baber/WOPTO huggingface dataset:
Patent GB-991775-A (GB)
Title: Improvements in air compressors
IPC: F04B39/12
Filed: 1962-03-21
Abstract: 991,775. Air compressors. C. W. DAVIS, and STOVIS ENGINEERING CO. Ltd. March 21, 1963 [March 21, 1962], No. 10833/62. Heading F1N. An air compressor comprises a piston working in a cylinder the wall of which has therein a lengthwise groove 12, the groove being open to atmosphere and extending towards the cylinder head to a position less than the length of the stroke thereform, and an inlet valve 5 is arranged to open a port 11 in the piston after the piston has moved for some distance past top dead centre. The compressor has two piston heads 1 connected together by a portion having therein a cylindrical hole 4 which constitutes the slot of a slot and block driving mechanism, the block of which forms the inlet valve 5 and is mounted on a crank pin 9. The hole 4 is open to atmosphere and the valve 5 controls the opening of the inlet ports 11 in the piston heads, each inlet port being formed by three small holes. The cylinder head has an outlet port 13 controlled by an outlet valve 3. The groove 12 may be formed as shown in a cylinder liner 14. In operation each inlet port 11 does not start to open until the piston has moved some way on its inward stroke so that residual compressed air trapped in the cylinder can expand into the hole 4, whereafter the piston uncovers an end of the groove 12 when the piston nears the end of its inward stroke, to ensure that the cylinder is completely refilled. Specification 608,379 is referred to.
Patent GB-1349362-A (GB)
Title: Process for preparing live virus vaccines
IPC: C12N7/00
Filed: 1971-04-22
Abstract: 1349362 Virus vaccines; cultivating virus RESEARCH FOUNDATION FOR MICROBIAL DISEASES OF OSAKA UNIVERSITY 22 April 1971 [22 April 1970] 10853/71 Heading A5B [Also in Division C6] Viruses for the production of vaccines are  cultivated in the usual way in embryonated quail egg or in a tissue culture of a quail embryo fibroplast, serial culture either wholly or partially in such media being used when an attenuated virus is required. Reference is made to the cultivation of the following viruses: rubella, mumps, influenza A and B, distemper, vaccinia, Newcastle disease, Japanese encephalites, dongue fever, rabies and Marek's disease.
Patent GB-390327-A (GB)
Title: Improved process of colour photography
IPC: G03C7/22
Filed: 1932-04-15
Abstract: 390,327. Colour photography and kinematography. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on.Main, Germany. April 15, 1932, No. 10860. Convention date, April 15, 1931. [Classes 97 (i) and 98 (ii).] Three-colour photographs or kinematograph films are produced by a combination of additive and subtractive methods by dividing the lightbeam from the object into two beams by any known optical means, passing these beams through filters one of which transmits two of the component colours and the other the remaining one, and causing them to fall side by side on two superimposed sensitive layers so that two colour-record images are formed in superimposition, one on each layer, under the first filter, and the third colour-record image is formed under the second filter in one layer only; developing the records and printing them, preferably on stock coated on both sides, so that the positive components are arranged similarly to the negatives, colouring the superimposed pair in their complementary colours while leaving the adjacent third component uncoloured, and projecting the positive on to a screen by means of the optical system and filters used in the taking camera. A modification is described in which four colour-component images are recorded in superimposed pairs side by side by using filters each of which transmits two component colours. The invention is illustrated for three-colour work, the taking filters Y, B, Fig. 1, being yellow and blue, and the superimposed sensitive layers being blue-green sensitive and red sensitive, arranged in contact with supports outermost. Green and red colour-record images g, rare .thereby formed in superimposition, with a blue record image b adjacent to them, the second layer remaining unexposed in the area u under the blue record. Prints are produced in corresponding positions, Fig. 2, on stock coated on opposite sides. The pair p and by from the green and red records are coloured purple and blue-green respectively, while that bw from the blue record remains uncoloured. The area c under the print bw is blank and transparent. The coloured picture is projected by the same optical system and filters as were used for taking the negatives. When the four-colour process is worked, the fourth record occupies the part u or c of the superimposed sensitive layers (negative or positive) which is unexposed in the three-colour process.
Patent GB-897252-A (GB)
Title: Metal casting apparatus
IPC: B22D11/041
Filed: 1959-03-31
Abstract: 897,252. Continuous-casting machines. REYNOLDS METALS CO. March 31, 1959 [April 4, 1958], No. 10936/59. Class 83 (1). Apparatus for continuously casting aluminium, steel, brass or copper comprises an annular mould shell and means 80 for directing a cooling stream of fluid against the solidified metal, the shell having a heated first wall 60 contacted by the molten metal, and a contiguous cooled second wall 52. The metal, graphite or aluminium wall 52 may be cylindrical or inwardly-, or outwardly-tapered. The wall 60 may be of asbestos or of graphite insulated from the wall 52. The lower end of the wall 52 is tapered and a meniscus 98 is formed on the metal. Lines 104 and 110 represent the freezing and solidification lines. With slow withdrawal speeds, the line 110 may be moved upwardly until, due to contraction, the ingot assumes the outline 112a and does not touch the wall 52. In a modification, the cooled wall 52, Fig. 1c, has an inclined portion 124, so that two menisci, 136, 138, are formed, or alternatively, the ingot may be made to take the form 112a or 112b. Other moulds have an intermediate tapered graphite liner 160, Fig. 2; a graphite insert 62, Fig. 3, with an insulated backing 166; a downwardly projecting lip 202, Fig. 9; a step 168, Fig. 5, between the walls 60, 52; or several steps 192, 194, 196, Fig. 8, on the cooled wall 52. The latter steps form grooves which may contain graphite lubricant. Lubricant, such as peanut oil, may also be supplied to a groove 68, Fig. 1, to pass down through the porous wall 60. In all the embodiments, a curved surface of the ingot, in the region where solidification commences, is in contact with a radially inclined surface of the mould. Several moulds 50, Fig. 10, may be fed from a common asbestos channelled block 220, the ingots being lowered on an elevator 230. The cross-section of the mould may be rectangular and the wall 60 may be heated. Furthermore, tubular ingots may be cast, the inner mould wall then being tapered towards the centre of the ingot to allow for shrinkage. U.S.A. Specifications 2,301,027, 2,367,148 and 2,740,177 are referred to.
Patent GB-1374575-A (GB)
Title: Semiconducting gas-sensitive devices
IPC: G01N27/12
Filed: 1971-04-23
Abstract: 1374575 Gas detecting devices NATIONAL RESEARCH DEVELOPMENT CORP 26 Nov 1971 [26 Aug 1970(2) 23 April 1971(2)] 41061/70 41062/70 11001/71 and 11002/71 Heading G1N In a gas sensitive device of the type having a metal oxide semi-conducting element and a pair of spaced electrodes, the lattice system of the metal oxide has deliberately incorporated therein at least one further metal which constitutes an activator serving to establish or develop in the system at least one metallic ionic species which reacts more strongly within a given temperature range to the presence of the gas to be detected than the predominent metallic ionic species of the semi-conducting oxide, with the result that the conductivity of the device is highly dependent within the given temperature range on the concentration of the gas to be detected. The ionic species established or developed may either be some of the metal ions of the oxide or ions of the added metal, and the concentration of these ionic species may be increased by the  addition of a still further metal. Examples are given in the Specification. Depending on the types of oxides and added metals used, reducing gases , basic gases, and acidic and oxidizing gases can be detected. The element is preferably porous and can be mounted on a fused glass bead in which is embedded a heating coil. Alternatively, the element can be arranged between two conductors either in parallel or normal to each other. The element is composed of spherical particles sintered or partially fused together, the particles being deposited from molten ammonium nitrate or molten ammonium formate.
Patent GB-1170653-A (GB)
Title: Acid Anilides and their use as Herbicides
IPC: A01N/
Filed: 1967-03-09
Abstract: 1,170,653. Herbicides containing acid anilides. BADISCHE ANILIN-& SODA-FABRIK A.G. 9 March, 1967 [10 March, 1966], No. 11132/67. Heading A5E. [Also in Division C2] Herbicidal compositions contain a compound of the formula where X is halogen, CF 3 , OH, OCH 3 , SO 2 CH 3  or CH 3 , n is 0-3, Y is a saturated or unsaturated linear or branched aliphatic radical of 1-6 carbon atoms optionally substituted by Cl, Br or CN or is a cyclopropyl radical, R is alkyl of 1-5 carbon atoms, -COR<SP>1</SP> or where R<SP>1</SP> is a saturated or unsaturated aliphatic radical of 1-4 carbon atoms optionally substituted by Cl, Br or a phenoxy radical which may be substituted by Cl or CH 3  or is a cyclopropyl radical, R<SP>2</SP> is an alkyl radical of 1-4 carbon atoms and R<SP>3</SP> is H or an alkyl radical of 1-4 carbon atoms as an active ingredient together with an emulsifying or dispersing agent or a solid or liquid carrier. Other herbicides e.g. triazines, dichloroalkyl carboxylic acid derivatives, ureas, uracils and pyridazones may be included in the compositions.
Patent GB-1008999-A (GB)
Title: Improvements in or relating to rotation responsive devices
IPC: G01C19/56
Filed: 1963-03-21
Abstract: 1,008,999. Turn-sensitive devices employing vibrating masses. A. KAROLUS. March 13, 1964 [March 21, 1963], No.11181/63. Heading G1C. In a rotation responsive device employing a vibrating element disposed so that its moment of inertia about a reference axis changes as it vibrates the vibratory element being disposed in a frame attached to a main body by two torsion bars. The natural frequency of vibration of the vibratory element and its natural frequency of rotational oscillation about the reference axis are both predominantly dependent on the same elastic property of the material of which the element is constructed. In Fig. 1 two vibratory elements 1, 2 are each mounted on a torsion bar 3, 4 respectively supported by members 5, 6 (the member 6 is obscured by the member 5). The members 5, 6 are carried on a bar 7 which is attached to a frame 8 by torsion bars 9, 10, the common axis 15 of the torsion bars 9,10 forming the reference axis. All the parts so far mentioned are machined from a single block of steel. The frame 8 is mounted on a main body by way of torsion bars 13,14 and leaf springs 11,12. The element 1, 2 are vibrated by means not shown and these vibrations cause vibration of the frame 8 along the axis 15, this vibration being allowed for by the springs 11,12. A detecting means (not shown) is provided to detect and measure torsional oscillation of the bar 7 which will be caused by rotation of the device about the axis 15 giving signals responsive to this rotation. Suitable natural vibration frequencies are given in the Specification together with provisions regarding damping of some of the vibrations produced. Specification 947,310 is referred to.
Patent GB-398938-A (GB)
Title: Improvements in or relating to dog starting apparatus
IPC: A63K3/02
Filed: 1932-04-19
Abstract: 398,938. Dog collars. SMITH,' H. M., 812, Lathrop Avenue, River Forest, Illinois, U.S.A.-(Assignee of Keen, T. A. ; 4901, West Pine Street, St. Louis, Missouri, U.S.A.) April 19, 1932, No. 11205. Convention date, April 20, 1931. [Class 62.] In a dog-starting apparatus comprising a linear bar 16, having thereon one or more latching mechanisms releasably connected to the dog harness, the harness comprises a neck strap 71, and two body straps 73, 75, all connected to a top member 70. A number blanket 78 may be buttoned to the straps 73, 75. Two link members 81a, 82a on the top member 70 engage pivoted latches 45 on blocks 40. These latches are held by pivoted retaining members 50, 58 which are operated from the releasing rod 52 by link mechanism.
Patent GB-544099-A (GB)
Title: Improvements in and relating to magnesia cements
IPC: C04B28/32
Filed: 1940-07-04
Abstract: 544,099. Magnesia cement. CONSTRUCTIONAL ENGINEERING CO., Ltd., WOOD, D. H., and HOOD, E. W. July 4, 1940, No. 11220. [Class 70] A magnesia cement contains an irreversible lyophilic colloidal filler (additional to any magnesium hydroxide formed) such as kaolin, casein, dextrin or artificial kieselguhr, the proportions being such that the magnesia is present in at least sufficient quantity theoretically required to form the oxychloride but insufficient to bind all the water and that after setting of the cement there is substantially neither excess water, i.e. water not bound either by magnesia or by filler, nor excess filler, i.e. filler not exerting substantially its full capacity to bind water. The magnesia may be in the form of finely ground calcined magnesite, and a stabilizer such as dextrin or casein may be added when the filler is artificial kieselguhr. In examples the proportions are kaolin 33-66 per cent. or casein 33-50 per cent. or artificial kieselguhr 30-70 per cent. and magnesia the rest, and 9 parts of this mixture is mixed with 7-9 parts of magnesium chloride solution.
Patent GB-732739-A (GB)
Title: Improvements in or relating to electric contact and/or indicating devices
Inventor: HIRT THEODOR
IPC: H01H53/015
Filed: 1953-04-23
Abstract: 732,739. Measuring instruments. ELEKTRO-TRETON GES. April 23, 1953, No. 11220/53. Class 37. [Also in Group XXXVII] A moving coil instrument comprises a permanent magnet 10 having two pole-pieces 11, 12 forming an air gap 14 in which is arranged one side of a moving coil 15, to the opposite side of which are attached two pivots 16 co-operating with bearings 17 so that when the coil is energized it will move about the bearing to cause a pointer 18 to move. The parts 16 are made of a ferromagnetic material so that an attraction with the polepiece 12 is formed so as to allow the instrument to be used in any position without the coil dropping out of its bearings. Two helical springs 19 are provided to lead the current to and from the coil and the weight of the pointer 18 is arranged to counterbalance that of the coil.
Patent GB-784342-A (GB)
Title: Improvements in and relating to electrical systems for motor vehicles
IPC: B60R16/03
Filed: 1955-04-19
Abstract: 784,342. Supply systems for motor vehicles. INNOCENTI, SOC. GENERALE PER L'INDUSTRIA METALLURGICA E MECCANICA. April 19, 1955 [April 22, 1954], No. 11290/55. Drawings to Specification. Class 38 (4). In an electric system for a motor vehicle including a high-tension flywheel ignition generator having an additional low tension A.C. winding working in conjunction with a rectifier, a battery and a multi-position general control switch to supply the lighting and other electrical auxiliaries of the vehicle, batterycharging current is limited during daylight operation of the vehicle by a choke connected between the low tension winding of the generator and the battery, there being an auxiliary winding to the choke which is open-circuited during daylight operation. When the control switch is moved to such a position that the head lamps are brought into operation it causes the auxiliary winding to be short-circuited, thereby reducing the impedance of the choke and allowing charging to continue in spite of the additional load on the generator. The choke may also ensure automatic control of charging current for varying engine speed. Specification 782,824 is referred to.
Patent GB-279526-A (GB)
Title: Process for the utilisation of liquids for effecting transfer of energy or matter or like purposes
IPC: F25B37/00
Filed: 1926-04-30
Abstract: 279,526. Synthetic Ammonia & Nitrates, Ltd., Slade, R. E., Burstall, A. F., and Carey, W. F. April 30, 1926. Gases, treating with liquids.-Turbulent thick films of liquid, produced by allowing the liquid to flow by gravity down pipes or surfaces at a rate not less than 300 c.c.m. per minute per centimetre of periphery of the surface, are employed for absorbing gases in liquids and other purposes. The liquid supplied to an annular chamber 2, Fig. 1, rises over an annular weir around a pipe 1, and the film becomes turbulent when it reaches a level just below the weir. Gas to be cooled flows upwards through the pipe, and partial evaporation of the liquid into the surrounding air facilitates the cooling effect. The weir 5, Fig. 7, may be sloped so that the liquid acquires a velocity normal to the pipe surface. and the chamber, 2 may be closed at the top and supported on a tapered sleeve. 7 on the pipe 1. The liquid may be supplied to the chamber under pressure, in which case the film becomes turbulent in the annulus 6, and baffles may be fitted in the weir chamber. Apparatus for absorbing ammonia gas in water may comprise concentric cylindrical chambers Fig. 3, supplied with internal turbulent films 12, 13, of absorption water or ammonia liquor and external films 14, 15 of cooling-water. The gases flow upwards through the annulus and may be submitted to a scrubbing action in an upward extension of the column. According to the second Provisional Specification the liquid may be distributed down the inside of a pipe by a baffle projecting from the top of the annular liquid chamber into the open end of the pipe.
Patent GB-464959-A (GB)
Title: Improvements in tandem bicycle frames
IPC: B62K3/12
Filed: 1936-04-21
Abstract: 464,959. Tandem &c. bicycles. PRATT, F. H., and BUTLER, C. April 21, 1936, No. 11376. [Class 136 (iii)] In order to reduce the wheel base of tandem and like multiple bicycles provided with a direct drive, the tubular chain stay 1 on the chain-wheel side terminates short of the inner rear chain wheel 2, and is joined to the rear bottom bracket A by a flat solid connecting- piece 3 arranged with its larger dimension vertical, the rear road wheel 4 overlapping the rear chain wheels. The connecting-piece 3 is preferably integral with the bottom bracket A and formed with a lug at its free end for welding into the end of the chain stay 1. The body of the bottom bracket A is curved in at the rear, as shown at 7, to enable the wheel 4 to be as far forward as possible. The sockets 10, 11 for the rear seat tube 8 and the bottom tube 12 are approximately at right-angles to one another, and the lower part of the tube 8 follows the curve of the rear wheel 4 as shown in Fig. 2.
Patent GB-676780-A (GB)
Title: Improvements in flexible joints for pipes carrying internal fluid-pressure
Inventor: FEILDEN GEOFFREY BERTRAM ROBER
IPC: F16L27/08
Filed: 1949-04-29
Abstract: 676,780. Flexible pipe-joints. FEILDEN, G. B, R., and RUSTON & HORNSBY, Ltd. April 27, 1950 [April 29, 1949], No. 11455/49. Class 99 (i) Spring-loaded members, e.g slidable plungers 32 with en larged heads 33, of pivots 19 connecting rigid elements 14 15 attached to pipes 10, 11, bear resiliently on the corrugations of an internal pressureresisting bellows 21 connecting the pipes. The elements, may be directly connected to allow relative angular movement of the pipes in a single plane, or, to an intermediate gimbal ring 18 to allow universal movement of the pipes.
Patent GB-772493-A (GB)
Title: Compositions containing tarnish inhibitors
Inventor: SCOTT ALAN DALTON
IPC: C11D3/32
Filed: 1954-04-21
Abstract: A soapless detergent composition contains, as a tarnish inhibitor, an acyl dicyandiamide of the formula RC(O)NHC(:NH)NHCN, where R is a straight or branched chain, saturated or unsaturated aliphatic hydrocarbon group of from 1 to 17, and preferably 11 to 17, carbon atoms.  Detergents which may be incorporated in the compositions, separately or together, include condensed water-soluble phosphates, such as the ammonium or alkali metal tripoly phosphates, pyrophosphates and polymetaphosphates, or the usual anionic or nonionic synthetic detergents, but not cationic detergents.  In preferred embodiments, lauroyl or myristoyl dicyandiamide is used in amounts from 0.5-5.0 per cent of the tarnish-producing substance, i.e. the phosphate or detergent.  When condensed phosphates and synthetic detergents are employed together, the phosphate may be contained in amounts of from 5-50 per cent of the composition and the detergent may comprise 5-40 per cent.  The remainder may be made up of other builders such as alkali metal sulphates, chlorides, silicates, borates, carbonates, orthophosphates, starch, salts of carboxymethylcellulose, and fluorescent whitening agents.  U.S.A. Specification 2,407,161 is referred to. to.ALSO:An aqueous solution for treating metals, e.g. a detergent solution, contains, as a tarnish inhibitor, an acyl dicyandiamide of the formula RC(o)NHC(:NH)NHCN, where R is a straight or branched chain, saturated or unsaturated aliphatic hydrocarbon group of from 1 to 17, and preferably 11 to 17, carbon atoms. Detergents which may be present in the solutions separately or together, include condensed water-soluble phosphates, such as the ammonium or alkali metal tripolyphosphates, pyrophosphates and polymetaphosphates, or the usual anionic or non-ionic synthetic detergents, but not cationic detergents.  In preferred embodiments, lauroyl or myristoyl dicyandiamide is used in amounts from 0.5-5.0 per cent of the tarnish-producing substance, i.e. the phosphate or detergent.  U.S.A. Specification 2,407,161 is referred to.
Patent GB-863358-A (GB)
Title: Improvements in or relating to gas filters
Inventor: FIELD SYDNEY JAMES
IPC: B01D46/00
Filed: 1956-04-16
Abstract: 863,358. Gravity-separation apparatus. OZONAIR ENGINEERING CO. Ltd. April 16, 1957 [April 16, 1956], No. 11525/56. Addition to 767,231. Class 46. [Also in Groups XII and XXVIII] Oil sludge collecting in a sump 10 Fig. 1 of a gas filter having an element 11 cleaned by passage thereover of oil, as claimed in the parent Specification, is removed therefrom by a worm 13 which discharges to a space between a ramp 22 Fig. 2 and the lower rim of a conveyer belt 19 having projections 21 and which in turn discharges the sludge on to a screen 26 within a container 25. The so filtered oil is returned to the sump through a duct 27. The conveyers 13, 19 are driven from the source of power driving a travelling curtain of cleaning oil 17 as described in said parent Specification (see Group XXVIII).
Patent GB-610701-A (GB)
Title: Improvements in dial indicators
IPC: G01B3/22
Filed: 1946-04-15
Abstract: 610,701. Linear-dimension gauges. STANDARD GAGE CO., Inc. April 15, 1946, No. 11535. Convention date, Jan. 5, 1946. [Classes 106 (ii) and 106 (iv)] A dial indicator having a pointer mounted on a shaft and a backlash eliminating means has the backlash spring fixed at one end to the pointer shaft and at the other end to means rotatable about the pointer shaft to adjust the tension of the backlash spring. The backlash means comprises a spring 19, one end of which is fixed to a collar 18 on the shaft 16, the other end being attached to a pin 20. This pin 20 is fastened to an annular ring 22 which is rotatable in a groove 23 and which may be fixed in its adjusted position by a screw 25.