baber/WOPTO huggingface dataset:
Patent GB-504253-A (GB)
Title: Improvements in radio direction finders
IPC: G01S3/14
Filed: 1938-09-05
Abstract: 504,253. Directive wireless signalling. TELEFUNKEN GES. FUR DRASTLOSE TELEGRAPHIE. Sept. 5, 1938, No. 25935. Convention date, Sept. 8, 1937. Addition to 498,995. [Class 40 (v)] In a parallel-frame direction-finder of the kind described in the parent Specification, the input from the two main frames a, b is switched alternately at d, e to the deflecting plates m of the cathode-ray indicator o, in order to avoid the difficulty of amplifying the voltages at f and g without affecting their phase-relation. The pick-up from the centre frame-aerial c is applied constantly to the deflecting plates k of the indicator. Each aerial produces its own trace as shown at p, q, Fig. 2, and the critical bearing is shown when these coalesce into a single line as shown in Fig. 4. The switches d, e are coupled together so that when one is open the other is closed, and vice versa.
Patent GB-296993-A (GB)
IPC: F28G3/16
Filed: 1928-09-10
Abstract: 296,993. Graafen, F. Sept. 9, 1927, [Convention date]. Cleaning, fluid-pressure processes for.-Steam, blower tubes for cleaning boiler tubes are cooled in the following ways :-(1) While the blower is not in use, water, supplied from a pipe d, Fig. 1, flows through the tube and out through a pipe f; the blower tube is drained before use by a pipe e. (2) Water is kept at a constant level in the blower tubes by communication with a reservoir, the tube being cooled mainly by evaporation. (3) A continuous flow of water is kept running through the tube from one end to another without a longitudinal supply pipe such as f, Fig. 1, appropriate overflow and drainage tubes being fitted. The Specification as open to inspection under Sect. 91 (3) (a) states also that the blower tube b, Fig. 4, (Cancelled), may be jacketed, a liquid such as water being contained in the space around the tube, which is cooled by a radiator r and the space being, if desired, sealed hermetically. This subject-matter does not appear in the Specification as accepted.
Patent GB-338953-A (GB)
Title: Improved means for distilling water on automobiles
IPC: C02F1/16
Filed: 1929-08-27
Abstract: 338,953. Wilson, H. J. Aug. 27, 1929. Boiling and like apparatus, heat from motorvehicle internal-combustion engines, utilizing for.-Apparatus i'or obtaining distilled water by heat from the exhaust of an internal-combustion engine comprises a shallow evaporating vessel 20 mounted on an exhaust pipe 5 and separated by an insulating plate 3 from an impure water reservoir 2 supporting a condenser 1. The various ports are held together by bolts 15 &c. to obviate soldering, and the evaporator is made to conform to the irregular surface of the exhaust pipe by radius bars 9 and springs 7. The water passes from the reservoir 2 through a pipe 10 to the evaporator and the steam passes up through a pipe 11 insulated by a rubber tube 12 to the condenser 1, the upper part of the pipe 11 being encircled by a pipe 13 which acts as a pouring spout for the condenser and also returns blown off drops to the evaporator. The condenser is held in place by headings 18 and a spring clip 16 and is cooled by air currents induced by the radiator fan and the motion of the vehicle.
Patent GB-924410-A (GB)
Title: Improvements in or relating to treatment of uranium hexafluoride
Inventor: BROWN TREVOR JAMES
IPC: B01D53/68
Filed: 1954-09-08
Abstract: Uranium hexafluoride is removed from a gas, e.g. effluent from a gaseous diffusion plant, by passing the gas through a bed of granular anhydrus sodium carbonate which is at a temperature of 150 DEG  to 200 DEG C.  Before use the sodium carbonate may be heated at 110 DEG C. either under low pressure or in air.  Preferably the gas passes downwardly through the bed.  In the example nitrogen containing 0,25% uranium hexafluoride and 0,1% chlorine trifluoride is treated with the sodium carbonate.
Patent GB-710437-A (GB)
Title: Improvements in alloy steel compositions
IPC: C22C38/14
Filed: 1951-11-07
Abstract: An alloy steel having good welding and drawing properties has the following composition .C.0.8 - 0.18 per cent .Mn.1.10 - 2.00 per cent .Si.0.10 - 0.30 per cent .Mo.0.10 - 0.50 per cent .V.0.02 - 0.10 per cent .Ti.0.01 - 0.10 per cent .S.less than 0.025 per cent .P.less than 0.030 per cent .O.up to 0.009 per cent .N.0.010 - 0.025 per cent The steel may be heat treated by subjecting the previously heated steel to two controlled cooling stages of which the first involves cooling from 800 DEG C. to 680 DEG C. and the second from 600 DEG C. to 400 DEG C., the first stage being effected at a rate at least 10 times as fast as the second.  The steel may be initially heated to 850-920 DEG C.  The first and second cooling stages may be effected in periods of between 10 seconds and 10 minutes and between 5 minutes and 100 minutes respectively.
Patent GB-918852-A (GB)
Title: Improvements in mechanical separators
Inventor: TAYLOR ARTHUR HENRY
IPC: B07B7/08
Filed: 1959-07-30
Abstract: A froth breaker or mechanical separator comprises a continuous helical surface, each convolution of which presents a generally conical shape and is spaced from an adjacent convolution with constant axial clearance, the outer edge of the surface being supported at intervals by a rigid support which leaves intervening portions of the outer edge free and projects outwardly beyond the outer edge and which is adapted to support the surface so that each convolution slopes downwards to the outer edge.  As shown in Fig. 1, a helical surface 1 enclosed in a rigid cage is designed to fit in a reaction chamber (not shown), and is formed of six spacer rods 2 fixed at their ends to upper and lower rings 3, 4 respectively.  The helical surface consists of four short helix sections 5 (Fig. 3) each formed from an annulus having a central hole 6 and radial cut 7. Helix sections 5 are inserted into the cage and positioned such that their radial cut edges 7 touch or overlap by a small amount, to form a continuous helix, each convolution of which has the general appearance of a cone. <PICT:0918852/III/1> <PICT:0918852/III/2> <PICT:0918852/III/3> The helix sections are tack-welded to each other on their undersurfaces, as indicated in Fig. 1, by seam lines 8 and to the cage rods at their outer edges.  The preferred slope of the cone is 45 degrees and the preferred helical pitch is about 0,3 times the overall diameter.  In operation, gases rising in the reaction chamber entrain much of a liquid reactant and of solid catalyst particles in the form of froth.  These gases are constrained to flow in a helical path through the apparatus described above and in so doing a swirling action is imparted thereto tending to deposition of liquid reactant and solid catalyst particles on the surface of helix 1.  Liquid and solid run down the sloping surfaces of the helix and are thus protected from re-entrainment. The gaseous phase emerges from the top of the helix.  The Provisional Specification states that a separator as described may be used as a heat exchanger by "screwing" one helical surface into another with clearance and inserting and welding spacer strips or walls along the outer and inner margins respectively, of the helical surfaces to form independent enclosed helical paths for the fluids between which the heat exchange is to take place. Connections can be made to upper and lower convolutions respectively.
Patent GB-262556-A (GB)
Title: Improvements in or relating to trays for supporting or displaying articles
IPC: A47F3/14
Filed: 1925-10-19
Abstract: 262,556. Igranic Electric Co., Ltd., and Curtis, A. H. Oct. 19, 1925. Knock-down boxes; corner joints; stacking, details in connection with.-A box or tray for supporting or displaying articles comprises two side walls 2, Fig. 1, having a cross-section of the form shown in Fig. 3, and end walls 1 bolted thereto by bolts 4 passing through holes in flanges 2<e> on the ends of the walls 2. The base 3 of the box is removable, being adapted to slide between flanges 2<c>, 2d on the walls 2. The walls 1 are flanged at 1<b>, the ends of the walls 2 being cut away at the base to the depth of this flange. Alternatively, the walls 1 may be bolted against the flush ends of the walls 2. Feet are provided on the box. Alternative forms of sections for the walls 2 are described, some of which allow the boxes to be rested together for stacking. The Provisional Specification describes also a construction of box or tray in which all four walls are constructed similarly to the side walls described above.
Patent GB-660459-A (GB)
Title: Improvements in or relating to relay station apparatus for use in telecommunication systems
IPC: H04B7/155
Filed: 1948-10-11
Abstract: 660,459. Carrier transmission. GENERAL ELECTRIC CO., Ltd., ASPIN, J. J. E., and STOVE, J. P. Oct. 11, 1949 [Oct. 11, 1948], No. 26466/48. Class 40 (iv). [Also in Group XL (c)] Part of the signal received by apparatus 1 for retransmission by apparatus 3 at a radio or line relay station is demodulated at 5 to derive a supervisory or other tone which is modulated on the incoming signal. This tone is passed through a phase reverser 6 and is used to remodulate the signal to cancel at least in part the existing tone modulation so that by operating a circuit interrupter 8 the succeeding stations may be signalled. The invention is described with reference to an F.M. radio system of the type described in Specification 654,016, [Group XL (c)], and includes an attenuator 7 to adjust the level of the remodu- 1ating tone. The interrupter is a telephone dial and may be arranged to operate lamps or a calling bell at the succeeding station in accordance with the code signal dialled.
Patent GB-352309-A (GB)
IPC: C01B25/40
Filed: 1930-09-05
Abstract: Mono- or di-ammonium phosphate, or mixtures of these, with or without other ammonium salts, are obtained by treating crystallized tri-ammonium phosphate with a strong solution of an acid, e.g. phosphoric, sulphuric, hydrochloric, or nitric acid. In the examples, (1) triammonium phosphate is mixed with phosphoric acid containing 50 per cent of P2O5 until the product is neutral to phenolphthalein. The product is dried in vacuo at 60 DEG  C., or the solid di-ammonium phosphate may be separated from the saturated aqueous solution by centrifuging or by filtration.  (2) Nitric acid is substituted for the phosphoric acid used in Ex. (1).  A mixture of ammonium nitrate and di-ammonium phosphate is obtained.  (3) Hydrochloric acid is substituted for the phosphoric acid used in Ex. (1).  A mixture of ammonium chloride and di-ammonium phosphate is obtained.  (4) Mono-ammonium phosphate mixed with neutral ammonium sulphate is obtained by treating triammonium phosphate with sulphuric acid in the molecular proportion of 1 : 1.  The temperature rises during the operation, so that much water is evaporated.  The final drying may be carried out in any known manner.ALSO:Mono- or di-ammonium phosphate, or mixtures of these with or without other ammonium salts are obtained by treating crystallized tri-ammonium phosphate with a strong solution of an acid, e.g. phosphoric, sulphuric, hydrochloric, or nitric acid.  In the examples, (1) tri-ammonium phosphate is mixed with phosphoric acid containing 50 per cent of P2O5 until the product is neutral to phenolphthalein.  The product is dried in vacuo at 60 DEG  C. or the solid di-ammonium phosphate may be separated from the saturated aqueous solution by centrifuging or by filtration.  (2) Nitric acid is substituted for the phosphoric acid used in example (1).  A mixture of ammonium nitrate and diammonium phosphate is obtained.  (3) Hydrochloric acid is substituted for the phosphoric acid used in example (1).  A mixture of ammonium chloride and di-ammonium phosphate is obtained.  (4) Monoammonium phosphate mixed with neutral ammonium sulphate is obtained by treating triammonium phosphate with sulphuric acid in the molecular proportion of 1 : 1. The temperature rises during the operation, so that much water is evaporated.  The final drying may be carried out in any known manner.
Patent GB-1513704-A (GB)
Title: Dyeing compositions containing dihydroxy coupling agents
IPC: A61K8/40
Filed: 1976-06-25
Abstract: 1513704 Preparation of 2 - methyl - 5- (N - # - hydroxyethylamino) - phenol L'OREAL 25 June 1976 [26 June 1975] 26590/76 Heading C2C [Also in Division D1] 2 - Methyl - 5 - (N - # - hydroxyethylamino)- phenol is prepared by reacting #-chloroethyl chloroformate with 2 - methyl - 5 - amino - phenol in dioxane, to produce # - chloroethyl(4<SP>1</SP> - methyl - 5<SP>1</SP> - hydroxyphenyl) - carbamate which is reacted with sodium hydroxide at 45 C. to effect cyclization and eliminate HCl, the product being N - (4<SP>1</SP> - methyl - 5<SP>1</SP> - hydroxyphenyl) - 1,3- oxazolidin - 2 - one which when reacted with sodium hydronide at 70 C. ring opens to form 2 - methyl - 5 - (N - # - hydroxyethylamino)- phenol.
Patent GB-1499715-A (GB)
Title: Heat exchange apparatus with self-centreing snap-on fan shroud
IPC: F01P11/10
Filed: 1976-06-25
Abstract: 1499715 Cooling motor vehicle radiators CATERPILLAR TRACTOR CO 25 June 1976 [16 Oct 1975] 26636/76 Heading B7H In a tractor vehicle including a fan shroud 22 partially surrounding a cooling fan 12 mounted adjacent a radiator 11, the shroud 22 is a one-piece moulding of fibre reinforced synthetic resin having integral mounting means for snapon fitting of the shroud 22 to the radiator 10 and integral biasing means for urging the shroud into a centred position relative to the fan 12. The shroud 22 has resilient top and bottom walls 25, 26 which are formed with slots 30 so that they can be snap-fitted: over some of bolts 18, 21 attaching top and bottom tanks 15, 19 to the core 16 of the radiator 10. Resilient sidewall portions 27, 28 of the shroud 22 engage the sidewalls 31 of the radiator 10 to centre the shroud in a horizontal direction.
Patent GB-170003-A (GB)
Title: An improved fluid tight joint
IPC: F16L27/087
Filed: 1921-10-08
Abstract: 170,003. DlcMullan, R. Oct. 8, 1920, [Convention date]. Hinge and swivelling jonts ; joints with packing operated by fluid pressure. - In a fluidtight joint between two relatively movable hollow members, the junction made by the edge of one abutting against a collar or shoulder on the other is sealed by a plain band of elastic material the outer surface of which is acted upon by the fluid pressure to maintain its effectiveness. The hollowmember 10 of the lesser diameter, is provided with a shoulder 12. A collar 13 is fitted over the end of the member 10 and is rotatable round this member on the shoulder 12. The hollow member 11 of the larger diameter is integral with, or attached by screws to, the collar 13, so as to rotate with it. The end of the member 10 is fitted with a head 16 after the collar 13 has been placed in position, the head fitting on the upper face of the collar to form the joint at the meeting edges 19. To make this joint fluid-tight, a shoulder 15 is provided on the collar 13, and, if desired, a similar shoulder 17 on the head 16. Between these shoulders is placed a band 18 of pliable or flexible material, which is forced' against the sides of the head 16 and the collar 13 by the fluid pressure, thereby preventing any leakage through the joint 19. This arrangement allows the member 11 to rotate with the collar 13, on the member 10 without decreasing the effectiveness of the flexible band.
Patent GB-1047139-A (GB)
Title: Information transfer system
IPC: G06K13/30
Filed: 1964-06-26
Abstract: 1,047,139. Feeding webs. OMNITRONICS Inc. June 26, 1964 [July 16, 1963], No. 26657/64. Heading B6B. [Also in Division G5] A photo-electric tape reader system has a drive arrangement 27 and a brake arrangement 24 disposed on opposite sides of the read head 25 and arranged to continuously grip the tape both in the energized and de-energized conditions so as to prevent inadvertent movement of the tape as it is displaced past the read head. In the brake arrangement (Fig. 9) the tape passes between an electromagnet arrangement 118 and a spring-loaded magnetic piece 119 which exerts continuous pressure on the tape. When the brake is switched on the pressure is increased. In the drive arrangement the tape passes between a drive roller 45 and a pinch roller 154 (Fig. 10) which is spring-biased to engage the tape. The drive is applied by engaging the magnetic arrangement 145 to increase the pressure applied by the pinch roller. The photo-electric head reads the tape in a non-specular manner; no attempt is made so ensure that angles of incidence and reflection of the light on the tape are made such that maximum light reflection is obtained. A narrow collimated beam of light N obtained from an optical system behind the plate 37 is used to illuminate the tape (Fig. 2, not shown) and the reflected light is received by photodiodes contained in the housing 25. A tape guide roller 26 is used to guide the tape past the head, and this guide is adjustable for different tape widths (Figs. 3 and 4, not shown). The guide may also be situated in a different position, at hole 43, to alter the angle of the tape direction relative to the read head so that specular reading may be used, particularly for chadless tape. Details of the control circuitry for the brake drive arrangements are given.
Patent GB-362509-A (GB)
Title: Improvements in or relating to electrical induction motors
IPC: H02K17/08
Filed: 1930-09-06
Abstract: 362,509. Induction motors. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., FRASER, I. S. and JOHNSON, E. N., 10, Wells Road, Regent's Park, London. Sept. 6, 1930, No. 26670. [Class 35.] In order to adjust the difference of phase in the two windings of a splitphase induction motor of the Ferraris or other type, an adjustable capacity is connected with series with one of the windings and an adjustable resistance with the other. In the arrangement shown the winding 12 is connected to a set of resistances 30, 32, &c. and the winding 13 to a set of condensers 16 .. 22. One of the supply leads is connected to the junction of the winding 12, 13 and the other to the other terminal of the condenser 16. By means of a series of switches 23 .. 28 of the telephone jack type different combinations of the condensers and resistances can be put in circuit. The jack 26 puts the resistances 32 in circuit without any of the condensers.
Patent GB-357359-A (GB)
Title: Improvements in or connected with the mechanical knitting of hose, underwear and thelike
IPC: D04B1/26
Filed: 1930-09-08
Abstract: 357,359. Knitting hosiery. CAMPBELLS & STEWART & McDONALD, Ltd. and HICKINBOTTOM, S. J., 137, Ingram Street, Glasgow. Sept. 8, 1930, Nos. 26716 and 30821. [Class 74 (i).] To fashion a stocking leg in a machine of the superposed-cylinder type, by insertion of supplementary ribs all round the leg the lower sliders corresponding to the supplementary ribs are provided with transfer butts of different lengths while a transfer cam acts upon them in stages. Alternatively, the transfer cam may have a varying dwell and act on transfer butts of equal length. These butts are shorter than the transfer butts of the sliders corresponding to the primary ribs. The needles are transferred for supplementary ribbing by the action of rises 20 of progressively increasing length on a push-rod 23 connected to the transfer cam. Thus the slider or sliders at the back centre line of the hose are first engaged, then the adjacent sliders and so on. The cam wheel with rises 20 is fed round by a ratchet having a tooth missing, until the gap comes under the driving pawl. Prior to the commencement of secondary ribbing this pawl is given an extra throw, sufficient to set the ratchet going, by a cam 30 on a drum 51. In a modification the transfer cam is put in by cams on the face of a disc mounted on the end of the drum, the transfer butts being of graded length in this case.
Patent GB-1161178-A (GB)
Title: Improvements in and relating to Polyurethane Polyepoxides.
IPC: C08G18/10
Filed: 1967-06-09
Abstract: 1,161,178. Polyurethane polyepoxides. TREMCO MFG. CO. 9 June, 1968 [14 June, 1966], No. 26761/67. Headings C3B and C3R. Polyurethane polyepoxides are prepared by reacting an organic triol or a mixture of an organic triol with an organic diol having an average molecular weight of 1000 to 7000 and an average functionality in excess of 2À3, with an organic polyisocyanate to provide an isocyanate group-terminated polyurethane prepolymer which is then reacted with an hydroxylated material containing an epoxide group or with a compound containing a group capable of being epoxidized in situ. The polyurethane polyepoxide may then be cured through its epoxide groups to form an elastomeric polymer. Conventional polyether and polyester triols and aromatic or aliphatic polyisocyanates may be used to form the polyurethane prepolymer. Suitable hydroxylated materials containing an epoxide group are glycidol and 2-alkyl glycidols wherein the alkyl group contains 1 to 4 carbon atoms. Compounds which may be epoxidized in situ are alkylene glycol monoacrylates or monomethacrylates. A monofunctional hydroxyl compound may also be reacted with the polyurethane prepolymer. The polyurethane polyepoxide may be cured with an organic polyamine, acid or anhydride, and may be filled with fillers such as carbon black, talc, calcium carbonate and silica.
Patent GB-1097680-A (GB)
Title: Hinge, especially for metal doors
IPC: E05D5/02
Filed: 1965-06-24
Abstract: 1,097,680. Hinges. HEINZ SCHURMANN & CO. June 24, 1965 [June 25, 1964], No. 26776/65. Heading E2F. Hinge arms 1, 2 are secured to a door and lintel respectively by screws that are not accessible from the outside of the door or lintel-- even when the door is open. Removal of a cover plate 20 on the lintel gives access to a bolt 17 securing a claw 15 on the arm 2 against a flange 16 on the lintel. The arm 1 is secured by a bolt 6 and a screw 13, the screw 13 passing through a threaded bore 7 in the bolt 6 and engaging a batten 8 which may be integral with a frame member 5. The arm 1 also has a flange 9 secured by screws 10. The screws 10 may be dispensed with and the screw 13 may be used also as a fixing screw for the flange 9. In a modification, the screw 13 may have a conical tip to engage the inclined top surface of the batten 8. The arms 1, 2 may be mutually adjustable in height by providing a threaded screw passing through the longitudinal axis of the hinge pin. Rotation of the screw adjusts the arms 1, 2 relative to each other.