baber/WOPTO huggingface dataset:
Patent GB-252553-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K57/00
Filed: 1925-06-18
Abstract: 252,553. Wade, H., (Sandell, H. K.). June 18, 1925. Rotary machines. - A motor has a rotatable bar armature provided with coils for changing its polarity as it passes the fixed poles; the current produced by the drop in magnetization of the armature is utilized to increase the torque. In the form shown in Fig. 1, permanent magnets 12 or the cores of electro-magnets are arranged between the pole pieces 10, 11 joined by members 13, 14 carrying the shaft 17. The armature cores, secured to the shaft, consist of laminated bars 19, 20 hardened at the ends and carrying coils 21 - - 24 connected between two brushes 30, 31, which rotate with armature. The brushes bear upon contact segments 34-37 on an insulating block 38 supported by the member 14; one opposite pair of contacts 36, 37 is connected to the source 42 and the other pair 34, 35 is connected to the relatively low voltage source 45. With the parts in the positions shown in Fig. 1, current is supplied from the source 42 through the contacts 36, 37 and brushes to the armature coils, so that a clockwise rotation of the armature is obtained. The rotation of the armature causes the brushes 30, 31 to leave the contacts 36, 37 and pass on to the contacts 34, 35; the coils are then energized from the lower voltage battery 45 the direction of magnetization being the same as before. When the armatures pass under the pole pieces the brushes again move on to the contacts 36, 37 and thus reverse the current through the windings. In a modification the armature consists of a single laminated bar with a coil at each end. The current is reversed as the armature passes each fixed pole; the current flows for a time and the armature coils are then short-circuited by connected segments under the brushes. The collapse of the field tends to prolong the current and the magnetic action.
Patent GB-934276-A (GB)
Title: Fuel cells
Inventor: WILLIAMS KEITH ROLLS
IPC: H01M8/08
Filed: 1961-05-02
Abstract: 934,276. Fuel cells. SHELL RESEARCH Ltd. March 23, 1962 [May 2, 1961], No. 15844/61. Class 53. The electrodes of a fuel cell are spaced not greater than 0.01 inch apart, the space formed accommodating liquid electrolyte. This spacing is stated to be less than the boundary layer thickness and improves ionic diffusion. The separation is obtained by interposing a regenerated cellulose or similar sheet. The electrodes 1, 2 are preferably of porous plastics coated with silver and a catalyst (platinum black for the fuel electrode and palladium on carbon for the oxygen electrode). Polyethylene spacers separate stainless steel plates 5, 8 and the electrolyte spaces 4, 7 are packed with a polyethylene mesh material. Fuel in electrolyte is supplied at 13 and oxygen at 15.
Patent GB-561347-A (GB)
Title: Improvements in or relating to apparatus for viewing television images
IPC: H04N5/74
Filed: 1942-11-11
Abstract: 561,347. Viewing screens. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America). Nov. 11, 1942, No. 15906. [Class 97 (i)] [Also in Group XL] Opaque members are attached to the sides of the hinged lid 3 of a television cabinet so as to intercept a substantial part of the extraneous light which would fall on the viewing screen 9 on the inside of the lid when the lid is opened to the operative position. The opaque members may be pleated as at 11, Fig. 1, or may be flat as at 13, Figs. 3 and 4, in which case they slide into the cabinet when the lid is closed. The opaque members may be detachably connected to the lid to enable their use to be dispensed with. The detachable connection may comprise hooks 23 on the lid in engagement with socket 25 on the opaque members. The hooks 23 are on rods 19 normally held in engaging position by springs but adapted to be pushed by knobs 17 to disengage the hooks.
Patent GB-682989-A (GB)
Title: Improvements relating to seed sowing machines for agricultural appliances
Inventor: DUNN OSWALD HARRY
IPC: A01C7/18
Filed: 1950-06-27
Abstract: 682,989. Seed-sowers. M. & G. PRODUCTS, Ltd. June 18, 1951 [June 27, 1950], No. 15965/50. Class 6(i) A seed-sowing machine comprises a hopper a with a rotatable apertured disc b mounted beneath its base, a spring-loaded ejector c being mounted above the disc, outside the hopper, to thrust the seeds downwardly through the apertures into a sowing shoot d<SP>1</SP>. The disc is driven from the land - wheels by bevel gearing b<SP>2</SP>, b<SP>3</SP> and its surface is swept by a stationary brush e secured to the hopper wall. The shoot d opens into a hollow coulter d which is preceded and followed by furrowing and consolidating tools. The machine is attached by parallel links to a tractor. Interchangeable discs with various aperture-spacings may be provided.
Patent GB-370249-A (GB)
Title: Improvements in posts or towers for carrying electric conductors and the like
IPC: E04H12/10
Filed: 1931-06-01
Abstract: 370,249. Lattice masts. ELLIS, R. E., 70, Chancery Lane, London.-(American Bridge Co. ; Frick Building, Pittsburg, U.S.A.) June 1, 1931, No. 16016. [Class 20 (i).] A tower or post for carrying overhead electric lines is formed of superposed openwork parts of rectangular cross section, the lower part being disposed with the lines of the section at angles to the direction of the overhead line, while the upper part is disposed with two of the sides of its section parallel to the line direction. The lower part A, Fig. 2, and upper part B have a common meeting plane F, the extensions of the upper portion terminating at the plane E in the lower portion. In a modification, Fig. 3, the upper portion B of the post is formed wedgeshaped of two outwardly diverging skeleton arms 10, 12 joined at their upper ends by a cross arm 14. The parallel planes of intersections G, H of the two parts are disposed with their sides at 45‹ to each other, as shown in Fig. 4.
Patent GB-1372871-A (GB)
Title: Heating air for a blast furnace
Inventor: LAWS WILLIAM ROBERT
IPC: C21B9/10
Filed: 1972-05-18
Abstract: 1372871 Blast furnace operation BRITISH IRON & STEEL RESEARCH ASSOCIATION 18 May 1972] [20 May 1971] 16026/71 Heading C7D [Also in Division F4] Blast air at injection pressure is heated by continuous passage through ceramic tubes of heat exchanger to which hot gas is supplied at a pressure substantially equal to that of the air. Preferably the air and gas are passed through a bank of heat exchangers arranged in series, while they may be at a pressure exceeding 20 p.s.i. The hot gas may be obtained by combustion of fuel in compressed air. In a particular embodiment, compressed air is supplied to inlet 30 of heat exchanger bank 22 the discharge from outlet 31 being fed to the blast furnace. An axial flow compressor 14 supplies air to combustion chamber 17 into which fuel is injected through line 16. The bank may be provided with ducts 32, 33 and valves 40, 41, 42, 43, 44, 46, 47, 48, 49, 50 whereby individual exchangers may be by-passed, while in a further embodiment each exchanger is of trapezoidal plan, the exchangers being arranged alternately so that any one can be removed transversely for replacement by carriages 73, 74 and extractor ram 75.
Patent GB-128095-A (GB)
Title: An Improved Oil-burning or like Cooking or Boiling Stove.
Inventor: LENORMAND HENRI PLACIDE CAMILL
IPC: F24C5/04
Filed: 1918-10-03
Abstract: 128,095. Lenormand, H. P. C. Oct. 3, 1918. Portable oil stoves. - An oil-burning boiling &c. stove comprises an oil reservoir A with a removable cover on which are upstanding wick-tubes or the like in rings or ranges, and also utensil supports G, preferably adjustable in lugs Y. As shown, the stove has three concentric rings or ranges C, D, E of wick tubes, the tubes of the inner ring having a greater diameter. They may be cast in one with the cover B, or may be soldered or otherwise attached to it, and, as shown, are formed in upstanding bosses or ridges. The cover B has a flange B', forming a water-container which prevents the cover from becoming overheated. The flames of any of the rings C, D, E may be extinguished by means of flat rings of corresponding diameter, each with a suitable handle, and the flames of all the rings may be extinguished by means of a plate having on one side rings or ranges of thimbles which register with the rings of tubes C, D, E. Fig. 8 shows a device for lighting the stove. It consists of a plate K having pivoted upon it two arms L, M connected by a spring so that normally felt or like oil-absorbing material on the under sides of the arms is covered by the plate K. When the arms L<1>, M<1> are pressed together, the oil pads on the arms L, M are exposed, and may be ignited and held over the rings C, D, E. The device may have only one arm. The lighter and extinguishers may be hung upon hooks on the body of the reservoir A, which has also handles T, U, and a filling- plug and vent F.
Patent GB-499567-A (GB)
Title: Improvements in and relating to means for slicing automobile tyres and the like
IPC: B29B17/02
Filed: 1938-05-30
Abstract: 499,567. Splitting motor tyres. STIKKEL, A. J., and WIJNGAARDEN, D. J. VAN. May 30,1938, No. 16055. [Class 31 (i)] A motor tyre 3 is fed in curved form between convex and concave rolls 1, 2 and split by a band knife 4 passing round discs 5, 6 or by a cylindrical knife fixed around the disc 5.
Patent GB-530048-A (GB)
Title: Improvements in or relating to the manufacture of reactive magnesium oxide
IPC: C01F5/22
Filed: 1939-05-31
Abstract: 530.048. Magnesium oxide. ELKINGTON, F., and CHESNEY. H. H. May 31, 1939, No. 16068. [Class 1 (iii)] A process for the production of magnesium oxide in the form capable of re-acting to give a cement comprises treating an aqueous slurry of calcined and slaked dolomite with a dilute aqueous brine, removing the magnesium hydroxide and introducing it while wet into an internally fired rotary kiln and calcining it for 1-2 hours at 850-1000‹C. In a modification, the slurry of magnesium hydroxide may be dried, e.g. on a tray drier, and the lumps of dry hydroxide added to the kiln as above. In Fig. 1, the kiln 11 lined with refractory bricks 12 and supported on roller bearings 13, 14 has cutting blades 15 attached to its walls inclining at an angle of 16 degrees to the vertical. The broken up material then passes to lifting trays 16 adapted to lift and then allow the material to drop through the hot gases. The lower end of the kiln is flared at 17 so that the material traverses the hottest part of the kiln to the radially disposed exit holes 18 provided with flap valves 19. In Fig. 2 the lower end of the rotary kiln is connected to a stationary combustion furnace 24. A firing wall 26 having an opening 27 is placed opposite an oil, gas or pulverized coal burner 25. The furnace is maintained at a temperature of about 1400‹C. whilst the cool end is at about 200‹C. Specifications 482,339 and 483,096 are referred to.
Patent GB-403996-A (GB)
Title: Improvements in, and relating to, portable electric drilling machines
IPC: B23B45/00
Filed: 1932-06-07
Abstract: 403,996. Portable drilling - machines. HARDYPICK, Ltd., Heeley, Sheffield, and HURD, F. W., 70, Cunningham Park, Harrow, Middlesex. June 7, 1932, No. 16082. [Class 83 (iii).] A portable drilling-machine with self-contained electric motor has a hollow tool spindle passing axially through the motor adapted to drive a drill at either end and a casing for receiving a cable and switch arranged tangentially with respect to the motor. The hollow spindle e, having a central driving member p, is mounted by means of ball bearings in the cylindrical casing a; hollow handles k, m are provided integral with the periphery of the casing enabling the machine to be turned over and the opposite end of the spindle used when a reverse drive is required, the handle k is extended tangentially of the motor to form a casing for the cable to the motor and the switch.
Patent GB-786794-A (GB)
Title: Combined pneumatic pressure gauge and inflator connector
Inventor: WALTERS DEREK JOHN
IPC: F16K15/20
Filed: 1955-06-03
Abstract: 786,794. Junction pieces. WALTERS & DOBSON, Ltd. June 4, 1956 [June 3, 1955], No. 16082/55. Class 99(1). In a combined pneumatic pressure gauge and inflator connector a hollow body 10 is provided with a valve chamber 13 having an outlet passage 24 opened and closed by a spring- pressed valve 26 normally closed on a seating 25 and carried by the spindle 29 of a push-button 30 manually depressible for lifting the valve from the seating, the axis of the chamber being at right angles to the axes of a nipple 11 and a pressure gauge 12. There is a pump adaptor 14 including a non-return valve 18 coupled to the inlet end of the chamber, and an outlet port 33 normally open to atmosphere and leading from the passage 24 to the gauge. The arrangement is such that full depression of the button 30 seals the passage 24 and port 33 from atmosphere while opening the chamber to the gauge via the port, and partial depression of the button causes the chamber to be opened to atmosphere via the passage. The valve 18 may be a ball valve or, as shown, a floating cylindrical member having a rubber or other non-metallic insert 19 and formed with flats 23 to provide air inlet passages between the valve and the bore 22 of the adaptor, while the valve 26 is provided with a stem 28 detachably connected to the spindle 29 and a stem 31 carrying a spring 27 and for holding the valve 18 against the seat 20 when the button 30 is depressed to open the valve 26. A length 32 of the spindle 29 is of reduced cross-section to place the chamber 13 in communication with the passage 24 and port 33, and the button has a non-metallic washer 34 to contact an external seating 35 on the body 10 to seal the passage and the port when the button is fully depressed. The nipple 11 is screw-threaded to receive a lancetype connector 38 when an inflatable body is provided with a self-closing inlet.
Patent GB-1521846-A (GB)
Title: Control of welding
IPC: B23K9/095
Filed: 1977-03-24
Abstract: 1521846 Welding control CENTRAL ELECTRICITY GENERATING BOARD 24 March 1977 [21 April 1976] 16159/76 Heading G1A Apparatus for weld penetration control comprises, arranged between sensor 14 and the rear surface 15 of the weld, filter 16 with a peak transmissivity at #m between 0À6#w and 0À1#w and a passband within the range #m + 0À1#w to zero, where #w is the wavelength of maximum emittance at the melting point of the metal to be welded, as predicted by Wien's law, and amplifier 18 providing a control signal.
Patent GB-994721-A (GB)
Title: Electric control structure
IPC: H01H9/22
Filed: 1963-04-25
Abstract: 994,721. Switch covers; actuation of switches. WESTINGHOUSE ELECTRIC CORPORATION. April 25, 1963 [May 9, 1962], No. 16264/63. Heading H2B. An enclosure 7 has an operable cover 11 and contains a circuit interrupter 21 with an actuating member 23, while an operating member 61 is movable to actuate the actuating member 23 via rack-and-pinion operating means 63, 67. A spring-biased handle 29 moves rods 41 to lock the cover 11 closed, the handle 29 being latched in the cover-closed position by a part 111 of a latch 93 engaging a notch 113 in the plate 35 which is movable with the handle 29. In this position the latch 93 also holds a latch 77 against its biasing spring 91 to permit free movement of the rack plate 67 and thus unobstructed operation of the circuit interrupter 21 by operating member 61, Fig. 6. Rotation of latch 93 via a bolt 97 unlatches the handle 29 and allows opening of the cover 11, if interrupter 21 is " off," while part 89 of the latch 77 then engages pin 72 and prevents downward movement of rack plate 67 (Fig. 7, not shown), until latch 77 is rotated via a bolt 79. If interrupter 21 is " on " when latch 93 is released, the cover 11 will not open unless latch 77 is also released as latch parts 87, 95, remain engaged.
Patent GB-204093-A (GB)
Title: Improvements in and relating to the manufacture of paints
IPC: C09D107/02
Filed: 1922-06-12
Abstract: 204,093. Trevor, S. R., and Moosman, J. E. June 12, 1922. Water paints; coating-compositions. - A composition which may serve as a paint vehicle or paint comprises rubber, water, and an oil or solvent, such as linseed oil, or turpentine, kerosene, benzine &c. Pigments may be added. In an example, 25 per cent by weight of ground vulcanized rubber is heated to between 140-170‹ C., with 75 per cent of solvent until solution occurs, and the temperature is raised to 200‹ C. and then to 206-310‹ C. to render combination permanent. The liquid is strained while warm and agitated with an amount of water equal to not more than 75 per cent of the combined rubber and oil. Preferred proportions are rubber 1-50 per cent by weight of the solvent, and water, not more than 75 per cent by weight of rubber and oil. Paints are also made by adding pigments to the rubber and oil combination, without addition of water. Reference has been directed by the Comptroller to Specifications 18499/06, [Class 70, India-rubber &c.], 151,687, and 175,764.
Patent GB-1433151-A (GB)
Title: Benzo-ij-quinolizines
IPC: C07D215/06
Filed: 1973-04-05
Abstract: 1433151 Benzo[ij]quinolizines ALLEN & HANBURYS Ltd 19 March 1974 [5 April 1973] 16279/73 Heading C2C [Also in Division A5] Novel benzo[ij]quinolizines of the formula wherein R 1  is H, alkyl or OR 3 , where R 3  is H, acyl or alkenyl or an alkyl group optionally substituted by amino, dialkylamino, alkylarylamino, aryl, aryloxy, acyloxy, alkoxy, hydroxy or tetrahydropyranyloxy, and up to 3 groups R 1 , which may be the same or different are present; and R<SP>2</SP> is H or alkyl, and pharmaceutically acceptable salts thereof are prepared by reacting the appropriate 6,7-dihydro-1-oxo- 1H,5H - benzo[ij]quinolizine - 2 - carboxylic acids or reactive derivatives thereof with 5- amino - 1H - tetrazole. Compounds of the formula above in which R 1  is OH may be obtained by the hydrogenolysis of the corresponding compounds in which R 1  is benzyloxy, those in which R 1  is trifluoroacetoxy by treating the corresponding compound in which R 1  is 2- tetrahydropyranyloxy with trifluoroacetic acid, and those in which R 1  is hydroxyalkoxy by hydrolysing the corresponding compounds in which R 1  is trifluoroacetoxy. 9 - Ethoxy (or 9 - (2 - hydroxyethoxy)-, or 9 - (2 - ethoxyethoxy)-, or 9 - (2 - tetrahydropyran - 2<SP>1</SP> - yloxyethoxy)-, or 9 - isopropoxy -)- 6,7 - dihydro - 1 - oxo - 1H,5H - benzo[ij]- quinolizine-2-carboxylic acid is obtained by reacting diethyl sulphate (or 2-bromoethanol or 2-ethoxyethyl bromide or 2-tetrahydropyran-21- yloxyethyl bromide or isopropyl bromide) with 9 - hydroxy - 6,7 - dihydro - 1 - oxo - 1H,5H - benzo[ij]quinolizine 2 - carboxylic acid resulting from the demethylation of the corresponding 9-methoxy compound. 9 - Allyloxy - 6,7 - dihydro - 1 - oxo - 1H,5H- benzo[ij]quinolizine - 2 - carboxylic acid is obtained by hydrolysing the corresponding allyl ester, which is prepared by reacting allyl bromide with 9-hydroxy-6,7 -dihydro- 1-oxo-1H,- 5H-benzo[ij]quinolizine-2-carboxylic acid. 9- Benzyloxy - 6,7 - dihydro - 1 - oxo - 1H,5H- benzo[ij]quinolizine-2-carboxylic acid and its benzyl ester are obtained in a similar manner. 6,7 - Dihydro - 9 - (2 - dimethylaminoethoxy)- 1 - oxo - 1H,5H - benzo[ij]quinolizine - 2 - carboxylic acid hydrochloride and 9-[2-(N-benzyl-N- methylamino)ethoxy]- 6,7 - dihydro - 1 - oxo- 1H,5H - benzo[ij]quinolizine - 2 - carboxylic acid hydrochloride, monohydrate are obtained by reacting 6,7-dihydro-9-hydroxy-1-oxo-1H,5H- benzo[ij]quinolizine - 2 - carboxylic acid with 2-dimethylaminoethyl chloride hydrochloride and N-benzyl-N-methylaminoethyl bromide respectively and hydrolysing the esters thus obtained. 6,7 - Dihydro - 9 - isopropyl - 1 - oxo - 1H,5H- benzo[ij]quinolizine - 2 - carboxylic acid is prepared by hydrolysing the corresponding ethyl ester, obtained by cyclizing diethyl [(1,2,3,4- tetrahydro - 6 - isopropylquinol - 1 - yl)-methylene]malonate resulting from the reacting between diethyl ethoxymethylenemalonate and 1,2,3,4 - tetrahydro - 6 - isopropylquinoline, which is made by hydrogenating 6-isopropylquinoline.
Patent GB-847117-A (GB)
Title: Improvements relating to battery-charging systems
Inventor: HOBBS EDWIN DANIEL
IPC: H02J7/26
Filed: 1957-05-23
Abstract: 847,117. A.C. generators changing batteries; automatic current and voltage control systems. STONE & CO. (DEPTFORD) Ltd., J. March 17, 1958 [May 23, 1957], No. 16405/57. Class 38(4). In a voltage-control system for an A.C. generator 1 supplying a battery 3 and a load 4 through a rectifier 2, to maintain the charging current constant with variation of load the generator field winding 13 is fed through a rectifier 14 and a saturable reactor 6, 12, the control winding 6 of which is responsive to the load voltage by being connected in parallel through series resistors 7, 8, and also to the generator current, through a current transformer 10, 11 and rectifier 9 whose output is connected across a circuit comprising a series load resistor 5, the winding 6 and resistor 7. The control winding 6 increases the impedance of the reactor by being in opposition to a fixed bias winding (not shown). At full load and with a discharged battery the rectifier 9 output will just cause the regulator to operate and limit the generator output. At no load the volt drop across the resistor 5 will be zero, but the rectifier 9 will still have an output due to the battery current which will cause the reactor to reduce the generator voltage to maintain the battery charging rate constant. The generator 1 may be designed to be inherently current limiting within its maximum rating. Specifications 804,711 and 804,713 are referred to.
Patent GB-630040-A (GB)
Title: Improvements in beverage storage apparatus
IPC: A47J39/00
Filed: 1947-06-23
Abstract: 630,040. Food-warming stoves. ANDERSON, J. M. June 23, 1947, No. 16478. [Class 126] [Also in Group XVII] Apparatus for storing a hot beverage at a predetermined temperature comprises a beverage container having a draw-off tap and suspended in an aperture of the cover of an insulated casing from the sides of which it is spaced, an apertured division plate being provided below the container to divide the casing into an upper air chamber and a lower heating chamber containing a thermostatically controlled heater. Beverage containers 20 are suspended by the cover 18 of the insulated casing, thermostatically controlled heating means 15 being provided within the casing beneath a horizontal partition 12 having openings 22 some of which are damper controlled. The beverage containers 20 are provided with draw-off taps 30, the delivery pipes 31 of which pass through openings or slots in the casing. Dampered openings 9 are provided in the base 8 of the casing. Specification 624,492 is referred to.
Patent GB-187560-A (GB)
Title: Improvements in or relating to hoisting devices
IPC: B66C1/58
Filed: 1922-06-14
Abstract: 187,560. Carlson, T. June 14, 1922. Lifting-dogs.-The gripping-members consist of a pair of levers 5 pivoted at points 6 intermediate of their length to the ends of a pair of links 7 which are pivoted one to the other at 11. The inner arms of the levers 5 are connected at their common pivot 15 to the lifting rope 18, 19, and at the outer ends to the releasing rope 21, 22. The links 7 each consist of two parallel bars carrying a guide-pulley 8 for the releasing rope. The links 7 also carry a guide pulley 9 for the lifting rope.