baber/WOPTO huggingface dataset:
Patent GB-974592-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F01K23/10
Filed: 1963-08-01
Abstract: 974,592. Heating and supplying boilers' feedwater. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 1, 1963 [Aug. 2, 1962], No. 30627/63. Heading F4A. In a method of heating a liquid, especially boiler feedwater, by indirect heat exchange with combustion gases containing corrosive condensible vapours so that condensation of said vapours on the surfaces of the heat exchanger does not occur, the liquid to be heated is admitted to a heat exchanger disposed outside the combustion gas flow wherein it is heated by and mixed with heated fluid coming from a heat exchanger contacted by the gas, a portion of this heated mixture being diverted through a loop including the latter heat exchanger at a temperature above the dew point of the corrosive vapours to provide said heated fluid, whilst the remainder of the mixture is withdrawn for use at the same rate at which liquid is admitted to the external heat exchanger. In the apparatus shown, a gas turbine 11 and a steam turbine 12 drive a shaft 13 connected, for example, to a ship's propeller or an electrical generator. Hot exhaust gases from the gas turbine 15 flow through a duct 20 to a stack 21 containing a waste heat boiler 33c, an economizer 33b and a heat exchanger 33a, the latter operating according to the invention at a temperature above the dew point of the gases. Steam from the boiler passes to the turbine 12 through a pipe 22, the turbine exhausting into a condenser 30. Condensate is extracted by a pump 32 and delivered into the external heat exchanger 37 in the form of an upwardly-directed spray. The sprayed water is heated by direct contact with steam delivered into the external heat exchanger from a pipe 47 connected to a header 43 located in the stack 21 and forming part of the internal heat exchanger 33a, the steam condensing and collecting with the feedwater in the bottom of the heat exchanger 37 whence it is withdrawn by a feed pump 49 and delivered through the economizer 33b to the boiler 33c. A branch pipe 46 conveys some of the water, which is now at a temperature exceeding the dewpoint of the gases in the stack 21 to a header 42 whence tubes 44 convey it to the header 43, the headers and tubes constituting the heat exchanger 33a. The water level in the external heat exchanger 37 is controlled by an overflow duct 62 leading to a make-up tank 61, the amount of make-up which flows directly to the condenser 30 through a pipe 63 being determined by the setting of a valve 64 responsive to said level. The heat exchanger 37 is located so that the level therein and the level in the header 43 are the same. Non-condensible gases evolved from the feed water on heating are discharged through a vent 41, whilst excess low pressure steam is bled to the turbine through a line 71, or to auxiliary services through a valve 73. If the pressure in the heat exchange 37 drops below a preset value a valve 69 in a pipe 68 opens to admit superheated, high pressure steam to the heat exchanger. High pressure steam for auxiliary use can be withdrawn through a valve 76.
Patent GB-431019-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J21/20
Filed: 1934-10-26
Abstract: 431,019. Thermionic valves. ROGERS RADIO TUBES, Ltd., 100, Sterling Road, Toronto, Canada. Oct. 26, 1934, No. 30728. Convention date, Dec. 1, 1933. [Class 39 (i)] A multiple valve comprises one electrode system, such as a pentode, having one or more screen grids including an accelerating grid 4, Fig. 3, and a full wave rectifier of which the cathode 20 is connected to the accelerating grid. For convenience the rectifier comprises two cathodes each co-operating with an anode 10, 11 and electrically connected. As shown in section in Fig. 2, each cathode 20 is surrounded by a ceramic tube porous to electrons and enclosed by cylindrical portions of the anodes 10, 11 which are placed side by side with flat portions parallel with and juxtaposed to the main anode 6. An electrostatic screen in the form of a ferrule closing the top of the electrode system minimizes hum due to the alternating potential impressed on the rectifier. The heaters 8, 9 of all the cathodes are connected in parallel.
Patent GB-938326-A (GB)
Title: Method of laterally stretching continuous sheet material
IPC: B29C55/08
Filed: 1962-08-10
Abstract: Continuous sheet material is laterally stretched by being confined between two endless bands of an elastic material, said bands extending over the whole width of the sheet material, and being moved forward simultaneously with the conveyance of the sheet material as it is gradually distended transversely to the conveying direction. Endless bands 5, 6 of elastic material may be used which are passed over rollers 7, 8, 9 the material distance of which is so adjusted that the bands undergo a contraction in the longitudinal direction simultaneously with the distention in the transverse direction.  This contraction may be assisted by the use of endless bands of rubber in which diagonally-running threads 16 are incorporated.  During distention the endless bands may be pressed against each other and the interposed sheet material 13 by means of compressed air supplied through inlets <PICT:0938326/IV(a)/1> <PICT:0938326/IV(a)/2> 12 boxes 10, 11.  The bands may be contracted with beaded edges 14 which engage rollers 15 and thus distend the bands 5, and 6, together with the interposed film 13, laterally during passage from rollers 7 to rollers 8.  Between rollers 8 and rollers 9 the band is allowed to contract laterally, but this movement is not transmitted to the film, which is no longer confined between the bands (see Fig. 1).  Nylon and polyethylene films may be stretched laterally by the process of the invention.
Patent GB-230767-A (GB)
Title: Improvements in or relating to children's scooters
IPC: B62M1/00
Filed: 1924-12-22
Abstract: 230,767. Hervey, B. E. Dec. 22, 1924. Foot cycles. - A scooter adapted to be propelled either by pushing off from the ground, or by means of a pedal and crank, comprises a main frame formed of two bars 1, 2 off-set at 3, 4 to provide room for the rear wheel 5 and for a sprocket and chain driving-gear 8, 10, actuated by a crank 12 and pedal 13 on one side of the scooter. A sub-frame formed of bars 23, 24 connected to the rear of the main frame supports a platform or foot-board 31 on the other side. The forward ends of the frames are hinged to the steering pillar 19, the front element of each hinge being secured between the bars 18 of the pillar and the rear element between the bars 1, 2 or 23, 24.
Patent GB-365593-A (GB)
Title: Improvements in and relating to the construction of tunnels
IPC: E21D11/14
Filed: 1930-10-15
Abstract: 365,593. Walls. TOWNLEY, J. C., 53, Victoria Street, London. Oct. 15, 1930, No. 30905. [Class 20 (iv).] In a tunnel &c. lining comprising connected metal segments with inwardly-extending flanges, the cells between the flanges are not filled but an inner lining of reinforced cement &c. is connected to or associated with -the flanges and forms a closure for the cells. In Figs. 2, 4, and 5, recesses are cut at intervals in adjoining faces of flanges 17, caulked with lead &c. 21, and eye members 22 fixed therein with lead, lead-wool, or grouting 23 ; backing 15 is then held to the flanges 17 by springs 24 engaging the eye members to which wire fabric 18 is also connected by hooks, ties, &c. Gauge screeds 26 may also be secured to the eyes by U-bolts, and cement &c. is then applied as by a pneumatic cement gun, the fabric 18 preferably being central of the inner lining thus formed. The backing 15 may comprise mesh fabric 15a and sheet material 15b connected by projecting loops 15c and keys 15d, or Essex boards, Masonite &c. may be used, apertures being left therein through which the cement &c. passes to form studs connecting the inner lining to the flanges. In Fig. 6, the backing 15 is held by spring clips 43 held by hooks 28 engaging the bolts connecting the lining segments, the fabric 18 being tied &c. to the hooks, while in Fig. 8, spiral springs 30 hold the backing 15 and the fabric 18 is tied to wires 32, the springs 30 and wires 32 being engaged by the hooks and held by ties 34 ; the hooks may be held between nuts on the bolts. In Fig. 11, the screeds 37 are held by bolts 38 and distance pieces 41, and comprise lengths of channel iron connected by fishplates.
Patent GB-328934-A (GB)
Title: Improvements in and relating to cellulose esters or ethers and their uses
IPC: C09D101/08
Filed: 1928-10-25
Abstract: 328,934. Davies, G. P., Jenkins, W. J., and Imperial Chemical Industries, Ltd. Oct. 25, 1928. Emulsions, making.-Aqueous emulsions of cellulose esters or ethers, for use as lacquers, enamels and the like, are prepared by dispersing the ester or ether, dissolved in a solvent, in water containing a small quantity of emulsifying agent comprising, for pigmented products gelatine, or alkali casein, and for unpigmented products, a soap. The solvent employed is immiscible, or only slightly miscible with water, and of volatility permitting sufficiently rapid drying without precipitation of the cellulose ester or ether. Additional emulsifying or other agents may be employed in small quantities, e.g. saponin, sulphonated or nitrated castor oil, alginic acid salts or the sulphonated products of Specification 274,611. Suitable solvents for nitrocellulose are stated to be methyl cyclohexanone, cyclohexanol acetate or butyl propionate. The products obtained are suitable for spraying or brushing depending on the proportion of water employed or the viscosity of the water phase. Examples of the invention are as follow-(1) A solution of 12 parts nitrocellulose, 4 parts gum dammar, 6 parts tricresyl phosphate, and 8 parts chrome green in 40 parts butyl propionate is added slowly with stirring to a solution of 0.5 part gelatine in 60 parts water. The product is passed through a colloid mill. (2) A solution containing 12 parts nitrocellulose 0.5 part oleic acid, 4 parts of the phenol-formaldehyde resin Albertol 82G, 4 parts castor oil, 2 parts dibutyl phthalate, 30 parts methyl cyclohexanone, 10 parts butyl alcohol and 10 parts benzol is added in a colloid mill to 80 parts water containing 0.05 part caustic soda. A little gelatine may be added to the product. Specifications 264,860; and 309,964, [Class 95, Paints &c.], are referred to.
Patent GB-996786-A (GB)
Title: An electrolysis cell with substantially vertical bipolar hollow plate electrodes
IPC: C25B9/14
Filed: 1963-08-06
Abstract: A vertical type filter press moving mercury cathode brine cell comprises hollow bipolar electrodes each consisting of a body having a wall of porous material and filled with mercury which percolates through the porous face to form a downwardly moving cathode film, the other wall of the body being anodic and coated with a mercury-impermeable conductive material resistant to chlorine, means being provided for continuously replacing the mercury within the hollow electrodes.  The porous wall may be of ceramic, glass, plastic, or sintered metal, e.g. titanium, while the anode wall may be of platinum-plated titanium sheet. The pore size of the porous wall preferably decreases towards the bottom while the wall thickness increases towards the bottom.  The electrodes instead of being strictly vertical may be inclined at 1-10 degrees to the vertical.
Patent GB-680456-A (GB)
Title: Improvements in multi-break electric circuit breakers
Inventor: FLURSCHEIM CEDRIC HAROLD
IPC: H01H33/59
Filed: 1949-12-02
Abstract: 680,456. Arc-rupturing in switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 21, 1950 [Dec. 2, 1949], No. 31025/49. Class 38 (v) In a multi-break switch having two or more seriesconnected, arc-extinguishing contact breaks 1, 2 with parallel impedance elements 5, 6 the or each common parallel connection comprises a currentlimiting impedance 7, so that if on opening the switch, an arc persists across one break, the current passing through the arc at this break and the impedance or impedances in parallel with the other break or breaks has to pass through and is limited by the or an impedance 7. The or each impedance 7 is preferably a linear resistor and the impedances 5, 6 may be non- linear resistors having a characteristic such that the resistance falls with increase of applied voltage.
Patent GB-230538-A (GB)
Title: Improvements in or relating to electric relays
IPC: H01H50/30
Filed: 1923-12-11
Abstract: 230,538. Reyrolle & Co., Ltd., A., and Piquet, J. Dec. 11, 1923. Electromagnetic switches.-In order to ensure an unvarying contact pressure between relay contacts more especially those operated by alternating currents, the contacts are arranged to be held apart whilst the relay is de-energized, but are allowed to close under spring pressure when the armature is attracted. The contact D' on the spring D is held away from a contact F on a. spring F' by a projection F attached to a light plate armature B pivoted at B<2>. When the relay is energized, causing the movement of the armature B in a substantially parallel direction to the pole pieces of the U-shaped electromagnet A the spring E raises the contact D' into engagement with the contact F and as the projection E is lifted clear of the spring D any chattering of the armature does not affect the contact pressure. A further pair of contacts D<2>, F<2> may be provided, the former carried by a spring D<3> secured to the spring D and the latter by a spring F<3>. An adjustable stop G limits the downward motion of the armature B. The gap between the armature and core may be adjusted by raising or lowering the plate B<3> carrying the pivot B<2>.
Patent GB-365175-A (GB)
Title: Improvements in machines for the manufacture of electric cables
IPC: H01B13/00
Filed: 1930-10-17
Abstract: 365,175. Winding cables. COMPAGNIE GENERALE D'ELECTRICITE, 54, Rue la Boetie, Paris. Oct. 17, 1930, No. 31197. Convention date, Nov. 30, 1929. [Class 120 (ii).] In a cable-making machine a winch F upon which the cable is wound is mounted with its axis x, y inclined to a plane perpendicular to the axis of the machine C at an angle equal to the helical angle of twist of the cable on the winch drum, and the winch is given a translatory motion along the axis x, y so that the portion of the cable between the machine C and the winch F always lies in the axis of the machine C. The machine C, if of a reversible nature, may have a winch at each end. The winch drum, which is preferably detachable, may be sufficiently large to carry an entire manufacturing length of cable.
Patent GB-969860-A (GB)
Title: Multi-layer silicone rubber insulation
Inventor: NOWAK PAUL
IPC: H01B3/46
Filed: 1961-08-30
Abstract: 969,860. Electric cables. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Aug. 30, 1961, No. 31214/61. Heading H1A. Insulation material for electric conductors comprises a layer of hot-vulcanizing, and a layer of cold-vulcanizing silicone rubber, the layers being separated by a layer or coating of esters of silicic or titanic acid. The hot-vulcanizing layer may contain a silica gel as filler and the cold-vulcanizing layer silicic acid esters of mono- or multi-functional aromatic alcohols as slow-acting cross-linking agents. The rubber layers may be in strip form and wound helically on the conductor, the separating layer being applied as a solution. Typical compositions are: (a) for the hot-vulcanizing layer, dimethyl polysiloxane containing 30% silica gel and 2-3% benzoyl peroxide; (b) for the cold vulcanizing layer, dimethylpolysiloxane containing 30-40% filler such as chalk or deatomaceous earth, 1-10% of butyl alcohol-silicic acid ester, and 0.1-2% of dibutyl dilauryl stannate, and (c) for the intermediate coating, a solution in aceto-acetic ester of equal parts of tetraethyl silicate and dibutyl titanate.
Patent GB-426186-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/54
Filed: 1934-10-31
Abstract: 426,186. Metallic vapour lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 31, 1934, No. 31237. Convention date, Nov. 1, 1933. Drawings to Specification. [Class 39 (i)] In an electric lamp of the type comprising a pair of electrodes of refractory material in an atmosphere of vapourisible metal, and a metallic filament in parallel to the arc gap thus formed and with its ends more widely spaced than the electrodes, the middle portion of the filament is wound with a coil of higher pitch in the middle than at the ends, or with the middle portion straight, in order to diminish risk of short circuiting by metal condensing on the filament.
Patent GB-502533-A (GB)
Title: Improvements in and relating to rotary machines for well drilling
IPC: E21B3/04
Filed: 1938-10-28
Abstract: 502,533. Drilling wells. NATIONAL SUPPLY CORPORATION, and OIL WELL ENGINEERING CO., Ltd. Oct. 28, 1938, No. 31271. Convention date, Nov. 6, 1937. (CI!l8s 86] . A guard for the rotary table of a well-drilling machine comprises a member adapted to sur. round the whole or a part of the table and having openings for the introduction of fluid to scavenge the space between the guard and the table. In Figs. 2 and 3, the guard 11 is sup ported adjacent the table 2 by columns 12 carried in openings in the base 1, the guard having horizontal and vertical walls 13, 15, connected by curved part 17 which deflects mud &c. thrown' off the table. The wall 13 has on its upper surface radial ribs 19 to give a firm foothold &c., and outside the ribs are openings 20 through which water &c. is directed. The base may have drainage openings 21. In Fig. 4, the guard 51 has an annular passage 52 through which a pipe 55 delivers water, steam &c. to openings 53 above which is a curved deflecting surface 59 and stiffening ribs 60. ,
Patent GB-743069-A (GB)
Title: Improvements in or relating to printing presses
IPC: B65H1/14
Filed: 1952-12-11
Abstract: 743,069. Cylinder printing presses; feeding sheets. HOLMES, A. H., HOLMES, F., and HOLMES, A. L., [trading as HOLMES & CO. (PRINTERS' ENGINEERS), Ltd.]. Jan. 11, 1954 [Dec. 11, 1952], No. 31354/52. Classes 100 (1) and 100 (2). In a vertical type cylinder press having an impression cylinder 3 which, in addition to its rotary movement, is given a bodily reciprocating movement in a vertical plane, sheets are fed to, and delivered from, the cylinder by oscillating feeder and delivery arms 7, 49 respectively, the sheets 11 being fed from a pile on a table 13 by the arms 7 which carry suction shoes 67. The table 13 is supported by racks 15 which are lifted through the medium of ratchet mechanism operated from the delivery arms 49 under the control of the suction shoes 67. The feeder and pile table are supported on a sub-frame 1 pivoted on the main press frame 5. The racks 15 mesh with pinions on a shaft which is adapted to be rotated by a shaft 23 through worm and worm-wheel means 21, 19. A drive shaft 25 is geared to the shaft 23 through bevel gears, and the shaft 25 has a ratchet-wheel 53 secured thereto which is driven by a pawl 55 pivoted on a plate 37 freely mounted on the shaft 25. The plate 37 is rocked against the action of a spring 51 by an arm 31 freely mounted on a shaft 9, this arm being rocked by a lever 41 coupled by a link 43 to the delivery arms 49. The pawl 55 is normally held clear of the ratchet 53 by a latch 57, but a rod 63, slidably mounted on one of the feeder arms 7, which are secured to the shaft 9, can release the latch. The rod 63 is connected to a member 65 pivoted on the arms 7, this member carrying the suction shoes 67. As sheets are removed from the pile, the shoes 67 must swing down through a greater arc, and the rod 63 is correspondingly raised until, after a predetermined number of sheets has been removed a projection on the end of the rod 63 trips the latch 57 to allow the pawl 55 to engage the ratchet 53. Whereupon the oscillations of the delivery arms 49 cause the table 13 to be raised. The amount of oscillation of the pawl plate 37 is adjustable by screw means 71, even when the press is operating, so that the upward motion of the table 13 can be regulated. The type bed of the press reciprocates in opposite directions to the cylinder 3. The sheets 11 are deposited by the arms 7 on to a transfer table which is supported on the cylinder carriage which follows the movements of the cylinder.
Patent GB-592299-A (GB)
Title: Improvements in electrically propelled vehicles
IPC: H02P9/00
Filed: 1939-12-05
Abstract: 592,299. Control of two motors. ENGLISH ELECTRIC CO., Ltd., CALVERLEY, J. E., and POTTER, S. Dec. 5, 1939, Nos. 31494/39, 32234/39, 552/40, 2232/40 and 3265/40. [Class 38 (iii)] Motors 1, 2 driving endless-tracks of a vehicle are supplied from diesel driven generators 3, 4 and the vehicle is steered by altering the relative excitation of the generators so that one motor is regeneratively braked whilst the other is accelerated. The steering-wheel operates the field shunting resistance 10, and extreme movement thereof applies a fluid actuated brake, in a manner similar to that described in Specification 583,837, [Group XXXI], to the appropriate motor. Normal operation is obtained by closing reversing switches 7, 8 and then depressing an accelerating pedal which first closes switch 9, then accelerates the diesel engine 5 and then opens switch 11 and finally switches 31, 32, the motors then running with only their series fields 1a, 2a excited. Movement of the steering wheel, recloses switch 31 or 32 so as to cause associated motor to regenerate. Reverse compound generator fields 3b, 4b prevent overloading of the machine, they may be as described in Specifications 472,472 and 512,350, [Group XXXV], and are shunted by rectifiers to prevent them acting as compound fields for regenerative currents. Arrangements can be made to supply both motors from one of the generators.
Patent GB-373064-A (GB)
Title: Elastic coupling
IPC: F16D3/56
Filed: 1931-11-13
Abstract: 373,064. Universal joints. SOC. D'APPAREILS DE TRANSMISSION, 29, Rue Tronchet, Paris. Nov. 13, 1931, No. 31508. Convention date, Jan. 21. [Class 80 (ii).] In flexible shaft couplings of the type comprising flanges d with opposed slightly flared bores c containing helical torque - transmitting springs b, overstressing of the springs is prevented by inserting with clearance therein cylindrical round-ended pins a, which, in a modification, may taper slightly towards their ends.
Patent GB-1475775-A (GB)
Title: Conveyors
IPC: B65G21/02
Filed: 1975-10-16
Abstract: 1475775 Supporting conveyer belts CONVEYORS (YORKSHIRE) Ltd 16 Oct 1975 [17 July 1974] 31602/74 Heading B8A Support means for a conveyer belt frame or trunking 10 supported near its ends by legs 14 comprises wire cables 20 or rods adjustably tensioned by a turnbuckle 22 or other means and passing below a bearing cross member 18 so as to resist any tendency of the frame or trunking to sag. The frame may be movable by the legs 14 being provided with wheels or rollers.
Patent GB-443122-A (GB)
Title: Improvements in devices for closing doors
IPC: E05F1/10
Filed: 1934-11-05
Abstract: 443,122. Door-operating appliances. GIBBONS, F. J. J., St. John's Works, Church Lane, Wolverhampton. Nov. 5, 1934, No. 31711. [Class 65 (i)] In a spring door-closing device of the kind comprising a lever, pivoted to the door frame and engaging the door at its free end, and a torsion spring which is stressed by the lever when the door is opened the lever is pivoted relatively to its connection with the spring so that it can be angularly displaced to an inoperative position of rest out of contact with the door. The lever b, carrying at its free end a roller to engage the door, is hinged at b<3> to lugs c on a sleeve containing the torsion spring, which surrounds a pin carried by offset lugs of a bracket e fixed on the door frame. The spring is fixed at each end to a plug on the pin j, the upper plug being secured to the sleeve by a screw g while the lower one is free in the sleeve and carries an adjustable pin h which engages a stop lug i on the lower lug of the bracket e. When not required for use, the lever b is turned up about the hinge b<3>, so that the door can swing freely, and the spring is then prevented from unwinding by a pin e<3> on the bracket e engaging the lugs c of the sleeve.