baber/WOPTO huggingface dataset:
Patent GB-178992-A (GB)
Title: Improvements in and relating to radio transmitting systems
IPC: H01Q1/52
Filed: 1921-02-15
Abstract: 178,992. British Thomson - Houston Co., Ltd., and Alexanderson, E. F. W. Feb. 15, 1921. Multiplex signalling; transmitting systems; magnetic modulating systems; aerials.-An arrangement of two or more antennae in close proximity, for radiating simultaneously at different wave-lengths, is characterized by the provision of an inductive or magnetic coupling which is adjusted so as to partly neutralize the mutual capacity effect of the aerials. The aerials A, B, preferably of the type described in Specification 130,064, are supplied with high-frequency current from separate sources 1, 2, the frequency of the latter being, say, less than that of the former. The value of the coupling-inductance 5 is so adjusted with respect to the capacity effect between the adjacent aerials A, B that the intermediate circuit A, 5, B is tuned to the frequency of the aerial B, which will then oscillate as if the aerial A were non-existent. The tuning of the aerial A must then be corrected to allow for the effect of the mutual inductance and capacity. A frequency trap 7, tuned to the frequency in the aerial A, is placed as a shield in series with the magnetic modulator 6 across the source 2. Alternatively the circuit A, 5, B may be tuned to a value intermediate the frequencies of the aerials A and B, in which case a frequency trap 8, tuned to the frequency of the aerial B is also employed as shown. Instead of the inductance 5, a magnetic coupling (preferably independent of the tuning-coils 3, 4) may be provided between the aerials and be similarly adjusted so as to neutralize the mutual capacity effect. The system may be extended to three or more associated aerials. Reference has been directed by the Comptroller to Specification 169,143.
Patent GB-472223-A (GB)
Title: Improvements relating to fluid pressure braking apparatus for railway and other vehicles
IPC: B60T8/18
Filed: 1937-02-22
Abstract: 472,223. Fluid pressure brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Feb. 22, 1937, No. 5255. Convention date, Feb. 22, 1936. [Class 103 (i)] A brake cylinder control valve is subject to a controlling pressure variable by the driver's valve, also to the brake cylinder pressure, and also to the pressure of a fluid supplied to a chamber of the control valve by a relay valve controlled by the load on the vehicle. The brake cylinder 15 is supplied with fluid from a reservoir 4 by means of a control valve 6. The valve 6 is controlled by fluid supplied to a chamber 7 by a triple valve 2, or a driver's valve in the case of a straight air system, also by the brake cylinder pressure acting in the chamber 17, and also by fluid supplied to a chamber 29 from the triple valve 2 by a relay valve 40 influenced by the load carried by the vehicle. The relay valve 40 comprises a piston 43 on which seats an exhaust valve 49 connected to the inlet valve 52 and a plunger 51 on which acts a spring 54. The piston 43 is connected to the body and chassis of the vehicle by a link 57 and a rod 58. Fluid from the triple valve 2 passes through a pipe 31 past the inlet valve 52 and through the pipe 32 to the chamber 29 until a sufficient pressure is attained to depress the piston 43, which allows the inlet valve 52 to close. If the vehicle is empty the exhaust valve 49 will open and connect the chamber 29 to the atmosphere.
Patent GB-1135061-A (GB)
Title: Improvements in threshing and separating assemblies
Inventor: HERBSTHOFER FRANZ JOSEPH
IPC: A01F12/28
Filed: 1965-02-06
Abstract: 1,135,061. Threshing and separating mechanism MASSEY-FERGUSON G.m.b.H. 28 Jan., 1966 [6 Feb., 1965; 30 Nov., 1965 (2)], Nos. 5270/65, 50710/65 and 50713/65. Heading A1F. [Also in Division B2] A threshing and separating assembly which provides for adjustment to allow for variations in the quantity, type or condition of a cut crop includes a rotatable drive shaft, a threshing and separating drum mounted on the shaft and having a threshing section and a separating section, a co-operating member surrounding said drum and have a concave and a separating sieve assembly surrounding the threshing and separating sections respectively, a crop inlet in said concave and an outlet in said sieve assembly, said drum and cooperating member being of greater diameter at said outlet than at said inlet, said threshing section and concave being axially and relatively movable, and said separating section and said sieve assembly being mounted for axial movement relative to one another independently of relative movement of the threshing section and the concave. As illustrated in Fig. 2 the assembly e.g. in a combine, comprises a concave 37 and sieve assembly 43 slidably mounted on guide rods 39, and movable relative to each other by manually rotatable screw threaded rods 41, 46. In an alternative embodiment (Fig. 6) the drum comprises a threshing section and a separating section each section being axially movable by manually operable means 69, 76 respectively. In other alternative embodiments the sieve assembly, or the separating section or automatically movable due to the volume of material in the assembly.
Patent GB-1242641-A (GB)
Title: Process for the manufacturing of copolymers of trioxane
IPC: C08G2/00
Filed: 1969-01-31
Abstract: 1,242,641. Trioxan copolymerization. FARBWERKE HOECHST A.G. 31 Jan., 1969 [1 Feb., 1968], No. 5341/69. Heading C3P. Trioxan is copolymerized with a cyclic acetal or linear formal in the presence of a solution of aqueous perchloric acid in an aliphatic or cyclic ether at a temperature between the melting and boiling points of the monomer mixture. Optional termonomers are bis- (alkanetriol)-triformals, polyethylene oxides, and prepolymers of molecular weight from 176 to 2000, which are obtained from 1 mole of a 1,2,-(5-11)-triol, 0 to 1 mole of an alpha, omegarliol of a molecular weight from 62 to 100, 0 to 1 mole of a monohydric acohol with from 1 to 11 carbon atoms and 1 mole of formaldehyde per 2 equivalents of hydroxy groups in the mixture. Suitable ethers are mono- and -diethylene glycol dimethyl ethers, 1,4-dioxan and tetrahydrofuran. In examples, trioxan is copolymerized in bulk with 1,3-dioxolan, 1,4- butane-, 1,6-hexane- and 1,2-propane-diol formals, and polyethyleneoxide of molecular weight 10,000.
Patent GB-308431-A (GB)
Title: Improvements in or relating to steam engines and the like
IPC: F01B17/04
Filed: 1928-02-21
Abstract: 308,431. Hirst, G. C. Feb. 21, 1928. Pistons, balancing laterally; piston-rods. - The piston-rod e of a horizontal tandem-cylinder engine, is supported between the cylinders by the outer race d of a ball or roller bearing, or by a ring secured to the outer race. The inner race is mounted on a fixed spindle b, the ends of which engage in slots a<2> in brackets a and are adjustable by means of screws g. A similar support may be arranged beneath the tail-rod and between the front cylinder and the cross-head.
Patent GB-1221242-A (GB)
Title: Grinding pad
IPC: B24B13/01
Filed: 1968-02-02
Abstract: 1,221,242. Grinding. UNIVIS Inc. 2 Feb., 1968 [22 Aug., 1967], No. 5429/68. Heading B3D. A replaceable grinding pad for grinding lenses comprises a grinding pad formed about the surface of tool with which the pad is to be used, the pad having a grinding surface having substantially the same configuration and cuvature as the tool and means for receiving, retaining and distributing a quantity of abrasive slurry mixture. The pad 30, Fig. 2, is formed of sheet steel 0À005 to 0À010 inch thick which is pressed into the desired shape between the tool 16 and a block 12 of elastomeric material. If the pad is to have a toric shape, it may first be pressed to a spherical shape and then to a toric shape. The edge of the pad may be pressed' around the edge of the tool and the pad is  secured to the tool by adhesive. The means for receiving, retaining and distributing the abrasive slurry may comprise grooves 46, Fig. 9, which are formed in the pad by being pressed, during forming of the pad, into groooves in the tool. In other embodiments, the means comprise various patterns of slots cut in the pad, Fig. 10. In a further embodiment, a succession of pads or a continuous pad 30c, Fig. 14, may be formed on the periphery of a wheel 52 from a blank 56 which is pressed on to the wheel by an elastic wheel 54.
Patent GB-1285652-A (GB)
Title: Improvements in or relating to waveguide isolators
Inventor: KOSTELNICK JOSEPH JOHN
IPC: H01P1/365
Filed: 1970-02-05
Abstract: 1285652 Isolators WESTERN ELECTRIC CO Inc 5 Feb 1970 [6 Feb 1969] 5566/70 Heading H1W A field-displacement isolator comprises an element 11 of gyromagnetic material, e.g. Alsubstituted yttrium iron garnet, arranged to one side of the axis of a section 10 of rectangular waveguide, and a dissipative coaxial stub 18 resonant at the operative frequency of the isolator and arranged in the same transverse plane as the element 11. The element 11 forms part of a magnetic circuit comprising an air gap 12, polepieces 13 and horseshoe 14. It presents different apparent permittivities to waves travelling in opposite directions in the waveguide whereby the intensity of the microwave electric field in the vicinity of the coaxial stub 18 is different for the two directions. Further, the stub is matched to whichever of the waves produces the higher electric field intensity whereby this wave is dissipated by the stub. The stub is unmatched to the other wave which is unaffected. The distance of the short-circuit 17 from the end of the inner conductor 16 is made one quarter wavelength. The impedance of the stub is determined by the penetration of the inner and outer conductors into the guide. Both conductors are screw-threaded for adjustment. The dissipative element comprises a cylindrical extension 20 of the outer conductor 15, made of glass and coated with nichrome.
Patent GB-901480-A (GB)
Title: Means for positioning a tube or other elongated article in a cutting machine
Inventor: MILLER LOUIS JOHN
IPC: B23D47/04
Filed: 1960-02-17
Abstract: 901,480. Sawing. T.I. (GROUP SERVICES) Ltd. May 12, l961 [Feb. 1 1960], No. 5580/60. Class 145. Tubes or bars 12 to be cut to length by a saw are positioned by an end-stop 10 backed by an abutment 15 and after clamping of the tube or bar in position to be cut the abutment is first withdrawn and then the end stop is slightly withdrawn so that any compression in the tube or bar caused by the arrest of its forward motion is relieved. The tube is moved up to the stop by a feed-member on an endless chain driven by an air motor which stalls while the tube is clamped in position. The end stop 10 is mounted on a sliding rod 11 with, if desired, resilient means such as a spring 13 between the two members and the rod is connected to a cylinder 16 slidable on a stationary piston 17. When the tube engages the end stop, air pressure is admitted to the rear end of the cylinder 16 by the disengagement of a part 21 on the cylinder 16 from a fixed control-valve 22 and the kinetic energy of the tube is absorbed. As the cylinder moves, a switch or valve on it co-operates with a fixed projection to admit air to the front end of the cylinder and balance the pressures on the piston so that the tube and end stop are brought smoothly to rest. The engagement of the end stop with the abutment causes operation of air-operated clamping means and then an air cylinder 18 withdraws the abutment 15. Finally, increasing pressure in the front end of the cylinder withdraws the end stop by a small distance.
Patent GB-430190-A (GB)
Title: Improvements in or relating to pressure-reducing valves
IPC: G05D16/06
Filed: 1934-02-20
Abstract: 430,190. Pressure reducing valves. DEWRANCE, SIR J., 165, Gt. Dover Street, Southwark, London. Feb. 20, 1934, No. 5590. [Class 135] In a pressure reducing or regulating valve of the type in which the valve is opened by a spring 8 and closed by the pressure of the fluid on a flexible metallic bellows 10, the bellows is secured at its ends to a part of the valve body 1 and the valve actuating member 7 respectively, the ends fitting over coned surfaces 1<e>, 7b, and being secured thereto by coned clamping rings 13, 14. The clamping ring 13 is held in position by the casing 9 which carries an adjusting member 12 for the spring 8. The clamping ring 14 is secured by a screwed ring 14<a> and also serves as a piston member working in the casing 9 which can operate in the event of failure of the bellows. Communication between the low pressure side of the valve and the bellows chamber is effected through grooves 6d on the spindle 6 giving a dashpot action. The valve seating member 5 is of truncated conical form and is secured in position by a screwed ring 5d.
Patent GB-983770-A (GB)
Title: Improvements in hand-actuated fluid control valve devices
Inventor: BERTHOUD FERNAND
IPC: F16K31/58
Filed: 1963-02-12
Abstract: 983,770. Valves. ETABLISSEMENTS P. BERTHOUD. Feb. 12, 1963, No. 5605/63. Heading F2V. In a hand-operated valve, e.g. for agricultural sprayers, relatively axially slidable tubular members seat against each other to prevent flow and are separable by means of a handoperated lever pivoted on one of the members. Liquid supply tube 3 is connected to nipple 1 of a tubular member attached to cup 4, slidable within a socket 23 which is secured, by screws 19, upon member 11 connecting, via a tube 12, to the spraying nozzle and integral with a piston 13 slidably mounted in the bore of a sleeve 5 which is integral with the cup 4. Piston 13 is of slightly smaller diameter in the vicinity of ports 13n to slide within similarly constructed portion of sleeve 5 and carries a plastics washer 15 by means of attached cap 16 which is resiliently urged against valve seat 4a by spring 17. The socket 23 is slotted and the member 11 bifurcated into branches 18 to permit passage of the branches 21 of a bellcranked actuating lever 22, the arms of which bear against a wear plate 8 upon flange 6 to open the valve against the spring 17 and liquid pressure. The bell-crank lever is shaped so that the position of unstable equilibrium can be exceeded by full depression of arm 22 towards tube 12 to retain the valve open with the arm 22 released. Ribs 8b on wear plate 8 provide " feel " of the piston for intermittent operation.
Patent GB-349037-A (GB)
Title: The manufacture of ortho-nitro-aryl-arsinic acids
IPC: C07F9/70
Filed: 1930-02-19
Abstract: #s-Nitroarylarsinic acids are manufactured by diazotizing an #s-nitroarylamine in the presence of arsenious acid or a salt thereof, without the presence of a reducing agent, and with or without the presence of a soluble salt of an organic acid, and of an accelerator, viz. copper or its compounds, animal charcoal or kieselguhr.  In examples: (1) 2:4-dinitroaniline is diazotized in the presence of sodium arsenite, sodium acetate and kieselguhr or animal charcoal, yielding 2:4-dinitrophenyl-1-arsinic acid; (2) 4-nitro-2-acetylamino-1-phenol is treated with monochloracetic acid, the product is reduced, acetylated, nitrated and treated with sulphuric acid to produce 6-amino-7-nitro-3-hydroxy-1 : 4-benzisoxazine, which is converted to 7-nitro-3-hydroxy-1 : 4-benzisoxazine-6-arsinic acid by the process of Example (1) using animal charcoal as accelerator; (3) 3-hydroxy-1 : 4-benzisoxazine (phenomorpholone) is nitrated, reduced, acetylated and again nitrated, producing 6-nitro-7-acetylamino-3-hydroxy-1 : 4-benzisoxazine which is saponified and converted as in (2) to 6-nitro-3-hydroxybenzisoxazine-7-arsinic acid; (4) o-nitraniline is treated as in (1) but using copper sulphate as accelerator in the early stages and subsequently employing animal charcoal, to produce 2-nitrophenyl-1-arsinic acid.  A table gives the properties of the following compounds: 4-ethoxy-2-nitrophenylarsinic acid; 4-b -oxyethoxy-2-nitrophenylarsinic acid; 4-acetyl-amino-2-nitrophenylarsinic acid; 5-chloro-2 : 4-dinitrophenylarsinic acid; 2 : 5-dinitro-4-phenoxyacetic-1-arsinic acid; 5-nitro-benzoxazolone-6-arsinic acid; 6-nitrobenzoxazolone-5-arsinic acid.  The products are useful as intermediates for the production of synthetic drugs. Specification 142,947, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-705514-A (GB)
Title: Improvements in or relating to internal combustion engine generation of gases containing hydrogen
IPC: F02B23/08
Filed: 1951-03-08
Abstract: A gas containing carbon monoxide and hydrogen is produced by charging a hydrocarbon and a free-oxygen-containing gas into the cylinder of an internal combustion engine at 50-100 lbs./sq. in. gauge, further compressing and igniting the mixture and discharging the resultant products of partial combustion.  A cooling purging medium, e.g. air, carbon dioxide, methane, or, preferably, steam under pressure, <PICT:0705514/III/1> <PICT:0705514/III/2> is injected through manifold 22 and valve 18 in cylinder head 15 into cylinder 10, having piston 11 attached to a crankshaft (not shown), working on a four stroke cycle, before the gases resulting from the previous cycle are completely discharged. Methane or natural gas and gas containing over 80 per cent. O2, in O : C atomic ratio of 1.05 : 1-1.5 : 1, are then injected through manifolds 23, 21 and valves 17, 19 respectively. The methane and oxygen may be premixed or separately and simultaneously or sequentially charged to the cylinder; preferably at least a part of the methane is injected before the oxygen is admitted.  The mixture is compressed and ignited by spark plug 25 and the product gas is exhausted through valve 16 and manifold 20 at 40-100 lbs./sq. in.  The valves 17, 18, 19 may be shrouded with annularly disposed projections 26, 27, 28 to ensure turbulent mixing.  The methane and oxygen may be preheated to 300-600 DEG  F.  A minor proportion of the oxygen may be introduced in the immediate vicinity of the spark plug after compression of the mixture.  The process may also be worked on a two stroke cycle.
Patent GB-574715-A (GB)
Title: Improvements in or relating to charging of detonator shells with explosive
IPC: F42B33/02
Filed: 1943-04-08
Abstract: 574,715. Packing granular material. HERCULES POWDER CO. April 8, 1943, No. 5668. Convention date, Nov. 21, 1942. [Class 94 (i)] [Also in Group XXI] A device for charging fixed amounts of explosive simultaneously into shells or containers 20 comprises a shell supporting plate 22, a stationary charge releasing plate 7 having openings 8 opposite to the mouths of the shells, a stationary charge storing plate 9 having openings forming bins 10 which are charged from a reciprocatable hopper 11, and a metering plate 13 having openings 14, the plate 13 being reciprocable between fixed stop 17 and 18 to receive charges from the bins 10 and then to deliver the charges through the openings 8 into the shells. The planes 9 and 7 are faced with soft rubber 15, 16 to prevent pinching, and thereby detonation, of the explosive.
Patent GB-880262-A (GB)
Title: Improvements relating to dynamo electric machines
Inventor: DAVIES TREVOR HOLMES
IPC: H02K9/20
Filed: 1958-02-21
Abstract: 880,262. Cooling dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. May 15, 1959 [Feb. 21, 1958], No. 5679/58. Class 35. A dynamo-electric machine with salient poles mounted on a fabricated rotor 11 has a closed circuit cooling system in which water sprayed over the coils 14 cools them by vaporization, the vapour passing to a condenser 19 from which the water flows out under centrifugal force. The poles are keyed to a laminated ring 12 mounted on the rotor 11. The poles extend radially and the gaps between faces are bridged by non-magnetic members 16 which with non- magnetic members 17, 18 form an annular enclosure around the poles. Water flows radially from condenser 19 to nozzles 24 via pipes 20-23 and is sprayed into the spaces between the coils where it vaporizes. The vapour passes via tubes 25 to the condenser where it is cooled by water flowing down shaft 10.
Patent GB-223855-A (GB)
IPC: G03B19/18
Filed: 1924-03-05
Abstract: 223,855. Kaye, E. J., (Assignee of Petra Akt.-Ges. fiir Elektromechanik). Oct. 26, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 212,543. Kinematograph apparatus. - In apparatus according to the parent Specification, the displacement of the coupling sleeve is utilized for braking the film-carrying spool when the direction of drive is reversed. As shown, the coupling sleeve a is provided with a collar b having conical sides to engage a pin c. The pin c contacts with a lever e pivoted at d and carrying a friction disc f. When the sleeve a is moved, the, collar b lifts the pin c and brings the disc f into engagement with a friction disc g secured to the shaft h which drives the spool.
Patent GB-1461036-A (GB)
Title: Process and liquid for the catalytic sensitization of non- metallic surfaces for subsequent electroless metallization
IPC: C23C18/30
Filed: 1975-02-11
Abstract: 1461036 Electroless plating KOLLMORGEN CORP 11 Feb 1975 [22 Feb 1974] 5714/75 Heading C7F An insulating, e.g. plastres, surface is prepared  for electroless plating by contacting with a solution of a copper salt, e.g. chloride in HCl or hydride with pyridine as the solvent, rinsing with water and then contacting with a reducing agent, e.g. sodium hypophosphite, hychazine hydrate, formaldehyde or sodium boranate. Alternatively the reducing agent may be contained in the electroless plating solution. The copper salt solution may contain a wetting agent e.g. fluorinated hydrocarbon.
Patent GB-139500-A (GB)
Title: An improved resilient wheel
IPC: B60B9/20
Filed: 1920-02-25
Abstract: 139,500. Weston, M. T. Jan. 30, 1919, [Convention date]. Spring wheels with continuous outer rigid ring and pneumatic hubs ancl cushions.-Relates to spring wheels of the type described in Specification 105,569. The axle 1 carries a plate 2 with spaced segments engaging lugs 4 on a cylindrical member 5, 6 running on Timken-rollers 7. Mounted on the member 5 are pivots 10 carrying links 11. Each link 11 has pivoted to it at 14 levers 16, the other ends of which engage posts 18 mounted in a ring 19 forming part of the tread member. An outer ring 20 fits over and secures the other ends of the posts 18. Each pivot 14 carries a shoe or bearing member 22 having its lateral edges curved inwardly so that it has rolling contact with a. flexible band 23, and on each post 18 is mounted a cap 26 having lugs 30 to locate the flexible band. The band 23 bears upon a pneumatic tube 31 which is flattened transversely and is carried by flat arched seats 32 on the tread member. A plate 39 secures together the parts of the tread member, and is provided with a window 44 through which a pointer 45 on the hub may be observed. In a modification, the pneumatic member contacts directly with a solid outer rim.
Patent GB-563448-A (GB)
Title: Improvements relating to flash-welding
IPC: B23K11/04
Filed: 1943-04-12
Abstract: 563,448. Welding. RUBERY OWEN & CO.., Ltd., and COUPLAND, E. April 12, 1943, No. 5804. [Class 83 (iv)] In order to flash-weld articles such as the sheet metal pressings of propeller hubs, a part' of the article which is to be engaged by a contact block is first'sprayed with metal to effect a good electrical contact. The surface may first be cleaned by sand- or shot-blasting. The sprayed coating may be of a relatively, soft metal or alloy, such as copper, brass or bronze, which may be segregated from the weld zone in cases where the kind of steel is subject to copper penetration. The coating may alternatively be of ferrous metal, in which case the thickness is sufficient to allow of subsequent machining so that the surface fits the contact block. Any high spots may be flattened by rolling or buffing. After welding, the sprayed coating may be removed by polishing. The contact blocks may engage the part near an edge to be welded so that the step of clearing up the 'weld may also involve machining away the sprayed metal.