baber/WOPTO huggingface dataset:
Patent GB-252030-A (GB)
Title: Press-ring for the support of screws and nuts
IPC: F16B43/00
Filed: 1926-05-11
Abstract: 252,030. Ehrhardt, P. G. May 11, 1925, [Convention date]. Joint-making packing. -A washer a has a part d which extends into an annular space round a screw or bolt g fixing a part e and is pressed against the wall of the hole of the part e when compressed by the screw or the nut c. The nut has a conical base b and the washer is made of springy material so as to lock the nut. If however the bolt and the hole in the member e are eccentric, the washer should be made of ductile material and bent outward at its lower extremity.
Patent GB-1143529-A (GB)
Title: Manually operated sound reproducing device
Inventor: TOMIYAMA EIJIRO
IPC: G11B3/00
Filed: 1967-03-15
Abstract: 1,143,529. Play-back apparatus. TOMY KOGYO CO. Ltd. 15 March, 1967, No. 12214/67. Heading G5R. A manually operated sound reproducing device comprises a grooved pulley 26 carrying a recorded disc 26<SP>1</SP>, the pulley being rotatably mounted on a shaft 25 between a support plate 14 and a base-plate 11 which carries a soundcone 12. Pulley 26 is driven by a belt 42, Fig. 1, when a toothed wheel 29, which is mounted on a movable flywheel carrying shaft 30, is brought into engagement with a pinion 38 by means of a driving wheel 36 on turning a hand crank 34. When rotation of driving wheel 36 is stopped, toothed wheel 29 disengages from pinion 38, but flywheel 37 continues to drive belt 42. A tonearm 45 carries a stylus 44 adapted to engage sound grooves 43 in disc 26<SP>1</SP>. Tone-arm 45 has wing-like portions 50, 51 which are normally in contact with the apex of sound-cone 12 so as to transmit vibration of the stylus to the cone. When the stylus reaches the end of sound groove 43 it enters a recess 54, Fig. 4, in pulley 26 and the pulley is urged by a coil spring 53 into a position nearer base-plate 11, in which position a projection 60 or 61 on a block 55 engages a stopper 62 on the base-plate. Block 55 is slidably and rotatably mounted on shaft 25. Engagement with stopper 62 causes projections 60, 61 to run on cam surfaces 58, 59 in recess 54 so that the stylus 44 is released from the recess 54 and returned by the action of a spring 49 to the starting point of sound groove 43. Further rotation of the pulley 26 will release projections 60, 61 from the inclined surfaces allowing block 55 to be returned by spring 56 and thus releasing projections 60, 61 from engagement with the stopper 62 to enable the record to be played again.
Patent GB-558999-A (GB)
Title: An improved interval meter and indicator therefor
IPC: G01S1/72
Filed: 1942-08-31
Abstract: 558,999. Indicating apparatus. HUGHES & SON, Ltd., H. (Bludworth, T. F.). Aug. 31, 1942, No. 12242. [Class 106 (iv)] [Also in Group XVIII] An interval meter and indicator is characterized in that the interval of time between the happenings of two successive events is ascertained, converted into a length and presented to the observer as a rectilinear band or column of light in proximity to a fixed scale by which the length of said band or column can be measured. In a device for indicating the depth of the ocean, a stationary cylinder 13 with a vertical window 14 encloses a cylindrical shutter 24 rotated by a constant speed motor. The shutter is divided by a helical line 25 into an upper opaque part and a lower translucent part. Alternatively the translucent part is omitted or the two parts are differently coloured. The shutter encloses a neon tube 10 or other suitable lamp, and when the opaque part 31 completely masks the tube, contacts 29, Fig. 3 (not shown) close and discharge unit 2 causes transmitter 4 to send a sonic or supersonic signal to the ocean bed from which it is reflected to receiver 5 and amplifier 8 so as to extinguish the neon tube which was lighted when the signal was sent out, or to flash the neon tube if not previously lighted. The amount of neon tube uncovered by the shutter indicates on scale 15 the depth of water. The device may be used in media other than water and other than vertically, e.g. for determining the distance of the shore.
Patent GB-474392-A (GB)
Title: Improvements in forms for shoes and methods of and apparatus for shaping the foot openings of shoe uppers
IPC: A43D8/00
Filed: 1936-04-30
Abstract: 474,392. Finishing shoes. DODGE, M. L. April 30, 1936, No. 12311. Convention date, May 6, 1935. [Class 17 (i)] Relates to apparatus for shaping the foot opening of shoes, of the kind described in Specification 447,746, and consists in improved forms and co-operating pressing members intended for treating shoes having an upward extension at the forward end of the foot opening, and Blucher Oxford shoes. The forward part of the form is convex on each side, sloping upwardly and forwardly to a ridge 40 at the vertical plane of the lateral centre of the shoe opening. This ridge extends rearwardly and upwardly beyond a point c corresponding to the extremity of the upward extension of the shoe. The portions of the form corresponding to the edges of the sides of the shoe opening are cut away to present inturned portions following the contour of these edges. The form may extend substantially to the sole of the shoe, so that wrinkles in the lower portions of the linings may be removed. To prevent slight wrinkles being formed in the vamps of light shoes a spring attached to the form may carry a shoe engaging member, or may itself engage the shoe. Springs 145, 147 may urge the toe end of the shoe downwardly; or springs 123, 131 may carry members 120, 130 engaging the inside of the shoe forward of the form to produce a slight upward pressure. Clearance may be provided for eyelets on the uppers by recesses 90 on opposite sides of the form or cut-away portions of the co-operating pressure member. This member has an upward extension corresponding to the upward extension of the shoe. When the inner form extends to the sole of the shoe a recess 59 may be provided for the tongue of the shoe.
Patent GB-432306-A (GB)
Title: Improvements in or relating to spectrophotometric analysis and prediction
IPC: G01N21/25
Filed: 1934-04-24
Abstract: 432,306. Photometric apparatus. HILGER, Ltd., A., 98, King's Road, Camden Road, London, and PINEO, O. W., 60, Main Street, Milo, Maine, U.S.A. April 24, 1934, No. 12340. [Class 97 (i)] In a spectrophotometer for recording the light transmitted or reflected by a specimen at different wave-lengths, means such as a cam arc provided whereby the scale of measurement is modified so that the record represents the measured light-transmitting or reflecting properties of the specimen in a form exhibiting the specific light-absorbing properties of the substance of which the specimen is composed. In measuring transmission, the scale of transmission, t, is modified, to have uniform intervals of log. log. I/t, so that the curves obtained have a shape independent of the thickness of the specimen. In measuring reflected light, the scale of reflectance, r, is modified to have uniform intervals of an appropriate function of reflectance such as log (1-r) /(r-s), where s is the reflectance due to surface glossiness alono and may be equated to zero in appropriate cases, so that the shape of the curves obtained is independent of the light-diffusing properties of the substance of which the specimen is composed and of the surface glossiness of the specimen. Optical means may be provided for cancelling out the effect of surface glossiness ; in a spectrophotometer making use of polarization such means may comprise a thin birefringent plate inserted in the light path and so positioned that the modification of light produced by its chromatic variation of phase change compensates for the surface reflection over the desired wave-length range. Cam &c. means may also be provided to modify the wave-length scale so that it becomes a uniform scale of a function of the wave-length such as frequency, the shape of the curve obtained then being independent of the chemical nature of the vehicle in which the specimen is supported.
Patent GB-527986-A (GB)
Title: Improvements in or relating to folding tables
Filed: 1939-04-25
Abstract: 527,986. Folding tables. HOLLAND, H. H., and BRIDGER, C. R. April 25, 1939, No. 12388. [Class 52 (iii)] The leg members 6 at each end of a table top 5 are hinged to a cross bar 7, and a block 8 is hinged to the leg member for swinging sideways so that when the leg member is folded inwards the thickness of the block will be accommodated in the space between the underside of the table top and the inner surface of the folded leg member, and a bar 9 is provided on the underside of the table top for the abutment of the block 8 when in operative position. The leg members 6 when in the open position are braced by a connecting bar having T-shaped ends 12, Fig. 4, fitting into slots 14, the presence of the bar maintaining the block 8 pressed against the bar 9. When the table is in the folded condition, the connecting bar may be held with its ends in recesses 15 by means of fasteners 16.
Patent GB-310334-A (GB)
Title: Improvements in pistons
IPC: F02F3/18
Filed: 1929-04-22
Abstract: 310,334. Gazda, A. April 23, 1928, [Convention date]. Pistons, cooling.-A chamber 3, formed in a piston by an inner shell 2, is partly filled with a conducting substance 4 such as salts of potassium or sodium or powdered light metal, the movement of which cools the piston head. The Specification as open to inspection under Sect. 91 (3) (a) states that water or oil may be employed as the filling material. This subject-matter does not appear in the Specification as accepted.
Patent GB-592384-A (GB)
Title: Improved distillation processes
Filed: 1945-05-17
Abstract: 3-Picoline, 4-picoline, and 2.6 lutidine are recovered from mixtures containing them but free from water, e.g., coal tar fractions boiling about 140-145 DEG C. by adding phenol to the mixture and distilling off azeotropes of these compounds with the phenol from which the compounds themselves may be recovered. A commercial mixture of 500 parts coal tar containing 30 per cent. 2.6 lutidine, 35 per cent. 3-picoline and 35 per cent. 4-picoline was mixed with 1200 part commercial phenol and the mixture distilled in a still with a column equivalent to 20 or more theoretical plates.  After separation of a forerun of 1 per cent. maximum boiling azeotropes of 2.6 lutidine, 3-picoline and 4-picoline were collected in that order at temperatures in the range 186-191 DEG C.  The middle fraction was redistilled and a middle 80 per cent. fraction collected, treated with sodium hydroxide and the 3-picoline distilled off; the other fractions were treated similarly.
Patent GB-1465315-A (GB)
Title: Display devices
IPC: G09G3/36
Filed: 1974-03-20
Abstract: 1465315 Controlling light MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 March 1974 [20 March 1973 20 April 1973] 12449/74 Heading G2F [Also in Division G5] In a display device in which liquid crystal material between two electrode exhibits a sharp change in optical transmission at a threshold potential difference V th , Fig. 2, and in which reversion to the original state is rapid if the potential difference is removed or much reduced, but takes longer if the reduced potential difference is above a critical value V c , Fig. 5, potentials of substantially the same waveform, average D.C. level, frequency and amplitude are applied to both electrodes, their relative phase being altered to provide a potential difference above Vth e.g. 180 degrees out of phase, or below V c  e.g. in phase for a zero potential difference. The potential at one electrode is selectively applied in lieu of a D.C. level at the said average D.C. level, the latter providing a potential difference between V c  and Vth for prolonging the optical state of the liquid crystal, for example in a time multiplexed matrix display. In such a display the selectively applied potential forms a row addressing signal, the rows being addressed sequentially, and potentials are applied continuously to each column, their plans being controlled in synchronism with the row addressing. A similar method applies to addressing a plurality of seven segment displays Fig. 8 (not shown), in which the segments are equivalent to columns and the rear electrode for each seven segment array is equivalent to a row. As particularly described the liquid crystal material is a cholesteric material which is converted from a light scattering state to a transparent nematic phase above V th . It may be formed of one or more nematic compounds with positive dielectric anisotropy (DA) mixed with an optically active or cholesteric material. Nematic compounds with negative DA may also be present.
Patent GB-1131871-A (GB)
Title: Device for raising one pair of wheels of a tandem axle suspension in lorry bogies
Inventor: IVARSSON HARRY GOSTA LENNART
IPC: B62D61/12
Filed: 1966-03-22
Abstract: 1,131,871. Tandem axle suspensions. HIAB ALINGSASVERKEN A.B. 22 March, 1966, No. 12520/66. Heading B7D. In a tandem axle suspension comprising a longitudinal leaf spring assembly 11 connected to the forward wheels 13, the rear wheels are carried by longitudinal levers 9 pivotally mounted on a transverse shaft 5 and connected by links 10 to the leaf springs 11. A double arm lever 15 is also pivoted on the shaft 5, and has one end pivotally connected to an hydraulic jack 18 while the other is connected to a transverse member 20 having semi-cylindrical end portions 21 which can engage beneath inwardly directed stud members 22 extending from the journal of each rear wheel 8. In the retracted position of the jack 18 the rear wheels are load-bearing, as shown, and by expanding the jack, the members 21 and 22 are engaged and the rear wheels are raised.
Patent GB-808605-A (GB)
Title: High resistance semiconductor cells
IPC: H01L21/06
Filed: 1957-04-17
Abstract: 808,605. Solid state rectifiers. WESTING- HOUSE AIR BRAKE CO. April 17, 1957 [April 30, 1956], No. 12527/57. Class 37. A method of producing a high-resistance semi-conductor cell comprises the steps of evenly distributing amorphous powdered selenium on a base-plate, sprinkling, on to the selenium, granules of an inert, non-conductive, thermally stable material (e.g. silica gel, glass, silica, alumina, mica), pressing with heat to bond the selenium to the plate, annealing the selenium, forming a barrier layer as by immersion in a sodium hydroxide solution, and applying a counter-electrode. As described, the baseplate is formed by spraying a layer of steel on to a roughened, cleaned, aluminium plate. To the powdered selenium is preferably added selenium dioxide, sodium chloride, sulphur and water. A large rectifier plate produced according to the invention may have small individual cells punched out of it.
Patent GB-129150-A (GB)
Title: Improvements in and relating to Rotary Pumps and Motors.
Inventor: MACTAGGART HUGH HOLMES
IPC: F03C1/36
Filed: 1918-08-02
Abstract: 129,150. Mactaggart, H. H., and Scott, R. G. Aug. 2, 1918. Concussion, preventing; revolving - cylinder pumps.-In a revolving-cylinder pump or motor of the radial type, in which the rotor 1 revolves on a fixed D-shaped or like tubular valve 2 provided with suction and discharge passages 7, 8, a series of holes 5 are formed in the valve to connect the cylinders with the passages 7, 8, for the purpose of allowing the pressure to come on the cylinders on the discharge side and off on the suction side gradually. A slight lead may be given to the valve.
Patent GB-1002922-A (GB)
Title: Conversion process and catalysts
IPC: C10G47/16
Filed: 1961-11-29
Abstract: In a method of hydrocracking a hydrocarbon feedstock to produce lower boiling hydrocarbons in the gasoline range, the feedstock at 450-850 DEG  F. and 800-3000 p.s.i.g. is treated with hydrogen in the presence of an at least partially decationized crystalline, zeolitic, aluminosilicate molecular sieve having SiO2/Al2O3 mole ratio greater than about 3 and a relatively uniform crystal pore diameter between 6 and 14 <\>rA, and intimately associated therewith a minor proportion of a transition metal hydrogenating promoter selected from Group VI<\>rA or VIII of the Periodic Table.  Oils cracked are straight run gas oils, heavy naphthas, coke distillate gas oils, deasphalted crude oils and cycle oils derived from catalytic or thermal cracking.
Patent GB-548612-A (GB)
Title: Improvements in and relating to lightning arresters
IPC: H01T4/20
Filed: 1941-10-03
Abstract: 548,612. Lightning arresters. BRITISH THOMSON-HOUSTON CO., Ltd., Oct. 3, 1941, No. 12783, Convention date, Oct. 3, 1940. [Class 38 (iv)] In a lightning arrestor with series spark-gaps and series resistance between each gap and the next as in Specification 494,178 a more reliable performance of the arrester is obtained by providing ionizing means near one of the gaps serving to start off the discharge at a voltage below the normal breakdown voltage and, of course, above the maximum line voltage. As shown applied to the lowest gap 26, 27 consisting of electrodes mounted upon the resistance ring 25, the ionizing device consists of two auxiliary electrodes 31 mounted upon or carried by the spark-gap electrodes and held apart by a mica plate 38 carried by an insulator secured to the blades of the auxiliary electrodes. The distance between the electrodes is adjusted to give the desired performance by additional applied mica discs 39. Specification 538,269 also is referred to.
Patent GB-220372-A (GB)
Title: Improvements in or relating to centre buffer coupling apparatus for railway vehicles
IPC: B61G9/02
Filed: 1923-05-14
Abstract: 220,372. Boonzaier, G. J., and Holland, I. K., (Executors of Boonzaier, W. G.). May 14, 1923. Combined buffer and draw-gear.-A centre buffer coupling, which may be that described in Specification 204,836, is applied to a vehicle with side buffers having a transverse spring by means of a rigid transverse buffer cross-bar, the ends of which engage the transverse spring directly or indirectly, and by means in the centre buffer drawbar for engaging the transverse buffer cross-bar. The transverse buffer bar 6 bears on the shoes 3 of the buffer rods 2 and is pierced at its centre for the passage of the circular part of the draw-bar 5, the end of the squared part 5<a> of which abuts the traiasverse cross-bar 6 at 5<c>. A shackle 8 straddles the transverse spring 4 and is connected to the through draw-bar 7<a> by the pin 9<a> and elongated slot 8<a>. When the centre buffer coupling is buffed the end 5<c> of the draw-bar bears against the transverso bar 6 which is forced inwardly to compress the spring 4, and when under draught the pull on the draw-bar is transmitted to the transverse bar 6 at the other end of the vehicle to compress a corresponding spring 4 in contact with it. In a modification, the transverse crossbar 6 is spaced at a greater distance from the headstock, and the through draw-bar 7a is rigidly connected at the ends to both transverse bars 6, and the draw-bar 5 is rigidly connected to the transverse bars 6 by a sliding cradle which is spaced from the headstock to provide longitudinal movement for the draw-bar when under draught or buffiug.
Patent GB-764541-A (GB)
Title: Improvements in or relating to electric light fittings
IPC: H01R33/08
Filed: 1954-05-05
Abstract: 764,541. Gas discharge tube light fittings. POLE, J. C. May 5, 1954 [May 19, 1953], No. 13111/54. Class 75(4) An electric gas discharge tube light fitting having the parts that are energized when the light is operating centralized in a housing 9 with a closure part 10 arranged on opening to switch off the one a@  voltage supplied to the electrodes, has also an additional safety device such as a fuse 13 or overload relay controlling the primary circuit of the supply transformer 3 and arranged so that it is accessible only by opening the part 10. As shown the discharge tube 1 is circular with two inwardly directed parallel limbs 2, 2, and the periphery of the tube is concentric with the housing 9 which encloses the electrodes, clamps 7 and 8 supporting the tube from the housing, the transformer comprising an iron core 3, a primary winding 4 and a secondary winding 5, and a compensating condenser 6. The part 10 is hinged at 17 and is secured in closed position by a spring clip 18, and carries a knob 12 arranged on closure of the part 10, to operate a push-button switch 11 to close the primary circuit 4. The switch 11 may be secured to the transformer core 3. The casing 9 is supported from a ceiling by a suspension tube 14 and ceiling rose 15 accommodating the feed wiring of the fitting. The tube 1 may be oval or other shape symmetrical about one axis. In an alternative embodiment described two U-shaped tubes are placed symmetrically about the housing 9 and the contact is arranged, on opening of the part 10, to short-circuit the secondary winding of the transformer and the safety device in the primary circuit need then only be of such capacity as that required for operation of the tubes and it is not necessary to so dimension the transformer that it is proof against-short circuit overloads.
Patent GB-455388-A (GB)
Title: Improvements in or relating to thermostats
IPC: H01H37/52
Filed: 1935-05-02
Abstract: 455,388. Thermal switches. UNITY HEATING, Ltd., Unity Works, and TURNER, C. C., 51, Salisbury Road, both in Welwyn Garden City, Hertfordshire. May 2, 1935, No. 13145. [Class 38 (v)] A thermal switch comprises two oppositely acting bimetallic strips 1, 2, carrying co - operating contacts 3, 4, a snapaction being ensured by means of a bar magnet 5 and an armature 6. The lower ends of the bimetallic strips are carried by insulating members 20, 22 fixed to metal members 11, 12 rotatable about a pivot pin 13 and biassed together by a C-shaped spring 15. The members 12, 21 are fixed to the bottom of the casing and temperature setting is effected by moving the member 20 against spring 15 by means of a nut 19 on a screw 16 movable by a knob 22. Specification 455,397 is referred to.
Patent GB-1468067-A (GB)
Title: Image recording member
IPC: B41M5/20
Filed: 1974-03-25
Abstract: 1468067 Recording members CANON KK 25 March 1974 [26 March 1973 (2)] 13192/74 Heading B2E A recording member which exhibits changes of colour in response to a locally applied stimulus, e.g. heat or an electric current, has a recording layer which contains a colour forming agent sensitive to the stimulus in the presence of a distributed liquid, e.g. water, and a vehicle for such a liquid comprising a zeolite and a binder if necessary. The recording layer may be applied to a substrate, e.g. plastics film, metal, metal film or powder treated paper or carbon treated conductive paper. A recording sheet may comprise a recording layer 1, a conductive layer 2 and a substrate 3 or simply a recording layer 1 and a substrate 3. A conductive layer 5 may be prepared by removing the colour forming agent to colour forming layer 6. Stimulation by electric current from power source 4 via electrode 8 and stylus 7. Numerous zeolites are listed. Colour forming agents include leuco compounds of diphenylmethane dyes, leucoauramines, leuco compounds of triphenylmethane dyes, xanthenes, acridines, azines, oxazines or thiazines. Other suitable agents include reductants of indigo and its derivatives, benzoquinone dyes, napthaquinone dyes and anthraquinones. Also suitable are aromatic amino compounds, phenols and reductants of sulphide dyes. Many other compounds sensitive to an electric current or to heat are listed. Numerous suitable synthetic resin binders are listed. Other suitable binders include gelatine, starch, cellulose derivatives, e.g. cellulose nitrate and carboxy methyl cellulose, and treated natural rubber, e.g. chlorinated rubber and cyclised natural rubber. Other suitable stimuli include an electron beam, an ion beam, a laser or an infrared beam.