baber/WOPTO huggingface dataset:
Patent GB-503112-A (GB)
Title: Improvements in high-pressure mercury-vapour electric discharge devices
IPC: H01J61/073
Filed: 1938-01-04
Abstract: 503,112. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen) Jan. 4, 1938, No. 205. [Class 39 (i)] In a high-pressure mercury-vapour discharge device of the type in which (1) each electrode that acts as a cathode during the discharge is thermionic and heated in operation by the discharge only (2) the inter-electrode distance exceeds the greatest diameter of the envelope at a plane midway between the electrodes and (3) the vapour pressure of the mercury in full operation exceeds 5 atmospheres, each such electrode is in close contact with the end wall of the envelope so that transference of heat between electrode and wall is substantially independent of the presence of liquid mercury, arid the amount of mercury within the envelope is so small that it is all evaporated in full operation. The electrode may be a perforated tungsten canister or closed tungsten helix filled with alkaline earth, mounted in close contact with or sunk into the end wall of the envelope and having a very narrow gap between it and the side walls of the envelope. Alternatively, it may comprise two helices 5, Fig. 3, enclosing the alkaline earth 6 and held in a molybdenum cup 8<1> tightly fitting the end of the envelope. The discharge chamber of the device may be narrower than the part holding the electrode and may be cooled. The electrode chambers may be protected from the cooling medium by a coating or by quartz sleeves 11, Fig. 7. In manufacture the electrodes 3 are first welded to the leads 4 sealed into the quartz rods 9; the discharge chamber 2, which is not less than 5 mm. in internal diameter, is then sealed to the two rods, and the sleeves 11 to shoulders 12 formed on the outside of the envelope. The device is adapted to operate at 80 atmospheres pressure, and may contain other gases besides mercury.
Patent GB-960017-A (GB)
Title: Method and means of adding hydrophobic images to the hydrophilic surface of offset printing plates
Inventor: HERRICK CLIFFORD ERNEST
IPC: C09D11/10
Filed: 1962-01-03
Abstract: 960,017. Photomechanical printing plate procedure. GENERAL ANILINE & FILM CORPORATION. Jan. 3, 1962 [Jan. 9, 1961], No. 273/62. Heading G2M. Additional hydrophobic images are applied manually using an ink comprising an alkali-soluble hydrophobic polyvinyl compound to the hydrophilic portions of offset plates produced photographically as by the procedure of Specification 784,001, such portions comprising the hydrolysed surface of a vinyl alkyl ether/maleic anhydride copolymer coating. Compounds exemplified for the purpose are the copolymer of vinyl acetate and crotonic acid, and PVM/MA, each in a specified solvent mixture to dry within 30 seconds and leave the plates ready for use.
Patent GB-1481173-A (GB)
Title: Curing agents for epoxy resins
IPC: C08G59/68
Filed: 1974-01-03
Abstract: 1481173 Curing epoxy resins SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 20 Dec 1974 [3 Jan 1974] 279/74 Heading C3B An epoxy resin (E) is cured by reaction with an aliphatic or cycloaliphatic polyamine (P), having # primary and/or secondary amino group, in the presence of an accelerator (A) being R-NH-CO-NH-R 1 , where: R is R 2  is C 1-4  alkyl, Cl, or Br; n is 0-2; and R 1  is R or H. (E) may be a polyglycidyl ether of Bisphenol A or F, and may be mixed with glycidyl ester(s) of saturated aliphatic monocarboxylic acid(s) or cresyl glycidyl ether. (A) may be mono- or di-phenyl urea. (A) may be added to (E) as a solution in (P). There may be 0À02- 0-07 moles (A) per 100 g. (E).
Patent GB-166083-A (GB)
Title: Improvements in ladies' and children's dresses
IPC: A41D1/22
Filed: 1921-01-04
Abstract: 166,083. Shanks, M. Jan. 4, 1921. Dresses.-An adjustable dress for women and children is provided with a front central inverted box pleat c extending from the neck to the bottom of the garment and held by ribbon &c. E passed through eyelets c' in the outside edges of the pleat. The hem of the dress has a tuck which can be let down and the, sleeves can be lengthened by turning down the cuffs.
Patent GB-564358-A (GB)
Title: Improvements in or relating to detachable drill bits and the like
IPC: E21B17/04
Filed: 1943-01-07
Abstract: 564,358. Percussive drills. BOWER, A. H. Jan. 7, 1943, No. 308. [A Specification was laid open to inspection under Sect. 91 on Jan. 12, 1943]. [Class 124] In a percussive drill in which a detachable bit A is secured to a drill rod P by means of a non-circular shank on one part engaging a correspondingly shaped socket or sleeve B on the other part, the two interengaging parts are detachably secured together by one or more spiral spring clips K, each of which is located in a slot C in the socket or sleeve part and has a portion which engages in a slot G in the inserted part. The ends of the slot G receive the ends M, N of the clip, whilst a cross-bar N engages a subsidiary slot J. A water passage Q is provided.
Patent GB-705838-A (GB)
Title: New bactericidal substances
Inventor: ROSE FRANCIS LESLIE
IPC: C07C279/26
Filed: 1951-02-05
Abstract: The invention comprises substances of the formula <FORM:0705838/IV (b)/1> wherein A stands for a phenyl radical which is substituted by alkyl, alkoxy, nitro or halogen wherein the two A's may be the same or different, n is an integer from 3 to 9 inclusive, and the polymethylene chain may be interrupted by oxygen atoms and/or aromatic nuclei.  They may be prepared by interaction of a polymethylene bisdicyandiamide of the formula <FORM:0705838/IV (b)/2> with one or more amines of the formula ANH2, or by the interaction of a polymethylenediamine of the formula NH2-[CH2]n-NH2 with a dicyandiamide of the formula A-NH-C(:NH)-NH-CN.  The products have antibacterial activity and may be used for the sterilization of instruments and body tissues, as additions to wood pulp to prevent decay, as preservatives for rubber latex, as moth-proofing agents, or in the control of slime in paper mills.  In examples (1) hexamethylene bis-dicyandiamide and p-chloraniline hydrochloride are reacted to give 1:6-di-(N1:N11-p-chlorophenyldiguanido -N5:N51)-hexane dihydrochloride; (2) the same compound is prepared by reacting p-chlorophenyldicyandiamide and hexamethylene diamine dihydrochloride; (3) (8) to (10) and (12) toluidine, p-anisidine, m-chloraniline, 2:5-dichloroaniline 3:4 - dichloroaniline and m - nitro - aniline respectively are employed in place of the p-chloroaniline of (1) to give the corresponding 1:6-di-(N:N1-substituted phenylguanido-N5:N51)-hexane; (4) to (7) 1:3-di-(N1:N11-p-chlorophenyldiguanido -N5:N15)-propane, 1:4 - di - (N:N1 -p-chlorophenyldiguanido - N5:N51) - butane, 1:5-di-(N:N1-p-chlorophenylphenyldiguanido - N5:N51) - pentane, and 1:7 - di - (N1:N11 - p - chlorophenyldiguanido - N5:N51) - heptane are prepared as their p  dihydrochlorides by reacting p-chloro-aniline hydrochloride and tri-, tetra-, penta- and hepta-methylene bis-dicyandiamide respectively, (11) o :o 1-di (N1: N11 - p - chlorophenyl - diguanido - N5:N51) - 1:4 - di - n - propoxybenzene dihydrochloride is prepared by reacting 1:4-di-n-propoxybenzene-o :o 1 - bis - dicyandiamide and p - chloraniline hydrochloride.ALSO:Compounds of the formula A-NH-C(:NH)-NH-C(:NH)-NH(CH2)n-NH-C (:NH)-NH-C(:NH)-NH-A wherein A stands for a phenyl radical which is substituted by alkyl, alkoxy, nitro or halogen, wherein the two A's may be the same or different, n is an integer from 3 to 9 inclusive and the polymethylene chain may be interrupted by oxygen atoms and/or aromatic nuclei, have bactericidal properties and may be added as preservatives to rubber latex.  Exemplified are compounds where A is a p-chlorophenyl, p-tolyl, p-methoxyphenyl, m-chlorophenyl, 2 : 5-or 3 : 4- dichlorophenyl or a m-nitroaniline radical, and (CH2)n is a tri-, tetra-, penta-, hexa-, or hepta - methylene group or a w : w1 p-di-n-propoxy-benzene group. The preparation of such compounds is described (see Group IV (b)).
Patent GB-1082732-A (GB)
Title: Phosphors
IPC: C09K11/66
Filed: 1965-01-05
Abstract: A scintillation luminescent material comprises a transparent, optically integral, crystalline calcium iodide activated by tin, in the range 10 to 400 p.p.m. by weight.  The crystal may be prepared by zone cooling a dried, activated, material, and emits green light, 3,500-6,000 <\>rA, upon gamma-ray excitation (e.g. Co60).  The phosphor, which is deliquescent, may be mounted in a sealed metal case, with a glass or quartz window, or for radioscopic purposes a mosaic of crystals (e.g. 0.003 inch thick) may be mounted, side-by-side, the crystals being optically isolated by light-reflective partitions, and the assembly having a metal case and a transparent, e.g. epoxy resin, window.  Other scintillator materials referred to are thalliumactivated sodium, calcium and caesium iodides and thallium-activated potassium and caesium bromides, europium-activated calcium iodide, and unactivated calcium iodide.  The scintillator may be optically coupled to a photo-multiplier window, or mounted adjacent a photographic film. The phosphor has a decay time of 0.5 microseconds, or less.  The phosphor is transparent down to 3800 <\>rA, but is fluorescent at wavelengths up to about 3650 <\>rA, and is useful as a scintillator for energies as low as 33 Kev.
Patent GB-1213612-A (GB)
Title: Process for producing aliphatic and cycloaliphatic alcohols
Inventor: DAUN GERHARD
IPC: C07C255/45
Filed: 1969-01-02
Abstract: 1,213,612. Aliphatic and cycloaliphatic alcohols. DYNAMIT NOBEL A.G. 2 Jan., 1969 [2 Jan., 1968], No. 374/69. Heading C2C. Aliphatic and cycloaliphatic alcohols are prepared by treating a solution of the appropriate aliphatic or cycloaliphatic aldehyde in a monohydric C 1-5  alcohol and optionally, an inert organic diluent, with liquid sodium and/or potassium amalgam in a manner such as to reduce the aldehyde to the required alcohol. Examples of suitable aldehydes for use in the preparation are acetaldehyde, propionaldehyde, butyraldehyde, valeraldehyde, oenanthaldehyde, isobutyraldehyde,isovaleraldehyde, 2-ethylhexanal and pivalic aldehyde; and cyclopentane, cyclopentene, cyclohexane and cyclohexene carboxaldehydes, Aldehydes which are substituted by one or more hydroxyl, alkoxy, dialkylamino, carboxyl or nitrile groups may also be used, lactones possibly being formed when an aldehyde carboxylic acid is reduced initially to a hydroxy carboxylic acid, but otherwise the additional substituent group(s) is/are not affected by the reduction.
Patent GB-786075-A (GB)
Title: Improvements in or relating to method of and composition for cleaning boiler tubes
IPC: F27D25/00
Filed: 1955-01-06
Abstract: 786,075. Cleaning metals; coating with zinc. KILKENNY, J. D. Jan. 6, 1955 [Sept. 7, 1954], No. 397/55. Class 82(2) In a method of cleaning products of combustion from and inhibiting the further deposit thereof on, the tubes of a boiler. a composition, comprising a borax solution and powdered zinc, forming a mixture which is held in uniform suspension by mechanical agitation, is introduced into the flame of a firebox for vaporization therein. the solution acting as a flux to assist the zinc particles to penetrate the deposit and coat the said tubes. The composition may be composed of equal amounts, by weight, of zinc dust and borax, admixed with sufficient water to provide a saturated borax, solution. There may be added, each in amounts equal to the amount of borax, sodium chloride, ammonium sulphate and oxalic acid. As shown the composition maintained agitated in tank 20 is sprayed through nozzle 15 into the firebox 5 of a boiler, the nozzle being above, and adjacent to, the discharge end of fuel nozzle 8 so that the composition is sprayed directly into the flame in the firebox.
Patent GB-574175-A (GB)
Title: Improvements in or relating to ice skates
IPC: A63C3/08
Filed: 1944-01-08
Abstract: 574,175. Ice skates. SIM, W., and SHIELDS, K. M. Jan. 8, 1944, No. 402. [Class 132 (i)] The forward extremity of the blade 1 is formed with a depending spike 2 and, at a short distance behind the spike, an inwardly projecting tooth 4 having a plane underface and a forward vertical face to form a transverse edge 5. The tooth is chamfered at the free end and at the other end is chamfered to form a sharp corner. The lug 3 associated with the spike 2 limits penetration of the latter.
Patent GB-112051-A (GB)
Title: Improvements in or relating to Induction Coils or Transformers.
Inventor: CODD MORTIMER ARTHUR
IPC: H01F27/32
Filed: 1917-01-09
Abstract: 112,051. Codd, M. A. Jan. 9, 1917. Transformers. - The sections of the secondary winding of an induction coil are completely enclosed in casings formed by two co-axial cylindrical parts A, B, the former A having an internal flange A<1> and the latter B having aa external flange B<1>. The casings formed in this way may be threaded on the insulating tube of the coil so that similar parts of adjacent casings are in contact, or, as shown in Fig. 4, dissimilar parts of adjacent sections may be placed together, the conducting joints between the windings being in the spaces between the flanges A', B<1>.
Patent GB-508958-A (GB)
Title: Improved device for use in playing piano-accordions
IPC: G10D11/02
Filed: 1938-01-07
Abstract: 508,958. Music. CROSS, A. E. Jan, 7, 1938, No. 471. [Class 88 (ii)] A device for indicating harmonizing notes and chords on a piano-accordion consists of two cards or the like A<1>, Fig. 2, and A<2>, Fig. 8, attached by cords adjacent the treble (piano) and bass keyboards respectively. Card A<1> bears differently coloured rows of signs D, each row indicating notes composing a chord. Card A2, which is viewed in a mirror, also bears rows of signs D<3>, each row being coloured in agreement with a row on card A<1>, to indicate suitable basses. Certain of the chord-indications on card A<1> may be masked by a shield when desired. According to the Provisional Specification, the bass indicator may be attached to the treble indicator, and the colours may be on a slide movable for transposition, the whole appliance being movable.
Patent GB-101892-A (GB)
Title: Improvements in Leather or other like Waist Belts.
Inventor: GREEN CHARLES
IPC: A41F9/00
Filed: 1916-01-12
Abstract: 101,892. Green, C. Jan. 12, 1916. Drawings to Specification. Purses are made from blanks, the ends of which iesemble links so that they may be incorporated in the length of a belt made of similar links.
Patent GB-1504222-A (GB)
Title: Aircraft glide slope warning system
IPC: G01C5/00
Filed: 1976-01-07
Abstract: 1504222 Aircraft warning indicators SUNDSTRAND DATA CONTROL Inc 7 Jan 1976 [13 Jan 1975] 00520/76 Heading B7W A system for warning the pilot when the aircraft has deviated below a glide slope radio beam generates an advisory warning when the aircraft has entered a low-risk envelope 10, Fig. 1, in terms of glide slope deviation G/S and aircraft altitude H R , and generates a command warning when the aircraft has entered a high-risk envelope 12. The altitude signal h R  is biased at a summing junction 20, Fig. 2, and the resultant signal is applied to a limiter 22 which limits the output to a maximum of zero for altitudes above 150 feet. The limited signal is supplied to scaling amplifiers 24, 52 and combined with the deviation signal at summing junctions 26, 54. Detectors 28 and 56 generate logic ON signals when the sum of the signals at 26 and 54 are greater than 1À0 and 2À0 dots, respectively, and supply the logic signals to AND gates 32, 34 of the advisory warning and AND gate 60 of the command warning. Two inputs to the AND gate 60 inhibit the command warning when the advisory warning is not operative and when the altitude is greater than 300 feet. Inputs to the AND gate 32 inhibit the advisory warning when the crew wishes to over-ride the system, when the altitude is greater than 1000 feet, when the aircraft is not using an ILS system (input 38), and when the glide slope signal is not valid. Inputs to the AND gate 34 inhibit the advisory warning when the altitude is less than 50 feet and when the aircraft is in a particular configuration (input 42), e.g. when the landing gear is down.
Patent GB-145365-A (GB)
Title: Method of and apparatus for measuring the heights of superposed liquids of varying specific gravities
IPC: G01F23/16
Filed: 1920-01-07
Abstract: 145,365. Thomas, R. G. Jan. 7, 1920. Indicating separation level of superposed liquids. -Apparatus is provided for indicating the heights of superposed liquids of different specific gravities when the receptacle containing the liquids is inaccessible, such as in the case of fuel-oil tanks for ships, in which the oil is displaced by water. Oil is supplied to the tank through the valve-controlled pipe Z, and is displaced by water supplied through the valve-controlled pipe W. A vertical pipe B projects nearly to the bottom of the tank and a valve-controlled branch C opens into the top of the tank. Air under pressure may be applied through the pipe D and a vent valve m is provided. When the apparatus is to be used, the valve c is opened so as to ensure that the line of separation of water and oil is at the same level in the pipe B as in the tank, the surface level of the oil in the pipe B corresponding with the supply pressure. Air pressure is then applied through the pipe D till the level of the oil in the tube B falls to the marked point e. The valve c is then closed and the valve m opened until the liquid is forced up the pipe B, and the surface level reaches the point e<1>. The height of the column g is then equal to g<1>, the points e<1> and o being fixed permanently for that purpose. The column h is transferred to h<1> and the line of separation of the water and oil is indicated at the point e<2>. The depth of oil in the tank is thus equal to h<1>. If the gauge tube is at some distance from the oil tank, the use of a very long gauge tube is avoided by providing an enlargement in the tube to contain the larger volume of liquid, which is forced upwards from the tube connecting the tank to the gauge tube.
Patent GB-1125116-A (GB)
Title: Tension fabric for papermaking machines
IPC: D21F5/18
Filed: 1967-01-04
Abstract: 1,125,116. Drying web material. HUYCK CORP. 4 Jan., 1967 [11 Jan., 1966], No. 607/67. Heading F4G. A drying apparatus for fibrous webs, e.g. paper, 10 comprises steam-heated cans or cylinders in upper and lower rows, 38, 56, 58 and 18, 26, 30 respectively against which the web is constrained at a predetermined tension by dryer felts or fabrics 40, 20, 60 which are tensionable by adjustable rollers respectively and one or more drier cylinders 50 to the interior of which heated gas or air is supplied for outward flow through its perforated periphery and through the web and separate tensioning felt 80 for both drying and scavenging.
Patent GB-370448-A (GB)
Title: Improvements in and relating to the cross supports of machine tools
IPC: B23B47/14
Filed: 1931-01-07
Abstract: 370,448. Lever linkages; controlling reversing-gearing. SCHIESS-DEFRIES AKT.-GES., 114, K÷lnerstrasse, Diisseldorf, Germany. Jan. 7, 1931, No. 636. Convention date, Feb. 27, 1930. [Classes 80 (ii) and 80 (iii).] In a control device for the reversing-gear of a tool-slide traversing mechanism in a machine tool, a hand-lever 5 is pivoted at 4 within an axial slot 6 in a spindle 2 and carries a square block 7 movable along a. slot 3a in a yoke 3 which is secured to the two coaxial parts of a spindle 1 at right-angles to the spindle 2. The spindles 1, 2 may be in the same or in different planes. Levers 8, 9 fast on the spindles 2, 1, respectively, are connected to the reversing gears for the two perpendicular traversing mechanisms of the tool-slide, so that oscillation of the lever 5 about the spindles 1 or 2 will cause the slide to be fed in the same direction. Compound feed may be given to the slide by oscillating the lever 5 about both spindles simultaneously.
Patent GB-370061-A (GB)
Title: Improvements in or relating to electric plug-and-socket connections
IPC: H01R13/115
Filed: 1931-01-07
Abstract: 370,061. Plug couplings. HOMBERGER, E., 36, Gerard Road, Harrow, Middlesex. Jan. 7, 1931, No. 639. [Class 38(1).] A socket 11 made resilient by a longitudinal slit 17 is strengthened by a longitudinal rib 12 that forms a current carrying connection to the terminal. The rib is partly cut away by a bore 14 opening into the socket and intersecting a transverse cut 15. In a modification, Fig. 6, the rib 24 is produced by turning the socket from a blank of the section shown, leaving a lug 21 to form a terminal. The longitudinal slit 25 in this case is adjacent the rib and the bore 14 may be dispensed with. In other modifications the bore 14 may be carried right through to receive a fixing screw from below, or a cylindrical spring may surround the socket or bridge the slit 17, its ends engaging behind projecting lips at each side of the slit.
Patent GB-672026-A (GB)
Title: Improvements in or relating to thermopiles
Inventor: ROGERS EDWARD
IPC: G01J5/12
Filed: 1950-01-10
Abstract: 672,026. Thermoelectric batteries. ELLIOTT BROS. (LONDON), Ltd. Jan. 10, 1951 [Jan. 10, 1950], No. 651/50. Class 53. A thermopile for a radiation pyrometer in which the hot junctions are made by plating wires with a second metal is provided with an insulating frame 1 having a central aperture 2 across which the wires are stretched, the hot junctions lying at the centre of the aperture. The cold ends of the wires are connected to massive metal pieces 5a on the opposite side of the frame which is not exposed to the radiant heat. Fig. 3 shows a front view of the thermopile.. Two sets of wires 18a, 19a are soldered to pins 14a, 15a which pass through openings in the frame and are connected to the arcuate metal pieces 5a, 6a and terminal members 11, 12, all the conductors being connected in series. The wires are soldered together to form the hot junctions where they cross at the centre of the frame. The wires may be made of constantan and may be plated with silver by dipping the frame edgewise in an electroplating bath so that the solution reaches the diameter AA. The wires may finally be given a black coating.
Patent GB-729592-A (GB)
Title: Improvements in or relating to apparatus for the electrical precipitation of suspended particles from gaseous fluids
Inventor: RICHARDS DAVID HESKETH
IPC: B03C3/41
Filed: 1953-01-12
Abstract: 729,592. Electrostatic precipitation. LODGECOTTRELL, Ltd. Jan. 11, 1954 [Jan. 12, 1953], No. 923/53. Class 39 (1). A discharge electrode for an electrostatic precipitator comprises an electrically conductive non-discharging tube or rod 1 located between and carrying a pair of spaced electrically conductive thin strips 2, the edges of which serve as discharge members. The strips are arranged face to face and are secured to the tube or rod 1 by electrically conductive spacer elements 3. The ends of the strips may be rounded or tapered. Several pairs of strips may be provided on the tube or rod 1, or continuous discharge strips may be waisted at selected points, for example in the case of flat collecting electrodes arranged as pairs of plates with outwardly flared upper edges forming dustcatching pockets, opposite the dust-catching pockets.
Patent HK-72794-A (HK)
Title: Magnetic tapecassette
Inventor: KENJI KAWAKAMI
IPC: G11B23/087
Filed: 1994-07-28
Abstract: A magnetic tape cassette for use in a magnetic recording/reproducing apparatus has a sliding plate (10) provided on a lower surface (3b) to selectively cover and expose insertion apertures (5,6) that open into the interior of the cassette. A front lid (9) is provided which may be pivoted to either expose or cover a front opening (1a) in the cassette through which tape (7) may be withdrawn for a recording/ reproducing operation. When the front lid (9) is in its closed position and the sliding plate (10) covers the insertion apertures (5, 6), the front lid (9) is locked in its closed position. The magnetic tape cassette is thereby closed to prevent dust, oil and other contaminants from damaging the magnetic tape (7) within.