baber/WOPTO huggingface dataset:
Patent GB-1004080-A (GB)
Title: Piston pump having a variable stroke
Inventor: VARNEY ARTHUR FRANCIS
IPC: F02M59/30
Filed: 1961-11-14
Abstract: 1,004,080. Reciprocating pumps. ALVIS Ltd. Dec. 19, 1962 [Nov. 14, 1961], No.40613/61. Heading F1A. Fuel is supplied to a pump through a union 15 and to the induction manifold of an internal combustion engine through an outlet 17. Pistons 37, 37a (Fig. 5) are mounted in a rotating cylinder block 23 and actuated by a cam plate 34. Engine lubricating oil serves as a control fluid and is fed to the space 40 via a union 16 which includes a restricted orifice. A pintle valve 44 controls a spill outlet 45 and the setting of the valve determines the control fluid pressure in the space 40. The valve setting is influenced by a diaphragm 43 which is subjected on one side to the pressure in the space 40 and on the other to the fuel supply pressure and a second diaphragm 47 is subjected on one side to the induction manifold pressure and on the other to atmospheric pressure through an aperture 19. A spring 51 acts on the end of the pintle and the spring loading is variable to allow for engine tuning. In an alternative embodiment (Fig. 14), fuel is supplied under pressure to a chamber 75 to act as the piston operating means. This fuel then passes through an orifice 78 into a chamber 76 to act as the control fluid. The pressure in the chamber 76 is controlled by a pintle valve 82 which is influenced by the diaphragms 43, 47 and the spring 51 as in the previous embodiment. The engine fuel to be pumped passes through an orifice 62 to the inlet port 59 and is supplied to the engine through an outlet 53, the returned control fluid passing to a spill outlet 54 via an outlet 83. The shaft 73 is cooled and lubricated by fuel passing from the inlet port 59 which is returned to the spill side of a relief valve. According to the provisional Specification the cylinder block may be stationary and the pistons acted upon by a rotary swash plate. One or more pistons may be operated by a cam rotating about an axis normal to the direction of reciprocation of the pistons or radially disposed pistons may be mounted in a rotary cylinder block.
Patent GB-1197222-A (GB)
Title: Improvements in or relating to Thermal Power Plants
Inventor: CAMPBELL JOHN WILLIAM EDMUND
IPC: F01K7/40
Filed: 1967-09-05
Abstract: 1,197,222. Steam generators; heating air for combustion. BABCOCK & WILCOX Ltd. 5 Sept., 1968 [5 Sept., 1967], No. 40626/67. Headings F4A and F4B. Feed water is heated by bled steam from turbine 14 in heaters 20 and by combustion gases from boiler 12 in heater 32, the combustion air being heated in a pre-heater 45 by combustion gases supplied in parallel to those supplied to the heater 32. A second air pre-heater 40 is heated either by bled steam through pipe 48 or by heated feedwater through pipe 49. Heated feed water from heater 20 may be supplied through pipe 38 to a downstream portion of the feed water pipe in the heater 32.
Patent GB-1282003-A (GB)
Title: Improvements in or relating to the sterilisation of containers
IPC: A23C3/027
Filed: 1969-08-14
Abstract: 1282003 Sterilisation URSINA AG 14 Aug 1969 [14 Aug 1968] 40698/69 Heading A2D An apparatus for the continuous sterilisation of pressure-sensitive containers comprises a feed passage having an intake charging valve, a preheating zone, a sterilisation zone, a cooling zone and a free outlet along which passage, containers are conveyed solely by means of a flowing liquid which serves also as a heat transfer medium, the charging valve, preheating zone, cooling zone and outlet being at a higher level than the sterilisation zone. The preheating zone is formed in a plurality of turns having a continuous downwardly directed gradient to a junction between the preheating zone and one end of the sterilisation zone which itself is wound in a plurality of turns. The other end of the sterilisation zone is joined to the cooling zone which is wound in a plurality of turns having a continuous upward gradient extending at least a height corresponding to the entire height of the preheating zone. Heat exchangers are provided for the feed passage to exchange heat with the flowing liquid. The arrangement is such that the hydrostatic pressure in the feed passage at least between the intake charging valve and a point in the cooling zone having the same temperature as said valve is greater than the internal pressure of the container. A suitable apparatus is shown in Fig. 1 wherein containers 2 are fed by inlet charging valve 1 to a feed passage 3, a preheating zone V, sterilisation zone S and cooling zone K. The zones V and K consist of a plurality of turns wound in a coil-like manner and having a steeper gradient than that in zone S. These turns are provided with heat exchangers 5, 5'. Heat exchangers 5" are provided in zone S. The charging valve preferably comprises a housing which is tightly sealed at each end in which a wheel carrying pockets to receive the containers is rotatably mounted and on which an inlet and an outlet member for the containers is provided, wherein the pockets in the wheel pass along a feed path from the inlet member to the outlet member through several areas of increasing hydrostatic pressure and optionally, increasing temperatures of the flowing liquid. A suitable charging valve is shown in Fig. 4 wherein containers 2 arrive at the inlet 19 and are taken up by the pockets 20 of the wheel 18. The containers are thus conveyed to an outlet 21. Between inlet and outlet, the wheel passes through zones A, B and C of increasing pressure. For example in zone A, water at excess pressure and elevated temperature is introduced via pipe 22 to an arc-shaped groove 23 and hence via bores 24, 25 into the pockets 20. Expelled air and excess water are removed at opening 26. Similar operations occur in zones B and C. Further water at excess pressure and elevated temperature is fed in at 31 to facilitate the removal of containers at the outlet 21. The containers preferably contain foodstuffs such as milk, cream and other dairy products.
Patent GB-875174-A (GB)
Title: Improvements relating to the control of a pressure fluid
IPC: G05D16/18
Filed: 1958-12-17
Abstract: 875,174. Fluid-pressure servomotor control systems. GRATZMULLER, J. L. Dec. 17, 1958 [Dec. 18,1957; Dec. 2,1958], No. 40703/58. Class 135. A pressure fluid control maintaining the pressure in a chamber 4 within a narrow range, for operating pneumatic circuit breakers, comprises a high flow-rate valve 8 between the pressure source 7 and the chamber, and a system compensating small chamber pressure variations -e.g. due to leakage and temperature fluctuation-including a low flow-rate inlet valve 9 and an outlet 12 controlled by a valve 11 for keeping the chamber pressure below the upper limit, and means 20 responsive to chamber pressure to open the low-rate valve when chamber pressure falls to a predetermined value superior to the lower limit and to open the highrate valve when chamber pressure falls to the lower limit. Chamber pressure increase is detected via pipe 21 by spring-loaded diaphragm 25 to raise plunger 22 and tilt a triangular plate 32 whereby firstly a switch 1 breaks to deenergize an inhibition device 17 which then allows the circuit breaker to be operated and to close solenoid supply valve 13 and open an exhaust valve 43 whereby diaphragm 48 moves down and allows inlet pressure to close the highrate valve. Fluid continues to be supplied to the chamber through the low rate valve and check valve 18, which prevents reverse flow and chamber pressure leakage past the low-rate solenoid valve actuating-stem 40. As chamber pressure reaches its upper limit, switch 2 is broken to close the low-rate valve. Should the chamber pressure go above the upper limit, switch 3 makes and opens low-rate solenoid exhaust valve 11. Relief valve 19 opens if the chamber pressure continues to rise. In an alternative embodiment the two closures of valve 13 are separately operated by solenoids in parallel, one closure being a loose ball, and check valve 18 is opened by a solenoid in parallel with that of valve 9. The switches are operated in reverse order if the chamber pressure falls.
Patent GB-1438010-A (GB)
IPC: C01F7/02
Filed: 1973-08-29
Abstract: 1438010 Alumina - containing catalysts ATLANTIC RICHFIELD CO 29 Aug 1973 [7 Sept 1972] 40711/73 Heading C1A [Also in Divisions B1 and C5] A method of making a catalyst composition comprises (i) making an aqueous slurry of hydrous alumina, drying and calcining to form discreet entities the major portion of which are 50-200 Á, (ii) making a slurry of hydrous alumina and drying it to a solid product at below the temperature at which substantial amounts of water of hydration are released, (iii) mixing the products of (i) and (ii) so that the ratio (based on Al 2 O 3 ) is from 0À05 : 1 to 2 : 1, (iv) forming and (v) calcining. The alumina may be in the form of mono-hydrates, trihydrates or mixtures of these. The slurries may contain 5-16% Al 2 O 3 . The first slurry may be spray dried and the second dried at less than 500 F. Both may contain the same materials and may be made up as one slurry and divided. A surface active agent, e.g. R-(C 2 H 4 ) n -OH may be added to one or both slurries at 0À001% based on the water. 0À05-3% of at least one platinum group metal, 0À1-1À5% F, Cl or Br, or 0À1-5% rhenium may be added at any stage. The product which is claimed per se is used as a catalyst for hydrocarbon reforming reactions.
Patent GB-1190247-A (GB)
Title: Improvements in Electromagnetic Contactors
IPC: H01H51/28
Filed: 1967-09-06
Abstract: 1,190,247. Electromagnetic contactsor. ARROW ELECTRIC SWITCHES Ltd. 6 Sept., 1967 [13 Dec., 1966], No. 40724/67. Heading H1N. The contact pressure between contact bridge 23 and fixed contacts 22 is increased by the provision of a rigid conducting member 30 connected to one fixed contact 22 and extending generally parallel to the fixed contacts and bridge. When current flows from terminal 27 through fixed contacts 22, bridge 23 and conducting member 30 to terminal 32 the bridge 23 is electrodynamically repelled by the member 30 to increase the contact pressure. Member 30 is located in a slot in a hood 25. Each pole of the three-pole contactor shown has its own conducting member 30 to increase contact pressure.
Patent GB-932571-A (GB)
Title: Improvements in or relating to a bearing between two relatively rotatable members
Inventor: KING CHARLES SPENCER
IPC: B60B27/00
Filed: 1960-11-26
Abstract: 932,571. Bearings &c. ROVER CO. Ltd. Oct. 16, 1961 [Nov. 26, 1960], No. 40733/60. Class 12 (1). A bearing assembly for the front wheel of a vehicle comprises a hub 1 which forms the outer casing of a universal joint 2. A nut 4 abuts the hub 1 and together they define a circumferential groove 7. A ring 8 with radially inwardly extending rib 10 is located, with radial and axial clearance, within the groove 7. The annular spaces formed between circumferential and side faces of the rib 10 and the groove 7 are occupied by cylindrical roller bearings 15 and needle rollers 18 respectively, which may be located in cages 12 and 18 respectively. The rollers 15 form a journal bearing portion of the assembly and the needle rollers 18 form thrust bearings, the co-operating bearing raceways or surfaces of these assemblies being suitably hardened and ground. In order to obtain particular axial operating tolerances between the relatively moving parts of the assembly, nuts 4 are provided with different axial dimensions, a suitable nut being selected to correspond with the tolerances required.
Patent GB-1403090-A (GB)
Title: Vertical dynamoelectric machine with rigid foundation
IPC: H02K1/18
Filed: 1972-09-04
Abstract: 1403090 Dynamo-electric machines with rigid foundations WESTINGHOUSE ELECTRIC CORP 4 Sept 1972 [18 Oct 1971] 40848/72 Heading H2A [Also in Division F2] In a vertical axis waterwheel generator, the stator 16 rests on a series of plates 18 on a rigid foundation 10, and is flexibly joined by radial and circumferential members 26, 28 to rigid L-shaped beams 20 each having a vertical section 21 with an end embedded in the foundation 10, and also a horizontal radial section 22 with an end embedded in a rigid concentric wall 12 integral with foundation 10. The radial members 26, in the form of rods with spring portions (not illustrated), and the plates 18 thereby allow the machine to expand/contract freely in the radial direction whilst the members 28, in the form of plates, accommodate tangential forces. The members 28 may also support heat exchangers 32 for cooling purposes.
Patent GB-926443-A (GB)
Title: Improvements in and relating to superconductive circuits
IPC: H03K5/01
Filed: 1959-12-03
Abstract: 926,443. Superconductive circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 3, 1959 [Dec. 3, 1958], No. 41131/59. Class 40 (9). A superconductive path 18 including an inductance 18a is connected in parallel with a second path 20 including a superconductive coil 20a, with less inductance than 18a, and a resistor R. When a current pulse is applied, the current flows as a pulse in the low inductance path 20 but then shifts wholly to path 18 in view of the resistor R. The total current I and the currents I1, I2 in the two paths 20, 18 are shown in Fig. 1a. A second pulse occurs in the coil 20a at the trailing edge of the driving pulse I. A superconductor 20g is controlled by the coil 20a. The superconductor 20g may be suitably biased to suppress one of the two pulses. The bias may be applied by means of a second coil around 20g in an independent circuit (not shown) or by a direct current in the coil 20a as shown in Fig. 3. The coil 20a may be used to trigger the monostable or single shot multivibrator described in Specification 887,112. In Fig. 5, one of the limbs 70, 72 is heated to direct the current 15 through the other limb. The resistive limb 74b (low inductance) of the parallel circuit 74 is used to heat limb 70 of the main circuit. A similar limb 76b of circuit 76 is used to heat limb 72. Specification 887,112 is referred to.
Patent GB-949369-A (GB)
Title: Improvements in or relating to door retaining means
Inventor: TWYMAN CLIFFORD HARRY
IPC: B64C1/14
Filed: 1959-12-04
Abstract: 949,369. Stays. WESTLAND AIRCRAFT Ltd. Nov. 23, 1960 [Dec. 4, 1959], No. 41179/59. Heading E2F. A cockpit or cabin door in a vehicle such as an aircraft is held in the open position by an arm 4 connected to the door 2 by a spring- loaded pivot which tends to rotate the arm towards the canopy 8 and provided at its other end with catch means, such as a plate 9, adapted to engage a spigot 10 on the canopy. When the door is closed, Fig. 2, a stop 6 on the arm abuts the fixed member 1 of the hinge to provide a clearance between the catch means 9 and the canopy. Should it become necessary to jettison the door whilst the latter is open the plate 9 becomes detached from the spigot, whilst if jettisoning becomes necessary when the door is closed the arm 4 is free and provides no hindrance to the operation.
Patent GB-1314281-A (GB)
Title: Removal of iron from phosphoric acid
IPC: C01B25/46
Filed: 1971-09-06
Abstract: 1314281 Purifying phosphoric acid R A OETKER [trading as CHEMISCHE FABRIK BUDENHEIM RUDOLPH A OETKER] 6 Sept 1971 [25 Sept 1970] 41361/71 Heading C1A Iron is removed from phosphoric acid containing sulphate ions and other impurities by addition of barium ions in an amount greater than that which would be required to remove the sulphate ions. Specified barium compounds which may be used include barium hydroxide, barium phosphate, barium carbonate and barium sulphide, preferably used in amounts to give a 2 to 20-fold excess of barium ions, based on the quantity of sulphates. The amount of sulphate present should be between 0À01 and 0À5%, based on the P 2 O 5  content of the phosphoric acid. The phosphoric acid may be diluted if desired with a miscible organic solvent such as a water-soluble aliphatic alcohol or ketone. The preferred amount of solvent is from 40-90% by weight, and the P 2 O 5  content of the phosphoric acid between 5 and 30% by weight. The process is applicable to both wetprocess and thermal phosphoric acids. Any excess barium present in the purified acid solution may be removed prior to concentration by ion exchange resins. The purified acid may be concentrated by conventional means, or, if an organic solvent has been used, by distilling off the solvent.
Patent GB-1140249-A (GB)
Title: Hose clip
Inventor: PARKIN LESLIE
IPC: F16L33/02
Filed: 1966-09-16
Abstract: 1,140,249. Clamp fastenings. CARR FASTENER CO. Ltd. 6 June, 1967 [16 Sept., 1966], No. 41503/66. Heading E2B. A hose clip comprises a strip 1 of sheet metal .bent to form a normally open loop for encircling the hose, one end portion of the clip being formed with a tongue 3 extending radially outwards and having a lateral projection 4 and the other end portion of the clip having a socket-like portion 8 also extending radially outwards for receiving the tongue, the socket-like portion being formed with means 9 (an aperture as shown) for making fastening engagement with the tongue. As shown the socket-like portion is U-shaped. The clip can be formed with one or more transverse corrugations 11 intermediate its ends to permit the clip a limited amount of expansion in order that it can adapt itself to hoses of different diameter.
Patent GB-1490786-A (GB)
Title: Hydrometallurgical production of technical grade molybdic oxide from molybdenite concentrates
IPC: C01G39/00
Filed: 1975-10-09
Abstract: 1490786 Molybdic oxide NORANDA MINES Ltd 9 Oct 1975 [17 Oct 1974] 41503/75 Heading ClA Molybdenum oxide is obtained from molybdenite concentrate by (a) leaching the concentrate in an acid medium having 25-50 gl.<SP>-1</SP> of HNO 3  and 0-750 gl.<SP>-1</SP> of H 2 SO 4  concentrations, under an oxygen pressure of 100-250 p.s.i.g. at a temperature above 115 C., (b) effecting a liquid-solid separation, (c) recycling the leach liquor from step (c) back to step (a), (d) recovering technical grade molybdenum oxide by washing the solids of step (b), and (e) repeating the leaching operation with recycled leach liquor after adjusting the acid concentrations to the values used in step (a). The wash waters from step (d) may be treated by solvent extraction or ion-exchange techniques to recover metal values therefrom. The leaching operation is preferably effected for 120-240 minutes at 120-160 C. The leach liquor from step (b) may be partially neutralized with a calcium compound such as CaO, Ca(OH) 2  or CaCO 3 , to form an insoluble sulphate, up to a pH of 0À9, and another liquid-solid separation effected.
Patent GB-1135706-A (GB)
Title: Tin-opener
IPC: A47J43/06
Filed: 1967-09-12
Abstract: 1,135,706. Can opening. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 12 Sept., 1967 [13 Sept., 1966], No. 41522/67. Heading B8D. A can opener which can be coupled to the drive spindle of an independent domestic electric hand-operated mixer, &c. has a supporting surface 40, Fig. 1, for the mixer, &c. and a shaft 12 for engagement with a drive coupling of the mixer, &c. A support 10 is tiltable about a stud 9 on a box-like support 1 secured by screws, &c. 2, 3 to a kitchen, &c. wall, and has ribs 42, 43 on to which a hood 36 can be slidden to provide the supporting surface 40 for the mixer, &c. In the support 10 is journalled the shaft 12 having a coupling spring 13 engaged in the drive socket of the mixer, &c. when placed on the supporting surface 40. The shaft 12 carries a worm 19 meshing a worm wheel 21, Fig. 2, on a shaft 20 journalled in the support 10 and into the hollow end of which is pushed a flat pin 24 carrying a drive wheel 26 for engagement with the rim of a can to be opened. The shaft 20 projects through a slot 30 in a plate 5 fast with the box-like support 1. A knife 28 for engagement with a can to be opened is fast with plate 5. In use, the domestic mixer, &c on the support surface 40 is tilted together with the support 10 about the stud 9 to engage the drive wheel 26 and the knife 28 with the rim of a can. An arm 34 pivoted about a pin 33 on the plate 5 carries a magnet 35 which retains a severed can lid. An additional transverse arm (16), Fig. 3 (not shown), on the support 10, carries a stud (17) for engagement in the second drive coupling of the mixer, to retain the latter firmly in position.
Patent GB-926598-A (GB)
Title: Improvements in or relating to amplifying circuit arrangements
IPC: H03F7/04
Filed: 1961-11-21
Abstract: 926,598. High-frequency amplifiers. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 21, 1961 [Nov. 22, 1960], No. 41643/61. Class 40 (9). [Also in Group XL (c)] A non-reciprocal circuit arrangement includes at least an up-converter in series with a downconverter, both operating with the same heterodyne frequency, the active element of one converter M1 being a non-linear susceptance B, and the active element of the other M2 being a non-linear seal conductance W. Non-linear susceptance B may be a capacitance diode, a non-linear inductance or a pre-magnetized ferrite element; and the non-linear conductance W may be a conventional diode or a tunnel diode. If a tunnel diode is used a transmission gain greater than unity is possible. The input may be isolated from the output, and the reverse transmission of the frequency-changer chain neutralized, by providing a passive, linear and reciprocal coupler K between the input and output terminals. Depending on whether the pumping frequency is applied to the frequency changers in the same or opposite (using phase shifter Ph) phase, and on whether the upconverter precedes or follows the down-converter, this may be an inductance or a capacitance. An additional frequency-changer, e.g. a self-oscillating grounded-grid mixer, may be connected to the output terminal to give an overall frequency change. The local oscillator O is preferably gang-controlled with the signal frequency fs so that the intermediate frequency, between M1 and M2, remains constant.
Patent GB-1422209-A (GB)
Title: Apparatus for continuous hydrogenation
IPC: B01J8/10
Filed: 1973-09-05
Abstract: 1422209 Mixing apparatus; catalytic hydrogenation P JOWETT 5 Sept 1974 [5 Sept 1973] 41685/73 Headings B1C and B1F Apparatus for hydrogenation comprises a horizontal tube having a coaxial rotary agitator shaft with attached agitator arms and scraper blades, thetube being jacketed for circulation of heating or cooling medium and having inlet means for admitting hydrogen to the tube. The agitator shaft may be hollow and hydrogen supplied therethrough to perforations in the agitator arms. In use the substance to be hydrogenated e.g. a glyceride oil or fat, fatty acid, fatty ester or fatty nitrile, is passed through the tube together with catalyst and other process aids e.g. filter earth and decolourising earth but a proportion of unhydrogenated substance without catalyst &c may be fed to lubricating grooves in the bearings of the agitator shaft to prevent damage thereto by the catalyst. The tubular vessel may have fixed internal baffles.