baber/WOPTO huggingface dataset:
Patent GB-1235078-A (GB)
Title: Gas electrodes for hydrogen fuel cells
IPC: H01M4/90
Filed: 1969-04-02
Abstract: 1,235,078. Electrocatalysts. BATTELLEINSTITUT C.V. 2 April, 1969 [4 April, 1968], No. 17377/69. Heading B1E. [Also in Divisions C1 and H1] Catalysts for hydrogen fuel cell electrodes are WC containing one or more of Cr, Mn, Fe, Co, Ni or Cu. They are mixed with polyethylene and active carbon and pressed to produce electrodesone face of which may be covered by porous PTFE.
Patent GB-278796-A (GB)
Title: Improved mechanical plucker for tea
IPC: A01D46/04
Filed: 1926-07-12
Abstract: 278,796. Thomson, S. July 12, 1926. Tea, gathering.-The leaf is cut by knives 20 secured to a reciprocating knife bar 19 and co-operating with fixed blades 21. Both sets of blades are carried by a table 8 adapted to straddle the bushes and adjustably mounted on wheels 1, 2, through vertical screws 40. Drive is transmitted from the wheels 1 to a main shaft 11 from which the crank 17 actuating the knife bar is driven and also a shaft 35 carrying a series of arms 36 provided with flexible wiping devices 37 to flick the cut leaves from the knives n to a conveyer belt 26 by which they are carried to a hopper 38. A jockey pulley 43 is fitted to compensate for adjustment in height of the table. In a modification the table is adjusted in height by a lazy-tongs mechanism. A separate motor may be used to actuate the cutting and conveying devices. The wheels 1, 2, may run on rails laid between the rows of bushes. In a further modification the table is carried between side members in the form of an elongated closed loop having bottom members adapted to act as skids, ground wheels also being provided for level ground. The table and its associated mechanism are suspended by a cable between the side frames, and are adapted to be raised or lowered by a winch, a counterbalance being provided to facilitate such adjustment. The machine is drawn by a tractor and the mechanism on the table is driven by a motor supplied with current from a dynamo on the tractor. A petrol or oil engine may replace the electric motor.
Patent GB-1088192-A (GB)
Title: Photographic lens systems
IPC: G02B13/14
Filed: 1965-04-26
Abstract: 1,088,192. Photographic objectives. ERNST LEITZ G. m. b. H. April 26, 1965 [April 25, 1964], No.17457/65. Heading G2J. A photographic lens system having at least two aspherical surfaces has, in the part in front of the diaphragm, one or more positive lenses No. 1 to No (a-1) # 1 with front surfaces V 1  .... V a-1  which are concave to the diaphragm followed by a lens front surface V a  which is also concave to the diaphragm, and, in the part behind the diaphragm, one or more positive lenses No (u-1) # 1 to No. 1 with rear surfaces H u-1  .... H 1 , which are concave to the diaphragm and in front thereof a lens rear surface H u  which is also concave to the diaphragm and is characterized by:- (1) at least one of the surfaces in front of the surface V a , or the surface V a  itself is aspherically shaped so that in Seidel approximation its aspherical contribution to the Seidel coefficient S 1  of the spherical aberration is negative, (2) at least one surface behind the surface H u , or the surface H u  itself is aspherically shaped so that in Seidel approximation its aspherical contribution to the coefficient S 1  of the spherical aberration is also negative, and (3) where n and n' are the refractive indices respectively of media before and behind a common interface, h is the paraxial height and S, S', are the paraxial intersection distances after reduction of the system to a focal length of unity for both the front surfaces V 1  to V a  and for the rear surfaces H u  to H 1  satisfies:- Optical data are provided for the example shown.
Patent GB-515593-A (GB)
Title: Improvements relating to cordless electric irons and heating arrangements therefor
IPC: D06F79/02
Filed: 1938-06-13
Abstract: 515,593. Electrically-heated irons. GUNN, A. J., and DOWSING CO. (Electrical Manufacturers), Ltd. June 13, 1938, No. 17471. [Class 39 (iii)] A double pole control switch 10 is adapted to be actuated by movement of the member 11 when an electric iron is slid on or off the platform 6 of the current-supplying shelf 4, such movement taking place without the aid of springs. The electric iron has terminals 1 which engage the contact-plates 5 when the iron is slid on, said plates being protected by the shrouds 7. Thermostatic control of the heating is effected by the heat-responsive bar 20 which is connected to the screwed rod 23, said rod being provided with an adjusting knob 25 and adapted to operate a micro-switch 28. The pin 33 and screw 34 project forwardly and so prevent the removal of cover 8 when the iron is on the shelf.
Patent GB-519157-A (GB)
Title: Improvements in electric discharge lamps
IPC: C09K11/68
Filed: 1938-06-13
Abstract: 519,157. Luminescent materials. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., and JENKINS, H. G. June 13, 1938, No. 17490. Addition to 495,706, [Group XX]. [Class 39 (i)] One or more low pressure mercury vapour electric discharge lamps are used with luminescent material consisting of (i) a material containing cadmium, manganese, chlorine, phosphorus and oxygen, as set out in Specification 495,706, [Group XX], and (ii) luminescent magnesium tungstate or zinc tungstate or both ; the use of these is set out in Specifications 469,732 and 469,913. These materials may be mixed and used in one lamp or may be used in separate lamps, but their association is such that light obtained therefrom contains in one desired direction a substantial proportion of light from each. Vanadium may be added to material (i) as set out in Specification 509,857. Diffusing reflecting or refracting means may be used therewith. A part of the material in (i) may be replaced by zinc-beryllium silicate activated by manganese ; the use of this material is set out in Specification 480,356, [Group XX]. Specification 515,154 also is referred to. According to the Provisional Specification magnesium tungstate is preferable for material (ii), the reasons therefor being set out in Specification 495,415, [Group XX].
Patent GB-890610-A (GB)
Title: Process for the treatment of textile and like material
Inventor: CHIPALKATTI VASANT BHIMRAO
IPC: D06B19/00
Filed: 1958-06-02
Abstract: <PICT:0890610/IV (c)/1> Textile material is treated by first passing it through a treating liquid, then through a molten metal and finally through a bed of freely movable discrete solid particles maintained in a fluidised state by means of superheated steam or other gas or vapour, the treating liquid not containing any agent that will chemically affect any constituent metal in the molten metal bath. The method is applicable to processes like dyeing, bleaching, finishing and scouring of textiles.  As shown, a web of textile material 1 passes downwards through a column 5 in which solid discrete particles are fluidised in an ascending stream of treating liquid.  The impregnated fabric then enters the molten metal bath 10, which may be heated by coils (not shown) or externally, passes round the roller 3 and up through a second column 11, in which is a gaseous fluidised bed.  A heat exchanger 7 for the treating liquid and a pump 9 for recirculating it are provided, as well as ports 14, 15 for the removal of solid particles from the columns, an expansion chamber 12 and a centrifugal separator 13 for entrained solid particles.  The fluidisation in the first treating zone may be caused by the introduction of jets of fluidising medium at different heights as described in Specification 889,211.  Specifications 620,584, 800,091 and 889,210 also are referred to.
Patent GB-255116-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H51/02
Filed: 1926-07-13
Abstract: 255,116. British Thomson-Houston Co., Ltd., (Assignees of Leddick, G. S.). July 13, 1925, [Convention date]. Switchboards; electromagnetic switches: switches, interlocking; cases.-A switch assembly comprises a casing having a contactor panel mounted pivotally therein and bearing electro. magnetic switches mounted back-to-back on its opposite sides. As described the contactors form part of an auto-transformer motor starter and the panel 12 carries two three-phase contactors mounted on its opposite sides. The contactors consist of movable contacts mounted on rocking shafts 17 and adapted on the attraction of armatures 19 to electromagnets 20 to engage fixed contacts mounted between arcing barriers 18. An interlock between the contactors consists of a bar 21, Fig. 2, passing through a hole in the panel 12 and provided with slots through which project depending arms from the shafts 17 so that one only of the contactors may be closed at a time. The panel is provided at each end with a forked member 13 straddling a cross bar in the casing 10 so that when catches 22 securing its upper end to a cross bar 23 are disengaged the panel may be swung aside until arrested by the member 27, Fig. 1, so that the rear contactor may be conveniently examined or adjusted. In this position the terminal board 28 for the incoming leads is also exposed. The casing 10 contains in addition to the contactor panels an auto-transformer 24 and relays 33, 34 the former being a thermal overload relay which may be of the type described in Specification 209,436 and the latter a suitable relay for introducing a definite time element between the closing of the starting and running contactors 16, 15. A cord 35 enables the relay 33 to be reset after operation from outside the casing. The front panel and top of the casing are both removable.
Patent GB-798556-A (GB)
Title: Improvements relating to the sorting of boards or timber and similar elongated articles according to length
Inventor: SERRY VICTOR
IPC: B07C5/14
Filed: 1955-06-17
Abstract: 798,556. Sorting timber &c. PHOENIX TIMBER CO., Ltd. June 14, 1956 [June 17, 1955], No. 17532/55. Class 117 [Also in Group XIX] Apparatus for sorting boards of timber or similar elongated articles according to length, comprising a continuous or substantially continuous ledge J for supporting one long side of each of the articles as they are fed endwise one behind the other, the ledge having a width less than half the width of the articles being fed, and co-operating local supports B for the other long side of each of the articles, successive local supports B being set apart longitudinally at distances slightly in excess of a series of nominal lengths into which the articles are to be sorted. The boards are fed, e.g. from a planing machine .along the ledge J which supports one side only, by rollers E, the boards being pressed downwards by pressure pads or rollers A on weighted levers C adjacent the local supports B. The rollers E, and associated rollers A or pressure pads, together with the ledge J hold the board level until the forward end has reached the next local plate and rollers. If a board is too short to reach the second plate, it falls sideways. The plates B are bevelled so that the oncoming faces of the boards meet the part adjacent the ledge J first. Side pressure may be exerted on the boards by springs to hold the boards close to a vertical surface K adjacent the ledge J. To prevent a board being clamped endwise between the preceding and succeeding boards the boards may be separated by accelerating them by paired snatch rollers driven at a speed in excess of the normal rate of feed.
Patent GB-515890-A (GB)
Title: Improvements in or relating to electrically insulating bodies
IPC: H01B3/08
Filed: 1938-06-14
Abstract: 515,890. Electric insulating bushings. REYROLLE & CO., Ltd., A., KIRKWOOD, I. W. A., and RITCHIE, P. D. June 14, 1938, No. 17605. [Class 36] In the production of electrically insulating bushings or sleeves having stress-grading metal inserts or foils, fibres of a vitreous substance, such as glass wool, preferably in the form of a woven fabric, tape or cord, are wound in layers about a conductor or former, the inserts being arranged between successive layers, and the interstices are filled with an insulating medium which, during filling, is in a liquid, semi-liquid or dissolved state, or with an insulating gas at or about atmospheric pressure and which will have a'dielectric strength greater than that of air at atmospheric pressure. The fibres may be bound together in open texture by a small quantity of phenol-formaldehyde resin, polystyrene &c. before filling. The filling may be a phenol-formaldehyde resin, polystyrene, polyvinyl acetate, a higher chlorinated naphthalene, ceresin, shellac, natural wax or a phenolic, urea, vinyl or acrylic resin, which may be in a solvent afterwards removed, and may be applied to the fibres before winding which may then be effected under pressure or heat or both to bind the layers, or after winding the wound layers may be dipped in the filling material. In another method, a liquid such as styrene, or methyl methacrylate, or solutions therein of the corresponding polymers is forced through the layers from end to end, preferably in vacuo, the liquid being then polymerised by heat and, if desired, pressure. To give flexibility, a plasticiser such as chlorinated diphenyl, amyl naphthalene, dibutyl phthalate or tricresyl phosphate, may be incorporated in the filler. Instead of binding the layers into a solid mass, they may be arranged in a casing containing liquid such as hydrocarbon oil, chlorinated diphenyl &c. or a gas such as dichloro-difluoro-methane or other fluorinated chloro-paraffin, or nitrogen or argon. A felted mat incorporating a binder may be formed by agitating short fibres of glass-wool &c. in a reaction mixture giving a synthetic resin, e.g., a heated mixture of phenol and aqueous formaldehyde; when the resin has formed, the whole is poured on to a smooth endless conveyer belt, water is evaporated, if necessary under reduced pressure, and the resulting film wound under heat and pressure. With woven fibres, the warp may differ from the weft.
Patent GB-298258-A (GB)
Title: Improvements relating to arrangements for smoothing out ripple in a direct or rectified alternating current
IPC: H02M1/14
Filed: 1927-07-02
Abstract: 298,258. British Thomson-Houston Co., Ltd., Kinman, T. H., and Clark, L. J. July 2. 1927. Charging and discharging batteries.-Relates to filter circuits for eliminating voltage ripple in D.C. or rectified A.C. supply systems of the kind employing two shunt-connected secondary batteries having a series inductance between them, and consists in providing a switch whereby the batteries are interchanged each time the circuit is brought into operation in order that the two batteries may operate under similar conditions of charge and discharge. Fig. 1 shows the circuit arrangement employed, S2 being the reversing switch for interchanging the positions of the batteries B1, B2 with respect to the charging and load circuits. The switch S2 may be interconnected with a switch S1 controlling the charging circuit, the latter being preferably of the non-reversible rotary type having two " on " or two " off " positions so that each time the charging circuit is completed the batteries are interchanged. Fig. 4 shows the switch construction; the switch S1 having an operating knob 14 is mounted on a panel 13 and carries a second, panel 15 on which the switch S2 is mounted. The spindles of the two switches are coupled together, and that of the switch S2 carries insulating discs 21 between which are mounted conducting discs 22 having cam-like projections 23, Fig. 2, that co-operate with spring contact fingers 15a, connected to the switch terminals 25 on the panel 15.
Patent GB-726376-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/12
Filed: 1953-06-25
Abstract: 726,376. Magnetic separators. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 25, 1953 [June 28, 1952], No. 17644/53. Class 117. In a separator comprising a magnet 5 inside a rotating non-magnetic drum 1, partly immersed in the liquid 3 or dry mixture to be filtered, the magnetic field is reduced at the point where the scraper 6 removes ferrous particles from the drum. Several constructions are described in which the magnet is pivoted eccentrically on shaft 2: (i) In Fig. 1 it is freely pivoted so that it does not rotate with the drum. (ii) The magnet may be given a swinging motion by a ratchet and pawl drive which carries the magnet round to the position shown in Fig. 4 when the pawl 9 drops to the dotted position allowing the magnet to swing back to the position of the magnet in Fig. 1 (and Fig. 3, not shown). The motion of the magnet may be damped by liquid within the drum. (iii) The swing motion may be imparted to the magnet by an eccentric-pin-and-slotted lever drive, Figs. 5-8 (not shown). (iv) The magnet may have a projection engaging a driving pin which allows the magnet to overbalance at the top and fall quickly to the Fig. 1 position until the driving- pin catches up. In an alternative construction the magnet is free to slide diametrically in the drum and is carried round with it, e.g. by driving pins in slots in the magnet whereby it drops from a top position every half revolution (Figs. 11-13, not shown).
Patent GB-1334802-A (GB)
Title: Electrophotographic material
IPC: G03G5/09
Filed: 1971-05-27
Abstract: 1334802 Electro-photographic element EASTMAN KODAK CO 27 May 1971 [30 June 1970] 17645/71 Headings G2C C17E and C17D2 An electro-photographic material is prepared by providing a conductive support with a first layer of a first polymer and coating on the first layer a solution of an organic photo-conductor, a second polymer and a sensitizing dye wherein the solvent of the solution is such as to cause swelling of the first layer and the first polymer has a greater affinity for the dye than the second polymer so that at least a portion of the dye is preferentially absorbed by the first layer. In the embodiments the support is polyethylene terephthalate coated with nickel, the first layer is copolymethyl acrylate-vinylidene chlorideitaconic acid and the coating solution is a dichloromethane solution of a triphenylamine, a polycarbonate or polyester and a cyanine dye salt. Many other materials for use as supports, photo-conductors, polymers, solvents and dyes are specified.
Patent GB-177280-A (GB)
Abstract: 177,280. Scott, B. D. Jan. 5, 1921. Valves.-In an engine having cylinders arranged in pairs in diagonal formation, and in which each pair of cylinders has a common combustion space c which is supplied with combustion mixture from the annular pump spaces of another pair, combustible mixture is admitted to the pump spaces through a rotating cylindrical valve o and ports n.
Patent GB-224838-A (GB)
Title: Improvements in or relating to the distributing mechanism of typographical composingmachines
IPC: B41B11/18
Filed: 1924-07-25
Abstract: 224,838. Hart, H., (Mergenthaler Linotype Co.). July 25, 1924. Distributing matrices.-In matrix-separating mechanism having a number of selector-bridges. the bridges are adjustable in a direction parallel with the path of the matrices in order to locate one or another of them in operative position. The invention is described in connection with the arrangement described in Specification 167,633, in which different pairs or groups of magazines of a series can be brought into operative relation with a single pair or group of distributors, to which matrices are delivered by a preliminary or fount distributor having adjustable selector-bridges. Four magazines A, Fig. 4, mounted in a shift-frame A<1> co-operate with two distributors, which receive matrices through shoots C<1> from a preliminary distributor C, Fig. 2. The toothed bar of the distributor C has two matrix-releasing gaps E<2>, with which co-operate four selector-bridges F. The bridges are detachably mounted on a slide H, which is adjustable lengthwise in guides to bring different pairs of brdges beneath the gaps E<2>. The terminal positions of the slide are determined by fixed stops H<5>, H<6>, and the intermediate position by a spring- pressed detent. The slide may be adjusted manually, or automatically bv a cam lever T controlled by a cam J<7> on the magazine-shift frame. The last bridge of the series may be plain, or may have ribs so that matrices rejected by it pass into a pie-tube.
Patent GB-998142-A (GB)
Title: Process for modifying the characteristics of a fabric containing keratin fibres, fabric so modified and garments produced therefrom
IPC: D06M23/00
Filed: 1962-05-09
Abstract: Fabrics comprising keratin fibres, e.g. wool, mohair, alpaca, cashmere, vicuna, guanaco, camel's hair or llama hair, alone or in admixture with polyamide, polyester, acrylic, cellulose acetate, viscose rayon or cotton fibres, are impregnated with a reducing agent and at least 3% by weight of the fabric of a swelling agent or a polyhydroxy compound having a molecular weight of not more than 4,000 and are then dried to a moisture content of less than 30% by weight under conditions such that they are rendered capable of being permanently set in a desired configuration without the addition thereto of moisture beyond the moisture regain level of the fabrics. Suitable reducing agents are alkanolamine sulphites containing up to 8 carbon atoms in the alkyl chain, metallic formaldehyde sulphoxylates, alkali metal borohydrides, sulphites, bisulphites, meta bisulphites and hydrosulphites, ammonium bisulphite, sodium sulphide, cysteine hydrochloride, sodium hypophosphite, thiosulphate or dithionate, titanous p  chloride, sulphurous acid, thioglycollic acid and its watersoluble salts, hydrogen sulphide, sodium or potassium hydrosulphide, butyl or ethyl mercaptan and b -mercapto ethanol. The swelling agent may be urea, guenidine hydrochloride, formamide, N, N-dimethyl formamide, acetamide, thiourea, phenol or lithium chloride, bromide or iodide and suitable polyhydroxy compounds are glycols having terminal hydroxyl groups separated by 2-10 methylene groups, 1, 2-propylene glycol, dipropylene glycol, 1, 3-butylene glycol, diethylene glycol, glycerine, quintenyl glycerine, diethyl glycerol, mesicerin, trimethylol ethane, trimethylol butane, trio-hydroxymethyl-amino methane and polyethylene glycols or polypropylene glyco ls having molecular weights of not more than 4000.  The reducing agent and swelling agent or polyhydroxy compound may be applied to the fabric from the same or different aqueous solutions having a ptt of 3-10 in any desired sequence.  The fabric may be allowed to stand for at least 10 minutes in its wetted state after impregnation and may be washed after treatment with either or both the reducing agent and swelling agent or polyhydroxy compound and may be dried at temperatures up to 250 DEG F. the fabric may subsequently be subjected to a semior full-decatising treatment or embossing treatment. It may be formed into garments and pleated or creased, pressing being effected at 260 DEG F. if desired with steaming.
Patent GB-575066-A (GB)
Title: Improvements in ventilating systems for submarines
IPC: B63G8/36
Filed: 1943-10-30
Abstract: 575,066. Ventilating submarines. SHEFFIELD, W. F. Oct. 30, 1943, No. 17966. [Class 137] [Also in Group XXVII] Fresh air is supplied under slight pressure to submarines from a cylinder 11 through ducting 6 and register outlets 7. Pumps 14 exhaust vitiated air through registers 13 in ducting 31 preferably arranged at the upper part of the vessel and leading to a reservoir 15 whence the air is forced by a pump 16 through a check valve 35 into a casing 34 terminating in outlets projecting through the hull. Gases exhausting from internal combustion engines 4 through a muffler 41 and reservoir 24 are also directed by pump 16 into the casing from which a rotating helix driven from a motor 37 expels them intimately mixed with water. In a modification an exhaust pump mounted directly on the main propeller shaft expels vitiated air and exhaust gases from a common reservoir into the passage formed by the turns of the helix which is also mounted on the shaft.