baber/WOPTO huggingface dataset:
Patent GB-655488-A (GB)
Title: Improvements in design rule
IPC: G01B3/00
Filed: 1948-05-31
Abstract: 655,488. Mathematical drawing appliances. DURISOL, Inc. May 31, 1948, No. 14672. Convention date, July 9, 1947. Drawings to Specification. [Class 97 (iii)] A rule for architectural and other design is provided with two adjacent scales, both having a common zero starting point and being provided with graduations representing length, the one scale having a first graduation represented by a selected number and other graduations between it and zero which are obtained by dividing the member by 1.618 (1+#5/2) and the quotient thereof by 1.618 and successively for the other graduations and the other scale having a first graduation twice the value of the first selected number and other graduations in the same proportion. Both scales may be extended towards infinity beyond the first graduations by further graduations which are obtained by multiplying the members and each subsequent product by 1.618. The number selected may be the height of the solar plexus of an average man (44.498 inches) in which case the first graduation (corresponding to 88,997 inches), is the height to the extremity of the fingers of the upraised arm. Secondary graduations obtained by subtracting a number from the next below and dividing successively by 1.618 may also be provided on the scales.
Patent GB-635289-A (GB)
Title: Method and composition for the treatment of air
IPC: A61L9/01
Filed: 1947-06-03
Abstract: A composition for freshening vitiated air comprises chlorophyll in suitable solution.  The chlorophyll may be dissolved in a mixture of water and ethyl alcohol; and the solution preferably also contains formaldehyde.  The composition is dispersed into vitiated air in an enclosed space by spraying from a closed container, or by evaporation from an open container.
Patent GB-865503-A (GB)
Title: Improvements in or relating to trimming resistances
IPC: H01C10/38
Filed: 1959-04-30
Abstract: 865,503. Variable resistors. PREH, W., and PREH, A., [trading as PREH ELEKTROFEINMECHANISCHE WERKE, J. PREH NACHFOLGER]. April 30, 1959 [April 30, 1958; May 16, 1958; July 18, 1958], No. 14789/59. Class 37. A variable resistor comprises an insulated wire coated with resistance composition and having a metal sleeve slidable over the surface. Fig. 2 shows a wire 1 having a coating of lacquer 2 and carrying a layer of resistance material 3 and a wire helix 9. Coarse adjustment of resistance value is provided by sliding a resilient metal sleeve 5 along the resistor. The sleeve 5 may be rotated so that the collar 7 follows the convolutions of the helix 9 thus providing a fine adjustment. Connections are made to the wire 1 and the helix 9, or the helix may be omitted as in Fig. 1 (not shown), and the sleeve provided with a soldering lug. Fig. 3 shows a resistor soldered to a printed circuit board 11. A second resilient sleeve 10 is provided to make contact with the wire 1. The value is adjusted by movement of the resistor by means of the bent end of the insulated wire projecting through a slot 12 in the circuit board 11. In Fig. 4, two wires 13, 14 having insulating ends 2, 2<SP>1</SP> are twisted together and coated with resistance material 3 so that the ends of the resistance coating make contact with the bare parts 4, 4<SP>1</SP>. of the wires. One or more auxiliary wires may be twisted together with the wires 13, 14 to provide a smoother surface for the coating 3. The wire cores assist in cooling the resistors.
Patent GB-1409264-A (GB)
Title: Method of and composition for sealing and waterproofing joints  or gaps in or between parts of paving or structures
IPC: C08L95/00
Filed: 1972-03-29
Abstract: 1409264 Coal digest/PVC composition COAL INDUSTRY (PATENTS) Ltd 1 June 1973 [29 March 1972] 14798/72 Headings C3N and C3P [Also in Division E1] A plastic composition comprises an oil or tar extended coal digest and 3-25% by weight of a vinyl chloride homopolymer or copolymer, the coal digest before extension having a needle penetration, converted to a ring and ball softening point of 85‹ C., of at least 10. Suitable comonomers that may be employed are vinylidene dichloride and vinyl acetate. Coal digest is the product formed by the treatment of coal with a pitch, tar, high-boiling oil or other solvent at an elevated temperature, e.g. 300-450‹ C. In such a coal digest the coal is present in solution either as itself or in a solvolysed form. The coal digest may be extended with an oil or tar formed in the destructive distillation of coal. Generally the oil-extended coal digest contains 0À25-1 part of oil or tar extender for each part of coal digest. The composition may also contain a finely divided particulate filler, e.g. talc, whiting, clay, slate dust and carbon black. In addition a fibrous filler may be used. The composition may also contain a tackifier, e.g. a coumarone/indene resin, suitably in an amount 2-20% by weight. The specific examples disclose compositions comprising 39-42% by weight coal digest, 15-18% by weight anthracene oil, 3À5-16% by weight polyvinyl chloride and additionally in one example 1À5% by weight of asbestos fibres.
Patent GB-348878-A (GB)
Title: Apparatus for the production of photographic duplicates
IPC: G03C5/10
Filed: 1930-05-14
Abstract: 348,878. Photographic printing apparatus. TESCHENBRUCK, M. Z. VON, 2, Sternengasse, and MAYER, K., 170, Gundeldingerstrasse, both in Basle, Switzerland. May 14, 1930, No. 14831. Convention date, May 18, 1929. [Class 98 (ii).] In apparatus for producing photographic duplicates of printed matter or the like, a carriage carrying a phosphorescent element is adapted to move from a frame where it is illuminated by a source of light to a frame where it acts as the printing light for copying an original on to light sensitive material. In the form shown, the original h and sensitive material i are supported on the part B and a number of lamps k are housed in the part A below a matt glass plate c<2>. The carriage a loaded by a plate g of iron or lead has a recess for receiving a slide c carrying the phosphorescent material b which is protected by the glass plate f. A rubber roller d and two rolling balls e, provided to facilitate movement of the carriage a, seat in grooves j, j<1>, when the carriage is over the part B and in grooves p, p<1> when over the part A. A plunger o seated in the recess p is adapted to switch on the lights k only when the carriage a is over the part A.
Patent GB-569612-A (GB)
Title: Explosion proof battery
IPC: H01M50/367
Filed: 1943-09-10
Abstract: 569,612. Accumulators. THORNTON, A. A. (Philco Radio & Television Corporation). Sept. 10, 1943, No. 14883. [Class 53] To prevent damage by explosion of gases liberated during charging &c. and to reduce the acid spray given off, the gas-collecting space above the electrolyte is divided by irregularly-shaped small solids into a number of gas-permeable passages small enough to permit combustion to take place without causing a forceful explosion. The solids may consist of stone, glass crystals, crushed silica, sintered diatomaceous earths, glass wool, &c. contained in a top structure with a perforated under plate 5 fitting in or on the cell 1. The gases normally pass through the solid material and escape by the vent 11. If a spark occurs near the vent, a series of small explosions passes throughout the gas-collecting space without harmful effect.
Patent GB-1419143-A (GB)
Title: Semiconductor photoelectric device
IPC: H01L27/146
Filed: 1973-03-28
Abstract: 1419143 Light-sensitive semiconductor devices OMRON TATEISI ELECTRONICS CO 28 March 1973 [4 April 1972 30 Sept 1972] 14946/73 Heading H1K A light-sensitive device comprises a semiconductor body 11, Fig. 4E bearing a plurality of stannic oxide films 13 which form rectifying barriers with the semiconductor. The edges of the films 13 overlie a grid 17 of insulating material and are there interconnected by a metallic grid 114 and its surrounding frame 14. A large area ohmic contact 15 is provided on the opposite face of the body 11. The arrangement constitutes a parallel-connected array; by subdividing the stannic oxide area stresses in the material due to differential thermal expansion between it and the semiconductor body are reduced. A modified device has an intervening film of insulating material between each stannic oxide film and the semiconductor body. With a silicon body the film may be of silicon between 20 and 27 thick. Suitable semiconductors for the devices are silicon, germanium, and gallium arsenide. The insulating grid may be of silica, silicon nitride, germanium oxide, plumbosilicate glass, or aluminosilicate glass. The metallic grid and its surrounding frame may be formed together by vapour deposition of nickel. The embodiment shown uses an N-type silicon body (which may comprise an epitaxial layer on a lower resistivity substrate), silica insulating grid, tin oxide deposited overall by oxidative pyrolysis of dimethyl tin dichloride (or from an aqueous or organic solution of stannic chloride) and etched to films 13, and nickel grid 114 to the frame 14 of which a plurality of aluminium wires are ultrasonically welded and connected to a metallized part of a ceramic mounting substrate (not shown.) Alternatively a metal part corresponding in shape to the frame 14 and forming part of a header may be bonded to the frame. The tin oxide may be doped with antimony oxide during deposition. During processing the tin oxide is etched by coating the areas to be removed with zinc, etching with dilute hydrochloric acid, recoating with zinc, and etching with concentrated hydrochloric acid. Fig. 6 shows a device 30 of the invention mounted on a ceramic base 31 having metallized areas 33, 34 for respective connection to contact 15 and, via wires 39, frame 14. Conductive pins 35, 36 extend connection from areas 33, 34 through base 31. A modified mounting in which area 34 and wires 39 are replaced by a further metal frame is described (Fig. 9, not shown). Reference has been directed by the Comptroller to Specifications 1,326,377 and 1,322,056.
Patent GB-1206197-A (GB)
Title: Luminescent materials
IPC: C01F17/00
Filed: 1968-03-28
Abstract: 1,206,197. Luminescent materials and uses thereof. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 March, 1968 [31 March, 1967], No. 14981/68. Heading C4S. Amethod of preparing luminescent A( 2-x )B x O 2 S wherein A is at least one of Y, Gd, and La, B is at least one of the lanthanide elements of atomic number from 58 to 63 inclusive or from 65 to 71 inclusive and 0À2>x>0À0002, comprises melting KCNS and/or NaCNS (prefefably 2 to 10 times in excess of the stoichiometric quantity required to form the oxysulphide), heating the melt to 300 to 700 C. (e.g. 480 C.), dissolving in the melt oxides of A and B in the amount required to form the desired oxysulphide, keeping the molten reaction mass at 200 to 700 C. (e.g. 500 to 540 C.) for at least two minutes, and cooling. The product may be leached with water to separate the oxysulphide, which may then be heated at from 1100 to 1500 C. (e.g. 1300 C.) in an atmosphere containing no free oxygen (e.g. nitrogen or air reacted with carbon) for 15 to 240 minutes. Preparation examples of Y 1À9 Eu 0À1  +++ O 2 S, La 1À9 Eu 0À1 O 2 S, and Gd 1À94 Er 0À06 O 2 S are described. Colour TV and lamp applications are instanced and excitation by electrons and long and short wavelength U.V. radiations. Reference is made to known phosphors of the above composition activated by TbEu and Sm.
Patent GB-1486980-A (GB)
Title: End-face sealing device for a roller pair
IPC: D02G1/12
Filed: 1975-04-11
Abstract: 1486980 Stuffer box crimping; sealing feed roll nip HOECHST AG 11 April 1975 [13 Feb 1975] 14997/75 Addition to 1467040 Head ing D1F In an arrangement for sealing the co-planar end faces of a pair of parallel, rotatable rollers, part of whose circumferential surfaces form part of the wall of a chamber, a sealing plate parallel to the roller end-faces is provided at each end of the pair, each sealing plate bearing against the end faces of sealing elements fitted into the respective end-face of each roller, each element being so mounted on a part of the apparatus that does not rotate with the rollers that the sealing element is adjustable in the axial direction of the rollers and remains stationary during roller rotation. Stuffing rollers 1 for stuffing filaments into a crimping chamber are carried on shafts 2 rotating in blocks 14. Sealing plate 7 is pressed by bolt 10, or, e.g. by a spring or hydraulic system, against annular elements 5 let into but spaced from the rollers. Elements 5 are threadably mounted to adjust nip gap 8, are locked by means 11, 12 acting on split element parts, and may be mounted directly on blocks 14. Bodies 4 may have one or more drainage holes for filament liquid, or seals may be fitted between the shafts and elements 5 or bodies 4. The rollers may be pressed together.
Patent GB-612198-A (GB)
Title: Improvements in or relating to a process and device for producing wool-like rayon filaments
IPC: D02G1/02
Filed: 1946-05-17
Abstract: <PICT:0612198/IV (c)/1> In a process for producing wool-like rayon filaments of the viscose or cuprammonium cellulose type by drying and setting a filament previously swollen by impregnation with water or an aqueous solution containing products capable of forming insoluble condensation or polymerisation products, which filament has been given a false twist, the filament is partly dried before it is twisted.  The greater part of the water may be expelled before the filament reaches the frizzling device.  Any known device with reels or rollers in which the filament is moved in helical windings may be used to transport the filament through the drying device, and the rollers may be in crossed pairs, parallel fluted pairs and the like. Although the temperature in the frizzling device may be 120-130 DEG C., that in the pre-drier is rather lower, to prevent too strong or non-uniform a pre-drying.  The number of windings in the pre-drier may be increased to effect a satisfactory degree of pre-drying.  The waste air from the tubular drying duct of the frizzling device may be employed to heat the pre-drier.  A suitable apparatus for carrying out the process comprises a filament pay-out tackle 2, an impregnating bath 3, a pre-drier 4, a filament feed 5 (this may be a simple guide roller), a tubular drying duct 6, a positively-driven twister 7, a second filament feed 8 and a wind-up roll 9.  If desired, the filament 1 may be passed through two false twisters rotating in the opposite sense, the first between the pre-drier and the tubular drying duct, the second immediately following the tubular drying duct.  Suitable pre-impregnating solutions may contain ethanolamine derivatives and other amines in the presence of formaldehyde such as an acetic acid solution of ethanolamine stearate, urea, formaldehyde and ammonium thiocyanate.
Patent GB-382902-A (GB)
Title: Improvements in or relating to the manufacture of glass flower blocks and the like
IPC: C03B9/32
Filed: 1931-08-29
Abstract: 382,902. Moulding glass flower-holding blocks. DAVIDSON, T., Teams Glass Works, Gateshead-on-Tyne. Aug. 29, 1931, No. 15013/32. Divided on 382,699. [Class 56.] Relates to the manufacture of glass flowerholding blocks bv the method described in Specification 7830/10, [Class 56, Glass], in which the glass is pressed in a mould by a plunger having fingers which form the holes in the blocks. As soon as the glass is pressed, the mould is inverted on to a second mould or support while the plastic glass sags or droops to form the domed top of the block.. According to the present invention, the block after being inverted is rotated about a vertical axis in order that the glass may droop vertically and maintain the shape and uniformity of the holes. Means may be provided also for supplying air under pressure to the holes to assist in maintaining their shape. In the construction shown in Fig. 1, the body 1 of the second mould is carried on a flanged base 2, and is provided with a raised rim 3 which engages a groove formed on the glass block as described in Specification 382,699. When the block has been placed in position, the mould is placed on a rotatable stand 4 having an inlet 5 for the admission of compressed air to the bottom of the mould. Apertures 6 and interconnecting grooves 7 are formed in the mould for conveying the compressed air to the holes in the glass block when it droops into contact with the interior of the mould. In the construction shown in Fig. 3, separate nozzles 6<1> are provided for each of the holes in the block B although a single large hole may also be used. The block is supported by a ring 8 carried on supports 9, and both the nozzles and the supports are carried by a rotatable stand 4.
Patent GB-1132027-A (GB)
Title: A safety clasp for a bracelet
IPC: A44C5/20
Filed: 1966-04-05
Abstract: 1,132,027. Bracelet clasps. ANDREAS DAUB, K.G. 5 April, 1966 [12 April, 1965], No. 15029/66. Heading E2A. A safety clasp for the detachable resilient connection of the two end portions of a bracelet, includes a housing A a cover C having a hook member 8 and pivotally connected to part of the housing, a slide B having an abutment surface and slidable in the housing, a bar D having a tongue 10 and a releasing member 9 and slidable inside the slide and resilient means 4 urging the abutment surface and the tongue away from one another, the arrangement being such that, in use, one end portion of the bracelet can be detachably disposed between the housing and the cover and the other end portion of the bracelet undetachably connected to the slide. In the construction shown the end portion of the bracelet disposed between the housing and the cover is connected to a ring 14 which is releasably held between the cover and the housing. The cover is hinged between two lugs 6 of the housing and the releasing member 9 is an end portion of the bar D which is engageable by a finger nail and is disposed behind the cover. In a modification the base of the housing is provided with projections at one end which engage in bores in lugs of the cover to provide a pivotal connection and the releasing member 9 passes through an aperture in the cover. In a further modification the releasing member 9 passes through an aperture in the side wall of the housing and if desired there can be two such releasing members one passing through each bore of the housing.
Patent GB-1420651-A (GB)
Title: Time-base error correction system
IPC: H04N5/92
Filed: 1973-03-29
Abstract: 1420651 Automatic timing control AMPEX CORP 29 March 1973 [3 April 1972] 15041/73 Heading H3A A timing correction system for the synchronizing pulses of a video signal on line 12 comprises: a tapped delay line 11; means for comparing the signal at each tapping point with a reference timing signal from source 16; and means for connecting to an output 19 that tap at which a synchronizing pulse first occurs after a reference timing pulse. The video signal is fed to the delay line via a clamp circuit 46 which clamps the average sync pulse level to a reference level. The reference pulses enable gates 20 associated with each tapping point, e.g. 22, 41, and the next synchronizing pulse to occur at one of the tapping points is fed via the associated sync pulse detector 13, the associated gate 20 to set the associated bi-stable 24. The output Q from the set bi-stable is fed to the D input of an associated switch 18 and also via OR gate 29 to a generator 28 which produces an inhibit signal for AND gates 23, thus preventing any further pulses at the tapping points from reaching the bi-stables. Generator 28 also provides signals on the clock inputs of switches 18 to switch them to the state determined by their respective D inputs. Thus the switch 18 coupled to the set bi-stable 24 is also set actuating an associated switch 17 which connects the relevant tapping point to the line 19. All other switches 18 are switched to the reset state. In order to prevent errors when tap changing, a synchronizing pulse on line 12 closes gate 33 to prevent the signal on line 19 reaching output 21. The gate is only opened when it receives a signal on line 31 indicating that a tap has been selected, or when it receives a signal on line 36 indicating that the video signal has reached the end of the last section of the delay line. If the signal is too far out of synchronization for any switch 18 to be operated, gate 38 is enabled to produce an output which arbitrarily connects the central tap. Hard clamp.-The output from gate 33 is fed via a clamp circuit 47 shown in Fig. 3. During each sync pulse period the video signal at 62 is compared with the clamp reference signal to produce a two-state output depending on whether it is above or below the reference. This connects either a positive or a negative current source 66 or 67 to the point 62 to correct the level. If the correction changes the signal at 62 from being negative to positive, a time constant circuit (87, Fig. 4, not shown) inhibits the connection of source 67 so that the final clamping is slightly positive.
Patent GB-721621-A (GB)
Title: Improvements in and relating to graded gas-tight seals
IPC: C03C27/00
Filed: 1952-06-16
Abstract: 721,621. Quartz-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. June 16, 1952 [June 19, 1951], No. 15087/52. Class 36. [Also in Group XL (a)] A method of making, particularly for a highpressure mercury discharge lamp, an electrically conducting gastight quartz stem tube including an electrical conductor made up of current lead wires 3, 4 extending from a molybdenum ribbon foil 2, consists in shaping an outer quartz tube 10 with a necked portion 11, covering the wires 3, 4 with metal foil 9, positioning about the foil 2 a vitreous spacer tube 15 of lower (e.g. about 200‹ C. lower) softening temperature and a higher (e.g. about twice) coefficient of expansion than quartz, inserting the conductor 2, 3, 4 and spacer tube 15 in the outer tube 10 with the wire 3 and foil 9 positioned in the necked portion 11 and with one end of the tube 15 butting against the necked portion, inserting in the tube 10 and into butting position against the tube 15 an inner tube 13 having a small bore end 12 closely surrounding the wire 4 and foil 9, heating and collapsing the portion of the tube 10 overlapping the tube 12 while maintaining a non-oxidizing atmosphere, e.g. nitrogen, within the tubes, evacuating and sealing the tube 13, heating and collapsing the portion of the tube 10 around the tube 15 and heating the portions of the composite tube surrounding the foil covered portions of the wires 3, 4 to form a joint between the wires and composite tube. The spacer tube 15 may consist of material known under the Registered Trade Mark " Vycor 7911 " and which contains approximately 96 per cent silica and has a coefficient of expansion lower than that of the molybdenum foil 2. As shown in Fig. 3, the foil 2 has its corner portions cut to form tabs 5, 6 which are folded over the wedge-shaped end 7 of the wire 3, and similarly for the wire 4. The tabs 5, 6 are welded to a flat side of the ends of wires 3, 4 and the portion of the foil 2 between each pair of tabs 5, 6 is welded to the other flat side of the wire ends. One or more transverse notches or slots 21 may be provided along the wires 3, 4 to key the wires to the surrounding quartz and prevent relative longitudinal or rotary displacements. With the above construction molybdenum foils with a thickness of up to about 0.004 inch have been used with high pressure lamps. A stem incorporating current leads 0.08 inch in diameter and a molybdenum foil 0.5 inch long, <SP>3</SP>/ 16  inch wide and etched to a thickness of 0.0023 inch at the longitudinal centre line with a tolerance of Œ0.0002 inch can be used.