baber/WOPTO huggingface dataset:
Patent GB-750508-A (GB)
Title: Rotors for gas turbine installations and exhaust gas turboblower installations
IPC: F01D25/16
Filed: 1953-06-26
Abstract: 750,508. Gas turbine plant; centrifugal blowers. KLOCKNER - HUMBOLDTDEUTZ AKT.-GES. June 26, 1953 [June 27, 1952; June 27, 1952], No. 17830/53. Classes 110(1) and 110(3) A gas turbine rotor and a blower impeller are overhung at one end of a shaft, at least one of the shaft bearings being carried by a rigid support with the interposition of an element of small rigidity or substantial resilience, and stops being provided to limit the deformation of the element. A shaft 1 is journaled in bearings 5, 6 and carries a turbine rotor 3 and a 'hollow shaft 2, both attached to the shaft 1 by pins 20 and screws 21. The blower impeller 4 is carried by the hollow shaft 2. The bearings 5, 6 are housed in a tubular sleeve 7 which is rigidly supported at one end in a conical member 8 and is slotted longitudinally to provide a degree of resilience which alters the critical speed of the rotating parts. The vibrational deflection of the free-end of the sleeve 7 which occurs when the rotating parts pass through the critical speed is limited by a tubular extension 8a of the member 8. The points of contact between the sleeve 7 and extension 8a may be reduced by removal of material, and oil may be fed through' conduits to these points to provide damping. The smallness of the area, of contact at the pins 20 and screws 21 limits the flow of heat from the rotor 3 to the shaft 2 and impeller 4. Oil from a reservoir 14 passes through the shaft 1 to the bearings 5, 6 and also flows outwardly between the flanged end of the shaft 1 and the adjacent surface of the shaft 2 for cooling purposes. The reservoir 14 is kept full by a pump 15, excess oil being discharged into a sump 15a by way of an overflow 16. After the machine has stopped, the oil reservoir 14, which is above the level of the shaft 1, empties through the latter to prevent the bearings 5, 6 being damaged by heat conducted from the hot rotor 3. On starting, a reserve oil container 17 is emptied into the reservoir 14 to provide a supply of oil before the normal oil circulation comes into operation. The struts 9 which support the member 8 may be formed as guide blades. Heat-insulating members may be arranged between the shaft 2 and the rotor 3 and impeller 4. Specification 750,597 is referred to.
Patent GB-739571-A (GB)
Title: Improvements in or relating to the cooling of electrodes of an electric oven or furnace
IPC: H05B7/12
Filed: 1954-06-18
Abstract: 739,571. Electrode ovens and furnaces. MAURER SOC. ANON. ING., A. June 18, 1954 [Aug. 10, 1953], No. 17979/54. Class 39 (3). An electrode of an electric oven or furnace is cooled by a cooling medium which is sucked through a cooling circuit within the electrode. A pipe 5 has its open end below the surface 4 of water in an open reservoir 2 and is connected to an electrode cooling circuit 6 which is also connected to a pipe 7 open to atmosphere at 8, the arrangement constituting a siphon. In the event of a leak developing in the circuit 6, water does not flow into the oven 10, since pressure in the circuit 6 is lower than that in the oven which is at atmospheric pressure, If the leak is sufficiently large, the siphon action ceases and water of the ruptured water column flows out through an overflow outlet 3 and open end 8, water supply from a line 1 being cut off as a result of the rise in level of the water in the reservoir. In a modification, Fig. 2 (not shown), the cooled electrode is vertically disposed, and the provision of a riser tube enables the reservoir to be at any convenient distance from the oven. Pump and injector means are also specified to provide the suction.
Patent GB-246187-A (GB)
Title: Improvements in conveyors
IPC: B65G25/00
Filed: 1924-07-28
Abstract: 246,187. Stokes, R. O. July 28,1924. Ratchet and like step-by-step conveyers.- Material is moved along a trough 1 by a rake 3 which is suspended from a boss 5 on a rod 6 and from one arm of a bell-crank lever 12. One end of the rod 6 is pivotally connected to a crank 8 and the other end is pivoted to an arm 9 which is pivoted at 10 to the framework of the conveyer. A link 13 connects the lever 12 with a right-angle extension 14 of the rod 6. In a modification the arm 9 is replaced by a fixed curved surface on which moves a roller mounted at the end of the rod 6. In another modification a sector pivoted to the rod 6 moves over a fixed plane surface. Slip is prevented by providing teeth on the sector and fixed surface, or by wire ropes anchored at one end to a fixed point and secured at the other to the sector.
Patent GB-673305-A (GB)
Title: Improvements relating to apparatus for electrically heating a gas and the use thereof in the carrying out of gas reactions
IPC: B01J8/00
Filed: 1950-07-19
Abstract: <PICT:0673305/III/1> An apparatus for the synthesis of ammonia from a mixture of hydrogen and nitrogen comprises an electric heating element (see Group XI] disposed in a tube 4 in a casing 5 which contains a heat exchanger 1 and a chamber 2 in which is located a catalyst and in which the synthesis takes place.  The gas mixture is introduced at 6 and enters the exchanger 1 where it is heated by the outgoing gases.  From the exchanger 1 it passes up the tube 4 and down a tube 3 the purpose of which is to maintain the catalyst temperature constant.  The gases then contract the catalyst in the chamber 2 and leave the apparatus via the heat exchanger.  The purpose of the electric heating element is to provide the energy to supply fresh catalyst material by reduction, and also to facilitate starting up of the apparatus when cold.  Part of the gas mixture may be introduced at 7 to be pre-heated, and additionally or alternatively the mixture may enter at 8 and byepass the exchanger 1. Specification 633,284, [Group XI], is referred to.
Patent GB-219983-A (GB)
Title: A process for separating hafnium and zirconium
IPC: C01G25/00
Filed: 1924-07-29
Abstract: Hafnium and zirconium are separated by fractional crystallization or precipitation of their higher basic compounds such as Hf2O3CL25H2O, Hf2 O3 (NO3)2 5H2O and Hf2 O3 (SCN)2 5H2O and the corresponding zirconium compounds.  Mixed zirconium and hafnium oxychlorides are dissolved in alcohol whereupon ether is added, the precipitate containing more Zr2 O3 Cl2 5H2O than corresponds with the p proportion of zirconium in the original mixture; or acetone or other suitable precipitant may be used instead of ether; or a solution of the mixed oxychlorides in a mixture of alcohol and ether may be treated with water, the precipitate in each case containing a higher proportion of zirconium than the original mixture.  Hafnium and zirconium sulphocyanides are obtained by adding sulphocyanic acid to the hydroxides.  Specifications 219,024 and 219,327, [both in Class 1 (iii), Oxides &c., Metallic], are referred to.ALSO:Hafnium and zirconium are separated by fractional crystallization or precipitation of their higher basic compounds such as Hf2O3Cl25H2O, Hf2O3(NO3)25H2O and Hf2O3-(SCN)2.5H2O and the corresponding zirconium compounds.  Mixed zirconium and hafnium oxychlorides are dissolved in alcohol whereupon ether is added, the precipitate containing more Zr2O3-Cl25H2O than corresponds with the proportion of zirconium in the original mixture; or acetone or other suitable precipitant may be used instead of ether, the precipitate in each case containing a higher proportion of zirconium than the original mixture.  The raw material may be first partially separated by means of the preparation and fractional separation of the oxychlorides, the process of the invention being applied to the oxychloride concentrate thus obtained. Specifications 219,024 and 219,327 are referred to.
Patent GB-509085-A (GB)
Title: Improvements in or relating to the production of coloured filaments, foils or other structures from viscose
IPC: D01F2/08
Filed: 1938-06-18
Abstract: 509,085. Coloured viscose filaments &c. SCHLESISCHE ZELLWOLLE AKT.- GES. June 18, 1938. No. 18162. Convention date, June 19, 1937. [Class 2 (ii)] Coloured filaments, foils and the like are obtained from viscose which has been prepared by causing carbon disulphide to act on alkali cellulose in the presence of such dyestuffs as contain one or more free hydroxyl groups. Suitable dyestuffs are (1) Naphthol AS # Fast red 3GL base ; (2) Naphthol AS-E # Variamine blue salt FG ; (3) Naphthol AS-SG # Fast red B base ; (4) Diazo brilliant green 3G ; (5) Alizarine fast blue BHG; (6) Diamond. black PV ; (7) Immedial pure blue ; (8) Sudan blue G and (9) Sudan red 3R.
Patent GB-147552-A (GB)
Title: An improved device for emptying in a continuous and adjustable manner receptacles which contain self locking material of unequal size
IPC: B65G65/46
Filed: 1920-07-02
Abstract: 147,552. Martin, J. July 11, 1919, [Convention date]. Loading-hoppers.- An appliance of the screw-conveyer type for emptying a hopper containing ore, refuse or other material liable to jam, comp r i s e s a funnelshaped outlet b secured to the hopper a and containing a tapered screw conveyer c. Lateral partitions e are arranged in the outlet at the sides of the conveyer to prevent the ejected material from rotating.
Patent GB-1426594-A (GB)
Title: Brushless synchronous motor
IPC: H02P1/50
Filed: 1973-04-16
Abstract: 1426594 Brushless motors; control of A.C. motors; motor protection systems WESTING- HOUSE ELECTRIC CORP 16 April 1973 [1 May 1972] 18234/73 Headings H2A H2K and H2J In a brushless synchronous motor in which the output of a rectifier 17 connected to the exciter armature 16 is fed to the motor field winding 13 through a thyristor 19, a protective circuit connected across the rectifier output short circuits the rectifier in the event of thyristor 19 conducting during subsynchronous operation of the motor, thus preventing the rectified exciter output being fed to the field winding and causing possibly damaging pulsating torques on the motor shaft. The protective circuit comprises a thyristor 25 triggered by the voltage induced in the field winding during run-up, in the event of thyristor 19, which is normally non-conductive during run-up, being defective and conducting. During normal runup, the current induced in the field winding flows through resistor 21 and either diode 23 or thyristor 22 which is triggered by the induced voltage.
Patent GB-233205-A (GB)
Title: Improved apparatus for testing hardness by impact
IPC: G01N3/48
Filed: 1924-07-31
Abstract: 233,205. Haas, A. L. July 31, 1924. Testing hardness of materials.-The force of the blow on the test ball or cone producing the indentation is obtained from a spherical or cylindrical weight falling freely by gravity from a known height, which may be varied. A spherical weight impinges directly on the test ball in contact with the specimen, but in the case of a cylindrical weight the ball is preferably housed on the underside of the weight. A tubular casing enclosing the spherical weight M may be in one length, but is preferably in sections A, A, telescopic by means of bayonet connections B, C. The test ball U is housed between diaphragms R, T having slots through which projects screws P fixed on a ring 0 and folding rigid a diaphragm N having a hole Q in the centre through which the test ball projects to receive the blow from the weight M, which is held up in position by an oval garter spring K which is deformed to a circular shape by hand to release the weight. The top of the casing is enclosed by an annular washer H, an indiarubber washer I, and a diaphragm D rigid with the casing by screws F and carrying a spirit level G. The weight is re-positioned for a further test by merely inverting the apparatus. Fig. 4 shows the test ball U housed by a plate 2 on the underside of a cylindrical weight V. In a modified means for releasing the weight horizontal wing-shaped members project through slots in the casing and through corresponding slots in a cylinder surrounding the casing and revoluable thereon, rotating of this cylinder withdrawing the wing-shaped members against spring pressure to release the weight.
Patent GB-613577-A (GB)
Title: Improvements in or relating to arrangements for laying cables
IPC: H02G1/06
Filed: 1946-06-18
Abstract: 613,577. Cable-laying apparatus. CLARK, P. F. June 18, 1946, No. 18317. [Class 36] A cable-laying apparatus comprises a trolley 10 and a cable-supporting structure 11 mounted on the trolley and able to swivel thereon, the supporting structure carrying guide members 48, 52, through which the cable is led, enabling it to be laid along a path offset with respect to the direction of travel of the trolley. The structure 11 is rigidly mounted on a base 14 provided with supports 15 upon which ramp members 16 are mounted. To raise the cable drum 17 ori to the apparatus the guide roller 48 and the cross beam 49 are removed and an axle shaft 18 is passed through the central hole of the cable drum 17. The winch 33 and pulley gear 30, 31 are operated to allow the inverted U-shaped structure 20, 21 to be pivoted about pins 22 until hooks 28 can be secured to axle shaft 18, when the winch 33 is reversed and the drum 17 drawn up the ramp 16. The guide roller 48, which is concave in axial section, is replaced and pivoted to the ramp at 51 and the cross beam 49 carrying roller frame 52 is secured. The cable end is then led over roller 48 and through frame 52. A locking-pin (not shown), is removed from platforms 13, 14 and the structure 11 is slewed round to the desired position, where it is locked. The carriage is drawn by means of tow bar 58 and the cable paid off into a trench. A plough may be secured to cross beam 49 to make the trench at the same time. Specification 560,820 is referred to.
Patent GB-926892-A (GB)
Title: Improvements in or relating to methods of making films and films made by such methods
IPC: B29C41/24
Filed: 1961-05-19
Abstract: A thin film of a non-adhesive organic polymeric electrical insulating material is made by coating a solution of the material on a surface of a flexible support on to which a thin coating of a high molecular weight organic polymeric adhesive has previously been deposited, and the dried coating subsequently removed from the support.  Specified insulating materials include cellulose acetate, ethyl cellulose, benzyl cellulose, polystyrene, polyethylene, polytetrafluoroethylene and polyethylene terephthalate, which are cast from solution in volatile organic p  solvents, e.g. cellulose acetate from acetone. The adhesive should be thermally stable, have a low vapour pressure, and dielectric properties similar to those of the insulating material. A suitable adhesive comprises at least one polymerized hydrocarbon or polymerized vinyl ether or a mixture thereof, e.g. polyisobutylene or polybutylene having a molecular weight of approximately 5,000, or polyvinylisobutyl ether.  Desirably, the flexible support is first coated with a non-adhesive hydrocarbon having a melting point of at least 60 DEG C., on to which the adhesive is deposited.  The hard wax formed in the Fischer-Tropsch process, consisting of high molecular weight aliphatic hydrocarbons, partly branched, and melting at 105 DEG -110 DEG C., may be utilised as a non-adhesive hydrocarbon.  Films so made are desirably not more than 6m  thick, and may be metallized, e.g. with aluminium, by vapour-deposition under vacuum, for use as capacitor dielectrics. In an example, a flexible support of paper or synthetic plastic material is impregnated or coated with the hard wax mentioned previously, and is then further coated with a benzene solution of polyisobutylene of molecular weight 5,000.  The adhesive layer is dried and the treated support is then coated with a solution of cellulose acetate in a volatile solvent, and the support heated to evaporate the solvent. Metallization of the film may be effected before removal of the film from the support.
Patent GB-812357-A (GB)
Title: Improvements relating to covered buttons
IPC: A44B1/12
Filed: 1955-06-24
Abstract: 812,357. Buttons; buckles. BERNING, O., and BERNING, R., [trading as BERNING & CO., O.]. June 24, 1955 [June 26, 1954; Sept. 14, 1954], No. 18395/55. Class 43 Two part metal buttons and buckles comprising unitary upper and lower parts respectively have the upper part which is initially convex formed to a desired contour by a die-stamping operation in which a piece of covering material is simultaneously bonded to the upper surface of said part, the so-covered upper part being afterwards engaged with the lower part and united by crimping the overlapping covered margin. Fig. 3 shows the metal upper part 1 of a button blank supported by a forming tool 6 part of which is surrounded by a sleeve 7 with a widened upper portion that provides an abutment shoulder for a compression spring 8, and also provides an internal seating to support a piece 4 of covering material. A thermo-adhesive sheet 3 is located centrally between the blank 1 and the covering material. A die 9 is mounted above the assembled parts within a sleeve 10 having a rim 10<SP>1</SP> dimensioned to fit within the upper end of sleeve 7 and trap the margin of covering material against the part 7<SP>1</SP> of the inner surface of the sleeve 7 when the upper sleeve 10 carrying the die 9 is urged downwardly by a heated press platen 11, with the result that the parts 6 and 9 co-operate to contour the blank 1 and simultaneously stretch and contour the covering material 4 and due to the heat transmitted to the sheet 3 from the platen, the covering material is attached to the upper surface of the blank, as shown in Fig. 4. This Figure shows the sleeve 10 and die 9 together with the covered part 1 of the button positioned for attachment to the lower part 2 which is supported upon a tool 13 provided with a surrounding spring-pressed sleeve. Depression of a plunger 18 upon the die 9 causes the overlapping margin 14 of covering material to engage the bevelled edge 19 of the lower sleeve and fold upwardly around the edge 15 of the part 1 of the button, in which position it is retained when further movement of the die causes it to be caught between the upturned edge of the lower button part 2 and the overlapping edge 15 of the upper part 1. In a modification, Figs. 6-10 (not shown) the covering applied to the upper part 1 of the button comprises a fabric or other material with a superposed disc or piece of transluscent or transparent thermoplastic material which is pressed upon it by apparatus similar to that shown in Figs. 3 and 4. In this case also the platen and hence the die is heated so that the thermoplastic securing disc or piece easily takes the shape of the forming tool.
Patent GB-641356-A (GB)
Title: Improvements in or relating to voltage limiting arrangements for electric amplifiers
Inventor: MOODY NORMAN FRANK
IPC: G01R17/00
Filed: 1947-07-11
Abstract: 641,356. Measuring bridges. STANDARD TELEPHONES & CABLES, Ltd. July 11, 1947, No. 18497. [Class 37] [Also in Group XL (c)] The output of a bridge is applied to an attenuator whose attenuation increases with applied voltage, and consisting of two oppositely directed rectifiers 10, 11 shunting part of the primary of a transformer 8 feeding a valve 7. The invention is particularly applicable to automatically balanced bridges, the out-ofbalance current being fed to the transformer 8 and the output 6 controlling the variable arm of the bridge. Specification 641,351 is referred to.
Patent GB-1124961-A (GB)
Title: Improvements in or relating to apparatus for water level measurement in pressure vessels
Inventor: DINES CHARLES EDWARD
IPC: G01F23/16
Filed: 1965-05-03
Abstract: 1,124,961. Liquid level indication. ELLIOTT BROS. (LONDON) Ltd. May 11, 1966 [May 3, 1965], No. 18512/65. Heading G1H. In a pressure vessel water level measurement arrangement in which an open ended pipe 10, subjected to the head of water in the vessel 2, leads to a differential pressure device through a pipe 8 and a reference column 7 also leads to the differential pressure means the reference column is extended vertically through the water 9 in the vessel 2. The standing head in the reservoir 4, connected to the column 7, is maintained at a constant level and saturation temperature. The level is maintained by condensation, from a steam connection 1, in a chamber 3 arranged externally of the vessel 2. In alternative arrangements the reservoir 4 is arranged in the vessel 1 and the liquid head is kept constant by feed water or condensation from a coil arranged above the reservoir 4. When the reservoir 4 is arranged in the vessel 2 the pipe 7 is fed from a standpipe 33 connected to the side of the reservoir 4.
Patent GB-313630-A (GB)
Title: Improvements in indicating devices with two electrically operated signals
IPC: B61L25/08
Filed: 1929-06-15
Abstract: 313,630. Oppegaard, K. F. T. June 15, 1928, [Convention date]. Drawings to Specification. Road-signals.-The Specification as open to inspection under Sect. 91 (3) (a) comprises a road signalling device with two differently coloured electric lamps arranged in series, one being of higher resistance and adapted to be short-circuited by a relay. This subject-matter does not appear in the Specification as accepted.
Patent GB-185726-A (GB)
Abstract: 185,726. Brendle, J. Sept. 5, 1921, [Convention date]. Factory and like timerecorders; aligning and locking time type-wheels. -Consists in the provision of locking-means for the time type-wheels adapted to be actuated by hand and to hold the wheels for the length of time required to make a single impression or a number of impressions in succession. As shown applied to an individual record-card machine, Fig. 1, the main operating lever 1 when actuated causes a pawl 3 on the arm 2 to rotate a cam 4 on a spring-controlled carrier-piece 5 until a pin 11 disengages the pawl from the cam and permits the impression-hammer 8, carried by the piece 5, to return and press the record card against the time type wheels 12. At the same time a finger 21 on the shaft of the operating lever 1 co-operates with an arm 20 fixed on a shaft 15; to this shaft is secured a holder 16 comprising arms connected by pins 17, 18, and pivotally mounted between the arms of the holder 16 are three locking pawls 14 elastically connected by springs 19 to the pin 17 of the holder and which are thereby caused to engage and hold the type-wheels while the impression is being made. When the lever 1 returns to its normal raised position the holder 16 is returned by its own weight to free the type-wheels. In order to hold the type-wheels for a number of impressions an auxiliary lever 22 mounted on the main lever 1 is provided and which, on being depressed and retained in this position with respect to the lever 1, rocks a bell-crank lever 23 which will then be in a position to engage an abutment 25 on the framework and limit the stroke of the operating- lever 1 so that the locking pawls 14 are not tripped by the partial return of the holder 16. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which a separate hand lever is provided to throw the locking pawls into and out of operation and simultaneously by means of links a slide is moved to uncover or close the aperture of the card receptacle. This subject-matter does not appear in the Specification as accepted.
Patent GB-185983-A (GB)
Abstract: 185,983. Andrews, W. E. Oct. 26, 1921. Auxiliary gear; eccentric - actuated pumps; single-acting suction-valveless pumps; mountings; strainers; suction reservoirs; valves, arrangement of ; valves, facilitating removal of.-A lubricating- pump comprises a barrel j screwed into a hole in the base of the reservoir a, the threaded portion projecting below the base to receive the delivery pipe. A nut-shaped Bange v on the barrel, provided with several suction ducts P rests on the bottom of the reservoir. A strainer surrounds the suction ports and is held in position by the plunger spring k. The plunger is actuated by an eccentric o operated by pawl and ratchet gear m, q. The eccentric may be operated also by a hand-crank on the eccentric shaft. Several pumps may be arranged in the reservoir. The delivery valve e is held to its seat by a spring g resting on a screw d.