baber/WOPTO huggingface dataset:
Patent GB-459855-A (GB)
Abstract: 459,855. Boiler &c. stoves. GRABOWSKY, C. A. L. A., 24, Kersland Street, Hillhead, Glasgow. July 13, 1935, No. 20092. [Class 126] [See also Group XII] A water heater or steam generator comprises a vertical cylindrical tank a, a single central vertical flue b extending from the bottom of the tank through the top thereof and constituting the sole passage for the gaseous products of combustion, the annular space between the shell of the tank and flue constituting a water receptacle and the lower portion of the flue constituting a combustion chamber, firebars f or burners (not shown) located at the foot of the flue and an air supply conduit j extending from below the firebars or burners outwardly below the tank and beyond the shell of the tank. The air supply conduit is preferably divided and provided with a regulating valve l and terminates beneath the grate or burners in an air heating chamber formed by members g<1>, g<2>. Above the tank the flue is provided with an adjustable air inlet c, a fuel door d and a damper e. In a modified form, Fig. 7, the tank is enlarged at the top as at a<1> for heating pans or the like a<2>. Above the door d the flue may be provided with a heating chamber s.
Patent GB-1506946-A (GB)
Title: Apparatus for raising and feeding flat workpieces from a stack
IPC: B65H3/08
Filed: 1975-11-06
Abstract: 1506946 Separating sheets HAMMERLE AG 6 Nov 1975 46009/75 Heading B8R Sheets 1, e.g. metal plates, are separated from a pile 2 by suction heads 8, 8<SP>1</SP> mounted on a lifting frame 7, and a carriage 9, movable on a track 10 which extends below the suction heads when the frame 7 is in its raised position, takes over separated sheets from the suction heads. With the carriage in its illustrated position, frame 7 is lowered and a foremost row of suction heads 8<SP>1</SP> is extended to contact and raise an uppermost sheet from the pile. An air blast from nozzles on the carriage is then applied and the remaining suction heads 8 actuated. The frame 7 is then raised so that the carriage 9 can be moved under the separated sheet. Finally frame 7 is lowered again and rollers 11 on the carriage drive the sheet to a press or shears 3. Alternatively the carriage may return to its initial position with the sheet thereon, this position being adjacent a cutting station (31), (32), Fig. 3 (not shown). In this case the rollers may be free running and the sheet removed from the carriage by pushers mounted thereon.
Patent GB-1082198-A (GB)
Title: Process for the preparation of lactone polyesters
IPC: C08G63/82
Filed: 1964-11-12
Abstract: In the manufacture of polyesters of molecular weight 500-9000 by polymerizing a lactone at 50 DEG  to 300 DEG  C. in the presence of an organic initiator having at least one reactive hydrogen atom, there is used as a catalyst a stannous diacylate or a stannic tetracylate of formula <FORM:1082198/C3/1> where R is a hydrogen atom or a hydrocarbyl group.  The preferred lactones are those of formula <FORM:1082198/C3/2> in which n is at least 4, at least n + 2R's are hydrogen and the remaining R's are hydrogen atoms or alkyl, cycloalkyl, aromatic hydrocarbon or alkoxy groups.  The preferred initiators are mono- and polyhydric alcohols, mono- and poly-amines, vinyl polymers containing hydroxyl or amino groups, amides, sulphonamides, hydrazones, semicarbazones, oximes, polycarboxylic acids, hydroxycarboxylic acids and aminocarboxylic acids.  The polyesters may be used as plasticizers for vinyl resins.
Patent GB-1286494-A (GB)
Title: Method of constructing a building and buildings constructed accordingly
IPC: E04H1/00
Filed: 1969-09-19
Abstract: 1286494 Modular buildings HERPAIN S A 19 Sept 1969 [12 June 1969] 46308/69 Heading E1A A building comprises groups of rooms, each group being boxed within one of a plurality of contiguous regular hexagons and consisting of a main regularly hexagonal room, such as 50, of which the boxes smaller than the respective hexagon and of which two adjacent walls are along two adjacent sides of the respective hexagon and other smaller rooms such as 43 whose boxes are irregular polygons of which the sides are aligned along one or other of three directions, 120‹ apart, parallel to one or other of the sides of the hexagon. Walls erected along the sides of the smaller hexagon and the polygons divide the building into main rooms and auxiliary units such as exits, passages, storage, pantry, bathroom etc.
Patent GB-1031901-A (GB)
Title: Improvements relating to silver halide photography
IPC: G03C1/492
Filed: 1962-12-07
Abstract: 1,031,901. Photographic silver halide materials and processes. E. I. DU PONT DE NEMOURS & CO. Dec 7, 1962 [Nov. 8, 1962],No. 46343/62. Heading G2C. Photographic elements which give positive images on exposure followed by treatment with a silver halide solvent comprise a silver halide emulsion containing a heterocyclic nitrogen compound having at least one bond of the intracyclic nitrogen bound to an intracyclic carbon and in which which any divalent atom that is attached to more than one other atom is in the ring, the particular compound and the amount used being determined by tests as set out in the Specification. In general the amounts are said to be between 2.7 and 250g.per mole of silver halide. Compounds which comply with the tests are 2-methyl-, 2-hydrazino-, 2- amino-2-amino-6-methyl-and 2-chloro-benzthiazoles, 2-methyl-thiazoline, 5-nitrobenzimidazole and 5-nitro-indazole, and these are used in specified amounts of from 0.005-0.04g.per 25 mg of silver halide. Carbazole, p-nitrophenol and 3- methyl-4-(m-nitro-phenyl)-5-pyrazolone are unsuitable. In the examples, a film base coated with a silver chlorobromide emulsion is bathed in an aqueous alchololic solution of the compound, dried and exposed. Treatment with a sodium thiosulphate solution containing sodium hydrioxide, followed by bathing in a fogging developer comprising 1-phenyl- 4-methyl-3-pyrazolidone, hydroquinone and potassium iodide gives a positive image. In certain cases the thiosulphate solution may be acid. In example VI, 2. 7g of 5-nitrobenzimidazole is added per mole of silver halide and after exposure and treatment with thiosulphate, the emulsion is flashed with white light and the image reduced chemically to silver.
Patent GB-1522827-A (GB)
Title: Conveyor apparatus provided with a shutoff control device
IPC: B65G43/02
Filed: 1975-11-11
Abstract: 1522827 Endless conveyers EICKHOFF MASCHINENFABRIK U EISENGIESSEREI mbH Gebr 11 Nov 1975 [11 Nov 1974] 46471/75 Heading B8A A feeder 2 comprises an endless belt 1 whose upper run is supported by sets of rollers 3, beneath which is mounted a frame 9 which is supported by suspension members 12, 12a in the form for example of leaf springs, the frame 9 having plates 10 extending upwardly between the roller sets 3. If a sharp-edged object 27 penetrates the top of the belt 1 during operation and strikes against a roller set 3 or plate 10, the frame 9 is moved in the direction of the belt 1 and an actuating element 25 on the frame 9 actuates a stop mechanism 26 mounted on a belt frame support 8, thereby stopping the belt drive.
Patent GB-1345096-A (GB)
Title: Tape web transport apparatus
IPC: G11B15/61
Filed: 1972-10-10
Abstract: 1345096 Feeding record tapes INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1972 [20 Dec 1971] 46552/72 Heading G5R The path of a tape 12 between two reels includes two arcuate portions, one on each side of a transducer head 58, each arcuate portion having a length at least twice the width of the tape and being defined by a bed 79 having a width substantially equal to the maximum width of the tape, with on one side a rigid tapeguide wall 78 and on the other side a compliant guide 70 which presses the tape 12 against the rigid wall 78. Vacuum buffer columns may be provided between the arcuate portions of the tape path and the reels, and the bed 79 may be porous or perforated to allow the injection of an air bearing for the tape, outlet ports being contained in both the rigid wall 78 and the compliant guide 70.
Patent GB-1048428-A (GB)
Title: Transparent wrapping films of acrylonitrile copolymers
Inventor: CONWAY LEWIS JOHN
IPC: B29C55/00
Filed: 1963-11-26
Abstract: 1,048,428. Acrylonitrile copolymer films. BRITISH SIDAC Ltd. Nov. 20, 1964 [Nov. 26, 1963], No. 46637/63. Heading B5B. Thin, transparent, unsupported films suitable for wrapping foodstuffs are made by extrusion of a solution of an acrylonitrile copolymer through a narrow slit into a coagulating liquid in which the copolymer is not soluble, although the coagulating liquid is miscible with the spinning solvent, and the coagulum so produced is stretched both longitudinally and transversely in the presence of steam at a temperature of 100‹ C. or more. Specified copolymers include 9 : 1 acrylonitrile/vinyl acetate, 9 : 1 acrylonitrile/methyl methacrylate and 85 : 15 acrylonitrile/vinyl pyridine. Spinning solvents specified include dimethyl-formamide, 51% aqueous sodium thiocyanate solution containing 10% by weight methanol, and 51% calcium thiocyanate solution. Specified coagulating liquids include water and glycerine, and aqueous sodium thiocyanate solution. In examples, the fibre so produced is stretched, e.g. to a draw ratio of 5 : 1 in each direction in steam at 100-105‹ C. and dried in hot air or by infrared radiation. Tubular film may be made by extrusion through an annular orifice into a bath, the collapsed tubing obtained being inflated with air to effect stretching while heating in steam, the expanded tube then being dried in hot air.
Patent GB-1239775-A (GB)
Title: Magnetic memory core
Inventor: METZ JACK LEMOYNE
IPC: G11C11/06
Filed: 1968-10-02
Abstract: 1,239,775. Magnetic storage devices. TELETYPE CORP. 2 Oct., 1968 [11 Oct., 1967], No. 46680/68. Heading H1T. [Also in Division H3] A magnetic storage device comprises a substantially figure-of-eight structure, Fig. 3, of which the portions crossing each other are spaced apart, the structure being switchable from either direction of magnetization to the other by a current passed in one and the same direction through one or the other of the loops formed by the structure. The switching current may be an electron beam directed through one of the loops. A storage array is described (see Division H3).
Patent GB-1087595-A (GB)
Title: Improvements in cyclic organosilicon compounds
Inventor: WU TSE CHENG
IPC: C07F7/21
Filed: 1965-11-05
Abstract: A lubricant grease comprises an organopoly-siloxane fluid combined with 10% by weight of a cyclic organosilicon compound of formula <FORM:1087595/C4-C5/1> where R is a substituted or unsubstituted monovalent hydrocarbon radical free of aliphatic unsaturation and a is 2 or 3.  A specified composition is octaphenyl-2,3,5,7-tetrasila-1,4-6-tri-oxacycloheptane milled with a methylphenyl-polysiloxane fluid.ALSO:The invention comprises cyclic organosilicon compounds having the formula <FORM:1087595/C3/1> where R is a substituted or unsubstituted monovalent hydrocarbon radical free of aliphatic unsaturation and a is 2 or 3.  The compounds are prepared by reacting dichlorodisilanes of formula ClR2Si-SiR2Cl with siloxane diols of formula HO-(R2SiO)a-H, in the presence of an acid acceptor. Examples describe the preparation of octaphenyl-2,3,5,7-tetrasila - 1,4,6 - trioxacycloheptane, 2,2,3,3 - tetraphenyl - 5,5,7,7 - tetra - p - tolyl - 2,3,5,7 - tetrasila - 1,4,6 - trioxacyloheptane and 2,2,3,3-tetramethyl - 5,5,7,7,9,9 - hexaphenyl - 2,3,5,7,9 - pentasila - 1,4,6,8 - tetraoxanonane. Compositions, useful as lubricants and heat stable resins, comprising organopolysiloxanes and the compounds of the invention are mentioned. A specified composition is octaphenyl-2,3,5,7 - tetrasila - 1,4,6 - trioxacycloheptane milled with a methylphenylpolysiloxane fluid.
Patent GB-1274503-A (GB)
Title: Improvements in and relating to machine tools
IPC: G05B19/4065
Filed: 1969-09-30
Abstract: 1,274,503. Indicating tool wear. BOEHRINGER G.m.b.H. GEB. 30 Sept., 1969 [17 Oct., 1968], no. 47078/69. Heading B3B. [Also in Division G1] A machine tool, equipped with a plurality of tools which can be moved into operational contact with a workpiece by a tool-changing device, is provided with means for measuring the wear of individual tools by measuring separately for each tool the sum of the periods of operational contact between tool and workpiece and with means for emitting a signal and/or automatically stopping operation of a tool in respect of which the sum of the measured periods has reached a predetermined limit. The tool-changing device may comprise a rotary turret and each tool is associated with an electric counter 10, 110, ... When a particular tool is selected an associated switch 12, 112, ... connects the counter 10, 110, ... to a common line 14, which is connected by a switch 16 to an impulse generator 18 only when the selected tool is operational, e.g. during the forward feed of the tool. Limiting signals representing the maximum time of use without excess wear may be fed to the counter 10, 110 at inputs 20, 120 and when the limits are reached signals from outputs 22, 122 may cause acoustic or optical warnings or initiate control operations to stop the machine or to substitute the tool and the counters may be reset to zero by signals fed to inputs 24, 124. Switch 16 may be replaced by a switch 26 actuated by a relay whose circuit is closed only when the tool contacts a workpiece or alternatively the switch 26 may be actuated by a control member which measures the power for driving the machine or the cutting force of the tool. The counters or the impulse generator may be modified to introduce factors or coefficients to compensate the time measurements for varying operational conditions such as differences of feeding speed or of hardness of the tool. Where a number of tools are used simultaneously, each may be provided with its own impulse generator. The impulse generators may be replaced by electric clocks, whose speeds can be modified in accordance with any compensating factors to be introduced. The degree of wear may be calculated by a computer.
Patent GB-1034457-A (GB)
Title: Improvements in or relating to shaft furnaces
IPC: F27B1/00
Filed: 1962-12-27
Abstract: 1,034,457. Shaft furnaces. FRIEDRICH SIEMENS, INDUSTRIEOFENBAU G.m.b.H. Dec. 27, 1962 [Dec. 27, 1961; Feb. 16, 1962], No. 47133/62. Heading F4B. In a shaft furnace, particularly for burning limestone, heating gas is passed transversely through the charge from a chamber 9 to a chamber 10, by way of inlets 6 and outlets 7 extending over substantially the entire height of the firing chamber 2. The passages 6, 7 are offset with respect to each other and each set of passages is arranged to form a checker pattern. Bricks 8 of triangular section are arranged in the passages so that any overflow through the passages falls to the bottom of the chambers 9 and 10 and can be removed by mechanical means. The cooling section 4 leads to two discharge hoppers 1 feeding individual vibrating channels 3. By controlling the speed of the channels 3 the travel of material through the furnace can be adjusted so that one part of the charge has a longer firing time than another. The size of the inlets and outlets 6, 7 is determined in accordance with the required firing conditions, the outlets 7 being larger than the inlets 6. The firing chamber may have a stream-lined crosssection, and taper from bottom to top. The heating gas flows through the charge in one direction, the convection flow of the gas in the chambers 9, 10 assisting the circulation. Part or all of the gas may be recirculated, and the direction of heating gas flow may be reversible. The recycled gas is heated by mixing it with hot gas from burners, or it may be reheated in an externally fired heat exchanger.
Patent GB-1438050-A (GB)
Title: Journey plotter
IPC: G07C5/00
Filed: 1974-10-31
Abstract: 1438050 Journey plotters MOTO METER GmbH 31 Oct 1974 [3 Nov 1973] 47134/74 Heading G1J A journey-plotter device comprises two carrier members, one 28 being driven by clock mechanism (not shown) through a gear train 17, 16, 26, 25, 24, 23 and a hollow shaft 6, the other 12 being attached to the gear 16 so that they rotate at the same speed in opposite directions. Identical record carriers 13, 36 are mounted on the members 12, 28 and one or more styluses 18, 19, 38, 39 are used to record required values. Mounting plates 1, 2, 3 together with the recording means associated with styluses 18, 19 may be fixed in a lid of the device so that when the lid is closed the record carrier 36 is brought into contact with styluses 38, 39 and a shaft 7 is coupled to a tachometer, the reading of which is indicated by a pointer 8. Carrier member 28 is removably attached to the shaft 6 by a bayonet connection 31. The record carrier 36 is retained by a clamping lever 34 and this lever 34 may also provide the rotational connection between the carrier member 28 and the shaft 6 instead of the bayonet connection.
Patent GB-1155105-A (GB)
Title: Emergency Venting Manhole Cover
Inventor: FREES JOSEPH H DE
IPC: F16J13/02
Filed: 1966-10-21
Abstract: 1,155,105. Manhole cover. J. H. DE FREES. 21 Oct., 1966 [22 Oct., 1965], No. 47213/66. Heading F2P. A manhole cover comprises a seat 11, a cover portion 27, an arm 18 pivoted at 19 and extending over the cover and spaced therefrom, spring mountings 24, 35 on the arm and cover respectively, a spring 36 therebetween and adjustable means 37 whereby the spring may be compressed so that the cover may lift from the seat when the pressure in the container 1 exceeds a certain value, the adjustable means effecting attachment of the cover to the arm, latch means 42 being provided to maintain the arm extended across the opening to position the cover opposite the seat. The device provides for emergency venting of the container, additional to the action of conventional vents 30 provided in the cover 27. The latch 42 has a portion 47 which engages a vertical shoulder 48 on the lock arm 18 to maintain the latter in place. If pressure in the tank urges the cover upwards when the latch 42 is swung in a releasing direction about its pivot 43 a lip 50 on the arm engages portion 47 to arrest further movement until the pressure is relieved. The seat 11 is carried on a plate 6 sealed to the container at 5 and secured thereto by a circular channel clamp 7 secured by a bolt 8.
Patent GB-1135115-A (GB)
Title: Improvements in packaging
IPC: B65B9/06
Filed: 1966-10-21
Abstract: 1,135,115. Seaming non-metallic sheet material. INTERNATIONAL AUTOMATED MACHINES Inc. 21 Oct., 1966 [21 Oct., 1965], No. 47227/66. Heading B5K. [Also in Division B8] Four packages 442, Fig. 29, arranged side by side, are formed from a strip (38) of paper &c. with a heat sealable coating on one side, folded in half at 448. The folded strip 38 is passed between a pair of sealing rolls 42, 44, Fig. 21, which seal and separate the packages 442. Each roll 42, 44 comprises a keyed hollow shaft 420 enclosing an electrical heater 422, and carrying knurled rollers 432, Fig. 25, separated by disc knives 439 and spacers 437, arranged as shown. The rollers are urged towards one another by springs 494, but the knurled faces 434, 436 of the rollers 432 are prevented from touching by an adjustable stop 488 in their housing, Fig. 23.
Patent GB-1027583-A (GB)
Title: Process for purifying sugar solutions
IPC: C13B20/14
Filed: 1962-12-14
Abstract: <PICT:1027583/C6-C7/1> In purifying a sugar solution 7, such as a carbonated beet-sugar juice containing 4000 p.p.m. of ionic impurities computed as calcium carbonate, it is passed, e.g. at a temperature of 30 DEG C., through a strongly-basic anion-exchange resin (OH-type) in a column 1 and then through a weakly acidic cation-exchange resin (H-type) in a column 2, from which a purified sugar solution 8 is discharged. Part of this solution is passed through a strongly basic anion-exchange resin in a column 3 and then mixed with the remaining part to yield a mixture, e.g. having a pH between 7 and 8, which can be concentrated. Exhausted anion-exchange resin is passed from column 1 into a column 5, where it is treated with aqueous sodium chloride 10, e.g. at 50 DEG C., and changed to a Cl-type resin, which is then passed into a column 6, where it is treated with aqueous sodium hydroxide 11 and regenerated as OH-type anion-exchange resin, which is returned to column 3 and thence to column 1.  Liquor from column 6 is mixed with the aqueous sodium chloride supplied to column 5.  The cation-exchange resin is moved from column 2 into a column 4, in which it is regenerated with a dilute mineral acid 9, e.g. sulphuric or hydrochloric acid, and the regenerated cation-exchange resin is then returned to column 2. Liquor accompanying the ion-exchange resins may be displaced by water, as described in relation to Fig. 2 (not shown here) and in Specification 1,023,943.
Patent GB-1169197-A (GB)
Title: Proximity Detecting Switch Means
IPC: H03B5/12
Filed: 1966-10-24
Abstract: 1,169,197. Proximity detector circuits. ROBERTSHAW CONTROLS CO. Oct. 24, 1966 [Oct. 23, 1965], No.47623/66. Heading G1N. A proximity switch circuit comprises a proximity sensing capacitor CS connected in a bridge circuit with a set point capacitor CSP and a centre-tapped secondary winding of a transformer T, the bridge circuit being connected into the regenerative feedback loop of a transistor oscillator, whereby the amplitude of oscillation is modulated by the approach of a body to the sensing capacitor. In the absence of a body, the set point capacitance is greater than the sensing capacitance, giving a maximum position feedback and corresponding maximum amplitude of oscillation. A bistable trigger circuit 24 is switched at a predetermined amplitude of oscillation to energize a relay or output circuit (28). In the oscillator, transistors Q1 and Q2 have substantially identical characteristics and are connected so that the effects of their base-collector capacitances substantially cancel out. Sensing capacitor construction. One electrode of the sensing capacitor comprises the housing for the circuitry of Fig. 4 and the other electrode is a fired silver coating 50 on a glass plate 48.
Patent GB-1454427-A (GB)
Title: Method and apparatus for scanning an image field
IPC: G02B7/182
Filed: 1974-11-04
Abstract: 1454427 Scanning mirror ELTRO GmbH GES FUR STRAHLUNGSTECHNIK 4 Nov 1974 [27 Nov 1973] 47650/74 Heading G2J A scanning mirror 1 pivoted at 3 is oscillated by magnetic coils on 5, the coils also forming part of the oscillator circuit. In use the device is driven till the mirror strikes stops 4 to constrain the free sine motion to approximate to a straight line. A variable capacitor 8 in series with a fixed capacitor 9 gives an output indicative of the position of mirror 1.