baber/WOPTO huggingface dataset:
Patent GB-1129254-A (GB)
Title: Improved magnetic circuit and crossed field tubes using same
IPC: H01J23/10
Filed: 1966-05-23
Abstract: 1,129,254. Magnetrons. VARIAN ASSOCIATES. 23 May, 1966 [25 May, 1965], No. 22897/66, Heading H1D. In a voltage-tunable magnetron comprising an electron injection region 46 formed between cathode 13 and control electrode 17 and an eletronic interaction region 45 formed between central electrode 18 and an interdigital anode circuit 22, the magnetic circuit comprises two permanent magnets 5, 6 designed to produce a field of greater intensity in the injection region 46 decreasing to a lower but uniform intensity in the interaction region 45, the magnet 5 being longer and of greater magnetomotive force than the magnet 6. The tube envelope 2 comprises a stack of conductive and ceramic discs and members 34<SP>1</SP>, 35<SP>1</SP> brazed across the ceramic end disc 12 provide connections to the cathode filament leads 14, 15. Insulating, sheets 42 are provided between the members 34<SP>1</SP>, 35<SP>1</SP> and the magnet 5 and between the electrode 18 and the magnet 6. The tube elements and the magnets are encased in epoxy resin potting material- 44 within a magnetic shield 7.
Patent GB-1264040-A (GB)
Title: Olefin polymerization
Inventor: SUSA ERMANNO
IPC: C08F10/00
Filed: 1969-05-06
Abstract: 1,264,040. Supported Zeigler olefin polymerization catalyst. MONTECATINI EDISON S.p.A. 6 May, 1969 [6 May, 1968], No. 22922/69. Heading C3P. An olefin polymerization catalyst is obtained by (a) forming a complex of an organoaluminium compound and a tetrachloride, bromide or iodide of titanium or vanadium, (b) reacting the complex with a support comprising magnesium hydroxychloride, and (c) reacting the product of (b) with an organometallic compound or hydride of a Group I to III metal. In examples ethylene is homopolymerized in solution in nheptane in the presence of hydrogen and TiCl 4 , TiBr 4 , TiI 4 -Al(C 2 H 5 ) 3 , Al(i-C 4 H 9 ) 3 , Al(i-C 6 H 13 ) 3  or Al(C 2 H 5 ) 2 Cl-Mg(OH)Cl-Al(i- C 4 H 9 ) 3  or Al(C 2 H 5 ) 3  reaction products, and ethylene, propylene and ethylidene norbornene are terpolymerized in bulk in the presence of VCl 4 -Al(C 2 H 5 ) 2 Cl-Mg(OH)Cl-Al(C 2 H 5 ) 2 Cl reaction product.
Patent GB-442863-A (GB)
Title: Improvements in and relating to photo printing papers and processes
IPC: G03C1/64
Filed: 1934-08-09
Abstract: 442,863. Photographic ferro-prussiate printing-papers.. HALDEN & CO., Ltd., J., and HOLDEN, J., Rowsley Works, Reddish, near Stockport. Aug. 9, 1934, No. 23024. [Class 98 (ii)] In a process for the manufacture of ferroprussiate printing-paper, the base paper is coated with ferro - prussiate solution and thoroughly dried and the dried coated surface is then coated with nickel, cobalt, copper, &c. salts in a dry and finely powdered condition so that when the paper is developed these salts will react with the unaffected ferrocyanide of the print to form inactive compounds which do not react with the ferric salt present. The ferro - prussiate solution coated on the paper should not contain excess of the ferric salt which produces fading of the print. Oxidizing agents such as potassium bichromate, p-sulphodichloramino-benzoic acid, chloramine T, and wetting-agents such as sulphurated lauryl alcohol are preferably included in the coated layers. A waterproofing agent may be applied to prevent undesirable or premature reaction in a humid atmosphere and may be paraffin wax dissolved in petroleum spirit and applied either to the back or to the sensitive surface of the prints.
Patent GB-1352479-A (GB)
Title: Rocket engine
IPC: F02K9/12
Filed: 1972-05-17
Abstract: 1352479 Rocket engines WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 17 May 1972 [27 May 1971] 23053/72 Heading F3A A rocket engine comprises a nozzle 19 carried by a member 8 which is attached to a projection 5 extending from the floor 3 of the combustion chamber 1. The nozzle is supported on the shoulder 20 of a steel sleeve 16 containing an inner sleeve 22 of thermally insulating material. The combustion chamber 1 is made of aluminium alloy and is lined with thermally insulating material. The propellant charge 2 is ignitable by means 7 and consists of a launching charge 2a of large surface area and a cruising charge 2b. The member 8 is formed of fibre reinforced phenolic resin.
Patent GB-461432-A (GB)
Title: Process for the manufacture of vat dyestuffs
IPC: C09B5/28
Filed: 1935-08-16
Abstract: Anthraquinonecarbazoles.--Anthrimides in which an anthraquinone nucleus contains one or more acylamino groups are condensed to carbazoles by means of aluminium halides, in presence of acid halides capable of forming molecular compounds therewith.  The presence of the acid halides enables the condensation to be effected at lower temperature.  According to examples, 4 : 5<1>- and 4 : 4<1>-dibenzoyldiamino-1 : 1<1>-dianthrimides are condensed with aluminium chloride in presence of acetyl chloride; 4 : 5<1>-dibenzoyldiamino-1 : 1<1>-dianthrimide, the trianthimide obtained from 1 : 5-dichloroanthraquinone (1 mol.) and 1-benzoylamino-4-aminoanthraquinone (2 mols.) and the polyanthrimide obtained from 5 : 5<1>-diamino - 1 : 1<1> - dianthraquinonylamine (1 mol.) and 1 - benzoylamino - 5 - chloroanthraquinone (2 mols.), are condensed with aluminium chloride in presence of thionyl chloride; the trianthrimide above, 1-benzoylamino-4 : 2<1>-naphthylaminoanthraquinone, the trianthrimide from 2 : 6-dichloroanthraquinone (1 mol.) and 1 - amino - 5 - benzoylaminoanthraquinone (2 mols.), and 4 : 8<1>-dibenzoyldiamino-1 : 1<1>-dianthrimide are condensed with aluminium chloride in presence of benzoyl chloride; 4 : 8<1> - dibenzoyldiamino-1 : 1<1>-dianthrimide is condensed with aluminium chloride in presence of methane sulphochloride, or benzene sulphochloride; the products are the corresponding carbazoles and dye cotton from the vat in redbrown shades.  The anthrimides may further contain the residues of benzanthrone, perylene, pyrene or pyranthrone and may be substituted provided that one ortho position to the imino group is unsubstituted.
Patent GB-672674-A (GB)
Title: Improvements in or relating to a method of producing linen-like effects on fabrics composed of yarns of regenerated cellulose staple fibre with or without admixture of cotton
IPC: D06M15/70
Filed: 1948-09-02
Abstract: Fabrics of regenerated cellulose staple fibre and of mixtures of regenerated cellulose staple fibre and cotton containing up to 50 per cent cotton are impregnated with a 5 to 20 per cent aqueous solution of water-soluble, acid-catalyzable, thermo-setting resin-forming materials, water-insoluble after hardening, containing a minor amount of an acidic or potentially acidic catalyst, the solution pick-up being 70-90 per cent by weight of the dry fabric, then dried to 10 to 15 per cent free moisture, cooled to room temperature, passed through a pressure-chasing calender heated to 250 DEG  F. to 300 DEG  F. with a plurality of thicknesses of fabric in each nip, thereby heating the fabric to 100 DEG  to 200 DEG  F., cured at 250 DEG  to 350 DEG  F. for from 8 to 2 minutes, and finally washed and dried.  Suitable resins include melamine-formaldehyde, urea-formaldehyde, thiourea-formaldehyde, dicyandiamideformaldehyde and mixtures thereof, all used in the unreacted or water-soluble precondensate stage.  In addition to the catalysts employed in Specification 672,673, diammonium hydrogen phosphate, ammonium sulphate, ammonium lactate and ammonium citrate may be used.  The catalyst may be used in amounts from 3 to 5 per cent of the resin-forming materials, and 1 to 4 per cent of a softener (by weight of solution) may be added to the impregnating bath.  It is important that no polymerization of the resin-forming materials should occur during the mechanical treatment. In an example a solution is made from 460 lbs. urea-formaldehyde precondensate (50 per cent solids), 20 lbs. urea-formaldehyde resin, 25 lbs. softener, 20 lbs. "Catalyst AC," 1 lb. 28 per cent ammonium hydroxide and water to make 150 U.S. gallons.  A regenerated cellulose staple fibre fabric is impregnated with this solution and squeezed to 80 per cent pick-up.  The fabric is then carefully dried until approximately 10 per cent excess moisture is left thereon and cooled immediately to 60 DEG  F.  The moist impregnated fabric is chase-calendered in a five-bowl calender with steel bowls heated to 250 DEG  F., there being five thicknesses of fabric in the bottom nip and four in the remaining nips.  It is then cured at 350 DEG  F. for 2 minutes, washed and dried.
Patent GB-1391204-A (GB)
Title: Purification of internal combustion engine exhaus gas
IPC: F01N3/28
Filed: 1972-05-18
Abstract: 1391204 Treating exhaust gases EXXON RESEARCH & ENG CO 18 May 1972 [26 May 1971] 23341/72 Heading F1B Exhaust gas purifying reactor for an I. C. engine comprises an inner perforated wall 20 having one end 16 adapted for connection to an exhaust conduit of the engine and the other end closed off, an outer perforated wall 22 surrounding and spaced from the inner wall, the annular space between the perforated walls containing an exhaust gas purification catalyst 24 and an enclosing wall 25 spaced from and surrounding the outer perforated wall to define an annular space for receiving exhaust gas which has passed radially outwardly through the catalyst containing space, said enclosing wall having an exhaust gas aperture and being adapted for connection to an exhaust pipe. The assembly is held together by bolts passed through holes 29 in end-plates 27, 28. The reactor is made from mild steel or stainless steel. The catalyst bed 24 consists of saddles of a nickel-copper alloy (66% Ni, 31À5% Cu) mixed with tubes or rings of a refractory or ceramic material, the presence of which stops the catalyst agglomerating in use. The reactor is connected to the engine by an exhaust conduit of a length such that the gas enters the reactor at not less than 650‹F. Typical dimensions of the reactor are:- length 50 mm; dia. of inner wall, 50 mm; dia. of outer wall 150 mm; dia. of perforations 4 mm.
Patent GB-352284-A (GB)
Title: Check endorsers
IPC: B41K3/12
Filed: 1930-08-02
Abstract: 352,284. Printing-machines. INTER. NATIONAL CHECK ENDORSER CO., 77, West Washington Street, Chicago, U.S.A. Aug. 2, 1930, No. 23353. Convention date, Aug. 9, 1929. [Classes 100 (i) and 100 (ii).] Rotary machines; printing - surfaces.-In a machine for endorsing cheques in which the printing-cylinder carries a detachable type-plate and contains a set of adjustable dating devices, the latter are mounted so that they can be moved from printing to non-printing position. The printing cylinder 1, Figs. 1 and 4, comprises a cylindrical shell 9 having its end edges fitting within circular flanges 10 of the cylinder heads 11, a set of changeable dating wheels 12 rotatably mounted on a shaft 13, a pair of swinging arms 14 in which the shaft 13 is mounted, a type-plate 8, Fig. 6, provided with an opening 20 through which the dating wheels 12 extend, and a type-plate lifting lever 15 mounted at one end of the printing cylinder to facilitate the separation of the type-plate from the printing cylinder. Each of the dating wheels 12 is provided with a ratchet portion 16 for co-operation with a spring-pressed positioning pawl 17. The spring pressure on the pawls 17 may be accomplished by means of a leaf-spring member 18 having an independent leaf-spring portion 19, Figs. 5 and 6, for co-operation with each pawl 17. The leafspring member, which is mounted on a shaft 21, also serves to press the dating wheels through the opening 20 in the type-plate 8. A pair of lugs 23 struck out of the material of the shell 9 and provided with positioning notches 24 to engage the shaft 13 which carries the dating wheels 12 serve to limit the distance to which the dating wheels 12 can move through the opening 20. When a typeplate is used which has no opening for the dating wheels, as shown in Fig. 4, the type-plate 8, when it is being applied to the printing-cylinder, will force the set of dating wheels inwardly against the action of the spring members 19, the pivoted arms 14 in which dating wheels are mounted swinging about the shaft 21 which is mounted in ears 22 struck out of the shell 9. Delivery apparatus.-Each cheque 3, Fig. 1, as it is printed falls down so that its lower edge engages the arcuate arms 25 of a cam-controlled member 26 ; the arms are then withdrawn and upper arms 27 engage the upper part of the cheque to tip it forward to cause it to drop with the endorsed side upward on a baseplate 28. To prevent the cheque from sliding along the framework as it falls, a number of corrugated posts 29 are provided which cause the upper edge of the cheque to tilt about the lower edge. A number of inclined ribs 31 are provided to ensure the cheques 3 being stacked neatly.
Patent GB-936272-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/00
Filed: 1962-06-18
Abstract: 936,272. Lampshades. D. DUNCAN, and P. J. PRICE. June 18, 1962, No. 23404/62. Class 75 (2). In a lampshade of the type comprising a wire or like frame and a shade of pleated plastic, paper or other suitable material sufficiently stiff to maintain the pleated form, the pleats are formed with slots of substantially keyhole shape for the entry of the wire frame. In the form shown, the frame consists of upper and lower rings 1, 2 spaced apart by wires 3, and is of frusto-conical shape. The shade 4 is of pleated material with the ends overlapped and welded together. Keyhole slots 6 are formed in the inner apices of the pleats at the upper end and engage the ring 1. Similar slots 7 are formed in the outer apices of the pleats at the lower end and an elastic band 8 is inserted, holding the pleats in contact with the ring 2. In a modification, the slots are formed in the inner apices of the pleats at both ends and engage the rings 1, 2.
Patent GB-754684-A (GB)
Title: An improved foundation garment
IPC: A41C1/02
Filed: 1954-08-12
Abstract: 754,684. Foundation garments. DOWD, B. J. Aug. 12, 1954 [Dec. 16, 1953], No. 23409/54. Class 141. A foundation garment comprises a single blank of elastic material having shaped ends which are overlapped and stitched to provide a tubular body having a central panel 23 of double thickness at the front and a pair of separated overlapped body sections 26, 27 of single thickness disposed below the panel 23, the courses of the elastic yarn being oppositely inclined in the two layers of the central panel and in the separated body sections. The blank is cut from material such that the elastic courses are disposed longitudinally of the blank. The outline of the overlying end is along the lines 13, 15, 17, 10, and the underlying end has a similar outline 13a, 15a, 17a, 10a. The ends are stitched together along the lines 13, 13a, 15, 15a, 21 to form a diamond-shaped panel 23 of double thickness, and also along the lines 17, 17a, 24, but the sections 26, 27 are not stitched to each other. The upper and lower edges 7, 8 are reinforced with strips 28, 29 of elastic webbing, and suspenders 30, 31 are provided. Specification 684,946 is referred to.
Patent GB-1199561-A (GB)
Title: Improvements in and relating to Polyurethanes.
Inventor: SHORT WILLIAM STANLEY
IPC: C08G18/48
Filed: 1966-05-27
Abstract: 1,199,561. Polyurethanes. YORKSHIRE DYEWARE & CHEMICAL CO. Ltd. 25 Aug., 1967 [27 May, 1966], No. 23761/66. Heading C3R. Polyurethanes having a plurality of methylol groups along the length of the molecule, and appendant to the polymer chain may be prepared by reacting the polyurethane with formaldehyde in solution, the reaction mixture being substantially free from water, and the amount of formaldehyde used being from 0À4 to 1À4% based on the weight of the solid polyurethane. The polyurethane is suitably one based on a polyether, polyester or polyesteramide. The reaction may be carried out under acidic conditions using 1% of glacial acetic acid or under alkaline conditions using 1% of pyridine. Preferably, a 45% solution of the polyurethane in ethylacetate is reacted with an aqueous or alcoholic solution of formaldehyde or formaldehyde in the form of a gas. The polyurethane so obtained may be cured with a polyisocyanate.
Patent GB-499675-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/08
Filed: 1937-09-01
Abstract: 499,675. Smokers' ash - receptacles. SLEIGH, H. L., CHESTON, A. S., and BOOTH, J. H. Sept. 1, 1937, No. 23918. [Class 130] An ash-receptacle has a member 5 with a guide groove 10 engaged by a pin 15 carried by a container 12 provided with an ash-receiving opening 17 and an inclined end wall 18. When forward movement of the container 12 is arrested by the engagement of the pin 15 with the end 21 of a flange 19 which fits over a flange 6 on the member 5, the pin 15 enters an annular groove 11 which permits the container to be inverted to discharge ash &c. The container may have a pair of projections of different width to engage corresponding grooves in the member 5 and may be constructed by die-casting metal or moulding synthetic resin. To prevent rattling of the container, a resilient spring strip located in the member 5 bears against the casing. The strip may have its ends inserted in slots and be bowed to engage the container or it may be anchored at one end to the casing. In modified constructions, rattling is prevented by a spring-pressed plunger or ball that bears against the container, or by fitting the member 5 with an end cover having a small hole to permit a restricted air flow into the member as the container is withdrawn.
Patent GB-924277-A (GB)
Title: Magnetron
Inventor: TWISLETON JOHN ROBERT GEOFFREY
IPC: H01J23/48
Filed: 1960-07-08
Abstract: 924,277. Magnetrons. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 30, 1961 [July 8, 1960], No. 23965/60. Class 39 (1). A lumped capacitance in the output circuit of a magnetron forms a tight coupling in conjunction with the inductance of the output conductors. An output strap 11, connected to anode vane 2, extends through an aperture 13 in polepiece 7 to a disc 17 which in conjunction with the polepiece provides a shunt capacitance C1. The disc is connected to the inner conductor of coaxial line 9, 10 through a cylindrical conductor 14. The inductances L1, L2 of conductors 11, 14 together with the capacitance C1 can be so adjusted that the output impedance seen from the magnetron is lower than the impedance of line 9, 10. This increases the tightness of the coupling. The capacitance C1 may be increased by inserting ceramic material between members 7, 17. The disc may be replaced by an annular concentric cylinder lying between conductors 9, 10. In this case, L2 would be zero. In the construction shown, alternate vanes 2 of the magnetron are connected by straps 5, 6.
Patent GB-774649-A (GB)
Title: Tetrahydroisoquinolino-alkyl--ß-phenoxy ethers and process of making same
IPC: A61K31/00
Filed: 1955-08-19
Abstract: The invention comprises ethers of the general formula: <FORM:0774649/IV(b)/1> wherein R is an alkyl or alkoxy radical of 1-3 carbon atoms, or a chlorine atom, and their water-soluble acid addition salts, and their preparation either by condensing tetrahydro isoquinoline with an ester of the appropriate mono-aryloxy glycol, the esterifying group being a halogen atom or an aryl sulphonic acid group, or by reacting the appropriate R-substituted phenol or an alkali metal salt thereof with an ester of N-(b -hydroxy ethyl)-1,2,3,4-tetrahydro isoquinoline, the esterifying group being as in the first method.  This (the first) method is advantageously performed with an excess of the base in presence of an alkali metal, alkali metal amide or alkali metal hydride, preferably in an inert solvent such as benzene, toluene or dioxan with heating under reflux. The second method is preferably carried out in a solvent such as ethanol, aqueous ethanol or aqueous acetone, by heating under reflux. In the examples N - ethyl - 1,2,3,4 - tetrahydroisoquinoline - b  - 21 - methyl phenyl ether is prepared from the following pairs of reactants: tetrahydroisoquinoline and o-cresol-b -bromoethyl ether, tetrahydroiisoquinoline and glycol 21-methyl phenyl ether-p-toluene sulphonyl ester, o-cresol and N-(b -hydroxyethyl)-tetrahydroisoquinoline p-toluene sulphonyl ester, and o-cresol and N-(b -chlorethyl)-tetrahydroisoquinoline; N - ethyl - 1,2,3,4 - tetrahydroisoquinoline - b  - 21 - methoxyphenyl ether is prepared by reacting tetrahydroisoquinoline with catechol monomethylether-b -brom ethyl ether and by reacting catechol monomethyl ether with N - (b  - chlorethyl) - tetrahydroisoquinoline; and N - ethyl - 1,2,3,4 - tetrahydroisoquinoline - b  - 21 - chloro phenyl ether is prepared from tetrahydroisoquinoline and o-chlorophenol-b -brom ethyl ether and from o-chlorphenol and N-(b -chloroethyl)-tetrahydro isoquinoline.  The use of other similar starting materials is also referred to.  The hydrochlorides of the above reaction products are described and other inorganic and organic salt-forming acids are referred to.  Starting material. N-(b -chloroethyl)-1,2,3,4-tetrahydroisoquinoline is prepared from the corresponding hydroxyethyl compound and thionyl chloride.ALSO:A pharmaceutical composition comprises a tetrahydroiso-quinoline compound of the formula <FORM:0774649/VI/1> wherein R is an alkyl or alkoxy radical of 1-3 carbon atoms or a chlorine atom, or an acid-addition water-soluble salt thereof, together with a diluting agent such as sugar, lactose, talcum, starch or pectin and/or a binder such as gelatine, gum arabic, methyl cellulose, yeast extract, agar or tragacanth.  Injectable solutions of the above salts in water or physiological saline are also referred to.
Patent GB-367325-A (GB)
Title: Improvements relating to the carbonization of metal
IPC: H01J19/00
Filed: 1930-08-11
Abstract: 367,325. Carbonizing metal surfaces. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Elsey, H. M.; 378, College Avenue, Oakmont, Pennsylvania, U.S.A.) Aug. 11, 1930, No. 24020. Convention date, Aug. 14, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 305,465, [Class 82 (ii), Washing granular &c.]. [Classes 72 and 82 (ii).] A modification of the process of carbonizing metal surfaces described and claimed in the parent Specification, consists in reducing the oxidized metal surface prior to carbonizing. A wire or ribbon 4 of metal is passed through an oxidizing chamber 8 supplied with air or other oxidizing gas through a nipple 13 and then through a closure member 7 through which a neutral or reducing gas is blown to remove all traces of oxidizing gas. The wire then passes through a reducing chamber 6 through which a reducing gas such as hydrogen or natural gas is passed by means of nipples 16, 16<1>, and then through another closure member 7 into a carbonizing chamber 1 in which it is exposed to the action of hydrocarbons, such as acetylene mixed with petroleum or casinghead gasoline, which enter the chamber through a nipple 17 and escape at 18. The wire is preferably heated while passing through the oxidizing and reducing chambers. and the carbonizing furnace is maintained at a temperature of 700-1000‹ C. either by gas jets. 11<1> or by electrical heating. Alternatively the wire may be heated by electrical energy as described in Specification 310,920, [Class 72, Iron &c.]. The hydrocarbon vapours may be mixed with an inert gas e.g. nitrogen, argon or helium and preferably are free from uncombined hydrogen. Other hydrocarbons or mixtures of hydrocarbons, e.g. ethylene or ethane may be used. The metal carbonized may be nickel, cobalt, iron or alloys of these metals such as nichrome or konel and the invention relates particularly to carbonizing metals for use as plates or grids in electron tubes, the carbonized strip being heated in vacuo and then formed into the grids or plates.