baber/WOPTO huggingface dataset:
Patent GB-481207-A (GB)
Title: Improvements relating to freeing metallic pieces from their surface film of oxide
IPC: B21C43/04
Filed: 1936-10-14
Abstract: 481,207. Cleaning metal. DE WENDEL & CIE, LES PETITS FILS DE F. Oct. 14, 1936, Nos. 27871 and 27872. Convention dates, Oct. 14, 1935 and Oct. 10, 1936. [Class 82 (ii)] [Also in Group XXII] Oxide films are removed from metal wire, bars, sheets, &c. by subjecting the articles to tension, the force being such that the residual elongation of the articles is equal to or greater than 3 per cent. In treating bars or sheets two jaws or sets of jaws are provided, one set being fixed and the other being movable, e.g. by a hydraulic piston. For wire the stretching is preferably effected by passing it round two reels in succession, the reels having different peripheral speeds. In Fig. 2, the wire is passed by guides 15 to a tapered reel 8. which is driven directly by bevel gearing 11, 12. A helical guide plate 16 is provided at the lower end of the reel. The wire is then taken to a reel 19, the diameter of which is greater than that of the reel 8 and which is driven through a clutch 17 by bevel gearing 13, 14. Between the reels a wiper 18, e.g. wire brushes, removes the loosened oxide which falls into a receptacle 19. The reels 8 and 9 may alternatively be separately driven, in which case they need not be of different diameters, and a lubricating device and a wire-drawing die may be inserted between the wiper 18 and the reel 9, in which case the peripheral speed of the reels 8 and 9 is so adjusted that the wire receives its elongation between the reel 8 and the die. Fig. 4 shows a similar arrangement to that in Fig. 2, except that the second reel 21 is of the type with an axial offtake of the wire. The wire passes from the reel 21 to a lubricating bath 22, a die 23, and a third reel 24 which is the first reel of a continuous draw-bench. Several wires may be de-oxidized simultaneously, Fig. 7, the wires 1, 1a, &c. being guided to tapered grooves 27 on a drum 25 and passing thence to separate reels 28, the peripheral speeds of which are adjusted to give the required elongation.
Patent GB-455734-A (GB)
Title: Process for the absorption, in highly-concentrated nitric acid, of nitrous gases formed by the combustion of ammonia
IPC: C01B21/26
Filed: 1935-10-10
Abstract: The nitrous gases formed by the combustion of ammonia are freed from water vapour by rapid cooling, the water-freed gases are oxidized to the tetroxide stage, the degree of oxdiation being finally brought to about 100 per cent by the reduction of a quantity of highly concentrated nitric acid equal to not more than 10--20 per cent of the acid producible from the tetroxide, and lastly, the tetroxide is absorbed with highly concentrated nitric acid in a single absorption stage.  The process may be conducted under pressure.  The first part of the oxidation can be conducted in chambers in which the oxygen present in the gases act on the lower oxides, while at the same time the separation of any residual moisture as dilute nitric acid and the removal of the heat of oxidation can be effected by indirect cooling. The completion of the oxidation with concentrated nitric acid can be effected in a chamber filled with Raschig rings.  The absorption stage is preferably effected at temperatures of -10 to -30 DEG  C. The nitric-acid vapour carried off with the residual gases can be washed out with the acid coming from the initial oxidizing apparatus, the acid thus increased in strength being worked up into highly concentrated acid in conjunction either with the tetroxide or with the absorption acid containing the tetroxide. The highly concentrated acid charged with the tetroxide can be freed from the gas in known manner, e.g. by heating, and returned to the absorption chamber.  The tetroxide recovered can be worked up into nitric acid in known manner.  U.S.A.  Specification p  1,910,816 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the employment of dilute nitric acid separated out prior to the oxidation either alone or together with that separated out during the oxidation for recovering the nitric acid vaporized during the absorption stage. Further, the final oxidation with concentrated nitric acid may be omitted.  This subject-matter does not appear in the Specification as accepted.
Patent GB-251317-A (GB)
Title: Improvements in or relating to electromagnetic mechanisms
IPC: H01H50/54
Filed: 1924-11-22
Abstract: 251,317. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. Nov. 22, 1924. Addition to 195,824. Electromagnets.-Electromagnetic mechanisms for operating relay contacts or the like have the two interconnected armatures as set forth in the parent Specification replaced by a single armature interconnected with a contact-operating member partly by magnetic forces induced by a polarizing field and partly by magnetic forces induced by excitation of the relay winding, the armature being assisted in its restoration to The normal position by the polarizing field. As shown in Figs. 1 and 4, relay contacts 14 are carried by a centrally pivoted contact-carrier 5 on which is secured a permanent magnet 8. The armature 1 is pivoted at 2 and extends longitudinally through the energizing coil 3, the free end of the armature having two lateral extensions 4, 4<a> which normally rest on the poles of the permanent magnet 8, the attraction of which assists to maintain the carrier 5 in its normal position. The magnet frame 9 to which the armature 1 is pivoted has a polar extension 10 normally separated from the free end of the armature so that on energization of the coil 3 the armature is moved upwards. Owing to the like polarity produced in the armature polar extensions 4, 4a the contact-carrier 5 will be rotated in one or other direction according to the direction of current in the coil 3, magnetic attraction and repulsion at opposite ends of the magnet 8 taking place. Thus one or other of the sets of contacts 14 are brought into engagement, the restoration of the relay to normal position on de-energization of the coil 3 being assisted by the attraction of the members 4, 4a to the poles of the magnet 8.
Patent GB-995286-A (GB)
Title: Improvements in or relating to high-intensity light sources
IPC: G01P3/68
Filed: 1962-07-20
Abstract: 995,286. Cathode-ray tubes. LITTON INDUSTRIES Inc. July 20, 1962 [July 31, 1961], No. 28000/62. Heading H1D. A light source comprises a cathode-ray tube having a screen 16 coated with a phosphor 24 of short persistency, a cathode 18 with emissive area of the same order of magnitude as the screen area, and a grid 20 for controlling the electron emission from the cathode to the screen. The grid is normally biased negative, while a continuous electron-accelerating potential is applied between cathode and screen, short positive pulses being applied to the grid to produce high-intensity light flashes. As shown, the cathode is of the Pierce type, buts may be of part-cylindrical or elongated form, and may be of 5 inch diameter providing pulses of up to 2,000 amperes of current. An axial magnetic focusing field may be provided. The cathode and heater 42 are supported from metal housing 14, while concave grid 20 is mounted on metal rings 28, 30, 32 with a cold cathodegrid spacing of 120 mils. Adjacent parts of grid 20, anode 22 and mounting ring 32 are formed with rounded edges to prevent arcing. The anode 22 is connected to the aluminized phosphor screen and to an accelerating voltage of about 60 KV. Positive pulses of 5 to 10 KV. and 10 to 20 nanoseconds length are applied to the grid, which is normally biased negative, to provide light pluses of about 40 nanoseconds length, the phosphor brighteners decaying to one half in 20 nanoseconds. The phosphor screen may be cooled by forced air currents. An arrangement for high-speed photography of a projectile is described.
Patent GB-248053-A (GB)
Title: Improvements in, or relating to, apparatus for inserting articles into open-ended receptacles or the like
IPC: B65B35/40
Filed: 1924-11-24
Abstract: 248,053. Rose, W., and Rose Bros. (Gainsborough), Ltd. Nov. 24, 1924. Packeting cigarettes, matches, and the like in open-ended cases.-Relates to apparatus for inserting articles such as boxes or trays of cigarettes. matches, &c., into open-ended cases. The case 4 is supported in the loft-hand position shown in Fig. 4, in proximity to a channel member 2 with a tapered mouth-piece 3. A pusher member 6 is actuated by arms 8, 18 to move into the position x and to engage the back of the case, and then to move to the position y and force the case into the position 4 so that the open end embraces the mouth-piece 3. The member 6 remains in the position y while a plunger 6 introduces an article from the channel 2 through the mouthpiece and into the case. The member 6 is now caused to retire from the rear end of the case and to travel in a horizontal path beneath it and to pass upwards through a gap 37 in the plunger 36 and to rise into proximity with the open end of the now filled case. The member 6 then travels from the left-hand position shown in Fig. 4 through a higher horizontal path to the position z, pushing the case with it on to a surveyor or other delivery mechanism. The line W indicates the path traversed by the upper end of the member 6. If necessary a gap may be provided in the lower portion of the mouth-piece 3 to allow the passage of the member 6.
Patent GB-427778-A (GB)
Title: Improvements in and relating to buckets for elastic fluid turbines
IPC: F01D5/14
Filed: 1934-10-01
Abstract: 427,778. Turbine blades. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 1, 1934, No. 28062. Convention date, Sept. 30, 1933. [Class 110 (iii)] A turbine blade is made in two parts, the inner part 14 being solid, and the outer part 15 being hollow and made of sheets of corrosion resisting material welded together at their edges. The material may be an alloy of cobalt, chromium, tungsten and/or molybdenum known under the Registered Trade Mark " Stellite." The hollow part is slipped over the reduced end 17 of the solid part and fixed by welding. The outer end is closed by a plug 21 which has projections 23 adapted to secure the shrouding bands 24.
Patent GB-225043-A (GB)
Title: Improvements in the construction of panel boards for wireless signalling and other apparatus
IPC: H05K7/06
Filed: 1923-11-08
Abstract: 225,043. Radio Communication Co., Ltd., and Beswick, R. E. Nov. 8, 1923. Switchboards.-A panel for a sectional panel board is formed of ebonite or the like and has embedded in it during the process of moulding one or more metallic sockets adapted to receive a clamping or other fixture. The Figure shows a panel A clamped to frame members B by latches C which swivel on pillars D screwing into sockets E embedded into the panel during the moulding process. Terminal posts G are similarly secured to the panel by means of metallic sockets H.
Patent GB-1149460-A (GB)
Title: A process for producing esters of dicarboxylic acids and diols
Inventor: GROSS HANS-WERNER
IPC: C07C69/82
Filed: 1967-06-19
Abstract: 1,149,460. Esters of dicarboxylic acids and glycols. METALLGESELLSCHAFT A.G. 19 June, 1967 [21 June, 1966], No. 28242/67. Heading C2C. Esters of dicarboxylic acids with diols are produced continuously by reacting a dicarboxylic acid with an alkanol, reacting the mixture so formed with a diol to obtain a product which contains an ester of the dicarboxylic acid with the diol and also the alkanol, recovering the alkanol from the mixture and recirculating it for reaction with further amounts of dicarboxylic acid. The reaction is carried out at elevated temperature, e.g. 120-300‹ C. The process is particularly suitable for esterifying terephthalic acid with ethylene glycol using, preferably, methanol as the alkanol. In an example an ethylene glycol ester of terephthalic acid of formula HO(CH 2 CH 2 OOC-C 6 H 4 -COO) n CH 2 CH 2 OH in which n is 2-6 is prepared.
Patent GB-210133-A (GB)
Title: Process of and apparatus for use in drying ores, concentrates and other granular materials
IPC: F26B17/26
Filed: 1922-10-17
Abstract: 210,133. Rigg, G., and McBride, W. J. Oct. 17, 1922. Rotary scraper apparatus; rotary drums and containers. - In a process for drying ores and other granular material a current of hot air or gas is passed through a layer of the material on a porous bed, which may be stationary or rotary, and the dried material is finally drawn through the bed. The moist material is fed through a choke E, Fig. 6, on to a horizontal diaphragm and is moved towards a central opening therein bv upper blades D<1> carried by arms D<2> on a shaft M. The material then drops on to a perforated screen C and is fed outwardly by the lower blades D<1>. As the material dries, it falls through the perforations in the bed and is drawn off at F. Coarser material or lumps which fail to pass through the screen are drawn off at H. Heated air &c. supplied through the annular chamber L is drawn through the bed by an exhaust pipe G. The perforated screen C is covered by a layer of pebbles, balls, or other rounded material. In a modification, the material is fed through a shoot E, Fig. 4, and by a worm J<1> into the interior of a cylindrical bed C which may be in the form of inner and outer perforated screens C<2>, C<3>, Fig. 5, with pebbles, balls &c. between them. The screen is rotated in a casing A which is exhausted through an opening G, hot air &c. being supplied through the opening B<1> to the interior of the cylinder C. The dried material passing through the screen is delivered into the lower part A', and lumps are delivered into the shoot H. In a further modification, the material is fed on to one end of a long porous bed and is moved continuously in the same direction by blades.
Patent GB-1191240-A (GB)
Title: 0,3-Diazacycloalkeno[2,1-a]isoindolones
IPC: A61K31/00
Filed: 1968-03-28
Abstract: 1,191,240. 1,3 - Diazocycloalkeno[2,1-a]isoindolones. F. HOFFMANN-LA ROCHE & CO. A.G. 28 March, 1968 [18 May, 1967], No. 28273/69. Divided out of 1,191,237. Heading C2C. Novel compounds having the general formula I or II: wherein B represents an alkylene chain containing from 2 to 4 carbon atoms in which one or more of the hydrogen atoms may be replaced by lower alkyl having 1 to 6 carbon atoms and R<SP>1</SP> and R<SP>2</SP> individually represent a halogen atom or the trifluoromethyl or hydroxy group or a lower alkyl having 1 to 6 carbon atoms or lower alkoxy group having 1 to 6 carbon atoms and wherein the broken lines denote that the atoms or groups attached thereby are optional and the dots in the formulµ represent carbon atoms are prepared by (a) in the case of compounds having the Formula I heating the corresponding phthalaldehydic acid in ethanol with ethylenediamine (i.e. a diamine of the formula H 2 N-BNH 2 ) and addition of ethereal hydrogen chloride gives the hydrochloride salt; (b) in the case of compounds having the Formula II treating compounds of the Formula I with diethyll azodicarboxylate under reflux, removing the hydrazo ester by filtration and concentrating the filtrate to give the product of the Formula II. In the examples, 1,2,3,9b-tetrahydro-5H- imidazo[2,1-a]isoindolone- (5) hydrochloride, 1,2,3,9b - tetrahydro - 5H - imidazo[2,1-a]isoindolone-(5) and the corresponding 2,3-dihydro- 5H-imidazo[2,1-a]isoindolone-(5) are prepared.
Patent GB-956149-A (GB)
Title: Cable terminal for ignition systems
IPC: H01R13/719
Filed: 1960-08-16
Abstract: 956,149. Two-part couplings. A. T. H. FONTAINE. Aug. 16, 1960 [Aug. 29, 1959], No. 28279/60. Heading H2E. [Also in Division F1] A spark plug connector adapted for interference suppression comprises a metal elbow 1 containing an insulating liner 6 supporting a contact 4, for engagement with the spark plug terminal, and a prong 3 for engaging a cable core, said contact and prong being connected by a plurality of series-connected coil sections 5. It is stated that in the relevant frequency region, the coil sections act as series capacitances which together with the capacitances existing between the sections and the earthed elbow 1 form an m-derived low-pass filter.
Patent GB-360577-A (GB)
Title: A spring wheel for baby cars and the like
IPC: B60B9/26
Filed: 1930-09-23
Abstract: 360,577. Spring wheels. BLAND, W., Bank Top Cottage, Harden, Bingley, Yorkshire. Sept. 23, 1930, No. 28354. [Class 144 (i).] A wheel comprises three curved springs F bolted to a channel rim G, the inner ends of the springs being clamped between a pair of slotted collars B, C fitted on a shouldered hub A<1>. The parts are secured by a nut E which is recessed to receive a spring-washer D.
Patent GB-427025-A (GB)
Title: Improvements in and relating to the control of electrically propelled vehicles
IPC: H02P3/14
Filed: 1933-10-13
Abstract: 427,025. Master control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and CANSDALE, J. H., 40, Murray Road, Rugby. Oct. 13, 1933, No. 28357. [Class 38 (iii)] A regenerative compound-wound vehicle motor A is controlled by contactors 2, 3, 4, which first close to short-circuit sections of armature resistance B, and later re-open to insert sections of resistance S in the shunt-field circuit. The first operation of a master controller M closes contacts 21-25 in sequence, to energize line contactors 1, 10, and armature resistance contactors 2-5. The contactor 5, which shortcircuits the whole of the starting resistance, maintains itself over the first contact of the controller. Further operation of the controller opens contacts 26-32 in sequence to de-energize the line contactor 10 and contactors 6, 2, 3, 4 and 7, in the order named, thereby introducing resistance in steps in the shunt field, the contactors 10, 2, 3 and 4, having auxiliary contacts 10x, 2x, 3x and 4x, for the shunt field control. On the last position a contactor 8 is de-energized to open the shunt field circuit or introduce a large resistance. By returning the master controller to the off position the motor is regeneratively braked.
Patent GB-1479076-A (GB)
Title: Lubrication of valves in supercharged internal combustion engines
IPC: F01L3/08
Filed: 1975-07-04
Abstract: 1479076 Lubricating IC engine valves FRANCE ARMED FORCES MINISTER OF 4 July 1975 [18 July 1974] 28406/75 Addition to 1412075 Heading F1B An annular cavity 10 in the valve guide 4 of a supercharged diesel engine valve 1 communicates permanently with an oil supply passage 15, e.g. connected to the engine lubricant system, and an oil return passage 12 communicating with the interior of the valve gear casing 8 at or slightly above atmospheric pressure. The cross-sectional area of at least part of the oil supply path, e.g. the passage 15 and the port 16, is less than the cross-sectional area of at least part of the return path, e.g. the passage 12 and the port 14 so that the pressure in the cavity 10 during engine operation is close to the substantially atmospheric pressure in the casing 8. The passages 12 and 15 may be formed by grooves or flats machined on the guide. The annular cavity may be formed by a groove on the guide exterior communicating with the guide interior through radial bores. Further, annular cavities may be provided in the guide and communicate with the oil supply and the casing interior. A side valve engine may have annular cavities adjacent opposite ends of the guide.
Patent GB-464335-A (GB)
Title: Electric sewing machine cabinet
IPC: D05B69/18
Filed: 1935-10-15
Abstract: 464,335. Sewing-machines. SINGER MANUFACTURING CO. Oct. 15, 1935, No. 28407. Convention date, Aug. 17. [Class 112] Electrically driven sewing-machines are provided with a casing on the cabinet for housing the usual foot-controller unit and are provided with a knee-shift lever with toggle mechanism for operating the controller unit by the knee. The sheet-metal support 10 for the controller unit is screwed to the end-wall 8 of the cabinet and has its sides 11 bent up and flanged at 12 to provide guides for the unit 14. A spring tongue 27 holds the unit 14 firmly in position. The controller unit 14 has a spring plunger 15 by depression of which the contact for starting the motor 9 is made and by which the usual carbon discs of the rheostat are compressed or released to regulate the speed of the motor. For foot operation, the unit 14 is detached from the casing 10 by a downward pull and placed on the floor so that the plunger 15 may be operated by the foot. For knee operation, the unit is housed in the casing 10 and the plunger 15 operated by means of the kneeshift lever 45. This is laterally adjustable by a pin-and-slot arrangement 41 to suit the operator. On moving the lever by the knee, the part 35 pivots about the stud 33 and thrusts a curved member 40 pivoted to it at 38 through a slot 31 in the bracket 32 to depress the plunger 15 with which it is in alignment.
Patent GB-819204-A (GB)
Title: Improvements in or relating to boxes made of cardboard or like material
IPC: B65D5/66
Filed: 1955-10-05
Abstract: 819,204. Cartons. HALL, C. T., and MOLINS MACHINE CO. Ltd. Oct. 5, 1956 [Oct. 5, 1955], No. 28425/55. Class 18. In a cardboard box with an integral hinged lid made from a single blank, a part 4 of the front wall 3 is folded downwards within the body a further part 5 being folded upwardly to extend within the lid when it is closed. Side flaps 10, 11 are hinged to the part 5 and extend upwardly from within the body to form corners with the part 5 for engagement with the inside of the lid. Specifications 507,998 and 585,020 are referred to.
Patent GB-896103-A (GB)
Title: Steroid compounds and their preparation
IPC: C12P33/00
Filed: 1958-09-04
Abstract: The invention comprises 11a - and 11b -hydroxy-16a -alkyl-progesterones, and the preparation thereof by subjecting 16a -alkyl-progenterones to the action of an oxygenating enzyme produced by growing an 11(a  or b )-hydroxylating strain of an oxygenating micro-organism, e.g. Rhizopus nigricans or Aspergillus ochraceus (to form the 11a -hydroxy compounds) or Curvularia lunata (to form the 11b -hydroxy compounds).  The invention also includes a process for the preparation of 11-keto-16a -alkyl-progesterones by oxidising 11a - or 11b -hydroxy-16a -alkyl-progesterones with chromic acid in acetic acid, with the optional further step of reacting the 11-keto compound with an alkyl oxalate and a base in the presence of alkoxy ions to form an alkali metal enolate of an 11-keto-16a -alkyl-21-alkoxyoxalyl-progesterone, and with the optional further step of reacting the alkali metal enolate with a halogen to form an 11-keto-21,21-dihalo-16a -alkyl-21-alkoxyoxalyl-progesterone.  16a  - Hydroxy - 16a  - methyl - progesterone is prepared by treating D 16-pregnenolone acetate with methyl magnesium iodide and oxidising the resulting 16a -methyl-pregnenolone with chromic acid. Specification 896,104 is referred to.
Patent GB-836116-A (GB)
Title: Improvements in and relating to electro-magnetic systems for measuring or indicatingclearances between relatively movable parts
Inventor: FOWLER ELIOT PATRICK
IPC: G01B7/02
Filed: 1955-10-06
Abstract: 836,116. Electric tests &c. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 4, 1957 [Oct. 6, 1955], No. 28515/57. Class 37. To detect clearance between relatively movable members such as turbine blading and casing a member carrying projections is mounted on one member and a pick-up coil 7 excited by a permanent magnet 6 on the other. As the projections pass the coil the reluctance of the magnetic circuit is reduced and a voltage induced in the coil whose amplitude is dependent on the spacing d. The indications of a meter 11 are made independent of speed by integrating the coil output with respect to time and the meter has a logarithmic scale. In a modification projections 2 are replaced by conical recesses formed by the end of a drill. Radial or axial clearance may be measured and the device may be used at the low-pressure end of a turbine with the capacitive device described in Specification 756,466, at the high-pressure end.