baber/WOPTO huggingface dataset:
Patent GB-621290-A (GB)
Title: Improvements relating to rectifier circuits
IPC: H02M7/06
Filed: 1947-02-13
Abstract: 621,290. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Feb. 13, 1947, No. 4207. [Class 38 (ii)] In a rectifying circuit supplying a D.C. load which includes both resistance,R and inductance L, a resistance Rs approximately equal to R is connected in series with a capacitor C of low impedance to the fundamental ripple across the rectifier output terminals, whereby, although the load receives smooth D.C., the rectifier takes sinusoidal A.C. and the harmful results from harmonics in conjunction with inductance on the A.C. side are avoided. In general the total load on the rectifier will equal R both to D.C. and to the harmonics.
Patent GB-557068-A (GB)
Title: A vehicle for spraying agents for combatting pests and for other purposes
IPC: A01M7/00
Filed: 1942-03-30
Abstract: 557,068. Tank vehicles. PEST CONTROL, Ltd., REEVE, L. T., and GLADSTONE, M. N. March 30, 1942, No. 4208. [Class 108 (i)] [Also in Group XXIX] A vehicle for spraying land and crops comprises the usual tank or container 3 mounted on a wheeled chassis 1 and is provided with spray bars 4, 4<SP>1</SP> pivoted to the vehicle sc that they may be swung horizontally alongside the tank and also swung upwardly in both the out. stretched position and the folded positions alongside the tank. The bars 4, 4<SP>1</SP> are carried by vertical hinges 6, 6<SP>1</SP> whereby they may be folded back horizontally by means of power cylinders and cranks. The hinges 6, 6<SP>1</SP> are mounted to frames 11, 11<SP>1</SP> pivoted about longitudinal horizontal hinges 12, 12<SP>1</SP> whereby the bars 4, 4<SP>1</SP> in outstretched position may be swung upwardly by means of power cylinders 16, 16<SP>1</SP> and toggle levers 13, 14 and 13<SP>1</SP>, 14<SP>1</SP>. The hinges 12, 12<SP>1</SP> are carried by a transverse hinge 22<SP>1</SP> upon which is hinged a central structure 24<SP>1</SP> which may be rotated to swing upwardly the bars when in the folded position by means of power cylinder 21 and toggles 17, 18, 19. The hinge 22<SP>1</SP> may be adjusted by screws 26<SP>1</SP> to adjust the height of the bars 4, 4<SP>1</SP>. Specifications 544,686 and 545,968, [Group I], are referred to.
Patent GB-197916-A (GB)
Title: Printing inks
IPC: C09D11/02
Filed: 1923-02-13
Abstract: 197,916. Alchemic Gold Co., Inc., (Assignees of McElroy, W. J., and Clarke, J.). May 20, 1922, [Convention date]. Ink.-Metallic-pigment inks for use with heated dies &c. in stamping book covers, labels, &c., and applicable also for ordinary printing, are made with a vehicle consisting of a non-corrosive resinous binder, such as a neutralized or esterified resin, particularly ester gum obtained by esterification of white resin with a glyceryl radical, dissolved in a neutral solvent, such as terpineol.
Patent GB-348149-A (GB)
Title: Improved manufacture of graphitic refractories
IPC: C04B35/52
Filed: 1930-02-07
Abstract: Refractory articles are made by heating a mixture of free silicon and graphite to produce a silicon carbide bond in situ, the proportions being such that the finished article contains free carbon in the form of graphite.  Sixty parts of plumbago, and 40 parts of silicon shaped with the aid of a temporary binder, and burnt at 1500 DEG  C. gives a tough article bonded by silicon carbide formed by combination of the silicon with some of the plumbago. The article may be heat finished before use, or the burning may be merely sufficient to produce coherent articles which strengthen by continuation of the reaction during subsequent use.  Other refractory substances such as preformed silicon carbide, alumina, silica, chamotte, and magnesia, may be added to the composition, according to the articles required, the average content of graphite for crucibles being 20-50 per cent, although the percentage of graphite may be 10 or less.  Binders to facilitate shaping and handling are tar, pitch, molasses, or clay (5 per cent) with water to give sufficient plasticity.  Supplementary binders such as 15-35 per cent of clay may be added to give resistance to sudden temperature changes.  A flux, as borax, felspar, Cornish stone may be used, and the article may be glazed before or after burning.  Specification 313,185, [Class 87 (ii), Moulding plastic &c., substances], is referred to.
Patent GB-932594-A (GB)
Title: Improvements in or relating to conveyor arrangements
Inventor: KAY JOHN GILCHRIST
IPC: B23Q7/08
Filed: 1962-02-03
Abstract: 932,594. Conveyers. F. JOS. LAMB CO. Feb. 3, 1962, No. 4247/62. Class 78 (1). Circular section articles B are lifted from a gravity feed shoot 15 to a second gravity shoot 16 by an elevator 14. Shoot 16 feeds the articles into a horizontal shoot 11 along which they are conveyed by brushes 5 attached to carriers 4 supported by rollers 3 on an endless monorail 1, the carriers 4 being spaced on and driven by an endless chain 6. Breaks in the supporting rail 116 (see Fig. 11) allow the articles to fall into shoots 18 leading to feed shoots 22 of processing machines A, A<SP>1</SP>. When one of the shoots 18 (Fig. 8) is full succeeding articles B are swept over the top article B<SP>1</SP> in the shoot and proceed to the next shoot 18. They are assisted by a plate 19 arranged so as to lift the articles B to a convenient height to pass over the article B<SP>1</SP>. The plate 19 is so arranged that it may be used to bridge the break in the support rail 116 if the particular machine is not in use. Unprocessed articles which complete a circuit (i.e. without falling into a shoot 18) are fed back to the elevator 14 by a gravity shoot 23 at an intermediate point, tripping a switch 24 which interrupts the main feed from the gravity feed shoot 15. Finished workpieces are delivered down a shoot 32 from each machine and trip a switch 46 which actuates a valve 48 (Figs. 10, 13) mounted in a fluid pressure line 49 connected to a cylinder 34 so that a piston 35 is moved upwardly causing another workpiece already on a plunger 38 to be lifted into auxiliary shooting 11<SP>1</SP>, pushing a latch 43 normally covering the gap in the carrier rail 11b<SP>1</SP> out of the way. Processed workpieces are thus conveyed by the brushes simultaneously with the unprocessed workpieces in adjacent shoots. The processed workpieces leave the apparatus by a gravity shoot 30.
Patent GB-453350-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P1/20
Filed: 1935-02-11
Abstract: 453,350. Master control systems. CLARK, T., Ardlui, Walton New Road, and VLASTO, I., Dukefield, London Road, both in Stockton Heath, Cheshire. Feb. 11, 1935, No. 4277. [Class 38 (iii)] In a motor control system employing independentlock-out contactors which are successively brought into operation the time of operation of each of such contactors is increased by connecting a separate reactance or inductance in series with each lockout coil. As shown in the Figure the lock-out coils 9, 10 &c. of the contactors 12, 13 &c. are placed in series with inductances 17, 18 &c., which impose an additional time lag control on the operation of the respective contactor and the shortcircuiting of the section of the resistance 4 which it controls. The arrangement shown involves a master controller 3 and a main contactor 14 for bringing the lock-out switches into operation successively.
Patent GB-610845-A (GB)
Title: Improvements in or relating to the manufacture of fibres from thermoplastic materials such as glass
IPC: C03B37/065
Filed: 1946-02-12
Abstract: 610,845. Making glass and other thermoplastic fibres. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. GOBAIN, CHAUNY, & CIREY. Feb. 12, 1946, No. 4327. Convention date, Feb. 12, 1945. [Class 56] In a process for drawing glass &c. fibres combustion of a fuel in an enclosed space produces through an outlet orifice a high temperature gaseous blast, and the material to be drawn is fed into the enclosed space and passes out through the outlet orifice as a molten stream which is attenuated to fibres by the surrounding gaseous blast. Gaseous, liquid, or pulverized solid fuel and air or other comburent may be introduced into the chamber 1, Fig. 2, either through separate pipes 14, or, as shown, already mixed, and a glass rod 8, propelled, e.g. by electrically driven rollers, may enter through an opening 6 (serving as a seal) in the wall opposite to that carrying the orifice 4; after primary ignition through a closable orifice 9 (which also acts as a safety valve), the combustion products escape through the orifice 4 and carry with them molten glass from the surface of the lower end of the rod 8, the amount thus entrained depending on the distance between the latter and the orifice, i.e. upon the feed rate. An internal temperature of 1200‹ C. is referred to, and this may be localized to the zone Z by supplying air through the pipes 12, 13; a cylindrical cowl 11 may also be provided. Instead of feeding the material in rod form, a receptacle having a lower outlet slightly above the orifice 4 may be arranged within the chamber 1 (Fig. 3, not shown), and the material may be supplied thereto already molten, or in solid form, e.g. as glass balls introduced through a fluid-tight lock. Ignition may be maintained electrically if required, and the pressure in the chamber 1 may be constant or pulsating. The Specification as open to inspection under Sect. 91 refers to the passage of the glass in proximity to, but not through, the expansion orifice. This subject-matter does not appear in the Specification as accepted.
Patent GB-226067-A (GB)
Title: Improvements in or relating to handles and sticks for umbrellas
IPC: A45B9/00
Filed: 1924-02-20
Abstract: 226,067. Duke, E. Feb. 20, 1924. Handles. - An umbrella, when folded has only the knob A of the handle exposed and the neck E of the handle is tapered upwards, as shown, to cause the ribs to lie close to the handle and so reduce the bulkiness of the folded umbrella. The runner preferably contacts with the base of the neck E when the umbrella is folded.
Patent GB-312661-A (GB)
Title: Improvements in or relating to stockings or socks
IPC: A41B11/00
Filed: 1929-02-09
Abstract: 312,661. Kohlsdorf, P. May 30, 1928, [Convention date]. Void (Published under Sect. 91 of the Acts]. Stockings, &c. - A stocking or sock has the leg 1 and upper portion 2 of the foot made of chain fabric, while the toe 5, sole 7, and heel 3 are worked on a flat knitting machine.
Patent GB-827480-A (GB)
Title: Manufacture of improved products from a polyacrylonitrile or a copolymer of acrylonitrile
IPC: C09K23/00
Filed: 1956-02-13
Abstract: Dyeable films, fibres and fabrics are made by treating with a strong oxidizing agent, preferably in an acid medium and at an elevated temperature, a shaped article made from a polyacrylonitrile or copolymer of acrylonitrile substituted by a group containing bivalent sulphur (see Group IV (a)).  The introduction of the bivalent sulphur group may be effected on polymers whilst in shaped form and this method of operation may be used to produce locally oxidized structures, e.g. a fabric made from fibres of a copolymer of acrylonitrile containing halogen alkyl agroups is printed with a thiourea or thiocyanate in the presence of thickening agents such as methyl or carboxymethyl cellulose and then reacted by heating, followed by treatment with an oxidizing agent; alternatively a fabric made of an acrylonitrile polymer containing bivalent sulphur groups may be oxidized locally by means of an oxidizing agent in the presence of a resistant or thickening agent such as sodium polystyrene sulphonate.  The products of the process show affinity for dyestuffs, particularly basic dyestuffs such as Astra Cyanine B, a triphenylmethane dyestuff.ALSO:Dyeable shaped structures are made by treating with a strong oxidizing agent, preferably in an acid medium and at an elevated temperature, and prior to or after a shaping process, a polyacrylonitrile or copolymer of acrylonitrile substituted by a group containing bivalent sulphur which is either linked directly to a saturated carbon atom of the chain or is linked to the chain by another saturated carbon atom and in which group another carbon atom, adjacent to the sulphur, is linked by more than one valency to another sulphur atom or to oxygen or nitrogen.  The sulphur containing groups may be incorporated in the polymer molecules (a) by copolymerizing acrylonitrile with vinyl thioacetate in a dioxane solution with azodiisobutyronitrile as a catalyst, or (b) by causing polyacrylonitrile or copolymers of acrylonitrile to react with compounds such as sodium and ammonium thiocyanates, sodium alkyl xanthates, alkali thio- or dithio-carbamates, ethylene thiourea, N-butyl ethylene thiourea and mercaptobenzothiazole; preferred polymers are copolymers of acrylonitrile with monomers containing reactive groups such as vinyl chlorethyl ether, chloracrylonitrile, chlorethyl methacrylate, hydroxyethyl acrylamide benzene sulphonate, bromobutyl acrylamide and vinyl chloroacetate, and, optionally, other monomers such as methyl acrylamide, vinyl acetate and vinyl pyrrolidone may also be present.  Specified oxidizing agents are chlorine or bromine in the presence of water, hypochlorous or hypobromous acid, benzoyl peroxide peracetic or perbenzoic acid, N-chlorurethane and N-chloroxazolidone, the action of which may be accelerated by means of oxygen carriers such as anthraquinone or anthraquinone sulphonic acid.  The oxidation reaction is preferably carried out on the polymeric material in the form of fibres or films which may then be dyed, particularly with basic dyestuffs.
Patent GB-1507654-A (GB)
Title: Ventilation ducts
IPC: F16L41/02
Filed: 1977-02-03
Abstract: 1507654 Branching pipes SULZER BROS Ltd 3 Feb 1977 [3 Feb 1976] 04482/77 Heading F2G Branch connections to a ventilation duct la, 1b are formed by providing slot-shaped apertures 7 in the duct and securing thereto branch connectors 8a, 8b which have a circular opening at one end, and for connection to the duct at the other end are flanged and have a slot-opening the edges of which are substantially in one plane. The area of the slot-shaped opening is preferably at least as large as that of the circular opening and the slot shape enables the curvature of the duct surface to be disregarded thus facilitating manufacture. The connectors 8a, 8b are preferably made from sheet metal and may be secured to the duct by rivets, sticking, screws or soldering. A flexible sealant may be interposed between the connector flange and the duct.
Patent GB-1110637-A (GB)
Title: A piperidine derivative
IPC: C08J9/06
Filed: 1967-01-30
Abstract: Novel 1,a ,a -trimethyl-2-piperidylcarbinol diphenyl acetate <FORM:1110637/C2/1> (and acid addition salts thereof) is prepared by hydrogenating a ,a -dimethyl-2-pyridyl-carbinol to the corresponding piperidylcarbinol, treating this compound with formaldehyde and hydrogen in the presence of a hydrogenation catalyst to give 1,a ,a -trimethyl-2-piperidylcarbinol which is esterified with diphenyl-acetyl chloride. Pharmaceutical compositions contain the above diphenyl acetate, or salts thereof, as the active ingredient in association with a diluent.  The compositions may be administered subcutaneously or intravenously and are capable of blocking the transmission of the nervous centripetal impulses in nerve fibres.
Patent GB-366291-A (GB)
Title: A model tunnel for toy railway tracks available also as a packing element
IPC: A63H19/34
Filed: 1931-02-13
Abstract: 366,291. Railways ; toys made in box form. HORNBY, F., 236, Binns Road, Old Swan, Liverpool. Feb. 13, 1931, No. 4505. [Class 132 (iii).] A model tunnel, that may also be used as a packing for a toy locomotive, comprises a sheet of cardboard having longitudinal corrugations and stiffening elements 4 to maintain it in the curved 'shape of a tunnel. The stiffening elements comprise metal bands 4 having internal clips 5 to engage the ends of the sheet 1. The tunnel is fixed in position relatively to, the track 7 by a stretcher 8 having projections 9, 10, 11 for engagement with the tunnel and rails.
Patent GB-703490-A (GB)
Title: Stop switch mechanism for use with conveyors
IPC: B65G23/00
Filed: 1951-02-24
Abstract: 703,490. Conveyers. THORNE, N. A. L. Feb. 22, 1952 [Feb. 24, 1951], No. 4527/51. Class 78 (1) Mechanism for stopping a conveyer when material is carried beyond the delivery point comprises a member 16 which extends across the conveyer 13 and is attached to a rotatable switch-actuating cam 15. The cam co-operates with a leaf spring 18, one end of which is anchored to a bracket 20 and the other end of which engages the plunger 21 of a snap-action switch 22. During normal operation the spring 18 presses against a flat face 19 of the cam, but when the member 16 is displaced by the material, the cam is turned and one of its corners 17 engages the spring and displaces it to actuate the switch.
Patent GB-413411-A (GB)
Title: Improvements in means for suppressing echo in telephone circuits and the like
IPC: H04B3/20
Filed: 1933-02-14
Abstract: 413,411. Two - way transmission. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and FARREN, L. I., c/o General Electric Co., Ltd., Wembley, Middlesex. Feb. 14, 1933, No. 4554. [Class 40 (iv).] The potential for blocking one path of a twoway repeater when speech flows in the other path is derived from a thermionic rectifier system sharing the envelope and cathode of one of the speech-transmitting valves. In the arrangement shown, a portion of the speech currents in the upper path is rectified by the diode comprising electrode X1 and the filament of valve V1 and the resulting potential across resistance R1 produces a paralysing potential on the grid of VI. Alternatively, the rectifier system for paralyzing V1 may be included in valve V4, and the cathodes may be indirectly heated.
Patent GB-334159-A (GB)
Title: Method of and apparatus for the manufacture of metal tubes by extrusion presses
IPC: B21C23/20
Filed: 1930-02-11
Abstract: 334,159. Hydraulik, Ges., and Schlenstedt, O. Feb. 11, 1929, [Convention date]. Squirting ; billet-piercing.-In squirting tubes a billet 14 and die 19 are placed in one end of a fixed container 1 in the other end of which a closure 4 carrying a mandrel 15 is secured by a wedge 6. A hollow mm 7 is then advanced by one or more cylinders 10 to force in the die 19 and first piece and then extrude the billet 14. After extrusion the closure 4 is removed by a handle 18 or by a mechanical or hydraulic device and further advance of the ram 7 enables the unextruded residue to be removed. In a modification the mandrel 15, Fig. 2, has a limited movement relative to the closure so that friction between it and the work is reduced during extrusion. In another modification the mandrel 15, Fig. 5, can also be removed from the closure, by withdrawing a fork 17 or other stop, so that it can be replaced by a cold mandrel.
Patent GB-209970-A (GB)
Title: Improvements in dolls' houses and furniture
IPC: A63H3/52
Filed: 1923-02-17
Abstract: 209,970. Dennis, E. H. Feb. 17, 1923. Folding models; furniture.-A doll's bedroom and furniture is made from paper, cardboard, or the like, by bending suitably shaped pieces and sticking them together, the articles of furniture being rigid when set up, but capable of being packed flat for transit. The room consists of three walls and a floor and is made by bending a piece of material, shaped as shown in Fig. 1, along the dotted lines. Each article of furniture is made similarly to the chair shown in Fig. 6. This is made by bending the blank shown in Fig. 3 along the dotted lines and gumming the flaps G to the chair back G<1>, Fig. 4. The seat M, Fig. 5, is not gummed to the other parts, but the tabs m are inserted in the space between the front and back of the chair. The seat thus holds the article rigid, but, when removed, enables the article to be collapsed. Specifications 22142/10 and 104,552 are referred to.
Patent GB-1460873-A (GB)
Title: Hydraulic drilling jar
IPC: E21B31/113
Filed: 1975-02-05
Abstract: 1460873 Boring earth &c J L DOWNEN 5 Feb 1975 [21 June 1974] 4813/75 Heading E1F An hydraulic drilling jar comprises an upper sub 21 Fig. 1 having an integral mandrel 35, a lower sub 25 terminating upwardly in an external sleeve 28, a spline sub 68 connected at its lower end to the lower sub, a sleeve 67 provided on the upper end of the spline sub, and a dashpot jar tensioning and tripping mechanism located in the annular space between the mandrel and sleeve 67. An annular anvil face is provided on the lower end of the spline sub 68 and a hammer 61 is connected to the lower end of the mandrel. In operation the mandrel is first lowered through the sleeve 67 and splined sub 68 with operating oil passing up the outside of an orifice ring 56, Fig. 7, between ground faces 59, 54 of the ring and a sleeve valve 53, then upwardly between the sleeve valve and mandrel and between the sleeve valve and a stop 39 via notches 55. Tensioning of the string and thus raising of the mandrel brings the faces 54, 59 into sealing contact and passage of the oil downwardly is only possible through a metering gap 57 between the ring and mandrel. The high buildup of pressure in the oil is suddenly released to cause jarring when the sleeve valve moves out of the closely fitting bore 75 into the enlarged bore 83.
Patent GB-1032272-A (GB)
Title: A silver alloy composition for use in dentistry
IPC: A61K6/847
Filed: 1963-02-06
Abstract: A pulverent silver based alloy, for use in the production of plastic tooth filling compositions when triturated with mercury, consists of <TABS:1032272/C6-C7/1> the balance, apart from unavoidable impurities, being silver in the range 80-99.5%.  Up to 1% (based on the total weight of the alloy) of the metals Pt and Pd, may be replaced by Rh and/or Ru and/or Ir and/or Os and up to 0.5% (based on the total weight of the alloy) of the base metals, may be replaced by Ni and/or Co and/or Cr and/or Si.  The alloy may be comminuted mechanically or the molten alloy may be sprayed e.g. from a plasma arc torch into a liquid (e.g. water).  The alloy may also be prepared in the pulverulent form by cathodic deposition from a solution of suitable compounds or by precipitation from such solution.  The preferred grain size is less than 0.2 mm.
Patent GB-475388-A (GB)
Title: Improved apparatus for separating rain from air in ventilating systems for aircraft
IPC: B64D13/08
Filed: 1937-02-18
Abstract: 475,388. Ventilating aircraft. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and SLADE, F. H. Feb. 18, 1937, No. 4889. [Class 137] Air, due to the aircraft speed, enters the inlet a<1> of a cylindrical ventilating duct a and is deflected by a curved baffle or deflector b, a curved lip b<1> of which is bent to form a gutter b2 which faces the inlet and catches entering rain. The gutter extends transversely from one side of the cylinder to the other and the rain it collects is carried away from the air current which passes to the outlet a<2>. A casing c is attached to the lower wall of the cylinder a and forms with a projection a4 a trap for moisture. A drain c<1> is provided at the lowest point of the casing c.
Patent GB-481660-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/52
Filed: 1936-06-13
Abstract: 481,660. Cathode-ray tubes. ZEITLINE, V., ZEITLINE, A., and KLIATCHKO, V. June 13, 1936, No. 4889 /38. Convention date, June 13, 1935. Divided out of 481,690. [Class 39 (i)] A device for regulating the intensity of the beam comprises three planar metallic grids between the cathode and an apertured diaphragm and a lens concentrating the beam on the aperture. As shown, the device comprises two positive grids E1, E2 and an intermediate negative grid M. A coil B1 focuses the beam on the aperture of a diaphragm E3 integral with the member E2, and a lens L reproduces this aperture on the anode A1. The final reproduction is made with the aid of a coil B2. In a modification, the diaphragm E3 is separated from the grid E2 and the coil B1 is replaced by a cylindrical lens surrounding the grids. Specification 481,590 is referred to.