baber/WOPTO huggingface dataset:
Patent GB-849137-A (GB)
Title: Phenothiazine derivatives and their preparation
IPC: C07D417/06
Filed: 1958-08-19
Abstract: The invention comprises compounds of the general formula: <FORM:0849137/IV(b)/1> and their acid addition and quaternary ammonium salts (wherein X represents a hydrogen or halogen atom or a C1-5 alkyl or alkoxy radical, Y represents a straight or branched C2-5 alkylene radical, and R represents a hydroxy-or acyloxysubstituted C1-5 alkyl radical or (in position 3 or 4 of the piperidine ring only) a hydroxy or acyloxy radical), and the preparation thereof by interaction, in the presence of an acid acceptor, of a corresponding phenthiazine and hydroxypiperidine one of which bears a halo-Y-radical attached to nitrogen, followed if desired by esterification of compounds containing a free hydroxy radical.  The products are useful as hypotensive agents, antinauseants, antipyretics and sedatives.ALSO:As hypotensive agents, antinanseants, antipyretics and sedatives may be employed phenthiazine derivatives of the general formula:  <FORM:0849137/VI/1> (wherein X represents a hydrogen or halogen atom or a C1-5 alkyl or alkoxy radical, Y represents a straight or branched C2-5 alkylene radical, and R represents a hydroxy- or acyloxysubstituted C1-5 alkyl radical or (in position 3 or 4 of the piperidine ring only) a hydroxy or acyloxy radical), preferably in the form of acid addition or quaternary ammonium salts.  They may be administered by injection of solutions of the salts in water or a physiologically compatible medium such as saline, or orally in the form of tablets or capsules.
Patent GB-987215-A (GB)
Title: Improvements in or relating to the applications of tunnel diodes
Inventor: BICKERS ARTHUR
IPC: H03B19/16
Filed: 1960-08-02
Abstract: 987,215. Frequency changing. PLESSEY CO. Ltd. Sept. 29, 1961 [Aug. 2, 1960], No. 26694/60. Heading H2F. [Also in Division H3] Tunnel diodes are used as frequency multipliers. In an arrangement employing a single diode, the diode 1, Fig. 1, is connected in series with a low impedance source of oscillations, 2, a decoupled bias source 2A and the low impedance primary 3 of a transformer, the secondary 4 of which is tuned-to the desired harmonic frequency by means of capacitor 5. By biasing the diode to the bottom bend in the characteristic, second harmonic may be obtained (Fig. 2, not shown), while by biasing to the centre of the negative impedance portion of the characteristic and driving past both top and bottom bends third harmonic is obtained (Fig. 3, not shown). In a modification which obviates the need for fixed bias, two tunnel diodes 13, 14, Fig. 4, are connected back-toback. The resulting characteristic is such that by driving between the bottom bends 19A, 19B (Fig. 5) third harmonic is obtained, while a greater drive will give fifth harmonic (Fig. 6, not shown).
Patent GB-848083-A (GB)
Title: Improvements in or relating to necklaces and the like
IPC: A44C5/10
Filed: 1956-08-31
Abstract: 848,083. Jewellery. WHEELER, L. R., and GRIFFIN, H. C. Aug. 31, 1956, No. 26724/56. Class 43 [Also in Group XXV] A unit for jewellery comprises at least two links I interconnected by an integral central or body portion, the unit being formed of a resilient plastic material and at least one of the links being split whereby two of the units may be interconnected by engaging a split link or a non-split link of the other unit in such manner as to deform the split link or links to cause interlinking by a snap action. The central portion joins links in the same plane or in planes at right angles and may have the form of a cross-bar 2, a plate; ring or the like which may have a bead snapped in the aperture, or spherical or the like surrounded by a beading secured to the links. The links may have various shapes. More than two split links may be integral with the unit for more than one row of units or for attaching a pendant.
Patent GB-1198154-A (GB)
Title: Method of Treating Textiles to Render them Water-Repellent
IPC: D06M13/402
Filed: 1968-06-05
Abstract: 1,198,154. Water-proofing; softening. SHOWA DENKO K.K. and TOKAI SEIYU INDUSTRIAL CO. Ltd. 5 June, 1968 [5 June, 1967; 23 Feb., 1968], No. 26739/68. Heading D1P. [Also in Division C2] Textile material is treated with a composition consisting of a dispersion in a liquid of 0.1-3% of a diamide derived from m- or .pxylene diamine and a C 8-22  carboxylic acid. The acid may be stearic, palmitic, or tallow fatty acid. The dispersing liquid may be a C 1-4  alcohol, acetic acid ester, benzene, toluene, cyclohexane, acetone, methyl ethyl ketone, dioxane, or water containing a hydrophilic organic solvent or surface active agent. The textile material may be of cotton, wool, rayon, acetate, polyester, polyamide, polyacrylonitrile, or polyvinyl alcohol. It may be dipped in, or brushed or sprayed with, the composition and then heat-treated at 1130-150‹C. for 3-4 min.
Patent GB-337521-A (GB)
Title: Improvements in the manufacture and production of materials suitable for road construction, coating purposes and the like from asphalt, tar and the like
IPC: C08L95/00
Filed: 1929-09-04
Abstract: 337,521. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 4, 1929. Emulsions, making. - Coating materials are made, by incorporating bituminous materials such as natural or artificial bitumens, mineral or brown coal tars and the like, or their distillation products with synthetic polymerization products of diolefines, preferedly of butadienes. The quantity of the polymerization products employed may be as low as 0.5 per cent or even 0.1 per cent by weight of the bituminous materials, but it may be increased to as much as 20 per cent if desired. The incorporation may take place in the presence of diluents, e.g. benzol or cyclohexanol, and the mixture may be emulsified with. water at any stage of its production, if desired in the presence of emulsifying agents such as alkali metal or ammonium linoleates or oleates, Turkey red oil and the like with or without a buffer system maintaining preferably a hydrogen. ion concentration between pH = 4 and pH = 8.4. The products may be used for road covering or lining vessels. Example, 35 parts oleic acid are stirred into 1000 parts of Mexican asphalt heated to 110‹ C., the mixture cooled to 90‹ C., and 180 parts of a 1 per cent aqueous solution of ammonia added slowly, after which 150 parts of a dispersion of butadiene polymerization product of 50 per cent concentration, prepared by taking 400 parts bv volume of butadiene, 15 parts of ammonium linoleate, 5 parts of ammonium oleate, 10 parts of sodium carbonate 2 parts of disodium phosphate, 10 parts of a 30 per cent solution of hydrogen peroxide, 75 parts of a 5 per cent solution of glue and 450 parts of water, and emulsifying in a pressure vessel, are added at 50‹ C. Specification 312,201, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-798874-A (GB)
Title: Improvements relating to slicing machines
Inventor: DUYN ADRIANUS VAN
IPC: B26D1/14
Filed: 1955-09-21
Abstract: 798,874. Slicing machines. MAATSCHAPPIJ VAN BERKEL'S PATENT N.V. Sept. 17, 1956 (Sept. 21, 1955], No. 26927/55. Class 28 (2). [Also in Group XXIV] In driving the disc knife shaft 23 of a slicing machine from a motor shaft 13 by belts 26, 27 and a countershaft 20 the tension of the belts can be increased but only to a determined limit by pushing the countershaft bracket away by a screw 19, Fig. 4, which is arranged to slip at the determined limit. Excessive resistance causes the screw 19 to retreat by compressing its spring 30 whereby its nut 29 retreats from the stop 32 acting on its. flats so that the screw 19 and nut 29 turns idly without any more advance. The head of the screw protrudes through a hole in the casing for easy access by a screwdriver. The countershaft carrying bracket 16 slides between guides 17 and 21 (Fig. 3, not shown) on each side. The arrangement may also be applied to a, direct single belt drive.
Patent GB-452894-A (GB)
Title: Improvements in electric cable dielectrics
IPC: H01B9/06
Filed: 1935-09-30
Abstract: 452,894. Cables. COMPAGNIE GENERALE D'ELECTRICITE, 54, Rue La Boetie, Paris. Sept. 30, 1935, No. 27013. Convention date, Oct. 8, 1934. [Class 36] In an electric cable the insulation of which consists partly of gas, either a compound gas of molecular weight greater than 50 or a mixture of compound gases and of simple gases, whose mean molecular weight is greater than 50, is used. The gases used are (1) hydrocarbons obtained from the distillation of coal or petrolemn, (2) methylene or ethylene derivatives, (3) gases containing fluorine, bromine, chlorine or silicon, (4) mixtures of simple gases and of the above gases. Tables are given in the Specification of the relative merits of various gases. The following are examples of the heavy compound gases which may be used : methyl chloride, butane, ether, chloroform, ethyl bromide, or mixtures of chloroform 80 per cent and carbon tetrachloride 20 per cent, ethyl bromide 30 per cent and butane 70 per cent, butane 50 per cent and carbon dioxide 50 per cent, ethyl bromide 15 per cent, butane 35 per cent and carbon dioxide 50 per cent. To prevent the formation of voids in a cable having impregnated paper insulation, the cable is impregnated with a compound in which gas is dissolved under pressure, the pressure being maintained on the compound during the impregnating and cooling operations.
Patent GB-438390-A (GB)
Title: Improvements in protective arrangements for electric motors
IPC: H02H7/085
Filed: 1934-09-20
Abstract: 438,390. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, SMART, N. C., and CHUBB, A. A., c/o General Electric Co., Stoke, Coventry. Sept. 20, 1934, No. 27025. [Class 38 (v)] An arrangement for cutting out an electric motor on the occurrence of a moderate permanent overload, or of an excessively large momentary overload, comprises a discharge tube, e.g. a neon tube 15, a condenser 4, a relay 20, and a resistance 11, with means for applying to these parts an E.M.F. proportional to the current supplied to the motor. In one arrangement, Fig. 1, applied to a threephase motor having a stator 5 and rotor 6 with starting resistances 7, the resistance 11 is connected to the secondary side of a transformer 9 in the supply circuit to one of the phases of the stator. The potential across the resistance 11 is applied through a rectifier 10 and variable resistance 14 to the condenser 4, which is connected in parallel with a coil of the relay 20 and the neon tube 15. Under overload conditions, the condenser is charged to a potential sufficient to light up the tube, whereupon the relay responds and short-circuits the tube at 23, completes a temporary hold-on circuit for itself at 21 and opens at 24 the circuit of the hold-on coil 2 of the main switch 3. In a modified arrange. ment, Fig. 2, applied to a D.C. motor 5, 6, a resistance 9 in the motor circuit applies a negative bias to the grid of a thermionic valve 10, the anode circuit of which is supplied through the resistance 11 and the filament heating circuit through a resistance 12. Under normal conditions, the potential drop in the resistance 11 is sufficient to prevent the condenser 4, which is connected to the anode of the valve 10 through the variable resistance 14, from being charged to a sufficient potential to light up the neon tube 15. Under overload conditions, the current through the resistance 9 increases, causing an increase in the bias of the valve 10 and consequential decrease in the current through the resistance 11 and the valve. This increases the anode potential of the valve, and raises the potential across the condenser, which, if it rises to a sufficient value, causes the relay 20 to operate and to de-energize the hold-on coil 2 of the main switch 3.
Patent GB-726049-A (GB)
Title: Improvements in combs for treating the scalp
IPC: A45D24/24
Filed: 1953-10-02
Abstract: 726,049. Combs. JABERG, W. Oct. 2, 1953 [Oct. 8, 1952], No. 27027/53. Class 131. In a comb for treating the scalp with liquid or ointment discharged through apertures at the free ends of the teeth, the teeth are longitudinally bored and each is provided with a spring-closed valve having a cone provided with a pin for opening the valve and passing, with clearance, through the bore to project from the free end of the tooth. As shown, a sleeve 8 screwthreaded at 7 into each bore 4 presses a packing ring 6 against a shoulder 5 to form a valve seating for a valve cone 10 carried by a sleeve 9 tightly fitted on a pin 11 and urged to closing position by a spring 14, the other end of which rests against a cross-bar 12 of the screw head 7. The cross-bar has a guiding aperture for the upper end of the pin 11 and forms a stop for the upper end of the sleeve 9, preventing complete inward movement of the' projecting part of the pin 11 and clogging of the bore by foreign matter, but permitting sufficient movement to open the valve and allow treating substance to flow from the container 16 to the openings at the free ends of the teeth when the comb is pressed lightly against the scalp. Treating substance may be pumped to the openings in the teeth by pressing the elastic sides of the container or a bulb 18.
Patent GB-749268-A (GB)
Title: Improvements in and relating to electrical apparatus
IPC: H03H5/00
Filed: 1953-10-02
Abstract: 749,268. Inductors. OAK MFG. CO. Oct. 2, 1953 [Oct. 2, 1952], No. 27075/53. Class 38 (2). [Also in Groups XXXVI and XL (c)] A radio-frequency tuner comprises a stator member, Fig. 7, having an inductive loop portion 39 and two condenser-plate portions 44, 45 which co-operate with rotor plates 23, 24, 25, 26, Fig. 9, mounted upon an insulated shaft 20. The plates 23, 24, are connected together by one end of a strap 34, and the plates 25, 26, are similarly connected together by the other end of the strap, the two pairs of rotor plates being interconnected by an inductive portion 35 of the strap 34. An insulating plate 56 is attached to the stator member for steadying the condenser portions 44, 45. A further set of stator plates 27, 28, 29, 30 co-operate with a further stator member, Fig. 8, having a split inductive loop portion for connection into the anode-grid circuit of a local-oscillator valve 73, Fig. 5. Capacitive and inductive trimmers are also provided. A plate 65, Fig. 5, carried by a threaded bolt co-operates with ears 51, 52 formed on each pair of condenser plates 44, 45, for capacitive trimming, and a brass slug 62 carried by a threaded bolt may be adjusted with respect to the inductive-loop portion 39 of each stator for inductive trimming. In the operation of the tuner, the lowest frequency is obtained when the rotors completely surround the condenser plates 44, 45. The capacity in the circuit is then at its greatest and also the inductive loops 35 have their greatest effect. The highest frequency is obtained when the rotor plates are rotated to be adjacent the arms 40, 41 of the inductive-loop portions 39. In this case, in addition to the capacity having its smallest value, the inductance of each loop 39 is reduced by the proximity of the rotor plates thereto, while the loops 35 have no influence on the circuit.
Patent GB-633073-A (GB)
Title: New method of manufacturing electrical contact brushes
IPC: H01R43/12
Filed: 1946-09-10
Abstract: Carbon brushes comprise an electrically conductive porous agglomerated carbon or natural or artificial graphite incorporating one or more oxidising agents.  The brush is preferably impregnated with a concentrated aqueous solution of one or more oxidising compounds such as nitrates, perchlorates, iodates, chromates, polychromates, molybdates, tungstates, manganates, permanganates, or antimoniates, particularly of alkali or alkaline earth metals and the solvent is evaporated to leave the dried compound at least in the operative part of the brush.  The impregnation may be with cold, hot, or boiling solution, or at higher temperatures under pressure provided the compound is not reduced and it may be carried out either before or after forming the brush.  Immersion may be for 1/2 -24 hours and under vacuum to increase the adsorption, while pressure may be applied after immersion to accelerate the adsorption; the solvent is evaporated under atmospheric or preferably reduced pressure. Finally the brushes may be treated with lubricants or water repellents, e.g. mineral oil, "Vaseline" (Registered Trade Mark), paraffin, natural fatty substances, or synthetic resins. The brushes may have temporary coatings of nitrocellulose or acetocellulose to protect the salts during storage.
Patent GB-369193-A (GB)
Title: Improvements in the methods of producing and fining ferrous metals
IPC: C21C7/00
Filed: 1930-09-11
Abstract: In the refining of iron, suitably selected oxides or salts are added to the slag during or after the fining process and the iron &c. is agitated by any suitable means, the operation being preferably carried out during the blowing or after blowing stage in a converter. The salts &c. may comprise carbonates, chlorides, borates or sulphates of sodium potassium, barium, calcium or magnesium or sylvinite, either singly or mixed.  Nitrates and chromates may also be added.
Patent GB-533061-A (GB)
Title: Improvements in device for indicating the hardness or springiness of wire strands
IPC: G01N3/20
Filed: 1939-10-04
Abstract: 533,061. Testing hardness of wire strands. SYNCRO MACHINE CO. Oct. 4, 1939, No. 27181. Convention date, April 8. [Class 106 (ii)] The hardness or springiness of a wire strand is tested by a device comprising a support 1, a guide member 2 in the support, means for guiding the wire parallel to the guide member and movable means, pulleys 9, 11, between the guide and wire for deflecting the latter transversely of its length. The guide 2 is graduated and distanced from the support while the wire is supported on pulleys 5, 7. Between wire and guide are two pulleys 9, 11 loose on a pin 10. If the wire is passed through from left to right after heat treating the pulley device tends to move to the right in proportion to the hardness of the strand. In a modification, the guide 2 is dispensed with and two sets of pulleys as 5 and 7 used. An untreated wire is passed over the upper pair and a treated wire over the lower pair with pulleys in between as in Fig. 1. Scales parallel to and transverse to the wires are provided so that movements of the movable pulleys can be read off. The central pulleys may be provided with holes relative movement of which may be observed. 533,062. Linear-dimension gauges. AKTIEBOLAGET C. E. JOHANSSON. Oct. 4, 1939, No. 27197. Convention date, Oct. 8, 1938. [Class 106 (ii)] Each gauge block set is provided with at least two additional blocks 1 each of which is provided, in addition to an accurately plane measuring surface a, with a ridge or ridges b opposite this plane surface the top generatrix of which is positioned in a plane parallel to the plane surface a and is located at a distance m therefrom which is the dimension of the block, one such block being used at each end of a group of blocks building up a dimension. This arrangement obviates the necessity of using reference discs for checking the dimension under working pressure which is now necessary in addition to the ordinary blocks by which the nominal dimension is set owing to the flexibility of the gauge. As shown, the ridge b extends in the diagonal direction of the block so that its top generatrix c forms an angle " x " with the longitudinal centre line d-d of the block. The ridge b must be so shaped that its top generatrix c lies in a plane e-e parallel to the surface a. When at the ends of a group of blocks, the ridges b of the two end blocks are so located that their top generatrices c cross each other. These end blocks may be made of hard metal, or may be plated with chromium. In a modification, the end blocks are made about twice as long as the intermediate blocks, the group being placed in the usual holder, with the end blocks projecting. A block may be used between the projecting ends to stop springiness. In the forms illustrated the ridges are segments of cylinders, but they may be triangular, curved or interrupted.
Patent GB-641818-A (GB)
Title: Improvements in and relating to carbon pile regulators
Inventor: WORTHING NICOLAS
IPC: H02P9/22
Filed: 1947-10-09
Abstract: 641,818. Automatic regulators. HARLAND ENGINEERING CO., Ltd. Oct. 9, 1947, No. 27191. [Class 38 (iv)] In a carbon pile regulator a correction proportional to the velocity of the actuating member is applied to the pile. As shown, Fig. 1, the pile 18 is compressed by the actuating member, spindle 1, through lever 4, cup 6, spring 7, piston 8 and levers 16, 14. Cup 6 and the lower portion of container 2 are filled with a suitably viscous fluid so that at high rotational speeds of 1, the movement is transmitted to 18 mainly through the fluid interposed between 8 and 6, while at lower operating speeds fluid escapes through annular leak gap 10 sufficiently rapidly to permit spring 7 to transmit the movement.
Patent GB-767589-A (GB)
Title: Apparatus for producing hollow moulded plastic articles
IPC: B29C49/30
Filed: 1953-10-05
Abstract: 767,589. Blow-moulding hollow plastic articles. SINCLAIR, A. W., and FRASER & GLASS, Ltd. Oct. 1, 1954 [Oot. 5, 1953; Sept. 29, 1954], Nos. 27267/53 and 28089/54. Class 87(2). When the mould sections S of a mould assembly M that incorporates a blowing nozzle 4 have closed upon a length of plastic tube that has been extruded from a die 2a, the mould assembly moves downwardly away from the die, leaving room below the die for the extrusion of a further length of tube whilst the first length is blown and hardens in the mould below. The mould assembly is supported by a platen 3A slidable on standards 3B and the platen is connected by rods 5 to a crosshead 6 secured to the extrusion plunger 1, so that the mould and plunger move as one. The plunger is moved by a hydraulic ram 7. When the plunger descends to extrude a length of tube the mould enclosing the previously-extruded length, breaks the latter away cleanly from the nozzle. Cycle of operations. (1) A length of tube having been extruded, plunger 1 rises, thereby effecting a gravity material feed to extrusion cylinder 2 and raising M so that the blowing nozzle 4 enters the tube ; (2) As M reaches its highest point it operates compressed-air cylinders 9 to close the mould ; (3) As the mould closes it reverses a hydraulic valve to cause plunger 1 and mould assembly M to descend. When the mould is closed air pressure builds up in cylinders 9 and passes thence through a sequence valve to nozzle 4 to blow the article ; (4) When the mould reaches the bottom of its stroke it cuts off the air supply from the article and from cylinders 9, whereupon (5) the mould opens, releasing the article. A spring 19 that has been compressed during the descent, thereupon (6) via linkage 20, tilts nozzle 4, with the article, to the broken-line position, Fig. 2 ; (7) As the nozzle tilts it makes connection with another source of compressed air, Fig. 3 (not shown), which (8) blows the article off the nozzle onto a trap 16, the impact of the article (9) reversing the hydraulic valve and causing plunger 1 and the mould assembly to rise, whereupon the cycle is repeated. If the article is not blown onto the trap the cycle will not be re-started. Specification 697,326 is referred to.