baber/WOPTO huggingface dataset:
Patent GB-877849-A (GB)
Title: Variable-speed transmission
IPC: F16H61/62
Filed: 1958-02-03
Abstract: 877,849. Hydromechanical variable speed gear. BORG-WARNER CORPORATION. Feb. 3, 1958 [Feb. 5, 1957], No. 3518/58. Class 80 (2). To increase the efficiency over a wider range of speed ratios of a hydrodynamic torque converter having an impeller 14 and turbine 15 secured respectively to input and output shafts 10, 11, its reactor 16 is connected to the input impeller 14 by a single- or two-train planet gear which is controllable by one or more brakes B1, B2, B3 to vary the proportion of torque transmitted in either direction between the impeller and the reactor, thereby varying flow conditions in the converter to suit the particular range of operation. The brakes may, as shown, be controlled automatically by the turbine-impeller speed-ratio. Fig. 1 uses two sun-ring trains the first sun 21 and carrier 22 of which are connected respectively to the impeller 14 and reactor 16, the second sun 25 to the first ring 24, the second ring 28 to the output shaft 11, and the second carrier 26 is prevented from reverse rotation by a one-way brake B3. A first range of operation is provided by the one-way brake B3 alone, which, at high speed ratios, causes a reverse torque to be applied mechanically to the reactor 16; a second range by application of the brake B 1 to hold the first carrier and reactor 16; a third range by applying the brake B2 to the first ring 24, which causes a forward torque to be applied mechanically to the reactor 16; and a finally converter-coupling phase with both brakes B1, B2 again released. Figs. 4 to 7 (not shown) use a single sun-ring train with different combinations of elements connected to the impeller, reactor and turbine, the first two Figures using a one-way brake and a single controllable brake, the last two using only two controllable brakes. An automatic converter-ratio responsive control for the fluid-pressure applied brakes B1, B2, Fig. 1, comprises a shift-valve 38 loaded leftwards by a spring and by fluid pressure supplied by an annulus 47 rotating with the impeller 14 and hence at a value proportional to impeller speed; and rightwards by a similar turbine-speed responsive pressure 48. From an initial stall and up to a turbineimpeller speed ratio of 0.51, the shift-valve 38 remains left, releasing both brakes B1, B2. Over a range of ratios 0.51 to 0.76 the valve 38 shifts right, engaging the brake B1 by fluid pressure supplied from a source 41 through a groove 51 and passage 44. Above a ratio of 0.76 the brake B1 is released and B2 engaged through a groove 52 and passage 45. At a ratio of 0.94 the shift valve 38 again releases both brakes B1, B2 for the converter-coupling phase. Torque and efficiency curves are provided.
Patent GB-767460-A (GB)
Title: Improvements in tyre moulds
IPC: B29C33/10
Filed: 1955-02-07
Abstract: 767,460. Tyre moulds. GOODYEAR TIRE & RUBBER CO. Feb. 7, 1955 [May 26, 1954], No. 3533/55. Class 87(2). Relates to moulding and vulcanizing tyres, particularly in the smaller sizes, and is a method of venting a tyre mould cavity wherein air and gases trapped in the closed mould 1 are collected and retained in a recess 2 (or recesses) in the inner face of the cavity and sealed therein under pressure, using the plastic material 5 as the sealing and pressurising medium. The recess is in the form of a groove which results in a ridge being formed along an edge of the tyre tread, this position rendering unnoticeable variations in the height of the ridges in different tyres as the material penetrates more or less into the groove. The entrance to the groove is sufficiently narrow to prevent it being initially filled with the plastic material, which forms a bridge owing to its viscosity, and seals air and gases in the groove. There may be two adjacent grooves, producing two ridges approximately at right angles. Since the ridges remain part of the product the need for trimming flash projections is eliminated.
Patent GB-142789-A (GB)
Title: Improvements in hypodermic-syringe needle and base
IPC: A61M5/34
Filed: 1920-02-05
Abstract: 142,789. Platt, F. L., Hein, G. N., and Impey, R. R. May 6, 1919, [Convention date]. Syringes, hypodermic. Relates to a detailed construction facilitating removal of the tip for sterilizing, to ensure a satisfactory joint between the needle and the mounting, and to insure the direction of the hypodermic charge into the bore of the needle. To the syringe barrel 1 is screwed a coupling 2 carrying by another screw connexion a needle-tip 3 and needle 4, of which the first screw union is provided with an annular tin or other metal packing-ring 8. Recesses are formed in the coupling and the needle-tip to admit of a cylindrical base 15 within which the needle 4 is mounted, and which is kept in fluid-tight connexion with the coupling when the needle-tip is screwed home so as to force the end of the base against a metallic packing-ring 13 in a stepped seat of the coupling. The needle-tips 3 may be of various lengths so as to support the needle adjacent to its extremity.
Patent GB-413982-A (GB)
Title: Method of and apparatus for printing in a plurality of colours
IPC: B41M1/20
Filed: 1934-02-03
Abstract: 413,982. Multi - colour printing, TILLETT, G. H., 36, Charterhouse Square, London, and TILLETTS, Ltd., 4, Vernon Street, Derby. Feb. 3, 1934, No. 3614. [Class 100 (ii).] A method of multi-colour printing consists in first printing various colour areas juxtaposed according to the required design and then superimposing on the first impression an impression in opaque ink consisting of lines bounding the various colour areas to conceal the gaps between them and any irregularities in the edges thereof. The first impression is made from a printing member consisting of a frame 2 provided with strips 3 forming the design, the spaces between the strips being filled with pads provided with colour from beneath by wicks or, as shown, from ink containers 4 through pipes 5. A roller or plate 6 is applied to the printing member and an impression therefrom is transferred to a sheet 7 of paper, silk, leather, wood, &c. A silk screen stencil 8 for printing the bounding lines and carried by pivoted arms 10, is then applied to the sheet and opaque ink is applied therethrough by a roller or squeegee. The roller 6 may be engraved to produce shaded or half-tone effects.
Patent GB-510721-A (GB)
Title: Improved device for actuating the controls of aircraft
IPC: B64D31/00
Filed: 1938-02-05
Abstract: 510,721. Controlling aircraft. TAMPIER, R. Feb.-5, 1938, Nos. 3657 and 5564. [Class 4] [Also in Group XXIV] .. A device for actuating controls in aircraft comprises operating-members 1, 2 rotatably mounted on a common shaft arranged at right angles to the longitudinal axis of the aircraft, each member operating a separate control and having radially extending handles or levers 5, 5` by means of which it can be operated stepwise, fixed members 20 disposed adjacent to said operating-members and serving as supports for one or more auxiliary devices co-operating with an adjacent operating-member, and an operating connection between each member and the element controlled thereby for _ transmitting the rotary movement of the member as a linear movement. In the form shown groups of such operating-members and fixed members are mounted on parallel shafts, 3, 3<1>. For transmitting the control movement a pinion 7 carried by the hub of each operating-member is in permanent mesh with a cylindrical rack 8. The racks 8 are mounted in eccentric members 9 which may be rotated to take up backlash between the racks and pinions. A device for indicating the control position comprises a scale 19 and a pointer 18. To provide means'for holding any operating-member in the position into which it is moved, each fixed member 20 is provided with a friction member 25, Fig. 4, the outwardly projecting portion of which is adapted to bear against the inner face of a flange 26 on the operating-member, and which ,is adjustable by means of a knob 23.. To arrest the movement of the operating-members stops 28, Fig. 5, are provided on the fixed members, with which.pins 29 on. the rotatable members coact. In a modification the operating - handle may be pressed inwardly to allow the pin 29 to press the stop 28. To actuate two adjacent control members differentially a pinion 36 may be brought into engagement with toothed quadrants on the operating-members and rotated by means of the handle 39. To economise space the operating,-handles 5, 5' may be automatically drawn inwards and rotated on their own axes as they'pass any other member in their path, by means of cam surfaces on the fixed members 20 co-operating with rollers on the handles. According to the first Provisional Specification the handles 5. 5' may be , of different lengths and/or of different colours. According to the second Provisional Specification, a warning- device may be incorporated to indicate, for instance, that a retractable undercarriage is not in the desired position.
Patent GB-1470912-A (GB)
Title: Change-speed gearing of the multiple-box type particularly  for agricultural vehicles and/or self-propelled building  machines
IPC: F16H3/00
Filed: 1975-01-28
Abstract: 1470912 Change-speed gear KLOCKNERHUMBOLDT-DEUTZ AG 28 Jan 1975 [1 Feb 1974] 3667/75 Heading F2D A change-speed gear having two gear trains in series comprises a main gearbox 6 having aligned input and output shafts 5, 13 respectively which can be coupled together by a clutch 24 for direct drive, having a layshaft 14 driven at the same, or a higher, speed than input shaft 5 and carrying gears meshing with gears on the output shaft for other ratios, an auxiliary gearbox 7 having a gear 31 meshing with a gear 21 on the output shaft 13 of gearbox 6 for forward drive, the gear 21 also meshing with a gear 32 on a shaft 34 for reverse drive. The main gearbox 6 provides five forward ratios, selected by clutches 22, 24 and 27, and the output shaft 13 drives the auxiliary gearbox 7 through one of three gears 21,28 and 29 engaging gears 31, 38 and 39 in the auxiliary gearbox. The auxiliary gearbox 7 provides for forward ratios and reverse depending on the operation of clutches 37, 41 and 46. A layshaft 43 provides a very low gear for creep when clutch 46 operates to clutch a gear 45 to the output shaft 30, when the drive is from shaft 13 via gears 29, 39, 40, 42, 44 and 45 to output shaft 30. A power take-off shaft 48 is provided, driven through a portion 4 of a double clutch 2 which also clutches the input shaft 5 to an engine. The final drive to vehicle wheels 12 is by way of a differential 9 and reduction gearing 10 to two half-shafts 11. A further output from output shaft 30 can be taken from a gear 47.
Patent GB-100809-A (GB)
Title: Improvements in or relating to Brushes.
IPC: A46B3/16
Filed: 1916-03-16
Abstract: 100,809. Harris, W. G., and Rutter, S. E. March 16, 1916. Bristles, fixing.-Relates to brushes of the kind in which the bristles are doubled over the end of a handle and are secured by a wire, the doubled part of the bristle-mop being provided with a cap or a wire sheath. In the brushes shown in Figs. 1 and 4, the end c of the handle a is flattened and formed with shoulders d supporting a washer e, the bristles b being doubled over the washer and secured by a wire f, which is threaded through holes in the washer and formed into loops g for the bristles and is secured by being twisted round the handle. The end of the handle may be forked to receive the wire. A cap i, Fig. 1, is forced down over the bristles and secured to the handle; or, as shown in Fig. 4, the sheath may be formed from a wire m which is closely wound over the bristles and is supported by a wire l<1>, l<2> passing through a hole in the handle. A cap for covering the wire m may be provided. In the brush shown in Figs. 6 and 7, the handle a is formed with two holes n, o to receive wires p, q for securing the bristles and forming the sheath respectively. The wire p is formed with two loops p<1> for the bristles and is coiled round the handle at p<2> and the ends p<3>, p<4> bent downwards. One end q<1> of the wire q is bent upwards over the bristles, and the other end q<3> is closely coiled round the bristles and is hooked at q<5> to the end q<1>. The sheath and the hook may be soldered, and a cap may be placed over the sheath. The ends p<3>, p' may be cut off or may be doubled back and connected to the wire q. Two or more brushes constructed as described above may be secured to a common handle.
Patent GB-564139-A (GB)
Title: Improvements in or relating to suction cleaning systems
IPC: A47L9/10
Filed: 1943-03-11
Abstract: 564,139. Air filters. HOOVER, Ltd. (Hoover Co.). March 11, 1943, No. 3957. [Class 8 (ii)] [Also in Group II] A suction cleaner comprises a fan 5 drawing air from an initial dirt separator or whirl chamber 6 and delivering it to a filter chamber 12, and a brush 20 operable from outside the tilter chamber to remove the collected dust which is returned through a conduit 18 to which the suction hose 10 may he connected. The brush and the conduit 18 may be combined together.
Patent GB-1136021-A (GB)
Title: Improvements in or relating to catalysts
IPC: B01J23/86
Filed: 1966-01-31
Abstract: 1,136,021. Oxidation catalysts. PETER SPENCE & SONS Ltd. 31 Jan., 1966 [29 Jan., 1965], No. 4161/66. Heading B1E. Oxidation catalysts conprise Al 2 O 3 , a heavy metal oxide and oxides of Ni and Ba. Heavy metals specified are Cu, Co and Cr. The preferred support is γ-Al 2 O 3.
Patent GB-138441-A (GB)
Title: Improved method of and means for connecting span wires and fittings for the suspension of conductor or trolley wires in overhead wire systems of electric traction
IPC: B60M1/20
Filed: 1919-02-20
Abstract: 138,441. Brecknell, Munro, & Rogers, and Willis, A. M. Feb. 20, 1919. Suspending and supporting; insulators.-Span wires 3 are connected to the fittings used in the suspension of the overhead wires in electric traction systems by being doubled around wedges 4 in sockets 2 provided on forked shackles 1. Each shackle is connected to an insulating-block 5 which carries another shackle 7 at right-angles. These shackles are used with both straight-line hangers and pull-offs.
Patent GB-548283-A (GB)
Title: A stand or support for a telephone and telephone directory
IPC: B42D5/00
Filed: 1941-04-01
Abstract: 548,283. Supporting telephone instruments. BUTLER, F. J. April 1, 1941, No. 4346. [Class 40 (iv)] [Also in Group XV] The base 10 of a loose-leaf book such as a telephone directory is extended to support and locate a telephone instrument. The locating means consist of recesses 17 for the instrument feet, whilst spring clips or screw clamps may be used. The loose-leaf book consists of leaves threaded upon curved arms 14 having knobs 15 screwed on to the ends, the arms being carried by a bracket 12 with upturned ends 13 engaging the leaves. The base 10 may be hollow and other methods of filing the leaves may be employed. The Provisional Specification describes both a resilient Y-shaped adjustable clip and a coiled-spring clip for securing the instrument.
Patent GB-1530301-A (GB)
Title: Endoprosthetic bone joint devices
IPC: A61F2/30
Filed: 1975-01-31
Abstract: 1530301 Eudoprosthetic interphalangeal bone joint NATIONAL RESEARCH DEVELOPMENT CORP 30 Jan 1976 [31 Jan 1975] 4423/75 Heading A5R An interphalangeal endoprosthetic bone joint has a cast metal male component with a tapered stem 11 having at its wider end on respective sides thereof a pair of co-axial discs 13 with convex bearing surfaces 14 and a moulded plastics female component with a tapered stem 21 having at one end on respective sides a part-toroidal concave surface 24 of greater than 180‹ angular extent to receive the discs 13 as a snap fit. Both the convex surfaces of the discs and the surfaces 24 are concave in transverse axial cross-section, and the medial radial planes are offset relative to the stem axes.
Patent GB-211696-A (GB)
Title: Improvements in grain drying apparatus
IPC: F26B17/14
Filed: 1923-02-15
Abstract: 211,696. Simon, Ltd., H., and Raeburn, C. Feb. 15, 1923. Gravity, materials descending by; air, controlling circulation o f. - Apparatus for drying wheat and maize comprises a steam-heated casing b containing tubes a through which the grain passes in countercurrent to air which is admitted at a slight pressure through the lower perforated portions c of the tubes, the tubes being provided with divisions f at their upper ends to facilitate the separation of moisture-laden air from the grain. The grain is supplied to each pair of tubes through a common duct h, and the air is exhausted through ducts g. The grain is cooled by the air supplied through the duct d and is discharged periodically by a mechanically reciprocated grid i which serves to open and close the bottoms of the tubes. In a modification, the tubes are formed with a perforated portion through which the air can escape, the grain being heated before passing into the tubes.
Patent GB-469048-A (GB)
Title: Improvements in the manufacture and production of an oil of high boiling point suitable as a heating oil or motor fuel
IPC: C10L1/04
Filed: 1936-02-14
Abstract: Oils of high boiling-point suitable for use as fuel or diesel oils are obtained from the products formed in the extraction or mild hydrogenation of carbonaceous materials by subjecting the liquid extraction or conversion products, after separation of solid constituents to extraction with liquefied hydrocarbons, containing 1--3 carbon atoms in the molecule, at elevated temperatures below the critical temperature of the extraction agent and under pressure, and mixing the undissolved fraction with a middle oil of cyclic nature to constitute the desired fuel or diesel oil, the dissolved fraction, after removal of solvent, being used as a pasting agent for fresh carbonaceous material. The initial material is preferably pasted with a material transferring hydrogen, e.g. tetrahydronaphthalene decahydronaphthalene or their homologues or octahydroindene or hydroanthracene or a tar middle oil prepared under strong hydrogenating conditions.  Finely ground coal pasted with middle oil obtained in a previous operation and with the addition of 1,15 per cent ammonium chloride and 0,06 per cent tin oxalate is mixed with two parts of the heavy products withdrawn from the separator of the hydrogenation plant.  The mixture is heated with hydrogen under 250 atmos. pressure to 420 DEG  C. in a preheater and then led through a reaction chamber the throughput being 0,18 kilograms of coal per litre of reaction space per hour.  The products are passed into a separator maintained at 410 DEG  C. from the upper end of which hydrogen and vapours escape.  High boiling products are withdrawn from the lower end and used in part for pasting fresh coal as described above.  The remainder is mixed with the products condensed in the cold separator and the mixture after centrifuging is treated at 90 DEG  C. in an autoclave with five times its volume of liquified propane.  The dissolved fraction comprising mainly middle oil, after separation of solvent, is used as a pasting agent.  The undissolved fraction having a m.p. of 50--60 DEG  C. is mixed with 25 parts of an oil boiling between 200 and 325 DEG  C. obtained by the distillation of high temperature tar and a heating oil is obtained having a m.p. between 0 and 10 DEG  C. and which forms no deposit on storage.
Patent GB-761543-A (GB)
Title: Improvements in apparatus for testing gear wheels
Inventor: LITTLEWOOD HAYDN WILKINSON
IPC: G01B5/20
Filed: 1953-02-18
Abstract: 761,543. Gauging gear-wheels. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1953, No. 4556/53. Class 106 (2). An apparatus for testing gear-wheels, Fig. 1, comprises a base 1, means 8 or 9 for rotatably supporting a first gear-wheel, a pillar 2 on which is a vertically adjustable carrier 13 carrying a pivoted arm 21 for rotatably supporting a second gearwheel in mesh with the first gear-wheel, and a second adjustable carrier 12 on the pillar 2 supporting a dial gauge 16, the probe 17 of which is in engagement with the pivoted arm 21. As the gears are rotated, one being a standard gear, any inaccuracies in the gear under test will cause the arm 21 to rise or fall and thus vary the reading on the dial gauge 16. The means for supporting the lower gear-wheel comprises adjustable V-blocks 9 and adjustable oppositely-directed centres 8. Dial gauge. The dial gauge 16, Fig. 4, has a plunger biased downwardly by a spring 41. The dial gauge feeler 45 is biased upwardly against a shoulder 43 on said plunger so that if the probe 17, screwed into the socket 40 of the plunger, is lifted to adjust the gear-wheels on the supports, the feeler 45 will rise with said plunger until the feeler 45 engages a shoulder 51 of the gauge. Thereafter the plunger may be lifted by a further amount without any corresponding movement of the dial gauge feeler 45.
Patent GB-802726-A (GB)
Title: A new phenthiazine derivative and process for its preparation
Filed: 1956-11-19
Abstract: The invention comprises 3-methylthiophenthiazine and its preparation by cyclizing 3-methylthiodiphenylamine with sulphur. In an example: 3-methylthiodiphenylamine, sulphur and a little iodine are heated under nitrogen, the mixture poured into boiling methanol and the solution concentrated, yielding 3-methylthiophenthiazine.  Starting material.  3-Methylthiodiphenylamine is prepared by decarboxylation of 2-carboxy-31-methylthio-diphenylamine.
Patent GB-275103-A (GB)
Title: Improvements in propelling systems for ships
IPC: B63H5/16
Filed: 1927-02-18
Abstract: 275,103. Meo, G. de. Feb. 18, 1927. Addition to 239,816. Propeller guards; propeller shafts, arrangement of.-In a propelling system, for ships as described in the parent Specification, a cylinder 1 is placed in the recess 2 immediately behind the propeller 3.
Patent GB-104763-A (GB)
Title: Improvements in Tensioning Devices for the Couplings of Railway, and like Vehicles.
Inventor: CRADDOCK THOMAS FLEWETT
IPC: B61G1/22
Filed: 1916-03-16
Abstract: 104,763. Craddock, T. F., (Craven, A., and Burn & Co.). March 16, 1916. Couplings, automatic.-Relates to a tensioning-device for a central buffer coupling, of the type in which the slack is taken up by a wedging action within the buffer - head. The wedges are mounted in guides in the buffer-head and are connected for positive operation of the tension-device in either direction. As shown in Fig. 3, the rotatable spindle E is fitted with left and right handed threads e, e' passing through corresponding tapped holes in the bevelled slides H, H', which operate a slide K when the spindle is turned and positively tighten or loosen the coupling. In the form shown in Fig. 5, a wedge H<2> is fitted with a screw h and the link has an inclined face k which engages with the inclined face h<2> of the wedge H<2>, the opposite face h<3> of which bears against a slotted hole in the buffer-head. The link has a slot M<2>, and the wedge H<2> a round hole, a pin L<2> being passed through the slot and hole. In modifications, the parts which bear the one against the other have tongues and grooves.