baber/WOPTO huggingface dataset:
Patent GB-1496305-A (GB)
Title: Sintered silicon nitride body and a method of producing the same
IPC: C04B35/584
Filed: 1976-04-07
Abstract: 1496305 Silicon nitride NIPPON GAISHI KK 7 April 1976 [7 April 1975 18 April 1975] 14063/76 Heading CIA [Also in Division C7] A sintered silicon nitride body comprises silicon nitride, and not more than 10% by weight in total of at least two metal oxides selected from beryllium oxide, magnesium oxide and strontium oxide, each of the metal oxides being present in an amount of not more than 5% by weight. Preferably the total amount of the metal oxides is 0À2 to 10%, especially 1-7% the amount of each of the metal oxides being 0À1 to 5%, especially 0À5 to 3À5%. Beryllium oxide, together with magnesium oxide and/or strontium oxide, is preferred. Not more than 10% by weight of at least one rare earth metal oxide may also be present, preferably 1-10% thereof and especially 1-5%. Rare earth metal oxides specified are those of cerium, yttrium, and lanthanum, (which are preferred), praseodymium, neodymium, samarium, gadolinium, dysprosium, holmium and ebium. The silicon nitride powder may have an α-phase content of not less than 30% by weight, especially not less than 80% by weight, a purity of not less than 99% and a grain size of not more than 10 Ám. The sintered body is made by moulding the mixture into a shaped body and sintering at 1600 to 1900‹ C. in nitrogen or an inert gas atmosphere. Sintered bodies so made show high density and mechanical strength.
Patent GB-478427-A (GB)
Title: Improvements in and relating to devices for accelerating aircraft for launching purposes
IPC: B64F1/06
Filed: 1936-05-18
Abstract: 478,427. Catapult for launching aircraft. MITCHELL, C. C. May 18, 1936, No. 14074. [Class 4] A device for accelerating aircraft for launching comprises at least one cylinder or duct having a longitudinally extending slot or opening in the wall thereof, in which cylinder or duct fluid pressure can be generated or introduced, a piston carrying a pin or platelike member projecting through the slot or opening and a tlexible belt or the like located within the cylinder or duct and by which the opening can be sealed. In one form, Fig. 1, a long cylinder a closed by end covers b, b is provided with a narrow slot c, Fig. 3. A piston comprises end elements d interconnected by girders e, elements d being provided with packing devices. Between girders e are mounted pulleys f, f <1>, f<2> pulley f <1> being at a lower level than the others. A flexible belt or packing strip g passes through covers b at each end of the cylinder and is tensioned by spring means. Belt g extends along slot c to pulley f, passes beneath pulley f which is peripherally grooved, then over pulley f<2> thence along the slot to the other end of the cylinder. The sides of the slot are tapered slightly and the belt is of vee-section. A bracket h secured to girders e carries a fm i passing through the slot and attached to means for communicating movement of the piston to the aircraft or acting directly on the craft. The piston carries rollers j, j j<1> at each end. Fluid pressure is admitted to cylinder a by a port k. An air exhaust port l, a transfer duct for effecting braking and a safety valve bl are provided at the remote end of the cylinder. Valves may be provided in port l and duct m to enable the piston to perform the return stroke under fluid pressure. Alternatively, the device may be made capable of launching an aircraft in either direction by duplication of the ports and ducts. Where the piston is to be purely single acting, the leading pulley is removed and the leading end of the piston omitted or cut away to permit it to pass over the belt lying on the bottom of the cylinder or duct. In a modification, Figs. 5 and 6, two cylinders are arranged side by side and the pistons are interconnected by members n attached to pins i, i<1> so as to constitute a launching carriage. The pistons are provided with two grooved pulleys p, p in place of the single pulley f<1> of Fig. 1, and have additional rollers q, q<1> bearing on the cylinder wall. Means may be provided for introducing fluid under pressure at an intermediate point during the working stroke. The cylinder may be other than circular in cross-section.
Patent GB-162554-A (GB)
Title: Improvements relating to the removal of sulphur from gases
IPC: C10K1/12
Filed: 1920-05-21
Abstract: 162,554. Rambush, N. E. May 21, 1920. Purifier waste, revivifying.-In revivifying a sulphide sludge or suspension from gas-purifiers by subjecting the suspension to the action of a current of air &c., the amount of air allowed to escape from the apparatus is reduced as much as possible with the object of avoiding loss of sulphur. The air may be circulated through a tower a in a closed path by means of a pump d, fresh air being supplied when required by means of valves g, h, i; the suspension is circulated by a pump c. In a modification, a chimney is used to draw air very slowly through the tower, the draught being controlled by a valve in the chimney, and accelerated if necessary by arranging the suspension inlet pipe within the air-supply pipe to act as an injector.
Patent GB-1025226-A (GB)
Title: Means for locking rapidly on their support the interchangeable cams of a sewing machine
IPC: D05B19/00
Filed: 1963-04-09
Abstract: 1,025,226. Circlips; securing cams on shafts. NECCKI S.p.A. April 9, 1963 [May 16, 1962], No. 14125/63. Headings F2H and F2U. [Also in Divisions D1 and E2] Cams 17 are releasably mounted by means comprising a bush 1 having axial keys 7, 8 and a slot 2 engaging a tongue 4 on the cam driving shaft 3 of a sewing machine. A ring 10 rotatably mounted on a cylindrical part 9 of the support is retained thereon by a wire circlip 11 and has keys 13, 14 and an outer surface 10 corresponding to the keys 7, 8 and surface 6 of the support. When the ring is turned to align keys 7, 13 and 8, 14, the cams may be applied to or removed from the support. When the keys are misaligned the cams are retained between the keys 13, 14 and the shoulder 5.
Patent GB-847023-A (GB)
Title: Improvements in or relating to line scanning circuits in television receivers
IPC: H03K6/04
Filed: 1958-05-03
Abstract: 847,023. Valve saw tooth wave circuits. COLE Ltd., E. K., and BAERSELMAN, G. A. April 30, 1959 [May 3, 1958], No. 14181/58. Class 40(6). In a line scanning circuit of the type in which a C2 capacitor is connected in series with the scanning coils in order to adapt the waveform to wide angle tubes, an inductor L is connected across the capacitor to form a resonant circuit so as to reduce line amplitude variations due to irregularities in synchronization caused by interference.
Patent GB-119526-A (GB)
Title: Improved Means for the Consumption of Smoke.
Inventor: LEWIS THOMAS
Filed: 1918-03-27
Abstract: 119,526. Lewis, T. March 27, 1918. Smoke, consuming.-A slide having a series of Bunsen burners is adapted to be inserted in and withdrawn from recesses or guide-grooves in the smoke flue. As shown, the slide consists of a hollow ring c having perforations or nozzles in its inner face for the Bunsen flames. One or more inner rings may be fitted as indicated by dotted lines.
Patent GB-1534479-A (GB)
Title: Laser system and method
IPC: G02F1/35
Filed: 1977-04-05
Abstract: 1534479 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 5 April 1977 [29 Sept 1976] 14275/77 Heading G2F A (tunable) CW laser beam of frequency W 1 , normally transmitted through a metal vapour two photon absorption cell (absorption frequency # 12 ), is substantially extinguished for the duration of each pulse from a (dye) mode locked laser of frequency W 2  = # 12 -W 1  also directed at the cell. The quartum levels shown are for a rubidium cell but other alkali and alkaline earth metals may be used either alone, or in combination and with an inert gas.
Patent GB-458228-A (GB)
Title: Improved method of and apparatus for dividing rolled material into equal sub-lengths
IPC: B23D33/10
Filed: 1936-05-20
Abstract: 458,228. Metal-sheet feeds. LOEHR, W., 80, Riedleachstrasse, Neuwied, Rasselstein, Rhine, Germany. May 20, 1936, No. 14317. Convention date, May 21, 1935. [Class 83 (iv)] [See also Group VIII] A method and apparatus for dividing sheets into a number of equal sublengths involve the use of a pair of indices, one on each side of the shears, said indices being first set relatively to one another to obtain a relative setting and then moved at speeds corresponding to this relative setting by change speed gearing. As shown, an index 8 in the form of a stop is arranged at the rear of the shears 2, 3 and an index 6 in front thereof. The stop 8 is moved by a screw 9, and the index 6 by a screw 7, both screws being capable of being driven from a motor 11 and change speed gearing 12. Assuming that it is desired to subdivide a sheet into four equal parts, the stop 8 is adjusted to one unit of length away from the shears in one direction, and the index 6 adjusted in the opposite direction to three units. By using a three to one change speed gearing the relative distances of the stop and index will be maintained and if the sheet is maintained pressed against the stop until the stop and index span the sheet, the apparatus is ready set for cutting the sheet into four equal parts.
Patent GB-248232-A (GB)
Title: Improvements in apparatus for removing solid carbonaceous material from oil-crackingapparatus
Filed: 1925-06-02
Abstract: 248,232. Huff, L. C. June 2, 1925. Hydrocarbons, cracking. - Carbon is removed from the reaction vessels of oil-cracking apparatus by enclosing in the vessel a flexible metal chain or cable which, on withdrawal breaks up the carbon deposits. As shown in Fig. 1, the reaction vessel 14 receives oil heated in a pipe still 1 and discharges vapours to a dephlegmator 9 down which fresh oil passes from a pipe 10 and the reflux from which passes to the still 1. Within the reaction vessel 14, a flexible chain or cable 24 is tied to hooks 23 on the interior of the vessel and to supporting wires 26 passing across the vessel to form a series of flat helices. The free end 27 of the cable rests on the plate 16 closing the outlet. When carbon is to be withdrawn, the cable is pulled through the outlet opening, the ties being successively broken. A second cable may be tied inside a cage formed of rods supported vertically in the chamber and adapted to be withdrawn through the outlet after the cable has been withdrawn so as to form a central vertical opening through the bed of carbon. Alternatively, the cable may be tied alternately to hooks at the top and bottom of the chamber so as to lie in vertical lengths along the side walls.
Patent GB-328807-A (GB)
Title: Improvements in and relating to sickles, scythes, and the like
IPC: A01D1/04
Filed: 1929-05-08
Abstract: 328,807. Simpson, D. May 8, 1929. Scythes and sickles. - A scythe, sickle, or grass hook is provided with a blade holder in which a series of independent blades such as the razor blades known under the registered trade marks Gillette, Ever- Ready, can be clamped. The blade holder 4, ribbed for strengthening purposes has a stamped metal handle 1 to which a wood hand grip 2 is secured. The holder is tapped to receive screws which also pass through a clamping-strip 6 between which and the holder the blades are held, projections being pressed up in the holder to suit the peculiarities of the blades used. The holder is secured to the handle by a pivot 3, its angularity being adjusted by a bolt and wing nut 11 passing through a hole in the handle and through the desired one of a series of holes 12 in the blade holder. In a modification the bolt with the wing nut passes through an arcuate guiding slot in the holder and may be adjusted by a lateral screw provided with an adjusting-nut A projection 13 is provided at the end of the holder to engage a similar projection 14 on the handle when the blade is closed down.
Patent GB-1034126-A (GB)
Title: Improvements in or relating to haymaking machines
IPC: A01D78/10
Filed: 1963-04-10
Abstract: 1,034,126. Haymaking machines. MASCHINENFABRIK FAHR A.G. April 10, 1963 [April 13, 1962], No. 14420/63. Heading A1F. A haymaking machine, having at least one pair of transversely-spaced tined rotors 5 mounted on a cross-member 1, driven in opposite directions about vertical axes, and each supported by a wheel 7 mounted within the rotor, each rotor having- arms on which are mounted downwardly-extending tines, is characterized in that the supporting wheel 7 drives at least one of the rotors and is arranged eccentrically of the axis of rotation thereof on an axle 9 extending transversly of the direction of travel. As shown in Fig. 1, a rotor 5 is mounted on a sleeve 6 freely rotatable on the vertical axle 10 and is driven by frictional engagement between the wheel 7 and an integral disc 8, the rate and direction of rotation being respectively adjustable by movement of the wheel 7 along the axle 9 (position 7<SP>1</SP>) and by rotation of the axle 9 through 180 degrees about the axle 10 (position 7<SP>111</SP>). The upper end of the sleeve 6 enters a gearbox and drives, through bevel-gears 2, a telescopic shaft 12 connected to the other rotor, the gearboxes and rotors being adjustable along the cross-member 1. In Fig. 3, the sleeve 16 carrying the rotor 5 is driven by bevel gearing 15 from the wheel 7 which is movable into the dotted position to reverse the drive.
Patent GB-497550-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B9/12
Filed: 1938-05-14
Abstract: 497,550. Lenses. ZEISS IKON ART.- GES. May 14, 1938, No. 14488. Convention date, July 13, 1937. [Class 97 (i)] An objective of wide aperture consists of four air-spaced members as shown, of which the second is a meniscus convex towards the object and has at least one cemented surface of divergent action, and the remaining three members are convergent. The third member has a convex outer surface on the image side; and may contain at least one cemented surface of collecting action. Data are given for one example of aperture F /1.5.
Patent GB-1544839-A (GB)
Title: Phthalocyanine formulations which are stabilized against recrystallisation and against change of modification
IPC: C09B67/22
Filed: 1976-04-09
Abstract: Phthalocyanine preparations stabilised against recrystallisation and change in modification, which preparations give colorations having good gloss, contain (a) a phthalocyanine as pigment and (b) 2 to 40% by weight, relative to (a) of a salt or a homogeneous mixture of ( alpha ), one or more phthalocyanine derivatives containing 2 to 5 <IMAGE> basic groups, in which R<1> represents H, alkyl having 1 to 20 C atoms, phenyl, methyl-, methoxy-, ethoxy- or chlorine-substituted phenyl, -(C2H4-NH)zH or -(C3H6-NH)zH, R<2> represents H, alkyl having 1 to 6 C atoms or cycloalkyl having 6 to 8 C atoms, and Z represents an integer between 1 and 3 and ( beta ) an aliphatic sulphonic acid having 1 to 20 C atoms, an aromatic sulphonic acid carrying one or two alkyls each having 1 to 20 C atoms and, if desired, a hydroxyl, a hydroxypropoxy or dihydroxypropoxy group as substituents, or mixtures thereof, the ratio of  alpha ): beta ) being 1:1 to 1:5 mol, as stabilising agent. The preparation can also contain one or more organic liquids or solutions of resins in organic liquids. The pigment preparations produce colorations of high colour strength and clean hue in paints, coatings, printing inks and plastics.
Patent GB-1139309-A (GB)
Title: Improvement in or relating to gantry crane supports
IPC: B66C19/02
Filed: 1966-04-01
Abstract: 1,139,309. Erecting overhead cranes. SKODA, OBOROVY PODNIK. 1 April, 1966 [3 April, 1965], No. 14507/66 Heading B8B. A gantry crane has L-shaped legs 1 which are hinged to the base of the gantry 6 at 4 so that when the gantry is lifted the legs swing about pivots 4 until plates 3 abut a cross-piece 5. When the legs have reached this position tierods are secured between the bottoms of the legs. All the parts of the crane are assembled on the gantry whilst it is on the ground and it is raised by winches supported by either two or four masts.
Patent GB-1029017-A (GB)
Title: Multiple coating apparatus
Inventor: CAMERON EWEN
IPC: B05C5/02
Filed: 1964-04-08
Abstract: 1,029,017. Web coating apparatus. ILFORD Ltd. April 6, 1965 [April 8, 1964], No. 14522/64. Addition to 957,743. Heading D1L. In applying thin layers of coating liquids to a travelling web the latter is caused to travel in a path which at the position where the coating is applied has a vertical component of motion and coating liquids are supplied to an applicator 1 located at the coating position, the applicator comprising top and bottom jaws 2 and 3 sloped so as to establish in operation a body 9 of coating liquid between the applicator and the web 12, the upper and lower edges of the applicator being spaced apart and constructed so that the body of liquid has a vertical depth between 12 mm and 40 mm whereby the pressure in the liquid just below the upper jaw is less than the pressure just above it and, enclosed between the jaws of the applicator, two or more ducts 5, 7 for coating liquid, and which extend substantially across the width of the web. The ducts may be formed by channels 6 and 8 between a member 4 and the jaws 3 and 2 respectively and different liquids can be pumped along said channels. By replacing the member 4 by two or more such members three or more channels for feeding liquid may be formed.
Patent GB-1176784-A (GB)
Title: Novel Heterocyclic Iminoethers, Polymers obtained therefrom and Processes for the Preparation Thereof
IPC: C07D263/16
Filed: 1968-03-26
Abstract: 1,176,784. Substituted oxazoline derivatives. ALLIED CHEMICAL CORP. 26 March, 1968 [17 April, 1967; 12 May, 1967], No. 14540/68. Heading C2C. [Also in Division C3] Compounds of the general formula where L represents a radical RCOO(CH 2 ) n - or ROOC-(CH 2 ) m - where R is hydrocarbon, n is 1 to 15 and n is 0 or 1 to 15, are prepared by cyclodehydrohalogenating an N-(#-haloethyl) amide of formula where X is Cl or Br. R is preferably alkyl or aralkyl and the cyclodehydrohalogenation is preferably effected by reacting the amide with anhydrous sodium carbonate at a temperature high enough to recover the desired oxazoline by distillation. The compounds of the invention may be polymerized or copolymerized. N - (# - Chloroethyl) - 6 - acetoxyhexanamide is prepared by reacting 6-acetoxyhexanoic acid with thionyl chloride and reacting the resulting 6-acetoxyhexanoyl chloride with ethylenimine. N - (# - Chloroethyl) - 2 - acetoxy acetamide was prepared in a similar manner, and N - (# - chloroethyl) - 3 - carbomethoxy propionamide was prepared by reacting succinic anhydride with methanol, treating the resulting methyl hydrogen succinate with thionyl chloride and reacting the resulting #-carbomethoxy propionyl chloride with ethylenimine.
Patent GB-772164-A (GB)
Title: Improvements in or relating to vehicle hydropneumatic suspension systems
IPC: B60G21/02
Filed: 1955-05-20
Abstract: 772,164. Spring suspensions: preventing lateral canting: equalizing load on wheels: adjusting body height. SOC. ANON. A. CITROEN. May 20, 1955 [Feb. 23, 1955], No. 14558/55. Class 108(2). A hydro-pneumatic suspension system for maintaining the underbody of a vehicle at a uniform height from the ground comprises, the suspension of a first pair of wheels 3, 3 having a swing arm 1 and a suspension cylinder 7 fixed to the underbody for each wheel, the cylinder being provided with a piston 5 connected to the swing arm, pipe means 11 connecting the suspension cylinders, a hydro-pneumatic suspension chamber 13 connected to the pipe means, a suspension member 8 linking the swing arms, a height corrector 16 controlling the hydro-pneumatic suspension chamber 13 through a connection 15 at an intermediate point of the suspension member, the suspension of a second pair of wheels having a swing arm 22, a link 20 attached to the swing arm and a suspension cylinder 14 fixed to the underbody for each wheel respectively, pipe means 53 connecting the suspension cylinders of the second pair of wheels to the hydro-pneumatic suspension chamber 13, each of the suspension cylinders of the second pair of wheels being provided with a piston 18 attached to the free end of the link 20, a double-acting corrector cylinder 23 fixed to the underbody for each wheel of the second pair, the corrector cylinder 23 being provided with a piston 43 connected to a point 50 intermediate the ends of the link 20, pipe means 24, 25 connecting the corrector cylinders, a suspension member 28, a distributer 26 controlling the corrector cylinders 23 connected with the midpoint of the suspension member of the second pair of wheels and pipe means 40 connecting the distributer of the second pair of wheels and the height corrector 16 of the first pair of wheels with a reservoir 29 of hydraulic liquid. As shown, the suspension members 8 and 28 which actuate respectively, the height corrector 16 and the distributer 26, are torsion bars. The arrangement is such that in the unloaded condition of the vehicle, the distributer 26 closes the feed to cylinders 23. Rotation of the torsion bar 28 in either direction however, admits pressure liquid to one or the other ends of the cylinders 23 to vary the effective connection of the devices 14, 18, 19 with the arms 22. The suspension chamber 13, the ends of which are also connected to the height corrector 16, consists of end portions 33, 34 separated by a gas-filled section 36. Specification 754,386 is referred to.
Patent GB-1013485-A (GB)
Title: Improvements in or relating to apparatus for use in the automatic recognition of symbols
IPC: G06V30/10
Filed: 1964-04-09
Abstract: 1,013,485. Automatic character reading. SIEMENS & HALSKE A.G. April 9, 1964 [April 11, 1963], No. 14617/64. Heading G4R. In character reading apparatus a vertical straight line feature is detected and compared in length with the horizontal projection of the character, i.e. the full height of the character to compensate for different sizes of font. Vertical scans are made through a character as in Fig. 1 and the corresponding signals appear on line n, Fig. 2, for application to a counting device BZ. In this a control counter Zp10 determines whether a series of black signals lies in the correct range to constitute a vertical straight line feature. The pulses are also'counted by a counter VZ which is reset if counter Zp10 finds that the series is too long or too short. At the end of the series the counter Zp10 passes a signal to mark one of the stages of counter VZ to indicate the length of the line. At the end of the scan this marking is transferred via store ZS to a backward counter RZ. The input signals on line n are also passed with clock pulses to a one-scan register R. The output of this store is connected to the backward counter so that the same scan that was counted by counter VZ and produced a value entered in counter RZ now causes this counter to count back towards zero. During this process gate UGs is opened to pass the signals to a second store RS, the gate being closed when the counter RZ reaches zero. The register RS therefore contains only signals relating to a vertical straight line feature. A feed-back loop on this register allows it to retain an horizontal projection of this feature. In circuit VSZ it is compared in length and position with a series of signals on line Ze which constitute the projection of the whole character derived as described in Specification 979,178. For this purpose both signals are applied to differentiators AZ and AS which produce start pulses. If these are simultaneous gate GA sets trigger SA. In the same way differentiators EZ and ES produce end pulses and if these are simultaneous, and trigger SA is set, gate GS gives an output at S. This indicates that the straight line feature detected has the same length as the full height of the character. If other shape elements are detected they are applied on line if to set trigger Sfs the output of which enables gates GSl, GSr to produce a signal that the straight line feature is on the right or left of the character. Provision may be made for passing feature signals which are not exactly co-terminous with the character height signals. Stores may be provided for more than one straight line feature.