baber/WOPTO huggingface dataset:
Patent GB-873447-A (GB)
Title: A process for obtaining organically substituted hydrazines
Filed: 1959-08-25
Abstract: A process for obtaining organically substituted hydrazines from synthesis solutions, which are produced from ammonia, alkali metal hypochlorite solution and an amine, comprises adding an alkali metal hydroxide to the synthesis solution to bring the solution to an alkali metal hydroxide concentration of 10 to 40% by weight, extracting with an inert organic solvent capable of dissolving such hydrazine and recovering the organic hydrazines from this extract by fractional distillation.  Suitable extraction solvents are aromatic amines, aromatic hydroxy compounds and aliphatic amines having at least 7 carbon atoms. The extract of organic hydrazines is preferably treated with solid caustic alkali during the distillation in order to remove small quantities of water.  The examples describe the recovery of mono- and di-methyl hydrazine.
Patent GB-684163-A (GB)
Title: Improvements in and relating to conveyors
Inventor: BOOKEY JOHN TERENCE BROWNRIGG
IPC: F16K31/40
Filed: 1949-11-14
Abstract: 684,163. Endless conveyers. CHARROLD, Ltd. Feb. 14, 1951. [Nov. 14, 1949] No. 29131/49. Class 78 (i). A conveyer comprises a main belt which conveys the material, and a plurality of spaced co-extending V-belts on which the separate main belt is supported for a part or the whole of its upper run, the V- belts being supported on V-pulleys the shaft of at least one of which is driven so as to impart drive to the V- helts and thus to the main belt. The main belt 1 is thus driven by a plurality of narrow bands 2, Figs. 1 and 11, mounted on sets of pulleys 3, 4, fixed on shafts 5. 6 repectively. A motor disposed within the conveyer framework drives shaft 6 through a chain and sprocket connection, Fig. 1. Screw means 23 are used to tension both the bands 2 and the belt 1, the latter thereby being pressed against the bands. Pulleys 4 are larger than pulleys 3 so that the belt is pressed into contact with the bands 2 over nearly the whole length of the latter. The pulleys in cach set may be of varying diameters to give a convex or concave form to the belt 1, Fig. 11, or alternatively the pulleys can be the same size and the bands 2 may be of varying height. The bands 2 may be joined together at their outer faces to form a belt surface on which the belt 1 is supported. Pulleys 10, Fig. 4, may be provided alternately with the pulleys 4 and further narrow bands 9 are mounted on these and corresponding pulleys 11, so that several sets of narrow bands may extend the whole length of the conveyer. Transverse bars 15, Fig. 11, mounted on auxiliary lateral bands 14 driven by further pulleys 12 on each of the pulley shafts assist in conveying on inclines. The narrow bands also may have serrated outer faces if desired to increase their grip. Each pulley may consist of two halves 19, 20, Fig. 16 having bosses which are screw-threaded one on the other so as to vary the distance between them tu accommodate wear of the bands 2. A lock-nut 18 secures the halves in position. The inner side of the band 1 is cleaned as it passes around one end set of pulleys 3x, Fig. 4, by jets of air issuing from a transverse tube 17, located just below the narrow bands and provided with orifices directing the jets between the narrow bands.
Patent GB-1464064-A (GB)
Title: Interlocking fastening elements for zip fasteners made of polyester monofilaments
IPC: D01F6/62
Filed: 1975-07-11
Abstract: 1464064 Polyester monofils TEIJIN Ltd 11 July 1975 [15 July 1974 26 March 1975] 29238/75 Heading B5B [Also in Division E2] A monofil is prepared from either trimethylene terephthalate, tetramethylene terephthalate or hexamethylene terephthalate polymers. These polymers must contain at least 85 mole per cent of one of the above units and have an intrinsic viscosity (as herein defined) of 0À35 to 3À5 and the monofils must have a denier of 200 to 20,000 and a circularity of at most 1À01. The monofils are produced by the polymer into a filament of the appropriate size, passing it through an air-gap into a cooling bath of an inert liquid held at a temperature of 60 to 100 C. and then passing it through a secondary cooling zone at a temperature of less than 35 C. The filament is then drawn, in the case of polytetramethylene terephthalate at a temperature which is preferably from 60 to 150 C. The filaments may then be heat-set under restricted shrinkage conditions. The monofils may be formed into shapes desired for use as zip-fastener elements by winding around a heated mandrel and heat-setting them in the form of a coil or by feeding them to a disc equipped with a traverse and bending the resultant zig-zags double and heat-setting them in this form.
Patent GB-1037515-A (GB)
Title: Improvements relating to gas-cushion vehicles
Inventor: HOPKINS LESLIE ARTHUR
IPC: B60V1/00
Filed: 1962-07-30
Abstract: 1,037,515. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. July 26, 1963 [July 30, 1962], No. 29264/62. Heading B7K. In a side-wall air cushion vehicle each side wall comprises a series of downwardly depending legs, each capable of vertical movement, lifting means for lifting the legs in accordance with variations in the level of the surface and flexible means connecting the legs to contain the cushion of pressurized gas. Legs 1 (Fig. 1, not shown) spaced along the length of each wall are each capable of vertical sliding movement within a guide space 2 with which a roller 3 on the top of the leg co-operates. The leg also passes between further rollers 6 mounted on a carrier 7 capable of axial rotation within a housing 8, whereby the leg may swing fore-andaft. The lower end of each leg has a flexible connection 10 with a lift member 9 constructed as an inflatable flexible tube and all the legs in each wall are connected at 14 by a flexible skin 11, which is secured at 12 to the body and 13 to the member 9. A tie 16 (Fig. 2, not shown), is stated to prevent initial rearward displacement of the wall. The top end of each leg may be attached to a spring for counterbalancing its weight and load storing means may be provided for returning the leg to its original position after it has passed over a wave. In another embodiment, the member 9 may be a duct supplied with pressure gas which is discharged through the base to form gaseous curtains which contain a secondary air cushion. In still further embodiments, the member 9 may be rigid and provided with wheels or hydrofoils, or an air cushion may be formed beneath it. Reference has been directed by the Comptroller to Specification 935,825.
Patent GB-1185309-A (GB)
Title: Improvements in or relating to Hydraulic Reservoirs, more particularly for Vehicle Brake or Clutch Systems.
Inventor: REYNOLDS DESMOND HENRY JAMES
IPC: B60T11/26
Filed: 1966-06-29
Abstract: 1,185,309. Hydraulic brakes and clutches; valves. GIRLING Ltd. 14 June, 1967 [29 June, 1966], No. 29300/66. Headings F2F, F2L and F2V. In a reservoir for an hydraulic actuating system having a moisture barrier comprising a flexible diaphragm 1 capable of deforming to accommodate a degree of change in liquid level before any pressure drop is developed across the diaphragm, a one-way valve 3 is provided for admitting air to the reservoir when a predetermined pressure drop is developed. The diaphragm 1 may have the form of a generally flat disc with a thickened rim and a flexible pleat 6 formed concentrically therein, and a second one-way valve 4 may be formed in it to relieve excessive pressure. As an alternative, an independent one-way valve may be provided (Fig. 3, not shown); the diaphragm may also be of the bellows type (Fig. 4, not shown).
Patent GB-1188741-A (GB)
Title: Method for the Oxidation of Internal Olefins.
IPC: C07C1/24
Filed: 1968-06-19
Abstract: 1,188,741. Oxidation of internal olefins. ATLANTIC RICHFIELD CO. 19 June, 1968 [16 Oct., 1967], No. 29314/68. Heading C2C. [Also in Division C5] Internal olefins (i.e. non-terminal olefins) having from 4 to 30 carbon atoms are oxidized by irradiation with visible light in the presence of a free-oxygen containing gas, a photosensitizing catalyst (e.g. a meso-tetraarylporphin) and a molybdenum containing catalyst (e.g. molybdenum oxyacetylacetonate) soluble in the reaction medium. The oxidation of 2-methylbutene-2 is exemplified. The products are 2-methyl-3- hydroxy-1-butene and 3-methyl-3-hydroxy-1- butene together with 2-methyl-2,3-epoxybutane. This mixture is isomerized in the presence of a lithium phosphate catalyst (U.K. Patent Specification 1,057,137 referred to), thereby isomerizing the epoxide to the corresponding alcohol, i.e. 2-methyl-3-hydroxy-1-butene. The isomerization is generally carried out at temperatures between 80 and 250 C. The molybdenum catalyst is preferably present in amounts of 0À001 to 1À0 weight per cent of the reaction mixture. The photosensitizer is preferably a porphin having aromatic meso-substitution and is preferably present in amounts of 0À01 to 1À0 weight per cent of the reaction mixture.
Patent GB-732264-A (GB)
Title: Improvements relating to electric lamp holders
Inventor: WILLIAMS GEORGE ALBERT
IPC: H01R33/00
Filed: 1952-11-20
Abstract: 732,264. Mounting electric lamps in lamp casings. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 19, 1953 [Nov. 20, 1952], No. 29372/52. Class 75 (4). [Also in Group XXXVI] An electric lamp holder assembly particularly adapted for use in an indicating lamp mounted behind a panel, comprises a lamp bulb carrier 2 slidable into and out of a holder 4, but adapted to prevent relative rotation between the lamp - and the holder, and a detachable cover 1, the arrangement being such that when the cover 1 is in position it presses the lamp bulb 3 and carrier 2 into the holder 4 so that the lamp contacts engage spring-pressed contacts 12, which urge the carrier and lamp bulb out of the holder 4 when the cover 1 is removed, thus facilitating the removal of a defective lamp bulb. The carrier 2 comprises an end ring 5 and a pair of spring side arms 6 which are apertured to engage side pins 7 of the lamp bulb, and the free ends of the arms 6 are bent outwardly to form lugs 8 for engaging in guide grooves 11 in the holder 4. The cover 1 has a glass window 13 and catches 14 for co-operating with bayonet slots 15 in the holder 4. To prevent the cover being loosened by vibration the inner face thereof has recesses for engagement by projections 16 on the ring 5.
Patent GB-203569-A (GB)
Title: Improvements in or relating to toy or model locomotives and other vehicles
IPC: A63H19/14
Filed: 1922-10-27
Abstract: 203,569. Renton, H. Oct. 27, 1922. Mechanical toys.-In toy locomotives &c. having means for making a noise imitating the exhaust, the sound is produced by a coneshaped passage, the small end of which is in line with a nozzle from which issues an air current produced by means actuated from the wheels. The cone 7, the edge of which may be sharpened, is arranged in the funnel and in line with a nozzle 6 formed by a perforated plate through which the air is forced by a piston 4 operated by a cam 8 and rocker 10 from the axle 2. The piston may be operated by a crank on the axle working in a slot in a slider connected with the piston, or the pump may be horizontal and the cone 7 arranged in the hollow body of the vehicle. The cam may be shaped to operate the piston with a jerk.
Patent GB-632548-A (GB)
Title: Apparatus for controlling the flow of fluid through an electrically operated valve
IPC: F16K31/04
Filed: 1947-11-05
Abstract: 632,548. Electrically - actuated valves. DRAYTON REGULATOR & INSTRUMENT CO., Ltd., GROVER, R. V., and FORSTER, R. R. Nov. 5, 1947, No. 29510. [Class 135] In apparatus for controlling the flow of fluid through an electrically-operated diaphragm valve having an electric motor 1 driving a disc 2 associated with a spring-loaded bell-crank 6 connected to a push-rod 8 for operating the valve, the "disc has two pins or rollers 4, 5, adapted to be brought consecutively into contact with one arm of the bell-crank. The pin 4 normally operates the bell-crank, but in order to prevent overtravel of the disc, the pin 5 contacts the bell-crank nearer its fulcrum 9 in order to place an increased load on the motor immediately before the latter reaches its stalling position. Immediately after pin 5 has contacted the bell-crank, a cam 13 on the disc shaft 12 operates a switch 14 to cut out part of the motor stator winding.. When the push-rod is lifted away from the diaphragm 10, the fluid-pressure lifts the diaphragm to open the valve 11.
Patent GB-726818-A (GB)
Title: A device for checking the extent of relative slip movement between printing and impression surfaces of cylinder type printing presses
IPC: B41F3/12
Filed: 1952-11-21
Abstract: 726,818. Printing-machines. STICHTING INSTITUUT VOOR GRAFISCHE TECHNIEK VAN DE ORGANISATIE VOOR TOEGEPASTNATUURWETENSCHAPPELIJK ONDERZOEK. Nov. 21, 1952 [Nov. 24, 1951], No. 29516/52. Class 100 (2). A device for measuring the extent of slip movement between the printing and impression surfaces of a machine comprising an impression cylinder having a resilient blanket and a forme plate mounted on a reciprocating bed, comprises a holder 10 adapted to be mounted on the bed instead of the printing forme, a strip 9 movable relative to the holder and means for indicating the extent of movement of the strip 9 with respect to the holder. The strip is mounted on a roller race comprising rollers 8 mounted in a cage 6. Plates 4 attached to the ends of the cage 6 engage the middle turns of springs 3 acting between the ends of the strip 9 and stops 1, 12 limiting movement of the strip. The stop 1 has a screwed abutment 2 for the spring 3 whereby the position of the strip 9 can be initially adjusted to a zero position. The other end of the strip abuts a rod 15 actuating a clock gauge in the stop 12 at 14. In use, the device is secured to the bed of the machine and passed under the impression cylinder. The gauge then indicates any displacement or slip between the surfaces of the impression cylinder and the reciprocating bed and adjustments to the machine can be made accordingly. In addition to, or instead of the gauge a cathode-ray oscillograph may be provided so that the slip movement may be studied under running conditions. For this purpose bow springs are mounted to abut each end of the strip 9. and strain gauges on one of these springs are. connected to the oscillograph to indicate variations in deformation.
Patent GB-874277-A (GB)
Title: An improved method of cooling goods packed in containers
IPC: A23B5/04
Filed: 1958-09-15
Abstract: 874,277. Ice-making; cooling animal and vegetable substances. WILBUSHEWICK, E. Sept. 15, 1958, No. 29531/58. Class 29 Egg yolk, fruit juices or purees of animal or vegetable origin are cooled or frozen in containers cooled by cooling eliments, heat exchange between the elements and the containers cooled by cooling elements, heat interspace with water or other liquid, freezing it and then, when cooling has been concluded, thawing it by the application of heat to release the containers. The containers may be made of metal, plastic or paper sheet and may be coated externally with ski lacquer to reduce ice adhesion. As shown in Fig. 1, containers A are placed in compartments of a housing 6 which is formed with peripheral and partitioning evaporator spaces 8. In addition, a central evaporator 7 extends through a top opening into the material being cooled or frozen. Water is poured into the interspace 68 and a hinged flap 9 is latched or frozen in position beneath each container. On supply of refrigerant, the water freezes and then the material is cooled or frozen. When hot gas is supplied to evaporators 7, 8, the containers are released, flaps 9 drop open, and the containers fall down a shoot or on to a discharge conveyer. In a modification, Fig. 3 (not shown), a sqaure housing with external evaporator 8 contains four containers and two lines of evaporators 7 extend at right angles across the housing between the containers. In further modifications, the container does not have a top opening but has a central vertical passage through which evaporator 7 extends; several such containers can be superimposed, a common evaporator 7 extending through the aligned passages. Three containers can be arranged in a common evaporator 8 as shown in Fig. 6. A multibank system similar to the ice making machine described in Specification 802,593 can be used, the refrigerating and thawing circuit forming the matter of Specification 874,278.
Patent GB-956702-A (GB)
Title: A stillage for pit-props and the like
Inventor: HOLLOWS FRANK
IPC: B61J1/10
Filed: 1959-08-31
Abstract: 956,702. Stillages. COAL INDUSTRY (PATENTS) Ltd. Aug. 18, 1960 [Aug. 31, 1959], No. 29587/59. Heading B8H. A stillage for articles such as pit-props for use with a fork-lift truck comprises a base 24, rear uprights 27 and a drop front 20 which may be secured either vertically or horizontally by means of a spindle 22 by which the front 20 is pivoted to the base. The spindle 22 has a squared end which engages squared holes in a bracket 23 and the bottom of the corresponding upright of the drop-front 20. The squared end may be disengaged to allow the front to pivot by either pushing or pulling the spindle in or out by means of a handle 21, limit stops 22B being provided. A spring 25 retains the drop-front in stowed position beneath the base. Projections 28 and brackets 26 are provided for engagement by the forklift truck.
Patent GB-819164-A (GB)
Title: Composition and process for producing cellular structure plasticized vinyl resin
IPC: C08J9/14
Filed: 1956-09-27
Abstract: Foamed materials are prepared by processes comprising mixing finely divided vinyl chloride polymers, organic plasticizers suitable for forming plastisols therewith and foaming agents in the liquid state comprising polyhalogenated saturated hydrocarbons having atmospheric boiling points between 40 DEG  and 175 DEG  F., heating the mixture to obtain a fluid foam and effect solvation of the resin in the plasticizer, and cooling to form a foamed material of solid cellular structure.  Specified resins are polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate, diethyl maleate or vinylidene chloride.  The plasticizer may be tricresyl phosphate, dioctyl phosphate, dioctyl phthalate, di-2 - ethylhexyl phthalate, n - butyl benzyl phthalate or mixtures thereof.  Specified foaming agents are 1,2-difluoroethane, trichloromonofluoromethane, methylene chloride, carbon tetrachloride, 1,1-dichloroethane, 1,1,1-trichloroethane, 1,1,1 - trichloro - 2,2,2 - trifluoroethane, and dichloromonofluoromethane.  Metal soaps, e.g. aluminium stearate and barium and cadmium soaps, pigments, fillers and volatile thinners may also be added.  The plastisol compositions may be placed in moulds and preheated by oven or dielectric heating to form expanded unfused foams, and the temperature then raised to form the fused cellular structure.  The products may be used in seat cushions and mattresses. Specifications 737,367 and 819,163 are referred to.
Patent GB-973750-A (GB)
Title: Improvements relating to high pressure hoses
IPC: F16L11/127
Filed: 1961-08-16
Abstract: 973,750. Flexible hoses. POLYMER CORPORATION. Aug. 16, 1961 [Aug. 23, 1960], No. 29649/61. Heading F2P. A hose including static charge eliminator means comprises an inner, tubular, highpressure hose member 21 of nylon and at least one corrugated, static eliminator wire 10 supported by the hose member and extending substantially parallel to the longitudinal axis of the hose, and an outer, tubular reinforcement, braid 22 covering the wire and reinforcing the inner tube. The member 21 may be extruded, and the braid 22 of high-tensile nylon yarn. The wires 10 may be of copper and solid, or braided interwoven or stranded filaments.
Patent GB-395216-A (GB)
Title: Improvements in apparatus for supplying spinning solutions for the manufacture of artificial silk and the like
IPC: D01D1/09
Filed: 1932-10-24
Abstract: In spinning artificial silk, fluctuations of pressure are avoided by the insertion in the discharge pipe of a length of rubber tubing having a bore less than the thickness of its wall. Undue distension of the tube may be prevented by an outer tube or spiral.
Patent GB-461920-A (GB)
Title: An improvement in or relating to fuse carriers for electric fuses of the cartridge type
IPC: H01H85/20
Filed: 1935-10-29
Abstract: 461,920. Fusible out - outs. SYKES & DYSON, Ltd., SYKES, P., and GRIFFITH, F. J. Oct. 29, 1935, No. 29783. [Class 38 (i)] A carrier is recessed to take a cartridge fuse and associated contacts, an insulating block retaining them in the recess. A. semi-cylindrical seating d<1> is formed in the carrier d having a radius equal to that of the end caps of the fuse e<1> plus the thickness of the metal strips from which the contact blades f are formed. A block i shaped to fit the cartridge e is screwed on to shoulders d<2>. Rotation of the cartridge is limited by lugs i<3> which loosely engage the contacts f.
Patent GB-1188029-A (GB)
Title: Motor Vehicle Suspension.
Inventor: BASTOW GEOFFREY
IPC: B60G13/00
Filed: 1967-06-28
Abstract: 1,188,029. Controlling lateral wheel movements. ROLLS-ROYCE Ltd. 10 May, 1968 [28 June, 1967], No. 29816/67. Heading B7D. In a motor vehicle rear wheel suspension arranged to provide lateral compliant understeer, at least one auxiliary damper (28/29 or 37) is provided to control understeer movements of the wheels. In a first embodiment, a beam axle 22 is connected to a leaf spring 16 on each side of a vehicle (one spring only being shown) by a plurality of pivoted links 20 to permit relative lateral and fore and aft movements of the axle and sprung mass 15 such movements being controlled by a pair of pivoted rods 25, 26 and a damper 29 interconnecting a bracket 24 on the axle and a plate 27 on the sprung mass. The end connections of predetermined flexibility and the positions of the rods determine the degree of compliant understeer and the position of the virtual pivot centre of the axle. The damper comprises a pair of telescopic tubes with grease in the annular space between them. In a second embodiment (Fig. 4) a pair of semitrailing arms 33 are connected by coil springs to the sprung mass and mounted on a crossmember 34 which is connected to the sprung mass by resilient mounts 35 and a pair of links 36 which converge behind the axis of the wheels 12 to determine the virtual centre of the crossmember 34. A pair of telescopic auxiliary dampers 37 interconnect the sprung mass and the junctions of the links 36 with the crossmember 34.