baber/WOPTO huggingface dataset:
Patent GB-457978-A (GB)
Title: Improvements in or relating to methods of setting lenses used in sight-testing apparatus
IPC: A61B3/04
Filed: 1935-06-05
Abstract: 457,978. Sight - testing apparatus. PULZER, L. S., and STEARMAN, S. R., 45, Hatton Garden, London, and MAXWELL, E. H., 472, London Road, Croydon. June 5, 1935, No. 16396. [Class 97 (i)] A non - spherical lens used in sighttesting apparatus, particularly in apparatus of the kind described in Specifications 402,516 and 457,977, is set in its holder, e.g. as regards the orientation of the axis of cylindricity, by movably mounting the lens in an aperture in its holder so that it can rotate therein, adjusting the lens in the holder while in situ in the apparatus, and then fixing the lens against movement in its holder. The holder 10 has a circular aperture 14 with a flange 16 to receive a metal mount 18 carrying the lens 22. The mount has a flange 19 of which a part 20 is cut and bent into a notch 23 in the lens to fix the lens in its mount. The mount is made initially rotatable in the holder, either by making it a sliding fit, or by interposing a cement 24 which does not harden immediately. The holder is then placed in the apparatus and the lens is adjusted to the desired setting. When cement has been used the holder is left in the apparatus to allow the cement to harden and fix the lens in the holder. Otherwise the holder is removed after adjustment of the lens and the mount is fixed in the holder by a screw &c. The handle 12 of the holder may be inclined to the plane of the body 10 to render the holder irreversible in the apparatus.
Patent GB-1427907-A (GB)
Title: Moulding apparatus and to a method of moulding
IPC: B29C33/24
Filed: 1974-04-16
Abstract: 1427907 Injection moulding KOEHRING CO 16 April 1974 [25 June 1973] 16473/74 Heading B5A Injection moulding apparatus comprises at least one pair of moulds mounted on the same platens 12, 14 so that as a shot is cooling or curing in one mould, the other mould can be emptied and filled. Each mould comprises a section, e.g. 54A, mounted on the stationary platen 12, a section, e.g. 56A, mounted on the movable platen 14 and a floating section, e.g. 58A. The stationary and floating sections define a mould cavity, see Fig. 10, and are locked together during filling and moulding, e.g. 54B and 58B, Fig. 8. To eject a moulded article 112  by rods 96, the floating section 58A is released from the stationary section 54A and is locked to and retracted with the movable section 56A, see Fig. 8. The sections are held together in the appropriate sequence by hydraulic rams, e.g. 80A, fitted with V-shaped locking dogs (84, Fig. 9, not shown). The floating sections are fitted with guide pins (72, Fig. 12). A plate 30 reciprocated by an hydraulic ram 26 allows a clamping force from cylinders 34 and backing plate 20 to be applied to the platen 14 via rods 18 when the platen 14 has been moved sufficiently by a ram 24, see Fig. 10. A removable sprue plug (70, Fig. 1), or a valve may be employed initially to direct the flow of material into the required mould from a rotating and reciprocating screw 44. Plastics and rubber materials may be processed by the apparatus.
Patent GB-817882-A (GB)
Title: Ashpans for solid fuel heating apparatus
Inventor: KEITH THOMAS HENRY
IPC: F24B13/00
Filed: 1957-05-24
Abstract: 817,882. Ashpans. CHATWINS Ltd. April 29, 1958 [May 24, 1957], No. 16495/57. Class 126 An ashpan comprises a container a having guides f, h formed by the inwardly turned top and bottom edges of the side walls d. Guides g are secured on the inner faces of the side walls parallel with the guides f. A detachable cover i with handle m engages the upper guides f, g to close the container when the latter is to be removed to empty the ashes or engages the guides h to be stowed away beneath the container when the ashpan is in use.
Patent GB-777822-A (GB)
Title: Improvements in or relating to variable-speed transmission mechanisms
Inventor: SMIRL RICHARD LEWIS
IPC: F16H61/02
Filed: 1953-06-16
Abstract: 777,822. Cooling band brakes. BORGWARNER CORPORATION. June 16, 1953, No. 16546/53. Class 103 (1). [Also in Groups XXIV and XXIX] A reaction band brake 52 in an automatic planetary change-speed gear on a vehicle, which brake is used as a clutch to take up or disconnect the drive, is cooled and lubricated during the idle or take-up period only, by oil fed into circumferential grooves in the friction surface of the band from a trough 239 which is filled by the discharge from a starting centrifugal valve or orifice (see Group XXIV) in the control system which supplies fluid pressure to a piston 80 for applying the brake. Such discharge occurs only at idling and during take-up, being cut off during normal drive. Other reaction brake-bands in the gear may be similarly cooled.
Patent GB-254734-A (GB)
Title: Improvements in or relating to hand steering wheels for vehicles
IPC: B62D1/08
Filed: 1926-07-01
Abstract: 254,734. Houdaille, M., (Assignee of Soc. Anon. Etablissements M. Houdaille). July 2, 1925, [Convention date]. Hand-wheels.-The rim of a motor-vehicle steering - wheel is made, massive and is connected to the steering-pillar so as to move resiliently in a plane at right-angles to the pillar in order to absorb vibration. Move-' ment parallel to the pillar may additionally be allowed. The arms c, Fig. 1, may be of bladespring form, secured to or integral with the rim a, which may be in sections. The inner or outer ends of the arms c may, as shown in Fig. 3, be adapted to allow axial and tilting movements, or the blade-like arms may be twisted for the, same purpose. As shown at C, Fig. 7, locking-screws i, k, carried on one or more rigid arms h, may be provided to limit the circumferential yield of the wheel by stiffening one or more of the spokes c; or one or more rigid arms d' may loosely engage a recess e in the rim a, as shown at A, and adjusting-screws f, g may be provided, as shown at B. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the following additional subject-matter : A rigid wheel may be connected to the steering-pillar 6, Fig. 9 (cancelled), by a Hooke's joint, comprising forks 1, 5 on the wheel and pillar engaging trunnions 2, 4, respectively, on the cross 3. Adjustably spring-pressed plungers 8, acting on the forks 1, 5 tend to hold the wheel at right-angles to the pillar. In a modification, the returning-springs 10. Fig. 10 (cancelled), act in torsion on the trunnions 2, 4, and are adjustable by locked milled heads 11 to vary the initial inclination of the wheel. Axial yield is provided by carrying the trunnions in blocks 12, slidable in slots in the forks 1, 5 and controlled by adjustable springs 13. In a further modification, a universally-jointed wheel is controlled by inclined adjustable tension springs connecting the wheel to a collar on the pillar. In other forms, the ends of the spokes are forked, and carry axially or radially directed pins, on which slide lugs on the rim, these lugs being pressed by opposed springs. A rigid wheel, or a wheel having the radially-movable rim just described, may slide on a squared part of the pillar under the control of opposed compression springs acting on its hub. This subject-matter does not appear in the Specification as acceptetd.
Patent GB-733740-A (GB)
Title: Improvements in or relating to a process for the production of crystalline insulin
Inventor: PETERSEN KARL
IPC: C07K14/62
Filed: 1953-06-16
Abstract: Insulin is crystallized as sharp-edged rhombohedra with plane p crystal faces from an aqueous medium having a pH value approximately at the isoelectric point, the medium having had imported thereto a halogen content in ionic form in excess of 0.2 but not greater than 4 mol. per litre.  The halogen content is normally obtained by adding alkali metal, alkaline earth metal and ammonium halides, chlorides, bromides and iodides being mentioned.  Heavy metal halides are less suitable. Crystallization requires the presence of zinc, cobalt, nickel, cadmium, copper, manganese or iron, and zinc chloride may be added to the solution to an extent determined by the content of the metals already present.  The pH value of the solution is brought to 5.4-6.2 by the addition of acid or base as may be necessary. Acetate, borate, citrate, diethyl barbiturate or maleate buffer substances, or mixtures thereof, may be present in the solution. Amorphous insulin precipitating with the crystals may be removed by washing with acetone.
Patent GB-168455-A (GB)
Title: Improved means for laying dust in coal hoists and the like
IPC: B66B17/00
Filed: 1920-06-21
Abstract: 168,455. Coopey, B. W. June 21, 1920. Laying dust. - In a hydraulically-operated coal hoist or the like, exhaust water is led through a pipe b to a tank a and thence through a pipe f, suspended by a, ball-and-socket joint e, and cocks g - . g<3> to sprayproducers playing upon the shoot h.
Patent GB-256024-A (GB)
Title: Improvements in projection lanterns
IPC: G03B21/20
Filed: 1925-06-29
Abstract: 256,024. General Electric Co., Ltd., Eden, E. M., Jolley, L. B. W., and Wilson, G. H. June 29, 1925. Optical-projection apparatus.- To enable a defective lamp to be replaced readily and accurately by a new one, the lamp and a reflector are adjustably mounted on a carrier which occupies a predetermined position in the lantern and is readily removable therefrom. As shown, a carrier 1 supports a reflector 4 and a lamp 41 which may be adjusted to and from the reflector 4, and laterally with respect thereto, on a slide 18 which is vertically adjustable on the carrier. The lamp 41 has a screwed cap, and the terminal 31 engaging its end contact is vertically adjustable by means of screws 33 so that a desired position of the lamp filaments, obtained by rotating the lamp, and proper contact may be simultaneously obtained. The terminal 31 is connected by flexible conductor 34 to a contact blade 45 mounted on the carrier 1, and the lamp holder is electrically connected to a contact blade 13 through the slide 18. The carrier has flanges 3 on limbs 2 which engage under flanges 42 along the edges of a slot in the base of the lamp house, Fig. 2, and permit the carrier to be slidden to and from the condenser lens 36; the ends of the slots may form positioning means for the carrier. The contact blades 13, 45 engage spring contacts 39, 40 on terminal blocks 43, 44 secured to the side of the lamp house.
Patent GB-254747-A (GB)
Title: Method of stabilising hydrocyanic acid
IPC: C01C3/06
Filed: 1926-07-03
Abstract: 254,747. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. July 3, 1925, [Convention date]. Fumigants.-Hydrocyanic acid is stabilized by adding a small proportion of a substance capable of splitting off acid by hydrolysis, such as a halide of antimony, aluminium, lead. tin, or arsenic, for instance lead tetrachloride, stannic chloride, or arsenic trichloride; easily hydrolyzahle salts such as those of zinc and iron, easily saponifiable esters of organic or inorganic acids such as alkyl chlorides, sulphates, borates, or oxalates; halogen substituted esters of organic or inorganic acids such as bromacetic ester; organic compounds substituted by easily-splitting acid residues such as ethyl hydrogen sulphate; and acid chlorides such as acetyl chloride. Other halogen-containing- compounds such as carbon tetrachloride, chloroform, trichlorethylene, and chloropicrin may also be employed. In examples liquid hydrocyanic acid containing 2 to 6 per cent of water is stabilized by adding 2 per cent of ethyl sulphate, 1 per cent of aluminium chloride, 0.5 per cent of chloropierin, 3 per cent of the methyl ester of chlorocarbonic acid, or 2 per cent of the ethyl ester of bromacetic acid. If larger quantities of the stabilizers are added, a " mechanical " stabilization is effected in addition to the " chemical " stabilization described above, i.e. the excess of stabilizer acts as a diluent and so prevents explosion. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use, as stabilizing substance, of cyanogen chloride. This subjectmatter does not appear in the Specification as accepted.
Patent GB-515498-A (GB)
Title: Starting apparatus for prime movers and the like
IPC: F16D48/06
Filed: 1938-06-03
Abstract: 515,498. Starting prime-movers. WINTHER, M. P. June 3, 1938, No. 16722. Convention date, Nov. 22, 1937. [Class 38 (iv)] [Also in Group XXVII] In starting apparatus for prime-movers a manually closable switch normally biassed to the open position is adapted when closed to energize a circuit controlling the energization of an electromagnetic clutch coupling an electric starting motor to the prime-mover, the circuit of the motor being closed automatically after the clutch circuit is closed and the manual switch being held closed under the heavy starting current conditions of the motor but being automatically reopened to open the clutch when the starting current decreases on the starting of the prime mover. A prime mover 1 driving a dynamometer 3 for test purposes is started by an electric motor 9 to which it is connected by an electromagnetic clutch 7 and a chain and sprocket drive. Closure of a push button switch 131, 111 energizes 'a relay 107 which closes contacts 93 and energizes the clutch coils 25 from D.C. supply in series with a further relay 103. After the clutch is closed relay 103 operates and closes contacts 81 which causes energization of a contactor 73, 69 to connect the starting motor 9 to A.C. mains. A current coil 65 in series with the starting motor holds the switch 111 closed until. due to the prime mover starting, the starting current falls. Contacts 111 then open, relay 107 de-energizes and close contacts 121 which complete a discharging circuit for the electromagnet coil 25. The motor and the electromagnetic clutch are de-energized. In emergency, a push button switch 133, 117 in series with switch 111 may be opened to cause de-energization of the motor 9 and opening of the clutch 7. A reversing switch 71 is provided to permit starting jn either direction. The engine shaft 13, Fig. 3, is coupled to the rotatable casing of the dynamometer 3 and is keyed to a magnetic plate 21 forming one member of the clutch. The end of the shaft 13 is carried in the hub 6 of a rotatable casing 17 bolted to a sprocket 19 the hub 23 of which carries the coils of the electromagnetic clutch. The sprocket 19 is coupled to the motor shaft by a chain drive and the hub 23 is journalled on a stationary hub 29 bolted to a sleeve 33 supported on pillars 39. The hub 23 is movable axially against the action of springs 43 mounted on pins 47 slidable in the hub 23 and carried at their other ends by a ring 49 bearing against a flange 51 on the stationary hub 29. Connections from the electromagnets are taken to slip rings 55 on the hub 6.
Patent GB-624280-A (GB)
Title: Improvements in and relating to roller and like shutters
IPC: E06B9/17
Filed: 1947-06-26
Abstract: 624,280. Sliding doors; shutters. ADIE, G. M. June 26, 1947, No. 16830. [Class 20 ( iii ) ] A shutter comprises a plurality of flexible sheets 3 which are raised and lowered for opening and closing and which overlap at the vertical edges so that they form a continuous shutter. The sheets may be of asbestos webbing reinforced with metal &c. and formed of a number of strips joined by metal stitches 4. On each side at the lower edge each sheet is fastened to an angle section base plate 9 which may be continuous or in sections to permit of angular movement. Spring pressed levelling shoes 11 which make effective contact with the ground are adjustably attached beneath the plates 9 by bolts 12 which are hidden by cover plates 15. The juxtaposed surfaces of adjacent sheets are protected by contact strips 16 of graphite impregnated wear resisting material, which may also take some of the weight of the shutter. In the construction shown the sheets 3 and strips 16 pass between guide rollers 7 into the casing 2 and over guide rollers 8 suitably recessed to accommodate strips 16. Each sheet 3 then passes to a separate take up roller 6 and each strip 16 to a roller 17. Rollers 6, 17 may be power operated, or roller 17 may be spring controlled &c. The sheets may be operated singly or together, or in two series, i.e. front sheets on upper roller, and rear sheets on lower rollers.
Patent GB-145511-A (GB)
Title: Improvements in the manufacture and production of solutions of cellulose acetates
IPC: C08J3/09
Filed: 1920-06-22
Abstract: Cellulose acetate soluble in acetone is dissolved in a fully hydrogenized mono-cyclic ketone such as cyclo-hexanone or methyl-cyclo-hexanone, to form solutions suitable for lacquering and for the production of artificial silk and of films.  A solvent or diluent, as, for example, alcohol, acetone, ethyl acetate, or benzene, may be added to the ketone.
Patent GB-818487-A (GB)
Title: Helicopter
IPC: B64C27/12
Filed: 1957-05-28
Abstract: 818,487. Helicopters. UNITED AIRCRAFT CORPORATION. May 28, 1957 [June, 1, 1956], No. 16886/57. Class 4. [Also in Group XXVI] A helicopter rotor is driven through a master gear journalled for rotation about the rotor axis and meshing with a plurality of pinions each driven by a turbine supplied with fluid under pressure. Fig. 3 shows a gas turbine 78 driving a compressor 88 with an air intake 90, delivering compressed air to a manifold 74 through a flexible joint 91 and a heat exchanger 94 in the exhaust duct 92 of turbine 78. Manifold 74 is fed by two such gas turbine and compressor units, and feeds four turbines 72 (two shown), each having optional fuel injection at 85 and ignition at 87. A valve 105 may be opened to by-pass the turbines 72. Each turbine shaft 71 has a pinion 70 driving a gear 68 integral with a gear 66 and rotatably mounted on a shaft 56 fixed to a plate 54 rigid with the rotor pylon 20. Each gear 66 meshes with a central gear 64 journalled on the pylon 20 and integral with a sun gear 52. Four planet gears 48 (two shown) journalled in the rotor hub 39 mesh with the sun gear 52 and a ring gear 50 secured to the shafts 56. The five blades 28 (two shown) are connected to the hub through pitch change bearings 38, flapping and drag hinges 34, 36, and folding hinges 32, conventional cyclic and collective pitch controls being used. The exhaust of each turbine 72 may be led to atmosphere through a duct 73 and valve 61, or to atmosphere through valve 179, duct 77, and a heat exchanger 81 in the turbine inlet duct, or may be led through a duct 75 a valve 63, and through the interior of the pylon 20 to a distributer 67 feeding nozzles 95 through flexible couplings 108. Each nozzle 95 discharges into a throat 89 in a blade so that the flow entrains ambient air. The mixture is ducted along the hollow blade, and may be used for de-icing, or burnt with more fuel from nozzles in the blades for extra power. The turbines 78 are mounted on stub wings on the fuselage. An anti-torque tail rotor is driven by a take-off shaft 104 and bevel gear 102 meshing with gear 64, or by an auxiliary turbine fed with compressed air, or by an independent power unit.
Patent GB-785991-A (GB)
Title: Process for removing metals from hydroformylation products
Inventor: GWYNN BERNARD HENRY
IPC: C07C45/78
Filed: 1955-06-13
Abstract: Metal carbonyls, namely cobalt carbonyl with others such as iron, chromium, nickel and molybdenum carbonyls, are removed from hydroformylation stage products by introducing sufficient steam into the products to raise their temperature to the decomposition temperature of cobalt carbonyl, separating the products from the deposited cobalt, introducing sufficient steam into the so treated products to raise their temperature high enough to decompose all the remaining carbonyls, the product being separated from the deposited metals.  The steam may be wet, dry or superheated and the decomposition temperatures are stated to be 75-100 DEG  C. for cobalt carbonyl and 171-216 DEG  C. for the other carbonyls.  In the process described the hydroformylation products at 31.6 Kg/cm.2 and 38 DEG C. and fed into a tower packed with pumice and saturated steam at 31.6 Kg/cm.2 and 238 DEG  C. is fed into the tower to heat the products to about 100 DEG  C. to decompose the cobalt carbonyl. Cobalt is deposited on the pumice and the cobalt-free products are passed at 30.9 Kg/cm.2 and 100 DEG  C. to a further pumice packed tower to which saturated steam is admitted to heat the products to about 193 DEG  C. to decompose the remaining carbonyls.  The products are then treated to remove soluble compounds and water and are passed to a hydrogenation stage.ALSO:Metal carbonyls, namely cobalt carbonyl with others such as iron, chromium, nickel and molybdenum carbonyls, are removed from hydroformylation stage products by introducing sufficient steam into the products to raise their temperature to the decomposition temperature of cobalt carbonyl, separating the products from the deposited cobalt and then introducing sufficient steam into the so treated products to raise their temperature high enough to decompose all the remaining carbonyls, the product being separated from the deposited metals.  The steam may be wet, dry or superheated and the decomposition temperatures are stated to be 74-100 DEG C. for cobalt carbonyl and 171-216 DEG C. for the other carbonyls.  In the process described in the Specification, the hydroformylation products at 31.6 kg/cm2 and 38 DEG C. are fed into a tower packed with pumice and sufficient saturated steam at 31.6 kg/cm2 and 2.38 DEG C. is fed into the tower to heat the reaction products to about 100 DEG C. to decompose the cobalt carbonyl.  The cobalt is deposited on the pumice and the cobalt-free products are passed at 30.9 kg/cm2 and 100 DEG C. to a further pumice-packed tower to which saturated steam is admitted to heat the products to about 193 DEG C. to decompose the remaining carbonyls.  The products are then treated to remove soluble compounds and water and are passed to a hydrogenation stage.  The deposited metals can be removed from the tower by dissolving in weak acids or by treatment with carbon monoxide at elevated temperature.