baber/WOPTO huggingface dataset:
Patent GB-658658-A (GB)
Title: Automatic fire arms
IPC: F41A9/02
Filed: 1949-01-21
Abstract: 658,658. Automatic firearms. ZBROJOVKA BRNO, NARODNI PODNIK. Jan. 21, 1949, No. 1766. Convention date, Jan. 27, 1948. [Class 119] Relates to automatic firearms of the kind in which the rounds are fed into the breech chamber by a feeder 9 rotatable on a transverse spindle 10. According to the invention the feed lever 7 which, in known manner is pivoted to the breech-block 3 and serves to impart a step-bystep rotation to the feeder, has its movements so controlled by a member 13 that it prevents rotational movements being imparted to the feeder if the breech-block should fail to reach its fully retracted position. The member 13 shown is in the form of a projection so arranged in the breech casing 2 as to provide guiding surfaces for a lateral projection 17 on the lever 7. The path taken by the projection during normal firing conditions is shown by arrows in Fig. 4, a partial rotation being given to the feeder as the projection 17 nears the end of its forward travel projection 17 nears the end of its forward travel however, the breech-block not reach its fully retracted position the projection 17 will not reach the end of the ledge 14 of the member 13 and will therefore return, under the action of the breech-block return spring 4, to the position shown in Fig. 2 without imparting any rotation to the feeder. Specification 502,782 is referred to.
Patent GB-831633-A (GB)
Title: Improvements in or relating to an apparatus for moving flowable solid material
Inventor: MUSSCHOOT ALBERT
IPC: B65G67/00
Filed: 1958-01-20
Abstract: 831,633. Jigging conveyers; unloading vehicles. LINK-BELT CO. Jan. 20, 1958, No. 1902/58. Classes 78 (1) and 78 (4).  Flowable solids are loaded into, or unloaded from a railway boxcar through an opening arranged centrally of one side thereof by so vibrating the floor of the car that alternate vibratory movements are imparted to opposite ends thereof which apply a positive conveying action to the material in opposite end portions of the car in opposite directions. The car is supported at the discharge &c. point by rails 17, Fig. 1, at different elevations carried by a movable platform 18 and is retained by clamping devices 19 which automatically centre the car on the support. The platform is supported by pivoted arms 23 of equal length which extend upwardly and outwardly toward opposite ends of the car. Spring assemblies 24 urge the platform into the position in which the arms 23 make equal and opposite angles with it. Jacks 25 are provided at each end of the pit 22 to support the platform as a car is moved on to it. A motor-driven shaft 27 is rotatably mounted on the bottom of the platform and carries two unbalanced weights 67.
Patent GB-946538-A (GB)
Title: Improvements in or relating to photo-mechanical printing processes
Inventor: SEVENS GERARD MICHIEL
IPC: G03C8/06
Filed: 1959-01-19
Abstract: 946,538. Lithographic silver salt diffusion processes. GEVAERT PHOTO-PRODUCTEN N. V. Jan. 19, 1960 [Jan. 19, 1959], No. 1932/59. Headings G2C and G2M. Processes for the production of printing plates by silver halide diffusion transfer on to an aluminium plate, the metal of which plays an active part in the electrolytic reduction of the transferred silver salt, are conducted with a cadmium and/or zinc salt present during the step of pressing the silver halide emulsion layer into contact with the plate to improve the adherence of the image. The salt may be in the emulsion, combined with the surface of the plate or in the developer, in which case a wetting agent such as an aliphatic alcohol may also be present. Specified salts are cadmium and zinc chlorides, nitrates, sulphates and thiosulphates and zinc acetate, oxalate and tartrate. Generally applicable features of the process are as described in Specification 913, 591 through the present Specification contains a more exhaustive list of suitable ingredients for lithographic preparations suitable for aftertreatment to improve ink-receptivity than is given therein. Specification 821, 251 also is referred to.
Patent GB-620543-A (GB)
Title: Improvements in or relating to internally expanding vehicle brakes
IPC: F16D65/08
Filed: 1947-01-22
Abstract: 620,543. Internally - expanding brakes. BRACEWELL, G. A. Jan. 22, 1947, No. 1965. [Class 103 (i)] In an internally expanding brake of the kind in which the shoes are normally in tight rubbing contact with the drum when the brake is released, as described in Specification 519,787, each shoe is formed in two parts, which are pivoted together at 14 to permit small relative angular movements, the heel part 10 having also a fixed abutment and the toe part being engaged directly by the shoe spreading means at 13, a spring or springs 19 being arranged between the two parts which rocks the toe part through a small angle out of contact with the drum when the brake is released. The movement is limited by the adjustable screwed stud 22 in the lugs 21 secured to the brackets 18. In one form, the toe and heel parts are made of approximately equal lengths, half or all the lining being carried by the toe part, the angular movement being limited by a pin on the heel part engaging a slightly larger hole on the toe part, the two parts being displaced by a short helical compression spring.
Patent GB-264329-A (GB)
Title: Improvements in or relating to screwing machines
IPC: B23G1/22
Filed: 1926-01-23
Abstract: .264,329. Heap &. Co., Ltd., J., and Hall, R. P. Jan. 23, 1926. Screwing; die-heads.-In a screwing-machine for cutting taper or parallel threads the die-head 9 is mounted on a carriage 4 movable along a bed 3 by means of a hand wheel 5, an idle pinion 6, a spur wheel 7 and a rack 8, the work being rotated. The discs 10a, which are tangential to the work, are adjusted by a cam plate 11 rotatable through worm teeth 12 and a worm 13 carried by a hollow shaft 14 rotatably mounted on the carriage 4. The shaft 14 carries a friction clutch member 19 which may be made to engage a member 18 secured to a shaft 17, passing through the shaft 14, by means of a nut 14a coacting with a hand wheel 16 on the shaft 14. A chain 21 connects a sprocket 20 on the clutch member 18 to a sprocket 22 carrying a pinion 24 engaging a fixed rack 25, the arrangement being such that as the dies travel along the work the pinion 24 rotates the worm 13 and progressively varies the pass between the dies, the inclination of the taper being adjusted by changing the chain sprockets. For cutting parallel threads the friction clutch 18, 19 is disengaged and the dies adjusted by the hand wheel 16.
Patent GB-979507-A (GB)
Title: Manufacture of hard pitches
IPC: C10C1/19
Filed: 1961-01-18
Abstract: <PICT:0979507/C4-C5/1> In a modification of the process for preparing hard pitches of the parent Specification the heated material is passed from the tube furnace into the upper vessel of two connected insulated vessels 1, 2 and the pitch product is withdrawn from the lower vessel at the same rate as the upper vessel is being filled, the contents of the upper vessel when the upper vessel is full being rapidly discharged into the lower vessel by opening the valve 4 until the upper is empty.  In a further modification four insulated vessels are provided and the material from the tube furnace is fed into each vessel in turn and the pitch product is discharged from that vessel which has been filled for the longest time.
Patent GB-103365-A (GB)
Title: Improvements in Wick-adjusting Means for Lamp, Stove and like Liquid-fuel Burners.
Inventor: WINSALL JOSEPH
IPC: F23D3/00
Filed: 1916-02-12
Abstract: 103,365. Winsall, J. Feb. 12, 1916. Wick-operating devices; wick burners, flatflame and mitrailleuse; burners, arrangements of. -The wicks F are carried by perforated tubes C<3> which slide in sockets B', being raised and lowered by two screws E, E', which are held against vertical movement and engage arms D<1>, D<2> on a disk or frame D carrying the tubes C<3>. When more than one wick is employed, a number of disks or frames may be provided, each actuating one wick or a set of wicks. The burners may be round instead of flat, and arranged in the form of one or more circles, squares, or triangles.
Patent GB-1002914-A (GB)
Title: Self-fusing flame spray material and process
IPC: C23C4/06
Filed: 1964-01-17
Abstract: A powder mixture for flame spraying comprises 5-50% by weight of metal powder coated with a metal with which it exothermically reacts at flame-spraying temperatures to form an intermetallic compound (see Specification 1,000,353) the balance being a conventional spray-weldable self fluxing metal powder (see U.S.A. Specifications 2,936,229 and 2,875,043 for instance).  10-75% by weight of the total mixture of refractory carbide particles may also be added.
Patent GB-1401414-A (GB)
Title: Water-soluble trisazo dyestuffs derived from 4,4-diamino benzanilide
IPC: C09B35/46
Filed: 1974-01-17
Abstract: 1401414 Water-soluble trisazo dyestuffs from 4,4<SP>1</SP>-diamino-benzanilide PRODUITS CHIMIQUES UGINE KUHLMANN 17 Jan 1974 [18 Jan 1973] 02235/74 Heading C4P Novel trisazo dyestuffs of the formula (wherein A is the residue of a diazotizable primary amine of the benzene or naphthalene series in which any substituents are halogen atoms or nitro, hydroxy, alkyl, alkoxy, carboxy or sulpho groups; B is the residue of an amino-naphthol mono- or di-sulphonic acid capable of coupling twice; and E is the residue of a heterocyclic coupling component or, if A is a naphthalene residue, also the residue of a naphthalene coupling component) are prepared by coupling one mole of an amino-naphthol sulphonic acid of the formula wherein n is 1 or 2, with, on the one hand, the diazo derivative of one mole of an amine A-NH 2  and on the other hand, the tetrazo derivative of one mole of 4,41-diaminobenzanilide, then coupling the product with one mole of a coupling component E-H, the first coupling being in acid medium and the others in alkaline medium. The dyestuffs are useful for the coloration of natural fibres, particularly for cellulosic fibres and also for paper and animal fibres such as wool, silk and leather.
Patent GB-933193-A (GB)
Title: Process for the preparation of chrysanthemumic acid
IPC: C07C69/747
Filed: 1961-06-20
Abstract: A process for preparing (dl) trans chrysanthemumic acid comprises treating 4-methyl-3-isobutenyl-g -valerolactone with a hydrogen halide in an alcoholic medium to open the lactone ring, cyclising the resultant alkyl 5-methyl-3-(1-haloisopropyl) hex-4-enoate into a (dl) trans alkyl chrysanthemumate and saponifying the ester group into a carboxylic acid group.  The lactone is preferably treated with thionyl chloride before the reaction with the hydrogen halide.  The cyclisation step is preferably carried out by treatment with an alkali metal amide, alcoholate or hydride in a solvent medium, e.g. an aromatic hydrocarbon or N-substituted aliphatic acid amide.  In an example, 4-methyl-3-isobutenyl-g -valerolactone is refluxed in a mixture of chloroform and thionyl chloride, the resultant mixture is cooled and poured into a saturated solution of hydrogen chloride in ethanol, and ethyl 5-methyl-3-(1-chloroisopropyl)hex-4-enoate is recovered by distillation.  This product is cyclised using sodium tert-amylate in benzene to (dl) trans ethyl chrysanthemumate which is saponified with alcoholic potassium hydroxide.  4-Methyl- 3-isobutenylg -valerolactone is prepared by refluxing isobutylidene acetone (2-methyl-hex-2-en-5-one) with pyrrolidine in benzene, reacting the enamine product with ethyl bromoacetate in benzene, distilling off the benzene and refluxing the residue in aqueous methanol to give ethyl 5-methyl-3-acetyl-hex-4-enoate. Th enoate is treated with methylmagnesium iodide in benzene and the Grignard compound formed is hydrolysed with a saturated ammonium sulphate solution.  Ethyl-5-methyl-3-acetyl-hex-4-enoate is also prepared by treating isobutylidene acetone with lithiumamide and reacting the lithium derivative formed with bromoacetic acid to give 5-methyl-3-acetyl-hex-4-enoic acid (semicarbazone prepared) which is esterified with ethanol.
Patent GB-877258-A (GB)
Title: Improvements in or relating to dust and fly removal from textile machinery such as ring spinning frames
IPC: D01H11/00
Filed: 1960-01-22
Abstract: 877,258. Cleaning textile spinning &c. machines. JACOBI, E., and BECK, H., [trading as JACOBI & CO. KOMM.-GES., ERNST]. Jan. 22, 1960 No. 2336/60. Class 120(3) Dust and fly-removal apparatus comprises suction and blowing devices which move simultaneously along opposite sides of a spinning frame on guiding means whereby air blown from one device entrains dust and fly which is collected by the suction device. The blowing 7 and suction 8 devices are tubular and are capable of having their functions reversed (as in Fig. 2 not shown), at the end of each cycle or part thereof, over the machines to be cleaned. The devices at each side of the machine each consist of two tubes 18, 17, each tube having therein a hinged flap 24<SP>1</SP> whereby, when the device is blowing, the suction tube is closed and air sucked in through flap 211. Fillers 13, 14 are provided in the devices with access thereto through covers 11, 12 to enable the removal of fly. Both tubes 18 and 17 have openings 22 and 19 which can be divided into slots or louvres (not shown). The lower part of the machine 2 may be cleaned by additional suction devices 27 and 28.
Patent GB-1027968-A (GB)
Title: Anthraquinone dyes and their production
Inventor: GRASER FRITZ
IPC: C09B1/62
Filed: 1965-01-20
Abstract: The invention comprises anthraquinone dyestuffs of the general formula <FORM:1027968/C4-C5/1> in which Y is hydrogen or a group <FORM:1027968/C4-C5/2> where in X is -0-, -S- or -NR-; Y1 is hydrogen, hydroxyl, amino which may be substituted, or when Y is hydrogen, Y1 is a group <FORM:1027968/C4-C5/3> as defined above; R is hydrogen, an aliphatic radical which may be substituted, an aromatic group which may be substituted, or an acyl group, and the rings A, B and C may bear substituent groups othr than sulphonic acid groups. They may be prepared by reacting a compound of general formula <FORM:1027968/C4-C5/4> wherein Z is a hydrogen atom or a radical which can be exchanged for a group <FORM:1027968/C4-C5/5> as defined above and Z1 is hydrogen, hydroxy, amino, substituted amino or when Z is hydrogen Z1 is a group <FORM:1027968/C4-C5/6> as defined above with a compound <FORM:1027968/C4-C5/7> wherein C and X are as defined above in presence of a solvent and an acid binding agent. Any sulphonic acid groups in rings A and B are eliminated by reaction with sodium dithionite and sodium carbonate in aqueous solution. Specified solvents are C1-C4 alcohols, acetone and methylethyl ketone, 2-methoxyethanol and 2 ethoxyethanol.  Examples of acid binding agents are sodium and potassium hydroxides, carbonates and bicarbonates, calcium and magnesium hydroxides, carbonates, trisodium phosphate and alkali metal acetates.  Many examples are given and among the compounds claimed per se are (i) <FORM:1027968/C4-C5/8> (ii) <FORM:1027968/C4-C5/9> (iii) <FORM:1027968/C4-C5/100> (iv) <FORM:1027968/C4-C5/111> (v) <FORM:1027968/C4-C5/122>
Patent GB-112537-A (GB)
Title: Improvements in Radiators or Water Cooling Devices.
Inventor: OATWAY JOHN WILLIAM
IPC: F28D1/03
Filed: 1917-03-31
Abstract: 112,537. Oatway, J. W. March 31, 1917. Plate apparatus.-Relates to a honeycomb radiator built up of pairs of corrugated plates each having the corrugations a, Figs. 1, 4, on one face of circular curvature and with deep ends a<1> flattened at their tops, and the corru-, gations b on the other face formed with tops flattened throughout their length, the ends b<1> of the tops being of the same width as the flat endportions of the corrugations on the other face. The intermediate portions of the corrugations b are of greater width than the end portions, so that, when the plates are assembled, as shown in Fig. 6, the sinuous channels d between the plates are flattened at their sides and offer little resistance to the flow of the cooling-liquid.
Patent GB-922454-A (GB)
Title: Method and apparatus for producing rubber tubing
IPC: B29C48/10
Filed: 1962-01-24
Abstract: 922,454. Extruding rubber tubing. KOLNISCHE GUMMIFADEN-FABRIK. Jan. 24, 1962 [Jan. 24, 1961], No. 2591/62. Class 87(2). A method of producing tubing of circular or only slightly oval cross-section from a material containing over 50% vulcanised rubber comprises extruding the tube 6 from a nozzle 2 and immediately conducting it through a heating chamber 3 on a conveyer belt 4 while maintaining its circular crosssection by keeping a slight gauge pressure in its interior. The tube may then be collected on a second conveyer 5 and cut into lengths, or coiled up. The pressure in the tube is regulated by passing compressed air through the nozzle 2. The tube is either pinched between rollers after vulcanising, or left open when air is blown through it to maintain the pressure.
Patent GB-687694-A (GB)
Title: Extraction of tin from ores and concentrates
IPC: C22B25/02
Filed: 1951-02-02
Abstract: 687,694. Extracting tin. TRIGGS, W. W. (New Enterprises, Inc.). Feb. 2, 1951, No. 2612/51. Class 82(i). Tin is extracted from ores containing tin oxide and iron oxide by heating the ores to a temperature above 650‹C and below 845 ‹C in a reducing zone while supplying to the zone a gaseous reducing medium containing hydrogen and an amount of water vapour such as to maintain in; the zone at all times a partial pressure of water vapour the ratio of which to the partial pressure of hydrogen lies between curves 1 and 2 on the graph of the Figure, the tin being recovered as metal substantially uncontaminated by metallic iron. The ore may be moved through the reducing zone countercurrent to a flow of the reducing gas.
Patent GB-357914-A (GB)
Title: Baby perambulator
IPC: B62B9/12
Filed: 1931-01-27
Abstract: 357,914. Cots. MENASS•, J., 268, Langen Lohn, Basle, Switzerland. Jan. 27, 1931, No. 2624. Convention date, Dec. 12, 1930. [Class 52 (ii).] A baby carriage is provided with an inner body 2 provided with handles whereby it may be lifted out or serve as a cot.
Patent GB-138163-A (GB)
Title: Improvements in or relating to cases or boxes for holding eggs
IPC: B65D81/07
Filed: 1919-02-03
Abstract: 138,163. Taylor, A. Meddows-. Feb. 3, 1919. Fittings, internal.-A box or case for eggs is provided with slots or grooves in which are placed frames C carrying spirally-coiled wire springs A forming a number of complete and separate eggshaped compartments. The eggs are inserted in the compartments through the two widest coils. The springs are supported by wire stays B.
Patent GB-625249-A (GB)
Title: Improvements in and relating to pressure gauges
IPC: G01L9/00
Filed: 1945-02-02
Abstract: 625,249. Measuring fluid pressure electrically. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 2, 1945, No. 2638. Convention date, Feb. 7, 1944. [Class 40 (i)] A gauge for measuring liquid or gaseous pressures comprises a casing 10 having a flexible pressure diaphragm 17, a second adjustable diaphragm 23, a magnetostriction element 26 compressed between the centres of the diaphragms, an A.C. coil 28 surrounding the element 26 for producing flux therein, and electrical measuring means associated with the coil and responsive to changes in the permeability of the element 26 due to different degrees of compression thereof. The casing 10 is circular, screw-threaded to receive a cap 11 at one end and a plug 12 at the other, and is provided with a hole 14 for a pin-type wrench. The plug 12 is flattened at 15 to receive a wrench and has a central threaded orifice 16 into which the pipe communicating with the pressure to be measured is screwed. When liquid pressure is to be measured, a screw plug 20 is removed to allow entrapped air to escape through a vent 19. The diaphragm 23 which may be perforated or not gas-tight, is retained in position by an adjustable seat 24 comprising a nut screwed into the casing. The element 26 is a tube of magnetic material fitting into a conical depression in the diaphragm 17 and a hole in the diaphragm 23. The coil 28 is retained against a shoulder 29 in the casing 10 by a spring ring 30 snapped into a depression 31. The coil 28 is in series with one half of a transformer winding 33 in an A.C. bridge, and a compensating gauge unit 34 is in series with the other half of the winding 33, the bridge being energized in parallel from an A.C. source 35. The measuring circuit includes band-pass filters 37, 38, an amplifier 39, and indicating and recording instruments 40, 41. The instrument 41 may be an oscillograph. The diaphragms 17, 23 are selected in accordance with the pressure to be measured, and are matched to ensure that the element 26 is not subjected to any part of the acceleration forces due to a rapidly varying pressure deflecting the diaphragms. Differential pressures may be measured by supplying a second pressure at 21.
Patent GB-1105224-A (GB)
Title: Process for preparing aminophenanthrene compounds and a novel aminophenanthrene compound
IPC: C07D307/77
Filed: 1966-01-20
Abstract: Compounds of the general formula <FORM:1105224/C2/1> (wherein R represents hydrogen or methyl, Z represents dimethylamino, 1-pyrrolidinyl, piperidino or morpholino and Et represents ethyl) and their acid addition and quaternary ammonium salts are prepared by (a) subjecting a compound of the formula <FORM:1105224/C2/2> to catalytic reductive amination with HZ or (b)-when R represents hydrogen-(i) reacting 4,5a  - epoxy - 13b  - ethyl - 3 - methoxy - 6 - oxo-octahydrophenanthrene with HZ and catalytically reducing the product of the formula <FORM:1105224/C2/3> or (ii) subjecting 4,5a -epoxy-13b -ethyl-3-methoxy -6-oxo-octahydrophenanthrene to catalytic reductive amination with HZ, optionally followed in each case by acid addition or quaternary ammonium salt formation.  The compounds have hypotensive activity.