baber/WOPTO huggingface dataset:
Patent GB-1205475-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B21/08
Filed: 1968-02-06
Abstract: 1,205,475. Agricultural implements. INTERNATIONAL HARVESTER CO. 6 Feb., 1968 [6 Feb., 1967], No. 5801/68. Heading A1B. An agricultural implement comprises front and rear tool carrying units 13 and 14 in tandem which are so connected that, on encountering a low draught resistance, both units rise together, and, on encountering a high draught resistance, the front unit may rise independently of the rear unit. The rear unit 14 may always rise independently of the front unit. The rear unit is attached to the front unit via vertically spaced parallel links 40 and 41 which are pivotally connected to standards 37 on the front unit and triangular flanges 47 on the rear unit. This arrangement allows relative vertical movement of the units. The auxilliary frame 89 comprises angle bars 88, pivotably mounted on shaft 22 of the front unit, and a U-shaped member 97. This frame may be maintained, by a toggle linkage 90, in a substantially horizontal position, so that if the front unit rises due to a low draft resistance, the rear unit will rise, supported on the member 97. If the front unit rises due to a high draught resistance the toggle linkage 90 shown in the over centre locked position in Fig. 6 is released and the frame 89 pivots on shaft 22 to allow the rear unit complete freedom of vertical movement. Draught is transmitted to the implement through draught member 74 consisting of forward rod 78 and rear rod 75 carrying pin 81. A spring 79 surrounds the draft member 74, and at one end abuts plate 60 attached to the front unit and at the other end abuts a collar 80 attached to the rod 78. Under normal conditions, spring 79 absorbs the draft load. In high draft conditions the spring 79 becomes compressed, moving member 74 relative to the main frame and causing pin 81 to move against and release the toggle. Wheels 82 are pivoted on arms 83 attached to shaft 22. Said shaft may be rocked to raise or lower the wheels by a system comprising a hydraulic cylinder 84, the cylinder being anchored at one end to the auxiliary frame, and at the other to the shaft 22. Each of the front and rear units has two laterally spaced subunits 28, 29, 42, 43, each pair being connected together by flexible springs 30 and 53 respectively. These flexible connections allow the subunits to conform to the irregularities in the ground.
Patent GB-435757-A (GB)
Title: Improvements in or relating to fire extinguishing devices
IPC: B05B3/04
Filed: 1934-02-22
Abstract: 435,757. Spray-producers. MARCHAUT, P. J., 67, Rue de Maubeuge, Paris. Feb. 22, 1934, No. 5858. Convention date, Nov. 3, 1933. [Class 69 (iii)] [See also Group XXI] A fire-extinguishing appar atus is provided with a nozzle adapted to discharge a mixture of gas and powder as a conical sheet. As shown. the nozzle comprises a core 17 adjustable along the pas sage 9 of the nozzle 1 and formed with helical channels 18 of outwardly decreasing pitch and section. In a modification, the core 17 with helical channels is rotary under control of a brake, the apex angle of the cone decreasing as the speed of the core increases. The Specification as open to inspection under Sect. 91 comprises also constructions in which the core is formed as a conical deflecter which is adjustable or spring-biassed. This subject-matter does not appear in the Specification as accepted.
Patent GB-752909-A (GB)
Title: Electric control system
IPC: G05B11/01
Filed: 1954-03-01
Abstract: 752,909. Magnetic amplifiers. BENDIX AVIATION CORPORATION. March 1, 1954 [April 1, 1953], No. 5954/54. Class 40 (4). In a servomotor system including a magnetic amplifier, a difference between normally equal direct currents through two windings controlling the degree of magnetization of two reactor cores serves to unbalance a Wheatstone bridge comprising a pair of windings on each of the reactor cores, the bridge being supplied with alternating current across one diagonal and feeding a load connected across the other. A signal from a control device 35 is applied to the grid 46 of a two-stage pre-amplifler 24 which is provided with negative feed-back over resistors 61 and 63 to maintain a relatively constant gain. The output is applied to the strapped grids 65, 67 of a double triode discriminator 25 which includes in its anode circuits windings 80, 82 which control the degree of magnetization in the reactor cores 84, 86, Fig. 2. The reactor windings 90, 91, 95, 96 are connected as a bridge 88 to which A.C. is applied at 100, 101 and which is balanced in the absence of a control signal. The phase and amplitude of the bridge output from 103, 104 and the current in field winding 132 is determined by the phase and amplitude of the control signal input relative to the A.C. applied to the anode circuits of the discriminator. Feed-back is provided from the bridge output to the pre-amplifier via a transformer 111 and from a " rate " generator 34 via output winding 202 and grid 46.
Patent GB-393239-A (GB)
Title: Improvements in sewing machine bobbin cases
IPC: D05B57/26
Filed: 1933-02-28
Abstract: 393,239. Sewing-machines. JONES' SEWING MACHINE CO., Ltd. and HALL, J., Guide Bridge, near Manchester. Feb. 28, 1933, No. 6017. [Class 112.] A bobbin case 6 houses a removable thread case 11 in a recess 9, the centre 10 of which is offset vertically to the running flange of the bobbin case and laterally with respect to the needle. The lateral offset is on that side of the needle which is approached by the rotary loop taker beak. The bobbin case 6 is supported concentrically in the loop takes 4 by a flange 7 and the thread case is held in its recess by a catch slide 13 which is operated by a finger-piece 16.
Patent GB-384295-A (GB)
Title: Improvements in tank furnaces for melting glass and similar fusible substances
IPC: C03B5/42
Filed: 1931-02-26
Abstract: 384,295. Glass furnaces. JENAER GLASWERK SCHOTT & GEN, Otto-Schott- Strasse, Jena, Germany. Feb. 26, 1931, No. 6027. Convention date, March 1, 1930. Void [Published under Sect. 91 of the Acts]. [Class 51 (ii).] In a tank furnace for melting glass and similar fusible substances the wall of at least part of the melting tank is of fused quartz. As shown in Fig. 1 the tank comprises thin plates a of fused quartz protected on the outside with a refractory clay b. In a modification, Fig. 2, the lower part e of the tank is of refractory clay and the upper part of quartz plates d. Small quantities of alumina, zirconia, or the like may be present in the fused quartz.
Patent GB-586912-A (GB)
Title: Turbine system
IPC: F02B37/16
Filed: 1943-04-15
Abstract: 586,912. Motor power plant; gas turbines. TURBO ENGINEERING CORPORATION. April 15, 1943, No. 6076. Convention date, May 2, 1942. [Classes 110 (i) and 110 (iii)] [Also in Groups XXVII and XXXIII] A turbine wheel driven by the exhaust gases of an I.C. engine is associated with or forms part of a turbine compressor combination which can operate as an independently driven gas turbine when the I.C. engine exhaust is reduced. The turbines may drive an electric generator and other auxiliaries or contribute power to the main drive or to a propulsion jet and the compressor may be used as a supercharger for the I.C. engine. In the plant shown in Figs. 1 and 2, the exhaust of an I.C. engine is delivered into a casing 16 of a turbine wheel 14 from which it passes through a heat exchanger 62 to an outlet 64 which may be propulsion jet. The exhaust may pass from the I.C. engine directly through a passage 80. An electric generator 2, a second turbine wheel 12 and an air-compressor 10 are mounted on the same shaft as the turbine wheel 14. Air for the compressor is taken in at 46 and delivered through a pipe 58 to the heat exchanger 62 and to a combustion chamber 72 which opens into the inlet 24 of the turbine wheel 12. When the I.C. engine exhaust is sufficient to drive the turbine 14 and generator 2, no fuel is supplied to the chamber 72 and the heat acquired by the compressed air in the exchanger 62 is sufficient to allow the combination 10, 12 to idle without being a load on the turbine 14. The speed of the generator 2 is kept steady by a governor 6 operating upon the byepass valve 82, the throttle valve 84 in the entry to turbine 14 and a fuel valve 77. Air supplied by a pump 8 passes through ducts 40, 42 and 44 for cooling the shaft bearing and the turbine wheels. Compressed air for an aeroplane cabin may be tapped cold at 88 and hot at 92 and a desired temperature can be obtained by adjusting the valves 90, 94. A valve 34 enables the turbines 12, 14 to work in series, the exhaust of the turbine 12 passing to the turbine 14. In a modification a single wheel replaces the wheels 12, 14, the I.C. exhaust acts on the inner portions of the blades and the air or gases from the chamber 72 on outer portions. In the'plant shown in Fig. 4, the exhaust of the I.C. engine 140 drives the turbine wheels 172, 170 in series and these carry compressor stages 166, 150. The compressed air is used to supercharge the I.C. engine when valve 176 is open and when valve 178 is open it passes to an ejector throat 156 where it mixes with the engine exhaust. This induces the combustion of any excess fuel in the exhaust and further fuel can be injected at 160. The wheel 172 is geared to the shaft of the airscrew 146 which is driven by the I.C. engine through an overrunning clutch 142. In another form, mechanical power is not taken off the turbines but their exhaust is used to energize a propulsion jet. Specification 520,045 and U.S.A. Specifications 1,926,225 and 1,959,703 are referred to.
Patent GB-775321-A (GB)
Title: Improvements relating to braking systems incorporating a vacuum booster cylinder
Inventor: SADLER FRANCIS ANTONY DAWSON
IPC: B60T13/24
Filed: 1955-03-02
Abstract: 775,321. Fluid-pressure brakes. GIRLING, Ltd. March 2, 1956 [March 2, 1955], No. 6128/55. Class 103 (1). [Also in Group XXIX] A control valve for pneumatic servo devices of the kind described in Specification 694,582, i.e. modified in that a primary valve member 43 urged upwardly by a spring 47 is provided between the valve lips 38 of the valve cage and the housing 14, the member 43 having a lip 44 which is gapped or notched as at 45 in Figure 5. When a brake application is initiated by upward movement of rod 36 and cage 35, due to spring 47 being stronger than spring 41, the lip 44 maintains the valve washer 39 out of contact with lips 38 on the cage and thus a certain amount of atmospheric air from inside the cage may pass through the notches 45 to reduce the degree of vacuum passed from chamber 30 through passage 32 to the servo cylinder, thus producing a smoother brake actuation. If movement of rod 36 is continued upwards until the top of valve head 40 strikes the cover 34, valve member 44 is forced down so that lips 38 and 44 are level and inlet of atmospheric air is completely shut off. If spring 47 is made weaker than spring 41, the washer 39 is not raised from lips 38 until the vacuum has taken effect on the underside of diaphragm 33 and the inner end of the cage.
Patent GB-1386047-A (GB)
Title: Cleaning of spraying an like nozzles
IPC: B05B15/02
Filed: 1973-02-08
Abstract: 1386047 Cleaning nozzles B R HIBBERD and D T STANDING 22 May 1973 [8 Feb 1973] 6233/73 Heading B2F A nozzle 8 is cleaned by inserting it into the end of the barrel 1 of an air pump 1, securing it in place by a retainer 7 and operating the pump which may create pressure, or suction and pressure.
Patent GB-684779-A (GB)
Title: Improvements in fire resisting doors
Inventor: WARWICK KENNETH BERNARD
IPC: A62C2/22
Filed: 1950-03-13
Abstract: 684,779. Preventing fires. KING, Ltd., G. W. March 8, 1951 [March 13, 1950], No. 6250/50. Class 47(ii) [Also in Groups X and XXV] Fire-resisting doors 15 slidably suspended by bars 16 and rollers 17 from guide-rails 18 pivoted at 19 are held in horizontal position by a stirrup 20 which is supported by a cable 21 connected thereto by a fuzible link 24. Movement of the stirrup is limited by a fixed bracket 25. As shown, the cable 21 connects two stirrups associated with two pairs of doors on opposite sides of a doorway. The contacting edges of the doors are vertical when in the closed position and are notched at 26 and 27 for the track 11 and driving chain 14 of a travelling conveyer passing through the doorway. Switches 34 open when the doors commence to close for stopping the operation of the conveyer. The doors are guided by rollers 29, 30 and by a curved guide-piece 35. In a modification the doors are of trapezoidal shape and are provided with auxiliary panels adapted to close the doorway when the main doors are open, the connection between said panels and the main doors permitting relative movement between them.
Patent GB-1384875-A (GB)
Title: Tank cleaning apparatus
IPC: B63B57/02
Filed: 1971-03-09
Abstract: 1384875 Cleaning tanks GAMLEN CHEMICAL CO (UK) Ltd 18 Feb 1972 [9 March 1971] 6365/71 Heading A4F Tanks, particularly ships tanks, are cleaned by means of apparatus 16, which includes a rotating nozzle moveably supported by a track 1 which extends from the roof over the whole tank length the track being substantially parallel to the roof. The apparatus 16 is moved by a gas tight winch 8, a washing liquid hose extending from the apparatus 16 out through a tank opening 6. The track 1, which may be permanently mounted in the tank, may be curved to provide better cleaning access. When not in use, apparatus 16 is removed from the track 1, cable end 14 being attached to lug 15. In a modification, a continuous cable is attached to opposite ends of the apparatus 16, drive means then being able to move the apparatus 16 in both directions. The hose may be calibrated for determining the position of the apparatus 16 within the tank.
Patent GB-579871-A (GB)
Title: Pressure-actuated tubing anchor for wells
IPC: E21B23/04
Filed: 1944-04-06
Abstract: 579,871. Anchoring tubes in wells. SHELL DEVELOPMENT CO. April 6, 1944, Nos. 6504 and 6505. Convention dates, Feb. 16, 1943, and Oct. 30, 1943. [Class 85] Relates to a tubing-anchor for wells adapted to be set by fluid pressure and comprises a mandrel 10 carrying a member 13 held by a collar 15 with one or more ports 16 closed by discs 17, the member 13 having inclined faces 23 on which serrated slips 20 are slidably guided ; to the upper end of the mandrel is secured a tubular member 30 provided with a packed annular groove 31 and surrounded by a sleeve 40 with a thickened lower end 41 provided with a packed annular groove 44 and fitting slidably about the mandrel, ports 47 opening from inside the mandrel to a space 46 above said lower end 41 and resilient means such as a coil spring 50 acting between said lower end 41 and the member 13. The slips 20 have upwardly extending arms 55 held against the sleeve 40 by rings 65, 66 and provided with enlarged upper ends 56 bearing against a.slidable sleeve 70 bearing against a light spring 72 adjustably compressed by a nut 71 threaded on the sleeve 40. In use, the anchor is lowered by a tubing string 80; a tubing catcher 81 may be arranged below the anchor. A pump 82, with standing valve 83 and travelling valve 84, is then lowered and actuated through rods 85 to raise fluid, some of which passes through ports 47 to space 46, and as the pressure rises, the sleeve 40 is depressed and, through spring 72 and sleeve 70, the slips 20 engage the well casing 90. On removing the pump, pressures are equalized and the spring 50 raises the sleeve 40 to free the slips 20 ; if the pump is stuck, pressure may be built up to burst the discs 17 to equalize the pressures, or the tubing 80 may be removed and a tool lowered to engage a fishing neck 51 on the sleeve 40 and thereby remove the anchor. If desired, the anchor may be reversed end to end from that shown, discs 17, fishing neck 51 &c. being then omitted.
Patent GB-126427-A (GB)
Title: Machine for Filling Shells with Explosive.
Inventor: CAPSONI CARLO
IPC: F42B33/02
Filed: 1918-04-17
Abstract: 126,427. Capsoni, C. April 17, 1918. Explosives, apparatus for treating.-Relates to centrifugal apparatus for filling shells with explosive, and consists mainly in filling several shells simultaneously from one hopper R by means of an intermediate rotating hopper G which distributes the explosive to the several compartments N of a segmentally divided annular hopper M whence the explosive passes to the several shells through funnels K. The shells are carried in a tray T on a truck S running on rails R' on a table V, which is jigged violently by a shaft X driven by a belt Z from a main shaft D. The hopper G is rotated by a shaft E driven by worm gearing J from the main shaft D.
Patent GB-1012932-A (GB)
Title: Gas burners
Inventor: HUGHES FRANCIS
IPC: F23D14/04
Filed: 1963-02-19
Abstract: 1,012,932. Gas burners. SIDNEY FLAVEL & CO. Ltd. Feb. 13, 1964 [Feb. 19, 1963], No. 6573/63. Headings F4F and F4T. A gas burner comprises a head having a flash tube 17 extending to a port 19 in the region of normal flame ports 11. The burner head is in two parts 10, 12 connected by screws, the part 12 having a spigot 14 with a rib for locating the burner head on a mixing tube. The end of which, in use, is aligned with a hole in a cooker drip tray, a skirt 16 on part 12 extending over this hole. The mixing tube includes a pair of nozzles, one directed to flash tube 17 and the other to a second flash tube extending below the drip tray to adjacent a pilot flame. In use, gas-air mixture passes down both flash tubes and a flame front passes to port 19, which is in the form of a slot, to ignite the mixture at ports 11.
Patent GB-1146571-A (GB)
Title: Erosion shield materials
Inventor: JONES DAVID GERAINT
IPC: C22C19/07
Filed: 1966-02-15
Abstract: 1,146,571. Casting processes; working at specified temperatures. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 25 Jan., 1967 [15 Feb., 1966], No. 6589/66. Headings B3F and B3V. In order to improve the erosion resistance, a cobalt base alloy containing up to 35% Cr, up to 10% W and up to 2À5% C is melted and cast in vacuum followed by hot working at 1000- 1250‹ C. The alloy is vacuum melted in an induction furnace to form a consumable electrode which is subsequently vacuum arc melted then vacuum cast. The cast alloy may be extruded, forged or rolled more than 90% reduction in area.
Patent GB-879111-A (GB)
Title: Improvements in or relating to carburation systems
IPC: F02M17/42
Filed: 1957-02-27
Abstract: 879,111. Carburetting apparatus. GRILLET, L. Oct. 10, 1957 [Feb. 27, 1957], No. 6597/57. Addition to 772,438. Classes 7(2) and 7(3). A fuel supply system for an internal-combustion engine comprises extending from a jet carburetter a main induction pipe and an auxiliary intake passage distinct from the main induction pipe having an inlet communicating with the main induction pipe upstream of the throttle valve and downstream of the carburetter jet and an outlet which joins the main induction pipe immediately upstream of the junction of the latter with the engine whereby a part of the mixture is withdrawn from the main induction pipe upstream of the throttle valve and is returned to the main stream of mixture near the engine, the system further including means for regulating the relative proportions of the two mixtures and pressure sensitive means responsive to a pressure condition resulting from the operation of the engine for controlling the operation of the regulating means. In Figs. 1 and 2 the manifold is divided into two branches 19, 20 for supplying mixture to a four-cylinder engine. Mixture is drawn into the engine from the carburetter 11. Part of this mixture reaches the engine by way of the manifold 18, 19, 20. Another part of the mixture is diverted by way of 103 pipe 22. When a high negative manifold pressure exists, e.g. during idling operation it is communicated by way of pipe 66 to the chamber 56 to cause upward displacement of the diaphragms 47 and 51. Thus the flow through the pipe 22 is cut off by the piston valve 40. When the manifold negative pressure is decreased as in full speed operation of the engine or with the engine stopped the diaphragms assume the positions shown in the Figure. With the engine running the engine draws mixture not only through the manifold 18, 19, 20 but also by way of a circuit which includes pipes 33 and 34, branch lines 29 and 30, bore 28, duct 25 and pipe 22. Additional combustion air is admitted through duct 67 after a predetermined section of the duct 25 has been uncovered. The mixture fed to the engine over this circuit is a cool rich mixture. Adjustment of the knob 60 serves to modify the effect of manifold pressure variations. The additional air is adjustable from zero to a predetermined value. The manifold pressure controlling device 27 may be replaced by an alternative manifold pressure control. In Fig. 3 the tube 22 is replaced by a tube 80. Pipes (not shown) lead from opposite sides of the bore 91 one to each branch of the manifold at a point in the vicinity of the engine valves. The operation is similar to that of Figs. 1 and 2.
Patent GB-854102-A (GB)
Title: Process for the manufacture of aliphatic-substituted ketones
Filed: 1957-02-27
Abstract: Aliphatic-substituted ketenes are prepared by the thermal splitting of ketenisable aliphatic carboxylic acids containing at least 3 carbon atone, or esters or anhydrides thereof, in the vapour phase under reduced pressure in the presence of, as catalyst, an ester of a thiophosphoric acid, thiometaphosphoric acid, dithio pyro phosphoric acid or a thiophosphoramidic acid and if desired, a stabiliser to inhibit the reformation of the starting materials from the fission products, viz., ammonia, a primary, secondary or tertiary aliphatic amine or a heterocyclic nitrogen base, which may be added to the starting material or to the vaporous fission products.  The thermal splitting is normally effected at 500-1000 DEG C. under a pressure of 30-400 tor.  Examples describe the thermal splitting of propionic acid, butyric acid, diethyl acetic acid, isovaleric acid, caproic acid and 2-ethyl caproic acid to the corresponding ketones and acid anhydrides and p  of methyl propionate and propionic anhydride to methyl ketene, the reactions being effected in a chromium-aluminium-silicon steel tube, the catalysts being triethyl thio phosphate, tripropyl thiophosphate trimethyl thio phosphate, diethyl hydrogen thiophosphate, tetra ethyl dithio pyrophosphate, ethyl meta thio phosphate or thiophosphoric acid (diethylamido)-diethyl ester and ammonia or water is sometimes present.  It is stated that the use of triethyl phosphate as catalyst, alone or with carbon disulphide does not prevent carbon formation.
Patent GB-349134-A (GB)
Title: Improvements in typographical line composing machines
IPC: B41B11/18
Filed: 1930-02-28
Abstract: 349,134. Type-bar-maldng machines. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, and GAYTER, E., Newlands, Walton Road, Altrincham, Cheshire. Feb. 28,1930, No. 6638. [Class 100 (iii).] Assembling matrices.-Relates to means for guiding the matrices from the assembler-belt into the assembler of the kind comprising two side-rails 1, 4, Fig. 2, and an intermediate block 2, all of which are located between front and back plates 3, 5, so as to form an inclined channel for the matrices. According to the invention, the frontplate 5 is so mounted as to be movable in its own plane, in order to facilitate access to the star-wheel and to the belt-pulley. The back rail 1 and the block 2 are rigidly mounted on the back-plate 3, and the front rail 4 is secured to the front-plate 5, which is held in position by a bolt 6, passing through a slot 7a, Fig. 4, in a stationary bracket 7. A spring surrounding the bolt 6 presses the plate 5 towards the bracket 7, so that a locking-stud 5b engages a recess in the bracket. The plate 5 may be drawn forwards by means of a knob 5c, in order to disengage the locking means, and the plate may then be lowered and swung downwards into the inoperative position shown in Fig. 4.