baber/WOPTO huggingface dataset:
Patent GB-985140-A (GB)
Title: Temperature controlling inserts for ingot moulds
IPC: B22D7/10
Filed: 1963-05-02
Abstract: An exothermic material to create temperatures in excess of 3100 DEG F. comprises the following percentages by weight: FeO 9.5; Fe2O3 35.3; SiO2 2.48; MnO 0.37; CaO 1.4; MgO 2.06; Al 23.48; Al2O3 14.46; CuO 1.20; NaCl 4.75.
Patent GB-1152111-A (GB)
Title: Improvements in or relating to Laundry Machines
IPC: H01H36/00
Filed: 1967-04-17
Abstract: 1,152,111. Control of motors. AMETEK Inc. 17 April, 1967 [21 April, 1966], No. 17445/67. Heading H2J. [Also in Division D1] A laundry machine has a drum with three compartments each of which has a door adapted to be registered with an access opening in an outer casing for loading or unloading the drum. Closure of switch 40 energizes relay R1 through normally-closed contacts of a reed switch RS1, whereby contacts CR1 close for forward operation of the drum-driving motor. A sleeve is also driven by the motor and mounts magnets 34 which co-operate with reed switches RS1, RS2. When the first magnet 34 moves opposite switch RS1, the latter opens to interrupt the motor circuit. The drum continues to coast forwardly until the first magnet moves opposite switch RS2 which now closes to energize relay R2 whose contact CR2-1 establishes a reversing circuit for the motor. At the same time, the second magnet 34 has moved opposite switch RS1 to keep relay R1 de-energized. If the momentum is such that the magnets 34 move beyond switch RS2, contacts CR2-2, CR2-3, provide a holding circuit for the relay R2 and a break for the forward driving circuit. After forward rotation has been arrested and the drum moves in the reverse direction, both relays R1, R2 are de-energized and the drum coasts to a position in which the forwarddriving circuit is re-closed. The hunting cycle is repeated until the drum finally comes to rest with one of the magnets 34 in front of switch RS1 and no magnet in front of switch RS2, thereby opening all power circuits of the motor. The pair of adjacently located magnets may be replaced by a single, elongated, permanent magnet. An electromagnet may be energized only when a switch 40 is actuated to avoid operation of the reed switches during a normal washing operation. Second and third control switches 40 operate respective hunting circuits for the other compartments of the drum.
Patent GB-753711-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G17/20
Filed: 1954-06-14
Abstract: 753,711. Endless-chain conveyers. KING, D. M. May 17, 1955 [June 14, 1954], No. 17459/54. Class 78 (1). In conveyers of the kind wherein an endless driven chain 21 is supported by load forks 20 which depend from trolleys 16 running on a fixed overhead track 22, each trolley comprises a pair of spaced plates 10, 11 formed with recesses 13, 14 to engage hubs 17 on which the rims 18 rotate freely, the plates being retained in engagement with the hubs by the load forks. Each hub has a cruciform recess 19 into the centre of which-the plates 10, 11 are placed before being moved sidewise to engage the recesses with the hub. After the load fork 20 has been placed between the plates, the connecting bolt 15 is passed through central apertures in the plates and between the limbs of the forks. The chain 21 is composed of U- shaped links 25, 27 connected by pins 24. The closed end of the link 25 is cut away to take between the limbs of the fork which are formed with recesses 26 to receive the shoulders formed on the links. The limbs of the link 27 bear on the outside of the limbs of the fork. The pin 24 connecting the limbs 25, 27 also secures them to the forks.
Patent GB-797513-A (GB)
Title: Improvements in and relating to the testing of optical lenses
Inventor: MAURICE REUBEN DARRELL AGRESTI
IPC: G01M11/02
Filed: 1954-06-14
Abstract: 797,513. Testing lenses photo-electrically. BRITISH BROADCASTING CORPORATION. May 31, 1955 [June 14, 1954], No. 17473/54. Class 40 (3). Apparatus for examining the resolution of optical lenses comprises a test chart having one or more bars thereon the width of each bar decreasing progressively in direction parallel to the length of the test chart so as to give a progressive change of grade of detail, means including the lens to be tested for examining an area of the test chart, means for causing relative displacement of the area and the test chart in a direction parallel to the length of the chart, a photoelectric device for receiving at least part of the light from said area and producing signals representative of the intensity variations of the received light and visual display means responsive to these signals so as to produce a display indicative of the resolution of the lens. As shown, the test chart 10 consists of opaque bars on a light transmitting carrier fitted on a rotatable drum 11, which houses a light source 12 and diffusing screen 13. Lens 16 to be tested is positioned in the optical path between source 12 and a photo-multiplier 20, this path including narrow slits 14, 18 defining an area on the test chart 10. The photo-multiplier output is applied to the Y-plates 22, 22a of a C.R.T., the X-plates of which are fed with a signal, representative of the grade of detail being examined, by a variable resistor 25 operated by a motor 28 which also rotates the drum 11. The width of the several spaced opaque bars of which the chart consists decrease linearly or logarithmically in the direction parallel to the longitudinal centre line of the bar, so that, as the drum rotates, the area scanned presents to lens 16 a progressive change of grade of detail. The width of the scanned region of the test pattern is less than the smallest width of any of the test chart zones and the scanned region lies wholly within one of the zones. If a light transmitting zone is being scanned, as long as the lens 16 can resolve the detail, the output of cell 20 is constant. As the detail becomes finer the lens can no longer resolve and the output of the cell decreases until finally the output of the cell becomes constant again at a lower level. The arrangement may be adapted to examine offaxis resolution.
Patent GB-557681-A (GB)
Title: Improvements relating to the punching or perforating of sheet materials
IPC: B21D28/26
Filed: 1942-12-09
Abstract: 557,681. Perforating sheet material. UNITED WIRE WORKS, Ltd., and EWEN I. E. Dec. 9, 1942. No. 17512. [Class 31 (ii)] [Also in Group XXII] Large sheets of non-metallic material to be punched or provided with groups of perforations are mounted in a machine to be punched area by area. The material is supported by rolls 3, 4, mounted in carriages 9 one at each end of each roll and traversable on rails 10, and extends at 7 over a work bed 8, the punches being carried by a head 11 reciprocated by connecting rods 12 and eccentrics 13 on a shaft worm driven at 16 from the shaft of a motor 18. Successive areas are brought over the work bed by winding and unwinding from the rolls and by traversing the carriages on the rails. A strip may be treated either by traversing the carriages or by winding, further strips being exposed by winding or traversing respectively.
Patent GB-920971-A (GB)
Title: Method and apparatus for milling flour
IPC: B02C1/14
Filed: 1959-05-22
Abstract: In milling wheat into flour, clean tempered wheat is subjected to a plurality of operations, comprising breaking, classifying and reduction which are so co-ordinated and controlled that an amount of flour equal to at least half, e.g. two-thirds, of the weight of the original wheat is produced in the first six operations, which may comprise, breaking together with classifying, reduction together with classifying, tailings rebolting, bran dusting and purification of middlings, but not rebolting of the final or clear flour, which may be necessary.  The wheat may be subjected to at least three breaking and six reduction operations.  Breaking and reduction may be effected between hollow rollers cooled by a fluid such as water. Classification may be effected by reciprocating sieves in conjunction with electrostatic separators of the type described in U.S.A. Specification 2,707,556. Different grades of wheat may be milled and the different grades of flour produced therefrom may be blended and chemically treated to yield a final flour.  Specifications 920,972 and 920,973 also are referred to.
Patent GB-785727-A (GB)
Title: Improvements in or relating to the preparation of 1-alkynes
Inventor: TEBBOTH JOHN ARTHUR
IPC: C07C1/30
Filed: 1955-06-17
Abstract: 1-Alkynes are prepared by continuously feeding a 1 : 2-dihaloalkane or a 1- or 2-monohaloalkene into a stirred mixture, heated to a temperature above 100 DEG  C., containing an alkali metal hydroxide or alkoxide of an alcohol boiling above 100 DEG  C., an inert liquid diluent and an alcohol each boiling above 100 DEG  C. and substantially above the boiling-point of the 1-alkyne, the amount of diluent being not more than nine times the total weight of the alcohol present and the alcohol equivalent to the alkoxide present, the rate of addition of halogen compound being such that the temperature of the solution is not substantially lowered during the addition and the amount of halogen compound added being such that the alcohol present is at all times at least 50 per cent saturated with the alkali metal alkoxide, and the 1-alkyne is separated from the vapours released from the mixture. The preferred diluents are hydrocarbons, pure or mixtures, boiling above the preferred operating range of 150-170 DEG  C.  Suitable alcohols are ethoxyethanol, butoxyethanol, ethoxyethoxyethanol and monoethyl ethers of the higher polyoxyethylene glycols.  The released vapours may be passed through a condenser to liquefy all but the alkyne, and the condensate, if desired after removal of water, is returned to the reaction vessel. When operating in this manner, using a 1 : 2-dihaloalkane as starting material, the original halogen compound may be fed into the reaction mixture when there is no longer sufficient alkoxide present to 50 per cent saturate the alcohol provided that the condensate obtained from the vapours is then fed to a fresh reaction mixture containing alcohol which is 50 per cent saturated.  In examples, propyne is prepared from a mixture of 1 : 2-dichloropropane and chloropropylenes using caustic soda, ethoxyethoxyethanol and a commercial gas oil of boiling range 177-300 DEG  C., and from 1 : 2-dichloropropane alone using caustic soda, ethoxyethoxyethoxyethanol and a commercial gas oil of boiling range 177-300 DEG  C.  Specifications 777,141 and 783,629 also are referred to.
Patent GB-1407200-A (GB)
Title: Production of steel
IPC: C21C5/36
Filed: 1972-04-17
Abstract: 1407200 Fluidifier for steelmaking slag BRITISH STEEL CORP 5 Dec 1972 [7 Dec 1971 17 April 1972] 56883/71 and 17626/72 Headings C7D and C7M An additive for the slag in a steel-making furnace comprises a particulate admixture of hydroboracite (CaO.MgO.3B 2 O 3 .6H 2 O), fluorspar, and optionally lime. The fluorspar is present up to 95 per cent of the total weight of the hydroboracite and fluorspar. The additive is suitable for use in basic oxygen furnaces and electric arc furnaces.
Patent GB-1375682-A (GB)
IPC: A01K73/00
Filed: 1973-04-12
Abstract: 1375682 Controlling winches HYDRAULIK BRATTVAAG AS 12 April 1973 [18 April 1972] 17632/73 Heading B8B [Also in Division G3] An hydraulic system for two co-operating trawling winches 10A, 10B for automatically exerting like tensile forces in the wires thereof, comprises for each winch, an hydraulic pump 13A, 13B, a control valve 15A, 15B and an hydraulic motor 12A, 12B for driving the associated winch drum, the system further comprising a control means monitoring the wires so that any externally influenced difference in wire tension controls the winches to balance the tensions in the wires. The control means comprises a manually set pressure limiting valve 40 which through a two way valve 38 exhausts pressure from one side of either of two further pressure limiting valves 23A, 23B associated with each motor 12A, 12B permitting the valve 23A or 23B to directly couple the motor driving pressure line 16A, 16B to the motor return line 17A, 17B to by-pass the appropriate motor. This removal of power to the motor will occur to either, or both motors if an overload is applied to one or both winch wires, the drive being restored when the wire tension drops below a level corresponding to the pressure setting of the valve 40, the motors freewheeling to release the wire tension during this period. When setting the trawling wires 100A, 100B control valves 15A and 15B are at stop, a check valve 50 is opened to connect the input lines 16A, 16B to both motors 12A, 12B, whereby the motors are hydraulically balanced and pay out equal quantities of wire automatically. The valve 40 is set at a low enough value permitting the valves 23A and 23B to open to allow the motors to pay out due to water resistance on the trawl. During the trawl, the valve 40 is set to a value permitting pay out from a winch only upon excessive tension occurring in the wire, the open check valve 50 permitting minor variations in the wire tensions to be equalized. By closing the valve 50 the winches are independently operable. In the embodiment of Fig. 3 (not shown), tension variation between the trawl wires is sensed by pulleys over which the wires run, the pulleys being mounted on hydraulic piston and cylinder units whereby fluid is displaced proportionally to pulley movement to control the pressure limiting valves associated with the winch motors. In the embodiment of Figs. 4 and 5 (not shown), tension signals from the trawl wires are fed to a converter for comparison, and whereupon appropriate signals are sent to the motor control valves to equalize the wire tensions.
Patent GB-1156132-A (GB)
Title: Improvements in Air Grilles for Heating and Ventillation Equipment
IPC: F24F13/075
Filed: 1966-04-22
Abstract: 1,156,132. Making grids. WATERLOO GRILLE CO. (GREAT BRITAIN) Ltd. (Waterloo Register Co.). 24 May, 1967 [22 April, 1966], No. 17675/66. Heading B3A. A ventilator grille comprising blades 9 mounted on rods 11 of square cross-section and having movable guide vanes (8, Fig. 1) behind the vanes is made by assembling the blades at their correct spacing on the rods 11 and twisting the rods so that the blades-which may be of aluminium or aluminium alloy-are jammed permanently in position on the rods. Each blade 9 may be bent by a different amount at opposite ends so that by reversing the grille a different air flow pattern is obtained. An assembly jig for making a plurality of grilles has locating means for the blades 9 and fingers engaging the square rods 11 between the blades. Hydraulic or pneumatic operating means acts on arms connected to the fingers so that the necessary twist is given to the rods between adjacent blades.
Patent GB-826706-A (GB)
Title: Improvements in or relating to the treatment of beer
IPC: C12H1/14
Filed: 1957-06-04
Abstract: The development of haze in beer is prevented, and its foaming improved, by the addition, after fermentation but before finishing by such operations as incorporating more carbon dioxide and finally filtering, of 5 to 25 parts per million by weight of sulphur dioxide in gaseous form.  A montmorillonite clay may be added, preferably before the sulphur dioxide, for adsorbing long-chain proteins; suitable clays are hectorite, bentonite, nontronite, saponite, sepiolite and beidelite.  A proteolytic enzyme, e.g. a bromelin and papain mixture, may be added with the sulphur dioxide.
Patent GB-1378309-A (GB)
Title: Apparatus for contacting a liquid with a vapour
IPC: B01D3/20
Filed: 1972-04-18
Abstract: 1378309 Bubble tray column UNIVERSAL OIL PRODUCTS CO 18 April 1972 17772/72 Heading B1R A column for contacting a liquid with a vapour comprises a plurality of vertically spaced trays 2 at least one of which has a liquid down comer portion 5, an imperforate liquid inlet portion 3, a perforate portion 10 on which rising vapour bubbles through liquid on the tray, a weir 7 separating the liquid inlet portion 3 and the perforate portion 10 and a perforate plate 8 extending from the upper edge of the weir 7 across the perforate portion 10 and preferably parallel thereto. The perforate plate 8 may have a curved leading edge (Fig. 3 not shown). Directional vanes 15 (Fig. 4 not shown) may be formed on the plate 8. The perforate portion 10 may comprise a flat plate with perforations, bubble caps or valve caps.
Patent GB-1469727-A (GB)
Title: Alpha,alpha-disubstituted benzyl alcohols and derivatives thereof
IPC: C07C27/00
Filed: 1975-04-29
Abstract: 1469727 α,α-Disubstituted benzylalcohol and its formate and acetate esters DOW CHEMICAL CO 29 April 1975 [3 May 1974 (2)] 17825/75 Heading C2C  The invention comprises compounds of Formula I wherein X=H, Cl or CH 3 ; n is 0 or 1-3; radicals R, which are in the 3-, 4- or 5-position are independently Br, Cl, F, NO 2 , CF 3 , C 1-3  alkyl or C 1-3  alkoxy; T is H, Z is Br, Cl, I or when T is H, Z is QSO 2 O where Q is C 1-18  alkyl, halo C 1-4  alkyl, benzyl, phenyl, optionally substituted phenyl or benzyl where the substituents are selected from halogen, NO 2  and C 1-4  alkyl or Q is NR<SP>1</SP>R<SP>11</SP> where R<SP>1</SP> and R<SP>2</SP> each is H or C 1-3  alkyl. Compounds in which T is hydrogen and Z is halogen may be prepared by reacting the appropriately substituted styrene with a halogenating agent in the presence of water and a carrier medium or by reacting the compound in which T is other than hydrogen with an alkanol in the presence of acid, compounds in which T is may be prepared by reacting the styrene reagent with (a) a halogenating agent, water and dimethyl formamide and (b) an acetate agent such as silver acetate and a halogenating agent respectively; compounds in which Z is QSO 2 O are obtained by reacting the corresponding phenyl- 2-hydroxy butan-1-ol with the appropriate sulphonyl halide. Herbicidal compositions comprise a compound of Formula I together with a carrier.
Patent GB-1205875-A (GB)
Title: Method of annealing steel coils
Inventor: COSTELLOE PATRICK
IPC: C21D9/663
Filed: 1968-04-16
Abstract: 1,205,875. Annealing coils of steel strip. J. SUMMERS & SONS Ltd. March 14, 1969 [April 16, 1968], No.17840/68. Heading C7N. The coils are formed into vertical stacks, the coils in a stack being separated by aluminiumcoated steel spacers which eliminate sticking difficulties. The spacers may each comprise a number of angularly-spaced plates while each coil may be provided with an aluminium-coated steel strap to prevent axial movement of the turns. The spacers may be formed by compacting a layer of aluminium powder on to a steel substrate and subsequently heating it, for example at 600‹ C., to effect diffusion of the aluminium. After annealing the strip may be temper-rolled.
Patent GB-1507302-A (GB)
Title: Journal bearing
IPC: F16C33/08
Filed: 1975-05-16
Abstract: 1507302 Bearings GLACIER METAL CO Ltd 16 May 1975 [24 April 1974] 17850/74 Heading F2A A bearing shell 6 is axially located in its housing 8 by one or more members 14 located axially relative to the shell or housing and slidingly engaged in circumferential grooves formed in the housing or shell respectively. Location of the bearing shell, 6, is preferably by a circumferentially extending ring 14 or part-ring or a number of part-rings arranged end to end and fitting in a pair of corresponding circumferential grooves one in the housing, one in the shell. The locating member(s) may alternatively comprise one or more keys (16 Fig. 4, not shown) fixed axially and circumferentially in the circumferential groove (12) in the shell or housing.
Patent GB-878602-A (GB)
Title: Flexible connection for pipes
IPC: F16L27/04
Filed: 1960-05-20
Abstract: 878,602. Pipe couplings. BRONZAVIA S.A. May 20, 1960 [May 20, 1959 ; Jan. 28, 1960], No. 17879/60. Class 99(1). In a flexible connection for pipes, Fig. 1, cylindrical end pieces 1, 2 to which the pipes are secured are mounted on a sleeve 3 with interposition of toroidal packing rings 4 located in grooves in the sleeve 3 and a spherical bearing surface 6a and a flange 6b on halfsleeves 6 co-operate respectively with a spherical bearing surface 2b on the end piece 2 and with a shoulder on the end piece 1 so as to limit the spacing of the end pieces, a ring 7 being fitted on the half-sleeves to hold the latter in position. Holes 8 are provided in the ring 7 for the passage of a locking wire 9. In a modification, the sleeve 3 is fixed to a container and a flange on the half-sleeves 6 co-operate with a groove in the periphery of the sleeve. In a further modification, Fig. 3, pipes 11, 12 have expanded end edges 11a, 12a against which bear flanges 13, 15 with which co-operate respectively an end piece 2 and a sleeve 3, recesses being provided in the end piece and sleeve for locating toroidal packing rings 14, 16.
Patent GB-236961-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D1/16
Filed: 1925-07-13
Abstract: 236,961. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). July 12, 1924, [Convention date]. Balancing moving parts.-In turbines comprising an impulse section b or a section working with a slight degree of reaction, and also a reaction section a through which the motive fluid flows in an opposite direction to that in the section b, the total end-thrust is balanced by a suitable enlargement of the stuffing-box diameters within the section b. Thus, the diameter d<2> of the first intermediate stuffing-box is made larger than the diameter d' of the outer stuffing-box e, and the diameter d' is made larger than the diameter d<2>. The diameters decrease again towards the outer stuffing-box g, which may be of the same diameter as the stuffing-box e. Alternatively, the inner stuffing-boxes may have the same diameter, while the box e is given a smaller diameter than the box g. A small thrust bearing may be added to take up thrust due to varying load.