baber/WOPTO huggingface dataset:
Patent GB-1020764-A (GB)
Title: Production of solid water-soluble condensation resins derived from urea, formaldehydeand polyamines and which are stable in storage
Inventor: BRANDEIS HANS
IPC: C08G12/04
Filed: 1962-12-10
Abstract: A stable, water-soluble resin is obtained by condensing urea, formaldehyde and an aliphatic polyamine in aqueous solution in the presence of a monobasic acid other than formic acid and a cocondensable compound which will introduce anionic groups into the resin, present in a molar ratio of less than 1 with reference to the amino groups of the polyamine, and then, neutralizing and drying the product.  The condensation may be carried out in three stages, (1) an alkaline precondensation, (2) an acid main condensation, and (3) a neutral to weakly alkaline after-condensation. For each mol. of urea there may be 2.2 to 4 moles of formaldehyde, 0.1 to 1 mole (with reference to nitrogen) of polyamine and 0.05 to 0.5 mole of compound which introduces anionic groups.  The resin may be dried by spray drying. In examples, resins are obtained from urea, formaldehyde, ethylene diamine and diethylene triamine using glycocoll, sodium bisulphite, casein, g -aminobutyric acid and sodium g -aminobutyrate as compounds, which introduce anionic groups, and hydrochloric acid as the monobasic acid.  Other compounds which introduce anionic groups listed are alanine, glutamic acid, aminocaproic acid, p-aminobenzoic acid, taurine, sulphanilic acid and sodium and potassium sulphites.ALSO:The wet strength of paper is improved by incorporating in the paper a stable, water-soluble resin obtained by condensing urea, formaldehyde and an aliphatic polyamine in aqueous solution in the presence of a monobasic acid other than formic acid and a cocodensable compound which will introduce anionic groups into the resin, present in a molar ratio of less than 1 with reference to the amino groups of the polyamine, and then neutralizing and drying the resin products.  The condensation may be carried out in three stages, (1) an alkaline precondensation, (2) an acid main condensation, and (3) a neutral to weakly alkaline after-condensation.  For each mol of urea there may be 2.2 to 4 mols of formaldehyde, 0.1 to 1 mole (with reference to nitrogen) of polyamine and 0.05 to 0.5 mole of compound which introduces anionic groups.  The resin may be dried by spray drying.  In examples papers are prepared from bleached and unbleached sulphite cellulose and bleached and unbleached soda cellulose, alum and resins obtained from urea, formaldehyde, ethylene diamine and diethylene triamine using glycocoll, sodium bisulphite, casein, g -aminobutyric acid and sodium g -aminobutyrate as compounds which introduce anionic groups, and hydrochloric acid as the monobasic acid.  Other compounds which introduce anionic groups listed are alanine, glutamic acid, aminocaproic acid, p-aminobenzoic acid, taurine, sulphanilic acid and sodium and potassium sulphites.
Patent GB-1022181-A (GB)
Title: Method and apparatus for formation of granular material
IPC: B01J2/12
Filed: 1962-12-11
Abstract: 1,022,181. Spray evaporators; making porous granules. ETABLISSEMENTS KUHLMANN. Dec. 11, 1962 [Dec. 13, 1961], No. 46731/62. Heading B1B. Porous granules are produced from solutions or slurries of solid material in liquids by spraying the solution or slurry through atomizer H into a rotating oven A which contains a bed of granules, and heating the atomized material, by means of flame burners I, I<SP>1</SP>, before it comes into contact with the bed whereby the liquid is evaporated. The partially dried particles coalesce and are deposited on the bed of granules which move towards the ends of the oven as they grow larger. The ends of the oven are provided with rotary discharge conduits B, B<SP>1</SP> in which are arranged sieves or screens C, C<SP>1</SP>. Adjustable pick-up funnels M, M<SP>1</SP> transfer granules from the oven on to the screens C, C<SP>1</SP> which are provided with rocking hammers L, L<SP>1</SP>. The oversized granules are discharged into stationary drums D, D<SP>1</SP>, whilst the undersized granules are returned to the drum. The fumes from the oven are conveyed by fan P into humid cyclone dust extractor E; and the fines so recovered are returned to vat K in which is prepared the solution or slurry to be pumped to atomizer H via storage chamber J. To impede sliding of the granules in the oven, it may be fitted with baffles, or the inside walls may be roughened. The apparatus may be used to prepare a granulated catalyst from a slurry of iron and chromium hydroxides. The drying of alumina, zinc carbonate, uranium compounds, copper oxides on a refractory carrier, and fertilizers is also referred to.
Patent GB-1363339-A (GB)
Title: Preparation of phosphazene polymers
IPC: C08G79/02
Filed: 1972-10-11
Abstract: 1363339 Phosphazene polymers HORIZONS RESEARCH Inc 11 Oct 1972 [13 Oct 1971] 46889/72 Heading C3R Phosphazene polymers containing recurring units of formula where each of R and R<SP>1</SP> represents or -OCH 2 (OF 2 ) b H, R and R<SP>1</SP> are different from each other and a and b are from 0 to 9, are obtained by reacting a polymer containing recurring units of formula with an alkoxide containing a radical -OR<SP>1</SP> so that some of the radicals -OR are replaced by radicals -OR<SP>1</SP>. In examples poly bis-(trifluoroethoxy)phosphazenes are reacted with sodium heptafluorobutoxide, with sodium pentafluoropropoxide and with sodium octafluoropentoxide.
Patent GB-1129620-A (GB)
Title: Improvements in and relating to storage matrixes
Filed: 1965-11-05
Abstract: 1,129,620. Magnetic storage apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 Nov., 1965 [10 Nov., 1965], No. 46996/65. Heading H3B. A support for a magnetic storage matrix comprises a frame shaped part 7 and a baseplate 5 mounted on top of one another and sandwiching therebetween electrical contacts 9 to which the wires 1 of the matrix are connected. The inwardly extending parts of the contacts are bent over at right angles in order to pass through apertures in the base-plate 5, Fig. 3 (not shown) or the frame part. Wires 1 are passed over the frame part 7 and connected to the contacts 9. The support may be mounted on an apertured insulating board carrying printed circuit wires in which case the bent over portions of the contacts pass through the apertures in this board to effect electrical connection. If no insulating board is used the bent over portions are held in position in the apertures in the base-plate 5 and do not project therefrom.
Patent GB-1441090-A (GB)
Title: Coating apparatus
IPC: B05C5/02
Filed: 1972-10-13
Abstract: 1441090 Coating apparatus ILFORD Ltd 26 Sept 1973 [13 Oct 1972] 47349/72 Heading D1L Web coating apparatus comprising a hopper 44 having a liquid distribution chamber 47 and a distribution slot 45 from which the liquid is discharged onto a travelling web 41 is improved by providing in the chamber 47 a porous polyethylene tube 46 to which liquid is fed from a supply source and through the wall of which it is forced into the chamber 47, the distribution slot 45 being non-restrictive e.g. having a width of more than 0.5 mm. The improvements may be incorporated in an extrusion coating hopper (as illustrated), a curtain coating hopper [Fig. 4, (not shown)] or a slide coating hopper provided with a plurality of distribution slots, each with an associated distribution chamber and porous tube [Fig. 2 (not shown) ].
Patent GB-1061093-A (GB)
Title: Measurement of electric current
Inventor: BERGEN STEPHEN ARCHBOLD
IPC: G01R22/02
Filed: 1962-12-14
Abstract: 1,061,093. Electric analogue calculating. CAMBRIDGE INSTRUMENT CO. Ltd. Dec. 13, 1963 [Dec. 16, 1962], No. 47369/62. Heading G4G. [Also in Division G1] An electrolytic coulometer (see Division G1) uses the change in resistance of the cathode as a measure of the extent of electrolysis and thus of Si dt. It may however be adapted to measure i or di/dt. In Fig. 3 (not shown) an input current i divides between the coulometer and a feedback loop from an amplifier monitoring the output of a bridge of which the coulometer cathode is one arm, and it is shown that the amplifier output current I is a measure of the input current i, but with the advantage that if the input is disconnected the output is maintained. The circuit of Fig. 4 evaluates di/dt. The amplifier A has an output current I<SP>1</SP> proportional to V<SP>1</SP>-V, V<SP>1</SP> being proportional to i and V to the cathode resistance P. It is the current I<SP>1</SP> which is integrated by the coulometer so that V is proportional to SI<SP>1</SP>dt. From these facts, and on the assumption that the amplifier gain is high, it is shown in the Specification that I<SP>1</SP> (which is metered at M) is proportional to di/dt.
Patent GB-1059187-A (GB)
Title: Method and apparatus for deflashing molded resilient pieces
IPC: B24C3/26
Filed: 1963-12-03
Abstract: 1,059,187. Blasting. PANGBORN COR. PORATION. Dec. 3, 1963 [Dec. 28, 1962, Aug. 5, 1963], No. 47743/63. Heading B3D. [Also in Division B5] Apparatus for removing flash from moulded resilient pieces by differential freezing and abrasive blasting has means adjacent a loading/ unloading doorway for providing an air curtain across the doorway when the door is open, thereby preventing the entry of warmer air into the cold interior of the apparatus. In apparatus constructed as in Specification 1,048,477, a fan 125 propels air through an elongated nozzle 127 extending along one side of the doorway 3; an intake slot 129 on the opposite side of the doorway is connected to the suction side of the fan by a recirculation duet located within the housing so that the air is cooled. The nozzle may be located over the doorway to direct the air stream downwardly.
Patent GB-1421393-A (GB)
Title: Method of producing a metal ingot by electroslag melting
IPC: C22B9/18
Filed: 1973-10-12
Abstract: 1421393 Electroslag melting processes INSTITUT ELEKTROSVARKI IMENI EO PATONA AKADEMII NAUK UKRAINSKOI SSSR 12 Oet 1973 [2 Feb 1973] 47838/73 Heading B3F [Also in Division H2] A method of producing a metal ingot 10 by electroslag melting of at least two consumable electrodes 1, 2, 3 or at least two groups of consumable electrodes comprises connecting each electrode or group to a separate power source 4, 5, 6 and varying the power supplied to each electrode or group to intermittently move a zone of maximum heat supply over the cross-section of a cooled mould 7. The method enables a reduction in the volume of the metal pool 11 and initially all the electrodes which dip into a slag bath 9 are supplied with power. After steady state melting conditions have been attained the current and voltage of the supply to each electrode or group are alternately decreased to provide minimum power and increased to provide maximum power thereby ensuring a progressive movement of the point of maximum heat along the slag bath from the first to the third electrode or group. The power supply may be controlled to continually repeat or reciprocate the movement of the maximum heat point.
Patent GB-1112408-A (GB)
Title: Improvements in or relating to adhesive compositions
Inventor: HARDY ALAN
IPC: C09J111/00
Filed: 1963-12-05
Abstract: An adhesive composition comprising an organic solvent solution of a polychloroprene rubber and a minor proportion, e.g. 2 parts per 100 rubber, of dibutyl tin oxide.  The solution may also contain chlorinated rubber and comprise 30% by weight of solids. Zinc oxide and calcium silicate are other specified additives while a solvent mixture specified is methyl ethyl ketone/petroleum spirit and toluol (3/2/ 1/2 ).ALSO:A sole and a shoe bottom are bonded using an adhesive composition comprising an organic solvent solution of a polychloroprene rubber and a minor proportion of dibutyl tin oxide. Other additives are chlorinated rubber, zinc oxide and calcium silicate, the solvent preferably being a mixture of methyl ethyl ketone/petroleum spirit/toluol in the ratio 3 : 2 : 1/2 per 100 rubber, the composition preferably containing 30% solids by weight. In an example the coating is applied to a roughened leather upper and to a butadiene-styrene rubber soling material and allowed to dry. After 3 days in store the coating on the rubber is reactivated by heating for 15 seconds in a conventional shoe sole heater to 90-100 DEG C.; 3 seconds after removal from the heater the two portions are clamped together under 100 p.s.i.p. for 12 secs.
Patent GB-1388997-A (GB)
Title: Quartz crystals
IPC: H03H9/19
Filed: 1973-10-16
Abstract: 1388997 Quartz resonators WESTERN ELECTRIC CO Inc 16 Oct 1973 [19 Oct 1972] 48063/73 Heading H1E A rectangular-AT-cut (3520'/0/0) quartz crystal resonator has a length-to-thickness ratio equal to or greater than 30, and a width-tothickness ratio within one of the ranges 2À5 to 3À5, 5À5 to 7, 8À5 to 10, 11À5 to 13À5. The resonator operates in thickness-shear mode and the prescribed dimensional ratios result in minimal coupling with the face-shear mode. The ratio l./t. preferably less than 150 and preferably equal to 60. The angle # may lie within the range 3510' to 3530'.
Patent GB-1179590-A (GB)
Title: Improvements in or relating to Butterfly Valves
Inventor: KITAZAWA KAZUO
IPC: F16K1/22
Filed: 1967-10-23
Abstract: 1,179,590. Valves. K. KITAZAWA. 23 Oct., 1967 [17 July, 1967], No. 48110/67. Heading F2V. Actuation of the valve member 5 of a butterfly valve having a body 1, is effected by means of a handle 10 which is mounted on an extension 8 of the valve member spindle 6, the handle being retainable in any desired position by means of a friction brake consisting of a plate 31 and a tapered plug which is disposed within a portion of the handle 10 and is movable into and out of engagement with the plate. The handle is formed with a first end portion 11, which is secured to the spindle 8, an intermediate box-shaped portion 12 and a hand grip portion 13, the box-shaped portion having a crosssection which increases in the direction of the grip portion and has its bottom side formed substantially V-shaped, the groove so formed serving to guide the plug. The plug is biased into engagement with the friction plate 31 by means of a spring 27. one end of which engages the handle grip portion and the other end of which is secured to an extended portion 22 of a lever 20, the lever being pivoted at 24 and having a further portion 21 engaging the plug. Grooves 32 formed in the box-shaped portion permit the handle 10 to be moved relative to the friction plate 31.
Patent GB-1536770-A (GB)
Title: Apparatus and method for feeding blanks in a press and press making use thereof
IPC: B21J13/08
Filed: 1976-11-18
Abstract: 1536770 Feeding blanks in presses L SCHULER GmbH 18 Nov 1976 [9 Dec 1975] 48110/76 Heading B3H Apparatus for feeding blanks 3 from a feed shoot 7 to a punching position in a press having a ram (2), Fig. 2 (not shown), movable substantially horizontally, comprises a feed slide for moving the blanks from the shoot substantially linearly and horizontally to the punching position and holding bow 17, i.e. which co-operates with the feed slide to hold a blank 3 in the punching position. The feed slide comprises a feed arm 8 and a feed member 9 movable relative to one another and together with the holding bow 17 are actuated by the ram drive. A blank is moved by the arm 8 and member 9 to the punching position where it is held by the bow 17 and arm 8 after the member 9 is withdrawn leaving the blank held between the punch and a die 11 by a retractable clamp pin (25). The feed arm 8 and holding bow 17 are then retracted prior to punching the blank.
Patent GB-1412588-A (GB)
Title: Biological trickle filter
IPC: C02F3/10
Filed: 1971-12-20
Abstract: 1412588 Biological trickle filter containing foamed silica GARY AIRCRAFT CORP 19 March 1973 [20 Dec 1971] 48126/73 Divided out of 1412587 Heading C1C A biological trickle filter comprises an enclosure having a base member and a bed of rigid and porous inorganic foamed silica mounted on the base member within the enclosure. Preferably the pore size of the foam is 10-300 microns and the foam is coated with an organic polymer and is stacked in the form of pieces of rectangular shape. Means for introducing a liquid into the enclosure and means for introducing an oxygencontaining gas to the enclosure may also be included. Specifications 1,412,587, 1,412,589 and 1,412,590 are referred to.
Patent GB-1415198-A (GB)
Title: Aircraft power plants
IPC: F02K3/04
Filed: 1972-10-20
Abstract: 1415198 Jet propulsion plant BRITISH AIRCRAFT CORP Ltd 1 Oct 1973 [20 Oct 1972] 48312/72 Heading F1J A jet propulsion plant for supersonic aircraft includes a turbojet engine 3 having an annular exhaust duct 14 surrounding an augmentor compressor 16 driven by the engine L.P. turbine and supplied with air via ducts 20 passing across exhaust duct 14 from inlet flaps 24, 27 in the nacelle 1 containing the plant, and delivering the compressed air via a nozzle 17 to a variable area nozzle 11 common with the turbojet engine exhaust. Flaps 24, 27 are opened wide at take-off and landing to reduce noise, and flaps 27 only at cruising. Variable area nozzle 11 includes two pivoted bucket members 12. Heating of the compressed air may be effected by fuel injection and burning means 31.
Patent GB-1148289-A (GB)
Title: Improvements in or relating to a broad-band transformer
IPC: H01F19/06
Filed: 1966-04-15
Abstract: 1,148,289. Impedance transformers. FUJITSU Ltd. 15 April, 1966 [15 April, 1965], No. 48428/68. Divided out of 1,141,348. Heading H1W. A distributed-parameter broadband transformer, particularly a Ásec pulse transformer, comprises an even number 2n (n#2) of electrically equivalent transmission lines L 1  . . . L 2n  connected either in series (Fig. 1) or parallel (Fig. 2, not shown) at one end and in two equal parallel-connected (Fig. 1) or series-connected (Fig. 2) groups at the other end, the lines being wound about a single, common magnetic (e.g. ferrite) core where the number of turns Ni of Li is defined, in the case of Fig. 1, by Ni = (2n-i)k (i = 1,2 ... n) Ni = (2n-i+1)k (i = n+1 . . . 2n) and, in the case of Fig. 2, by Ni = (n-i)k (i = 1,2 ... 2n), k being an arbitrary integer (preferably 1 or 2) and negative values indicating turns wound in a reverse direction. A load may be connected across either c, d or d, e. For Fig. 1, the impedance seen from a, b is 4n<SP>2</SP>Z 0  and from d, e is Z 0 /n<SP>2</SP>. For Fig. 2, the corresponding impedances are Z 0 /4n<SP>2</SP> and Z 0 n<SP>2</SP>. Z 0  is the characteristic impedance of the lines.
Patent GB-1084445-A (GB)
Title: Improvements in or relating to muffles
IPC: F27D99/00
Filed: 1964-12-01
Abstract: 1,084,445. Continuous heat treatment furnaces. B.T.U. ENGINEERING CORPORATION. Dec. 1, 1964 [Dec. 3, 1963], No. 48847/64. Heading F4B. A transition section separating muffle sections 2 and 4 of a continuous furnace through which sections hydrogen and oxygen are circulated respectively, comprises parallel plates 16, 18 welded to said sections 2 and 4, a cylindrical perforated portion 24 welded to the periphery of plates 16, 18 and to which are welded baffles 50, 52, 58, 60 and a central partition 54 housing a toroidal member 66 with holes on its inner surface through which nitrogen is passed to form a gas curtain between the hydrogen and oxygen. A combustion chamber 44 is formed between the portion 24 and a cooling jacket 38. Water is passed in at 40 and the outlet 42 is placed concentrically with the outlet from the combustion chamber in order to impart a suction of combustion gases therefrom. Articles to be heat treated pass on a conveyer 10 moving on a perforated plate 8 through the transition section, hydrogen passing into the combustion chamber 44 between plates 16, 50, 52, 54 and oxygen through the spaces between plates 18, 60, 58, 54. The nitrogen from the toroidal member 66 forms a barrier between these two gases. A spark plug 74 ignites the cooled combustion gases in the combustion chamber 44.
Patent GB-1408441-A (GB)
Title: Latch
IPC: E05B65/32
Filed: 1972-10-25
Abstract: 1408441 Locks AISIN SEIKI KK 25 Oct 1972 [26 Oct 1971 (3)] 49163/72 Heading E2A A latch comprises a bolt 6, a pawl 2 for retaining the bolt in latching postion an inside releasing lever 27, an outside releasing lever 12, a link 15 pivoted to the lever 12 movable to any one of at least two positions for selectively coupling both the releasing levers to the pawl in a first position of the link 15 and uncoupling or coupling only the lever 12 to the pawl in a second position of the link, the link 15 being moved by a tab 33 on a ratchet wheel to its second postion when the bolt is moved to fastening position. The bolt 4 is connected to a shaft pivotally mounted on a base plate 1a and supporting a ratchet wheel 3 which has teeth 7, 8 for selectively engagement by a tooth 9 of the pawl for safety or fully latching of the bolt. When the bolt is moved to locking position the tab 33 of the ratchet wheel abuts a tab 32 of the link 15 whereby pivoting the link 15 clockwise so that a foot 17 of the link moves out of alignment with a foot of the lever 27 and remains adjacent a tab 31 of the pawl whereby the inside releasing lever 27 is rendered inoperative and the outside releasing lever 12 remains operative. The link 15 is connected by a pin 19 and slot 16 to a locking lever 18 whereby pivoting clockwise the link 15 pivots the lever 18 anticlockwise. When the locking lever 18 is actuated, the link 15 is moved further clockwise so that the foot 17 also moves away from the pawl tab 31 whereby the outside and inside releasing levers 12, 27 are rendered inoperative. The locking lever 18 has two shoulders which selectively engage with a projecting central portion of a spring 26 and the base plate to retain the lever inoperative, partially operative or fully operative. In a modification the locking lever has one shoulder and is held in an inoperative or operative postion. When the door is closed with the locking lever 18 actuated, Fig 3 turning of the ratchet wheel pivots the pawl so that a tab 34 thereon abuts a foot 35 of the link so that the link is displaced to operative position with its foot 17 adjacent the tab 31 thus rendering the outside releasing lever 12 operative. For keyless locking; the locking lever 18 is actuated and the releasing lever 12 is actuated as the door is closed so that the link foot 35 is out of alignment with the pawl tab 34 and both outside and inside releasing levers are disconnected from the pawl. In another embodiment Fig 4 (not shown) both releasing levers are rendered inoperative when the latch is operative by a modification of the pawl whereby the tab 31 is also out of the path of the foot 17 of the link 15, when the door is closed.
Patent GB-1124287-A (GB)
Title: Improvements in the treatment of stainless steel tubes
Inventor: HABERLIN MICHAEL MELROSE
IPC: C21D8/10
Filed: 1964-12-03
Abstract: Austenitic stainless steel tubes are treated to increase their high temperature ductility by working them by a planetary swaging process followed by annealing in the temperature range 800 DEG -900 DEG C., the working and annealing being repeated at least once.  Treatment of tubes made from a vacuum melted 20% chromium, 25% nickel, mobium stabilized steel is referred to.