baber/WOPTO huggingface dataset:
Patent GB-774033-A (GB)
Title: Improvements in or relating to metal pipes for conveying liquid, and the cathodic protection of such pipes
Inventor: RANDALL JACK HORACE PERCIVAL
IPC: C23F13/02
Filed: 1955-03-11
Abstract: 774,033. Metal pipes. HUGHES & CO., Ltd., F. A. March 2, 1956 [March 11, 1955], No. 7213/55. Class 99(2) [Also in Group XVIII] In a metal pipe 10 provided with cathodic protection, a deflector 20 is mounted in the pipe and upstream of an electrode 14 and is shaped to cause solid particles in the liquid flowing in the pipe to be propelled out of the path of the liquid reaching the electrode. As shown, the pipe is provided with axially spaced bosses 11, 12 the electrode 14 having an enlarged part 15 screwed into the boss 11 and being held against displacement by a nut 16 and a packing ring 17, and, the deflector 20 of aerofoil cross-section being screwed into the boss 12; the deflector is formed with a flange 22- which seats on a packing ring 23. In a modification, the pipe is provided with an opening closed by a plate 30, Fig. 4, to which is bolted'a ring 32 carrying four radial arms 33 which are of aerofoil cross-section and arranged so as to impart to the liquid a rotary motion whereby solid particles in the liquid are projected outwardly by centrifugal action and away from the electrode. The deflectors may be made of steel, silicon iron, an alloy metal or ceramic, and' covered with an abrasive-resistant coating such as hard rubber or a plastic.
Patent GB-525998-A (GB)
Title: Improved method of transmitting electric power
IPC: H02J17/00
Filed: 1939-03-06
Abstract: 525,998. Generating high-frequency oscillations. BLUE, A. H., and WOOD, R. D. March 6, 1939, No. 7234. [Class 40 (v)] Apparatus for transmitting electric: power without wires comprises a high frequency alternator A, a step-up transformer B, a rotary interrupter E and a condenser I and oscillating coils. As shown a tuning coil H is provided and a transformer G coupling the apparatus to an aerialearth system LK. At the receiver a coil, which may have an iron core, is connected in an aerial circuit and to a step-down transformer supplying the load. Reference has been directed by the Comptroller to Specifications 1555/00, [Class 40], 2617/11, 19763/12 and 120,570, [all in Class 40 (v)].
Patent GB-636584-A (GB)
Title: Improvements in the mounting of pictures, photographs, designs, letter-press and the like
IPC: A47G1/06
Filed: 1948-03-10
Abstract: 636.584. Picture &c. mounts. HOARE, R. R. March 10, 1948, No. 7299. [Class 11] A display device, picture, photograph, design, letter-press or the like is formed by mounting the display matter behind a hardened sheet of clear or translucent thermosetting resin and adhesively affixing it thereto. The front sheet may comprise a transparent or translucent sheet, e.g. of paper, impregnated with resin hardened under heat and pressure or a clear resin sheet e.g. cut from a cast solid. The matter to be displayed is stuck with or without a backing sheet face upwards on the back of the clear sheet which may be suitably decorated in positions not occupied by the display matter. In a modification the display matter is mounted on a back sheet and then coated with a clear resin hardened under light pressure against polished glass or metal, or covered by a thin decorated sheet and then mounted behind a front sheet of hard thermosetting resin. A thin aluminium or other heat conducting metallic foil may be placed immediately under the display matter. Specifications 576,459, 603,490 and 629,480 are referred to.
Patent GB-557715-A (GB)
Title: Improvements in and relating to foundry ladles
IPC: B22D41/04
Filed: 1942-06-01
Abstract: 557,715. Foundry ladles. WOOD, D. H. June 1, 1942, No. 7390. [Class 82 (i)]. Each of the trunnions d of a foundry ladle is secured to a bracket r the middle part of which is spaced away from the body of the ladle and the ends s of which are attached to a reinforcing strap b on the ladle. Heat-insulating layers are interposed between the parts b and s and between the part r and a part p on the trunnion. Worm gearing i, k, operated by a hand wheel h is provided for titling the ladle.
Patent GB-500006-A (GB)
Title: Improvements relating to wireless direction-finding apparatus
IPC: G01S1/02
Filed: 1938-03-09
Abstract: 500,006. Directive wireless signalling. SOC. ANON. DES INDUSTRIES RADIOELECTRIQUES. March 9, 1938, Nos. 7427/38, 7428/38, and 7429/38. Convention dates March 10, 1937, March 10, 1937, and Nov. 19, 1937. [Class 40 (v)] A current impulse of constant strength is produced during the time a constantly-rotating frame-aerial moves through the angle between a fixed datum-line and the desired bearing-line of a distant transmitter, the current being cut off for the remainder of the rotation. The intermittent pulses, which are independent of the received signal strength, are integrated and fed to an ammeter calibrated in angles. The pulses are generated by a gas-filled relay which is energized by a rotating contact as the aerial passes through the datum line, and is cut-off by the received signal as the latter passes through its minimum (or maximum). Preferably a second derivative of the minimum signal is used to actuate the gas-filled relay. As shown in Fig. 5, the aerial 1 is rotated by a motor 2 at a speed of 20 revolutions per second. The pick-up current, after amplification at 4, is applied to a diode rectifier 5, the output from which has the form shown at C in Fig. 4. This is fed through a filter 7 to the grid of a pentode 8. The voltage across the secondary winding of the output transformer 10 is the first differential of the curve C and has the form shown at C<1>, Fig. 4. The second differential, having the form shown at C<11>, appears across the transformer 12 of the following pentode 11, and is applied to the gas-filled relay 14, which releases a pulse of current having the form shown at the bottom of Fig. 4. The anode supply to the relay tube 14 is interrupted as the frame passes through the fixed datum line by contacts 16, 17 mounted on the shaft of the frame aerial. The receiver may be used with a rotating- beam transmitter E, Fig. 6, which also radiates an omniclirectional signal as it passes through geographical North. The angle a between North and the position of an aeroplane A is then indicated by means similar to that already described. The curve S, Fig. 8, represents the voltage picked up from the rotating beam, whilst the impulses S<1> S<1>1, &c. due to the " North " signal operate the relay to produce pulses of the form shown at I, I<1>, &c. which are then applied to the bearing indicator.
Patent GB-380724-A (GB)
Title: Improvements in and relating to the manufacture of cigarette papers
IPC: G09B19/02
Filed: 1932-03-12
Abstract: 380,724. Cigarette paper. SOC. ANON. DES ANCIENS ETABLISSEMENTS BRAUNSTEIN FRERES, 83, Boulevard Exelmans, Paris. March 12, 1932, No. 7443. Convention date, March 12, 1931. [Class 96.] A compound of stearin, e.g. an alkali metal stearate, is added to paper pulp and the stearin liberated by oxalic acid, thus increasing the combustibility, opacity, and phability of the cigarette paper, in which the stearin may be 2-8 per cent. The acid is added until pH = 6 or is below 7 ; the oxalate formed being soluble and mainly eliminated in fabrication. In an example, to pulp in a Hollander is added hot aqueous sodium stearate solution and then oxalic acid gradually to avoid floculation, until pH = 6. Alkaline earth salts may be precipitated from spring or river water prior to use with the paper pulp or for washing or rinsing.
Patent GB-989127-A (GB)
Title: Process for the preparation of styrenated polyester resins
IPC: C08G63/58
Filed: 1963-02-25
Abstract: Styrenated polyester resins are obtained by copolymerizing styrene with an unsaturated polyester obtained by reaching a saturated or unsaturated polybasic carboxylic acid or anhydride thereof with a polyhydric alcohol and an epoxyalkylester of an aliphatic monocarboxylic acid in which the carboxyl group is attached to a tertiary or quaternary carbon atom.  The unsaturation in the polyester may originate either from the polybasic carboxylic acid or anhydride, or from the epoxyalkylesters, or from both.  Lists of polybasic carboxylic acids are given including Diels-Alder adducts of maleic anhydride with terpenes and cyclopentadienes, and dimerized fatty acids of drying oils.  Lists of polyhydric alcohols are given including (a) the reaction products of bisphenols and/or other polyhydroxy compounds with glycidyl esters and/or glycidyl ethers and (b) copolymers of styrene and allyl alcohol. Preferably epoxyalkyl esters of monocarboxylic acids which have been obtained by reacting formic acid or carbon monoxide and water with olefines using inorganic acid catalysts, e.g. H2SO4, H3PO4 or complex compounds of phosphoric acid, boron trifluoride and water, are used.  Preferably mixtures of olefines are used which have been obtained by cracking paraffinic hydrocarbons.  Alternately the monocarboxylic acids may be made by reacting paraffins with formic acid or carbon monoxide and water.  Other polymerizable may be used in conjunction with the styrene.  In the examples the unsaturated polyester is formed by reacting the glycidyl esters of branched monocarboxylic acids (C9-C11) with (a) maleic anhydride and 1,2-propanediol; (b) maleic and phthalic anhydrides and 1,2-propanediol; and (c) maleic anhydride and p, p1-di-phenylolpropane, and the comonomer in each case is styrene alone.  The resins may be used in paint or lacquers, as coatings and in moulded objects.
Patent GB-671505-A (GB)
Title: Apparatus to facilitate performing the chemical examination of liquids
IPC: G01N33/52
Filed: 1950-03-27
Abstract: <PICT:0671505/III/1> Apparatus for the testing of liquids by the addition of two reagents in sequence comprises two superposed containers 10, 11 the upper container acting as a filter impregnated with a reagent and the lower container catching the filtrate and being coated with a second reagent.  As applied to the detection of albumin and globulin in urine or other body liquids, filter 10 is impregnated with an organic acid or anhydride, e.g. citric acid, and the container 11 with sulphosalicylic acid.  Cloudiness of the liquid withdrawn at 13 denotes the presence of albumin.  The sulphosalicylic acid is held on the surface of receptacle 11 by a soluble bonding agent, e.g. collodion, ethylene glycol, diethylene glycol or ethylene glycol mono-ethyl ether.
Patent GB-100684-A (GB)
Title: Improvements in or relating to Electric Starting Systems for Internal Combustion Engines.
Filed: 1916-05-31
Abstract: 100,684. Bosch Magneto Co., (Assignees of Heins, O., and Wild, C. M.). June 12, 1915, [Convention date]. Controllers, actuating mechanism for. - In electric starting systems in which transmission gearing is enmeshed by axiallysliding the motor armature, the axial position of the armature determines the positions of the starting- switch. Fixed contact segments 7, 8, 9 are engaged by electrically connected brushes 15, 16, 17 sliding with the armature. To start, the electro-magnetic switch 20 is closed by depressing the button 18, sending current through the segment 7 and resistance 10 to segment 8, where it divides, the larger portion traversing the brushes 15, 17, segment 9, and field 3, and a small portion passing through the armature by the conductor 11, brushes 12, 14, and field 3. This sets up a field strong enough to move the armature axially, and the small current through the armature rotates it slowly, thereoy facilitating the enmeshment of the gears 2, 5. Armature movement causes the brush 17 to leave the segment 9, so that all the current passes in series through the armature and coil; finally, the brush 15 engages the segment 7 and cuts out the resistance 10, these two movements causing the armature to run up to speed for starting the engine. To prevent axial oscillation of the armature as soon as the engine starts and the armature current exceeds a certain value, an electro-magnetic switch may be inserted in the circuit 18, 20, its coil being shunted across the armature, and may be used to open the contacts 20 automatically. Further, means may be provided for breaking the battery circuit should the armature fail to bring the wheels 2, 5 into engagement. A second winding encircles the solenoid of the coil 19 and is used in conjunction with a rotary snap-switch so that at first it assists the coil 19. If the armature movement is insufficient for the brush 15 to engage the segment 7, so shortcircuiting the resistance 10, the full movement of the snap-switch causes an oppositely-directed current to pass through the second winding, so that the resultant electro-magnetic force is not sufficient to maintain the contacts 20 against the action of a suitable spring.
Patent GB-177510-A (GB)
Title: Improvements in and relating to air-cooled cylinders
IPC: F02F1/04
Filed: 1922-03-16
Abstract: 177,510. Sfetescu, V., and Magnet- Motoren Akt.-Ges. March 22, 1921, [Convention date]. Cylinders, construction of and cooling. - Combustible mixture enters at a, a channel c leading to the admission port g, situated in a lateral passage d and thus cooling the cylinder head.
Patent GB-392326-A (GB)
Title: Improvements in or relating to offset litho and letter-press printing machines
IPC: B41F23/00
Filed: 1932-03-16
Abstract: 392,326. Printing-machines. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, and MARSHALL, H. E., 9, Delamere Road, Levenshulme, both in Manchester. March 16, 1932, No. 7742. [Class 100 (ii).] Dust, fluff, and the like, collecting.-In an offset lithographic or letterpress printing machine, grit or foreign matter is removed from the surface of the paper prior to the printing operation by means of a flared suction nozzle c, arranged near to but not in contact with the paper, and a brush h<1> or strip of plush, which contacts lightly with the paper. The nozzle c and brush h<1> are connected by legs d to arms e on a shaft f, which is preferably oscillated by an adjustable cam so as to move the nozzle away from the impression cylinder a when a sheet is not passing. A second brush h<2> may be carried by the shaft f to act on the sheet prior to the nozzle c, and a tray or scoop q is preferably fitted below the nozzle to receive pieces of paper &c. The nozzle c is curved to the shape of the cylinder at its front end and extends right across the cylinder, and its rear fish-shaped part is connected by an elbow pipe C<3> and a flexible connection to an exhaust pump fitted with an air filter, the pump being preferably driven from the printing machine. As applied to a flat-bed letterpress machine the nozzle is supported from upright brackets d<1>, Fig. 6, to which the nozzle is rigidly secured ; or the nozzle may be carried by an oscillating shaft mounted in these brackets.
Patent GB-679184-A (GB)
Title: Improvements in or relating to the production of cellulose carboxy alkyl ethers and salts thereof
IPC: C08B11/12
Filed: 1949-03-22
Abstract: Cellulose esters which have been dissolved in the reaction medium in which they were prepared are reacted with one or more halogeno-fatty acids or their salts in the presence of an alkali hydroxide to yield cellulose carboxy allyl ethers which will dissolve to form fibre-free solutions.  Reacting the so-formed ethers with inorganic salts or bases yields the corresponding salts.  The products can be cast into fibre-free films for use in the photographic industry.  In an example (all parts by weight) 1 part of cellulose acetate prepared in the reaction mixture in dissolved state and containing 57 per cent combined acetic acid is dissolved in 3 parts monochloracetic acid and 2.5 parts water, and 7.5 parts of 75 per cent sodium hydroxide are added with stirring, the temperature being maintained at 45 DEG  C. The reaction mixture is allowed to stand for several hours without stirring and the sodium cellulose glycollate precipitated by addition of 10 parts of methyl alcohol with stirring.  The filtered precipitate is washed with methyl alcohol at 25 DEG  C. until free from caustic soda and sodium chloride, and dried.
Patent GB-682141-A (GB)
Title: Improvements in combined steam turbine and gas turbine plants
IPC: F01K23/10
Filed: 1951-04-04
Abstract: 682,141. Gas turbine plant. MASCHINENFABRIK OERLIKON. April 4, 1951 [April.24, 1950], No. 7856/51. Class 110(iii) In a combined multi-stage steam turbine and multi-staged gas turbine plant, at least a part of the gases from the high pressure stage of the gas turbine are used to effect a superheating of the, steam between the stages of the steam turbine plant and at least a part of the exhaust gases of the gas turbine plant gives up heat to the combustion air for the boiler of the steam turbine plant. In the plant shown, steam from a boiler plant I is used in a multi-stage steam turbine plant 11 comprising high, intermediate and low pressure stages 6, 8, 8<SP>1</SP>, interstage superheaters 7, 7<SP>1</SP>, a condenser 9 and an electric generator 10. The compressed air from a compressor 11 of a gas turbine plant III is heated in a heat exchanger 15, further heated in a heat exchanger 4<SP>1</SP> located in the path of the combustion gases leaving the boiler, and then used in a high pressure air turbine 12". The exhaust gases from the turbine 12<SP>11</SP> is used to heat the interstage superheaters 7, 7<SP>1</SP> and the heat exchanger 15 before passing to a combustion chamber 13<SP>1</SP> the gases from which are used to drive a low pressure gas turbine 12<SP>1</SP>. The exhaust gases from the turbine 12<SP>1</SP> are used in part as combustion air in the grate 1 of the boiler and in part to heat the feed water heater 16. In a modification, the air from the compressor 11 is heated in a combustion chamber, which supplies gas to a high pressure turbine the exhaust of which is used in part in an interstage superheater and in part in a feed water heater. After passing through the superheater and feed water heater, the gases are re-united and then pass to another combustion chamber which supplies a low pressure turbine. It is stated that part of exhaust gases of the high or low pressure turbines may be used to heat the compressed air leaving the compressor. When multiple interstage superheating is employed the temperature of the superheated steam in the various superheaters may be different from one another. The compressor may be arranged in two stages driven by the high pressure and low pressure turbines respectively or the compressor may be driven by the low pressure turbine at variable speed independently of the high pressure turbine. The combustion chamber before the low pressure turbine may be dispensed with.
Patent GB-250738-A (GB)
Title: Improvements in advertising and like apparatus
IPC: G09F19/18
Filed: 1925-03-24
Abstract: 250,738. Page, R. J. March 24, 1925. Drawings to Specification. Kinematograph apparatus. - A continuouslymoving internally-illuminated endless band, bearing representations co-operating with a line screen to produce kinematographic effects, is provided behind a display face in a casing. The casing also contains an optical-projection apparatus in which a series of transparencies mounted on an intermittently moved endless band are projected in turn on a translucent screen, and a third display face at which changing matter is seen.
Patent GB-1259874-A (GB)
Title: Centrifugal separator
IPC: B04B5/08
Filed: 1969-02-13
Abstract: 1,259,874. Centrifugal separators. MITSUBISHI JUKOGYO K.K. 13 Feb., 1969 [15 Feb., 1968; 18 June, 1968], No. 7927/69. Heading B2P. [Also in Division F1] A centrifugal separator for separating constituents of liquid or gaseous mixtures of little difference in specific gravity, e.g. isotopes U 235 and U 238 of natural uranium, comprises a rotor which is rotatably supported in a casing and which has a plurality of independent separating chambers each in the form of an elongate hollow in the rotor at a position remote from the axis of rotation and substantially parallel to the axis of rotation, each chamber having an opening for supplying the mixture to be treated, an opening for discharging a separated light fraction and an opening for discharging a separated heavy fraction, the latter opening being at a greater distance from the axis of rotation than the other two openings, and the rotor having passages which communicate the openings with the outside of the separator. In Figure 1, the mixture to be treated is fed through an inlet port 8 in the casing 1 and flows through a passage 12" in the casing, a centre hole 12' in the driving shaft 4 and passages 12, Figure 2(a), in the rotor 2 into separating chambers 9 in which the mixture is separated. The light fraction is extracted through passages 13 in the rotor, a centre hole 13' in the shaft 4, a passage 13" in the casing and an outlet port 10 therein. The heavy fraction is removed through outlet ports 15, passages 14, an annular passage 14', a passage 14" and an outlet port 11. The rotor section may be elliptical, as shown, circular or approximately square, Figures 3 and 4 (not shown). L-section seals, as shown, or labyrinth seals are provided at 5, 5', 5" and 6 and labyrinth seals at 16. Exits 17 are provided for removing fluid leaking past the seals to the outside. An exhaust port 18 connected to a vacuum pump is formed in the casing 1 for drawing off air in the space between the rotor and the casing to reduce frictional heat developed during rotation of the rotor. In Figure 5, the centrifugal separator rotor 101" is integral with a driving turbine rotor 101' both rotors being integral with a common shaft 101"' and supported in a common casing 102. The turbine rotor comprises a turbine impeller wheel 105 which faces a group of nozzles 106 connected with a chamber 107 provided with a port 108 for the supply of steam or other driving fluid. The space 109 between the rotors and the casing serves as an exhaust chamber for the turbine and is under vacuum being connected via a port 110 to a condenser. The separator rotor 101" is of elliptical cross-section, Figure 8 (not shown). The mixture to be separated is supplied through a port 112 and the light and heavy fractions are discharged through ports 117 and 122 respectively. Labyrinth seals supplied with sealing steam from ports 125, 126 are provided at 123, 124. Further labyrinth seals and exits for fluid leaking therefrom are provided at 127 and 128 respectively.
Patent GB-793480-A (GB)
Title: Improvements in or relating to holders for photographic transparencies
IPC: G03B21/64
Filed: 1956-03-14
Abstract: 793,480. Hinges. SILBER, J. J. May 30. 1956 [March 14, 1956], No. 7964/56. Class 65(2) [Also in Group XX] The upper member 15 of a transparency mount (see Group XX) is releasably hinged to the lower member 22 by means of suitably shaped lugs 19 on member 15 engaging beneath the projecting ends 20 of a rib 21 formed along one edge of member 22.