baber/WOPTO huggingface dataset:
Patent GB-569329-A (GB)
Title: Improvements in internal-combustion impulse turbine engines
IPC: F01D1/34
Filed: 1943-11-24
Abstract: 569,329. Elastic fluid turbines. NICHOLSON, T. A. E. Nov. 24, 1943, No. 19625. [Class 110 (iii)] The invention deals with an improved combustion chamber f on the turbine described in Specification 157,630, [Class 110 (iii)]. The turbine has a number of chambers f provided with directing nozzles g in a fixed casing a which supply working fluid to the teeth or vanes d on the periphery of a rotor b which 'reciprocates axially to compress gas or air before it is led to the combustion chambers. The casing may reciprocate instead of the rotor. The chambers f may be inside the ring of teeth on the rotor. Sparking plugs j, fired simultaneously, may be fitted, when fuel is gas used or fuel injected into compressed air. The chamber heads e may have detachable tops which carry inlet and exhaust valves. The casing box may carry teeth.
Patent GB-597345-A (GB)
Title: Improvements in stabilised modulated oscillators
IPC: H03L5/00
Filed: 1945-07-31
Abstract: 597,345. Valve generating circuits. DU MONT LABORATORIES, Inc., A. B. July 31,1945, No. 19626. Convention date, Aug. 5,1944. [Class 40 (v)] [Also in Group XXXVI] An oscillator which is modulated by a low-frequency potential to increase its stability, comprises a delayed automatic volume control having a filter circuit which is tuned to the modulation frequency, so that the oscillator may operate near its quench point and with out distortion while being subjected to wide variations of load. The Figure shows an oscillator circuit which may be used for the purpose of testing metals. A tuned circuit 1 and 1<1> is connected between the control grids of valves 8 and 9, which with valves 20 and 21 forms a push-pull oscillator circuit of known type. A supply of low-frequency voltage from source 2 is connected to coil 1 via resistor 3, which modulates and helps to stabilize the oscillator output. The output of the oscillator is applied by means of cathode loads 26 and 27 and gain control resistances 46 and 47, to amplifying valves 48 and 49. The output from the anodes of valves 48 and 49 may be applied through rectifying and filter circuits to a cathode-ray tube, meter or other indicating device. The output from these valves is also applied via condensers 63 and 64, to diodes 65 and 66. The cathode potentials of these diodes is held at a positive potential by means of resistors 69, 70, 71 and 72 connected to a positive voltage supply, so that the diodes conduct only when the amplitude of the oscillations from valves 48 and 49 exceeds this potential. When diodes 65 and 66 conduct, the network of resistors and condensers 81 to 75 allows a negative bias to be applied to the grid of valves 8 and 9 through lead 80, thus providing a delayed automatic volume control for the oscillator. Coils 44 and 45 are filters to remove lowfrequency modulating components from the output of the oscillator and a series resonant circuit 77 and 78 across the network is tuned to the modulating frequency. When used for testing metals, a specimen is passed into or through the coil 1 and this produces an effect on the oscillations depending on the metallurgical properties of the specimen. The effect may be studied by means of the cathode-ray tube or other device. The oscillator is operated substantially at its quench frequency to give more sensitivity. The automatic volume control prevented over-loading of the oscillator which might occur when the metal specimen is withdrawn.
Patent GB-739579-A (GB)
Title: Thermal regulating device for turbo-generators
IPC: H02K1/32
Filed: 1954-07-05
Abstract: 739,579. Cooling dynamo-electric machines. AKT.-GES. BROWN, BOVERI & C1E. July 5, 1954 [July 3, 1953], No. 19629/54. Class 35. To adjust the cooling of a turbo-rotor with a view to restoring dynamic balance the size of a cooling passage near the end of the rotor is adjusted by a member forming part of the rotor surface. As shown, 8 and 10 are wedges disposed in parts near the rotor end of an axial duct formed in a rotor tooth and the size of the gap 12 and hence the amount of coolant that can flow therethrough is adjustable by a member 11 slidable in grooves of said duct. The coolant enters under the rotor end windings and some of it flows towards the rotor centre, beyond wedge 8.
Patent GB-720122-A (GB)
Title: Improvements in or relating to nickel alloys and springs made therefrom
IPC: C22C19/05
Filed: 1952-08-05
Abstract: The alloys of the parent Specification, which are used particularly for winding springs for watches, clocks and other instruments, are modified by reduction of the proportions of any one or more of constituents Cr, Be and Ti.  The reduced proportions then lie in the following ranges, Cr 10 to less than 15 per cent, Be 0.005 to less than 0.6 per cent and Ti 0.01 to less than 0.6 per cent.
Patent GB-1144957-A (GB)
Title: Improvements in or relating to spindle sockets
Inventor: KUZNETSOV VIKTOR SERGEEVICH
IPC: D01H7/88
Filed: 1967-04-28
Abstract: 1,144,957. Mounting textile spindles. KOLOMENSKY ZAVOD TEKSTILNOGO MASHINOSTROENIA. 28 April, 1967, No. 19746/67. Heading D1D. A bushing for supporting a textile spindle 13 comprises an upper part 1 and a lower detachable part 7, 8, centred one relative to the other and each provided with a recess 3, 4 to receive upper and lower bearings 5, 6. The part 7, 8 is in two halves 7 and 8 which are screwed together, see Fig. 7 not shown, to be clamped on the reduced lower end 18 of the part 1. The bearings are mounted in shock absorbers 15, 16.
Patent GB-1023027-A (GB)
Title: Improvements in or relating to heat-and impact-resistant bodies or structures and a method of producing them
IPC: C08B15/08
Filed: 1963-05-17
Abstract: The article and method of the parent Specification (wherein cellulose crystallite aggregates having a level-off degree of polymerization are formed into a heat- and impact-resistant body or structure in which the aggregates are bonded together by mechanical interlocking and intermolecular forces) is modified in that cellulose crystallite aggregate derivatives are used in place of cellulose crystallite aggregates.  Many derivatives are disclosed (see Specification 976,335) including oxidation products, ethers and esters.  The bodies may be formed by subjecting the aggregate derivatives to pressure with consequent attrition and disintegration of the aggregate derivatives, or by attriting the derivatives in presence of a liquid to form a wet gel, and then drying the gel.  In Examples (1) a mixture of water and oxidized cellulose crystallite aggregates is dewatered by pressure in a mould, and the resulting compressed paste is air-dried to horn-like mass; (2) a mixture of acetone and cellulose aggregates acetate is treated as in (1); (3) a dry ethyl derivative of cellular aggregates is pressed into a disc; (4) a hydroxyethyl derivative of cellular aggregates is pressed to a flat disc; (5) a mixture of oxidized cellulose aggregates and water is attrited in a mixing device to form a gel dough which is diluted and dried to a hard mass.
Patent GB-838580-A (GB)
Title: Methods and apparatus for colour coding electric conductors
IPC: B29C48/19
Filed: 1958-06-20
Abstract: 838,580. Coating electrical wires. STANDARD TELEPHONES & CABLES Ltd. June 20, 1958 [June 24, 1957], No. 19824/58. Class 87(2). A method of producing a colour coding on the insulating coating of an electrical wire 29 comprises making a preform of insulating material, e.g. polytetrafluoroethylene, which contains an insert 7 of a different colour to that of the body of the preform and extruding the preform over the continuously moving wire 29 to produce a coating having a coloured marking. The preform is extruded by a worm and wheel actuated ram 32 in a cylinder 21. The preform may be made (a) by inserting a spiral thread(s) in a cylinder, filling the cylinder with the body material and compressing to make the preform, or (b) by helically laying different materials in a cylinder and then compressing to make the preform.
Patent GB-515916-A (GB)
Title: Improvements in electrically driven shearing heads for shearing or clipping horses, sheep, and other animals
IPC: B26B19/24
Filed: 1938-07-05
Abstract: 515,916. Clippers &c. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and BESWICK, W. E. July 5, 1938, No. 19844. [Class 131] An electric clipper is provided in front of the motor casing A with a gear casing B of diminished lateral dimension, and a plate For pair of lateral projections f extending laterally beyond the gear casing so as to leave an annular or part annular channel to afford a convenient hand hold. An electric lamp with shield H is fixed to the front of the plate to illuminate the part to be clipped.
Patent GB-612078-A (GB)
Title: Improvements in or relating to the colouration of yarn or fabrics composed wholly orpartly of secondary or acetone-soluble cellulose acetate
IPC: D06P1/673
Filed: 1946-07-03
Abstract: Textile material composed of secondary cellulose acetate is pretreated with a solution of a thiocyanate and a liquid organic swelling agent and/or solvent for the cellulose acetate and is then dyed.  Suitable dyestuffs are those specified in Specification 592,858.  The material is preferably maintained in a relaxed condition during the pretreatment.  In examples: acetate satin beaut<\>ae is (1) pretreated for 5 mins. at 20-25 DEG  C. in a bath containing 25 per cent ethyl alcohol, 10 per cent ammonium thiocyanate and 65 per cent water, and dyed with Chloramine New Blue 5B; (2) pretreated as in (1) and dyed with Direct Violet 2R; (3) pretreated as in (1) and dyed with Direct Green 2G; (4) pretreated for 5 mins. at 20-25 DEG  C. in a bath containing 16 per cent ethyl lactate, 10 per cent ammonium thiocyanate and 74 per cent water and dyed with Caledon Brilliant Red 3BS paste vatted with sodium hydrosulphite and ammonia, and (5) pretreated as in (4), dyed with Brenthol AS and developed with diazotized Fast Red B base.
Patent GB-655392-A (GB)
Title: Improvements in and relating to temperature compensating mechanisms
IPC: H01P7/06
Filed: 1947-07-24
Abstract: 655,392. Etectric resonators. BRITISH THOMSON-HOUSTON CO., Ltd. July 24, 1947, No. 19917. Convention date, July 26, 1946. [Class 40 (viii)] Changes in the electrical characteristics of a device due to alterations in temperature are compensated by movement of a member secured to an elongated piece adjustably mounted in a hollow support with end portions of the same temperature coefficient as the elongated piece, and an intermediate section having a different temperature coefficient. A cavity resonator is formed in a block 1, which carries a tubular support 8 formed in three parts bonded together, the intermediate section 10 having a higher temperature coefficient than the end sections 9, 11 which are preferably of the same material as the block 1. Variations in the dimensions of the resonator due to changes of temperature are compensated by a flexible diaphragm 7 bonded to a bolt 15, the upper end of which engages a threaded bore in an adjusting screw 16, which engages a bore in the outer member 11 of the support 8. The internal and external threads of the screw 16 are of different pitch so that the diaphragm 7 may be adjusted. The screw 16 and bolt 15 are of the same material as the block 1, so that an alteration in temperature causes a different alteration in the length of the intermediate section 10 of the support 8 from the change in the length of screw 16 and bolt 15 so that the diaphragm 7 is deformed to compensate for variations in the dimensions of the resonator.
Patent GB-1341059-A (GB)
Title: Rolling mill control system
IPC: B21B1/32
Filed: 1971-06-10
Abstract: 1341059 Automatic control of rolling mills ALLEGHENY LUDLUM INDUSTRIES Inc 10 June 1971 [ 15 June 1970] 19998/71 Heading G3R A rolling mill gauge is controlled in response to an error between the actual or average strip input or output speed, and a value calculated, using constant volume of material through the mill, from measurements of the input gauge, the input and output actual or average speed, and a desired output gauge. In the embodiment shown, input gauge G, is measured by an X-ray or contact device 36, and fed through digitizer 40 to shift register 44 which is pulsed at intervals corresponding to predetermined input lengths e.g. 1 foot, as measured by roll 28, pulse generator 48 and interval counter 50. Register 44 acts as a time delay compensating for the distance between device 36 and the bite of the rolls. As shown, a computer 46, is fed by pulses proportional to the output length L 2  measured over the interval by roll 30, pulse generator 54 and interval counter 56; the desired output gauge G 2 d , set manually; and the input gauge G 1 , and calculates a value of input length L 1  which is compared with an actual value, measured over the same interval, from counter 58, to provide a gauge correction signal applied to the screw control 20 and /or the tension control 34. To compensate for errors in the computation, the actual output gauge G 2  may be measured by device 38 and compared with desired output gauge D 2 d  to provide a further correction signal. In other embodiments Figs. 2-4, (not shown) the values of input speed, output speed or length are calculated and compared with their respective actual values to provide a gauge correction signal.
Patent GB-499314-A (GB)
Title: Improvements in or relating to electric tumbler switches and covers
IPC: H01H23/04
Filed: 1937-07-20
Abstract: 499,314. Switch-covers. WATSON, A. July 20, 1937, No. 20030. [Class 38 (v)] A wall box fitted with a cover-plate C and holding one or more switches, may be fixed with any edge uppermost while the switches are retained in their most satisfactory working position. The switch dollies have flanges B which fill the symmetrical holes in the cover-plate C through which they project, to render the box dustproof, and of each group of four screws F, two diagonally opposite hold one switch, and the other two hold the cover C to the base of the box.
Patent GB-148226-A (GB)
Title: High pressure case for fire extinguishers and the like
IPC: A62C99/00
Filed: 1920-07-09
Abstract: 148,226. Schworetzky, G., WerlÚ, N., and Graaff, C. March 21, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Portable pressure reservoirs; fire-extinguishing by gases.-Compressed-gas containers, adapted to retain their pressure for long periods and applicable to fire-extinguishers &c., are provided with a filling-orifice adapted to be soldered after charging, and a separate discharge orifice closed by a breakable membrane held in position by solder and also by a cap. In the form shown in Fig. 1, the conical filling-opening e is closed both by a lead ball l forced outwards by the pressure, and by solder on the outside. In the form shown in Fig. 2, a filling-tube n is sealed by punching and then soldering, a protecting-cap u being then applied. The membrane m is soldered to the edge of the neck of the container, and is also held firmly between a bell-shaped member g, with a discharge opening d, and a screw cap k having a central opening closed by a loose disk s. A tube may extend upwards from the opening d to prevent escape of any liquefied gas contained in the lower part of the vessel. The cap k may carry a striker z, Fig. 4, having an enlarged head c and a groove r adapted to be engaged by a retaining- spring i when the striker is operated.
Patent GB-1262939-A (GB)
Title: Novel polyesters and a process for their preparation
Inventor: WIRTH WOLF DIETER
IPC: C08G63/685
Filed: 1969-04-21
Abstract: 1,262,939. Hydroxyl-containing lactone polyesters. FARBENFABRIKEN BAYER A.G. 21 April, 1969 [30 April, 1968], No. 20188/69. Heading C3R. Hydroxyl-containing polyesters derived from a lactone and having a M.Wt. of 300 to 20,000 have the formula in which R 1  and R 2  are hydrogen, C 1 -C 4  alkyl, C 1 -C 4  hydroxy-alkyl, allyl, cyanoethyl, substituted or unsubstituted C 6 -C 12  aryl or heterocylic radicals; R 3  and R 4  are hydrogen, C 1 -C 4  alkyl, C 6 -C 12  cycloalkyl, C 1 -C 4  alkoxy or substituted or unsubstituted C 6 -C 12  aryl and at least n+2 of these radicals in each lactone residue are hydrogen; R 5  is hydrogen or C 1 -C 4  alkyl; n is 4, 5 or 6; and x is zero or an integer. The polyesters are formed by heating lactones of the formula suitably in an oxygen free atmosphere to 50- 300‹ C. in the presence of at least one hydrazine of formula R 1 -NH-NH-R 2 . Preferred reactants are #-caprolactone or a substituted #-caprolaotone (many of the latter being specified), and hydrazine, methyl or phenyl hydrazine or 2-hydrazinoethanol-(1)-zeta-oenantholactone and eta-caprylic lactone.
Patent GB-616319-A (GB)
Title: A process of making a silver acetylide derivative
IPC: C07F1/00
Filed: 1946-07-08
Abstract: A non-explosive silver acetylide, hexasilver nitrate monosilver acetylide Ag2C2.6AgNO3 is prepared by absorption of acetylene in concentrated aqueous silver nitrate solutions containing more than 20 per cent anhydrous silver nitrate and preferably also containing ferric nitrate and nitric acid.  A solution containing 31 per cent weight anhydrous silver nitrate, 3.2 per cent weight ferric nitrate and 11 per cent weight nitric acid permits acetylene to be used when in admixture with hydrogen, as in coke oven and coal gas, since the ferric nitrate and nitric acid prevent reduction to metallic silver which would otherwise occur.  Specification 616,318 is referred to.
Patent GB-689060-A (GB)
Title: Improvements in or relating to constant fluid flow valves
Inventor: RICHARDS STANLEY THOMAS ARTHUR
IPC: G05D7/01
Filed: 1950-08-18
Abstract: 689,060. Valves. NORMALAIR, Ltd. Aug. 17, 1951 [Aug. 18, 1950], No. 20497/50. Class 135. An automatic constant flow valve consisting of a plunger v slidable on a fixed guide rod r and moved against a spring 3 towards a seating p by the difference of fluid pressing between an inlet t and an outlet o has a cage c guided in the housing of the valve and having internal flanges d, e for cooperation with a flange z on a sleeve carried by the plunger, and links 4, and a tube 6 for moving the cage by means external to the valve whereby the automatic operation of the valve may be overridden. The inlet end of the plunger is guided on the rod r by rollers w. Instead of the links 4 being attached to the tube 6, as shown, they may have a pivotal connection with a crank arm carried by a shaft mounted in an enlargement of the valve housing. An external trip mechanism may be provided for cutting out the override control. Specification 575,610 is referred to.
Patent GB-1426262-A (GB)
Title: Control system for railway installations
IPC: B61L27/00
Filed: 1973-04-30
Abstract: 1426262 Railway control SIEMENS AG 30 April 1973 [2 May 1972] 20514/73 Heading B7N In a railway signalling system in which a rail -section is divided into zones and zone occupancy information is transmitted from the trains to a central control office and stored in. a section store-which has zone stores arranged to simulate the track layout, the central office computers determining speed information for transmission to a train are only switched on during cyclic interrogation of the zone storeswhen particular marked zone stores are indicated as occupied by the train or when a distance detector produces an indication from the occupied zone stores that the train has approached to a set distance from a train ahead. The marked zone stores correspond to track zones which are spaced a number of zones apart depending on the expected traffic density.
Patent GB-243452-A (GB)
Title: Improvements in or relating to oil-immersed electric switches
IPC: H01H9/22
Filed: 1924-08-30
Abstract: 243,452. Reyrolle & Co., Ltd., A., Coates, F., and Mirrey, J. Aug. 30, 1924. Oil switches; switches, quick-action; switch mechanism interlocking with lids.-In boxes for oil switches having an outer lid A<1> hinged at A<2> and an inner lid or frame B hinged to the outer lid at B<1> and carrying the movable switch contacts D, the inner lid B is raised and circuit thereby broken by rotation of a spindle G which carries outside the box an operating handle J and a catch H which engages a projection A<4> on the box so as to prevent the lid A<1> being opened till the switch is in the open position. Engagement of the members H and A<4> also prevents the lid A' being closed if the lid B is in its lower or switch-closed position. The raising of the lid B by rotation of the spindle G is effected by the spindle G carrying a sector K which engages a toothed 'wheel L carrying a crank 0 connected to the lid B by a link P. The crank 0 moves round in a counter-clockwise direction thereby moving a spring P<1> over dead-centres and effecting a snap action. The contacts D are preferably spring- pressed plungers mounted in holders C' which also grip blocks E<3> connected by tension springs E<2> to clamping members E<1> which hold a fuse E between them. When the fuse E blows the springs E<2> separate the members E<1>.
Patent GB-226460-A (GB)
Title: A new or improved reservoir spoon
IPC: A61J7/00
Filed: 1924-08-30
Abstract: 226,460. Miele, A. A. Aug. 30, 1924. Spoons.-A reservoir spoon comprises a bowl portion 1 and deeper reservoir portion 2 communicating therewith through a contracted passage 3, the lower level of which is substantially on a level with the upper surface of the bowl. The spoon may be provided with a downwardlyturned part 4 so that it may rest on a surface without spilling the contents, and may also be provided with a handle and/or a cover for the reservoir.
Patent GB-206491-A (GB)
Abstract: 206,491. Aktiebolaget G. Arehns Mekaniska Verkstad. Nov. 4, 1922, [Convention date]. Packing cigarettes &c. into boxes.-The shells of drawer-and-shell boxes for cigarettes &c. are opened out from the flat-folded position by being subjected to suction on two opposite sides. The shells 2 are fed forward by a slide so as to rest between a fixed table 4 and a plate 5 which can be reciprocated in an inclined guide 14. Suctionchannels 6, 9 are provided so that as the plate 5 is moved upwards the opposite faces of the shell 2 are subjected to a suction. Simultaneously a flange 17 on the plate 5 squeezes the shell against a spring-controlled abutment 18 on the table 4 and assists the opening of the shell.
Patent GB-238708-A (GB)
Title: Improvements in ironing machines
IPC: D06F83/00
Filed: 1924-09-02
Abstract: 238,708. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 2, 1924. Ironing-machines, work supports for.-A. work support such as the roller of a Decoudun machine, comprises a solid base 4, and a separate member 1 detachably secured to the base, with a plurality of protruding resilient members 3, such as corks, or springs, positively secured to the separate member and arranged sufficiently close together to form a resilient surface. The corks may be screwed to the member 1 or they may be driven through the apertures therein from the opposite side, or the apertures may be tapped and the corks screwed through the tapped apertures. In some forms, not shown, springs may be used in place of the corks, or springs having cork caps may be used. In a further modification Fig. 9, comparatively large cork slabs 11 may be used, the sides of the slabs being grooved for the reception of T-shaped members 13 which are detachably secured to the roller, longitudinal spacing members 17 being provided. The slabs may be replaced by annular cork members carried by similar T-shaped members. In another form, Fig. 17, cork slabs 35 are secured as by staples. to a flexible band 34 which is wound around the roller 36. In any of the forms the whole surface may be covered with a layer 7 of asbestos.