baber/WOPTO huggingface dataset:
Patent GB-915122-A (GB)
Title: Improvements in and relating to illumination measuring devices
IPC: G03B7/12
Filed: 1959-10-08
Abstract: 915,122. Exposure setting devices. AGFA A.G. Oct. 8, 1959 [Oct. 25, 1958], No. 34174/59. Class 98 (1). In an exposure meter for a camera having coupled shutter-speed and diaphragm-setting rings, the galvanometer needle has two arms which are immobilized to remain in their setting by a resilient brake prior to contact with them of an exploratory member which has notches at varying height so as to engage the needle arms at a height depending on the galvanometer deflection. In a camera (Fig. 1) in which the shutter speed and diaphragm setting-rings, 4 and 5, are coupled by the engagement in slotted flanges 6 and 7 on the rings of a coupling-pin 10, the latter is carried on a hollow operating-rod 11 loaded against depression by tension-spring 36 acting between the camera body 1 and a projection 34 on the rod 11. In the partly hollow release button 13, spring 15 bearing on rod 11, which can telescope into the annular space within button 13, is stiff enough to prevent such telescoping during the initial part of the depression of button 13 whereby rod 11 and pin 10 move downwardly to set the rings 4 and 5 until further movement of rod 11 is prevented by the engagement of a hollow cylindrical exploratory member 17, carried on the end of rod 11, with upturned lugs 26, 27 on flat needle arms 23, 24 carried on a spindle 22 of a galvanometor 21. The arms are resilient so that downward pressure brings them to bear on the support 25. The exploratory member 17 has gaps in its cylindrical skirt having notches 18, 19 (Fig. 2) which are so arranged that only a notch in one gap, at a height determined by the galvanometer deflection, will engage a correspondingly tapered lug, the notches of the other gap being out of line with the corresponding lug for that particular engagement height. Prior to any such engagement, the arms have been immobilized in their deflection position by means of a brake pad 44 resiliently pressed by means of a spring 46 and rod 12 housed within the operating rod 11. On engagement of the exploratory head, the camera is set and further depression compresses spring 15, and causes the projection 37 on the release button to engage a lever 39 controlling the shutter release mechanism. If there is insufficient light for an exposure, the deflection of the galvanometer arms will be such that the lugs 26 and 27 will engage the lower edge 42 of the exploratory member and thereby prevent the engagement of the release button projection 37 with the shutter release lever 39. The galvanometer assembly as a whole may be rotated by wheel 32 to allow for film sensitivity indicated by scale 33. An additional pointer may be provided to indicate on a scale the amount of illumination.
Patent GB-889067-A (GB)
Title: Preparation of esters
IPC: C07C69/34
Filed: 1959-10-09
Abstract: Complex esters are prepared by esterifying in one or more stages: (a) either (i) an aliphatic monohydric alcohol or mixture of such alcohols, or (ii) an aliphatic monocarboxylic acid or mixture of such acids; (b) an aliphatic dicarboxylic acid or mixture of such acids; and (c) an aliphatic diol or mixture of diols, a molecular sieve being used as esterification catalyst, preferably in amounts of 0,01-10% by weight based on the combined weight of dicarboxylic acid and diol.  The molecular sieves may be natural or synthetic zeolites. A water-entrainer such as benzene may be present.  Specified monohydric alcohols are C8-C13 alcohols, such as 2-ethylhexanol, isooctanol, 3,5,5-trimethylhexanol and isotridecanol; specified monocarboxylic acids are C8-C10 acids, such as pelargonic and 2-ethylhexanoic acids; specified diacids are sebacic, adipic and azelaic acids; specified diols are ethylene glycol, propylene glycol, neopentyl glycol and polyethylene glycol 200.  Specification 687,348 is referred to.ALSO:Complex esters are prepared by esterifying in one or more stages: (a) either (i) an aliphatic monohydric alcohol or mixture of such alcohols, or (ii) an aliphatic monocarboxylic acid or mixture of such acids; (b) an aliphatic dicarboxylic acid or mixture of such acids; and (c) an aliphatic diol or mixture of diols, a molecular sieve being used as esterification catalyst, preferably in amounts of 0.01%-10% by weight based on the combined weight of dicarboxylic acid and diol.  The molecular sieves may be natural or synthetic zeolites.  A water-entrainer such as benzene may be present.  Specified monohydric alcohols are C8-C13 alcohols, such as 2-ethylhexanol, isooctanol, 3,5,5-trimethylhexanol and isotridecanol; specified monocarboxylic acids are C8-C10 acids such as pelargonic acid and 2-ethylhexanoic acid; specified di-acids are sebacic, adipic and azelaic acids; specified diols are ethylene glycol, propylene glycol, neopentyl glycol and polyethylene glycol 200. Specification 687,348 is referred to.
Patent GB-868983-A (GB)
Title: Improvements in or relating to apparatus for effecting amplitude compression of electric signals
Inventor: ROBINSON ALAN SEYMOUR
IPC: H03G7/02
Filed: 1958-10-27
Abstract: 868,983. Automatic volume control. GENERAL ELECTRIC CO. Ltd. Dec. 8, 1959 [Oct. 27, 1958], No. 34318/58. Class 40 (4). In a compressor of the type in which two diodes 16, 17 are connected back-to-back in shunt with the transmission path and have their impedance varied by a D.C. control signal from the output of the compressor, the path between the diodes and the output of the compressor has the characteristic of a high-pass filter and the circuit 26 for deriving the control signal has a time constant such that the highest frequency of the ripple produced thereby is less than the cut-off frequency of the path. As described, the high-pass filter 5, comprising inductors 34, 35 and capacitor 36 has a cut-off frequency of 250 c/s., and the resistor 37 and capacitor 32 are chosen to have a time constant of 5 m.secs. If the amplifier stages 4, 6, 7 have the necessary overall high-pass filter characteristic, the high-pass filter 5 may be omitted.
Patent GB-471881-A (GB)
Title: Process for manufacturing gun-rings
IPC: F41C23/00
Filed: 1935-12-11
Abstract: 471,881. Making bands for smallarms. FROMMER, R. VON. Dec. 11, 1935, Nos. 34408 and 34409. Void. Convention dates, Dec. 11, 1934 and Feb. 22, 1935. [Class 83 (ii)] Rings or bands for smallarms are produced by sheet-metal working operations from sheet iron in plate or tubular form. Rings so produced may serve to receive the sling, to attach the stock to the barrel, or to secure the bayonet or other part. A sheet metal member 1, Fig. 4, is stamped to form projections 4, 5, and is formed with slits 2, 3, the metal 6 between which is pressed out of the plane of the strip 1 and its edges curved. The projection 5 is pierced and the edges bent inwardly, forming an aperture 7 which may be tapped to receive a screw for securing the completed ring. The strip 1 is bent to ring form and the ends welded. The part 6 receives the sling, this part being omitted in a modification. The edges of the ring may be beaded to impart stiffness. In a further modification a ring 10, Fig. 15, is produced by a series of steps similar to that shown in Fig. 4, and is then shrunk, welded, or soldered on to a ring 9. Three or more tubular sections may be so assembled. A further form of ring comprises an outer tubular part 11, Fig. 28, in which is inserted a member produced by bending a perforated blank, shown in Fig. 24, along the lines 23, 24, 25, this member providing a recess 27 to receive the barrel, and a hole 20 through which passes a pin for fastening a bayonet. An extension 26 is perforated to receive a pin which facilitates piling the firearms in the form of a pyramid. In a further modification, a ring 28, Fig. 32, is bent up from a flat blank, and has spaced, tongues 29, 30 between which a tubular member 38 is inserted, the protruding ends, reduced to pass through apertures in the tongues, being spun over to retain the ends of the ring. A sling ring is received by the perforation 41.
Patent GB-606449-A (GB)
Title: Improved portable high pressure lubricating apparatus for delivering lubricants and other liquids by air pressure
IPC: F16N3/08
Filed: 1945-12-19
Abstract: 606,449. Forcing liquids by gaseous pressure. SOMLYO, E. Dec. 19, 1945, No. 34440. [Class 102 (ii)] A container a is fitted with an air pump d, which forces air past the non-return valve m into the container, and also a pipe g, connected to a fitting f having an adjustable valve i. A pipe h is screwed into the fitting f and has a threaded end on which is screwed a nozzle h<1>. A plug a<1> is provided on the container to which a different form of nozzle h<2> may be screwed to be available to interchange with nozzle h<1>. The pipe h, may be removed from the fitting f and stowed in a clip n.
Patent GB-1294039-A (GB)
Title: Pile carpeting
Inventor: DORNHEIM GOTZ GOTMAR
IPC: D05C17/02
Filed: 1970-07-16
Abstract: 1294039 Pile fabrics FARBENFABRIKEN BAYER AG 16 July 1970 [16 July 1969] 34468/70 Heading D1K A pile fabric has pile yarns comprising blended fibres of polyacrylonitrile and from 10% to 50% by weight of crimped polyamide of at least 50 dtex. The polyacrylonitrile fibres are a polymer containing at least 80% by weight of acrylonitrile the remainder being vinyl -vinylidine monomers such as vinyl chloride, vinyl acetate and vinyl pyridine and acrylic or methacrylic compounds such as acrylate or methacrylate esters and the polyamide may be polyamide 6.
Patent GB-1195848-A (GB)
Title: Improvements in or relating to Machines for Cutting Grass and other Vegetation
Inventor: ROGERS EDWARD ALBERT
IPC: A01D34/53
Filed: 1967-07-27
Abstract: 1,195,848. Grass cutting machines. WILKINSON SWORD Ltd. 19 July, 1968 [27 July, 1967], No. 34554/67. Heading A1F. [Also in Division B3] A rotary cutting cylinder, e.g. for cutting grass, is produced by spacing at least three spiders 20; Fig. 4, along a shaft 30, twisting each of a plurality of spring strip blades 10 into a permanent helical form, and securing the blades to outer projections 23 formed on the spiders 20, the projections 23 being formed with surfaces 24 inclined such that the corresponding portions of the associated blades 10 lie at least substantially in contact with them, and the blades 10 being orientated so that their outer major surfaces lie substantially on their cylindrical surface of revolution. Preferably, the blades 10 are of EN44 spring steel, optionally chromium plated and heat treated, and the spiders 20 may be of malleable cast iron or aluminium. Alternatively, Fig. 10, a spider 50 having individual arms may be employed.
Patent GB-605410-A (GB)
Title: Improvements in or relating to wheels or rollers
IPC: B66B23/14
Filed: 1945-12-21
Abstract: 605,410. Escalator wheels. EXPRESS LIFT 'CO., Ltd., and WIGGETT, A. Dec. 21, 1945, No. 34764. [Class 78 (i)] A wheel or roller for an escalator comprises a pair of centrally apertured discs 1, of substantially similar construction, secured together and so formed that a resilient tyre 5 is held in positior between the discs at their outer periphery and a bearing or bear ings 7 is held in position betweer the discs at their inner periphery The discs may be riveted together for easy-separation, or bolted, and the outer surfaces of the discs in contact with the tyre may b( serrated. The bearings may be ball, sleeve or roller.
Patent GB-288940-A (GB)
Title: Improvements in packing devices for rotary shafts or spindles
IPC: F16J15/34
Filed: 1927-12-22
Abstract: 288,940. Beldam Packing & Rubber Co., Ltd., and Robinson, G. H. Dec. 22,1927. Stuffing-boxes, substitutes for.-In packing of thetype in which a coned member g rotating with the shaft is pressed towards a stationary coned seating c<1> by means of a spring- pressed plate e, the member g is recessed to receive an insertion k of leather, or similar material, which forms the wearing surface. The leather may be backed by rubber or similar material l. A ball thrust-bearing m may be inserted between the member g and the plate e, or the member g may be formed with a flat or coned surface engaging the plate e. A stop h on the shaft engages a slot, i in the member g. Specification 178,963 is referred to.
Patent GB-507582-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/74
Filed: 1937-12-16
Abstract: 507,582. Television receivers. FERNSEH AKT.-GES. Dec. 16, 1937, No. 34875. Convention date, Dec. 16, 1936. [Classes 39 (i) and 40 (iii)] Distortion, due to the image of the fluorescent screen 2 of a cathode-ray tube 1 being projected on a viewing screen 5 at an angle alpha to the normal, is compensated by distorting the image produced on the screen of the tube, which is inclined at an angle # to the optical axis. The normal to the fluorescent screen is inclined to the direction of the undeflected electronic beam. The angle # is a fraction of the angle alpha equal to the inverse of the magnification of the optical system. The tube is so mounted as to be movable about a horizontal axis. Elliptical distortion of the spot of light is avoided by a compensating elliptical focusing field. The electronic beam is maintained in focus by variation of the focusing field. According to modifications, the fluorescent screen is deposited on a reflecting surface, and the light passes through an optically flat surface forming part of the envelope of the tube, Fig. 4 (not shown); the light from the fluorescent screen is reflected from a mirror in the tube, Fig. 5 (not shown) ; the fluorescent screen is on a carrier which is adjusted by an external control.
Patent GB-1471259-A (GB)
Title: Drive connection means suitable for a hydraulic device
IPC: F01C21/04
Filed: 1974-08-08
Abstract: 1471259 Rotary positive-displacement fluidmachines EATON CORP 8 Aug 1974 [8 Aug 1973 13 Aug 1973] 34920/74 Heading F1F The main drive-shaft 60, Fig. 1 of a machine of the gerotor type is prevented from moving axially when the torque is reversed by a pre-stressed spring 65 which holds the shaft 60 and a valve drive-shaft 42 against a face 43. This enables a fixed wear pattern to be established on the splines of the shaft thereby spreading the load more evenly over the teeth. In a second embodiment rods 68, 74, which are subjected to hydraulic pressure in either chamber 38' or passage 73, hold the shaft 60' against axial forces.
Patent GB-605508-A (GB)
Title: Improvements in or relating to expansion joints for concrete and the like roads, floors and the like
IPC: E01C11/10
Filed: 1945-12-27
Abstract: An expansion joint for concrete and the like roads, floors and the like is formed from a composition comprising an aqueous rubber dispersion, a cementitious material such as Portland or aluminous cement, and a proportion of comminuted rubber, the term "rubber" including natural rubber, allied vegetable resins such as guttapercha and balata, synthetic rubbers such as elastomeric derivatives of butadiene, styrene and chloroprene, and rubber reclaim.  In an example 200 parts by weight of Portland or aluminous cement are mixed with 160 parts of comminuted rubber waste and the mixture formed into a circular dam, whereupon a mixture of 100 parts concentrated rubber latex and 75 parts of water is poured in whilst stirring steadily from the centre. Specification 369,561 is referred to.
Patent GB-522107-A (GB)
Title: Method and means for protecting and reinforcing sheets of printed paper, documents, books and the like
IPC: B41M7/00
Filed: 1938-12-01
Abstract: 522,107. Pictures; books. SUNDERLAND, C. Dec. 1, 1938, No. 35010. [Classes 11 and 16] [Also in Groups XVI and VIII] Printed paper, parchment, music or charcoal or crayon drawings or other pictures are protected or preserved by applying by heat and pressure a sheet of tissue paper serving as a vehicle for a transparent adhesive (e.g., natural or synthetic resins). The sheet may be tinted to absorb undesired rays of light. To obtain immunity from air and moisture, a sheet is applied on both sides. Old books must be first dissected and the leaves treated and then re-bound. The documents are heated to about 90‹C. in a press consisting of a base 1 with cushioning material 2 carrying a thin sheet of copper. A similar sheet 5 of copper is fixed to the press head 3 which accommodates heating. elements under the control of a thermostat. The printed paper 11 is fed under a web 10 of coated tissue paper and supported by clamp bars 12 carried by a slide 13. The tissue paper may incorporate an identifying watermark for use with passports or code sheets.
Patent GB-987181-A (GB)
Title: Method of photonitrosation of cycloalkanes
Filed: 1962-09-14
Abstract: Cycloalkanone-oxime hydrochlorides are made by the photochemical reaction of nitrosyl chloride on cycloalkanes which comprises continuously feeding a mixture of nitrosyl chloride and hydrogen chloride to the reaction system and continuously recycling the off gas from the photonitrosation reaction to the reaction system together with sufficient nitrosyl chloride and hydrogen chloride to replace the losses of these gases occasioned during the reaction. The amount of hydrogen chloride present at any given time should be more than one mol. of hydrogen chloride per mol. of cycloalkane, normally of the order of 8-200 mols. per mol. and preferably 10-100 mols. per mol. of cycloalkane.  The cycloalkanes preferably have 5-14 carbon atoms.  Examples describe the preparation of cyclohexanone oxime hydrochloride and cyclo-octanonoxime hydrochloride.
Patent GB-343953-A (GB)
Title: Improvements in or relating to filaments, yarns, fabrics, and other materials made of or containing cellulose esters
IPC: D06P5/22
Filed: 1929-11-18
Abstract: Artificial silk &c. threads, fabrics, &c., are made of or contain cellulose esters exhibiting different degrees of resistance to saponification.  The materials may be made of or contain esters such as the acetate, formate, propionate or butyrate; and with the materials may be mixed other fibres such as wool, silk, cotton, viscose or other artificial silks.  Portions of the esters may be saponified wholly, and others partly or not at all.  The saponified portions have affinity for substantive cotton dyes, and according to the degree of saponification, may or may nor lose their affinity for the dispersed insoluble type of dyes.  Differing degrees of resistance to saponification in any one ester may be produced by variation of the initial acidyl content, or by varying the conditions of spinning or other factors; for example, by varying the solvent content of the evaporative medium in the immediate vicinity of the spinning nozzles in a dry-spinning process.  When 25 per cent or more acetone solution of cellulose acetate is used, if the concentration of acetate vapour in the region of the spinning nozzles is say 2 or 3 per cent, the filaments are more resistant to saponification than when it is below 1 per cent.  The solvent content may be increased by the injection of solvent vapour, or by decreasing the rate of flow of the evaporative medium.  Periodic variation of the concentration produces a corresponding periodicity of resistance to saponification in the same filament. Such filaments may be made into yarns, threads, cords, and knitted, woven, or other fabrics.  Doubled yarns or cords, exhibiting novel effects in dyeing, may be produced by associating yarns so that the parts of like resistance are out of register to a predetermined extent.  Buffer salts and swelling agents may be added to the saponification bath; for example, when treating materials containing two different cellulose esters, for example, cellulose acetate and cellulose benzoate, the swelling agent may be so chosen as to swell or promote saponification of only one of the esters.  The materials may be saponified superficially or completely, or they may be uniformly partly saponified.  The materials may be coloured before, during, or after the saponification treatment; in an example describing the differential saponification of cellulose acetate material, the latter is dyed by the addition of a cotton dyestuff to the saponification bath.  Specification 343,973 is referred to. According to the Provisional Specification the desired differential effect may be obtained by the use of products made from different esters.
Patent GB-956613-A (GB)
Title: Improvements in or relating to the production of polycyclic imines
IPC: C07D221/22
Filed: 1961-09-29
Abstract: Di- and tricyclic imines are made by contacting the vapour of a mono- or bicyclic primary diamine, the amino groups of which are separated from each other by at least 3 carbon atoms and are each bonded to a carbon atom carrying at least one hydrogen atom and in which diamine the ring is a 4 to 8 membered hydrocarbon, which may be aromatic with a catalyst comprizing aluminium oxide and/or aluminium silicate at 250 to 450 DEG C., preferably at 300-400 DEG C. An inert gas may be employed to dilute the reactants.  In the examples the compounds having the following formulae are produced in addition to tetrahydroisoquinoline. <FORM:0956613/C2/1>
Patent GB-806440-A (GB)
Title: A method of forming a filling orifice in a sheet metal valve cover or container
IPC: B21D51/38
Filed: 1955-12-08
Abstract: 806,440. Making container &c. filling orifices. WESTWOOD RIM & PATENTS Ltd., WESTWOOD, S. C., and WESTWOOD, N. F. Nov. 19, 1956 [Dec. 8, 1955], No. 35236/55. Class 83 (2). In a method of making a circular filling orifice in a sheet metal valve cover or sheet metal container, the sheet 3 is pierced to form an aperture of appropriate shape, the marginal edges of which are then pressed to form inwardly-directed flanges 5 extending between diametrically opposed recesses, the inner edges of the flanges forming cams for engagement by parts 7 of a closure member 8. Specification 806,439, [Group XVII], is referred to.
Patent GB-1520472-A (GB)
Title: Photographic element gelatinous composition and a method for preparing the element
IPC: C08J7/04
Filed: 1975-08-26
Abstract: 1520472 Treating photographic elements GAF CORP 26 Aug 1975 [9 Dec 1974] 35258/75 Heading G2C [Also in Division C3]  A gelatine-containing composition for treating a photographic film comprises (a) 1 to 2.5 wt. per cent, based on the total gelatine solids content of the composition, of an aqueous dispersion of a C 12  to C 32  organic fatty acid salt of Li, Na, K, Mg, Ca, Ba, Sr and Al wherein the average (by number) particle size of the solids suspended in the dispersion is about 1 micron and the viscosity (as measured by a Brookfield LVF Viscometer, 12 rpm, No. 2 spindle) of the dispersion is about 350 cps to about 750 cps; and (b) 2À5 to 5 wt. per cent, based on the total gelatine solids content of a quaternary ammonium compound of the Formula RCONH(CH 2 ) 3  N<SP>+</SP> R 1  R2 R 3 , NO-3 wherein R is C, to C 1 , alkyl, R 1  is hydroxyalkyl having from 1 to 6 carbon atoms and R2 and R3 are each C 1  to C 6  alkyl. The composition imports antistatic and slippage properties to the photographic element to which it is applied. R may be e.g. stearyl, mynstyl, capryl or abietyl. The preferred quaternary compound is stearamido-propyl dimethyl #-hydroxyethylammonium nitrate (e.g. as a 50% solution in an isopropyl alcohol/water mixture) and component (b) is preferably calcium stearate.
Patent GB-425385-A (GB)
Title: An improved method of manufacturing bearings of composite metals
IPC: C23C4/02
Filed: 1933-12-15
Abstract: 425,385. Making composite metal bearings. BALLARD, W. E., 46, Fellows Lane, Harborne, Birmingham. Dec. 15, 1933, No. 35300. [Class 83 (ii)] In making bearings the surface is cleaned, coated with metal to form an intermediate layer, and then sprayed with a composite bearing-metal. The bearing surface of a steel bearing-shell is roughened by a blast of shot or of sand, cleaned anodically by a current of 20 amperes per square foot in 20 per cent sulphuric acid, electroplated with copper from a cyanide bath to a thickness of about À004", washed, dried, and sprayed with copper containing 30 per cent of lead as described in Specification 419,960, [Group II]. The bearing may then be annealed at 650-700‹ C. for two or three hours and machined.