baber/WOPTO huggingface dataset:
Patent GB-887908-A (GB)
Title: A process for the purification of isoprene
IPC: C07C7/148
Filed: 1960-10-28
Abstract: Isoprene containing less than 2% of its weight of cyclopentadiene is purified by reacting with at least 1 mol of maleic anhydride per mol of cyclopentadiene at less than 50 DEG C. and separating the adduct formed.  The isoprene may be concentrated, e.g. containing 95%-99% by weight or in dilute solution containing 10%-20% by weight of isoprene.  The maleic amhydride is added in solution, e.g. in benzene or acetone containing 20%-30% by weight of the anhydride, or by passing the isoprene through a bed of solid maleic anhydride at a temperature sufficient to dissolve the required amount, e.g. 25 DEG C.-40 DEG C. After sufficient time to form the adduct this is removed by washing with aqueous alkali and water or by distillation.  The process preferably reduces the cyclopentadiene concentration to below 20 p.p.m.
Patent GB-978947-A (GB)
Title: Plastic article making
IPC: B29C48/09
Filed: 1962-10-01
Abstract: 978,947. Moulding hollow articles. OLIN MATHIESON CHEMICAL CORPORATION. Oct. 1, 1962 [Oct. 13, 1961], No. 37156/62. Heading B5A. [Also in Division F3] Thermoplastic material is injected into a cavity to form a slug, which comprises one part of the article plus a " reservoir " bead which is then drawn to form the other part. In Fig. 1, material is injected through a sprue 37 into a cavity 30, to form a slug (Fig. 2). Cavity 30 is enclosed by a tubular mould 1, a sprue bushing 15, a mould core tip 10 and a draw sleeve 20. Core tip 10 is supported by a rod 12 along which sleeve 20 may be moved by means of a rack 26 and pinion 40. End 71 (Fig. 2) of slug 70 forms the base of the cartridge being made while end 75, which is enclosed by mould 1 and portion 22 of sleeve 20, is drawn to form the tubular part by withdrawing sleeve 20, as in Fig. 4. Warm nitrogen is forced into cavity 23 through a passage 33 and vents 39 to push the drawn tube against the roughened wall of mould 1. The finished cartridge is ejected by withdrawing a plate 2, carrying mould 1, from block 16. Heaters 60 are provided to reduce cooling speed. A metal cap for the cartridge base may be inserted prior to injecting the material into cavity 30. Fig. 8 shows a slug 300 having an outwardly extending reservoir 305, which is drawn by withdrawing a mould collar 92 with a draw lip 93. A vent 95 is provided, corresponding to groove 38 in Fig. 1, to prevent entrapment of air on injection or void formation on drawing. Collapsible tubes may be made by injection moulding the head and drawing the body. The process is applicable to polyethylene, polypropylene or similar polyolefin or crystalline plastics. U.S.A. Specification 2,582,125 is referred to.
Patent GB-1361276-A (GB)
Title: Fuel delivery control apparatus for use on a diesel engine
IPC: F02D1/00
Filed: 1971-08-09
Abstract: 1361276 Fluid pressure servo-systems AUTOMOBILES M BERLIET 9 Aug 1971 [12 Aug 1970] 37256/71 Heading G3P [Also in Division F1] In a system for controlling the fuel pump of a naturally-aspirated diesel engine so that fuel supply increases with increased engine speed over a low-speed range, air flow through the engine intake is detected by oppositely-facing probes 6, 7 the pressure differential in which is amplified by two pure fluid proportional amplifiers 10, 11 arranged in cascade. The amplifiers have their power jets supplied with air from an accumulator via line 18, and the output pressure is applied to diaphragm 14 controlling fuel pump rack 3.
Patent GB-759671-A (GB)
Title: Improvements in or relating to maximum-speed indicating devices in turbine-driven vehicles
IPC: G01P1/10
Filed: 1952-04-09
Abstract: 759,671. Speed indicators. REGIE NATIONALE DES USINES RENAULT. April 9, 1952 [June 29, 1951], No. 37273/54. Class 106 (3). [Also in Group XXXI] A maximum-speed indicator device for a turbine-driven vehicle comprises a member 1 movable to permit the closing of an electric switch 11 actuating an indicator 14 when the speed of the turbine (not shown) reaches predetermined value, and a mechanism between the movable member 1 and a movable contact 12 of the switch 11 enables the indicator 14 to continue to be actuated after the speed of the turbine has dropped, the mechanism comprising a rod 9 connected to the movable contact and urged by a spring 10 towards a position for closing theswitch 11 and a stop 5 urged by another spring 8 into the position shown in Fig. 1 to lock the rod 9 in a position in which the switch 11 is open.until permitted to move from that position by the movable member 1, and the movable contact 12 being restorable to the open position only by manual action. As shown, a spring 10 urges the rod 9 into the position closing the switch 11. The rod 9 is retained in the open-switch position by the stop 5 which is pivoted to an arm of a bell-crank lever 4 pivoted at 4a to a fixed cylinder 6, the other arm of the lever 4 being connected through a lost motion device 2, 3 to the member 1 which is moved in the direction of the arrow when the turbine speed increases. The arrangement is such that when the turbine exceeds the predetermined speed the stop 5 is moved to the right permitting downward movement of the rod 9 under the action of the spring 10 and hence closing the switch 11 to operate a sound or other warning device forming the indicator 14 to attract the driver's attention. Subsequent reduction of turbine speed does not reset the device due to the lost motion device 2, 3. The switch 11 is only opened by manually raising the member 9 by means of a knob 15, thus allowing the stop 5 to be moved to the position shown by the spring 8.
Patent GB-326553-A (GB)
Title: Process for the manufacture of alkylamine derivatives of organic compounds
Filed: 1928-12-17
Abstract: 326,553. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 17, 1928. Anthracene and phenanthrene derivatives;- Dialkylamino-alkylammo derivatives of hydroxy compounds of the anthracene and phenanthrene series are obtained by converting a reactive compound of either of these series into a basic or more strongly basic derivative in which an aromatic amino group is connected to a dialkylamino group through an alkylene residue. The conversion is effected by the customary methods, such as those described in Specification 274,058. In examples, (1) 1-bromanthraquinone is condensed with asymmetric diethylethylenediamine in the presence of pyridine and copper bronze, and the resulting 1- diethylaminoethylaminoanthraquinone is reduced, by hydrosulphite in alcoholic solution, to 1-diethylamino-9 : 10-dihydroxyanthracene, and (2) 2- amino-9 : 10-dihydroxyphenanthrene, obtained by reducing 2-nitrophenanthrenequinone with stannous chloride, is heated with diethylaminoethyl chloride; the product is 2-diethylaminoethylamino- 9 : 10-dihydroxyphenanthrene. The products are of therapeutical value.
Patent GB-1223549-A (GB)
Title: Tapered roller bearings
Inventor: ALTSON RALPH
IPC: F16C33/46
Filed: 1969-07-24
Abstract: 1,223,549. Roller bearings. GENERAL MOTORS CORP. 24 July, 1969, No. 37306/69. Heading F2A. A taper roller bearing has a race 14 which has a raceway 24 of tapered section and a frustoconical portion 26 of opposite taper to the raceway, a cage 18 being provided which has a first end ring 36 adjacent the frustoconical surface, and a second end ring 34 with cross-bars 38 extending between the two rings to form pockets in which tapered rollers 16 are located, means being provided protruding into the pockets, preventing radial movement of the rollers away from the raceway, and circumferentially spaced lugs 50 being provided on the first end-ring which have a tapered surface co-operating with the frusto-conical surface on the race to limit axial movement of the race away from the rollers. As illustrated, both races may be provided with a frusto-conical surface, and lugs may be provided on each end-ring. The cage is of resilient material in order to facilitate assembly.
Patent GB-894485-A (GB)
Title: Improvements in or relating to centreless bar turning machines
IPC: B23B5/12
Filed: 1960-10-31
Abstract: 894,485. Bar-turning machines. LINDEMANN, H., [trading as CALOW & CO., T. H.]. Oct. 31, 1960 [Oct. 30, 1959], No. 37346/60. Class 83 (3). Bar-turning machine has non-rotating work 16 fed to radially-adjustable tools 5 in a rotary tool-head through a collect device 17, 18. The member 18 of the collect is connected to a crosshead 19 which is forced away from the cutter-head by spring discs 22 so that when the stock diameter changes the member 18 moves axially towards or away from the cutterhead. This movement is transmitted by rods 20 from cross-head 19 to a tapered sleeve 8 rotatable with the cutter-head but slidable axially relative thereto. The outer end of the radially slidable cutter holders 3 are thus adjusted by the taper 7 a corresponding amount to the movement of member 18 and to the diameter change of the bar stock.
Patent GB-1526110-A (GB)
Title: Apparatus for positioning the edge of a travelling web
IPC: H01M2/14
Filed: 1976-09-09
Abstract: 1526110 Web transverse registering device I A KOLOSOV 9 Sept 1976 [10 Sept 1975] 37499/76 Heading B8R An apparatus for transverse registering the longitudinal edges of a moving web 3 supplied from a roll 2, comprises a web roll support shaft 1 which is axially displaceable by a doubleacting pneumatic piston cylinder assembly 7, 8 having a pair of conduits 9, 10 interconnecting the chambers with a source of compressed air (not shown) the conduits being provided with throttling valves 11, 12 and orifices 18, 19 which are arranged such that the discharge of air through at least one of them is dependent upon the position of the edge of the moving web and the deviation of the web edge from a required position causes displacement of the piston 8 which corrects the position of the shaft 1 holding the web roll 2. Both orifices may be mounted on a shaft 20 and the orifice 19, may be in the form of orifice 18 whose aperture is controlled by an edge sensor.
Patent GB-1506763-A (GB)
Title: Fastening mechanism for doors
IPC: E05B65/16
Filed: 1975-09-12
Abstract: 1506763 Vehicle door fastenings BLOXWICH LOCK & STAMPING CO Ltd 19 Aug 1976 [12 Sept 1975] 37529/75 Heading E2A A vehicle door fastening comprises a vertical operating bar E mounted in spaced bearings F on the half door B for angular movement about its axis; fastening members carried on each end of the bar E; and keepers J co-operating with the fastening members, the keepers being mounted to the top 2 bottom of the door frame. The fastening member incorporates on one side of the axis of the cylindrical shank 8 a radially projecting fork 9, the free ends of the limbs of which terminate in flat inclined faces 10 for co-operation with the flat surfaces 4 of the overhung lug on the keeper. On the opposite side of the axis of the fastening member is incorporated a radially projecting finger 11 adapted to engage in the recess 6 in the keeper. In the closing movement of the door the fastening member enters between the overhung lug and the boss 5 of the keeper, and the operating bar E is rotated to bring the co-operating parts into the fastened position and produce a wedging action which prevents relative movement between the fastening member and keeper. Forward projection 14 on the fastening member assists the opening movement of the door.
Patent GB-840952-A (GB)
Title: Liquefied gas storage containers
IPC: F17C3/02
Filed: 1958-11-24
Abstract: 840,952. Liquefied gas storage containers. CHICAGO BRIDGE & IRON CO. Nov. 24, 1958 [Sept. 22, 1958], No. 37684/58. Class 8(2). Prevention of displacement of particulate heat insulating material 25, Fig. 2, e.g. silica gel, granulated cork, shredded foamed polystyrene, fibre glass located between inner and outer walls 21, 22 of a liquefied gas container subjected to thermal expansion and contraction is effected by means of a resilient blanket 24 between the walls and forming a layer completely surrounding said inner wall 21. As shown an upper hemispherical layer of resin bonded fibre glass sheaths the upper portion of the inner spherical vessel whilst a lower hemispherical layer lines the outer vessel. The latter is supported by column 26 and supports the inner vessel by rods 23. In a modification the resilient layer comprises a plurality of coil springs 33, Fig. 3, extending between the inner vessel 30 and a thin membrane 32 between which and the outer vessel 31 is located granular material 34. The springs may be of undulating strip form. In a further modification the resilient layer comprises a plurality of inflatable cells and in a still further modification a fluid impermeable membrane 32, Fig. 6, is resiliently held against granular material 34 by means of sub-atmospheric pressure maintained between the voids thereof.
Patent GB-1115210-A (GB)
Title: Centrifugal pump
IPC: F04D29/04
Filed: 1965-09-03
Abstract: 1,115,210. Centrifugal pumps. H.G. BARTELS. Sept. 3, 1965 [Sept. 4, 1964], No. 37722/65. Heading F1C. In a centrifugal pump in which the impeller 3 is retractable to an inoperative position, tne impeller inlet is initially convergent in the direction of flow. The impeller inlet is formed by an annulus 4 which may be of plastics material or may be integral with the impeller. The pump impeller is moved to the operative position shown by the electromagnetic effect of its electric driving motor. When the impeller is in the inoperative, retracted position the flow area between the impeller and pump casing is equal to or greater than that of the attached conduit 1. The annulus together with a seal may be arranged as a thrust bearing. The external surface of the annulus may be streamlined.
Patent GB-1393482-A (GB)
Title: Pipe connections
IPC: F16L23/04
Filed: 1973-08-09
Abstract: 1393482 Clamps H DETIKER 9 Aug 1973 [10 Aug 1972] 37890/73 Heading E2B [Also in Division F2] In a pipe joint of the kind in which axial compression of sealing ring 15 is produced by tightening ring clamp 9, the clamp 9 is of the kind which is tightened by a non-elastic change of shape. The change is made by successively clinching two ears, each if which is originally in the shape 13 and is squashed to the shape 12. In another form, one or more cylindrical ring clamps (101, Fig 3, not shown) are provided.
Patent GB-1134380-A (GB)
Title: Valve gear for internal combustion engines
IPC: F02F1/42
Filed: 1967-08-17
Abstract: 1,134,380. Valve gear. DAIMLER-BENZ. A.G. Aug. 17, 1967 [Aug.20, 1966], No. 37956/67. Heading F1B. In I. C. engine valve gear each combustion chamber has two exhaust and two inlet valves 14, 16, Fig. 2 located in pairs in planes parallel to the rocking axes and actuated by a pair of interconnected rockers 17 and a forked rocker 11 disposed therebetween, the rockers 17 are interconnected by parallel crosspieces 19, 20 located opposite each other on either side of the rocking axis and the distance d between the rocker arm hubs is less than the sum of the maximum radii ra, rb of the respective hubs 33, 34. The rocker pair 17 and forked rocker 11 are each actuated by a single push rod 23, 22. The hub of the forked rocker is located endwise between the ends of the hubs of the rocker pair. The shafts 12, 21 are directly attached to elevated lateral walls (30), Fig. 2 on the cylinder head. In another embodiment the exhaust valves (13), Fig. 4 (not shown) are operated by the rocker pair (38) and the inlet valves (15) are operated by the forked rocker (40). The rocker pair can be of cast or welded construction or the rockers may be engaged with the crosspieces with a socket-like connection.
Patent GB-523334-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A61G7/002
Filed: 1938-12-31
Abstract: 523,334. Invalids' beds. PHILLIPS, Ltd., A., and ROGERS, A. E. Dec. 31, 1938, No. 37958. [Class 52 (ii) ] An invalid's bed comprises a central vertical pivot 11 carried by a stand 10 and supporting the sectional mattress. This consists of a central section 17 non-inclinable in the longitudinal direction but tiltable together with the whole bed in the lateral direction. Hand and foot sections 26, 27 are articulated to the central section 17 and may be inclined upwardly or downwardly by means of screws 24a, 24b. The central section 17 is carried by U-shaped members 16 secured to sleeves 15 pivoted on a pin 14 about which the section can be tilted laterally by screw means. Guard rails 30, 34 are detachably or adjustably mounted and the whole bed may rotate horizontally about the vertical pivot 11.
Patent GB-1520642-A (GB)
Title: Winding device for the automatic changing of bobbin tubes
IPC: B65H67/04
Filed: 1975-09-16
Abstract: 1520642 Continuous winding apparatus; winding transfer tails MASCHINENFABRIK RIETER AG 16 Sept 1975 [4 Oct 1974] 37993/75 Addition to 1488126 Heading D1J The object of the invention is the fixation of reserve windings on a wind-up tube and the apparatus used is substantially the same as that of the modified embodiment in Specification 1488126 except that the filament guide plate 38 is now supported on a lever 52, Fig. 4, such that the plate 38 can swing in the direction S. By means of the apparatus a better fixation of the reserve windings is obtained by causing them to be superimposed. In Figs. 4 and 5 the bar 16 is coupled to a piston 35'. As the piston 35' moves to the right, the yarn guide notch 17 in the bar 16 causes the filament 7 to move across the yarn catching and cutting zone 19 onto the receiving tube 4. This is the first displacement stage and causes the yarn to be laid down as a reserve winding W". The inclined blade 36 that moves with the bar 16 eventually causes the filament 7 to lie in a notch 42 in the guide plate 38. As the bar 16 is shifted further in the direction C, a pin 56 on the bar 16 advances along an arm 55 of the lever 52 to cause the guide plate 38 to swing in the direction S. This causes the filament to be traversed to the left to produce reserve windings W' that cover some of the previous reserve windings W". As the guide plate 38 swings in the direction S the inclined surface of the blade 36 causes the filament 7 to ride-up the guide plate 38 until the filament snaps over the top edge of the guide plate 38 and thus moves freely to the right to lay down further reserve windings W having a large helical angle. In Fig. 11 the pin 56 on the bar 16 is shown in a setting in which it is about to advance along an arm 58 of the lever 52, the arm 58 being shaped as shown. Such shaping causes the lever 52 to oscillate and so lay down the extra layers Wz of reserve windings shown in Fig. 12.
Patent GB-891648-A (GB)
Title: Apparatus for transferring fluidized solids
IPC: C22B1/10
Filed: 1960-11-04
Abstract: 891,648. Pneumatic conveyers. UNITED STATES STEEL CORPORATION. Nov. 4, 1960 [Nov. 12; 1959], No. 38008/60. Class 78 (1). Fluidized solids B1 are transferred from a lower pressure vessel 10 to a higher pressure vessel 12. Inlet gas passes via line 15 and rises through a perforated partition 14 to pass through the solids B2 in the vessel 12. Output gas from vessel 12 passes through a dust collector 18 to a line 16 connected to the chamber 10. The gas then passes through a perforated partition 13 and through the solids B1 and thence to an outlet line 17. The solids B1 enter the chamber 10 at 19 and pass out through a pipe 20 to a Venturi 23 leading to the chamber 12. As described the apparatus is used for iron ore reduction, the inlet gas being a reducing gas such as hydrogen at a reaction temperature of 1400‹ F. The iron ore fines introduced to chamber 10 are preheated to a temperature of 1600‹ F.
Patent GB-822156-A (GB)
Title: Improvements in rotary fluid pumps or compressors
IPC: F04B19/02
Filed: 1956-12-13
Abstract: 822,156. Rotary pumps or compressors. MEGATOR PUMPS & COMPRESSORS Ltd., and McCOMBIE, F. W. Dec. 10, 1957 [Dec. 13, 1956], No. 38125/56. Class 110 (2). [Also in Group XXIX] A pump or compressor as described in Specification 592,432, having a casing 1 in which a rotor 3 is eccentrically mounted to rotate within a chamber or shoe 4 slidable over inlet and outlet ports 6a, 7 is provided with a non-return valve 9 closing the discharge port 7 until the pressure in the chamber 4 exceeds the delivery pressure. The chamber 4, which is of resilient material such as rubber, has inlet and delivery ports 5 brought into register with the suction ports 6a and discharge port 7 as the shoe is reciprocated by rotation of the eccentric 3. The valve 9 is a flap valve moulded from rubber or other resilient material around a metal insert 10a, which has a spigot 11 extending through a washer 12. The valve is anchored to the pump cover 10, which is recessed to house a spring 14 bearing against a shoulder of the washer 12 to bias the valve to the closed position. Specifications 616,618, 617,750, 622,792, 639,017, 732,167, 822,155, [Group XXIX], and 822,157 also are referred to.
Patent GB-1105671-A (GB)
Title: Bucket tipping device
IPC: A47J47/18
Filed: 1965-09-08
Abstract: 1,105,671. Tipping buckets. F. PAYNE. 8 Aug., 1966 [8 Sept., 1965; 28 Feb., 1966], Nos. 38299/65 and 8613/66. Heading B8E. [Also in Division A4] An attachment for facilitating the tipping of buckets comprises telescopic members 2, 6, Fig. 1, which are pivoted to the bottom of the bucket by a clamp and screw 10, 11a and a handle 4. The handle 4 is pulled upwards to release a clip 12 from the edge of the bucket which can then be tipped by the handle 4 and its own handle. Fig. 3 illustrates an embodiment in which the handle is permanently attached to the bucket by pins 28 which slide in slots 26. Both bucket and handle 20 are of synthetic plastics material. The handle may be attached by a simple pivot and be a push-fit between two lugs which retain it in the out of use position. Alternatively the handle may be attached to the bucket bottom by a quick-release spring clip.
Patent GB-994405-A (GB)
Title: Non-flammable vinylidene chloride polymer compositions
IPC: C08J7/052
Filed: 1963-09-30
Abstract: Coating compositions comprise a substantially uniform crystalline copolymer of 81 to 86% by weight of vinylidene chloride and 14 to 19% by weight of vinyl chloride dissolved in trichloroethylene or tetrachloroethylene.  The copolymer may contain a minor proportion of a copolymerized organic acid, e.g. acrylic or methacrylic acid.  The homogeneous copolymers may be prepared by bulk polymerization to low conversion, emulsion polymerization or continuous polymerization. The compositions may be used for coating films, e.g. of regenerated cellulose, polyethylene, polypropylene, polytetrafluoroethylene, polyethylene terephthalate and hydroxyethyl cellulose, paper, cardboard, chipboard, wallboard, wood, plywood and cotton and rayon textiles.  In examples vinylidene chloride and vinyl chloride are bulk polymerized to 10% conversion in the presence of azobisisobutyronitrile and the copolymers dissolved in (1) trichloroethylene and (2) tetrachloroethylene.ALSO:Substrates are coated with lacquers comprising a substantially uniform crystalline copolymer of 81-86 weight per cent vinylidene chloride and 14-19 weight per cent of vinyl chloride dissolved in trichlorethylene or tetrachlorethylene.  The copolymer may contain a minor proportion of copolymerized organic acid, e.g. acrylic or methacrylic acid.  The compositions may be used for coating films of regenerated cellulose, hydroxyethyl cellulose, polyethylene, polypropylene, polytetrafluoroethylene or polyethylene terephthalate; cotton and rayon textiles; paper, including paper cartons; cardboard; chipboard; wallboard; wood, including wooden vats and plywood.  In examples solutions of vinylidene chloride/vinyl chloride copolymers in (1) trichlorethylene and (2) tetrachlorethylene are coated on regenerated cellulose films.