baber/WOPTO huggingface dataset:
Patent GB-1187391-A (GB)
Title: Improvements relating to Liquid Metal Cooled Nuclear Reactors
Inventor: GATLEY JOHN ANDREW
IPC: G21C1/03
Filed: 1966-05-10
Abstract: 1,187,391. Cooling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 10 May, 1967 [10 May, 1966], No. 20736/66. Heading G6C. In a fast reactor, the heat exchanger within the pressure vessel has liquid sodium as both primary and secondary coolant. To prevent an excessive rise in primary sodium vapour pressure, due to overheating, a sodium vapour condenser is mounted in the heat exchanger supports. Primary coolant from the core flows through the heat exchanger tubes 15, while secondary coolant flows upwards between the tubes from duct 13, and out through 14. Sodium vapour is condensed in the sprinkler and packedbed, 34, 35, through which primary sodium is pumped after cooling in compartment 30. The flow of primary core coolant through the exchanger is controlled by valve 36.
Patent GB-669021-A (GB)
Title: Improvements in and relating to flame detectors
IPC: F02C7/262
Filed: 1950-08-22
Abstract: 669,021. Gas turbine plant. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 22, 1950. [Aug. 31, 1949] No. 20756/50. Class 110(iii). [Also in Groups XII and XXXVI] A gas turbine plant is provided with a thermopile 17 the hot. junctions of which are exposed to the interior of the combustion chamber 6. Current from the thermopile passes to an amplifier 19 from which current is led to an electromagnetically operated valve 13 in the fuel supply pipe. If the flame in the chamber 6 becomes extinguished the valve 13 closes and cuts off the supply of fuel. The valve is reopened manually. Specifications 671,853, [Group XXIX], and 13858/48 (as open to inspection under Sect. 91) are referred to.
Patent GB-1008920-A (GB)
Title: Improvements in cutting inserts
IPC: B23B27/16
Filed: 1964-05-20
Abstract: 1,008,920. Cutting tools. GENERAL ELECTRIC CO. May 20, 1964 [June 14, 1963], No. 20793/64. Heading B3B. In a cutting tool of the disposable insert type the insert 5 is in the form of a block having peripheral surfaces 17 which, at their meeting with the upper and lower parallel faces of the block, form cutting edges 18. The upper and lower faces are provided with a peripheral groove which is spaced from the cutting edges to provide a land 20 between the edges 18 and the groove 19. The surface level of the land 20 is formed below the level of the central portion of the upper and lower faces. The groove 19 adapted for chip controlling, is formed by two radii. The insert has a central hole 12 which is adapted to be located over an eccentric pin 7 on the seat 6 of a recess in the tool shank, and is held in abutted engagement with the shoulder 4 of the recess by the eccentric action of the pin 7.
Patent GB-1165619-A (GB)
Title: Extrusion Press.
Inventor: VALKS ROBERT KENNETH
IPC: B21C23/21
Filed: 1967-05-04
Abstract: 1,165,619. Extrusion press. DAVY & UNITED ENG. CO. Ltd. 2 May, 1968 [4 May, 1967], No. 20855/67. Heading B3P. In an extrusion press the die 6 is supported in an anchor member 5 releasably coupled to a die holder A and slidable in a direction normal to the press axis between a first operative position and a second non-operative position (that of the replacement die holder B in Fig. 1) in which the die holder may be uncoupled from the anchor member by means 7. The die holder and anchor member are preferably connected by a dovetail joint and the means 7 is a carriage movable parallel to the press axis for slidably removing the holder from the anchor, at the same time introducing a new die holder in its place. The anchor member has means for receiving a billet 28 prior to being loaded into the container 20 for extrusion. The die is held in the die holder by a slot 26 which is inclined at an angle to the direction of movement of the die holder.
Patent GB-1071572-A (GB)
Title: Improvements in metal coating methods and apparatus
IPC: C23C2/20
Filed: 1964-05-21
Abstract: In a continuous hot dip process for coating strip such as steel with metal e.g. Zn, Cd, Al, Zn and Pb, the weight of the applied coating metal is controlled by passing the strip in planar configuration through a control zone above the surface of the molten coating bath, in which zone there is no mechanical contact with the strip and the metal coating remains molten and in which a stream of hot gas such as superheated steam is applied across the full width of each of the strip faces at an angle of incidence of 0 DEG -15 DEG  above the perpendicular. According to Figures 1, 2 and 3 (not shown) the strip (24) is guided from the coating bath by a sinker roll (25) immersed in the bath and a top roll (26) between nozzles (28) and (29) supplied with superheated steam.  Submerged supports (40) and (41), and guide roll (42) and cooling jets may also be provided.  The nozzles supplying the hot gas are supported in such a way that the angle of impingement of the gas on the strip, the height above the bath, the gap between the nozzles and the gap between the nozzles and the strip can all be adjusted to control the weight of coating metal. The gas temperature is also controlled e.g. at 550 DEG -850 DEG F. and differential coating weights can be formed on both faces of the sheet by varying the distance of the respective nozzle from the strips and/or by adjusting the rate of gas flow, i.e. gas pressure. The nozzle outlet width is preferably 0.005" to 0.015".
Patent GB-833909-A (GB)
Title: Feeder for feeding articles in a single row
IPC: B65G47/14
Filed: 1958-07-01
Abstract: 833,909. Disc feeders. HUTTER, J. F., and KELLY, L. July 1, 1958, No. 20982/58. Class 78 (1). Ore pieces from hopper 26 fall down vibrated shoot 24 on to rotating disc 3 and are discharged therefrom by stationary band 16 which is spiral in shape so that the pieces separate to flow off the disc in single file. Band 16 is adjustably secured to base-plate 1 by bolts 21. Disc 3 is driven by motor 13 through belt 15 and gearing 14, and is accordingly mounted for rotation upon ball-bearings 12. The surface of disc 3 is elevated centrally by means of plate 7. Alternatively, disc 3 is made " upwardly conical " and band 16 is made " downwardly conical " as shown in Fig. 4. Specification 718,874 is referred to.
Patent GB-892121-A (GB)
Title: Improvements in or relating to electro-magnetically actuated piston slide valves
IPC: F16K31/06
Filed: 1958-07-01
Abstract: 892,121. Valves. SCHMIDT, F. July 1, 1958 [July 1, 1957], No. 21042/58. Class 135. [Also in Group XXXV] An electromagnetically-operated piston slide valve 2 controlling the flow of fluid between ports 3, 4, 6 is encircled at each end by a resilient ring 7 having a lip pressed against the surface of the piston to produce a frictional force sufficient to hold the valve in its adjusted position, and prevent displacement due to vibration &c. The lips of the rings also divert any leakage along the valve into drainage channels 9. The valve is operated by current pulses fed to solenoids 13 surrounding armatures 12 integral with the slide valve and also formed with integral flanges 11 of an outer diameter equal to that of the magnet casings 14. Valve stroke adjustment may be effected by varying the axial position of the magnet assemblies, which are held in position by set screws 17. The rings 7 are preferably made from plastics material based on a polyester isocyanate combination.
Patent GB-1078997-A (GB)
Title: Electronic signal selector
IPC: G01R19/00
Filed: 1965-05-18
Abstract: 1,078,997. Selecting the largest or smallest signal. A NATHAN. May 12, 1966 [May 18, 1965, No. 21078/65. Heading H3T. [Also in Division G4] In a circuit for selecting the largest or smallest of a number of input signals and suitable for use in a cascade multiplier, the signals are applied to a common point through respective unidirectional conductors and a current is supplied to the common point which is so varied by the potential at the point that the current through the unidirectional conductors is independent of the signal level. In Fig. 3 the signals are fed through diodes to point 3 so that the potential at 3 follows the largest signal. The diodes are biased from constant current sources 21, 22, and the output from the point is fed to a phase reversing operational amplifier 15. Part of the output of the amplifier is used to so vary the current bias from 22 that the diode circuit current remains constant notwithstanding the increasing current drawn by the operational amplifier as the signal amplitude increases. Diode 19 provides voltage compensation and an input terminal 24 receives an " offset " signal. For selecting the smallest signal the diodes are reversed, Fig. 2 (not shown).
Patent GB-568878-A (GB)
Title: Improvements in wire drawing machines
IPC: B21C9/00
Filed: 1943-12-16
Abstract: 568,878. Drawing wire. SCOTT & CO., Ltd., A. C., and ASHTON, G. W. Dec. 16, 1943, No. 21128. [Classes 83 (ii) and 83 (iv)] In a continuous wire-drawing machine, the wire passes through an annealing-furnace between one stage and the next. Wire, particularly of stainless steel, nickel-chromium, or high-speed steel, that requires annealing between each stage, passes from the die f and drawing-drum a through a heating tube d round a pulley j in an end chamber h and through a cooling tube e to a second die g and drum b, whence it passes again through the heating and cooling tubes and so on. Inert gas is supplied to the tubes through the chamber h at i, the tube d may be electrically heated and the tube e water or air cooled. The annealing-furnace may comprise a number of pairs of tubes d, e arranged side by side.
Patent GB-1256391-A (GB)
Title: Refrigeration system with multi-stage throttling
IPC: F25B1/047
Filed: 1969-04-25
Abstract: 1,256,391. Refrigerating. STAL REFRIGERATION A.B. 25 April, 1969 [6 May, 1968], No. 21251/69. Heading F4H. In a vapour compression system employing a positive displacement screw compressor 1 and two expansion devices 5 and 8, vapour from a liquid separator 6 passes to an intermediate pressure inlet 12 of the compressor 1. The intermediate pressure inlet may comprise a plurality of openings arranged on a helical line which has the same pitch as the rotor thread, Fig. 2 (not shown).
Patent GB-792216-A (GB)
Title: Improvements in and relating to cargo hatches
IPC: B63B19/19
Filed: 1956-07-10
Abstract: 792,216. Hatch covers. AKTIEBOLAGET GOTAVERKEN. July 10, 1956 [Sept. 23, 1955], No. 21392/56. Class 113. A device for opening and closing a hatch cover pivotally mounted at 5 on one of its sides comprises a lever 8 which is secured to the deck 1 outside the coaming 2 by means of a hinge 10 located outside the pivots 5 and extends from said hinge inwards above the cover to which it is movably connected by a roller 11, a jack 9 being arranged between the hinge 10 and the coaming and between the lever and the deck. The cover comprises sections 3 and 4 hinged together, section 4 carrying a roller 6 adapted to travel on a track 7 along the coaming.
Patent GB-302707-A (GB)
Title: Improvements in or relating to tyre retaining rims
IPC: B60B21/12
Filed: 1927-08-15
Abstract: 302,707. Killen, E. B. Aug. 15, 1927. Tyre attachments to rims.-The endless wellbase 2 of a rim is blocked at one or more places spaced from the tyre valve by means of a rubber or like flexible pad 1, Fig 1, or 1<A>, Fig. 2, secured by means of a set-screw 9 or an embedded bolt 9<A> leaving the outer surface 15 of the pad as a smooth seating for the air-tube. The devices 1, 1<A> may be arranged so as to balance the valvestem fitment, and the surfaces 15 may project above the bead seatings 3 so as to lock the tyrebeads against lateral displacement.
Patent GB-167779-A (GB)
Title: Guide for wood-working machines such as band saws, circular saws and the like
IPC: B23Q3/00
Filed: 1921-08-12
Abstract: 167,779. Col, A. Aug. 13, 1920, [Convention date]. Fences.-A band-saw, circular-saw, or like machine is provided with a fence c mounted by means of two parallel links b with fixed pivots a<1>, a<2>. The position of the fence is indicated by a helically-graduated drum i<1> attached to a spindle g mounted on one of the links b and carrying a pinion h which gears with a segment h<1> fixed to the fence. A cap j with an observation window covers the drum and is moved up and down by the action of the threaded end of the spindle g. As the angle a becomes smallerthat is, as the thickness of the strip cut decreases-the indications become more sensitive.
Patent GB-224970-A (GB)
Title: Improvements in or relating to closures for bottles, jars and other receptacles
IPC: B65D55/08
Filed: 1923-08-25
Abstract: 224,970. Chivers & Sons, Ltd., and Fison, F. J. Aug. 25, 1923. Stoppers secured by cords or wires.-Closures for jars, bottles, &c. and comprising a rigid or semi-rigid cap B, Fig. 1, are secured to the jar A by a flexible string, wire, &c. C which engages alternately the shoulder A<1> of the jar and widely-spaced hooks B<1> or other peripheral retaining means on the cap B, the string when pulled tight making substantially circumferential contact with the jar under the shoulder and exerting a downward pull on the cap retaining means. The hooks B<1> may extend downwards beyond the edge of the cap, as shown in Fig. 4, so that the string C draws them into engagement with a conical shoulder A<2>. In a modification, the shoulder is interrupted leaving spaced projections A<3>, Fig. 10, and the string engages below them and above hooks B<1> which project downwards between them. Loops punched out of the skirt of the cap or perforated tabs formed on it may replace the hooks. In another form, the hooks &c. are formed on a separate member adapted to be applied to the cap.
Patent GB-847553-A (GB)
Title: Improvements in or relating to wood fibre products
IPC: B27N3/06
Filed: 1958-07-04
Abstract: 847,553. Rigid laminates; compound paper board. SVENSKA CELLULOSA A.B. July 4, 1958 [July 5, 1957], No. 21572/58. Classes 96 and 140. [Also in Group XVI] Fibre boards are surfaced by superposing on and hot-pressing with the wet pulp sheet one or more thin sheets of paper or cloth impregnated or coated with a drying oil, and embossing the sheet, as by a patterned press platen or by a textile or wire cloth combined with a metal foil or thin sheet used as the platen. The cloth is preferably stiffened and bound to the foil &c. by impregnation with a thermoset resin. The drying oil may be linseed, china wood, soya or tall oil, or a polymerizable material such as a castor oil alkyd resin, and may be combined with a melamine-aldehyde, urea-aldehyde or like resin to assist binding of the sheet or sheets to the board substrate. The sheets may be coloured or printed with a pattern.
Patent GB-276342-A (GB)
Title: Improvements in leads for the electrodes of thermionic devices
IPC: H01J19/34
Filed: 1927-08-17
Abstract: 276,342. British Thomson-Houston Co., Ltd., (Assignees of Ruggles, W. A.). Aug. 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vacuum tubes. - In electron discharge tubes such as thermionic transmitting valves, a lead-in adapted to carry heavy currents at high frequencies comprises a rigidly mounted lead 8, Fig. 1, connected to an electrode support by a flexible coupling formed by a metal strap 11 detachablv connected to the 'lead and to the support. The strap 11 of annealed copper may have channels 12 detachably secured to the flanges 10 of a metal sleeve supporting the grid of the valve and may carry a threaded socket 13 into which the lead 8 screws. The strap 11 extends parallel to the surface of the sleeve 9 from the flanges 10 to the socket 13 either in the direction shown in Fig. 1 or around the sleeve 9 in the reverse direction as in Fig. 3 to increase the length of the strap. The lead 8 is a heavy straight tungsten rod perpendicular to the strap 11 and sealed into the stem 7. Heat due to heavy currents expands the strap 11 radially between its ends without affecting the seal and the straight lead 8 avoids induction effects.
Patent GB-432322-A (GB)
Title: Improvements in or relating to apparatus for severing sheets from continuous webs
IPC: B23D25/02
Filed: 1934-07-25
Abstract: 432,322. Cutting web material. HALL, C. T., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. July 25, 1934, No. 21752. [Class 31 (i)] A web fed between rollers 2, 3 is cut into a number of equal lengths by a rotary blade 5 co-operating with a fixed blade 4. The blade 5 is pivoted to an arm 6 on a rotary shaft 7 by a pin 10 and is provided with a cam follower 11 which is held by a spring 16 against a cam 13 fixed to a bracket 15 on the machine frame, the cam 13 being so shaped that the blade 5 moves quicker during the severing operation than during the rest of its rotation.
Patent GB-1505302-A (GB)
Title: Petrol or diesel fuel additive
IPC: C10L1/16
Filed: 1975-05-21
Abstract: 1505302 Petrol and diesel fuel additives AUTOL AG 21 May 1975 [22 May 1974 (2)] 21755/75 Heading C5G A petrol or diesel fuel has dissolved therein, to prevent completely or partially the formation of deposits, an additive comprising an ester of a saturated cycloaliphatic alcohol having 5 to 7 ring carbon atoms and a lower fatty acid of up to 5 carbon atoms. A petrol or diesel fuel additive comprises the ester and an ingredient useful to prevent corrosion and/or reduce engine wear. The fuel may contain, besides the ester, a condensation product derived from 1 mole of glycerol, or 1 mole of a polyethanolamine, and 1 to 2 moles of a fatty acid of at least 10 carbon atoms, one or more refined mineral oils with a viscosity of at least 1À6 E. at 20 C. and not more than 15 E. at 50 C., aliphatic hydrocarbons and aromatic hydrocarbons.
Patent GB-742839-A (GB)
Title: A device to prevent the upsetting of teapots and like domestic vessels
IPC: A47J47/16
Filed: 1953-08-06
Abstract: 742,839. Retaining articles on tables &c. PAVITT, F. W. Aug. 6, 1954 [Aug. 6, 1953], No. 21757/53. Class 52(3). A device to prevent the upsetting of teapots &c. has a base plate 10 which is secured to a table or stove and carries on lugs 11 a pivotable U-shaped member 13 on which is mounted a member 15 having secured thereto a member 18 which engages the lid 23 of the tea-pot 24, the handle 27 of which is housed between the arms of member 13. Pivotal movement of member 13 about its mounting bolt 14 is limited by stops 28 secured to the lugs 11.
Patent GB-1473098-A (GB)
IPC: B25G3/28
Filed: 1974-05-08
Abstract: 1473098 Fixing hammer handles; hand hammers THOR HAMMER CO Ltd 8 May 1974 [8 May 1973] 21807/73 Headings B4K and B4C A hammer comprises a head 11 having a transverse opening 12, a handle 10 having a solid end 13 extending through the opening and a wedge member 15 driven generally axially into the handle end to expand it into engagement with the opening the wedge member being tubular and generally tapered in overall form. The wedge member preferably has external and/ or internal rib, barb, groove or thread formations 16, 17, 18, (20), (21) and may be of plastics material, malleable iron, diecast zinc alloy or aluminium alloy. The hammer head may be of metal or plastics or a combination thereof and may have a metal body with one or more replaceable striking faces of plastics, rawhide, copper or aluminium. The wedge may have a self-tapping screw formation and be driven into the handle with a screwing action.
Patent GB-517354-A (GB)
Title: Improvements in or relating to the manufacture of non-poisonous town gas
IPC: C10K3/04
Filed: 1938-07-25
Abstract: 517,354. Combustible gas mixtures. BOSSNER, F., and MANISCHKA, C. July 25, 1938, No. 22083. Convention date, July 24, 1937. [Class 55 (ii)] [Also in Group III] In the removal of carbon monoxide from town gas by steam catalysis in the presence of a contact substance which travels through a contact chamber and a separate regenerating oven at a substantially constant temperature, a principal and a secondary contact chamber are used structurally separate and which may be connected with each other in series or in parallel. A catalyst is used in the contact chamber connected with the regenerator, which will also remove the CO2 formed, such as ankerite. In the series connection, the plant comprises the principal contact chamber 1, secondary contact chamber 2, catalyst regenerator 3 heated by gas from a combustion chamber 8 which gas also passes through heat exchangers 6, 7, a waste heat boiler 5 heated by the hot de-poisoned gas and a final gas cooler 29. Steam from the boiler is supplied by injectors 9 and 10, to each of the gas streams entering the contact chambers. The circuit of the contact material between chamber 1 and the regenerator 3 is shown by the line of circles. In using the contact chambers in parallel, the gas to be purified is divided into two streams in such proportions that after each has been purified in the respective chambers, the gas on uniting has comparable calorific values with ordinary town gas. Since the CO 2 is not absorbed in the secondary contact chamber a small proportion thereof remains in the final gas. In a further modification of using the plant with the contact chambers in parallel different gases are passed through each, such as coal gas through the secondary contact chamber and semi-water gas through the principal contact chamber ; the CO as before is left in the gas after flowing through the secondary chamber. The gases are then united. The proportions of each gas to be purified are chosen to give a resulting gas of standard calorific value. Specification 473,575 is referred to.
Patent GB-1482877-A (GB)
Title: Accumulator arrangement for a booster brake mechanism
IPC: B60T13/12
Filed: 1975-05-22
Abstract: 1482877 Brake boosters MIDLAND-ROSS CORP 22 May 1975 [24 June 1974] 22236/75 Heading F2F In a fluid-pressure brake booster with an integral or separate pressure fluid accumulator 50, a central cavity with a power chamber 29 for moving an output member 24 in response to operation of an inlet valve 33, connected to a fluid pressure source 12, and an outlet valve 34 by a manual input member 21, a valve 68 is provided between the accumulator 50 and a connection 56 to the source 12 having first (leftward) and second (rightward) positions respectively preventing and permitting communication between the accumulator 50 and the inlet valve 33, the valve 68 having an associated (coaxial) check valve 82 which permits or prevents in its leftward and rightward positions respectively communication between the accumulator and the pressure fluid connection 56 depending on whether the source pressure is greater or less than a predetermined pressure. As shown the source 12 is an hydraulic pump the output pressure of which rises from, e.g. 40 p.s.i. on actuation of brakes or power steering to, e.g. over 360 p.s.i. The pressure of 40 p.s.i. opens the longitudinally fluted valve 82 to pressurize the passage 53 after which the spring 80 closes the valve. When the pump pressure exceeds the loading of a spring 56 (at e.g. 360 p.s.i.) a piston 58 is moved to a stop 64 charging the accumulator. The pump pressure on the right hand end of the valve 68 normally holds it closed, but should the pump fail or stop the accumulator pressure displaces the valve 68 rightwards permitting the accumulator to communicate through a passage 74 with radial passages 41 normally supplied by the pump 12. When the pedal 22 is actuated the power chamber is supplied from the accumulator at, e.g. 360 p.s.i. A fast response passage 75 between the power chamber 29 and the valve 68 ensures fast movement rightwards of the valve 68 following pump failure to avoid delay and sudden actuation as the accumulator becomes effective.
Patent GB-203348-A (GB)
Title: Improvements in or relating to liquid meters
IPC: G01F3/38
Filed: 1923-09-04
Abstract: 203,348. Johanknegt, W. Sept. 4, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Liquid-meters comprising a measuring chamber a<1> with supply and discharge valves v, m<1>, the latter constituting the armature of a magnet m and being actuated by a lever e, stops g, h and a float s. The chamber a<1> may discharge into a compartment a<2> connected to it by an air conduit b, and the lever e may be acted on by a spring to prevent the valves from remaining in intermediate positions.