baber/WOPTO huggingface dataset:
Patent GB-916492-A (GB)
Title: Improvements in pile carpets
Inventor: DOUTHWAITE COLIN FREDERICK BIR
IPC: D05C17/02
Filed: 1959-11-11
Abstract: Pile carpets are made by needling a pile yarn as a series of loops into a textile fabric backing consisting wholly or in part of cellulose acetate fibres and subjecting the backing to the controlled action of a liquid which is a swelling agent, placticizer or solvent for the cellulose acetate, the cellulose acetate fibres being thereby rendered adhesive so as to bond the pile to the backing.  The backing may be woven wholly from continuous filament cellulose acetate yarns, wholly or in part of yarns spun from a mixture of jute or other cellulose staple fibre with cellulose acetate staple fibre or in part of jute yarns and in part of continuous filament or staple fibre cellulose acetate yarns, e.g. a fabric woven from a warp of alternate jute and continuous filament cellulose acetate yarns and a weft of jute yarns and continuous cellulose acetate yarns woven either one and one or two and two.  The cellulose acetate content of the backing is preferably distributed so that no point in the fabric is more than a short distance, e.g. 1/2 inch, from an element of cellulose acetate fibre and the cellulose acetate of the backing fabric is preferably 1/4-5/8 of the total weight of the backing fabric. The pile may be yarn of natural or regenerated cellulose, wool or cellulose acetate fibres.  The pile yarn is preferably a continuous filament yarn which may be a singles yarn or double yarn and may have been rendered bulky by passage through a turbulent fluid zone.  Volatile swelling agents, e.g. acetone or mixtures of acetone with water, may subsequently be removed by evaporation.  The swelling agent may be one which renders the cellulose acetate adhesive only on heating and the carpet is heated after application of the swelling agent.  Alternatively the swelling agent may be or include a substance of low volatility which is a plasticizer for cellulose acetate and is left in the carpet to reduce any brittleness engendered by the swelling agent, e.g. a mixture of acetone water and plasticizer, e.g. dimethyl phthalate, trimonochlorethyl phosphate or triacetin.  Examples of swelling agents and plasticizers are 100% dimethylphthalate, 100% trimonochlorethyl phosphate, 100% triacetin, 80% acetone/20% triacetin, 80% acetone/20% dimethylphthalate, 80% acetone/20% trimonochlorethyl phosphate and 90% acetone/10% triacetin.  8% (based on the weight of the backing) of the swelling agent or plasticizer is preferably applied to carpets made wholly from cellulose acetate. The swelling agent, plasticizer or solvent may be applied by spraying or by passing the carpet over a roller or brush which dips into a trough.  Specification 732,929 is referred to.
Patent GB-825431-A (GB)
Title: Improvements relating to copper containing disazo dyestuffs of the stilbene series
IPC: C09B45/28
Filed: 1956-12-14
Abstract: The invention comprises copper complexes of dyestuffs of formul <FORM:0825431/IV(c)/1> where Ar is a naphthylene residue, which may be substituted by sulphonic acid groups, bound to the N atoms by adjacent carbon atoms, B is an acyl residue and R is CH3, C2H5 or CH2COOH.  They are made by coupling an appropriate diazotized aminoazo stilbene with a 2-acylamino-6-naphthol-8-sulphonic acid and coppering the product or by coupling a diazo compound of an amine of formula <FORM:0825431/IV(c)/2> with a 2-acylamino-6-naphthol-8-sulphonic acid, reducing the NO2 group to NH2 and, after diazotizing, coupling the disazo dyestuff with a naphthalenic end component which couples o to the NH2 group, oxidizing the product, and either simultaneously or subsequently coppering the triazole thus produced.  The acyl residue may be derived from a sulphonic or preferably a carboxylic or carbonic acid. The aminoazo stilbenes used in the first method are made by coupling diazotized 41-amino-4-[4,5-naphtho-1,2,3 - triazolyl - (2)] - stilbene - 2,21 - disulphonic acids with appropriate 2-alkoxynaphthylamine sulphonic acids.  Specified naphthylamine end components from which the triazole ring may be derived are 2-naphthylamine and its -1-, -5-, -6-, -7- and -8-mono- and -3,6-, -5,7- and -6,8-disulphonic acids and 1-naphthylamine-3- and -4-sulphonic acids.  Specified acetylaminonaphthols are 2-acetyl-, -carbomethoxy-, -sulphoacetyl-, -benzyl- and -m- and -p-aminobenzoyl-6-naphthol-8-sulphonic acids.  The alkali metal salts of the copper complexes are soluble in water and dye cellulosic material from a bath containing Glauber's salt in green shades. Examples are provided illustrating the preparation of the dyestuffs and their use in dyeing cotton and regenerated cellulose, the components used being chosen from those listed above with the addition of methyl- and chloromethyl-sulphonyl-, propionyl- and carboethoxy-amino as 2-acetylamino groups and the 2-alkoxynaphthylamine sulphonic acids used are 2-methoxy and methoxycarboxy-1-naphthylamine-6-sulphonic acids.  Specification 503,576, [Group IV], is referred to.
Patent GB-1043633-A (GB)
Title: Polymerisation of ethylene
Inventor: WHITELEY KENNETH STEPHENSON
IPC: C08F10/00
Filed: 1964-09-18
Abstract: Ethylene is polymerized at a pressure above 1700 kg./cm.2 in the presence of 10 to 25% of nitrogen, by moles of the total mixture. Preferred proportion is 12 to 20%, and chain transfer agents such as propylene, hydrogen, propane, ketones and vinyl acetate may also be present.  The products may be compounded with convention ingredients and used for making films, mouldings and coatings.  In an example, ethylene is polymerized in a two-zone autoclave at 180 DEG  and 260 DEG  C. in the presence of nitrogen and propylene.
Patent GB-1242747-A (GB)
Title: Eddy current testing
Inventor: UPTON VICTOR JOHN GEORGE
IPC: G01N27/90
Filed: 1968-08-09
Abstract: 1,242,747. Eddy current flaw detectors. C. N. S. INSTRUMENTS Ltd. Aug.9, 1968, No.38277/68. Heading G1N. Flaws are detected by applying a carrier frequency current to a test coil, subjecting the material to be tested to the magnetic field of the coil, arranging that changes in the phase angle of the coil give rise to amplitude modulation of the carrier frequency current and detecting the amplitude modulation by a rectifier provided with a by-pass capacitor for the carrier frequency. Two test coils may be provided; the second co-operating with a standard or with an adjacent area of the test material. As shown in Fig.1, two test coils 1, 2 are connected in parallel with capacitors to form respective tuned circuits, the carrier frequency generated at 5 coinciding with the steepest part of the resonance curve. Alternatively, series tuned circuits may be used. Respective rectifiers 13, 14 and by-pass capacitors 8, 9 are provided. As shown in Fig. 3, two test coils 1, 2 are inductively coupled to a primary coil 18 and are fed with a quadrature signal via line 19.
Patent GB-356064-A (GB)
Title: Improvements in articulated locomotives
IPC: B61C1/02
Filed: 1930-12-19
Abstract: 356,064. Locomotive frames. BEYER PEACOCK & CO., Ltd., Gorton, Manchester, and JACKSON, S., 260, Bramhall Lane, Stockport, Cheshire. Dec. 19, 1930, No. 38305. [Class 79 (i).] The framework B of the middle or boiler unit A of an articulated locomotive comprises side and end members and pivot centres C all made as one casting. The casting may also comprise cross stays D, boiler and firebox supports E, steam or water pipes F, and air reservoirs. Auxiliary platework may be used for side and drivers' platforms &c.
Patent GB-944936-A (GB)
Title: Sintered, aluminous abrasive
Inventor: COWAN JOHN GALLOWAY
IPC: C09K3/14
Filed: 1960-11-11
Abstract: Aluminous abrasive bodies are prepared by wet grinding pure alumina with selected sintering agents to a particle size of less than 5 microns, drying the ground slip to a moisture content of not more than 10%, sieving and compacting at a pressure of up to 5 tons p.s.i., granulating to the required grain size and sintering at 1350-1550 DEG  C. for up to two hours. The surplus fines from the granulating stage may be incorporated into the ground slip either prior to, or after drying.  Alternatively, the pressed compact may be pre-sintered at 500-1400 DEG  C., crushed to a particle size of 0.1-1.0 mm., and incorporated into the ground slip as above. The sintering agents, which are silica, titania, magnesia, calcia, iron oxides, manganese oxides, cuprous oxide and sodium oxide, may be incorporated as such or in combination as clays, red mud or ilmenite for example up to a maximum of 20%.
Patent GB-1531144-A (GB)
Title: Fluid pressure sensing apparatus
IPC: G01P5/16
Filed: 1976-09-21
Abstract: 1531144 Measuring fluid-flow CAMBRIDGE FILTER CORP 21 Sept 1976 [18 March 1976] 39068/76 Heading G1R Flow measuring apparatus comprises an array of total pressure sensing tubes 14 in a duct 10, each surrounded by a straightener tube 26 and connected to a manifold 16. Static pressure is measured by tubes 18 connected to openings 27 in the straightener tubes, and to manifolds 20. The tubes 18 also support the straightener tubes 26. Perforated sensing tubes 28, 30 extend through each manifold and are connected to an inclined manometer to indicate the difference between total and static pressure.
Patent GB-1166695-A (GB)
Title: D.C. Motor Speed Control Systems
IPC: H02P7/29
Filed: 1967-08-24
Abstract: 1,166,695. Control of D.C. motors. GENERAL DYNAMICS CORP. 24 Aug, 1967 [2 Sept., 1966], No. 39113/67. Heading H2J. In a system in which a D.C. motor 16 is energized from a D.C. source 19 via a thyristor 20 which is turned off by a capacitor 30 when a second thyristor 28 conducts, the first thyristor 20 is triggered at a fixed frequency and, the motor speed is varied by adjustment of the time when the second thyristor 28 is triggered. The circuit for triggering commutating thyristor 28 comprises a capacitor 63 which is charged with positive potential from battery 19 through the thyristor 20 while it is conducting, the potential being kept constant by Zener diode 66 and the charging rate adjusted by speed control rheostat 64. When the charge on 63 is sufficient, unijunction transistor 62 conducts to produce a triggering pulse through transformer 58. As shown, the first thyristor 20 is triggered from a transistor oscillator 44, 45, whose output transformer 47 also supplies a rectifier bridge 40 by which the commutating capacitor 30 is charged, again through the thyristor 20 while it is conducting. This arrangement ensures correct commutation regardless of which thyristor is triggered first. Thyristor 28 is turned off when 20 is again triggered on by capacitor 30, which has been charged from battery 19 via thyristor 28; when 20 conducts this charge is reversed by resonance of the circuit 30, 20, 40 and choke 32, thus turning off 28. The transformer 47 is saturable so that if the thyristor 28 should fail to switch off the oscillator 44, 45 stops. A switch 34 is opened when continuous conduction of 20 is required for full speed, and a switch 24 provides for de-energizing the motor. In an alternative arrangement, (Fig. 3, not shown), the oscillator is replaced by an A.C. source which supplies the rectifiers 40 via a current limiting transformer. The A.C. source also powers a conventional unijunction transistor pulse generator for providing the triggering pulses to thyristor 20.
Patent GB-1273796-A (GB)
Title: Photographic camera
IPC: G03B9/08
Filed: 1969-08-05
Abstract: 1,273,796. Panoramic cameras. E. W. E. MICKLETHWAIT (HYCON MFG CO.) Aug. 5, 1969, No.39171/69. Heading G2A. A panoramic camera has a rotatable lens 12 which scans an image across a film strip 26 positioned along a cylindrical focal surface by a pair of platen rails 10, 11 which engage the film along the edges only; a shutter is formed by a slit in an endless curtain 24, which moves so that the slit traverses across the picture format area 38 in synchronism with the lens. The film strip winds across from a supply spool 28 to a take-up spool 36, and passes over the convex sides of the rails 10, 11, which bear against the edges only of the film, so as to avoid scratching the format area. The rails are semicircular and disposed in the focal surface of the lens. They may be coated with a friction-resistant material. A format mask 40 is placed in front of the film path so as to define the format area 38, and may have a smaller cut-out portion towards one side, for oblique angle photography. The sprockets 42, 44 which transport the curtain 24 are driven in synchronism with the rotation of the lens by the mechanism of Fig. 5 (not shown). The same mechanism is linked with an intermittent drive for the film, so that this is transported only between exposure periods. Fig. 8 (not shown) is a mechanism for image motion compensation when the camera is operated from a moving aircraft. Movement of the lens housing (14) is transmitted to a cylinder (152) bearing a cam surface (162) which runs between a pair of bearings (160), and which causes the camera to pivot. The shape of the cam is designed so that the camera pivots according to the amount of compensation required for the aircraft's velocity and altitude.
Patent GB-1396339-A (GB)
Title: Chemically modified polymers
IPC: C08F8/00
Filed: 1972-08-23
Abstract: 1396339 Laminates OWENS-ILLINOIS Inc 23 Aug 1972 [23 Aug 1971] 39269/72 Heading B5N [Also in Division C3] Glass slides may be laminated by interposing therebetween films of a polyethylene modified by reacting with a compound having a hydrocarbon residue and a highly polar functional group in the presence of a free radical generator, and hot pressing the resulting sandwich. In Example II glass slides are laminated with a reaction product of polyethylene and stearic acid in the presence of dicumyl peroxide.
Patent GB-1097142-A (GB)
Title: Apparatus for use in monitoring the relative positions of spaced objects
Inventor: CHARETTE HAROLD VICTOR
IPC: G01B11/04
Filed: 1964-01-31
Abstract: 1,097,142. Photo-electric monitoring of spaced objects. WILLIAM EWART & SON Ltd. Jan. 18, 1965 [Jan. 31, 1964], No.39321/63. Heading G1A. Apparatus for monitoring the relative positions of spaced objects e. g. the edges of a length of cloth, comprises a pair of synchronized mechanical scanning heads, each including a photo-sensor with a relatively small field of view compared with the field to be scanned, producing signals when either object enters or leaves field of view of the respective head. A scanning head (Fig. 2) is mounted in each end of a casing (12, Fig. 1, not shown) suspended transversely across and above the moving sheet of cloth, and each comprises a rotatable disc 19 mounted at the end of a tube 18. An image of the illuminated edge of the cloth is formed on the surface of the disc 19 by means of lens 17, light reaching the latter through a window 15 and by reflection from mirror 16. The disc has an aperture 21, fitted with a double prism 22 and at whose end is situated a photo-cell 25, such that rotation of the disc, by means of a motor 34 during a shaft 31 engaging peripheral gear teeth 29, causes the effective scanning by the photo-cell of the image formed on the disc surface, the aperture 21 alternately passing through brightly lit and darker zones. Each head is mounted on a carriage movable on rails 35 such that the distance apart of the two heads can be adjusted. The apertures of the discs in the two heads are arranged to be 180‹ out of phase Fig. 3 (not shown) so that in general one is illuminated while the other is in a dark zone. The outputs of the detectors, which are photo-transistors, are passed through separate channels, each comprising an amplifier (40) and Schmidt trigger (41, Fig. 4, not shown), the latter producing an output in the form of a sharply defined square wave. The outputs from the triggers are fed to a bi-stable switch (42) which operates only in response to a positive change in signal, whether from either channel. A gate (43) then receives signals from the switch (42) and from one of the triggers, but of opposite polarity to that applied to the switch (42), and combines them for passage to an indicator (44). Graphs are given Fig. 5 (not shown) indicating the outputs of the various circuit units for examples in which either the cloth is of normal width and correctly aligned beneath the scanning heads, or it is too broad or too narrow or displaced to either side of the scanning arrangement &c. The final output (from the gate 43) indicates normal width (no output being obtained, even if the cloth is displaced sideways), and deviations from the normal (a positive pulse, of length proportional to the deviation, if the cloth is too broad, a negative one, if too narrow). The operator reading the meter may vary the tension of the cloth in order to reduce the reading as near as possible to zero, or automatic adjustment control may be provided. The scanning unit may be sealed, and heated to prevent condensation.
Patent GB-886184-A (GB)
Title: New pyrazolo-pyrimidines substituted in the pyrazole nucleus, and process for their manufacture
Filed: 1958-12-05
Abstract: The invention comprises pyrazolo-pyrimidines of the formula <FORM:0886184/IV (b)/1> wherein R1 is an amino group which may optionally bear one or two aliphatic substituents of 1-6 carbon atoms, e.g. amino, dimethylamino, diethylamino, dipropylamino, morpholino, piperidino, pyrrolidino or piperazino, and salts thereof with such acids as hydrohalic, sulphuric, phosphoric, nitric, perchloric and aliphatic, alicyclic, aromatic or heterocyclic carboxylic and sulphonic acids.  The compounds are prepared by reacting a 2-R1-4-halo-5-cyano-pyrimidine with hydrazine or hydrazine hydrate.ALSO:Pharmaceutical preparations having tumour-inhibiting, diuretic, coronary-dilating, central nervous system-inhibiting and anti-rheumatic activity comprise pyrazolo-pyrimidines of the formula <FORM:0886184/VI/1> wherein R1 is an amino group which may optionally bear one or two aliphatic substituents of 1-6 carbon atoms, e.g. amino, dimethylamino, diethylamino, dipropylamino, morpholino, piperidino, pyrrolidino or piperazino, or a salt thereof (see Group IV (b)) in admixture or conjunction with a pharmaceutical carrier. The preparations suitably take the form of tablets, dragees, solutions, suspensions or emulsions and contain organic or inorganic carriers suitable for enteral, parenteral or topical application. Specified salts are hydrohalides, sulphates, phosphates, nitrate, perchlorates, formates, acetates, propionates, oxalates, succinates, glycollates, lactates, malates, tartrates, citrates, ascorbates, mono- and di-hydroxymaleates, pyruvates, benzoates, phenylacetates, p-aminobenzoates, anthranilates, p-hydroxybenzoates, salicylates, p - aminosalicylates, methane -, ethane -, hydroxyethane -, ethylene -, toluene - and naphthalene-sulphonates, sulphanilates, and salts with methionine, tryptophane, lysine and arginine.
Patent GB-920588-A (GB)
Title: A combined catamaran and vehicle roof rack
Inventor: JAMES RAYMOND FREDERICK
IPC: B60R9/08
Filed: 1960-11-16
Abstract: 920,588. Luggage carriers for vehicles. AVON INDIA RUBBER CO. Ltd. Nov. 8, 1961 [Nov. 16, 1960], No. 39394/60. Class 103(2). [Also in Group XXXIII] A combined catamaran and vehicle roof-rack comprises a pair of hulls A, e.g. of flexible rubberised canvas, so as to be inflatable, or wood or fibre-glass reinforced plastic, generally of tubular shape, and a rigid frame B constituting a deck for the hulls or an independent roof-rack. The frame B is provided with opposite handed projections H, H<SP>1</SP> which co-operate with rubber tubes C on a flexible hull A to positively secure the hulls to the rack when they are inflated, straps may also be used for additional security. When used as a roof-rack the projections H<SP>1</SP> are provided with feet and the vehicle is secured to the vehicle by means known per se. The rack may be used to transport the rigid type of hulls on land.
Patent GB-1478703-A (GB)
Title: Control of developer solution concentration
IPC: G03D3/06
Filed: 1974-09-10
Abstract: 1478703 Controlling developer concentration OCE-VAN DER GRINTEN N V 10 Sept 1974 [10 Sept 1973] 39497/74 Heading G2X In a method of controlling concentration of diazotype developer liquid in a receptacle in development apparatus, the liquid consisting essentially of azo-coupling component, electrolyte and solvent, on decrease in developer liquid level, solvent of lower specific gravity than that of the developer liquid is added to the developer liquid, a hydrometer reacts to the resulting decrease in the specific gravity of the developer liquid, and azocoupling component, e.g. in the form of a concentrated solution of coupling component and electrolyte, is then added to the developer liquid until the desired concentration has been reached as indicated by the return of the hydrometer to a predetermined position. Developer liquid is transported by pump 6 from section 5 of the developer reservoir 2 via pipe 12 to the developing device 1. As developer is consumed the developer level in reservoir is maintained by influx of solvent from the reservoir 18, controlled by closing valve 19. Resulting fall in developer concentration causes sinking of hydrometer 26 allowing thickening 28 on the hydrometer stem to come into contact with reciprocating bar 32, operated by an eccentrically mounted pivot 41 on pulley 42. Lever 35 tilts to the right and attached spoon 36 takes the position shown in dotted lines. By movement of 35 and 36 between their extreme positions concentrated developer liquid is spooned from the reservoir 29 into the central section 3 of the supply reservoir. The level in 29 is maintained by supply bottle 30 containing developer liquid at an azo component concentration several times higher than that required for development. An alter-  native replenishment method includes concentrate in a supply bottle with plastic walls and an outlet nozzle. The wall is pressed by action of the reciprocating bar on the thickening 28 in the lower position of the hydrometer causing concentrate to be ejected through the nozzle into the reservoir.
Patent GB-1142547-A (GB)
Title: A two-material spray gun
IPC: B05B7/04
Filed: 1967-08-30
Abstract: 1,142,547. Spray-producers. WALD INDUSTRIES, Inc. 30 Aug., 1967 [27 April, 1967], No. 39604/67. Heading B2F. Apparatus capable of spraying a mixture of two paints or either of the two paints separately comprises a body 11 provided with two mutually inclined faces 25, 26 and a surface supporting a paint discharge nozzle 12 and an air cap 13, and paint supply means located on each face, each of said supply means being pneumatically controlled. Paint of a first colour is supplied through a conduit 32 to a body 31 and its passage to the nozzle 12 through an orifice 29 is controlled by a needle-type valve 34 secured to the stem of a piston 37. The pressure of the air acting on the piston is controlled upstream of a conduit 39. A knob 42 may be rotated to adjust the piston travel. Paint of a second colour enters a body 31' and its flow is similarly controlled. The cap 13 terminates in a cap 14 having an elongated discharge opening and is surrounded by a shroud 17. The apparatus may be cleaned by introducing a solvent into the air supply conduits.