baber/WOPTO huggingface dataset:
Patent GB-356476-A (GB)
Title: Improvements in the cooling of liquids
IPC: F28D3/02
Filed: 1930-09-08
Abstract: 356,476. Cooling liquids; refrigerating. DEHN, F. B., 103, Kingsway, London. -(Pevely Dairy Co. ; 1001, South Grand Boulevard, St. Louis, Missouri, U.S.A.) Sept. 8, 1930, No. 26807. [Class 29.] Liquid to be cooled is delivered through a pipe 28 to a horizontal pipe 29, Fig. 3, having perforations 30 along the top, flows into an outer concentric pipe 23 and issues through perforations 25 on to a horizontal header pipe 4 of a tubular evaporator for a refrigerant. The liquid is distributed over the walls of the vertical evaporator tubes 6 by grooved plates 26, and drips from the lower header 5 into a trough 31 with a central discharge pipe 33. The refrigerant is supplied through pipes 14, 16, 11 to the bottom header, the flow being controlled by a valve in a casing 15 actuated by a float in a chamber 18 in communication with a trap 8. A constant pressure and temperature of the refrigerant is maintained by an automatic valve 13 in the vapour outlet pipe 12. The cooler is supported between end-frame members 2, 3, and is covered in.
Patent GB-634823-A (GB)
Title: Improvements in writing instruments
IPC: B43K24/12
Filed: 1947-10-06
Abstract: 634,823. Pen and pencil holders.. FAGARD & CIE, A.J. Oct. 6, 1947, No. 26826. Convention date, Nov. 4, 1946. [Class 146 (iii)] A multiple writing holder comprises two writing members 12 and 13 which are adapted to slide in opposite directions in a casing 1. The writing members are detachably connected to a flexible blade 11  slidable in a groove 10 in an end part 5 of the casing. The member 13 carries an operating member 17 slidable in a slot 19 and which may be locked in position by lateral notches 20. The writing members 12 and 13 may both be ball point pens, or one may be a propelling pencil. In a modification in which the writing members are one ball point pen and one propelling pencil, the lead of the pencil may be projected and retracted by means of a rotatable point section carrying a lug which engages a projection on the pencil. In a further embodiment the writing-members. are detachably mounted on two racks which mesh with a common pinion one of the writing-members carrying a similar operating member to the member 17.
Patent GB-659039-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/06
Filed: 1949-10-19
Abstract: 659,039. Suction cleaners. HOOVER, Ltd. Oct. 19, 1949, No. 26848. Convention date, Oct. 27, 1948. [Class 8(i)] A suction cleaner nozzle body 4, Fig. 2, has the area of its suction mouth 7 varied by means, e.g. a plate 31 actuated by a pneumatic device, e.g. bellows 26 manually controlled at will by the operator. The bellows 26 is held in the minimum nozzle area position shown against a spring 55 by atmospheric air admitted through a body port 43, a port 42 of a rockable annular valve plate 40 and body ports 37, 36, the exterior of the bellows being subjected to normal suction through the central opening of the valve plate 40. To collapse the bellows and increase the nozzle opening 7, the valve plate'40 is rocked in a clockwise direction as shown in Fig. 5, by the operator angularly displacing the wand elbow 10 about its axis until a tongue 47 thereof engages a valve shoulder 46 to displace the port 42 and put a suction port 41 in register with the body ports 37, 36. Either of the valve positions is maintained by a spring 50 engaging a body recess 51, thus allowing full angular displacement of the elbow 10 and the wand secured thereto. An upwardly spring-biassed brush 61 is held in its operative position by a wedge 65 linked by a pin and slot connection to a bellows plate 30, a portion 53 of which forms the front lip of the nozzle opening 7, and is withdrawn on retraction of the bellows.
Patent GB-1219621-A (GB)
Title: Composite tape-form conductors comprising electrically normally conducting metal and superconductor current-carriers incorporated therein
IPC: H01B12/00
Filed: 1968-06-05
Abstract: 1219621 Super-conductors SIEMENS AG 5 June 1968 [24 June 1967] 26854/68 Headings H1A and A4D A tape form conductor comprises a superconductor current carrier coated with a normal metal and soldered between two tapes of normal metal, the adjacent faces of the tapes being provided with opposed longitudinal grooves to receive the current carrier. As shown, Fig. 1, a plurality of super-conductor wires 1 having coatings of a normal metal 2 are located in grooves in the faces of two tapes 3, 4 of normal metal secured by solder 5. The tapes may be of copper and produced by rolling to form the grooves, annealing, brushing to remove any oxide surface layers, and coating at least the grooved faces with solder. The super-conductor wire is coated with copper the surface of which is cleaned by etching and then covered with a layer of solder by dipping. The prepared wires are inserted into the grooves between the tapes which are then passed through a pair of heated jaws to solder the components together. In a first modification, each of the conductors comprises a plurality of strands of super-conductor material, having individual coatings of normal metal twisted together. In a second modification the conductors at the edges of the tape are replaced by wires of high strength metal, for example steel coated with copper. The super-conductor material may be an alloy of niobium and zirconium (25 to 50 wt per cent Zr) or of niobium and titanium (40 to 70 wt per cent Ti) and may be coated with gold or silver instead of copper. The solder has a low melting point and may be tin, indium, lead, an alloy of tin and silver (3À5 or 6 wt per cent Ag), an alloy of tin and indium, or an alloy of tin and lead (48 wt per cent Pb).
Patent GB-403492-A (GB)
Title: Improvements in and relating to students' holdalls, pencil and like cases
IPC: A45C11/34
Filed: 1932-09-28
Abstract: 403,492. Pencil &c. cases. SILBERSTEIN, I., 45, Banner Street, Whitecross Street, London. Sept. 28, 1932, No. 26939. [Class 133.] The closure flap 9 of a students' hold-all or pencil or like case constructed to represent the figure of an animal &c. is arranged to afford a representation of the head of the animal and may be held closed by a press-stud 11, the exposed head of which represents the nose. The eyes may comprise black or coloured buttons 12 superposed on white buttons 13, or may be transparent and of circular hollow form with a bead &c. representing the pupil loosely contained therein. The case and closure flap may be arranged to represent two or more animals &c. arranged side by side. A card bearing a series of animal heads or other representations may be movably disposed behind an opening 14 in the body of the case.
Patent GB-903408-A (GB)
Title: New disazo-dyestuffs containing halogenotriazine residues and their manufacture and use
IPC: C09B62/09
Filed: 1959-08-06
Abstract: The invention comprises water-soluble dyes containing at least three sulphonic or carboxylic acid groups of formula <FORM:0903408/IV (b)/1> R is the residue of an azo component (free from azo linkages), n is 1 or 2 and Z is the residue of a monoazo dye sulphonic acid bound through an amino bridge.  They are prepared by condensing a 2 : 4 : 6-trihalo-1 : 3 : 5-triazine with appropriate aminoazo dyes to yield a mono-halotriazine condensation product. Alternatively the monoazo dye sulphonic acid may be replaced by an amino-naphthol disulphonic acid and the condensate so obtained coupled with a diazotized aniline sulphonic acid.  The dyes may be used to colour wool, silk, leather and superpolyamides, but are preferably used to colour cellulose fibres in the presence of an acid-binding agent in yellow and red shades.  In an example the monoazo dye sulphanilic acid --> 1-naphthylamine-6-sulphonic acid is prepared and condensed with cyanuric chloride, the primary condensation product is further condensed with 1-amino-8-naphthol-3 : 6-disulphonic acid and the secondary condensation product is coupled with diazotised orthanilic acid. Several similar examples are specified.  Specifications 797,946 and 838,337 are referred to.
Patent GB-1151278-A (GB)
Title: Improvements relating to Induction Heating Vessels
Inventor: HART KENNETH NEWBOLD
IPC: H05B6/22
Filed: 1967-06-12
Abstract: 1,151,278. Induction heating vessels. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 23 May, 1968 [12 June, 1967], No. 27017/67. Heading H5H. A horizontally disposed cylindrical metal vessel 1 concentrically surrounded by an induction heating coil 3, for heating molten metal or other contents 2 not completely filling the vessel, has one or more conductors 5 shortcircuiting an upper arc portion 1<SP>1</SP> of the circumference of the vessel wall 1 to prevent overheating thereof. The short-circuiting conducting plate or strips 5 are of lower electrical resistivity and/or of lower magnetic permeability than the material of the short-circuited arc portion 1<SP>1</SP> of the vessel wall 1. With a mild steel vessel, the conductors 5 are copper, aluminium or bronze. Any heat generated in a conductor 5 is conducted along it to its positions 6 of securement to the vessel wall, or conductor 5 is cooled by air, or water, or by conduction to the induction coil 3 when this is water-cooled.
Patent GB-989435-A (GB)
Title: Low reflection energy absorbers for waveguides
IPC: H01P1/22
Filed: 1961-07-26
Abstract: 989,435. Waveguide attenuators. W. WANDEL, and U. GOLTERMANN, [trading as WANDEL UND GOLTERMANN (Firm of)]. July 26, 1961 [July 26, 1960], No. 27076/61. Heading H1W. An attenuator or dissipative termination comprises one or more curved resistive laminµ extending from a side or two opposite sides of a waveguide towards or beyond the centre line. The lamina may consist of a lossy dielectric. Attenuation and frequency response are determined by the specific layer resistivity, the width c of the lamina and the depth of penetration a into the waveguide. By means of cams or gears the dimension a can be varied. It is stated to be proportional to the attenuation.
Patent GB-158373-A (GB)
Title: Improvements relating to alternating-current electric motors
IPC: H02K19/12
Filed: 1919-11-05
Abstract: 158,373. Ayres, W. E. M., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 5, 1919. Alternating-current motors; exciting. - In an alternating-current motor which is started as an induction motor and is run as a synchronous motor, the secondary member is provided with a comparatively large number of conductors arranged as a number of similar windings, a starting-resistance being connected to a portion only of the windings or to the windings in parallel at starting, and a source of direct current being connected to the windings in series during synchronous operation. In the arrangement shown in Fig. 1, the rotor is provided with two independent star-connected three-phase windings 10, 11. For starting, the winding 10 is connected across the starting resistance 4, the winding 11 and the exciter 5 being open-circuited. When the motor is nearly up to its synchronous speed, the changeover switch 6 is operated to disconnect the starting-resistance 4 and connect the windings 10, 11 in series with the exciter 5, as shown in Fig. 6. Other arrangements are described in which the rotor is provided with delta-connected two-phase, three-phase and six-phase windings.
Patent GB-318639-A (GB)
Title: Method of producing pigments, particularly for compositions used as anti-corrosives and for painting ships' bottoms
IPC: B22F9/20
Filed: 1929-09-07
Abstract: 318,639. Rahtjen, F., and Ragg, M. Sept. 8, 1928, [Convention date]. Pigments consisting of finely divided metallic lead and especially suitable for anti-corrosive paints and compositions for painting ship's bottoms, are obtained by heating raw materials containing oxides or other compounds of lead e.g. litharge, white lead &c., with solid, liquid or gaseous reducing agents, the heating being effected at temperatures above the melting point of lead e.g. 380‹-400‹ C. in the absence of air. To prevent the formation of molten metal, neutral substances are added e.g. finely-powdered ilmenite, zinc oxide, silicates (such as asbestine) and borates such as manganese or zinc borates which do not react appreciably with the lead. Suitable liquid or solid reducing agents include organic compounds which do not vaporise or decompose to any extent until the above temperatures are reached e.g. pitch, asphalt, copal, cumarone, soot, carbohydrates, molasses &c. Phenols, resin acids, tall oil, naphthenic acid, glycerine &c. or their metal compounds also may be used. Inorganic reducing agents may be used in lieu of or in addition to organic reducing agents, such as reducing metals, as zinc, aluminium, calcium, magnesium, antimony &c. or metal sulphides e.g. galena or antimony sulphide. The reducing metals may be used in excess, the pigments consisting of lead alloys, free from oxide. Carbides, carbon black &c. may also be employed as reducing agents, and smelting products which contain other metals such as antimony, tin, or zinc, besides lead, may be used as raw materials. According to examples, (1) litharge is heated with wood tar and asbestine in a suitable apparatus up to 380‹ C. and upward, while excluding air, (2) waste lead oxide containing antimony is mixed with copal dust and pulverised ilmenite, and slowly heated in a revolving drum, while excluding air. At about 200‹ C., lead salts of the copal acids are formed, which decompose at a higher temperature, and the products of decomposition reduce the lead oxide to finely-divided metal, (3) litharge is mixed with finely powdered petroleum pitch and zinc dust, and heated to 400‹ C., excluding air, (4) massicot is mixed with finely powdered petroleum pitch, finely powdered antimony sulphide and zinc oxide, introduced into a crucible provided with an agitator and heated to a temperature upwards of 380‹ C., as long as vapours escape, air being excluded. A grey pigment of great fineness is obtained, which is then ground with suitable vehicles e.g. linseed oil, stand oil or wood oil.
Patent GB-956419-A (GB)
Title: Method of stabilizing polyoxymethylene
IPC: C08G2/00
Filed: 1962-07-17
Abstract: Polyoxymethylene is stabilised by reaction with a vinyl ether of formula: <FORM:0956419/C3/1> where R is an alkyl or aryl group, R1 is a hydrogen, alkyl or aryl group, and R11 is a hydrogen, alkyl, aryl halogen or alkoxyl group. Specified ethers include vinyl -nbutyl ether, vinyl isobutyl ether, vinyl methyl ether, divinyl ether, and vinyl hexyl ether, vinyl methacryl ether, vinyl alphanaphthyl ether, vinyl beta-diethyl-amino-ethyl ether, benzyl vinyl ether, and phenyl vinyl ether. The reaction is preferably carried out by treating polyoxymethylene in a liquid or vapour containing the ether and possibly a catalyst. Specified solvents are dioxane, tetrahydrofuran, ether, dimethylformamide and phenol while boron fluoride, ferric chloride, aluminium chloride, hydrochloric acid, p-toluene sulphonic acid, trimethylamine, benzyl amine and pyridine are included in the list of catalysts.
Patent GB-1212746-A (GB)
Title: Improvements in or relating to combustion devices
Inventor: BRYCE WILLIAM DEAN
IPC: F23R3/18
Filed: 1968-06-10
Abstract: 1,212,746. Gas turbine combustion apparatus. MINISTER OF TECHNOLOGY. June 4, 1969 [June 10, 1968], No. 27394/68. Heading F1L. A combustion device for forming a flame stabilization zone in a swiftly moving gas stream flowing through a duct, such as the reheat duct 1 of a gas turbine engine, comprises annular tubes 2, 3 mounted concentrically within the duct and an annular wedge shaped flow splitter 4 disposed between the tubes 2, 3. The latter have holes 5, 6 and 7, 8 in their rearwardly directed surfaces for applying suction to the flow through the duct when reheat is required, thus setting up stable recirculation zones as shown in the upper half of the drawing. The reheat fuel is injected upstream of tubes 2, 3. The suction is cut-off when reheat is not required so that the flow is relatively undisturbed as shown in the lower half of the drawing. In a non-annular arrangement one or more pairs of parallel tubes extend transversely across the duct with a straight flow splitter located between the tubes of each pair. To reduce drag, fairings may be applied to the tubes, or the latter may be of non-circular crosssection. The flame stabilizer can also be used in the by-pass duct of a turbofan engine.
Patent GB-426789-A (GB)
Title: Improvements in and relating to fluorescent screens
IPC: G21K4/00
Filed: 1933-10-05
Abstract: 426,789. Fluorescent screens. SIEMENS-REINIGER-WERKE AKT.-GES., 31, Karlstrasse, Berlin. Oct. 5, 1933, No. 27454. Convention date, July 6. [Class 98 (i)] [See also Group XL] A fluorescent screen has the active layer protected by a light filter, which transmits the light issued by the screen but is opaque to light which diminishes the power of luminescence of the active layer, as by chemical change or discolouration. The filter may also modify the spectral composition of the light issued by the screen. A screen comprising a layer of zinccadmium sulphide protected by a filter, transparent to the yellow light emitted by the sulphide and opaque to green light, may be used in daylight. Suitable filters for a particular luminescent material are selected by a long exposure of the material covered by strips of different coloured filters to daylight, and afterwards noting under what filters the material has lost the power of response to the radiation to be employed; another screen under a series of filters is exposed to the exciting rays to ascertain the absorption of the emitted light by the filters used. From the two sets of results a filter is selected, which excludes such light as diminishes the power of luminescence but does not absorb the light emitted under radiation. The light filter may be a layer applied to the screen ; or a colouring material may be added to the binding medium (for example cellulose ester or cellulose ether). Lead glass plates used on screens for Rontgen ray examination may constitute the filter. Screens in a container, e.g. in a Braun tube, may have the filter supplied by tinting or coating the container wall with a coloured coating, for instance a glass flux of low melting point. Specifications 372,827 and 396,601 are referred to. The Specification as open to inspection under Sect. 91 also describes filters for use with materials which are phosphorescent under daylight, the filters being opaque to those rays which cause the phosphorescence. A filter opaque to blue light may be used with a screen coated with zinc sulphide as the fluorescent material, the blue rays being those which would cause phosphorescence in daylight. This subject-matter does not appear in the Specification as accepted.
Patent GB-321281-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M5/08
Filed: 1928-09-25
Abstract: 321,281. Carborundum Co., Ltd., (Car. borundum Co.). Sept. 25, 1928. Addition to 257,261. Walls; cooling. - The furnace lining of the Parent Specification is cooled to a, temperature at least 100‹ C. below the flame temperature but above 400‹ C., and water circulating pipes may be provided with the air circulating passages in the wall. Fig. 5 shows water pipes 38 connected between headers 39, 40 in the air circulating space 10 between the silicon carbide lining 8 and the outer shell 9 of a boiler furnace lined by a pulverulent fuel burner 16 supplied from a hopper 3 by a pulverizer 2. Air is supplied to the space 10 by a fan 11 and heated air passes to the burner by a pipe 14. The water heated in the pipes 38 may be supplied as feed water to the boiler or the pipes 38 may be connected to the boiler circulation. The rate of flow of air and water is regulated to control the amount of cooling in accordance with the rate of combustion. Fig. 6 shows air passages 48 in the silicon carbide lining 45 containing pipes 49 through which cooling fluid circulates and which also serve to reinforce the wall. Separate air and water passsages may be arranged in the wall. Staggered pipes 50, Fig. 7, may be arranged in the air space 51 to impart a turbulent flow to the air. The lining may comprise blocks 60, Fig. 13, having portions 65 adapted to project between the water cooling pipes 66 each block having a recess 67 into which a pipe 66 takes, and alternate rows of blocks having the projection 65 reversed. Movement in the plane of the furnace wall is prevented by tongues and grooves. Fig. 14 shows blocks 70 having portions 71 projecting between the tubes and secured by metal straps 72 taking in grooves 71' in the blocks and bearing against the tubes. By having grooves 71<1> on both the upper and lower surfaces of the blocks as shown in Fig. 16 one strip 72 may serve to hold two blocks in place. The blocks may be provided with curved projections and placed in the wall structure by turning them about the cooling pipes.
Patent GB-805614-A (GB)
Title: Gas fires
Inventor: HILL HENRY ROWLAND
IPC: F24C3/04
Filed: 1956-09-10
Abstract: 805,614. Gas heaters. RADIATION, Ltd. Aug. 29, 1957 [Sept. 10, 1956], No. 27575/56. Class 126 A gas fire adapted to be suspended in an overhead position has a tubular, rectangular, main part or frame having a lower horizontal member a carrying burner nipples b and an upper member c which has a central connection d to the end of a suspensory gas supply pipe e having gas control means f. A pair of sheet metal frames o depend from the tubular frame by means of end members i having lugs j which engage seatings g on the upper member c. Each frame o is of inverted boxlike form open at its under side and has its lower edges upwardly bent to support a sub-frame or drawer p which carries a radiant q. The combustion products flow into a tapering combustion space t between a refractory slab r and the radiant q and thence through a hole s in the slab to a discharge hood u extending through the frame o. The frames o and the tubular frame are enclosed in removable decorative cover pieces v, w of enamelled sheet material.