baber/WOPTO huggingface dataset:
Patent GB-554674-A (GB)
Title: Improvements in and relating to sighting devices for aerial cameras
IPC: G03B41/08
Filed: 1942-03-13
Abstract: 554,674. Sighting-devices for photographic cameras. HOUGHTON-BUTCHER MANUFACTURING CO., Ltd., HUNTER, D. G., and HAINSWORTH, F. March 13, 1942, No. 3329. [Classes 97 (i) and 98 (i)] A sighting telescope for use with an aerial camera in which the film is continuously moved at a speed which can be adjusted to that of the image includes in the optical system a prism mounted for continuous rotation on an axis parallel to a refracting edge and perpendicular to the optical axis of the telescope, so that the image seen is formed by rays which have traversed the prism and is swept across the field of vision by the rotation of the prism. As shown, a square section prism e is mounted on stub spindles f extending transversely of the optical axis of a telescope comprising lenses a and b and an eye-piece c. It is rotated by gearing from the same variable speed motor which drives the film, the gearing ratio being such that when the speed of rotation is adjusted so that the image movement in the telescope due to the movement of the aircraft is neutralized the speed of the film is equal to that of the image in the focal plane. Alternatively the axis of the spindles f may be positioned so 'that the prism produces a movement of the image perpendicular to that due to the movement in relation to the ground, the adjustment being correct when the image moves in a direction which is at 45 degrees to its direction when the prism is stationary.
Patent GB-787189-A (GB)
Title: Improvements in or relating to sealing means for rotary machinery
Inventor: VICKERY JOHN PERCY
IPC: F01D11/00
Filed: 1955-02-04
Abstract: 787,189. Elastic fluid turbines; stuffing-box substitutes. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Jan. 26, 1956 [Feb. 4, 1955], No. 3398/55. Classes 110 (3) and 122 (5). The rotor or impeller shaft bearing 17 of a turbine or compressor, in which the working fluid may be very hot, very cold or corrosive, is protected from contact with the fluid by an arrangement of seals comprising a labyrinth packing 8 adjacent to the rear face of the rotor or impeller, a second labyrinth packing 13 carried by a cup 14 secured to the rotating member, and a third seal 22 in the form of a wind-back screw. The bearing 17 is supplied with lubricant which flows across a thrust face 19 to a passage 18 and returns to a sump via passages 20 and 21. Working fluid leakage through the first seal 8 is directed by a scoop 9 on the rotor to an annular collecting chamber 11 by a duct 10, which may be surrounded by air passages 12 or by a heat-insulating jacket. The working fluid collected in chamber 11 may be returned to the intake or used for other purposes, e.g. it may be used for cooling hollow turbine blades or other hot parts. Between the second and third seals an annular chamber 15 is provided for the collection of working fluid leakage through seal 13 and lubricant leakage through seal 22; a sealing ring 23 prevents leakage between collecting chambers 11 and 15. Chamber 15 provides a buffer region from which mixtures of working fluid and lubricant may be drained, thus avoiding contamination of the working fluid by the bearing lubricant and vice versa, the use of lubricant may be obviated by employing a ballbearing at 17.
Patent GB-944065-A (GB)
Title: Device for measuring vibrating force and/or unbalance in rotating bodies in particular on dynamic balancing machines
IPC: G01M1/02
Filed: 1961-01-30
Abstract: 944,065. Measuring rotary unbalance. W. & T. AVERY Ltd. Jan. 30,1961 [Feb. 13, 1960], No. 3414/61. Headings G1N and G1X. The support for a body whose rotational unbalance is to be measured comprises two spring blades 2 (Fig. 1) which are cut away between the ends so that the bearing support 1 is free to move in the measured direction and stiff in the perpendicular direction, the vibrations being fed through a rod 4, which is shaped to be stiff in the direction of the vibrations and flexible in the perpendicular direction, to be measured by a transducer 7 carrying strain gauge resistor 9. The transducer 7 measures the movement of the local end of the rod 4 relative to the bearing support 3, or can be made to measure the relative movement between the two ends of the rod 4.
Patent GB-663279-A (GB)
Title: Improvements relating to servo systems
IPC: G05D3/14
Filed: 1949-02-09
Abstract: 663,279. Electric follow-up systems. FERRANTI, Ltd., TAYLOR, M. K., and WILLIAMSON, D. T. N. March 24, 1950. [Feb. 9, 1949] No. 3489/49. Class 40 (i). A servo-system for obtaining positional correspondence between two shafts by using an error signal to drive a servo-motor attached to the output shaft includes anti-hunting means comprising means for adding a damping A.C. of lower frequency to the error voltage, the combined voltage being limited in amplitude before being applied to the control winding of the servo-motor, so that the damping A.C. has no effect until the error signal has fallen below predetermined values. As shown (Fig. 1), the error signal is fed via leads 11 to an amplifier 10, and is there mixed with a constant damping voltage of lower frequency from a generator 17, to give voltage 20 (Fig. 2), which is limited e.g. by biased diodes, to cut off at levels 23, 24, thereby restricting the voltage applied to the signal winding 12 of motor 13. When the error voltage falls, the combined voltage contains a low frequency component, as seen at 30 (Fig. 3), which produces eddy current damping in the rotor.
Patent GB-664183-A (GB)
Title: A machine for folding and sealing envelopes, tickets, cards and the like
IPC: B31B19/26
Filed: 1949-02-09
Abstract: 664,183. Folding and sealing envelopes &c. IRVINE, G. J. Feb. 9, 1950 [Feb. 9, 1949], No. 3507/49. Class 100 (i). [Also in Groups XV and XVII] In a machine for folding and sealing envelopes, tickets, cards &c. each workpiece as it is fed forward is folded along one centre line and is then sealed first along its two opposite open sides and then along its third open side. Each workpiece A is fed manually or automatically onto a platform 3 having a slot 12 over which its centre line is registered by a bar 13, and is pushed by a reciprocating blade 11 through the slot and between friction plates. A shaft 4 and bevel gears 5 transfer the drive from a motor 9 to the folding blade crank shaft 8; a cam 19 operates a spring- loaded follower 17 which through a link 14 moves the bar 13 so that it allows the centre of the workpiece A to overshoot the slot 12 and then returns it to correct registration for folding; the pins 15, 18 are adjustably fixed in slots in the link 14 to accommodate different sized workpieces.
Patent GB-117090-A (GB)
Title: Improvements in or relating to Apparatus for the Reception and Utilization of Electric Current Impulses, suitable for Wireless and other Telegraphy and Telephony.
IPC: H03H9/48
Filed: 1917-03-10
Abstract: 117,090. Lyons, W. J., and Selective Signal Co. March 10, 1917. Electric selectors; telephonic and other non-contact-making relays.-A harmonic fluid jet device consists of a jet of liquid, gas, flame, acid, or vapour escaping from a nozzle adapted to be vibrated electromagnetically by the received impulses to vary the length of its continuous portion which forms part of an electric circuit the resistance of which is made infinite when the jet is vibrated, or it may operate upon the diaphragm of a telephone transmitter connected with a rereceiver to form an audible recorder. The vibratory element which may be a tuning fork or a real is provided with a damping device and may be provided with small permanent magnets or with magnets the coils of which are energized with current of a pre-determined frequency. The apparatus is tuned by connecting its operating coils in circuit with a microphone before a tuning fork is sounded. In the arrangement shown in Fig. 1, a fluid jet b escaping from a nozzle a forms part of an electric circuit containing a relay f. The nozzle is vibrated through a cushion g by a tuning fork i operating upon an electromagnet j. To tune the apparatus its terminals j<1>, j<2> are connected to a circuit containing a microphone p before which a tuning fork or the like is sounded In the modification shown in Fig. 2, the operating coils 3 are placed between the prongs of the fork i and the vibrations of the fork are damped by a piece of rubber 1 the pressure upon which is adjusted by a screw 2. In a further modification the fork is replaced by an adjustable reed. Specification 121,144, [Class 40 (iii), Telegraphs, Electric] is referred to.
Patent GB-963192-A (GB)
Title: Improvements in or relating to milling cutters
IPC: B23C5/00
Filed: 1962-01-31
Abstract: 963,192. Milling-cutters. W. C. JONES. April 30, 1963 [Jan. 31, 1962], No. 3570/62. Heading B3K. A cutter comprises two milling-cutter bodies, one of which can be retracted into the other by screw or cam means to permit the other to take a rouching cut and can then be advanced to take a finishing cut.
Patent GB-1106361-A (GB)
Title: Improvements in or relating to the extrusion of metals
Inventor: ROGERS JOHN ALAN
IPC: B21C23/32
Filed: 1964-01-28
Abstract: In the extrusion of a metal billet a solid lubricant is employed which may be sodium chloride, potassium chloride or lithium fluoride, which may be mixed with lime or magnesia, or it may be of glass, graphite, mica or borax. Preferably, the lubricant is made into a preformed pad by the use of a binder such as water-glass, starch, linseed oil and water or phosphoric acid.
Patent GB-545367-A (GB)
Title: Improvements relating to the mounting of screw-threaded nuts and other members on a support
IPC: F16B37/06
Filed: 1941-03-17
Abstract: 545,367. Nuts. WELLS, W. J. C. March 17, 1941, No. 3594..[Class 89 (i)] Nuts are mounted in holes in a supporting plate by providing them with an 'extension 7 and flange 8 having a bevelled surface 9, the end of the extension being thinned so that it may readily be deformed. The extension is a fit for a flanged sleeve 1 that is a close fit in the holes in the plate and projects on the unflanged side. The flange 8 is preferably small enough to pass through the plate 5 so that the fixing may be effected without access to the rear of the plate being necessary. The sleeve 1 is threaded over the mandrel of a pulling device and the nut 6 is secured on the mandrel. The mandrel and nut are then pushed through a hole till the flange 2 is seated by an anvil or abutment on the pulling device. The mandrel is then retracted and the inclined surface 9 expands the projecting part of the sleeve 1 and at the same time the anvil expands the end of the nut extension into the countersink 3. The parts may be knurled or otherwise formed to assist in preventing rotation and the nuts may be self-locking, for example with fibre &c. inserts 13 as described in Specification 228,505, [Class 89 (i)].
Patent GB-909944-A (GB)
Title: Artificial sponge structures of regenerated cellulose
IPC: C08J9/00
Filed: 1961-01-31
Abstract: A regenerated cellulose sponge structure having staple fibres distributed within it, the ends of at least some of the fibres extending out of at least a part of the surface of the sponge forming a fibrous nap on that part of the surface, is prepared by dispersing staple fibres and crystals of Glauber's salt in a viscose solution, shaping the mixture, regenerating the cellulose, dissolving out the salt crystals, drying and removing at least a part of the surface skin.  The sponge may be in the form of a sponge cloth or a sponge coated yarn.  Specified fibres are flax, cotton, jute, hemp, nylon, polyacrylonitrile, polyethylene, polyethylene terephlate and polyvinylidene chloride.ALSO:A regenerated cellulose sponge structure has staple fibres distributed within it, the ends of at least some of the fibres extending out of at least a part of the surface of the sponge forming a fibrous nap on that part of the surface.  The sponge may be in the form of a sponge cloth or a sponge coated yarn.  The sponge is prepared by dispersing staple fibres and crystals of Glauber's salt in a viscose solution, shaping the mixture, regenerating the cellulose, dissolving out the salt crystals, drying and removing at least a part of the surface skin. Specified fibres are flax, cotton, jute, hemp, nylon, polyacrylonitrile, polyethylene, polyethylene terephthalate and polyvinylidene chloride.
Patent GB-858921-A (GB)
Title: Front wheel drive for tractors having rear driving wheels and a rear power take-off
IPC: B60K17/34
Filed: 1959-02-02
Abstract: 858,921. Driving motor vehicles. SELENE S.A.S. Feb. 2, 1959 [March 8, 1958], No. 3652/59. Addition to 835,828. Class 79(2). The chain drive of the parent Specification is replaced by toothed gears 3, 23, 5 one of which is axially displaceable on the shaft 6 to serve as a clutch.
Patent GB-1071865-A (GB)
Title: Axial-flow compressors
IPC: F04D29/54
Filed: 1966-01-27
Abstract: 1,071,865. Boundary layer control. GENERAL MOTORS CORPORATION. Jan. 27, 1966 [Feb. 24, 1965], No. 3663/66. Heading F2R. An axial flow compressor, wherein the last three stages of compressor blading are shown at 17, 18, 19, discharges into an annular diffuser bounded by walls 2 and 25, the wall 25 diverging sharply from an inner shroud 33. The blading stages are bolted to the flange 21 of shaft 13 and a ring 29, also bolted to flange 21, forms an annular passage 38 within which are housed a ring of stator blades 39 attached to shroud 33 and a ring of rotor blades 41 attached to ring 29. Shroud 33 is spaced at 37 and 43 from blade row 19 and curved transition 30 of wall 25, respectively whereby, in operation, auxiliary compressor 41 draws air through passage 38 to deliver it over transition 30 and cause the boundary layer to adhere to wall 25. The apparatus may be used to cause the boundary layer to adhere to wall 2.
Patent GB-795896-A (GB)
Title: A device for lifting coils of metal sheet
Inventor: METCALF JOHN HERBERT
IPC: B66C1/10
Filed: 1956-02-07
Abstract: 795,896. Lifting cradles. VICTROLEC, Ltd. Feb. 1, 1957 [Feb. 7, 1956], No. 3714/56. Class 78 (4). A cradle for lifting a coil of sheet metal has a platform 10 (Fig. 1) on which the coil rests and a post 19 which passes up through the coil and has a lifting eye 25. As illustrated the platform is formed of angle sections I mitred and welded at the corners 12 and joined by angle section cross-members 13 welded to the sides 11 and to shorter angle section members 14, 15. The upper flanges at the ends of the members 13, 14, 15 are cut away so that the vertical flanges can pass beneath the horizontal flanges of the member they are welded to. The post 19 comprises two angle-sections 20 bent into a U form and joined by angle section bridges 28. The eye 25 is bolted to a square plate taking under the upper flanges of the members 20, 28. Both flanges at the lower end of each leg of the post 19 are bent under the adjacent flange of a crossmember 13 or 14. The post 19 tapers upwardly so that several cradles can be nested together.
Patent GB-679664-A (GB)
Title: Improvements in or relating to the treatment of terpenes
IPC: C07C7/00
Filed: 1950-02-15
Abstract: Unsaturated terpenes from vegetable sources are freed from peroxides by treatment with a reducing agent (e.g. ferrous sulphate solution), followed by washing with alkali metal carbonate or bicarbonate solution and with water, both washings being effected in the absence of oxygen, e.g. in an inert atmosphere.  The product is then fractionated to remove oxygen-containing compounds and a fraction of boiling range 1 DEG  C. taken and subjected to the OXO synthesis, preferably after dilution with a hydrocarbon, ether or other inert diluent.  The inert atmosphere may be water-gas which is subsequently used for the OXO synthesis, residual oxygen being removed by passing it over a catalyst containing a reduced metal, e.g. cobalt.  The terpene aldehydes so produced are treated with weak acid at pH not less than 2 to remove traces of metals derived from the catalyst or the reactor; suitable acids are citric, acetic and phosphoric. Finally, a polymerization inhibitor is added and the inert diluent removed by evaporation.  An example shows the production of an aldehyde from a cut from the unsaturated terpenes of orange peel oil after treatment according to the invention.  The OXO catalyst was cobalt-thorium-magnesium-kieselguhr.  Specification 614,010 is referred to.
Patent GB-866364-A (GB)
Title: Lithium salts of secondary carboxylic acids and hydrocarbon fuels containing them
IPC: C10L1/18
Filed: 1958-02-06
Abstract: The invention comprises the following lithium salts of secondary carboxylic acids: lithium 2- ethylbutyrate, 2,3-dicyclohexyl-propionate, diphenylacetate, 2-methyl-2-neopentyl-cyclopropane carboxylate, 2-methyl butanoate, 2-cyclopentylpropionate, 2 2-methyl-3-cyclohexylpropionate, 2-ethyl-3,4-dimethylhhexanoate and 3,4,8,9-tetramethylundecane-5-carboxylate.  The lithium salts may be prepared by reacting the appropriate carboxylic acid with lithium or lithium hydride, hydroxide, alkoxide or carbonate. Alternatively, they may be prepared by saponification of an ester of a secondary carboxylic acid with a lithium base.  It is convenient to prepare the salts in aqueous systems, subsequently removing water by drum drying, spray drying or other conventional processes.  The lithium salts are useful as additives for hydrocarbon fuels.ALSO:A hydrocarbon fuel for internal combustion engines contains, as anti-knock agent, at least 0.05 gram per gallon of a lithium salt of a secondary carboxylic acid.  Preferred additives are the lithium salts of 2-ethylhexanoic acid, 2-ethylbutyric acid, 2,3-dicyclohexylpropionic acid, cyclohexane carboxylic acid, diphenyl acetic acid and 2-methyl-2-neopentylcyclopropane carboxylic acid.  Examples of other lithium salts are given.  The lithium salts are normally introduced with the fuel but may be added separately as dusts or powders, or with solvents such as water/alcohol mixtures or in supplementary anti-knock solutions such as tetraethyl lead/alcohol mixtures.  The lithium salts are effective in clear fuels and in those fuels containing an amount up to 6.0 ml. of tetraethyl lead per gallon. These fuels may also contain scavenging agents, dyes, antioxidants, anti-icing agents; inhibitors for rust, corrosion, haze formation, or gum formation; or anti-pre-ignition agents.  Blending agents such as gasoline-miscible alcohols, glycols, esters, ketones, amides and other polar organic liquids may also be added to enhance the solubility of the lithium salts.  The lithium salts may be dissolved directly in the gasoline or added as a concentrated solution in the blending agent.  Examples describe the use of the lithium compounds in commercial gasolines and iso-octane.  The compounds are also useful in lower quality fuels of the kerosene or JP-4 type.  (For preparation of the lithium salts see Group IV(b)).
Patent GB-847940-A (GB)
Title: Resonant vibration exciter
Inventor: JR ROBERT MOORHEAD CARRIER
IPC: B06B1/16
Filed: 1957-02-05
Abstract: 847,940. Vibratory mechanisms. CARRIER CONVEYOR CORPORATION. Feb. 5, 1957, No. 3891/57. Class 80 (4). The work - producing member or mass 1 of a vibratory mechanism is supported on relatively weak springs 10 and is coupled to an exciting mass or impulse member 2 by a spring 3, the mass of member 2 being within 12 to 50% of the mass of member 1. The member 1 supports a rotary crank 5 coupled by a link 7 to the member 2 and driven from a motor 11 at a speed approximating to the natural frequency of the system. The rotating crank may alternatively be on the member 2 and be coupled to the member 1 or it may be replaced by a rotating out-ofbalance mass on the member 2. The member 2 is guided along a desired path of vibration relative to member 1 by a link 22.
Patent GB-960144-A (GB)
Title: Method of making cushioned articles
IPC: B29C44/00
Filed: 1963-01-31
Abstract: 960,144. Making cushioned articles. UNITED STATES RUBBER CO. Jan. 31, 1963 [April 18, 1962], No. 3955/63. Addition to 914,870. Heading A4M. In an improvement in or modification of the method of the parent Specification of making a cushioned article the rigid support is replaced by an annulus 10 of tubular steel or other material having an outline of the same form as that of the raised member 13, and a plan cross-section exceeding that of the raised member so that the rim of the support overlaps the member 13, the underside of the rim being coated with the adhesive. The annulus rests on pins 15. U.S.A. Specifications 2,977,270 and 2,988,412 are referred to.
Patent GB-952250-A (GB)
Title: Improvements in or relating to coal sorting and picking plant
Inventor: LUKE RICHARD FORSYTH
IPC: B07B1/10
Filed: 1962-02-01
Abstract: 952,250. Sorting coal. R. F. LUKE (STRUCTURAL STEELWORK) Ltd. Jan. 31, 1963 [Feb. 1, 1962], No. 3978/62. Heading B2H. Coal to be picked and sorted is fed to an endless belt conveyer 7 by way of a shoot 6 comprising parallel bars between which the small coal is discharged, a deflector 9 at the rear of the conveyer 7 pushing the material fed from the shoot 6 to one side of the conveyer so that operatives standing along a platform 13 can rake the large coal on to the clear part of the conveyer which lies in the path of a discharge deflector 10 at the end of the conveyer. The large coal so picked off the conveyer is fed by a boom shoot 11 direct to trucks 12. Discharge from a run-of-mine conveyer 2 passes over a parallel-bar shoot 4 so that the large material is fed on top of the small material on the portion 1A of a conveyer 1 which feeds the material to the shoot 6. Small coal discharged by the shoot 6 is caught in a scoop 8 and fed back to the conveyer 1 after its passage over rollers 15. Conveyer 1 extends with a portion 1B beyond the length of the picking conveyer 7 to collect the unpicked material discharged by the picking conveyer If the feed from the run-of-mine conveyer 2 is too great for the capacity of the picking conveyer, it overflows to a shoot 19 and conveyer 20.
Patent GB-204640-A (GB)
Title: Improvements in or relating to box making machines
IPC: B31B50/20
Filed: 1923-02-10
Abstract: 204,640. Coomer, C. E., and Coomer, A. Feb. 10, 1923. Stamping-out apparatus for cutting the corners of box-blanks comprises a tool holder o reciprocated in a frame n by crank mechanism p, m, a corner cutting tool q in the holder, adapted to coact with a die r, and right-angled adjustable fences t. The holder has a lug o<1> in which can be secured a tool s for cutting a slit in the corner of the blank when it is desired to fold the material over instead of removing the material at the corner. When the tool q is in use the tool s is removed.
Patent GB-431361-A (GB)
Title: Improvements in and relating to spring operated crossings, trap points, switches andthe like for railways, tramways and the like
IPC: E01B7/14
Filed: 1934-02-08
Abstract: 431,361. Railway &c. crossings &c. WILLIAMS, Ltd., H., and WILLIAMS, D. D., Railway Appliances Works, Darlington. Feb. 8, 1934, No. 4182. [Class 104 (i)] [See also Group XXXII] In spring-operated crossings, trap points, switches, &c., for railways &c., the return movement under the action of the springs d is damped by means of a dashpot having two chambers l, q, in open communication at one end r and separated at the other end by a non-return valve p, The chamber l has a piston m connected to the switch &c. The two chambers are filled with oil &c., so that during opening of the points the piston m moves easily in the chamber l, the oil passing through the valve p. During the return movement, the piston is impeded owing to the oil being allowed to pass from the chamber q to l through a restricted passage in the piston or cylinder wall or valve.