baber/WOPTO huggingface dataset:
Patent GB-1356971-A (GB)
Title: Hand grips for manual implements
IPC: A63B49/08
Filed: 1971-07-15
Abstract: 1356971 Fishing rods W J SPARKS and C E SPARKS 15 July 1971 33334/71 Heading A1A [Also in Divisions A6 B4 and B5] A hand grip for a fishing rod comprises a layer of a foamed cellular vulcanised elastomer having a Shore A hardness from 20 to 50, a thickness from 0.5 mm. to 25 mm. and an apparent density from 16% to 95% of the real density of an unfoamed elastomer of essentially the same composition. The elastomer can have a filler added and the outermost surface of the grip is preferably treated so that it has a multiplicity of very small holes open at said surface and closed at the bottom to produce a vacuum effect when the grip is squeezed. The grip may be used for one hand in conjunction with a second grip of harder material for the other hand or it can be superimposed over a grip of harder material. As shown the grip 2 is applied to a shaft 1 and is of tapered form. The grip may be moulded at the top of the shaft so as to close the end or the top may be protected by a cap 6. In another embodiment the grip is folded over the top of the shaft and an end cap fitted thereover. A method of making such a grip comprises selecting an elastomer composition which will vulcanise at approximate optimum cure without a blowing agent to give a Shore A hardness from 45 to 75, adding from 1% to 5% by weight of a blowing agent and expanding and curing to form a grip having a Shore A hardness from 20 to 50. The grips can be made by extrusion moulding a blank and pressure curing the blank to the required shape. They can be formed in mirror image pairs in recurring form as shown in Fig. 4 according to a prearranged programme and cut to required lengths. The surface of the grip can be mechanically treated or treated in a mould by using an excess of lubricant and suddenly releasing the mould at an elevated temperature so as to produce an outer surface comprising a multiplicity of small cavities in the surface:
Patent GB-920414-A (GB)
Title: Improved invisible printing ink
Inventor: MANSELL WILLIAM JAMES
IPC: C09D11/00
Filed: 1958-10-20
Abstract: A printing ink which when applied to suitable absorbent paper or like material only becomes visible when the printed matter is wetted contains 10-20% by weight of an airdrying silicone composition containing not less than 50% by wt. of water-repellent silicone; 2-5% of Extra Viscous Varnish or 2% of stearic acid; and the balance of White Spirit.  A suitable silicone composition is M.S. 2202 which is of the kind described in Specifications 708,821 and 723,989 as a textile processing product.  Extra Viscous Varnish consists of 60% boiled linseed oil, 10% Copal Gum and 30% White Spirit.
Patent GB-331231-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: H01J19/28
Filed: 1929-07-23
Abstract: 331,231. Goulding, F. A., and Game, S. F. July 23, 1929. Vacuum tubes.-Thermionic valves having one or more cathodes, grids and anodes, and wherein the gas is removed from the anodes by electronic bombardment from the grids, are so constructed that the pure or thoriated tungsten grids are carried by refractory metallic supports situated between the leads carrying the heating current to the grids, the supports being attached to an insulating body of silica &c. Preferably the anodes are heated by induced currents prior to bombardment from the grids and, after sealing, a getter, such as zirconium, calcium or thorium, so mounted as to be unaffected by the prior heatjng of the anode, is volatilized in the envelope. The volatilization of the getter may be omitted, .or some may be carried on the anode for volatilization during evacuation. Fig. 1 shows one arrangement wherein the grid 4, surrounding the filamentary cathode 5, is made of tungsten and provided with conductors 7, 8 for a heating current, being supported from a silica &c. frame 6 by hooks 9 of tungsten &c. One of the conductors is dispensed with after the completion of the valve. Where two grids are employed they are arranged as shown in Figs. 2 and 3 on either side of the cathode 14 and within anode plates 15, each grid being constituted by a spiral filament 10 supported on a glass stem 11 by tungsten &c. hooks 13 and provided with leads 12.
Patent GB-393579-A (GB)
Title: Improvements relating to transmission gearing
IPC: F16H37/12
Filed: 1931-12-03
Abstract: 393,579. Conveying rotary motion; reversing-gearing. ZARB, J., 32, Blandford Square, Marylebone, London. Dec. 3, 1931, No. 33487. [Classes 80 (i), 80 (ii), 'and 80 (iii).] In means for conveying rotary motion in printing-machines, aeroplanes, &c. from a driving-shaft to an aligned driven shaft or to a number of driven shafts, which may be at different distances from the driving-shaft, a sheave 6 on an eccentric 5 secured to a driving- shaft 1 loosely carries pins 7 secured in discs 8 turning in bearings in a stationary plate 4, so that all points in the sheave move in circular paths of radius equal to the eccentric throw. This motion is conveyed directly to toothed wheels 13, Fig. 1, secured on spindles 19 aligned with the centres of the discs 8, by members 11 loose on the pins 7 and secured to drums 9 fixed on the spindles 19 and bearing in a plate 10 freely rotatable on the driven shaft 18. The spindles 19 are also supported in a loose plate 15. The wheels 13, which thus rotate at the speed of the shaft 1, gear with a wheel 17 on the driven shaft 18 or may also gear with an outer internally toothed ring, the ring and the wheel 17 being alternatively clutchable to the driven shaft to provide a reversing-gear. In the modification shown in Fig. 2, applicable to printing-machinery, discs 8 at different distances from the shaft 1 are engaged by pins 7 in the eccentric sheave, the pins engaging members 11 which are secured to pinion-bearing shafts aligned with the disc centres.
Patent GB-775903-A (GB)
Title: Improvements in or relating to control devices responsive to the direction of flow of power in an alternating current circuit
IPC: H02H3/40
Filed: 1954-11-19
Abstract: 775,903. Current direction indicators.- WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 19, 1954 [Nov. 25, 1953], No. 33559/54. Class 37. [Also in Group XXXVII] A control device responsive to the direction of power flow in an A.C. circuit comprises two resistors in series energized from a current transformer in the line, each resistor developing a voltage in phase with the line current, which are added vectorally in opposite senses to the line voltage connected to the junction of the resistances; the resultant voltages being rectified in full-wave rectifiers between earth and the outer ends of the series resistances and the rectified voltages being applied to a relay responsive thereto and to the resultant voltages so as to be actuated when a predetermined one of the latter voltages exceeds the other in magnitude. Fig. 1 shows a single-phase A.C. generator 1 driven by a prime mover (e.g. one of the engines of a multi-engined aircraft) whose energy output is connected over line 2 to a busbar for operation in parallel with other similar generators; power normally flowing into the bus-bar from each generator. A current transformer 5 in line 2 energizes equal series resistors 3, 4 whose junction is connected to the line and whose ends are connected to energize respective rectifier bridges 6, 8. The energization voltages V6, V8 (Figs. 2 and 3) are derived by vector summation in opposite senses of the voltages V3, V4 appearing across the resistors and the line voltage VL, and when energy flows from the generator to the bus-bar, V8 > V6 while when it flows in the opposite direction, V6 > V8, and the rectified voltages V1 and V2 are respectively proportional to V6 and V8. Windings 12, 13 of a polarized relay 11 are ,energized in series with the respective outputs of the rectifiers, whose junction is connected over common resistor 14 to the junction of the relay windings so that the winding currents il and i2 are opposed, and contact 15 is closed only when V6 > V8, V1 > V2, and il > i2 to operate an indicating device or to trip a circuit breaker to disconnect generator 1 from the busbar when it absorbs energy from the system. The relay is adjustable (Fig. 4, not shown) to operate at any value of current representing a predetermined level of reverse energy. In a modification (Fig. 5, not shown) the doublewound polarized relay is replaced by a non- polarized relay in series with rectifier 6 and the common resistor, and a variable resistor similarly connected in series with rectifier 8, which resistor is adjustable to determine the relay operating point at any value of reversed energy flow (Fig. 6, not shown). The device is applicable to one or more of the phase lines of a polyphase system, and by replacing resistors 3, 4 by capacitors may be made responsive to reactive energy components. By reversal of the current transformer polarity it may be made responsive to energy flowing from the generator to the bus-bar.
Patent GB-839341-A (GB)
Title: Improvements in or relating to electric current-supply installations in ships
IPC: H02P9/38
Filed: 1956-11-02
Abstract: 839,341. Alternators; automatic voltage control systems. SIEMENS-SCHUCKERTWERKE A.G. Nov. 2, 1956 [Nov. 5, 1955], No. 33570/56. Classes 35 and 38 (4). The frequency/voltage ratio on the power network 4 supplied by a three-phase alternator 1 is maintained substantially constant by an arrangement comprising split transformer primary windings 2a, 2b the secondary 2c of which provides the alternator field through a rectifier 6; the winding 2b being connected to the line side of winding 2a by an inductor 8 and at least a part of it being shunted by a condenser 9. The ohmic resistance values of the inductors are chosen to give the desired slope to the resulting resonance curve which is made resonant at the mid-point of the speed range.. A constant voltage is provided on distributer network 5 by a voltage-sensitive oil-pressure regulator 11 controlling a double-phase shifting transformer 10.
Patent GB-448229-A (GB)
Title: Arrangements in centrifugal separators for prevention of foam creation
IPC: B04B11/08
Filed: 1935-12-04
Abstract: 448,229. Centrifugal machines. KONE JA SILTA O.Y.-MASKIN OCH BRO AKTIEBOLAGET, (formerly MASKINOCH BROBYGGNADS AKTIEBOLAGET), Helsingfors, Finland. Dec. 4, 1935, No. 33589. Convention date, Dec. 29, 1934. [Class 23] The formation of foam in a separated component of a liquid mixture is prevented by the passage of the component through inwardly expanding radial channels and its discharge through a pipe extending upwards through the feed pipe. The upper part 1 of the rotating bowl contains a " catcher " 2, the outside cylindrical wall of which has a slit 3 sloping outwards and downwards. Divergent channels 5 lead inwards from the slit and communicate with the discharge pipe 14. A nut 13 secures the pipe 14 to the feed pipes 12, 11. A wall 17 encloses the vertical parts of the pipes and the chamber thus formed contains a float 20 secured to a sleeve 20a with apertures 22 in proximity to apertures 15 in the feed pipe 11. The liquid mixture is supplied through the pipes 12, 11 and the apertures 15, 22 to the float chamber 17. From this it passes through apertures 16, 23, 18 into the bowl. After separation the light non-foaming component is discharged through the channel 10 while the heavy component, which is subject to foam creation, passes up through the channels 7 and the slit 3 into the " catcher " 2. It then passes through the divergent channels 5, where some of its kinetic energy is converted to pressure, and is discharged through the tube 19. If the liquid supply is excessive, the level rises in the chamber 17 and the float is lifted, thereby moving the apertures 22 upwards to diminish the area of the apertures 15, 22 available for the passage of the liquid.
Patent GB-206729-A (GB)
Title: Improvements in or relating to gravity railways or the like amusement apparatus
IPC: A63G7/00
Filed: 1922-12-08
Abstract: 206,729. Walker, J. R., and Pickard, A. H. Dec. 8, 1922. Tracks for recreation. -The cars or the like 1 for a gravity railway are pivotally connected to, or near to, one side of the track 2 at or near their front ends, and the track has one or more curves 5 round which the cars are swung by centrifugal force. As shown in Figs. 5 and 7, the car or mat 1 is pivotally connected at 9 to a link 10, which is secured to a bar 11 carrying rollers 12 disposed between upstanding rails 14. Plates 15 prevent the rollers 12 from becoming disengaged and serve as rails for two or more pairs of rollers 16 carried by the bar 11. Rollers 21 may be secured to the sides of the car. A link 24 secured at one end to the car 1 and at the other to a sleeve 23 pressing against a spring 26 on a rod 22 ensures the car swinging inwardly after rounding a corner. Alternatively, a spring-pressed arm secured to the front of the car and carrying a roller which engages one of the rails 15 may be employed. In the modification shown in Fig. 9, an arm 32 carries a roller 31 which engages an outer rail of the track, a link 33 and spring 36 being employed to swing the car inwardly. The link 10 may carry a grooved roller 18 engaging plates 9 instead of the depending roller 12, and the rails 14 may be arranged horizontally and the wheels 12, 18 in a vertical plane. Laminated springs may be employed in place of the arm 32. A groove, preferably V-shaped, may be formed in the outer portion of the track to be engaged by a correspondingly shaped skid on the car, to increase the swinging at the curves 5. The car 1 may be freed from the rails 14 near the end of the journey, being engaged before or after reaching the elevated starting point, to which they are carried by hand or by an escalator 7. The body of the car may be rigid and provided with castors 3, or it may consist of a mat with a rigid periphery.
Patent GB-901086-A (GB)
Title: A novel glycosidal chalcone
Inventor: POINTET-GUILLOT MICHELINE
IPC: C07H17/07
Filed: 1958-10-21
Abstract: The invention comprises a glycosidal chalcone forming yellow crystals of melting point 139 DEG C., having the formula C27H32O13, giving an R.F. number of 0.4 on chromatographic analysis with "Whatman" (Registered Trade Mark) No. 1 paper and 15% acetic acid as solvent, and giving a brown spot to U.V. light, a yellow colouration with alcoholic potassium hydroxide and a positive reaction to citroboric acid.  The glycosidal chalcone is obtained by extracting the root of Glycyrrhiza, particularly Glycyrrhiza glabra L. with an anhydrous straight or branched chain aliphatic alcohol of not more than 8 carbon atoms e.g. isobutyl alcohol (suitably after de-fatting by extraction with carbon tetrachloride, ether, benzine, benzene, chloroform or hexane), recovering the chalcone by concentrating the alcoholic extract under reduced pressure and, if desired, purifying by washing with a solvent in which the chalcone is insoluble, such as ether or petroleum ether, and re-extracting and recrystallising with a C1-8 aliphatic alcohol.  The compound is used pharmaceutically (see Group VI).  Specification 901,085 is referred to.ALSO:Pharmaceutical compositions, having anti-spasmodic activity, contain as the active ingredient a glycosidal chalcone forming yellow crystals melting at 139 DEG  C., of the formula C27H32O13, having an RF number of 0.4 on chromatographic analysis with a 15% acetic acid solvent, using "Whatman" (Registered Trade Mark) No. 1 paper, giving a brown spot under U.V. light, a yellow coloration with alcoholic potassium hydroxide and a positive reaction to citroboric acid (see Group IV (b)).  The preparations are used in the treatment of gastrointestinal diseases characterized by muscle spasm, and as detoxicants in the use of antibiotics and antirheumatic compounds such as cortisone, phenylbutazone and aspirin.  The preparations may be administered by oral, rectal or parenteral routes, for example, as tablets, capsules, suppositories and injectable solutions, which may contain conventional excipients.  In addition, the glycosidal chalcone may be admixed with the diglycoside flavanone described in Specification 901,085.
Patent GB-1014340-A (GB)
Title: Improvements in or relating to electrodes for gaseous discharge lamps
IPC: H01J61/073
Filed: 1964-08-18
Abstract: 1,014,340. Making electrodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 18, 1964 [Aug. 21, 1963], No. 33694/64. Heading B3A. [Also in Division H1] An electrode containing electron emissive material for a gas-discharge lamp of the kind which is ignited by means of a glow discharge comprises a coil 2 of coiled tungsten wire surrounding and supported by a central core wire 1 which projects from the coil at the end 3 thereof facing the discharge, the wire of the coil being thin with respect to the core wire 1 and the turns of the first winding of the coil being arranged so that they do not contact one another, and the electron - emissive material being located for the greater part within the first winding. Preferably the coil wire diameter is less than <SP>1</SP>/ 3  of the  core wire diameter and the pitch of the first winding of the coil is greater than 1À5 times the thickness of the coil wire. A second coil similar to the first coil may be wound over the outside of the first coil (Fig. 2, not shown). The first winding is formed by winding tungsten wire around a molybdenum mandrel (or a tungsten mandrel of a diameter preferably less than <SP>1</SP>/ 3  the diameter of the first winding together with molybdenum mandrels) and winding the first winding about a steel mandrel to form the second winding. The steel mandrel is then pulled out and the molybdenum etched away. The coil is then dipped in a suspension of carbonates of the emissive material, which may be barium, calcium, strontium or thorium, the coil is then fitted on tungsten core wire and the carbonates converted into the emissive material, i.e. the oxides by heating. A specific example with dimensions is given.
Patent GB-780993-A (GB)
Title: Improvements in or relating to sealing glands for electric cables
Inventor: LATIMER KENNETH ERIC
IPC: H01B17/30
Filed: 1954-11-22
Abstract: 780,993. Mechanical couplings for cable sheathing. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd. Nov. 22, 1955 [Nov. 22, 1954], No. 33786/54. Class 38 (1). A sealing gland between a cable 2 and a casing 3 consists of a gland body 1 of resilient material compressed between plates 4, 5 which are drawn together by bolts 6, the gland body being united with one of the plates, e.g. by vulcanizing or an adhesive, so that when it is desired to break the seal, the gland body can be stretched by separating the plates. One method of doing this is shown in Fig. 3. The body 1 is attached to plate 5 and to separate the plates, bolts 6 are unscrewed until they abut plate 5, bolts 9 loosely carried by a jig plate 8 then being screwed into apertures in plate 4 so as to draw the jig plate towards bolts 6 and use them as plungers to force plate 5 and body 1 away from plate 4. Alternatively the holes in plate 4 for bolts 6 may be larger than these bolts and tapped so that after removal of bolts 6, further bolts may be screwed into plate 4 and through the body 1 to abut plate 5 and force it away from plate 4. In another arrangement plate 4 may be drawn away from plate 5 by a jig plate bearing against the end of casing 3.
Patent GB-325290-A (GB)
Title: Improvements in and connected with incandescent gas burners
IPC: F23D14/30
Filed: 1928-11-17
Abstract: 325,290. Bromley, H. H. Nov. 17, 1928. Incandescent gas burners; burners, materials for.-In an inverted incandescent gas burner, a globe ring a formed with a diametral strip b .from the sides of which extend upwardly and outwardly bent deflectors c is surmounted by an inverted conical deflector j having a base of greater diameter than the globe ring a. In the form shown, the strip b is clamped between a shoulder on a short tube e and a member f screwed on the spigot portion e<1> of the tube e and the burner nozzle h is screwed on the member f against an asbestos washer g. The deflector and an asbestos washer l are clamped between a flange k<2> on the burner tube k and a nut m and the lower end k<1> of the tube k is screwed into the upper end of the tube e. The globe ring a and the deflector j are preferably made of aluminium alloy, the deflector being polished on the underside and formed with an aperture o for the passage of a bye-pass tube.
Patent GB-869257-A (GB)
Title: Spectroscopic apparatus
Inventor: SAUNDERSON JASON L
IPC: G01J3/06
Filed: 1957-10-30
Abstract: 869,257. Spectroscopic apparatus. BAIRDATOMIC Inc. Oct. 30, 1957, No. 33823/57. Class 40(3) [Also in Groups XX and XXXV] Spectroscopic apparatus in which changes in the spatial relationship between the various components due to variation in ambient temperature are compensated by the reorientation of the light dispersal member in response to a received monitor radiation. Light from the sample 24, Fig. 1, under test passes through a lens 34 and slit 36 and is reflected by a mirror 38 to a dispersal member 40 comprising a curved diffraction grating. Preselected portions of the resulting spectrum pass through slits 42 and are reflected by mirrors 44 to the photo-multipliers 46. A twin beam of monitor radiation, each beam alternately radiating at mains frequency, is generated by a lamp 50 and pasess via lens 52 and slit 54 to the diffraction grating 40. The beams are directed by the grating to the offset slits 56 and 58 and hence via the mirror 60 to the photo-multiplier 62. The apparatus is initially adjusted to allow equal amounts of light to enter each slit thus generating in the photo-multiplier an equal voltage during each half cycle of mains frequency. Any change in spatial relationships causes the beams to deviate from their set position and produces an unbalance in the photo-multiplier output voltage. This voltage is applied via the transformer 144, Fig. 5, to the amplifying valves 146, 148, 150 and 152 and the output of valves 152 is applied to the winding 160 of the transformer 154. The centre tap of this winding is connected to one winding of a split phase servomotor 102 having a second winding 168 which is connected to the mains supply via a condenser 170. When the monitor radiation to each slit is equal the screwed shaft 112 of the motor 102 is subjected to equal and opposite torques each half cycle and remains stationary. However, when inequality arises the motor shaft is turned and alters the position of a screwed block 114 which is coupled via a spring 116 to the bar 82 attached to the grating mount 40. Movement of the bar reorients the mount to rebalance the light incident on the slits 56 and 58 hence ensuring that the dispersed bands of light produced by the specimen are maintained incident on their respective wavelength slits.