baber/WOPTO huggingface dataset:
Patent GB-1023482-A (GB)
Title: Improvements in coated fabrics
Inventor: HARRISON ALAN MORLEY
IPC: D06N7/00
Filed: 1963-01-24
Abstract: A thermoplastic material is applied to a moving sheet of base material, which is then passed under a doctor knife, which defines the thickness of the coating, and, by means of ducts therein, one or more thermoplastic pastes, similar to the basic thermoplastic coating material but differing in colour therefrom, are superimposed on the basic coating, the applied coatings being subsequently cured.  The base material may be woven cotton, hessian, felt, paper, metal foil, woven fibreglass, or synthetic mesh material.  The thermoplastic may be polyvinyl chloride.  The doctor knife may be moved laterally to the direction of advance of the moving sheet in an oscillatory manner according to an electrically or hydraulically operated programme. The coated sheet may be passed through engraved rollers after curing, e.g. by infra-red oven radiation, to provide any desired surface finish. The coated sheet materials may be used as floor coverings.
Patent GB-578670-A (GB)
Title: Improvements in or relating to the manufacture of magnesium
IPC: C22B26/22
Filed: 1944-02-21
Abstract: 578,670. Magnesium extraction. CANADIAN INDUSTRIES, Ltd. Feb. 21, 1944, No. 3161. Convention date, Feb. 22, 1943. [Class 82 (i)] A process for the production of magnesium which comprises heating to reaction temperature, normally 1100‹ C.-1425‹ C., and in the absence of air or other reactive gases, a mixture of magnesium silicate, lime and silicon and/or metal silicide. Magnesium vapour is evolved and is condensed on a cooled surface, the temperature of which is preferably maintained at between 450‹ C. and 650‹ C. The process is improved if carried out under a subnormal pressure not greater than 60 mm. of mercury. If the silicate is hydrated it should be dried in a preliminary roasting operation. The composition of the reactive charge should be adjusted to give a residue containing calcium disilicate. Several examples are given of processes in which ferrosilicon is the reducing agent and serpentine, talc or olivine the source of magnesium.
Patent GB-326624-A (GB)
Title: Improved means for the measurement of small variations of illumination
IPC: G01J1/46
Filed: 1929-01-30
Abstract: 326,624. Whalen, F. C., and Radiovisor Parent, Ltd. Jan. 30, 1929. Photometric apparatus.-In means for measuring small variations of illumination an electrical light-sensitive device is used in series with a source of E.M.F. and a condenser. A neon tube is connected across the condenser, the latter being periodically charged up to a certain potential at which the neon tube becomes conducting and discharges the condenser. The rate of charging of the condenser depends on the current through the photo-sensitive device and thus the periodicity ofthe discharge varies with the illumination of the photo-sensitive device. The frequency of the circuit can be determined by observing the flashing of the neon tube or a telephone may be inserted in the circuit for audio measurements. A double circuit may also be used, as shown in Fig. 1, the selenium cell 4, the capacity 6, and the neon tube 7 forming the original circuit and the neon tube 3, the capacity 2, and the variable resistance 11 forming a second circuit. Phones 5, a resistance 8, and a battery 1 are connected across these circuits. The changing resistance of the cell 4 brings the circuits out of tune, causing a beat note in phones 5 which can be removed by varying resistance 11 or capacity 6 or adjusting an optical wedge to vary the illumination of cells 4. Phones may be inserted at positions 9 or 10 instead of at the point 5.
Patent GB-1338166-A (GB)
Title: Revolution-counting mechanisms
IPC: G06M1/16
Filed: 1972-01-13
Abstract: 1338166 Counters FERRANTI Ltd 13 Jan 1972 [27 Jan 1971] 3246/71 Heading G4D In a drum type counter of the kind in which a transfer wheel 11 located between the first 10 and second 12 digit wheels is driven from the first digit wheel by a lost motion coupling and a falling weight 27 to rapidly change the second digit wheel 12, the transfer wheel 11 drives a transfer pinion 28 over 72 degrees of its angular movement and the transfer pinion is shaped to provide a step down ratio of 2 : 1 so that the second digit wheel turns through only 36 degrees, to increase by one digit. Specification 1,338,164 is referred to.
Patent GB-550044-A (GB)
Title: Improvements in and relating to leaf filters
IPC: B01D37/04
Filed: 1941-03-11
Abstract: 550,044. Filters. MERRILL CO. March 11. 1941, No. 3333. Convention date, July 30, 1940. [Class 46] A rectangular filter leaf, applicable especially for the treatment of cyanide solutions, is provided at each end with a pipe through which suction can be applied equally, so that, when the leaf is being reconditioned after the discharge of cake therefrom, by drawing liquid from a suspension of filter aid or ore solids, the coating of filter aid or solid is deposited uniformly on the leaf. The Figures show a leaf 16 with suction pipes 17, 18 provided respectively with valves 22, 24 and coupling devices 19, 25. For use in filtering the leaf is suspended with others in a tank 10, to which the liquid under treatment is supplied, and the pipe 17 is coupled to a manifold 21 for discharging filtrate through a pipe 29 to a receiver 11, exhausted by means of a pump 33. After removal from the tank 10 and the discharge of the cake the leaf is suspended in a tank 34, Fig. 3, containing the coating suspension. The pipes 17, 18 are coupled respectively to a pipe 47, and a hose 46 both leading to an exhausted container 41 from which the liquid,is withdrawn by a pump 35 and returned through pipes 36, 37, 38 to the tank 34. The inlets to the tank from the pipes 37 have baffles 37b so that the liquid is not directed against the bottom of the leaf and the pipe 38 enters the tank above the liquid level so that the clarity of the liquid can be observed. The use of a hose connection 46 permits of suction being maintained within the leaf while it is being brought to the tank 34 and returned to the tank 10. The details of the apparatus are as described in Specification 523,188. Specification 511,968 also is referred to.
Patent GB-1338227-A (GB)
Title: Limiters for noise reduction systems
Inventor: DOLBY R M
IPC: H03G7/00
Filed: 1970-01-23
Abstract: 1338227 Automatic gain control DOLBY LABORATORIES Inc 11 Jan 1971 [23 Jan 1970] 3351/70 Heading H4R Gain control circuit, e.g. for use in the compounder system of Specification 1,120,541, includes potentiometer comprising a series resistance R1 and a shunt resistance formed by the source drain path of a FET 12 with a gain controlling voltage applied to the gate of the FET. A smoothing capacitor C1 is provided on the gate of the FET with feedback from the output of the gain control circuit to the other terminal of the capacitor so that substantially half the voltage derived from the source drain path of the FET is applied to the FET gate. In an alternative arrangement, Fig. 2 (not shown), a second capacitor is connected from the gate terminal to earth so that the two capacitors form an attentuator for the fed back voltage. A further alternative, Fig. 3, gives a greater range of control by using two input variable potentiometers in series with the control voltage applied to the second FET 19 biased so that initially only one potentiometer is effective then, as the control voltage increases, the second potentiometer becomes effective. Reference has been directed by the Comptroller to Specification 1,039,841.
Patent GB-994454-A (GB)
Title: Improvements in glow discharge indicator tubes
IPC: H01J17/49
Filed: 1963-01-28
Abstract: 994,454. Glow-discharge indicator tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 28, 1963 [Jan. 31, 1962], No. 3429/63. Drawings to Specification. Heading H1D. A glow discharge indicator tube, e.g. of the type described in Specification 994,453, has the cathode lead-in wires covered by a thin graphite layer. The supply pins may also be coated with graphite. Specification 994,455 also is referred to.
Patent GB-196125-A (GB)
Title: Improvements in optical projection apparatus, especially for advertisement purposes
IPC: G03B21/16
Filed: 1922-02-06
Abstract: 196,125. Atrax Ges., and M³ller, G. G. Feb. 6, 1922. Optical-projection apparatus for advertisement purposes is mounted on a post d carried by a pedestal e and fitted with a universal joint b clamped by nuts c. The lenses comprising the condenser m, together with the plate carrier l, are rotatable about the optical axis to adjust the projected image to the desired position. The casing a is double-walled throughout and provided with air openings s for ventilation purposes, the openings being off-set in relation to one another. The casing is also in two parts p, q arranged to telescope one in the other and to be secured together by a bayonet catch r. The incandescent lamp g may be flattened at the part nearest the condenser and the filament arranged close to the portion, the lamp being adjustable and secured in position by a screw h.
Patent GB-372297-A (GB)
Title: Improvements in and connected with vehicle headlights and the like
IPC: F21V17/00
Filed: 1931-02-03
Abstract: 372,297. Vehicle headlamps. STONE & CO., Ltd., J., Deptford, and VIDAL, J. F. B., 18, Brandram Road, Lee, both in London. Feb. 3, 1931, No. 3460. [Class 75 (iv).] Lantern screens. -A headlight for railway locomotives and other vehicles, having a lamp mounting in front of the reflector, is provided with a non- reflecting light shield which is in the form of a complete annulus or of an annulus with a gap or aperture, and is fixedly mounted in front of and close to the lamp-bulb. A bar 7, spring- hinged at 6, has a central ring 8 in which a lamp-bulb 9 is adjustably mounted as described in Specification 372,302. The bar 7 is held in place by a spring bolt 11 which has a conical shoulder 11<1> interlocking with a complementary recess at the end of a slot in the bar 7, and has to be depressed against its spring to release the bar. A shield 33, shaped like the segment of a dished annulus, is secured on an inward extension 32 of the socket ring 8 by a ring nut or set-screws. It is made of a frosted or tinted translucent glass, or of metal or other material with a non-reflecting surface. Other gaps or apertures besides that shown may be provided. A lens may be fixed in any such gap or aperture, to direct a subsidiary beam laterally. Lenses may be provided at diametrically opposite points to send out a small beam to each side of the track. In the case of a glass shield, the lenses may be moulded in one with the shield, but not frosted or tinted. The shield may comprise separate segments with the lenses between them.
Patent GB-716143-A (GB)
Title: Improvements in electric tumbler switches for alternating current circuits
IPC: H01H23/16
Filed: 1952-02-09
Abstract: 716,143. Tumbler switches. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. Dec. 22, 1952 [Feb. 9, 1952], No. 3473/52. Class 38(5) A roller 3 is arranged between a cam part 2 of a dolly 1 and a blade spring 10 associated with a spring-pressed contact plate 6 which pivots about one fixed contact 7a. The spring 10 is held against the underside of plate 6 by a spring 8 and has a turned-over end loosely embracing the free end of plate 6 and engaged by the roller 3, the spring 10 serving to take up slack in the dolly and urge it into its end positions. The roller ends are guided in grooves 4 in the base 5. The dolly may have two cam parts co-operating with two contact plates. Figs. 4, 5 (not shown), one contact being opened when the other is closed, or both contacts may be opened and closed together in a double-pole switch, Figs. 6, 7 (not shown). Two switches of the Fig. 5 character may be mounted in one base, the two dollies being mounted side-by-side on a common pin.
Patent GB-482399-A (GB)
Title: Improved method of manufacturing light-diffusing glass articles
IPC: C03C15/00
Filed: 1937-02-05
Abstract: 482,399. Treating glass surfaces. OSTERREICHISCHE GLASFABRIKEN UND RAFFINTERIEN J. INWALD AKT.- GES. Feb. 5, 1937, No. 3508. [Class 56] [Also in Groups XI and XVI] A method of making light-diffusing glass articles, especially electric lamp bulbs or lamp shades, comprises applying to the glass surface a layer of small grains of glass having a softening temperature somewhat lower than that of the glass to be treated, subjecting the coated surface to heat sufficient to fuse the grains on to the glass surface, and then subjecting the coated surface to the action of a glass solvent to remove the fused-on grains and leave a pitted or scarred surface.
Patent GB-802880-A (GB)
Title: Improvements in or relating to artists' palettes
IPC: B44D3/02
Filed: 1957-02-01
Abstract: 802,880. Artists' palettes. HENDRY, M. M. May 28, 1957 [Feb. 1, 1957], No. 3539/57. Class 11 An artists' palette comprises a tray 1 and has a wall or rim 2 enclosing a portion of the surface of the tray, the palette also being provided with a thumb hole 3 formed in a portion 6 of the surface of the tray exterior to that portion enclosed by the wall 2. Colour containers may be provided in the portion 6 of the tray. A lid may be provided. The arrangement is such that paints mixed in the enclosed portion of the tray may be covered with water when not in use.
Patent GB-1493641-A (GB)
Title: Servo valve
IPC: F16K11/07
Filed: 1975-01-28
Abstract: 1493641 Valves ELEKTRO-MECHANIK GmbH 28 Jan 1975 [31 Jan 1974] 3651/75 Heading F2V A spool valve 6 controlling communication between a pressure source 7 return lines 8 and load lines A, B in a closed loop control system has a grooved land 3 to enable fluid from the source to flow direct to a return line 4 with only a small loss of pressure when the spool is in the neutral position. The pressure loss is sufficient to maintain the fluid temperature. As the valve is displaced from neutral, the flow into the line 4 decreases to match the increased flow to the load.
Patent GB-1487312-A (GB)
Title: Flying toy
IPC: A63H33/20
Filed: 1976-01-30
Abstract: 1487312 Flying toys H-U WESENBERG 30 Jan 1976 [26 Nov 1975] 03666/76 Heading A6S A toy adapted for vertical flight via the egress of air from an inflatable balloon 4 is characterised in that subsequent descent is retarded by release of a parachute 9 folded and housed during the ascent in a recess 7 of the toy and released when the balloon has deflated sufficiently for portion 10 of the balloon to uncover the recess. Preferably the parachute is of thin plastics film and is formed as a polygon e.g. hexagon with integrally formed support lines emanating from the corners thereof and is adhesively connected to a toy body formed of plastics foam e.g. as a Rocket Flier, Parachutist. In normal flight attitude the longitudinal axis of an inflation nozzle 5 intersects the centre of gravity S and is vertically disposed to ensure vertical propulsion.
Patent GB-983555-A (GB)
Title: A process for the continuous removal of "break" from vegetable oils and fats
IPC: C11B3/16
Filed: 1962-01-31
Abstract: Mucilaginous material ("break") is removed from vegetable fats and oils by mixing the oil from tank 1 with water from tank 6 and introducing the mixture into line 9 which forms part of a closed system comprising a pump 10, a heater 12 and a separator 13 so that the oil/water mixture, which in the closed system consists of at least one volume of water for every volume of oil, circulates continuously until the mucilaginous material contained therein is completely hydrated and passes into the aqueous phase; the mixture then passes out of the closed system through overflow 20 to conditioner 24, where any emulsion is broken, before entering centrifugal separators 25, whence oil eventually discharges through cooler 28 while the aqueous phase passes out by line 26.  U.S.A. Specification 2,319,970 is referred to. <PICT:0983555/C4-C5/1>
Patent GB-477496-A (GB)
Title: Improvements in preheaters for heating or illuminating apparatus of the kind in which a liquid fuel is burned in a gasified state
IPC: F23D11/44
Filed: 1937-02-08
Abstract: 477,496. Manually-operated valves. WADUM, N. C., MEJDAHL, A. N., and OLSEN, F. V. A. Feb. 8, 1937, No. 3733. Convention date, Feb. 7, 1936. [Class 135] [Also in Group XI] A hand wheel 19 when moved to the right along a needle valve spindle 30, Fig. 1, operates by a link 47 a member 41 about a pivot 44 to uncover an aperture in a block 32, through which an atomized mixture of' fuel and air is supplied from a pressure fuel reservoir to preheat a vapour burner 2. When the burner 2 is sufficiently hot the hand wheel is rotated and turns the spindle 30 to admit fuel from the reservoir through a member 1 to the burner 2. The hand wheel is then pushed back to its original position to cause the member 41 to shut off the supply of atomized fuel. The arcuate part 42 of the member 41 may carry packing and be formed so as to engage resiliently against the block 32 which is connected to the member 1 by air and fuel supply pipes 36. In the modification shown in Fig. 2, the aperture for the atomized mixture of fuel and air is normally covered by one end 58 of a member 59 which is pivoted to a lever 61 pivoted to the atomizer and is connected to a collar 48 on the hand wheel 19 by a link 47 surrounded by a spring 65. A tension spring 64 connects the lever 61 to the member 59. When the hand wheel is moved to the right the member 59 turns about its pivot 60 until it engages a stop 63 on the lever 61 and then both the member 59 and lever 61 turn about the pivot 6 of the lever 61. The Specification as open to inspection under Sect. 91 comprises also forming the block 1 with fuel and air passages 7, 11, Fig. 7 (Cancelled), which are controlled by grooved rings 5, 6 of resilient heat-resistant material mounted on a rotatable spindle 14 and pressed against their seatings by a spring 16. In one position of the spindle 14 both fuel and air passages are closed. In a second position the fuel and air passages are connected to the preheating burner. In a third position the fuel passage is connected to the main burner. Preferably the second and third positions overlap slightly so that the preheating burner before being extinguished will ignite the main burner. This subjectmatter does not appear in the Specification as accepted.
Patent GB-852988-A (GB)
Title: Alkylbenzene diisocyanates
IPC: C08G18/76
Filed: 1959-02-03
Abstract: Polyureas and polyurethane foams or rubbers may be obtained by condensing alkyl benzene di-isocyanates of the formula: <FORM:0852988/IV(a)/1> where R is an alkyl group containing 9-24 carbon atoms, with urea, polyesters, polyglycols or polyethers, e.g. polyethylene glycol or by reacting an excess of the di-isocyanate with a polyether and cross-linking the resulting polymer with a diamine.ALSO:The invention comprises compounds of the formula : <FORM:0852988/IV(b)/1> where R represents an alkyl group containing 9 to 24 carbon atoms, and a process for the production of an alkyl benzene diisocyanate from the corresponding alkyl benzene diamine (where the alkyl group may contain 1-24 carbon atoms) and phosgene where a solution of the alkyl benzene diamine in ethyl acetate is added to a solution of phosgene in ethyl acetate at between -5 DEG and 50 DEG C. and the mixture then heated to distil out the ethyl acetate. Phosgene is preferably present in excess and the product distilled under reduced pressure.  The examples describe the preparation of nonylbenzene-, dodecylbenzene-, octadecylbenzene- and tertbutyl benzene-di-isocyanates.  Aromatic diamines used as starting material are prepared by reduction of the corresponding di-nitro compounds which themselves are obtained by di-nitration of the alkyl benzene.
Patent GB-301549-A (GB)
Title: Manufacture of dyestuff preparations
IPC: C09B67/46
Filed: 1927-08-03
Abstract: 301,549. British Dyestuffs Corporation, Ltd., Adams, H., and Shepherdson, A. Aug. 3, 1927. Divided application. Dye preparations; azo dyes; sulphonic acids.- Dry dispersed dye preparations and dye pastes are made with the aid of a product obtained by heating ligninsulphonic acid with aqueous alkali metal hydroxides or carbonates. In an example of the preparation of the dispersing agents, ligninsulphonic acid (sulphite cellulose pitch) is heated with aqueous caustic soda in a closed vessel to 110‹, the mixture is diluted, acidified with hydrochloric acid, and the precipitate dried, with or without previous removal of electrolytes by washing. The product is soluble in alkalies and couples with diazo compounds to form azo dyes. A similar product is obtained by using a concentrated solution of potassium carbonate in place of the caustic soda. In examples of the production of dye preparations, (1) an aqueous paste of Duranthrene blue 3 GT in a fine state of division is mixed with an alkaline solution of the product obtained by heating ligninsulphonic acid with caustic soda, and the mixture is dried and powdered; the process may be applied to insoluble azo dyes, pigments and aminoanthraquinones such as are used in dyeing cellulose esters and ethers, (2) an aqueous paste containing the monoazo dye from 5-nitro-2-anisidine and diethylaniline in finely divided form is mixed with an alkaline solution of one of the products described above, and the mixture is dried and powdered, and (3) indigo powder is mixed in plastic form with an alkaline solution of one of the products described above, and the mixture is kneaded to obtain the required degree of dispersion. Specincation 286,808 is referred to.
Patent GB-1101871-A (GB)
Title: Plastic materials, particularly for bearings and similar machine elements, and method of its manufacture
IPC: C08L59/02
Filed: 1965-01-29
Abstract: Compositions comprise discrete particles of average size 0.01 to 3.0 mm. of a polyolefine of M.W. above 500,000 dispersed in a continuous phase of a synthetic plastics material of higher melting point than the polyolefine.  To maintain the particle size of the particles melt blending should be effected under conditions such that the melt viscosity of the polyolefine is greater than that of the other material.  The only specified plastics are polyamides and polyacetals. In Example 1 18% of polyethylene (M.W. 1,200,000, particle size 0.03 to 0.5 mm.) is incorporated in nylon 6 (M.W. 70,000) with 0.3% tris(polyoxyethylene) sorbitan monolaurate to promote adhesion and in Example 2 5% of polyethylene (M.W. 1,000,000, particle size 0.04 to 0.2 mm.) is incorporated in polyoxymethylene (M.P. 175 DEG  C., viscosity 35,000, at 202 DEG  C.  It is also stated that the compositions may be obtained by incorporating the polyolefine in an anionically polymerizing lactam. They are stated to be useful for bearings and gears.
Patent GB-1293171-A (GB)
Title: Stowage lockers for marine craft
Inventor: THORPE DAVID CHARLES
IPC: B63B17/00
Filed: 1969-01-23
Abstract: 1293171 Boat lockers RICHMOND MARINE Ltd 22 Dec 1969 [23 Jan 1969] 4029/69 Heading B7S In a marine craft provided with a removable stowage locker in the form of a removable bin 1, the craft has an opening in its hull 7 to receive the bin. A cover 17 extends over the bin when it is in position and closes the opening in the hull when the bin is removed. Strop 23, catch 24 and clips 25, 26 secure the cover in position on the hull.
Patent GB-1077984-A (GB)
Title: Symmetrical benzimidazolo cyanine dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/06
Filed: 1965-01-29
Abstract: The invention relates to symmetrical cyanine dyes of the formula <FORM:1077984/C4-C5/1> wherein D is an alkylene group containing 1-4 C and Q is Cl or Br and n is 1 or 2 or an alkali metal, ammonium or substituted ammonium salt thereof.  These dyes are prepared by reacting an appropriately substituted benzimidazole with an alkane sultone or with a halogen substituted alkane sulphonic acid to produce a quaternary salt and reacting the quaternary salt with chloral alcoholate.