baber/WOPTO huggingface dataset:
Patent GB-1450591-A (GB)
Title: Gas laser
IPC: H01S3/0953
Filed: 1973-10-22
Abstract: 1450591 Lasers MESSERSCHMITT-BOLKOW-BLOHM GmbH 22 Oct 1973 [9 Nov 1972] 49124/73 Heading H1C In a dynamic gas laser using a mixture of N 2 , CO 2  and H 2 O, the gas is heated in a combustion chamber to a temperature of 1000 to 3000K and is raised in pressure to between 10 to 1000 atmospheres before passing from the chamber to a resonator. In Fig. 1 the laser gas is ignited and heated in a combustion chamber 13 and passes through a rupturable diaphragm 16 and nozzles 12 in to a resonator 11 when sufficient pressure is built up in a pressure chamber 14, the wall between the pressure and combustion chambers being formedby a flexible diaphragm. Pressure in the chamber 14 is determined by a gas, which may be air, supplied from a storage container through a valve 17 controlled by a regulator 20. The rupturable diaphragm may be replaced by a controlled valve. In a modification, Fig. 2, the pressure chamber is replaced by a piston 19. In a further arrangement, Fig. 3, CO 2  and N 2  from a tank 22 are pumped into the combustion chamber 13 at the time high pressure air passes from a pressure chamber 14 into the combustion chamber through nozzles 24. Combustion of the combined gases follows. In Fig. 4 the laser gas passes into a combination chamber 14 which includes a solid combustible apertured compound 30 ignited by an electrode 32. The compound may be C 2 N 2  or C 6 N 4  with N 2 O, NO 2  or N 2 O 2  used as an oxidising agent.
Patent GB-1352626-A (GB)
Title: Apparatus for supplying large volumes of air
IPC: F24F11/04
Filed: 1971-10-25
Abstract: 1352626 Ventilators SVENSKA FLAKTFABRIKEN AB 25 Oct 1971 [16 Nov 1970] 49479/71 Heading F4V Apparatus for supplying large volumes of air into a room from an air passageway 4 in a wall 2, comprises a nozzle in the form of a pipe which has a perforated portion 6 and a non-perforated portion. A piston 7 is disposed in the perforated portion 6 and is adjustable longitudinally of the pipe in order to adjust the volume of air flowing through the second portion. The second portion of the pipe terminates in a conical end portion 10, which may be rotatable about the longitudinal axis of the pipe and/or pivoted about an axle 11 perpendicular to the longitudinal axis, and may also be surrounded by a pipe socket 9 which may be integral with the second portion.
Patent GB-1414123-A (GB)
Title: Rotary positive-displacement fluid pumps
IPC: F04C2/356
Filed: 1971-10-25
Abstract: 1414123 Rotary positive displacement fluid machines TUDOR ACCESSORIES Ltd and K J WILCOX 25 Oct 1972 [25 Oct 1971] 49533/71 Heading F1F A pump that may be incorporated in a windscreen-washing system comprises a loaded sliding- vane 21 co-operating with an eccentric rotor 19, which has an axially extending slot 31 to render that part abutting the inner circumferential surface of the casing 10 flexible. The vane may be loaded by a spring 21 and fluid pressure transmitted through a passage 24 from an outlet passage 28 for the working fluid, or by the spring per se. The casing may be furnished with mounting lugs 11 and portions 29, 30 for connection of flexible tubing to a working-fluid inlet passage 27 and the passage 28, and may be made of a plastics material. The rotor may be driven by an electric motor (not shown).
Patent GB-1497696-A (GB)
Title: Apparatus for winding saddle-shaped deflection coils
IPC: H01F41/06
Filed: 1975-12-03
Abstract: 1497696 Winding coils PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Dec 1975 [6 Dec 1974] 49631/75 Heading B3A  An apparatus for winding a saddle-shaped deflection coil for a picture display tube, in which the turns of the coil are distributed over a  number of electrically series-connected sections which are separated by spaces in the coil over a part of the length of the coil, includes a coil shaping winding mandrel movable through positions I, II, III, with a rotatable coil winding arm 34 at position I, wherein mandril part 6 carries a number of pins 16 insertable through apertures 17 into the winding space (10) (Fig. 3, not shown). Each pin 16 is connected to a piston 15 in a cylinder 14, spaces 20 in cylinders 14 communicating through tubes 21 to separate ducts 24 in block 25, spaces 22 in cylinders 14 communicating through ducts 23 and duct 26 with a common duct 27 in block 25, all ducts 24, 27 opening out of surface 28 of block 25. In winding position I, opposite block 25 across a gap equal to the thickness of a wire and through which the wire passes as the coil is wound is a block 29 containing separate ducts 24<SP>1</SP> opposite ducts 24 in block 25 and through which compressed air is blown, from pipes 31, controller 32 and pipe 33, the compressed air passing through ducts 24<SP>1</SP> across the gap into ducts 24 to lower pins 16 in sequence into the winding space (10). At position II, the coil is baked and at position III block 25 comes opposite a block 35 having a duct 36, and compressed air is blown from controller 32 through tube 26<SP>1</SP> and duct 36 across the gap and into duct 27 to raise pins 16 so that the coil can be removed. Members 11 and 12 are wire guides.
Patent GB-1037724-A (GB)
Title: An improved apparatus for grinding drills
IPC: B24B3/26
Filed: 1964-12-07
Abstract: 1,037,724. Grinding drills. A. E. AHL- 8TROM. Dec. 7, 1964 [Dec. 6, 1963], No. 49634/64. Heading B3D. Apparatus for grinding a drill 2 held in a chuck 1 of a drilling machine comprises means 12 for clamping the apparatus on the drill, means 15, 17 for driving the grinding disc 19 from the rotating drill with the disc in contact with the operative end of the drill, the apparatus having a casing 6 adapted to be held, e.g. by hand, against rotation during the grinding operation, and means for changing the inclination of the grinding disc during its rotation to grind a clearance behind the cutting edge of the drill. The casing 6 rotatably houses a body 7 which has a spindle 8 at its lower end guided in a sleeve 9 and a hub 10 at its upper end rotatably supporting a sleeve 11 of the means 12 for clamping the apparatus on the drill; the body 7 can be rotated by the drill by means of a driving abutment 22 which is carried by the body and is engageable with the flutes of the drill. The body 7 also carries a bearing 14 for a shaft 15 frictionally engaged with a stationary ring 17 mounted on the casing to effect rotation of the shaft upon rotation of the body. The shaft 15 has a flexible portion 18 which carries the grinding disc 19 and an extension 21. The oxtension passes through an opening 35 in a gear 32, which is coaxial with the spindle 8 and secured to the body 7, and engages driving plates 36, 37, pass eyes 38 and arched walls 40, 41 on a second gear 30 which is rotatably mounted on the spindle 8. The gears 30, 32 have different numbers of teeth and engage a common gear 33, whereby upon rotation of the body 7, the gears 30, 32 rotate relative to each other and the extension 39 is moved into and out of contact with the end of the drill and is also inclined to grind a clearance behind the cutting edge of the drill. In operation, the apparatus is clamped on the drill which is then rotated, the casing 6 then being held by hand against rotation. The body 2 is locked to the drill by the abutment 22 and as the gear 30 rotates relative to the body, the extension 39 is guided by the end of a spring 43 along the wall 40 until it snaps radially inward along passage 42 to bring the grinding disc into engagement with the end of the drill, the disc being rotated by the friction drive 17. The continued rotation of gear 30 causes the plate 37 to swing the grinding disc counterclockwise to grind the clearance to the cutting edge until the spring lifts the extension from passage 38 to slide along wall 41 and move the grinding disc out of contact with the drill. A wall 29 on the gear 30 then rocks a bell-crank lever 25, 27 on the body 7 to cause the drill to be moved from engagement with the abutment and then lowered so that the abutment engages the other flute of the drill for the grinding of the other cutting edge of the drill. The apparatus may have two or more grinding discs, one for each cutting edge of the drill.
Patent GB-1348393-A (GB)
Title: Method of increasing the particle size of transition metal powders
IPC: C22C1/05
Filed: 1971-10-26
Abstract: 1348393 Tungsten carbide REDERI AB NORDSTJERNAN 26 Oct 1971 [28 Oct 1970 17 Nov 1970] 49657/71 Heading C1A [Also in Division C7] Tungsten carbide is prepared by mixing tungsten powder with carbon black and cobalt dichloride powder, and heating in a hydrogen atmosphere at 1600‹ C. to produce larger carbide particles than a cobalt-free mixture; the cobalt dichloride may alternatively be added as a solution in alcohol.
Patent GB-1151718-A (GB)
Title: Process for the production of Halogen-Containing Dioxene and/or alpha-Keto-Oxetane-Derivatives
IPC: C07D493/04
Filed: 1966-11-08
Abstract: 1,151,718. Halogen-containing dioxenes and α-keto oxetans. KALLE A.G. 8 Nov., 1966 [30 July, 1966], No. 50060/66. Heading C2C. Halogen-containing dioxene and α-keto oxotan derivatives of the formulµ respectively, wherein R 1  and R 2  are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, aryl, aralkyl, or heterocyclic radicals, or R 1  and R 2  together form a saturated or unsaturated, substituted or unsubstituted ring; and R 3 , R 4 , R 5  and R 6  are hydrogen or halogen atoms or substituted or unsubstituted alkyl, cycloalkyl, aryl, aralkyl or heterocyclic radicals, at least one of the groups R 3  to R 6  being halogen, and two of these groups optionally being joined to form a saturated or unsaturated, substituted or unsubstituted ring; are prepared by reacting dicarbonyl compounds, R 1 CO.COR 2 , with olefinic compounds, R 3 R 4 C: CR 5 R 6  under the influence of light which is not absorbed by the product. Compounds of the formula are produced as by-products.
Patent GB-1125387-A (GB)
Title: By-pass control for nuclear reactor plants
IPC: G21D3/08
Filed: 1965-12-01
Abstract: 1,125,387. Nuclear power plant. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 1 Dec., 1965 [3 Dec., 1964], No. 50973/65. Heading G6C. A by-pass control arrangement to prevent inadmissibly high fluctuations in steam throughput in steam power plant fed by nuclear reactors, particularly superheater reactors, comprises connecting the live steam line 10 and the condenser 14 by means of two by-pass lines 12, 13, the first by-pass line 12 being equipped with a quick-opening valve 4 and an auxiliary regulating valve 6, while the second by-pass line 13 can be opened or closed by a regulating valve 7. The arrangement is characterised in that (i) the quick-opening valve 4 is coupled through a release device 5 to a quick-acting cut-off valve 3 and opens simultaneously with the closing of the latter, (ii) independently of (i), the auxiliary regulating valve 6 which is coupled to a turbine regulating valve 1 is maintained in a position corresponding to the steam through-put depending on load, and (iii) on closing movement of the turbine regulating valve 1 independent of the out-off, the regulating valve 7 which is likewise coupled to the turbine regulating valve 1 opens by an equivalent amount and, after each opening movement, automatically closes again at an adjustable speed. The regulating valves 6, 7 are controlled directly by the turbine speed governor 2. So as not to cause any inadmissibly sharp rises in the steam through-put as a result of rapid opening movements of the turbine regulating valve 1, this may be equipped with a preliminary pressure limit regulator.
Patent GB-1514228-A (GB)
Title: Universal joint and method of manufacture
IPC: F16D3/02
Filed: 1975-06-27
Abstract: 1514228 Universal joints LITTON INDUSTRIES Inc 27 June 1975 [1 July 1974] 51042/77 Divided out of 1514227 Heading F2U [Also in Division B3] The subject-matter of this Specification is identical with that described in Specification 1,514,227 but the claims relate to the method of manufacture.
Patent GB-1441788-A (GB)
Title: Fittings for gathering and fixing curtains or drapes
IPC: A47H13/00
Filed: 1973-11-02
Abstract: 1441788 Suspending curtains GARDISETTE HOLDING AG 2 Nov 1973 [11 Nov 1972] 51064/73 Heading A4B A fitting, for suspending curtains formed by spaced strips 28 of threads 29 inter-connected by transverse threads 31, includes runner members 1 secured to the upper ends of respective strips 28 in a manner to effect a progressive shortening of the uppermost transverse threads 31 whereby the lower threads 31 hang in the form of a catenary between successive strips 28. The runner members may be secured to the curtain by adhesive or welding, but as shown the curtains are clamped to the runner members. The runner member 1 comprises two plates 4 connected by a thin web 5 and each plate has a thin wing 6 having a plurality of differing length notches 13. Each strip 28 is folded over a spacer shim 2 and the wings 6 are folded over the shims 2 such that the transverse threads 31 each engage a respective notch 13. Barbs 8 on the plates 4 engage holes 9 in the wings 6 to secure the folded over wings 6 to the plates 4. A clamp 3 is then snap fitted to the runner member 1, spaced hooks 14, 15 on the runner member 1 snap-engaging hooks 21, 22 on the clamp 3. Ends 24 of the clamp 3 have recesses 26 to receive the bend part 32 of the folded over wings 6.
Patent GB-1533998-A (GB)
Title: Method of impregnating and drying materials and installations for carrying out this method
IPC: B05C/
Filed: 1975-12-16
Abstract: 1533998 Vacuum impregnating and drying cardboard MECALIX 16 Dec 1975 [19 Dec 1974] 51511/75 Heading D1L Sheets or rolls of cardboard are strengthened, fire-proofed, coloured or made insect or bacteria resistant by impregnating the cardboard in a closed vessel which has firstly been evacuated, the cardboard following impregnation being subsequently dried by again evacuating the vessel with temp. control to remove impregnant solvent or suspension media, and the solvent being recovered. As shown in Fig. 1, the cardboard is sealed within heated vessel 11 which is then evacuated by vacuum pumps 32a or 42 prior to the introduction of heated resin impregnant contained in a solvent from either of heated storage tanks 16 or 17, via line 25. Following pressure impregnation the liq. solvent is returned to the tanks 16, 17 via line 25 using reversible pump 26. The vessel 11 is then evacuated by vacuum pump 32 and the solvent collected in condenser 33, subsequently being recycled via buffer tank 35 to tanks 16 or 17. Finally container 11 is re-pressurized with N, from 46 and the cover removed. The rate of evacuation following impregnation is temp. controlled by sensor 51 actuating pump 32. A system wherein 3 treatment vessels are used simultaneously is illustrated in Fig. 2 (not shown).
Patent GB-1157473-A (GB)
Title: Machine Tool for Cutting an Assembly of Coaxial Tubes into Parts, Particularly the Channels of a Pressure-Tube Nuclear Reactor.
Inventor: BONNET GEORGES
IPC: B23D21/04
Filed: 1966-11-18
Abstract: 1,157,473. Dividing. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 18 Nov., 1966 [23 Nov., 1965], No. 51719/66. Heading B3W. A tube-cutting machine of the type having at least three co-planar rotatable bevel-edged discs supported around and equidistantly from the axis of the tube, which is perpendicular to the plane containing the discs, means for displacing the discs towards and away from the axis and means for effecting relative rotation between the discs and the tube to be cut, is characterized in that there is a sleeve coaxial with and surrounding the tube, the sleeve being coupled to the discs for relative rotation therewith and having windows through which the discs project inwardly to engage the tube, the discs being carried on independently removable supports and there being a tube gripping vice having jaws which open and close in the manner of an iris diaphragm. A motor 1 drives a shaft 2a on which are secured a gear-wheel 5 and one part of an electromagnetic clutch 4, the other part of which is coupled to a gear-wheel 3, which is freely rotatable on the shaft 2a. The gear-wheels 3 and 5 mesh respectively with toothed plates 6 and 8. On the underside of plate 6 are four radially disposed guides in which slide cutter disc supports 10. Teeth on the underside of the supports engage a scroll formed in the upper side of the plate 8. The plate 6 is secured to and rotates with a sleeve 7 which receives the tube or tubes to be cut. A difference in the ratios of the gear drives to the plates 6 and 8 causes relative rotation between them so that the cutter discs advance radially inwards through windows cut in the walls of the sleeves. A stationary ring 16, Fig. 4, forms an extension of the sleeve 7 and a control disc 38 is mounted for free rotation thereon. Three levers 34 are mounted on pivot pins 35 fixed in a casing surrounding the cutter drive mechanism and each lever carries a pin 36 which enters an arcuate slot 37 in the control disc 38. A double-acting air cylinder 42 rotates the disc to close the jaws on to the tube to be cut. Limit switches control the inward and outward movement of the cutter discs.
Patent GB-1223502-A (GB)
Title: Improvements relating to batteries
IPC: H01M10/26
Filed: 1968-10-31
Abstract: 1,223,502. Aluminium battery. FURUKAWA DENCHI K.K. 31 Oct., 1968 [31 Oct., 1967; 17 June, 1968], No. 51754/68. Heading HlB. A battery having an aluminium or aluminium alloy anode has an alkaline electrolyte containing a plumbite having a general formula of M 2 Pb(OH) 4 , MPb(OH) 4  or M 2 [Pb(OH) 4 ] 3 , a plumbate of the general formula M 2 Pb(OH) 6 , MPb(OH) 6  or M 2 (Pb(OH) 6 ] 3  or a stannate of the general formula M 2 Sn(OH) 6 , MSn(OH) 6  or M 2 [Sn(OH) 6 ] 3 , where M is a metal e.g. Na, K, Li, Zn or Al, in such a quantity as to inhibit self-corrosion of the electrode and enhance the current efficiency of the battery. A maximum current efficiency is obtained using 0.005-0.01 M potassium plumbite or plumbate or 0À05-0À1  M sodium stannate. The battery can be of the type Al-oxygen, Al-air, Al-NiOOH, Al-MnO 2 , Al-AgO.
Patent GB-1447764-A (GB)
Title: Pinch-sealed electric lamps
IPC: H01K1/44
Filed: 1972-11-09
Abstract: 1447764 Attaching parts to lamp pinch seals THORN ELECTRICAL INDUSTRIES Ltd 8 Nov 1973 [9 Nov 1972] 51819/72 Heading C1M [Also in Division H1] Shaped sheet metal members 10, Fig. 2, are secured to the pinch seal 16 of an electric incandescent or discharge lamp by embedding parts thereof into the material of the pinch seal to appropriately locate the members 10 relative to the remainder of the lamp. Preferably the members 10 are in the form of plates having projections which are pressed into the pinch seal when the vitreous material thereof has been softened. The members 10 may be mounted in the movable jaws used for forming the pinch seal and embedded in the seal simultaneously as the pinch seal itself is formed. Lead-in wires 15 may be connected to respective members 10 which may be provided with integral lugs for supporting the lamp from the reflector of a sealed beam lamp, for example, and for providing the electrical connections thereto. As shown in the tungsten-halogen lamp of Fig. 7, the sheet metal members 44, 45 have jagged edged perforations 46 through which the softened pinch seal material is pressed to locate them, and the lamp is aligned with respect to associated optical apparatus by aperture 47 and notch 48 in the members. A metal base or cap (51), Fig. 8 (not shown), can be secured to a lamp without cement by welding it to intermediate metal members pressed into the pinch seal. According to the material of the lamp envelope (e.g. borosilicate or aluminosilicate hard glass, fused silica or soft glass) the metal members may be formed of nickel-chrome-iron alloys, stainless steels, copper bronzes, coppercoated alloys, iron-cobalt-nickel alloys, molybdenum or tungsten.
Patent GB-1324542-A (GB)
Title: Heat storage panels
IPC: F24D13/02
Filed: 1970-11-02
Abstract: 1324542 Heat storage panels THERMOBAUELEMENT AG 2 Nov 1970 [4 Nov 1969] 51941/70 Heading F4U A heat storage panel for use in floors, walls or ceilings of rooms comprises a shaped plate 4 having a uniform array of semicircular bulges formed thereon and a bottom cover-plate 5 which is welded to the plate 4 at the points of contact, a heat storage mass which gives off its heat of crystallization at a predetermined temperature filling the spaces formed between the plates. As shown, a separating foil 7 is located between the plates to allow two separate storage masses 8 and 9 to be used. Perforations may be disposed at the points of contact to allow nails to locate the panels in position. The or each storage mass preferably comprises a hydrate of an ionogenic salt which melts in its own water of crystallization.
Patent GB-1165437-A (GB)
Title: Tension Control for Web Winding Apparatus
IPC: B65H23/182
Filed: 1967-11-15
Abstract: 1,165,437. Automatic tension control for web winding apparatus. DOMINION ENG. WORKS Ltd. Nov.15, 1967 [Nov.18, 1966], No.52005/67. Heading G3R. The tension in a paper web 23 is automatically maintained at a desired value by the control system shown, in which tension variations are sensed by pressure transducer 37 whose output is compared with a reference signal 44 to obtain an error signal which is used to adjust the fluid servovalve 48 controlling the mechanical brake 22 of the unwinding reel 21. The web is fed over draw tables 25, 26 in the upstream one of which are located bleed orifices 36 of a pressurized air supply 35, the arrangement being such that tension variations in the web produce variations of the rate of air-flow from the orifices and hence variations of the pressure sensed by transducer 37. The latter member is of the differential transformer type wherein pressure variation causes movement in a core to provide a D.C. signal voltage for comparison with the reference voltage, Fig. 2 (not shown). The reference signal may be over-ridden by a manual control which is automatically disconnected at the limit of its travel to leave the automatic system in control. The transducer may be of the strain gauge type in conjunction with a deformable diaphragm.
Patent GB-1253371-A (GB)
Title: Improvements in or relating to variable resistance control devices and to resistance means for use therein
IPC: H01C10/38
Filed: 1968-11-04
Abstract: 1,253,371. Variable resistors. C.T.S. CORP. 4 Nov., 1968 [2 Nov., 1967], No. 52268/68. Heading H1S. A variable resistor has a plurality of discrete portions 53 of a film of resistance material held by a dielectric substrate with which co-operate wiping contact members 62, 63 (Fig. 3) carried by a slidable holder 58. The holder 58 is movable manually by a member 28. The contact members also have contacts wiping on collector members 49. The resistive film elements are "intrinsically equalized" and may be produced by spraying, rolling or otherwise applying a resistive film to a strip of dielectric material moving past work stations A to G (Fig. 7). The dielectric substrate strip may be flexible. After application, marginal portions may be removed by abrading at E. Two separate resistance elements may be formed by removing a central portion to form a slot at 54. Alternatively masking may be used and the resistance elements may be formed transversely across the strip. The contacts 62 may have projections which fit into grooves in carrier 58 and are pressed thereinto when the contacts are pressed on to the resistance element by a polychlorotrifluoroethylene or metal spring member 66. The resistance elements may have taps 44. Special arrangements to prevent wobbling of the contact carrier are also described and are claimed in Specification 1,253,372.