baber/WOPTO huggingface dataset:
Patent GB-502462-A (GB)
Title: Improvements in gyroscopic horizons allowing the reading of great longitudinal inclinations
IPC: G01C19/44
Filed: 1938-09-06
Abstract: 502,462. Gyroscopic apparatus. JAEGER - AVIATION. Sept. 6, 1938, Nos. 26086 and 26087. Convention dates, Oct. 20, 1937 and April 8, 1938. [Class 97 (iii)] In a gyroscopic artificial horizon for aircraft the connection between the inner gimbal 1 and the horizon bar 2, pivoted at 3 on the outer gimbal 10, is such that the movements of the bar 2 are not reversed after the aircraft has made a turn through 180‹ about a transverse axis followed by a turn through 180‹ about the longitudinal axis. As shown in Fig. 9, the transverse gimbal trunnion Z rigidly carries two arcuate permanent magnets 14, 15, forming two diametrically opposite air gaps 7c, 7d, with which co-operate a soft iron mass 17 on the bar 2. When the aircraft is making a half loop into the inverted position, the horizon bar 2 is first lowered by the interaction of the soft iron mass 17 with the air gap 7c, then jumps instantaneously from the lowermost to the uppermost position on the dial 6 as the mass 17 jumps from the air gap 7c to the air gap 7d, and is finally lowered to the central position by the air gap 7d, thus simulating the appearance of the actual horizon. If the aircraft then makes a half roll into'the erect position the bar 2 still gives correct indications since it is driven, as it was before the manoeuvre, by that air gap, i.e. 7d, which lies between the axes 3 and Z. The air gap lying further from the pivot 3 may be screened by a fixed plate. In a mechanically operated modification, Fig. 15, the spindle 32 of a roller 31, which is guided in a diametrical slot 7k on a disc 30 carried by the trunnion Z, engages a slot 33 in the bar 2, a light spring 34 being provided to retain the roller 32 at that end of the slot 7k which is nearer the pivot 3.
Patent GB-1347771-A (GB)
Title: Safety barrier
IPC: E01D19/10
Filed: 1971-04-19
Abstract: 1347771 Vehicle crash barriers FRANCE ARMED FORCES MINISTER OF EQUIPMENT 19 April 1971 [3 April 1970] 26125/71 Heading E1G A crash barrier for a road or bridge comprises a heavy rail 7 of rigidly connected elongated elements supported above the road surface 17 by supports 10, 10' resting slidably thereon so that on impact, the supports 10 10' slide transversely over the road surface to allow deformation of the rail, the barrier having a weight of 450-750 Kg per metre length. Longitudinal displacement is prevented by blocks 12, and lateral displacement may be limited by blocks 19, Fig. 6. As shown the rail comprises a series of prefabricated concrete lengths 13 each spanning a pair of supports 10 and connected end to end by prestressing cable(s) 16 and optionally concrete or neoprene jointing elements. An auxiliary metal 'slide rail' 9 may be mounted on shock absorbers 8 on the prestressed concrete rail assembly. In modifications the concrete rail is replaced by a metal box-section rail filled with heavy material.
Patent GB-445535-A (GB)
Title: Improvements in or relating to cash registers, accounting machines and similar machines
IPC: G06C11/08
Filed: 1934-09-12
Abstract: 445,535. Cash registers. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A. -(Assignees of Nelson, G.; 3731, Maple Grove Avenue, Dayton, Ohio, U.S.A.) Sept. 12, 1934, No. 26180. Convention date, March 10. [Class 106 (i)] Perforating items and totals.-In a cash register or similar accounting-machine capable of operating through a variable number of cycles according to the kind of machine operation and having means for perforating amounts or totals on record cards fed automatically and successively to said means, the card feed is disabled during certain cycles. The invention is described as applied to a cash register of the kind forming the subject-matter of Specification 8119/15, [Class 106 (i)], and provided with means to feed a card, Fig. 10, from a stack 159, Fig. 4, perforate it in accordance with the item or total and eject it into a reservoir 287, Fig. 6. The invention consists in the provision of means to disable the card feed during the first cycle of a total-taking operation. At the beginning of an adding operation, a card is fed from the bottom the stack by the right-hand excursion of a of slide 203 driven from cams 218, 219 on a shaft 151 through a lever 215, a link 209 and arms 208, 206 on a shaft 207. The connection between the link 209 and lever 215 comprises a T-shaped slot 211 formed in the link and embracing a stud 212 on the lever. In adding operations, the stud is situated as shown in the upper arm of the slot and the cams are consequently operable to feed a card at each cycle. However, upon the adjustment of the total-taking control lever out of adding position, the usual rock-shaft that is rocked at this time acts through a link 220 to raise the link 209 to a position in which the horizontal arm of the slot is in alignment with the stud. The cams are thus rendered ineffective to shift the feed slide 203 during the first cycle. Later in the cycle, when the rock-shaft receives its second movement, the link is raised to full extent to engage the. lower arm of the slot with the stud and thus render the card feed effective during the second cycle. The card passed from the stack is fed by pairs of rollers 232 ... 237 to perforating position between plates 132, 133 where it is arrested by bars 273 controlled by a cam 274 on shaft 151. The plates are now raised, together with the upper feed rollers, to press the card against punches 123, those punches that are restrained by projections 129 on racks 126 being effective to perforate the card. Upon the return of the plates, the arrested bars are withdrawn and the card is fed by the feed rollers to a pair of ejector rollers 238, 239 and thence to the reservoir. The racks 126 are set by the amount and transaction differentials, the total control lever and dating slides 178.
Patent GB-445537-A (GB)
Title: Methods or process of producing protective gases for use in the heat-treatment of metals
IPC: C21D1/76
Filed: 1934-09-13
Abstract: 445,537. Furnace atmospheres. BIRMINGHAM ELECTRIC FURNACES, Ltd., and LOBLEY, A. G., Birlec Works, Tyburn Road, Erdington, and HARTLEY, H. J., 9, Gresham Road, Hall Green, both in Birmingham. Sept. 13, 1934, No. 26259. Addition to 429,402. Drawings to Specification. [Class 51 (ii)] Sulphur-free combustion products for use as an atmosphere in metal heating furnaces are produced by burning coal gas, or other hydrocarbon-containing fuel with insufficient air for complete combustion, cooling the products for the partial removal of water vapour, and subjecting them to treatment with hydrated iron oxide for the removal of sulphuretted hydrogen, as described in the parent Specification, and subsequently reheating the gas to convert any remaining sulphur compounds (chiefly carbon oxy-sulphide) into sulphuretted hydrogen, which is removed by further treatment with hydrated iron oxide. The reheating may be effected in the presence of a nickel or similar catalyst to a temperature of 350 to 500‹ C., or without a catalyst, and with the assistance of externally-applied heat to a temperature of 800‹ C., and air may be mixed with the gas before reheating. The gas may be dried after the reheating step, and final traces of water vapour may be removed by cooling or the use of activated alumina. The reheating may be effected within the chamber in which the gas is initially burnt. Specification 421,540 is referred to.
Patent GB-1154454-A (GB)
Title: New Anthranilic Acid Derivatives
Inventor: BUSACCA ROSARIO
IPC: C07C233/12
Filed: 1966-06-13
Abstract: 1,154,454. N - (O - Acetylsalicyloyl) - anthranilic acid. PHARMIREX ANSTALT. 13 June, 1967 [13 June, 1966], No. 26286/66. Heading C2C. Novel N - (O acetylsalicyloyl) - anthranilic acid and non-toxic, pharmaceutically acceptable salts thereof are prepared by condensation of acetylsalicyloyl chloride with anthranilic acid in the presence of an acid-binding agent, followed optionally by conversion of the product to a non-toxic, pharmaceutically acceptable salt thereof. O-Acetylsalicyloyl chloride is prepared by treatment of acetylsalicylic acid with thionyl chloride. Pharmaceutical compositions having antipyretic, analgesic and anti-inflammatory effects comprise, as active ingredient, N-(O-acetylsalicyloyl)-anthranilic acid or a non-toxic, pharmaceutically acceptable salt thereof, in association with a pharmaceutically acceptable carrier, and may be administered orally, rectally or parenterally.
Patent GB-751833-A (GB)
Title: Improvements in or relating to electric supply and control systems for pulse operated discharge tubes
IPC: H05G1/50
Filed: 1954-09-10
Abstract: 751,833. Supply systems for X-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 10, 1954 [Sept. 15, 1953], No. 26306/54. Class 38 (4). To reduce the effect of stray capacity upon the operation of the biasing circuit 8, 9 connected between the grid and cathode of a gridcontrolled X-ray tube 4, arranged for pulse operation by the voltage appearing across a rectifier 10 fed through a condenser 2 from a mains transformer 1, the biasing circuit is also connected in series with the rectifier 3 and condenser 2. Further voltage-multiplying stages, comprising rectifiers and condensers, may be disposed between the transformer and condenser 2. A condenser 17, in the other output lead of transformer 1, may replace condenser 2; alternatively, both condensers 2 and 17 may be employed.
Patent GB-410390-A (GB)
Title: Process for recovering tin, lead, antimony or bismuth or alloys thereof from substances which contain same and which may also contain more volatile metals, such as arsenic, cadmium and zinc
IPC: C22B5/00
Filed: 1933-09-26
Abstract: In a modification of the process described in the parent Specification, the reduction is carried out with the exclusion of oxidizing gases such as air or combustion gases in an externally heated furnace sealed in a gaslight manner and constructed of alloys having a high resistance to heat, more particularly heat-resistant steels, or chromium-nickel or chromium-nickel-cobalt alloys, the reduced metal being tapped off from the furnace in a molten condition whilst the volatilized metal is condensed outside the furnace.
Patent GB-374735-A (GB)
Title: Improvements in anti-halation layers for photographic plates and films
IPC: G03C1/76
Filed: 1931-09-23
Abstract: The compound <PICT:0374735/IV/1> is obtained by condensing p-cresol dialcohol with p-cresolcarboxylic acid in the presence of concentrated hydrochloric acid.
Patent GB-1430649-A (GB)
Title: Disc brakes
IPC: F16D55/00
Filed: 1973-06-05
Abstract: 1430649 Spot-type disc brakes GIRLING Ltd 23 May 1974 [5 June 1973] 26702/73 Heading F2E In a disc brake assembly of the kind including first and second fluid-pressure-operated actuators for applying friction pads to the inner and outer opposite faces of first and second axiallyspaced rotatable discs respectively and in which both innner faces are adjacent to each other and the outer face of one disc is remote from the other disc, the first and second actuators are both disposed on a chordal plane common to both discs, and the actuators are both located adjacent to the outer face of one of the discs. As shown, the inboard disc 1 is braked by adjacent friction pads 7, that pad adjacent the inboard face of disc 1 being applied by a pair of pistons 11 forming with their cylinder bores 12 a pair of first actuators, on fluid pressurization of the latter, and the other pad being applied by a pressure plate 9 linked to a pressure plate 8, in which bores 12 are provided, by two draw bars 10, each of which is floatingly guided in an inboard part of an arm 5 of a stationary member 3. The outboard disc 2 is braked by a friction pad 7 adjacent a pressure plate 14 which is pulled by drawbars 15 attached to pistons 16, and by a friction pad 7 adjacent a pressure plate 13 which is pushed by extensions 18 of cylinders 17, each extension partly housing a drawbar; these drawbars are each floatingly guided in an outboard part of an arm 5. The pistons 16, cylinders 17 and drawbars 15 form a pair of second actuators. The cylinders 17 are supported and guided as the pads wear, (Fig. 3, shows worn pads), by spaced lugs 19, Fig. 1, each engaging a pin (not shown) extending from the stationary member 3. Arms 5 are interconnected by two circumferential portions 6. Drag on the friction pads is taken directly by the stationary member in which the pads are guided for axial movement.
Patent GB-873833-A (GB)
Title: Improvements in or relating to optical beam-splitting arrangements
Inventor: CHEETHAM WILLIAM ROGER
IPC: G03B33/12
Filed: 1956-08-31
Abstract: 873,833. Optical beam splitting devices. PYE Ltd. Dec. 2, 1957 [Aug. 31, 1956], No. 26711/56. Class 97(1) An optical beam splitting arrangement comprises a block of transparent material consisting of at least two prisms in surface contact, there being provided at the or at least one of the interfaces between the prisms a layer of dichroic material capable of reflecting light of one colour while transmitting light of another colour or colours, said block being capable of splitting white light incident thereupon into two or more different colour components, a lens of adjustable focus for focusing the incident light beam so that irrespective of the distance of the object or source from the arrangement the light from said lens passes through the block as a parallel beam, and an exit lens for focusing each component of the split beam and set at infinity focus. As shown in Fig. 3 of the Provisional Specification, an afocal adaptor 9 is placed in front of the transparent block made up of four prisms with dichroic interfaces so that parallel light rays incident on the block are split up into the three primary colours and are respectively focused by exit lenses 5, 6 and 7, each set at infinity focus. Interference filters 10, 11 and 12 may be provided to limit the band width of the split beam incident on the separate exit lenses and a quarter-wave plate 13 may be used to circularly polarize the incoming light to avoid polarization changes across the dichroic layers. Marginal masking of the three exit faces of the block may be provided. One form of afocal adaptor 9 is shown in Fig. 3 of the Complete Specification and comprises a fixed lens 19 and a lens 18 which is carried in a front mount 21 externally screwthreaded to engage a tube 23, rotation of which in a housing 20 results in axial movement of the lens 18. The adaptor is mounted in a housing 25 containing the transparent prism block 26 held between retaining members 27 and 28 of which the member 28 is slidable upon a base plate 31 for adjusting the position of the prism block 26 as a whole. The exit lenses may be mounted in a turret containing lenses of different focal lengths and a continuously variable angle of view can be obtained by using a lens attachment to the afocal adaptor of the zoom type. The beam splitting arrangement may be employed in a colour television camera having three pick-up tubes. Specification 759,063 is referred to.
Patent GB-742209-A (GB)
Title: Transistor relay devices
IPC: H04L25/24
Filed: 1953-09-29
Abstract: 742,209. Code telegraphy. TELETYPE CORPORATION. Sept. 29, 1953 [Jan. 22, 1953], No. 26717/53. Class 40 (3). [Also in Group XL (c)] In a telegraph relay 'circuit D.C. signals applied over line 33, Fig. 3, saturate reactor 23 and cause the transistor 10 to oscillate (see Group XL (c)). The increase in collector current causes a D.C. signal to be fed out over lead 29 (Fig. 5, not shown). In a modification (Fig. 6, not shown), tone signals fed in over a transformer are converted to D.C. by rectifiers before being applied to the transistor circuit. Specification 694,021, [Group XL (c)], is referred to.
Patent GB-1030817-A (GB)
Title: Internal combustion engines
IPC: F02F1/24
Filed: 1964-06-29
Abstract: 1,030,817. Cylinders. FORD MOTOR CO. Ltd. June 29, 1964 [July 11, 1963], No. 26755/64. Heading F1B. A spark plug 28 is positioned with its spark gap in the clearance space above a flat surface 24 surrounding a combustion chamber 23.
Patent GB-656213-A (GB)
Title: Improvements relating to illuminated signs
IPC: G09F9/46
Filed: 1949-08-18
Abstract: 656,213. Signs. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., SHEPPARD, E. A., and STEVENS, S. A. Aug. 18, 1949, No. 26758/48. [Classes 3(i) and 3(ii)] An edge-illuminated sign comprises a number of different superposed indications on one or more transparent plates each indication being delineated by one or more sets of concentric grooves, the light source for illuminating each set being situated substantially at the common centre thereof. In one form, Fig. 7, the sign comprises a plurality of superposed transparent sheets a each of which carries a different symbol on its back or face. The symbols are formed of concentric V-section grooves, Fig. 9, the included angles between the sides being approximately 50 degrees and the side furthest away from the source of illumination being perpendicular to the face of the transparent sheet. The sheets have a plurality of aligned holes in which lamps are positioned and each sheet is selectively illuminated by either one or two lamps. The sheets which are not to be illuminated by a given lamp or lamps are masked by an opaque tube l, Fig. 7, in each lamp hole f; the grooves on each plate are arranged concentrically with respect to the lamp or lamps for illuminating them; when two lamps are used the grooves are in two sets. The illuminated edge of the plate may be at an angle to the surface of the plate as shown in Fig. 7 or may be perpendicular; in the latter case the lamp filament is arranged in the plane of the plate. In a modification, Fig. 2, more than one indication is carried by a single-plate, the grooves for the indications being arranged to cross at an angle as shown; up to four indications on one plate are described as possible. The grooves are arranged concentrically with respect to the lamp or lamps which illuminate them; thus lamps f1 and f1<SP>1</SP>, Fig. 2, illuminate grooves p and p<SP>1</SP> respectively of one indication and lamps f2 and f2' illuminate grooves q and q<SP>1</SP> of the second indication. Opaque screens may be positioned in slots cut into the plate between the lamps to prevent unwanted reflections. Indications in a plurality of colours are.possible by illuminating sets of grooves in different colours simultaneously by means of colour filters, each indication being composed of more than one set of grooves either on one or more plates. The application to a changeable railway sign consisting of a red bar on a white circular background is described, the bar having two alternative positions, i.e. either horizontal or at a 45 degrees angle; four sets of grooves are used either on one or two plates, two sets being illuminated simultaneously, one white and the other red, the change in the bar position being accomplished by illuminating the other sets of grooves instead of the first two sets.
Patent GB-1218171-A (GB)
Title: Apparatus for compensating for eddy currents produced in parts of high electrical conductivity on vehicles or the like by their movement in the earth's field
IPC: G01R33/025
Filed: 1961-07-24
Abstract: 1,218,171. Modifying magnetic field. SIEMENS-SCHUCKERTWERKE A.G. 24 July, 1961 [23 July, 1960], No. 26801/61. Heading B7S. In a vehicle or the like provided with compensating windings for compensating for the effect of the vehicle on the earth's magnetic field, a transformer is provided for measuring variations in the current in the compensating windings and applying them, after suitable amplification, to further compensating windings surrounding parts of good electrical conductivity in which eddy currents are induced by movement in the earth's field, the current in the further windings being such as to compensate for the field produced by the eddy currents. In the circuit shown a detector 1 gives an output proportional to the magnitude of the earth's field, and this output is applied as a signal voltage through a pre-amplifier 2 and control unit 3 to a power amplifier 4 which supplies current to the compensating windings 5. This current passes through the primary winding of a transformer 6, the secondary winding of which is connected to a transformer unit 7. The unit 7 consists of a field winding 8, a winding 9 having a negative feedback action, and a measuring element 10 which is preferably a Hall generator. The voltage supplied by the Hall generator 10 is amplified in a pre-amplifier 11 and applied to phase-sensitive rectifier elements 12 and through a variable gain amplifier 13 to a power amplifier 14. The power amplifier 14 feeds compensating windings 15 which surround a plurality of small parts or one large part of material of good electrical conductivity. The current flowing through windings 15 passes through a resistance 16, the voltage across which is applied to the negative feedback winding 9 through a resistance 17. To each field variation and consequently to each current variation in the field compensating channels, i.e. in the primary windings of the transformer 6, there is a particular corresponding current in the windings 15 determined mainly by the voltage across resistance 16 and by the resistance of winding 9 and resistance 17. Three similar circuits are provided, one for each co-ordinate axis.
Patent GB-616489-A (GB)
Title: Improvements in or relating to electron discharge tubes of the velocity-modulation type
IPC: H01J25/12
Filed: 1946-09-06
Abstract: 616,489. Velocity-modulated tubes. PHILIPS LAMPS Ltd. Sept. 6, 1946, No. 26856. Convention date, April 6, 1943. [Class 39 (i)] In a velocity-modulated tube the electron beam entering the control system is constituted by a mixture of groups of electrons originating from at least two electron sources, the electrons from one source having a velocity different from those from any other source. In Fig. 1 electrons from a thermionic cathode 2 pass through a grid 3 which emits secondary electrons ; the spacing of the grid is such that the two beams are of approximately equal intensity, but owing to the potential between 2 and 3 the beams' have different velocities since the secondary electrons are emitted with substantially zero velocity. The beams enter the control system, 6 and 7, where they are velocity modulated and pass down the drift tube 8 to the catcher system 9 and 10. The drift tube is of such a length that the density maxima of the two beams when they reach 10 are half a cycle out of phase so that the catcher is excited at double the frequency of the buncher. In a modification, Fig. 3 (not shown), the drift tube 8 is shorter so that the first catcher system is excited at the fundamental frequency; external feedback is arranged between this catcher and the buncher so that self oscillation is maintained. Beyond this catcher is a further catcher excited at double the frequency as in Fig. 1. In a further modification, Fig. 5, the grid spacing is wider so that the number of secondary electrons is relatively small. Electrode 19 is at a potential intermediate between 2 and 3 so that the secondary beam is reflected back through 6 and 7 and maintains oscillations in the manner of a reflex tube. The primary beam passes through 19 and excites the catcher 9, 10. The second beam need not be generated by secondary emission; two thermionic cathodes may be used.