baber/WOPTO huggingface dataset:
Patent GB-103378-A (GB)
Title: Improvements in and relating to Chimney Pots and Cowls.
Inventor: DAVIES JOHN HARVEY
IPC: F23L17/10
Filed: 1916-03-08
Abstract: 103,378. Davies, J. H., and Waite, J. March 8, 1916. Chimney tops.-In a cowl of the kind fitted with oppositelyarranged hinged doors connected by stays so that the closing of one door by the wind opens the opposite door, an adjustable weight g<1> is fitted on each stay g so that the door e which faces the most offensive wind hange, in a calm, closer to the cowl, and closes more readily when this wind blows. The stays g may be curved over the top of the cowl to remove them from the action of the smoke &c.
Patent GB-106106-A (GB)
Title: Improvements in or relating to Condensing Steam Turbine Installations.
Inventor: BAUMANN KARL
IPC: F01K11/02
Filed: 1916-03-09
Abstract: 106,106. Baumann, K., and Scanes, A. E. L. March 9, 1916. Straight tubes between headers.-Relates to condensing steam turbine installations wherein the exhaust casing of the turbine is provided with guide walls adapted to divide into portions the steam leaving a row or rows of moving blades, and consists in dividing the condenser into a number of compartments each acting as a separate condenser by means of partitions forming continuations of some or all of the said guide walls, the object of the invention being to obviate deviations from the shortest steam path arising from the variations in the temperature of the cooling water throughout the condenser. Portions of the compartments A, B, C, Figs. 8 and 9, D, into which the partitions 3, 7 divide the condenser are divided off by plates 18, 17, 16, 15 to form communication channels between adjoining compartments, so that the air and non-condensable-gases may be drawn by an air-extraction device in the direction shown by the arrows from the compartment D operating at the highest temperature through the compartments C, B, A of successively decreasing temperatures.
Patent GB-432964-A (GB)
Title: Improvements in or relating to aluminium alloys
IPC: C22C21/00
Filed: 1934-02-02
Abstract: Alloys containing at least 90 per cent of aluminium are prepared by adding iron and/or ferromanganese and if desired silver to part of the aluminium and the alloy containing one, two or three additions so produced is alloyed with magnesium so as to produce an alloy containing 42-54 per cent of magnesium, 3-20 per cent of the alloy so produced being then melted up with the remainder of the aluminium to produce the finished alloy.  Alloys so prepared contain at least 90 per cent of aluminium, 1,5-9,5 of magnesium and also 0,01-1 of iron or 0,05-0,8 of ferromanganese either individually or conjunctively. The alloys may also contain 0,008-0,9 per cent of silver.
Patent GB-1508272-A (GB)
Title: Periodate stabilised hypochlorites
IPC: D06L3/06
Filed: 1976-01-29
Abstract: 1508272 Periodate stabilized hypochlorites IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Dec 1976 [29 Jan 1976] 03545/76 Heading C1A An aqueous hypochlorite solution is stabilized against decomposition by the addition of the amount of periodate ions required to reduce the rate of decomposition of the hypochlorite ions due to the presence of trace metal compounds in the solution e.g. Fe, Cu and Ni. Silicate ions may also be added to the hypochlorite solutions. The hypochlorite solution may comprise alkali metal or alkaline-earth metal hypochlorite solutions or hypochlorous acid.
Patent GB-136707-A (GB)
Title: Improvements in or relating to Rotary Casting Machine Moulds.
Inventor: OUBRIDGE WILLIAM ARTHUR
IPC: B22D13/00
Filed: 1919-02-14
Abstract: 136,707. Owbridge, W. A. Feb. 14, 1919. Casting-machines; moulds; castings, extracting; clamping moulds. - Centrifugal casting-machines of the type described in Specification 118,304 have the mould cover connected to the body by means such as an interrupted screw or a bayonet-joint. Fig. 1 shows the latter means, and the cover is held, during engagement and release, by a pair of shoes on arms 13 engaging a groove 11 and drawn together by a right, and left handed screw 20. The holding-means is mounted in a saddle 15 traversable by a rack and pinion to carry the cover clear of the mould during ejection by the plunger bottom 2 and air cylinder 28. The machine spindle is fitted with a brake 29.
Patent GB-136379-A (GB)
Title: Improvements in Appliances for Drying Sand for Foundry or other Purposes.
Inventor: DIGGER ALFRED PERCY
IPC: F26B11/04
Filed: 1919-02-17
Abstract: 136,379. Digger, A. P. Feb. 17, 1919. Continuous - discharge apparatus, rotary.-A dryer for sand for use in foundries or for other purposes consists of a rotatable cylinder C the shaft C<4> of which is journaled in bearings on the removable end cover of an inclined stationary casing A. The cylinder has longitudinal ribs or baffles on its inner surface to agitate the sand, and is heated by gas burners D or by electric coils. The casing has trunnions A<2> which rest on bearings in a standard B, and is supported near its lower end by a screw B<4> which enables the inclination and therefore the rate of flow of the sand through the cylinder, to be varied. The moist sand is fed from a hopper F into the cylinder through an aperture in the upper end cover of the casing, and, after being dried by contact with the heated cylinder, is discharged through an aperture in the lower end cover.
Patent GB-1193784-A (GB)
Title: Electronic Transmission Shift Indicator or Control
IPC: G01P1/10
Filed: 1968-01-25
Abstract: 1,193,784. Change-speed control. CATERPILLAR TRACTOR CO. 25 Jan., 1968 [30 Jan., 1967], No. 3889/68. Heading F2D. A down-shift indicator or control for a machine such as an earth-moving vehicle to prevent overspeeding of the engine, comprises a detector for producing a signal proportional to engine speed which is compared with a reference signal representative of an engine speed below which a downshift may be safely effected and a circuit responsive to the first signal being greater than the reference signal for operating an indicator or actuating a shift-lock. As shown, a magnetic detector produces a waveform 24 the positive pulses 31 of which are passed via diode 28 to a Schmitt trigger 33 whose output is converted by a monostable vibrator 37 to a square wave 39 of constant amplitude and pulse width. Wave 39 is averaged by a frequency-D.C. converter 41 to a D.C. output 42. An operational amplifier 43 compares output 42 with a D.C. reference signal from a source 44 and if output 42 is greater, the resultant signal is passed to a control circuit 46 including a lamp 51 normally energized through a transistor 49. The said resultant signal causes a second transistor 48 to drive transistor 49 to its non-conducting state so that lamp 51 is turned off indicating that downshifting is unsafe.
Patent GB-718202-A (GB)
Title: Improvements in the processing of sulphur-containing solid materials
IPC: C01B17/50
Filed: 1952-02-14
Abstract: Minerals or gas purifying masses containing elementary sulphur are roasted in a fluidized bed consisting predominantly of roasted particles of the same kind, by the upward passage of an oxygen containing gas.  Sulphidic materials such as pyrites may be mixed with the sulphur-containing masses and roasted therewith.  The solids may be employed in grain sizes up to 10 mm. or disintegrable agglomerates up to 20 mm. may be used.  Temperatures may be from 400-1100 DEG  C.  According to examples (1) gas-purifying mass having a sulphur content of 46.8 per cent. is supplied at 1160 kilos. per hour to a fluidized bed of roasted gas purifier mass maintained at 900 DEG  C., the grate surface area being 1.23 sq. metres and its quiescent height, 45 cm.  The roasted product, containing 2.68 per cent. sulphur, of which 2.49 per cent. is sulphate, is removed by entrainment and the roaster gases contain 17 per cent. sulphur dioxide and 6.5 grams sulphur trioxide per cubic metre.  (2) Keciborlu (a Turkish sulphur mineral containing 70 per cent. elementary sulphur) is fed at the rate of 440 kilograms per hour per square metre of bed cross-section, to a bed consisting predominantly of roasted particles of the same kind maintained at 825 DEG  C.  A gas containing 18.5 per cent. SO2 is obtained and the roasted ore containing about 1.9 per cent. sulphur is mainly entrained with the roaster gases.  Other sulphur minerals such as Sicilian and Italian minerals containing 20 to 33 per cent. sulphur in addition to gypsum, clay and limestone, as well as those having a low sulphur content (10-15 per cent.) may be used.  Reference has been directed by the Comptroller to Specification 708,972.
Patent GB-788552-A (GB)
Title: Improvements in or relating to electrical impulse receiving circuits
Inventor: FORSHAW GEOFFREY
IPC: H04Q1/32
Filed: 1955-02-11
Abstract: 788,552. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Feb. 7, 1956 [Feb. 11, 1955], No. 4089/55. Class 40 (4). [Also in Group XL (c)] An impulse responding relay is arranged to be operated by the emitter current of a junction transistor whose collector-base circuit is connected across the impulsing loop. The P.N.P. transistor in the Stone bridge shown is normally biased beyond cut-off by positive potential applied to the base. The small current normally flowing between emitter and collector is limited by resistance R1 to a value insufficient to operate relay A. When the loop LJ is closed, the base of the transistor receives negative bias over the loop and conducts to cause emitter-base current to flow thereby operating relay A. The emitter current Ie is composed of two parts, viz: the base current Ib which flows round the loop, and the collector current Ic. As the loop resistance increases, Ib falls, but since the voltage across the collector base circuit increases, Ic increases in compensation. The resistor R1 may be made inductive to reduce its shunting effect on speech currents. The circuit may instead use an N.P.N. transistor, Fig. 2 (not shown), or may be adapted for use in a Hayes bridge, Fig. 3 (not shown).
Patent GB-195355-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H33/75
Filed: 1923-02-12
Abstract: 195,355. British Thomson - Houston Co., Ltd., (Assignees of Hilliard, J. D.). March 25, 1922, [Convention date]. Oil switches.-The oil and gases &c. ejected from the tank of an oil switch when circuit is made and broken. a.re cooled by being passed through a container filled with gravel, porcelain pellets or similar material and attached externally to the tank. According to one construction. the gases &c. enter and leave through perforated discs 16 and follow a tortuous path round baffieplates 13. Holes 15 are provided for drainage. An auxiliary chamber may also be arranged between the container and the switch tank to limit the quantity of oil which reaches the container.
Patent GB-539283-A (GB)
Title: Improvements in or relating to telephone or like systems
IPC: H04Q5/16
Filed: 1940-03-06
Abstract: 539,283. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. March 6, 1940, No. 4167. Corivention date, April 27, 1939. [Class 40 (iv)] A piezo-electric relay is used as an impulse repeating relay in telephone and like systems. The arrangement is shown in an individual repeater, over which a local-battery subscriber controls the switches at a small C.A.X., and in the switches themselves which are also available to common-battery subscribers. Repeater.-When the receiver is removed at the local battery sub-station a circuit is completed via both line-wires in parallel, the dial springs 25 and a sub-station ground for the piezoelectric repeating relay 213 which energizes 220 and bridges the outgoing side of the repeater to cause a line switch to seize a group selector. The piezo-electric relay repeats the dialled impulses and ultimately releases the connection in the ordinary way. In the case of incoming calls, ringing current from the final selector energizes 230 which energizes a slow-to-release relay 210 to cause the ringing current to be extended to the sub-station. When the subscriber replies, the piezo-electric relay energizes 220 which cuts off 230 and operates the ring-trip relay in the final selector. Final selector.-In response to the bridging of the incoming wires when the switch is seized 110 pulls up energizing 115 and the piezoelectric relay 160, which is normally energized and is so shown in the drawing, is short circuited and falls back and energizes release relay 120. The digits are repeated by the piezoelectric relay to the switch magnets in succession and the subsequent operations take place in known manner.
Patent GB-1061508-A (GB)
Title: Improvements in or relating to a saw
IPC: B23D61/02
Filed: 1966-01-31
Abstract: 1,061,508. Sawing. G. GRASSMANN. Jan. 31, 1966, No. 4172/66. Addition to 1,030,647. Heading B5L. A saw blade comprises teeth widened by a displacement of the material and the forming of notches in the cutting edges of those teeth, the notch or notches in any one tooth being staggered in relation to the notch or notches in an adjacent tooth. The teeth 1 ... 6 of the saw blade, which may be a hotsaw blade, are expanded laterally by blows of a wedge which form the notches. The notches 7 in teeth 1 and 4 lie in the centre plane 12 of the blade while teeth 2 and 3 each have a pair of notches 8, 9, notches 8 being nearer the plane surfaces 13 of the blade and of less depth than notches 9 which are of less depth than notch 7. The notches 10 and 11 in the teeth 5 and 6 are offset on opposite sides of the centre plane 12.
Patent GB-112859-A (GB)
Title: Improvements in Air Intake Heaters for Explosion Engines.
Inventor: STAPLES JOHN SEWELL
IPC: F02M1/00
Filed: 1917-03-23
Abstract: 112,859. Staples, J. S. March 23, 1917. Heating charge. - An air intake heater comprises a tubular water or exhaust-heated body a adapted to be connected at one end d to the carburettor and enclosed by a bell-shaped casing g in such a way that the air passes around and then through the heated body a, as indicated by the arrows. The end d of the casing may be fitted with a regulating-slide, and the end e is of flattened section and of slightly larger area than the end d. The tubular body a is a double-walled member closed at one end by a detachable lid f, the lid f and the casing g being secured by nuts h and screws h<1> passing through distance-pieces j between the heated body and the casing g. Specification 111,725 is referred to.
Patent GB-377589-A (GB)
Title: Improvements in or relating to wheels
IPC: B60B1/12
Filed: 1932-02-12
Abstract: 377,589. Vehicle wheels. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Rosenberg, R. H. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) Feb. 12, 1932, No. 4245. Convention date, Feb. 12, 1931. [Class 144 (i).] A metal wheel, shown as a builtup artillery wheel, comprises an inner portion 13 formed of ordinary carbon steel, the outer side 14 being formed of stainless steel, such as chromium steel. In a modification, both sides of the wheel are formed from ordinary carbon steel, the outer side having a coating of stainless steel welded or otherwise secured thereto. The parts of the wheel are preferably united as described in Specification 335,491, [Class 83 (iv), Metals, Working].
Patent GB-465637-A (GB)
Title: Improvements in method of and apparatus for shaving and burnishing gears
IPC: B21H5/02
Filed: 1936-02-13
Abstract: 465,637. Gear cutting. SIMMONS, O. G. Feb. 13, 1936, No. 4348. Convention date, March 7, 1935. [Class 83 (iii)] Apparatus for simultaneously shaving and burnishing gears comprises a gear form cutter having circumferential grooves extending helically around the cutter and through the teeth thereof. The operation may be carried out on existing burnishing machines or by means of attachments mounted on a milling machine, lathe or other machine tool. A helical gear 15, Fig. 1, is shaved and burnished by means of a number of cutters 16, 16a, 16b which are in the form of helical gears of opposite hand from the gear 15 but of the same helix angle, pitch and pressure angle. The cutters are preferably of larger diameter than the work and are provided with a number of helical grooves extending completely through the teeth either forming part of a continuous helix or forming a number of separate helices. By rotation of the cutters and work, and the application of relative radial pressure the cutting edges formed by the helical grooves take a large number of shaving cuts on the work and the lands of the cutter teeth perform simultaneously a burnishing action on the work. The cutters may, as shown, have different numbers of helical grooves. The upper cutter 16 is mounted on the spindle of a milling machine while the two lower cutters 16a, 16b are journalled in a bracket 23 attached to the machine table. The bracket carries a slotted plate 25 in which the stub shaft 26 supporting the work is mounted. The work is held against axial movement by ball thrust bearings but is allowed free radial movement so that it floats between the cutters. The drive is imparted through the cutter spindle which is rotated alternately in opposite directions, pressure feed being given by elevating the machine table. In a modification the floating movement may be given to the cutters instead of the work. In the case of straight toothed spur gears, the cutters employed are similar spur gears, Fig. 6, provided with a plurality of helical grooves which may be different for different cutters. The invention may also be applied to the finishing of spline shafts. In the application to internal gears, Fig. 8, the gear blank 35 is secured by the flange 36 to a head 38 which may be mounted on a lathe spindle, the cutters 39 are mounted on shafts 40 radially adjustable in an attachment (not shown) secured to the slide rest. In operation the head 38 is rotated alternately in opposite directions and the shafts 40 fed radially outwards to apply pressure feed. In a modification an internal helical gear having an outwardly extending flange is shaved and burnished by means of a single cutter. Since there is no relative axial movement between cutter and work, a gear 50, Fig. 11, adjacent a flange 49 may also be finished as above described. The action of the various cutting edges of the cutters in taking a number of overlapping cuts along the length of the teeth is described in detail in the Specification.
Patent GB-1385031-A (GB)
Title: Fluid flow control systems
IPC: F16K31/122
Filed: 1972-01-31
Abstract: 1385031 Fluid digital-analogue converters PROCESS SYSTEMS Inc 31 Jan 1972 [2 Feb 1971] 4392/72 Heading G4P [Also in Division F2] A digital or analogue, fluid-flow control system comprises a plurality of valves, of which two, 10 and 13, Fig. 3, are shown, each valve consisting of a movable sleeve 33 for controlling the flow of fluid through perforations 32 in a stationary cage 30. The sleeve is normally held in an open or closed position, by a spring 92; but is arranged to be moved by fluid-pressure acting on a piston carried by an actuating rod 34. The fluid is supplied to the individual actuators from a common inlet manifold 64 and is exhausted into a common outlet manifold 65. The flow of fluid through ports 67 to and from the individual actuators is controlled by electromagnetically operated valve members 100, Fig. 4A, which co-operate with seats 68 and 101 communicating, respectively, with the inlet manifold 64 and the outlet manifold 65. The fluid flow rate from conduit 16 into conduit 17 is controlled by selectively opening and closing different combinations of valves which have perforation areas following a geometric progression.
Patent GB-1445674-A (GB)
Title: Cyclohexanediol derivative and process for preparing the same
IPC: C07D303/16
Filed: 1975-01-31
Abstract: 1445674 1,5-Diazido-2,3-cyclohexanediol LABAZ 31 Jan 1975 [15 Feb 1974] 4417/75 Heading C2C The invention comprises a compound of the formula which may be obtained by heating in a solvent such as DMF or hexamethylphosphoric triamide, in the presence of an alkali metal azide a compound of the formula wherein R 1  is N 3  when R 2  is H or R 1  is H when R 2  is alkylsulphonyloxy or arylsulphonyloxy and R 3  is alkylsulphonyl or arylsulphonyl. This product is useful in the preparation of the corresponding diaminocyclitol and its acid addition products. The compounds of Formula II may be obtained by treating in a solvent, e.g. pyridine, an epoxide of formula with a chloride of the formula to give an epoxide of the formula and heating this compound with an acid, e.g. aqueous H 2 SO 4  solution.
Patent GB-1199703-A (GB)
Title: Process for Directly Reducing Materials Containing Iron Oxide in a Rotary Kiln
Inventor: HEITMANN GUNTER
IPC: C21B13/08
Filed: 1969-01-27
Abstract: 1,199,703. Reducing iron ore in a rotary kiln. METALLGESELLSCHAFT A.G. Jan. 27, 1969 [Feb.9, 1968], No.4483/69. Heading C7D. An iron oxide-bearing material is reduced by a solid carbonaceous reducing agent supplied from the discharge end of the kiln while a sulphurbinding substance such as lime or dolomite is supplied at least in part directly to the reduction zone the total amount of that substance not exceeding 4% of the weight of the ore. The sulphurbinding material is preferably supplied entirely to the reduction zone and may be charged alone or mixed with the reducing agent; it may be distributed over one-third of the length of the kiln, and desirably has a particle size between 0À1mm. and 2mm., with 80% being below 1 mm.
Patent GB-924222-A (GB)
Title: Electrical generation system for supplying a service on a train
Inventor: OLDHAM PERCY HAROLD
IPC: B61C17/06
Filed: 1960-02-09
Abstract: 924,222. Regulating. BRUSH ELECTRICAL ENGINEERING CO. Ltd., Feb. 8, 1961 [Feb. 9, 1960], No. 4488/60. Class 7(6) [Also in Group XXIX] In an electrical generation system for a service such as train heating, driven from a locomotive diesel/hydraulic power plant, means are provided for varying the field current of the generator according to the excess power available at any speed within the engine operating range. At each position of master controller 10, Fig. 2, motor 11 rotates a selector 9, which through chains and sprockets 12 ... 15, correspondingly sets a screw device 17 and an engine governor 16 to move a rod 18 proportionally to engine speed and to rotate cam 23 proportionally to the engine power output. Movements of rod 18 and cam 23 are combined to move a rod 24. A valve 32 operated by rod 24 directs engine pressure oil to control an hydraulic vane motor 33 connected to rheostat 37, the position of the vane being proportional to the excess engine torque available. Changes in resistance produced by rheostat 37 alter the setting of a carbon pile voltage regulator 39 to vary current in the shunt field F of a generator G. When the generator voltage corresponds to the train heater rated voltage, rheostat 37 is is fully rotated and regulator 39 functions normally. Overload protection is effected by a current relay 40 shorting a resistor 42 by means of a contact 41 to cause the voltage across control coil 38 to rise suddenly thus producing a drop in the generator shunt excitation. Alternatively an overload relay is provided in series with the generator. The engine speed may be raised slightly to provide sufficient excess power for heating when the locomotive is stationary, the torque converter oil being removed simultaneously to prevent overheating thereof, and safety interlocks being provided to prevent damage. in another embodiment a valve 132 Fig. 3 is arranged to direct pressure oil to an hydraulic piston arrangement which operates a voltage regulating carbon pile 139 through a compression coil spring 141. The arrangement may be applied to a plurality of series or parallel connected engines.