baber/WOPTO huggingface dataset:
Patent GB-1515325-A (GB)
Title: Method and apparatus for applying patterns to objects
IPC: B41M1/40
Filed: 1975-08-11
Abstract: 1515325 Transfer printing KOBAYASHI KK 11 Aug 1975 [12 Aug 1974] 33427/75 Heading B6C A transfer apparatus comprises a printing means 1 for putting a pattern on a thin film 2, a film cutting apparatus 3 and means 42 for lowering the cut film into a bath 51 where an object is lowered on to the film to receive the pattern, which is transferred by means of liquid pressure. The film is removed in a film removing device. The printing means 1 has a plate cylinder 11 and inking roller 12 and the film 2 is moved by seizing means 31, run on conveyer 33. Suctions means 42 hold the cut film and lower it into bath 51 and then the bath 51 is transported to a submerging means which lowers the object into it. The film 2 is removed from the object by dissolving or by heating, cooling, and/or peeling in the film removing apparatus. A transparent cover may be applied to the transfer. Materials for the film 2 and the removing liquid are given. Microswitches control the speed of seizing means 31 by monitoring the tautness of film 2.
Patent GB-795784-A (GB)
Title: Photographic film base
IPC: C08G63/181
Filed: 1955-11-24
Abstract: A photographic film has a base or support of a random ethylene terephthalate-ethylene isophthalate copolyester containing 80 to 60 per cent of ethylene terephthalate units and correspondingly from 20 to 40 per cent of ethylene isophthalate units.  The copolyester is made by the process of Specification 766,290.  The film base may be made from the copolyester by extrusion through a slot or orifice, followed by stretching or cold rolling, or by extrusion in the form of a tube followed by stretching or by a casting technique.  The film may be spliced by softening the ends with a solvent (e.g. trichloroethane, tetrachloroethane or dioxane), superimposing the softened ends and allowing them to dry.
Patent GB-362621-A (GB)
Title: Improvements in submerged pumps
IPC: F04D13/08
Filed: 1930-11-10
Abstract: 362,621. Rotary pumps. WERNERT, K., 2A, Weissenburgerstrasse, Mulheim, Ruhr, Germany. Nov. 10, 1930, No. 33784. [Class 110 (i).] In a submersible pump, the electric motor 2 is arranged above the pump 1 and an air space 4 is provided between them and is connected by a port 7 to the liquid in the bore-hole. The annular space between the casings 3 and 5 serves as the pump delivery and aids to cool the motor and prevent escape of air from the space 4. An annulus 8 prevents leakage of liquid along the pump shaft.
Patent GB-779765-A (GB)
Title: Improvements in bearings and housings therefor
Inventor: WALKER WILLIAM HENRY
IPC: F16C35/067
Filed: 1954-11-23
Abstract: 779,765. Circlips &c. WALKER & SCHOFIELD, Ltd. Nov. 22, 1955 [Nov. 23, 1954], No. 33844/54. Class 89 (2). [Also in Groups XXII and XXXIV] A method of securing the outer race A of a bearing in a housing B provided with a circumferential groove b<SP>2</SP>, comprises the application of a truncated, conical, continuous-ring C to the surface of the bearing, deforming and forcing the ring into the groove b<SP>2</SP>, and pressing the ring flat therein. A bearing may be retained by two such rings C, one each side thereof.
Patent GB-342734-A (GB)
Title: Devices for automatically regulating temperature
IPC: H03L1/04
Filed: 1929-11-06
Abstract: 342,734. Thermostats. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Tournior, M. C. ; 46, Avenue de Breteuil, Paris.) Nov. 6, 1929, No. 33853. [Class 64 (ii).] A mirror device sensitive to temperature changes controls a beam of light directed upon a lightsensitive cell, and the output of the cell is amplified by a thermionic device and fed back to a heating device. A box A, which may contain a piezoelectric device, is provided with a heating coil H, and a temperature-sensitive resistance B which is placed in the circuit of a Wheatstone bridge W. The mirror m of a galvanometer G reflects a portion of the triangular beam of light provided by a lamp C and diaphragm D on to a photo-electric cell P. A thermionic amplifier V1, V2, V3 is provided, and the coil H is heated by the current from the amplifier. The Wheatstone bridge may be replaced by a bimetallic spiral S, Fig. 2, carrying the mirror m, or by a reservoir R, Fig. 3, containing liquid the expansion of which deforms a flattened tube T and thus rotates the mirror. In another alternative a mercury thermometer may be used having a flattened tube adapted to reflect light on to the photo-electric cell. The beam of light may be modulated by using an alternating current for the lamp C, or by a rotating slotted disc K.
Patent GB-1273447-A (GB)
Title: Improvements in flexible films of thermoplastics resin
Inventor: GLATTI FLAVIANO
IPC: A01G9/14
Filed: 1969-07-07
Abstract: 1,273,447. Flexible dyed thermoplastics film. MONTECATINI EDISON S.p.A. 7 July, 1969 [5 July, 1968], No. 34085/69. Heading B5B. [Also in Divisions A1 and C3] A flexible dyed film of a thermoplastics resin which has a thickness of from 0.01 to 0.5 mm., and a total transmittance of from 0 to 10% for sunlight with a wavelength between 300 and 500 mÁ, from 0 to 35% for sunlight with a wavelength between 500 and 750 mÁ, from 0 to 90 % for sunlight with a wavelength between 750 mÁ and 900 mÁ, and from 60 to 90% for sunlight with a wavelength between 900 and 1500 mÁ may be made from a composition comprising 100 parts by weight of one or more thermoplastics polymeric resin readily transformable into films, 0.5 to 10 parts by weight of a heat and light stabilizing composition; 0 to 30 parts by weight of a heat and light costabilizing composition; 0 to 2 by weight of a compound capable of absorbing ultraviolet radiation, optionally in combination with a blueing agent, an optical bleaching agent or, antioxidant, 0 to 100 parts by weight of a plasticizing composition and optionally an antioxidant, 0 to 5 parts by weight of a lubricating composition; 0 to 100 parts by weight of an inert powder filler other than carbon black and 0.00001 to 10 parts by weight of one or more dyes of such a type as to confer to the film of thermoplastics resin the required absorption spectra. The thermoplastics resin may be one or more of polyvinyl chloride, polyethylene, polypropylene, polymethyl methacrylate, ethylene-vinyl acetate copolymers or a polyamide. Examples of suitable dyes are in the case of yellow dyes, synthetic azodyes derived from acetylacetoarylide and pyrazolone, for red dyes, azo dyes having a high molecular weight and derived from pyrazolone, for violet dyes, synthetic vat dyes derived from thioindigo and for blue and green dyes, synthetic dyes derived from phthalocyanine and from chlorinated phthalogamines. The film of the invention may be used for mulching plants when it prevents formation of weeds, minimized evaporation of water, improves the thermal conditions in the soil, thus resulting in improved crop production.
Patent GB-521622-A (GB)
Title: Improvements in means for connecting hose pipes to taps
IPC: F16L37/48
Filed: 1938-11-23
Abstract: 521,622. Pipe couplings. NEWTON SALES CO., Ltd., and WILLCOX, A. L. Nov. 23, 1938, No. 34091. [Class 99 (i)] Means for coupling a hose pipe to a tap comprise a metal tubular member 11, the slotted larger end of which contains a rubber sleeve 12 which is compressed on to a tap bv the bandclip 13. The hose is secured on the smaller end 16 of the member 11 by claws 14. In a modification the tube 19, Fig. 3, extends partly into the rubber sleeve 18, the sleeve and hose being secured to the tube by claws 20, 21 respectively.
Patent GB-879964-A (GB)
Title: Process for the purification of ketene
Filed: 1958-10-24
Abstract: A process for the purification of ketene which has been obtained by the thermal splitting of acetic acid under reduced pressure in the presence of a catalyst and from which the greater part of the water and acetic acid has been removed by cooling comprises bringing the impure ketene into contact with liquid hexachlorobutadiene or a liquid aliphatic ether boiling above 130 DEG C. whereby the impurities are removed in the liquid and the gaseous ketene passes on.  Temperatures of about 20-85 DEG C. are preferred.  Specified ethers are di-n-hexyl, di-(1-ethylbutyl) and di-(1-ethylhexyl) ethers.  The extracted impurities may be removed from the liquid solvent by cooling and the solvent recycled.  The contacting process may be effected in the vacuum pump, e.g. a liquid ring pump, used to produce the reduced pressure for the thermal splitting.
Patent GB-969590-A (GB)
Title: Glass cutters and combination tools
IPC: C03B33/12
Filed: 1962-09-06
Abstract: <PICT:0969590/C1/1> A glass cutter comprises a handle 1 with a slot 2 to receive a glass cutting wheel 3 which is mounted on an axle 4 forming part of a spring clip 5.  The clip 5 is mounted in a recess 8 either permanently or as shown, by a bent-in part 7. Both parts 4 and 7 are bent greater than 90 degrees to hold the wheel 3 to the handle 1 firmly.  Recesses 9 behind the clip 5 hold spare cutting wheels. A glass trimming slot 10 (not shown) may be provided in the handle edge. Also mounted in the handle are a penknife 15 and knife or scissor blade sharpeners 22.
Patent GB-901606-A (GB)
Title: Improvements in or relating to reels or spools
IPC: B65H75/20
Filed: 1957-11-02
Abstract: 901,606. Reels. DAVIDSON, A. D. Nov. 3, 1958 [Nov. 2, 1957], No. 34258/57. Class 99(2). A hose reel comprises circular sides 1, 2, secured in parallel relationship by transverse struts 3, 4, 5, 6, which are arranged to provide a skeleton hub, one end of each strut being pivoted to one of said sides and its opposite end being detachably connected to the other side. Alternate struts on each side pivot on rivets 18 whilst the opposite end of each strut, which canbe slotted to facilitate release, is secured by nuts and bolts 16, 17. A hose end anchor hook 22 is provided on a metal strap attached to the strut 4. The frames 23 are braced by similar pivoted struts 29, 30 and the reel is rotatably mounted on an axle 13. When dismantled the struts 3, 4, 5, 6, 29, 30 can be pivoted to lie within the sides 1, 2 or frames 23 respectively, to facilitate packing. A winding handle may be detachably secured to one end of the axle.
Patent GB-913602-A (GB)
Title: A new alkaloid, its derivatives and a process for the preparation thereof
Inventor: MEN JEAN LE
IPC: C07J7/00
Filed: 1959-10-09
Abstract: The invention comprises a steroidal alkaloid, paravallarine, (20S) - 3b  - N-methylamino-20-hydroxy-18-oic lactone (-->20)-pregna-5-ene, and its derivatives, all of the general formula:-  <FORM:0913602/IV (b)/1> (wherein X represents an =O radical or two hydrogen atoms, R represents a hydrogen atom, a methyl radical or an acetyl radical, R1 represents a hydrogen atom or a methyl radical and, when X represents two hydrogen atoms may also represent an acetyl radical, R2 represents a hydroxy or acetoxyl radical, or together with R1 represents a direct bond to complete a 5-membered ring system when X represents =O and each Y represents a hydrogen atom (forming 5a -pregnanes) or together represent a double bond) and also their quaternary salts, together with a process for the preparation of paravallarine by crushing parts of the plant Paravallaris microphylla Pitard, treating the powder obtained with an alkaline agent at pH >7, extracting the product with an organic solvent which is immiscible with water (other than a higher alcohol), lowering the pH of the extract below 7 to re-establish an aqueous acid phase and treating the said phase with an alkaline agent to raise the pH above 7 and thus precipitate the alkaloid, which may then be purified, e.g. by extraction with an organic solvent, chromatography on alumina and elution with a more polar solvent.  Alternatively, the alkaloid may be isolated in the form of a salt by treatment of an organic solvent extract with an acid.  Hydrogenation of paravallarine in the presence of a platinum or palladium catalyst yields the 5a -dihydro derivative.  Detailed examples illustrate the invention and the preparation of N-methyl- and N-acetylpallavallarine, pallavallarine hydrochloride, paravallarinol and its triacetate, N-acetylpallavallaric acid and its methyl ester.
Patent GB-1430240-A (GB)
Title: Mine roof support
IPC: E21D23/00
Filed: 1972-07-22
Abstract: 1430240 Advancing mine roof support systems DOWTY MINING EQUIPMENT Ltd 9 July 1973 [22 July 1972] 34393/72 Heading E1P [Also in Division F1] In a mine roof support frame comprising a series of hydraulic props mechanically secured to-gether, each prop is provided with relief valve means controlling the escape of fluid from its working chamber to atmosphere. The valve arrangement is such that the frame can yield both under slow and rapid conditions as determined by use and/or valve and prop details Figs. 3 and 4, (not shown) and Heading F1D should be referred to. The control circuit for the frame 1, 2 comprises a rotary valve 51 incorporating a manually operated pressure control valve 65, the valve 51 having four outlets 54, 57, 58, 59 therefrom and three inlets 61, 62, 64 thereto. The outlets 54, 58 communicate respectively with the working chambers 67, 68 of the advancing jack 11 whilst the outlets 57, 59 communicate respectively with pilot operated valves 52, 53 and non-return valves 69, 71 arranged in the lines 55, 56 to the frame 1, 2 as shown. For modus operandi the Specification should be referred to.
Patent GB-1500153-A (GB)
Title: Method and apparatus for precipitating particles from a gaseous effluent
IPC: B03C3/38
Filed: 1975-08-20
Abstract: The process and the appliance are used to remove dust particles from gaseous media by first generating, by means of a thermionic ion emitter (30), positively charged ions from the  beta -phase of Li2O.Al2O3.2SiO2 (eukryptite) and then accelerating said ions in a strong electric field. The ion source (30), which is heated to approximately 800 DEG C to achieve adequate ion emission, in this arrangement is independent of the source of the electric field. Heating of the ion emitter material is effected either via an external power source (33) or, in the case of hot exhaust gases, by the latter. The accelerated and drifting ions reach the dust particles, adhere thereto and thus charge them. The charged particles are forced by the electric field against the oppositely charged electrode (22) where they adhere and can be collected. <IMAGE>
Patent GB-492370-A (GB)
Title: Process of and apparatus for the manufacture of films, foils, bands and the like from cellulose solutions
IPC: B29D7/01
Filed: 1936-12-17
Abstract: <PICT:0492370/IV/1> Films, foils, membranes, bands, and the like are obtained from a cuprammonium solution of cellulose by pouring the solution on to a support moving through a coagulating bath, subjecting the layer of solution to partial coagulation, detaching it entirely from the support and completing the coagulation in a second bath containing a coagulating fluid of similar nature to, but preferably of lower concentration than, that in the first bath. Cuprammonium solutions having a high ammonia content may be used, and removal of the bulk of the ammonia may be effected after the film is detached from the forming surface.  In an example, a cuprammonium cellulose solution is spread by a slot nozzle or other spreading device a, on to a drum or belt b, and the layer of solution passes into a solution of caustic soda.  The film, superficially coagulated, is removed from the support b and passed to a belt d. It is then led into a bath f containing a more dilute caustic soda solution where coagulation is completed.  The film then passes into a bath g of dilute sulphuric acid.  During the travel of the film on the belt d and from thence to the bath f considerable quantities of ammonia are removed.  The film may be subjected to stretching when it is detached from the support b.  A take-up drum may be used instead of belt d. The Specification as open to inspection under Sect. 91 comprises also the production of films wherein coagulation, consolidation, and finishing treatments are carried out while the film is still on the support.  The treatment liquids may be applied by spraying or sprinkling, or by means of laying-on rollers.  The support may be a belt having more than two guide drums and some of these may be mounted in and some above the precipitating and treating baths. The support may be of non-corrosive material.  The drives for the drums or belts may be provided with differential gearing enabling compensation to be made for changes in the shrinkage of the film during the various treatments.  The cellulosic films may be dried by first heating in an atmosphere saturated with vapour, and then while keeping the temperature constant, allowing the vapour content of the drying air to fall.  In this manner, drying of the film proceeds from inside to outside.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1072436-A (GB)
Title: Improvements in or relating to techniques for examining the internal structure of a specimen
Inventor: AVEYARD SYDNEY
IPC: G01N27/02
Filed: 1963-09-04
Abstract: 1,072,436. Detecting flaws in electrically conducting material. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 4, 1964 [Sept. 4, 1963], No. 35022/63. Heading G1N. In an arrangement in which the specimen 1 is scanned by a coil 2 carrying a high frequency, a derived output signal is supplied to a facsimile recorder 15 which produces a representation of the internal structure of the specimen. The coil 2 is included in the grid circuit of an oscillator 6 and variations of the resistivity of the material modify the amplitude of the oscillations. The oscillations are detected in a circuit 9 and fed via a differentiating capacitor 10, chopper amplifier 12, 13 and rectifier 14 to the helical electrode 16 of a spark recorder rotated in synchronism with rotation of the sample and the instantaneously opposed parts of the electrodes 16, 19 draw lines on the moving paper 18, the intensity of points on the line being proportional to the detected signal strength so that the lines which may have a density of 80 to the inch produce the desired representation. Application of the invention to the testing of nuclear reactor fuel elements comprising an outer stainless steel tube, an inner sodium tube and fuel pellets is described. The coil may be embedded in a ferrite former.
Patent GB-733999-A (GB)
Title: Improvements in or relating to methods for removing obstructions in pneumatic conveyor pipes
IPC: B65G53/66
Filed: 1953-12-16
Abstract: 733,999. Pnematic conveyers. BUHLER, GEB. Dec. 16, 1953 [Dec. 16, 1952], No. 35039/53. Class 78 (1). When an obstruction occurs in the conveyer pipe 1, Fig. 1, the material accumulates above the point of admission 2 and closes the valve 3 through which conveying air is admitted, whereupon the valve 5 opens automatically owing to the reduction of pressure in the pipe and air is admitted to suck upwardly the obstruction. When the obstruction has been removed, the valve 5 closes and the valve 3 opens. The valves 3, 5 are loaded by weights or springs. In a modification material passes into the pipe 1, Fig. 2, from a storage container 8 through a hopper 7. The stem of a valve 10 is connected to a diaphragm 11 which divides a chamber 12 into two parts communicating with the pipe 1 by pipes 13, 14. When the normal pressure difference between the points of connection of the pipes 13, 14 with the pipe 1 is exceeded, the valve 10 is opened to admit air and remains open until the obstruction is removed.
Patent GB-1185536-A (GB)
Title: Gain Control Circuit
IPC: H03G1/00
Filed: 1967-07-31
Abstract: 1,185,536. Automatic volume control. INTERNATIONAL BUSINESS MACHINES CORP. 31 July, 1967 [1 Aug., 1966], No. 35058/67. Heading H4R. A gain control circuit, for use in stabilizing the output of a phase shift feedback oscillator, comprises a series resistor 27, Fig. 2, feeding an output terminal 26 with a variable shunt impedance comprising a diode 45 and the emitter collector path of a transistor 42, whose impedances are varied by varying the D.C. flowing therethrough, the diode and transistor being in series for D.C. but in parallel with respect to the A.C. signal path. The control signal to vary the current flowing through transistor 42 is derived from an A.C. signal applied to terminal 24. Transistor 32 is normally saturated with no input to terminal 24. As the signal level at 24 increases, signal peaks cause transistor 32 to cut off for a time dependent on the signal level so that pulses of current flow through diode 38 to charge capacitor 39. The pulses are integrated in capacitor 39 to provide a D.C. signal on the base of transistor 42 to control the D.C. flowing therethrough and therefore the impedance of diode 45 and transistor 42 to increase the attenuation of the circuit. The gain control circuit is connected in a phase shift oscillator as shown in Fig. 1, with the gain control signal derived from the output of the oscillator to tend to maintain the output amplitude constant irrespective of change of frequency produced by variation of resistor 10.
Patent GB-343171-A (GB)
Title: Improvements in and relating to sound-translating devices such as telephone transmitters or microphones
IPC: H04R19/04
Filed: 1929-11-16
Abstract: 343,171. Microphones. WILLANS, P. W., 7, Ormonde Mansions. Southampton Row, London, and MILLINGTON, G., Kittiflag, Ballards Way, South Croydon. Nov. 16, 1929, No. 35114. [Class 40 (iv).] A sound translating device such as a microphone, more particularly of the electrostatic type, comprising a vibrating body, such as a diaphragm, is formed with a sound passage adjacent to the front of the diaphragm which communicates with a cavity of large dimensions compared with those of the sound passage, also positioned in front of the diaphragm. As shown, a stop member d having a relatively small aperture c is provided in front of the diaphragm b so as to form an annular sound passage f which communicates with an internal annular cavity g in the body of the stop member. The aperture c is formed by the junction of inner and outer tapered passages e, a, the angle of taper of the inner passage being greater than that of the outer passage. The stop member d may be formed with a flange d<1> by which it is secured in position in the front diaphragm clamping ring h or alternatively the member d may be formed integral with the ring h.
Patent GB-1464066-A (GB)
Title: Blowing agent mixture
IPC: C08J9/08
Filed: 1975-08-26
Abstract: 1464066 Blowing agent mixtures BAYER AG 26 Aug 1975 [29 Aug 1974] 35128/75 Heading C3C A blowing agent mixture comprises 1,4- butanediol-bis-(carbonic acid ester-benzoic acid anhydride) of formula  and finely divided silicon dioxide which preferably has a BET specific surface area of 50-400 m.<SP>2</SP>/g. The blowing agent mixture may be mixed with a granulated thermoplastic resin, e.g. a polycarbonate, polyamide, polyester or mixture of a polyphenylene ether and a polystyrene, which may be substituted, which contains a dispersed gel of a butadiene/styrene copolymer with optionally polybutadiene, and the resulting mixture is foamed by heating.