baber/WOPTO huggingface dataset:
Patent GB-863367-A (GB)
Title: A control element for lubricating systems
IPC: F16N29/04
Filed: 1957-06-03
Abstract: 863,367. Force-feed lubricating. SATZGER, E. June 3, 1957 [June 2, 1956], No. 17600/57. Class 12 (3). In a lubricating system in which the pressure is intermittent or in which the pressure pulsates, a combined flow restriction and flow indicator comprises a plunger 3 located with clearance 6 in a cylinder 1 and having a stem 9 which projects through a bore in a screw cap 8 located at the end of the cylinder 1. Lubricant under pressure supplied through a bore 4 moves the plunger 3 upwardly, against the action of a spring 7, and becomes throttled as it passes through the clearance 6 to be discharged through the bore 5. When there is no lubricant flowing, the stem 9 is adapted to be retracted from view. Instead of having a uniform diameter, the cylinder may taper gradually or be stepped in the direction towards the top of the cylinder. In a modification, a plunger 17, Fig. 4, carries a cup-shaped sealing washer 18 which has a good sealing fit with a cylindrical bore 19 and a throttling flow section consists of a bypass 21 fitted with an adjustable needle valve 22. The stroke of the plunger 17 is elastically limited by a stop spring 23. If the lubricant pressure rises excessively, the plunger rises to its upper position so that a construction 24 on the stem 9 bridges a sealing ring 10 and permits lubricant to escape through the bore in the screw cap 8, thereby giving warning of a fault in the system. In a further modification, the plunger comprises a cup-shaped washer 33, Fig. 6, having a collar 34 which bears lightly against the cylinder wall so that lubricant under pressure may pass through the throttling gap 61.
Patent GB-1006135-A (GB)
Title: Microporous moulded polymeric compositions and process for preparation thereof
IPC: C08K5/00
Filed: 1962-05-08
Abstract: Microporous moulded polyolefins are made by moulding a composition comprising a polymer of a 1-olefin and a plasticizer therefor, and then solvent-extracting the composition to remove the plasticizer therefrom.  The plasticizer may be either non-polymeric, e.g. an ester-type plasticizer, or may be polymeric, e.g. a polymer of styrene or alpha-methyl styrene. Polyolefins specified are polyethylene, polypropylene, ethylene-propylene copolymers and ethylene-butene copolymers. Preferably the polyolefin is one that has been modified by grafting thereon a monomer such as styrene, the grafting being effected by contacting finely-divided polyolefin with monomer, then polymerizing the monomer with the aid of a free radical catalyst.  The examples describe: (1) grafting styrene on to polyethylene and plasticizing the product with diisobutyl phthalate; (2) grafting methyl acrylate on to an ethylene/butene copolymer and plasticizing the product with diisobutyl phthalate or tricresyl phosphate; (3) grafting styrene on to an ethylene/butene copolymer and plasticizing the product with asphalt, with optional use of clay as a filler; (4-8) grafting styrene or a mixture thereof with methacrylic acid on to ethylene/butene copolymers, plasticizing the products with diisobutyl phthalate or white mineral oil, with titanium dioxide as an optional additive, and moulding the compositions into films which are made microporous by extraction with chloroform or toluene; (9) grafting styrene on to an ethylene/butene copolymer, removing ungrafted material by solvent extraction, plasticizing the product with dibutyl phthalate, and moulding the composition into a film which is made microporous by extraction with chloroform; and (10) blending polystyrene and an ethylene/butene copolymer, and moulding the blend into slab which is made microporous by extraction with xylene.  Specification 790,195 is referred to.
Patent GB-612982-A (GB)
Title: An improved process for embossing fabrics coated with polyvinyl compositions
IPC: B29C59/04
Filed: 1946-06-12
Abstract: 612,982. Embossing. GREENWICH LEATHERCLOTH CO., Ltd., and HUMPHREYS, R. G. June 12, 1946, No. 17647. [Class 100(ii)] A process for embossing a sheet of a polyvinyl chloride composition or a fabric coated with such composition, comprises heating the surface of the composition to softening point and impressing a design thereon by means of a roll bearing the design in reverse and working against a counter-roller under a light pressure substantially uniform across the width of the material, the roll surface being maintained at a temperature above 50‹C., and sufficiently lower than the softening point as to obviate sticking of the composition to the roll. The roll may be an engraved steel shell exchangeably mounted on a mandrel and at low working speeds normal dissipation of heat is sufficient to keep the temperature below the permitted upper limit, while at higher speeds, water is passed through the mandrel, the flow being regulated according to the desired temperature. Alternatively, the embossing roll may be of vulcanized hard rubber or of the substance known under the Registered Trade Mark " Bakelite." Specification 574,157 is referred to.
Patent GB-532114-A (GB)
Title: Improvements in or relating to electrical insulating material
IPC: H01B3/18
Filed: 1939-06-16
Abstract: 532,114. Resinous polymerization products. STANDARD TELEPHONES & CABLES, Ltd., and SCOTT, T. R. June 16, 1939, No. 17656. [Class 2 (iii)] [Also in Group VIII] Electrical insulating material is made by first esterifying fibrous cellulosic material such as paper, and then impregnating with polystyrene containing between 5 and 10 per cent. of a lowloss plasticizer, i.e. those described in Specification 490,814, e.g. α or # mono-amyl-naphthalene. The esterified material may be impregnated with monomeric styrene and polymerized in situ, as described in Specifications 454,923 and 509,836. Preferably the cellulosic material is acetylated to the extent of containing between 15 and 25 per cent. of combined acetic acid. Specification 525,265 also is referred to.
Patent GB-1268512-A (GB)
Title: Supersonic nozzles
IPC: F23D11/38
Filed: 1969-04-03
Abstract: 1,268,512. Spray producers. ENERGY SCIENCES Inc. 3 April, 1969 [3 April, 1968; 3 June, 1968], No. 17669/69. Heading B2F. [Also in Division F4] A spray nozzle for supersonic flow comprises a conduit having an inlet and an outlet and a throat plane stabilizer intermediate thereof, the conduit having an inlet minimum diameter of at least twice the effective throat diameter. In one form Fig. 6 stabilisation is by means of air imploded through four ports 40 and by means of a sharp ring 42. In a nozzle for an aerosol can Fig. 8 gas is provided under pressure through an orifice 92 and an annular zone 80 provides air for implosion through holes 82, the air entering the zone 80 through passages 78 between the outer tubular housing 70 and an inner member 72. In a further modification Fig. 11 the nozzle unit comprises a housing 112 and a body 114 having an inlet aperture 124 and holes 130 communicating with a manifold 132 fed through zones defined between flats (134) of the inlet portion 120 of the body 114 and the housing inner surface.
Patent GB-1393217-A (GB)
Title: Conveyor system
IPC: B65G47/48
Filed: 1973-04-12
Abstract: 1393217 Endless conveyers SANDCO Ltd 12 April 1973 [22 April 1972] 17691/73 Heading B8A The spacing of articles of luggage on a main conveyer belt 11 provided with feeder belts 1a-10a from check-in desks 1-10 is controlled by gates 20 provided at each feeder belt. The belt 11 is of steel and at one edge is provided with a magnetic control channel having equally spaced magnetic spots 17 produced by a magnetizing device 16. The spacing of these spots normally corresponds to the spacing required between the articles. At the junction between each feeder belt and the belt 11 a device 18 counts the spots 17 and controls the opening of the gates 20; a device 19 erases the spots 17. In operation, the counting device 18 of belt 1a causes the gate 20 to open when every tenth spot 17 is counted by the device 18. The device 18 of belt 2a opens its associated gate when every ninth spot 17 is counted, and so on. The erasure of a spot 17 when an article has been transferred on to the belt 11 ensures that no other article is transferred into that position. Erasure of all remaining spots 17 is effected by a device 22 at the end of the upper run of the belt 11. The number of spots 17 counted by each device 18 before an article is released may be increased by any required multiple. The discharge of an article 15 from the belt 11 to a belt 13 is controlled by magnetic devices 1b, 2b which produce a magnetic spot in a respective channel 21 in accordance with data provided at check-in desks 1-10. Devices 14a, 14b, controlled by the magnetized spots of the channels 21, deflect the articles off the belt 11. In place of the belt 11, a belt having perforations through which air jets pass may be used. Alternatively, electric contacts may extend through perforations which may be covered. Projections on the belt may be sensed mechanically. A magnetic tape driven synchronously with the conveyer belt may be used for the control. As an alternative to a gate 20, the movement of the feeder belt may be stopped to prevent luggage being placed on to the belt 11.
Patent GB-1041273-A (GB)
Title: 13-alkyl-8,14-secogonanes
Inventor: HUGHES GORDON ALAN
IPC: C07J1/00
Filed: 1963-05-06
Abstract: The invention comprises compounds of formula <FORM:1041273/C2/1> wherein X is a 1-tetralylidene group, and R1 is an alkyl group, and their preparation by condensing a 1-vinyl-1-hydroxy-tetralin with the corresponding 2-alkyl-cyclopentane-1,3-dione. The products may be substituted at the 1-, 2-, 3-, 4-, 6- or 7-positions of the seco-steroid nucleus, for example by a hydroxy or etherified hydroxy group at the 3-position or by alkyl groups having up to 4 carbon atoms at the 6- or 7-positions.  1-Vinyl-1-hydroxy-tetralins are prepared by reaction of the corresponding tetralone with vinyl magnesium chloride.  6-Benzyloxy- and 21-tetrahydropyranyloxy-1-tetralones are prepared by etherifying 6-hydroxy-1-tetralone.  3-Methyl-6-methoxy-1-tetralone is prepared by cyclizing 3-m-methoxybenzyl-butyric acid.  3-m-Methoxybenzyl-butyric acid is prepared by hydrogenating ethyl 3-m-methoxybenzyl-but-2-enoate and hydrolysing the ester group.
Patent GB-881325-A (GB)
Title: Improvements in or relating to liquid flow control valves
IPC: F16K3/34
Filed: 1957-06-05
Abstract: 881,325. Valves. PNEUMATIC CONVEYORS (HUDDERSFIELD) Ltd., and BARRACLOUGH, E. C. July 22, 1958 [June 5, 1957], No. 17879/57. Class 135. A liquid flow control valve comprises a rotary disc 24, Fig. 1, formed with a crescent-shaped opening 30, of Fig. 2 progressively varying width which co-operates with a slotted port 31 in a nipple screwed into the valve body 23 to vary the flow between a body inlet 26 and an outlet 32 on rotation of a shaft 21. A spring 33 and inlet pressure urges the disc against face 23a of the valve body. Specification 881,324 is referred to.
Patent GB-654295-A (GB)
Title: Improvements in or relating to damping mechanism for helicopter rotor blades
IPC: B64C27/00
Filed: 1946-06-14
Abstract: 654,295. Rotary wing aircraft. UNITED AIRCRAFT CORPORATION. June 14, 1946, No. 17899. Convention date, July 19, 1945. [Class 4] [Also in Group XXXII] Damping means for preventing vibrations in the rotor blades of a helicopter from affecting the controls are incorporated in the control linkage. The rotor head 10 shown comprises a plate 12 rotated by the driving-shaft 14 and carrying blades 26 by means of the usual draglinks and pitch-change bearings. The pitch of each blade 26 is controlled by a member 28 universally-jointed at 30 to a rod 30 connected by a universal joint 34 to a link 36. The links 36 are pivoted at 38 to a central rod 42 which may be raised and lowered under the control of a lever 44 to vary the mean pitch of the blades, and at 50 to rods 52 mounted at 54 in a ring 56 mounted by gymbals 58 on the shaft 14 and controlled in inclination to effect cyclical changes of pitch by a non-rotating member 60. The member 60 is controlled through linkages 64, 84, 80 and 64, 82 from a control member 66. The damping means may comprise pendulums 70 each comprising a pair of laterally-spaced arms 72 mounted on the rotating ring 56 to swing about horizontal pivots 74 and carrying a weight 76. The positions of the pivots may be varied, as indicated by broken lines, and the positions of the weights 76 on the arms 72 may be varied; it is stated that by this means it is possible to adjust the position of the weight on the arms 72 to absorb vibrations of one frequency and so to adjust the mass-distribution of the member 56 by moving the pivots 74 as to absorb vibrations of another frequency. Alternatively the damping means may each comprise (see Group XXXII) a tube mounted to slide vertically on one or both of the rods 52, 64 and is biassed by springs disposed within the tube so that vertical vibrations of the rods are damped. When the tubes are mounted on the rods 52, the centrifugal force affects the solid friction between the moving parts to vary the damping effect with speed. Specification 651,139, [Group VIII], is referred to.
Patent GB-766691-A (GB)
Title: Improvements in and relating to elevated structures for handling material
IPC: E04G21/04
Filed: 1954-06-18
Abstract: 766,691. Staiths for loading and unloading. ANDRIANI, N. June 18, 1954 [June 30, 1953], No. 17917/54. Class 78 (4). A jib 17 capable of radial movement relative to a tower 1 carries an endless conveyer 18 for pouring over the end of the jib semi-fluid or pulverulent material raised to the jib from the foot of the tower by a screw-conveyer. As illustrated the jib also carries hoisting tackle 36, 39, 37. The material is raised by a series of screws mounted in the tower and each delivering to the next above. The uppermost screw 5 is mounted on the slewing axis of the jib 17 so that in all positions of the jib it can deliver material to a hopper 11 feeding a screw 6 carried by a slewing frame 12 and delivering to the troughed endless belt 18 the tail wheel 19 of which is driven by a motor mounted in the jib. The jib is mounted to run on rollers 16 in the slewing frame 12 and is extended and retracted by a motor 29 carried by the slewing frame 12 and driving a sheave 31 round which is wrapped a rope 32 secured near the opposite ends of the jib. The jib and frame 12 are slewed by a screw mounted in the tower and engaging a worm carried by the slewing frame 12. The winch 40 for the hoisting gear is driven by a motor 41 carried by the jib.
Patent GB-797215-A (GB)
Title: Improvements relating to warp knitting machinery
Inventor: PORTER ALAN WILLIAM HENRY
IPC: D04B23/00
Filed: 1955-06-21
Abstract: 797,215. Knitting-machines. F.N.F. MACHINERY MANUFACTURING CO., Ltd. June 11, 1956 [June 21, 1955], No. 17963/55. Class 74 (2). The warp guides 17, 18, 19 of a warp machine are pivotally mounted on a pivoted arm 22 and are oscillated by an eccentric 31 through an arm 20 so that their movement is or is near elliptical as illustrated by curve x of Fig. 7, the movement of the guides between the points d and e being in an upward direction as they are moved towards the front of the needles so that this upward movement coincides with the final portion of the upward or raising movement of the needles. Simultaneously during this upward movement of the guides and needles, shogging of the guides is commenced at h, curve y, Fig. 7, and is completed at j just after the needles commence their downward movement. Curve yshows the movement of the needles relative to the guides positioned at point k. This combined movement of needles and guides ensures the laying of the yarns in the hooks of the needles during the time when the tongues are retracted and the hooks are open and when there is very little relative movement along the line of the needle shanks between the guides and needles. The needles, needle tongues and sinkers are all operated by eccentrics from a shaft 7. Specification 524,969 is referred to.
Patent GB-1464464-A (GB)
Title: Drill comprising a tubular drill string and apparatus releasably connectable to the bottom of said drill string
IPC: E21B10/32
Filed: 1974-04-25
Abstract: 1464464 Drilling tools MINDRILL Ltd 25 April 1974 18071/74 Heading E1F A drill tool of the type capable of being run into and retrieved through a drill string is shown as including a core barrel 25 with a core bit 30 for drilling a hole which is reamed to a site to suit the drill string by cutter elements 68 carried by a tubular member 28 forming part of a central tubular assembly 27 axially movable within an outer tubular assembly 52 connected to the core barrel via a fitting 57 incorporating a detent ring 122, 123 adapted to retain the central assembly 27 in an upper position in which the cutter elements are retracted through radial windows 66 by fingers 84 pinned to member 28. The central assembly 27 carries a spear head 41 and can support the outer assembly 52 via shoulders 140, 141 during introduction or retrieval of the tool. The tool can be run in on a wireline, in which case the spear head will be in an upper position supporting the central assembly 27 via shoulders 47, 49 and allowing bypass flow via slots 120 and ports 125. Alternatively, the tool can be dropped through the drill string and in this case the bypass flow is allowed by a check ball 111. When the tool arrives in position, the outer assembly 52 engages a seat 61 in the drill string and although the central assembly 27 initially remains held in its upper position by the detent ring, the spear head is depressed by spring 44 to block the upper end of the outer assembly 52 so that the central assembly can be pumped downwards to cam the cutter elements 68 outwards to positions in which they are engageable by the lower end of the drill string 26 which can thereby be used to apply weight to the core bit 30. The downward movement of the central assembly is limited by abutment of shoulder 113 against member 121, and in the lower position of the central assembly a necked portion 114 of the spear head aligns with the top of the outer assembly 52 to permit flow of drilling fluid into radial ports in the central assembly. Downward movement of the central assembly 27 also functions to release dogs 92 which are then moved by springs through windows in the outer assembly and which engage in windows 108 in the drill string, upon rotation of the latter, and thereby serve to transmit drill string rotation to the tool. When the tool is to be retrieved, it is first lifted slightly by the drill string, via shoulders 59, 61 to break the core, and then the spear head is engaged by a wireline overshot and moved upwards to abut the central assembly (at 47, 49) and lift the latter to retract the dogs 92 and the cutters 68. The central assembly 27 eventually abuts the outer assembly 52 at 140, 141 and lifts the latter, the required bypass flow being permitted by slots 120 and ports 125. The tool may alternatively employ a solid bit in place of the core barrel.
Patent GB-794919-A (GB)
Title: Conductively coated electrodes and method of making same
IPC: H01M6/42
Filed: 1955-06-22
Abstract: An electrically-conductive, fluid-impervious coating is formed on a metal surface by applying a molten non-conductive material which has carbon particles dispersed therein to the surface while it is heated to at least the temperature of the said mixture, the coated surface then being cooled to solidify the said coating. The metal surface may previously have been cleaned, as by weak bright pickling or wire brushing, and then rubbed with carbon. The coating material may be a mixture of carbon, e.g. battery grade graphite with paraffin or ceresin wax, a waxgilsonite mix, e.g. a mixture of rosin, beeswax and gilsonite, or tars or asphalt and may be applied by brushing or dipping.  After cooling, additional carbon particles may be incorporated into the coating by sprinkling them thereon and heating the surface to at least the melting-point of the coating.  The invention is described as applied to the production of a coating of a cathode contact coating on magnesium sheet which is to form the anodes of stacked cell batteries (see Group XXXVI) but it may also be applied to the coating of copper, zinc, steel and other metals. U.S.A. Specification 2,547,907 is referred to.ALSO:A bright pickling solution for magnesium comprises a solution of chromic acid, sodium nitrate and calcium or magnesium fluoride in water.  U.S.A. Specification 2,547,907 is referred to.
Patent GB-590338-A (GB)
Title: An improved process for the catalytic conversion of hydrocarbon oils
IPC: B01J21/16
Filed: 1944-09-22
Abstract: Alumina-containing catalysts for the conversion of hydrocarbon oils are activated by maintaining for several hours at a temperature of 1,200-1,600 DEG F. in a moisture-free atmosphere, particularly in a current of dry air.  Catalysts of alumina and molybdenum oxide, and of alumina and silica are mentioned.
Patent GB-530352-A (GB)
Title: Improvements in, and connected with, electrical fuses
IPC: H01H85/15
Filed: 1939-06-22
Abstract: 530,352. Fusible cut-outs. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. June 22, 1939, No. 18169. [Class 38 (i)] A cartridge fuse has removable end caps for rewiring, the end caps d having a split cylindrical wall with an annular groove f for a spring ring g. The caps clamp the fuse wire c against reduced ends a<1> of the cartridge a. The ends of the cartridge may abut on insulating discs h in the caps. One cap may be secured by a rivet k. to an insulating knob j, the rivet also securing a contact member i with side limbs i<1>.
Patent GB-882935-A (GB)
Title: Improvements in or relating to apparatus for the heat treatment of articles
IPC: C21D1/767
Filed: 1959-05-28
Abstract: 882,935. Heat treatment furnaces. GREENE, B. May 27, 1960 [May 28, 1959], No. 18270/69. Class 51 (2). A cylindrical heat treatment furnace of the forced convection type has a fan chamber 29 connected to roof and side ducts 19 opening into the treatment chamber by ports 20, a door 13 formed with a concavity 39 having a passage 41 to a heat exchanger 30 connected by a duet 28 to the fan chamber, and electric heating elements 8 suspended by conductors 9 in said ports 20. The shell comprises steel sections 10 lined with refractories 14 and 17 respectively formed with holes for suspension rods 15 and 18 attached to said shell. The hearth consists of steel plates 40 covered by refractory blocks 35 arranged to form channels 36 acting as air ducts, and also, if necessary, receiving the arms of a fork lift charging truck. Atmosphere gas, e.g. hydrogen, helium, nitrogen or argon, is supplied under pressure from a holder 51 and after use may pass through purifying and drying chambers on the inlet side of a pump 35. A vacuum pump 45 has a connection 46 either to duct 28 or to the treatment chamber. Air passages may extend from the fan outlet duct 26 through end wall 24 into the treatment chamber. Specification 867,249 is referred to.
Patent GB-186723-A (GB)
Title: Improvements in and connected with the stowage and launching of ships' life boats
IPC: B63B23/18
Filed: 1921-07-07
Abstract: 186,723. Graham, J. July 7, 1921. Stowing boats; chocks; davits. -The boats a are disposed along the side of the boat deck with their centre-lines transverse or oblique to the centre-line of the ship. Single sluing davits e are placed at the side of each boat or between the sides of pairs of adjacent boats the axes of the davits being outboard of the line' extending parallel to the ships side and passing through the centres fore and aft of the boats. Where the davits are disposed between pairs of adjacent boats, an inboard swing through 120‹ carries the davit-head from the centre of one to the centre of the other boat. The chocks are connected by an oblique, longitudinally slotted keel bar.