baber/WOPTO huggingface dataset:
Patent GB-598332-A (GB)
Title: An indicating instrument or gauge for use in a system for indicating the quantity of material in a container
IPC: G01F23/16
Filed: 1945-08-17
Abstract: 598,332. Measuring cubical contents. SQUARE D CO. Aug. 17, 1945, No. 20982. Convention date, Aug. 19, 1944. [Classes 106 (i) and 106 (iv)] An instrument for indicating the quantity of material in a container, e.g. fuel in a tank, comprises a pressure-tight box initially in communication with the container, an aneroid capsule in the box, means for inserting a measured quantity of fluid at will into the container and for establishing the resulting increased pressure in the capsule while maintaining the initial pressure in the box, and an indicator moved by the resulting movement of the capsule, the transmission ratio between the aneroid and the indicator being varied by a second aneroid sensitive only to the pressure in the box. An aneroid capsule 29 is situated in a pressure-tight box and is connected to the fuel' tank 64 and also to valve 34 which normally puts the capsule into communication with the instrument casing so that the pressure in the casing is equal to that in the fuel tank. When a reading is to be taken, a spindle 51 is turned to close the valve 34 and, by switching means 54, to start a motor 71 which drives a piston 67 to the bottom of a cylinder 65 connected to the fuel tank to inject a known volume of gas into the tank. The resulting rise in pressure causes the capsule 29 to lift an arm 36 to rock a lever arm 25 fixed to a rod 19, this in turn permitting the rocking of another lever arm 43 on a shaft 42 carrying a gear segment 44 driving a pointer 48. The transmission ratio between the arm 36 and second lever arm 43 depends on the longitudinal position of the rod 19. This position is varied by a second aneroid capsule 17 sensitive only to the pressure in the box, i.e. the initial pressure in the fuel tank. The upward movement of the arm 36 depends upon the rise in pressure upon the injection of the known volume of gas, the reading of the pointer 48 thus being a function of the volume of fuel in the tank.
Patent GB-1420241-A (GB)
Title: Scanning device
IPC: G01R5/10
Filed: 1973-05-03
Abstract: 1420241 Automatic control of speed EASTMAN KODAK CO 3 May 1973 [3 May 1972] 21093/73 Heading G3R The deflection of a beam is linearized with respect to a beam deflection drive signal by varying the drive of a deflecting means according to a signal whose frequency is proportional to the measured beam scan velocity. As shown, light from source 16 e.g. a laser or projector bulb is deflected by an oscillating mirror 13 in a galvonometer and by a fixed mirror 19, through an optical grating 22 to a photo-cell 28. The cell receives light modulated by the grating at a frequency proportional to the spacing of opaque lines on the grating and to the beam scan velocity. The photo-cell output passes via a frequency discriminator 32 e.g. a bank of narrow pass filters, and an amplifier 34 to a comparator 36. The comparator 36, which may be a differential integrator, compares the signal from discriminator 32 with a speed reference, from source 38, that is related to the slope of the mirror drive signal from source 40. Any difference is used to supplement, via phase shifter 39, the mirror drive signal to linearize the beam deflection with respect to this drive signal and thus to regulate the beam scan velocity. The drive signal may be sawtooth or parabolic making the speed reference constant or time varying respectively. The apparatus may be used with radiation other than light in scanning systems with a rotating polygon or lens, or in a CRT display.
Patent GB-575345-A (GB)
Title: Improvements in or relating to gauges
IPC: G01B5/08
Filed: 1943-12-16
Abstract: 575,345. Linear - dimension gauges. TRICO PRODUCTS CORPORATION. Dec. 16, 1943, No. 21144. Convention date, April 21. [Class 106 (ii)] A gauge for measuring internal dimensions comprises a pair of internal caliper fingers of which one is fixed and the other is carried by a movable support which is urged towards a movable actuating member whose movements are amplified and visually indicated, the movable support being normally held out of contact with the actuating member by a spring-actuated retractor whereby a workpiece can be placed over the caliper fingers without affecting the actuating member, manually operable means for releasing the retractor being provided so as to allow the movable finger to move into contact with the work-piece. Adjustable stops may be provided to limit movement of the movable support, and means may be provided for rendering the retractor inoperative. Work to be gauged, e.g. a tube 44, is placed on the table 11 over the fixed finger 23 and movable finger 22. The latter is mounted on a slide 25 secured to the base 1 by two leaf springs 29, and is urged away from the finger 23 by a tension spring 34 anchored at 35. The end of the slide 25 contacts the plunger 3 of a dial indicator 2, whereby departures from standard size are indicated. A retractor in the form of a crank 38, 39 is mounted with a coil spring 37 which acts in opposition to the spring 34 and normally exerts pressure on the abutment 40 of the slide 25 to maintain the fingers 22, 23 closed. The retractor 38 is provided with a finger plate 41 which can be depressed to allow the spring 34 to move the finger 22 into contact with the work ; it may be maintained in a depressed position by a plunger 23 for snap gauging. The table 11 may be mounted on a pillar 12 sliding in a tubular support 10 and spring loaded to maintain it in a raised position ; by depressing the table 11 manually the bore of the tube 44 can be checked at different heights. For locating the tube, an adjustable cross-pin 46 carried in a support 47 may be provided. The support 47 and fixed finger 23 are both adjustable and are clamped by the nut 49. Specification 569,012 is referred to. '
Patent GB-1269523-A (GB)
Title: Improvements in or relating to nuclear reactor
IPC: G21C15/02
Filed: 1969-04-25
Abstract: 1,269,523. Reactors. BABCOCK & WILCOX CO. 25 April, 1969 [25 April, 1968], No. 21213/69. Heading G6C. A pressurized water nuclear reactor includes an upright pressure vessel 10, an annular core shield 13 spaced inwardly of the pressure vessel to define an annular passageway 16, a reactor core 22 positioned within the core shield 13 above a plenum chamber 24 and forming the outlet for the plenum chamber, means whereby water that has flowed through the annular passageway 16 may pass into the plenum chamber, and means for imparting a swirl to water flowing through the chamber 24. The water enters the vessel 10 through four circumferentially spaced inlet nozzles 15 and is directed down the annular passageway 16 by inverted U-shaped baffles 27 positioned on the core shield 13 in alignment with the nozzles 15. A series of inclined vanes 30 are attached to the inner surface of the dome-shaped bottom closure 12 of the vessel 10, causing the water from the annular passageway 16 to swirl in the chamber 24. The upper boundary of the plenum chamber 24 is formed by a dome-shaped perforated baffle 31. A vortex inhibitor 29 is attached to the lower central portion of the baffle 31 to control the rotation of the swirling mass of water entering the perforations of the baffle and to increase the flow to the central portion of the baffle with a minimum of energy dissipation. The swirling movement promotes a substantially uniform water flow and water temperature distribution to and through the core 22. The temperature difference required for safety between the temperature of the water leaving the reactor and the saturation temperature of the water can thus be minimized. A condition of unbalance in the incoming water flowing to the annular passage 16 could be caused by many circumstances, e.g. a pump failure in one of the four lines leading to the inlet nozzles 15, and if means for equalizing the flow and temperature were not provided the maldistribution of water entering the core could have serious consequences.
Patent GB-1512950-A (GB)
Title: Electrical testing apparatus
IPC: G01R31/04
Filed: 1975-07-28
Abstract: 1512950 Testing circuits PLESSEY CO Ltd 28 July 1975 [14 May 1974] 21227/74 Addition to 1386092 Heading G1U The system described in the Parent Specification is modified in that having performed one test cycle in which various inputs to a circuit under test are earthed and earth potential is then looked for at various other circuit points, another cycle is then performed with an appropriate non-zero bias voltage applied to the various points, whereby those short circuit faults within the circuit under test that are shunted by p-n junctions can be detected  by the fact that a forward-biased current-carrying p-n junction drops about 0À8 volts.
Patent GB-167770-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/46
Filed: 1921-08-10
Abstract: 167,770. La BoissiÞre, J. de, (Assignee of Morel, M.). Aug. 10, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Sparking-plugs.-Two insulated conductors d, e are mounted in the inner portion b of the insulator. The conductor d is screwed into or otherwise connected electrically to the current lead f in the outer insulator c. The conductor e is formed with a head g which rests within a recess in the insulator b and is insulated from the metal f bv an asbestos packing k. Sparks in series are therefore formed between the ends of the conductors d, e and o.
Patent GB-827613-A (GB)
Title: Improvements in or relating to method of forming thin printing transparancies and method of forming die plates for use in said method
IPC: G03F1/92
Filed: 1956-07-10
Abstract: 827,613. Article for photomechanical procedure. WILLIAMS, J. July 10, 1956. No. 21320/56. Drawings to Specification. Class 98(2) A "thin printing transparency" stated to correspond to a photographic negative from which an offset printing plate may be made, is itself made by first forming a metallic plate with desired shallow depressions that do not exceed "a two bite deep etched depth", lubricating this metallic plate, moulding one side of a rigid core having partially cured layers of thermosetting material on both sides against this lubricated metallic plate under heat and pressure to form a hard die plate, and moulding a thin transparent thermoplastic sheet against the hard die plate under heat and pressure to form the " thin printing transparency." The mouldings may be arranged to produce more than one hard die plate and " thin printing transparency " in each of the respective operations. U.S.A. Specification 1,939,749 is referred to.
Patent GB-1270613-A (GB)
Title: A compacting device
IPC: B30B9/30
Filed: 1970-05-04
Abstract: 1,270,613. Device for automatically compacting waste material. INTERNATIONAL DYNETICS CORP. 4 May, 1970 [8 May, 1969], No. 21388/70. Heading B8C. Apparatus for automatically compacting waste material comprises a tubular steel chamber 11 of square cross-section which is closed at its rear end 17 and has, at its forward end, a discharge opening 18 closable by a gate 37 and which accommodates a ram piston 32 which has an upper row of teeth 34 and normally rests in position A, Fig. 7, where a gate defining plate 33 carried by the ram 32 closes a rectangular feed opening in the upper plate 33 of the chamber 11. A shoot 23, coupled to a flange 22 around the opening 21 and leading to one or more rubbish depositing openings, has a vertically adjustable photo-electric sensor 60. A bank of seven position-sensing microswitches S1A, S1B, S2-S6, each carrying a cam follower roller, are transversely-spaced across the top of a ram cylinder 29 and co-operate with corresponding switch actuating cams C1A, C1B, C 2 - C 6 , Fig. 2A, which are variously axially located in corresponding transverse relationships to the micro switches beneath the gate plate 33. The switch arrangement is incorporated in an electrical control circuit, Fig. 9 (not shown), which includes a fluid reservoir (57) and a high-pressure, variable displacement, pump (58) which supplies either normal, or high, pressure to one end of the hydraulic cylinder (29) through a four-way valve (56) actuated by solenoids (VR, VF). The control unit functions so that, with the gate 37 closed and a time delay of about 10 seconds after sufficient waste has accumulated on the gate plate 33 in the shoot 23, the ram 32 reciprocates backward and forward between positions A and C, Fig. 7, to pack material in a compression chamber 19 behind the gate 37. When the density of the material reaches a certain value the corresponding rise in hydraulic ram pressure stops the ram 32. Additional compression cycles of the ram 32 can be obtained, at this stage, by pressing a switch (S9). Unloading is carried out by unlatching the gate 37 and swinging it downwardly, and then placing an empty bag 65 over the discharge opening 18 whereupon the switch (S9) is pressed and the ram 32 is advanced to position D to displace the compacted mass 66 into the bag 65 which is then removed. The ram 32 is then returned to its original position A and the gate is closed for the compacting cycles to be repeated. If, during the ejection stroke of the piston 32 up to position D, the gate 37 is raised from its open position, the ram 32 is returned to its intermediate stand-by position. Also, if due to an obstruction, the ram 32 jams the rise in hydraulic pressure causes a switch (HS) to be actuated so that reciprocation of the ram 32 takes place at a higher pressure. In a modification, Fig. 13 (not shown), the gate (37) is mounted about a vertical hinge pin to swing horizontally. Fig. 10 shows the latching mechanism for the gate 37.
Patent GB-358603-A (GB)
Title: Improvements in or relating to coating compositions
Filed: 1930-07-15
Abstract: Relates to varnishes, impregnating solutions, lacquers, enamels, &c., containing a reactive phenol-oil-aldehyde resin which may be cured by baking.  A "phenol-oil-composition" made by treating phenol with a fatty oil in the presence of a converting agent such as phosphoric acid, aluminium chloride, &c., is condensed with aqueous formaldehyde or other methylene-containing compound in the presence of a high-boiling solvent which retards gelation, and water is removed from the product at a temperature not substantially higher than 120 DEG  C.  Solvents specified are butanol, amyl alcohol, and ethylene glycol mono-ethyl ether.  The removal of water from the reaction product may be effected by vacuum distillation, by adding toluene or other hydrocarbon forming a constant boiling mixture boiling below 120 DEG  C. and also below the boiling points of the solvent and of its constant-boiling mixture with water, or where the high-boiling solvent is butanol, a further quantity of butanol may be added to the reaction product so that the water is removed as a constant-boiling mixture with butanol and sufficient butanol remains to keep the resin in solution.  Specifications 267,736 and 329,313, [both in Class 95, Paints &c.], are referred to.ALSO:Relates to varnishes, impregnating-solutions, lacquers, enamels &c., containing a reactive phenol-oil-aldehyde resin which may be cured by baking.  A "phenol-oil-composition" made by treating phenol with a fatty oil in the presence of a converting agent such as phosphoric acid, aluminium chloride &c., is condensed with aqueous formaldehyde or other methylene-containing compound in the presence of a high-boiling solvent which retards gelation and water is removed from the product at a temperature not substantially higher than 120 DEG  C.  Solvents specified are butanol, amyl alcohol, and ethylene glycol mono-ethyl ether.  The removal of water from the reaction product may be effected by vacuum distillation, by adding toluene or other hydrocarbon forming a constant-boiling mixture boiling below 120 DEG C. and also below the boiling points of the solvent and of its constant-boiling mixture with water, or where the high-boiling solvent is butanol, a further quantity of butanol may be added to the reaction product so that the water is removed as a constant boiling mixture with butanol and sufficient butanol remains to keep the resin in solution.  Specifications 267,736 and 329,313, [both in Class 95, Paints &c.], are referred to.
Patent GB-990801-A (GB)
Title: Treatment of alumina
IPC: C01F7/442
Filed: 1962-06-04
Abstract: The soda content of soda-contaminated alumina hydrate is reduced and a substantially 100% crystalline alpha-alumina product having a crystal size in the range 5-12 microns produced by calcining at an elevated temperature from 1000 DEG  C. up to the melting point of alumina in the presence of chlorine-containing material and fluorine-containing material, said material being employed in the range 0.5 to 10% chlorine or chlorine content and 0.01 to 5% fluorine or fluorine content by weight based on the resulting treated alumina and being capable of yielding with the soda-contaminant at the calcining temperature a volatile sodium compound, the calcining operation being carried out for a time sufficiently long to reduce the soda-content by at least about 30%, and recovering the crystalline alumina product. Specified chlorine-containing materials include gaseous chlorine itself, ammonium chloride, hydrogen chloride, aluminium chloride, phosgene, carbon tetrachloride, chlorinated C1-12 hydrocarbons and organic chlorine containing compounds capable of decomposition to chlorine-containing forms which will react with the soda contaminant to form a volatile sodium compound. Specified fluorine-containing materials include hydrogen fluoride, aluminium fluoride, ammonium fluoride, elemental fluorine, carbon tetrafluoride and fluorinated C1-12 hydrocarbons and organic fluorine-containing compounds which will decompose at the calcining temperature to yield forms capable of reacting with the soda-contaminant.  The alumina may be supplied dry or as a slurry to the kiln.  If desired, reaction may take place in a fluidized bed of alumina particles.  The fluorine-containing material and/or chlorine-containing material may be introduced at either end of the kiln, depending upon the physical state of the alumina, and on the volatility of and the physical state of the chlorine-containing and fluorine-containing materials.  Reference has been directed by the Comptroller to Specification 864,009.
Patent GB-1367196-A (GB)
Title: Prestamped seating device
IPC: A47C5/12
Filed: 1972-05-09
Abstract: 1367196 Chairs ALBAPLAST SpA 9 May 1972 [15 Sept 1971] 21575/72 Heading A4H [Also in Division F2] A stamped plastics chair comprises a seat 1 provided on its underside with frusto-conical sleeves 3 each including a lower threaded region 10, and legs 5 each including an upper frustoconical extremity 6 and a lower threaded region 7, a ledge 8 being provided at the lower end of region 7. Region 7 is frusto-conical, as shown, or cylindrical.
Patent GB-323220-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1928-07-25
Abstract: 323,220. Wade, H., (Compagnie Continentale pour la Fabrication dcs Compteurs et Autres Appareils Soc. Anon). July 25, 1928. Gas meters.-In a dry gas meter each part 4 of the slide valves 1 is in communication with one side of a bellows 7, the gas passing over a plate 8 extending the whole width of the meter, and each port 5 is in communication with the other side of a bellows by a short conduit opening in the plate 8. The exhaust ports 2 communicate directly with a straight discharge conduit 3 extending the whole width of the meter to the discharge pipe 6, the lower part of the conduit beirg free from obstruction.
Patent GB-1392369-A (GB)
Title: Copings
IPC: E04D3/40
Filed: 1972-05-09
Abstract: 1392369 Copings F C ADLAM 7 May 1973 [9 May 1972] 21656/72 Heading E1B A coping comprises cambered clips 10 a ohannel section coping member 11 having one inturned flange 31 which bears against an inturned flange 20 on the clips and one inturned flange 32 which stops short of the end of the coping member and aligns with a flange 21 on the opposite limb of the clip and is secured thereto by a slide on clip 12. The clip comprises a central top hat section member 15 to which end members 16 and 17 are rivetted. The clip is secured to a wall by screws 13 through holes 25 or by joggled clips which allow for relative expansion. A rubber sealing strip 23 is adhered to the clip.
Patent GB-1409467-A (GB)
Title: Lightweight aggregates
IPC: C04B20/06
Filed: 1973-05-07
Abstract: 1409467 Light weight aggregate M KRATOCHVIL 7 May 1973 [8 May 1972] 21672/73 Heading C1A Coarse grained muds or soil are converted to light weight aggregates by mixing with aluminium powder and adding CaOH or NaOH, drying and firing the product in a kiln. After mixing but prior to drying addition materials namely sawdust, shredded grass or straw may be added, and the drying may be effected by spraying the mixture through heated air followed by crushing to ¢-1¢ inches particle size prior to firing.
Patent GB-575956-A (GB)
Title: Broom head protector
IPC: A46B3/00
Filed: 1943-12-28
Abstract: 575,956. Brooms. BOWMAN, W.G. Dec. 28, 1943, No. 21718. [Class 19] Broom heads 3 are protected by metal caps 1 fixed by screws 2 and easily removable and replaceable to permit cutting off the ends of the broom head as they become worn.
Patent GB-958064-A (GB)
Title: Method of purifying sugar esters
IPC: C07H13/06
Filed: 1961-06-15
Abstract: A sugar ester is purified by removing the organic solvent used in its production and adding preferably 3 to 20 times the quantity of water to the residue, heating the mixture to melt the ester (30 DEG  to 60 DEG C.) and transforming the ester and its aqueous solution into a homogeneous emulsion by vigorous agitation, and precipitating the sugar ester by the application of heat and by the addition of salts and/or acids to bring the pH to between 4 and 7, the ester then being separated from the reaction mixture.  The term sugar ester means esters of aliphatic carboxylic acids of 6 to 30 carbon atoms with mono, di or oligosaccharides or their derivatives. Suitable sugars, acids and esters are specified.  The melting point of the ester may be reduced by adding fatty ester impurities.  Preferably a volatile acid such as sulphuric or acetic acid or carbon dioxide is employed to give a r H of 6 to 7.  Acid or neutral salts may be added to a concentration of 0.25-2.5 mols./litre to precipitate the ester. Separation may be effected by filtration, centrifugation or decantation and the esters are dried, or first taken up in an organic solvent and then recovered, after drying the solution, by distilling off the solvent.
Patent GB-657322-A (GB)
Title: Combined heating element and thermomotive device
IPC: A47J37/08
Filed: 1948-08-17
Abstract: 657,322. Temperature-responsive actuating-elements. DEHN, S. G. (Sunbeam Corporation). Aug. 17, 1948, No. 21722. Drawings to Specification. [Class 64(ii)] [Also in Group VI] In an automatic electric toaster (see Group VI) the thermomotive device described in Specifications 639,393 and 657,321, is arranged to act also as a heater for the bread. Two thin reflecting plates are supported by diagonal wires between the half turns of the electrically heated wire.
Patent GB-686481-A (GB)
Title: Improvements in or relating to the preparation of vitamin b
Inventor: ELLIS BERNARD
IPC: A61K31/00
Filed: 1950-09-04
Abstract: Vitamin B12 is obtained from vitamin B12b by adding a soluble cyanide in excess of one molar proportion to a solution of vitamin B12b and decomposing the resulting vitamin B12b/cyanide complex by acidification.  As the soluble cyanide there may be used an alkali metal cyanide or hydrogen cyanide and acidification may be effected with dilute mineral acid.  The solution of vitamin B12b after addition of hydrogen cyanide is subjected to the action of heat, carbon dioxide or nitrogen.