baber/WOPTO huggingface dataset:
Patent GB-757576-A (GB)
Title: Improvements relating to heat exchangers or economisers
Inventor: WOOD DAVID HOWARD
IPC: F22D1/02
Filed: 1954-09-16
Abstract: 757,576. Tubular heat-exchangers. BOCK, M. DE. Sept. 16, 1954, No. 26860/54. Class 64(3). A heat exchanger such as an economiser comprises a bank of externally finned tubes 1 arranged in superimposed rows with the edges of the fins 2 of neighbouring tubes in line contact, individual fins being of rectilinear outline and having at least some of the corners cut-off to provide spaces 4 between adjoining fins for baffles 5 which extend through the spaces 4 and direct the external fluid over the tubes. The baffle members 5 may serve also as tube supports. The fins 2 may be integral with the tubes 1 (as shown), or finned sleeves may be fitted over the tubes.
Patent GB-822780-A (GB)
Title: Process for improving the properties of adducts formed from urea and straight-chain paraffin hydrocarbons or from thiourea and branched-chain paraffin hydrocarbons and naphthenes
IPC: C10G73/24
Filed: 1957-08-26
Abstract: The properties of adducts obtained from urea and straight-chain paraffin hydrocarbons or from thiourea and branched-chain paraffin hydrocarbons or naphthenes in the absence of activators are improved (i.e. the grain size is coarsened) by adding water to the adduct formed in an amount corresponding to at least 10% and at most 40% by weight, based on the amount of urea or thiourea initially added; in the presence of up to 10% by weight of water functioning as an activator, the amount of water subsequently added must bring the total water content above 10% but not exceeding 40% by weight, based on the amount of urea or thiourea initially added; in the presence of up to 10% by weight of other activators (such as C1-5 alcohols), the amount of water subsequently added must be at least 10% by weight and the maximum quantity of water added must be such as not to exceed a combined weight of 40% for water plus activator, based on the amount of urea or thiourea initially added.  The addition of water may be carried out in stages, the granular adduct which is obtained being mashed with an oil solvent and the grains crushed by intense stirring before coarsening the grain again by renewed addition of water and subsequent separation of the adduct from the oil solution.
Patent GB-279078-A (GB)
Title: Improvements in brake mechanism
IPC: F16D51/04
Filed: 1927-10-11
Abstract: 279,078. Soc. des Etablissements Brault et Cordier. Oct. 13, 1926, [Convention date]. Band or coil.-A band brake is guided at its middle portion by flexible radial fingers fixed to the band cooperating with a fixed guide. The flexible fingers consist of the free arms F, G of two right-angle pieces F<1>, G<1> fixed to the band. These fingers are spaced apart slightly and are guided between arms I<1> fixed to the fixed disc I. On application of the brake the fingers flex and contact with one another. The ends of the band A are connected by adjustable links D to a key E which is turned to apply the brake. A cap J is attached by screws to the ends of the arms I<1> and the flexible projections rest on steel plates K attached by screws to the arms I'. A return spring is attached to the free end of one of the projections F, G.
Patent GB-378243-A (GB)
Title: Automatic winding device for timepieces
IPC: G04B5/18
Filed: 1931-09-28
Abstract: 378,243. Winding-apparatus. AUTOMATIC E.M.S.A., 61, Rue Jacob Brandt, La Chaux de Fonds, Switzerland. Sept. 28, 1931, No. 27020. Convention date, July 22. Addition to 375,626. [Class 139.] In an improvement of the apparatus described in the parent Specification the mobile parts of the winding device are disposed on pivots 3, 4 screwed in a bridge 2 detachably secured to the movement A by screws 1. The pendulum 5 drives by a pawl 7 the co-pivotal ratchet wheel 6, geared through wheels 8, 9 to the ratchet wheel 10 of the movement spring.
Patent GB-741824-A (GB)
Title: Improvements in or relating to rotary mixing and like apparatus
IPC: A47J43/07
Filed: 1952-10-28
Abstract: 741,824. Mixing appliances. WOODMANSEE, J. L. Oct. 28, 1953 [Oct. 28, 1952]. No. 27084/52. Class 86. [Also in Groups VI, XXIV and XXXV] In a mixing and cutting apparatus of the kind comprising a mixing vessel mounted upon a supporting casing containing an operating motor arranged to drive agitating or cutting devices disposed in the base of the mixing vessel, the supporting casing consists of a base 5 secured to the lower end of the motor 4, an annular casing component 6 engaging a resilient ring 19 surrounding the base 5, and a cover plate 1 having an annular grooved rib 9 which engages the upper edge of the casing component 6. By fixing the cover plate 1 to the motor 4 by means of screws 16 the casing component 6 is sealed resiliently to the base 5. The base 5 is closed by a plate 12 having an inlet 17 for cooling-air. The rib 9 is formed with gaps, Fig. 3 (not shown) which form outlets for the cooling-air. Downwardly and outwardly inclined grooves 7 in the cover plate enable liquid spilt from the mixing vessel to drain away from the apparatus. A shaft 3 extends from the upper end of the motor and carries a resilient transmission device consisting of a cylindrical casing 23, Figs. 4, 5, an annular rubber block 25 within the casing and keyed to the walls thereof, an output spindle 27 with radial wings 30 which engage vertical grooves 29 in the internal wall of the block 25, a rubber washer 24 for preventing the wings 30 from engaging the base of the casing 23, and a steel washer 26 and circlip 28 for sealing the assembly in position around the output spindle. The mixing vessel 34, Fig. 6, is shot blasted at 35 adjacent to its base and top to form roughened gripping surfaces, and at 36 to define levels of maximum and minimum charges. The lid of the mixing vessel consists of a moulded plastic disc 37 surrounded by a peripheral rubber ring 38 having an annular lip 39 which enters the mouth of the vessel. A metal component 40 in the centre of the lid serves as a knob 41 and contains an air vent 42. A speed control switch 32 on the casing 6 is capable of occupying four positions corresponding to three different speeds and an "OFF" position, and a press button 33 controls the fourth and highest speed which can be obtained only after the rotary switch has been turned to the third speed position.
Patent GB-800671-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: FINNISTON HAROLD MONTAGUE
IPC: G21C3/24
Filed: 1953-10-02
Abstract: A nuclear fuel element contains a body of metal of low melting point with finely divided fuel in the metal.  Suitable metals are Na, Li, Pb, Bi or eutectic alloys of these metals or Sn, Al, Ga or Hg.  The fuel is uranium, plutonium, uranium dioxide or uranium carbide and represents up to 40 per cent or is of the order of 66 per cent by volume, and preferably has a particle size of 10 microns.
Patent GB-616736-A (GB)
IPC: H01B17/40
Filed: 1946-09-10
Abstract: 616,736. Insulators. DU MONT LABORATORIES, Inc., A. B. Sept. 10, 1946, No. 27200. Convention date, Sept. 26, 1945. [Class 36] [Also in Group XL (a)] A device for supporting an insulator 5 comprises a metal rod 3 extending into the insulator and a. metal fastener 6 extending over the end of the insulator. The fastener is crimped at 12, for example by applying pressure across its ends.
Patent GB-1377879-A (GB)
Title: Arrangement for case feeding of clips
IPC: B65G59/06
Filed: 1972-06-12
Abstract: 1377879 Sausages O T JANSSON 12 June 1972 27273/72 Heading A2B [Also in Division B8] Clips are clamped around a tubular body such as a sausage by apparatus comprising a groove in a bar to hold a row of clips, a feeder moving in the groove and engaging the hindmost clip to move the foremost clip to a feed-out groove in front of the bar, a punch movable into and out of the feed-out groove and cooperating with an anvil to clamp clips leaving the feed-out groove around a tubular body, the bar having two hooks to engage and correctly position an exchangeable clip storage case so that rows of clips from the case may drop into the groove as required. In the figures, magazine 10 holds rows 11, 12, 13 of clips. Row 20 of clips is positioned in groove 28 in bar 19 and the clips are moved along the groove by feeder 31 attached to spring 37, discharged and bent round a sausage skin between two sausages by a diver 32, so that the sausages may be separated by cutting between two closely adjacent clips. When the row of clips in groove 28 runs out, electric contact is made at 40 to operate a motor to reposition feeder 31 enabling a new row of clips to drop into the groove from the magazine.
Patent GB-695216-A (GB)
Title: Improvements relating to electric ironing machines
IPC: D06F67/08
Filed: 1950-11-08
Abstract: 695,216. Electric ironing machines. OPPERMAN, E. G.' Oct. 17, 1951 [Nov, 8, 1950], No. 27290/50. Drawings to Specification. Class 39(iii) An iron or pressure plate for an ironing machine, e.g. of revoluble roller type, comprises an electric heating element divided into at least two sections, and means for switching on one or more of the sections to heat different parts of the roller. In a particular embodiment the element is housed in a pressure plate spring mounted adjacent a roller supported at one end only, e.g. as described in Specifications 673.538: [Group XL(a)], and 673,539, [Group XII] and the element is in two sections of which either both or only that section at the free end of the roller may be energized by means of a manual switch.
Patent GB-826214-A (GB)
Title: Sealing or packing rings
Inventor: TURNER ROBERT STANLEY
IPC: F16J15/20
Filed: 1957-08-30
Abstract: 826,214. Piston packing; joint-making packing; stuffing-box substitutes. WALKER & CO. Ltd., J. Feb. 27, 1958 [Aug. 30, 1957], No. 27361/57. Classes 122 (1), 122 (3) and 122 (5). A sealing ring 4 comprises an annular intermediate part 1 of softer material bonded to annular ring portions 2, 3 of harder material, the intermediate part extending radially inwards and outwards to thereby provide sealing surfaces. The ring 4, as shown applied to a gland 8 of an hydraulic press, may be in the form of a split or continuous ring and the inner portion 1 may be of synthetic or natural rubber and the outer portions 2, 3 of rubberized fabric. The inner and outer peripheral surfaces of the portion 1 are of convex form and extend beyond the inner and outer diameters of the rings 2, 3 whose peripheral edges may be parallel or tapered as shown. The width of the ring 1 is such as to resiliently contact the wall of the gland housing and the ram 9 but the contact pressure may be increased by applying axial compression. The ring, instead of being circular as shown, may be of rectangular or other configuration.
Patent GB-370827-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B49/02
Filed: 1931-10-01
Abstract: 370,827. Refrigerating. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 1, 1931, No. 27379. Convention date, March 23. [Class 29.] Compression machines and systems.-The regulation of a refrigerating machine is effected by varying the number of coils 3, 31, 311 within the evaporator 1 in the cold-carrying brine circuit. The coils are cut in or out by valves 4, 41, 4<11> and 5, 5<1>, 5<11> regulated by a thermostat 10 in the outgoing pipe 14<1> for cold brine, and the valves connect each cut-out coil to air escape pipes 15, 151, 15<11> and to a pipe 8 leading to the suction reservoir of the brine pump. The coils 3, 31, 3<11> may be in parallel as well as in series, and are immersed in liquid refrigerant contained in dishes 2, 21, 2<11>.
Patent GB-304166-A (GB)
Title: New or improved means for suspending and operating draw-curtains and the like
IPC: A47H13/12
Filed: 1927-10-15
Abstract: 304,166. Garratt, A. H., and Kirton, W. Oct. 15, 1927. Suspending curtains. - Curtains are suspended from runners 10 arranged within a pair of parallel tracks 1 formed by a central strip 3 and two side strips 4, the runners 10 and the operating cord 6, which is threaded through apertures in the runners, being contained wholly within the tracks. The cord 6 is guided by porcelain end fittings or pulleys and is secured to desired runners by a hook 12 having a screwed, clamping end. The curtains are secured to the hooks 12 of the runners by hooks 16 attached to the curtains by a heading tape 15 with pairs of eyelets &c. The three strips forming the tracks may be held together by metal plates 5 or by a board. In order to keep the cord within the tracks, sleeve-like members may be threaded on the cord at intervals. The runners may be made of fibre.
Patent GB-1479667-A (GB)
Title: Gas discharge devices
IPC: G09G3/28
Filed: 1974-06-21
Abstract: 1479667 Matrix displays and circuits therefor OWENS-ILLINOIS Inc 21 June 1974 [22 June 1973] 27577/74 Heading G5C A display system comprises a gas discharge panel with crossed conductor arrays insulated from the gas and a circuit which generates pulsed voltages of high and low amplitude which together, at least equal, the sustaining voltage of the panel. This improves conditioning of the cells and avoids the need for separate write and erase pulses. In operation all the cells of the panel are inverted, selected cells are erased and all the cells are re-inverted. The X and Y sustaining signals vary between V H  and V L ; V H  and V G  respectively and are slightly out of phase to provide a stepped "pedestal" waveform. The signals are provided by pull up and pull down circuits 77, 79, 82. Normal erase pulses 115, 119 are provided on selected electrodes by circuits 82 pulling the electrodes to ground when the sustain signals are not zero. To write, the panel is inverted by reversing the signals applied to the conductor arrays; erase pulses are applied and then the panel is reinverted. To prevent unwanted erasure during inversion, V L  must be sufficiently greater than V H  that a pulse at t a  erases but a voltage at t b  does not write. Inversion at sufficiently high frequency provides electronic conditioning of all cells. Alternatively a group of border cells may be continuously on; two groups may be provided to cater for the period of inversion. In a switching circuit shown in Fig. 7 the circuits 82 may be used only to apply erase pulses and another circuit connected to buss 48 used for the sustain signal. This permits the use of lower powered switches for circuit 82. In modifications the conductors 54 may be connected to groups of electrodes if internal panel switching is employed; maintainer circuits may be provided if unacceptable voltage drops occur on unselected electrodes due to interelectrode capacitance.
Patent GB-207942-A (GB)
Title: Improvements in and relating to reflectors or hoods for lamps
IPC: F21V37/00
Filed: 1922-10-12
Abstract: 207,942. Courteen, H. Oct. 12, 1922. Light reflected by troughshaped reflectors.-Lamps, more particularly oil lamps in the form of a candle, are provided with a conical sheet metal reflector a having a light-emitting aperture at one side which is normally covered by a movable transparent door b, the lower end of the reflector being closed by a plate f provided with air supply ports h and a socket g for fixing upon the burner. Parts of the plate f are cut away to form clearance spaces for the wick-winding handles of the burner, these parts being closed by plates i. The door is mounted in a dormer-like frame c so as to lie at an angle to the axis of the reflector, is fitted with a glass or mica front, and is either hinged to the frame c or arranged to slide in grooves thereon.
Patent GB-791396-A (GB)
Title: Motor fuel
IPC: C10L1/30
Filed: 1955-09-29
Abstract: A gasoline composition contains tetraethyl lead, an ethylene halide, and the cocoamine salt of 3-methylbutyl, 2-ethylhexyl acid orthophosphate.  The cocoamine salt is present in an amount between 0.3 and 1.5 times the theoretical amount required to convert the lead in the tetraethyl lead to lead phosphate.  The ethylene halide may be a mixture of ethylene dichloride and ethylene dibromide.  The composition may also contain a lubricating oil, oxidation inhibitors, anti-freeze agents, metal deactivators and a dye.  Examples are given.  Specifications 791,394, 791,395 and 791,398 are referred
Patent GB-989585-A (GB)
Title: Diaphragm valves and method of making the same
IPC: B21C37/29
Filed: 1963-07-15
Abstract: 989,585. Valves. GRINNELL CORPORATION. July 15, 1963 [July 19, 1962], No. 27895/63. Heading F2V. [Also in Division B3] Making weir-type diaphragm valve bodies. (a) Pressing.-A carbon steel tube is heated to 1200 F. and then compressed between socketed die halves 14, 16, Fig. 7, to provide a bulged centre part 32; a core 34 limits movement of the die-halves. A rotary tool is employed to make an opening 12, Fig. 4, in the middle of the centre part 32 after which the tube is re-heated to 1200 F. and then disposed between dies 37, 38, Fig. 9. The base 43 of lower die 38 has a weir-shaping plate 44 surrounded by pins 45 slidable in a platform 48 urged upwardly by springs 50, one around each pin; an opening 52 in the platform 48 allows the passage of the plate 44. Whilst the weir is being shaped the tube 12 is held on the platform 48 by cradles 46 and opposed spring- loaded plungers 63 operated by cams 70 on the die base 43. The upper die 37 has cradles that co-operate with cradle 46 and a central part that shapes portions 80, Fig. 4, whilst the weir is being formed. The tube is again heated and placed between the dies, the lower one being unchaged whilst the upper is provided with a weir bar to give the upper weir surface 92 its final shape. (b) Machining.-The tube is then mounted on a lathe and a flange 98, Fig. 5, is cut around the opening 12 after which the tube is remounted so that the interior of the opening can be machined, the tool carriage being held at the proper cutting depth and withdrawn out of contact with the weir by a follower engaging a cam on the chuck. (c) Welding.-A diaphragm clamping plate is welded on the flange by an automatic plant consisting of a rotatable table 158, Fig. 20, on which the tube is held by a pair of piston and cylinder devices actuating shoes 172, whilst the plate 146 is urged against the flange 92 by clamps 178. The inner diameter of the plate is larger than that of the flange 1 whereby a groove for the weld is provided. The table is firstly tilted near to the welding equipment and then rotated. Excess weld metal is removed. The tube ends are shortened and then flanged or threaded for connection to a pipe system. Making weir-less type diaphragm valve bodies. The body is formed by inserting a heated tube between two dies 192, 194, Fig. 24, the tube being filled with an incompressible material, e.g. Wood's metal, which is pressurized by a plunger 208. The cap portion of the diaphragm opening is machined away to open into the tube bore and a flange is welded in position; the flange and walls of the diaphragm chamber are then " dresssed " by a single rotary tool.
Patent GB-211531-A (GB)
Title: Method of, and machine for, cutting gears
IPC: B23F5/20
Filed: 1922-10-16
Abstract: 211,531. Woltzendorff, F. Oct. 16, 1922. Gear-cutting.-In a machine for cutting gears, particularly globoid gears, a milling-cutter is mounted so as to swing bodily about a pivot lying in a plane perpendicular to the blank axis and the blank is constantly rotated at a speed dependent upon the rotation of the cutter on its axis and the speed of its pivotal movement. The blank 1 is mounted on a spindle 2 which is rotated through worm gearing 37 and change gearing 35 from the main shaft 29. The cutter 4, mounted on a spindle 3 in an angularly adjustable head 5, is driven from the main shaft through chain gearing 31, spindle 8, bevel gearing 9 and spur gears 11, the speed of the cutter and blank being arranged according to the nature of the gear to be cut. The cutter head is adjustable on a slide 12 which may be rotated about an adjustable pivot 18 by means of worm and segment gearing 17 operated through a differential gear 40 and change gears 43 from the blank driving mechanism. The pivot slide is vertically adjustable by means of a slide 23 actuated from a spindle 28. In order to cut one of the globoid gears shown in Fig. 4 the distance M between the blank axis and the axis of the pivot 18 is made equal to the distance between the gear centres. The cutter 4 is then adjusted to the required helical angle and rotated in unison with the blank, the cut being effected by the swinging of the cutter-head about the pivot 18. For cutting the mating gear the distance M remains unaltered the cutter head being adjustable as required on its slide 12. The cutter is thus rotated bodily in an arc of a circle whose radius is equal to that of the mating gear. In order to compensate for the variation in the helix angle of a globoid gear as shown in Fig. 16 the cutter bearing bracket 5 is rotated during the cutting so that the cutter is automatically adjusted to the instantaneous helix angle of the gear being cut. This is effected by means of a crank disc 49 and links 51, 52, actuated by a bevel gear 45 having a bearing in the segment 15 and running on a bevel segment 47. The proportions of the cutter may be varied according to the gears to be cut but for cutting concave worms a cutter having a length equal to its pitch is employed. The machine may also be employed to cut other types of gear such as the modified spur gears shown in Fig. 8. In order to cut the convex gear of this pair, the pivot 18 is adjusted to a position immediately beneath the blank axis. Gears of the bevel type shown in Fig. 9 may also be cut.
Patent GB-1223457-A (GB)
Title: High molecular weight aromatic polyamides
Inventor: WOLF GERHARD DIETER
IPC: C07D233/72
Filed: 1968-06-13
Abstract: 1,223,457. Polyamides. FARBENFABRIKEN BAYER A.G. 13 June, 1968 [13 July, 1967; 1 Aug., 1967; 20 Oct., 1967], No. 28086/68. Heading C3R. Polyamides of R.V. 1À1 to 2À8 (as a 0À5% solution in dimethylformamide at 20‹ C.) contain the recurring unit where Ar is a divalent aromatic radical; X and Y are optionally Ha or alkyl substituted divalent aromatic radicals consisting of an aromatic ring or 2 or more rings condensed or linked by a single bond or by -CH 2 -, -SO 2 -, -O- or -S-; B is -NH- or n is 0 to 10; Z is as X and Y; Hy is a divalent hydantoin ring and R 1  and R 2  are H or C 1-4  alkyl. They may be prepared by reacting the appropriate acid dihalide and diamine in a polar organic solvent at -30‹ to 150‹ C. Specified diacids are iso- and tere-phthalic, and naphthalene, diphenyl and diphenyl sulphone dicarboxylic acids. Numerous starting materials for preparing the diamines are given. Diamines used in specific examples are 1,3 - di - ( - p - aminophenyl) or (3<SP>1</SP> - or 4<SP>1</SP> - (p - aminophenoxy) - phenyl) - 5,5- dimethylhydantoin and those of the formulµ
Patent GB-1137016-A (GB)
Title: Apparatus for varying the radiation of electronic flash units
IPC: H01J61/28
Filed: 1967-06-19
Abstract: 1,137,016. Flash apparatus. F. FRUNGEL. June 19,1967 [Aug. 26, 1966], No. 28099/67. Heading G2A. [Also in Division H1] In an electronic flash unit comprising a plurality of series-connected discharge lamps la - 1a apparatus is provided for varying the gas content of at least one of the lamps. As shown, the lamps are connected in pairs to conduits 8e, 8f supplied with gas from cylinders 9, 10 through 3-way valves 12, 13 which also provide access to the ambient atmosphere and, together with a trigger device 5, are connected to a control unit 11. Reflectors 6a - 6d provide fields of illumination 7a-7d which by varying the pressure or nature of the lamp fillings may provide even illumination of large objects, e.g. lamps 1a and 1a which illuminate the more distant parts may be filled with helium to emit a more penetrating red light, while lamps 1b and 1c are filled with krypton.