baber/WOPTO huggingface dataset:
Patent GB-252489-A (GB)
Title: Improvements in or relating to separators for wires, rods and the like
IPC: B64C3/00
Filed: 1925-03-09
Abstract: 252,489. De Havilland Aircraft Co., Ltd., and Havilland, G. de. March 9, 1925. Wire couplings.-An acorn or separator for use in preventing the chafing of bracing wires &c. in aircraft or the like, comprises a stream lineshaped body portion 10 of flexible material such as indiarubber, which is slotted at 11 and 12 to receive the bracing wires. The slots which are separated by the middle portion of the bodv 10 are disposed transversely to each other, and may be closed by an elastic binding ring 14. If necessary more than two slots may be provided or the slots may pass through the body 10 without opening into the ends thereof, so that the bracing wires have to be threaded therethrough.
Patent GB-803308-A (GB)
Title: Process for the production of dicyclopentadiene of high purity by distillation from dicyclopentadiene-containing mixtures
IPC: C07C7/04
Filed: 1957-02-26
Abstract: Dicyclopentadiene is separated from liquid mixtures by submitting the mixture to continuous distillation wherein the residence-time of the liquid in the distillation zone does not exceed 3 minutes and the bottoms-temperature does not rise above 165 DEG  C.  The distillation may be carried out in a fractionating column, and the dicyclopentadiene concentrate is continuously withdrawn from the column, e.g. as a liquid side-stream or as bottoms.  This process obviates loss of dicyclopentadiene by depolymerization.  In an example, a liquid mixture containing 1.3 per cent by weight of lower-boiling components, 98.0 per cent of dicyclopentadiene and 0.7 per cent of di-(methylcyclopentadiene) was subjected to distillation in a column connected to a re-boiler having small liquid capacity. The column was equivalent to 20 theoretical trays; and the distilland was introduced at a level approximately half-way up the column at a rate of 4.5 litres per hour.  The residence-time in the liquid phase was 2 1/2 minutes, and the bottom-temperature was kept at about 160 DEG  C.  The top product, obtained with a reflux ratio of 10:1, consisted of light components and amounted to 1.1 per cent by weight of the feed.  The bottom product consisted of 99 per cent by volume of pure dicyclopentadiene.  In the case of mixtures which contain substantial quantities of higher-boiling components, the distillation is carried out at reduced pressure; and the dicyclopentadiene concentrate is removed from the column as a liquid sidestream.
Patent GB-572597-A (GB)
Title: Improvements in and relating to the sighting mechanism of light automatic guns
IPC: F41G1/16
Filed: 1939-02-28
Abstract: 572,597. Gunsights. HARRIS, A. CAMPBELL-. Feb. 28, 1939, No. 6527. [Class 119] A backsight mechanism for light automatic guns comprises a stem A secured to the gun by means of an axis pin D extending laterally from one side of the base of the stem and having at the other side of the base a laterally extending fixed battle sight F usable in association with a tangent backsight G<2> which is adjustable longitudinally of the stem under the control of a rack C and a pinion G<3>, and which cooperates with a range-plate B.
Patent GB-415790-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1933-03-03
Abstract: Di-(perhydromethylindol)-thiuram disulphide is prepared by converting perhydromethylindol into its dithiocarbamic acid in the customary manner and oxidizing the latter by means of hydrogen peroxide.  The formula of this compound is given.ALSO:The vulcanization of rubber is accelerated without danger of scorching by the addition to the mix of a mixed accelerator comprising a thiuram sulphide which does not tend to scorch, together with an accelerator which does tend to scorch, excepting however aldehyde amine condensation products.  The thiuram sulphide which does not tend to scorch is preferably applied in an amount corresponding to about 0,1 to twice the quantity of the vulcanization accelerator tending to scorch.  Suitable thiuram sulphides are dimethyl- or diethyldiphenylthiuram disulphide, tetrabutylthiuram disulphide, dipentamethylene thiuram monosulphide. Suitable accelerators for use with the above thiuram sulphides and which tend to scorch when used alone are, dithiocarbamates, xanthogenates, mercapto arylene thiazoles, and certain thiuram sulphides such as tetramethylthiuram disulphide. In an example di-(perhydromethylindol)-thiuram disulphide obtainable by converting perhydromethylindol into its dithiocarbamic acid in the customary manner and oxidizing the latter by means of hydrogen peroxide is used.  The formula of this compound is given.
Patent GB-326011-A (GB)
Title: Improvements in or relating to apparatus for exercising the ocular muscles
IPC: A61H5/00
Filed: 1929-02-28
Abstract: 326,011. Elliott Optical Co., Ltd., and Green, W. Feb. 28, 1929. Eye instruments. - An instrument for exercising the eye, for the treatment of strabismus or phoria, shown in elevation in Fig. 1 and in part-sectional plan in Fig. 3, comprises a pair of pillars 23 each carrying a holder 27 for a lantern slide which is illuminated by an electric lamp in a casing 28 and viewed through a lens 25 and an interposed prism reflector (not shown). The pillars 23 are pivotally mounted at 22 on arms 20 themselves pivoted at 19 to the base plate 12 of the instrument, the pillars 23 being formed at their bases with discs 33 having pointers 34 adapted to move over scales 21 formed on the arms 20. Between the members 33 and 21 discs 35 are provided, freely rotatable upon the pivots 22 and having screws 37 projecting through arcuate slots 36 in the disc 35. Wing nuts 39 on the screws 37 allow the discs 35, 33 to be locked together. The discs 35 are formed with arms 40 carrying blocks 41 through which passes, a small-pitch screw 42, and on which are mounted a scale 43 and a pointer 44 respectively. The members 21 are similarly connected by a screw 46 with which cooperates a scale and pointer 47, 48. The screw 46 is restrained from longitudinal movement by collars 49 co-operating with a lug 50 on a pillar 51, the upper end of which carries an adjustable chin rest 53. Horizontal handles 32 are secured to the pillars 23, and the base plate 12 is supported on a portable block 10, being anchored thereto by a spring 18 and adjustable thereon by screws 13. The slide holders 27 may be provided with screws 30, 31 respectively permitting lateral and vertical adjustment of the slides. In use the screw 4G is set at the inter-pupillary distance of the patient, and the screw 42 manipulated until the images of the slides seen are fused; the pillars 23 are then connected together by screwing down the wing nuts 39 and are rotatably oscillated about their pivots through an angle of 20‹-25‹ as read on he scale 21, the eye being exercised by the effort of maintaining the fusion of the images. Subsequently the rocking may be carried out with initial adjustment of the images out of fusion, or such adjustment may be made during rocking by manipulating the screw 42.
Patent GB-1504497-A (GB)
Title: Device for directing a liquid jet and a liquid jet recorder incorporating such a device
IPC: G01D15/18
Filed: 1977-02-16
Abstract: 1504497 Recording apparatus SIEMENS AG 16 Feb 1977 [30 April 1976] 06563/77 Heading G1J [Also in Division B6] An ink jet writing head for recording apparatus comprises a capillary tube 6 extending coaxially through a tubular electromagnet 2 having pole pieces 17, 18 to define an air gap 20, the capillary tube 6 having at one end an outlet nozzle 7 directed transversely to the tube axis, and a permanent magnet 8 secured to the tube 6 adjacent the one end and lying within the air gap 20, the direction of the nozzle 7 being controlled in accordance with the current in the electromagnet winding 15 by rotation of at least the one end of the capillary tube 6. The capillary tube is non-rotatably attached to a filter unit 1 and rotatably supported in coaxial tubes 9, 10, 11 filled with silicone oil for vibration damping. The electromagnet core tube 14 has a longitudinal slot (28) to allow passage of the nozzle 7 when the electromagnet 2 is slidden over the tubes 9, 10, 11 and secured to a spigot 5 of the filter unit. The soft iron tubular casing 16 of the electromagnet forms a magnetic screen so that several writing heads may be used side by side in a recorder.
Patent GB-1039402-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B27/00
Filed: 1963-02-19
Abstract: 1,039,402. Multicylinder engine admission systems. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Feb. 19, 1963 [Feb. 26,1962], No. 6602/63. Heading FIB. In a multicylinder the cylinders are arranged in groups 1 . . . 3 and 4 ... 6 so that the induction periods in each group do not overlap, each group being connected through a manifold 9, 10 to an intake pipe 11, 12 which is at least 250 mm. in length, the intake pipes terminating in power equalizing chambers 13, 14. Each cylinder has means to produce air swirl therein about the axis. In the six cylinder four stroke engine shown with firing order 1-5-3-6-2-4, the cylinders are grouped 1 . . 3 and 4 . . 6. The pipes 11, 12 may lead to separate equalizing chambers 13, 14, or to a common chamber, which chamber may be formed by the air intake filter. The inlet valves are timed to open after top dead centre when the cylinder pressure has dropped to the intake pipe pressure and the exhaust valve cams are shaped to hold the exhaust valves slightly open at top dead centre.
Patent GB-903720-A (GB)
Title: Improvements in or relating to colour television signal generating systems
Inventor: EDWARDS PETER JAMES
IPC: H04N17/04
Filed: 1958-02-28
Abstract: 903,720. Colour television. POSTMASTER GENERAL. May 15, 1959 [Feb. 28, 1958], No. 6610/58. Class 40 (3). [Also in Group XXXVI] In a colour television test signal generator for use in the N.T.S.C. type of system (see Journal I.E.E., February, 1956, pages 88-97), subcarrier signals of different phases corresponding to predetermined colours are derived from a subcarrier oscillator 1 by means of a delay line DL having a plurality of pick-up means 26-32 distributed along its length in accordance with the required phases. The delay line is in the form of a cable having an outer conductor consisting of a number of separately insulated wires wound with a long pitch and forming an imperfect magnetic shield and the pick-up means comprise coils. The generator functions to produce a signal corresponding to the scanning of a vertical coloured bar pattern, the subcarrier signals being selected in sequence during a line scan interval by gates 18-24 which are opened each for 10 microseconds by a chain of trigger stages 9-16 which is set into a cycle of operation by a line suppression pulse from a generator 5. The last stage 16 is not associated with a coil on the delay line and function to produce a " white " signal. The penultimate stage 15 may be associated by means of switch 38 with any one of four coils 24a-24e. which are employed for the production of signals at phases corresponding to I, Q, R-Y, B-Y and G-Y. The signal from the gates corresponds to a conventional chrominance signal and is supplied to an output 37 via amplifiers 33, 34. Each of trigger stages 9-16 is also arranged to produce a pulse of an amplitude corresponding to the luminance value of the colour corresponding to the associated subcarrier signal, the pulses being supplied to output 37 as a luminance or " Y " signal via a mixer 35 where it is combined with composite synchronizing signals. The synchronizing signals are produced by a generator 4 which responds to frame frequency signals and twice line frequency signals derived by division of the output of oscillator 1 in stages 2 and 3. The synchronizing pulses are applied via amplifier 7 to trigger a " back porch " pulse generator which opens a gate 17 associated with a coil 25 at the 0 degree phase position to produce a subcarrier synchronizing " burst." Frame suppression pulses are also produced by triggering a generator 6 and applied to prevent the cycling of trigger chain 9-16 during frame flyback. A detailed circuit for that part of Fig. 1 to the right of the chain-dotted line is described with reference to Fig. 2 (not shown).
Patent GB-1120156-A (GB)
Title: Electrically powered can opener
IPC: B67B7/70
Filed: 1967-02-13
Abstract: 1,120,156. Electrically powered can openers. AVIATION PRODUCTS CO. 13 Feb., 1967 [28 March, 1966], No. 6715/67. Heading B8D. An electrically powered can opener has a fixed cutter 31 and movable traotion wheel 22 over which the rim of a can is inserted, a manually operated lever 23 being then moved to pivot a chassis plate 6 carrying the wheel 22, about a pin 4 (in the direction of arrow A, Fig. 7) to engage the can top with the cutter 31. On meeting resistance and with further movement of the lever 23, the plate 6 pivots momentarily on the axle 20 of the wheel 22 and slides sideways (i.e. to the left in Fig. 7) due to the bore 7 in the plate 6 being of elongated form. A cam (27), Fig. 1 (not shown), on the plate 6 engages the spring arm 26 of a member 25 which closes the circuit to an electric motor 16, thereby rotating the wheel 22 anticlockwise. The rotating wheel 22 swings the plate 6 as far to the left, Fig. 8 (not shown), as the now upwardly inclined bore 7 will allow and therefore raises the plate 6. Simultaneously the wheel 22, by engaging the can, causes its axle 20 to ride up a slot 5 in a mounting plate 3 of the can opener, both actions driving the can against the cutter 31. When resistance to the moving can ends, i.e. when the lid is cut out, the plate 6 is pivoted on the pin 4 by the spring arm 26 to break the circuit to the motor 16. The bore 7 may be of larger diameter than the pin 4 rather than of elongated form. In a modification, Figs. 3-4 (not shown), a secondary plate (55) swings with the main chassis plate (45) about a pivot pin (44), when a manual lever (62) is moved, until the can meets the cutter (42). With further lever movement, the plate (55) pivots on a boss (47) of the plate (45) and so moves sideways to actuate a spring contact arm to start the motor. Again, Figs. 5-6 (not shown), the chassis plate (74) may carry the circuit closer (78) which is actuated when a bar (80), slidable in a bore (81) in a bearing formed on the plate (74), engages the pin (75) on which the plate (74) pivots.
Patent GB-1125537-A (GB)
Title: A liquid dispenser
IPC: B67C9/00
Filed: 1967-02-13
Abstract: 1,125,537. Valves. W. SCHLATTNER. 13 Feb., 1967 [21 Feb., 1966], No. 6797/67. Heading F2V. [Also in Division B8] A liquid dispensing device includes a tube 6 and branch tube 2, the tube 6 having a liquid outlet valve 7 held closed by a permanent magnet 9 and an air inlet valve 8 held closed by a permanent magnet 19, a pin 11 enabling the liquid valve 7 to be opened and, when a member 15 fast with the magnet 9 engages an actuating pin 22, to cause the air valve 8 to open. The magnet 9 carries a sealing ring 12 and one of its poles co-operates with a ferromagnetic insertion 13 to close the valve. The magnet 19 which also carries a seal co-operates with a soft iron member 21. An apertured cover 25 is removable to enable parts of the valves to be withdrawn. The device may be operated when a hook 17 is engaged with the rim of a glass 18.
Patent GB-723911-A (GB)
Title: Improvements in and relating to pulse generating circuits
Inventor: MELVILLE WILLIAM SIMM
IPC: H02M9/06
Filed: 1952-03-17
Abstract: 723,911. Changing waveform. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 25, 1953 [March 17, 1952], No. 6839/52. Class 38 (2). A pulse-generating circuit for producing pulses of high peak value and of short duration comprises a multiple T network of series-connected saturable reactors P1, P2 ... Pn and shunt-connected saturable capacitors D1, D2 ... Dn. A sinusoidal waveform is applied to the circuit from an alternator G, the condenser C and the inductor L being arranged to form a circuit with the capacitor D1 such that when D1 is unsaturated the circuit resonates at the supply frequency. As soon as the current in the inductor L reaches a maximum value, the capacitor D1 is designed to saturate, its impedance thus increases and allows the capacitor to become charged. When the voltage across the capacitor D1 reaches a maximum, inductor P1 saturates and the capacitor D1 discharges into the inductor P1. When the current in P1 reaches a maximum, capacitor D2 saturates and the sequence of events continues until a pulse is produced in the load R. The time constants of the various charge and discharge circuits are such that the pulse in travelling along the circuit increases in peak value and decreases in duration. The Specification ineludes a statement of certain conditions which must exist between saturated and unsaturated values of the various components and also between the successive component values. Specifications 666,574 and 718,195 are referred to.
Patent GB-417509-A (GB)
Title: Improvements in pneumatic tyres and mountings therefor
IPC: B60C5/16
Filed: 1933-03-07
Abstract: 417,509. Pneumatic tyres. CASE, E. R., 36, King Street, Toronto, Canada. March 7, 1933, No. 6903. [Class 144 (ii).] A tubeless tyre is formed by an ordinary outer cover 6 to one or each edge 5 of which is secured, as by vulcanization, a metal or other rigid ring with a soft rubber facing to obtain an airtight joint through the clamping-pressure of a divided rim. In the form shown in Fig. 1, the rigid rings 2, 3 have flanged edges 7, 8 with soft rubber facings 9 which are forced into airtight contact by the expansion of a rim 10 of the split-ring type. Fig. 2 shows a modification in which a single ring has one flanged edge 16 secured to the cover 6 and its other edge 17 faced with rubber 19. In this form, the airtight joint is obtained by clamping together the parts 12, 13 of a divided rim. Fabricreinforced rubber may be used for the sealing- rings.
Patent GB-316541-A (GB)
Title: Improvements in electric motors with reciprocating armatures
IPC: H02K7/065
Filed: 1929-03-04
Abstract: 316,541. Juillerat, M. July 30, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Reciprocating machines.-The armature 6 of an electromagnet 8 is carried on a lever pivoted on a shaft 3 on which are secured two ratchet wheels 1 of the form shown in Fig. 3. The ratchet wheels are insulated from the shaft and each other and are so arranged that the long teeth of one are opposite to the short teeth of the other. A pawl 4 on the lever carrying the armature 6 and a pawl 5 on a fixed pivot are so arranged that when the armature is in the position shown by the dotted lines the two pawls bear on the same ratchet and the circuit of the electromagnet is closed through the ratchet and pawls. The armature is then attracted and brings the pawl 4 on to the other ratchet, breaking the circuit, when the spring 7 retracts the armature, turning the ratchet and closing the circuit.
Patent GB-548371-A (GB)
Title: Improvements in and relating to blades for propellors or screws
IPC: B63H1/12
Filed: 1941-06-03
Abstract: 548,371. Blades for airscrews &c. MILLAR, A. L. June 3, 1941, No. 7025. [Class 114] In a blade for a screw propeller, fan, rotor of a pump or the like of the kind in which one edge 3 is straight while the other edge 4 extends for the greater part of its length substantially parallel or slightly convergent to the first edge and then curves at 6 to meet the first edge at the tip 7 of the blade, the straight portions of each of the edges of the blade are located on lines which pass through the boss 5 to which the blade is secured, while one of the edges is located on a diameter passing through the axis of the boss. The two edges 3, 4, when the blade is attached to the boss, preferably lie in a plane at an angle to the plane of rotation of the blade. Either edge 3 or 4 may be the leading edge and, where two or more blades are mounted on a single boss, the leading or trailing edges of the several blades may be disposed in a single plane or in a number of planes parallel to the plane of rotation.
Patent GB-130108-A (GB)
Title: Improvements in or relating to Internal Combustion Engines and Vaporizers therefor.
Inventor: ROWLANDS PERCY OCTAVIUS
IPC: F02M31/18
Filed: 1918-04-26
Abstract: 130,108. Rowlands, P. O. April 26, 1918. Vaporizers, external. -Oil from two or more pipes, which come into action in succession according to the vacuum created bv the engine, flows over helical ribs 2 on the outside of a furnace 1, or it may flow over rods on or the plane or roughened surface of the vessel. Air enters through an adjustable valve at the top of the casing 8 and escapes with the vapour at 10; the air may be heated in a jacket surrounding the casing 8. Oil is supplied in excess to chambers 16 and is kept at a uniform level by escaping over a weir situated just above the top of the pipe 13 through which it flows to the vaporizer. The pipe 13 is enclosed in a case 14 having perforations 17 at its base. Air enters the chamber 16 through a port 21. The pipe 22, Fig. 4, leading from the outlet 10 to the engine contains a tapered supplementary air inlet tube 24.
Patent GB-667383-A (GB)
Title: Improvements in or connected with horticultural glazed structures
IPC: A01G9/14
Filed: 1949-03-15
Abstract: 667,383. Horticultural glazed structures. VIGUS, W. H. March 15, 1950. [March 15, 1949] No. 7030/49. Class 20(i). A horticultural glazed structure, formed of two superposed frames A, B, usable separately as a tent cloche and a cold frame respectively, has channel section members 6, 16 incorporated in the respective frames so as to abut base to base when one frame is superposed on the other, the channel members 6, 16 being adapted to be coupled together by a slide 20. Frame A may be made from a light alloy and consists of an open rectangular box framework wherein lower channel members 7, having deeper inner walls, are cut away at intervals 9, Fig 1, so that the panes of glass 8 may be lifted in and out. The upper framework is constructed of channel members 12, 13 and glass 14 in the form of a ridge frame, the ends being closed by panes of glass 15 held by the channels 16 and a tongue 17 pressed from a plate 18. When the frames are secured by the slide 20, flanges 19 on the channel members 13 rest on flanges 10 on the channel members 6. When frame A is used separately the flanges 10 support panes of glass.
Patent GB-1523065-A (GB)
Title: Method for dyeing cellulose fibres by disperse dyes
IPC: D06P3/82
Filed: 1976-02-23
Abstract: 1523065 Dyeing and printing cellulose SHIKIBO Ltd 23 Feb 1976 [27 Feb 1975] 07073/76 Heading D1B Cellulose fibre is acylated with an aromatic acylating agent having an acyl group of formula: in which X 1  X 2  Y 1  Y 3  and Z are hydrogen, halogen, alkyl, nitro, methoxy phenylazo and amino, the acylated cellulose having a degree of substitution (as defined) of 0.10 to 0.50 the cellulose is recovered and dyed with a disperse dye by conventional methods including a transfer printing process. Preferred acylating agents are benzoyl chloride, p-methoxybenzoyl chloride, p-chlorobenzoyl chloride, toluoyl chloride, p-nitrobenzoyl chloride and p-phenylazo benzoyl chloride. Acylation may be carried out (a) by treating in alkali followed by addition of an acid chloride, (b) by reaction with acylating agent in presence of a basic organic solvent, e.g. pyridinine, quinoline, dimethyl-aniline. The cellulose may be blended with polyester fibres level shades being obtained. Specification 1441203 is referred to.