baber/WOPTO huggingface dataset:
Patent GB-743655-A (GB)
Title: Installation for mixing aeriform media
IPC: B01F23/10
Filed: 1952-11-17
Abstract: 743,655. Mixing gases in flow. BLACKMAN, Ltd., K., and TAVERNER, E. E. Oct. 7, 1953 [Nov. 17, 1952], No. 28906/52. Class 86. In an installation for effecting the admixture of aeriform media, incorporating an inlet conduit for each medium, a common conduit for the admixed media leading to a gas consuming device, and a pressure-loaded governor controlling the pressure in each inlet conduit, there is provided a gas relay sensitive to the pressure of the admixed media at a control point to control the loading of the pressure-loaded governors. In the arrangement of Fig. 6, air and gas entering at points A and G pass through pressure regulated governors 1 and 2 which are interconnected by a pipe 14 whereby the govern- or 2 maintains the same pressure in a gas pipe 15 as prevails in an air pipe 10. From the pipes 10 and 15 the air and gas pass through restrictions 18 and 19 which are set for a predetermined mixture ratio to a mixing point 4 and the resulting mixture passes into a header 5 which supplies a number of burners 6. The pressure in the pipes 10 and 15 is regulated to prevent changes of pressure in the header 5 due to variation in demand by the burners 6, this regulation being effected by employing a gas relay in the form of a pressure governor 25 to control the pressure in the compartment 7 of the governor 1. In the governor 25 a compartment 32 above a diaphragm 34 is connected to the header 5, and a compartment 29 below the diaphragm is connected to a source of constant pressure, which may be derived from an external source (not shown) or from the air supply A through a pipe 26 in conjunction with a dead weight valve 27, a restriction 28 and an outlet pipe 30. The movement of the diaphragm 34 due to changes in pressure in the header 5 are applied to a piston valve 35 to mask or unmask a port 37 in an air line 38, 40 taken from the air supply A, the variation in pressure in this line being applied to the compartment 7 of the governor 1 by a pipe 39. The valve 31 in the air outlets 30 and 40 may be manually or thermostatically adjusted to determine the actual pressure conditions existing in the header 5. The restrictions 18, 19 are formed as ports in a piston 17 of a piston valve 3 which is controlled by a diaphragm 16 having compartments 20, 21 on opposite sides connected to the pipe 10 and header 5 respectively. The movements of the diaphragm 16 are such that the pressure drop across the ports 18, 19 remains constant at a value determined by the loading of the diaphragm 16 by the weight of the piston 17. As alternatives in Fig. 6 the compartment 13 of the governor 2 communicates directly with the compartment 7 of the governor 1 instead of with the compartment 12. Again, the pipe 40 may be replaced by a vent 41 from the compartment 7. A modification developed from Fig. 6 is provided with one air inlet and three gas inlets each fitted with a pressure-loaded governor. An arrangement according to Fig. 5, (not shown), is similar to Fig. 6 but the governors 1, 2 and 25 are connected in a different manner.
Patent GB-1083943-A (GB)
Title: Improvements in control system
IPC: H02P23/00
Filed: 1965-07-08
Abstract: 1, 083, 943. Automatic control of turbines. GENERAL ELECTRIC CO. July 8, 1965 [Aug. 11, 1964], No.28969/65. Heading G3R. A control system for a turbine comprises a device deriving an error signal, representative of the deviation of an operating condition from a desired value due to a change in the steady state external demand on the turbine, a second device deriving the differential of the error signal and the time integral of the differentiated error signal and supplying the resultant integral signal to control a turbine valve, and a third device feeding back a portion of the integral signal to the input of the second device so as to adjust the deviation in the turbine operating condition corresponding to the steady state external demand on the turbine. As shown, a single extraction type turbine 1, driving a generator 2 and supplying steam through an extraction conduction 3 is controlled by an inlet valve 4 and an interstage valve 5. Turbine speed is sensed by an A. C. tachogenerator 6 and extraction pressure by a transducer 7. The signal from tachogenerator 6 is compared with a no load speed reference in a translator 8 and the error fed to a speed controller 14 to which a load compensation is applied from a device 9. The signal from the transducer 7 is compared with a pressure reference valve in a translator 11 and the error fed to a controller 13. The D. C. signals from the controllers are fed, as shown to operational amplifiers 19, 20, 21, the amplifier 21 being connected to invert the signal from controller 13. The output from summing amplifier 19 is a D. C. command signal representing a required position for the valve 5 which is positioned through summing amplifier 23, power amplifier 25 and servovalve 27 controlling a ram 29, feedback is derived through transducer 31 and demodulator 31a to an input of amplifier 23. The output from summing amplifier 20 similarly positions valve 4. In the controllers 13, 14, Fig. 2 (not shown), a pressure or speed deviation signal is applied to an R. C. network comprising a capacitor (36) and resistors (37-40). The resultant differentiated deviation signal is fed to the input of an operational amplifier (41) arranged to perform an integrating function by feedback through a capacitor (42). The resultant integrated differentiated-signal is fed to one of the servo controls for the turbine. and a portion, determined by resistors (44), (44a) (45) is fed back to modify the pressure or speed deviation signal. A rising pressure or speed/load characteristic is adjusted by potentiometer (40). an isobaric or isochronous characteristic by applying a direct voltage to a resistor (35a) and a drooping characteristic by adjustment of potentiometer (45).
Patent GB-1529992-A (GB)
Title: Anthracycline glycosides
IPC: C07H15/252
Filed: 1976-07-13
Abstract: 1529992 Daunorubicin derivatives SOC FARMACEUTICI ITALIA SpA 8 July 1977 [13 July 1976] 28985/76 Heading C2C Compounds of the general formula (R 1,3  = H, R 2  = H, halogen, Me, OMe; R 1 , 2  = H, R 3  = C 1-4  alkoxy; or R 2  = H, R 1  = R 3  = halogen, Me, OMe) and their 14-hydroxy derivatives and hydrochlorides are prepared by reacting the corresponding aglycone with 3,6-dideoxy - 2,4 - bis(p - nitrobenzoyl) - 3 - trifluoroacetamido - α - L - talohexopyranosyl bromide, followed by removal of the protecting groups and, optionally, bromination and hydrolysis and/or salt formation. The compounds are antimitotics.  The bromosugar is prepared by reacting 3- amino - 3,6 - dideoxy - L - talohexose hydrochloride with trifluoroacetic anhydride, removing the O-trifluoroacetyl groups, esterifying with p-nitrobenzoyl chloride and treating the product with hydrogen bromide.
Patent GB-1526517-A (GB)
Title: Amplitude limiting circuit for frequency modulated video signals
IPC: H03G11/06
Filed: 1976-07-13
Abstract: 1526517 Television NIPPON VICTOR KK 13 July 1976 [14 July 1975] 29047/76 Heading H4F A circuit for amplitude limiting a frequencymodulated video signal reproduced from a magnetic tape 11 so that inversion, in which "black" and "white" are inverted, is not produced in the reproduced picture on a television receiver set, comprises a high pass filter 16 for passing the high frequency component of the supplied FM video signal, means 19 for amplitude limiting and amplifying the output of filter 16, a low pass filter 17 for passing the low frequency component of the supplied FM video signal, an adder 20 for adding the output signals of means 19 and low pass filter 17, and an amplitude limiter 21 for amplitude limiting the output of the adder.
Patent GB-838988-A (GB)
Title: Improvements in or relating to polarised electromagnetic relays
IPC: H01H50/16
Filed: 1957-09-16
Abstract: 838,988. Electromagnetic relays. SIEMENS & HALSKE A.G. Sept. 16, 1957 [Sept. 14, 1956], No. 29084/57. Class 38 (5). A polarized relay has an armature 12 movable about its centre on the permanent magnet 6 or, as shown in Fig. 4, on an intermediate member between two permanent magnets 6a, 6b. In both arrangements the flux due to the energization of the relay coil is added to the permanent flux in the gap between the armature 12 and one pole 23 and opposes the permanent flux in the other such gap. Fig. 2 shows a modification with the armature and permanent flux circuit turned through 90 degrees with respect to that of Fig. 1. The magnet 6 is held by spring fasteners 8 between projections on a flux member 5 which has its ends separated from the operating coil yokes 3 by non-magnetic spacers 9 which also support the assembly on a base 11 to which the metal case 22 is sealed by soldering. A torsion wire 13 is fixed to the armature 12 and taken through a hole 14 in the base 11 so that the armature position can be adjusted before the hole 14 is sealed. Contact-pins 15 for contacts and coils are sealed in the base 11 by glass beads 16, and the moving contact wire springs 17 are mounted on pins 15 and engage the armature 12 so as to move between fixed contacts 18, 19 on other pins 15. The armature may be retained in position by the permanent magnetism alone or by wire clips, spring mounting strips, leaf-springs, wire springs or bya sheet of material embracing the armature, magnet and flux member (Figs. 5 to 10, not shown).
Patent GB-447046-A (GB)
Title: Method for the wireless transmission of television images
IPC: H04B1/08
Filed: 1934-10-11
Abstract: 447,046. Valve modulating circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Oct. 11, 1934, No. 29092. Convention date, Oct. 11, 1933. [Class 40 (v)] In a wireless transmitter of television signals, high-frequencies are prevented from reaching the low-frequency lead 1 by a neutralizing arrangement 7, 8 in the grid circuit of the modulating-valve 13. The rotor 7 of the differential condenser is connected to the junction of the low-frequency lead 1 and the secondary 11 of the high-frequency transformer in the grid circuit. The effect is enhanced by a choke 14 and condenser 9. The part capacities of the differential condenser are so large (about 5 cms.) that their reactance is negligible compared with the loads connected to the rotor, i.e. the choke impedance and the capacity to earth. A pentode is used as the modulating valve and is neutralized by a special circuit. The anode circuit is tuned to a higher frequency so that the valve acts as a frequency multiplier. According to a modification the differential condenser is connected only to the secondary coil or to its extensions beyond a vertical earthing point, Fig. 2 (not shown).
Patent GB-170759-A (GB)
Title: Improvements in rivet cutters
IPC: B25D9/08
Filed: 1920-10-18
Abstract: 170,759. Rice, A. G. Oct. 18, 1920. Separating riveted joints by cutting. - The hammer piston 24 of a rivet-breaker is moved in both directions by pressure fluid, under the control of a hand-operated plug valve 8, which is turned as required to admit fluid to the rear end of the cylinder through a port 6 or to a conduit 22 leading to the forward end of the cylinder, the other end being in each case simultaneously opened to exhaust. The valve passage is formed with a curved wall 8<11> to facilitate the flow of fluid, and the conduit 22 contains an adjusting- valve 23. Springs are mounted at both ends of the cylinder.
Patent GB-628582-A (GB)
Title: Method of and apparatus for forming pattern decorations on pile-surfaced fabric
IPC: D06N7/04
Filed: 1946-10-02
Abstract: 628,582. Coated fabrics. BEHR-MANNING CORPORATION. Oct. 2, 1946, No. 29434. Convention date, Oct. 8, 1945. [Class 140] [Also in Group IX] A patterned pile fabric is made by coating a backing 12 with adhesive 11 and passing it through an electrostatic field 15 where it receives a uniform erect covering of pile fibres 17 from a conveyer 19; the fabric then passes over air jets 25 whereby at least some of the fibres are tilted before the adhesive hardens (or after resoftening it). The jets may be reciprocated across the fabric and may play continuously or intermittently, or air may be directed through a slit to incline all the fibres in the same direction, or through two slits arranged in a vee to incline them oppositely on opposite sides of a centre line. Or a drum covered by a stencil, or radial arms carrying nozzles, may be rotated under the fabric to " print " patterns thereon. The air pressure may be sufficient to expose the adhesive so that the colour of the adhesive or of the backing is visible, and may be sufficient to reduce the thickness of the adhesive to produce hinge lines in the fabric; a secondary covering of shorter and/or differently-coloured fibres may be applied to the thinned adhesive. The pile,. together with the adhesive layer, may be stripped from the backing and applied to another backing.
Patent GB-299420-A (GB)
Title: Improvements relating to inducing the flow of air and other gases
IPC: F01N5/00
Filed: 1928-10-12
Abstract: 299,420. Chevalley, J. Oct. 26, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Generating combustion products under pressure.-Exhaust gases resulting from combustion or explosion are used to induce the flow of and compress air or other gas. Exhaust flowing out of a pipe 12 enters a casing 42 and induces a flow of air which follows the path of the arrows 7; the exhaust flows through the casing 42 in the direction of the arrows 6. As shown two such injectors are used in series, the air from the casing 42 flowing through the pipes 10 to the inlets of a second injector 4, which receives the hottest exhaust gases. The device may be used to supply scavenging air for Diesel engines or air to the carburettor of explosion engines. In an apparatus for generating products of combustion under pressure the injector may be used to supply both the air and gaseous fuel. After leaving the injector the gases may be used to drive a turbine. The injector may supply air only, liquid or powdered fuel being supplied to the combustion chamber.
Patent GB-1280563-A (GB)
Title: Preparation of ethyleneoxide alcohol adducts
Inventor: SOSIS PAUL
IPC: C08G65/28
Filed: 1970-06-18
Abstract: 1280563 Ethylene oxide adducts of alcohols CONTINENTAL OIL CO 18 June 1970 [18 June 1969] 29663/70 Heading C3R [Also in Division C2] An ethylene oxide alcohol adduct having reduced wetting time characteristics is prepared by reacting ethylene oxide with a C 8-18  saturated aliphatic monohydric primary alcohol in the presence of 0À1 to 0À5 weight per cent of water based on the quantity of alcohol used. The reaction may be carried out in the presence of a conventional acid catalyst to give a product containing 3À9 to 9À7 moles of ethylene oxide, and this product may be further ethoxylated in the presence of a conventional basic catalyst to give a product containing 57 to 61 weight per cent of ethylene oxide. An example describes the two-stage ethoxylation of a mixture of C 10-14  alcohols. Uses.-As surfactants for treating textiles.
Patent GB-394546-A (GB)
Title: Improvements in or relating to roller mills
IPC: B02C4/32
Filed: 1932-10-24
Abstract: 394,546. Roller mills. BUHLER BROS., Uzwil, Switzerland. Oct. 24, 1932, No. 29694. Convention date, Dec. 28, 1931. [Class 59.] In a roller mill the thrust for pressing the movable roller against the counter roller is applied at a single position in a balanced lever system so that the thrust is transmitted to both bearings at a uniform ratio in all positions of adjustment of the system. As shown in Fig. 1, the journals 3 of the movable roller 4 are each fixed on a lever 6 pivoted at 5, the free ends of the levers being connected by links 7 to the ends of levers 8 pivoted at 9, the other ends of the levers 8 being connected by a link 10 to a spring 11. In a modification one link 7 is connected to the lever 8 between the pivot 9 and link 10 and the free ends of the levers 8 are connected by a spring. The links 7 may be connected to arms cranked at 180‹, the intermediate portion of the arms being a torsion spring. In the modification, shown in Fig. 4. the links 7 are connected to spring- connected cranks 19 pivoted at 20 on a forked member 22, 23, 24, the part 22 being pivoted and the part 24 forming a latch by the release of which the roll 4 is moved apart from the fixed roll 1.
Patent GB-325529-A (GB)
Title: Improvements relating to the manufacture of cod-liver oil and like oils and apparatus employed in such manufacture
IPC: C11B1/00
Filed: 1928-10-15
Abstract: 325,529. Fowler, C. Oct. 15, 1928. Fatty oils, extracting.- In apparatus for the extraction of cod-liver and like oils by cooking in an atmosphere of steam, the extracted oil is removed by a draw-off device. In a suitable apparatus, the cleaned livers in a tank 1, Fig. 1, are agitated by a stirrer 4, and treated with steam admitted through a valve 14 and a pipe 8 from a steam generator 6. When cooking is complete the contents are allowed to settle, and the supernatant layer of oil is drawn off by one or more devices 5, and passes through a pipe 13 and a filter 12 to the barrel 10, each of which is filled with steam passing through a valve 15 and a pipe 9 &c. The draw-off device may comprise (1) an inner tube 21, Fig. 2, having a hole 24, which may be lowered by a screwed rod 125, to coincide with the slot 23 in the outer tube 20 at oil level; (2) a single tube 25, Fig. 3, having a hole 26, and passing through a gland 27, (3) a compartment mounted vertically alongside the tank containing the oil and separated therefrom by a gate adapted to slide vertically, and through which the oil is drawn off, or (4) a flexible tube 31, Fig. 6, attached to a funnel 32, and connected to floats 33 which maintain the entry orifice just below the surface of the oil. The latter device may be used in pivotally or flexibly mounted extraction apparatus such as is shown in Fig. 6, and used in floating factories. A filter screen may be provided at the entry to the draw off devices.
Patent GB-793425-A (GB)
Title: N:n-bis[(1-nitrocycloalkyl)methyl] alkylene diamines
Filed: 1956-10-01
Abstract: N,N1-bis-[(1-nitrocycloalkyl) methyl] alkylene diamines are prepared by mixing together a nitro cycloalkane, formaldehyde and an alkylene diamine.  A catalyst may be present.  Suitable catalysts are inorganic or organic bases, e.g. quaternary ammonium compounds, alkali metal hydroxides, alkaline earth metal hydroxides and anion exchange resins.  Water-soluble bases may be added in aqueous or alcoholic solution.  A mutual solvent for all the reactants is preferably present, e.g. methanol, ethanol, isopropanol and the reactants are preferably present in stoichiometric amounts, although more than the stoichiometric amount of formaldehyde may be used.  The reaction may be carried out at temperatures between the freezing and boiling points of the mixture under pressure.  Examples are given of the preparation of N,N1-bis-[(1-nitrocyclohexyl) methyl] hexamethylene diamine, N,N1 - bis - [(1 - nitrocyclohexyl) methyl] 2 - hydroxy - 1,3, propylenediamine, and N,N1-bis-[(1-nitrocyclohexyl) methyl] ethylene diamine. The dinitro compounds of the invention may be separated out by adding hydrochloric acid at the completion of the reaction and neutralizing the precipitated dihydrochloride salts. They may be further purified by recrystallization from a suitable solvent, e.g. diethyl ether.  Other nitrocycloalkanes and other alkylene diamines may also be used, e.g. nitrocycloheptane, nitrocyclopentane and pentamethylene diamine.  The process may also be carried out continuously by adding the reactants continuously in such a manner that stoichiometric amounts of the reactants are maintained in the reaction zone, and the reaction product continuously removed from that zone.
Patent GB-1236176-A (GB)
Title: Improvements in or relating to a mobile appliance
Inventor: KAISER JOSEF
IPC: E02F9/08
Filed: 1969-06-12
Abstract: 1,236,176. Earth working. J. KAISER. 12 June, 1969, No. 29843/69. Heading E1F. Earth working apparatus comprises a chassis 1 which rotatably carries a superstructure 2 with a jib 3 for an excavator scoop or other implement and which is supported by a pair of arms 4 or 5 at each end, arms 4 having support legs 6 and arms 5 having driveless wheels 7, with each arm being pivotably adjustable in a vertical plane independently of th other arms. Each arm is independently supported by tubes 24, 25 rotatably and axially movable in bearing tubes extending transversely of the chassis. Jacks 8 and/or telescopic rods 9, 10 hold the tubes 24, 25 in the desired rotatable position while adjustable tie rods secure each tube 24, 25 in the desired transverse position. Each arm 4 is pivoted at 35 to flange 31 of tube 24 and has a bolt 33 extending through one of three spaced bores in the arm and through a bore in the flange, to allow pivotal adjustment in a horizontal plane of each jib arm relative to tube 24. Arms 4 may also have wheels 7 or arms 5 may also have legs 6. (For Figure see next page)
Patent GB-1253898-A (GB)
Title: Microstrip directional coupler
Inventor: CHUA LYE-WHATT
IPC: H01P5/18
Filed: 1969-06-13
Abstract: 1,253,898. Directional couplers. MULLARD Ltd. 22 May, 1970 [13 June, 1969], No. 30058/69. Heading H1W. A 4-port directional coupler comprises a dielectric strip 5 bearing conductive patterns A and B one on each side, each pattern having a central coupling portion, the one wider portion overlying the other and each being of the same length equal to an odd number of quarter wavelengths at the mid-band frequency, and a dielectric substrate 6 which supports the strip on one face and has a conductive coating 7 on its other face. The coupling between the central portions may be varied by varying the width of one portion. The dielectric strip 5 may be of mica and the substrate 6 of alumina. Dimensional data are given.
Patent GB-232887-A (GB)
Title: An improvement in the construction of infants' cots and playgrounds
IPC: A47D13/06
Filed: 1925-03-06
Abstract: 232,887. Hudson, G. J. Samms-. March 6, 1925. Folding bedsteads.-A folding cot, convertible into a play-pen, comprises sides a, band c hinged together, and a bottom d held in place by dowels g. The side c is in two parts, held in position by clips e, and the bottom d carries hinged folding legs f. To convert the cot into a play-pen, the parts of the side c are opened out into line with the sides b, the bottom d then being used to form the fourth side.
Patent GB-1236796-A (GB)
Title: Method of welding metal parts or weld cladding at least one metal part
Inventor: GORBUNOV GEORGY VASILIEVICH
IPC: B23K28/02
Filed: 1968-06-25
Abstract: 1,236,796. Welding by fusion. INSTITUT ELEKTROSVARKI IMENI E.O. PATONA. 25 June, 1968, No. 30136/68. Heading B3R. In build-up or seam welding the electrode 1, which may be consumable or non-consumable, is brought into contact with the work, electric current is passed to form a pool of metal, the electric circuit being maintained between the electrode and the work by the pool of metal, and the electrode is moved relative to the work to deposit a layer of metal or to weld a seam while the pool is maintained by resistanceheating in the area of electrode-work contact. If the electrode is non-consumable it may be of e.g. niobium, tungsten, molybdenum or metalloceramics, and a filler wire may be fed into the melt. The workpiece(s) may be stainless steel, the joints may be lap or butt, and welding may take place in vacuo.
Patent GB-1452437-A (GB)
Title: Elongate frame member to be mounted on a door
IPC: E06B7/14
Filed: 1974-07-08
Abstract: 1452437 Window drainage FABER BV 8 July 1974 30140/74 Heading E1J An elongate frame member to take the lower edge of a pane or panel 2 to be mounted in a door 13 has a channel 1 and a gutter 3. The gutter has drainage holes 6 leading to a pressure equalisation chamber 5 beneath the gutter and the channel. The bottom 7 of the chamber slopes towards the outside of the door and the front wall 8 of the chamber leaves a gap 10 which is clear for the full length of the member. A horizontal fixing flange 12 is provided. The pressure equalization chamber prevents draughts blowing the condensate water back.