baber/WOPTO huggingface dataset:
Patent GB-774302-A (GB)
Title: Improvements in or relating to screen structures of cathode ray tubes for colour televison receivers
IPC: H01J29/26
Filed: 1954-06-25
Abstract: 774,302. Colour television tubes. PHILCO CORPORATION. June 25, 1954 [June 26, 1953], No. 18696/54. Addition to 753,551. Drawings to Specification. Class 39(1). . In a tri-colour receiver in which the fluorescent areas of different colours have different light emission efficiences a material having a secondary emission ratio approximately the same as those of the fluorescent materials is added to the fluorescent material having the greatest light emission efficiency so as to make the light emissivities of the fluorescent materials more nearly equal. The added material may be unactuated willemite or silicon dioxide. For red, green and blue strips of zinc phosphate, zinc orthosilicate and calcium magnesium silicate respectively the light emissivity of the green strips is about double that of the red and blue strips so that if the strips are of equal areas the green strips have approximately equal proportions of phosphor and added material. The strips may be of different areas and the added material may if desired have appreciable fluorescence provided that its light emission efficiency is lower than that of any of the phosphors. The blue and red phosphors mentioned have approximately equal light emissivities, but unequalities arising with different blue and red phosphors may be compensated by adding non-fluorescent material to one of them. The added materials in all cases are mixed with the phosphors and do not react with them, and are preferably deposited by the same methods as the phosphor so that they can be mixed therewith before deportion. The added material may be uniformly or non- uniformly distributed throughout the volume of the strip. The phosphor strips may be deposited by silk screening, settling or spraying, preferably the latter using polyvinyl alcohol and ammonium dichromate as a vehicle. Between applications of differently coloured phosphors the previously deposited phosphor layer is exposed to light through slits in an opaque mask to fix the desired portions of the phosphor, the remaining portions being washed off. This procedure is repeated for each set of strips with different masks or by changing the alignment of a single mask. A layer of stannic oxide may be deposited between the phosphor strips and the screen support. Prior art devices in which the light emissivities of the phosphors are equalised by varying the relative gains in the three input channels, or by making the phosphor areas of low light emission efficiency larger or more numerous than the areas of high light emission efficiency, are referred to. Specifications 753,441 [Group XL(b)], 753,442 and 753,452 are referred to.
Patent GB-388983-A (GB)
Title: Furnace wall construction
IPC: F27D1/00
Filed: 1932-07-01
Abstract: 388,983. Furnace walls. DETRICK CO., M. H., 140, South Dearborn Street, Chicago, U.S.A. July 1, 1932, No. 18702. Convention date, Sept. 3, 1931. [Classes 51 (i) and 51 (ii).] In a furnace wall comprising an external metallic framework 10 which supports in spaced relation thereto a wall or lining of refractory blocks 16, each of the blocks is retained against displacement inwardly from the wall but can be removed outwardly independently of the other blocks. In the construction shown each block is supported on a bracket 15 hooked on to a cross member 11 of the framework, the bracket having an horizontal portion 15a terminating in a flange 15c and an upwardly extending lug 15b. The lower face of the block is shaped to fit over the lug 15b, and the upper face has an upward extension 16c which takes behind the flange 15c. The blocks are backed by a thin coating of plastic material 17 and a layer 18 of heatinsulating material. After the backing has been removed any block can be taken out by tilting it as indicated in broken lines. In a modification the horizontal portion of the bracket has an upwardly bent end which engages in a recess in the lower or rear face of the block. With this construction the extension 16c contacts with the depending portion of the superjacent block. In a further modification, Fig. 5, the blocks are supported by transverse members 11<1>, which are bolted to the uprights 10, and inward movement of a block is prevented by the shape of the member 11<1> and by a locking member 20, which engages the member 11<1> and a recess in the upper face of the block. The block is freed by sliding the locking member over an adjacent block. The flange 20a of the locking member may extend upwards sufficiently to engage a recess in the lower face of the superjacent block. Expansion spaces left between the blocks are filled with a compressible refractory material.
Patent GB-298289-A (GB)
Title: Improvements in or relating to galvanic batteries
IPC: H01M6/04
Filed: 1927-07-14
Abstract: 298,289. Levy, L. A., and Almeida Accumulators, Ltd. July 14,1927. Electrodes; electrolytes; gases supplied.-The positive electrode of a primary or secondary cell consists wholly or partly of activated carbon, the electrolyte consisting of a solution of one or more halides. The activated carbon may be saturated with chlorine and bromine. A primary cell may comprise an outer zinc vessel containing an electrolyte of zinc chloride or zinc bromide or a mixture of both. Within the zinc vessel is a porous jar containing a carbon rod surrounded with granules of activated carbon saturated with bromine and chlorine. A secondary battery is similarly constituted but the electrolyte is acidified with hydrochloric acid. The Provisional Specification states that the electrolyte may be neutral and may be of the composition described in Specification 268,047. Silver or other metals in spongy form may also be associated with the activated carbon.
Patent GB-1212314-A (GB)
Title: Scrap cutting machine
IPC: B23D31/00
Filed: 1969-04-11
Abstract: 1,212,314. Metal feeds; consolidating scrap. LINDEMANN MASCHINENFABRIK G.m.b.H. 11 April, 1969 [24 April, 1968], No. 18806/69. Headings B3H and B3W. Scrap compressed into a bale in a bed 9 by a side pusher 11 is fed to a shear including a blade reciprocated by ram 3 by a plunger 22 adjustable in width for feeding scrap bales or different widths. As shown, Fig. 8, either or both of two plungers 22, 30 driven by respective piston and cylinder devices 25, 31 may be used. To form a bale of width v, which will be fed by the plunger 30 alone, a spacer 32 of the same size as the plunger 22 is inserted in the bed 9 during the compression stroke of the side pusher 10. In another embodiment (Fig. 3, not shown), a detachable plunger strip (23) is screwed to the main plunger and a single piston and cylinder device drives the combined plunger unit. The side pusher 10 is reciprocated by an hydraulic ram 11, the stroke of which is controlled by a lever system 33-35, with or without a detachable stop 36, to vary the width of the bale formed. A cover 15 hinged to the wall 14 opposite the pusher 10 is pivoted by means of an hydraulic ram 16.
Patent GB-613639-A (GB)
Title: Improvements relating to pantograph engraving machines
IPC: B44B3/00
Filed: 1946-06-24
Abstract: 613,639. Engraving-machines. MOULTON, Ltd., G., and VARLEY, G. P. June 24, 1946, No. 18824. [Class 100(ii)] In a pantograph machine, e.g. for engraving rollers for printing textiles, of the kind wherein a stylus in tracing a design causes proportional relative movement of the tools and roller, a tool-carrying lever is provided comprising a pair of arms 5, 10 carrying tools 11 and independently pivoted at 6, 9 to a common bracket 1 so that the tools are coplanar and the arms move in unison to and from a roller 7. The upper tool 11 is detachably mounted in a slide 16 adjustable along a curved V-shaped groove 17 in the inner face of the arm 5 and held in position by a bolt 13. The lower tool 11 is secured by a bolt 22 passed through one of a number of spaced holes 21. The pressure of the upper tool is adjustable by a counterweight 23 on an extension 24 of the arm 5, and the lower tool is pressed against the underside of the cylinder by a weighted end 29 of a bell crank 26 carrying a screw 25 engaging the arm 10, the pressure being adjustable by a counterweight 30. The tools are moved from the cylinder by a treadle 32 engaging an abutment 33 on the lever 26 to release the arm 10 and pulling on the arm 24 by a link 34. Pinpoint bearings are employed to minimise friction.
Patent GB-1031785-A (GB)
Title: Improvements in or relating to detergent compositions in bar form
Inventor: WARD NORMAN ERNEST
IPC: C11D1/88
Filed: 1963-05-13
Abstract: Detergent tablets comprise (a) a mixture of preformed alkali earth metal, magnesium, zinc or aluminium salt of a fatty acylaminoalkane sulphonic acid of formula R.CO.NR1CnH2nSO3H where RCO is a C10- 18 fatty acyl group, R1 is hydrogen or methyl and n is 1, 2 or 3, and a preformed soluble soap, (b) 2-15% by weight of an alkali metal salt of a C12- 18 alpha-sulpho-monocarboxylic acid and (c) 3-15% of a C10- 18 saturated fatty acid.  In the examples TiO2, NaCl and CaCl2 are sometimes also present.
Patent GB-963234-A (GB)
Title: Improvements in and relating to furnaces
IPC: F23M11/02
Filed: 1962-05-16
Abstract: 963,234. Furnace doors. FOSTER WHEELER Ltd. (Foster Wheeler Corporation). May 16, 1962, No. 18863/62. Heading F4B. [Also in Division F2] In a furnace having an access door 16 closing a passage 10, Fig. 2, leading into the furnace and means for injecting a fluid into the passage so as to prevent the egress of gas when the door is opened, the pressure in the passage is used to indicate when the door can be safely opened, or to prevent the unsafe opening of the door. A conduit 40 leads from within the passage 10 to the outside of the furnace, where it may be connected to a manometer, Fig. 4, not shown, to a pressure-sensitive switch, or may terminate in an open end. The passage end of the conduit 40 is so located that when air is blown from the manifold 36 surrounding the door frame into the passage, and it is safe to open the door, as hot air is blown from its open end. If the air injection system is not working properly, a flow of hot air from the pipe 40 affords an indication, or a visual indication may be provided by a manometer. The outer end of the conduit may be connected so that any excess of pressure within the passage opens a pressure sensitive switch to de-energize a solenoid 64, Fig. 6, so that a spring-loaded plunger 66 enters a hole in a yoke 20 to prevent the yoke being released to allow the door to be opened.
Patent GB-335216-A (GB)
Title: Improvements in catalysts for destructive hydrogenation
Filed: 1929-06-19
Abstract: 335,216. Strong, H. W., and Imperial Chemical Industries, Ltd. June 19, 1929. Divided on 335,215. Catalytic agents, preparation of. - In the destructive hydrogenation of oils &c. in the vapour phase, a catalyst is employed consisting of a coating of an alloy or metal, such as tin, or an alloy or metal base, such as iron or steel, in the massive form, e.g. in the form of plates. The catalyst may be activated by treatment with dilute solutions of acid or alkali, e.g. 5 to 10 per cent of acid and 10 per cent of alkali : 5 per cent of urea may be added to the acid solution to form a layer of stannous hydroxide which is reduced during the course of the reaction. Heat treatment of the catalyst may also be employed, e.g. tin plate is heated in molten borax at a temperature of 900‹ to 1000‹ C., or in a bath of oil or paraffin at 350‹ C. whereby most of the tin is alloyed with the iron. Sodium metaphosphate may be used instead of borax. The activated catalyst may be heated in a reducing-gas, e.g. moist hydrogen, at about 500‹ C. and, if desired, under pressure up to 250 atmospheres. In an example, preheated gas oil in the vapour state was passed with hydrogen into a reaction vessel packed with tin plated iron rings, the pressure being 150 atmospheres and the temperature 448‹ C. The separated unconverted gas oil was recirculated, the total yield of petrol boiling up to 200‹ C. being 52 per cent. In another example employing nickel plated iron at a temperature of 470‹ C. and a pressure of 250 atmospheres, the petrol was 75 per cent of the middle oil treated. The Provisional Specification describes also cobalt, molybdenum or chromium as coating metals and the use of aluminium or a steel containing 18 per cent of chromium and 8 per cent of nickel as base. Specifications 171,367, 171,390, 174,321, and 335,215 are referred to.
Patent GB-1021047-A (GB)
Title: Sealed-contact assemblies for light current electromagnetic relays and relays incorporating such assemblies
Inventor: FOULKES CHRISTOPHER HENRY
IPC: H01H51/28
Filed: 1963-05-13
Abstract: 1,021,047. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. May 13, 1963, No. 18874/63. Heading H2B. A sealed magnetic contact device comprises an annular ferromagnetic member 1 sealed between ceramic walls 4 and having an inwardly projecting resilient limb 2 forming a contact and armature for co-operation with a ferromagnetic member 6 sealed in one or both of the walls 4. Fig 4 shows a centre-stable arrangement, but one coil 11 and contact 6 may be omitted and the wall 4 is engaged by the armature 2 in the rest position (Fig. 3, not shown). The walls may be cup-shaped or dished so that spacing washers 9 are not required and alternatively one wall 12 (Fig. 5, not shown) may be a radially magnetized ceramic permanent magnet. A number of the sealed contact devices may be arranged magmetically in parallel in one relay (Fig. 6, not shown).
Patent GB-147040-A (GB)
Title: Hair cutting apparatus
IPC: B26B21/42
Filed: 1920-07-06
Abstract: 147,040. Jacquat, R. A. March 13, 1919, [Convention date]. Addition to 139,614. Void [Published under Sect. 91 of the Act]. Hair - cutting appliances of safety-razor type; razors, safety. A safety razor is adapted to be converted into a hair-trimmer by arranging the blade c below the guard comb a instead of above it, the clamping-plate d being secured in the usual manner. In a modification intended for use as a hair-trimmer only, the clamping-plate d is omitted, and the parts are riveted together with the blade c below the guard comb a.
Patent GB-477906-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03F1/08
Filed: 1936-07-09
Abstract: 477,906. Valve circuits for wireless reception. BAIRD TELEVISION, Ltd., and MERDLER, L. R. July 9, 1936, No. 19026. [Class 40 (v)] In a receiver particularly for short waves mistuning due to variation of grid bias is corrected by simultaneous re tuning. The Figure shows an arrangement in which the bias control 1 is ganged to a trimmer condenser 4. In the case where automatic gain control is employed variation of the oscillator frequency may be produced by electrical means such as those used in automatic tuning.
Patent GB-1145143-A (GB)
Title: Improvements relating to the manufacture of flat glass
Inventor: PLUMAT EMILE
IPC: C03C21/00
Filed: 1966-04-29
Abstract: 1,145,143. Treating glass surfaces. GLAVERBEL. 29 April, 1966 [6 May, 1965], No. 19053/66. Heading C1M. In a method of making flat glass during which at least one of its surface properties is altered, the sheet being updrawn from a layer of molten glass floating on a molten mass of greater density, the molten glass is traversed by an electric field extending between the higher density mass and the atmosphere in contact with the molten glass. In a preferred embodiment in which sheet glass 30 is updrawn from a molten glass layer 13 fed on to a bath 14 of molten tin, two positive electrodes 23 are attached to the L-shaped shields 18 and three negative electrodes 24 are upwardly placed in the molten tin bath 14. An ionized substance, e.g. including lithium ions, is fed into the atmosphere above the molten glass layer and within the electric field through pipes 25. Various other embodiments are illustrated for both the Pittsburgh and Libbey-Owens-Ford processes in which various cooling means (e.g. 95, 96, Fig. 5) and heating means are provided for regulating the molten glass from which the sheet is drawn. Such coolers are tipped with boron nitride to prevent glass sticking thereto in the event of contact. With more than one lower electrode and more than one upper electrode an electric field which differs in strength or direction from one zone to another of the glass can be generated; the electrodes in the different zones may be connected to different potentials; and also the spacing between upper and lower electrodes may differ from one zone to another. The process of the invention may permit controlled ion migration from the glass into the molten metal bath to give preferential reactions with sulphur and oxygen therein, or it may be used to modify the chemical, mechanical or optical properties of the sheet, for example by enriching with calcium, magnesium, lead, tin or barium or by coloration from iron, manganese, nickel, cobalt, copper and selenium.
Patent GB-1465453-A (GB)
Title: Production of leather
IPC: C14C3/28
Filed: 1975-05-07
Abstract: 1465453 Tanning leather SCHILL & SEILACHER 7 May 1975 [13 May 1974] 19089/75 Heading C6C Leather is tanned by using as a tanning agent a tanning-active dispersion of a polymer emulsion, from an acrylic monomer, in an aqueous solution of an aldehyde e.g. glutaric aldehyde. The tanning- active dispersion may be used prior to, during or subsequent to chrome tanning or combination tanning i.e. synthetic or vegetable tanning or it may be used alone in association with a pickling treatment. The polymer may be a copolymer obtained by emulsion polymerization, in the presence of anionic or non-ionic emulsifiers, of the monomers ethyl acrylate and methacrylic acid, ethyl acrylate being the predominant monomer. The dispersion of aldehyde solution and polymer emulsion may be obtained by mixing the two components and, 1, allowing the mixture to stand at ambient temperature or, 2, heating the mixture to 30 to 38‹C.
Patent GB-1369373-A (GB)
Title: System for controlling an oil-gasifying burner
IPC: F24H9/20
Filed: 1972-04-25
Abstract: 1369373 Oil-burners; water heaters; central heating systems JOH VAILLANT KG 25 April 1972 [19 May 1971] 19176/72 Headings F4T F4A and F4U An oil-burner comprises a heater 1 with a return conduit 2 from radiators 4 of a heating circuit. The water is reheated in a gilled body 5 by a burner 6 and then recirculated to the radiators via conduit 7. The heater 1 is connected to an electrical power supply at MP and R. The temperature in a gasification chamber 27 of the heater 1 is sensed by a sensor 18 which controls a lower limit switch 15 and an upper limit switch 25. When a master switch 8 is closed and an electric preheater 17 is energized by a contactor 16, the temperature in the gasification chamber 27 is raised to the lower limit required. Under the control of the sensor 18 the lower limit switch 15 then de-energizes the preheater and closes at its second contact 15<SP>1</SP> so that a self-holding relay 19 is energized to operate the controller 10 which via an output 10<SP>1</SP> energizes a motor 20 for driving a blower 21 and an oil pump 22. At the same time the controller 10 via an output 10<SP>11</SP> energizes an igniting transformer 23 so that sparks are produced at electrodes 24 which ignites the oil-gas which is formed in the gasification chamber 27 by spraying oil into the preheated gas. Air enters the chamber 27 via the holes 36 or the duct 39 from the annular channels 32, 33 where the gas is heated through the walls 34 of the combustion chamber 28. If the air is being delivered at too high a rate the lower limit switch energizes and de-energizes the heater 17 and at the same time the servomotor 41 adjusts a throttle valve 42 in the air supply duct so as to reduce the flow of air, the time the servomotor is operating being controlled by a timer 44. If the air is being delivered to the chamber 27 at too low a rate the temperature rises till it reaches the upper limit and the switch 25 then responds to close the oil valve 26 and energize the servomotor 41 in ths opposite direction so that the throttle valve ie turned to increase the flow rate. When the temperature drops below the upper limit the switch 25 returns to its lower position to open the oil valve again. If the oil-gas is not ignited after a predetermined time delay, a detector 30 responds and subsequently the contact 9 interrupts the circuit and a fault light 31 is turned on. A room thermostat 12 and a forward flow thermostat 13 govern a flow control 14.
Patent GB-121785-A (GB)
Title: Improvements in and relating to the Production of Steel from Scrap.
IPC: C21C5/02
Filed: 1917-12-29
Abstract: 121,785. Armstrong, Whitworth, & Co., Sir W. G., Trevelyan, F. B., and Rowden, W. C. Dec. 29, 1917 Scrap processes.-In the production of steel from scrap, with or without pig iron, the carbon necessary to enable the charge to boil in the required manner without burning is introduced into the open hearth or other furnace used in a. dense or difficultly combustible form, such as charcoal briquettes. Ore may be added to the charge if necessary.
Patent GB-1167403-A (GB)
Title: Moulding Patterned Thermoplastic Bodies
Inventor: ONO TAIICHI
IPC: B29C45/14
Filed: 1967-04-26
Abstract: 1,167,403. Moulding patterned thermoplastic bodies. T. ONO. 26 April, 1967 [19 Nov., 1966], No. 19291/67. Heading B5A. [Also in Division B6] A method of moulding patterned thermoplastic bodies in a closable mould having a male member 1 and a female member 2 comprises the steps of applying to a limited area of the surface of one of the mould members a layer of a contact-type thermal-release adhesive adapted to bond to a face applied with pressure thereagainst and to weaken in bonding force upon heating, affixing a face of a patterned sheet to the layer, injecting into the mould, from a nozzle 7, a heated thermoplastic material at an elevated pressure to fill the mould and urge the sheet against the adhesive layer to which it is initially bonded by the pressure and thereafter its bond with the adhesive is weakened by the heat, cooling the material in the mould to bond it to the sheet and then removing the moulded body and the sheet from the mould. The adhesive may be a silicone, e.g. dimethyl siloxane. The patterned sheet may be coated with a solution of a heat-resistive synthetic rubber before it is placed in the mould. The patterned sheet or film may be made of cellulose acetate or may be a thermoplastic, thermosetting plastic paper, cloth, leather, wooden flakes or metal sheet, any of which may be coated with cellulose acetate.