baber/WOPTO huggingface dataset:
Patent GB-1234391-A (GB)
IPC: F04D29/12
Filed: 1967-05-09
Abstract: 1,234,391. Centrifugal pumps. A. P.V. Co. Ltd. July 19, 1968 [May 9, 1967], No.21398/67. Heading F1C. [Also in Division F2] A centrifugal pump has an impeller 11 integrally formed with a hollow driving-shaft 13 connected externally of impeller chamber 9 to a transmission shaft 23 via a dog coupling 25, 26 arranged to allow the shaft 13 to move axially of the shaft 23. A compression spring 33 applies axial sealing pressure directly to a sealing ring 30 and through the axially-movable shaft 13 to a sealing ring 27. A ring 32 applies peripheral sealing around the shaft 13. The rings 27, 30 and an associated bush 28 may be of synthetic plastics or a natural or synthetic rubber compound. The impeller has six vanes 12 each with a radial pumping bore 17 therethrough. The liquid is delivered through the bores 17 into the chamber 9 by centrifugal force and is discharged from the chamber 9 through outlet 5 by a combination of the centrifugal force and the effect of the rotating vanes 12. The inlet 4 is vacuum brazed to casing portion 3.
Patent GB-1239325-A (GB)
IPC: B60V3/04
Filed: 1969-03-12
Abstract: 1,239,325. Levitation systems. SOC. DE L'AEROTRAIN. 12 March, 1969 [19 March, 1968], No. 13117/69. Heading B7L. [Also in Division F2] A fluidic track 2 for levitated transportation comprises a track surface 3, 4 having a plurality of valve-controlled nozzles 7, 28 which discharge pressure fluid, on actuation by a movable body 1 on the track, from a succession of chambers 6, each communicating with a corresponding chamber 12 of a supply main via throttled passages 13, 13a which delay re-charge of the chambers 6, to eliminate the possibility of collision between two bodies 1 moving in the same direction along the same track. The body 1 is guided by a central rib 3 and has a number of lift and guidance cushions 9 and 10, and the nozzles 7 are inclined in the direction of motion to provide lift and propulsion. The pressure fluid is supplied by compressors 15, and the partitions 16, 17 defining the chambers 6, 12 having openings 21, 22 closed by non-return valves 18, 19 allowing fluid flow therethrough only in the direction of travel. Each nozzle 7, normally closed by a spring-loaded arm 32 carrying a valve 8 (see Division F2), is opened by the pressure in the cushions 9. The valves 8 may also be solenoid operated, opened by a magnetic field created by the moving body 1. The orifices 13 may be replaced by variable area restricted orifices 13a (see Division F2) whose area is a function of the maximum pressure difference between the supply main and the chamber 6, thus providing a constant time of re-charge of the chamber 6 irrespective of the pressure drop therein.
Patent GB-1251186-A (GB)
IPC: D21G9/00
Filed: 1967-12-07
Abstract: 1,251,186. Drying apparatus. WALMSLEYS (BURY) Ltd. 6 Dec., 1968 [7 Dec., 1967], No. 55606/67. Heading F4G. A drying apparatus e.g. for a papermaking machine, comprises upper and lower sets of drying cylinders 16, each upper cylinder 16 being supported in bearings 22 supported by one or two beams 20 extending longitudinally of the apparatus and carried between transverse beams 18 extending to one side of the cylinders by a distance equal or approximately equal to the width of the cylinders, and the lower cylinders 16 being supported in bearings 33 carried by beams 30. The cylinders 16 are driven via gears (e.g. made of plastics) by a common drive shaft 42. The beams 18 are supported by supports 32 which can also support the roof 62. The lower part of the apparatus is mounted in a pit 58. In use the web to be dried is held on the drying cylinders 16 by felts and the moist air is exhausted by fans 64, 74 through conduits 66, 70.
Patent GB-1252324-A (GB)
IPC: F02P3/04
Filed: 1969-04-02
Abstract: 1,252,324. Ignition systems. LUMENITION Ltd. May 4, 1970 [April 2, 1969], No. 17363/69. Addition to 1,219,833. Heading F1B. In the ignition system claimed in parent Specification means are provided to stablize the voltage across the terminals of the radiation  sensitive element. The voltage stabilization means may be a capacitor C1 or a Zener diode Z which is connected in parallel with the infrared radiation source 10 and the radiation sensitive element. The radiation sensitive element may be a photodarlington pair or triplet. For Figure see next page
Patent GB-1257504-A (GB)
IPC: H01R13/646
Filed: 1969-06-11
Abstract: 1,257,504. Two part couplings. NORTH WESTERN SPECIALITIES Ltd. 14 Aug. 1970 [11 June, 1969], No. 29585/69. Heading H2E. A unitary coaxial cable and plug (Fig. 1, Fig. 2) has the cable screen C connected to one terminal 11α of the capacitor 11 and the cable core c connected to one terminal 13a of the capacitor 13, and the other capacitor terminal ends 11b, 13b are connected respectively to the tag 15 on the plug shell 16 and the tag 17 on pin 18. The cable, capacitors and the ends of the plug shell and pin are retained in position by an injection moulding of synthetic plastic material which provides the outer insulating body of the plug. The capacitor may be surrounded by a heat shrinkable sleeve 14 and their terminals connected to the cable by crimping the sleeves 10, 12 and to the plug by crimping the tags 15, 17. The plug shell may be in the form of a split sleeve. A locating member may be provided to maintain the shell and pin coaxial during moulding and is not removed.
Patent GB-1258379-A (GB)
IPC: H01F7/16
Filed: 1970-02-26
Abstract: 1,258,379. Valves. MACLAREN CONTROLS Ltd. 26 Feb., 1970, No. 9358/70. Heading F2V. [Also in Division H1] A solenoid actuator e.g. for two stage valves comprises a non-magnetic plunger tube 1 carrying separate spaced windings 2, 3 each provided with a C-shaped yoke 4, 5. Within the tube are positioned a fixed ends top 6 and plungers 7, 8 all of magnetic material of which 7 is adjacent the ends top and 8 projecting from the remote end to operate load 22. The plungers and ends top have mating coned ends with cylindrical recesses 9, 10, 11, 12 in the apices; coaxial with the plungers; and compression springs 13, 14 respectively rest in recesses 9, 10 and 11, 12; spring 14 being weaker than 13. Ends top 6 and plunger 7 are centrally bored at 15, 17 and an axial double-headed pin has one head captive in chamber 18 of the plunger and the other captive in recess 20 of screw 21 engaging recess 16 of the ends top; the shank of the pin traversing the bores. With neither winding energized the springs urge the plungers apart until 7 is restrained by pin 19 and 8 is restrained by the rest position of the load. On energization of winding 3, plunger 8 is drawn into it, raising load 22 and compressing spring 14 until arrested by plunger 7. On energization of winding 2, plunger 7 is drawn towards ends top 6 compressing spring 13 and permitting further increment of plunger 8, so that the load is movable a short step by energizing 3, a further short step by then energizing 2, or alternatively a long step by energizing both simultaneously. Restoration may be similarly stepped on deenergization.
Patent GB-1259221-A (GB)
IPC: B65H3/52
Filed: 1969-07-02
Abstract: 1,259,221. Separating sheets. INTERNATIONAL BUSINESS MACHINES CORP. 2 July, 1969 [11 July, 1968], No. 33305/69. Heading B8R. A sheet-feeding device comprises a stack hopper, separating means to feed sheets in turn from the stack, a side wall along which sheets being separated are guided, a guide mounted at an adjustable distance from the side wall to position the stack therebetween, and means interconnecting the adjustable guide and the separating means to cause proportional relative movement between the separating means, the adjustable guide and the side wall. General arrangement, Fig. 1.-Documents are stacked on a bed-plate 19 within a hopper, one side edge of the stack 18 abutting against a wall 21, and the leading edge abutting against a front wall 14. Individual documents are separated by friction belt 26 and then pass between a further belt 44, moving in the same sense as belt 26 at a higher speed, and reverse-acting belt 60 which prevents double feed by holding back a second document until the first has passed over guide plate 30; rollers 35, formed of segmented resilient material, project through apertures in plate 30 and are angled in the feed path to co-operate with idler rollers 36 and align the documents against side guide plate 33, which is a continuation of the wall 21 of the hopper. Adjustment of separating device, Fig. 3.-After positioning of the stack 18 of documents on plate 19 in alignment with walls 14, 21, an edge guide surface 70 mounted on a lever 65 pivoted at pin 66, Fig. 1, is brought into engagement with the side of the stack opposite to that abutting wall 21. Pivoting movement of lever 65, through connecting link 72, causes a plate 54, carrying belt 60, and a separator frame 40, carrying belts 26 and 44, to move horizontally along a pair of shafts 38. Thus the position of belts 26, 44 is dependent on the width of the sheets being fed. Preferably, belt 44 is arranged so that its centre line is one-third of the width of the sheets away from wall 21.
Patent GB-1259636-A (GB)
IPC: B65H54/86
Filed: 1969-01-10
Abstract: 1,259,636. Winding yarns. COMPAGNIE DE SAINT-GOBAIN. 10 Jan., 1969 [11 Jan., 1968], No. 1550/69. Heading D1J. Apparatus for winding thread, e.g. of freshly extruded thermoplastic material such as glass, onto a spool carried on a winding spindle includes an auxiliary winding device comprising fingers mounted for rotation as a group about an axis and which, on completion of the wind and then during removal of the wound spool and its replacement by a fresh spool, are moved into, and subsequently from, a position in which they extend over an end part of the spindle so that waste thread may be wound thereon (and drawing of the filaments continued) and then freed for removal as normal winding is resumed. In the automatic, programmed operation of the apparatus shown, a pneumatic ram 18 operates a pivoted arm 5 to move the auxiliary winding device from inoperative to operative position in which the axes A-A and B-B of the device and the winding spindle 1 are coincident and whereby forks 21, 22, engage the threads being separately wound. Fork 21 is moved by a ram 19 towards the device and in the course of its travel entrains the fork 22. The rotational speed of spindle 1 and a group of fingers 7 carried on and pivotable in relation to a rotating ring 6 are gradually synchronised; a circular plate 9, through slots 10 in which the fingers protrude, is moved by a ram 11 to cause finger 7 to pivot into a position in which they embrace the end of the spindle. A ram 20 shifts the assembly including the forks 21, 22, so that the threads are then taken up as a waste winding around the fingers 7 thus enabling wound and empty spools to be interchanged on spindle 1. The lateral displacement of the forks 21, 22, is then reversed by rams 20 and 19 to enable winding of thread onto the fresh spool to commence. Ram 11 reverses to enable plate 9 to withdraw fingers 7 from the spindle 1 and, finally, arm 5 is rocked to restore the device to its inoperative position.
Patent GB-1265492-A (GB)
IPC: C08J3/215
Filed: 1968-11-25
Abstract: 1,265,492. Coloured polymers. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT POLIGRAFICHESKOI PROMYSHLENNOSTI. 25 Feb., 1970 [25 Nov., 1968], No. 55726/68. Heading C3P.  Finely divided, coloured polymers are made by preparing an aq. latex of a polymer which is insoluble in alcohol, by emulsion polymerization of one or more monomers in the presence of a monomer-soluble initiator and an emulsifier which is a salt of a fatty acid and adding the latex to an alcoholic solution of a dye to cause simultaneous coagulation and dyeing of the polymer. The monomer may be styrene, methylmethacrylate and/or acrylonitrile. The emulsifier may be sodium oleate, prepared in situ. Benzoyl peroxide may be used as a catalyst.
Patent GB-1265836-A (GB)
IPC: A41B3/00
Filed: 1969-10-15
Abstract: 1,265,836. Laminates. NARAKEN S.A. 15 Oct., 1969 [15 Nov., 1968], No. 50646/69. Heading B5N. [Also in Division A3]  Material especially for collars comprises a layer 1 of felt or melton and an inner layer 2 of hempen cloth with a coating 5 of thermoadhesive resin applied to it. The layers 1, 2 are attached to each other by the action of the heating tips (3) of a press (4) (Fig. 2, not shown) on the adhesive layer 5 so that there is adhesion only at the points 5<SP>1</SP>. The collar shape is cut from the material and the edge 6<SP>1</SP> of the upper collar 6 (of the same fabric as the garment to which the collar is to be attached) is inserted between the layers 1 and 2 and secured by stitching 7. Adhesion is completed over the remainder of the interfacial area between the layers 1, 2 by hot ironing.
Patent GB-1288769-A (GB)
IPC: H04N5/781
Filed: 1969-11-05
Abstract: 1288769 Video magnetic discs NIPPON VICTOR KK 5 Nov 1969 [9 Nov 1968] 54339/69 Heading G5R  In a video magnetic disc recording/reproducing system such as disclosed in Specification 1,269,606, in which heads 14, 15 are moved alternately and intermittently a predetermined distance along a radius from one circular track to the next by pulsed motors 16, 17 driven by pulses controlled by the field or frame synchronizing signals, fast motion reproduction is achieved by multiplying the number of pulses delivered to the pulsed motors 16, 17 so that the heads 14, 15 are moved by a multiple of the predetermined distance of normal recording or reproduction. Fields F 1  . . . F 12  are recorded alternately by heads 14, 15 each head being stepped on by two associated pulses, Fig. 4 (not shown), so that normal playback may be achieved by similar control of the pulse motors to give Fig. 5A. By doubling the number of pulses supplied to each motor, Fig. 5B and 5E, fields as shown in Fig. 5D and 5G are played back to give a composite output, Fig. 5H. The total number of pulses applied to the head-moving motors are counted (28, Fig. 3, not shown) and form an address as described in Specification 1,288,770.
Patent GB-1289589-A (GB)
IPC: G10C1/06
Filed: 1970-04-08
Abstract: 1289589 Harpsichord jacks W J ZUCKERMANN and D J WAY 8 July 1971 [8 April 1970] 16684/70 Heading G5J A harpsichord jack is moulded from synthetic plastics material as is the resiliently deformable tongue 5 which is attached by inserting an extension 5a into a matching recess in the body of the jack. In this way the functions of the previous spring and tongue-pivot are combined.
Patent GB-1294853-A (GB)
IPC: G01N27/66
Filed: 1968-10-03
Abstract: 1294853 Ionization gas analysis DEFENCE SECRETARY OF STATE FOR 5 Jan 1970 [3 Oct 1968] 46905/68 Heading G1N [Also in Division H1] A gas or vapour sample is analysed by mixing the sample with a pure inert gas having an ionization potential greater than or equal to the ionization potential of the sample, exciting, by means of a radio-active source, the mixture at a pressure between 5 and 40 torr to ionize at least a proportion of the sample, and comparing the resulting ionization current with the current resulting under the same excitation conditions in a stream of the inert gas alone. As shown, the rare gas and sample enter through inlet 3 from which it is passed through a detector 6 having a cathode 7, an anode 9, and a radio-active source 16. The detector is surrounded by a vacuum sealed casing 1. The pressure is maintained within the limits by a pump connected to the outlet 4. In Fig. 2 (not shown), a purified inert gas is first passed through a chromatographic column and thence to the detector 6 and the ionization current is measured. The gas sample is then injected into the inert gas stream upstream of the chromatographic column and the resulting ionization currents measured.
Patent GB-1295855-A (GB)
IPC: H02J3/36
Filed: 1969-05-09
Abstract: 1295855 HVDC transmission systems ENGLISH ELECTRIC CO Ltd 1 May 1970 [9 May 1969] 23663/69 Heading H2F In an HVDC supply system, oscillations occurring after large disturbances are minimized by an auxiliary loop 17, 15, 14 in the control system having a specified transfer function and being responsive to the rate of change of absolute phase of one or both the A.C. sides. As shown, the conduction angle of the rectifying station 13 and inverting station 12 is regulated by means of a circuit 14 responsive to a manually set power or current order signal at 16. In the event of a disturbance such as switching of a large load or temporary short-circuit the resulting oscillation on the A.C. side results in a change of phase which is determined at 17 and used to make appropriate correction to the control system. The phase measuring circuit (Fig. 2, not shown) may be as described in Specification 1,285,997 in which the phase of the A.C. side is compared with that of a voltage controlled oscillator, the phase of which is adjusted in dependence on the output of the phase comparator after operation by an amplifier having capacitance in both forward and feedback paths. Three such systems may be fed from the respective phases of the three-phase supply.
Patent GB-1296134-A (GB)
IPC: B01D29/11
Filed: 1970-03-26
Abstract: 1296134 Cleaning cylindrical filters STORK AMSTERDAM NV 26 March 1970 [27 March 1969] 14725/70 Heading BID Inward flow filter element 6 is cleaned with filtered liquid from chamber 21 by moving piston 13 downwards so that the liquid is forced up tube 20 and out through annular gap 19 so that the liquid is forced through spaces 8 in the element 6 as gap 19 passes downwards past the, spaces 8. After cleaning the element, filtered liquid is drawn into space 21 through tube 20 by suction as piston 13 is drawn upwards. The element 6 may have a wire sleeve wound on it, or spaces 8 may be filled with filtering media. Element 6 may also comprise filter rings and metal rings clamped together by rods.
Patent GB-1304518-A (GB)
IPC: C25B1/36
Filed: 1969-06-27
Abstract: 1304518 Anode assemblies IMPERIAL CHEMICAL INDUSTRIES Ltd 18 May 1970 [27 June 1969] 32544/69 Heading C7B An anode assembly for a mercury cathode cell for electrolyzing alkali metal chloride solution comprises a Ti tube 2 closed across its lower end in fluid-tight manner e.g. by welds 3 with an inverted Ti channel shape 1, which electrically connects e.g. by welds 6 to a parallel foraminate Ti structure 7 carrying on at least part of its surface a coating (not shown) comprising an operative electrode material, and an Al current lead-in rod 4 coaxially and at least partially within the tube 2, friction-welded at its end 5 to the shape 1. The structure 7 may be a sheet of expanded Ti metal, or built up from spaced apart parallel strips, Fig.3 (not shown), rods or hemicylindrical or U-shaped channels each welded at one long edge to the edges of the shape 1, or a louvred structure formed by pressing out a series of louvre slats from a Ti sheet, the slats being turned at right angles to the plane of the sheet or having their edges rolled round to form hemicylindrical members alternating with the pressed out slots. Openings for escape of gas may be provided in the laterally extending parts of the shape 1, Figs.5 and 6 (not shown). The operative electrode material may consist of at least one Pt group metal (i.e. Pt, Rh, Ir, Ru, Os and Pd) and/or oxides thereof, or Re, ReO 3 , magnetite, Ti nitride, a Pt group metal boride, phosphide or silicide, or an oxidic semiconducting compound; the coating may also contain an oxide of a film-forming metal such as TiO 2  when the operative electrode material is a Pt group metal oxide e.g. RuO 2 .
Patent GB-1311652-A (GB)
Title: Boring tools
IPC: B23B29/034
Filed: 1969-05-12
Abstract: 1311652 Boring tools W W GREEN 15 June 1970 [12 May 1969] 24058/69 Heading B3C A boring tool comprises a body 10, Figs. 1, 2, a member 14 screwed into the body and having a frusto-conical surface 15 which co-operates with a ball 23 so as to adjust a cutting bit 22 in the radial direction, and also with balls 24 which guide the tool in the bore being machined. A further diamond-tipped cutting bit 26 is provided, and member 14 has a scale 19 which indicates the radial position of the cutting bits. In a modification, a tool for boring a blind bore comprises a member 29, Fig. 3, having a tapered end 31. In a further modification, the tool bit has a screw cutting edge, and means for retracting the bit is provided. In a still further modification the tool is provided with means for progressively adjusting the axial position of member 14, so that a tapered bore can be machined.
Patent GB-1314001-A (GB)
Title: Hydraulically-operated lifts for road vehicles
IPC: B60P1/44
Filed: 1968-12-10
Abstract: 1314001 Vehicle load-lifting platforms E M WILCOX Ltd 10 March 1970 [10 Dec 1968 4 March 1969] 58617/68 and 11402/69 Heading B8E A loading platform 7, Fig. 3, for a vehicle, is raised by a pair of rams 15, 15a which rotate a tubular member 8 to which a pair of arms 10 are attached. Links 18, 19 maintain the platform parallel with the ground as it is raised. The links 18, 19 are held in the position shown by a slotted link 24 which permits the platform to be folded into the stowed position shown in Fig 4 by a ram 29, Fig. 3. In use the platform is raised flush with the load-platform of the vehicle.
Patent GB-1322121-A (GB)
Title: Method of and apparatus for separating fluids having different  densities
IPC: E02B15/04
Filed: 1971-03-18
Abstract: 1322121 Centrifugal separation REYNOLDS SUBMARINE SERVICES CORP 18 March 1971 7233/71 Heading B2P [Also in Divisions B7 and F1] In a method of separating two fluids of different densities the mixture of fluids is passed through an axial flow pump which causes the heavier fluid to separate radially from the lighter fluid to form a sheath flowing around the outside of a core of lighter fluid. An extractor tube is positioned in the flow from the pump to derive from it a secondary flow consisting principally of the lighter fluid and any heavier fluid contained in the secondary flow is separated from it by gravity. As shown the method is employed in barge 24 to dispose of an oil slick contained by a floating boom. A mixture of oil and water of the slick passes over weir 32 of the barge and reaches axial flow pump 48 via conduit 46 and primary intake 60. Extractor tubes 64, 66, 68 remove the central core or secondary flow of mainly oil and the primary flow of water proceeds via conduit 69 (Fig. 13) to a propulsion and steering assembly 58.
Patent GB-1328977-A (GB)
Title: Arrangement for controlling the power output of a turbine
IPC: F02C9/28
Filed: 1970-05-24
Abstract: 1328977 Electric correspondence control systems ULTRA ELECTRONICS Ltd 4 Dec 1970 [26 May 1970] 25234/70 Heading G1N A gas turbine engine wherein the gasifier speed is controlled electrically by the voltage from a potentiometer 11 whose slider is mechanically linked to an accelerometer pedal 1, is normally adjustable over an arc A of pedal 1, between stops 4, 5. When the temperature of the inlet air is low, the stop 5 position may demand a power output which is above the maximum for the transmission. This temperature is sensed by a wax-loaded thermometer bulb 14 coupled by capillary 15 to a Bourdon tube 16 fixed at one end 17, whereby its free end limits the movement of the slide arm 8 of the potentiometer 11. Pin 9 and slot 10 still allow movement of the pedal 1 over arc A.