baber/WOPTO huggingface dataset:
Patent GB-1253893-A (GB)
Title: Liquid-heating or steam generating apparatus
IPC: A47J31/54
Filed: 1969-04-02
Abstract: 1,253,893. Electrode boiler. SOC. "ERIKA." 2 April, 1969 [3 April, 1968], No. 17151/69. Heading H5H. An electrode boiler comprises a vessel A, B, C; a water inlet pipe E and an outlet pipe F in the cover B of the vessel; two " submerged " electrodes L, C at the lower part of the vessel and connected to terminals I, J respectively; and a perforated grid M electrically connected to one of these terminals and positioned between the upper electrode L and the orifices of the pipes E, F to completely screen the orifices from scale rising from the electrodes. The cover B may be completely isolated from the supply circuit or may be the same polarity as the grid. The pipe F which supplies steam to a receptable R containing liquid to be heated terminates in a check valve N biased closed by a strong spring. Thus when the supply of steam is terminated valve N closes and prevents liquid being sucked into the pipe F. An air supply valve O biased closed by a weak spring and included in the water supply pipe allows air to enter the vessel AB, C when the steam pressure is reduced so that the difference in pressure between the water supply and the boiler is reduced and prevents ramming. In Fig. 2 (not shown), the vessel comprises two cup-shaped parts electrically connected and mechanically sealed together. The perforated particle filtering grid is electrically connected to and trapped between the cup-shaped parts. The other electrode is mounted on a rod projecting through and insulated from the base of the vessel.
Patent GB-174562-A (GB)
Title: Improvements in controlling means for water turbines
IPC: F03B15/18
Filed: 1921-06-23
Abstract: 174,562. Leffler, C. Jan. 24, 1921, [Convention date]. Addition to 165,101. Regulating.-Consists in alternative mechanisms for disconnecting the closing apparatus of the turbine guide-vanes from the driven shaft just prior to the completion of the closing movement as described in the parent Specification. In the construction shown in Fig. 1 the governor q, when an excessive turbine speed obtains, releases a weighted rod v<1>, a pin on which engages a guide-slot w on a belt-shifter x and so shifts the belt from a pulley r to a pulley s on a shaft f. This shaft drives the gearing h, i, and a worm 1 which rotates a sector m closing the guide-vanes; the shaft f is threaded and a nut f<2> thereon travels to the right-hand on the rotation of the shaft and by means of an arm f<3> on the nut returns the belt-shifter to its original position with the belt on the pulley r. Fig. 2 shows a construction wherein the worm shaft k is driven by projections o on the hub i' of a spur-wheel i engaging corresponding recesses on the shaft k; the the hub i<1> is internally threaded and mounted on a fixed threaded shaft k<1> so that the spurwheel i disengages from the shaft k after a certain number of revolutions when the guide-vanes are on the point of closing.
Patent GB-1105563-A (GB)
Title: Catalyst preparation
Inventor: HOWMAN ERIC JAMES
IPC: B01J37/02
Filed: 1965-04-23
Abstract: Acyclic olefins are disproportionated in the presence of a catalyst made by impregnating Al2O3 with a solution of rhenium heptoxide, Re2O7, in an inert organic solvent selected from C1- 4 alcohols, ketones or ethers, dioxan or tetrahydropyran, and removing the solvent.  Specified alkenes are propylene, butenes-1 and 2, 1-2, pentenes, hexenes-1, -2, -3, heptenes-1, -2, -3, and octenes 1-2.  In an example, butene-1 is disproportionated at 40 DEG  C., and GHSV of 4000 yielding ethylene, propylene, pentenes and hexene-3.ALSO:Disproportionation catalysts consisting of Re2O7 or Al2O3 are prepared by impregnating Al2O3 with a solution of rhenium heptoxide Re2O7, in an inert organic solvent selected from C1-4 alcohols, aliphatic ketones and ethers having up to 4 carbon atoms, dioxan or tetrahydropyron, and removing the solvent.  The catalyst may be activating by heating in air and/or inert gas.  In example g -Al2O3 of surface area 250 m2/gm. and pore volume 0.37 cc./gm. is impregnated with Re2O7 in MeOH or dioxan.
Patent GB-1236082-A (GB)
Title: A system of overload protection by using superconducting conductors
IPC: H02H7/00
Filed: 1968-04-10
Abstract: 1,236,082. Arcing preventing in switches. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 10 April, 1968 [10 April, 1967], No. 17320/68. Heading H1N. [Also in Division H2] An overload protective arrangement for A.C. or D.C. apparatus, machines or feeder circuits which may be superconducting, comprises a superconducting element D to which a magnetic field is applied when a fault occurs so that the element D becomes normallyconducting and limits the excess or shortcircuit current. The magnetic field is provided by a coil Sp surrounding the element D, the coil being energized when the fault current reaches a predetermined magnitude or has a predetermined rate of rise. As shown, a spark gap is triggered by the current induced in the secondary winding W 2  of a current transformer and permits a charged capacitor C to discharge through the coil Sp. A main circuit-breaker S is opened to interrupt the residual current through the element D, this circuit-breaker closing its auxiliary contacts HS so that the capacitor is recharged from a battery B. A thyristor may be used instead of the spark gap, Fig. 13 (not shown); and an iron wire resistor may be connected across the superconducting element D, Fig. 11 (not shown).
Patent GB-478737-A (GB)
Title: Improvements in machines for the manufacture of glass articles
IPC: C03B9/18
Filed: 1936-06-23
Abstract: 478,737. Glass manufacture. PEARSON, T. F. June 23, 1936, No. 17381. [Class 56] Relates to glassware-forming machines of the kind in which charges of glass are dropped into inverted parison moulds. According to the invention a funnel 22 for guiding the glass charges into a parison mould 11, and a baffle plate 24 for closing the open end of the mould, are both mounted on a hollow slide member 12 which is used for conveying pressure air to the finishing mould as described in Specification 466,575. The slide member 12 is moved radially, as the mould table of the machine rotates, so as to bring the funnel and the baffle plate successively over the parison mould and then into position to bring the open end 17 of the member over the finishing mould 10. The baffle plate 24 is attached resiliently to the slide member 12, and is depressed by a cam 29, fixed to the stationary frame of the machine, to close the cavity of the mould 11 during the counterblowing period. Specification 467,452 also is referred to. According to the Provisional Specification, the baffle plate and the funnel may be mounted on an auxiliary slide which is guided on the main slide 12 and is actuated by one or more auxiliary cams on the stationary frame of the machine.
Patent GB-691893-A (GB)
Title: Machine for loading materials of the type adapted to throw such materials longitudinally over the machine
IPC: E02F3/64
Filed: 1951-07-23
Abstract: 691,893. Scraping apparatus. MALO, J. H. July 23, 1951, No. 17442/51. Class 68(i) [Also in Grcup XXX] In a loading machine of the type adapted to throw material longitudinally over itself a bucket is carried by a yoke pivotally mounted on a fixed axis on a pair of track frames, and is moved through a relatively short arc by a pair of lever mechanisms each of which consist of a long and a short arm connected together by one of their ends, the free end of the long arm being pivotally connected with the yoke while the other end of the short arm is pivotally connected to the respective side frame, and power means being connected to each said short arm, self-dumping of the bucket being assured in spite of the short arc of travel by said bucket having its floor and rear wall inclined relatively to one another at an angle of 103-113 degrees. The track frame 5 of a tractor 1 has mounted on it a pair of triangular frames 9 each pivotally supporting a fluid cylinder 18 on an axis 17, a bell-crank assembly, consisting of a long arm 21 and a short arm 20 fixed together and pivotally mounted on an axis 22, and a boom 29 pivotally mounted on an axis 30 The two booms are interconnected to form a yoke supporting a scoop 27 having bottom and rear walls 32, 33 arranged at an angle of 103-113 degrees with respect to each other. The scoop is pivotally mounted at.35 on the yoks and is adjusted angularly by an adjustable link 37. The yoke is swung by the cylinders 18 whose pistons are each connected to a pin 26 on one of the bell-crank assemblies, which are each in turn connected by a link 31 to the yoke. The length of links 31 is preferabl slightly greater than the distance between axes 22 and 30, while each arm 21 is three times as long as each arm 20 and at least half the length of each boom 29. This arrangement gives a total swing of the yoke of 125‹ rendering scoop 27 self-dumping, and also allows a downward movement of the yoke and scoop to digging position.
Patent GB-130590-A (GB)
Title: Improved Manufacture of Imitation Hemp.
Inventor: NISHIMURA HEIJIRO
IPC: D06M15/11
Filed: 1919-07-11
Abstract: 130,590. Nishimura, H., (Assignee of Honda, T.). July 27, 1918, [Convention date]. Liquids, treating with.-Elastic imitation hemp is produced by treating cotton fabrics &c. with tannic acid after they have been coated with konnyakunori, a size or paste made from the root of konnyaku (hydrosme rivieri). The material so treated may be given a translucent lustre by boiling it in a solution of sodium stannate or sodium silicate. The action of tannic acid on konnyaku produces a white elastic precipitate which has a mordanting property for basic dyestuffs, so that material treated therewith needs no mordant when dyeing with such dyestuffs.
Patent GB-1281605-A (GB)
Title: Antibiotic am374 and production thereof
Inventor: KUNSTMANN MARTIN PAUL
IPC: A23K20/195
Filed: 1970-04-13
Abstract: 1281605 Antibiotic AM 374 AMERICAN CYANAMID CO 13 April 1970 [14 April 1969] 17470/70 Heading C2A The novel antibiotic AM 374 having the following characteristics: Analysis: C = 54À54%, H=6À10%, O=29À01%, N=7À60%, and Cl=2À47%; Melting point indefinite, decomposing above 250 C.; Optical rotation, [α] D <SP>25</SP> = - 1022À9 degrees (C= 1À045 in water); U.V. maxima, in acidic solution = 282 mÁ (E<SP>1%</SP> 1cm. =42); in neutral solution = 282 mÁ (E<SP>1%</SP> 1 cm  = 42À5); in basic solution = 305 mÁ (E<SP>1%</SP> 1 cm.  = 51À5) and 260mÁ (shoulder) (E<SP>1%</SP> 1 cm.  = 92); I.R. absorption peaks at 3À0, 3À45, 6À0, 6À2, 6À3, 6À67, 6À88, 7À05, 7À22, 7À35 (shoulder), 7À52, 7À67, 8À2, 8À65 (shoulder), 8À85, 9À45, 9À75, 9À90, 1045, 1107, 11À5, 12À0, 12À35, 13À35 and 14À4 Á, as shown in the drawing and being readily soluble in water and dimethylsulphoxide, sparingly soluble in ethanol, and moderately soluble in methanol, is prepared by aerobically cultivating Streptomyces eburosporeus NRRL 3582 or an AM 374-producing strain thereof, in aqueous nutrient medium. The antibiotic is isolated from the filtered medium by adsorption on charcoal, eluting therefrom with 40% aqueous acetone brought to pH 2À0 with H 2 SO 4 , concentrating the eluant and removing the sulphuric acid by precipitation with barium hydroxide and adsorbing the antibiotic from the filtered solution on acidified alumina. It is eluted with 25-50% aqueous methanol, concentrated and lyophilized to give a crude product. This may be purified by adsorption on ion-exchange resin, elution with dilute sulphuric acid and removal of the latter with barium hydroxide, after which the pH is brought to 8À0 and the pure antibiotic is precipitated by addition of acetone, filtered off and dried. The antibiotic may be converted to its acidaddition salts, e.g. the sulphate or chloride. By treatment with boiling aqueous hydrochloric acid, AM 374 is converted to an antibiotically active hydrolysis product, characterized by: Analysis: C=62À54%, H=5À81%, O= 25À52%, N=8À32% and Cl=7À11%; Optical rotation, [α]<SP>25</SP> D  = - 693À6 degrees (C=0À839 in water) and I.R. absorption peaks at 3À0, 3À3 (shoulder), 3À43, 5À75 (shoulder), 5À92 (shoulder), 6À0, 6À15 (shoulder), 6À25, 6À48 (shoulder), 6À68, 6À85, 7À03, 7À18, 7À5, 7À67, 7À95 (shoulder), 8À3, 8À55 (shoulder), 8À86, 9À15, 9À45, 9À9, 10À45 (shoulder), 11À1, 11À55 (shoulder) 11À9, 13À3 and 14À4 Á. Antibiotic AM 374, its salts and its hydrolysis product may be incorporated into animal feedstuffs or pre-mix concentrates therefor. Pharmaceutical compositions for oral or injectable administration comprise antibiotic AM 374, its non-toxic salts or its hydrolysis product together with a pharmaceutical excipient or carrier.
Patent GB-872934-A (GB)
Title: A multi-stage direct voltage cathode follower amplifier
IPC: H03F3/36
Filed: 1959-05-22
Abstract: 872,934. Valve amplifying circuits. TESLA, NARODNI PODNIK. May 22, 1959 [May 24, 1958], No. 17511/59. Class 40(6) A multi-stage direct-voltage cathode-follower amplifier has its zero stabilized by means of a mechanical modulator and a subsidiary A.C. amplifier controlling a compensating valve in the main amplifier. The main direct-voltage amplifier comprises stages El, E3, E4 direct-coupled by capacity-compensated resistance voltage dividers, and also compensating valve E2 cathodecoupled to the input valve El. The output is taken from the common cathode circuit of stages E3, E4, a potentiometer comprising resistors R2, R3 and voltage-stabilizing tubes S1, S2 being connected across the power supply to stabilize the voltages on the anode and grid bias lines for the valves E1-E3 with respect to the cathode potential. The subsidiary A.C. amplifier comprises stages E5, E6; its input is as shown, connected via resistors Rl, R4, R5 to the input of the main amplifier but whenever contacts a, c of the mechanical modulator M are closed its input is connected instead to the output of the main amplifier. Any deviation of the output voltage of the main amplifier from the input voltage results in a square wave being applied to the input of the subsidiary A.C. amplifier. The amplified square wave at the output of stage E6 is fed via condenser C3 and smoothing network C4, R7 to the grid of the compensating valve E2, being clamped with respect to the output voltage by means of contacts b, c of the mechanical modulator.
Patent GB-1286419-A (GB)
Title: Radar antenna support and drive assembly
IPC: H01Q25/04
Filed: 1971-05-27
Abstract: 1286419 Aerials WESTINGHOUSE ELECTRIC CORP 27 May 1971 [30 June 1970] 17522/71 Heading H4A A radar aerial support and drive assembly comprises a fixed pedestal part 13 which is adapted to be mounted atop a tower 35, a main-support ball bearing removably mounted on the top of the said fixed pedestal part, a bull-gear 16 mounted on said ball-bearing, a rotary pedestal part 5 having a removable central top cover member 6 removably secured to said bull gear, and a mounting frame 1, for a feed horn 2 and a reflector 3, which is secured to the rotary pedestal part so that removal of the cover 6 is not impeded. The assembly also comprises a pair of drive means, removably secured to the fixed pedestal, and including pinions engaging diametrically opposite points of the bull gear, and means for supporting and locking the rotary pedestal part during removal of its top cover member 6. The mounting frame 1 includes side members 8 spaced apart on opposite sides of the part 5, and attached by means allowing the attitude of the frame to be adjusted relative to the azimuthal axis 4, for determining the elevation angle of the beam (Fig. 1, not shown). A waveguide feed 10 for the horn 2 is disposed along the axis 4, and is provided with a rotary joint 26. The top cover member 6 of the rotary pedestal part 5 is secured by screws 7, and the bull gear 16, which also constitutes the outer race of the main support ball bearing, is secured to the said cover member by screws 23. The inner race 17 of the ball-bearing fits over a cylindrical surface 14 to an annular shoulder 12, which are provided in the fixed pedestal part 13, and it is secured by screws 20. Pinions 40 mesh with the gear 16 and are driven by electric motors 41 through speed reducing mechanisms 42 and self-aligning assemblies 46, which include universal joints 43, 44. An annular well is provided so that the gear 16 and the pinions 40 can be immersed in lubricating oil 62. The fixed pedestal part 13 has mounting brackets 32 by means of which it is bolted to the top of the tower 35. Studs 34, carrying nuts 36, 39, engage in threaded holes in the brackets 32 and are normally screwed down so that they clear the flange 31 of the rotary pedestal part 5. When it is desired to lock the part 5, holes 37 in the flange 31 are aligned with the studs 34, the nuts 36 are removed, the studs 34 are screwed up and through the flange 31, the nuts 36 are replaced and they, and the nuts 39, are tightened against the said flange.
Patent GB-455517-A (GB)
Title: Improvements in arch supports for use in footwear
IPC: A43B7/22
Filed: 1935-06-18
Abstract: 455,517. Foot-arch supports. HOLLOWAY, A. E., Deswell, Warren Road, Worthing. June 18, 1935, No. 17525. [Class 17 (ii)] A foot-arch support comprises a body part of sponge rubber having a flat upper face, a part ellipsoidal protuberance on its lower face integral therewith, and an outer airtight skin moulded or otherwise permanently secured on the body part so as to enclose it. The support may comprise a whole sock, a sock minus the toe portion, Fig. 2, or only a small piece of sponge rubber tapered at its edges, Fig. 1, the protuberance 2 being provided on the lower surface and a layer of felt 3 on the upper. An airtight skin 4 encloses the sponge rubber. One or more holes may be formed in the support. Specification 406,529 is referred to.
Patent GB-221311-A (GB)
Title: Improvements in or relating to the extraction of liquids from paper pulp, sewage sludges and the like by means of suction
IPC: D21F1/48
Filed: 1923-07-06
Abstract: 221,311. Huebner, J., and Ardern, E. July 6, 1923. Moulding pulp.-An endless travelling band of impervious material is arranged to form a substantially air-tight cover for paper pulp or like material as it travels over a suction or vacuum box or drum. The arrangement is shown as applied to a Fourdrinier machine with wire 3 and suction boxes 4, 5, 6. A band 7 of waterproof fabric passes round rollers 8, one or more of which may be driven. The band is of greater width than the layer of pulp and the openings of the boxes. The boxes may be fitted with adjustable false ends so that their width may be adjusted. The arrangement is applicable to cylinder and board machines and to revolving suction filters. The surface of the band which makes contact with the material may be formed so as to mould patterns or designs thereon, or it may be covered with rubber or aluminium, with woollen, cotton, asbestos or other fabric, or with wire gauze.
Patent GB-1138185-A (GB)
Title: Improvements in and relating to gun turrets
Inventor: VICKERS ROY GILBERT
IPC: F41A23/24
Filed: 1965-04-26
Abstract: 1,138,185. Gun turrets. BREVETS AERO-MECANIQUES S.A. 25 Feb., 1966 [26 April, 1965], No. 17544/65. Heading F3C. A gun turret comprises a rotatable cupola 1 having a gun port 14 in which a gun cradle 17 is mounted about an elevation axis X on a pair of trunnions 16. The port 14 is closed by a cylindrical armoured mantelet 23. The major part of the cradle 17 is housed outside the cupola and thus a counterbalancing device is provided in the form of an hydraulic piston and cylinder device 24 which is also used for laying the gun in elevation. The turret is rotatable in azimuth by means of a motor 8 with a pinion 7 co-operating with gear teeth 6 of the turret. Ammunition is fed to a feed housing 33 on the gun cradle 17 through a port arranged on the elevation axis X, in the cupola and an ammunition shoot extending in a curved path from the port to the feed housing (Fig. 3, not shown). The belted ammunition is fed through the shoot by guide sprockets located towards the inside of the bend of the shoot. A mantelet is provided between the end of the shoot and the ammunition port. The cupola is further provided with windows (9, not shown), doors 10, (11) and four types of sighting devices (Fig. 2, not shown). The rear end of the gun cradle has a door accessible from inside the cupola to give access to a gun in the gun cradle.
Patent GB-1437861-A (GB)
Title: Preheater for preheating a web in a corrugating machine
IPC: B31F1/20
Filed: 1974-04-22
Abstract: 1437861 Feeding webs HARRIS-INTERTYPE CORP 22 April 1974 [26 June 1973] 17581/74 Heading B8R [Also in Division D1] In a corrugating machine, a device for heating a web comprises a heated drum 18 rotatable about its longitudinal axis and around which the web passes in surface contact therewith, two idler rollers 20, 22 for determining the wrap of the web around the drum, and means for causing the rollers 20, 22 to move between a minimum wrap position at low web speed and a maximum wrap position at high web speed to obtain a uniform transfer of heat to the web. In a single face machine, two preheaters 10, 12 are provided with a guard 14 therebetween. In Fig. 1, the rollers 20, 22 are shown in a thread-up position and are movable to a variety of positions between a minimum wrap position A and a maximum wrap position B. The rollers 20, 22, Fig. 2, are supported by arms 26, 30 secured to gears 28, 32, the gear 28 being slightly larger in diameter than the gear 32. A gear 34 on a shaft 36 meshes with gears 28, 38, the gear 38 meshing with the gear 32. The shaft 36 carries a gear 42 meshing with a smaller gear 44 on a drive shaft 45 to which a reversible motor 46 is connected. A motoroperated potentiometer 48, Fig. 3, including a manually adjustable potentiometer 50, is coupled to voltage sensitive relay 54 coupled to the motor 46 by conductors 56, 58 each containing normally open switches. A positioner 60 for the arms 26, 30 has a potentiometer 62 coupled to the motor 46 and to the relay 54. A resistor 64 is in series with the potentiometer 62. The actual speed of a motor 72, Fig. 4, for feeding the web and driven by a unit 70, is detected by a tachometer 74 which generates a signal to a comparator 78. A signal corresponding to the desired speed of the motor 72 is directed to the comparator 78 from the potentiometer 48. If there is any difference between these two signals, the comparator 78 generates an error signal to the unit 70 to adjust this unit until the signals balance. The potentiometer 48 generates a speed reference signal to control the motor 46. Any difference between the signals communicated to the relay 54 from the potentiometers 48, 62 causes the relay to close one of the switches in conductors 56, 58 to drive the motor 46 to move the rollers 20, 22 until the signals balance. The direction of rotation of the motor 46 is dictated by the relationship of the signals fed to the relay 54 from the potentiometers 48, 62.