baber/WOPTO huggingface dataset:
Patent GB-943762-A (GB)
Title: Lever system of variable transmission ratio
IPC: F16H21/44
Filed: 1962-01-18
Abstract: 943,762. Controlling aircraft. MESSERSCHMITT A.G. Jan. 18, 1962 [Jan. 18, 1961], No. 1823/62. Heading B7G. [Also in Division F2] In a two-lever, variable ratio linkwork connecting links 18, 14, Fig. 1, particularly in an aircraft control, the input lever 5 is pivoted on a fixed axis and has a sliding connection 7 with an output lever 8 pivoted at a fixed point Z about an axis which can be adjusted by a control link 12 to vary the plane in which the lever 8 swings and to vary the transmission ratio from zero to a mazimum. The lever 8 is connected by a ball joint 15 to the output link 14 and is pivoted at Z in a forked pin 10 which is rotated in a fixed bearing 9 by the control link 12. The lever 5 is pivoted to the input link 18 and is integral with a ring 3 pivoted by a stud 4, Fig. 2, in a fixed bearing 2 at right angles to the bearing 9. The ring 3 has an arcuate slot 6 extending over 90 degrees and forming a track for a spherical ring 7 slidably-mounted on the lever 8. The axes of bearings 2, 9 and of the levers 5, 8 intersect at Z. Acuation of the link 18 swings the lever 5 about the fixed axis D of bearing 2 and causes the track 6 to swing the lever 8 about the fork pivot to an extent depending on its adjusted orientation. In the full and chain lines respectively of lever 8 in Fig. 2 the transmission ratio is respectively a maximum and zero. It is stated that the control link 12 may be replaced by rack gearing, and that the planar arcuate slot 6 may be replaced by a slot following a curved path within the width of the ring 3.
Patent GB-284263-A (GB)
Title: Improvements in the manufacture of electric incandescent lamps or the like
IPC: H01K1/54
Filed: 1928-01-19
Abstract: 284,263. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen). Jan. 26, 1927, [Convention date]. Residual gases. - To enable the amount of " gettering " material placed in bulbs to be accurately determined, it is mixed with a binding material which rapidly stiffens, e.g. nitrocellulose solution, and made into the form of filaments, ribbons, or other easily handled bodies. The required length of this body may then be placed in or around the lamp bulb filament, or elsewhere as required. Any finely-pulverized " getter," e.g. common salt, cryolite, phosphorus, boron phosphate, or mixtures of them, may be used.
Patent GB-309977-A (GB)
Title: Improvements in or relating to photographic film packs
IPC: G03B17/34
Filed: 1928-01-19
Abstract: 309,977. Gaseltine, H. T., and Imperial Dry Plate Co., Ltd. Jan. 19, 1928. Film packs.-A light trap for the draw-tabs is constituted by at least two layers of paper or like material each having a slit, the layers being separated in the region of the slit. In the form shown, three layers 30, 28, 26, Fig. 2, constituted by folding a single strip of paper are used, three slits at 32 being provided for the passage of the tabs 34. The fold 30 is carried over the back of the exposed films, or, alternatively, may be passed out of the slit through which the tabs 34 pass. The fold 26 is passed round the bottom of the pack, behind the unexposed films, over the upper edge of the pressure plate 10 where it forms a loop 44, and is then bent forwardly to form a flap 46 lying immediately under the flange 18 of the rear plate 12, the free edge abutting against the front wall of the casing 22 and protecting the films 42 from light which might leak in from above. The upper end of the spring 24 which urges the front and rear plates 10 and 12 apart projects slightly above the level of the top of the front plate 10, and acts as a guide in assembling the pack, being positioned against the flange 18. Specification 292.694 is referred to.
Patent GB-1522111-A (GB)
Title: Machine for winding a carpet on a tube into a roll
IPC: B65H19/30
Filed: 1977-02-04
Abstract: 1522111 Winding webs WALL PAPER MFG Ltd 4 Feb 1977 [17 Jan 1976] 01861/76 Heading B8R A web winding apparatus having a pair of winding drums (2, 3, Fig. 3) is provided with a pair of cones 7 for engagement of the ends of a core 1 on which the web is to be wound each of the cores being supported by an arm 8 which is mounted slidably on a (square) rod 9, the rod being carried at its ends by arms 13 which are supported by pivots 14. The arms 13 are pivoted by fluid cylinders 15 to allow the cones 7 to rise with increasing web roll diameter. On removal of the cones 7 from the wound roll the downward movement of the arms 8 is controlled by the cylinders 15, acting as counter balance.
Patent GB-101049-A (GB)
Title: Improvements in Apparatus for Draining the Holds of Ships into the Bilges.
IPC: B63B13/00
Filed: 1915-08-13
Abstract: 101,049. Stone & Co., J., and Wimshurst, J. E. Aug. 13, 1915. Drainage.-A self-acting valve device for draining the holds of ships into the bilges comprises a casing m, Fig. 2, having a grating u at the top and containing a series of lift valves p, preferably ball valves, adapted to be raised or lifted bodily by the weight or head of water to permit the same to be discharged to the bilge. A single valve 1, Fig. 3, may, however, be used, and, as shown, hinged non-return valves 4 may be used in series with the lift valves to ensure the sealing of the hold against the return of foul gases from the bilge. The upper part of the casing may be integral with the grating, as shown in Fig. 3, or may be secured thereto by screwing, as shown in Fig. 2. A hollow portion t may be filled with heat non-conducting material and closed in by a screw plug w.
Patent GB-450763-A (GB)
Title: Improvements in means for the hydraulic transmission of power
IPC: F16H61/54
Filed: 1935-01-21
Abstract: 450,763. Hydraulic transmission of power. LAMMEREN, W. P. VAN, 45, Veurscheweg, Voorschoten, Holland. Jan. 21, 1935, No. 2021. [Class 69 (ii)] In hydraulic transmission means comprising vaned driving and driven wheels and stationary guide vanes, the latter are axially adjusted by a plunger and cylinder device actuated by the differential pressures of the circulating liquid. The transmission means may comprise a driving wheel 9, Fig. 1, a driven wheel 11, and a member with vanes 15, 17, 18, for forward drive, no drive, and reverse drive respectively. In another form, the driven wheel has radial apertures 23, Fig. 5, and vanes 21, 22, while the intermediate member has vanes 25, 26 and radial apertures 27. In other forms, guide vanes 47, 48, Fig. 11, are carried by a member 46, or by a member 57, Fig. 9. In all forms, the adjusting cylinder has ports a ... d connected to a control valve which is also connected through pipes H, L with regions of high and low pressure in the liquid circuit. Water, paraffin oil or glycerine can be employed in the circuit.
Patent GB-606838-A (GB)
Title: Improvements in or relating to folding doors
IPC: E06B3/94
Filed: 1946-01-21
Abstract: 606,838. Screens; furniture. WESTLAND ENGINEERS, Ltd., and MATTHEWS, E. Jan. 21, 1946, No. 2025. [Class 52(iv)] [Also in Group I] A collapsable screen of the lazy-tongs type comprises sets of mutually articulated units a, X-shaped in plan.view and made of cranked wire or rod, the ends of which are braced to vertical pivot rods b by means of triangular gusset plates c. The plates are bent to circular form at two adjacent edges to house the cranked members a and the pivot rods b. The frame may be covered by metal or other rigid sheets or by flexible material such as canvas. The material used may be translucent when the device is formed as a screen and used to cover, or serve as a background for, articles for display purposes.
Patent GB-881385-A (GB)
Title: Spray gun
IPC: B05B11/06
Filed: 1958-01-22
Abstract: 881,385. Spray-producers. ESMAY, P. O. Jan. 22, 1958 [Feb. 6, 1957], No. 2155/58. Class 69 (3). [Also in Group XVII] A spray gun for liquids or powders includes a cylindrical tube 10 in which a plunger tube 12, containing the material to be sprayed, is manually reciprocated, whereby at each downward or compression stroke of the tube 12 a limited quantity of material is sprayed from an outlet 18 and deflected by a deflector 85. An end cap 28 on the plunger tube has a hollow boss 37 providing a well 38 which opens into the material containing compartment of the plunger tube; the well is normally closed by a valve 44 urged downwardly by a spring 52 acting between a member 48 on the valve stem and the base of the plunger tube. A stack of thin discs 36 slidably engage the inner wall of the outer tube and, on the upstroke, air is drawn into the pumping space 16 via the annular space 22 between the tubes. On the downstroke the discs prevent the escape of air through that annular space. In operation the plunger tube is forced downwardly and the valve 44, Fig. 4, is opened to allow liquid or powder to pass into the well 38 and on the upstroke the valve closes and the material seeps into the space 16 via the gap between the valve stem and the bore 40 in the boss 37. Walls 65, 67 with diametrically opposed slots 73, 75 cause the liquid and air in the pumping space to take a tortuous path to the spray outlet. When spraying powder the wall 65 is omitted. Specification 881,386 is referred to.
Patent GB-740115-A (GB)
Title: Improvements relating to dynamo-electric machines and the method of making the same
Inventor: BLOSER DWIGHT WILSON
IPC: H02K15/16
Filed: 1954-01-25
Abstract: 740,115. Dynamo-electric machines. KEARFOTT CO., Inc. Jan. 25, 1954, No. 2208/54. Class 35. A dynamo-electric machine has a stator core which is located within the housing cylindrical portion from which it is separated by an impregnating varnish. The housing is formed of two sections 11, 12, the section 11 having a cylindrical portion 16 within which the stator laminated core 13 is located and from which it is separated by an annular space 29 filled with varnish 41. The stator stack 13 is mainly secured by hub portions 17, 20 which are integral parts of the housing sections 11, 12 respectively. The stators winding 14 are protected by a paper covering 27 which may be of flat stock or pre-formed to fit over the windings. The varnish is applied in a vacuum chamber so that all the interior voids within the interior of the casing become impregnated with the varnish and after wiping out the excess and allow setting, the final varnish " shell " will be as shown at 41.
Patent GB-781503-A (GB)
Title: Improvements in or relating to a method and apparatus for separating components froma mixture of materials
IPC: B07B9/02
Filed: 1955-01-26
Abstract: 781,503. Electrostatic separators. QUAKER OATS CO. Jan. 26, 1955 [Feb. 1, 1954]. No 2336/55. Class 117 Apparatus for electro-statically and pneumatically separating fibres or laminar materials from granular materials, e.g. asbestos fibres from asbestos rock, comprises a drum electrode 14 provided with radial vanes 17 and rotatable in an enclosure formed by a shield 18 and a sheet metal electrode 13. Crushed asbestos rock fed from a hopper 10 passes over the electrode 13 into the influence of the electrostatic field produced by the negatively charged electrode and vanes 14, 17, the asbestos fibres being drawn out of the mass towards the electrode 14 where they acquire a negative charge, are repelled therefrom, and then attracted to the earthed shield 18. On touching the shield they lose their charge and are again attracted and repelled by the electrode 14. This rapid oscillating movement causes loosening and clearing of the fibres which are carried round by the air stream set up by the vanes 17 and then withdrawn via a suction duct 20; the particles of sand and gangue remaining are drawn off at a shute 21. In' a modification, Fig. 2 (not shown) a separate shute is provided for collection of dense bundles of fibres which are too heavy to be drawn through the duct 20. The electrode fed from the hopper may be rotary or may include a conveyer belt, Figs. 3, 4 (not shown). Further, it may comprise .a conventional air -lift screen Fig. 5 (not shown). Fig. 7 shows how a number of separators are arranged and connected in an asbestos processing plant which also'includes a vacuum system 52, and devices 62, 64 for separating the fibres from the air stream. The apparatus may be used in the recovery of mica or graphite. Specification 519,770 [Group V]; is referred to.
Patent GB-742528-A (GB)
Title: Improvements relating to rotary ploughs and the like
IPC: A01B33/06
Filed: 1952-01-29
Abstract: 742,528. Rotary ploughs; manure distributers. CIVELLO, F. Jan. 29, 1952, No. 2368/52. Class 6 (1). A tractor-mounted rotary plough comprises a casing 6 having flanges for connection to the tractor chassis and having a downwardlyextending cylindrical part 10, a hollow shaft 12 being journalled in the casing to extend downwardly from the cylindrical part 10 and to be connected by gearing to a horizontal shaft 1 which is detachably connected to the tractor power take-off, and a tool-holding shaft 7 slidably keyed to the hollow shaft 12 so as to be driven thereby but bo vertically adjustable relatively thereto. The shaft 1 is connected to the tractor through a clutch 3 and flexible joint 4 and drives bevel-gearing in the hollow casing 6. The upper end of the tool-shaft 7 is connected to a part 8 having a rack and pinion adjustment 9. In a modification (Fig. 4, not shown) a casing carrying a plurality of subsidiary toolshafts is mounted on the lower end of the part 10, the subsidiary tool-shafts being driven by belts from the main tool-shaft 7 which passes through this casing. For distributing fertiliser a hopper 19 with basal spouts 20 is mounted on the shaft 12 so as to rotate therewith, and fixed vanes 21 are mounted on the part 10 to urge material through the spouts. The tools may be plough-like members 11 mounted on the shaft 7.
Patent GB-1117931-A (GB)
Title: Improvements in or relating to wave form generators
Inventor: GROVER DERRICK JOHN
IPC: H03K4/06
Filed: 1965-01-19
Abstract: 1,117,931. Transistor sawtooth generators. MARCONI INSTRUMENTS Ltd. 28 Oct., 1965 [19 Jan., 1965], No. 2376/65. Heading H3T. A generator for producing a triangular wave form of adjustable slopes but constant period and amplitude, comprises a condenser having charging and discharging means wherein the discharging current is greater than the charging current; means controlled by the condenser voltage for interrupting the discharging current when the voltage reaches a predetermined lower value and restoring it when the voltage reaches a predetermined upper value; and gang controlled adjustable resistors in the charging and discharging paths so arranged that for all settings of the gang control the period of the wave is constant. Condenser 1 is charged through resistor 3 and transistor 2 until its potential reaches the predetermined upper value, when transistor 10 is switched on, cutting off transistors 11, 12 and 13 and switching on transistor 4. The condenser 1 then discharges through transistor 4 and resistor 56 until the predetermined lower potential is reached, and the states of transistors 4 and 10- 13 are reversed. Resistors 3 and 56 are gangedit is shown in the specification that for any setting of the gang control the period of the triangular wave produced at 7 (i.e. time for condenser to charge through transistor 2 and then discharge through transistor 4) and its amplitude are constant but the two slopes of the wave are varied. Condenser 1 and resistors 14 and 15 may be adjustable to vary the period and amplitude.
Patent GB-310400-A (GB)
Title: Improvements relating to the distillation of liquids
IPC: B01D3/00
Filed: 1928-01-25
Abstract: 310,400. Freymann, A. Jan. 25, 1928. Column stills; distilling plant and processes; alcoholic liquids, distilling. - In distilling and rectifying alcohol and other substances the mixture of liquid and vapour issuing from the still &c. is caused to pass through a chamber 1, Fig. 1, on its way to a condenser 3, chambers 2 within the chamber 1 being connected to the condenser so that condensate flows through them and is heated by the mixture so as to expel constituents of low boiling point. Opening 25 allow such vaporized constituents to mingle with the mixture on its way to the condenser. A number of units such as that shown may be arranged in parallel, and the chambers 2 may be arranged to be tilted at any required angle. The vapours pass from the condenser into a cooler. In a form applied to an existing apparatus, condensate flowing from a pipe 4, Fig. 5, over grain floors is heated by the mixture of gas and vapour flowing within a jacket 12.
Patent GB-1152596-A (GB)
Title: Improvements in Reverse Osmosis and Membrane Manufacture.
IPC: C08J3/02
Filed: 1967-01-17
Abstract: 1,152,596. Cellulose acetate membranes. AEROJET-GENERAL CORP. 17 Jan., 1967 [17 Jan., 1966], No. 2444/67. Heading B5B. In a process for separating water from an aqueous solution, forming a cellulose acetate membrane by forming a casting solution comprising, cellulose acetate, an organic polar solvent, and a water soluble organic swelling agent capable of forming hydrogen bonds with the ketone and hydroxyl groups of the cellulose acetate, the swelling agent being present in the casting solution in from 1 to 10 parts by weight for each 10 parts of cellulose acetate, evaporating and casting said solution to form a membrane. A wide range of swelling agents may be used providing the swelling agent does not contain groups such as isocyanate acid halide or sulphonyl halide, which react chemically with the hydroxyl and ketone groups of the cellulose acetate. The swelling agents include organic mono- and poly-basic acids, amines, amides, carbamates, phosphates, phosphonic acids, mono-, di-, or tri-hydric alcohols, sulphonic acids and hydroxylamines. After casting a portion of the organic solvent is evaporated, the cast membrane is immersed in cold water, and is then set by heating in a warm water bath.
Patent GB-1496216-A (GB)
Title: Percussive tool
IPC: B25D17/24
Filed: 1975-01-20
Abstract: 1496216 Pneumatic percussive tool THOR POWER TOOL CO 20 Jan 1975 [21 Jan 1974] 2452/75 Heading B4C In a pneumatic percussive tool the throttle valve 100 has three positions, viz. open, closed, and partly open to permit a restricted flow of air in order to reduce the amplitude and frequency of the vibrations while withdrawing the tool from the work. In the first position a handle 26 depresses a valve stem 101 to permit unrestricted flow of air from the air pipe 80 past the portion 113 and into a chamber 50. Partially raising the handle permits the portion 113 to enter the bore 103: air then flows past a flat 124 on the portion 113. Raising the handle farther permits an 0-ring 114 to seal the valve. A spring 116 and Belleville washers 117 bias the valve closed (i.e. upwards), only the spring operating for the first part of the movement, both operating when the valve is fully open. In operation air enters chamber 50 (Fig. 3) after passing the throttle valve, and via passage 62 to a control valve 45 where it is directed through chamber 68 into chamber 80, and hence via a passage 86 to the space below the piston 42. As the piston rises, compressing the air above it, it will force the control valve 45 upwards, thus diverting the air supply into the cylinder above the piston. The space below the piston vents through outlet 94 so the piston moves down again to strike the anvil 28. The space above it is then vented through outlet 94. The compressed air remaining below the piston acts via passage 86 to force the control valve 45 downwards to start another cycle of operation.
Patent GB-178557-A (GB)
Title: Improvements in or relating to cutter-bars for coal-cutting machines and the processof manufacturing the same
IPC: E21C25/10
Filed: 1921-01-18
Abstract: 178,557. Moore, M. S., and Cowlishaw, Walker, & Co. (1920), Ltd. Jan. 18, 1921. Screwing.-In a cutter bar for a coal-cutting machine, the worm C is formed by winding a strip of metal on to a mandrel, removing it therefrom and fising it to the bar A as by welding, shrinking or by inserting picks D through the strip and into the bar. The bar may be cylindrical or tapered and a channel B may be formed therein to receive the worm ; the base of the channel may be parallel to the axis or to the sides of the bar and in the latter case, the strip may be of rhomboidal section. Some or all of the picks D may be placed adjacent the worm as shown to support the latter. The pitch of the work and the angle of its operative face may vary at different points along the bar and a number of worms may be provided.
Patent GB-1018260-A (GB)
Title: Improvements in or relating to doors
Inventor: LEAT JAMES HARRISON
IPC: E05G1/024
Filed: 1961-01-01
Abstract: 1,018,260. Safes and strongrooms. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 24, 1962 [Jan. 24, 1961], No. 2741/61. Heading E1A. A safe or strongroom door consists of a frame 2 provided with a thick plate 15 of drill and blowpipe resistant material such as malleable cast steel encased in an envelope 16 of mild steel. The frame carries door plates 5, 6, 7 and 8 all suitably welded together, the plates 8 supporting a back plate 9 proventing access to the locking mechanism housed in a space 10. In the closed position dogs 13, secured to the door engage slots 14 in the safe body 1. The plate 15 is secured by latch plates 17 which are bolted to the frame 2 so as to shear under an explosive charge.