baber/WOPTO huggingface dataset:
Patent GB-634052-A (GB)
Title: Improvements in or relating to covers for cooking stoves or the like
IPC: F24C15/12
Filed: 1948-03-20
Abstract: 634,052. Hot-plate lids and plate racks. WELD ALL & ASSEMBLY, Ltd., and WILKINSON, V. A. March 20, 1948, 8330. [Class 126] Means for holding hinged hot-plate covers in raised position comprises a plate rack movably mounted on a hot plate cover, a catch member movably mounted on a stationary frame and means operated by the plate rack for moving the catch member into engagement with a catch engaging member movable with the cover to support it in raised position. A hot plate cover 1 hinged about a pivot 4 carries a quadrant-shaped catch engaging member 3 which holds the cover plate in vertical position when it bears against an L-shaped catch 5 pivoted about an axis 6 to a stationary frame 4a of the cooker. A spring 8 attached to one end of the catch 5 tends to pull it out of operative position. When the plate, rack 9 is raised to operative position a slide bar 14, at the side of the cover and mounted at one end on a pivot pin 10 of the plate rack 9, is lowered to bear against a vertical pin 7 on the catch 5 holding the latter in operative position. The plate rack 9 is held in raised position by L-shaped locking levers 17 mounted on pivots 18 at each front comer of the cover 1 on the inside. One end 17a of each locking lever 17 presses on the upper ends of the slide bars 14 when depressed. Unlocking may be effected by moving a sliding member 15 placed over the inner ends of the locking levers 17 and having oblique slots 20 which engage with pins 19 on the locking levers 17 against the action of a tension spring 16 one end of which is fixed to a pivot 18 and the other to the sliding member 15.
Patent GB-641948-A (GB)
Title: Improvements in or relating to push-pull circuit-arrangements
IPC: H03F1/54
Filed: 1947-03-27
Abstract: 641,948. Valve circuits. PHILIPS LAMPS, Ltd. March 27, 1947, No. 8339. Convention date, March 30, 1946. [Class 40 (v)] To equalize the anode currents of two valves connected in push-pull the direct voltages developed across resistors 17<SP>1</SP>, 17<SP>11</SP> connected in series with the anode coils 13<SP>1</SP>, 13<SP>11</SP> of each valve are applied through potentiometers 18<SP>1</SP> and 18<SP>11</SP> and portions 9<SP>1</SP> and 9" of the input coils to the corresponding control grids.
Patent GB-362804-A (GB)
Title: Improvements in and relating to parachute packs
IPC: B64D17/52
Filed: 1931-03-18
Abstract: 362,804. Pack parachutes. SWITLIK, S., Broad Street, New Jersey, U.S.A. March 18, 1931, No. 8352. [Class 4.] A parachute pack of the kind in which a container comprising flexible material releasably encloses the parachute in a watertight manner, comprises a periphery of fixed contour, a panel connected thereto forming a base, and a flexible cover constituting the pilot parachute and adapted to be arranged over and to house the main parachute. In one form, a frame 1, Fig. 1, is formed of two rings 3c, Fig. 10, of wood between which is secured a base member 2 of waterproof material to which are secured harness straps 3a. The main parachute is placed on the base and the pilot parachute on top of the main parachute in such a manner that its canopy forms a cover. The pilot parachute 7, Fig. 4, is of waterproof material and comprises a central portion of the same shape as the frame 1 and an annular skirt 11 which is attached thereto in such a manner that a continuous flap 12, Fig. 5, is left. On the inner side of the centre portion are mounted springs 8, 9 which are flexed when the parachute is placed in position and serve to open it on release. The shroud lines and skirt 11 are packed under the main portion of the pilot parachute above the main parachute and the flap portion 12 is connected to the periphery of the base member 1, thus closing the container, by being clamped in an annular groove 3, Fig. 10, by means of a cable 13. The fastening means for cable 13 comprise a slotted plate 15, Fig. 8, pivotally connected to one end of the cable and an arm 17 which is attached to the other end of the cable and is passed through a slot in plate 15 and secured by a slip pin 19 connected to the ripping cord. The end of plate 15 remote from the slip pin is formed with a hook 19a which is inserted into a coupling 16a on the cable 13 by means of a tool 17a having a hooked end 17c. The tool is passed through the slot in plate 15, is engaged with loop 16a and is then levered into the position shown. A spring-tensioned pin 19h retains the hook 19a and loop 16a in engagement. Release of the parachute is effected by withdrawing the pin 19 either by means of the rip cord shown or by a static lanyard. In a modification, Fig. 12, the frame 1 is of heavy wire 4b and the base panel 2a is fastened over the frame as shown at 2b and secured at 2c.
Patent GB-368994-A (GB)
Title: Improvements in and relating to electric heaters
IPC: H01H71/74
Filed: 1931-03-18
Abstract: 368,994. Electrically-tripped switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Chapman, C. H. ; 216, Glen Avenue, Scotia, New York, U.S.A.) March 18, 1931, No. 8355. Convention date, March 18, 1930. [Class 38 (v).]. An electric heater for a thermal tripping relay of the bimetallic type, the heater being readily removable and providing overload protection on small current valves, comprises channel - shaped metallic terminals 26, 27, carrying notched insulating supporting strips 28, the heater wire 31 being secured to bent-over clips 32, 33 on the terminals. The thermal element 15 is located within the heater coil and the heater is attached to supports 12, 13 on the switch base 11. The end of the thermal element engages a trip lever 16 which is released to open contacts 21, 22. Specification 363,247 is referred to.
Patent GB-1383634-A (GB)
Title: Solenoid valves
IPC: F16K31/06
Filed: 1973-02-21
Abstract: 1383634 Valves ROBERT BOSCH GmbH 21 Feb 1973 [22 Feb 1972] 8422/73 Heading F2V In a solenoid operated valve having a captive ball closure member 12, the ball ispre-centred on its seat by the co-operation of the rim 11<SP>1</SP>, of the bell-like end 11 of the operating stem 8, with the extension 18 of the seat member 17. The stem 8 is free to rock in the sleeve 10. The valve is normally biased by the spring 15 to an open position; in an alternative embodiment the valve is biased to a closed position. In a further embodiment the end of the valve stem is guided inside a cup-like extension of the valve seat. In a yet further embodiment the stem may be pivoted to the sleeve.
Patent GB-564215-A (GB)
Title: Improvements in and relating to flexible couplings, flexible mountings, and the like
IPC: F16D3/76
Filed: 1942-09-01
Abstract: 564,215. Flexible couplings. METALASTIK, Ltd., and GOLDSCHMIDT, M. Sept. 1, 1942, No. 8477/44. Divided out of 562,171. [Classes 80 (ii) and 80 (iv)] In a reversible shaft coupling having concave faces e on one member b connected to convex faces d on the other member a by rubber c bonded thereto, the profile of both faces d, e are generated by circular arcs of the same radius having centres d<1>, e<1> on a circle concentric to the axis of rotation z. The invention may be applied to engine or other mountings required to take torque reactions in both directions.
Patent GB-1390313-A (GB)
Title: Device for stretching a sheet or strip of material
IPC: A24B5/14
Filed: 1973-02-21
Abstract: 1390313 Flattening tobacco leaves AMF INC 21 Feb 1973 [10 March 1972] 8543/73 Heading A2C Tobacco leaves, or parts of tobacco leaves such as half leaves, are smoothed by feeding them to the surface of a foraminous member moveable along a path, to which member they are then held by suction while the member moves from a portion of its path of a first width to a portion of a second greater width thus stretching the leaves held thereto. In one embodiment (Figs. 1 to 5 not shown), the foraminous member comprises a cylindrical perforated rubber sleeve mounted by its edges between two opposed support members which are driven about axes inclined to each other so that the sleeve is stretched between a first width and a second, larger width and back to the first width during each revolution thereof. Suction is applied to the underside of the sleeve during the width increasing half of its rotation. The stretched leaves are removed from the sleeve by a suction conveyer at a point closer to the second, larger width of the sleeve than the point thereon where they were transferred thereto. In another embodiment, Fig. 6, the foraminous member comprises a foraminous, stretchable belt 138 mounted as shown over two rollers 142, 142A of different widths. The edges of the belt 138 are shaped to have rim or edge projections which engage rails 140. A suction chamber (139) underlies the upper run of the belt 138. In yet another embodiment, Fig. 9, a pair of suitably angled, suction backed, metal rollers serve as the foraminous member.
Patent GB-701928-A (GB)
Title: Improvements in or relating to a vibrating conveyor
IPC: B65G27/30
Filed: 1951-04-13
Abstract: 701,928. Vibrating conveyers. STEPHENSADAMSON MANUFACTURING CO. April 13, 1951 [May 24, 1950], No. 8647/51. Class 78 (1) A vibrating conveyer includes a balancing element 11 spaced from a conveyer tray 10, levers 12 connecting the tray and the balancing element and pivoted thereto at separated points and fulcrummed between said points, and helical spring means 16 connecting the tray and element. As shown (Fig. 2) conveyer tray 10, driven from motor 21 through eccentric 19 at link 17, is spaced from its counterbalance 11 (which may be another conveyer tray) by links 12 pivoted at rubbered pivots 13 to supports 14, and is connected thereto by springs 16 so that the whole oscillates with harmonic motion. Each spring 16 (Fig. 4) is positioned by rubber blocks 40 secured by plates 41 and bolts 43 to the end plates 48.
Patent GB-195633-A (GB)
Title: Improvements in or relating to recording and indicating instruments, particularly applicable to navigation
Filed: 1923-03-27
Abstract: 195,633. Sperry Gyroscope Co., (Assignees of Sperry, E. A.). March 29, 1922, [Convention date]. Sounding-apparatus.-A shoal-water indicator depending upon the ratio of the speed of the ship to the revolutions of the engine is incorporated in an instrument for indicating and recording the compass bearing, speed and mileage &c. A repeater motor 200 operated from the propeller shaft drives through gear a screw shaft 203 upon which moves a collar 204 which is driven by a friction disc 211 which itself is driven by a chain 145 from a constant speed motor 81, so as to move in the opposite direction along the screw 203. The collar 204 is carried in a pivoted yoke 205 the movement of which is transmitted through quadrant and pinion 206, 207 to the spindle 208 of a pointer moving over a scale of revolutions per minute. A cam 216 on the spindle 208 and a cam 215 on the shaft 149 are adapted to rock links 218, 217, Fig. 15. The link 217 is connected bv link 221 to one end of a link 224 the other end of which is connected by links 225, 226 to the link 218. The link 224 is pivoted to one arm of a bell-crank pivoted at 225, the other arm 226 of which carries a contact 228. When the deep-water ratio of the speeds of ship and propeller is altered, the link 224 moves upward and the contact 228 moves to the left to engage contact 229 when a shoal water alarm is sounded. Adjustments are provided to compensate for different ships and different conditions in the same ship.
Patent GB-666167-A (GB)
Title: Separation of isomeric organic compounds by extractive distillation
IPC: C07D333/08
Filed: 1949-03-31
Abstract: The components of a mixture of isomeric alkyl aromatic hydrocarbons or of isomeric alkylated pyridines or thiophenes are separated by extractively distilling the mixture in the presence of a liquid Friedel-Crafts type metal halide which has a higher boiling point than the components of the mixture undergoing separation, which does not cause substantial isomerisation of the individual aromatic or heterocyclic compounds and which is readily recoverable therefrom. The process may be applied to the separation of isomeric C8H10 aromatic hydrocarbons, of methyl ethyl benzenes, of trimethyl benzenes, of diethyl benzenes, of  - and b -methyl naphthalene, of dimethylnaphthalenes, of 3-and 4-methyl pyridines, of 2, 4- and 2, 5- or 3, 4-lutidine, and of 2- and 3-methyl thiophene.  Suitable solvents are antimony trichloride, antimony tribromide, arsenic trichloride, arsenic tribromide, arsenic pentafluoride, aluminium bromide, aluminium chloride, and mixtures thereof.  The extractive distillation is preferably executed in a continuous manner, the mixture to be separated being continuously introduced into the column at a point below the solvent feed.  In this operation, instead of heating the solution of the extracted component at the base of the column to supply the vapour to partially strip the descending fat solvent, a portion of the overload vapour produced during the regeneration of the solvent and the recovery of the dissolved component may be returned to the base of the extractive distillation column as a "bottoms reflux" The conditions which are maintained in the column are preferably selected to ensure that only a single liquid phase is present therein.  This is achieved for a given ratio of flow of feed and solvent, by adjusting the heat supplied to the column by means of the feed, bottoms reflux and/or bottoms kettle, in combination with the overhead reflux cooling.  The specification gives experimental data for the separation of ethyl benzene and p-xylene, of ethyl benzene and m-xylene, and of m- and o-xylene, using antimony trichloride as solvent.  The separation of ethyl benzene and p-xylene is advantageously carried out at a pressure below 200 millimetres of mercury.  A small proportion of water, preferably not over 5 per cent by weight, may advantageously be added to the solvent.
Patent GB-1067812-A (GB)
Title: Multiple-compartmented passive ship stabilizer
IPC: B63B39/03
Filed: 1965-03-02
Abstract: 1,067,812. Stabilizing ships. J. J. McMULLEN ASSOCIATES Inc. March 2, 1965 [March 6, 1964], No. 8929/65. Heading B7M. In a passive stabilizing tank (20), Fig. 6 (not shown), having four rows of baffles IN-4N and a volume of liquid which can represent a standing undamped wave with predetermined stream tubes (1-5) through the openings between the baffles, Fig. 1 (not shown), the method of stabilizing comprises distribution of the pressure drop of the system between the various rows of baffles in a predetermined manner so that the standing wave is damped but the stream tubes of the undamped standing wave are substantially preserved. In one embodiment, Fig. 6 (not shown), the rows of baffles comprise a plurality of spaced vertical pipes (22) and (24) in the outer rows of which each pipe (24) has a vertical flange (26) mounted on opposite sides. In another embodiment the baffles are defined by vertical plates supporting transverse horizontal pipes on which are mounted upstanding vertical flange members.
Patent GB-603840-A (GB)
Title: Improvements in or relating to artificial filaments, films and similar articles
IPC: D01F6/62
Filed: 1946-05-22
Abstract: Artificial filaments, films, or similar articles, having a basis of a linear polymerized ester (obtained by heating one or more glycols of the series HO(CH2)nOH, where n is an integer greater than 1 but not greater than 10, with terephthalic acid or an ester-forming derivative thereof) are heated to a temperature which is below and preferably at least 30 DEG  C. below the melting point, and subjected to a tension sufficient to cause permanent elongation.  The glycol used in making the polymer may be ethylene, tri-methylene, tetramethylene, hexamethylene, or decamethylene glycol, and it may be condensed with terephthalic acid or an aliphatic, cycloaliphatic, or aryl ester, or acid halide, or ammonium or amine salt thereof. Continuous filaments or yarns may be obtained from the polymer by melt spinning, or from solutions of the polymer in solvents such as cresols, nitrobenzene, and tetrachloroethane.  Films may be obtained by extrusion of the molten polymer and quenching the extruded polymer by jets of cold air or other inert gas, or by immersion in a cold liquid such as water, or by contact with a cooled metal surface. The polymer may be extruded as a large diameter but thin walled tube which may be flattened on cutting so as to provide one or more films. The films are preferably stretched after extrusion while they are being quenched.  Films may also be obtained by casting a solution of the polymer and evaporating the solvent. The drawing to effect molecular orientation is preferably carried out as soon as possible after the formation of the filaments and films.  Fine filaments are preferably drawn at a temperature greater than 60 DEG  C. but thicker filaments suited for use as bristles are preferably drawn initially at a temperature of 40 DEG  C. or less.  Drawing may be effected in two or more stages.  The drawing is preferably followed by a heat setting treatment which is at least as high as the maximum drawing temperature.  This treatment may comprise the initial stage of cooling filaments which have been drawn, or may be a separate treatment.  Heat setting may be effected under a tension which allows relaxation, e.g. 10-15 per cent.  Twisted yarns such as high twist yarns suited for the production of crape fabrics, or sewing threads may be subjected to heat setting.  Films may be stretched longitudinally and transversely.  Specifications 533,307, 536,379, 536,380, 542,509, 567,358, 578,079, 588,411, 590,451, 603,839, 603,842 and 603,843 are referred to.
Patent GB-580837-A (GB)
Title: Improvements in or relating to benches for circular saws
IPC: B27B5/26
Filed: 1945-04-11
Abstract: 580,837. Circular saws. HOBBIES, Ltd., and FISHER, W. L. April 11, 1945, No. 8980. [Class 145 (ii)] In a bench for a circular saw, means are provided for tilting the bench in two directions, so that the wood may be either cut obliquely or grooved. The bench 4, through a hole in which the saw 1 protrudes, is mounted at the back by hinges and at the front by slotted strips 15, 16 engaged by bolts 17, 18, on two vertical segments 5 having slots 7 through which they are connected by bolts 9 to the base 11. By loosening lock nuts 13 on the bolts 9 and allowing the bolts 9 to slide round the slots 7, the bench can be tilted so that the wood is cut obliquely, and by loosening lock nuts 19, 20 on the bolts 17, 18 and raising the front of the bench so that only a small part of the saw protrudes above it, a groove can be cut in the wood.
Patent GB-1392811-A (GB)
Title: Methods for treating steel to modify the structure thereof
IPC: C23C8/00
Filed: 1971-04-07
Abstract: 1392811 Modifying stainless steel surfaces UNITED KINGDOM ATOMIC ENERGY AUTHORITY 27 March 1972 [7 April 1971]  9013/71 Headings C7F and C7U Stainless steel articles are case-hardened by subjecting them to ion bombardment by carbon ions, such that the ions are implanted in the surface regions of the articles. The ions may penetrate sufficiently to form a "buried layer" beneath the surface; in this case the outer region may then be removed down to the hardened structure.
Patent GB-140830-A (GB)
Title: Improvements in pile fabric and yarn and method of making the same
IPC: D03D27/00
Filed: 1920-03-27
Abstract: 140,830. Alva Carpet & Rug Co., (Assignees of Fromuth, A. G.). Sept. 18, 1915, [Convention date]. Printing yarns.-In the manufacture of pile fabrics, such as tapestry and velvet carpets, in which parti-coloured printed yarns form the pile loops or tufts, these'yarns are printed where desired with stripes of colour narrower than the width required to form a loop or tuft and lying between unprinted stripes, so that individual loops or tufts in the fabric have both coloured and uncoloured portions of yarn. For example, yarns 2, Fig. 2, are printed with narrow black stripes 10 between uncoloured stripes 11 at parts, and at other parts black, red, and green stripes 6, 7, 8 of the usual width are printed, the stripes 10 being printed by narrow rollers 9, Fig. 3, and the stripes 6, 7, 8 by rollers 4 of the usual width. The effect of the blade stripes 10 in the woven fabric is that shown in the mottled black and uncoloured central swastika 1. Fig. 1. the printing of the yarns 2 being that required for the yarn along the line 2 - - 2 of the fabric. Various effects may be produced; thus a rug may be woven with a solidcoloured border, and a Moresque or mottled effect in the centre, dots of natural yarn colour may be sprinkled where desired in the body or border or both, end lighter-coloured effects may be obtained at the parts where the yarns are printed with the narrow stripes.
Patent GB-168089-A (GB)
Title: Improvements relating to the manufacture of bricks
IPC: B28B11/24
Filed: 1920-03-30
Abstract: 168,089. Smitheman, A. March 30, 1920. Plant, general arrangement of.- A portable brick-making plant comprises a clay grinder, pugmill press and kiln all mounted upon wheels. The clay passes by the elevator 1 to the hopper 2 of the roller grinder 3 and then to the pugmill 4, the issuing bar of clay being cut into bricks which are passed by a conveyer 5 to a brick press 6 and thence by a conveyer 7 to a kiln 8. When full, the kiln is removed for the burning process and replaced by an empty one. Specification 156,820 is referred to.
Patent GB-607672-A (GB)
Title: An improved method of and means for moulding ring-like and other shaped open members
IPC: B29D99/00
Filed: 1946-03-25
Abstract: 607,672. Moulding synthetic rubber &c. rings. DOWTY EQUIPMENT, Ltd., and ORD, L. R. March 25, 1946, No. 9181. [Class 87(ii)] Synthetic rubber or other material is pushed by a plunger 16 into a multi - compartmented mould comprising a barrel 8 having a bore in which are clamped alternatelydisposed rings 9, 10. The inside edges of the rings 10 stand proud of the inside edges of the rings 9, thus forming annular moulding spaces into which the rubber is forced, the plunger passing right through the rings. The plunger is then retracted, the apparatus is heated to vulcanize the rubber, the clamp 13 is unscrewed and swung out of the way on pivoted arms 15, and the batch of vulcanized rubber rings, together with the rings 9, 10, is forced out of the barrel by means of a plunger 18 acting on a loose collar 11. If it is desired that the rubber stick to the rings 10, to form sealing washers as described in Specifications 537,654 and 576,233, [both in Group XXVI], the bores of the rings 10 are left rough, or roughened, or treated with rubber-to-metal bonding flux. Alternatively, the rubber rings may be separated from the rings 10.
Patent GB-264694-A (GB)
Title: Improvements in or relating to correcting devices for use in synchronous telegraphy
IPC: H04L7/00
Filed: 1926-04-07
Abstract: 264,694. Muirhead & Co., Ltd., Muirhead, F. H., Heurtley, E. S., and Foll, J. V. April 7, 1926. Synchronous movements.-In an arrangement for maintaining synchronism of telegraphic apparatus by applying correcting movements to a differential gear, each correcting impulse frees the restraining member of the gear to permit its movement through a predetermined distance under the action of the drive. A detent f, f<1> carried by the armature F of the correcting magnet G effects the step-by-step release of a crown or pin wheel E connected to the casing c of the differential gear through reducing gears e, d<1>, D, C. Specification 215,434 is referred to.
Patent GB-454228-A (GB)
Title: Improvements relating to the driving of piles
IPC: E02D7/26
Filed: 1935-03-25
Abstract: 454,228. Driving piles. CONCRETE PILING, Ltd., 28, Victoria Street, Westminster, and LEIGHTON, J. M., Dalry, Helen's Bay, Co. Down, Northern Ireland. March 25, 1935, No. 9193. [Class 68 (ii)] A pile is driven into the ground by applying to it a static pressure sufficient to keep it in motion and supplementing that pressure by hammer blows. The apparatus shown comprises a winch 7a and tackles 5, 5a, for applying the static pressure and a winch 8 for lifting the drop hammer 4.