baber/WOPTO huggingface dataset:
Patent GB-285618-A (GB)
Title: Selectors for automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1926-12-31
Abstract: 285,618. Telefon-und Telegraphenbau-Ges., and Sienang, R. Dec. 31, 1926. Automatic exchange systems.-Single motion connectors with only one controlling magnet are set to a group under control of a marking switch and to a line directly by incoming impulses. As shown, the connector has two sets of doubleended wipers insulated from each other. The tens digit is repeated by line relay J over a front contact of release relay I to the magnet DBW of the marking switch BW. Series relay II on pulling up completes an interrupter circuit for magnet DEW of the connector, which advances until one of the wipers d reaches the marked terminal (off normal springs 75w maintaining the circuit after the relapse of series relay II), whereupon relay AI or AII operates its light armature 56a/l1 or 57a/l2 to stop the connector and an instant later its other armatures to switch over the impulse, circuit to the magnet DEW and connect up the test relay PI or PII. If the line is idle relay PI or PII, which pulls up on the relapse of the series relay, marks it busy, opens the impulsing circuit, and extends the talking circuit. Relay y pulls up when the called party answers. When both parties hang up, relays AI, PI or AII, PII fall back the marking switch is restored by means not shown, and the connector is stepped on until the springs 75w change over. In a modification in which the connector has a single set of wipers, the relays AII, PII are omitted.
Patent GB-825462-A (GB)
Title: A device for removing toxic substances from the exhaust gases of internal combustion engines
Inventor: BAUER ERNST
IPC: F01N13/02
Filed: 1957-10-23
Abstract: 825,462. Purifying and silencing exhausts. BAUER, E., and BAUER, A., [trading as BAUER & SOHN, A.]. Oct. 23, 1957, No. 33119/57. Class 7(2) A natural or synthetic meerschaum filter unit 6 removes tarry and plumbiferous combustion residues from exhaust gases, which as shown then pass through a filter unit 7 containing oxidants such as potassium chlorate, manganese dioxide and saltpetre embedded in kieselguhr acting as a catalyst. Strips of synthetic meerschaum pressed together to form nets may be used but as shown there are meerschaum and kieselguhr granules in respective perforated holders 9 retained by clamps 5 in a lidded rectangular container. Reference is made to cylindrical filter cartridges disposed longitudinally in the exhaust pipe, to cleaning of removable filter units by compressed air or washing out with soot-removing agents, to filter units (e.g. of meerschaum) at the start of an exhaust pipe, e.g. under a car bonnet, and filter units (e.g. of kieselguhr) in the outlet end of the pipe or in a casing screwed thereon, and to filter units acting as and replacing silencers.
Patent GB-782280-A (GB)
Title: Improvements in or relating to safety guards
Inventor: PRINCE JOSEPH EDWARD
IPC: B26F1/38
Filed: 1954-11-16
Abstract: 782,280. Safety guards for rotary cutters. BRITISH CELANESE, Ltd. Nov. 14, 1955 [Nov. 16, 1954], No. 33142/54. Class 80 (4). The motor-driven rotary knife of a portable cloth-cutting machine is guarded by two sheets 18, 19, preferably of transparent material or of wire mesh, which are independently and loosely pivoted on a spindle 17 carried by a verticallyadjustable plate 16 so as to rest on or just above the cloth being cut. A fixed rear guard 24 is provided. The sheets 18, 19 preferably have window slots 22 and are gravity-biased into cloth-engaging position. They may carry small wheels to engage the cloth. The tilting of the sheets 18, 19 is limited by the engagement of portions 26 with parts of the machine. The sheets 18, 19 have an extension 27 engageable by hand to move the sheets out of the cutting zone. The motor 8 is supported on a narrow standard 3 on a base plate 1 provided with small wheels or rollers. The knife 4 enters a groove in the base 1 through a throat 7 shaped and adjusted to prevent the drawing-in of fabric.
Patent GB-486524-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B9/08
Filed: 1936-12-03
Abstract: 486,524. Centrifugal machines. WATSON, LAIDLAW, & CO., Ltd., and WATT, H. Dec. 3, 1936, No. 33147. [Class 23] A centrifugal machine of the suspended type has a basket on the spindle 1 journalled for rotation in the ball member 3 of the suspension, and resilient buffer elements 5 associated with the ball and socket support 3, 4 to restrain the gyrating and creeping movements. The stator 6 of the driving motor, which may be operated by electricity or water, is rigid with the machine frame 7 and is mounted independently of the ball member 3. The motor shaft 8 is flexibly coupled to the basket spindle 1, by means of friction shoes 11 flexibly mounted on arms 12 extending from the shaft 8 which engage the inner face of a pulley 11 rigidly mounted on the spindle 1. In a modification flexible links are secured to discs or arms secured to the shaft 8 and the spindle 1. Where the power is applied by a belt, the pulley 11 is replaced by a belt pulley. Specification 445,566 is referred to.
Patent GB-839235-A (GB)
Title: Looper mechanism for sewing machines
IPC: D05B57/02
Filed: 1957-09-13
Abstract: 839,235. Linkwork. SINGER MANUFACTURING CO. Sept. 13, 1957 [Sept. 14, 1956], No. 33200/58. Divided out of 839,231. Class 80 (3). [Also in Group VII] A looper-carrying bar 26 in a chain-stitch sewing-machine is connected by a universal joint 34 to one end of a link 35, the other end of which is connected by a universal joint 44 to a crank-pin 45, and the latter is arranged on an axis skewed with respect to the axis of a shaft 54 carrying the crank-pin, whereby, on rotation of shaft 54, both reciprocatory and oscillatory movement is imparted to bar 26. Shaft 54 is disposed above the level of bar 26 to provide relatively rapid axial motion of the latter in one direction. The Clank-pin is mounted on a plate 60 slidable in a groove 61 in a crank-plate 58. Plate 60 is held in adjusted position longitudinally, for varying the crank throw, by screws 62. A screw 64, passing through plate 60 and abutting'plate 58, serves to adjust the inclination of the crank-pin for varying the extent of oscillation of bar 26.
Patent GB-317267-A (GB)
Title: Tropical packing for photographic plates, films and papers
IPC: B65D75/38
Filed: 1928-11-13
Abstract: 317,267. I. G. Farbenindustrie Akt.- Ges. Sept. 15, 1928, [Convention date]. Plates, films, and papers, receptacles for.-The wrapper in which light-sensitive materials are packed is enclosed in a thin sheet of metal e.g. aluminium foil, which is closed by means of a waterproof adhesive, preferably a cellulose derivative. A layer of varnish may be applied to the outside of the packing.
Patent GB-649979-A (GB)
Title: Improvements in and relating to a method and apparatus for the treatment of textile fabrics
IPC: D06C29/00
Filed: 1947-12-17
Abstract: 649,979. Renovating fabrics by abrasive blasting. STRUCKMAN, E. F. Dec. 17 1947, No. 33352. [Class 60] [Also in Group VIII] Used textile fabric, particularly in worn suits or costumes, is treated to remove smoothed or glazed surfaces and restore the nap by subjecting the surfaces to be restored to bombardment by fine particles of grit in a manner similar to that employed in sandblasting and under controlled conditions of air pressure and size of grit particles. The grit particles are blown through the fabric to cut and sever the entwined fibres, whilst the air blast serves to comb the separated fibres. The article to be treated may be mounted on a former inside a cabinet, the grit being directed from a grit gun through one or more openings in the cabinet walls. For treating serge, a grit of 200 mesh and a pressure of 20 to 60 lb. per square inch may be used.
Patent GB-936461-A (GB)
Title: Apparatus for depth measurement in cased boreholes
Inventor: BARLAI ZOLTAN
IPC: E21B47/04
Filed: 1959-10-01
Abstract: 936,461. Locating magnetic bodies. KOOLAJIPARI TROSZT. Oct. 1, 1959, No. 33359/59. Class 37. Apparatus for depth measurement in cased boreholes in which casing collars link successive longitudinal sections of the casing tube, comprises a sonde having a first pair of differentially connected coils 2, 2<SP>1</SP>, Fig. 1, around permanent magnets 4, 4<SP>1</SP> mounted perpendicular to the axis of the sonde and spaced by a distance equal to the collar casing, for measuring the casing reluctance whilst the sonde is being moved in the borehole and thus developing a pulse as the coil assembly passes each collar, and a second pair of coil 5, 5<SP>1</SP>, Fig. 2, which develop a signal proportional to casing reluctance whilst the sonde is stationary in response to an alternating current applied to a pair of coils 4, 4<SP>1</SP>. Single cables with earth return are used for supplying the coil systems and for returning the vindicating signals to apparatus on the surface. In a circuit arrangement, Fig. 4 (not shown), for the A.C. arrangement, D.C. is chopped by a pulsator for feeding to the inducing coils, and commonly driven pulsating contacts rectify the current in the measuring circuit, a variable resistor being provided in the feeding circuit for current adjustment, and a smoothing circuit being inserted between the rectifying contacts and the recorder in the measuring circuit. Three wire arrangements for depth measurement and operation of a casing perforator including either a remotely controlled switch or a blocking condenser are described with reference to Figs. 5 and 6 (not shown). The arrangements are described in combination with a radio active welllogging sonde. The depth measurement coils serving also as the radiation pick-up coils.
Patent GB-864108-A (GB)
Title: Novel hydrazine derivatives and salts thereof and a process for the manufacture of same
Filed: 1959-10-02
Abstract: The invention comprises nuclear substituted 1-(phenyl-alkyl)-hydrazines and 1-(phenyl-alkenyl) hydrazines wherein the alkyl and alkenyl groups are straight chain groups which contain from two to four carbon atoms and wherein the nuclear substitution consists of one or more halogen atoms and/or alkyl groups containing from one to five carbon atoms, alkoxy groups containing from one to four carbon atoms or alkylenedioxy groups containing one or two carbon atoms, and their acid addition salts, and a process for the preparation thereof by reacting an appropriately substituted phenyl alkyl or phenyl alkenyl halide with hydrazine a hydrazine hydrate, reducing the double bond in the alkenyl residue if present to obtain the corresponding saturated compound if required and, if desired, transforming the hydrazine derivative into an acid addition salt. (4-Methyl-phenyl)-ethyl bromide is prepared by reacting (4-methyl-phenyl) ethyl amine with nitrous acid to form (4-methyl-phenyl) ethyl alcohol and reacting this with phosphorous tribromide.  (3, 4-Dichlorophenyl)-ethyl bromide is prepared by hydrogenating 3,4-dichlorobenzaldehyde in the presence of Raney-nickel to give 3, 4-dichlorobenzyl alcohol, treating the alcohol with phosphorous tribromide to give 3, 4-dichloro benzyl bromide, converting the bromide to 3, 4-dichlorobenzyl cyanide by reaction with potassium cyanide, hydrogenating the nitrile in the presence of Raney-cobalt to give (3, 4-dichlorophenyl) ethyl amine, converting the amine to (3, 4-dichlorophenyl)-ethyl alcohol by nitrous acid and treating the alcohol with phosphorous tribromide, p-Chlorocinnamyl bromide; (3, 4-dimethoxy-); (4-methoxy-); (3-methoxy-); (3, 4-methylenedioxy-); and (3, 4, 5-trimethoxy-phenyl) ethyl bromides are similarly prepared from the alcohols, p-Chlorocinnamyl alcohol is prepared by reduction of ethyl p-chlorocinnamate with lithium aluminium hydride.  (3, 4, 5-Trimethoxy phenyl) ethyl alcohol is similarly prepared from ethyl (3, 4, 5-trimethoxy phenyl) acetate in turn prepared by esterification of the free acid.ALSO:An antipyretic, analgesic or psychotherapeutic agent or monoamine oxidase inhibitor comprises a nuclear substituted 1-(phenyl-alkyl)- or 1-(phenyl-alkenyl)-hydrazine or an acid addition salt thereof, wherein the alkyl or alkenyl chains contain two to four carbon atoms and wherein the nuclear substituents are one or more halogen atoms and/or C1-5 alkyl groups, C1-4 alkoxy groups or C1-2 alkylenedioxy groups, incorporated in an inert carrier or excipient.  The preparations may be administered either orally or paranterally and may take the form of tablets, capsules, elixirs or injectables.  Acid addition salts comprise salts with inorganic and organic acids such as hydrohalic, phosphoric, sulphuric, nitric, tartaric, citric, fumaric, ascorbic and salicylic acids.
Patent GB-1470677-A (GB)
Title: Keyboard musical instrument
IPC: G10H1/24
Filed: 1975-07-25
Abstract: 1470677 Electrophonic musical instruments W C WILKINSON 25 July 1975 [29 July 1974] 33434/74 Heading G5J An instrument with a conventional keyboard 2 is provided with means for selecting the note generated by depression of each key. As usual the keyboard is fed by twelve oscillators 7 through octave dividers 8 and supplies an amplifier 6 via shaping circuits 9. The output frequency of each oscillator is controlled by a respective switching circuit 12 which selects one of m frequency determining networks 13 under the control of a presetting module 16. It is stated that the module may select given ratios between the frequencies of the diatonic scales. a given temperament or a given transposition.
Patent GB-647743-A (GB)
Title: Improvements in building constructions
IPC: E04B1/342
Filed: 1947-12-18
Abstract: 647,743. Buildings; roofs. HARDY, A. L. Dec. 18, 1947, No. 33438. Convention date, July 6, 1946. [Classes 20(i) and 20(iv)] A reinforced concrete building having a large substantially saucer-shaped roof, e.g. a hangar, garage, factory, storage place or dwelling house &c. comprises circumferentially arranged pillars 1, Fig. 1, or a vertical cylinder supporting a circular crown 2 to which is attached a central part 3 of the roof, e.g. in the form of a cupola or cone and an annular overhung part 4 in the form of an inverted frustum of a cone or a spherical segment, the pillars 1 receiving the vertical compressional components of the central and overhung parts of the roof. As shown in Fig. 5 the vertical cylinder 7 is provided with ribs 10 and the central part of the roof consists of a cone 11 surmounted by a cupola 12. A central support 14, Fig. 6, is provided in another modification and the roof forms a swimming bath. Fig. 8 shows a house in which the space located beneath the overhung roof part 4 is enclosed by a glazed circular wall 20 which is not loaded by the roof, the layout of the rooms being shown in Fig. 10.
Patent GB-870833-A (GB)
Title: Sulphate-resistant portland cement
IPC: C04B7/02
Filed: 1958-10-21
Abstract: In the production of sulphate-resistant Portland cement, the composition of the clinker is adjusted, e.g. by adding materials having high iron oxide, silica, and limestone contents, so that the alumina modules (i.e. the weight ratio of Al2O3: Fe2O3) does not exceed 0,6 is preferably between 0,35 and 0,6 or advantageously between 0,5 and 0,55, and that the silicate modules (i.e. the weight ratio SiO2: (Al2O3 + Fe2O3) is at least 1,8, and so that the clinker contains at least 1 1/2 times as much tricalcium silicate, by weight, as mixed crystal phase containing iron oxide.
Patent GB-867734-A (GB)
Title: Delayed-release pharmaceutical preparations
IPC: A61K9/50
Filed: 1959-10-05
Abstract: Co-polymers are formed by the polymerization of approximately equimolar amounts of a half-ester of an a , b -unsaturated carboxylic acid and a water-insoluble monomeric vinyl compound in the presence of a small amount (0,1 to 0,3 mole per mole of half ester) of acrylic and/or methacrylic acid.  Polymerization may be carried out in a suitable solvent, e.g. esters, ketones, alcohols or low aliphatic hydrocarbon halides (or mixtures thereof) in the presence of a catalyst e.g. organic peroxides, hydroperoxides, azo compounds, inorganic "per" compounds such as hydrogen peroxide.  Specified half-esters are those of maleic, fumaric and itaconic acids with C1-8 aliphatic alcohols. Specified vinyl compounds are styrene and its derivatives, vinyl esters, acrylic esters, methacrylic esters and vinyl chloride.  An example relates to the preparation of a preferred co-polymer using butyl maleate half-ester (9,000 gms.), styrene (6,920 gms.) and anhydrous methacrylic acid (1,000 gms.) in dioxan with benzoyl peroxide (51 gms.) as catalyst at 105 DEG C. for 15 hours. Plasticizers, e.g. fatty oils, fatty acids, polyhydric alcohols, solid hydrocarbons, dioctyl phthalate, sorbitan trioleate and glyceryl monostearate may be incorporated into the polymers.  The products find application as compositions with and as coatings on pharmaceutical agents.ALSO:Solid pharmaceutical preparations, e.g. tablets, pills, and granules, are granulated with or enterically coated by conventional methods, e.g. pan-coating, with a protective layer or layers of a copolymer formed by the polymerization of approximately equimolecular amounts of a half-ester of an a ,b -unsaturated dicarboxylic acid and a water-soluble monomeric vinyl compound in the presence of a small amount (0.1 to 0.3 mol. per mol. of half ester) of acrylic and/or methacrylic acid. Suitable hemi-esters are those of maleic, fumaric and itaconic acids with C1-8 aliphatic alcohols, suitable vinyl compounds are styrene and derivatives thereof, acrylic and methacrylic esters and vinyl chloride.  A preferred copolymer comprises 1.1 mols. styrene, 0.1 to 0.3 mol. methacrylic acid and 1 mol. of the butyl half-ester of maleic acid.  The coating material of the invention may also be dissolved in a solvent together with a solid hydrocarbon or with glyceryl monostearate or aliphatic acids of high molecular weight and the resulting solution used for coating.  Plasticizers may also be incorporated, examples of those given being fatty oils, fatty acids, polyhydric alcohols, solid hydrocarbons, dioctyl phthalate, sorbitan trioleate, glyceryl monostearate.  Specific medicaments mentioned are: para-aminosalicylic acid, phenyl-ethyl-barbituric acid and 7-chloro-4-(41-diethylamino-11 - methyl - butylamino) - quinoline diphosphate.
Patent GB-1273976-A (GB)
Title: Improvements in or relating to filtration
Inventor: STEVENS RONALD JOHN
IPC: B03C1/034
Filed: 1968-05-11
Abstract: 1,273,976. Edge filter; magnetic filter. R. J. STEVENS. 9 May, 1969 [11 May, 1968; 15 May, 1968; 22 May, 1968; 9 July, 1968; 17 July, 1968], Nos. 22476/68; 23103/68; 24332/68; 32600/68 and 33926/68. Headings BID, BIT and B2J.  An edge filter comprises a stack of plates having various apertures therein, plates 3 having deflectable portions 14 (Fig. 14) which coact with portions 13 of plates 5 to define filtering gaps. During forward flow from passages 8 to passages 9, the fluid pressure tends to close the gap, portion 14 engaging the sides of an opening through plate 4, whose thickness defines the gap width, but during reverse flow cleaning the portion 14 is able to move into the wider opening in plate 2, widening the gap as shown on the left of Fig. 14 to release solids. In Figs. 1 to 14, portions 14 are formed as flaps, which are deflected by virtue of the flexibility of the plate material or by virtue of a line of perforations therein forming a hinge. Only the free edges of flaps 14 define the filtering gaps in Fig. 14, but Figs. 15 to 17 (not shown) illustrate similar stacks wherein plates 5 and the flaps of plates 3 are slotted in a staggered fashion to increase the effective lengths of the gaps. Plates 3, 5 could be spaced by extensions thereof rather than by separate plates 4. In Fig. 18 there are effectively two gaps in series, one between plates (3" and 3') the other between plates (3' and 5'). In Figs. 19, 20 parts of one plate (15) are supported at one end only by extensions (17) of plate (16), so that filtering gaps tapering from zero to an intermediate width are defined through which fluid flows from slots (22) to slots (21), while wider gaps are formed upstream through which fluid enters slots (22) and thus there is depth filtering. Figs. 21 to 24 (not shown) represent a filtrate outlet chamber presenting a square-sectioned outside, on whose respective faces are mounted filter stacks as in Fig. 14. The chamber is built up of sections and defines a cylindrical interior wherein rotates a helical channel, also built of sections, which delivers backwashing fluid to each outlet, leading to a passage 9, in turn. Fig. 25 represents an alternative plate whose central portion, slotted to extend the length of the filtering gap, is movable relative to its perimeter and relative to the coacting plate, by bending portions 33. Plates may be plastics or metal (exemplified) may be roughened and may be permanently magnetised. Fig. 28 shows a plate stack mounted between steel plates 39 in a magnetic field induced by electromagnetic coil 37. Liquid or gas may be filtered and backwashing may use liquid followed by gas and may be pulsed. The plate portions may be deflected directly by the backwash fluid or by pneumatic/hydraulic pressure applied through separate passages in the stack to the roots of flaps 14. In Fig. 28 plates may be shaken by alternating current in the coil.
Patent GB-851124-A (GB)
Title: Cup-shaped articles and process of forming same
IPC: B21C23/22
Filed: 1958-10-23
Abstract: 851,124. Making pistons; extruding; jointing by forging. BENDIX AVIATION CORPORATION. Oct. 23, 1958 [Nov. 29, 1957], No. 33986/58. Classes 83 (2) and 83 (4). [Also in Groups XVII and XXVI] A method of manufacturing a bimetallic cupshaped article, e.g. a piston for use in the hydraulic brake systems of automobiles, from a metal slug and a metal insert of less ductile metal than the slug comprises placing and aligning said insert on said slug, confining 9 'the-bottom- and sides of said slug and pressing said insert into said slug to cause the metal of the slug to flow outwardly at right-angles with respect to the direction of applied pressure and also parallel with respect to said direction to form a cylindrical side wall and to embrace the marginal portion of said insert. The discshaped steel insert 16 is strengthened by an annular rib 22 on its upper surface and a corresponding annular groove 24 on its lower surface. A central recess 26 engages with a protrusion 40 on the plunger 34 to assist in centring the insert on the aluminium blank 44 placed over the extrusion die cavity 32. In operation, the metal of the blank 44 is extruded upwardly between the edge of the insert and the diecavity and flows inwardly above the insert until arrested by the plunger to secure the insert in the bottom of the extruded cup-shaped article. An ejector 42 is raised to remove the workpiece from the die. In a modification, a flat disc-shaped insert is used with only a central recess corresponding to the recess 26.