baber/WOPTO huggingface dataset:
Patent GB-559484-A (GB)
Title: Improvements in or relating to automatic adjusting arrangements for electrical networks
IPC: H04B3/10
Filed: 1942-08-18
Abstract: 559,484. Automatic control systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. (Corner, A. C.). Aug. 18, 1942, No. 11566. [Class 38 (iv)] [Also in Group XXXIX] A level-adjusting network comprises a ring of resistances and two rotary switches always stepped in the same direction one of them making connection with two points on the ring a constant distance apart and the other making connection with a point between those points. Preferably each switch makes connection with two rings in tandem as shown in Fig. 2 to give an approximation to an equal change of level in decibels for the same relative movement of the switches at any part of the range. In the system described in detail, the switches are controlled automatically by a pilot current. Circuit arrangements.-When the pilot current departs from its standard value, a voltmeter relay (not shown) grounds one of the leads 10, 11 to cause the operation of DRG or IRG which then interacts sluggishly with the stepping magnet DGM or IGM until the switch DGS or IGS has moved its wipers appropriately in relation to the rings of resistances YEA ... YGP and YHA ... YJP to bring the pilot back to standard level. The portion of the rings that are not in use are interrupted by relays A, B, C controlled by wiper DGS5 and DGS6 on the one hand and by wipers 1GS3 ... IGS6 on the other. When the switches are in relative positions corresponding to maximum and minimum gain, relays DCO, 1CO respectively are operated to prevent further operation of the control system and operate characteristic alarms. The switches can be stepped at will by manually operated keys DGK, IGK, key COK having been operated previously to remove control from the voltmeter relay.
Patent GB-1377133-A (GB)
Title: Sodium and potassium-sodium hexacyanoferrate-iii-solutions
IPC: C01C3/12
Filed: 1972-03-13
Abstract: 1377133 Na and Na/K ferricyanides DEUTSCHE GOLD-UND SILBER-SCHIEDEANSTALT 13 March 1972 [3 May 1971] 11575/72 Addition to 1338274 Heading C1A [Also in Division C7] Na 3 Fe(CN) 6  or NaK 2 Fe(CN) 6  is formed by oxidizing an aqueous solution of Na 4 Fe(CN) 6  or a mixture of Na 4 Fe(CN) 6  and K 4 Fe(CN) 6 , in the presence of added H 4 Fe(CN) 6  or H 3 Fe(CN) 6 . The oxidation may be effected electrolytically or with O 2 , air, or H 2 O 2 . The acid may be obtained by reacting the Ba salt with H 2 SO 4  or the alkali metal salt with HCl or with a cation exchange resin in the H form. A solid product may be obtained by crystallization or spray drying.
Patent GB-788671-A (GB)
Title: Improvements in and relating to the production of alkyl aluminium compounds
Inventor: REED HUGH WILMA BOULTON
IPC: C07F5/06
Filed: 1955-04-22
Abstract: Metallic aluminium is reacted with an aluminium alkyl and hydrogen at elevated temperature and pressure to give an alkyl aluminium hydride. The reaction may be carried out at a temperature within the range 60 DEG  to 200 DEG  C. (preferably about 100 DEG  to about 140 DEG  C.), and under a pressure of at least 150 atmospheres.  The reaction temperature should not exceed the decomposition temperature of the alkyl aluminium hydride.  The aluminium should preferably be free from oxide coating; this may be removed by milling the rod submerged in an inert solvent in the absence of oxygen.  Preferably the reaction is conducted in the presence of an alkyl halide (ethyl iodide or n-propyl bromide) or an alkyl aluminium halide as activator, and of an inert solvent such as a paraffinic or alicyclic hydrocarbon.  Water and oxygen should not be present, the preparation being carried out in an inert atmosphere of, e.g., nitrogen.  The alkyl aluminium hydrides may be used as catalysts in the polymerization of olefins, or may be reacted with a -olefines at elevated temperature and pressure to produce aluminium trialkyls, thus dipropyl aluminium hydride reacts with propylene to give aluminium tripropyl.  In an example finely-divided aluminium is suspended in a solution of aluminium triethyl in methylcyclohexane and heated in an autoclave in the presence of hydrogen at 100 DEG  C. and 250 atmospheres pressure. The aluminium sesquibromide with sodium.  The product was filtered in a nitrogen atmosphere to give a solution containing ethyl aluminium hydrides.  This solution was then reacted with ethylene at 100 DEG  C. and 100 atmospheres pressure to give a solution containing aluminium triethyl.
Patent GB-386953-A (GB)
Title: Anti glare glass
IPC: F21V9/08
Filed: 1931-04-20
Abstract: 386,953. Vehicle lamps. VAUGHAN, A. D., 24, 1st Avenue, Auckland Park, Johannesburg, South Africa. April 20, 1931, No. 11725. Convention date, April 29, 1930. Void [Published under Sect. 91 of the Acts]. [Class 75 (ii).] Lantern fronts. - The upper part A of the front glass of a vehicle headlamp is opal or opaque, and the lower part B is transparent, and is either plain or ridged.
Patent GB-704592-A (GB)
Title: Improvements in or relating to amplifiers
Inventor: SIMS DAVID SHELBY
IPC: H03F3/189
Filed: 1952-05-09
Abstract: 704,592. Valve amplifying circuits. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 9, 1952, No. 11762/52. Class 40 (6) In a variable selectivity amplifier, the negative feedback circuit includes a frequency selective filter and a high-to-low impedance transformer connected between the filter and the input circuit. The output of the amplifier 1, 2 is fed back over a bridged-T type filter 7 to a cathode follower 12 connected to the cathode resistor 13 of valve 1. Rotation of the switch arm 14 causes resistors 11 to be shunted across the filter 7 to vary the selectivity, Fig. 3 (not shown). The resulting variations in gain may be compensated by the use of an amplifier 5 fed over a switch bank 15 ganged to switch 14. The filter 7 may be contained in a temperature controlled oven.
Patent GB-377272-A (GB)
Title: Improvements in and relating to apparatus for recording electrical variations
IPC: G11B7/00
Filed: 1931-04-21
Abstract: 377,272. Optical sound-recording apparatus. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of McCreary, H. J.; 5250, Fulton Street, Chicago, U.S.A.) April 21, 1931, No. 11801. Convention date, April 21, 1930. [Class 40 (ii).] In apparatus for recording electrical variations, a beam of cathode rays is ejected from the evacuated envelope in which they are produced and affects a photographic film which is passed through the beam outside the tube. The cathode-ray tube has a hot cathode within a cup 7, the anode consisting of a metal tube 10 which is sealed into and extends through the wall of the tube 3. Close to the cathode cup 7 is an apertured plate 26 connected to the cathode heating circuit, beyond which plate and in line with the aperture is a tube 28 connected to the anode 10. Between the tube 28 and the anode tube 10 is a pair of plates 30 connected to the output of an amplifier 2, to the input of which is applied the varying potential to be recorded, for example that from a pick-up 1 when the instrument is used for recording sound. The outer endplate 15 of the anode tube 10 is provided with a very narrow slit covered by very thin aluminium foil, forming a Lenard window through which the rays are ejected and are deflected by the plates 30 in the direction of the length of the slit, so as to affect a sensitive film 4, for example a motion-picture film. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modified form of cathode-ray tube for producing sound films of the variable-density type, in which the plate 26 and tube 28 are omitted and the plates 30 replaced by a control grid. This subject-matter does not appear in the Specification as accepted.
Patent GB-491172-A (GB)
Title: Metal spray gun
IPC: B05B12/00
Filed: 1937-04-26
Abstract: 491,172. Metal - spraying apparatus; electric heating. ALBERTSON & CO., Inc. April 26, 1937, No. 11836. Convention date, April 30, 1936. [Class 69 (iii)] [Also in Group XI] A metal-spraying apparatus comprises an electric heating element with a body provided with a well 93, within which the metal is melted, having a discharge aperture 96, an air nozzle 101 for spraying the metal discharged through the aperture 96, a switch for controlling the electric supply to the heater, valve means for controlling the air supply, and common manually-actuated means by which the air and electric current are simultaneously controlled. The body is formed in two parts 55, 87 spaced apart by a porcelain member 79, the forward part carrying the heating element 82 and melting chamber 93, and the back part an air valve 52. The body is spaced from the handle 10 by plates 51 supported by pillars 72 having radiating fins. The handle carries a trigger 39 which in its first movement closes a snap switch 25 and on further movement raises a rod 47 to open the air valve 53. The trigger may be latched by a pin 30 in its first position to heat up the metal, a little air being allowed to leak past the valve 53 to cool the nozzle 96 without atomizing the metal. To clear the nozzle 96, a tool 110, Fig. 9, may be employed which by a depression 113 directs a blast of air upwards. The surface to be coated with metal should be cleaned and treated to resemble a turned surface with a fluid such as described in Specifications 491,173 and 491,175, [both in Group II]. The front of the apparatus may be provided with a curved plate 102 by which the coated surface may be smoothed.
Patent GB-118313-A (GB)
Title: Improvements in or relating to Gas Lighting.
Inventor: IONIDES ALEXANDER CONSTANTINE
IPC: G05D16/18
Filed: 1917-08-18
Abstract: 118,313. Ionides, A. C. Aug. 18, 1917. Gaseous-fuel furnaces.-In a system of supplying gas and air or their equivalent through suitable main conduits to any number of combustion apparatus, one of the fluids passes through a governor 2 to limit its pressure, and the other fluid is supplied at a greater pressure by a blower or other continuous-pressure creating device, the gas and air being further controlled by a pressurebalancing device 4 of the type set out in Specification 110,568 and comprising statically balanced or double-beat valves which are operated by a bell, diaphragm, or other sensitive movable partition subjected on opposite sides to air and gas pressure, to maintain a definite relationship between their pressures. Ordinary stop valves 8, 9 or like adjusting-means are arranged on one or both the fluid conduits 5, 6, preferably on the air conduit only, to compensate for temporary variation in the quality of the gas, and the gas and air are supplied to the burners 7 through orifices primarily adjusted in accordance with the pressure and not easily afterwards disturbed. The burners 7 are preferably enclosed and external air is not admitted, the escape of the combustion products being at a point below the level of the combustion zone. A guide light 11 of the type described in Specification 17670/15, [Class 75 (i), Burners &c.], or other light may be arranged to enable the operator to determine the amount of adjustment necessary to compensate for variations in the quality of gas. Specification 102,983 also is referred to.
Patent GB-655094-A (GB)
Title: Improved method for tanning hides or skins
IPC: C14C3/30
Filed: 1948-04-30
Abstract: 655,094. Fur skins; tanning. AABYE, J. S. F. April 30, 1948, No. 11918. Convention date, May 3, 1947. [Class 76] Hides or skins, including fur skins, are subjected to partial tanning with known tanning agents and to subsequent freezing at, say, - 10‹ or - 30‹ C. with simultaneous or subsequent drying in the frozen condition. Drying may be at - -2‹ C.
Patent GB-130136-A (GB)
Title: Improvements in or relating to Apparatus for Bending or Flanging Metals.
Inventor: LORD THOMAS
IPC: B21D51/52
Filed: 1918-07-23
Abstract: 130,136. Lord, T. July 23, 1918. Hollow-ware.-An apparatus for bending or flanging metals, more especially applicable for shaping the bodies of ammunition boxes or canisters of more or less rectangular section with rounded corners, is constructed with rollers f carried by a vertically reciprocated hollow member e which also carries a spring-pressed clamping-member g which bears upon the sheetmetal blank before the rollers f bend it around the former k. The member e is operated from eccentrics c on a shaft b driven by a clutch which may be a one-revolution clutch, and it is guided by guides e<1>, a<2> in connexion with end frames a, a<1>. The clamp g is guided by rods h moving through holes in the block e, and embraced by springs j which normally depress the clamp, or clamps, to an extent determined by nuts h<1>. The former k is pivoted at k<2>, and provided with a counterweight k<1>, and is normally held on a support a' by a catch, which is released when it is desired to swing the former to change the work after it has been bent once. Stops may be used to position the work, and the former may be provided with a recess k<4> if the canister is formed with corresponding depressions on its interior.
Patent GB-200269-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D9/04
Filed: 1922-04-29
Abstract: 200,269. Wallsend Slipway & Engineering Co., Ltd., (Belluzzo, G.). April 29,1922. Blades, vanes, nozzles, and the like.-In turbines of the type having a number of diaphragms wherein guide blades are fixed, the blades A are formed with projections a, or in the case of blades B of uniform thickness the diaphragm is shaped at the junction with the blades B, so as to avoid sharp corners. The blades may be machined singly from bronze or cast.
Patent GB-1136575-A (GB)
Title: Guanidine derivatives
Inventor: MINOR WILLIAM FAULKNER
IPC: C07D213/63
Filed: 1966-03-18
Abstract: 1,136,575. Guanidine derivatives. BRISTOLMYERS CO. 18 March, 1966 [18 March, 1965], No. 12080/66. Heading C2C. [Also in Division A5] The invention comprises compounds of formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen atoms or C 1 -C 10  alkyl groups, non-toxic acid addition and quaternary ammonium salts thereof, and their preparation by reaction of a 2-(2<SP>1</SP>-R<SP>1</SP>NH- ethoxy)-pyridine or a salt thereof with a compound of formula wherein n is 0 or 1 and R<SP>5</SP> is a C 1 -C 10  alkoxy, C 1 -C 10  alkylthio or 1-3,5-dimethylpyrazolyl group, wherein when n is 1, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen and R<SP>5</SP> is the 3,5 dimethylpyrazolyl group, or a salt thereof. The compounds of the invention have antidepressant activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral, topical or rectal administration. The quaternary ammonium salts also have antiseptic and germicidal activity.
Patent GB-1501026-A (GB)
Title: Printing plate washing apparatus
IPC: B41D7/00
Filed: 1976-03-25
Abstract: 1501026 Pneumatic motors L R BLIGHT and A M BLIGHT 25 March 1976 [3 April 1975 ] 12100/76 Heading F1M [Also in Division G2] A rack 8 is driven reciprocally by a piston (not shown) in a cylinder 4. The piston-rod 5 is connected to a bracket 7 fast with rack 8. At the end of each stroke bracket 7 operates a contact 31  or 32 to operate a spool valve (not shown) to change a supply of compressed air from one side of the piston to the other. The device is used in photographic processing apperatus. [Division G2].
Patent GB-423235-A (GB)
Title: Improvements in braking mechanism for lifts
IPC: B66D5/00
Filed: 1933-04-25
Abstract: 423,235. Brakes. INVENTIO SOC. ANON., Hergiswil, Nidwalden, Switzerland. April 25, 1933, No. 12107. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 25, 1933]. [Class 103 (i)] A brake for a lift which avoids violent braking, comprises a brake drum c connected with the motor shaft by means of a friction coupling comprising centrifugal friction blocks e and springs f. The brake comprises shoes a applied by springs and released by a wedge k, operated by a magnet l. At high speed the drum rotates with the motor shaft by reason of the centrifugal blocks e. At low speed the blocks e slip on the drum which is held stationary by the shoes a.
Patent GB-1072091-A (GB)
Title: Method for producing images
IPC: G03F1/68
Filed: 1963-03-27
Abstract: Inks which are used to disrupt polymeric or film-forming dye layers contain a conditioner with this property.  Specified conditioners are glycerol, diethanolamine, salicylic acid, octylphenoxypolyoxyethylene ethanol, fatty acids, fatty acid amides, benzoic acid, methyl pyrollidone, polyethylene glycol, sodium lauryl sulphate, potassium triphosphate or hydroxide, a -naphthol and salts of diethanolamine and benzoic acid, with an acid which releases the conditioner on heating.  The ink may also contain a pigment (e.g. titanium dioxide or carbon black) or a dye, castor oil, an ultra-violet absorber, India ink, 1,4,3,6-sorbide or dextrin. In the example, a metal type, an intaglic plate or a typewriter ribbon is inked with an ink as specified above and contacted with a polymeric or film-forming dye layer which becomes disrupted at the inked areas.
Patent GB-353430-A (GB)
Title: Improvements in or relating to resinoid compositions
IPC: C08G8/00
Filed: 1930-04-17
Abstract: Phenol-aldehyde condensation products.-The production of a phenol-aldehyde resin using an acid catalyst, and the incorporation of the filling-material and the subsequent operations are effected in apparatus of which the surfaces coming into contact with the material are free from iron or copper or other heavy metal of specific gravity more than 8 and which are attacked by 1 per cent hydrochloric acid or by other acids of equivalent strength.  Glass, porcelain, enamelled or chromiumplated apparatus is suitable, and for the impregnation or coating of paper or fabric with solutions of the products chromium or nickel plated or enamelled rolls may be used or the contact surfaces may be made of the product of the invention.  The product is free from colour.  In the production of the resin an excess of formaldehyde is employed, preferably of the order of 2 molecules formaldehyde to one of phenol, and a liquid of high boiling-point such as dibutyl phthalate or triphenyl or tricresyl phosphate may be added to control the reaction.  In an example, 100 parts of phenol are condensed with 200 parts of 40 per cent formaldehyde in presence of oxalic hydrochloric or sulphuric acid and of diethyl phthalate. White laminated products may be made by mixing 600 parts of the mixture of zinc sulphide and barium sulphate sold under the Trade Mark Albalith with a varnish made by dissolving 600 parts of the resin in 400 parts of a solvent such as alcohol.  Paper or fabric is drawn through the mixture and cut into sheets which are superposed to form packs or to form the surface sheets of packs from other resin-impregnated stock, and the packs are pressed between chromium-plated plates. Specifications 16528/08, [Class 2, Acids and salts, Organic &c.], and 326,475, [Class 87 (ii), Moulding plastic &c. substances], are referred to.ALSO:The production and working of a phenolaldehyde resin are effected in apparatus of which the surfaces coming in contact with the material are free from iron or copper or other heavy metal of specific gravity exceeding 8 and which are attackable by 1 per cent hydrochloric acid or other acids of equivalent strength. Glass, porcelain, enamelled or chromium-plated apparatus is suitable for the production of the resin, and for the impregnation or coating of paper or fabric with solutions of the products, chromium or nickel-plated or enamelled rolls may be used, or the contact surfaces may be made of the product of the invention. The product is free from colour.  In an example, paper or fabric is drawn through a mixture of the barium sulphate and zinc sulphide material sold under the Trade Mark Albalith with a solution of the resin, and cut into sheets which are superposed to form packs or to form the surface sheets of packs of other resin-impregnated stock, and the packs are pressed between chromium-plated plates. Specifications 16528/08, [Class 2, Acids and salts, Organic &c.], and 326,475, [Class 87 (ii), Moulding plastic &c. substances], are referred to.
Patent GB-162189-A (GB)
Title: Improvements in or relating to box making and covering machines
IPC: B31B15/00
Filed: 1920-05-03
Abstract: 162,189. Alexander, A. E., (Stokes & Smith Co.). May 3, 1920. Pile supports; sheet-separators; dropping-roller feeds. - In a device for feeding scored cruciform blanks to a box-making machine, the blanks C are held on a sloping table 1 reciprocated by rack-and-pinion mechanism. As the table 1 moves downwards, the front flap of the lowest blank is lowered by a suction device 7 carried. on a lever 10 operated by a fixed cam 12. The forward end of the blank is thus brought to a pair of feed-rollers 13, 14, the lower of which is mounted in arms 17 mounted on a rock-shaft 18 operated by links from a cam shaft.
Patent GB-576605-A (GB)
Title: Printing press
IPC: B41F5/14
Filed: 1944-06-29
Abstract: 576,605. Printing- machines. BELLUCHE, F. R. June 29, 1944, No. 12399. [Class 100 iii)] 1944, No. To increase the speed of high-class rotary sheet-fed printing-machines, the plate cylinder 5 coacts with two impression cylinders 7, 8, which are each supplied by a separate sheet feeder 17, 21 preferably of the continuous type, and separate delivery devices comprising conveyers 20, 24 deliver the sheets to separate receiving devices 19, 23. In the form shown, the feeders are arranged on either side of the printing-couples and the delivery devices behind the feeder 17, but other arrangements of feeders and delivery devices are shown and described. The printing-plate is fitted with two independent inking-devices mounted on adjustable slides 13, 14. The invention may be applied to offset printing-machines by replacing the cylinders 7, 8 by off set cylinders and fitting impression cylinders to coact with them. Automatic tripping devices may be provided for each impression cylinder, and these act independently and the inking-devices may be tripped automatically. For perfecting, the once-printed sheets may be taken from the delivery tables when dry and re-fed through the printing-couples after changing the printing- plates.
Patent GB-559397-A (GB)
Title: Improvements in and relating to firelighters
IPC: C10L11/00
Filed: 1942-09-03
Abstract: 559,397. Firelighters. LUZZATTO, G. J. Sept. 3, 1942, No. 12471. [Class 50] A firelighter is made of spent Fullers earth or spent clay in which is incorporated combustible waste products selected from anthracene residue, varnish foots, amorphous wax and oil skins. A small quantity of an oxidizing agent such as potassium, sodium or ammonium nitrate, and a binder such as sulphite waste liquor from paper pulp manufacture may be added. The ingredients are heated in a mixer to 110‹ C. and the mixture is pressed through water cooled extruders, and cut into slices or briquettes which are pressed to a thickness of ¥ inch.
Patent GB-652892-A (GB)
Title: Improvements in and relating to the treatment and use of rubber latex and other aqueous dispersions
IPC: C23F11/08
Filed: 1948-05-06
Abstract: Aqueous dispersions of organic high polymers such as natural or synthetic rubber are rendered less corrosive to metallic surfaces by adding to the dispersion a salt of an aromatic carboxylic acid such as sodium or other alkali metal, or zinc or magnesium benzoate. Sodium nitrite may also be added.  Preferably, sodium benzoate in saturated solution is added to the latex in an amount up to 10 per cent of the weight of the rubber, the sodium nitrite may be up to 2 per cent, the chloride content of the latex should be kept below 0.1 per cent.  Inert fillers, pigments and waterproofing agents such as wax may be added.  Articles made of metal such as steel may be sprayed with or immersed in the treated latex until a protective film about 0.5 mm. thick is formed, which film may be dried at 70 DEG  C. In the dipping process the article may be suspended by a tape which is left in position.  Zinc benzoate may be used as a suspension obtained by ball milling the salt in the presence of ammonium caseinate solution.