baber/WOPTO huggingface dataset:
Patent GB-756435-A (GB)
Title: Improvements in apparatus for indicating or/and controlling combustion efficiency and an improved method of operation in an electrical generating system
Inventor: FAVELL FREDERICK
IPC: G05D11/13
Filed: 1953-02-23
Abstract: 756,435. Electric measuring systems. BAILEY METERS & CONTROLS, Ltd. Feb. 22, 1954 [Feb. 23, 1953], No. 5069/53. Class 40(1) [Also in Group XXXV] The ratio of the steam flow to a turboelectric generator and the airflow to the furnace of a steam generator supplying the turbine is measured. An instrument 2 produces between conductors 3, 4 a direct voltage dependent on the electrical power output of a turbo-alternator 1. This voltage is applied through an amplifier 14 to control a two-phase motor 15 moving, through a cam 19 and a lever 21 pivoted at 22, a lever 46 to a position approximately representative of steam flow from a single steam generator supplying the turbine. Motor 15 operates a potentiometer 11 associated with a D.C. source 12 to provide follow-up. To make the position of lever 46 correspond more closely to the steam flow a bellows 57 responsive to turbine vacuum controls the length of an arm 50 of lever 21. Resistances 6-8 and 6<SP>1</SP>-8<SP>1</SP> controlled by switches 5 and 5<SP>1</SP> are introduced manually or automatically to compensate for the steam consumption of auxiliary plant. An instrument 23 operating a core 24 of an inductive pick-up produces an alternating voltage dependent on air flow to the furnace of the steam generator. This voltage is applied to an amplifier 36 to control a two-phase motor 39 moving, through a cam 42 and a lever 43 pivoted at 44, a lever 47 to a position corresponding to the air flow. Motor 39 operates a potentiometer 41 to provide follow-up. Levers 46 and 47 combine to operate a pneumatic valve 49 so as to produce an air pressure representative of the ratio of steam flow to furnace air flow. Instruments associated with lever 46. lever 43 and the air pressure controlled by valve 49 indicate and/or record steam flow, air flow or their ratio. Adjustment of a potentiometer associated with potentiometer 11 instead of adjustment of lever 50 by bellows 57 responsive to turbine vacuum is referred to. Specifications 425,507 [Group XII] and 461,389 [Group XXIX] are referred to.
Patent GB-558113-A (GB)
Title: Improvements in and relating to water heating systems
IPC: F24D3/02
Filed: 1942-04-17
Abstract: 558,113. Water heating systems. HADEN & SONS, Ltd., G. N., and JAMIESON, H. C. April 17, 1942, No. 5134. [Classes 64 (i) and 64 (ii)] An upfeed water-circulating system of the two pipe type including boiler 1, flow and return pipes 2, 3, radiators 4, and pump 5, which may be in either pipe, is supplied with water from a tank 6, and is provided with a vent pipe 8 connected either to the boiler or to pipe 3 and discharging over the tank 6. A branch 9 from the vent pipe is connected below the water level in tank 6 and is provided with boilercontrolled thermostatic valve 10 which opens at a temperature slightly below boiling. Water is then discharged, and also flows into the boiler from tank 6, but at a rate insufficient to prevent the water in the boiler from reaching boiling-point. This may occur if the pump 5 fails, or if a considerable part of the heating system is shut down. Water and steam may then be discharged from the vent-pipe into tank 6, whereby heat is safely taken from the boiler fire and steam generated does not force feed water towards the expansion tank. The pipe 9 may be extended downwards.
Patent GB-270837-A (GB)
Title: Improvements in advertising signs and the like
IPC: G09F19/06
Filed: 1926-02-24
Abstract: 270,837. Bathe, S. H. Feb. 24, 1926. Optical-projection apparatus.-In optical-projection apparatus for the gradual display of letters, words, or designs, one or more shutters c are moved step-by-step to reveal the words &c., on the transparency a<2>. The shutters carry racks d which are operated by mutilated pinions e mounted on a shaft f journaled on a plate b. Open spaces are provided at the ends of the racks to enable the pinions e to turn freely at each end of the travel shutters, and the following shutter is brought into engagement with its pinion by a pin j which abuts against a pin i on the first moved shutter. Specification 181,804, [Class 3 (i), Advertising and displaying apparatus, Moving &c.], is referred to.
Patent GB-229106-A (GB)
Title: An improved jig saw machine
IPC: B23D49/00
Filed: 1924-03-01
Abstract: 229,106. Grose, F. E. March 1, 1924. Reciprocating-saw machines.-In a machine for cutting metal or other hard materials the saw blade 26 is mounted between two blocks 17, 24 sliding in vertical guides and connected by a chain or flexible band 29 which runs on pulleys 31 and in which are interposed a spring 34 and a tightener 37. The lower block 17 is reciprocated by means of a disc crank 14 and adjustable connecting-rod 16, and has attached to it an apron 43 for excluding dust arranged over a roller 46. The saw blade is laterally adjustable on the upper block 24 to alter the amount of overhang, being held by a spring clip 61 on a plate 56 which can slide on a feather 53. The saw runs in an aperture in a hand plate 28 in the table, whereon the work is held by means of a plate 66 attached to spring bolts 67 which are clamped by screws 74. Fences 7, 8 are mounted on the table, the latter fence having an adjustable stop 78 for use in edge-trimming.
Patent GB-886854-A (GB)
Title: Improvements in and relating to binding compositions
Inventor: SHEPPARD RONALD FREDERICK
IPC: B22C1/22
Filed: 1959-02-17
Abstract: A core binder consists of a dry mixture of a heat hardenable melamine resin, starch and a water soluble cellulose ether such as sodium carboxy methyl cellulose.  Formaldehyde or trioxane may also be present and a preferred composition is in parts by weight 1 of resin, 4-6 of starch and 4-6 of cellulose ether.  The binder is mixed with sand and water and moulded and baked to form a casting core.ALSO:A cone binder consists of a dry mixture of a heat hardenable melamine resin, starch and a water soluble cellulose ether such as sodium carboxy methyl cellulose.  Formaldehyde or a formaldehyde liberating substance such as trioxane may also be present and the preferred composition in parts by weight is 1 part resin, 4-6 parts starch and 4-6 parts cellulose ether.  A casting cone is formed by mixing 0,5-1,5 parts by weight of the binder with 94-97 parts sand and the rest water to make up 100 parts, moulding and baking at 160 DEG C.-180 DEG C.
Patent GB-652647-A (GB)
Title: Improvements in or relating to apparatus for washing out the ammonia, cyanogen, naphthalene or other impurities from combustible gases or for the drying or cooling of combustible gases
IPC: B01D47/06
Filed: 1948-02-24
Abstract: 652,647. Treating gases with liquids. KEMPKERS, F. H. Feb. 24, 1948, No. 5504. [Class 55(ii)] . In a gas washing apparatus of the kind wherein the gas is passed to and fro around superimposed baffles and is sprayed transversely whilst between the baffles with a wash liquid, all the baffles extend from one of the end walls of the washer and increase in length from the lowest to the uppermost, and cross walls are provided between the free end of each baffle and the floor of the washer, the gas flowing through large passages cut in each baffle either at the end near said end wall or at the " free'' end. In the form shown, a cylindrical washer 1 has an axial gas inlet 3 and outlet 4. Extending from the inlet end are two baffles 5 and 6, having end portions 7 and 9 extending down to the floor of the washer. Gas from the inlet 3 passes through an aperture 8 in baffle 7, reverses direction at 12 and passes between baffles 5 and 6 and is again reversed to pass over baffle 6 to the outlet 4. Water or other liquid sprayed from pipes 14 and 17 removes impurities from, or cools or dries the gas and collects in sumps formed by the walls 7 and 9 in the washer base, the position of the walls determining that the liquid volume of the sumps decreases from the gas inlet to the outlet. The liquid level in the sumps is fixed by overflow pipes 21 and a pump circulates the liquid from each sump to the sprays supplying the next, so giving a counter-current treatment of the gas.
Patent GB-718534-A (GB)
Title: Improvements in and relating to high temperature expansion joints
IPC: F16L27/12
Filed: 1952-03-03
Abstract: In a pipe connection to a steam turbine casing the pipe is made of an alloy steel containing 18 per cent. chromium, 8 per cent. nickel, and 1 per cent. or 2 per cent. niobium whilst the sealing rings contain 19 per cent. chromium, 1 per cent. nickel, 3 per cent. tungsten, and 1 per cent. niobium.
Patent GB-543242-A (GB)
Title: Improvements in devices for fastening ends of bowden cables and for analogous purposes
IPC: F16C1/14
Filed: 1941-04-29
Abstract: 543,242. Bowden wire mechanism; wire &c. couplings &c. MARTIN, J., and MARTINBAKER AIRCRAFT CO.; Ltd. April 29, 1941, No. 5546. Drawings to Specification. [Class 109] [Also in Group XXVIII] A fastening device for the end of a Bowden wire, cable &c. adapted to be placed under tension comprises a bolt with an aperture or recess passing through its head to receive the wire &c. and an outer member forming a handle, lever &c. to be anchored to the wire &c. The outer member receives the bolt and accommodates the bolt head while the wire &c. lies between opposed surfaces of the bolt head and the outer member and is gripped when the bolt is tightened on the outer member.
Patent GB-786897-A (GB)
Title: Purification of terephthalic acid
Inventor: O'NEILL WILLIAM ALEXANDER
Filed: 1955-02-25
Abstract: Terephthalic acid is purified by successively treating an aqueous solution of a salt of terephthalic acid with activated carbon, a reducing agent having no reducing action on the terephthalic acid, and, if desired, with further activated carbon.  The treatment is conducted by dissolving terephthalic acid in aqueous ammonia, treating the solution with activated carbon and then with sodium hyposulphite, crystallizing the ammonium terephthalate, dissolving the latter in water and treating again with activated carbon. Terephthalic acid is isolated by acidifying the ammonium salt solution.  The ammonium terephthalate motherliquors are used for further purifications after adding more aqueous ammonia.  The purification of terephthalic acid by (a) solution in aqueous ammonia and precipitation with acid, and (b) solution in aqueous ammonia, treatment with active carbon, crystallization of the ammonium salt, solution of the latter in water and precipitation with acid, is described for purposes of comparison.  Specification 695,170 is referred to.
Patent GB-326642-A (GB)
Title: Improvements in and relating to the manufacture of ammonium chloride crystals
IPC: C05C3/00
Filed: 1929-02-23
Abstract: 326,642. Imperial Chemical Industries, Ltd., and Bunn, C. W. Feb. 23, 1929. Ammonium chloride crystals are obtained by crystallization of a solution of the salt to which has been added a small proportion of a substance which can form mixed crystals or a double salt therewith, such as chloride of manganese, iron, cobalt, nickel, or copper. Continuous agitation during crystallization gives uniform, small substantially spherical crystals.
Patent GB-396321-A (GB)
Title: Improvements in thermionic valve amplifiers
IPC: H03F1/08
Filed: 1933-03-01
Abstract: 396,321. Valve amplifying circuits. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. March 1, 1933, No. 6186. Convention date, March 5, 1932. [Class 40 (v).] In a thermionic valve amplifier comprising valves 1 .. 4 connected in cascade, the plate potentials of valves 1, 3 are supplied from a source 10 and the plate potentials of valves 2, 4 are supplied from a second source 9. This prevents back coupling over the source of anode potential.
Patent GB-1274784-A (GB)
Title: Recovery of aromatic hydrocarbons
IPC: C10G7/08
Filed: 1970-02-10
Abstract: 1,274,784. Extractive distillation; catalytic hydrogenation. TORAY INDUSTRIES Inc. 10 Feb., 1970 [17 Feb., 1969; 26 Aug., 1969], No. 6208/70. Heading C5E. Styrene and xylene are separated from hydrocarbon fractions by subjecting the fractions to extractive-distillation with a dialkylacetamide, dialkylsulphoxide, an alkylene carbonate, a lactone, phenol, m-cresol, aniline or an alkylaniline as solvent to obtain xylene in the distillate and styrene as a residue. The hydrocarbon fraction can be an oil produced in the thermal cracking of naphtha to ethylene and containing hydrocarbons having 5 to 9 carbon atoms. This oil can be distilled at atmospheric pressure in one or two separate columns to remove materials having up to 7 or more than 9 carbon atoms and the remaining material is passed to the extractive distillation. 10-500 p.p.m. of hydroquinone, t-butylcatechol, phenothiazine or sulphur can be included in the extractive distillation to inhibit polymerization of styrene. The extractive distillation can be carried out at below 120 C. and below 200 mm. Hg absolute with a reflux ratio between 10 and 30 in one column or in two columns. When two columns are used the extract solvent is fed to the tops of each column, the feed is passed to the middle of the first column and the bottoms from the first column is fed to the middle of the second column. The top fraction from the extractive distillation can be mixed with the up to C 7  material distilled from the feed and the mixture hydrogenated at 10-200 kg./sq. cm. abs. and 100- 400 C. using a catalyst of Co, Mo and/or W to produce ethylbenzene and o-, m- and p-xylenes.
Patent GB-725840-A (GB)
Title: A shirt-collar supporting appliance
IPC: B65D85/18
Filed: 1953-03-09
Abstract: 725,840. Packaging collars. DEPARDAY, A. F. A. March 9, 1953 [March 11, 1952], No. 6398/53. Class 94 (1). A support for a shirt-collar comprises in one form, Fig. 1, two curved parts 1, 2 adapted to be positioned beneath the wings of the collar and hinged together adjacent the collar stud or button on an axis 6 parallel to the axis of the collar band. In a second form, Figs. 4 and 5, the hinge pin 6 carries slotted forks 11 engaged by a transverse pin 14 passing through a link 12 which carries a perpendicular pin 16 forming a pivot for two spring bands 18, 19 adapted to be positioned within the collar band. The band 19 is formed with notches 20 cooperating with a projection 21 on the band 18, whereby the bands may be adjusted to stretch the collar band.
Patent GB-212924-A (GB)
IPC: F02B71/00
Filed: 1924-03-12
Abstract: 212,924. Junkers, H. March 12, 1923, [Convention date]. Toothed gearing.-In engines having oppositely moving pistons 2, 3 whose return movement is effected by pneumatic pressure on pistons 4, 5 rigidly connected to the power pistons simultaneous movement of the two sets of pistons is effected through gearing, the parts of which move parallel to the piston movement. As shown, two racks 9, 11 are connected to each piston set, the racks working over common pinions 12; or the racks may work on pinions geared together. Instead of gearing with one pinion only on each side of the engine, the racks may gear with two or three. To balance the effect on these pinions 17, 18, Fig. 8, they may be interconnected through a lever 22; for three pinions a modified form of this balancing means is provided. Specification 167,746 is referred to.
Patent GB-761585-A (GB)
Title: Improvements in or relating to pneumatic linear dimension gauges
IPC: G01B13/12
Filed: 1954-03-05
Abstract: 761,585. Pneumatic gauges. MERCER, Ltd., T., and GREEN, G. W. A. March 4, 1955 [March 5, 1954], No. 6507/54. Class 106 (2). A pneumatic gauge of the kind that operates by the flow of compressed air through orifices in a gauging head has a gauging head adapted to be inserted into a hole Z in the work P and has at least two pneumatic orifices A, C affected by the clearance between the head and the work and arranged so that an increase in the clearance on one side of the hole tends to cause movement of an indicator in one sense while an increase in the clearance on the other side has a compensating tendency to cause movement of the indicator in the opposite sense, so that the indication is affected only by the position of the hole relatively to the gauging head, and not by its size. The effective area of the orifice C is decreased by an increase in the clearance, the work engaging feeler 5 having a ball valve 4 and being outwardly urged by spring or air pressure. The orifice A may consist either merely of a jet 10, as shown, or of a feeler (Fig. 3, not shown), which controls an internal jet, similar to the feeler 5, such that the effective area of the orifice A is increased by an increase in clearance. Compressed air is supplied by a duct 7 and escapes through orifices 8. The distance between the centres of two holes may be measured by a gauge having two heads as described above, each having two diametrically-opposed orifices in the line of measurement, the two outer orifices acting on the indicator in one direction and the inner orifices acting in the other. Embodiments are described for measuring the distance of the centre of a hole and a projection from an edge of a workpiece, and for the distance between the centres of intersecting holes. Specification 674,182 is referred to.
Patent GB-487442-A (GB)
Title: Improvements relating to casement stays
IPC: E05C17/18
Filed: 1937-03-05
Abstract: 487,442. Casement stays. CARVER, J. D. March 5, 1937, No. 6546. [Class 65 (i)] In a stay of the kind which co-operates with a pin &c., on the window sill by means of a series of holes in the stay, the stay 1 during its engagement with the pin 10 is given a turning movement about its longitudinal axis to cause the parts of the pivot joint 4, 5 to bind together and prevent rattle. The holes 9 in the stay may be relatively inclined to the pin 10 to give the turning movement. The stay may be held down on the pin by a spring plunger 14 in a guide 7. In the form shown in Figs. 9 and 10, the main portion 1 of the stay is flat, the holes 11 are normal to the plane of the stay, and the pivotal end 16 is slightly twisted out of the plane of 1, so that when the hole 11 engages the pin 10, the pivotal hole 4 assumes the position shown in Fig. 10, and binds on the pivot 5. The hole 4 may be of various shapes.
Patent GB-503012-A (GB)
Title: Improvements in or relating to optical prisms
IPC: G02B5/04
Filed: 1937-08-26
Abstract: 503,012. Prisms. BAUER, K., and DAESCHNER, A. Aug. 26, 1937, No. 6632 /39. Divided out of and addition to 501,409 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 28, 1938. [Class -97 (i)] A prism is provided with a number of internal reflecting surfaces arranged in one or more pairs of rows, the reflecting surfaces in each row being parallel to one another, symmetrically arranged and oppositely inclined with respect to those of the other row of the pair, and the angles between corresponding surfaces in a pair of rows being different from 90‹, the reflecting surfaces acting to deflect incident rays out of their original direction into a direction parallel thereto at least once, and finally back into their original direction, so that the rays have a lengthened path in the prism without ultimate displacement or change of direction. In the form shown the angle between the surfaces of the two rows is 60‹ ; the path of a ray through the prism is shown by the arrows.
Patent GB-114510-A (GB)
Title: Improvements in Feeding Mechanism for Sheets and the like.
Inventor: BUTTERFIELD CHARLES
IPC: B41F3/40
Filed: 1917-05-10
Abstract: 114,510. Butterfield, C. May 10, 1917. Sheet-registering devices; pusher feeds for single sheets.-Pushers for moving sheets up to front stops, or for registering them against side gauges, are provided with yielding spring fingers or sheet-engaging parts which yield under the pressure of the sheet while the slide carrying them moves further, and means is provided for varying the resistance of the yielding parts. As shown in Fig. 1, the sheet-engaging pusher 1 moving in a slot 10 in the table is on a lever 2 pivoted at 3 on a carrier 7 adjustably fixed on a cam operated rod 8 and guided by a rod 9. A spring 4 holds the pusher 1 in its forward position against a stop 5, and may be moved into anv one of the notches 6 to vary the resistance in accordance with the kind of sheet being fed. Fig. 3 shows a pusher movable in a groove in the table and adapted for side registering. It comprises a finger 25 pivoted at 26 on the reciprocating carrier 22, and held in its forward position against a stop on the arms 29 by a spring 31 in a holder 32 adjustable in the slot 33 in the arm 29 to vary the resistance. As shown in Fig. 5, the pusher 11 is on a spring finger 12 fixed to the carrier 13, and the resistance is varied by an adjustable block 15. In the modification shown in Fig. 6, the pusher 16 slides on the reciprocating carrier 17 and is held forward against the stop 18 by a spring 19 bearing against an adjustable block 20. In a modification suitable for feed tables which cannot be grooved or slotted, the pusher-carrier is attached to a transverse bar carried by reciprocating bars at the sides of the table, and the pusher has a spring and means for varying its pressure of the kind shown in Fig. 6.
Patent GB-114511-A (GB)
Title: Improvements in Means for Protecting Ships from Torpedoes and for Obtaining Increased Buoyancy and Cargo Capacity.
Inventor: ELSMORE FREDERICK RICHARD
IPC: B63G9/00
Filed: 1917-05-10
Abstract: 114,511. Elsmore, F. R. May 10, 1917. Protecting; air casings and water-tight casings, non-structural.-A wrought iron or steel ship or barge is enclosed in a reinforced concrete cellular casing or structure which adds to the buoyancy and cargo capacity and serves as a protection against torpedoes, and can be sawn away when it is no longer needed. The casing comprises inner and outer vertical walls b, u connected by watertight vertical partitions c, and horizontal partitions d which need not be watertight. The concrete is put in generally by gravity process from a high-level platform c. A concrete mixer is shown at f. The centering consists of stretched canvas and their wooden forms which are left in, or by dissolvable blocks which are subsequently washed out by water jets and drained away through holes, left in the horizontal partitions d.
Patent GB-1382166-A (GB)
Title: Tape playing apparatus
IPC: G11B25/06
Filed: 1972-02-12
Abstract: 1382166 Tape-cartridge players D M Mc- DONALD 11 May 1973 [12 Feb 1972] 6651/72 Heading G5R A latch is power-driven between a position in which it engages a cartridge and biases it towards a tape-drive capstan and a position in which it is free of engagement with the cartridge. As shown, the latch 28 is actuated and released by the engagement and disengagement of a cam 33 with a lug 32, which are effected by successive 180-degree rotations of a gear-wheel 40 caused by successive 360-degree rotations of a pinion 38 secured to a gear-wheel 37 carrying a pawl 23 which is moved into engagement with a dog 41 on the rotating capstan shaft 16 to initiate such a 360-degree rotation of the gear-wheel 37, driven by a pinion 35 on the capstan shaft 16, at the beginning and end of the playback of a cartridge.
Patent GB-1018137-A (GB)
Title: Process for the fixation of polyester fibre material
Inventor: WUNSCH ERNST
IPC: D01F6/62
Filed: 1964-02-18
Abstract: 1,018,137. Treating polyester filaments. INSTITUT FUR TEXTILTECHNOLOGIE DER CHEMIEFASERN. Feb. 18, 1964, No. 6772/64. Heading B5B. Polyester fibres or articles made therefrom are treated for up to one minute with an aliphatic chlorinated hydrocarbon at a temperature below 40‹ C. The fibres are thereby fixed and stabilized against subsequent action of high temperatures and/or swelling agents. Specified chlorinated hydrocarbons, which have a swelling action on the fibres are dichloromethane, trichloromethane and 1,2-dichloroethane. The process may be continuous, and finishing agents may be applied in admixture with the hydrocarbon. In an example, fibres are introduced for a few seconds in a bath of liquid dichloromethane at 20‹ C., and dried at room temperature.