baber/WOPTO huggingface dataset:
Patent GB-1266827-A (GB)
IPC: G01K11/00
Filed: 1970-06-16
Abstract: 1,266,827. Thermometers. DRESSER INDUSTRIES Inc. June 16, 1970 [June 16, 1969], No. 29141/70. Heading G1D. A gas adsorption thermometer comprises a multi-turn helical Bourdon tube 72 connected by a capillary tube 16 to a sensing bulb 14 containing granules of a gas-adsorbing material, the Bourdon tube being housed in a chamber 54 of a casing 12 containing a silicone oil to a level 82 to damp vibrations of the Bourdon tube, one end of the Bourdon tube being fixed and the other end being adjustably engaged by a spider clamp 84 connected directly or indirectly to a shaft 74 carrying a pointer 108. The Bourdon tube is of beryllium copper and is charged, together with the bulb 14 and tube 16, with an inert gas such as helium, neon, argon, xenon, or krypton. The adsorbent material may be activated carbon, activated alumina, silica gel, or zeolites. The bulb is housed in a tubular well 190 and connected to the capillary tube 16 by a bendable sleeve 198. The chamber 54 comprises two members 50, 52 screwed together and secured to a wall 22 of the casing 12. A bearing sleeve 130 for the shaft 74 extends into the chamber 54 to prevent leakage of the oil if the instrument is positioned face-downwards. The pointer 108 is adjustably mounted on the shaft 74 by a friction coupling 110. A reference pointer 162 is positioned against a scale card 32. The spider 84 is clamped at 104 to the Bourdon tube at a position selected to give a required effective length of the tube. As shown, the spider is secured on the shaft 74. In a modification, Figs. 6, 7 (not shown), the spider is freely rotatable on the shaft 74, and a spiral bimetallic element (208) connects one arm of the spider to the shaft 74 to correct for ambient temperature variations.
Patent GB-1288498-A (GB)
IPC: H02G3/06
Filed: 1970-10-27
Abstract: 1288498 Electric couplings MASCHINENFABRIK OERLIKON 27 Oct 1970 [27 Oct 1969] 51037/70 Heading H2E [Also in Division H1] A gas cooled electrical supply lead comprises a conductor consisting of a plurality of twisted or corrugated individual strands randomly bunched together and placed in a tube or sleeve through which a coolant gas flows. As shown a joint between the conductor bundle of such a lead and a terminal is produced by introducing conductor bundle 6 into the conical bore of connecting conductor 7 until it impinges on a sealing disc 8. Conical mandrel 9 is centred and forced in and loaded with a force P, which is such that plastic deformation of the wire occurs at the contact joints between them. The connecting conductor is electrically heated to the fusion temperature of silver solder 11, supplied through aperatures 10, and the conductor bundle is welded together and to the connecting conductor 7. On cooling the mandrel is removed to leave a flow channel for the coolant gas.
Patent GB-1289671-A (GB)
IPC: G03B27/58
Filed: 1970-01-01
Abstract: 1289671 Feeding sheets and webs RICOH KK 1 Jan 1970 [25 Jan 1969] 68/70 Heading B8R A photocopying machine comprises a support 1a for a roll of copying paper 1; solenoid actuated feed rollers 3 for advancing the paper to a cutter 4; charging, exposure and developing devices 5, 6, 8; and a photosensitive device 9, 10 which produces a signal to stop the operation of the feed rollers 3 in the absence of paper on the support 1a. As shown, the roll of paper is illuminated by a light source 9 and the reflected light is detected by a photo-conductive element 10. The length l 0  of the path P o  between the point of reflection A and the cutter 4 is greater than the length 1 1  of the path P 1  between feed rollers 8a, 8b of the developing device 8, 1 1  being the length of sheet which is required to be cut from the roll. Thus, if paper is present at point A there is a sufficient length available to produce at least one sheet of correct length; when, however, the paper is almost exhausted so that its length in the path P o  is less than 1 1  and is therefore not suitable for use, it will not be present at the point A. This absence is detected by the element 10 which produces a signal to inhibit operation of the feed rollers 3, so that the unsuitable tail-end of the roll is not advanced further into the machine. A suitable transistorized control circuit is described with reference to Fig. 2 (not shown).
Patent GB-1290663-A (GB)
IPC: A61M16/00
Filed: 1968-10-16
Abstract: 1290663 Breathing apparatus SIEBE GORMAN & CO Ltd 8 Oct 1969 [16 Oct 1968] 48991/68 Heading AST Breathing apparatus comprises an inhalation conduit 3 supplied with breathing gas from a cylinder 2 through a pressure regulating valve 5, and a by-pass conduit 6 having a device 10, e.g. a whistle adapted to give a warning signal when gas flows through the device, there being a valve 23 which supplies gas to the device 10 when the pressure in the cylinder 2 falls below a fixed value. Valve 23 has an orifice 26 controlled by a needle valve 30. High pressure in cylinder 2 forces the valve against a stopper 21 against the action of a spring 27, thus closing orifice 26 and preventing operation of the whistle. As this pressure drops spring 27 moves valve 23 along a part 7 and orifice 26 is cleared, allowing gas to flow to the whistle via apertures 18 and 22. Regulator 5 has a constant flow resistance or a pressure dependent resistance to maintain the gas flow constant. The cylinder also has an on-off valve (not shown) controlled by handle 4.
Patent GB-1296942-A (GB)
IPC: D06M10/00
Filed: 1971-04-19
Abstract: 1296942 Coated products KURARAY CO Ltd 19 April 1971 [27 Feb 1970 12 June 1970] 22055/71 Heading B2E A sheet material having a porous and fibrous base and a non-porous polymeric surface film is rendered moisture permeable by impregnating the porous base with, an aqueous medium and subjecting the impregnated material to electrical discharge to form perforations in the surface film. The porous base may be non-woven cloth, woven or knited fabric, or paper, any of which may be impregnated, or may consist of a porous polymer layer and a fibrous layer, especially a first layer of polymer-impregnated non-woven nylon cloth and a second layer of porous polymer produced by a coagulation technique. The non- porous film may be of polyurethane, polyamide, polyester, polyamino acid resin, polymethacrylate, PVC, polyvinyl acetate, polyisoprene or butadiene/acrylonitrile copolymer and these polymers, especially polyurethane, may also be used in the porous base layer. The non-porous film is applied to the base by spraying or coating, as a pre-formed film, or by partial dissolution and drying or partial melting and cooling of the surface of the porous polymer layer if this is used. The aqueous medium used to impregnate the porous base may be water, optionally with a surfactant, or an aqueous electrolytic solution and is applied by immersion, spraying or padding. The electrical discharge is usually a rectangular wave form pulse spark discharge.
Patent GB-1297158-A (GB)
IPC: C01G43/01
Filed: 1969-11-12
Abstract: 1297158 UO 2  and U 3 O 8  NUKEM NUKLEAR - CHEMIE UND METALLURGIE GmbH 12 Nov 1969 55386/69 Heading C1A In a process for the preparation of a sinterable material from waste ceramic UO 2 , the waste ceramic UO 2  is worked up into a UO 2  or U 3 O 8  powder with a particle size of less than 150 Á by (a) oxidation of waste UO 2  in an oxidizing atmosphere into finely divided pure U 3 O 8  powder with optional reduction to UO 2  powder, or by (b) treatment of a UO 2  grinding slurry with steam or water vapour at elevated-temperature to remove grinding oil and produce a UO 2  powder, or by (c) drying a UO 2  grinding slurry into a UO 2  powder; and mixing the UO 2  or U 3 O 8  powder produced in steps (a), (b) or (c) with sinterable UO 2  powder in an amount such that the mixture contains at least 80% by weight of sinterable UO 2 .
Patent GB-1297349-A (GB)
IPC: B60S1/48
Filed: 1971-04-30
Abstract: 1297349 Windscreen cleaning systems SOC ANON STOP 30 April 1971 [15 May 1970] 12491/71 Heading A4F The closing of a control switch I energizes simultaneously a motor P to drive a windscreen washer pump and a coil B1 on a magnetic core N to close a relay contact L, thereby to energize a relay G to actuate a windscreen wiper. On opening the control switch 9 the motor P is deenergized and the washer pump stops almost immediately, but the stopping of the windscreen wiper is delayed during the charging of a capacitor C in series with a second core B2 on the core N. The current through the coil B2 is sufficient to maintain the contact L closed until this current has been reduced to a predetermined value by the charging of the capacitor C, when the contact L opens and the windscreen wiper stops. The windscreen wiper may also be energized independently of the windscreen washer by a control signal K. In an alternative embodiment the coil B2 is connected to the positive supply terminal directly, and not via the contact L.
Patent GB-1301282-A (GB)
IPC: F02C7/06
Filed: 1969-07-15
Abstract: 1301282 Gas turbine engines; bearing systems DEFENCE SECRETARY OF STATE FOR 3 July 1970 [15 July 1969] 35681/69 Heading F1G A multi-shaft gas turbine engine comprises a first bearing chamber and a second bearing chamber each containing at least one bearing, there being ducting which communicates between both bearing chambers. The engine shown is a three-shaft by-pass gas turbine engine and comprises LP compressor or fan 7, IP compressor 4, HP compressor 1, combustion equipment 10, HP turbine 3, IP turbine 6 and LP turbine 9, the LP, IP and HP compressors and turbines being drivingly interconnected by shafts 8, 5 and 2 respectively. The shafts are supported by seven bearings A, B, C, D, E, F, G, the LP shaft being supported at its forward end by bearing A which is supported by stator structure 20, at an intermediate point by bearing B located between the LP and IP shafts 8, 5 and at its downstream end by bearing G which is supported by stator structure 21. The IP shaft 5 is supported at its forward end by bearing C which is supported by stator structure 22, and at its rearward end by bearing F which is supported stator structure 21. The HP shaft 2 is supported at its forward end in bearing D which is supported by stator structure 22 and at its rearward end by bearing E located between the HP and IP shafts. The bearings E, F, G are located in a rear bearing chamber 25 which is sealed by seals 26, 27, 28 through which pressurized air is allowed to leak into the chamber. The bearings B, C, D are located in an intermediate bearing chamber 30 which is sealed by seals 31, 32 through which pressurized air is allowed to leak into the chamber. The front bearing A is located in a front bearing chamber 35 which is sealed by seals 36, 37 through which pressurized air is allowed to leak into the chamber. The intermediate and rear bearing chambers 30 and 25 are interconnected by a tube 40 which is located between the HP and IP shafts 2, 5. The intermediate chamber 30 is connected to the front chamber 35 by passages 41 around the bearing B. Oil under pressure is supplied through line 54 and tube 45 located within the LP shaft 8 and passes to the bearings through metering orifices such as 46, 47 in the shafts 8, 5. The lubrication system is shown in Fig. 2 and comprises a main pump 52 which takes its suction from tank 51 and supplies oil through line 54 to the bearings A, B, C, D, E, F, G. Oil is withdrawn from the bearing chambers by scavenge pumps 65 and returned through line 67 and cooler 69 to the oil tank 51.
Patent GB-1307173-A (GB)
Title: Method of mixing materials
IPC: B01F7/00
Filed: 1971-07-30
Abstract: 1307173 Mixing apparatus DR HERFELD KG 30 July 1971 36036/71 Heading B1C A mixer for plastics and chemicals comprises a container having a cylindrical portion 4a and a tapered portion 4b, a rotatable lowspeed stirrer 7 on a shaft passing through the container bottom, and one or more high speed stirrers on shafts 13 passing through the side wall, the principal purpose of which is to beat the mix by friction. In operation the container is filled so that the blades 14a, 14b, 14c dip into the mix and urge it round the container preferably in the same sense as the stirrer 7; the latter rotates at 50-500 and preferably 70 rev./min., and the shafts 13 preferably at 3,000 rev./min. The blades 14a, b, c may be of triangular cross-section and arranged to urge the material towards the container side wall. The motors 15 may be of pole-changing reversible type and may be separately regulated to enable the energy input to the material to be adjusted.
Patent GB-1313757-A (GB)
Title: Ion source
IPC: H01J27/02
Filed: 1969-05-27
Abstract: 1313757 Ion sources EDWARDS HIGH VACUUM INTERNATIONAL Ltd 27 May 1970 [27 May 1969] 26830/69 Heading H1D An ion source comprises a target 12 to which an r.f. voltage, e.g. 1 kV at 13À6 MHz, is applied, a source of sputtering ions, an electromagnetic field produced by electromagnet 4 to pinch the sputtering ions and ionized particles from the target, and an e.s. lens 22 aligned with an aperture 20 in the housing 2 to extract the ions. The source of sputtering ions may be a plasma produced by an r.f. e.n. field (Fig. 2, not shown) or by ionization of the gas residual in the housing 2 by a heated filament 4 at a high negative potential with respect to the earthed housing. A desired atmosphere is maintained by adjustment of an inlet 18 for, e.g. argon and an outlet 16 to a vacuum line. Ions of a particular element are produced by forming the element as a component of the target 12 which is poorly conducting, or if the target is an electrical conductor the electrode 10 is capacitatively coupled to the r.f. source 14. Because of the high electron mobility a negative electron sheath is formed near the target during the positive cycle of current 14 which attracts positive sputtering ions which are then accelerated to the target on reversal of the target polarity. In a further embodiment a floating r.f. supply is applied to two electrodes 10 having either a common target or separate targets when because of the relative ionic mobilities of electrons and ions the targets retain a surface negative charge for an appreciable part of the r.f. cycle. The target may be a few mm. thick for materials such as alumina and silica.
Patent GB-1321492-A (GB)
Title: Photographic camera
IPC: G03B7/04
Filed: 1971-06-30
Abstract: 1321492 Controlling exposure PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 30 June 1971 30680/71 Heading G2A In a camera, photo-electric exposure measurement through the picture taking lens may be achieved either using "open" or "working aperture", there being a separate actuating key 1, 6 for each position and a change-over switch 5 whereby either a resistor 24 variable with a diaphragm setting member 17 for open aperture measurement or a parallel substitute 27 for working aperture measurement is connected into a bridge measuring circuit. The latter consists of a battery 10, resistors 21, 22 in adjacent branches, a resistor 23 variable with exposure time in another branch, a galvanometer 11 connected across a diagonal and a further operating switch 4, 7. In a rest position Fig. 2 resistor 24 is connected into the bridge and after depression of Key 6 for open aperture measurement, resistors 23 and 24 are varied to achieve a zero galvanometer reading. For working aperture measurement Fig. 3 (not shown) Key 1 actuates switch 5 to bring resistor 27 into the circuit and to switch out resistor 24 and movement of Key 1 also moves diaphragm setting member 17 to close diaphragm blades 16 partially according to the setting of member 17, by abutment of a stop 14 on nose 18. A galvanometer balance is then achieved by adjustment of resistor 23. In an alternative embodiment Fig. 4 (not shown) in a rest position, resistor 27 is in the bridge circuit and switch 5 is actuable by a Key (36) for open aperture measurement. A return spring (38) urges switch 5 to the rest position.
Patent GB-1324247-A (GB)
Title: Devices for agricultural and like sprayers
IPC: B05B15/06
Filed: 1970-11-23
Abstract: 1324247 Spray producers SVENSKA AB MOTESKA 23 Nov 1970 55508/70 Heading B2F A device for agricultural and like sprayers consists of an array of nozzles 3 supported in a U-shaped boom I and forming coupling members for sections of pressure conduit 2 extending between the nozzles 3, O-rings 21 located on coupling sockets 10 providing a seal for the sections of pressure conduit 2 and each nozzle 3 being supported by means of a bolt 16, the head of which is fitted in a T- shaped recess 13 in the main body 9 of the nozzle 3, the bolt passing through an aperture 17 in the web 6 of the boom 1 and being secured by a nut 18. As an alternative to the arrangement shown the sections of pressure conduit 2 may be located inside the coupling sockets with O-rings sealing against the outside of the conduit sections. The liquid to be sprayed is supplied from a supply tank (not shown) by way of a hose 22 fitted over peripheral grooves 23 on a coupling section as shown, an alternative to this being an angularly bent socket provided with a screwthread connection. Each nozzle 3 includes a nozzle tip 28 secured by a nut 29. In an alternative embodiment the U-shaped boom supports two lengths of alternating conduit and nozzle section mounted side by side. Both the nozzles and conduits may be of plastics material. A screen and drip pan may be provided with each nozzle.
Patent GB-1326364-A (GB)
Title: Advertising unit
IPC: G09F13/00
Filed: 1969-11-13
Abstract: 1326364 Illuminated signs METALLINE ENAMELLING CO Ltd 11 Nov 1970 [13 Nov 1969] 55514/69 Heading G5C An advertising unit comprises a panel 11 secured to a wall 12 which divides the passenger compartment 13 of a taxi from the driver's compartment 14. The panel 11 has at least one translucent screen 18 carrying advertising material. A fluorescent tube 19 is connected in series with two switches (not shown), one in each compartment, so that the unit may be switched on and off from either compartment. The panel body 16 may be made from glass fibre, and the screen 18 held in position by a moulded rubber strip 20.
Patent GB-1331511-A (GB)
Title: Apparatus for controlling proportions of fluids  in a mixture
IPC: G05D11/13
Filed: 1970-01-24
Abstract: 1331511 Controlling blending electrically SERCK INDUSTRIES Ltd 12 Jan 1971 [24 Jan 1970] 3552/70 Heading G1N An arrangement for blending two fluids comprises a detector 10 responsive to the rate of flow of a first fluid down a tube 12 associated with a first transducer 11 providing a signal to control a pump 15 introducing a second fluid, the detector also being associated with a second transducer 13 whose output, together with the output from a transducer 16 measuring the rate of flow of the second fluid, is fed to a comparator 17 which actuates an indicating device 18. This may provide an alarm and/or a correcting control signal when the ratio of the flow rates differs from a preset value by more than a predetermined amount. The outputs of the transducers may be adjustable, and optionally, such adjustment may be made within the comparator 17. The detector 10 may be a Venturi meter, an orifice plate or a turbine.
Patent GB-1340513-A (GB)
Title: Radiation dosemeters
IPC: G01T1/11
Filed: 1971-09-16
Abstract: 1340513 Uses of luminescence UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 Sept 1971 [6 Nov 1970] 52980/70 Heading C4S A radiation dosemeter comprises thermoluminescent powder mounted on both faces 2, 3 of a lamellar base of material (e.g. two graphite discs, a, b) which can be heated by radiofrequency heating so as to cause the thermoluminescent material to emit stored energy or luminescence. The base is preferably of graphite being close to tissue equivalence, and the powder of lithium borate activated by Mn or LiF. Other base materials may be Al base alloys, while for temperature reasons, synthetic plastics rendered conducting by the inclusion of graphite are unlikely to be suitable. The powder may be held by non-luminous silicone resin able to withstand 350‹ C. Polytetrafluoroethylene which is tissue equivalent may surround the base. The outer container may be of TUFNOL (R.T.M.) with radiation and light transparent windows 8, 9 of fluorinated ethylene propylene film. If the base is inserted in an electrically insulating holder, e.g. synthetic plastic, it need not be removed before heating and nitrogen may be circulated through any air space in the holder during heating and read-out. The powder on one side of the dosemeter may be exposed to both # and γ radiation while powder on the side is shielded from the # radiation alone by the base, # and γ doses being measured concurrently by detectors on opposite sides. Read-out apparatus may comprise two separated single coils of wires with the dosemeter between a photomultiplier tube being outside the coils and at right angles to their plane. In the Fig., discs la, 1b are in P.T.F.E. surrounds 4 in plastics piece 5 with side pieces 6, 7 forming the holder. Discs la, 1b may be replaced by a single disc. The dosemeter is intended to be worn on a worker's clothing with one side exposed and the other shielded by the clothing, the two sides being # plus γ and γ radiation responsive alone.
Patent GB-1345801-A (GB)
Title: Coupling for transmitting rotary movement
Inventor: ORAIN M
IPC: F16D3/84
Filed: 1971-10-28
Abstract: 1345801 Flexible shaft couplings GLAENZER SPICER 28 Oct 1971 [10 Nov 1970] 50165/71 Heading F2U  Two shafts 6, 7 are connected for torque transmission by a multipleat bellows 5, each shaft having an extension connected to the other extension by a ball-and-socket joint A, the extensions mounting a support 19 for the middle pleat 22 of the bellows to assist the centre-line of the bellows curving to a circular arc to which the centre-lines of the shafts 6, 7 are tangential. The ball of the joint A may be axially slidable on its extension, in which case collars 20 are fixed to the extensions. Two or more further supports 25, 26 may be included.
Patent GB-1347558-A (GB)
Title: Method of treating plants with finely-divided ferruginous material
IPC: C05D9/02
Filed: 1971-09-22
Abstract: 1347558 Treating soil with ferruginous material MARTIN MARIETTA CORP 22 Sept 1971 44230/71 Heading C1B A process for treating soil to prevent iron deficiency and iron chlorosis in plants comprises adding to said soil a finely-divided material obtained from cast iron chips by heating to a temperature of 700‹ to 1200‹ F. and then quenching in water. The ferruginous material obtained contains elemental Fe, Fe 2 O 3 , Fe 3 O 4  and minor amounts of Ca, Mg, S, Si, Mn, Al, Cr, Cu, Ni, Zn, Mo, Ti, Sn, Na, K, B, Co and V nutrients, and preferably is of a size passing No. 100 U.S. Screen. The cast iron chips may be the residue of cast iron processing operations or the by-product of machining operations. The formulations for treating the soil may also contain dispersing agent, iron chelating agent, dye and perfume.
Patent GB-1352679-A (GB)
Title: Box closure
IPC: B65D43/16
Filed: 1970-07-30
Abstract: 1352679 Boxes LIN PAC PLASTICS Ltd 19 July 1971 [30 July 1970] 36940/70 Heading B8P A box comprising a base 1 and a lid 4 is held closed by means of a flap 6 on the lid which is folded over around a flange 2 of the base and rests on a ledge 3 formed beneath the flange 2. The flap 6 extends from a flange 5 on the lid and has hinge lines 7, 8, 9 enabling a tab port 10 of reduced width to be inserted in the slot above the ledge 3. The box is opened by applying pressure to the base 1 beneath the recess 3. In modifications, two or more tabs 10 of reduced width may be formed on the flap 6 and two or more ledges 3 in the base 1; the cut-out above the ledge 3 may be replaced by a slot beneath the flange 2; or the ledge 3 may be formed by a second flange beneath the flange 2. The lid 4 may be hinged to the base 1, as shown, or may be separate, in which case two closure members are provided on opposite sides.