baber/WOPTO huggingface dataset:
Patent GB-721732-A (GB)
Title: Valve construction
IPC: F16K31/122
Filed: 1952-12-08
Abstract: 721,732. Valves. JURS, A. E., YOUNG, R. M., JURS, E. E., JURS, P. C., and JURS, jun., A. E., [trading as SHAND & JURS CO.]. Dec. 8, 1952 [Dec. 8, 1951], No: 31118/52. Class 135. A valve comprises an annular closure member formed on the lower end of a cylinder and cooperating with a seat surrounding an outflow port, and remotely controlled fluid-pressure means for opening the closure member against a spring positioned between the closure member and a fixed piston over which the cylinder slides, there being apertures in the lower end of the cylinder leading to the outflow port so that the closure member will be urged to the closed position on the application of back pressure to the outflow port. As shown, the closure member 22 is a hollow body sliding on a stationary piston 31 carried by the container, e.g. a tank 17, and the top cover of the member 22 carries a piston 43 sliding in a cylinder formed in the stem of stationary piston 31. A ring projecting from the member 22 co-operates with an annular seat 56 on the tank to control the discharge of liquid from the tank to an outflow pipe 14. The member 22 is urged to the closed position by a spring 47, but fluid pressure applied through conduit 49 will act on piston 43 and raise the closure member. Should a back pressure occur in the pipe 14, this will be transmitted through apertures 61 to the liquid in the lower part 62 of the cylinder 22 and, due to the differential areas of the relevant surfaces, the member 22 will be forced to the closed position.
Patent GB-338107-A (GB)
Title: Improvements in or relating to the reception of wireless signals
IPC: H04B1/10
Filed: 1929-10-21
Abstract: 338,107. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Oct. 29, 1928, [Convention date]. Divided on 341,870, [Group XL]. Thermionic amplifiers and detectors. - In a receiver having one or more high frequency amplifiers with indirectly-heated cathodes fed from a common source, fortuitous coupling between the high-frequency stages is prevented by connecting a condenser 13 between the valve cathode and the centre point of a potentiometer 12 shunting the filament. A second condenser 14 may be similarly connected to ensure symmetry.
Patent GB-774219-A (GB)
Title: Snap action device
Inventor: FLIGHT THEODORE NICHOLAS
IPC: G05D23/02
Filed: 1954-10-28
Abstract: 774,219. Snap-action springs. RHEOSTATIC CO., Ltd. Oct. 28, 1954, No. 31143/54. Class 108(3). [Also in Groups XXIX and XXXVII] A snap-action device comprises a sheet or strip A of metal, formed with corrugations 1, which are partially flattened near opposite edges X Y of the sheet. In Fig. 5, the strip A carries contacts 9, 10 which co-act alternately with contacts directly below on a base B. The centre point of the strip A between the contacts 9, 10 is held in contact with a support point on the base B by a spring tongue 14. The corner D of the strip A is held to the base B, and it is acted on by a stop screw 15. The actuating pressure is applied at any point 16, between the screw 15 and the corner of the strip A opposite to the corner D. The strip A in this construction, is self-returning after removal of the actuating pressure. The latter may be derived manually, from a pressure-operated bellows or from a heat-responsive device. The snap action may be initiated by a twisting action of the strip or sheet. The device may be used to operate a gas control valve (see Group XXIX).
Patent GB-1500561-A (GB)
Title: Trunking
IPC: H02G3/04
Filed: 1976-07-23
Abstract: 1500561 Cable ducting GILFLEX CONDUITS Ltd 23 July 1976 [25 July 1975] 31169/75 Heading H2C Cable ducting comprises an elongate base 1 with at least two parallel ribs 3 set inwardly from the edges of the base, a main cover 6 secured between the or each pair of ribs, elongate side covers 7 secured between an edge of the base and the adjacent rib 3 to form side passages and small transverse wiring ducts 22 passing through a side cover and adjacent rib into the main passage. A number of main covers may be provided and each cover may enclose a number of subsidary ribs. Transverse ducts may extend through adjacent ribs from one side passage to another. The ducts may form room fittings, e.g. skirtings and the side covers may be shaped or decorated accordingly. The covers are a snap fit on the base the arrangement being such that the main cover(s) can only be removed when the side covers have been removed. Accessories may be mounted on the main cover. The duct may be of PVC and may be secured by adhesive to a wall or other surface.
Patent GB-1236763-A (GB)
Title: An earth-excavating or shifting tooth and tooth-holder assembly
IPC: E02F9/28
Filed: 1968-07-01
Abstract: 1,236,763. Excavator teeth. ORENSTEIN & KOPPEL A.G. 1 July, 1968 [29 June, 1967], No. 31284/68. Heading E1F. Clamping of the shank of a digger tooth 3 in a holder 1 is caused on screwing on of the nut of a nut and bolt assembly 8 extending transversely through the holder and the shank since the assembly, which passes through and bears against a tongue 7 defined by a slot 6 in the wall 1b of the holder, then causes the tongue tobe pressed inwards against the preferably enlarged end of the shank.
Patent GB-190429-A (GB)
IPC: F04D29/46
Filed: 1922-12-16
Abstract: 190,429. Akt.-Ges. Brown, Boveri, et Cie. Dec. 27, 1921, [Convention date]. Regulating and controlling.-When the units of a turbo-compressor are changed from parallel.connection to series connection to increase the pressure, the diffusers are operated at the same time for the maximum opening so that the volume of the air delivery does not diminish. In the parallel connection air enters the pipes 3, 3<1> and is discharged through the delivery pipe 6. To change to the series connection, the valve 1 is operated by the hand-wheel 2 and the discharge from the first half is sent through the pipe 7 and then through the second half to the delivery pipe 6; the valve 4 is closed automatically. The diffusers are simultaneously operated from the hand-wheel 2 through the gearing 8.
Patent GB-1210298-A (GB)
Title: Crimped trays of metallic foil and their manufacture
Inventor: THORN STANLEY EDWARD
IPC: B65D1/26
Filed: 1968-07-02
Abstract: 1,210,298. Laminated tray. BOWATER PACKAGING Ltd. 19 June, 1969 [2 July, 1968], No. 31476/68. Heading B5N. [Also in Divisions A4 and B6] A crimped tray comprises two separate layers, one of metallic foil e.g. aluminium and the other of paper, the layers being unattached except by mechanical interlock between crinkles in the two layers and by the peripheral edge of the metallic layer being rolled over to embrace the peripheral edge of the paper layer. The tray is produced by superimposing the metallic foil and paper layers and shaping the layers together into a tray having a rolled-over beaded edge, the layers during shaping of the tray deforming and crimping independently of each other.
Patent GB-1196254-A (GB)
Title: Manufacture of Maps of Functions of a Variable Against Planar Coordinates
IPC: G03F1/88
Filed: 1967-07-10
Abstract: 1,196,254. Making maps. INTERNATIONAL BUSINESS MACHINES CORP. 10 July, 1967 [12 July, 1966], No. 31606/67. Heading G5G. [Also in Divisions G2-G3 and H4] A microwave or laser ranging system 1 scans a line 2 in a region of terrain, a pulse being transmitted to and reflected back by various points 2a-2f via a beam B. The transmitted and received pulses are used to control the opening period of a shutter 5, which in turn controls the quantity of light from a laser 6 falling on points 10a-10f of a line 10x in a photographic emulsion 10, the laser beam scanning along this line in synchronism with the scanning of the beam B. Several lines 2 are scanned. The emulsion 10 is backed by a reflective surface 11 so that standing waves are set up therein, as in Lippmann photography, the silver halide of the emulsion being sensitized in strata which, after developing and fixing, form reflecting strata of metallic silver in the emulsion. These reflecting strata are spaced apart by different amounts at the different points 10a-10f since on developing and fixing the emulsion shrinks to an extent inversely depending on the length of exposure time. Illumination of the developed emulsion with monochromatic light causes only those points, the distance of which from the system 1 gives rise to the appropriately spaced reflecting strata, to be illuminated. Illumination with white light causes the points to appear as different colours, points the same distance from the system 1 being the same colour. The light reflected from the developed emulsion may be projected via a lens (34) (Fig. 4, not shown) on to a screen (35).
Patent GB-365201-A (GB)
Title: Improvements in mixing bowls
IPC: A61C5/68
Filed: 1930-10-21
Abstract: 365,201. Mixing-appliances. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Detroit Dental Manufacturing Co. ; 6081, 12th Street, Detroit, Michigan, U.S.A.) Oct. 21, 1930, No. 31607. [Class 86.] A mixing - appliance for dentists' use comprises a rubber bowl A having a flared mouth fitted with a rigid cover B which carries the stem of a mixing blade E and hand - operated multiplying gearing H, M which lies in the plane of the top of the bowl.
Patent GB-281644-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C13/00
Filed: 1927-11-24
Abstract: 281,644. Brillou, L. Dec. 4, 1926, [Convention date]. Extincteurs; chemicals.-In an extincteur of the inversion type provided with valve means for sealing the outlet from the inner to the outer container and also the outlet from the outer container to the atmosphere, the inner container 17, which is a sliding fit in the outer vessel 1, has a, perforated upper extension 27 and a partition 19 with a valve seat 20. The extinguisher is closed by a cap 3 pressed against a washer 4 by a ring 5, the cap 3 being formed with a mixing chamber 6, outlet nozzle 16, valve seat 14, and perforated extension 7. Threaded in the extension 7 is a spindle 9 carrying a valve 12 to co-operate with the seat 14 and so seal the outlet from the extincteur to the atmosphere, and also a rubber cone or other valve 21 co-operating with the seat 20 to seal the inner container. The valve 21 is carried by a rod 22 slidable within the hollow lower end of the spindle 9 and held downwardly by a spring 23. A circular guide washer 26 is provided for the rod 22. Panama wood is added to one of the reacting solutions as a foam generator.
Patent GB-1356161-A (GB)
Title: Process for the hydrogenative cracking of hydrocarbon oils
IPC: C10G65/10
Filed: 1971-07-06
Abstract: 1356161 Hydrocracking SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 6 July 1971 [8 July 1970] 31632/71 Heading C5E A hydrocarbon oil is hydrocracked and fractionated, and a higher-boiling fraction subjected to a second hydrocracking together with added kerosine. The product of this second hydrocracking is returned to the fractionator. As shown, a heavy gas oil is supplied at 1, receives hydrogen from a line 2 and is heated in a heatexchanger 4 and a furnace 7. It is passed through beds of catalyst in a cracker 9, temperature being controlled by the addition of cold gas at 10<SP>1</SP>, 10<SP>11</SP> and 10<SP>111</SP>. The effluent is cooled in the heat exchanger 4, mixed with effluent from the second cracking stage via line 12 and cooled at 14. Gas and liquid phases are separated at 16, ammonia and H 2 S are washed out of the gas at 18, and the gas recycled through the line 10 with make-up at 22. The liquid from the separator is fractionated in three columns 24, 27 and 31, from which are taken off hydrocarbons up to butane at 25, a light gasoline (up to 80‹ C.) at 28, a naphtha (80-150‹ C.), suitable for reforming, at 29, and oil boiling at 150-270‹ C, suitable for aviation fuel, at 11. The bottoms from the last column 31 are taken off by line 32, a straight-run kersonine is added by line 3 and hydrogen by line 33. The mixture is heated in heat-exchanger 35 and furnace 38 and cracked in cracker 40 with gas quenches 33<SP>1</SP> and 33<SP>11</SP>. The effluent from the second cracking is cooled in heat-exchanger 35 and taken by line 12 to be mixed with that from the first cracking. The first-stage catalyst is preferably sulphur-resistant, and may have a support of silica, alumina, magnesia, zirconia, titania, P 2 O 5  9r boria, with a hydrogenating component of Cu, Ag, W, Mo, Co, Ni, Pt or Pd, as metal, oxide or sulphide, and activated with fluorine. The second-stage catalyst may be sulphur-sensitive, and may have a support that contains silica and one or more of Al 2 O 3 , MgO, ZrO 2 , TiO 2  and B 2 O 3 , e.g. a zeolitic molecular sieve, and may have the same hydrogenating components and activator.
Patent GB-1534164-A (GB)
Title: Electronic switching arrangement
IPC: H04N5/268
Filed: 1976-07-30
Abstract: 1534164 Master-slave flip-flop circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 July 1976 [4 Aug 1975] 31826/76 Heading H3T In an electronic switching arrangement including a master-slave flip-flop 1, a charge-discharge circuit 5-12 is connected to a condition input of the flip-flop and is operated in a charge or discharge mode in dependence on a switch 8 and the operation of the arrangement is such that when the switch 8 is moved to its operating position 10 the condition input J, K is held at or beyond a threshold level (Fig. 2, not shown) for a period and if during that period a pulse train T from 2 applied to the flip-flop is in its first state this causes a change of condition in the master of the flip-flop and this change causes the state present at the output Q 1  of the flip-flop to be reversed when the pulse train goes to its second state (at t 1 ). The push-button switch 8 is normally biased as shown and when pressed (at t 0 ) a capacitor 6 is charged and the JK inputs are held at or beyond the threshold level for a period. A change in output at Q 1  under the conditions described above is indicated by a lamp 13 and can be used at 4 for control of a television camera and signal processing and video switching equipment. When pressing of the switch 8 ends (at t 3 ) the capacitor 6 discharges via resistors 5 and 11. When the switch 8 is again pressed (at t 5 ) to charge the capacitor the voltage at the JK inputs is at or beyond the threshold level when the pulse train T is in its first state (at t 6 ) and the condition of the master of the flip-flop is changed. When the pulse train T next goes to its second state (at t 8 ) the output Q 1  of the flip-flop is reversed. The input 3 can be supplied with a logic O blocking signal to inhibit output Q 1  from this flip-flop. Mutual locking between electronic switches of the kind shown in Fig. 1 can be obtained by connecting the Q 2  output of an electronic switch to the input 3 of another electronic switch so as to cause its flip-flop 1 to be blocked when a logic O is obtained on the Q 2  output.
Patent GB-625847-A (GB)
Title: Improvements in or relating to synthetic resinous products
IPC: C08G16/02
Filed: 1946-10-26
Abstract: Furfuryl alcohol-furfuraldehyde condensates capable of being hardened by addition of usual hardeners are obtained by adding an acid having a dissociation constant within the range 2.0 X 10-1-2.0 X 10-4, e.g. phosphoric, benzene sulphonic, or toluene sulphonic acids, to furfuraldehyde, allowing the mixture to stand and subsequently adding furfuryl alcohol, the subsequent reaction being maintained below 35 DEG  C.  Suitable proportions are 5 parts acid, 20 parts furfuryl aldehyde and 80 parts furfuryl alcohol.  The product is suitable for casting and may be cured by further heating, preferably with the addition of moderately reactive acid.  The resin may be stored by neutralisation with ammonia.
Patent GB-653791-A (GB)
Title: Fire extinguishing system
IPC: A62C99/00
Filed: 1947-12-02
Abstract: 653,791. Storing gases. SPECIALTIES DEVELOPMENT CORPORATION. Dec. 2, 1947, No. 31838. Convention date, May 5, 1946. [Class 8(ii)] [Also in Group XXI] In a carbon dioxide &c. fire extinguish ing system, each pair of cylinders 11 is independently operable by manual actuation of a pilot valve 36<SP>1</SP>, while operation of a pair of cylinders 10 by actuation of pilot valves 36 effects the operation of all the cylinders 11 by pneumatic actuation of their valves 36<SP>1</SP>. Opening of a valve 36' allows gas from the cylinder 11 to operate a piston 20 to open the main valve 14 of the cylinder thereby releasing gas to a delivery conduit 25 through a check valve 26. The valve 14 is held open by gas supplied through. a byepass 32. Opening of valves 36 by a cable 40 allows gas from the cylinders 10 to operate pistons 20 to open the main valves of the cylinders 10 thereby releasing gas to the delivery conduit through a check valve 26. Gas from the conduit 25 passes through a branch conduit 47 to operate the pilot valves 36<SP>1</SP>. Check valves 34, 37 and 49 are provided.
Patent GB-445489-A (GB)
Title: Improvements in incandescent electric lamps
IPC: H01K9/04
Filed: 1934-11-06
Abstract: 445,489. Two-part couplings. DEZSOE, Z., 13, Valentines Road, Ilford, London. Nov. 6, 1934, No. 31875. [Class 38 (i)] A multiple-filament lamp is provided with a remov able strip-like conducting member d of length sufficient to bridge between twc spaced contacts on the end face of the cap, the under side of the conducting member being provided with an insulating layei f, and one end being provided with a depending member e adapted to fit into a socket formed in one or both of the contacts b, c, so that when the member d is connecting a lampholder contact to a selected filament contact the other filament is positively insulated. The Figure shows a bayonet cap construction, with a third contact on the end face connected to a leading-in wire a which is common to both filaments. The filaments may be connected in parallel by removing the insulation from the underside of the conductor d. In a modification one contact only is socketed to receive the securing pin at the end of the conducting strip, so that on the burning-out of the filament connected to that contact it is necessary to remove the insulation from the conducting-strip to enable the end of the latter to bear upon a flush contact connected to another filament. In a further modification the conducting strip has a securing-pin at each end to engage within corresponding sockets in the cap contacts, these pins being of unequal lengths and the shorter being provided with removable insulation which keeps the associated filament out of circuit until required.
Patent GB-847608-A (GB)
Title: Improvements in or relating to pressure regulators
IPC: G05D16/18
Filed: 1956-10-19
Abstract: 847,608. Fluid-pressure servomotor control systems. REACTION MOTORS Inc. Oct. 19, 1956 [Oct. 19, 1955], No. 31918/56. Class 135. A pressure regulator for highpressure liquids or gases comprises coaxial inlet and outlet connections 10, 12 respectively, a piston 20 carrying a sealing ring 22 and movable in a chamber 18, a tubular extension 28 to the piston extending towards the inlet 10 and coacting with a fixed seat 30, 36, and auxiliary valves 42, 60 mounted on a common spindle 58 and controlling communication of the chamber to the right of the piston 20 with the inlet and outlet of the regulator. Outlet pressure has access, through openings 25 in an extension 24 of the piston and a port 68, to a diaphragm 40 connected to the valves 42, 60 whereby the valves are positioned in accordance with the outlet pressure which is opposed by an adjustable spring 48. When the outlet pressure is low the diaphragm 40 is urged towards the right to close the valve 42 and open the valve 60 thereby admitting inlet pressure through a passage 64 and port 66 to the right-hand side of the piston 20 to move the latter against a loading spring 21 to open the main valve. When outlet pressure reaches the desired value the diaphragm 40 is operated to move the valve 60 towards closure and the valve 42 away from its seating thereby bleeding the chamber to the right of the piston 20 to the outlet to allow the piston 20 to move the main valve towards closure.
Patent GB-847755-A (GB)
Title: A torsionally flexible joint
Inventor: DONNER JOSEF
IPC: F16D3/56
Filed: 1958-10-07
Abstract: 847,755. Universal joints. KAUERMANN, U. Oct. 7, 1958, No. 31933/58. Class 80 (2). [Also in Group XXXII] In a torsionally flexible joint between concentric members 1, 5, shown as a double universal joint for connecting two shafts 1, 2, and of the kind wherein a pack of axially aligned split-spring rings 9 of square or trapezoidal section are precompressed in complementary semi-cylindrical recesses in the concentric members 1, 5, the spring rings 9 are vulcanized in a rubber cylinder 10, in axiallyabutting or spaced relation. The rubber cylinder may have an internally hollow tube and split external shells, and be located on the hub by circlips. The outer member 5 may be centred on a spherical surface 3 on the inner 2.
Patent GB-462064-A (GB)
Title: A locking device for wheel covers of textile spinning and twisting machines
IPC: D01H5/18
Filed: 1935-11-19
Abstract: 462,064. Machinery guards. TWEEDALES & SMALLEY (1920), Ltd., and TOMLINSON, H. Nov. 19, 1935, No. 31971. [Class 80 (iv)] In ring - spinning frames having gears enclosed by covers A and doors B in known manner, the belt-shift fork C is fitted with a cranked arm D on which are mounted two pins d<3>, passing through holes in the front panel E, and two rods d. The latter pass through the frame end G and their ends are connected by a bar d<1>. In the position shown, with the belt on the fast pulley H, access to the gears is prevented owing to the bar d<1> preventing opening of the draft wheel covers A, and the pins d<3> looking the halves of the twist wheel cover B. When the belt is shifted to the loose pulley J, the bar d<1> passes into a recess and the pins d<3> are moved out clear of the cover B.
Patent GB-603127-A (GB)
Title: Improvements in or relating to overhead lighting systems
IPC: F21V21/38
Filed: 1945-11-27
Abstract: 603,127. Supporting lamps. WILSON, W. Nov. 27, 1945, No. 31972. [Class 75(iii)] [Also in Groups XXV and XXX] A number of lighting fixtures 1, are supported by a cable 3 engaging pulleys 2 in overhead hoods 16 and pulleys 4 on the fixtures 1. Each fixture is provided with a cord 8 which may be engaged by a hook 9 to allow the fixture to be lowered, a counterweight 7 being provided with a latch 13 engaging a hook 14 to maintain the fixture in position when lowered. The fixture is held in raised position, by latch members 17, Fig. 2, or a slotted bar 35, Fig. 7. The cord 8, Fig. 2, is attached at each end to a latch member 17 with a lug 21 to which is attached a spring 20 fixed at its other end at 22 to one of two brackets between which the latch slides so that the latch is urged into position with the pulley 4 over the pulley 2. Toggle links 25, 27 pass a deadcentre position when the cord 8 is pulled so that the latches 17 are drawn back and the fixture can be lowered. An abutment 31 is provided to engage an extension 32 of the link 27 and break the toggle when the fixture is again raised. The latches are mounted in their brackets by rollers 33 mounted on bearing pins secured to the brackets and operating in slots 30, 34 of the latches. The cord 8, Fig. 7 is attached at one end to a lug 52 on the reflector 19 and at the other end to a lug 53 on a sliding bar 35, urged by a spring 37 and supported by latches 45 with hooked ends 50, Fig. 10 and urged apart at their upper ends by a spring 48. The bar 35 is provided with lateral recesses 51 so that when the cord 8 is pulled these recesses are brought opposite the ends 50 and the fixture may then be lowered. Quadrant gears 41 may be provided engaging a rack 43 on the bar 35 so that movement of the bar rocks the gears 41 and moves pulleys 44 on the gears downwardly, causing the cable 3 to be inclined downwardly between the pulleys 2 and 44 and prevent too rapid downward movement. Connector elements 11 may be provided on the fixtures to engage overhead elements 10 to complete an electric circuit when the fixture is in its raised position.