of 650-825 C. with an atmosphere having a Co/Co 2  volume ratio of 0À25-1. Sulphur may be added during the reduction, e.g. as iron pyrites, pyrrho tite, So 2  or H 2 S providing 0À2-1% S in the fraction. The reduction may be carried out in a rotary kiln, fluidized bed or multi-hearth furnace. The reduced fraction may be cooled without re-oxidation or quenched in the leach solution. In the pressure-leach step the H 2 SO 4  may be formed in situ, e.g. by adding H 2 O and S (elemental or combined with Fe, e.g. 10-20% FeS 2 ) to the limonite and then leaching under an O 2  partial pressure of at least 5 atmospheres. The gas containing free oxygen may be air, O 2 -enriched air or O 2 . Step (c) may be carried out at 35-95 C. with a solids concentration of 20-45%, the pregnant solution produced having a pH > 1. Ni and Co values may be recovered from the pregnant solution by treating the solution with a water-insoluble quaternary ammonium thiocyanate or a thiocyanate salt of tertiary, secondary or primary amine in an organic solvent and then recovering Ni values from the aqueous raffinate, e.g. pptn. with H 2 S or as hydroxide or carbonate with a base or soda ash. Alternatively the sulphides of both Ni and Co may be pptd. from the pregnant solution by treatment with H 2 S under elevated pressure. Specification also describes a comparative pressure leach without employing a reduction step.
Patent GB-399765-A (GB)
Title: Bathing boat
IPC: B63B35/74
Filed: 1933-06-12
Abstract: 399,765. Bathing-appliances. BREVETTO SOC. ANON., 1, Via G. Vegezzi, Lugano, Switzerland. June 12, 1933, No. 16792. Convention date, May 12. [Class 77.] A bathing-appliance shaped like a boat has the longitudinal planking d spaced so that water has access to the interior. Floats e are arranged around the gunwale and in the interior if desired. The craft is propelled by a paddlewheel h and a tip-up seat for the occupant is provided. The openings between the planks are covered by suitable gratings.
Patent GB-464067-A (GB)
Title: Improvements in driving arrangements for wire drawing machines
IPC: B21C1/12
Filed: 1936-06-17
Abstract: 464,067. Control of motors. NORTON & CO., Ltd., SIR J. F., and NORTON, D. G. June 17, 1936, Nos. 16837 and 27611. [Class 38 (iii)] [Also in Group XXII] With auxiliary starting motor.-A driving-arrangement for a wire-drawing machine or draw-bench, in which a slow starting speed and high starting torque are necessary, comprises a motor such as an electric motor a which drives the machine c through a shaft b, b<1>, a worm wheel g freely mounted on the shaft and carrying clutch teeth e, and a manually slidable clutch member d keyed to the shaft, a smaller motor i initially driving the machine through a worm h and the worm wheel g and clutch e, d, after which the motor a is switched in, the clutch overruns and disengages, and the motor i is switched off. The worm wheel g is mounted on a sleeve b<2> which is keyed to the aligned shafts b, b<1>. The motor a may be of the squirrel-cage type, having a high speed and a low starting torque.
Patent GB-418572-A (GB)
Title: Improvements in and relating to means for comparing and measuring the degree of lubrication of textile threads and filaments
IPC: G01N19/02
Filed: 1934-06-06
Abstract: 418,572. Measuring degree of lubrication of threads. CHATILLON SOC. ANON. ITALIANA PER LE FIBRE TESSILI ARTIFICIALI, 13, Via Conservatorio, Milan, Italy. June 6, 1934, No. 16845. Convention date, June 10, 1933. [Class 120 (iii).] Apparatus for comparing and measuring the degree of lubrication of threads or filaments comprises an arm 1 pivoted on an axis passing through its centre of gravity, provided at its lower end with a reed 8, 8<a>, through which the yarn passes as it is unwound from the drum 13 and wound up on the drum 15 driven by a motor 16, and a spring connected to the arm and to the lever 7, the position of which is adjustable, so that a torque can be applied to the arm equal and opposite to that due to the friction of the thread on the reed, whereby the arm is brought back to its normal position ; a pointer 17 and scale 18 are provided whereby this torque may be measured, and hence the lubricating value of the lubricant used on the thread. The reed comprises two series of metal leaves 8, 8<a> of which the upper leaves are rotatably mounted, to facilitate the introduction of the thread. The lower end of the arm 1 may dip in a trough 10 containing oil, which acts as a damping device.
Patent GB-1005683-A (GB)
Title: Clips for fastening a rail to a crosstie
IPC: E01B9/30
Filed: 1963-04-30
Abstract: 1,005,683. Securing railway rails. J. L. CONE, C. W. CONE, and D. P. CONE. April 30, 1963 [May 1, 1962], No. 16864/63. Heading E1G. A rail-securing clip of spring steel has convex bearing surfaces 4 and 15 which engage a recess in a sleeper 1 and the flange 6 of a rail respectively. Depending flanges 19 restrain lateral movement of the rail and ribs 21 stiffen the clip against lateral thrust. A rail pad 9 of e.g. polyethylene is cut away to fit around clamping bolts 22 screwed into threaded sleeves 5 embedded in the sleeper.
Patent GB-119940-A (GB)
Title: Improvements in Hot Water or Steam Heating Egg-cups.
Inventor: FURRY GERTRUDE SMITH
IPC: A47G19/28
Filed: 1917-11-16
Abstract: 119,940. Furry, G. S. Nov. 16, 1917. Egg-cups.-A hot-water or steam heated eggcup comprises a saucer-like base 1 adapted to receive eggs, a central hollow body 4, and an egg-receptacle 7, fitting the body 4 as shown. The steam from the hot water in the hollow body 4 passes through apertures 15 into the receptacle 7, and is prevented from escaping by flanged edges of the cover 11 fitting tightly into the upper end of the part 7. The apparatus may be placed over a lamp or other means for heating the water.