baber/WOPTO huggingface dataset:
Patent GB-735570-A (GB)
Title: Improvements relating to combustion equipment of gas-turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23R3/18
Filed: 1952-06-16
Abstract: 735,570. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. Sept. 11, 1953 [June 16, 1952], No. 15165/52. Class 51 (1). In a gas turbine engine comprising reheat combustion equipment downstream of a turbine stage, the equipment includes a flame stabilizer so arranged that in operation a surface area thereof acquires a temperature which is substantially higher than that of another part of the stabilizer and substantially higher than that of the exhaust gas leaving the turbine. The reheat equipment may be used in the jet pipe of a jet propulsion engine or between turbine stages in the case of an engine with a multi-stage turbine. Pilot fuel injectors 16, 17, Fig. 2, are fed with fuel from a supporting pipe 18, and main fuel injectors spraying fuel upstream are in the form of a ring manifold 19 fed with fuel from a further pipe 20. Pilot injector 16 is housed in a conical baffle 21 disposed with its concavity facing downstream. A flame stabilizing ring 22, Figs. 2 and 3, of V-section comprises an insert or inserts 23 of ceramic material overlapping the edges of the ring and' conveniently free for expansion relative to the ring. The ceramic inserts, being poor thermal conductors, become heated to elevated temperature by the combustion of fuel. Alternatively or additionally, the edges of the ring 22 may be provided with elongated fingers in a manner ensuring poor thermal conduction from the fingers to the ring itself. Electrical heating may be provided. In a modification, the flame stabilizer comprises a number of conical or dished baffles 24, Fig. 5, each having an annular ceramic insert or, as shown, a number of inserts 25 forming an annulus which preferably overlaps the free edge of the bafHe. As in the previous construction, projecting fingers or heating elements may be provided. Fuel is injected at a location upstream of the baffles, or in an upstream direction from a downstream location.
Patent GB-144315-A (GB)
Title: Improvements in and relating to means for driving the spindles of spinning frames
IPC: D01H1/242
Filed: 1920-06-04
Abstract: 144,315. Lyth, J. J., and Lowe, J. Aug. 24, 1917, [Convention date]. Spindle-driving apparatus; stop-apparatus, non- automatic; spindle apparatus.-The spindles of spinning-frames are driven by helical or other toothed gearing from a shaft comprising sections coupled tdgether and driven by motors, the shaft and gearing revolving on ball bearings in an oil bath comprising a series of covered troughs coupled together. Spiral gears 24 provided with tapered bores 25, Fig. 4, which receive the ends of the spindles are driven from a shaft 13 mounted on ball bearings in a trough 11, Fig. 2. The shaft 13 is driven by motors disposed at each end thereof or by a single motor disposed at an intermediate point, so that, if it is necessary to stop and uncouple one of the sections of the shaft, the entire shaft, with the exception of the section removed, may remain in operation in the former arrangement, and at least one half of the shaft in the latter arrangement. The gears 27 are secured to the shaft 13 by a split tapered bush and a nut, and the sections of the shaft are coupled together by a similar bush 28a, Fig. 6, the bore of which is polygonal to engage similarly shaped parts on the ends of the sections, the part on one section being longer than the bush so that, when disconnecting, the bush can be slid thereon to free the adjacent section. The gears 24 are carried in ball bearings in rails 17, 18, which are made in sections of approximately the same length as that of the trough sections, and the joints of the upper rail are staggered relatively to the joints of the trough sections. Each section of the trough is provided with a cover 22 and with internal flanges 23, which prevent the Bow of oil to one end of the trough if the machine is not properly levelled. The spindles may be individually disconnected from the gears 24 and braked against a rail 34 by means of levers 41 which engage collars 39 thereon. The taper of the ends of the spindles is such that the spindles are gripped sufficiently tightly in the gears 24 by reason of their weight. During normal running, the levers are maintained out of contact with the collars 39 by springs 43. The troughs are charged with oil so that the lower parts of the gears 27 rotate therein, and the shaft rotates in such direction that the gears travel upwardly adjacent the pinions and splash the oil thereagainst. To check the upward movement of the oil around the spindles the lower ends of the pinions may be plugged. The upper bearings are spaced from the cover so that any oil which works up the spindle is thrown off beneath the cover, and the cover is set into tha trough to prevent creeping of the oil through the joint.
Patent GB-498035-A (GB)
Title: Frequency changing systems
IPC: H01F38/04
Filed: 1937-06-01
Abstract: 498,035. Frequency changing. STOCKER, C. P. June 1, 1937, No. 15233. Convention date, June 18, 1936. [Class 38 (ii)] In a frequency changer comprising a plurality of inductively-coupled oscillatory circuits 10, 11, 12 associated with a saturable magnetic core 13, A.C. from a source 14 is supplied to the circuit 10, and the circuits 11, 12 are adjusted so that the sum of the natural frequencies equals an integer times the frequency of the source 14. A load circuit 35, 36 which may require a lower frequency than that of the supply 14 is coupled through a stabilizing transformer 32 to the circuit 12. The transformer primary may be tapped and connected to the condenser 31 of the oscillatory circuit 11 in the manner shown so as to operate as a step-up transformer to increase the effective capacitative reactance of the condenser. A D.C. exciting winding 44 fed from a rectifier 47 or battery may be provided on the core 13 to render the arrangement self-starting under no load. To render the arrangement self-starting under load, a slow-acting relay 52 is arranged temporarily to short-circuit the inductance 30 of the oscillatory circuit 12 at starting. Alternatively, a relay may be arranged in the load circuit to hold off the load until the arrangement starts to oscillate, Fig. 2 (not shown). In a modification, Fig. 4, the range of frequencies obtainable in the circuits 11, 12 is increased by causing the circuit 10 to excite two cores 56, 57 through windings 58, 59. The arrangement is such that opposing fluxes flow in adjacent limbs of the cores, both of which are embraced by windings included in the circuits 11, 12. Thus, generation of voltages of the input frequency in the circuits 11. 12 is prevented. This arrangement is rendered selfstarting by temporarily short-circuiting winding 58 by a relay 68 which removes the shortcircuit when oscillatory current begins to flow in the output circuit 12. In another arrangement, Fig. 7, a stabilizing winding 74 is connected across the condenser 25 of the oscillatory circuit 11 to enable the stabilizing transformer to be dispensed with. The Specification as open to inspection under Sect. 91 comprises also a further modification, Fig. 6 (Cancelled) (not shown), in which the circuit 11 is dispensed with, and the circuit 10 is tuned to a frequency differing from that of the source 14 so as to perform the function of the circuit 11. This subject-matter does not appear in the Specification as accepted.
Patent GB-453758-A (GB)
Title: Improvements in supplementary devices for binocular rangefinders
IPC: H01K1/28
Filed: 1936-06-02
Abstract: 453,758. Rangefinders. ZEISS, C., Carl-Zeiss-Strasse, Jena, Germany. June 2, 1936, No. 15313. Convention date, June 7, 1935. [Class 97 (i)] In a binocular rangefinder, in order to detect differences of height of the two images and thus to facilitate correction of these differences by means provided in the rangefinder, there is provided a supplementary device enabling both images to be viewed through a single eyepiece, the said device having at least one reflecting system for deflecting a pencil of imaging rays, an optical system combining the pencils of imaging rays of the two eyepieces, and an adjustable optical system for varying the height direction of one of the pencils. Figs. 1 and 2 show one form of the invention as applied to a stereoscopic rangefinder having pentagonal prisms 3 with roof-edged reflecting surfaces, objectives 4, reflecting-prisms 6 bearing measuring-marks 7, eyepieces 8, and a measuring device comprising a pair of prisms 10 which can be rotated in opposite directions by a head 9 bearing a scale 11. The instrument also contains means, consisting of prisms 14 rotatable in opposite directions by a head 13, for neutralizing differences of height of the two images relatively to their respective marks 7. The device according to the invention consists of a casing 15 which can be attached to the rangefinder and has windows 16 corresponding to the eyepieces 8, a reflecting prism 17 being mounted behind one window and a block 23 with a semi-reflecting surface 24 behind the other, so that all the imaging rays pass through a single viewing-aperture 25. The mount 18 of the prism 17 can be rotated about a pin 19 by a screw 22. To detect and correct errors of height of the images, the screw 22 is adjusted until the two measuring marks 7 have the same height when viewed through the aperture 25. Then if the images as seen through this aperture do not coincide as to height the prisms 14 are rotated until such coincidence is obtained. Other forms of the optical elements within the casing 15 are described; for example in Fig. 3, these elements comprise at one end a pentagonal prism 28 with a roof-edge, and at the other end a block 29 as above described. Between the prism 28 and block 29 is a telescope 32 of unit magnification which can be rotated about a pin 33 to bring the mark images to the same height. The casing 15 may form a permanent part of the rangefinder instead of being separate as above described, in which case it is provided with a pair of eyepieces and the optical elements within it are so mounted that they can be turned into their position of use to direct all the rays into one eyepiece, or out of this position so that both eyepieces are used in the ordinary way. A construction is also described for applying the invention to a binocular rangefinder in which measurements are effected by giving the same virtual distance to two stereoscopic images produced by two rangefinder systems of different bases, such an instrument not having measuring marks.
Patent GB-1285235-A (GB)
Title: Method and apparatus for estimating workpiece gage in a reducing mill
IPC: G01B21/08
Filed: 1970-04-01
Abstract: 1285235 Rolling GENERAL ELECTRIC CO 1 April 1970 [28 April 1969] 15366/70 Heading B3M  A method of estimating the gauge G 1  of a thin, hard workpiece comprises measuring the roll separating forces produced by a workpiece 68 passing between work rolls 60 and 62 by a load cell 74. The load cell produces an analog signal which is converted to a digital signal by a converter 76. This digital signal is passed to memory units 78 and 80 which respond to a measured force input by producing signals representing a gauge G 2 , defined by the intersection of the measured force curve and an appropriate workpiece deformation curve, and a gauge G 3 , defined by the intersection of the measured force curve and an appropriate mill stretch curve. The signals representing the gauges G 2  and G 3  are fed to a reversing counter 82 whose output is the digital equivalent of G 2 - G 3 , i.e. the range of uncertainty. The magnitude of the signal representing G 2 -G 3  is modified in a multiplier circuit 84 by multiplying the quantity G 2 -G 3  by the quantity where D and S are the predicted draft and predicted mill stretch respectively on the reducing pass and K is the relative probability of error in predicting both draft and stretch. The modified signal from the circuit 84 is added to the signal representing the gauge G 3  in an adder circuit 86 whose output, i.e. is a signal representing the estimated gauge G 1 . In another embodiment when the intersection of the measured force curve and the deformation curve produces a gauge G 2  which is greater than the starting gauge G 6 , the memory unit 78 is replaced with a memory unit containing data on known stretch and deformation characteristics. Thus the signal representing the estimated gauge G 1  becomes where G 5  is the interesction of the appropriate mill stretch curve and an appropriate workpiece deformation curve. The two embodiments may be further refined by multiplying the estimated error by the quantity
Patent GB-333879-A (GB)
Title: Improvements in the manufacture of articles from thermoplastic materials
IPC: B29C48/06
Filed: 1929-05-16
Abstract: 333,879. Smith, W. S., Garnett, H. J., and Dean, J. N. May 16, 1929. Extrusion machines. - A method of avoiding strain in the applied gutta-percha or like thermoplastic insulation of a submarine cable or like electrical conductor, consists in extruding the gutta-percha under such pressure and so controlling the rate of travel of the conductor that the guttapercha extruded upon the conductor is of a greater cross-section than that of the die (i.e. the part where the extrusion passage is most constricted). As shown in Fig. 1, the conductor A passes through the guide D and the nozzle 2 which opens into an enlarged portion 3 which shapes the gutta-percha as it expands after leaving the constricted portion. In a modified form, the die walls are parallel but the guide D is elongated and projects into the die forming an annular constriction. Examples of suitable pressures, rates of haul-off, and expansions of the gutta-percha are given.
Patent GB-551904-A (GB)
Title: Improvements in and relating to blower impellers and methods of manufacturing same
IPC: F04D29/28
Filed: 1941-12-01
Abstract: 551,904. Making dies. FULLEMANN, J. Dec. 1, 1941, No. 15433. Convention date, Dec. 17,1940. [Class 83 (ii)] [Also in Group XXVI] The two halves of a centrifugal pump impeller are made by drop forging, the die being shaped by a rotary cutter 22 having a peripheral 'cutting edge and a number of radial cutting edges.
Patent GB-624203-A (GB)
Title: Improvements connected with bags
IPC: B65D33/02
Filed: 1947-06-12
Abstract: 624,203. Collapsable bags. PETERSEN AKTIESELSKAPET, P. J. June 12, 1947, No. 15466. Convention date, June 29, 1946. [Class 133] In a bag of the type comprising flexible end portions 3, 4, bottom portion 5 and flexible side portions 1, 2, characterized by stiffening members adapted to impart rigidity to the bag in the extended condition, stiffening members 9, e.g. of pasteboard, are hingedly secured, by means of suitable flexible material, within said bag, and may be folded together so as to permit the bag being collapsed and rolled up, by folding in the direction of the arrow 11 on to the stiffening member 6. The members 6 and 9 are then turned about the flexible hinged connection 7 in the direction of the arrow 12, whereupon the bag can be rolled up. In an alternative construction the members 9 may be hingedly secured to their respective end portions or to the bottom portion as distinct from being hinged to the stiffening member 6.
Patent GB-637296-A (GB)
Title: Improvements in circuits for supplying the deflecting systems of cathode ray oscillographs
IPC: G01S7/62
Filed: 1946-05-22
Abstract: 637,296. Cathode-ray oscillographs. SOC FRANCAISE RADIO-ELECTRIQUE. May 22, 1946, No. 15502. Convention date, June 11, 1942. [Class 37] [Also in Groups XXXVIII and XL (c)] A normal depth sounding system, in which supersonic pulses 47 are emitted at 45, Fig. 3, reflected from the ocean bed 48, received at 46 and displayed on a cathode-ray tube 37, has an additional cathode-ray tube 51 on which the forms of the successive echoes due, e.g. to shoals of fish 62 and the ocean bed 48 are superposed and displayed. The cathode-ray tube 37 is controlled to trace a series of parallel lines, each corresponding to a depth of e.g. 100 metres, the echoes appearing as vertical excursions from these lines. The cathode-ray tube 51 is fed with a time base initiated by the echo and having a duration and amplitude dependent on the duration of the echo ; as shown in Fig. 1, the echo is applied at 28 to produce a negative signal 15 on the grid of valve 14 to block it, while a positive signal 12 is applied over resistance 10 to the grid of the cathode-ray tube to switch on the cathode-ray beam ; the blocking of valve 14 allows condenser 19 to charge over pentode 26 to provide the time base for the horizontal deflecting plates of the cathode-ray tube, this time base terminating at the end of the echo signal when valve 14 becomes conductive ; the echo is also applied at 9 to the vertical deflecting plates of the cathode-ray tube so that the various echoes are superposed as shown at 51 in Fig. 3
Patent GB-1189299-A (GB)
Title: Combination Padlock
IPC: E05B37/02
Filed: 1967-04-05
Abstract: 1,189,299. Combination padlocks. COATS & CLARK Inc. 5 April, 1967 [20 May, 1966], No. 15525/67. Heading E2A. A padlock has a two-part casing in which is mounted a shaft extension of the shackle 17 carrying numbered wheels 27 normally rotatable with sleeves 24 having single projections 32 which cooperate with grooves 22 in the casing to permit rightward movement (as shown) of the shackle only when the wheels are properly set. When the lock has been opened, a slide 38 may be depressed by means of a finger-piece 41 to permit a further movement of thte shackle and sleeves 24 to disengage projections 30 on the sleeves from internal grooves of the wheels so that the latter may be set to a new combination. The wheels have lateral projections 33 which cooperate with detent springs (not shown). One part of the casing has rivet-like projections 19 by which it is secured to the other part. In another embodiment, Fig. 6 (not shown), each numbered wheel has a series of internal recesses for cooperation with a corresponding projection on the shaft and one through groove to permit the passage of that projection when the wheel is correctly set.
Patent GB-915327-A (GB)
Title: Apparatus for purification and treatment of feed water or other liquids
IPC: C02F5/02
Filed: 1960-05-03
Abstract: 915,327. Filters. ATKINSON, H. J. May, 3, 1960, No. 15552/60. Class 46. Liquid (e.g. boiler feed water) to be treated and purified is admitted at 21 and flows between the left hand half of an inner cylindrical member 30 (containing treatment material) and an outer cylindrical casing 10. The member and casing are spaced from each other by two ribs 31 on the inner member and by two ribs at right angles thereto, also on the inner member, one of them, 44, extending from bottom to top. The two latter ribs are joined, beneath the inner member, by a transverse partition 48, The other rib extends from the bottom nearly to the level of the top of the inner member 30. The liquid deposits dirt in the region to the left of the partition 48 and then flows through holes 50 to the inside of the member 30 on the left of an inner partition 40. It flows through an aperture 42 in the partition after contact with water glass and flows through more such material down the other side. Thereafter it passes through holes 60, deposits dirt, if any, to the right of partition 48, and flows out at 25. If dirt accumulates to obstruct holes 50 or 60, the liquid by-passes the inner member 30 'by flowing over the top of the incomplete rib above-mentioned.
Patent GB-419514-A (GB)
Title: Improvements relating to cases or devices for the carrying of postage stamps and thelike
IPC: B42F5/02
Filed: 1934-05-24
Abstract: 419,514. Stamp cases. RUCH, W. MULLER-, 4, Cacilienstrasse, Berne, Switzerland. May 24, 1934, No. 15567. Convention date, July 1, 1933. [Class 18.] A postage-stamp case comprises a number of transparent celluloid leaves united at one edge to form a book, the leaves having projecting tags e, f, g, which do not overlap. When the celluloid is electrified by friction the stamps adhere to it.
Patent GB-353588-A (GB)
Title: Improvement in spark plugs
IPC: H01T13/39
Filed: 1930-05-21
Abstract: 353,588. Sparking- plugs. HURLEY, R. J., Dobbs Ferry, New York, U.S.A. May 21, 1930, No. 15598. Convention date, March 13. [Class 7 (iv).] Gas tightness is obtained by driving the central conductor into the grooved upper portion 8 of a copper or like sleeve 6, or by forcing a ball into the ungrooved upper portion. The shank 12 is of steel, and the tip 14 of nickel manganese.
Patent GB-105308-A (GB)
Title: Improvements in Engine Jacket and Cylinder Construction.
Inventor: CHRISTOFFERSON SILAS
IPC: F02F1/16
Filed: 1916-11-01
Abstract: 105,308. Christofferson, S. Nov. 1, 1916. Cylinders, construction of and cooling.-The water jacket is cast in one with the admission and exhaust passages 4, 5 and is united to the cylinder barrels 1 by screwed bushes 9, which do not form the valve seatings, and by brushes 20 which form the ignition-plug sockets. The lower end of the jacket is kept water-tight by india-rubber rings in grooves with inclined faces 26. The cylinder barrels are pressed from high-carbon steel and are thicker at the parts 2, 2<1>. A bracket 14 carries the valve levers, which are enclosed in a casing 16.
Patent GB-912107-A (GB)
Title: Improved battery clamp
IPC: H01M50/262
Filed: 1961-05-01
Abstract: 912,107. Clamp fastenings. FORD MOTOR CO. Ltd. (Ford Motor Co.). May 1, 1961, No. 15633/61. Class 44. A clamp element for a vehicle battery comprises a member 17 with a loop 19 at each end to receive holding down bolts and cross members 21 secured near each end of the member 17 and adapted to engage the top of the battery. As shown the cross members 21 are welded to the underside of the member 17 and each is arched so that only the top corners of the battery are engaged. Each is provided with a section at each end which engages the vertical corner of the battery.
Patent GB-1378256-A (GB)
Title: Barometer capsule and method of manufacture
IPC: G12B1/04
Filed: 1973-04-02
Abstract: 1378256 Pressure gauges; making evacuated capsules SPRINGFIELD INSTRUMENT CO Inc 2 April 1973 [27 June 1972] 15660/73 Heading B3A [Also in Division G1] A capsule comprises a first capsule member 10, having a motion-transmitting nipple 16 and a peripheral upwardly and outwardly extending flange 12, a second capsule member 18, having a central hole 32, Fig. 2 (not shown), a peripheral flange 20 and a vacuum hole 34, and a capsule stud 24 and the arrangement is such that the stud 24 is inserted by portion 28 into the hole 32 and the flange 20 is inserted into the flange 12 and a sealant is then applied to the flanges 20, 12 and a flange 30, formed on the stud 24, to form a vacuum-tight connection between the members 10, 18 and stud 24. In an alternative embodiment, Fig. 7, the hole 34 is replaced by a passage 50a, 50b and 50c with stud 24<SP>1</SP> which is finally filled with a solder. The sealant is cured by heating to approx. 120‹ C. for 15 to 20 mins.
Patent GB-1074110-A (GB)
Title: Traffic signal device
IPC: E01F9/012
Filed: 1966-04-07
Abstract: 1,074,110. Traffic markers. HELLER INDUSTRIES Inc. April 7, 1966 [April 22, 1965], No. 15672/66. Heading E1G. A traffic marker comprises a hollow vertical section, preferably conical, integral with a hollow flanged frusto-conical base, the hollow base being open towards the interior of the marker to receive heavy flowable material to weight the base.