baber/WOPTO huggingface dataset:
Patent GB-674070-A (GB)
Title: Improvements in ink ribbon progressing and reversing devices
IPC: B41J33/518
Filed: 1949-05-04
Abstract: 674,070. Ink-ribbon mechanism. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and BROWN, I. G. O. May 4,1949, No. 11954/49. Class 100 (iv). A ribbon reversing mechanism comprises a driven shaft 78 moved axially to engage the drive to either of two ribbon spool shafts 75, 75A the movement being effected by stop 88 attached near the end of the ribbon 71 which engages pivoted levers 63 operating an actuator member 86 containing a resilient member 85 coacting with a two-faced cam 84 on the shaft 78 so that when the resilient member is moved past the overcentre position of the cam the shaft 78 is moved in the reverse direction. The movement is transmitted from the levers 63 to the actuator 86 by shafts 87, 87A which have an axial movement limited by stops 87C, 87D effective when the resilient member 85, in the form of a coiled spring, passes over the highest point of the cam surfaces 84, 84A. The subsequent contraction of the spring 85 effects the axial movement of shaft 78 to cause engagement of either of gears 79, 79A with gears 76, 76A or the spool spindles 75, 75A which have encircling springs 81, 81A imparting a braking action on the non-driven spool to prevent slackening of the ribbon. The ribbon spool shafts 75, 75A may be formed with hollow ends for the reception therein of ends of the shaft 78. The mechanism may be used in a time recorder machine described in Specification 674,071, [Group XIX].
Patent GB-145928-A (GB)
Title: Improvements relating to vapour burners
IPC: F23D11/44
Filed: 1919-08-29
Abstract: 145,928. MacLennan, A. Aug. 29, 1919. Vaporizing-apparatus.-A vapour-burning apparatus for use in the fire-boxes of stoves, coppers, geysers, &c., comprises an asbestos-lined cast-iron tray c having air-inlets p and feet q, a horseshoeshaped burner tube b clamped to the tray c by a plate m and screw n, a horseshoe-shaped vaporizing-tube a fitted with adjustable flamespreaders d, e and containing iron filings, and a vertical connecting-tube r. The tray c is supplied with methylated spirit to start the burner. The walls of the tray. are extended upward to shield the burner holes f, g. The apparatus is supplied with fuel oil from a tank h above the burner, the fuel pipe k leaving the tank near the bottom of one side and being fitted with a regulating valve l.
Patent GB-661605-A (GB)
Title: Improvements in machines for cutting teeth in saw blades
IPC: B23D65/02
Filed: 1949-05-05
Abstract: 661,605. Punching; making saws. TURNER BROS. (BIRMINGHAM), Ltd., TURNER, E. F., and FELLOWS, D. J. R. May 5, 1950 [May 5, 1949], No. 11995/49. Classes 83 (ii) and 83 (iv). In a machine for punching notches in the edge of a saw blank 14, having guides 16 on opposite sides of the die 12 which co - operates with the punch 13, the means for pressing the blank towards the guides comprise a bracket 17, with two pressure members or rollers 19, 20 more widely spaced than the guides 16 nearest the die, pivoted to a spring-pressed member on an axis 23 at right-angles to the blank 14 and means to fix at will the bracket against turning. In the machine shown the spring- pressed member is an arm 22 pivoted at 27 and having a pin 28 which engages a rack 29, Fig. 5, the pinion 33 of which is connected to one end of a torsion spring 37, Fig. 4, so as to urge the bracket 17 towards the guides 16, actual contact being prevented by a stop 32. The pinion 33 is mounted on a shaft 34 journalled in the frame 10 and on the opposite end of the shaft is mounted a friction-overriding clutch which, when operating, prevents the spring from moving the arm 22 towards the guides 16, i.e. when replacing work by a fresh blank. This clutch is held out of action, when the machine is operating, by a pin 51 on a collar 43 operated by hand and retained in this position by a detent 52. The collar 43 can also be rotated in the reverse direction to withdraw the arm 22 ready for replacing the work. In operation the blank 14 is placed in its mid-position, Fig. 1, while the arm 22 is held away, the clutch is then made inoperative and the bracket 17 presses its rollers against the blank, the bracket is then clamped to the arm by screw and nut 26, the blank is moved by hand to its starting position, Fig. 2, and the machine of known type started to feed the blank by rollers, step-by-step to the right, the punch 13 operating at each pause.
Patent GB-1263093-A (GB)
Title: Improvements in and relating to ultrasonic imaging techniques
IPC: G01N29/06
Filed: 1969-03-06
Abstract: 1,263,093. Acoustic holography. HOLOTRON CORP. 6 March, 1969 [6 March, 1968; 20 May, 1968], No. 12036/69. Heading H4D. [Also in Division G2] To reduce the dependence of image resolution on the size of light source 38 (Fig. 3) and on irregularities in ultrasonic hologram detecting surface 31 when reconstructing an optical image of object 34 from an ultrasonic hologram, viewing optics are focused on the detecting surface itself. As shown the optics comprise lens 40 and spatial filter 42 for selecting a first order diffraction beam, and eyepiece 44 (which may be replaced by a photographic or television camera). To ensure that the real and conjugate diffraction images of the object are in or near to the detecting surface plane, the object is placed near the detecting surface or an acoustic image of the object is formed at the surface by acoustic lens 50 (Fig. 8). Resolution of the hologram is improved by making the wavefront of the reference ultrasonic beam from transducer 26 perfectly regular. If transducer 26 is a disc type, the disturbing effects of conical beams 88 (Fig. 7) from its edges are avoided by forming an acoustic image 82<SP>1</SP> of it at the detecting surface, whereby region AB is free from edge effects. Acoustic lens 92 (Fig. 8) forms the image and adjustment of the image size gives control of the energy density at the detecting surface. A regular spherical wavefront can be formed (Fig. 9) from a reference beam (disc or spherical) transducer by means of an acoustic lens 98 and pinhole stop 104.
Patent GB-546870-A (GB)
Title: Improvements in undergarments
IPC: A41B9/02
Filed: 1941-09-19
Abstract: 546,870. Undergarments. ATLAS UNDERWEAR CO. Sept. 19, 1941, No. 12097. Convention date, Nov. 22, 1940. [Class 141] Legless shorts comprise front and back sections 10, 11 connected to an elastic waistband 13, the lower middle part of the front section being formed by a fly insert consisting of side panels 15, 16, and a front panel 17. The inner edge 18 of the panel 16 is free, while one edge 19 of the front section is secured to the adjacent edge of the panel 15 and also to an edge 20 of the panel 16, the other edge 21 of the front section being free. The lower end of the front section is connected to the central edge 23 of the lower end of the back section. The section 17 is formed of knitted material having incorporated in it vertical elastic strands, so that it serves to keep the garment taut at the crotch and to prevent its free edge 21 from gaping. Further, since it forms part of the leg openings, it is not necessary to employ elastic strips usually used to bind these openings.
Patent GB-102907-A (GB)
Title: Improvements in Ball-bearings.
Inventor: FOWLER WALTER
IPC: F16C19/18
Filed: 1916-08-31
Abstract: 102,907. Fowler, W. Aug. 31, 1916. Ball bearings. - A ball bearing having a grooved outer race c and a spherical inner race c<1>, which can be tilted to enable the balls to be inserted, is combined with a thrust bearing comprising balls g bearing against a flange c integral with the race c<1>, and against a ring f which is seated spherically in the casing k or may be integral with it.
Patent GB-927770-A (GB)
Title: Methods of and apparatus for generating electrical energy
IPC: G21D7/02
Filed: 1962-03-30
Abstract: 927,770. Generators operating by electromagnetic interaction with fluids. A. VALFELLS. March 30, 1962 [April 3, 1961], No. 12414/62. Class 35. [Also in Group XL (a)] Apparatus for generating electrical energy comprising means for producing a moving stream of ionized gas including fissile material and a substance of low ionization potential, means for establishing a magnetic field across the gas stream, and means for utilizing the electrical potential thus created across the gas stream, includes a fission chamber having means for establishing a neutron flux in a gas within the chamber so as to heat the gas and to cause thermal ionization, and nozzle means through which the gas is allowed to expand to form the moving stream of ionized gas. The working medium may comprise uranium tetrafluoride laced with a small amount of uranium tri-iodide ; at the operating temperature the latter decomposes to form free uranium and iodine, and the low ionization potential of the uranium then facilitates thermal ionization. In Fig. 1 the gas passes into a fission chamber 10 wherein fission takes place, either by means of an external neutron flux or because the chamber is arranged to be self-critical, and the gas is consequently heated and allowed to expand through a nozzle unit 13. The nozzle is immersed in a magnetic field and is provided with electrodes from which an output current may be drawn. After passing through the nozzle unit the gas passes through a heat-exchanger and compressor before returning to the fission chamber. The electrodes may form the walls of the divergent part of the nozzle and may comprise two halves of graphite separated by insulating material, Fig. 2 (not shown). In another arrangement, shown in cross-section in Fig. 3, the nozzle 21 is made of pyrographite which has good electrical conductivity in a direction parallel to the direction of its molecular layers but poor conductivity normal to this direction. The graphite is arranged with its molecular layers parallel to the magnetic field and to the gas velocity vector. Connections 23, 24 allow a current to be driven through an external circuit, but due to the poor transverse conductivity the graphite does not shortcircuit the established potential.
Patent GB-567328-A (GB)
Title: Improvements in photographic negative elements
IPC: G03C1/775
Filed: 1943-08-03
Abstract: 567,328. Photographic material. TOLAND, W. C., and BASSIST, E. Aug. 3, 1943, No. 12508. [Class 98 (ii)] Photographic negative material comprises a support including a urea formaldehyde resin which dries into a layer of water-wettable material and thereafter sets to a water-repellent state, a coating of water-wettable material bonded to the support, and a layer of lightsensitive material overlying the coating of water-wettable material. The support may comprise paper 1, e.g. kraft paper, impregnated with a sizing agent, e.g. polyvinyl alcohol or other polyvinyl compounds, rosin size, or a mixture of a polyvinyl compound and rosin size. The polyvinyl alcohol or other size may be water-absorbent to a slight degree. Gelatin or glue may also be used as the size. To both sides, of the impregnated paper support are applied thin layers 2 of an aqueous dispersion of a urea formaldehyde resin (e.g. Plaskon or the material known under the Registered Trade Mark " Casco ") containing a hardening agent for converting the resin from a water-wettable condition to a water-repellent state, and then to one side is applied a substratum layer 3 of sodium silicate or albumen, and finally a gelatin silver halide emulsion layer 4. Modified material comprises a urea formaldehyde resin support, a substratum layer and a light-sensitive emulsion layer.
Patent GB-717362-A (GB)
Title: Improvements in and relating to electron emission coating mixtures
IPC: H01J9/04
Filed: 1952-05-19
Abstract: 717,362. Cathode materials and processing. BRITISH THOMSON-HOUSTON CO., Ltd. May 19, 1952 [May 18, 1951], No. 12605/52. Class 39(1) The cathode is coated with a mixture of alkaline earth carbonates suspended in cellulose dissolved in ethylene glycol monoethyl ether acetate. The mixture may comprise a suspension of 130- 260 grams of alkaline earth carbonates, preferably the triple carbonates, in 115-145 ml. of nitrocellulose dissolved in " Cellosolve Acetate" (Registered Trade Mark) The triple carbonate may consist of barium 38.6 mol per cent, strontium 31 and calcium 30.4, and the binder of 2.1 kg. of nitrocellulose in 147 kg. of acetate to give a specified solid content and viscosity; 17.04 litres of the binder may be mixed with 30 kg of the carbonates and ball-mixed for 20 hours.
Patent GB-127764-A (GB)
Title: Improved Blade Holder for Stropping Blades of Safety Razors.
Inventor: KIRBY JOHN IRVING
IPC: B24D15/10
Filed: 1918-08-03
Abstract: 127,764. Kirby, J. I. Aug. 3, 1918. Razors, safety. A stropping-holder for a safety-razor blade comprises two parts g, h pivoted together so as to open and close in scissors fashion, the blade becoming gripped between the portions f<2>, and the other portions constituting a handle; peg and sinking engagements x, y are provided, and certain of the pegs engage the holes in the razor blade. A pivot-bolt c<2> is employed passing freely through the part h and engaging a screw-threaded hole in the part g, its extreme end being expanded. The parts g, h become clamped together on turning the bolt by means of a milled head. The holder is opened and closed by the aid of lugs g<4>, g<5> on the part g and of extensions on the part h.
Patent GB-232797-A (GB)
Title: An improved clothes rail
IPC: D06F57/12
Filed: 1924-05-24
Abstract: 232,797. Wilkie, D. May 24, 1924. Clothes rails.-A clothes rail for atachment to a mantel-piece comprises arms 1 having sockets 2 for supporting the rail 4, the arms being supported by chains 3 so as to bear against the sides of the fireplace.
Patent GB-560117-A (GB)
Title: Improvements in "clocking in" or workmen's time and wages cards
Filed: 1942-09-10
Abstract: 560,117. Time-recording card. CHAPMAN, H. J. Sept. 10, 1942, No. 12771. [Class 106 (iv)] A workman's time and wages card has parallel sides, with the top portion increased in width by outwardly inclining one or both side edges. The card may be used with an address or like printing machine such as that known under the Registered Trade Mark " Adrema."
Patent GB-908154-A (GB)
Title: Improvements in or relating to quilting attachments for sewing machines
IPC: D05B11/00
Filed: 1960-04-11
Abstract: 908,154. Sewing-machines. ANCIENS ETABLISSEMENTS BEYROUX, and MEUNIER, M. April 11, 1960 [April 11, 1959], No. 12807/60. Class 112. In a quilting attachment for a sewing- machine having a work-holding frame movable along a given outline by the co-operation of a drive and guide member with a stationary rail conforming to that outline, the rail is interrupted at the tip of a point of that outline and a thrustblock is there disposed having an auxiliary arcshaped rail which co-operates with an auxiliary drive member on the frame. The rail may comprise a belt, cable, or, as shown, a rack 10. The upper frame of the quilting attachment carries cross-pieces 12 on which is fixed a sleeve 13 in which a tube 14 may pivot and slide against the action of a spring 17. A pinion 11 freely mounted on a shaft 27 journalled in drive-plates 16 secured to the lower end of the tube engages the rack 10 and is rotated by chains and gearing from a motor-driven shaft 15 journalled in the tube. Auxiliary drive means comprising pinions 30a, 30b fast on the shaft 27 are driven by the chain and gearing by the motor but at a higher speed than that of the pinion 11. As the pinion 11 reaches the tip of a point of the outline where the racks 10 are discontinued (see Fig. 7), the conical portion 16c (see Fig. 5) at the lower parts 16a of the drive-plates 16 engages a centring stud 33 provided on a thrust-block 32 disposed at the tip. One of the pinions, in this case the pinion 30a, meshes with a curved rack 34 provided on the block, to rotate the driving assembly about a vertical axis until the plates 16 meet a stop 35 so positioned that the drive-plates are in a position to move off along the axis of the second branch of the point. Where the given outline includes a crossing the tooth arranged to be positioned at the crossover point is replaced by a peg. This peg is not required when, in another modification, the pinion 11 is replaced by a chain whose lower part is guided so as to present a horizontal portion to the rack.
Patent GB-720322-A (GB)
Title: Improvements in the manufacture of box-joint pliers, pincers, nippers and like hand tools
Inventor: ATKINS LEONARD CHARLES
IPC: B21K5/00
Filed: 1953-05-22
Abstract: 720,322. Pliers. WILKINSONS TOOLS, Ltd. May 22, 1953 [May 22, 1952], No. 12932/52. Class 61. [Also in Group XXII]. In box jointed pliers, the handle 11 carrying the head 13 passes through a joint 16 which is formed in the head 15 and has an open ended slot 19 to receive the handle 20. After assembly, the handle is brazed to the head. The handles may be made of steel of lower grade than that of the head.
Patent GB-254469-A (GB)
Title: Improvement in automatic temperature regulators
IPC: G05D23/185
Filed: 1925-05-18
Abstract: 254,469. Wingfield, B. T. May 18, 1925. Valves controlled by pilot or relay valves.-In a thermostatic relay valve apparatus, hunting is prevented by imparting to the relay a check movement or a movement in the opposite direction to that given by the thermostat so that movement through the whole travel is prevented. The valve A, Fig. 1, is actuated by a bellows device B under the control of fluid pressure admitted through an adjustable valve C. A fixed plate P carries an adjustable leak valve E, and a device F which transmits an impulse from the thermostat G. A lever H connects the spindles of the valves A and E to the device F. The valve A is held open by pressure in the chamber B, and valve E is closed when the thermostat is cold. The end O of the lever moves upwards about the point L as a pivot, lost movement being provided corresponding to full movement of the end O with full lift of the valve A. When the thermostat is at the desired temperature, valve E is adjusted so that it is just open and releases pressure from the chamber B through pipe M. Increase in temperature opens the valve E, and causes valve A to close under the influence of its return spring. The closing movements tends to close the valve E, thus inhibiting the movement of the valve A. The lever ratio IL: OL may be varied to graduate the movement of the valve A over any desired temperature interval. A modification is described in which the temperature impulse is used to control by fluid pressure a valve which admits pressure to a cylinder having a piston which actuates the main valve or the like. Another modification is described, suitable for the small movements obtained from the capsule type of thermostat. Specifications 4270/11, 203,328, and 234,194 are referred to.
Patent GB-695158-A (GB)
Title: A process for producing steel from ferrous ores directly
IPC: C21B13/00
Filed: 1951-06-01
Abstract: 695,158. Reducing iron ores. SOC. FORNI LUBATTI. June 1, 1951 [June 5, 1950]. No. 13049/51. Class 72 A process of obtaining steel directly from iron ore comprises forming a bath of slag and maintaining it at a high temperature, charging on to the slag an intimate mixture of iron ore, reducing agents and slag formers from which is collected a raw molten steel for charging to a refining furnace, and discharging slag to maintain a constant thickness of slag layer. As shown, a liquid slag may be formed in a reducing furnace 4 and a charge of intimately mixed, finely divided iron ore, lime, and coke fed on to the surface of the slag from a mixer 1. An electric current is passed through the slag from electrodes 5 to maintain it at a temperature at which the iron ore in the charge will be reduced, the iron falling through the slag layer and collecting at the bottom, from whence it may be fed continuously or intermittently to a refining furnace 12 which may be an electric furnace or an open-hearth furnace. The thickness of the slag layer may be kept constant by drawing off slag at 8.
Patent GB-1199652-A (GB)
Title: Polyvinyl Acetals
IPC: C08F8/28
Filed: 1967-07-11
Abstract: 1,199,652. Polyvinyl acetals. UNION CARBIDE CORP. 11 July, 1967 [11 July, 1966], No. 13171/70. Divided out of 1,199,651. Headings C3G and C3P. Polyvinyl acetals are produced by (a) contacting a non-aqueous dispersion of homopolymerized vinyl ester, having up to 20 carbon atoms per vinyl ester monomer unit dispersed in an inert hydrocarbon diluent by polymerizing the vinyl ester in the presence of a polymeric organic interfacial agent, the polymerized vinyl ester having an average particle size of 0À05 to 50 microns, with: (1) 0À05 to 3À00 moles, per mole of polymerized vinyl ester, of an aliphatic alcohol having from 1 to 6 carbon atoms; (2) 0À03 to 1À5 moles, per mole of polymerized vinyl ester, of an aliphatic aldehyde or oligomers thereof having from 1 to 6 carbon atoms; and (3) A catalytic amount of an acid catalyst, for at least 5 minutes at a temperature of from 15‹ to 70‹ C.; and (b) Recovering the polyvinyl acetal. The vinyl ester may be vinyl acetate, the polymeric organic interfacial agent may be an ethylenevinyl acetate copolymer, the aliphatic alcohol may be methanol, the aliphatic aldehyde may be butyraldehyde or trioxane and the acid catalyst may be hydrochloric acid.
Patent GB-866939-A (GB)
Title: Method for the conversion of excess energy from nuclear power
IPC: G21D5/06
Filed: 1958-04-25
Abstract: 866,939. Steam regenerative accumulators. MARGUERRE, F. April 25, 1958 [April 26, 1957; July 24, 1957], No. 13202/58. Class 123(2) [Also in Group XL(a) In a nuclear power plant in which most of the heat to be rejected is removed by cooling water, waste heat and excess night energy are converted for daytime use. Hot gases from a reactor 1 pass through a turbine 2, heat exchanger 3, compressor 4<SP>1</SP>, 4<SP>11</SP> and give up their remaining heat to 'cooling water in the coolers 5<SP>1</SP>, 5<SP>11 </SP>.This heat is stored in accumulators 10, from which steam is drawn by a compressor 12 through evaporators 11', 11" and conveyed to higher pressure accumulators 13. The accumulators 13 can discharge steam through a turbine 15 to full vacuum. A fossil fuel superheater 14 or a superheat recuperator can be inserted in the high pressure line. Further heat is extracted from the accumulators 10 by taking steam through lines 17 to additional low-pressure turbine inlets. During charging the water from accumulators 10 is recycled; in discharging, it flows off at 18. If very much excess energy is available for short times, the coolant of the gas turbine 2 may be allowed to superheat and then be stored separately. If steam turbine plant is used instead of a gas turbine, steam may, be bled from it direct to the low-pressure accumulators 10.