baber/WOPTO huggingface dataset:
Patent GB-692442-A (GB)
Title: Improvements in or relating to electrodes for electric glass melting furnaces
IPC: H05B3/03
Filed: 1950-09-14
Abstract: 692,442. Electric glass furnaces; electrodes. GENERAL ELECTRIC CO., Ltd., ADAMS,. 0., and PARTRIDGE, J. H. Sent. 12,1951 [Sept. 14, 1950], No. 22655/50. Class 39(iii) An electrode for mounting in an aperture in a wall of a glass melting furnace for passing current through the molten glass is. composed of molybdenum or tungsten and the outer part 2 projecting through the furnace wall 3 carries a sheath 8 of metal. which does not melt or oxidize at the glass melting temperature, e.g. platinum, the sheath 9 being integrally bonded at least at its outer end to the electrode, so that in use the surface of the outer part of the electrode liable to oxidation is hermetically sealed from contact with the air. The whole of the sheath may be integrally bonded, e.g. by welding to the electrode, or the sheath is integrally bonded to each end of the outer part of the electrode. The. sheath comprises a noble metal of high M.P. and. may extend for an appreciable distance over the inner part of the electrode, to which it is hermetically sealed by the flow of molten glass. The sheath 8. may be a tube of platinum drawn to fit closely to the surface of the outer part of the electrode and may be welded thereto at least at its outer end which has a water cooling jacket 5. The outer rod part 2 of the electrode is welded or screwed into the larger inner part 1. Specifications 587,573 and 664,121 are referred to,.
Patent GB-1177870-A (GB)
Title: Improvements in or relating to Valves
IPC: B65D83/14
Filed: 1968-05-14
Abstract: 1,177,870. Dispensing liquids under gaseous pressure. AFA CORP. OF FLORIDA. May 14, 1968 [May 15, 1967], No. 22794/ 68. Heading F1R. A snap-acting dispensing valve for a pressurized dispensing container comprises a spring-loaded valve member 56 having a through-bore which, on depression of the valve member, communicates with the container dip tube, the snap-action being provided by a straight portion 78 of a spring 62, portion 78 being biased against the valve member and engaging under a shoulder 80 when the valve member is depressed, until sufficient pressure is applied to force portion 78 to one side, whereupon rapid downward movement of the valve member takes place. On release of the valve member, spring portion 78 assists the rest of the spring to provide a rapid closure of the valve. In Fig. 1, a side orifice 64 in the valve member is controlled by a sealing washer 52. In Fig. 5, the sealing washer 152 has a slit 166 which opens when the valve member is depressed, and connects end orifice 164 in the valve member with the container interior via dip tube socket 44.
Patent GB-317440-A (GB)
Title: Improvements in the manufacture of electric cables
IPC: H01B13/30
Filed: 1929-07-25
Abstract: 317,440. Kabelfabrik-und Drahtindustrie Akt.-Ges. Aug. 16, 1928, [Convention date]. Cables and conductors, machines, apparatus, and processes for making. - Means for impregnating electric cables and conductors in a vacuum comprise a container which can be exhausted, the cables being placed in small vessels within the container, and covered with impregnating oil. The container is exhausted, the vessels filled, the container again exhausted and the vessels are then heated. In the embodiment, a container a is formed with a detachable lid c and carries, in frames, annular vessels b', b<2> and a circular vessel b<3> for the cable coils r', r<2>, r<3>. The coils r<1> are mounted on drums o. Heating coils h are provided inside the container as shown. Air is exhausted from the container through a pipe d.
Patent GB-239376-A (GB)
Title: Improvements in instruments for defining the vertical
IPC: G01C9/14
Filed: 1924-09-29
Abstract: 239,376. Barr & Stroud, Ltd., and French, J. W. Sept. 29, 1924. Levels and clinometers.-Apparatus for defining the vertical, particularly on moving bodies, comprises a light pendulum or its equivalent or both, mounted within a liquid-filled spherical chamber, the interior of which is free from surface projections and obstructions. In the form shown the chamber is in two parts 1, 2 connected by a joint 3, the interior of the chamber being made smooth as by polishing and plating. Across a diameter is attached a fine wire &c. 4 fixed at one end 5 to the chamber and tautened at the other end by a spring 6. Attached at the centre of the wire 4 by a fine wire 8 is a float 7 : a flexible connection, such as a loop of silk, may be interposed between the end of the wire 8 and the wire 4, movement of the loop along the wire being prevented by small balls 13 strung on the wire. At the top of the chamber is an observation window 9, and expansion chambers 10 for the liquid in the chamber 1 may be provided. When the instrument is used on a body such as an aeroplane which is subject to radial acceleration the window 9 may be marked with concentric circles which are numbered in accordance with the radii of the circular paths of the aeroplane, so that when the wire 8 intersects the appropriate circle the centre of the circles will correspond to the true vertical.
Patent GB-862854-A (GB)
Title: Method of etching magnesium and magnesium base alloys
IPC: C23F1/22
Filed: 1959-07-03
Abstract: 862,854. Etching. DIVERSEY (U.K.) Ltd. July 3, 1959 [Sept. 12, 1958], No. 22887/59. Class 100(2) A method of etching magnesium or magnesium base alloys comprises treating the metal with an aqueous etching solution comprising sulphuric acid and a small amount of a sulphonated organic material selected from the group consisting of xylene sulphonic acid, toluene sulphonic acid, alkyl aryl polyether sulphonic acids, sulphonated oleic acid, the soluble metal salts of such acids, and mixtures thereof. The salts may be the sodium, potassium or lithium salts. The etching bath contains 10-40 grams sulphuric acid per 100 ml. of solution. Magnesium sulphate may be added to a fresh bath, or a portion of an exhausted bath containing the sulphate be incorporated therein, since etching is improved by the presence of the sulphate up to 70 grams/ 100 ml., expressed as MgSO 4 -7H 2 O. The temperature of the bath in use varies from 70‹F.-220‹F.
Patent GB-681176-A (GB)
Title: Improvements in or relating to fluorescent screens
IPC: G21K4/00
Filed: 1949-09-06
Abstract: 681,176. Luminescent applications. SHEPHERD, G. R. (Westinghouse Electric International Co.). Sept. 6, 1949, No. 23068/49. Drawings to Specification. Class 39(i) The spaces between the crystals of the phosphor in an X-ray fluorescent, screen contain an alkali halide from the group caesium iodide, caesium bromide, rubidium iodide, caesium chloride, potassium iodide, sodium iodide, rubidium bromide and rubidium chloride, the alkali halide being present in an amount between 0.1 and 0.35 mol. fraction of the mixture of phosphor and alkali halide. The powdered form of the addition agent may be shaken with the phosphor or applied to the phosphor by coating or simple admixture but an increase in the thickness of the screen layer is avoided by flowing a solution of the addition agent over the surface so that it penetrates the spaces between the crystals, the solvent, e.g. water, being subsequently evaporated. Alternatively, the addition agent is admixed with a binder, e.g. potassium silicate, which is mixed with the phosphor before deposition on the screen. Calcium tungstate, zinc sulphide and zinc cadmium sulphide are instanced as suitable X-ray phosphors.
Patent GB-1064651-A (GB)
Title: Hydraulic power transmission apparatus
Inventor: DOWTY GEORGE HERBERT
IPC: B60K17/10
Filed: 1964-06-04
Abstract: 1,064,651. Hydrostatic transmission. DOWTY TECHNICAL DEVELOPMENTS Ltd. May 24, 1965 [June 4, 1964], No. 23126/64. Heading F2C. An hydrostatic transmission for a tractor comprises tilting head pump and motor units 2, 26 in a casing 36 which forms a reservoir and the pump 2 is geared at 43, 44 to an input shaft 42 which extends through the casing and forms a first (power take-off) output shaft whilst the motor 26 drives a second output shaft 35. The motor unit comprises two motors 24, 25 in parallel, the cylinder blocks 28, 29 of which are formed in a common head 26 tiltable about pivots 27. The motor output shafts 22, 23 are geared to the second output shaft 35. The pump and motor heads are connected by links 19, 20 for conjoint tilting movement effected by a servomotor 45 (Fig. 2, not shown). Two input driven gear-type pumps 49, 52 respectively supply high pressure fluid for accessories and make-up fluid.
Patent GB-480596-A (GB)
Title: Improvements in tea, coffee or like infusers
IPC: A47G19/16
Filed: 1936-08-22
Abstract: 480,596. Infusers. ALEXANDER, F. J. E. Aug. 22, 1936, No. 23143. [Class 129] The cover portion of an infuser, which may be fixed to the base portion by a bayonet joint, is made of gauze 14, Fig. 2, or of perforated material, 14, Fig. 5, covering a gauze strainer 24. The base portion may have a series of fine perforations 11 or a strainer 19 either at the top of tube 21, Fig. 4, or mounted in the side wall. A handle 17 may be screwed into the knob 15 and interchangeable handles of differing lengths may be provided. Reference has been directed by the Comptroller to Specifications 14391/86, 15345/91, 20195/92, 6991/95, 8416/95, 12595/96, 23517/97, and 10758 /12, [all in Class 129].
Patent GB-598773-A (GB)
Title: Apparatus for use in bulk-testing the capacity of bottles and other liquid containers
IPC: G01F17/00
Filed: 1945-09-10
Abstract: 598,773. Measures of capacity. CANNING TOWN GLASS WORKS, Ltd., and PARNABY, J. J. Sept. 10, 1945, No. 23245. [Class 106 (v)] In making a sample test of the capacities of a large batch of bottles, a predetermined number is taken from the batch, filled and then emptied into a measuring flask 2 having levelling means 13 and provided with an indicating tube 6 adjacent which are set indicators 9, 10, the indicators being adjustable to compensate for temperature changes. If the height of liquid in the flask lies between the indicators, the joint capacity of the selected samples is within the permitted limits. The indicators 9, 10 are individually adjustable on a tube 8 itself adjustable along a rod 7 to correct for temperature variations measured by a thermometer 11. The flask is fitted with a removable funnel 4, an anti-splash ring 5, a spirit level 14 and a drain cock 4.
Patent GB-1455241-A (GB)
Title: Wheelchairs
IPC: B62B7/08
Filed: 1972-05-18
Abstract: 1455241 Wheelchairs; hand propulsion C RAMSHAW 14 Aug 1973 [18 May 1972] 23344/72 Headings B7B and B7E A wheelchair including a frame has at least one endless belt 20 associated with each of a pair of drive wheels 2, a portion of the belt being located adjacent the seat 7 to be moved by the occupant lengthwise of the wheelchair. The belt is preferably moved by the hand of the occupant but may be moved, for example, by a pulley driven by a hand crank or by a reciprocating lever carrying a ratchet device. The belt may be a toothed belt, or a V-belt. In a preferred embodiment, Fig. 1, each side of the chair frame is of tubular construction and comprises two struts 5, 6, a seat member 7 with idler pulleys 17, 18, arm rest 8 and back member 9, the two side frames being linked by transverse tubular members. The base frame 1 has a pair of driving wheels 2 and a pair of castor wheels 3 mounted under subframe 4. An endless toothed belt 20 runs over pulleys 17, 18 and meshes with sprocket 19 formed integrally with each drive wheel 2. To fold the chair the frame is swung backwards about pivot 10 thus releasing bottoms of struts 6 from retaining members 11, and the seat member 7 is folded towards back member 9 so that the frame may lie flat upon base frame 1. In another embodiment, Fig. 2, the frame comprises a pair of vertical supports 21, 22 linked by seat members 23 and arm rest 24. A belt 34 passes round one channel of a double idler pulley 33 and sprocket wheel 19, and another belt 35 passes round pulley 17 and the other channel of double pulley 33. The double pulleys 33 may have channels of different diameters to provide an increased or decreased velocity ratio, and may be replaceable by pulleys of alternative ratios. A two part strut 27 is first disconnected at 28 before the frame is folded. Scissor struts, Fig. 3 (not shown) may be used to connect the two side frames of the wheel chair to allow transverse folding. Guards may be provided on the belts and pulleys and the latter may be spring loaded for belt tensioning. Provision can be made for the castor action of wheels 3 to be locked. The driving wheels may be either at the front or rear of the chain.
Patent GB-1513095-A (GB)
Title: Hydraulic-pneumatic spring device
IPC: F16F9/06
Filed: 1976-06-07
Abstract: 1513095 Hydraulic-pneumatic damped springs THYSSEN INDUSTRIE AG 7 June 1976 [7 June 1975] 23433/76 Heading F2S A hydraulic-pneumatic damped spring device for damping and resiliently resisting a pivotal movement of a part (not shown) connected to a crank 5 of the device, comprises a connecting rod 7 connecting the crank 5 with the piston 8 of an hydraulic cylinder 2 having an hydraulic chamber 2<SP>1</SP> communicating by way of a duct 3<SP>1</SP> in a support member 3 with an hydraulic accumulator 4 containing a variable-volume gas chamber 4<SP>11</SP>, the device further comprising damping valves 9, 9<SP>1</SP> in duct 3<SP>1</SP>, and cooling jacket parts 13, 13<SP>1</SP> allowing cooling liquid to flow from an inlet connection 14 in sequence past the support member 3, past the hydraulic cylinder 2, and past the hydraulic accumulator, and to exit through an outlet connection 17.
Patent GB-878240-A (GB)
Title: Methods of polymerizing vinyl formate
IPC: C08F8/12
Filed: 1960-07-05
Abstract: Vinyl formate is polymerized or copolymerized with other vinyl esters using as solvent a formic acid ester of a saturated monohydric alcohol or a mixture of organic solvents including such an ester. The other solvent may be dioxane or acetone, and may be used to control the degree of polymerization, and the formic acid ester may be methyl formate.  The catalyst may be azo-bisisobutyronitrile or triethyl boron and the polymerization temperature may range from -40 DEG -60 DEG C.  The polymerization may be stopped by addition of an acetone or dioxane solution of hydroquinone or m-dinitrobenzene and the polymer precipitated by methanol.  The polyvinyl ester may be saponified to yield polyvinyl alcohol.
Patent GB-1090772-A (GB)
Title: Casting wax compositions
IPC: B41B13/00
Filed: 1963-06-06
Abstract: A casting wax composition for use in precision casting processes comprises a casting wax and a combustible filler, which filler is capable of remaining solid throughout an early pattern making stage, which has a low oil absorption factor, and which can be removed completely by combustion in a subsequent ceramic shell making stage. The filler may be a carbon with a low residual ash value, especially a thermal black.  In one casting process, the above composition is poured or injected under pressure into a mould to produce a pattern or model, which is invested in a suitable refractory material to form a cast, which cast is heated to effect presintering and melting out of the pattern, further heated to high temperature to burn out the last traces of pattern and complete the sintering, pouring a suitable metal alloy into the cast, cooling and breaking away the ceramic shell
Patent GB-390401-A (GB)
Title: Improvements in combined horse shoes and pads
IPC: A01L1/04
Filed: 1932-08-23
Abstract: 390,401. Horseshoes. GIBNEY, P., Suffolk Street, Kells, Co. Meath, Irish Free State. Aug. 23, 1932, No. 23525. [Class 67.] A bar 5 carrying a rubber or like heelpad 4 is detachably or permanently secured in horizontal open-ended slots 3 in the ends of the shoe, where it is held by friction, by screws or by welding. Specifications 285/05, 4337/07, 13754/12, and 180,499, [all i n Class 67, Horse-shoes], are referred to.
Patent GB-404240-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/04
Filed: 1933-08-24
Abstract: 404,240. Brushes. HOOVER, Ltd., Perivale, Greenford, Middlesex.-(Hoover Co., North Canton, Ohio, U.S.A.) Aug. 24, 1933, No. 23545. [Class 19.] A vacuum cleaner agitator is grooved to receive a brush which is held wedged in position and which can be turned end to end and placed at a lower level for work. The agitator is made of sheet metal A with an annular driving groove B. Metal is pressed inwardly to provide recesses C<1>, C<2> with rubber buffers and a shoulder D<1> opposite a radial screw F. The brush has a back G with inclined surfaces J, K at each end engageable by the screw F which wedges the brush into the recess C<1> or C<2>. The back of the brush has a surface L resting on an abutment P<1> of the recess C<1>. The other end of the brush M is cut away at N. The surface M rests against the shoulder D<1>. When the brush is turned end to end an abutment P enters the recess N and the screw F engages the bevelled end J holding the brush at the new lower level.
Patent GB-387730-A (GB)
Title: Improvements in ticket-issuing machines
IPC: G07B5/00
Filed: 1931-08-21
Abstract: 387,730. Ticket-issuing apparatus. ACCURATE CHECK TAKER, Ltd., 17, Tavistock Street, Covent Garden, and HARVEY, F. S., 117, Underhill Road, both in London. Aug. 21, 193], No. 23546. [Class 106 (iii).] Ticket-issuing apparatus for preventing reinsertion of a withdrawn ticket strip comprises a casing A of wood, sheet metal, &c. having lockable doors A<1>, A<2>, compartments formed by partitions B and slots F for receiving a rod supporting stamped sheet metal guides E for strip tickets. The guides E, by means of the punching screws G, can be locked either in retracted position within the casing or in position where they extend through slots D', D<2> in the doors A<1>, A<2>. The guides can be locked independently of the doors A<1>, A<2> locking the ticket compartments by means of hinged flaps H<1>, H<2> which can be secured by a padlock passing through the projection J which passes through a slot formed by the adjacent ends of the flaps H<1>, H<2>. The ticket strip passes over the stop P and under the bar Q formed with spring tongues R holding the ticket strip in contact with the floor K of the guide E and then over the rib O, or ribs according to the Provisional Specification, raising the ticket strip to facilitate gripping, a stud N engaging spaced holes in the ticket strip which is torn off over the serrated lip M. On an attempt to insert a torn-off ticket strip into the body of the machine it will be seen that the end of it or a hole in it, after it has passed under the spring tongues R and is thus held to the floor of the guide, will engage with the stop P to prevent further movement of the ticket strip into the body of the machine.
Patent GB-468543-A (GB)
Title: Improvements in or relating to methods of coating the interior of electric discharge tubes with luminescent substances
IPC: C09K11/02
Filed: 1936-08-27
Abstract: A luminescent substance is distributed on the interior of an electric discharge tube by applying a binding medium by means of one or more articles of regular or irregular shape which are shaken up in the tube by movement of the tube, and thereafter applying the luminescent powder.  Alternatively the powder may be applied with the binding medium.  Beads of glass, stainless steel, or rubber, or a flexible chain may be used.  The binding medium may be potassium silicate and a polyhydric alcohol (e.g. glycerol), the volatile part of which may be subsequently driven off by heat and evacuation of the tube. Reference is made to a process in which the interior of a cathode-ray tube is provided, by a pouring or like operation, with a coating of binding material which is dried until it becomes tacky, whereupon a fluorescent powder mixed with a heavy powder, as of zinc, is distributed on the coating by rotating or oscillating the tube, the purpose of the heavy powder being to assist the even distribution of the fluorescent powder.
Patent GB-1133554-A (GB)
Title: Substituted furfuryl esters of chrysanthemumic acid, methods of manufacturing same, and insecticides containing said esters
Inventor: KATSUDA YOSHIO
IPC: C07D307/45
Filed: 1967-05-22
Abstract: 1,133,554. Substituted furfuryl esters of chrysanthemumic acid. DAINIPPON JOCHUGIKU K.K. 22 May, 1967 [28 June, 1966; 24 Aug., 1966], No. 23623/67. Heading C2C. [Also in Division A5] Esters of the formula wherein each radical X represents C 1-6  alkyl, alkoxy, C 2-6  alkenyl, alkenyloxy, halogen or nitro and n represents 1, 2 or 3 are prepared by reacting chrysanthemumic acid or a functional derivative thereof, e.g. a halide, anhydride, ester, or salt, with a substituted furfuryl alcohol or a derivative thereof, e.g. an ester, or a halogen or metal derivative. The products are insecticides.
Patent GB-1308095-A (GB)
Title: Process for preparing benzodiazepine derivatives
IPC: C07D243/30
Filed: 1971-04-19
Abstract: 1308095 Benzodiazepines SUMITOMO CHEMICAL CO Ltd 19 April 1971 [11 March 1970 16 March 1970 (2) 2 Sept 1970 4 Sept 1970] 23669/71 Heading C2C Compounds of the general formula (R 1  = H, halogen, NO 2 , CF 3 , C 1-4  alkoxy; R 2,3  = H, C 1-4  alkyl, halogen, CF 3 ; R 4  = H, C 1-4  alkyl, Ph, aralkyl ; n = 1-4) and their salts are prepared by hydrolysing a compound of the formula (R = carboxylic acyl, tetrahydrofuryl, tetrahydropyranyl) or salt thereof, optionally followed by salt formation. The starting materials are prepared by (a) oxidizing a compound of the formula or (b) reacting a compound of the formula with a compound of the formula optionally followed in either case by salt formation.
Patent GB-406339-A (GB)
Title: Improvements in or relating to the separation of solid impurities from molten metals
IPC: C22B9/02
Filed: 1932-08-24
Abstract: 406,339. Gravity-separation apparatus; filters. ROESSLER & HASSLACHER CHEMICAL CO., Niagara Falls, New York, U.S.A. Aug. 24, 1932, No. 23687. Convention date, Aug. 24, 1931. [Class 46.] Solid impurities which sink to the bottom of molten metal, such as alkali metal, alkaline earth metal, beryllium and their alloys, in a tank 1 are removed by means of a mechanical conveyer 22 in an upwardly - extending limb 19. The clear liquid is withdrawn through a filter 12 to a tank 14. The tank 1 is provided with heating elements 2, flues 3 for air to cool the tank, lagging 4, an agitator and scraper 10 on a rotary shaft 8, pipes 6, 7 for the supply of inert gas, such as nitrogen, and of the liquid under treatment respectively and a connection to a thermo-couple 11. The casing 19 has heating elements 20, lagging 21 and an outlet 24. The screw of the conveyer fits loosely in the casing, so that metal will drain away from the solid matter as it is raised. -The filter comprises a number of layers of metal screening of different fineness wrapped around a perforated pipe. The tank 14 has connections to vacuum and to a source of gas under pressure, this arrangement allowing of a return flow of metal at intervals to cleanse the filter.