baber/WOPTO huggingface dataset:
Patent GB-1422390-A (GB)
Title: Filter press
IPC: B30B9/24
Filed: 1973-10-24
Abstract: 1422390 Travelling band press filter BELLMER KG MASCHINENFABRIK Gebr 24 Oct 1973 [28 Oct 1972 18 Nov 1972 16 Aug 1973] 49492/73 Heading BID A travelling band press filter comprises two endless filter belts 2, 3 which in a first section of the press descend downwardly whilst converging at an acute angle and which then change direction by passing together around the portion of the periphery of a dandy roll 10 of the spiral lobe type and which then pass together through a further section of the press whilst undergoing several S-shaped deflections, there being means for driving the two belts in the same direction, means for tensioning the two belts and means S for supplying suspension to be filtered so that it is enclosed between the two belts in the first section of the press for compression between the two belts in the further section of the press. The descending portions of the belts may be supported on suction boxes 8, 9 for additional filtrate removal. The dandy-roll 10 comprises a perforate drum the interior of which may be connected to suction and which has a series of inwardly extending circumferentially spaced spiral lobes for removal of filtrate to an axial discharge. The belts then pass between staggered opposed rollers 15 to 23 which apply pressure and cause the S-shaped deflections, each successive S- shape being more severe. The two belts are separated at roller 23, cake being removed by conveyor 62. Rollers 16, 18 and 23 are adjustable for pressure by means of hydraulic cylinders 48. Filtrate is collected in a trough 44 beneath the rollers and the surfaces of rollers 17, 19 and 21 may be grooved or perforated to facilitate filtrate removal. In a further embodiment (Fig. 2 not shown), the suspension is fed onto a horizontal section of belt 3 supported on a further suction box to provide some filtrate removal before compression between the belts. Also, the S-shaped deflections are all equal and each comprise an 180 degree turn around each roller. The apparatus may be used for dewatering of fibrous suspensions or sludges, e.g. settling sludge from sewage treatment.
Patent GB-1211021-A (GB)
Title: Automatic latching mechanism for strip loaded cartridge
Inventor: BUNTING LESLIE JOHN
IPC: G03B21/32
Filed: 1967-11-01
Abstract: 1,211,021. Latching mechanism for cine or tape cartridge. EASTMAN KODAK CO. Nov.1, 1967 [Nov.1, 1966], No.49650/67. Heading.G2E. [Also in Divisions E2 and G5] An automatic latching mechanism on a stripusing apparatus, such as a cine projector, for latching a cartridge to the apparatus, comprises two levers 36, 40, pivoted at 38, 42 and separately spring-biased to a latching position for engagement with a latching edge of cartridge 16, the levers interengaging by tabs 50, 54 such that manual depression of crank-arm 56 on lever 40 raises both levers from their latching position. The cartridge has a bevelled abutment edge on its rim which snaps under the offset arms 44, 46 of the latches when the cartridge is pressed on to the projector. In apparatus as disclosed in Specification 1, 209, 475 the film guide arm 12 is held in the inoperative position against spring 76 by a hook 82 on arm 40 and pin 84, and is released for rotation about pivot 78 to the operative position when arm 40 is displaced as by the insertion of a cartridge.
Patent GB-1202308-A (GB)
Title: Improvements in impact-absorption means
Inventor: SCHAFENBERG WALTER
IPC: B61G11/16
Filed: 1968-10-19
Abstract: 1,202,308. Impact absorption means. SCHARFENBERGKUPPLUNG G.m.b.H. 19 Oct., 1968, No. 49705/68. Heading B7T. A telescopic deformation impact absorber extends from a coupling 1 and comprises a relatively strong bush 5 disposed in the end of a deformable tube 2 and engaged by a deformable tube 6 which is secured at 8 to a railway vehicle chassis 9, the tube 6 being reinforced by a disc 7 welded thereto to prevent splaying or rupture of the tube 6 when as the result of impact forces on the coupling 1 the tube 6 is driven through the bush 5 so reducing its diameter and absorbing the impact forces. A nut 3 is screwed on to the tube 2 and is tightened against a chassis part 10 of the vehicle.
Patent GB-1360745-A (GB)
Title: Electrondischarge tubes
IPC: H01J21/18
Filed: 1972-10-31
Abstract: 1360745 Thermionic valves SIEMENS AG 31 Oct 1972 [2 Nov 1971] 50036/72 Heading H1D A high power UHF electron discharge tube comprises an annular metal capilliary cathode 1 producing a hollow electron beam, a grid 5 and an anode 7 each having annular slots across which aligned radial members extend and magnetic focusing means 11. The anode 7 comprises a hollow cylinder closed by a diaphragm 8 containing the annular slot 9. An additional grid screen electrode with cooling fins may be provided. A forced convection air cooler 13, 14 is mounted adjacent the anode. The cathode comprises a porous annular ring 2 and a heater 4 in a foil cylinder 3. A dished metal cap within the cathode reduces radiation to the grid 5. The tube forms part of a tank circuit tuned by a device 16.
Patent GB-1478868-A (GB)
Title: Radial active magnetic bearing
IPC: F16C39/06
Filed: 1974-11-19
Abstract: 1478868 Automatic control of position LICENTIA PATENT-VERWALTUNGS GmbH 19 Nov 1974 [20 Nov 1973] 50079/74 Heading G3R [Also in Division F2]  A rotor 12, e.g. of a centrifuge, is driven and positioned within a stator by a rotating field and a "control" field respectively, the latter field being controlled by voltages proportional to the product of the output of air-gap sensors (not shown) and auxiliary voltages having the frequency of the supply to the rotating field. The effect is that the rotating field is augmented and diminished at the angular positions corresponding to oversize and undersize air-gaps respectively. As shown, the two poles of one of three phases are illustrated; 16 and 17 are the windings for the rotational field and 18 and 19 are control field windings concentric, with the rotor, 18 is shown in Fig. 2A. The alternating factors in the control energizations are displaced by 90 degrees and the corresponding air-gap sensors are arranged orthoganally. The rotor may be squirrel cage, or simply tubular for hysteritic operation. In Fig. 2; 8 and 9 are toothed core rings and 10 is an axial core connecting them to a smooth bore central "return ring" 11. An alternative construction, Fig. 2b (not shown), uses a stepped rotor and it may have only one control winding. In other embodiments there are no separate control windings, their effect being produced by suitable modifications to the energization of the rotating field windings. In Fig. 3 (not shown) a three phase supply is converted to six for supply to bi-polar windings, the respective star points of which are interconnected through amplifiers by which the control currents are impressed and Figs. 4 to 7 (not shown), illustrate variations of this form using various combinations of phases and poles.
Patent GB-1063148-A (GB)
Title: Improvements in or relating to live cell diluent
IPC: A61K35/52
Filed: 1965-11-25
Abstract: A freezable preservative and extender diluent for live animal cells such as semen, germ plasma, bone marrow cells, and muscle or artery tissue cells, comprises a mixture of a proteinaceous material, a buffering agent and a combination of polysaccharides, the mixture in a water solution having a pH value of 6 to 7.5 and an osmotic pressure of 225 to 350 milliosmoles.  The preferred proteinaceous material is a liquid extract of spray-dried egg yolks but blood may also be used.  Where blood is the material being preserved, further addition of proteinaceous material is unnecessary.  Suitable sources of polysaccharides are the partial hydrolysis products of naturally occurring starches.
Patent GB-501841-A (GB)
Abstract: 501,841. Obtaining hydrocarbons and vitamins from marine animal oils. EASTMAN KODAK CO. June 2, 1937, No. 15285. Convention date, June 12, 1936. [Class 2 (iii)] [Also in Group III] Marine animal oils are subjected to vacuum distillation, a low boiling fraction containing hydrocarbons and comprising not more than about the first 1 per cent of the total distillate is collected, and the fraction is treated to isolate a substantially pure hydrocarbon mixture. High vacuum short path, and in particular molecular, distillation is preferred, and the process may be operated in conjunction with the recover of vitamins, the byclrocarbon-containing distillate being collected in cooled traps disposed in the conduits leading from the condensing chamber for the vitamincontaining fractions to the vacuum pumps which maintain the low pressure during the degassing and distillation treatment. The still used is preferably one in which the condensing and evaporating surfaces are relatively close together and have similar areas. Pressures below 10 mm. and in particular below 1 mm. are preferred, pressures of less than 1 mm., e.g. À005 to À00001 mm., being specified for molecular distillation, in which case the distance between the condensing and evaporating surfaces is less than 10 ins., e.g. ¢-6 ins. Distillation temperatures of 50-300‹ C. may be used, a range of 100-250‹ C. being preferred when non-molecular distillation is used. In an example, cod-liver oil is subjected to molecular distillation in a multi-unit still, a vitamin A alcohol fraction being withdrawn at 90-125‹ C., a vitamin D fraction at 135- 165‹ C., and a vitamin A ester fraction at 180-235‹ C. Each still was evacuated to À001-À003 mm., traps cooled with solid carbon dioxide and acetone being disposed in the evacuation conduits. The contents of the traps were saponified with aqueous potassium hydroxide, the non-saponified portion being treated with cold concentrated sulphuric acid, and then distilled at 265-310‹ C., or at 125- 177‹. C. at 12 mm. Three fractions of specified boiling ranges were collected ; the second and major fraction was redistilled yielding a hydrocarbon having a formula C17H36' a b. pt. (760 mm.) of 301-304‹ C., a melting point of - 21‹ C., and other specified characteristics. Other methods of working up the hydrocarbon fraction include treating with concentrated sulphuric acid alone, or extracting with methyl alcohol, distilling off the latter and treating the residue with concentrated sulphuric acid. Other suitable oils treated are halibut-liver, salmou, sardine, herring, menhaden, tuna, mackerel, whale and seal .liver and body oils. The hydrocarbons are obtained in amounts of 10-100 parts per. million of oil treated, and are suitable for use as fillings for thermometers, manometers and condensation pumps, as lubricants for guns, watches, scientific instruments, &c., as softeners for organic plastic materials and as vehicles for scents and essences. A statement of the art refers to the extraction of hydrocarbons from the unsaponifiable matter of basking shark liver oil by distillation.
Patent GB-1045500-A (GB)
Title: Improvements in or relating to phase reversible amplifiers
Inventor: GRANT BRIAN ERIC
IPC: G06G7/163
Filed: 1963-12-19
Abstract: 1,045,500. Balanced modulators; telegraphy; transistor amplifiers. MINISTER OF AVIATION. Dec. 17, 1964 [Dec. 19, 19631, No. 50205/63. Headings H3R. H3T and H4P. [Also in Division G1] A tunnel diode D is connected in a forwardly conducting sense in the emitter or collector circuit of a transistor Q and so biased that when a square wave is applied from a source W to the base, the tunnel diode forward bias is shifted between a positive and a negative resistance operating point thereof, so that an input A.C. signal I applied to the transistor base is phase reversed or not, in the collector circuit output, and without change of amplitude, according to the square wave polarity. If w 1 , w 2  are the angular frequencies of the A.C. and square wave respectively, and Y the A.C. input amplitude, the output is The A.C. input I may include a low pass filter ganged with the switching wave generator W, to exclude from the A.C. input any frequencies greater than that of the generator, and thus avoid low frequency beats between them and the w 2  harmonics. If now, the collector circuit includes a very low pass filter (which produces an output only when w 1 , w 2 . are substantially equal), then the product of Y.sin w 1 t with the w 2  harmonics is eliminated from the output, and only the product Y.sin w 1 t.sin w 2 t derived. This signal may be passed to an integrator, the output of which may be used to plot the frequency spectrum of the input I over a range of frequencies determined by varying the switching frequency w 2 .
Patent GB-1057230-A (GB)
Title: Improvements in or relating to cine film cassette
IPC: G03B17/26
Filed: 1963-12-23
Abstract: 1,057,230. Cassettes for cinÚ-cameras. EASTMAN KODAK CO. Dec.23, 1963 [Jan. 10, 1963], No.50613/63. Headings G2A and G2E. A reversible cassette has a blocking member mounted thereon, which in its blocking position allows the cassette to be inserted into the camera in the correct first position only, said insertion causing the blocking member to move to its unblocking position which allows the cassette, after removal from the camera, to be re-inserted in the second position. The cassette comprises a body portion 41 having a cover 43 attached to it by hinges 45. The film 47 passes from a supply spindle to a take-up spindle within the cassette to expose one half of the film, after which the cassette is reversed and the film passes back again to expose the other half. At one end of the cassette, a latch or blocking plate 51, pivoted at 53, rests initially in the position shown in Fig. 2, held in that position by a clickstop. An inwardly bent ear 55 of the latch extends inwards into a cavity 57 of the cassette body. At the other end of the cassette is another cavity 61. The camera has two fixed protrusions 31, 33 corresponding to these two cavities, having a square head and slant head respectively. When the cassette is inserted into the camera in the correct position for the first exposure run (position of Fig. 2), the slant-headed protrusion 33 enters the cavity 57, its sloping head enabling it to slide in and cause the blocking latch 51 to pivot upwards. At the same time the square-headed protrusion 31 enters the other cavity 61. (If it is attempted to insert the cassette initially in its reversed position, as in Fig. 3 (not shown), the closed blocking latch 51 prevents the square-headed protrusion 31 from entering cavity 57.) Having once been raised, the blocking latch remains in that position, retained by another click-stop. When the cassette is now reversed and re-inserted in the camera, the square-headed protrusion 31 can enter cavity 57, since the blocking latch is retained in its open position Fig. 5, (not shown). After the second exposure run has been made, the cassette is again removed from the camera. The action of opening the cassette cover, to remove the exposed film, pushes the blocking latch down once more to its initial closed position Fig. 6 (not shown). In another embodiment, Figs. 11-16 (not shown), a blocking spring is arranged to perform the same function as the blocking latch 51.
Patent GB-1113444-A (GB)
Title: A method for generating electrical signals
Inventor: GUNN JOHN BATTISCOMBE
IPC: H03K3/02
Filed: 1965-05-21
Abstract: 1,113,444. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 50948/67. Divided out of 1,113,442. Heading H1K. The subject matter is identical with that of Specification 1,113,442 but the claims relate to arrangements for initiating a single high field travelling domain in a semi-conductor body. If an input voltage pulse of the form shown in Fig. 8a exceeds the threshold voltage VT for only a sufficient time to initiate a domain, the output current obtained is as shown in Fig. 8b. Such pulsed operation may be exploited to provide a pulse amplifier, delay line or logic device.
Patent GB-1468717-A (GB)
Title: Apparatus for and method of applying a strip of elastic material  to a tyre bead
IPC: B29D30/48
Filed: 1974-11-25
Abstract: 1468717 Manufacturing apex strip and bead wire assemblies BRIDGESTONE TIRE KK 25 Nov 1974 50989/74 Heading B7C Apparatus for use in preparing a bead wire and open strip assembly BS comprises a plurality of radially movable bead wire holding members 20, and a plurality of strip support members 77 movable, see Fig. 7, to transfer the strip to an annular support surface 47 adjacent the radially outer periphery of the members 20. The strip S, when transferred, is deformed such that its inner periphery is contracted into engagement with the outer periphery of a bead wire B supported by the members 20. In the illustrated apparatus a stationary housing 11 supports a shaft 14 rotatable by a motor 48, and axial movement of rod 23 relative to the shaft by means of a cylinder 40 causes the radial movement of the members 20. A housing 12 movable towards and away from the stationary housing 11 by means of a cylinder 59 supports a shaft 65 rotatable by a motor 92. Pivoting of the members 77 to transfer the strip is effected by a cylinder 88. In operation the end of a continuous length of strip material is applied a support member 77, when the latter is in its solid line position and motor 92 is energized to effect one revolution of the shaft 65. The length is then cut and the ends are joined together. A bead wire is placed on the radially collapsed members 20 prior to, during, or after applicaton of the strip to support members 77 and the members 20 are moved to their radially outer positions. The housing 12 is then moved to the Fig. 1 position, and the strip is transferred to the surface 47 to thus contact the bead wire. Thereafter the cylinders 88, 59 are respectively retracted and extended. The strip may be forced against the bead wire to increase the bond by means of a stitcher roller 101 being moved into contact with the strip and the shaft 14 (and thus members 20 and surface 47) being rotated by motor 48. Finally, the members 20 are moved radially inwardly and the bead wire and apex strip assembly is removed. The housing 11 may be movable towards housing 12, and the housing 12 may then be stationary or movable towards the housing 11. Where the stitching roller is unnecessary, the shaft 14 will not be rotatable. If the roller is necessary, it may be rotated around the axis of the shaft 14, or the shaft 14 may be rotated manually. The shaft 65 may also be rotated manually.
Patent GB-1259881-A (GB)
Title: Fire control systems for guns
Inventor: VICKERS ROY GILBERT
IPC: G06G7/80
Filed: 1969-10-20
Abstract: 1,259,881. Sights and methods of sighting. BRITISH MFR., & RESEARCH CO. Ltd. 13 July, 1970 [14 July, 1969; 20 Oct., 1969], Nos. 35420/69 and 51284/69. Heading F3C. A fire control system, for use with a gun 1 on a mounting provided with gunner-operated means for effecting angular elevation and traverse movements of the gun, has an optical gunsight which may be a periscopic gunsight 5, Fig. 1, provided with a prism 4, has a linkage 3 which connects the gunsight 5 to the gun 1 so that the objective axis of the gunsight 5 is in parallel relationship with the aiming axis of the gun, has means for producing signals proportional respectively to the angle of gun elevation, to gun tracking velocity in elevation and to gun tracking velocity in traverse, has a computer 7 arranged to operate with said signals as INPUT signals, has selector means 11 for modifying said INPUT signals according to a given range and the projectile time of flight for said given range, has an optical display unit 13 which is combined with the gunsight 5 to superimpose on the field of view of the gunsight a visual aiming point indicator in the form of a circle of light 15, Fig. 2, and has means for controlling the optical display unit 13 by OUTPUT signals from the computer 7, said OUTPUT signals being proportional to tangent elevation and computed future target position at said given range and determining the position of the aiming point indicator 15. The means for producing signals proportional to the angle of gun elevation may be a constant signal source which comprises a transducer 12, Fig. 1, driven by a gun-elevating sector 2, the signals being received by section 8 of the computer. A manually-operated joystick 6 controls a servo-mechanism to move the turret (not shown) and the gun, and section 9 of the computer 7 receives from said servomechanism an electrical signal proportional to the elevation velocity of the gun when a target is being tracked. Similarly section 10 of the computer receives from the servo-mechanism a signal proportional to the traverse velocity. OUTPUT signals are fed from the computer to the optical display unit 13 which displays on the face of a cathode ray tube 14, in the field of view through the gunsight 5, the aiming point indicator 15. A circuit diagram of the computer and its connection with the optical display unit 13 is shown in Fig. 3.
Patent GB-1114358-A (GB)
Title: Improvements in or relating to nozzle plates
IPC: B01J47/022
Filed: 1966-11-16
Abstract: 1,114,358. Ion exchange. FARBWERKE HOECHST A.G. 16 Nov., 1966 [16 Nov., 1965], No. 51293/66. Heading B1J. An ion-exchange apparatus has a nozzle plate 3, which is loaded by the exchanger bed, supported by and attached to a cylindrical body 1 which itself is attached to the bottom of the column. The body has a diameter within the range of 0.25 to 0.4 times that of the column, extends from the point of attachment to the nozzle plate, through and beyond the bottom of the column to such a position that the portion of the cylindrical body projecting from the bottom of the column has a length within the range of 1.2 to 1.3 times the souare root of the product of the diameter and the wall thickness of the cylindrical body. Liquid may pass through the lateral holes 4 to outlet 7. A manhole 8 may be provided.
Patent GB-1090615-A (GB)
Title: Methods and apparatus for forming necked containers from thermoplastic sheet material
IPC: B29C51/04
Filed: 1964-12-17
Abstract: 1,090,615. Sheet forming. ILLINOIS TOOL WORKS Inc. Dec. 17, 1964 [Dec; 17, 1963], No. 51401/64. Heading B5A. In a plunger assisted blow moulding process, for forming containers having reduced neck portions, the female die comprises a fixed bottom part 32 and a pair of cam-operated radially movable upper parts. Each upper part comprises a lower section 34 or 35 and an upper section 36 or 37, the lower sections being replaceable with other sections of various sizes so that the size of the blown article may be varied. The sheet 24 is first heat-softened, clamped by 26, and then predrawn by lowering the plunger 28 until shoulder 87 mounted thereon, engages rim 58 on the upper mould parts, which parts have been forwarded to their operative positions as shown in Fig. 5. A rim is thus formed on the partially drawn container, and the partially formed container severed from the rest of the sheet. The container is finally fully blown through the plunger, and the finished article is removed by withdrawing the upper mould parts and raising ejection plunger 42.
Patent GB-1491589-A (GB)
Title: Uniformly cooled printed circuit board mounting assembly
IPC: H05K7/20
Filed: 1975-12-16
Abstract: 1491589 Printed circuit board assemblies A D CALABRO 16 Dec 1975 [30 Sept 1975] 51450/75 Heading H1R A cooled printed circuit board mounting assembly 10 comprises a cage 12 holding printed circuit boards, a plenum chamber 14, a blower 16, and baffles 18 within the plenum chamber. End plates 20 and 21 of the cage are interconnected with parallel spaced members 22, retaining mounting devices 24 of the boards 26  along upper and lower parts of cage 12. Plural electronic circuits 30 are mounted on the cards and generate heat. The rectangular plenum chamber 14 has closed bottom and sides 40, 42 and is closed by a plate 44 with openings 48 aligned with the board spacings. Blower 16 forces air into the chamber through opening 46 of the chamber, which contains perforated semicircular interconnected baffles 18 creating turbulence. A filter 60 is placed over the blower intake and the bulk air at low velocity is directed evenly over the printed circuit boards.