baber/WOPTO huggingface dataset:
Patent GB-1284709-A (GB)
Title: Gas turbine engines
Inventor: HAWKINS CYRIL MEAD
IPC: F16D1/06
Filed: 1971-04-19
Abstract: 1284709 Coupling turbine rotors GENERAL MOTORS CORP 19 April 1971 [14 May 1970] 21586/71 Heading F2U [Also in Division F1] The invention relates to a gas turbine engine and to means for connecting the turbine and compressor shafts together. The engine shown comprises a compressor shaft 10 and a turbine shaft 11, both of the shafts being hollow and the turbine shaft being received within the compressor shaft, the shafts being interconnected by a spline connection 21, 22. The turbine shaft is internally threaded at 26 and the compressor shaft is internally threaded at 23, and a coupling member 30 which has external screw-threads 31, 32 is engaged within the shafts with the threads 23, 31 in engagement and the threads 26, 32 in engagement. The coupling member 30 has spaced internal flanges 33, 36 the flange 33 being formed with narrow grooves 35 and wide grooves 34 and the other flange being formed with splines 36. The lock coupling 40 is formed with external sets of splines 41, 44, the splines 41 being adapted to engage the internal splines 36 in the coupling member 30 and the splines 44 being adapted to engage internal splines 25 formed on an inwardly directed flange 24 on the compressor shaft 10. A helical spring 42 is arranged to hold the parts in engagement, the spring bearing at one end against flange 43 of the lock coupling and at the other end against a T-section ring which is located by means of a split-ring 38 engaged in a groove in the coupling member 30. The parts are assembled by means of a tubular wrench member 50 formed with lugs 51, 52 which pass through the narrow recesses 35, 46. In Fig. 2 the compressor and turbine shafts 10, 11 are in splined engagement at 36, 41, and the wrench 50 is in position with the lugs 52 in engagement with the recesses 34 in flange 33 of coupling member 30. Upon rotation of the wrench the screw-threads 32 engage threads 26 and threads 31 engage threads 23, the axial movement of the coupling member 30 acting to compress the spring 42, Fig. 3 (not shown). Upon axial removal of the wrench, the lock coupling 40 is caused to move to the right under action of the spring 42 whereby the splines 41, 36 move back into full engagement and the splines 44 on the lock coupling 40 move to the right to engage the splines 25 on the internal flange 24 of the compressor shaft 10.
Patent GB-1306999-A (GB)
Title: Headsets
IPC: H04M1/05
Filed: 1970-05-05
Abstract: 1306999 Tube couplings PACIFIC PLANTRONICS Inc 5 May 1970 [3 July 1969] 21601/70 Heading F2G [Also in Division H4] A coupling for coupling the smaller diameter tube of a rigid telescopic voice tube to a headset (see Division H4) comprises a movable ballshaped member 23 held within a ferrule 27 detachably secured to the headset housing 14 by a bayonet type fitting co-operating with pins 28 carried by the housing.
Patent GB-499415-A (GB)
Title: Improvements in the manufacture and production of halogenated phthalocyanines
IPC: C09B47/10
Filed: 1937-08-06
Abstract: Halogenated phthalocyanines containing more than 12 atoms of halogen in the molecule are manufactured by heating phthalocyanines free from halogen with a halogen or other halogenating agent in the presence of halogenated benzenes and of a halogen transferrer under atmospheric pressure.  The products may be used as green to yellow-green pigments.  In examples: (1) chlorine is passed into a heated mixture of metal-free phthalocyanine, antimony pentachloride, sulphurous chloride and commercial trichlorobenzene; (2) chlorine is passed into a heated suspension of copper phthalocyanine and antimony trisulphide in a mixture of tri- and tetrachlorobenzene (obtained by chlorinating commercial trichlorobenzene); nickel phthalocyanine may be similarly treated.  Other reaction materials specified are: phthalocyanines: aluminium, chromium, zinc and tin phthalocyanines, and substituted phthalocyanines, e.g. the tetraphenyl compound; halogenating agents: bromine, phosgene, phosphorus pentachloride and oxychloride, thionyl chloride and sulphuryl chloride; diluents: mono- and dichlorobenzene or mixtures thereof (which become converted into tri- or tetrahalogenbenzenes during the halogenation); halogen transferrers: the halides and sulphides of aluminium, iron and antimony, or mixtures thereof with sulphur or sulphurous chloride.
Patent GB-1503685-A (GB)
Title: Platelet count correction circuit
IPC: G06M11/00
Filed: 1975-05-21
Abstract: 1503685 Particle analyzers J T BAKER CHEMICAL CO 21 May 1975 [10 July 1974] 21790/75 Heading G1N In an aperture type particle counting system including a circuit for automatically correcting the measured count for particle coincidence in the aperture, the corrected measured is further corrected for hematocrit value. The aperture system and coincidence correction circuit are similar to that described in Specification 1468332 Figs. 1 and 2 (not shown) and the corrected count is then fed to a decimal rate counter 32 having a plurality of outputs each of which provides a signal representative of a selected percentage of the count. The signals are converted into corresponding output pulses by multi-vibrators 34a to 34h which pulses are gated by NAND gates 36a to 36h to output NAND gate 42. The enabling inputs to the NAND gates are connected to a respective output of a read only memory 38 in which is stored data representing correction factors for a range of hematocrit values, the correction factor being equal to 1-HCT/75 and applied to the memory from a binary coded switch 40. Thus for a particular hematocrit value the read only memory 38 enables those gates 36 corresponding to the percentage outputs of counter 32 which when contained in output gate 42 provide the percentage value intended to yield the corrected output count.
Patent GB-442077-A (GB)
Title: Improvements in or relating to reaping machines
IPC: A01D65/04
Filed: 1934-07-25
Abstract: 442,077. Reaping-machines. MOLLER, G., 22, Elmshornerstrasse, Pinneberg, Holstein, Germany. July 25, 1934, No. 21802. [Class 6 (iii)] To lift the crop in front of the cutting mechanism of a reaping-machine, lifting bars d are carried by pivots on a rotating wheel c mounted on an outwardly and upwardly inclined shaft b, the bars d being controlled by arms g fitted with rollers h engaging in an adjustable cam track i. The shape of the cam track is such that the points of the bars travel along low-lying a path substantially parallel to the ground as they are thrust into the crop, the bar then rising to lift the ears over the cutting mechanism. At the rear part of their movement the bars are withdrawn from the crop and swung across the wheel c into a position preparatory to insertion into the crop, this swinging movement being assisted by engagement with a stop p.
Patent GB-186492-A (GB)
Title: Improved insulating material against loss or gain of heat
IPC: C04B41/52
Filed: 1921-08-17
Abstract: 186,492. Arquint, H. Aug. 17, 1921. Non-conducting coverings for heat and sound. - Carbonizable and incinerable organic substances, such as wood-wool, peat, straw, hay, &c. are laid loosely, plaited, in ropes or in any other form on the surface to be insulated, covered with a coating of clay, mortar, or the like, and then carbonized or incinerated by any convenient method, for example, by an embedded electric resistance, the heat developed converting the coating into the dry and solid state. The organic insulating mass may also be carbonized by heating the coating to red heat by a soldering-lamp, impregnating the mass, prior to coating it, with sulphurous or other acid.
Patent GB-888673-A (GB)
Title: Improvements in or relating to the stabilization of polyolefins
IPC: C08K5/5398
Filed: 1960-06-22
Abstract: Polymers of olefins are stabilized with a compound (RS)3P and optionally an additional stabilizer (RO)3P wherein each R is a hydrocarbon radical having 6 to 20 carbon atoms.  Of the many specified stabilizers those preferred are trilauryl, triphenyl and tribenzyl trithiophosphites, and triphenyl and phenyl didecyl phosphites.  The polymers may be those of ethylene, propylene, butene, isobutylene, hexene, 4-methyl pentene-1 and mixtures thereof. Auxiliary stabilizers also may be present and many metal soaps, epoxy resins and compounds, and polycarboxylic acids are listed.  Acetone is exemplified as a solvent for use in forming the mixtures.
Patent GB-820937-A (GB)
Title: Improvements in or relating to ultrasonic delay lines
Inventor: BROCKELSBY CHARLES FOUNTAIN
IPC: H03H9/125
Filed: 1955-07-29
Abstract: An electro-acoustic transducer of e.g. quartz or barium titanate, is attached to a delay line of e.g. glass or metal, by coating one or both parts with metal using the ultrasonic tinning technique and thereafter soldering the parts together with the application of heat and pressure.  The part or parts may be coated by immersion in an ultrasonic tinning bath.
Patent GB-1157857-A (GB)
Title: Improvements in or relating to an Apparatus in combination with a Continuous Casting Machine for Controlling the Operations of the Machine
IPC: B22D11/08
Filed: 1967-05-12
Abstract: 1,157,857. Continuous casting. GOSUDARSTVENY SOJUZNY INSTITUT PROJEKTIROVANYA METALLOURGITCHESKIKH ZAVODOV. 12 May, 1967 [12 May, 1966; 11 Aug., 1966], No. 22125/67. Heading B3F. In a continuous casting machine apparatus is provided for aligning a starter bar 5 with the mould 1 and/or for disengaging the starter bar from the cast ingot 6 and/or for aligning the cast ingot with the mould, and includes control means operable by apertures 15, 16 in the starter bar, the apertures permitting signals from a radiating source 13 to enter a receiver 14 which are subsequently transmitted to respective control units 17, 18 and 19 to effect one or more of the aligning operations or the releasing operation. The aperture 16 is used when the starter bar is introduced into the machine prior to the start of a casting operation, signals passing through the aperture 16 being passed to the control unit 18 to effect actuation of the aligning device 7. The aperture 15 permits the actuation of the piston and cylinder unit 9 which disengages the starter bar from the cast ingot by the displacement of the roller 12. The aligning device 8 is similarly controlled to effect the alignment of the ingot with the mould.
Patent GB-321170-A (GB)
Title: An improved device for use in the production of traffic signs in road surfaces
IPC: E01F9/06
Filed: 1928-07-31
Abstract: 321,170. Fuller, R. July 31, 1928. Metal blocks for road surface markings. - A hollow metal block for embedding in a road surface to mark lines or signs for traffic guidance is in the form of a truncated pyramidal box b with a convex upper face a and a flanged base c tapering to a thin free edge. One or more strengthening ribs d are provided beneath the top of the box. Specifications 272,989 and 276,796 are referred to.
Patent GB-853078-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: RUGGLES PERCY CHARLES
IPC: H01J31/36
Filed: 1958-07-10
Abstract: 853,078. Cathode-ray tubes. ENGLISH ELECTRIC VALVE CO. Ltd. March 25, 1959 [July 10, 1958], No. 22185/58. Class 39(1). Brillouin focusing is applied to the electron beam of a scanning cathode-ray tube. In the vidicon television camera tube shown, Fig. 1, the magnetic shield 7 has an apertured portion within the envelope and an annular portion 7a outside the envelope. The shield 7 terminates adjacent the end of a focusing coil system 8. In modifications the shield may extend through the envelope or comprise three parts 7b, 7c, 7d, as shown in Fig. 3.
Patent GB-924804-A (GB)
Title: Membrane tanks
Inventor: SCHLUMBERGER ETIENNE MAURICE
IPC: F17C3/02
Filed: 1961-06-20
Abstract: 924,804. Storing liquefied gas. CONCH INTERNATIONAL METHANE Ltd. June 20, 1961, No. 22194/61. Class 8(2). A cylindrical or prismatic tank for liquefied gas, e.g. natural gas, nitrogen or helium, comprises a load-bearing floor and a loadbearing wall or walls, respectively, formed of thermal insulating material 1, the floor and wall or walls being covered with dimpled, thin metal sheets 3 having plain edges 4 which are secured, e.g. by welding or screwing, to metal members 2, the latter being spaced from each other and fixed, e.g. by screws or nails, to the material 1 in the corner between the wall and the floor or the corners between the walls and between the latter and the floor; the edges 4 of the metal sheets are slotted at a series of points 5 corresponding to the spaces between the members 2, and along the or each corner there is a gutter-like strip of metal 6 sealed, e.g. by welding, to the adjacent edges 4. The thermal insulating material 1 may be balsa wood, preferably faced with plywood, or quippo, cork, foamed plastics, glass, asbestos, jute fibres, mineral wool or cellular gypsum. The metal of the sheets 3 is preferably stainless steel or an aluminium alloy. The. members 2 may be fixed to the material 1 by screws passing through slotted holes in the members 2 to allow for expansion and contraction. The strips of metal 6 are preferably transversly corrugated at 7 and in the case of a prismatic tank each corner between two of the walls and the floor is completed by a sheet metal member sealed, e.g. by welding, to the adjacent ends of the associated three gutter-like strips 6 to make a fluid tight corner, the transverse corrugations 7 in the strips 6 may be extended into the dimpled sheets 3, after the strips have been fixed in position, by a forming-in-place process such as vacuum forming while heating. Spaces between the dimpled sheets 3 and the insulating material 1 may be filled with a resilient filler. The metal sheets 1 may form a barrier round another vessel for the liquefied gas, to prevent escape of the gas in case of rupture of that vessel. Specifications 919,587, 924,801, 924,802 and 924,803 are referred to.
Patent GB-1441053-A (GB)
Title: Process and apparatus for injection moulding an article having sandwich construction
IPC: B29C45/16
Filed: 1974-05-17
Abstract: 1441053 Injection moulding ASAHI-DOW Ltd 17 May 1974 [28 May 1973 29 May 1973 9 June 1973 3 Dec 1973 29 Jun 1974 15 April 1974] 22203/74 Heading B5A In a "sandwich moulding" process the front portion 25 (Fig. 1) of an injection cylinder 1 is charged with a shell-forming resin and the rear portion 18 with a core-forming resin which contacts the first resin in a central area below, and then both the resins are injected in a single injection stroke through a nozzle 2 into a mould cavity 5 with the second resin 28 enveloped by the first resin 26. One or both of the resins may be foamable. In the example shown in Fig. 1 the shell-forming resin is supplied by a screw plasticizer 12 past a check valve 15 to an annular space 21 surrounding an inner cylinder 17. If the core resin is foamable a male mould part 6 is moved to the dotted line position to allow the core to foam. Alternatively the cavity 6 may be filled with a pressurized gas (through a passage 10) the gas being removed after injection to permit foaming. Fig. 3 shows a modification in which a mandrel 30 having a central bore 36 is slidable within the injection cylinder 1. The mandrel has a rearward enlarged portion 31 and a forward reduced portion 32 defining an annular passage 33 for the shell material. The mandrel 30 can be held in its forwardmost position, in which flow of shell material is cut-off, by means of a piston-operated rod 43 engaging a shoulder portion 44 of the mandrel. In Fig. 4 (not shown) the mandrel has a check valve (51) in its central bore and an enlarged portion (31A) which may be engaged by an abutting shoulder (50) on the wall of the cylinder bore. Fig. 5 shows a slidable mandrel 40 having an internal check valve 64, and another valve 66 in its forward end. Material flowing through the bore 65 of the mandrel forces the valve 66 to closed positions until the valve reopens when it contacts the nozzle end of the injection cylinder.
Patent GB-221944-A (GB)
Title: Improvements in and relating to apparatus for sizing and drying artificial silk and the like
IPC: F26B13/00
Filed: 1923-09-04
Abstract: 221,944. Dean, J. Sept. 4, 1923. Drying materials in lengths.-Artificial silk &c. is dried after sizing by passage over or in-contact with adjustable steam-chests C having between them adjustable glass rods G for varying the position of the silk relatively to the chests. The chests are formed with flanges F which are supported upon shoulders formed on screwed bolts carried by the frame.
Patent GB-460907-A (GB)
Title: Improvements in or relating to apparatus which is heated in use particularly electron tubes
IPC: H01J9/42
Filed: 1935-08-06
Abstract: 460,907. Heat indicators. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Aug. 6, 1935, Nos. 22235, 22236, and 22237. Convention dates, Aug. 6, 1934, Oct. 31, 1934, and Feb. 19, 1935. Drawings to Specification. [Class 97 (iii)] A device evolving heat when in use has associated with it a " used life " indicator comprising either a dyestuff which decomposes progressively under the action of heat and progressively alters its visible appearance, or a chemical material which alters its condition progressively in a non-visible manner and to which is added an indicating material undergoing a visible change. The indicator may be such that it does not change until after a minimum heating period. A strip of paper coated or impregnated with a dyestuff such as fuchsin may be stuck upon the envelope of a thermionic valve or a coated resilient strip of the material known under the Registered Trade Mark " Cellon " may be mounted inside the re-entrant tube or the dyestuff may be mixed with metal sprayed upon the envelope. Standard colour comparison members may be placed nearby. In a modification, a pH indicator may be mixed with a salt such as barium acetate comprising a readily volatile acid and a difficultly volatile base or a salt such as secondary ammonium phosphate comprising a readily volatile base and a difficultly volatile acid. Or a material such as potassium chlorochromate setting free a bleaching reagent may be used with a suitable dyestuff. The rate of reaction may be decreased by using a binder such as gum arabic or gelatine. The invention is applicable to electric irons, electric heaters, motors, steam apparatus or lamps. According to the Specification as open to inspection under Sect. 91, a valve may be coated with a soap which melts and runs down the envelope, or a capsule in the envelope may contain metallic zinc which on heating forms a precipitate on the envelope where its increasing thickness may be measured by a light beam and photo-cell. The invention may be applied to the evaluation of the variation of the elastic properties of rubber, artificial resins or phenol derivatives under heat. This subjectrr.atter does not appear in the Specification as accepted.
Patent GB-299138-A (GB)
Title: Apparatus for the mechanical solution of trigonometrical problems
IPC: G01C21/20
Filed: 1927-08-24
Abstract: 299,138. Addison, H., and Luard, W. B. Aug. 24, 1927. Addition to 264,755. Plane-trigonometry calculators. - The instrument of the parent Specification is modified to enable it to be used with observations made on a moving object such as a ship. In the form shown in the Figure, and in addition to the two air course arms d, q and cursors e, r and the ground course arm d<2> and cursor s, there is a " ship " course arm y with cursor z, this arm being pivoted at the centre of the base a. Connected with the cursor z is a degree scale a<1> coaxial with a " wind " arm m having a cursor l linked by a pantograph t and a telescopic link or blade g with the cursors e, r, s. In the use of the instrument the arm d and cursor z are set in accordance with the ship's course and speed and then clamped. The arms d, d<2> and their cursors are next positioned to represent the speed vectors of the aircraft on two different courses. With the central pivot of the pantograph engaged with the ground speed cursor s the wind arm and cursor l are now manipulated until the link g makes the observed drift angle (relative to ship) on the graduated sector e', the wind vector thus being obtained. The wind arm and cursor may now be clamped and the scale a<1> bodily shifted until eccentric with the base, the pantograph meanwhile being free of the cursor s. Arm d<2> and cursor s are then moved until the pantograph may again be engaged with the cursor, whereupon the arm and cursor give the true ground speed. In place of a pin and slot connection at s<1> an optical aligning means may be provided. Specification 273,198 also is referred to.
Patent GB-1082286-A (GB)
Title: Improved method of shrink fitting and apparatus therefor
IPC: C21D1/42
Filed: 1965-05-26
Abstract: 1,082,286. Jointing. GENERAL DYNAMICS CORPORATION. May 26, 1965 [June 11, 1964], No. 22345/65. Headings B3Q and B3V. Two members are joined together by a combination of magnetic forming and shrink fitting in which the temperature of at least one member is varied to an abnormal temperature, a time varying magnetic field is generated which interacts with an induced current in either of the members causing that member to move into contact with the other member, and the members are returned to their normal temperature. In a first embodiment, a rod 21 is joined to a tube 19 by heating the tube 19, cooling the rod 21, placing the rod and tube in a coil 11 through which is passed a high amperage current pulse from a capacitor bank 31 through a suitable switch 37, e.g. a thyratron or ignitron and returning the rod and tube to their normal temperature. If the tube 19 is a bad conductor a conductive sleeve 22 may be used as a driver to compress the tube 19, the sleeve 22 subsequently being removed, e.g. by chemical dissolution. In a second embodiment the coil is also provided with a source of high frequency alternating current which is used to heat the tube before it is magnetically formed. In a third embodiment two concentric tubes are joined using a coil which is placed inside the innermost tube.