baber/WOPTO huggingface dataset:
Patent GB-832092-A (GB)
Title: Elastic coupling
IPC: F16D3/68
Filed: 1957-02-19
Abstract: 832,092. Universal joints; positive clutches. REICH (nee HELLBRUGGE), M. Feb 19, 1957 [Feb. 23, 1956], No. 5536/57. Class 80 (2). A universal joint, or a positive clutch allowing universal movement between its driving and driven members, comprises rubber or similar material pads between interdigitating claws or the like on the driving and driven members, at least two of the pads being connected by a cross-piece forming a saddle, and a sleeve surrounding the device. In one form, flanges 1a, 1b, Fig. 1, on driving and driven hubs carry interdigitating bolts 2a, 2b, between each pair of which is interposed a pad of rubber constructed as inwardly directed projections on rings 4, Fig. 3, split at 3. A number of the rings 4 lie side-by-side but are turned relatively to each other so that their slots do not coincide. A sleeve 7 holds the rings 4, &c. in place. The pins 2a, 2b are so arranged that the driving and driven members can easily be separated by relative radial movement. As a modification, each pin 2a, 2b may be given a slight barrel shape and be surrounded by a cylindrical metal sleeve, Fig. 4 (not shown). In another form, pins 9, 11, Fig. 5, on driving and driven hubs engage between pins 14 fast on an intermediate disc 13 centred between the hubs by a pin 17 and bearings 18, the spaces between the pins 9, 11, 14 containing rubber &c. pads as before. Sleeves 15, 16 hold the pads in place. In a further modification, comprising a positive clutch, claws 22, Fig. 6, on a sleeve 23, which can be slidden axially on a hub 24, engage in recesses between saddleshaped rubber members 29, Fig. 8, bestriding claws 21 on a hub 20. The rubber members 29 are formed with recesses 31, 32 in order that they may be more easily compressed, and recesses 33 may be formed in a surrounding sleeve 26 for the same purpose. One of the hubs may be in the form of a flange, Fig. 9 (not shown), secured to a machine part. The surrounding sleeve may be made from a polyester resin or polyamide reinforced with glass fibres.
Patent GB-965381-A (GB)
Title: Process for producing plastic bottles and apparatus therefor
IPC: B29C49/02
Filed: 1963-02-11
Abstract: 965,381. Moulding thermoplastic bottles. DOW CHEMICAL CO. Feb. 11, 1963 [Feb. 14, 1962; Jan. 14, 1963], No. 5538/63. Heading B5A. In a process for moulding plastic bottles a known quantity of flowable plastic material 94 is placed in a cylindrical chamber 96, defined by the upper walls of a hollow piston 32 enclosed in the mould cavity 16 of mould halves 10, 12, a plunger 36 then being moved downwardly through an opening 19 forming the neck mould into the chamber 96 thus compressing the material 94 and forcing it to completely fill the space between the plunger 36 and walls of piston 32 and also the neck portion of mould 10, 12, after which the piston 32 is retracted through an opening 30 in the base of the mould and compressed air or other fluid introduced to a chamber 88 forming part of the plunger 36 and through holes 90 therein to expand the plastic preform to the shape of the mould cavity 16. In an alternative apparatus for carrying out the process the chamber 88 has a spring-loaded poppet-valve 100 in its lower end in place of holes 90 for allowing passage of fluid for the expansion of the preform, Fig. 9 (not shown). Both the plunger 36 and the hollow piston 32 are moved by means of air operated piston-andcylinder arrangements, Fig. 5 (not shown). The mould halves 10, 12 may be water cooled.
Patent GB-1416366-A (GB)
Title: Method for manufacture of heat-resistant fibres
IPC: D01F9/21
Filed: 1973-02-05
Abstract: 1416366 Heat-resistant fibres AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 5 Feb 1973 [3 Feb 1972 23 March 1972] 5666/73 Heading B5B [Also in Division C1] In manufacturing heat resistant fibres, organic polymeric fibres are heated to a temperature in the range 170‹ to 350‹ C. in an atmosphere containing 25% or more by volume of oxygen gas and at least 0À5% by volume of a Brondstedt or Lewis acid which is gaseous at ambient tempera. tures. The fibres so obtained may be further heated in an inert atmsophere to a temperature in the range 180‹ to 3000‹ C. when carbon or graphite fibres may be obtained. The concentration of oxygen may be from 25% to 99À5% by volume, and the acid may be in a concentration of from 0À5 to 50% by volume. The preferred acid is HCl and tension may be applied to the fibre during treatment. The starting fibre may be partially oxidized by previous heating in an oxygen containing atmosphere. The fibre used may be an acrylic fibre, or one derived by dehydrating polyvinyl alcohol or polyvinyl chloride.
Patent GB-511271-A (GB)
Title: Improvements in pneumatic tyre treads
IPC: B60C11/02
Filed: 1939-02-20
Abstract: 511,271. Pneumatic tyres. UNITED STATES RUBBER CO. Feb. 20, 1939, No. 5672. Convention date, Feb. 25, 1938. [Class 144 (ii)] The endless ribs 5 of a grooved tread are provided with spaced incisions 6 extending from the tread surface to about half the depth of the ribs, and a second series of incisions 7 disposed between the original tread surface and the bottoms of the grooves 4 so as to provide an effective non-skid surface throughout the life of the tyre.
Patent GB-1382446-A (GB)
Title: Seat reclining mechanisms
IPC: A47C1/026
Filed: 1972-02-08
Abstract: 1382446 Adjustable seat backrests BIRNAM PRODUCTS Ltd 31 Jan 1973 [8 Feb 1972 29 June 1972] 5713/72 Heading A4J 30416/72 [Also in Division E2] In a mechanism for adjusting the inclination of the backrest of a vehicle seat, a seat plate 15 and a backrest plate 20 are pivotally connected at 21, the backrest plate 20 is provided with a rack in the form of a curved row of teeth 33 centred on the pivot axis 21 and the seat plate 15 is provided with a linearly moveable slide 37 having teeth 40 biased into engagement with the rack by a spring 42 and moveable out of engagement by a member 47 pivotally connected to the seat plate and having teeth 49 co-operating with a rack 46 on the slide. The teeth 49 and rack 46 may be replaced by an eccentric cam lobe (74), Fig. 4, (not shown) on the member 47 engaged in a recess in the slide or by a pin (81), Fig. 5, (not shown) on the slide engaged between a pair of eccentric parallel arms (84) in the member 47. The mechanisms at each side of a seat may be interconnected by a rod 48 or a Bowden cable (64), Fig. 3, (not shown). In the modification shown in Fig. 6, linear movement of the slide 137 is angularly offset from the pivot axis 121 of the two plates and the slide is urged into mesh with the rack 133 by a wedge 173 engaged with a wedge surface 138 in the slide, movement of the wedge into and out of engagement with the slide being effected by co-operating parts on the wedge and member 147.
Patent GB-1511949-A (GB)
Title: Epoxy curing agents
IPC: C08G59/18
Filed: 1976-02-16
Abstract: Adducts are prepared of a mixture of 4,4'-diaminodiphenylmethane and xylylenediamine with an epoxy compound. They are obtained by reacting an amine mixture of 4,4'-diaminodiphenylmethane and xylylenediamine in a molar ratio of from 2:3 to 3:2 with a glycidyl compound of mono- or polyhydric phenols or alcohols in a ratio of from 1 to 4 mol of amine mixture per epoxy equivalent. Heat is supplied to the system. The adducts mentioned can be used for curing epoxy compounds.
Patent GB-902337-A (GB)
Title: Improvements in or relating to solvent extraction processes
Inventor: MADDOCK ALFRED GAVIN
IPC: B01D11/04
Filed: 1959-02-20
Abstract: Complex metal anions (i.e. halo-, nitrato- and sulphato-complexes) are extracted from aqueous acidic solution by contacting the aqueous solution with a mixture of a water-insoluble primary or secondary alcohol capable of extracting the anions from aqueous solution and a liquid immiscible with water and having a higher dielectric constant than the alcohol. The liquid of higher dielectric constant may or may not be a solvent for the metal anion.  Metals mentioned are iron, gold, niobium, tantalum, uranium and protoactinium.  In examples, solutions of protoactinium in aqueous hydrochloric acid are contacted with mixtures of diisopropyl carbinol with diisopropyl ketone, diisobutyl ketone, acetophenone, nitromethane, nitrobenzene, benzonitrile or 2,2-dichlorodiethyl ether, and a solution of ferric chloride in aqueous hydrochloric acid is contacted with mixtures of diisopropyl carbinol with nitromethane. Other alcohols mentioned are sec-octyl alcohol and diisobutyl carbinol.  The mixture may also include an inert diluent, e.g. benzene, kerosene or carbon tetrachloride.  The metals may be in other aqueous solutions in which anionic complexes of the metals are formed, e.g. nitric and sulphuric acid solutions.
Patent GB-1130807-A (GB)
Title: Improvements in or relating to containers
IPC: B65D75/32
Filed: 1967-02-08
Abstract: 1,130,807. Bubble packs. HASSIA VERPACKUNGSMASCHINEN G.m.b.H. 8 Feb., 1967 [8 March, 1966], No. 6044/67. Heading B8C. Relates to a container, and a process for making it, wherein a cardboard backing, e.g. 1 or 8 has an aperture, e.g. 3 formed in it by cutting out and folding back at least one flap, e.g. 2 or 9 or 10, a plastics foil, e.g. 4 or 11 being drawn through the aperture and sealed on to the cardboard backing and flap, and a closure foil, e.g. 5 being sealed over the aperture. As described, see Fig. 4, a continuous cardboard strip 21 is delivered from a roll 22 to a stamping station 23 where apertures are formed by threesided stamping out of flaps 24. The strip 21, which is preferably coated with heat sealable material, is led into a station 27 where a foil 26 is deep-drawn through each aperture and sealed to the strip 21 and flap 24. At stations 29, 30 the container is filled and a closure film 31 applied to the aperture; finally the container is severed from the backing strip 21. The container may be formed with fold lines 7 to facilitate expulsion of the contents by squeezing, Fig. 1. An aperture 12, preferably of the tear-off kind, may be provided in a flap. The container interior may have an inert gas atmosphere.
Patent GB-693938-A (GB)
Title: Improvements in or relating to co-polymeric organosilicon resins
IPC: C08G77/50
Filed: 1951-03-13
Abstract: An organosilicon copolymer containing units of the average general formula <FORM:0693938/IV (a)/1> in which the average number of oxygen atoms per unit is from 1.5 to 3, and of the average general formula <FORM:0693938/IV (a)/2> there being at least 5 per cent (by weight) of the former and at least 10 per cent of the latter, may be made by cohydrolysing a mixture of one or more methylene-silanes of the formula <FORM:0693938/IV (a)/3> in which the average number of chlorine atoms per molecule is from 3 to 6, and of one or more silanes of the formula RnSiCl4-n, and co-condensing the resulting hydrolysis product.  In the above formul  a, b, c, x and n each have values from 0 to 2 inclusive and R is an alkyl or monocyclic aryl radical.  The hydrolysis and condensation is preferably conducted in the presence of a solvent such as toluene, and with or without a catalyst.  The reactants may be mixed with alcohol and the resulting alkoxy silane hydrolysed and condensed.  The resins containing from 1.3 to 1.5 oxygens per silicon atom are useful in moulding compounds, which are preferably made by mixing a solution of the resin with a filler, e.g. calcium carbonate, asbestos or glass fibre, and drying and grinding the resulting mixture.  The resins containing 0.9 to 1.4 oxygens per silicon are useful as paints or enamels for coating hot apparatus such as furnaces, stacks and boilers.  Examples are given.ALSO:Methylene silanes or polysilcarbanes of the general formula <FORM:0693938/IV (b)/1> in which the average number of chlorine atoms per molecule is from 3 to 6 and wherein a, b, c and x each have values from 0 to 2 inclusive, may be made by reacting a mixture of silicon tetrachloride (1 mol.) and trimethylchlorosilane (2 mols.) at 400 DEG  C., at a pressure sufficient that at least a portion of the reactants are present as a condensed phase, and in the presence of a Friedel-Crafts type catalyst, e.g. aluminium chloride or boron chloride.  Fractionation of the residue remaining after removal of unreacted silanes and by-products yields di-, tri-and tetra-silcarbanes.  Compounds of the above formula in which a and b have values of 1 and 2 and x is 0, may be prepared from Cl3SiCH2SiCl3 (which compound is disclosed in U.S.A.  Specification 2,381,000) by reacting it with 1 to 4 mols. of a methyl or phenyl Grignard reagent. Compounds of the above formula in which a and b have values of 1 and 2 are disclosed in Specifications 624,551, 672,824 and 672,825.  An example (8) is given.
Patent GB-124442-A (GB)
Title: Improved Pilot Director and Bomb Dropping Sight for Aircraft.
Inventor: BOETTCHER ARTHUR HENRY
IPC: F41G3/24
Filed: 1919-03-11
Abstract: 124,442. Boettcher, A. H. March 11, 1918, [Convention date]. Sights and methods of sighting.-Relates to bomb-dropping sights of the kind in which the observer can convey information to the pilot whose view of the objective is obstructed, and consists in a movable sighting-member adapted to be operated by the observer and having an extension visible to the pilot through a sighting field. In the construction shown, the apparatus comprises a movable sighting tube or bar 6 and an indicator ball 10 or the like carried by the tube 6. The tube 6 is mounted universally on a support 7, and the observer keeps it sighted on the objective. The ball 10 is within the view of the pilot and is viewed by him through a frame 11 carrying vertical and horizontal cross-wires, the horizontal one being vertically adjustable. The support 7 carries a clamp 13 in which a rod 12 having a ring 14 holding a disk of tinted glass is slidable, and the support 7 and rod 12 are graduated for heights and speeds respectively. The clamp 13 may also have graduations representing rear and head wind speeds. The position of the ring 14 is adjusted, preferably before a6cent, in accordance with the heights and speed at which the aeroplane is to fly, and the horizontal crosswire is adjusted so that the pilot sees the ball 10 in coincidence with the intersection of the cross. wires when the tube 6 is sighted through the ring 14. When in flight, the observer keeps the objective sighted, and the pilot steers so that the ball appears to travel along the vertical crosswire. When the ball appears at the intersection, the tube 6 also becomes sighted through the ring 14, and the pilot and observer are each aware that the bomb should be released. The ball 10 may be carried by an arm 16 so shaped that the ball is to the rear of, or in front of, the support 7. The rod 12 may be adjustable angularly in an horizontal plane so that allowance for drift may be made.
Patent GB-234915-A (GB)
Title: Improvements in shuttles for use in weaving looms
IPC: D03J5/00
Filed: 1924-03-10
Abstract: 234,915. Irmischer, J. R. P. March 10, 1924. Shuttles for wire-weaving looms. The heel 1<a>, Fig. 5, of the bobbin is arranged over the castor 13 in order to utilize the space in that end of the shuttle. To exclude dust, the upper part of the heel may be provided with a metal plate 24. The heel has a hooked part 4 embracing a pin 2. When the bobbin is raised, it rests on a flat end 1<d>, and upon lowering it, shoulders 19 on the bobbin engage cam parts 1<b> on the shuttle to guide the bobbin into position where it is secured by a spring-actuated pin 3 adapted to enter a conical recess in the bobbin. The pin 3 and its spring are held in the shuttle by a plate having a bevelled edge engaging a bent extension of the axle of the castor. The paying-out of the wire weft is controlled by forming the bobbin with an elliptical, semi-circular or blade-like cross-section. The weft passes through an eye g and is guided over a curved part 31 around a roller 9<a> to an eye in the side of the shuttle provided with a pair of rollers 11, the headed spindles 15 of which are shotted to receive a securing plate 17 arranged in a slot in the shuttle. In a modification, the tensioning device comprises a series of rollers 27, 28, 29, Fig. 13, arranged adjacent an eye 25<a> formed in a pin 26. The roller 28 is adjustably supported by springs 34. The eye may extend from the side of the shuttle as shown in Fig. 17, in which case the weft passes over a roller 36 arranged in an adjustable frame and passes through a pyramidal recess 46 to rollers 44, 45 mounted in a frame 43 extending from the side of the shuttle.
Patent GB-1246167-A (GB)
Title: Indirect heat exchange process and apparatus for alternately heating and cooling at least one adsorption zone
Inventor: HARDISON LESLIE CLAIRE
IPC: B01D53/04
Filed: 1969-02-05
Abstract: 1,246,167. Separating gas mixtures by adsorption. UNIVERSAL OIL PRODUCTS CO. 5 Feb., 1969 [8 Feb., 1968], No. 6140/69. Heading B1L. [Also in Division F4] An adsorption zone which requires alternate heating and cooling is surrounded by a jacket which is supplied alternately with steam and water, both at constant pressure, the steam supply being discontinued when the jacket is almost filled with steam so that at all times water only is discharged from the jacket. As illustrated, steam or water is passed by a change over valve 3 through a constant pressure valve 4 and an automatic or manual regulating valve 5 to a jacket 6 surrounding a zone 7 which is used for the adsorption and desorption of gaseous oxides of nitrogen contained in tail gas evolved in the production of nitric acid. A constant pressure is maintained in the jacket by a back pressure regulating valve 8 in a discharge line 9. So that the steam and water sources may be continuously utilized, two or more jackets may be operated on cycles which are suitably out of phase. Preferred operating conditions are disclosed.
Patent GB-434128-A (GB)
Title: Manufacture of aminopyrenesulphonic acids
Filed: 1934-02-26
Abstract: New aminopyrene - sulphonic acids are obtained by (1) treating 3-aminopyrene with a sulphonating agent at 20--50 DEG  C.; (2) converting the 3-aminopyrene into its acid sulphate, and heating the product, preferably in vacuo, to a high temperature; and (3) nitrating 8-pyrene sulphonic acid and reducing the product. According to examples: (I) 3-aminopyrene is sulphonated with sulphuric acid monohydrate to give a mixture of 3-amino-8- and 10-sulphonic acids; (II) 3-aminopyrene is converted to the sulphate, which on heating in vacuo, gives the 3-amino-4-sulphonic acid; (III) 8-pyrene-sulphonic acid, obtained by treating pyrene in carbon tetrachloride with chlorsulphonic acid, is nitrated, followed by reduction with a nickel catalyst and hydrogen under pressure.  The Specification as open to inspection under Sect. 91 also contained examples of the treatment of 3-aminopyrene with chlorsulphonic acid and the treatment of 3-nitropyrene with bisulphite solution to give a sulphonic acid similar to that of example II.  This subject-matter does not appear in the Specification as accepted.
Patent GB-867295-A (GB)
Title: Coal-winning apparatus
Inventor: KRAPELS JOHANNES GERARDUS
IPC: E21C29/00
Filed: 1960-02-22
Abstract: 867,295. Mineral-mining apparatus. STAMICARBON N. V. Feb. 22, 1960, No. 6219/60. Class 68(1). A mineral-mining apparatus in which one or more winning machines, e.g. ploughs, are hauled to and fro along and against one side of a scraper conveyer is so designed that when dust created by and directed into the lower channel of the troughing of the conveyer by the machines accumulates to cause impedance above a certain value to the passage of the lower run of the endless scraper chain through said channel the hauling of the machine(s) is automatically interrupted to allow the lower run of the chain to clear said channel. In order that this may occur the sprocket-carrying drum 10 at one end of the conveyer is carried by a shaft 11 rotatable in bearings 12 slidably mounted in longitudinally extending guides in the side of the troughing. The bearings are secured to the piston rods 14 of chain-tensioning jacks 13, 14. As the dust accumulates in the lower channel of the troughing the drum 10 is urged inwards from the adjacent end of the conveyer to cause an increase in the pressure in the hydraulic system of the jacks in proportion to the increase in tension in the lower run of the scraper chain due to the dust. On a predetermined pressure in the hydraulic system of the jacks being reached a pressure relay operates a switch 21 to stop the drive of the haulage of the winning machine(s).
Patent GB-809020-A (GB)
Title: Semi-trailer coupling
IPC: B62D53/12
Filed: 1957-02-25
Abstract: 809,020. Vehicle couplings. JOSTWERKE J. STEINGASS G.m.b.H. Feb. 25, 1957 [Aug. 4, 1956], No. 6268/57. Class 103(5) A semi-trailer coupling pin 3 is retained in the slot of the lower fifth wheel by a pivoted latch 4 having a wedge surface 17 engaged by the complementary surface 16 on the slidable lock 9. A lock-set position is provided by the surface 16a engaging the nose 6 of the latch. The lower fifth wheel may be resiliently mounted on the tractor or the upper fifth wheel (Fig. 5) may carry bearings 40 for the trunnions of a transverse shaft 35 rotatably mounted on the underside of the trailer, to allow relative rotation about a longitudinal axis between the tractor and trailer. The relative rotation may be prevented by sectors 50, 51 operated by the handle 47.
Patent GB-795949-A (GB)
Title: An electric arc welding gun
IPC: B23K9/29
Filed: 1957-02-25
Abstract: 795,949. Welding by fusion. UNION CARBIDE CORPORATION, [formerly UNION CARBIDE & CARBON CORPORATION]. Feb. 25, 1957 [March 1, 1956], No. 6302/57. Class 83 (4). In an arc welding gun an electric motor 50 located in the rear of the barrel 10 and driving electrode feed rolls 46 has a hollow armature 52 in line with an electrode guiding and electric contacting tube 16 and the axis of the barrel 10, the electrode 22 passing through the armature 52 to the feed rolls 46 and the tube 16. The gun is provided with a ceramic gas nozzle 30 to which a shielding gas such as argon is fed. Specification 706,767 is referred to.