baber/WOPTO huggingface dataset:
Patent GB-582307-A (GB)
Title: Improvements in or relating to calibration arrangements suitable for use in carrier telecommunication systems
IPC: H04J1/16
Filed: 1944-09-15
Abstract: 582,307. Calibrating instruments. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and CAMPBELL, C. F. Sept. 15, 1944, No. 17645. [Class 37] For use in carrier telecommunication systems a calibrator arrangement employs as the standard a Wheatsone bridge including a non- linear resistance in at least one arm together with a sensitive voltmeter for indicating balance, the resistance values being so chosen that when the bridge is balanced the voltage applied thereto has a known predetermined value. A fixed resistance R and a variable resistance VR form opposite arms of the bridge, the remaining arms comprising tungsten filament lamps or other non-linear resistances L1, L2. An input transformer TR matches the bridge impedance to that of the signal input oscillator, which is applied to the input terminals CT1, CT2. The use of non-linear resistances in one or more arms of the bridge ensures that it can only be balanced at one particular value of applied voltage, the resistances being so chosen that this value is 2.45 volts. When a voltage of this value is applied to the input terminals CT1, CT2, no voltage is developed across the output terminals CT3, CT4. The level test set, normally used for measuring the signal level and comprising a sensitive valve voltmeter having a screened and balanced input transformer, is connected to the output terminals CT3, CT4 through an amplifier so as to serve as a sensitive detector for testing the balanced condition of the bridge. When the bridge is balanced the level test set is disconnected from the amplifier and connected to the oscillator. The gain control switch of the level test set is then adjusted until a reading of 10 decibels, corresponding to 2.45 volts, is obtained. Non-linear resistances in which the variation of resistance with applied voltage is largely independent of temperature may be employed instead of tungsten filament lamps.
Patent GB-626469-A (GB)
Title: Purification of antibiatic substances
IPC: C07H15/238
Filed: 1946-06-12
Abstract: Crystalline arylazosulphonic acid salts of water-soluble basic Actinomyces elaboration products (e.g. streptothricin or streptomycin) are manufactured by reacting crude or partially purified acid salts (e.g. hydrochlorides) of the elaboration products (preferably having an activity of the order of 400 units per mg.) with an alkaline salt of an arylazosulphonic acid (e.g. the sodium salt of helianthine or Charge II), preferably in solution in water, an alcohol containing 1 to 4 carbon atoms in the molecule (especially methanol), or mixtures of such alcohols with water, and at temperatures up to about 100 DEG  C., preferably at room temperature. The products may be recrystallized from the alcohols specified above or mixtures thereof with water, and may be converted into substantially pure mineral acid salts by treatment with an excess of mineral acid (e.g. hydrochloric, sulphuric or phosphoric acid) in a solvent (e.g. water, methanol or aqueous mixtures of alcohols containing 1 to 4 carbon atoms in the molecule), the arylazosulphonic acid liberated being filtered off and the mineral and salt recovered, e.g. by pouring the filtrate into a solvent (e.g. acetone or ether or a mixture thereof) which is miscible with the solution but is a non-solvent for the antibiotic salt.  Examples illustrate the various features of the invention.  Specifications 625,820 and 625,821 are referred to.
Patent GB-1491308-A (GB)
Title: Treatment of soil and crops with fungi-inhibiting agents
IPC: C07C233/16
Filed: 1975-04-29
Abstract: 1491308 Phenoxy-alky esters NISSAN CHEMICAL INDUSTRIES Ltd 29 April 1975 [30 April 1974 15 March 1975] 17709/75 Heading C2C [Also in Division A5] Compounds having the general Formula (I) wherein (i) X and Y are both oxygen and Z is hydrogen, alkyl, alkenyl, acyl, alkyl substituted by R 1 COO-, CH 3 COS-, R 2 O-, R 2 S-, HO-, HOOC-, CH 3 CONH-, acyl or alkoxyacyl (where R 1  is C 1  to C 8  alkyl or alkenyl and R 2  is C 1  to C 8  alkyl or benzyl), a piperidinoalkenyl group or any of the groups and ClCH 2 CONH-; (ii) X is oxygen, Y is sulphur or -NH-, and Z is C 1  to C 8  alkyl; (iii) X is sulphur, Y is oxygen, and Z is C 1  to C 8  alkyl, acetylmethyl, methoxymethyl, 2- methyl-1-propenyl or nitromethyl, or (iv) X is a sulphur atom, Y is an -NH group, and Z is C 1  to C 8  alkyl are prepared by conventional methods.
Patent GB-583997-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/228
Filed: 1944-09-18
Abstract: 583,997. Condensers. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. Sept. 18,1944, No. 17779. [Class 37] A terminal for a condenser comprises a length of wire .1 bent into a loop 2 the free end of which is formed into a spiral 3 bearing on the end of a foil of a rolled condenser, the loop 2 engaging in a central aperture 5 of the condenser roll 4 to anchor and fix the position of the spiral 3 relative to the metal container 6 which is closed by an insulating disc 7 with a central eyelet 8 to which the wire stem 1 is soldered. Specifications 419,013, [Group XXXV], and 479,303 are referred to.
Patent GB-111894-A (GB)
Title: Improvements in Safety Razors.
Inventor: MARTIN FREDERICK RANDOLPH
IPC: B26B21/20
Filed: 1916-12-12
Abstract: 111,894. Martin, F. R., and Avery, W. J. Dec. 12, 1916. Razors, safety. The blade a is of flat circular shape, with a continuous cutting-edge, and is clamped between a circular toothed guard b, b' and a circular backing-plate c, which has a central stem d passing through the blade and guard and engaging, as by screwing, with a handle c.
Patent GB-439823-A (GB)
Title: Improvements in or relating to means for mounting an electric fire, gas fire, or other fire, radiator and the like on a wall, panel or like support
IPC: F24C15/30
Filed: 1934-06-16
Abstract: 439,823. Mounting electric, gas, and other fires on walls &c. MITCHELL, W. R. M., Meco Works, Wheeleys Lane, Five Ways, Birmingham. June 16, 1934, No. 17856. [Class 126] An electric, gas, or other fire 4, radiator or the like is mounted in a supporting frame 7 fitted in an opening in a wall, panel or the like 6, the frame having at the front outwardly directed flanges 8 or projections bearing against the front face of the wall or the like, and movable members 9 carried by the frame 7 and adapted to be held against the rear face of the wall or the like. The L- shaped members 9 are held in their adjusted position by bolts 10 which slide in slots 11. Lugs 13 on the rear of the fire engage lugs 12<a> on the frame 7, and the fire is held in position by a nut 16 threading onto a pin 14 which is attached to a bracket on the frame and passes through a hole in the fire.
Patent GB-1321925-A (GB)
Title: Stencil inks
IPC: C09D11/08
Filed: 1971-05-28
Abstract: 1321925 Duplicating inks A B DICK CO 28 May 1971 [3 June 1970] 17925/71 Heading C4A A water emulsion paste ink suitable for stencil duplicating comprises, by wt., 5-30% of petroleum sulphonate, 2-20% of mineral oil having an API number below 26, 4-30% of mineral oil having an API number above 32, a tinctorial agent, and a non-ionic surfactant, the ink being free of lower aliphatic polyols. The colorant may be a dyestuff or a pigment, preferably carbon black, in an amount 2-10% (solids) of the ink, and the surfactant can constitute 3-20%. Rosin, a rosinate, or a salt or ester of abietic acid, may be included in the ink in an amount 0À5-4%. The balance is water and, optionally, 0À001-0À5% of a bactericide.
Patent GB-319305-A (GB)
Title: Improvements in and relating to mercury arc rectifiers
IPC: H01J13/16
Filed: 1928-06-20
Abstract: 319,305. British Thomson-Houston Co., Ltd., and Whitaker, F. P. June 20, 1928. Low-pressure metallic-vapour apparatus. - To prevent arcbacks in mercury-arc rectifiers, an inverted pear-shaped anode 1 is surrounded by an insulated anode shield 3 which carries by means of radial plates 6 a protecting plate 5 and a series of truncated metal cones 4 which direct the arc to the tapered face of the anode.
Patent GB-562211-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J21/02
Filed: 1942-12-18
Abstract: 562,211. Thermionic valves. EDWARDS, B. J., and PYE, Ltd. Dec. 18, 1942, No. 18028. [Class 39 (i)] An electron discharge device has a group of similar control electrodes G], G2, G3, G4, G5, G6, G7, G8 and G9 disposed in the space between a common cathode C and anode A so that each of these control electrodes is spaced the same distance as the others from said cathode and anode and screening electrodes D disposed partitionwise between said control electrodes so as to screen each of them from the others. In the construction shown, the control electrodes are coplanar and in the forms of sectors of circles. The screens D may be connected to a surrounding metal ring which may be earthed or each screen may have a separate connection. In an alternative construction the cathode is in a rod form and is surrounded by a cylindrical anode, the control electrodes being in the form of a series of rings of equal diameter surrounding the cathode. The apparatus is intended primarily as a mixer, the various signals to be mixed being placed in circuit each with an independent control electrode. The proportion of the mixing can be varied by adjusting the grid bias on the various control electrodes. Alternatively, a second set of control electrodes similar to the first may be interposed between the cathode and anode to obtain the same result.
Patent GB-202127-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: H05B3/60
Filed: 1922-07-01
Abstract: 202,127. Kuehnrich, P. R. July 1, 1922. Alloys.-In an electric furnace for the heat treatment of steel, of the kind comprising a salt bath A provided with electrodes D, the latter are made from an alloy of chromium, nickel, silicon, and aluminium, substantially free from iron. The alloy described in Specification 14939/15, but with the iron omitted, may be used.
Patent GB-279161-A (GB)
Title: Improvements in or relating to illuminating devices, suitable for display or advertising purposes
IPC: F21S10/00
Filed: 1926-07-20
Abstract: 279,161. Eeles, F. H. July 20, 1926. Revolving lamps.-In a light projector, as described in Specification 271,531, the motor and driving mechanism are suspended from a stationary platform or a ceiling as by an ornamental tube 41 and are surrounded by a stationary half-spherical casing 42, and the lantern 24 is supported in a stirrup 23 to which a half-spherical casing 43 is attached so as to rotate therewith. The casing 43 is provided with a slot 51 for the passage of the beam, and false slots may also be provided to present a uniform appearance. The gap between the casings may be covered by a shield 53. The stirrup 23 is connected to the casing 43 by means of a squared and threaded pin 44, a nut 45 and a pin 46. The lantern 24 comprises a cylindrical casing, closed at both ends and having bars 47 carrying the trunnions 48, a reflector 52, and an incandescent electric lamp 50 mounted so that the effective part of the filament is always at the common intersection of the axis of the condenser 25, the pivoted axis of the lantern and the axis of the driving-shaft 8. The weight of the condenser is balanced by a counterweight 49. The Provisional Specification states also that an adjustable mirror may be interposed in the path of the beam to deflect it downwards through a condenser.
Patent GB-803384-A (GB)
Title: Improvements in or relating to ceiling structures
IPC: F24D3/16
Filed: 1956-06-12
Abstract: 803,384. Ceilings. GEMA A. G. APPARATEBAU UND STANZEREI, June 12, 1956 [[June 13, 1955, July 15, 1955, Aug. 30, 1955], No. 18133/56. Class 20(4) [Also in Group XIII] A ceiling comprises sheet metal plates 7 having upturned margins 6 which are provided with lateral flanges 11 that rest upon beams 5. The beams are secured to bolts 3 that are anchored in the supporting ceiling structure 1 or in channel-members anchored in or secured beneath the structure 1. The ceiling may be adapted for radiant heating by hot water pipes 8 resting on the beams, and sound-insulating material may be provided in the plates. Several forms of marginal flanges and beams are described; in Fig. 1 for example, the plate flanges rest on flanges 5a on the beams; in Fig. 2 the plate flanges pass through slots 10 in the legs of the beams; and in Fig. 4 the plate flanges snap over outwardly bent portions 12 of the beam legs. Other flange arrangements are described.
Patent GB-145793-A (GB)
Title: Improved process for the casting of pipes and the like
IPC: B22D17/06
Filed: 1920-07-02
Abstract: 145,793. D÷hle, F. Dec. 2, 1918, [Convention date]. No Patent granted (Sealing fee not paid). Casting - machines; castings, extracting; moulds; cores. - In the casting under pressure of a continuous length of pipe or rod, the leading end of the pipe &c. is caused to solidify on the end of a plug which is withdrawn from the mould by means operated by air pressure which varies with the pressure acting on the molten metal to force it into the mould. The process may be carried out by the aid of the apparatus described in Specification 145,792, which is employed to force the metal through a mould containing a short fixed core. The mould c, which may be water cooled, is arranged above the crucible and fitted with a fixed water cooled core f. The upper end of the mould is closed by a plug h with a screwed nose round which the entering metal sets. The plug is raised at a rate corresponding to the flow of metal from the crucible by a slide k traversed by chain gearing operated by any suitable means, such as an air motor, dependent on the air pressure in the compressor cylinder which supplies pressure to force the metal into the mould. A rotatable nut r serves to separate the mould and crucible and to detach the runner block from the mould by contact with a portion of the frame, which can then be turned on the spindle p to allow the pipe to be withdrawn.
Patent GB-1269005-A (GB)
Title: Omnidirectional loudspeaker system
IPC: H04R1/32
Filed: 1970-04-16
Abstract: 1,269,005. Loud-speaker systems. H. H. SCOTT Inc. 16 April, 1970 [15 Dec., 1969], No. 18265/70. Headings H4J and H4X. A floor standing loud-speaker unit includes a housing having four side-faces, a first low audio-frequency loudspeaker mounted in one face with its centre positioned one-quarter of its mean frequency wavelength above the base, a second similar loudspeaker mounted on the opposite face with its centre positioned threequarters of its mean frequency wavelength above the base and four high audio-frequency loud-speakers mounted one on each face asymmetrically near a top corner thereof. Mid audio-frequency loudspeakers may be provided and mounted at different heights one in each face. The high and mid-frequency loud-speakers are provided with small enclosures containing damping material and the housing contains damping material positioned between the lowfrequency loud-speakers. Two such units together are used for sterio reproduction. The positions of the loud-speakers relative to the floor such that for a sound reflective floor the distortions at a given frequency occur at different points of the room, i.e. are not additive. The low-frequency loud-speakers are connected in parallel and the other speakers in series parallel.
Patent GB-1523848-A (GB)
Title: Tank for liquid fuele gas e.g. for motor vehicles
IPC: F17C1/00
Filed: 1977-05-02
Abstract: 1523848 Charging gas containers BK-GAS BV 2 May 1977 [4 May 1976] 18288/77 Heading F4P A buffer tank 2 to prevent overcharging of a liquefied fuel gas tank 1 is located in the upper part of tank 1, communicating with the interior of the tank 1 via a restricted orifice 13, and with the exterior of the tank 1 via a pipe 17 of relatively large bore normally closed by a screw plug 18. The pipe 17 provides access to the buffer tank 2 for quick filling with e.g. water for pressure testing. The orifice 13 together with a further orifice in the upper part of the tank 2 substantially restricts the flow of liquefied gas into the tank 2 during filling of tank 1, through pipe 11.
Patent GB-811112-A (GB)
Title: Improvements in or relating to tubular conduits
IPC: F16L11/00
Filed: 1955-06-24
Abstract: 811,112. Tubular conduits. REBUT, P. June 24, 1955 [June 25, 1954], No. 18299/55. Class 99(2). A conduit comprises a tubular sheath formed of flexible material and has elements which are adapted to be inflated so as to provide when inflated a set of reinforcing members 4 extending longitudinally of the sheath and a separate set of reinforcing members 5 extending circumferentially of the sheath. The sheath may be seamless and formed with loop like guides 2 and annular gussets 3. The sheath may be formed of an airtight woven material or it may be formed of synthetic material. In the latter case the guides and gussets are secured to the remainder of the sheath by means of an adhesive. In a modification each longitudinal reinforcing member is received by a continuous guide in the form of a longitudinal gusset. The guides 2 may be disposed within the sheath while the gussets 3 which receive the reinforcing members 5 are located outside the sheath. Alternatively the guides 2 and gussets 3 can be formed so as to be air-tight. They can then themselves be used as air pockets or chambers which are inflated to provide stiffening means for the sheath. Preferably the sheath is of synthetic material and the guides, gussets or pockets may then be formed by the use of an adhesive. The reinforcing members may be supplied with air through a network of tubes.
Patent GB-968923-A (GB)
Title: Improvements in or relating to feeding mechanisms for biscuit or the like laminar articles
Inventor: CLEMENTS RONALD BALDWIN
IPC: B65B23/12
Filed: 1962-05-12
Abstract: 968,923. Feeding biscuits in packaging machines. T. & T. VICARS Ltd. May 6, 1963 [May 12, 1962], No. 18355/62. Addition to 928,482. Heading B8C. To reduce breakage of biscuits or similar articles as they are pushed downwardly by a block 21 out of a pocket 13, the spring-loaded cheeks 12 which retain the biscuits, instead of being swung aside by the biscuits themselves, as in the parent Specification, are swung aside by a pair of depending fingers 50 on the block 20. In the form illustrated the camming ends 59 of the fingers 50 engage grooves in rollers 51 mounted on the cheeks 12.
Patent GB-1047915-A (GB)
Title: Toy tops
IPC: A63H1/20
Filed: 1965-04-30
Abstract: 1,047,915. Tops. P. BALLEIS. April 30, 1965 [Oct.13, 1964], No. 18364/65. Heading A6S. A top is rotatable about a stationary shaft 2 and has a transparent hood 4 with an integral platform 5 driving a reduction gear thereby to rotate a cup shaped element 31 carrying a monorail train 33 by means of a hollow shaft 16 driven directly by gear 17, and a further flat element 25 carrying a train 28 is driven at slower speed in the same direction by gearing 19, 20, 21 from the said gear 17.
Patent GB-1347101-A (GB)
Title: Cleaning of duplicating machines
IPC: B41L41/06
Filed: 1971-06-01
Abstract: 1347101 Washing blanket cylinders in situ A B DICK CO 1 June 1971 [1 June 1970] 18390/71 Heading B6C A blanket cylinder 12 is washed in situ by a triple roller arrangement comprising roller 34, axially reciprocable roller 33 and metering roller 112. The arrangement is tripped into engagement with the blanket cylinder such that the rollers 34, 33, 112 engage one after the other and each time the blanket is washed fresh cleaning fluid is used. This is ensured by a pump 150 which delivers fluid through a nozzle arrangement 161 to a crevice between the lower roller 33 and the metering roller 112. When the triple roller arrangement is moved into operative cleaning position by a handle 220 a wiper assembly 180 is brought into contact with the lower roller 33 thus ensuring that spent fluid is discharged into a trough 202.
Patent GB-208994-A (GB)
Title: Improvements in and relating to self-locking nuts
IPC: F16B39/24
Filed: 1923-07-17
Abstract: 208,994. Thelland, J. Le G. July 17, 1923. Locking nuts.-A nut is locked by means of a split spring washer 1 of the type having projections such as 9, 1<a>, which engage depressions or ratchct-teeth in the work and the bearing face of the nut respectively, and in order to facilitate disengagement of the locking means the projections 1<a> are made of comparatively soft metal so that they may be bent back or sheared off when sufficient force is applied to the nut for the purpose of unscrewing it. The washer may have more than one complete turn. A plate or washer may be interposed betweem the split washer and the work, having ratchet teeth on its upper surface and pins on the lower face to engage the work.
Patent GB-774752-A (GB)
Title: Epoxidized polymers
IPC: C08C19/06
Filed: 1955-06-27
Abstract: A polymerized diolefin is epoxidized in the liquid phase with an aliphatic peracid containing from 1 to 10 carbon atoms. Specified polymers are polybutadiene and polyisoprene and peracetic acid is the specified peracid.  The reaction may be carried out in aqueous emulsion, in the presence of a solvent, e.g. toluene, benzene, xylene and chloroform, or, if the polymer is liquid without emulsion or solvent.  The treated polymer preferably contains at least 1 per cent oxirane oxygen.
Patent GB-1223817-A (GB)
Title: A control system for electrostatic precipitators
IPC: B03C3/74
Filed: 1969-04-10
Abstract: 1,223,817. Electrostatic precipitators. KOPPERS CO. Inc. 10 April, 1969 [10 April, 1968], No. 18551/69. Heading B2J. [Also in Division H2] An electrostatic precipitator includes an electronic control system for periodically energising rappers to remove the dust from the collector electrodes. As seen in Fig. 1, gas flows horizontally through the precipitator between discharge wires 14 and collector plates 16. The wires 14 hang from members 18 and rods 20 which are insulated from the shell 20 of the precipitator. The plates 16 are supported by members 26 on the shell. Rappers 24, 28 serve to vibrate the wires 14 and the plates 16 respectively so that dust falls into a hopper 32. Several sets of rappers may be positioned along the precipitator, and each set is energised in sequence by the control system (see Division H2).
Patent GB-940688-A (GB)
Title: A device for mechanically sealing packages with adhesive strips
IPC: B65B51/06
Filed: 1962-05-15
Abstract: 940,688. Applying adhesive strip to packages. C. NEUBRONNER. May 15, 1962 [May 20, 1961], No. 18559/62. Heading B8F. In apparatus for sealing packages by means of adhesive strip 2, the package 9 fed by a conveyer device along a track 10 is halted for a predetermined period while the leading end 2a of the strip is pressed against the package by a pivoted brush 5 and is then advanced and again halted while the trailing end 2b of the strip is pressed against the package by a pivoted brush 6. This is effected by a time switch 11 associated with the conveyer and having breaker contacts 12 which are operated by the brushes 5, 6 when they swing down from the horizontal position:
Patent GB-754782-A (GB)
Title: Improvements in the bleaching of cellulose pulps
IPC: D21C9/12
Filed: 1954-06-25
Abstract: Cellulosic pulps, e.g. wood pulps are boiled with a dilute alkali solution at a temperature of at least 125 DEG C. and are subsequently treated with a mixture of a chlorite and a hypochlorite in proportions such that the amount of available chlorine derived from the hypochlorite is from one half to twice that derived from the chlorite.  The pulp may be boiled as a slurry of consistency 5 to 20 per cent by weight with sodium hydroxide of concentration 0.4 to 6 per cent and may be bleached as a slurry of 2 to 18 per cent by weight consistency, at temperatures between 10 DEG C. and 60 DEG C. and pH between 7 and 10, which may be adjusted with sodium hydroxide. Sodium chlorite and hypochlorite may be used.  Boiling temperatures up to 170 DEG C. are specified.  Either the boiling or the bleaching treatment may be preceded by other alkali treatments or treatments with chlorine and/or hypochlorite, and the process may be followed by other purification treatments.  The example relates to the treatment of sulphite pulp.