baber/WOPTO huggingface dataset:
Patent GB-622513-A (GB)
Title: Improvements in or relating to combustion apparatus
IPC: F23R3/28
Filed: 1947-03-12
Abstract: 622,513. Generating combustion products under pressure. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 12, 1947, No. 6914. Convention date, June 9, 1944. [Class 51 (i)] In a gas turbine plant for jet-propulsion an Specification 592,505, is defined by two conical annular combustion chamber, as described in perforated walls 26, 27 within an air chamber which receives air from the compressor. Each fuel nozzle is inserted through a hole 33 in the outer casing 10 and is screwed into the conical wall 34 of the diffuser passage 35. Each nozzle head 45 projects through a hole in the wall 27. Large air holes 51 are located opposite the nozzle heads and the streams of air pass through them and impinge on the fuel sprays. The holes 51 may be formed with scoops for picking up the air and directing it towards the nozzles. Small air holes 54 prevent the accumulation of fuel in the closed up-stream end of the combustion chamber. The nozzle casing contains a filter 44. Specification 590,799, [Group XXVI], also is referred to.
Patent GB-773534-A (GB)
Title: Improvements in or relating to testing air or other gases to determine the methane content thereof
IPC: G01N31/22
Filed: 1954-03-10
Abstract: <PICT:0773534/III/1> Apparatus for indicating the methane content of air or other gases comprises a tube 1 containing an ozone-forming reagent 2 and a formaldehyde - indicating reagent 3 arranged in successive layers.  Methane in the gas tested is oxidized by the ozone to formaldehyde which is indicated by a colour change in the reagent 3.  The ozone-forming reagent may be silica gel containing concentrated sulphuric acid and potassium permanganate.  A suitable formaldehyde-indicating reagent is silica gel impregnated with a concentrated sulphuric acid solution of 1,8-dihydroxy-napthalene disulphonic acid; morphine sulphate is also mentioned as a formaldehyde-indicating reagent.  A hollow attachment 6 contains silica gel saturated with water and is provided with a punch 8 which penetrates a cap 4 when the tube is to be used.  A predetermined quantity of air or gas is drawn in through the openings 7 into attachment 6 and tube 1 by means of a pump attached at 11.
Patent GB-423975-A (GB)
Title: Improvements in handles for stewpan and like lids
IPC: A47J45/08
Filed: 1934-03-05
Abstract: 423,975. Handles for stewpan &c. lids. JOSEPH, Ltd., N. C., and JOSEPH, B. C., Aluminium Works, Birmingham Road, Stratford-on-Avon. March 5, 1934, No. 7027. [Class 66] A handle, conveniently of moulded heat-insulating material, consists of a grip portion 4 projecting from the end of a stem 1 which is attached to the lid 2 by means of a bolt, riveted pin &c.
Patent GB-1104571-A (GB)
Title: Devices for checking levels
Inventor: SQUIRE ALAN MAURICE
IPC: G01C5/00
Filed: 1966-02-18
Abstract: 1,104,571. Measuring levels electrically. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Feb. 16, 1967 [Feb. 18, 1966], No.7313/66. Headings G1F and G1N. The relative levels of two points in, e.g. a building, a large distance apart, e.g. 20 ft., is measured using a device sensitive to inclination attached to the midpoint of a flat metal ribbon or wire suspended from the ends of a strut, e.g. a metal tube or skeleton frame. In the former arrangement the device is arranged inside the tube, the wire or ribbon being attached to rods arranged diametrically of the tube at either end. The rods may be rotatable to adjust the tension in the wire or ribbon and to adjust the position of the device. The tube may be supported at the two points by pads welded to its underside or by discs on the ends of the diametrical rods. The whole apparatus may be dismantled for transport, the ribbon or wire and device being detachable from the strut which is itself collapsable. The device sensitive to inclination may be as described in Patent No. 993, 715 comprising a sealed glass tube filled with electrolyte containing a bubble of air and having a central and two end electrodes, the difference between the resistances between the central and end electrodes varying with inclination and being indicated by the output from a bridge. This output may also be used to operate an alarm when a maximum inclination is detected.
Patent GB-398743-A (GB)
Title: Improvements in or relating to line-marking devices for sports and other purposes
IPC: A63C19/08
Filed: 1933-03-10
Abstract: 398,743. Stirrers. BILEK, J., 235, Nestemice, Usti-n-Labem, Czecho-Slovakia. March 10, 1933, No. 7337. [Class 86.] A portable receptacle 10 for supplying paint, varnish, liquid lime, &c. to a line-marking device has an outlet pipe 11, the outlet being controlled by a cone valve 14 on a spindle 15 actuated by a hand wheel 16. The paint &c. in the receptacle is maintained in a uniformly liquid condition by periodical movement of a piston 18 secured to the spindle 15 and having teeth 19 bent alternately above and below the plane of the piston.
Patent GB-1183231-A (GB)
Title: Phthalocyanine Pigments
Inventor: STEPP JAMES D
IPC: C09B47/04
Filed: 1967-02-16
Abstract: 1,183,231. Coated metal panel. CHEMETRON CORP. 16 Feb., 1967 [18 Feb., 1966], No. 7435/67. Heading B2K. [Also in Divisions C3 and C4] A tin coated steel panel is coated with a paint formulation prepared by adding nitrocellulose lacquer and lacquer thinner to the colour base obtained by grinding a pigment, anatase titanium dioxide and blown castor oil, the pigment being a non-flocculating, non- crystallising phthalocyanine pigment composition comprising at least one quinolinic group fused into a metal complexed tetraazoporphine structure in admixture with or embodied in a substituted metal phthalocyanine, the substituted phthalic groups present in said substituted phthalocyanine being halophthalic, monosulphophthalic, monohalosulphophthalic, aliphatic or aromatic substituted or unsubstituted sulphonamidophthalic or a combination thereof.
Patent GB-458173-A (GB)
Title: Cycle and motor-cycle stand and propping device
IPC: B62H1/06
Filed: 1935-03-11
Abstract: 458,173. Cycle-supports. DOHNEL, W., 30, Haupstrasse, and WAGNER, M., 15, Hersterstrasse, both in Pratteln, Switzerland. March 11, 1935, No. 7480. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 18, 1936]. [Class 136 (i)] A stand or support for motor or other cycles comprises a prop pivoted to the cycle frame in such a way that it can be swung out laterally to the operative position and held there by a stop. A clip 7 secured to the frame near the saddle is provided with a disc 5, Fig. 6, to which is rotatably attached, by a pin 9, a disc 7 on the upper end of a support 8, which is provided with telescopic extensions 15. The support 8 is held at the required angle of inclination by a ball 12 acted upon by a spring 11 in a casing 10 and adapted to engage recesses in the disc 5. The free end of the support 8 is provided with a notch or fork, adapted, when several cycles are stacked together, to engage the frame tube of an adjacent cycle.
Patent GB-382860-A (GB)
Title: Improvements in or relating to film-handling or -propelling apparatus
IPC: G03B31/02
Filed: 1932-03-14
Abstract: 382,860. Film-driving mechanism. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Reynolds, E. W. ; 4028, Sommers Avenue, Drexel Hill, Pennsylvania, U.S.A.) March 14, 1932, No. 7555. Convention date, April 17, 1931. [Class 40 (ii).] A film-driving mechanism particularly applicable to sound-recording or reproducing apparatus, comprises a pair of sprocket wheels and a pair of film-driven inertia rollers, one of the sprocket wheels and one of the inertia rollers being positioned on either side of the exposure zone of the film. The sprockets 1, 3, 4, Fig. 1, advance a sound film 5 over rollers 55, 57 and a sound-gate aperture plate 7 whereat the film is exposed to the recording or reproducing light beam. The sprocket 3 is supported on a shaft 15, Fig. 2, which is driven from a prime-mover through a gear wheel 17. The sprocket 3 is coupled to the shaft 15 by a spring 19 which is fastened at one end to a pin 21 secured to the shaft 15 and secured at its other end to the sprocket 3 by a pin 23, Fig. 3. A slot 3a in the sprocket 3 allows relative movement of the sprocket on the shaft 15. To prevent free oscillation of the sprocket 3 a washer 25 is compressed between the sprocket and a collar 27 by a spring 29 that engages one face 33 of the sprocket. The upper sprocket 1 is mounted similarly on a sleeve 35 which is damped by a washer 41 compressed between the sleeve 35 and a collar 43 by a spring 45. The collar 43 is rotatably mounted on a stud 37 and is equipped with a pin 49 which engages the threads 51 on the stud 37. The sprocket 4 is a hold-back sprocket and is rigidly secured to a driven shaft 53. Flywheels 56, 58 are mounted co-axially with the rollers 55, 57 respectively to impart to the rollers an inertia effect. Due to the damping means the film is maintained in tension between the sprockets 1, 3 and so held in close engagement with the rollers 55, 57 and the surface of the plate 7. Variations in velocity of the film which might be set up by the damping devices are prevented by the resilient couplings 19, 40. If desired, both sprocket wheels 1, 3 may be driven from the prime-mover. According to a further modification, one of the sprocket wheels, which is then, in general, secured rigidly to its shaft, is driven at a speed slightly greater than the normal film speed at which the other sprocket wheel is rotated.
Patent GB-557974-A (GB)
Title: Improvements in and relating to electric protective systems responsive to out-of-step conditions
IPC: H02H3/48
Filed: 1942-06-03
Abstract: 557,974. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd. June 3, 1942, No. 7558. Convention date, June 3, 1941. [Class 38 (v)] In a protective system which is capable of distinguishing between asynchronous, out-ofstep, conditions and faults and power swings (hunting) so as to open a circuit-breaker and isolate the two parts of a system which are outof-step, means are provided for preventing the operation of the circuit-breaker except at or near the moment when the two voltages are nearly in phase, thereby minimizing the risk of restriking of the arc in the breaker due to the greatly-increased recovery-voltage obtaining when the voltages are considerably out-of-phase. In the application of the invention to the outof-step protective system described in U.S.A. Specification 2,095,117, wherein synchronous machines 10, 11 are adapted to be separated by a breaker 15 when out-of-step conditions prevail, a set of current relays or, as shown, impedance relays 19 .. 21 haying current and voltage windings. 28, 29, have their contacts 30 in series with the passing" contacts 27 of a power-directional wattmeter relay 18. Since out-of-step conditions affect all phases equally, ordinary faults (other than three-phase) do not affect all three contacts 30; also with hunting conditions, power reversals occur only at current-minima, so that again the relays 19 .. 21 remain unaffected when relay 18 changes over. With out-of-step conditions, however, a power reversal occurs at current-maxima and minima, corresponding to phase-opposition and phase-coincidence, respectively, of the two voltages, so that at currentmaxima, all contacts 30, 27 close. In order to distinguish between out-of-step conditions and three-phase faults; use is made of the fact that if a power reversal occurs with the latter, a second power reversal follows when the fault is cleared, so that it is necessary to make the system dependent on at least three reversals, for which purpose a notching relay 22 is stepped round once for each energizing of winding 34 when contacts 27, 30 close, the relay contacts 32 having a retarded opening due to a dashpot and the relay itself being released by a dashpot 37 if the individual operations are too widely separated in time. The means according to the invention comprise three minimum current relays or (as shown) voltage-to-earth relays 42 having parallel-connected contacts 41 in series with contacts 32, and dashpots which are so adjusted as to allow the relays to follow the voltagechanges in out-of-step conditions, whereby the relays pick up only at or near maximum voltage when the angular displacement is very small. The pick-up value of the voltage relays could be reduced after a time-delay by short-circuiting series resistances by means of a time relay energized by closure of contacts 32, Fig. 4 (not shown). The Specification as open to inspection under Sect. 91 refers also to power-factor relays. This subject-matter does not appear in the Specification as accepted.
Patent GB-795710-A (GB)
Title: Improvements in or relating to electronic discharge tubes
IPC: H01J19/34
Filed: 1956-03-12
Abstract: 795,710. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 12, 1956 [March 15, 1955], No. 7645/56. Class 39(1). An anode 10 forms part of the envelope of a discharge tube, and is connected to the glass base by an annular metal member 50 having at least one flange, and having an internal diameter less than that of the anode and base ; this acts to conserve the heat in the upper part of the tube, and also to protect the seals in the lower part from electron bombardment. The inner surface of the anode corresponds in shape to the outer surface of the cathode 11, so that the cathode-anode spacing is everywhere constant. The high-voltage diode rectifier shown has the cathode and heater connections in the form of coaxial lines 53, 55, but ordinary lead-in conductors may be used, Fig. 1 (not shown). The tube can be supported by a clamp gripping the anode, and completely immersed in oil, Figs. 3, 4 (not shown). Some tube dimensions and operational data are given.
Patent GB-705603-A (GB)
Title: Improvements in or relating to electronic amplifier systems
Inventor: LAKE EDWIN WALTER
IPC: H03F3/28
Filed: 1951-04-03
Abstract: 705,603. Valve amplifying circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 25, 1952 [April 3, 1951], No. 7670/51. Class 40 (6). [Also in Group XXXVIII] A signal derived from the unbalance of a bridge is fed to a push pull amplifier having one valve over-biased and one valve underbiased. In the circuit shown an A.C. output voltage from a bridge (not illustrated) is amplified in valve V1 and applied to diodes which feed rectified signals of opposite polarity through a D.C. path to the push pull valves V3, V4. Valve V3 has no cathode bias resistor and V4 a large resistor so that in the absence of a signal the output terminal X is at a low potential and Z at a high potential. As the signal increases the potential at X rises and Z falls. The bridge is initially unbalanced to such an extent that the potential at X and Z are equal so that a centre zero instrument may be connected to the output.
Patent GB-787127-A (GB)
Title: Improvements in or relating to the clarification of sugar juices
IPC: C13B20/12
Filed: 1954-03-17
Abstract: Suspended particles in sugar juices are precipitated by a synthetic water-soluble polyelectrolyte.  The polyelectrolyte may be a polyanionic linear polymer or copolymer containing a plurality of carboxyl groups or a salt thereof or it may be a polycationic linear polymer or copolymer containing a plurality of tri- and penta-valent nitrogen atoms present in the cations formed in aqueous solution. Defacated or raw sugar syrup can be treated, and a long list of polyelectrolytes is given of which the following are examples. Homopolymers of acrylic acids, their amides, and amine esters; copolymers of acrylic acids and vinyl compounds; and the inter-polymers of a ,b -unsaturated dicarboxylic acids with vinyl compounds.  1-100 parts of polyelectrolyte per million parts of sugar juice are preferably used.
Patent GB-1425786-A (GB)
Title: Process to manufacture potassium hydroxides
IPC: C01D1/04
Filed: 1974-02-20
Abstract: 1425786 Making alkali and ammonia from sewage M J NORTON 20 Feb 1974 7766/74 Heading C1A KOH solution is made by passing clarified sewage through a sodium charged cation exchange column whereby the column is charged with K<SP>+</SP> ions, passing strong NH 4 OH solution through the column to produce a column charged with NH 4 <SP>+</SP> ions and a solution of N@OH, NH 4 OH and KOH which may be boiled down to produce, in succession, NH 3  gas, N OH and KOH. The NH 4 <SP>+</SP> charged column may be revived by passing a strong brine solution therethrough and the Na<SP>+</SP> charged column may then be used to treat further sewage. The solution from the revival process contains NaCI and NH 4 Cl and this may be distilled with lime to recover NH 3  gas.
Patent GB-338467-A (GB)
Title: Improvements in conveyors
IPC: B65G27/00
Filed: 1930-03-10
Abstract: 338,467. Rock Springs Loader Co., (Assignees of Hatt, A. J., Johnson, A., and Pryde, J.). March 14, 1929, [Convention date]. Jigging conveyers. - A connecting device for adjacent sections of a jigging conveyer comprises a pin 15, a strap 16, and a wedge 17, Fig. 5. The straight part 18 of the pin is first passed through lugs 9 formed on the ends of straps secured to the sections and then the bent end 24 of the strap 16 is slipped over the tapered end 19<1>. Next the straight body portion 23 of the strap is swung towards the lugs and the inclined end 20 of the pin enters the circular aperture 26. The wedge 17 is then driven into the slot 21 and the parts are fastened securely together.
Patent GB-1103807-A (GB)
Title: Improvements in or relating to tunnel ovens
Inventor: SMITH JOHN ALFRED
IPC: A21B1/48
Filed: 1966-02-23
Abstract: 1,103,807. Tunnel ovens: air-conditioning. BAKER PERKINS Ltd. 14 Feb., 1967 [23 Feb., 1966], No. 7857/66 Heading A2A. To improve baking conditions in a tunnel oven having a baking chamber 1, which is divided, as by partitions 5, into longitudinally extending zones ... 2, 3 . . ., each zone is connected, through at least one suction port 8, to a suction header 6. Each zone is also in communication with the outer atmosphere through at least one air-inlet port 10, through which air is drawn into the zone to replace steam and spent heating air, which are withdrawn, through the port or ports 8, by a rotating fan 7, connected to the header 6. Each of the ports 8 and 10 may be provided with a slidable baffle or damper 9, operable from the outside of the oven. Products being baked are carried through the oven on a conveyer 4. A pair of air-inlet ports 10 may be located, in each zone, near each partition 5, and four suction ports 8 may be located between said pairs of air-inlet ports, so that indrawn air travels in a substantially longitudinal direction through each zone.
Patent GB-251405-A (GB)
Title: Process for separating enzymes from their solutions
IPC: C12N9/00
Filed: 1925-03-24
Abstract: 251,405. Sokal, S., (Kalle & Co., Akt.- Ges.). March 24, 1925. Enzymes.-A solution of an enzyme is treated with a neutral salt, such as common salt, sodium sulphate, or potassium chloride, and a precipitate which carries down the enzyme is then produced in the solution by adding a water-soluble salt of an aromatic sulphonic acid, such as sodium naph. thalene-a-monosulphonate, preferably in the form of a solution saturated with respect to the neutral salt previously added. A slight precipitate may be produced in the salt-saturated solution, as by means of calcium chloride and sodium phosphate, prior to the addition of the sulphonic acid salt. Examples describe the treatment of extracts of malt and of the pancreas gland. The treatment of an enzyme solution obtained as described in Specification 16198/14 also is referred to.
Patent GB-139644-A (GB)
Title: Improvements in and relating to carburetters
IPC: F02M23/09
Filed: 1919-03-29
Abstract: 139,644. Knight, J. March 29, 1919. Starting.-A starting-device comprises a fuel cup 11, the outlet of which is controlled by a valve 14 with a spreader 15 for mixing the fuel with air entering at 19. The mixture passes a suction-actuated valve-disk 17 and enters the induction pipe through a passage 13. The starting- device serves as an auxiliary air inlet during normal running.
Patent GB-458495-A (GB)
Title: Improvements in watertight couplings for cables
IPC: H02G15/18
Filed: 1935-03-14
Abstract: 458,495. Cable joints. SIGMUND, M., Lutin, near Olomouc, Czecho Slovakia. March 14, 1935, No. 7954. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 16, 1935]. [Class 38 (i)] A watertight cable joint is made by partially covering the bared ends 3, 4 of the conductors with an apertured conducting sleeve 5, running in tin to fill the apertures and to cover the remainder of the bared portions 6, 7, covering the joint and part of the insulation 1, 2 with a soft-rubber sheath 8, adding further soft-rubber wrappings 10, 11, 12, and vulcanizing so that the soft-rubber becomes united to the cable sheath to form a single liquid-tight unit. In a multi-core cable, each conductor is separately jointed and covered with a soft-rubber sheath 8, a vulcanite insert 9, Fig. 3, giving correct spacing. The joint of Fig. 3 provides for a. change-over from delta to star connection for a threephase motor and for this purpose the insert 9 is made hollow to accommodate the three connected leads 13.
Patent GB-195381-A (GB)
Title: Improvements in and connected with machines for grinding or surfacing gear teeth
IPC: B23F5/06
Filed: 1923-03-20
Abstract: 195,381. Lees-Bradner Co., (Assignees of Schurr, C. H.). March 23, 1922, [Convention date]. Gear-wheels, grinding and trueing teeth of; wheels.-In a gear-generating machine the rolling action is produced by means of a cam, which upon reciprocation with the gear-wheel undergoing treatment, causes a corresponding rotation of the gear. The machine comprises a base 1 carrying a standard 2 in which is journaled the shaft 5 of a grinding-wheel 6. The wheel is secured to the shaft by means of clamping- members 8, 9 and a nut 10, and the standard is arranged to allow of vertical and angular adjustment of the wheel. On a bracket 13 is supported an arm 15 having projection 16 carrying abutments 19 for the cam 29; the arm is adjustable vertically in the bracket. The abutments each comprise a plate 19<b> slidably adjustable in a boxlike chamber 19<a> by means of a screw 19<d>, and each plate may carry a roller 19<c1>. The base 1 is formed with ways 21 to receive a slide 20 carrying a spindle 22 to which the work, namely, a gear-wheel A, is secured. The spindle is rotatably mounted in sleeves 25, 26 which are rotatable in bearings 27, 28, and on the sleeve 25 is formed a flat face which engages a flat face on a lug 33<a> formed on the cam 29; by means of screws passing through openings 33<b> in the cam and in the sleeve, and of a slot 29<c> in the cam, Fig. 7, the cam may be removed readily and another substituted therefor. The cam is adjusted to contact with the abutments at points in a plane tangential to the pitch-circle of the gear-wheel, and the cam surfaces 29b are formed so that, upon reciprocation of the slide by means of a link 39 and an adjustable crank-pin 38, a corresponding rotation is imparted to the gearwheel to produce correct tooth profiles. In order to index the gear-wheel, the sleeve 25 is provided with a disc 31 having a series of spaced openings 31<a>, and on the spindle 22 is a crank 32 having a pin 32<a> which may engage any of the openings. The grinding-wheel may reciprocate, instead of the work. Specifications 187,663 and 195,380 are referred to.