baber/WOPTO huggingface dataset:
Patent GB-173131-A (GB)
Title: Driving mechanism for wringers and the like
IPC: D06F45/18
Filed: 1920-11-06
Abstract: 173,131. British Thomson - Houston Co., Ltd., (General Electric Co.). Nov. 6, 1920. Mangles and wringers, driving-gear for, consisting in a particular arrangement of reduction gear for driving from a small high-speed electromotor. An electromotor 1 is controlled from a switch 41 and is mounted on shafts 2 journaled in bearings 5, 6 carried by the motor casing connected to a reduction gear housing 11 by bolts. On a motor shaft is keyed a gear-wheel 15 which drives a gear-wheel 22 through a train 16, 17, 19, 20. The wheels 19, 20 are integral and are mounted on a stub-shaft 21, in line with the motor shaft, and attached to the gear housing, while the wheels 16, 17 are integral and are mounted on a stub-shaft 18, in line with the lower roller, and carried by the flange of the motor casing. The gear-wheels are made of greater thickness as their distance from the motor increases. Clutch teeth 24 are arranged on a sleeve attached to the gear-wheel 22 and engage teeth in a clutch member 25, sliding on the square shaft 26 of the lower roller, and actuated from a handle 29. The upper roller is driven from the lower roller by staggered gear-wheels 37, 36, and the whole apparatus is pivoted on a vertical pin 14.
Patent GB-1413544-A (GB)
Title: Photochromic light filters
IPC: G02C7/10
Filed: 1973-07-03
Abstract: 1413544 Photochromic polymer compositions AMERICAN OPTICAL CORP 3 July 1973 [3 July 1972 15 June 1973] 31634/73 Heading C3P [Also in Divisions G2 and C4] A photochromic light filter, e.g. in ski goggles or sun-glasses comprises a transparent plastics substrate containing a metal dithizonate, the filter being formed by immersion in a saturated metal dithizonate solution at an elevated temperature so as to imbibe the dithizonate into the substrate, the solution solvent being a non- solvent for the substrate. Detailed metal dithizonates are exemplified, and also substrates such as polyallyl diglycol carbonate, polycarbonate and poly-lower aliphatic methacrylates.
Patent GB-1136441-A (GB)
Title: Continuous glass cylinder spinning
IPC: C03B19/04
Filed: 1966-07-14
Abstract: 1,136,441. Glass cylinder manufacture. CORNING GLASS WORKS. 14 July, 1966 [13 Oct., 1965], No. 31641/66. Addition to 1,103,197. Heading C1M. In the manufacture of glass cylinders according to the parent Specification, the viscous glass fed on to the rotating mould is continuously mechanically smoothed to provide a smooth surface for subsequent deposition. A stream S of high velocity glass with viscosity above 1000 poises is continuously fed to a rotating mould 10 or 10<SP>1</SP> to form a glass cylinder C, the mould 10<SP>1</SP> being internally cooled by water 11<SP>1</SP> and the mould 10 cooled by air-water cooling sprays 11. The glass cylinder C is initially drawn out by a rotating gripper ring 33 and the stream S flow rate and rate of withdrawal determine the thickness of the cylinder wall. Mechanical smoothing of the glass is provided by a roller assembly 20 on a fixed shaft 21 secured to one end of an arm 16 mounted by pin 16<SP>1</SP> on a fixed bracket 15, the other end of arm 16 being spring pressed to maintain the roller 24 in engagement with the glass and the degree of pressure from spring 17 being adjustable by a nut 19 on the fixed threaded stem 18. The roller 24 is preferably hollow and of stainless steel and is water cooled.
Patent GB-428298-A (GB)
Title: A road gritting machine
IPC: E01C19/20
Filed: 1933-11-14
Abstract: 428,298. Distributers for sand, gravel, &c. MOLYNEUX, J., 236, Station Road, Bamber Bridge, near Preston, DEWHURST, H. H., 21, Ribblesdale Place, and HOON, F., Greengates, Hollinghurst Avenue, Penwortham, both in Preston. Nov. 14, 1933, No. 31680. [Class 6 (i)] A hopper or container mounted on a wheeled chassis is provided with spring-controlled discharge doors b, a delivery roller d having waved grooves, spring-loaded release plates e for control of the flow and release of pieces of abnormal size, a fixed spreader plate i, and means for opening some or all of the doors b by the operation of a master lever or levers. The spring-loaded plates e are adjusted by moving a channel bracket f by means of a hand-wheel g and screw and lever mechanism. The grooved roller d may be driven from one of the wheels by gearing h. The sliding doors b are connected by rods k to levers n loosely mounted on a shaft s and controlled by springs p fastened to the hopper. All or any of the doors b may be adjusted by turning the shaft s by means of a master lever, arms o on the shaft carrying removable pins for engaging the levers n. The machine is provided with an adjustable castor wheel at the back for regulating the height of the draw-bar.
Patent GB-537123-A (GB)
Title: Improvements in furnaces or stoves for heating air or the like
IPC: F26B21/00
Filed: 1939-12-08
Abstract: 537,123. Air heating furnaces. BRYDEN, J. Dec. 8, 1939; No. 31757. [Class 64 (i)] In an air heating furnace the incoming air is directed through cowling 12 around the sides and crown of the combustion chamber 1 and then through tubes 6 arranged in groups, in some of which the tubes are staggered and in others non-staggered. Air is also directed into the tubes through a surrounding casing 27.
Patent GB-1525458-A (GB)
Title: Electrolytic process for the recovery of zinc and manganese dioxide
IPC: C25C1/10
Filed: 1977-07-28
Abstract: 1525458 Electrolytic Zn and MnO 2  production SHERRITT GORDON MINES Ltd 28 July 1977 [11 Aug 1976] 31800/77 Heading C7B Zn and MnO 2  are recovered from a common source material by leaching to obtain a solution containing Mn and Zn ions, which is electrolyzed in two separate cells in one of which conditions favouring Zn production and inhibiting MnO 2  formation are maintained and in the other of which MnO 2  is obtained with or without Zn. The electrolyses may occur in either order. Sulphidic ores may be converted to sulphate solutions using oxidation and H 2 SO 4 , free S and Fe, Cu, Cd and As are then removed and in the said one cell a preconditioned Pb-Ag anode is used to inhibit MnO 2  formation. H 2 SO 4  regenerated in the other cell may be recycled to the leach step and Zn from this cell recovered as such or recycled to the leach step as a neutralizing agent.
Patent GB-1529025-A (GB)
Title: Delayed turn-on and turn-off control circuit for an electric motor
IPC: B66F9/24
Filed: 1976-07-30
Abstract: 1529025 Control of DC motors TOWMOTOR CORP 30 July 1976 [1 Dec 1975] 31903/76 Heading H2J The D.C. motor 11 driving the pump 12 of an hydraulic system 13 for jacks 18, 21 in a forklift truck, is started and stopped by a relay 29 whose coil 31 is controlled by a delayed turn-on turn-off circuit 10, which consists of an SCR 34 fired by a turn-on delay circuit 46 when one of a number of normally-open switches 43 is closed by actuation of a lever 19, 22 in the system 13, whereby coil 31 is energized to close contacts 28 a predetermined time after closure of switch 43, and a commutating SCR 71 and capacitor 58 to turn off the SCR 34 a predetermined time after opening of the switch 43, the SCR 71 being controlled by a turn-off delay circuit 48 which, together with circuit 46 and switches 43, is supplied from a low voltage provided by members 37, 39, 41 to minimize arcing at the switches 43. Closure of a switch 43 turns on a transistor 61 to disable the circuit 48 and applies a voltage to the R.C. timing circuit 49, 51, which switches on a unijunction transistor 52 after a predetermined time to fire the SCR 34, whose conduction also charges the capacitor 58. When the switch 43 opens, the transistor 61 turns off to permit the R.C. timing circuit 63, 64, 67 to charge and so turn on unijunction transistor 66 after a predetermined time, whereupon the SCR 71 is fired to turn off SCR 34. Should this not occur, the circuit 48 continues to function (as a free running oscillator) to apply further firing pulses to SCR 71, so long as a key switch 27 is closed. Resistor 59 is chosen to ensure turn-off of SCR 71 after discharge of capacitor 58 and charging of the latter in a time less than the delay of circuit 48. The turn-on delay reduces the likelihood of the motor starting when lever 19, 22 overshoots on its spring-return to the centre-off position (thus transiently closing a switch 43). If such a starting does occur, the turn-off delay prevents opening of contacts 28 until the starting surge of motor current has subsided.
Patent GB-619990-A (GB)
Title: Improvements in or relating to hygienic stands
IPC: A47G19/30
Filed: 1946-10-28
Abstract: 619,990. Dental and surgical trays. SAUSZCK, R. Oct. 28, 1946, No. 31959. [Class 81 (ii)] [Also in Group XIV] A receptacle for dental and surgical appliances, having a cover adapted to be raised manually and to return under gravitv, has the receptacle and cover connected one to the piston and the other to the cylinder of a hydraulic assembly, the piston being so formed that fluid can pass through it in one direction and the cylinder being in communication with an outer chamber whereby fluid can be transferred from one side of the piston to the other through the piston and through the outer chamber during raising of the cover, but cannot pass through the piston during the return movement. The base 1 of the receptacle is rotatably mounted on a cylinder 2 secured in the stand 4 and sealed about the lower end of a long cylinder 6 formed with two sets of apertures 10, 11 and with a single smaller aperture 10a. A piston 32 having a number of through passages 30a closed at the lower ends by a resilient flap valve 31 is slidable in the cylinder 6, the piston rod 15 being secured, through the medium of resilient washers and a knob, to the cover 12 for the receptacle. The piston rod passes through an apertured plug 26 secured in the upper end of the cylinder 6, one of the apertures receiving a screw plug 30 to limit the outward movement of the piston and the others serving to permit the introduction of the fluid. The sets of apertures 10, 11 are so spaced that they are covered by the piston at its limits of movement so that the commencement and termination of the return movement are effected slowly.
Patent GB-987896-A (GB)
Title: Apparatus for picking up and lowering a pilot at sea
IPC: B63B27/14
Filed: 1962-08-21
Abstract: 987,896. Ladders for ships. B. C. MAJOR. Aug. 20, 1963 [Aug. 21, 1962], No. 31981/62. Heading A6L. [Also in Division B8] A pilot at sea is picked up on a ladder 11 hauled up the ship's side by a winch 22 on a transportable frame 23. The ladder is flexible and carries rollers 32 engaging the ship's side and a handgrip runs down the centre of the ladder. The top and bottom steps are extended in horizontal spreaders restricting twisting of the ladder. The frame 23 rests on the bulwarks 27 and has a ladder 24 leading down to the deck the whole apparatus being moved about the deck to bring it into and out of use on wheels 20.
Patent GB-333458-A (GB)
Title: Improvements in wiping and polishing devices for rotary plate printing-machines
IPC: B41F35/02
Filed: 1929-10-22
Abstract: 333,458. Barker, R. W., (American Bank Note Co.). Oct. 22, 1929. Inking - apparatus. - In a rotary printing-machine the intaglio printing- plates 12, 13 on the cylinder 10 are wiped and polished after inking by means of intermittently fed webs which are passed over axially reciprocating pads 22, 23, 68, carried at each end by reciprocating bars 32, 46, 69, which are similarly mounted and reciprocate in guides in fixed brackets 33, 47, 70 and are pressed adjustably towards the cylinder by means of springs 38, 52, 75 which can be put out of action to permit of the threading of new webs, and to permit of makeready of the press, and can be restored to their adjusted position without necessity of re-adjustment. Each bar 32 is pressed towards the cylinder 10 by means of a spring 38 which is acted upon at its lower end by a wear plate 41 acted on by a screw 40 which is adjustable in a plunger 39 capable of sliding in a housing attached to the bracket 33. An adjusting screw 34 with a bearing head 35 is adjusted in each bracket 33 and held in adjusted-position by a lock-nut 36 to limit the motion of the pad 22 towards the cylinder. The adjustment of the screws 40 controls the operative pressure of the pad. In order to throw-off the pad 32 altogether, each plunger 39 can be depressed in its housing so as to relieve the bar 32 of the pressure of the springs 38. The plunger 38 is formed with a rack 42 engaged by a pinion 43 on a shaft 44 which is rotated by a crank-arm 45 when it is desired to insert a new strip of wiping material, or to change a printing-plate. The crank-arm 45 is connected by a link 61 to a similar arm 60 on a shaft 59 of a pinion which depresses the plunger 54 in order to throw-off the wiping-pad 23 simultaneously with the pad 22. The shaft 59 is operated by a bent lever 65 and a lever arm 64 which form a toggle normally held in a stable closed position with the bent end of the link 65 against the shaft 63 of the arm 64. A latch 67 normally locks an arm 66 on the shaft 63, and when the latch is released the arm 66 is operated by hand to break the toggle and depress the plungers 54, 39. The throw-off mechanism for the polishing pad 68 is operated by an independent lever mechanism 84 - - 87, fitted with a latch 88, all operated in a similar manner to the corresponding mechanism for the wiping pads.
Patent GB-641374-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41B1/04
Filed: 1947-12-05
Abstract: 641,374. Shirts; combination garments. JACOBS, A. J. Dec. 5, 1947, No. 32099. [Class 141] A shirt, vest; &c. is provided with a shaped extension G secured to the lower edge of the back, adapted to,be passed between the legs of the wearer and fastened to the front, e.g. by buttons E, L, M, to converting the garment into combinations. The extension may be formed in one piece of knitted, crotcheted or other elastic material, or it may be formed of two elbow-shaped pieces of inelastic woven material g. When the invention is applied to a shirt without a continuous front opening, a central vertical slit is provided at the lower edge of the front.
Patent GB-1341822-A (GB)
Title: Welding methods and apparatus
IPC: B23K9/00
Filed: 1972-07-10
Abstract: 1341822 Welding by fusion WESTING- HOUSE ELECTRIC CORP 10 July 1972 [20 Aug 1971] 32134/72 Heading B3R [Also in Division G6] In TIG butt welding a spigoted end plug 16 to the end of a nuclear fuel tube 14 by rotating the workpiece comprising the assembled, abutted, plug and tube, about a horizontal axis, past an electrode 48, in an inert gas atmosphere in a chamber 42, welding arc plasma is deflected away from the main body of the tube and towards a weld preparation plug/tube abutment 30 by the end wall 62 of a cylindrical arcplasma deflector 60 co-rotating with the workpiece assembly. The plug spigot comprises an insertion-facilitating, tapered section 32 and a cylindrical section 22 which is a press fit in the tube end and provides a weld backing. Welding is effected in one rotation of the workpiece. The workpiece is rotated by a chuck 51 (e.g. pneumatic) through which it extends and is held at the plug end by a rotatable end stop 44. The deflector 60 comprises an intermediate tube, e.g. of copper, having fitted thereon welding end and remote end parts 66, 70 respectively of the same material as the fuel tube, to prevent weld contamination, and of an insulating material such as P.T.F.E. or a polyamide. The bore of the welding end part 66 is selected so that the fuel tube and deflector are relatively movable over the weld, the deflector thereby functioning as a gauge on the weld build-up. Clearance between the deflector and a chamber access opening 46 should be less than 1 mil. The deflector may, as shown, be fastened to the workpiece for rotation therewith by a collar 72 secured and centred on the workpiece by thumbscrews 74, 76 and coupled to the deflector, as by snap connectors 78. In Fig. 4 (not shown), the deflector is coupled directly to the chuck 51 by rods (80). The shielding inert gas may be argon, helium or a mixture thereof. The electrode may be 2% thoriated tungsten. The fuel tube/plug workpiece comprises a thin-walled tube of austenitic stainless steel, or a zirconium alloy, e.g. of 1À2-1À7% tin, 0À07-0À20% iron, 0À05-0À15% chromium, 0À03-0À08% nickel, balance zirconium, enclosing fuel pellets 12, e.g. of UO 2  enriched with U-235. The tube ends are closed with end plugs of the same material as the tube, and a spring 20 at one end of the pellets prevents movement thereof. The last of the two plugs to be welded to the tube may include a subsequently sealed axial opening for pressurizing of the tube with inert gas.
Patent GB-192541-A (GB)
Title: Improvements in vehicle signals
IPC: B60Q1/34
Filed: 1921-12-01
Abstract: 192,541. Davis, C. L. Dec. 1, 1921. Road-traffic signals on vehicles; semaphore and pointer signals; luminous paint signals.-A stopping and turning signal for motor cars comprising a semaphore 10, which mav be painted with luminous paint, is mounted on a rear wheel fender 6 of the car, and can be set to one of four positions by means of a notched foot-lever 24, the notches 29 of which co-operate with a plate 27 to fix the signal. The points can additionally be set to the " Stop " position by operating the foot-brake. The semaphore is mounted upon a shaft 9 pivoted on the fender, a spring-controlled crank 16 on the shaft being connected by a link 17 to a bell-crank lever 15 which is also mounted on the wheel fender and is operated through wires 22, 32, by the foot-controlled lever 21 and brakerod 31 respectively.
Patent GB-263200-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs of the benzanthrone series
IPC: C09B3/06
Filed: 1926-12-20
Abstract: 263,200. I. G. Farbenindustrie Akt.- Ges. Dec. 18, 1925, [Convention date]. Addition to 242,620. Benzanthrone dyes.-The process of the parent Specification, according to which vat-dyes are obtained by treating with alkaline condensing agents benzanthrone-Bz1-thioethers, is modified by replacing the latter by oxidation products of Bz1-benzanthrone-thioethers which have a free 2- position and a sulphoxide or sulphone character; dyestuff formation thereby occurs with greater facility. According to examples :-(1) Bz1- benzanthronylmethylsulphide is oxidized with ammonium persulphate in sulphuric acid solution and the products converted into a violet vat-dyestuff by treatment with caustic potash and alcohol on the water bath; (2) Bz1-Bz1<1>dibenzanthronylsulphide is oxidized in sulphuric acid with hydrogen peroxide and the product converted into isodibenzanthrone by treatment with caustic potash and alcohol at 90-100‹ C. ; (3) benzanthronylsulphide is treated with nitric and sulphuric acids; the dinitrobenzanthronylsulphone so obtained yields the diamino compound by reduction with sodium sulphide; the latter yields with alcoholic potash at 130-140‹ C. a dyestuff which dves cotton from the vat in violet-blue shades changed to marine-blue by chlorination.
Patent GB-211939-A (GB)
Title: Improvements in notching and punching presses
IPC: B21D28/00
Filed: 1922-11-28
Abstract: 211,939. Cooper, A. E., and Jones, C. Nov. 28, 1922. Punching.-A press as described in Specification 199,756 has its tool-holding arms a<1> carried by a plunger a, Fig. 3, or plungers a, Fig. 2, actuated by an eccentric or eccentrics f driven from a single shaft. The eccentric straps g are connected by a pin i engaging a slot in the plunger and formed with a longitudinal recess j. A gag h is mounted below the recess and in the plunger in such a way that it can be rotated, by a rack k and an adjustable stop k<1> into alignment with the slot j, as shown, to stop the plunger, but is normally held, by a spring attached to the rack, at right angles to the slot so that it reciprocates the plunger. When idle, the plunger is held in the raised position by a spring c enclosed in a casing d. In a modification the plungers a, Fig. 5, have a T-section and engage corresponding slots in a rectangular block b. Arms a<2> extend, opposite the arms a<1>, through slots into a central bore, where they are engaged by springs c.
Patent GB-768857-A (GB)
Title: Improvements in gas fires
IPC: F24C3/04
Filed: 1954-11-10
Abstract: 768,857. Incandescent gas fires. TENNANT, D. R. Nov. 9, 1955 [Nov. 10, 1954], No. 32505/54. Class 126 A gas fire adapted to be suspended from the roof of a chamber comprises a fireback 1, Figs. 1, 2, carrying radiants 6 and supported by a metal ring 8 connected by radial arms to a metal casing 11 lined with refractory segments 12, said ring resting on the boss 13 of a burner 14 having jets 15 and carried by the gas supply pipe 17. The gas pipe may be lagged and is controlled by a valve 18 'regulated by chains 19. The fire is surmounted by a metal reflector plate 26 supported by a spider 20 secured by a grub screw to the gas pipe.
Patent GB-1421563-A (GB)
Title: Mixing apparatus
IPC: B01F15/00
Filed: 1973-07-09
Abstract: 1421563 Mixing apparatus M L BARD 9 July 1973 32522/73 Heading B1C An immersion mixer has an impeller 18 offset (see Fig. 2, not shown) from the axis of the container 12; a pump 20 in conjunction with pipes 21-24 and three-way valves 25A-C enables liquid to be circulated from the periphery to the centre of the container or vice versa, to control the vortex created by the impeller. The impeller comprises a disc 30 with peripheral teeth 31, 32 mounted in a hollow shaft 17 between upper and lower plates 39, 45 shaped to provide an annular passage between them of venturiform cross-section. Arcuate blades B in each side of the disc 30 cause material to be drawn in axially and ejected between the plates 39, 45. Arcuate curved plates 41, 46 form tapering feeding chambers 42; material enters the wider, leading ends and passes through graduated apertures 40, 47 into the annular passage. Gas (e.g. air) may be supplied from the hollow shaft 17 through the passages P. P<SP>1</SP>. In another embodiment, Fig. 13 (not shown) the disc and plates may be thick enough to accommodate internal gas passages; gas may be supplied from the hollow shaft through an arm (102) extending between the disc and the upper plate, or through a pipe (115) to the underside of the impeller; and a gas/liquid mixture may be supplied to the underside of the impeller through a pipe (111) and heat exchanger (114).
Patent GB-325861-A (GB)
Abstract: 325,861. Soc. des Usines Chimiques Rhone-Poulenc, Hereward, H. W., and Hereward, P. O., (Representatives of Ehrhardt, E. F.). Sept. 3, 1928. Addition to 321,697. Phenol-aldehyde condensation products.- In the production of synthetic resins by condensing polyhydric phenols with formaldehyde and recovering the water by distilling in vacuo or by precipitating the resin by dilution with water or a salt solution as described in the parent Specification, the polyhydric phenol is replaced by a mixture of a polyhydric and monohydric phenol. In the examples (1) phenol, resorcin, and aqueous formaldehyde are heated and the water is removed by distillation in vacuo ; (2) the product of example 1 is mixed with sawdust and moulded ; (3) phenol, resorcin, aqueous formaldehyde and sawdust are mixed and distilled in vacuo ; (4) phenol, resorcin, aqueous formaldehyde and ammonia are mixed and heated to 58-60‹ C. and the resin is precipitated by a saturated salt solution, the precipitate being filtered and then dried in vacuo, or (5) in a current of air at 35‹ C.