baber/WOPTO huggingface dataset:
Patent GB-315498-A (GB)
Title: An improved method of making sheets of glass wool or like vitreous material
IPC: D04H3/12
Filed: 1928-04-26
Abstract: 315,498. Dicker, S. G. S., (Gould Storage Battery Co., Inc.). April 26, 1928. Wadding; compound fabrics and sheet materials.-Spun filaments of glass wool or like vitreous materials are distributed promiscuously in successive layers from a substantially parallel arrangement to form a sheet of uniform thickness and porosity, and adhesive or binder being applied during the process. The sheet may be saturated preferably from both sides with the adhesive or binder which, when the sheet is to be used as a filter, may be soluble in the liquid filtered or may serve as the filtering medium. As shown, the filaments are fed on to a, revolving wire-screen drum 1 mounted in bearings 8 or 9, and when the sheet is of sufficient thickness its edges are trimmed off by a knife held against the drum ends 7 and the sheet is cut across by a knife pressed against the longitudinal ridge 6 of the drum. The drum may be initially coated with adhesive by rotation in the bath 13 and the sheet may be similarly impregnated before it is removed from the drum.
Patent GB-128447-A (GB)
Title: Improvements in and relating to Reflectors and a Method of Making Same.
Inventor: DOBBINS EDWARD JOHN
IPC: F21V7/22
Filed: 1918-07-29
Abstract: 128,447. Dobbins, E. J. July 29, 1918. Bending.-Conical reflectors for use with electric incandescent lamps are made by placing a ring, cut from plain or figured sheet glass, in or upon a conical mould, which is placed in a furnace until the glass has sunk down on to the conical surface. The reflector so produced is afterwards silvered.
Patent GB-974985-A (GB)
Title: Improvements in or relating to the production of polyurethane foams
IPC: C08G18/24
Filed: 1962-03-30
Abstract: Stannous quinolinolate having the formula <PICT:0974985/C1/1> is prepared by adding 8-hydroxy-quinoline to aqueous sodium hydroxide solution and adding stannous chloride to the resultant solution. The compound is used as a catalyst for the preparation of polyurethane foams (see Division C3).ALSO:Polyurethane foams are prepared by reacting together an organic diisocyanate, water and a polyhydric polyalkylene polyether containing 2 to 8 secondary alcohol groups per molecule and having a molecular weight between 500 and 6,000, the reaction being carried out in the presence of stannous quinolinolate of the formula <FORM:0974985/C3/1> (see Division C2) as catalyst. One or more tertiary amines may be used in conjunction with the stannous quinolinolate catalyst, several such amines being specified. Surface-active agents, plasticizers, fillers, reinforcing agents, blowing agents, colouring agents, solvents and anti-oxidants may be added to the reaction mixture. Examples describe the preparation of polyurethane foams from (4) N-ethylmorpholine, triethylenediamine, silicone oil, stannous quinolinolate, water, a polyoxypropylene triol and toluene diisocyanate; (6) as in (4) but omitting the triethylenediamine and N-ethylmorpholine; (8a) polyoxypropylene polyether triol, a polyoxypropylene polyether diol, stannous quinolinolate, triethylamine, triethylenediamine, silicone oil, fluorotrichloromethane, water and toluene diisocyanate.  In comparative examples, (5) stannous octoate is used in place of stannous quinolinolate in the process of example 4; (7) stannous quinolinolate is omitted from the process of example 4.
Patent GB-1345388-A (GB)
Title: 2,3-ketalised-rhamnopyranosides and process for preparing them
IPC: C07J19/00
Filed: 1971-04-30
Abstract: 1345388 Convallatoxin derivatives FARBWERKE HOECHST AG 30 April 1971 [2 May 1970] 12427/71 Heading C2U The invention comprises compounds of formula (wherein R<SP>1</SP> and R<SP>2</SP> are each C 1-4  alkyl, or together with the intervening carbon atom form a carbocyclic or heterocyclic ring; and R<SP>3</SP> is CHO or CH 2 OH) and their preparation from convallatoxin by reaction with R<SP>1</SP>R<SP>2</SP>C(OR<SP>4</SP>) 2  (where R<SP>4</SP> is C 1-4  alkyl), optionally followed by reduction of 19-oxo to hydroxy. The inventive compounds are said to be cardioactive, and may be made up with carriers into pharmaceutical compositions for oral and parenteral administration.
Patent GB-1453401-A (GB)
Title: Communication cables
IPC: G02B6/38
Filed: 1974-03-20
Abstract: 1453401 Light guides PIRELLI GENERAL CABLE WORKS Ltd 20 March 1975 [20 March 1974] 12466/74 Heading G2J A communications cable 1 or 1a (e.g. as described in Specification 1453402) comprises a  plurality of optical fibres 2, 2a each having a liquid core, a pair of caps (not shown) sealing opposite ends of the cable and having respective chambers with which the opposite ends of the optical fibres communicate, and a quantity of the same liquid as the cores filling the chambers under pressure. In the arrangement shown, the end of cable 1 is provided with sockets formed by capillary tubes 9 into which the fibres 2 extend halfway and are secured by resin 11. The fibres 2a of cable 1a extend from capillary tubes 9a, however, so that to join cables 1, 1a together, the end caps (not shown) are removed from each cable, the ends of fibres 2a are inserted into the capillary tube sockets 9 and the jointing zone is enclosed e.g. by sleeves 17, 18. During the joining, core liquid is pumped through the optical fibre cores from the remote ends of the cables.
Patent GB-759212-A (GB)
Title: Flight training apparatus
Inventor: CUTLER ALBERT ERNEST
IPC: G09B9/30
Filed: 1954-04-29
Abstract: 759,212. Flight training apparatus. COMMUNICATIONS PATENTS, Ltd. April 29, 1954, No. 12492/54. Addition to 751,628. Class 4. In a modification of flight training apparatus as claimed in the parent Specification the model ship is replaced by a model aircraft to provide training in aircraft interception. The shaft 61, which corresponds to the movable table of the parent Specification, carries a pivot 62 at its upper end to support a cruciform plate 63 secured to the underside of a model aircraft 60. The fore-and-aft arms of the plate are connected to a cable 65 which runs over pulleys 70, 71 and 72, the pulley 71 being driven by a motor unit 73 to which are applied signals representative of the pitching angle of the aircraft which the model represents. Similarly, the transverse arms of the plate are connected by a cable 64 and pulleys 66, 67 and 68 to a motor unit 69 which controls the rolling movement of the model. The shaft 61 may be rotated about its own axis and tilted by the mechanism described in the parent Specification so that any aspect of the model may be presented to a student pilot by the television camera and projector apparatus described in the prior Specification.
Patent GB-848901-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BAUER STEFAN GEORGE
IPC: G21C1/24
Filed: 1947-05-08
Abstract: 848,901. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. April 26, 1948 [May 8, 1947], No. 12529/47. Class 39(4). An element of a core of a nuclear reactor comprises a body of moderator material having fissile material dispersed in it, the proportions of moderator and fissile material preferably being the same as in the core as a whole. The element may be a shaped body or compact made of a mixture of refractory compounds, such as oxides or carbides, of beryllium or aluminium and one of the fissile isotopes of uranium or plutonium sintered or otherwise bonded together. In one arrangement, Fig. 1, the core structure comprises shallow open-ended boxes 1 of moderator material, for example beryllium oxide, with parallel partitions 2 traversing them. Plate elements 4 of moderator material with fissile material dispersed in them are slid into grooves formed in the boxes. Baffle sheets 5 of beryllium are arranged to extend diagonally across the space between the boxes so that coolant gas fed to one side of the row of boxes flows over one face of each baffle and through the adjacent box to the baffle at the other end of the box. In another arrangement, Fig. 4 (not shown), the fuel elements are in the form of hollow slabs. The fuel elements may be in the form of marbles of beryllium oxide containing fissile material and may be used in the reactor shown in Fig. 5. The core vessel 18 is made of beryllium oxide and suspended from a cover plate 16. Fuel elements are fed into the core through a tube 21 and out through a tube 25. The core is surrounded by a reflector comprising marbles of beryllium oxide which may contain thorium and which are fed into the reflector space by a tube 28 and out through a tube 29. Tubes 27 allow control rods to be inserted and a gas coolant may be passed through the reactor from an inlet 13 to an outlet 15.
Patent GB-1259916-A (GB)
Title: Anthraquinone dyestuffs
Inventor: NEEFF RUTGER
IPC: C09B1/514
Filed: 1970-03-16
Abstract: 1,259,916. Anthraquinone dyestuffs containing difluoromethylanilino groups. FARBENFABRIKEN BAYER AG. 16 March, 1970 [19 March, 1969], No. 12638/70. Heading C4P. The invention comprises dyestuffs of the general formula wherein one X is OH and the other is amino or nitro, and R is H or Cl. They are prepared by reacting a 4,8-dinitro-1,5-dihydroxy- and/or 4,5-dinitro-1,8-dihydroxy-anthraquinone with an optionally mono 4,5 or 6-chlorinated 3-difluoromethyl aniline at 100-220 C. optionally in presence of an inert diluent or in the aniline compound as reaction medium, and subsequently if desired the nitro group is reduced to amino. The dyes are used to dye polyesters, polyamides, polyurethanes, polyacrylonitrile, polyolefins and cellulose 2¢ and triacetates and also unions with cotton in admixture with reactive dyes.
Patent GB-214842-A (GB)
Title: Improvements in means for anchoring nets and the like to the ground
IPC: E04H15/62
Filed: 1923-05-10
Abstract: 214,842. Southall, F. G. May 10, 1923. No Patent granted (Sealing fee not paid). Ground anchors.-Nets are secured to the ground by means of a length of grooved material a pointed at the lower end and bent back on itself at the upper end to form a crook b.
Patent GB-219425-A (GB)
Title: Improvements in side and rear wind screens for use on vehicles
IPC: B60J1/00
Filed: 1923-05-10
Abstract: 219,425. Standard Motor Co., Ltd., and Maudslay, R. W. May 10, 1923. Wind-screens.-In a vehicle wind-screen of the kind which is adapted either to be mounted on the door to serve as a wind-screen and to move with the opening and closing movements of the door or to be arranged transversely to serve as a screen for the passengers in the rear seats, a pivotal mounting C is arranged near the rear edge of the screen A about which the screen can turn when it is to be used transversely, its front edge being then engaged with a bracket E on the front seat which automatically releases the screen if the door should be opened. Preferably the screen is provided on its lower edge with studs or pillars C, C<2>, normally engaging corresponding sockets D, D<2> in the doors B, but the studs C<2> may be arranged within clamping jaws E<2> on the bracket E, such jaws opening towards the door B. In the latter position a triangular apron G attached to the lower edge of each screen is extended to cover the triangular space existing between the. screen, door and front seat.
Patent GB-1421315-A (GB)
Title: Watercraft and a method for removing liquid contaminants from the surface of a body of water
IPC: E02B15/04
Filed: 1974-03-21
Abstract: 1421315 Scavenging vessels for removing oil from water CO BA DI COSTRUZIONI BATTELLI DISINQUINATI SpA 21 March 1974 [27 March 1973] 12607/74 Heading B1D [Also in Division B7] A scavenging vessel having two or more hulls also has at least one inverted open bottomed channel between each pair of hulls, which in operation is immersed and has a plurality of transverse, forwardly and downwarlly inclined fins and longitudinal fins which cooperate to define zones in the channel where oil accumulates as the vessel moves through the water and is moved therefrom to tanks within the hulls. The vessel is ballasted to immerse the channel or channels prior to operation. In a first embodiment (shown in Figs. 2, 3 and 5) the vessel has two side hulls 2 interconnected by a central hull part 3 having a V- shaped transverse section which with the side hulls 2, defines two inverted channels 5. Each channel is divided into a plurality of separate sections by transverse fins 11 and each of these sections has longitudinal fins 10 and further transverse fins 12 whose upper edges are spaced from the top of the channel to define a passage 12a in which oil collects. The oil is then sucked through apertures 6 into a manifold 8 which leads to a plurality of intercommunicating decantation tanks within the adjacent respective side hull. Within these tanks, the lighter oil collects in the upper regions and is drawn off into a settling tank whilst the water in the bottom of the decantation tanks is discharged overboard by a pump. The lower region of the settling tank is in comunication with the bottom of the decantation tanks by an aperture in the common bulkhead so that decontaminated water which has settled out from the oil is also discharged overboard. In a second embodiment (not shown) the central hull part 3 has an inverted V profile defining only a single inverted channel 5 at its vortex. Ballasting: Prior to arrival at a polluted area, the decantation tanks are half empty so that the vessel has a first waterline LN (Fig. 3), but once the area is reached these tanks are filled to sink the vessel to a waterline LF so that the inverted channel or channels is immersed.
Patent GB-543068-A (GB)
Title: Improvements in or relating to electrical counting systems
IPC: G08C15/00
Filed: 1940-08-06
Abstract: 543,068. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., and BARNARD, R. M. Aug. 6, 1940, No. 12643. [Class 40 (i)] [Also in Group XIX] In a system for registering the number of hostile aircraft over a given area, impulses of current of either of two frequencies according as the aircraft are entering or leaving the area are sent from a number of observation posts to actuate individual counters at a central station, and the actuations of the counters individual to various posts are transferred in succession to an aggregating counter. The counters are of the kind in which a toothed wheel is acted on by three pawls in turn, two of the pawls being controlled by electromagnets and the direction of rotation being determined by which of these two pawls comes into action first. Actuation in either direction of the sending key K at an observation post connects a condenser C1 or C2 in the circuit of a valve oscillator 0 to send current of either of two frequencies to the central station. At the same time a local counter S2 is stepped forward or backward under the control of magnets SE, SF. At the central station the two frequencies are separated by filters Fl, F2 and effect the forward or backwcrd movement of a counter SIAC under the control of magnets SA, SB. The counter SIAC is coupled to a rotary switch SIA of which the wiper moves over studs connected to tappings on the secondary of a mains transformer, while a second similar counter SIBC is coupled to a similar switch SIB, and the wipers of the two switches are connected through polarised relays C; D so that one or other becomes operative when the counter SIAC and switch SIA move in response to impulses from the observation post. A rotating switch M2 associates each individual counting mechanism in turn with the aggregating counter M1, and when a relay C or D is found operative the switch M2 is arrested and circuits are made for stepping the counter M1 in unison with the counter SIBC in the appropriate direction until the switch SIB occupies the same position as the switch SIA. As a modification, instead of having a separate switch SIB, the stepping of the counter SIBC may rotate the studs of the switch SIA to follow up the movement of the wiper.
Patent GB-1112834-A (GB)
Title: Barrier-layer rectifiers
Inventor: RAYMOND FREDERICK JOHN
IPC: H01L29/00
Filed: 1967-03-17
Abstract: 1,112,834. Barrier-layer rectifiers. STANDARD TELEPHONES & CABLES Ltd. 17 March, 1967, No. 12675/67. Heading H1K. Barrier-layer rectifying cells are produced in which the active rectifying area is substantially less than the area of the metal base-plate. Rectifier stock consisting of a steel or aluminium backing 14 bearing selenium 16 and counter electrode 17 layers is placed face down on a die and the backing hit by a punch of larger area than the die so that material is extruded to separate a central rectifying unit 16a, 17a from the remainder. The disc may be separated from the stock before or after this punching operation. Though the stock may be previously formed, short-circuit removal and re-forming are carried out after punching. The rectifier cells may be stacked in pressure contact within insulating housings.
Patent GB-202008-A (GB)
Title: Improvements in and relating to die forging or stamping metals, and metal alloys
IPC: B21K1/14
Filed: 1922-05-05
Abstract: 202,008. Dean, S. W., and Extruded Metals Co., Ltd. May 5, 1922. Pipes and tubes.-In forging pipe fittings a loose die is used, and this is automatically locked in position during the actual operation. A hot or cold length of metal rod is inserted in a hole in the top of a die 12, which with its lower half 13 rests on an ejector 34, Fig. 3, supported by rods 29, 31 Fig. 1 from the press-head 7. When the press-head is moved down by fluid pressure, hand or mechanical means, it first lowers the die 12, 13 into The holder 10, then releases spring pressed lock bolts 15, Figs. 4 and 5 by pushing down forked cam slides 21, then engages ribs 39 on slides 37, Fig. 3, by guides 43 and slots 40 of its cam-operated slides 41 to advance mandrels 36 into the die, and finally pierces the blank with the punch 47 and forces it into all parts of the die by means of an enlargement 26. On the return of the press-head, the rod 29 acts through a bar 27, Fig. 5, to lift the cam slides 21 and withdraw the bolts 15, and then ejects the die so that the half 12 can be lifted off bv a fork engaging grooves 49, Fig. 3, therein and the finished article removed. The slots 40 may be formed to advance the mandrels 36, and then hold them stationary during the forging operation, or enlargements may be formed on the mandrels 36 similar to that on the punch 47. The mandrels 36 may be at an angle and may vary in form, and more than two mandrels may be provided.
Patent GB-562374-A (GB)
Title: Improvements in and relating to means for the production of ultra-violet light rays
IPC: H01J61/44
Filed: 1942-09-10
Abstract: 562,374. Metallic - vapour lamps. NEONELECTRIC CO., Ltd., and SCARFF, O. P. Sept. 10, 1942, No. 12802. [Class 39 (i)] A source of ultra-violet light unmixed with visible light comprises a low pressure mercury vapour discharge surrounded by an envelope of black glass which excludes visible light, and a layer of luminescent material such as calcium tungstate interposed between the discharge and the envelope to convert short ultra-violet rays which will not pass the envelope into useful rays of longer wave-length which will pass.
Patent GB-580351-A (GB)
Title: New dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1944-07-05
Abstract: Acid dyestuffs of the anthraquinone series are prepared by reacting in an aqueous or alcoholic solution or in a mixture of these a 2 : 6- or 2 : 7-disulphonated 1-amino-4-halogen-anthraquinone with a monoacylamino-aniline of the general formula <FORM:0580351/IV/1> where R is hydrogen or a methyl group, in the presence of copper or a salt thereof and in the presence of an acid binding agent. Alternatively the above aniline compounds may be reacted with a 6- or 7-sulphonated 1-amino-2 : 4-dihalogenanthraquinone and the product treated with a sulphite.  Amines mentioned include p-aminoacetanilide, m-aminoacetanilide p - amino - methyl - acetanilide, 3 - acetylamino-p-toluidine, 3-acetylamino-2 : 4-dimethylaniline, 3 - acetylamino - 4 - methyl - carboxy - aniline, 3-acetylamino-4-chloraniline, 2 : 6-dimethyl-3-acetylamino-aniline. Anthraquinone compounds mentioned include 6- or 7-sulphonated 1-amino-2 : 4-dibromanthraquinones or a mixture thereof, 6- or 7-sulphonated 1-amino-2 : 4-dichloranthraquinones or a mixture thereof, 2 : 6- or 2 : 7-disulphonated-1-amino-4-brom-anthraquinones or a mixture thereof, 2 : 6-or 2 : 7-disulphonated-1-amino-4-chlor-anthraquinones or a mixture thereof. In examples: (1) the sodium salt of 1-amino-4-bromanthraquinone-2 : 7-disulphonic acid is heated in aqueous alcoholic solution with p-amino-acetanilide in the presence of powdered copper and sodium bicarbonate.  The 2 : 6-disulphonic acid may be used to produce a slightly less greenish blue.  (2) The sodium salt of 1-amino-4-brom-anthraquinone is treated as in example 1 with acetylamino-4(methylcarboxy)-aniline. The 2 : 6-disulphonic acid may in this case also be used.  (3) As in example (2) but using 3-acetylamino-4-methyl aniline instead of 3-acetylamino-4(methylcarboxy)-aniline.  A mixture of the 2 : 6- and the 2 : 7-disulphonic acids may be used.  (4) As in example (2) but using 3-acetylamino-4-chloraniline as the amine.  The 4-bromanthraquinone may also be replaced by the 4-chlor compound. (5) The potassium salt of 1-amino-2 : 4-dibromanthraquinone-6-sulphonic acid is treated as in example (1) with 3-(methylacetylamino)-aniline and the monosulphonated dye so formed, treated with a solution of a sulphite.  (6) The potassium salt of 1-amino-2 : 4-dibromanthraquinone-6-sulphonic acid is treated as in example (1) with 2 : 4-dimethyl-3-acetylamino-aniline and the product sulphonated by treatment with a sulphite.  The same dyestuffs are obtained by condensing 2 : 4-dimethyl-3-acetylamino-aniline with the 2 : 6- or the 2 : 7-disulphonated-1-amino-4-halogenanthraquinones.  The dyestuffs of this invention may be used for dyeing wool, hair-felt, silk, organic fibres of the nylon type, and leather in greenish blue shades.  Specifications 412,270 and 551,881 are referred to.
Patent GB-332941-A (GB)
Title: Improvements in or relating to variable capacity electric condensers
IPC: H01G5/06
Filed: 1929-04-25
Abstract: 332,941. Dubilier Condenser Co. (1925), Ltd., (Dubilier, W.). April 25, 1929. Condensers, single or multiple, have an auxiliary conducting plate 17 adapted to be warped or bent at one or a number of places to vary its distance from a co-operating plate, the adjustment being effected by screwed members 18 adjustable in a plate 16 on the rear end plate 2. The end of each screw 18 is unthreaded and reduced where it passes through the plate 17 and is riveted over at 23, washers 22 being provided. The condenser frame comprising the end plates, as 2, and pillars, as 3, is preferably of metal, and the moving system is insulated therefrom by making the bearings 8 of the shaft 7 of insulation. The fixed plates may be soldered or cast to the pillars 3, or may loosely fit in recesses therein. Reference has been directed by the Comptroller to Specification 303,758.