baber/WOPTO huggingface dataset:
Patent GB-494183-A (GB)
Title: Improvements in the manufacture and production of aminoquinaldines
IPC: C07D215/40
Filed: 1937-05-31
Abstract: 8-Aminoquinaldine and its nuclear substitution products are obtained by heating 8-hydroxyquinaldine or its ethers or esters, or the substitution products of any of these compounds, with ammonia (or a reagent which yields ammonia) at about 150-220 DEG  C. in the presence of a sulphite or bisulphite or in the absence of oxygen or a gas containing oxygen.  In the examples: (1) 8-hydroxyquinaldine is heated with ammonia and aqueous sodium bisulphite solution to yield 8-aminoquinaldine; (2) 8 - methoxyquinaldine and 8 - acetoxyquinaldine are treated as in example 1 to yield 8-aminoquinaldine; (3) 8-hydroxyquinaldine is heated with urea in an atmosphere of nitrogen; 8 - aminoquinaldine is again obtained; (4) 8 - hydroxy - 5 - methylquinaldine is treated as in example 1 to yield 8-amino-5-methylquinaldine. Specification 395,063 is referred to.
Patent GB-720618-A (GB)
Title: Improvements in or relating to fluid-metering devices
Inventor: SHERLOCK JOHN EDWARD
IPC: F16K31/524
Filed: 1952-06-16
Abstract: 720,618. Valves. BRITISH THERMOSTAT CO., Ltd. June 16, 1953, [June 16, 1952], No. 15113/52. Class 135. A fluid metering device having independently adjustable means for establishing the limits of movement of a valve closure member 1 comprises a lever 16 pivoted at 18 and having a bifurcated end 19 engaging the lower side of a collar 13 to raise the closure member against a loading spring 12 and an arm 17 for engagement by a rotatable snail cam 20 to operate the lever. To determine the limit of opening of the valve the cam is axially adjustable along a hollow actuating spindle by a screw 27 opposed by a spring 28. The limit for the closed position is set by an adjustable abutment screw 30 which coacts with a spring arm 29 on the lever 16. To close the valve completely a recess 34 in the cam is moved into engagement with the arm 17 to move the lever 16 against the resistance of the spring arm 29. The valve member 1 consists of a tubular element with a metering slot 6 coacting with a fixed sleeve 7 and having an enlargement 9 to coact with a seat 8 in the fully closed position.
Patent GB-440544-A (GB)
Title: Apparatus for finishing hollow articles produced directly from paper pulp
IPC: D21J5/00
Filed: 1935-05-24
Abstract: 440,544. Finishing moulded pulp articles. MARGUERAT, R., and CHEVRIER, M., 7, Rue Carves, Montrouge, Seine, France. May 24, 1935, No. 15163. [Class 87 (ii)] Hollow articles produced from paper pulp are finished in an apparatus comprising an expansible water-bag 13 adapted to be positioned within the article 1 in a mould 2, and a cylinder system 15 arranged adjacent the water-bag and having a piston 17 adapted to force water into the bag, the whole assembly being placed between the platens 10, 11 of a hydraulic press. The upper edge of the water-bag is clamped between a ring 5 and the cylinder 15. In operation, when the platen 10 is depressed, the ring 5 rolls over the edge of the pot 1 and the piston 17 then descends and expands the bag 13 against the article to calender it against the mould. When the pressure is released the spring 19 returns the plunger 17. A number of moulds may be operated simultaneously. Specification 440,543 is referred to.
Patent GB-1170251-A (GB)
Title: Improved Gasket.
Inventor: BAILEY FRANCIS ROBERT
IPC: F16J15/12
Filed: 1966-04-05
Abstract: 1,170,251. Joint-making packing. RICHARD KLINGER Ltd. 16 June, 1967 [5 April, 1966], No. 15168/66. Heading F2B. A gasket comprises a sheet 2 of compressed asbestos fibre having an opening 4 therein surrounded by a U-section metal ring 6 overlapping the edges of the sheet and housing a channel-section resilient member 12 in the space 8 between the edge of the sheet and the bottom 10 of the U. A cylinder head gasket is shown clamped between the cylinder block 14 and the head 16. The resilient member may be of U-section as shown in Fig. 1, or of arcuate or C-section and two members, as in Fig. 5, may be located in the space 8. The ring 6 may be of copper or stainless steel alloy.
Patent GB-218644-A (GB)
Title: Method of making wort
IPC: B02C19/00
Filed: 1924-06-24
Abstract: 218,644. Aktiebolaget Separator, (Assignees of Landtblom, F. 0.). July 5, 1923, [Convention date]. Mashing-processes.-Malt is freed from hulls by polishing &c., crushed, sifted, if necessary, from the remains of the hulls and mashed in the ordinary way. The wort is then freed from solids in a centrifugal, with or without preliminary filtration.
Patent GB-766678-A (GB)
Title: Improvements in or relating to extensible lifting handles
IPC: A47L9/32
Filed: 1954-05-24
Abstract: 766,678. Handles. PATCHETT, G. W. April 1, 1955 [May 24, 1954], No. 15292/54. Class 61 A lifting handle for a vacuum cleaner comprises a collapsible pivoted linkage connected at one end to the cleaner and having connected to the other end a hand grip, yielding detent means being provided for holding the linkage in extended position which means are arranged to yield when a jerk is applied downwardly to the handle. As shown, the hand grip 10 has pivoted to each end thereof a link system 17, each system 17 being pivoted to a link system 24 attached by pivot pins 29 to the casing of the cleaner. Each link system is made up of a pair of links each comprising three strips riveted together, one pair of link systems 17, 24 extending between. and sliding on the other pair. The pivotal connection of the two link systems 17, 24 which pass between the links of the other two link systems 17, 24 comprises a hollow hub 38, Fig. 5 in which is housed a pair of spring loaded balls 41 which project from each end of the hub and are engageable in a recess at the end of each pivot pin 35 connecting the ends of the links of the other two link systems 17, 24. The linkage is secured in collapsed position by a hooked end 46 of a lever 47 pivoted at 29 to the casing of the cleaner, the hook 46 engaging a projection 43 on the hand grip. The projection 45 of a lever 44 on the handle engages a ledge 48 of a block 31 secured to casing. Disengagement is effected by a press button 50 normally spring pressed outwardly and mounted on the hand grip, the lever 47 having pivoted thereto a rod 49 which is brought into engagement with the lever 44 when the hook 46 is being disengaged from the projection 43. In a modification the hand grip is pivoted to the ends of two levers pivoted within a housing-in the casing the distance apart of the pivot pins being the same as the distance apart of the handle pivots.
Patent GB-895665-A (GB)
Title: Improvements in or relating to change-speed gears
IPC: F16H37/00
Filed: 1960-05-02
Abstract: 895,665. Change-speed gear. DEERELANZ A.G., JOHN. May 2, 1960 [April 30, 1959], No. 15341/60. Class 80 (2). [Also in Groups XXXI and XXXIV] The engine shaft 8, Fig. 1, of an agricultural vehicle drives through a torsionally resilient coupling 7 to the primary shaft 6 of hydraulically or pneumatically-controlled expanding-pulley gearing 3 . . . 5 driving a shaft 9 and a clutch 10 geared to the input shaft 13 of a sliding-mesh change-speed gear 2 having a driven shaft 15 coaxial with the primary shaft of the expanding- pulley gearing, a housing 25 fast with the side of the gear case 1 carrying a bearing support 27 in which is journalled the inner end of the driven change-speed gear shaft 15 and ducts 41, 42, Figs. 2, 3, in the bearing support, transmitting fluid under pressure to control means effecting adjustment of the separation of the flanges of the driving expanding-pulley 3. The housing 25 fast with the side wall of the gear case 1 is formed with a circular aperture 26 receiving a similarly-shaped bearing support 27 held in position by ring clips 28, and formed with an inner circular recess within which a needle roller bearing 33 is retained by ring clips 32. An aperture 36 at the inner end of the body 27 receives oil splashed by the gear wheels to lubricate the bearing 33. The bearing support 27 is prevented from rotating by a lock pin 29. The duet 42 supplying pressure fluid to the expanding pulley 3 is attached by a sleeve-like connector 47 to a hollow bush 43 formed with projections 50 engaging a radial notch 51 in the bearing support 27, so that it is prevented from rotating. A gear 21 fast with the inner end of the primary shaft 6 of the expanding-pulley gearing is mounted fast with a bush 23 which rotates relatively to the hollow bush 43. Control of the separation of the flanges of the driven expanding pulley 4 is effected by pressure fluid admitted through a pipe 39. In a modification, wherein the gear case 1 is divided down a medial plane into two half-sections, the non-rotary support 56, Fig. 4, for the bearing journalling the inboard end of the driven change-speed gearshaft 15 lies between two sections 53, 54 of the gear case and is formed with axial and radial ducts 59, 58 for the transmission of oil &c. under pressure to the expanding-pulley 3. A lockring 63 in a recess and a connecting tube allow the passage of oil &c. from an external pipe 61.
Patent GB-1212348-A (GB)
Title: Improvements relating to insulation testing
Inventor: TAGG GEORGE FRANK
IPC: G01R27/02
Filed: 1967-04-04
Abstract: 1,212,348. Measuring insulation resistance. EVERSHED & VIGNOLES Ltd. March 20, 1968 [April 4, 1967], No. 15342/67. Heading G1U. In an instrument for measuring insulation resistance Rx, there is provided a supply transformer 2 with secondary windings 3, 4, each having a rectifier 5, 6 connected across it, the rectifier 5 supplying output terminals 11, 12 for connection to Rx by way of a resistor Rd which is small in relation to the insulation resistance to be measured. The other rectifier 6 supplies a balancing circuit incorporating a resistor R5 in series with a much lower adjustable resistor Rm, connected in parallel with the small resistor Rd. Rm is adjusted so that the voltage drop across it balances that across Rd caused by the flow of test current to the insulation resistance, balance being indicated by galvanometer G. The adjustable resistor is calibrated inversely so that insulation resistance may be read from it directly. The adjustable resistor Rm is constructed as a conductance box with three banks of resistors arranged in parallel, each bank corresponding to a decade.
Patent GB-416359-A (GB)
Title: Improvements in or connected with devices comprising two tubular sleeves which are connected and are relatively movable endwise
IPC: G02B5/00
Filed: 1933-05-27
Abstract: 416,359. Extensible sleeve devices; lens hoods. BARR & STROUD, Ltd., and MACGILL, C. D., Caxton Street, Anniesland, Glasgow. May 27, 1933, No. 15344. [Classes 97 (i) and 98 (i).] In a device comprising two coaxial sleeves connected together and relatively movable along their axis, the connection consists of resilient links each jointed to both the sleeves in such a way that with one sleeve held stationary, the other being fully extended, combined axial and rotary movement of the second sleeve causes each link to turn about its joints and in so doing to be bent so as to approach a condition of curvature conforming to that of the sleeves. As shown the external diameter of the sleeve A is less than the internal diameter of the sleeve B and the links C, of approximately rectangular form are connected externally to the sleeve A and internally to the sleeve B by pivots 2 lying approximately at the ends of a diagonal of each link. The pivots extend radially from the sleeves and, on each sleeve, the pivots lie on a circle at right-angles to the axis of the sleeve. By turning the sleeve B and moving it towards the sleeve A, the links are bent and when the sleeves are completely closed together the links lie between them as shown in Fig. 3, the sleeves extending axially from the pivots sufficiently to enclose the links completely when in this position. The links may be either flat or curved in cross-section. The device may be attached to the light-receiving end of a telescope D to act as a sun or weather shield, or it may be used as a lens hood on a camera.
Patent GB-685788-A (GB)
Title: Improvements in or relating to apparatus for playing table games
IPC: A63F7/22
Filed: 1950-06-20
Abstract: 685,788. Table games. TOOGOOD & JONES, Ltd., and JONES, E. D. June 11, 1951. [June 20, 1950]. No. 15367/50. Class 132 (ii). A fieldsman piece, for table games representing cricket such as that described in Specification 650,677, comprises a ring- like annular base 1 carrying a figure 6 and having part of the ring reduced in height to form a low wall 3, 4 over which a ball can roll into the centre pocket 5.
Patent GB-818939-A (GB)
Title: Improvements in and relating to earth boring and lining apparatus
IPC: E21B7/20
Filed: 1957-05-15
Abstract: 818,939. Earth-forming apparatus. DESVAUX, J., and BERTHET, F. May 15, 1957 [May 16, 1956], No. 15477/57. Class 85 A single driving device 13, 14 for a drilling member 11 and a tubing 12 is selectively adapted to be coupled thereto by couplings 15, 16 which consist of inflatable members housed in helical grooves in the member 14. In a modification, Fig. 2 (not shown), the drive is transmitted to a cutting drum having pivoted knives and hinged flaps through a drive as disclosed in Specifications 801,081 [Group XXIX] 779,227 or 687,603 whilst the tubing is driven through an inflatable coupling.
Patent GB-842313-A (GB)
Title: Improvements in lubricating systems
IPC: F16N25/02
Filed: 1956-05-18
Abstract: 842,313. Force-feed lubricating. TRAVIS, R. W. April 30, 1957 [May 18, 1956], No. 15517/56. Class 12 (3). A lubricant feeder comprises a body 4 housing a control piston 10, disposed in a bore 9 the ends of which are in communication with two feed pipes 7, 8 through which lubricant under pressure is alternately supplied, and a metering piston 13, disposed in a bore 12 the ends of which are put alternately into communication with a feed pipe 7, 8 or discharge port 15, 16 through conduits 14 according to the position of the control piston 10. As shown in Fig. 1, both pistons are in their lower positions and the cylinders 9, 12 are in communication with feed pipe 7. On reversal of the lubricant supply, lubricant from the feed pipe 8 moves the pistons 10, 13 upwardly, forcing lubricant disposed above the piston 13 to be discharged through port 15. On reversal of the supply again, lubricant from below the piston 13 is discharged through port 16. A projection 19 on the piston 13 engages an adjustable screwed abutment 23 on a cap 20 so that the quantity of lubricant discharged may be regulated. The cap 20 contains a slot 22 through which the movement of the projection 19 may be seen thereby giving visual indication of the operation of the lubricator.
Patent GB-168976-A (GB)
Title: Improvements in or relating to cleats for securing hatch covers and the like
IPC: B63B19/24
Filed: 1920-06-09
Abstract: 168,976. Aitken, A. June 9, 1920. Hatch fastenings.-A cleat for securing hatch covers comprises a wedge or cam having a support on the hatch coaming or attached member and adapted to be moved into and out of position through an angle in a vertical plane in which it acts and at right angles to the coaming, the cam or wedge having one surface bearing on the cover or batten and an abutment directly and centrally behind this surface. A batten c, Fig. 1, along the cover b of the hatch a is held by a steel cam d supported at e on a brake f. When a wedge d, Fig. 2, is used, it moves in a hole n in the bracket f. The wedge is pulled into operative position and retained in the bracket in the inoperative position by a ring p. In a modification, the bottom of the wedge is formed with an enlargement and the ring dispensed with.
Patent GB-808280-A (GB)
Title: Fluid pressure control mechanism, particularly for hydraulic brakes
Inventor: HODKINSON HAROLD
IPC: B60T13/16
Filed: 1955-06-01
Abstract: 808,280. Hydraulic brakes. DUNLOP RUBBER CO. Ltd. May 28, 1956 [June 1, 1955], No. 15675/55. Class 103 (1). A master cylinder for hydraulic brakes comprises a manually operated plunger 5 which on its initial movement to the right into sleeve 7, throttles the flow of liquid from inlet connection 12 in communication with a pump, not shown, the pump pressure thus reacting on the operator as " feel " and being transmitted directly to the brakes past open valve 19, conduit 18 in piston 14 and connection 3. Further movement to the right of plunger 5 closes valve 19 on its seat, so that the pressure reacts through piston 14 upon liquid to the right thereof in communication with the brakes. If the pressure pump should fail to operate, on further movement still of plunger 5 to the right, the brakes may be operated by direct mechanical thrust from plunger 5 through stem 21, valve 19 and piston 14. The passage 17 acts as a guide for the extension 16 of piston 14. A further embodiment is described having two outlet connections for pressure fluid suitable for connection to the front and rear wheels brakes of a vehicle.
Patent GB-1211796-A (GB)
Title: Improvements in wire drawing benches
Inventor: BRINKEBORN BERTRAM
IPC: H02P5/50
Filed: 1968-04-02
Abstract: 1,211,796. Automatic speed control. ALLM€NNA SVENSKA ELEKTRISKA A. B. April 2, 1968 [April 3, 1967], No.15685/68. Heading G3R. [Also in Division H2] In a wire-drawing bench, the blocks are each driven by motors M1-M7 whose armatures are supplied from transductor-controlled rectifiers 11-17, the field windings 31-37 being supplied from a common transductor-controlled rectifier 5. Each motor has a tachometer generator TG connected through switch 81-87 to a comparator associated with an amplifier 7 for controlling the rectifiers 11-17. A motor-driven reference potentiometer 10 and a manually-adjusted reference potentiometer 9 are connected to the comparator and to the rectifier 5. When the wire is first drawn in, the switch 81 is closed and all the other switches 82-87 are open, so that the signal derived from the tachometer generator associated with the motor M1 is used to control all the motors, the motors M2-M7 also being subjected to currentcontrol. The wire is then drawn over the second block which is driven by the motor M2, the switch 82 only being closed, and so on, until the motor M7 becomes the master machine. At speeds below a basic value, the potentiometer 9 supplies such a signal to the rectifier 5 that the field windings 31-37 are fully excited. When the potentiometer 9 is further adjusted to increase the speed above the basic value, the field excitation is reduced. During continuous operation of the bench, the motor M7, which has the highest speed, is normally chosen to be the master machine. The rectifiers 11-17 may be replaced by thyristors.
Patent GB-277746-A (GB)
Title: Improvements in or relating to gas and oil power plant
IPC: F02M21/00
Filed: 1926-06-22
Abstract: 277,746. Bailey, R. W., and Metropolitan-Vickers Electrical Co., Ltd. June 22, 1926. Exhaust, cooling, and dealing with; valve. chests, cooling.-In a power plant comprising a combustion cylinder in which gas or oil is burnt for the production of motive fluid, and a prime mover in which the motive fluid performs work, the motive fluid from the combustion cylinder is conducted to the prime mover by a conduit which is double-walled over substantially its whole length, and between the walls is circulated compressed air or gas at a similar pressure but lower temperature, the compressed air being subsequently employed in a prime mover. The plant may be similar to those described in Specifications 232,278, 244,215 and 245,541, the combustion cylinders driving a compressor which supplies the compressed air or gas and may also supply scavenging air to the cylinder. The exhaust-valve chamber 1 of the combustion cylinder is provided with a sleeve 7 and an extension 10, around which flows compressed air from one or more inlets 11. The air passes through apertures 12, 13, 15 and grooves 14 to mix with the combustion products escaping through the exhaust valve, and serves to cool the valve seat 9, stem 4, and guide 3. As the sleeve 7 and extension 10 are subject to similar pressures on both sides, they may be constructed of refractory material or of one or more, metal layers coated or lined with refractory or heat-insulating material. The combustion cylinders may be provided with jackets supplied with compressed air, and the compressed air may be first utilized to abstract heat from the exhaust or other parts of the prime mover component or from cylinder head jackets on the combustion component. The conduit through which the combustion products flow from the sleeve 7, 10 to the prime mover is jacketed as shown in Fig. 2. Each section of the conduit comprises an outer wall 20 taking the fluid pressure and an inner wall 21 serving as a heat insulator, compressed air being admitted through inlets 23 to the jacket space and through ports 24, 25 in the inner wall to mix with the combustion products. The inner wall 21 is flanged at 22 to make a gas-tight joint with the end flanges of the outer walls and is free to expand longitudinally at the other end with variations of temperature. The Provisional Specification states also that an air jacket on the combustion cylinder head, through which the compressed air passes, may be ribbed on the mterior face of the wall nearest the piston to increase the heat taken up by the compressed air; and to reduce the heat taken up by the wall of the jacket adjoining the cylinder head, the wall may be lagged with a poor conductor. The jacket may also be heat-insulated from the cylinder head. Specification 277,924 is referred to.
Patent GB-150127-A (GB)
Title: An improved apparatus for the fixation of nitrogen
IPC: C01C3/00
Filed: 1919-06-23
Abstract: 150,127. Marks, E. C. R., (Nitrogen Products Co.). June 23, 1919. Alkali cyanides.-In the production of cyanides by a process such as that described in Specification 13332/14, in which briquets are fed down a vertical retort, clogging of the charge is prevented by making an abrupt increase in the diameter of the retort at a point below the heating zone where the charge becomes tacky. The retort may be made of telescopic sections 4, 3, 5, the heating section 3 being preferably of a refractory alloy such as an iron-nickel or an iron-chromiumnickel-manganese alloy and provided with a flange 6 to support its weight. The retort is removable from the furnace, the brickwork 7 being removable, and is bolted to a receiving and conveying apparatus 10, the joint being packed with kieselguhr or the like 12.
Patent GB-240532-A (GB)
Title: Improvements in or relating to kinematograph or like films and the manufacture or treatment thereof
IPC: G03D15/00
Filed: 1924-07-01
Abstract: 240,532. Jeapes, W. C. July 1, 1924. Kinematograph picture films.-A film of the kind having thickened margins to protect the picture portions from scratching &c. is produced by the application of liquid coatings to the margins of a film of uniform thickness. In the form shown, the perforated margins of the emulsion side 11 of the film have a thickening coating 14, formed by applying a solution of celluloid in alcohol, negative varnish, or shellac varnish, and the film is subsequently coated over its whole face with a protective coating 15, Alternatively, or in addition, a thickening coating may be applied upon one or both margins on the celluloid face of the film.