baber/WOPTO huggingface dataset:
Patent GB-517233-A (GB)
Title: Improvements in annealing box alloys
IPC: C21D9/00
Filed: 1938-07-28
Abstract: 517,233. Alloys. DUNLOP, S. (Ferror Steel Corporation). July 28, 1938, No. 22512. [A Specification was laid' open to inspection under Sect. 91 of the Acts, March 21, 1939.] [Class 82 (i)] Annealing-boxes are made of a ferrous alloy containing 1-30 per cent. of chromium, 0.5-2 per cent. of carbon, 0.25-10 per cent. of copper, 0.1-2 per cent. of aluminium and 0.25-6 per cent. of silicon. The alloy may also contain up to 6 per cent. of nickel or up to 2 per cent. of tungsten, molybdenum, vanadium, cobalt, tantalum, uranium, manganese, titanium, zirconium or niobium.
Patent GB-349373-A (GB)
Title: Improvements in or relating to car couplers
IPC: B61G3/06
Filed: 1930-07-26
Abstract: 349,373. Automatic couplings for railway vehicles. NATIONAL MALLEABLE & STEEL CASTINGS CO., 10600, Quincy Avenue, Cleveland, Ohio, U.S.A.- (Assignees of Bazeley, A. J. ; 9718, Logan Court; Cleveland, Ohio, U.S.A.) July 26, 1930, No. 22571. Convention date, Sept. 27, 1929. [Class 103 (v).] In a knuckle coupling for railway &c. vehicles of the kind in which the lock 7 is adapted to be released by a lifter 15 actuated by a pivoted operating lever 12, the coupler head 5 is provided with a pair of spaced lugs 19 connected by an integral pin 20 which forms a bearing for the lever 12, the latter having a hook portion 18 that can be readily attached to or detached from the pin 20 when the lever is swung to the position shown in Fig. 7. The lever 12 is also formed with an eye 14 adapted to receive the bent extremity 16 of the lock lifter 15, and with laterally disposed eyes 21 to which operating shafts extending to the sides of the vehicle may be linked. At its upper end the lifter 15 engages in known manner with an inclined slot 9 in the lock 7.
Patent GB-1223839-A (GB)
Title: Polyamides
Inventor: BURROWS HARROLD GEORGE
IPC: C08L77/00
Filed: 1967-05-16
Abstract: 1,223,839. Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 April, 1968 [16 May, 1967], No. 22723/67. Heading C3R. Fibre-forming polyamides of lactams, aminoacids or diacids and diamines are formed in the presence of such an amount of a polysulphonic acid of polystyrene, polyvinyltoluene or a styrene/vinyl toluene copolymer that the molar ratio of sulphonic acid groups to amine end groups in the polyamide is between 1:1 and 5:1. The sulphonic acid may be in the form of its metal salt. Other ingredients such as delustrants, heat or light stabilizers, fillers and molecular weight regulators may also be present. The polymers have improved affinity for basic dyes and little or no affinity for acid dyes. In examples, the sodium or potassium salt of polysulphonic acids of polystyrene containing from 4À4 to 7À4% sulphur are incorporated in nylons 66, 66/6T and 66/6I. In Example 1 the salt is formed in situ from the acid and alkali hydroxide. Reference is made to Specification 1,161,391.
Patent GB-777539-A (GB)
Title: Process for purifying and decolourizing titanium tetrachloride
IPC: C01G23/02
Filed: 1955-08-08
Abstract: Crude titanium tetrachloride is purified and decolorized by adding thereto from 0.01 to 0.1 per cent by weight of water, dissolving the precipitate of basic chloride so formed by stirring and adding dry and finely powdered charcoal, heating the resulting mixture to boiling point for the time necessary for the complete adsorption of the impurities by the charcoal and distilling the titanium tetrachloride.  The quantity of charcoal employed is preferably 1 to 5 per cent.  According to examples (1) titanium tetrachloride containing chromyl and vanadium chloride impurities was treated with a small amount of water and the basic titanium chloride formed was dissolved by stirring. Charcoal which had been dried at 100 DEG C. for five hours, was then added to the tetrachloride which was heated to boiling and kept at this temperature for five hours under reflux after which it was distilled to obtain a clear titanium tetrachloride.  (2) A titanium tetrachloride containing as impurities V - Al - Fe - Mg - Ca - Zr and smaller amounts of Si - B - Sn - Ni - Mn and Na, obtained by the chlorination of rutile with coal was treated with water and after the addition of dry charcoal was brought to boiling and then immediately distilled to produce colourless titanium tetrachloride.
Patent GB-1157256-A (GB)
Title: Process for production of Substituted 1.2.4-Triazoles
Inventor: BECKER HEINZ
IPC: C07D249/14
Filed: 1967-05-17
Abstract: 1,157,256. 1,2,4 - Triazole derivatives. LEUNA-WERKE "WALTER ULBRICHT". 17 May, 1967, No. 22841/67. Heading C2C. 3-Substituted or 3,5-disubstituted, 1,2,4- triazoles wherein the substituents are amino, alkylamino, arylamino, aralkylamino, allylamino, hydrazino, hydroxy, alkoxy, aryloxy, cyano, thiocyano, mercapto, alkyl mercapto, aryl mercapto or aralkyl mercapto are prepared by reacting a 1,2,4-triazole substituted by halogen in the 3-position or 3,5-positions with a nucleophilic reagent containing one of the substituent groups at a temperature between 100‹ and 270‹ C. The reaction may be carried out in the presence of a solvent and/or a catalyst.
Patent GB-827790-A (GB)
Title: Closure means for containers
Inventor: JOHN DARA DERRICK PHIROZ ST
IPC: B65D39/00
Filed: 1957-07-19
Abstract: 827,790. Container closures. LOUGHBOROUGH GLASS CO. Ltd. May 9, 1958 [July 19, 1957], No. 22867/57. Class 125(3). A container closure with frusto conical body 1 has a porous top part 2 formed of a sintered plastic or glass or porous pot to permit the closure to breathe. In a modification the sintered plastic forms the base of a hollow screw plug closure and in a further modification, Fig. 3, the base and top portions 10, 11 are of sintered plastic, one or both being removable while the space 12 between them may be filled with a material to absorb unwanted gases.
Patent GB-501735-A (GB)
Title: Improvements in and relating to electric converting circuits
IPC: H02M7/15
Filed: 1937-08-20
Abstract: 501,735. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 20, 1937, No. 22901. Convention date, Aug. 20, 1936. [Class 38 (ii)] In a converting arrangement employing discharge devices back-ignition is reduced by decreasing the voltage gradient across the valve at commutation. This is effected by inserting in each anode lead an inductance which saturates during the conducting period at comparatively low values of load current, but de-saturates during the commutation intervals and is provided with a control winding whereby the amount of saturation is increased at the beginning of the conducting period and is reduced at the end. In a full-wave rectifier arrangement, Fig. 1, chokes 13 are included in the anode leads of the valves 4, 5 and these are provided with additional windings 15 which are connected in series through an inductance 16 across the secondary of the transformer 3. These windings give a phase displaced alternating flux in the core which increases the saturation of the core during starting of the discharge so that it builds up quickly and reduces the saturation to increase the impedance during the commutation period. In a modification of this in which a polyphase arrangement is used, each auxiliary winding is connected in series with another phase. In a further modification, the biassing winding is connected in series in the D.C. output circuit. In this case, only the commutation period is effected. Where there are phases displaced by 180‹, one core may have two main windings. Specification 406,651 is referred to. Reference has been directed by the Comptroller to Speciftcations 492,807 and 496,112.
Patent GB-734181-A (GB)
Title: Improvements in or relating to coating compositions
Inventor: MORRIS REGINALD BURFORD
IPC: C09D201/00
Filed: 1951-03-19
Abstract: A coating composition comprises a vehicle comprising a film-forming material dispersed or dissolved in an aqueous medium or a volatile solvent medium, such as white spirit or xylene, and, dispersed through said vehicle, fine particles of a spray-dried synthetic resin or cellulose derivative, the spray-dried material being neither soluble nor swellable to any appreciable extent in said medium.  The spray-dried material may be dyed, preferably prior to spraying and preferably with a fluorescent dyestuff. The film-forming material may be cellulose nitrate or acetate, carboxymethyl cellulose, an alkyd resin, a drying oil modified alkyd resin, a styrenated alkyd resin, a urea- or melamine-formaldehyde resin, polyvinyl acetate, chloride or alcohol, polymethyl or polybutyl methacrylate, polymethyl acrylate, polyacrylonitrile, polystyrene, gelatine or a water-soluble alginate. The spray-dried material may be urea-formaldehyde, butylated urea- or melamine-formaldehyde, cellulose nitrate, acetate, acetobutyrate or acetopropionate, ethyl or benzyl cellulose, polyvinyl butyral, polyvinyl formal, or a homopolymer or copolymer of methyl or butyl methacrylate, vinyl acetate or chloride or vinylidene chloride.
Patent GB-690059-A (GB)
Title: Bearing for the axle of a movable part in time-keepers
IPC: G04B31/008
Filed: 1950-09-20
Abstract: 690,059. Bearings. ZURCHER, R. Sept. 20, 1950 [Sept. 26, 1949; June 24, 1950], No. 23079/50. Class 12 (i). A bearing unit for the axle of a movable part in time-keepers comprises a pierced jewel 2 in a setting 1 and a cap jewel 4 abutting against a shoulder 6 of a setting 3, the settings 1, 3 being screwed together. A shoulder 9 of the support 8 may be clamped between the settings 1, 3 as shown in Fig. 2. In a further modification a setting 14, Fig. 3, supporting the cap jewel 4 serves as an upper cap jewel end-piece, whereas the other setting 15 supporting the pierced jewel 2 is forced into the cock 11.
Patent GB-483796-A (GB)
Title: Improvements in or relating to lubricating oils
IPC: C10G50/00
Filed: 1937-08-23
Abstract: <PICT:0483796/III/1> Lubricating-oils are freed from paraffin wax by mixing the oil with a ketone containing a n-butyl group and having 6 to 7 carbon atoms, chilling the mixture, and separating the solidified wax. Methyl- or ethyl-n butyl ketone is used. Lubricating-oil from a tank 1 is admixed with solvent from a tank 5, and the mixture passes through heat-exchangers 8, 9 to a chiller 10. The mixture now containing solidified wax passes to a filter 14, preferably of the continuous rotary type.  The filtrate passes from inside the filter drum 13 to a storage tank 17 and still 18 where the solvent is removed by steam.  The solvent and water flows from a condenser 20 to a separator 21 from which solvent returns to the tank 5.  The spongy coating of wax on the filter drum 13 is washed with pre-cooled solvent from the tank 5.  The first washings are added to the filtrate, and subsequent washings pass through the heat-exchangers 8, 9 and are then used as the solvent for treating fresh oil; the solvent in the tank 5 being used for washing the wax. The dewaxing solvent may be mixed with other wax antisolvents such as acetone or methyl ethyl ketone, or with wax modifiers such as the condensation products of aromatic hydrocarbons, or phenols with chlorinated paraffins or olefines. Filtration may be assisted by clays, silica, naphthalene or p-dichlorbenzene.  The dewaxing solvents may also be used for de-oiling waxes.
Patent GB-650451-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S13/91
Filed: 1946-08-02
Abstract: 650,451. Radio navigation and signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 2, 1946, No. 23157. Convention date, Sept. 27, 1945. Drawings to Specification. [Classes 40 (v) and 40 (vii)] A radio navigation system comprises a pulse radar station co-operating with a plurality of mobile craft, each of which carries a responder beacon responsive to interrogation by the radar station and re-transmitting signals comprising pairs of pulses spaced according to the region in which the craft is situated, the radar receiver comprising a plurality of channels each adapted to pass to a separate indicator received signals having a characteristic coding so that only responses from craft within a predetermined region are shown on any one indicator. As applied to the navigation of aircraft, the radar receiver comprises three channels adapted to pass responses from craft at altitudes of 0-2000 feet, 2000-4000 feet, and 4000-6000  feet, respectively. The radar station transmits a rotating beam of pulses on a frequency f 1 , which is received by a suitably equipped aircraft and re-transmitted on a frequency f 2  as a train of double pulses whose spacing depends upon the height of the craft; thus in the range 0-2000 feet the spacing may be 25 Á secs. in the range 2000-4000 feet 35 Á secs., and in the range 4000-6000 feet 45 Á secs. At the receiver the train of double pulses is passed by the appropriate channel which delivers a train of single pulses which is applied to a P.P.I. display, the sweep circuits of which include a delay network to compensate for the delay introduced in converting the double pulse into a single pulse. There are thus provided at the radar station three P.P.I. displays showing craft at three different levels. A transparent map is superimposed upon each P.P.I. and the resultant displays are televised and transmitted back to the craft upon frequencies f 3 , f 4 , and f 5 , respectively. Each craft contains a television receiver tuned to the frequency appropriate to its altitude and thus obtains a display showing the craft at the same level as itself. In order to identify the indication due to his own craft the pilot is provided with means for either switching off his responder or for increasing its output-so that the intensity of the corresponding spot on the display is caused to vary. The responder and the television receiver are controlled from a barometric altimeter which causes the spacing of the responded pulses and the television reception frequency to be changed appropriately when the aircraft moves from one altitude zone to another. The invention may be adapted for control of ships or aircraft by assigning different beacon codes to craft at different distances. Specification 649,322, [Group XL (b)], is referred to.
Patent GB-738447-A (GB)
Title: Improvements in or relating to machines organised for stacking hides or skins
IPC: B65H29/44
Filed: 1953-08-22
Abstract: 738,447. Sheet - delivery apparatus. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Aug. 23, 1954 [Aug. 22, 1953], No. 23184/53. Addition to 736,086. Class 100 (1). A machine as described in the parent Specification is provided with workpiece retaining members 28, 100 adapted to engage a leading portion of a workpiece W after the leading portion has been deposited on a work support H and to retain the leading portion on the support until the remainder of the workpiece has been deposited. The inboard pressing member 28 is mounted on a shaft 42 urged by helical springs in an anti-clockwise direction. Also mounted on the shaft is a ratchet member 70 co-operating with a pawl 74 normally urged by springs to engage the ratchet 70. When the conveyer 26 swings from the position shown in Fig. 2 to that shown in Fig. 1 an adjustable screw 88 thereon releases the pawl 74 from the ratchet 70 so that the member 28 is spring urged into work-retaining position. The member 28 is returned to its inoperative position by means of leaf springs 154 on the conveyer 26. The outboard pressing member 100 is mounted on arms 116 adapted to swing about the axis 24. The member 100 is urged into work-retaining position by springs 130 and is operated in timed relation to movements of the conveyer 26 by a stop screw 140 mounted thereon which engages a leather diaphragm 149 on the member 100. The pressing members are made in the form of relatively wide three-prong forks of wood provided with felt pads 34, 106 having bevelled upper edges 36, 108 to avoid catching with the workpieces. The member 28 may be held in inoperative position by a headed shaft 166 mounted in a bracket 168 which engages the part 30. The member 100 may be held in inoperative position by means of a latch 174 pivoted at 134 which engages a bar 112 on the arms 116.
Patent GB-388400-A (GB)
Title: Improvements in the manufacture of artificial silk and other artificial products
IPC: D01F2/30
Filed: 1931-08-19
Abstract: To obtain non-scintillating dry spun artificial filaments, yarns, &c., the spinning solution is made with a solvent mixture containing as regards its main bulk a liquid which is a solvent for the cellulose derivative at normal temperatures, and also a minor proportion of a more volatile liquid.  In the case of acetone-soluble cellulose acetate, this volatile liquid may be a solvent for the cellulose derivative, such as methyl or ethyl formate, or a latent solvent such as methylene chloride, or a weakly-acting or strongly-acting precipitant such as an ether especially diethyl ether, although low boiling petroleum fractions such as petrol ether may also be used; and suitable proportions are say 6-12 per cent of diethyl ether, and 10 per cent to 2 per cent or less of petrol ether. A small percentage of water or alcohol may also be added to facilitate the draw-down of the filaments.  With the use of the above solvent mixtures, it is not essential that the spinning solutions contain a high percentage of the cellulose derivative, and concentrations below 25 per cent down to 15 per cent or less may be used while still producing non-scintillating filaments; and with these latter solutions, spinning speeds up to 400 metres per min. or higher may be employed.  It is advantageous to employ cellulose derivatives of high viscosity characteristics, for example, cellulose acetates obtained according to the process of Specification 207,562, [Class 2 (ii), Cellulose &c.].  To obtain the desired cross section of filament, it is important that the evaporation of the solvent should be rapid during the earlier part of its travel, say, the first two inches; and such rapid evaporation may be secured by introducing additional evaporative medium, heated or not, at the region of the spinning nozzle as described in Specification 325,233, [Class 2 (ii), Cellulose &c.], or by the use of the collector devices of Specifications 300,998, 304,674, 326,232, [all in Class 2 (ii), Cellulose &c.], and 352,922, or by the employment of reduced pressure within the spinning cell, see Specification 324,061, [Class 2 (ii), Cellulose &c.]. Specifications 209,125 and 210,108, [both in Class 2 (ii), Cellulose &c.], also are referred to.
Patent GB-236148-A (GB)
Title: Improvements in or relating to boilers for heating water or for generating steam
IPC: F22B25/00
Filed: 1924-10-03
Abstract: 236,148. Huygen, F. C. June 26, 1924, [Convention date]. Internally-fired boilers.-A boiler comprises a combustion chamber partly surrounded by water tubes which are spaced apart to allow combustion gases to pass between them, a water jacket enclosing the tubes and a header connected to them, and fire tubes placed inside the water tubes and adapted to convey the combustion gases from the space between the tubes and the jacket to the uptake. In a horizontal boiler for heating water, two rows of water tubes 16 around the upper part of the combustion chamber open into a front crescent-shaped water chamber 34 and into a rear circular water chamber 33 The chambers are in communication with the surrounding water jacket 12. The combustion gases pass forwardly through the fire tubes 17 inside the water tubes to the smoke box 20, which is fitted with a vertical baffle plate 42 directing the gases downwardly along the boiler rear plate,
Patent GB-1472340-A (GB)
Title: Up/down counter
IPC: H03M13/00
Filed: 1975-05-29
Abstract: 1472340 Electronic counters STANDARD TELEPHONES & CABLES Ltd 29 May 1975 23426/75 Heading G4A A bi-directional counter comprises a plurality of identical stages A, B, C all connected in parallel between a pair of co-operating constant current circuits CCP, CCN, each stage comprising a complementary transistor bi-stable current switching circuit, and each stage having a capacitive transfer C1, C4 to each adjacent stage and a separate diode gate D1 D4 for each capacitor C1, C4; and a control circuit responsive to input signals of either polarity and comprising a pair of shunting circuits TS1, TS4 and TS2, TS3 each responsive to an input signal of one polarity to present an impedance in parallel with the stages which is lower than any stage in its conducting state and therefore causes the latter to change to a non-conducting condition and two diode clamp circuits CLN, CLP each responsive to an input signal of one polarity and being coupled to respective diode gates D1, D4 whereby one of the diode gates of a conducting stage is biased to inhibit its associated transfer capacitor while the other is biased to allow operation of the transfer capacitor so that the corresponding adjacent stage becomes conducting when the shunting circuit ceases operation at the end of an input signal. Each stage comprises a long-tailed pair of P-N-P transistors T12 and a similar pair of N-P-N transistors T34. The emitters of all the pairs T12 are connected together to one constant current source CCP while those of pairs T34 are connected to CCN. The collectors of each pair are connected to one base of the other pair while the other base is connected to the respective transfer capacitor. The stages may be connected as a ring counter or as an open chain (Fig. 2, not shown) in which case end stages are provided which signal when the count has reached the limit in either direction and reset the counter to an intermediate count.
Patent GB-1154232-A (GB)
Title: Process for the Production of Arylimino-Chlorocarbonyl Cyanides
Inventor: KUEHLE ENGELBERT
IPC: C07C253/14
Filed: 1966-05-25
Abstract: 1,154,232. Aryliminochlorocarbonyl cyanides. FARBENFABRIKEN BAYER A.G. 25 May, 1966 [18 June, 1965; 3 Dec., 1965], No. 23435/66. Heading C2C. Aryliminochlorocarbonyl cyanides are prepared by reacting an aromatic isocyanide dichloride of formula Ar-N=C(Cl 2 ), in which Ar is a phenyl, naphthyl group which may carry at least one halo, nitro, alkyl or alkoxy substituent, in an inert organic solvent with cuprous cyanide in a molar ratio of 1 : 1 at a temperature in the range 100-250 C. The product has the formula Suitable solvents are, for example, o-dichlorobenzene and nitrobenzene. Examples are given of the preparation of the cyanide compounds of the above formula in which Ar represents (a) 3,4-dichlorophenyl, (b) 4-chlorophenyl, (c) 3-nitrophenyl, and (d) p-tolyl.
Patent GB-1176448-A (GB)
Title: Improvements in or relating to Voice Frequency Signalling Systems
IPC: H04Q1/46
Filed: 1968-05-17
Abstract: 1,176,448. Speech immunity signalling. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 17 May, 1968 [22 May, 1967], No. 23488/68. Heading H4R. In a voice frequency signalling system in which frequency components other than the signalling frequencies are used as guard signals to prevent operation by signal imitation in speech, the frequency characteristic of the signal applied to the guard circuit is varied by emphasizing the frequencies in the region of the third formant of normal speech, i.e. the region about 3 kHz.