baber/WOPTO huggingface dataset:
Patent GB-278842-A (GB)
Title: Improvements in or relating to radio or high frequency choke coils for wireless telephony
IPC: H01F5/02
Filed: 1926-08-13
Abstract: 278,842. Oliver, C., and Oliver Pell Control, Ltd. Aug. 13, 1926. Inductances. - An insulating support A of ebonite, vulcanite, &c. is provided with alternate shallow and deep recesses D, E, the former of which are wound to form a high-frequency chole coil having sections separated by air spaces. The walls of the recesses are furnished with a number of radial slots cut to the depth of the unwound recesses E. The layers of the winding may be separated by insulating rings of varnished paper, cardboard, &c., and the windings may be covered by silk or other ribbon to exclude dust, and the body of the wound former, excluding the base C and the top end, may be encased in celluloid, &c. The support A has a central bore B which is reduced at the base and counter-sunk to receive a screw for attaching the coil to a panel, &c.
Patent GB-1019720-A (GB)
Title: Means for monitoring the operating speed of a motor
IPC: G01P3/46
Filed: 1964-05-14
Abstract: 1,019,720. Measuring speed electrically. BENDIX CORPORATION. May 14, 1964 [May 20, 1963], No. 20176/64. Heading G1N. The speed of an electric motor required to run at constant speed for e.g. a gyroscope, is determined by measuring the impedance of a field winding in a bridge circuit while the motor is running. As shown (Fig. 3) a two-phase motor 218 has one stator winding 216 fed directly from an A.C. supply 210, and the second stator winding 220 fed through a capacitor 226, the winding 220 and capacitor 226 forming two arms of a bridge circuit with impedances 232, 236, which is balanced when the motor is running at its normal speed. Deviation from this speed, in general a reduction in speed due to e.g. friction at the bearings, causes the impedance of field winding 220 to change, and the bridge output, amplified at 245 and rectified at 250, is shown on a meter or operates an alarm relay 261 at a predetermined low speed. In another embodiment (Fig. 2), the speed of a 3-phase motor 118 is monitored by measuring the impedance of two of the three stator windings connected in series.
Patent GB-404225-A (GB)
Title: Improvements in or relating to wireless receiving systems connecting aerials to distributing systems
IPC: H03F1/50
Filed: 1933-07-17
Abstract: 404,225. Wireless receiving systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. July 17, 1933, No. 20180. Convention date, July 16, 1932. [Class 40 (v).] A wireless aerial is coupled to a distribution system by a number of amplifiers in parallel each effecting optimum amplification for a different range of frequencies and the output transformer of each amplifier is dimensioned to match the line impedance for the frequency range to be amplified. The amplifier 2 for the higher frequencies, as shown, has the output transformer secondary connected in series with a condenser 5 and in parallel with the secondary of the output transformer of the amplifier 1 for the lower frequencies. Alternatively the output transformer secondary windings may be connected in series with a small condenser in parallel with the output transformer of the amplifier operating on the lower frequencies. The inputs to the amplifiers may include band-pass filters so that cross modulation does not produce sum or difference frequencies within the frequency range of the amplifier.
Patent GB-1079882-A (GB)
Title: Sewing machine thread cutting device
IPC: D05B65/00
Filed: 1964-05-15
Abstract: 1,079,882. Sewing machine. D. E. ARNOLD. May 10, 1965 [May 15, 1964; Nov. 25, 1964], Nos. 20244/64 and 47841/64. Heading D1G. A sewing machine comprises a pneumatically-operated thread cutter, a reservoir of pneumatic energy which is maintained charged by the performance of an action customarily involved in a sewing operation, and control means for connecting the reservoir to the cutter for effecting cutting of the thread as and when required. A knee pad 32, adapted when actuated to lift the presser foot 202, is coupled by a crank 29 to the piston rod 272 of a single-acting air pump 27, whereby actuation of knee pad 32 also operates pump 27 to charge a pipe line 26 with compressed air. Subsequent manual actuation of a knob 25 opens a valve 24 to connect pipe line 26 to a pipe line 23 leading to a single-acting pneumatic motor mounted vertically on the head of the machine, whereby a knife blade carried by the piston rod of the motor descends to sever the thread. The pump may be alternatively connected operatively with a treadle. In a modification, Fig. 7, not shown, the motor cylinder is mounted under the worksupporting plate transversely to the direction of feed and is inclined upwardly, the knife blade co-operating with a vertical anvil plate. In a further modification, Fig. 9 not shown, applied to an overedge sewing machine, the motor is mounted under the worksupporting plate and is inclined upwardly and at an acuate angle to the direction of feed, the knife blade also co-operating with a vertical anvil plate. In yet a further modification. Fig. 14, not shown, the piston rod of a vertically mounted motor is coupled via a bell crank lever (38), pivoted horizontally on the presser foot (40), to one arm of a two-armed lever (39) pivoted vertically on the presser foot, the other arm being constituted by a thread-cutting blade (402). In the arrangements of Figs. 7, 9 and 14, operation of the cutting blade serves to draw off thread.
Patent GB-206816-A (GB)
Title: Controlling device for motor driven sewing machine
IPC: D05B69/12
Filed: 1923-08-09
Abstract: 206,816. Singer Manufacturing Co., (Assignees of Diehl, F.). Nov. 11, 1922, [Convention date]. Sewing-machines; driving.-A casing 11, mounted on the bed 2 of a sewing-machine beneath the fly-wheel 6 contains a motor-controller 14 connected to the driving-motor 8 and carries a pivoted brake arm 30 for the wheel 6. A rod 23 slidably mounted in the casing is spring- pressed upwards against the head 33 of a screw adjustably mounted in a lug on the brake arm 30. An arm 21 fixed to the rod 23 carries a roller 20 which works between side-plates 18 on the controller-arm 16. By actuating a treadle-rod 36 to pull down the rod 23, the brake is released and the motor is started. Spools, bobbins, and the like, winding, - A bobbin-winding device 40 is mounted on the casing 11.
Patent GB-1554184-A (GB)
Title: Water washable dye penetrant composition and method of application
IPC: B65H54/58
Filed: 1976-05-17
Abstract: Water washable substantially biodegradable dye penetrant composition for use in non-destructive dye penetrant inspection of parts for locating cracks and flaws therein, consisting essentially of an organic dye, preferably a fluorescent dye, a carrier or solvent for said dye in the form of certain ethoxylated linear alcohols, particularly the biodegradable nonionic surfactants comprised of ethoxylates of a mixture of secondary alcohols having linear alkyl chains of from 11 to 15 carbon atoms, and an average of from 3 to 12 moles of ethylene oxide, and glycol monobutyl ether for thinning the dye penetrant solution substantially without affecting the sensitivity of the penetrant or its biodegradability, and facilitating application of the liquid dye penetrant composition by spraying to the surface of an object or part to be inspected.   In the method of application of the dye penetrant composition, such composition is applied to the surface of an object containing cracks and flaws, water is applied to the surface of the object, preferentially removing the glycol monobutyl ether vehicle or carrier, and almost immediately thereafter removing the remaining dye penetrant distributed on the surface, both the removal of the glycol ether component and the remaining dye penetrant occurring in the same washing operation.   The part is then inspected under appropriate lighting conditions such as fluorescent or black light, to obtain colored traces from the dye penetrant remaining in the cracks and flaws.
Patent GB-1237129-A (GB)
Title: Improvements relating to tunnelling apparatus
Inventor: SMITH WILLIAM
IPC: E21D9/08
Filed: 1968-04-29
Abstract: 1,237,129. Tunnelling. W. SMITH. 28 July, 1969 [29 April, 1968], No. 20323/68. Heading E1F. Tunnelling apparatus comprises a cutting head with cutting tools 26 rotatably mounted at the end of a cylindrical shield 10 about an axis transverse to the axis of the shield. The head may be of spherical shape and is divided into three axially spaced units to provide gaps for sprocket wheels 22 driven by chains 24. The shield 10 may have a cutting edge 29 and hydraulic rams 13, the plungers 14 of which bear against the tunnel lining. Conveyor 32 is provided.
Patent GB-320611-A (GB)
Title: Improvements in the manufacture and production of magnetic cores of high permeability
IPC: H01F1/26
Filed: 1928-07-14
Abstract: 320,611. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 14, 1928. Divided on 319,854. Electromagnets.-Magnetic cores are made by mixing a metallic powder, preferably prepared from a metal carbonyl as described in Specifications 262,938, 269,677, [both in Class 72, Iron &c.] ; or 284,087, [Class 82 (i), Metals, Extracting &c.], with one of the pitch-like or asphaltic substances mentioned below and consolidating under pressure. The pitch-like or asphaltic substances may be prepared as described in Specification 302,710, [Class 22., Cements &c.], or by treating a mixture of asphaltic or pitchy substances and oils or fats, with or without resin, with oxygen at a high temperature, or by stirring asphaltic or pitchy substances. with liquid or soft coumarone or like resins.
Patent GB-584852-A (GB)
Title: Improvements in and relating to the manufacture of penicillin derivatives
IPC: C07D499/04
Filed: 1943-12-07
Abstract: Penicillins having an aliphatic side chain containing one or more double bonds or mixtures thereof are hydrogenated under mild conditions to saturate the side chain double bonds without disrupting the molecule as a whole to give products with an enhanced physiological activity.  The preferred reduction method is to shake the penicillin in aqueous solution with hydrogen at room temperature and in the presence of a palladium or platinum catalyst.  Buffering agents such as phosphates are preferably present and the reaction is carried out at pH of approximately 7.0.  The starting materials for the process of the invention are produced by using strains of Penicillium Notatum and a surface culture.  The presence of the required side chain is indicated by the culture product responding to the usual tests for an unsaturated compound.  A typical suitable starting material containing a pentenyl side chain is known as Penicillin-I in Great Britain and as Penicillin-F in America.  An example is given using a penicillin produced by a strain of Penicillium Notatum Westling, and a catalyst produced by heating platinum chloride with sodium or potassium nitrate.  The hydrogenated penicillin is extracted with ether.
Patent GB-986562-A (GB)
Title: New 2-oxo-tetrahydro-imidazole compounds and processes for preparing them
IPC: A61K31/415
Filed: 1963-05-22
Abstract: The invention comprises compounds of the formula <FORM:0986562/C2/1> wherein R and R1 to R4 each represents a hydrogen atom or an aliphatic hydrocarbon group containing up to 5 carbon atoms and R may also represent a phenyl group which may be substituted by a halogen atom or a trifluoromethyl, C1- 5 alkyl, C1- 5 alkoxy or nitro group. The compounds are prepared by cyclizing an N - [5 - nitrothiazolyl - (2)] - urea of the formula <FORM:0986562/C2/2> preferably in the presence of a basic condensing agent, e.g. an alkali metal acetate or carbonate, and a polar solvent, e.g. water or dimethyl formamide, or by nitrating a compound of the formula <FORM:0986562/C2/3> N - (2 - Chlorethyl) - N1 - [5 - nitrothiazolyl-(2)] - urea, N - (2 - chloropropyl) - N1 - [5 - nitrothiazolyl-(2)] - ure and N - [2 - chloro - butyl - (3)] - N1-[5-nitrothiazolyl -(2)]-urea are prepared by reacting 2 - amino - 5 - nitrothiazole with 2 - chlorethy isocyanate, 2-chloropropyl isocyanate and 2-chloro-butyl-(3) isocyanate, respectively.  N-(2-Chlorethyl) - N1 - [4 - methyl - 5 - nitrothiazolyl-(2)]-urea is prepared by reacting 2-amino-4-methyl-5- nitrothiazole with 2-chlorethyl isocyanate.  1 - [4 - Phenylthiazolyl - (2)] - 2 - oxotetrahydroimidazole is prepared by reacting 2-chlorethyl isocyanate with 2 - amino - 4 - phenylthiazole and heating the resulting N-(2-chlorethyl)-N1 -[4-phenylthiazolyl-(2)]-urea with sodium acetate in dimethyl formamide.  Pharmaceutical and veterinary compositions having antiparasitary activity, for oral or parenteral administration, comprise a compound of the invention together with a pharmaceutical or veterinary carrier.  The compositions may be formulated as tablets, dragees, capsules, solutions, suspensions or emulsions. In veterinary use the active ingredient may be added to animal fodder or additives to animal fodder.
Patent GB-457942-A (GB)
Title: Improvements in or relating to the dyeing of fibrous materials
IPC: D06P1/673
Filed: 1935-07-19
Abstract: Acid wool, substantive and unspecified types of dyes, dyeing with.--The fastness to light of dyeings on fibrous materials, in the pre-treatment, dyeing or finishing of which have been employed substances, not of a dyestuff character, giving rise to cations capable of reducing the surface tension, is improved by an after-treatment with resin or other acids (as such or in the form of their salts) which do not yield precipitates with iron salts but do yield precipitates with the substances giving rise to the said cations.  Specified acids are abietic, persulphuric, perboric and ortho-, meta- and pyrophosphoric acids.  The use of acids giving rise to anions capable of reducing the surface tension is excluded.  In an example, cotton piece goods, dyed with Diamine brown M, dried, impregnated with an aqueous solution of dodecylpyridinium sulphate and again dried, are impregnated with a solution, at room temperature and of pH = 7, of sodium abietate and dried; the dyestuff may be replaced by Direct fast yellow B or FF, Direct brown B, Pluto orange G, Benzopurpurine 4B or Brilliant benzo fast violet 2RL. Specification 435,431 is referred to.
Patent GB-751912-A (GB)
Title: Improvements in colour photographic processes and materials
IPC: G07F7/10
Filed: 1954-07-15
Abstract: Homogentisamides are prepared by treating homogentisic acid lactone with an aliphatic amine of the formula R.NH2, where R is an alkyl group of 6 to 18 carbon atoms.  Values of R specified are hexyl, octyl, decyl, dodecyl, cetyl and octadecyl. Specifications 2562/13, [Class 98 (ii)], 524,154, 524,554, 524,555 and 541,589, [all in Group XX], also are referred to.
Patent GB-205254-A (GB)
Title: Improved process for the manufacture of dichlor fluorane
IPC: C09B11/08
Filed: 1922-07-29
Abstract: Dichlorfluorane is prepared by condensing m-chlorphenol with phthalic anhydride in the presence of concentrated or fuming sulphuric acid, or chlorsulphonic acid.  An example of the process is given.  m-Brom- or m-iodo-phenol behaves similarly. Specification 9675/04 is referred to.
Patent GB-423343-A (GB)
Title: Apparatus for mixing liquids and gases
IPC: B01F3/04
Filed: 1934-07-16
Abstract: 423,343. Treating liquids with gases. NEW JERSEY ZINC CO., 160, Front Street, New York, U.S.A.-(Assignees of Myhren, A. J., and Marquis, B. ; Palmerton, Pennsylvania, U.S.A.) July 16, 1934, No. 20836. Convention date, Dec. 15, 1933. [Class 55 (ii)] Apparatus for mixing liquids and gases comprises a tank, a spray for charging thereinto fresh liquid intimately mixed with gas, and a separate spray for recirculating through the tank some of the liquid under treatment therein intimately mixed with gas withdrawn from the tank. Gas is drawn by a fan 12 through tanks 5, 51 connected by pipes 8 above the liquid level. Liquid passes through the tanks preferably in countercurrent to the gas and enters by a pump 20 through a spray injector nozzle 6 where it is intimately mixed with gas drawn from the tank through a pipe 29. Liquid drawn by a pump 31 from the bottom of the tank is lifted through a pipe 33 to branch pipes 21, 34 so that part is sprayed into the same tank S through a nozzle 7 where it is mixed by injector action with gas drawn from the tank through a pipe 19, and part is sprayed through a similar nozzle 6<1> in the next tank. Similar connections are provided between the subsequent tanks, treated liquid passing off finally at 38. Each spray 6, 7 comprises a duct 25 containing a spiral baffle 26 and ending in a discharge nozzle 27 placed concentrically with a Venturi tube 30. Pressure gauges 24 and control valves 23, 36 comprising pinch valves on flexible connections 22, 35 are provided to regulate liquid flow between the tanks. The fan 12 draws the gas through an adjustable water seal 10 and passes it through copper screens 14 and a pipe 15 to a gas burner 16. Zinc sulphide may thus be manufactured by treating zinc sulphate solution with hydrogen sulphide, or calcium carbonate by treating lime water with carbon dioxide.
Patent GB-313786-A (GB)
Title: Improvements in and connected with taps for dispensing liquids
IPC: F16K3/26
Filed: 1928-07-18
Abstract: 313,786. Hole, J. H., and Bryant, W. R. July 18, 1928. Piston valves.-A tap particularly adapted for dispensing oils and valuable liquids comprises a ported sleeve 11 slidably mounted on a tube 1 adapted to be connected to a container and provided at its closed end 12 with a washer 13 adapted to be pressed, by a spring 10 arranged concentrically about the tube 1, against a seat formed on a collar 6 secured to the tube 1. In the form shown in Fig. 1, the valve is actuated by a pair of levers 16 pivoted to a common bracket 17 and coupled together by a handle 19. In the form shown in Fig. 3, the levers are L- shaped and the handle is adapted to be moved towards a thumb-rest 26. A modification is described in which the spring is arranged externally.
Patent GB-639266-A (GB)
Title: Improvements in coloured cellulose ester or ether products
IPC: C09B1/60
Filed: 1947-07-31
Abstract: Cellulose ester or ether fibres, foils, or films are coloured red shades with a 1-amino- or 1-alkylamino-4-hydroxy-anthraquinone having in the 2- or 3-position a mercapto group etherified by an unsubstituted alkyl group, a hydroxyalkyl group, a halogen alkyl group, a cycloalkyl group, or an aryl group.  Groups for etherifying the mercapto group include methyl, 2-hydroxyethyl, 2-hydroxypropyl, 2-hydroxybutyl, 2-hydroxyoctyl, 2-hydroxylauryl, lauryl, butyl, ethyl, b -chlorethyl, cyclohexyl, or phenyl.  The dyes are prepared by etherification of the corresponding 2-mercapto body, or by reaction of the corresponding 2-halogen body with a mercaptan or its alkali metal salt.  The dyes may be applied with dispersing agents and/or protective colloids, e.g. soaps, sulphonated oils, acid alkyl sulphates of 12 or more carbon atoms, and formaldehyde-naphthalene sulphonic acid condensation products.  Cellulose derivatives specified are the acetate, propionate, acetopropionate, or aceto-butyrate, and ethyl or benzyl cellulose.  The Provisional Specification also refers to the 5- or 8-chlor derivatives of the above dyes and describes the treatment of 1 - amino - 2 - mercapto - 4 - hydroxy - anthraquinone with (1) ethylene chlorhydrin, (2) dimethyl sulphate, (3) lauryl chloride.  It also describes the preparation of 1-amino-2-mercapto-4-hydroxy-anthraquinone from the corresponding 2-brom body, sulphur, sodium sulphide, and alcohol, and the preparation of 1-amino-2-brom-4-hydroxyanthraquinone from 1 - amino - 2.4 - dibromanthraquinone and sulphuric and boric acids.
Patent GB-1073084-A (GB)
Title: Continuous flow mixing apparatus of the internal recirculating type
IPC: B01F7/00
Filed: 1964-05-20
Abstract: 1,073,084. Continuousflow mixing and emulsifying apparatus. CHEMETRON CORPORATION. May 20, 1964 [May 23, 1963], No. 20867/64. Headings B1C and B1V. A mixing or emulsifying apparatus has a cylindrical casing with ends 15, 15A and a coaxial shaft 25 carrying a detachable rotor comprising a hub 30, curved impeller blades 32 and annular plate 33; that side of the plate remote from the impeller blades has concentric arrays of pins 36 interdigitating, with a clearance of about 1/16 inch, with similar arrays of fixed pins 56. There are deflectors 55 centilevered out from the end 15, with their outer ends curved opposite to the direction of rotation of the impeller. In operation the shaft is driven through a variable speed drive having a range of 247 to 1480 r.p.m.; material is supplied under pressure to the inlet 12 and passes between the pins 36, 56 and through the annular passage 34, whence part is discharged at 13 and part recirculates through the spaces 34A, 35. The deflectors 55 may alternatively take the form of inclined grooves (70, Fig. 7 not shown) in the casing, or deflecting blades (71, Figs. 8 and 8A, not shown) attached to the plate 33 and the ends of the impeller blades 32. A back-pressure valve downstream of the apparatus may be used to regulate recirculation and throughput. The casing may have heat exchange passages and the end 15A may be supported on the end 15 by a hinge (see Figs. I and 2).
Patent GB-507712-A (GB)
Title: Improvements in or relating to the remote control of wireless sets
IPC: G05D3/10
Filed: 1938-07-15
Abstract: 507,712. Electric control systems. SOC. ANON. FIMI. July 15, 1938, No. 21012. Convention date, July 19, 1937. Drawings to Specification. [Class 40 (i)] In the control of a wireless set, separate impulses of acoustic energy are transmitted to a receiver, the resulting electric current impulses being used to step the control element. The acoustic impulses may be generated by feeding a loud-speaker through an amplifier from a make-and-break device, a microphone receiving the impulses which, after amplification are employed to operate a pawl-andratchet drive. Specification 485,930 is referred to.
Patent GB-828146-A (GB)
Title: Improvements in temples for looms
Filed: 1958-07-01
Abstract: 828,146. Loom temples. SULZER FRERES S. A. July 1, 1958 [July 18, 1957], No. 21059/58. Class 142(2) Spiked rings 19 running on bearings 18 are assembled on hardened sleeves 31 instead of being mounted directly on the spindle of the temple. The ends of the sleeves are peened over or grooved to receive spring rings, or the sleeves may be slit longitudinally or helically to retain the bearings resiliently.
Patent GB-836809-A (GB)
Title: Improvements relating to throttle valves for internal combustion engines
IPC: F02M9/02
Filed: 1956-07-06
Abstract: 836,809. Spray carburetters: throttle valves. IND. NAZ. CARBURATORI DELL'ORTO S.p.A. July 6, 1956 [July 6, 1955], No. 21066/56. Classes 7(3) and 7(6) The lower edge of a sliding plate type throttle valve 2 is bevelled at 2' so that when it contacts the idling stop 4 the reaction on the surface 2<SP>1</SP> urges the valve against its downstream, guide surfaces, thus reducing air leaks. The surface 2<SP>1</SP> is also bevelled transversely to the air duct 1 and co-operates with a tapered surface on the adjustable stop 4.
Patent GB-970356-A (GB)
Title: Dyestuffs of the anthraquinone series for polyester materials
IPC: C09B1/514
Filed: 1963-05-27
Abstract: The invention comprises dyes of the formula <FORM:0970356/C4-C5/1> wherein X is hydrogen or nitro and Y and Z are different and are hydroxy and nitro.  The dyes are made by condensing 1 : 5-dihydroxy-4 : 8 - dinitro - anthraquinone or 1 : 8 - dihydroxy - 4 : 5 - dinitro - anthraquinone with a mono- or dinitroaniline, such as meta-nitroaniline. The dyes dye polyethylene terephthalate in blue shades.