baber/WOPTO huggingface dataset:
Patent GB-1097627-A (GB)
Title: Water-soluble azo dyestuffs and processes for their manufacture
IPC: C08K5/3417
Filed: 1965-11-05
Abstract: Water-soluble azo dyes of formula A-N = N-B in which A is an aromatic or heterocyclic residue and B is an amino- or hydroxy-naphthalene residue bound in o- or p-position and which dyes are free of carboxylic and sulphonic acid groups and contain a group of formula <FORM:1097627/C4-C5/1> and if desired further substituents which do not impart solubility in water, in which Y is an oxygen atom an -NH- group or a direct link, R4 is an aliphatic residue, R1, R2 and R3 are alkyl or aralkyl groups or R1 and R2 or R3 together with the nitrogen atom form a heterocyclic ring and X is an anion are prepared by (a) treating a dye of formula A-N = N-B containing a group <FORM:1097627/C4-C5/2> with an alkylating or aralkylating agent or (b) an aromatic or heterocyclic amine is coupled with an amino- or hydroxy-naphthalene which couples in o- or p-position and which contains a group of the first formula above.  The dyes give orange, scarlet, brown and violet colours.ALSO:In Example 6 polyacrylonitrile staple fibres are dyed to a red shade with the water-soluble quaternary ammonium compound prepared by diazotising 2-chloro-4-nitroaniline and coupling with 2-naphthylamine-5(-3\sv-dimethylamino-n-propyl)-sulphonamide followed by methylation with methylsulphate.
Patent GB-1087615-A (GB)
Title: Non-woven pile fabrics
Inventor: SISSONS CHRISTOPHER ROBERT
IPC: D04H13/00
Filed: 1963-11-29
Abstract: A simulated pile fabric comprises a fibrous web, coextensive with a reinforcing member, and containing fibres located in planes normal to the surfaces of the web and projecting beyond a surface of the web and through the reinforcing member as fibre tufts, Fig. 3 (not shown) which are secured in the reinforcing member.  The securing of the fibre tufts is achieved by the activation of a potentially adhesive component of heterofilaments used in making the web.  The method of manufacture comprises passing a fibrous web supported on a reinforcing member, i.e. hessian, through a needle loom.  The fibre tufts may be crimped to effect spreading of the fibres to conceal the reinforcing member.  Fibres employed in making the web may be polyamide, polyester, acrylic, cellulosic, or combinations thereof.
Patent GB-1041995-A (GB)
Title: Production of cellulosic pulp of increased brightness
Inventor: KINDRON ROBERT RICHARD
IPC: D21B1/16
Filed: 1964-11-24
Abstract: Cellulosic pulps having high brightness are produced by impregnating cellulosic fibres either in oriented or disoriented form with an aqueous solution containing bisulphite ion and having a pH of 2-7 to provide at least 0.04% by weight of the bisulphite ion on the fibres, contacting the bisulphite ion-impregnated fibres with 0.01-0.5% by weight of the fibres of an alkali metal borohydride and permitting the reagents to act on the fibres to increase their brightness.  The bisulphite ion may be introduced as sodium, potassium, magnesium, calcium or ammonium bisulphite or as sulphur dioxide or sulphurous acid.  The pH of the solution used in the first stage of the process may be adjusted to 5-7 by the addition of an alkali metal sulphite and the solution may also contain sodium carbonate, bicarbonate or hydroxide and magnesium hydroxide.  The process is applicable to the pulping of pines, spruces, firs, hemlocks, beeches, maples, oaks and birches.  Wood chips may be impregnated with a bisulphite-containing pulping liquor, drained and introduced into a fibre-separation device, e.g. a disc refined, hammer mill or rod mill operating at 140 DEG -210 DEG F. at which stage the borohydride is added, removed from the fibre-separating device and the water removed.  Alternatively the borohydride may be added after the wood has been divided into fibres or the fibres may be impregnated with the bisulphite ion in a grinder and the borohydride subsequently added.  The fibres may also be pulped without bisulphite and the bisulphite added to the preformed pulp followed by the addition of the borohydride. The process is also applicable to the treatment of pulps which have been bleached with hydrogen peroxide or hypochlorite.  The pulp may subsequently be bleached with a hydrogen peroxide solution containing sodium silicate and sodium hydroxide.
Patent GB-1207998-A (GB)
Title: Lithographic printing
Inventor: SCHMIDLIN RAYMOND JOSEPH
IPC: B41L39/00
Filed: 1967-10-20
Abstract: 1,207,998. Rotary lithographic printing machine. ADDRESSOGRAPH - MULTIGRAPH CORP. 20 Oct., 1967 [20 Oct., 1966], No. 47935/67. Heading B6C. In an automatically operable rotary lithographic printing machine the offset or blanket cylinder is omitted the copy sheet on the impression cylinder 26 coming into direct contact with the master on the plate cylinder 25. The impression and master cylinders are movable from each other and the forme roller 30 which applies both the ink and the moisture to the master cylinder is connected in such manner that it is not lowered to operative position until after means have been effective to sense the presence of a master on the master cylinder. Similarly the master and impression cylinders do not come into contact until a master has been clamped to the master cylinder and pre-inked and a copy sheet clamped to the impression cylinder. Each master is prepared with a suitable treating solution of a chemical nature to accomplish activation of the essential hydrophilic oleophobic background of the master before being fed to the master cylinder. The essential operating characteristics of the machine are shown in Figs. 1A to 1D wherein in the pre-ink phase the master has been clamped to the cylinder 25 and the forme roller 30 has been lowered into contact with the master to apply ink and water for a predetermined number of revolutions. Following this phase a copy sheet is fed to the cylinder 26 which is then raised into contact with the plate cylinder for the printing operation. The machine includes a sensing device to detect the passage of a copy sheet to the cylinder 26. Actuation of this device is a signal for a sequence of events which results in cylinder engagement and vice versa. The copy sheets thus detected are counted and upon satisfaction of the required number the master is ejected from the cylinder 25, the roller 30 is removed to its inoperative position and the cylinders are separated through cam and eccentric mechanism. The plate cylinder 25 carries a rubber underlay and the surface of the impression cylinder is chrome. Automatic means are provided for stripping the masters from the plate cylinder,
Patent GB-1360661-A (GB)
Title: Accelaration-responsive switching arrangements
IPC: H03K17/292
Filed: 1972-11-15
Abstract: 1360661 Crash bags FERRANTI Ltd 15 Nov 1972 [16 Oct 1971] 48243/71 Heading B7B [Also in Divisions H1 and H3] In an inertia responsive switching system used for actuating an inflatable crash protection air-bag in a motor vehicle a two-state inertia switch 12-15, Fig. 1, is used to control an electronic timing circuit 21 whereby operation of the air-bag is prevented if a predetermined acceleration/retardation is not maintained for for a minimum predetermined duration. The inertia switch has a stable state (shown) at which a conductive magnetic ball 14 is held by a magnet (19), Fig. 3 (not shown), to close a circuit between fixed contacts 13, 15 whereby the output from a bi-stable circuit 11 shunts the capacitor (C), Fig. 2 (not shown), ofthe timing circuit 21 via a transistor switch 50. Upon a predetermined acceleration X being reached the ball 14 moves to its unstable state at which a circuit through contacts 12, 15 is closed whereby the output from the bi-stable circuit 11 changes the timing capacitor (C) through resistor (R) in circuit 21. If this condition obtains for sufficient time an SCR 41 is fired in the inflation bag relay circuit 40 when a PNP transistor (35) in a trigger circuit 30 is forward biased by this voltage on capacitor (C) exceeding the voltage from a potential divider (32) (33) in the trigger circuit 30. Alternatively, if the acceleration is not maintained, the ball 14 recloses the circuit through contacts 13, 15 whereby the timing capacitor (C) in timing circuit 21 is immediately discharged and operation of the inflation bag inhibited.
Patent GB-1374622-A (GB)
Title: Unsaturated polyester resin compositions
IPC: C08G63/692
Filed: 1971-10-20
Abstract: 1374622 Phosphonate esters REICHHOLD CHEMICALS Inc 20 Oct 1971 [20 Oct 1970] 48769/71 Heading C2P [Also in Division C3] A phosphonate intermediate is prepared by reacting a phosphonate having the formula wherein R 1 , R 2  and R 3  are at least one of alkyl, aralkyl, alkaryl, alkenyl and phenyl; the alkyl, aralkyl, alkaryl and alkenyl having from one to five carbon atoms in their aliphatic chain and an organic hydroxy acid and/or a lactone having from 2 to 5 carbon atoms at a temperature ranging from 110‹ C. to 180‹ C. and in the presence of a catalyst. In the examples the intermediates are prepared by reacting dimethyl methane phosphonate or diethyl ethane phosphonate with glycolic acid or beta-propiolactone in the presence of zinc acetate and antimony oxide.
Patent GB-1377371-A (GB)
Title: Automatic orthophoto printer
IPC: G01C11/00
Filed: 1971-10-20
Abstract: 1377371 Photogrammetry GESTALT INTERNATIONAL Ltd 20 Oct 1971 [21 Oct 1970] 48796/71 Heading H4D In a photogrammetric apparatus as described in Specification 1,231,998 and as modified as described in Specifications 1,290,951 and 1,327,692, the #2 signals circulating in the memory system of Fig. 6, after having caused the rasters of the vidicons 25, 25 to distort whereby the X parallax between the video signals thereof is reduced to zero, are used to continue the said distortion during the operation of the printing C.R.T. 59, the latter operating with an undistorted scan and printing out a small patch of the map at a time.
Patent GB-1142200-A (GB)
Title: Improvements relating to vacuum switch contacts
Inventor: GRINDELL DUNCAN HOLMES
IPC: H01H1/02
Filed: 1965-11-17
Abstract: 1,142,200. Vacuum switches; contact materials. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 Oct., 1966 [17 Nov., 1965], No. 48875/65. Heading H1N. [Also in Division C7] The contacts 6, 7 of a vacuum switch are provided with zones of a low arcing voltage material consisting of an alloy of bismuth and antimony between 55% and 99% by weight of antimony. The contacts 6, 7 consist of bodies of high arcing voltage material such as tungsten or molybdenum having an annular groove 23 and a central recess 21 machined therein and filled with the alloy. The surface of the alloy may be below that of the surrounding body. The vacuum switch is provided with a metal shield 15 lined with a metallic mesh 20 to enhance the adhesion of evaporated contact material.
Patent GB-1110533-A (GB)
Title: Improvements relating to containers fitted with pourers
Inventor: BENNETT ROGER WILSON
IPC: B65D47/04
Filed: 1965-11-17
Abstract: 1,110,533. Container closures. BETTIX Ltd., and CEREBOS FOODS Ltd. 14 Nov., 1966 [17 Nov., 1965], No. 48899/65. Heading B8T. A container closure comprises a plastics pouring spout 1, for salt &c., of U-shaped crosssection, having a top 2 and two quadrantshaped side-walls 3, two integral pivot pins 7 engaging under the lid 6 of a container. The pouring spout 1 is received in a slot 4 of the lid 6, the slot being slightly longer than the effective radius of the two side-walls 3 &c., so that when in the closed position, the spout may be slidden rightwards of Fig. 1 to the position shown, thus engaging notches 12 in the sidewalls over the end 13 of the slot. The pouring spout 1 is then held locked in its closed position. To open the pouring spout 1, it is slidden leftwards of Fig. 1, from the solid line position shown to the chain-dotted position, accordingly disengaging the notches 12 from the slot end 13. It is then turned anti-clockwise about its pivot pins 7 to the chain-line position shown, snapping retaining-wedges 14 along the side-walls 3 past the sides of the slot 4. In normal use, the pouring spout 1 is closed merely by turning it back clockwise to the chain-dotted position shown, the retaining-wedges 14 snapping through the slot 4 to engage under the lid 6 and prevent accidental opening. The pouring slot 1 is slidden to its fully-locked position only for transportation &c. of the container. To prevent salt &c. leaking out through the slot 4 adjacent the pivot pins 7 when the pouring spout 1 is in the fully-locked position, an extension parallel to and below the top 2 may be provided on the spout 1, to engage inside the lid 6. The curved edges of the side-walls 3 are joined by a wall 16 except in the area of the pourer spout top 2, to control the rate of pouring &c.
Patent GB-1316309-A (GB)
Title: Thermoplastic toner fixing process and device
IPC: G03G15/20
Filed: 1970-10-16
Abstract: 1316309 Rollers MINNESOTA MINING & MFG CO 16 Oct 1970 [17 Oct 1969] 49353/70 Heading F2U [Also in Division G2] A roll 10 which has a surface layer 13 of a silicone elastomer containing 0À1-20% of PTFE contacts a thermoplastic toner image on a paper sheet during the fusing of the image. A backing roll having a surface layer of silicone elastomer may also be employed. Either or both rolls may be heated.
Patent GB-1117810-A (GB)
Title: Improvements in telephone instruments
Inventor: OLSSON ALARIK
IPC: H04M1/62
Filed: 1966-11-04
Abstract: 1,117,810. Sets. GYLLING & CO. A.B. 4 Nov., 1966, No. 49565/66. Heading H4J. In a loud-speaking telephone subset, the loud-speaker 6 is supported behind the impulse transmitter 5 by means of a substantially sound-impervious, funnel-shaped member 7 which is fastened to the impulse transmitter's housing (Figs. 3, 4, 5, 8 not shown) or directly to the front panel 2 of the subset. A number of apertures for emitting sound are provided in the panel around the impulse transmitter. The panel may be detachable and may include integrally therewith a dust proof housing for the impulse transmitter (Figs. 6 and 7, not shown).
Patent GB-1023889-A (GB)
Title: Continuous process for extracting anhydrous hydrofluoric acid from its aqueous solutions
IPC: C01D3/02
Filed: 1963-12-16
Abstract: Anhydrous hydrogen fluoride is extracted from its aqueous solution by a continuous process comprising a first extraction of HF by a water-insoluble amine or amine solution, a second extraction of HF from the amine solution by an aqueous solution of an alkali metal fluoride, addition of the same alkali metal fluoride in solid form to the last solution, crystallization of alkali metal bifluoride so produced and decomposition to liberate anhydrous HF.  The mixture may be cooled to achieve crystallization and the bifluoride separated, dried and calcined at 500 DEG  C. to remove anhydrous HF.  The process can be operated according to a practical embodiment by recycling the dry alkali metal fluoride from the decomposition of the bifluoride for formation of the bifluoride, recycling the solution of fluoride from the crystallization of bifluoride to the second extraction step and recycling the organic phase from the second extraction step to the first extraction stage.  The initial solution may have a concentration of less than 1% of hydrogen fluoride by weight.  Preferred extraction agents are (1) a mixture of amines with molecular weight 350-400, e.g. "Amberlite LA.2" (Registered Trade Mark) (sec.-laurylamine), which can be dissolved in a hydrocarbon or mixture of hydrocarbons, and (2) an aqueous solution of potassium fluoride.
Patent GB-1284253-A (GB)
Title: Dipyridyl dialdehydes
Inventor: CHAPURLAT ROBERT
IPC: C08G73/10
Filed: 1970-07-27
Abstract: 1284253 Dipyridyl dialdehydes RHONEPOULENC SA 27 July 1970 [28 July 1969 26 Aug 1969] 49758/71 Divided out of 1284252 Heading C2C Novel dialdehydes of formula in which Ar represents a divalent radical comprising at least one aromatic nucleus, are prepared by reacting a dialdehyde of formula OHC-Ar-CHO with 4,4<SP>1</SP>-dimethyl-2,2<SP>1</SP>-dipyridyl. The dialdehydes are polymerizable as described in Specification 1,284,252.
Patent GB-1480689-A (GB)
Title: Portable alarm apparatus
IPC: G10K7/04
Filed: 1975-12-04
Abstract: 1480689 Portable alarms ITT INDUSTRIES Inc 4 Dec 1975 [11 Dec 1974] 49819/75 Heading G5J A portable alarm comprises a casing 1 containing an electrically driven audible sound generator 38 such as a siren, the sound generator having a normally closed switch 66 in its energizing circuit. The switch 66 is preferably mounted in a carrying handle 58, 61 or in a shoulder strap threaded through slots 70 in extensions 56 of the casing cover 50 whereby the sound generator is not normally energized while the alarm is being carried but becomes energized if the alarm is dropped or otherwise released. The casing may also include a rechargeable battery 17 and a light source 35 which is operated by a separate switch 16 mounted on the casing. A further 2-position switch 13 on the casing is used to connect the switch 66 (and a warning light 14) to the battery and to connect an additional switch 15 in the energizing circuit of the sound generator so that the alarm can be activated irrespective of whether or not it is being carried. Time delays may be included in the energizing circuit to avoid energization of the alarm after accidental temporary closure of switch 66 and to prevent de-energization of the alarm for a predetermined time after its activation. A key or combination lock may be provided to prevent unauthorized deactivation of the alarm.
Patent GB-1125421-A (GB)
Title: Improvements in and relating to means for fixing a seat cover to a seat
Inventor: LOWE CHARLES BERTIE
IPC: A47C31/02
Filed: 1965-11-24
Abstract: 1,125,421. Securing upholstery. BOSTROM MFG. CO. Ltd. 22 Nov., 1966 [24 Nov. 1965], No. 49919/65. Heading A4M. [Also in Division E2] A seat cover 3 is folded over the rolled, peripheral lip 2 of a seat or back pan 1 and secured by spring steel clips 6. The clip 6 comprises an arcuate portion 9 which clamps the cover 3 within the lip 2 and a straight portion 7 comprising two spaced fingers 11. A central finger 12, inclined to the spaced fingers 11, engages a recess 13 in the pan 1 to lock the clip 6 in its cover retaining position. Barbs 17 are formed on the arcuate portion 9. The ends 14 of the spaced fingers 11 are optionally bent at a right angle to provide abutments for a clip fixing tool 15.
Patent GB-1418970-A (GB)
Title: Application of airflow and or pressure measuring and monitoring devices to sailing craft
IPC: G01L9/00
Filed: 1973-10-27
Abstract: 1418970 Sailing craft: Pressure gauge T C OBRIEN 27 Oct 1973 50112/73 Headings G1L G1N and G1R A sailing craft is provided with one or more devices for measuring the pressure on or the airflow around the sails. In Fig. 1, the sail C is provided with a diaphragm D which applies a force proportional to the differential pressure on the sail to a pressure sensitive transistor A, the differential pressure being shown on a voltmeter E. In Fig. 3, the pressures on both sides of the sail C are transmitted by pipes I, J, to a gimbal mounted inclined manometer L. In a modification of Fig. 3 Fig. 2, (not shown) the tubes I, J lead to opposite sides of a diaphragm D mounted in a wall dividing a chamber into two halves, the diaphragm D acting on a pressure sensitive transistor A as in Fig. 1. In Fig. 4, the device of Fig. 2 or Fig. 3 is modified to respond to the dynamic pressure of the air-flow across the sail. In a further embodiment, Fig. 5 (not shown), air-flow measuring devices are mounted on the spars or stays of a sailing boat.
Patent GB-1018167-A (GB)
Title: Improved speed control system
IPC: G11B15/54
Filed: 1963-12-19
Abstract: 1,018,167. Automatic speed control. AMPEX CORPORATION. Dec. 19,1963 [Jan. 11,1963], No. 50238/63. Heading G3R. A magnetic tape drives guide roller 16 coupled with timing wheel 41 having equally spaced teeth cut into the magnetic material forming the circumference of the wheel. Pick-up coil 43 is associated with amplifier 44 the alternating signals from which are used by blocking oscillator 45 to generate spiked pulses to indicate the passage of the teeth on wheel 41. A flip-flop 46 is adjusted by resistor 47 to produce an "on" pulse for half the time interval between the passage of successive teeth when the tape is travelling at a desired speed. The output voltage from low-pass filter 48 to the input of a driver amplifier is zero when the tape is moving at the selected speed, the armature current of driving motor 20 being set at an appropriate value. When the tape speed is too high, for example, a positive error signal is applied through resistor 52 to reduce the emitter voltage of transistor 53. This increases the emitterto-collector impedance of transistor 54 which reduces the base current of transistor 55, resulting in lower voltage being applied across the armature windings of the motor 20. An opposite form of operation takes place when the speed is too low, the motor 20 being controlled to maintain minimum error voltage. The separate timing wheel and pulse generator may be omitted when trigger pulses are recorded on the tape, these pulses being played back and compared to a selected standard. The play-back pulses may be passed to a narrow band filter selected for the appropriate speed, high-pass and low-pass filters determining whether the speed is high or low.
Patent GB-1448643-A (GB)
Title: Photosensitive materials
IPC: H05K3/00
Filed: 1974-11-20
Abstract: In order to produce photopolymerisable coatings, an epoxide prepolymer containing at least two epoxide groups per molecule is reacted with an alpha, beta-ethylenically unsaturated carboxylic acid, a photosensitiser is added to the reaction product, and the resultant composition is applied to a substrate. Simultaneously with or subsequently to the reaction of the epoxide, an addition reaction is carried out between the epoxide and a primary aromatic amine. A mixture of an optionally substituted anthraquinone and an organic halogen compound is added as photosensitiser to the reaction product.   These coatings can be used in a photolytic process for the production of printed circuits.
Patent GB-1394845-A (GB)
Title: Process for the preparation of penicillamine
IPC: C07D277/06
Filed: 1972-11-01
Abstract: 1394845 Process for penicillamine DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 1 Nov 1972 [15 Nov 1971] 50375/72 Addition to 1346198 Heading C2C The invention comprises a process for the preparation of penicillamine or a homologue thereof which comprises reacting an aliphatic aldehyde branched on the α-carbon atom with sulphur and ammonia to form a #<SP>3</SP>-thiazoline, converting the #<SP>3</SP>-thiazoline with anhydrous hydrogen cyanide into a thiazolidine-4-carbonitrile, hydrolysing the thiazolidine-4-carbonitrile into a salt of a thiazolidine-4-carbonamide by introducing it into aqueous hydrochloric acid containing at least 30% by weight of hydrogen chloride and heating to a temperature of from 40 to 70 C., converting the salt of a thiazolidine-4- carbonamide at a temperature above 80 C. into a salt of a thiazolidine-4-carboxylic acid and an ammonium salt, working up the mixture and separating off the ammonium salt followed by hydrolytic degradation of the thiazolidine-4- carboxylic acid to produce the penicillamine or its homologue.
Patent GB-1189143-A (GB)
Title: Compact Player for Magnetic Tape Cartridges
IPC: G11B5/48
Filed: 1967-04-05
Abstract: 1,189,143. Tape playback unit. LEAR JET INDUSTRIES Inc. 5 April, 1967 [5 April, 1966], No. 50394/69. Divided out of 1,189,142. Heading G5R. The description is included in Specification 1,189,142 but the claims relate to the construction of the cartridge tunnel.