baber/WOPTO huggingface dataset:
Patent GB-279795-A (GB)
Title: Improvements in or relating to loud speakers
IPC: G10K11/02
Filed: 1927-08-05
Abstract: 279,795. Lu, F. C. Oct. 26, 1926, [Convention date]. Loud-speakers.-A loud-speaker comprising the combination of a horn 1, a coiled tone arm 2, a sound box 3 whose axis is substantially perpendicular to that of the horn, and a support 4, has the horn, tone arm and sound box adjustably mounted as a unit on the support. The horn and tone arm are made of aluminium and are coated with Spanish white and then lacquered and varnished. The support 4 grips the tone arm by two clamping jaws adapted to be tightened by a screw 5. The sound-box is adjustable, and the diaphragm preferably comprises a disc of mica joined to' a small disc of metal.
Patent GB-503594-A (GB)
Title: Improvements in devices for diffusing and distributing air
IPC: F24F13/062
Filed: 1938-07-27
Abstract: 503,594. Centrifugal and screw fans; ventilators. HUGHES, B. D., and FORD, E. L. July 27, 1938, No. 20732/37. [Class 110 (i)] [Also in Group X] An air deflector, Fig. 4, disposed at the outlet of a fan 1 or ventilating aperture comprises a shallow trumpet-shaped member 5 so placed that the air flows on both sides of the member, the smaller diameter of which lies between four and eight times its depth. The deflector may be arranged eccentric to the fan axis or the aperture and its flare may vary uniformly between diametrically opposite points. Several members 6 may be disposed one within the other, and at equal distances apart, and the members may be circular, rectangular, or diamond shape. A central convex deflector 7 may face the air stream. To obtain a partial back-flow, the outer ring 17, Fig. 14, may be semicircular in crosssection, the peripheral edge extending beyond the path of the tip of the fan blade. The inner members may extend for only half the circumference of the outer member. The deflector may be adjustable axially.
Patent GB-774885-A (GB)
Title: Process for the production of aromatic o-hydroxydiazo compounds, and the products
IPC: C07D271/04
Filed: 1954-07-16
Abstract: o-Hydroxy diazonium compounds are made by neutralizing a mineral acid solution of a compound of formula: <FORM:0774885/IV(b)/1> in which the benzene ring may be further substituted and where R1 is a substituent which has an attracting influence on the pair of electrons linking the substituent to the residue of the diazonium compound, and R2 is an organic radicle, bound by a carbon linkage to the sulphur atom.  Neutralization, said to occur at about pH 4, is preferably effected to pH 6-11. Preferably R1 is a nitro group and R2 a low molecular weight alkyl group.  If R1 is not a nitro group but e.g. a halogen atom, then advantageously the benzene ring contains a further substituent, e.g. a halogen atom or a sulphonic acid group, the latter preferably in the 6-position, which has an attracting influence similar to that of R1.  Specified further substituents for the 3-, 5- or 6-positions of the benzene ring are halogen atoms or methyl or methoxy groups.  Preferably R2 is an alkyl group although it may be an alkenyl, aralkyl, aryl or cycloalkyl group.  Specified groups for R2 are methyl, ethyl, propyl, n-butyl, chloromethyl, hydroxypropyl, vinyl, benzyl, phenyl and cyclohexyl groups and the phenyl group may contain substituents such as halogen atoms and alkyl, alkoxy, carboxyl and sulphonic acid groups.  The starting compounds are obtained by diazotizing the relevant amine in the usual fashion. o-Nitranilines may be indirectly diazotized provided they contain water-solubilizing substituents otherwise they are advantageously diazotized in sulphuric acid with dry sodium nitrite or nitrosyl sulphuric acid.  Neutralization is effected in the cold with alkali lye or salts of weak acids having an alkaline action, e.g. alkali metal carbonates and bicarbonates.  The products are used for the preparation of metallizable dyestuffs which are advantageously prepared without isolation of the diazoxide and directly the latter is made.  Examples are provided illustrating the preparation of diazonium compounds from certain of the above specified aminosulphones.  Specification 774,884 is referred to.
Patent GB-881028-A (GB)
Title: Sealing device for thermoplastic films
Inventor: BROOK LEONARD
IPC: B65B51/32
Filed: 1959-06-17
Abstract: 881,028. Seaming non-metallic sheet materials. FORGROVE MACHINERY CO. Ltd. May 23, 1960 [June 17, 1959], No. 20853/59. Class 42 (1). [Also in Group XVII] Apparatus for advancing and sealing packages having overlapping thermoplastic wrapper portions at opposite ends comprises opposed belts 12 bearing plates 13, each plate having a flexible diaphragm 14 which is pressed against the packages by reciprocating heaters 15. The diaphragms may be of glass fibre or thin copper sheet and the plates may be domed, as shown, to depress the package ends. Reciprocating member 16 and/or air jets 17 may cool the seals.
Patent GB-1287067-A (GB)
Title: Improvements in or relating to devices for determining charge in a lead/acid cell
IPC: H01M10/48
Filed: 1971-04-19
Abstract: 1287067 Measuring electrolyte density TUDOR A B 19 April 1971 [4 Feb 1970] 20872/71 Headings G1N and G1U Since electrolyte conductivity H, Fig.1 (e.g. that of dilute sulphuric acid in a battery, varies with its density P in the manner shown, in order to determine the density of a specimen of electrolyte by measuring its conductivity, firstly a measurement of its conductivity is made, secondly the density of the electrolyte is decreased (or increased), and finally a second measurement of conductivity is made and if this value is lower (or higher) than the first value then the density corresponds to a point such as P 1  on the graph, while if the second value of conductivity is higher (or lower) than the first value the density corresponds to a point such as P 2 . A device for use in performing the above measurements comprises a glass tube, Fig. 2, containing two pairs of measurement electrodes 2 and a pair of discharging or charging electrodes 5. In use the tube is immersed in the electrolyte, current is drawn from, or passed into the electrodes 5 so as to change the density of the neighbouring electrolyte, gas bubbles 8 are passed up the tube, and conductivity measurements are made by the pairs of electrodes 2, that made by the upper pair being used to determine to which point P 1  or P 2  the measurement from the first pair relates.
Patent GB-371703-A (GB)
Title: Improvements in or relating to revolving internally heated cylinders or like vessels
IPC: D21F5/10
Filed: 1931-07-22
Abstract: 371,703. Hollow rollers. WATSON, J., 72, Newhaven Road, Leith, Edinburgh. July 22, 1931, No. 20910. [Class 34 (i).] A revolving cylinder is heated internally by steam or other vapour and the condensate is collected by a rising and falling or rotating scoop provided with a condensate outlet with drain-valve. The drain valve is automatically opened and kept open by means of a cam on the hollow trunnion of the cylinder while the scoop is traversing the upper part of its path. The steam pressure may be employed to keep the drain-valve in closed position when not acted upon by the cam. The device may be applied to the steam heated rollers of papermaking machinery or to similar calendering or drying cylinders. As shown in the Figures, a revolving cylinder 4 is provided with an internal scoop 5 which collects the condensate and discharges through a radial pipe 6 into the hollow trunnion 7, pipe 10, and drain 8. A spring-loaded valve 9 fitted in the pipe 10 has a valve-spindle 11 connected to one end of a lever 12, the other end of which carries a roller 13 adapted to coact with an adjustable cam 14 mounted'on the trunnion 7. The valve is normally closed by the pressure of the steam and the spring 15 but is opened while the scoop is traversing the upper part of its path by the action of the cam. The cam may be of the form shown in Fig. 3. A horseshoe-shaped member 16 is adjustably bolted to the end of the trunnion by bolts 18. The cam 14 is adjustably bolted to the member 16.
Patent GB-209307-A (GB)
Abstract: 209,307. Record, J. W. Jan. 30, 1923. Electromagnetic current and pressure meters; resistance meters.-In a moving-coil instrument with a permanent magnet, the pole-pieces are sheet-iron stampings a attached to aluminium or other thin metal frames D formed with flanges d by which they are secured to the base or case of the instrument. Each frame D is provided with an opening into which fits a magnet or a pair of magnets C attached by screws or a metal strap &c. to the pole-pieces a, preferably by screws passing through the space between a pair of magnets, to avoid drilling. One of the pole-pieces a carries a bracket b<2> supporting the core B and also a bracket G carrying the moving system. Alternatively the bracket G may be carried by the core B. The magnets C may be straight or curved. The pole-pieces a may be shaped so that one almost encircles the other, so as, to give an extended scale, or they may be extended at one or both sides or ends as required for the pressure coil of an ohm-meter, or for two cores. A dust cover of metal or insulating material may be placed over the top and bottom so as completely to enclose the parts except for a slot for the pointer. In an ohm-meter the lower dust cover is in the form of a cylinder with the resistance coil wound on the outside.
Patent GB-315413-A (GB)
Title: Improvements in or relating to the manufacture of artificial leather
IPC: C08L89/06
Filed: 1929-07-08
Abstract: 315,413. Soc. Invenzioni Brevetti. July 14, 1928, [Convention date]. Leather compositions are prepared by pulping leather straps, waste or refuse cuttings of hides and skins into small bundles of fibres in the presence of large quantities of water, adding vegetable or synthetic tannins, which cause a pseudo vulcanization of the subsequently added latex, preferably tannins of the pyrogallic series such as sumach, as well as oils or greases or their compounds soluble in or capable of emulsifying with water, and then adding latex, finally placing the fibres on a perforated support and separating the liquid so as to form a sheet within an hour from the addition of the latex. Where chrome leather shavings or cuttings containing acid are used, the raw material is initially neutralized by an alkali such as sodium borate at a temperature of between 30‹ C. and 60‹ C., and washed. To increase the tensile strength of the final product the shavings or cuttings are treated, preferably during disintegration, with seignette salt or cream of tartar to partly detan and swell the leather. In this event the percentage of tannin is preferably reduced to the minimum required to preserve the latex product. To obtain a very soft artificial leather, glucose with or without dextrine is added; this effect may also be obtained by adding to the pulp before the latex treatment and preferably before tanning, chrome liquor and a solution of potash alum or aluminium sulphate and then neutralizing. To increase the separation of the liquid during the final sheeting, sodium chloride, which may be followed by a mineral tanning, is added during or immediately after disintegration. In an example suitable proportions in kilogrammes of ingredients for an extra strong artificial leather are :-dry shavings chrome tanned leather 60, Neutrol (for removing acid) 8.5, seignette salt 2, chromine 12, neutrol soap 6, glycerine 3, sumach extract 10, forty per cent latex 30.
Patent GB-437468-A (GB)
Title: Improvements in joints for electric cables
IPC: H02G15/24
Filed: 1934-07-18
Abstract: 437,468. Cable joints. BEAVER, C. J., Bell Place, Stamford Road, Bowdon, DAVEY, E. L., 37, Greenway Road, Timperley, both in Cheshire, and GLOVER & CO., Ltd., W. T., Trafford Park, Manchester. July 18, 1934, No. 21027. [Class 38 (i)] The sheaths 3 of cables of the type in which fluid pressure, e.g. gas pressure, is maintained within the sheath, are connected at a joint by a pipe 6 that byepasses the joint. The sheath 3 is cut back from the joint and fitted with a stress cone 8 of lead within which is sealed an insulating tube 9 that maintains the fluid pressure over the bared insulation 2, the end of the tube 9 being closed by the silk or varnished cambric wrapping 11 of the joint 10, the pressure fluid seeping slowly through the wrapping. The pipe 6 lies in a groove provided in the casing 4 which is joined at the centre 5 and filled with compound. A reinforcing wrapping 16 consisting of two layers of tape to strengthen the lead sheath against the fluid pressure, is resiliently connected to the box 4 to allow slight creeping, by means of U-pieces of wire 18 bound by wire 19 and soldered to the wrapping 16 and attached to eyebolts 13 mounted with tensioning springs 14 in lugs 12.
Patent GB-1151124-A (GB)
Title: Improvements in Hair Dryers.
IPC: A45D20/22
Filed: 1967-05-05
Abstract: 1,151,124. Hair dryer. LUMALAMPAN A.B. 5 May, 1967 T6 May, 1966], No. 21079/67. Heading A5R. A hair dryer comprises a helmet 1 and fan 4 for blowing air heated by elements (not shown) onto the user's head 11 is provided with a shield 6 having a series of vanes 7 and with deflectors 9 for directing the heated air inwardly away from the sides of the helmet. Louvres may be used instead of vanes, and both may project from the lower face of shield 6. The latter may be provided with apertures 12 for recirculation of air, and the helmet may be provided with a deflecting rim 13 at its lower end.
Patent GB-935544-A (GB)
Title: Improvements in or relating to gas turbine jet propulsion engines
IPC: F02K3/11
Filed: 1960-06-16
Abstract: 935,544. Jet propulsion plant. K. H. GREAGER. June 16, 1960 [June 28, 1959], No. 21181/60. Class 110 (3). In a gas turbine jet propulsion engine of the by-pass type, combustion equipment is disposed in the by-pass duct and valve means are provided to control the air supplied to the by-pass combustion equipment. The main combustion equipment, also the by-pass combustion equipment, are each of the kind comprising a plurality of combustion chambers or flame tubes. The engine shown in Fig. 1 comprises an air compressor 6, main combustion equipment 1 comprising a circumferential series of separate combustion chambers, and a turbine 8 driven by gases from the combustion equipment 1 and driving the air compressor 6. The exhaust gases from the turbine pass to the jet pipe 15. A portion of the air delivered by the compressor is by-passed through ducts 19 having control valves 18 and flows through combustion chambers 9 where fuel is burned in it, the resulting gases passing through outlets 14 and being guided by vanes 16 to intermix with the turbine exhaust gases in the jet pipe 15. In a second embodiment, Fig. 4, the by-pass combustion chambers 9 are disposed further downstream and the gases therefrom flow through an annular duct 22 disposed around the turbine exhaust duct 24; apertures 23 are provided in the wall of the duct 24. The by-pass combustion chambers 9 are connected to the main combustion chambers by pipes 17, whereby ignition of the gases in the chambers 9 may be effected.
Patent GB-1044602-A (GB)
Title: Improvements in and relating to high alloy steel welding wires
IPC: B23K35/30
Filed: 1965-05-19
Abstract: 1,044,602. Welding by fusion; making electrodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 19, 1965 [May 22, 1964], No. 21197/65. Headings B3A and B3R. A welding wire for use in flux-submerged or gas-shielded arc welding to deposit a high alloy steel consists of a mild steel or a low alloy steel tube and a filler of powdery material, the filler comprising at least 80% of a non-magnetic metal or alloy and a small percentage of a ferromagnetic material. Such wire may be made by rolling and/or drawing an ingot cored with the filler or by wrapping a strip around the filler and drawing to size. The composition of the filler enables a magnetic check to be performed on the wire during manufacture to test for the presence of the filler. A wire for depositing 20% Cr, 10% Ni steel consists of 45% mild steel tube, 5% iron powder and 50% of a powdered steel alloy containing 40% Cr, 20% Ni. Other wires may deposit Cr, Ni, Mo steel or 13% Mn steel.
Patent GB-1459736-A (GB)
Title: Band conveyor with intermediate drive
IPC: B65G23/24
Filed: 1975-05-19
Abstract: 1459736 Driving conveyer belts FRIED KRUPP GmbH 19 May 1975 [20 May 1974] 21226/75 Addition to 1435336 Heading B8A The conveyer of the parent Specification 1,435,336 is modified by providing a driving belt 8<SP>1</SP> which is less in width than the width of the rollers 2<SP>1</SP> of the upper conveying run.
Patent GB-186897-A (GB)
Title: Improved water-heating apparatus
IPC: F24H1/10
Filed: 1922-08-03
Abstract: 186,897. Meker, G. A. H. Oct. 7, 1921, [Convention date]. Heating water.-Water from a shallow hemispherical chamber 2 passes through an atomizing jet 3 and cone 4 to a collecting chamber 5 entraining wi th it the products of combustion from circularly-arranged gas burners 9 protected from the jet by the cylinder 11. Hot water flows away at 6 and cooled gases at 7.
Patent GB-600331-A (GB)
Title: Improvements in desks
IPC: A47B17/03
Filed: 1945-08-20
Abstract: 600,331. Desks. CORNISH, I. R. Aug. 20, 1945, No. 21239. [Classes 52(i) and 52(iii)] The pedestals 2, 3 of a desk are angularly arranged and support a flat top 1 shaped to cover the pedestals and extend between them, the converging side walls 4 of the pedestals being joined to the converging rear walls 7 by parallel walls 8 connected by an intermediate wall 11 and providing leg spaces both at the front and rear. The pedestals contain drawers and a file box 18 mounted for rocking movement. The rear portion 15 of the top projects beyond the pedestals and is strengthened by a rail. A drawer 28 and pull-out shelves 29 are provided under the top, and triangular drawers may be provided at 30.
Patent GB-350773-A (GB)
Title: Improvements in machines for washing photographic prints
IPC: G03D3/02
Filed: 1930-07-15
Abstract: 350,773. Washing photographic prints. RIGBY, Ltd., R. and CROSS, H. J., Premier Works, Little James Street, Bedford Row, London. July 15, 1930, No. 21452. [Class 98 (ii).] Apparatus of the kind comprising a fixed washing tank, and a power-driven rotary perforated drum supported within the tank and adapted to be raised therefrom on its supports, is provided with supports for the drum that can be raised out of and lowered into the tank by means such as a footlever, and with a driving wheel which engages the rim of the drum and is carried by a lever which can be swung about its fulcrum to disengage the wheel from the drum without disconnecting the wheel from the driving motor. Preferably, the lever is adapted to be thrown out of driving engagement with the drum when this is raised, and to be returned into engagement therewith when the drum is lowered. As shown, the drum b has trunnions cresting in open slots in links d connected to levers e pivoted at r inside the tank a, and to levers f which are pivoted at s to the frame supporting the tank and are connected by a link g to a foot-lever h fitted with a buffer spring i and adapted to co-operate with a catch j on the frame. Bearing upon the rim k of the drum is a rubber friction wheel carried by a lever q pivoted to the frame at s, and driven by belt and pulley gear m, n, o from a motor p. On depressing the footlever h until it is held by the catch j, the drum is raised from the tank, and the lever q is thrown back against a stop f<1> on the lever f, in which position the wheel is out of engagement with the rim of the drum. On releasing the foot-lever from its catch, the drum descends into the tank, and the stop f<1> throws the lever q back again so that the wheel l re-engages the rim of the drum.
Patent GB-1041862-A (GB)
Title: Improvements in or relating to ergolene derivatives
Inventor: HOFMANN ALBERT
Filed: 1963-05-30
Abstract: Novel urethanes of the formula <FORM:1041862/C2/1> and their acid addition salts, wherein R1 is an alkyl (C1- 4) or aralkyl (C7- 10) radical, R2 is an alkyl (C1- 4), aralkyl (C7- 10) or cycloalkyl (C5- 7) radical, wherein the alkyl group may bear a halogen, hydroxyl or secondary amino substituent and \sG is a <FORM:1041862/C2/2> group, are made by reacting a 1-alkyl or 1-aralkyl ergolene isocyanate with an alcohol R2OH or by reacting the appropriate ergoline-8-urethane with a compound R1-Halogen, and if necessary converting the product to its salt with an organic or inorganic acid.  Ergolinyl and ergolyl-8-isocyanates used as starting materials are made by treating the appropriate lysergic acid hydrazide with nitrous acid and reacting the resulting azide with the alcohol R2OH.  The 1-unsubstituted isocyanates are converted into the corresponding 1-unsubstituted urethanes by reaction with an alcohol R2OH. Pharmaceutical preparations having anti-serotonin activity, for the treatment of migraine and similar illnesses, comprise the above compounds of the invention and an inert carrier.
Patent GB-965101-A (GB)
Title: Panoramic motion picture projection apparatus
IPC: G03B37/00
Filed: 1961-06-15
Abstract: 965,101. Panoramic cine projections. WALT DISNEY PRODUCTIONS. June 15,1961 [Nov. 21, 1960], No. 21599/61. Heading G2E. [Also in Division H2] In a cycloramic theatre a cylindrical viewing screen 12 is made up of a plurality of individual arcuate screens 13 separated from each other by non-light reflecting strips 15. Each of a number of film projectors 17 has its lens aligned with an opening 16 to project an image upon the opposite screen. Each of the strips 15 is also provided with an observation opening which may be covered by a light-shielding hood. The images are projected substantially diametrically across the circular screen, with each projector directed normally to the chord of its own individual arcuate screen. Individual control cables are led to a common control panel 21. A self-synchronous receiver motor drives each projector, a common self-synchronous transmitter being associated with said receivers so that the individual projected images are synchronised collectively to present a single panoramic picture upon the screens.
Patent GB-1152810-A (GB)
Title: Diphenylsulphone Derivatives
IPC: C09D5/25
Filed: 1968-05-07
Abstract: 1,152,810. N - Hydroxyalkyl derivatives of diphenylsulphone tetracarboxylic acid diimides. UPJOHN CO. 7 May, 1968 [25 May, 1967], No. 21621/68. Heading C2C. [Also in Division C3] Novel compounds of formula wherein C n H 2n  represents C 2-6  alkylene and wherein the carbon atoms of each of the imide moieties are bonded to adjacent nuclear carbon atoms in the benzene rings to which the imide moieties are attached, are prepared by reacting an alkanolamine of formula HOC n H 2n NH 2  with a diphenylsulphone tetracarboxylic acid anhydride of formula
Patent GB-1510263-A (GB)
Title: Fruit pitting machine
IPC: A23N4/06
Filed: 1976-05-25
Abstract: 1510263 Stoning fruit DUNKLEY CO 25 May 1976 [22 Sept 1975] 21627/76 Heading A4C A fruit stoning machine, e.g. for cherries, consists of a drum conveyer 11 with rows of cups 12 for individual cherries, the stones being removed by three rows of needles 15 which pass through the cups and orifices 13 in the bases thereof to pairs of jaws 20, 21, a stone if removed camming the jaws apart to generate a signal corresponding to stone removal, and nozzles 33 removing any cherry by a pneumatic or water jet for which a signal was not produced. The needles are star shaped in section and pass between the jaws without moving them, but stones cam the jaws apart by contact with surfaces 24, 26 which are each angled to a respective apex 23, one of which is provided with a slot 25 to receive a blade 18 of its needle. The jaws rotate about shafts 22 and are biased towards each other by springs 29. The signals generated by the jaws are pneumatic, produced by opening a valve 30, and applied to a switch which actuates an electronic memory. A predetermined time after the memory should have received a single, but did not because no stone was removed from a fruit, the memory will actuate a valve causing a nozzle to eject that fruit, the time delay being equal to the time required for the drum to index from the stoning position to the eject position.