baber/WOPTO huggingface dataset:
Patent GB-898509-A (GB)
Title: Improvements in or relating to thrust indicators for use on jet propelled aircraft
Inventor: YOUNG PIERRE HENRY JOHN
IPC: G07C3/00
Filed: 1959-12-01
Abstract: 898,509. Measuring electrically. BRISTOL SIDDELEY ENGINES Ltd. Nov. 30, 1960 [Dec. 1, 1959], No. 40798/59. Class 40 (1). In an apparatus for estimating the gross thrust of an aircraft jet propulsion unit a signal is derived which is a function of (KPr-Pa), where K is a constant dependent on the jet nozzle geometry, Pr is the static pressure on the upstream side of the jet propulsion nozzle and Pa is the ambient pressure. This signal may be multiplied by the same function of the area of the jet nozzle at its outlet plane (An) if this area is adjustable. In addition, in order to obtain a signal which varies less with changed altitude and forward speed, the gross thrust signal may be divided by the appropriate function of the impact pressure, Pi, due to the forward speed of the aircraft. In the preferred embodiment a force proportional to (KPr-Pa) is applied to a lever 13 by the arrangements of bellows 15 and 16, bellows 15 being evacuated, and bellows 16 being connected at 18 to the upstream side of the jet propulsion nozzle 11. Bellows 16 is K/K - 1  times the size of bellows 15. The bellows 21 and 23 provide a rebalancing force on the lever 13 proportional to the impact pressure Pi as sensed by the pitot tube 19 and communicated to bellows 21, bellows 23 being evacuated. The lever is kept in balance by sensing deflections of the lever 13 by switches 32 and 33 which energize motor 29 and turn lead screw 28 to move the pivot 26 and hence the point of application of the rebalancing force derived from Pi to the position for equilibrium of the lever 13. It is shown that the position of the pivot point 26 then bears a square root relation with the KPr - Pa  desired function of The position of Pi the pivot 26 is signalled by potentiometer 34 to a multiplier 36 whose other input is a signal derived from potentiometer 35 coupled to the nozzle mechanism so as to give an output proportional to the square root of the nozzle area. The indicator 37 may then be suitably calibrated.
Patent GB-1202534-A (GB)
Title: Improvements relating to magnetically sensitive arrangements
Inventor: LEAT ANDREW FRANCIS VINCENT
IPC: G01R33/04
Filed: 1966-11-19
Abstract: 1,202,534. Measuring magnetic field strength. ELLIOTT BROS. (LONDON) Ltd. Nov.14, 1967 [Nov.19, 1966], No.41214/69. Divided out of 1,202,533. Heading G1N. Electrical output signals g 1 , g 2 , g 3  from three magnetometers arranged to sense three mutually perpendicular components of a magnetic field are corrected for stray fields by subtracting from each output signal a respective signal h 1 , h 2 , h 3  dependent on the effects of any stray magnetic fields and then multiplying the resulting signals by respective factors p 11 , p 12 , &c. dependent on the distorting effects of any magnetic material and adding the resulting signals in the manner indicated in Fig.2 to obtain three signals f 1 , f 2  , f 3  representing the output signals of the magnetometers which would be obtained in the absence of stray fields and magnetic material. The signals h 1 , h 2 , h 3  may be dependent on an electrical input applied to electrical equipment producing the stray fields. The magnetometers may be fluxgate magnetometers of the type described in Specification 1, 202, 533.
Patent GB-1486796-A (GB)
Title: Time switch
IPC: H03K17/292
Filed: 1974-09-25
Abstract: 1486796 Timer IWATANI SANGYO KK [trading as IWATANI & CO Ltd] 25 Sept 1974 41740/74 Heading H3T A timer switch has a gate controlled semiconductor device whose gate is connected to a capacitor 19 through a diode 15 and resistor 10 in series, which device can be inhibited in dependence, on the voltage across the capacitor and has a transistor 16 connected with its current controlled path between a supply terminal 1 and the capacitor 19 to charge the capacitor with the output of the semi-conductor device connected to the control electrode of the transistor so that the capacitor is charged while the device conducts. A resistor 8 may be made adjustable (Figs. 2, 24, not shown) to vary the gate potential required to trigger the device. The semi-conductor device may have a resistor 7 at its anode connected to an input terminal (27, Fig. 3, not shown) and a switching means (29) to open or short circuit the terminal to earth to permit or prevent the device from conducting. Preferably the semi-conductor device is a programmable unijunction transistor (PUT) 9 and there may be a diode 18 and a resistor 17 between the charging transistor 16 and the capacitor 19. The means to goven the charging may be a second transistor 4 connected at its base to the device and at its output to the control electrode of the first transistor. The second transistor 4 can drive a relay 2 with a protective diode 3. In use, on initially switching on the capacitor 19 is uncharged so the gate of the PUT is lower than its anode and turn on of the PUT is immediate. If the supply is interrupted then the gate is held at a positive level by the capacitor and subsequent restoration of the supply will not turn the PUT on until the capacitor has discharged via diode 15 and resistor 11 to a level less than that of the anode. This time delay after an interruption in the supply serves to protect air-conditioning equipment (not shown).
Patent GB-1029694-A (GB)
Title: Improvements in or relating to ionization manometers for determining the vapour density of a substance evaporating in vacuo
IPC: G01M3/20
Filed: 1963-10-23
Abstract: <PICT:1029694/C6-C7/1> Material in a recess 2 of a tungsten heating ribbon 1 supported by water-cooled terminals 3 is vaporized on to a plate 4 heated by a coil 5 in an envelope 6.  A screen 7 may be interposed when the plate 4 is to be outgassed or to allow a constant evaporation rate to be established befoe condensation takes place.  A small quantity of a further material, e.g. a dope, may be deposited from a cylindrical vaporizer 26, Fig. 2 (not shown) provided with a heating coil 27.  The vapour density is measured as the difference between the total density and the residual gas density by an ionization manometer (see Division H1).
Patent GB-1438105-A (GB)
IPC: E21B47/10
Filed: 1972-09-06
Abstract: 1438105 Determination of proportions of phases in a multi-phase fluid SCHLUMBERGER INLAND SERVICES Inc 5 Sept 1973 [6 Sept 1972] 42019/72 Heading G1B Apparatus for determining the volumetric proportions of the phases of a multi-phase fluid flowing in a production well comprises elongated body member 18 for suspension in the well, the body member having a portion 20 of reduced cross section, sleeve member 21 slidably mounted on the body member and movable between a first position in which it co-operates with portion 20 of the body member to define an enclosed sampling chamber (72), Fig. 2, (not shown) and a second position as shown in which the chamber is open, actuating means 27, 26, 33, 36, 37, 42 for moving the sleeve member 21 between the first and second positions, a sample of the well fluid being trapped in the sampling chamber when the sleeve is in its first position and allowed to settle into its constituent phases, sensing means 68 for producing output signals representative of a characteristic of each phase, for example its density, and displacement means for producing relative movement between the sensing means and successive portions of the separated fluid. In the apparatus shown, the sleeve member is longitudinally movable by operation of motor 26 rotating lead screw 30 causing travel of nut 33 carrying sleeve 21. Nut 33 also carries rods 36 and spring-loaded piston 37. For movement of the sleeve member 21 and piston member 37 to their upper (second position), latch member 40 engages a groove 43 in the sleeve member. An indentation 45 on portion 20 co-operates with a cam surface on the latch member to release the latch from the sleeve member to allow downward travel of the sleeve member alone under the action of spring 49, when the sample chamber formed between the sleeve member and portion 20 traps a sample of the fluid. Motor 26 then moves nut 33 and piston 37 downwardly to force the sample through passage 64 and chamber 63 past sensing means 68 and back to the well past valve 67. In another embodiment, chamber 63 is omitted and a density sensing means is mounted on the underside of piston 37. This sensing means may have exposed electrical connections so that its short-circuiting indicates its entry into the water phase.
Patent GB-1096799-A (GB)
Title: Dust prevention device
Inventor: TOJO JUNNOSUKE
IPC: F16J15/40
Filed: 1965-10-04
Abstract: 1,096,799. Gaseous seals. HITACHI Ltd. Oct. 4, 1965, No. 42021/65. Heading F2B. Ingress of dust to a gear-box 4 housing gearing driven by a rotary shaft 5 journalled in a bearing 9 is prevented by supplying compressed-air through a feed pipe 16 to a chamber 14 surrounding the shafts and located between the bearing and the gear-box. The shaft 5 is driven by an electric motor and carries a pinion 3. The chamber 14 and two other air chambers 11, 15 are formed in a cover 7 secured to the motor housing and surrounding the shaft where it extends through the gear-box which is vented through a port 17. Compressed-air supplied to the chambers through pipe 16 enters the gear-box and maintains it at a pressure above atmospheric thereby preventing entry of dust.
Patent GB-1279691-A (GB)
Title: Bagging check-out counter
IPC: A47F9/04
Filed: 1969-08-25
Abstract: 1279691 A bagging check-out counter NIAGARA FRONTIER SERVICES Inc 25 Aug 1969 [26 Aug 1968] 42189/69 Heading B8C A bagging check-out counter comprises two lanes 28, 30, a bag opening and feeding means, Fig. 6, associated with each lane 28, 30 and operable to present an open bag 32 or 34 to conveyers 36, 38 and means for selectively operating each conveyer. The bag opening and feeding means is operable upon actuation of the conveyer operating means. The bag opening and feeding means includes a bag magazine 50 comprising a ram portion 52 and a pusher device 54 having a spring-loaded piston-rod 56 and a pusher plate 58 for engaging the rear side of a supply 60 of folded bags. Stop members 68 having laterally inwardly directed finger portions 72 engage the forwardly facing sides of the folded leading bag whilst a stop member 70 engages the rear wall of the leading bag through the thumb opening 62 thereof, and elements 82 grip the leading side edges of the leading bag. A bottom opening assembly 84 includes a head portion 86, having arms 88 and 90 for engaging over the edge 66 of the bag bottom 64, connected to a pivotally mounted cylinder and piston assembly 98, which is pivotally linked as at 106 to a cylinder and piston assembly 102. The cylinder and piston assemblies cause the head portion 86 to swing in a downwardly and outwardly directed arc. Upon activation of the bag opening and feeding means the elements 82 grip the leading side edges of the leading bag and move the leading wall relatively to the rear wall which is held stationary by the stop members 68 and 70. Simultaneously the bottom opening assembly 84 unfolds the bottom wall. At least one of the lanes is provided with a cover member (Figs. 3 and 4) mounted on a partition member such as 22 or 26 for movement between an out-of-the-way position along one of the partitions and a lane-covering position.
Patent GB-868298-A (GB)
Title: Improvements in or relating to furnace doors
IPC: F16J13/18
Filed: 1959-12-15
Abstract: 868,298. Furnace doors. YGNIS A.G. Dec. 15, 1959 [March 14, 1959], No. 42527/59. Class 51 (1). [Also in Group XXVI] A strip 1 mounted in a groove surrounding a furnace door to form a seal with a metal ridge 7 on the door frame, is pressed towards the ridge 7 by screws 5 engaging a presser bar 6 of such cross-section that it has a wedge-like action on the strip 1. The presser bar 6 may be round, or have a triangular or trapezoidal cross-section.
Patent GB-1006831-A (GB)
Title: Superconducting films
IPC: H01B3/00
Filed: 1961-11-29
Abstract: A superconducting film comprises two layers of superconductor separated by a third non-superconductor layer, the arrangement being such the two films always switch together between the superconducting and non-superconducting states; this provision of two films avoids non-uniform characteristics due to imperfections in the films.  Fig. 2 shows two thin films 16, 18 of superconductor material such as tin, lead or niobium separated by a thin non-superconducting film 20 of insulating material such as silicon monoxide, silicon dioxide or magnesium fluoride or of semiconducting material such as intrinsic germanium or of normal conducting material such <PICT:1006831/C6-C7/1> <PICT:1006831/C6-C7/2> <PICT:1006831/C6-C7/3> <PICT:1006831/C6-C7/4> <PICT:1006831/C6-C7/5> as copper, gold, indium or silver. The two outer layers may each be 1500<\>rA thick and the separating layer 1000<\>rA. The film may be used in a superconductor memory apparatus such as shown in Fig. 4 in which the film 44 is covered by a plurality of x "windings" 40 and y "windings" 42 each winding consisting of a strip of superconductor material which is insulated from the film.  A sense winding 46 extends under the film 44.  The whole arrangement may be produced by successively depositing through masks, as appropriate on to a glass substrate the following layer structure: (1) a lead conducting film; (2) two silicon monoxide insulating layers; (3) a lead film strip constituting the sense winding 46; (4) two silicon monoxide insulating layers; (5) the three layer construction for film 44; (6) two silicon monoxide insulating layers; (7) lead film strips constituting Y windings 42; (8) two silicon monoxide insulating layers; (9) lead film strips constituting the X windings 40; (10) a silicon monoxide insulating layer.  The double layers of silicon monoxide are produced by a first deposition in vacuo of a film 1500<\>rA thick, introducing nitrogen up to atmospheric pressure and then evacuating and depositing the second layer which is also 1500<\>rA thick.  This avoids pin holes in the insulating layers. Fig. 9 shows a cryatron arrangement comprising a film comprising superconducting layers 98 and 100 separated by an insulating film 102 of silicon monoxide.  The control conductor 106 of superconducting material is separated from the gate conductor by a pair of silicon monoxide layers 104 produced as described above.
Patent GB-1061456-A (GB)
Title: Oxymethylene polymer compositions
IPC: C08K5/20
Filed: 1965-10-13
Abstract: A moulding composition comprises a normally solid oxymethylene polymer in the form of particles smaller than 20 mesh size (U.S.A. Sieve Standard) and having uniformly dispersed therein from 0.001 to 0.25% of a solid organic lubricant.  The mixture may be blended at a high shear rate, e.g. on a commercial extruder and then extruded through an orifice and formed into pellets.  The polymer may be a homopolymer from formaldehyde or trioxane or a copolymer of trioxane with, e.g. ethylene oxide. The lubricant may be an amide wax, e.g. ethylene distearamide.  A stabilizer, e.g. 2,21-bis(4 - methyl - 6 - t. - butyl phenol) and cyanoguanidine may also be present.
Patent GB-1138031-A (GB)
Title: A shaft and surrounding bearing assembly incorporating a lubricating ring
IPC: F16N7/22
Filed: 1966-09-28
Abstract: 1,138,031. Lubricating. SIEMENS-SCHUCKERTWERKE A.G. 28 Sept., 1966 [30 Sept., 1965], No. 43442/66. Heading F2A. A shaft bearing 2, 3 is lubricated by a ring 6 surrounding and frictionally driven by the shaft 1 and partly immersed in lubricant, a guide means fast with the bearing extending around three sides of the ring so that deviation of the shaft from its usual position is resisted. In Fig. 2, rollers 9, 10 rotatable on spindles 15, 16 are secured by strips 11, 12 to lower shell 3 of the divided bearing. Each roller has end flanges which limit axial movement of the ring, and a central annular projection (17, Fig. 1, not shown) with a narrow circumferential surface which limits radial ring movement. Alternatively the rollers are positioned outside the ring and secured to housing 4.
Patent GB-1018702-A (GB)
Title: Method of producing steel with improved properties
IPC: C21D8/02
Filed: 1962-11-16
Abstract: Steel containing less than 0.2% of carbon and sufficient other alloying constituents to permit formation of a martensitic structure on quenching is austenitized, quenched, cold reduced in excess of 50% and tempered to produce the desired level of strength and ductility.
Patent GB-1263885-A (GB)
Title: Improvements in electric furnaces
Inventor: HENSENNE JOSEPH
IPC: F27B14/06
Filed: 1970-09-11
Abstract: 1,263,885. Induction furnaces. ELPHIAC. 11 Sept., 1970 [11 Sept., 1969], No. 43622/70. Heading F4B. An induction furnace is formed with a replaceable refractory concrete bottom 5 contained in a cup-shaped casing 6 which is removably secured to a cylindrical casing 4 surrounding the induction coil 1. After fixing of the bottom, a rammed clay lining 3 is provided.
Patent GB-1348434-A (GB)
Title: Printer
IPC: B41J19/14
Filed: 1971-09-20
Abstract: 1348434 Printers INTERNATIONAL BUSINESS MACHINES CORP 20 Sept 1971 [26 Oct 1970] 43652/71 Heading G4H A bidirectional serial printer has limit detecting means for overriding a control signal commanding movement in the direction leading beyond the limit. A "start I/O" instruction in a computer can specify printing, and address one of a plurality of printer control units which obtains commands, counts and characters to be printed from the computer on a cycle-steal basis, the computer containing two registers, one for holding the address in the computer's core storage of the next command (e.g. print) or count (this following the command in the storage and specifying, e.g. how many characters are or remain to be printed by this command, assuming it is a print command), and the other register for holding the memory address of the next character to be printed. During left-toright printing, the addresses are incremented and the count decremented in the computer as the printing proceeds, as appropriate. A character is printed by a column of print wires in successive horizontally-displaced positions to build up a matrix of dots, the wires being actuated by signals from a read-only store (in the printer control unit) addressed using the character identity and the output of a counter driven in correspondence with the movement of the column of print wires. A bit in the "start I/O" instruction specifies whether printing is to be bidirectional. It it is, and the printer element is not at the left margin (or at some reference point which might vary from line to line), the print element is driven from right-toleft with printing as before except that (a) the printer control unit first obtains the count from the computer memory and supplies it back to the computer where it is added to the address of the next character to be printed, and this address is decremented rather than incremented as printing proceeds so that the characters are supplied to the printer in the reverse order to compensate for the right-to-left printing, and (b) the output of the counter used in addressing the read-only store is supplied to the latter via logic which normally passes it unchanged but for right-to-left printing inverts the counting sequence so that each character is not printed back to front. With bidirectional printing, a signal normally causing return of the element to the left margin for the next line is suppressed, and a signal is sent to the computer simulating a signal normally sent on completion of such element return. The "bidirectional or not" bit in the "start I/O" instruction can be set under programme control in accordance with relative line lengths, tabbing or blank-characterprinting also being done as necessary, so that return to the margin can be avoided.
Patent GB-925878-A (GB)
IPC: G11C11/08
Filed: 1959-12-29
Abstract: 925,878. Multi-state magnetic storage elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 29, 1959 [Dec. 30, 1958], No. 44076/59. Class 40 (9). A magnetic core is magnetized one way in a belt II and the other way in a belt III, IV, by a figure-of-eight winding 5 and has eleven apertures 17, adjacent ones of which are linked by windings 7 to 16, arranged in an arc between the two belts, the inner region III and the outer region IV of the belt III, IV being separated by an arc of apertures 32 each one of which is associated with a limb between apertures 17, the arrangement being such that energization of a winding 7 to 16 deflects flux out of the region III into region IV of the belt III, IV, so that interrogation by windings 21 to 30 produces a large flux change wherever such a deflexion has taken place. The figure-of-eight winding may be replaced by two separate windings and a winding 6 may be provided to magnetize both belts in the same sense to frustrate the winding 5. Change of flux produced by interrogation windings 21 to 30 is detected by output windings 34 to 43. Interrogation is non-destructive as reversal of flux by one of the windings 21 to 30 forces the flux diverted from region IV back into region III and can restore the diverted flux to region IV if pulsed with opposite polarity. The windings 21 to 30 may be pulsed from separate sources or be pulsed from a common source over a switching network.
Patent GB-1036886-A (GB)
Title: Improvements relating to electromagnetic relays
Inventor: COOK SIDNEY ARTHUR
IPC: H01H51/28
Filed: 1961-12-11
Abstract: 1,036,886. Electromagnetic relays. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 4, 1962 [Dec. 11, 1961], No. 44261/61. Heading H2B. In a contact unit for use in a magneticallyoperated reed-type relay, a movable contact member 1 and stationary contact members 4, 5 have their actual contacts 1a, 1b, 4a and 5a sealed in a glass container 3 with their ends 1, 4 and 5 extending outwards for external connection. Magnetically actuated member 1, is permitted to move between contacts 4a and 5a by means of a flexible member 2, e.g. of molybdenum, sealed to the end of the glass container 3. The member 1 may be a capillary tube which acts as an exhaust tube for evacuating the container 3 and for filling with gas if desired.
Patent GB-1334564-A (GB)
Title: Method and apparatus for making wheel rims
IPC: B21D53/30
Filed: 1971-09-22
Abstract: 1334564 Making wheel rims; flanging LEIFELD & CO 22 Sept 1971 [28 Oct 1970] 44269/71 Headings B3A and B3E A method of making wheel rims comprises forming an upstanding clinch on a hoop blank 13 by rolling using first and second rolls 14, 15 to form a workpiece 16 followed by, rolling the workpiece using first and second pairs. 18, 19 of rolls to form a locking ring groove on the workpiece. The hoop blank is formed by bending precut steel strip stock and then welding the ends of the strip together. The blank is then moved by a conveyer to a first shaping machine, Fig. 1, which comprises a shaft 10 on which chucks 11, 12 are mounted within which the blank 13 is coaxially disposed, e.g. by means of a tailstock. The external chuck 12 extends further towards the rolls than the internal chuck so as to cooperate with the rolls 14, 15 during shaping of the clinch. After this shaping operation the workpiece 16 is ejected from between the chucks and conveyed to a second shaping machine, Fig. 2, simultaneously another hoop blank is advanced into the first shaping machine. The second shaping machine comprises a shaft 10 and chuck 17. The workpiece is positioned over the chuck and clamped by means of the clinch and a clamp 20. Pairs 18, 19 of rolls form a locking ring groove on the workpiece 16 at the opposite side to the clinch. An annular recess is formed in the chuck 17 against which the locking ring groove is shaped by the rollers which are advanced towards the workpiece upon rotation of the shaft 10. The pairs of rolls first indent a groove into the workpiece and then bend the edge thereof at right-angles to the workpiece axis. The rolls of both machines may be advanced by hydraulically powered movable supports and the machines positioned one behind the other to facilitate automatic operation under programmed control. Alternatively, the machine may be controlled manually.