baber/WOPTO huggingface dataset:
Patent GB-278187-A (GB)
Title: Improvements in or relating to lock-nuts
IPC: F16B39/286
Filed: 1926-10-16
Abstract: 278,187. Wood, H. S., and Rudge- Whitworth, Ltd. Oct. 16, 1926. Locking nuts.-A nut has an extension b which is slotted to form a number of tongues b<5> which can be bent over to engage in a slot or slots a<4> in a bolt, the tongues and slots being so arranged that a number of locking positions equal to the product of the numbers of the tongues and slots is obtained. The device is described in its application as means for securing a bearing ring c to a shaft by means of a split threaded sleeve a. The tongues may be formed as shown in Fig. 6 and these are bent down to engage ratchet teeth on the threaded sleeve.
Patent GB-281610-A (GB)
Title: An improved process for the production of high per cent calcium cyanamide or magnesium cyanamide or mixtures thereof
IPC: C01C3/16
Filed: 1927-09-30
Abstract: 281,610. Caro, N., and Frank, A. R. Dec. 2, 1926, [Convention date]. Cyanamides. - In preparing calcium or magnesium cyanamides as described in Specifications 279,419 and 279,811, ammonia gas is passed over the heated carbonate at a rate of 500-5000 cub. cm. for each cub. cm. of charge per hour. At higher velocities, lower temperatures may be made use of. The carbonate may be admixed with the substances mentioned in Specification 279,420.
Patent GB-835390-A (GB)
Title: New orally-effective antidiabetic compounds
IPC: C07C311/54
Filed: 1958-08-12
Abstract: The invention comprises metanilyl ureas of the formula <FORM:0835390/IV (b)/1> wherein R is an alkyl or cycloalkyl radical, e.g. n-butyl, 2-pentyl or cyclohexyl, and their preparation by the following methods: (a) treating a benzene sulphonamide of the formula <FORM:0835390/IV (b)/2> or an alkali-metal salt thereof, in which W is a nitro or acylamino group with a carbamoyl chloride Cl-CO-NHR and W is then converted into an amino group by reduction or hydrolysis; (b) reacting (I) or its alkali-metal salt with an isocyanate RNCO or a compound which is converted to such an isocyanate under the reaction conditions, and subsequently converting W into an amino group; (c) reacting a benzene sulphonyl isocyanate <FORM:0835390/IV (b)/3> with an amine RNH2 and then converting W into an amino group; (d) reacting a compound which is converted into the sulphonyl isocyanate (II) under the reaction conditions such as a sulphonyl urethane or sulphonyl urea, especially a bis-sulphonyl urea, e.g. di-(acetylmetanilyl)-urea with an amine RNH2, the amine being preferably present at the commencement of the reaction to react with the isocyanate as soon as it is formed, and then converting W into an amino group; (e) reacting a benzenesulphonyl chloride, meta-substituted by the group W, with an isourea alkyl ether H2N C(OR11)NR wherein R11 is an alkyl radical, decomposing the resulting metanilyl isourea with an hydrogen halide and then converting W into an amino group; (f) converting a benzenesulphonyl guanidine W.C6H4.SO2.NH C( : NH).NHR into the corresponding sulphonyl urea by alkaline hydrolysis and then converting W into an amino group, and (g) converting a thiourea W.C6H4.SO2.NH.CS.NHR into the corresponding sulphonyl urea by oxidation.  In the above process, benzene sulphinyl or sulphenyl compounds may be used in place of the benzenesulphonyl compounds and the resultant sulphinyl or sulphenyl ureas may be oxidized to the benzenesulphonyl compounds.  N1 - Di - acetylmetanilyl - N2 - n - butyl urea is made by treating di-(acetylmetanilyl)-urea (obtained from acetyl metanilic amide and phosgene) with n-butylamine and heating the resulting n-butylamine salt.  N1 - Acetylmetanilyl - N2 - cyclohexyl urea is made by treating acetyl metanilic amide with ethyl chloroformate and treating the resulting ethyl acetylmetanilyl-carbamate with cyclohexylamine. N1 - (m - nitrobenzene - sulphonyl) - N2 - (n-butyl)-urea is made by treating m-nitrobenzene sulphonamide with n-butyl isocyanate.
Patent GB-407714-A (GB)
Title: Improvements in and relating to electric converting apparatus
IPC: H02M7/00
Filed: 1932-09-19
Abstract: 407,714. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A. ; 1, Washington Avenue, Schenectady, New York, U.S.A.) Sept. 19, 1932, No. 26028. Convention date, Sept. 19, 1931. [Class 38 (ii).] In a rectifier or inverter system the D.C. circuit is bridged by two parallel paths, each path including a pair of valves 12, 13 and an inductive winding, the A.C. network being connected between centre-taps of the inductive windings. These inductive windings are coupled, but have a large leakage reactance so as to give protection against short circuit and back-ignition. Grid control renders the valves 12, 15 and 13, 14 alternatively conductive so that A.C. flows in the primary winding of the transformer 20. The windings 16, 17 are arranged on a core 18 having a third limb with an air-gap 19. During normal operation the currents flowing in the windings will produce fluxes in the core having the same direction so that the arrangement will act as a choke. If back-ignition occurs in one of the valves, the A.C. circuit will be short circuited, the short circuit current being limited by the leakage reactance of the arrangement since currents flow in the windings 16, 17 producing fluxes in opposition. In a modification two A.C. circuits are supplied. Reference has been directed by the Comptroller to Specifications 144,720, [Class 38 (ii)], and 374,012.
Patent GB-1001710-A (GB)
Title: Synthesis of steroids
IPC: C07J75/00
Filed: 1962-07-09
Abstract: The invention comprises steroids of the general formulae <FORM:1001710/C2/1> wherein R represents hydrogen, R1 represents b -hydroxy or R and R1 together represent keto, X and X1 each represent hydrogen, halogen or alkyl (at least one of X and X1 must be hydrogen or alkyl), Y represents hydrogen or methyl, and Y1 represents hydrogen, halogen or alkyl, B represents a group of the formula <FORM:1001710/C2/2> wherein Z represents hydrogen, halogen, hydroxy or acyloxy, P represents hydrogen, alkyl, haloalkyl, carboxyalkyl (or a salt or ester thereof), monocyclic cycloalkyl, monocyclic aryl, monocyclic aryl-alkyl, monocyclic heterocyclic, or monocyclic heterocyclic alkyl, Q represents alkyl, haloalkyl, carboxyalkyl (or a salt or ester thereof), monocyclic cycloalkyl, monocyclic aryl, monocyclic aryl-alkyl, monocyclic heterocyclic or monocyclic heterocyclic-alkyl, or P and Q together with the carbon atom to which they are joined represent a cycloalkyl or saturated monocyclic heterocyclic radical, and the preparation thereof by reducing the corresponding 4-pregnenes, 1,4-pregnadienes or 1,4,6-pregnatrienes with hydrogen in the presence of a hydrogenation catalyst (all alkyl groups contain less than 8 carbon atoms and the aryl and heterocyclic groups may be substituted, for example by halogen, alkoxy, hydroxy, alkyl, nitro, acylamino, and cyano substituents).  The 21-esters may be derived from phosphoric acid and mono- and di-carboxylic acids (in the latter case salts may be formed with the free carboxylic group and inorganic bases such as ammonium hydroxide, alkali metal and alkaline earth metal hydroxides, and organic gases such as dialkyl amines and heterocyclic amines-particularly pyridine). The compounds of the first formula above in which B represents <FORM:1001710/C2/3> may also be prepared by treating the corresponding 16a ,17a -dihydroxy compounds with the required aldehydes and ketones of the formula <FORM:1001710/C2/4> wherein P and Q have the above significance. The 21-ester group may be formed following the processes detailed above.
Patent GB-970583-A (GB)
Title: 2,4-diaminopyrido[2,3-d]pyrimidines
IPC: C07D471/04
Filed: 1961-07-19
Abstract: The invention comprises compounds of the general formula <FORM:0970583/C1/1> and their acid addition salts, in which R is an alkyl group, or a phenyl or phenalkyl group optionally substituted in the ring by alkyl, or alkoxy groups or halogen atoms, and the preparation thereof by reacting a compound of the formula ABN.CH:CR.CHO with a halogenating agent and the halogenated compound with 2, 4, 6-triamino pyridine, where ABN is a tertiary amino group and R is as defined above.  Pharmaceutical compositions comprise a compound of the invention and a pharmaceutical carrier. The composition may be in the form of tablets, capsules, cachets, ampoules, suppositories, powders, granules, solutions or suspensions in aqueous, non-aqueous and emulsified liquids and ointments.  The compounds are antibacterial agents.
Patent GB-638678-A (GB)
Title: Improvements in or relating to insecticidal compositions
Filed: 1947-09-30
Abstract: Polychloro branched chain hydrocarbons containing 60-80 per cent chlorine and having at least one alkyl radical attached to a straight chain of 4-6 carbon atoms and a total number of carbon atoms of at least six are prepared by the chlorination of corresponding hydrocarbons, preferably in the presence of solvents such as chloroform, carbon tetrachloride and pentachloroethane, and ultra-violet light.  Examples relate to the chlorination of 2,4,4-trimethylpentene-2, 2,3-dimethylpentane, 2,2-dimethylbutane, 3 - methylpentane, 2,2,5 - trimethylhexane, 2,3 - dimethylbutane, 2,4 - dimethylpentane and 2,4,4 - trimethyl - 3 - tert. - butylpentene-2.ALSO:An insecticidal composition comprises a polychloro branched-chain hydrocarbon containing 60-80 per cent chlorine and having at least one alkyl radical attached to a straight chain of 4-6 carbon atoms and a total number of carbon atoms in the molecule of at least six, and an added inert diluent.  Specified compounds are polychloro-2,2,4-trimethylpentanes, -2,3-dimethylpentanes, -2,2-dimethylbutanes, -2,3-dimethylbutanes, -3-methylpentanes, -2,4-dimethylpentanes, -2,2,4-trimethyl-3-tert-butylpentanes and -2,2,5-trimethylhexanes. The alkyl radicals may also be ethyl or isopropyl.  The diluents specified are deodorized kerosene, water in which the compound is dispersed, powdered carbon, kieselguhr, bentonite or pyrophyllite. Other toxicants such as rotenone, pyrethrum, b -butoxy-b 1 thiocyanoethyl ester, isobornyl thiocyanoacetate, fenchyl thiocyanoacetate and isobornyl a -thiocyanopropionate may be added.
Patent GB-1134427-A (GB)
Title: Boring tools and machines equipped therewith
IPC: E21D20/00
Filed: 1966-06-14
Abstract: 1,134,427. Machine tool details. SOC. D'ETUDE ET DE CONSTRUCTION DE MACHINES POUR TOUTES INDUSTRIES, SECOMP. 14 June, 1966 [14 June, 1965], No. 26417/66. Addition to 984,880. Headings B3C and B3N. A drill assembly for use in a drilling and bolting machine for mine galleries of limited height, comprises a sleeve 2, Fig. 4, carrying a drill 4 on rod 3, adapted to be screwed to a boring carriage 14 at 3a. Two longitudinal grooves in the bore of the sleeve terminate in helicoidal portions 13a, 13b, and the rod has two lugs which are located in the grooves. In operation, the lugs are located in portions 13a of the grooves and drive the sleeve 2 and the drill 4. When carriage 14 has arrived at the end of its stroke, rotation of the drill ceases. Sleeve 2 is held, rod 3 is partially rotated to disengage the lugs from portions 13a, and the carriage is retracted through a distance C<SP>1</SP> until the lugs are engaged in portions 13b. The carriage 14 is again fed forwardly, with the sleeve being rotated by the lugs through portions 13b.
Patent GB-1074912-A (GB)
Title: Improvements in the production of elastic filaments of threads
Inventor: NEWEY BERNARD JAMES
IPC: C08L13/02
Filed: 1965-06-23
Abstract: Elastic filaments and threads are produced from composition comprising a latex of an elastomeric copolymer of 50 to 90% conjugated diene hydrocarbon and 50 to 10% of a mixture of monomers containing polar groups and a sulphur vulcanizing medium, to which has been added 20% of natural rubber latex.  The elastomer is preferably a butadiene-acrylo-nitrile-acrylic acid copolymer.  The composition may also contain a polymethyl methacrylate latex.
Patent GB-969818-A (GB)
Title: Improvements in or relating to resilient connections
Inventor: BOSCHI ANTONIO
IPC: B60G11/20
Filed: 1962-07-11
Abstract: 969,818. Resilient joints. SOC. APPLICAZIONI COMMA ANTIVIBRANTI SAGA S.p.A. July 11, 1962, No. 26620/62. Heading F2S. In a resilient joint, e.g. for connecting a shockabsorber 10 to a vehicle body 13, a spigot 11 on the upper end of the shock absorber extends, with radial clearance, through a hole in a metal wall of the body 13 and a pair of flat rubber washers 14, 15 are compressed between the end face 10a of the shock-absorber and the wall 13 and between the latter and a metal washer 16 held by a nut 12 threaded on to the end of the spigot 11. Sets of spaced recesses 32, 33 separated by radial bridge portions, such as shown at 34, Fig. 3, are formed in the end faces of each washer the sets of recesses being located on axially-coinciding pitch circles concentric with the central aperture of the washer. The portion of each end face of the washer which is located between the recesses 32 or 33 is of inwardly-directed frusto-conical form.
Patent GB-291071-A (GB)
Title: Improvements in automatic change speed gears
IPC: B60G11/14
Filed: 1927-10-08
Abstract: 291,071. Aktiebolaget Spontan. May 27, 1927, [Convention date]. Variable-speed gearing.-Relates to speed gearing which varies automatically with the load and comprises an element a to which alternate positive and negative impulses are imparted, the latter being transmitted to a stationary part such as 31, Fig. 1, as described in Specifications 259,975 and 276,853. The invention is characterized in that the planetary, eccentric, or oscillating masses which give rise to these impulses are balanced with respect to the axis of the gearing, and also with respect to a medial plane at right angles to that axis, there being in effect a forked relationship. Thus in the arrangement shown in Figs. 1 and 2, eccentric masses d, d<1> have this double symmetry. are dragged by links f, f<1> attached fly-wheel g so that they slip round on ball bearings upon eccentrics b, c, c<1> which are fast on the sleeve element a. Impulses alternating in direction are imparted to the sleeve a, the rearward impulses being transmitted in a damped form to the abutment 31 throught a mass l and springs as described in Specification 281,983. The mid eccentric b is in one piece and the other c, c<1> is divided and surrounds the first as a fork, to get the lateral symmetry. In an arrangement shown in Figs. 5 and 6, the masses d, d<1> oscillate on levers f, f<1> and are connected respectively to a middle crank p and a divided or forked crank p<1>, p<2>, all carried by the sleeve a. Planetary masses d, d', Fig. 7, have this same forked relation.
Patent GB-953925-A (GB)
Title: Developer for photomechanical printing plates
IPC: G03F7/32
Filed: 1961-07-24
Abstract: 953,925. Diazo type processes. KALLE A.G. July 24, 1961 [July 29, 1960], No. 26737/61. Heading G2C. A developer for diazotype printing plates consists of an aqueous solution of an organic or inorganic alkaline substance containing in addition 0.001% to 0.05% by weight in total of one or more of a dissolved salt, oxide, or hydroxide of beryllium, mercury, calcium, strontium, barium, bismuth, or lanthanum. The alkaline substance may be waterglass, sodium metasilicate, potassium hydroxide, sodium hydroxide di- or tri-ethylamine, ethanolamine, di- or tri-ethanolamine, and the salts of the metals may be halides, nitrates, or salts of aliphatic mono- and poly-carboxylic acids. Complex formers, and water soluble substances of high molecular weight may also be present. It is stated that images obtained when using light-sensitive diazo compounds are more resistant to attack by the solution when the metallic compounds are present.
Patent GB-1274235-A (GB)
Title: High voltage power supply
IPC: H02M3/337
Filed: 1969-05-27
Abstract: 1,274,235. Local viewing. WESTING- HOUSE ELECTRIC CORP. 27 May, 1969 [11 June, 1968], No. 26739/69. Heading H4F. [Also in Divisions G3 and H2]  A high-voltage direct current. supply (e.g. for an image intensifier IA) comprises an oscillator Q4 the adjustable output of which is amplified at Q5 ... Q7 and coupled via a transformer TF3 to a voltage multiplying rectifier. VM. The frequency of the oscillator Q4 is adjustable so as. to tune its output to the resonant frequency of transformer TF3 so as to provide optimum. power transfer therethrough. As described, the. supply mains at T1, T2 is rectified at D1 ... D4 and fed to a voltage regulator comprising transistors Q1 ... Q3 the output of which at T3- supplies oscillator Q4 and amplifier Q5 ... Q7. The voltage multiplier. VM is. a modified Cockcroft Walton circuit and provides 25-30 kV. for the anode screen element. A of the image intensifier IA. The oscillator T4 is tuned by means. of a movable core inductor J4 to the resonant frequency of transformer TF3 (2À5- 4À5 kHz). The.focusing electrodes G1 ... G3 of the intensifier IA are supplied with intermediate voltages from a resistive divider VD. Components VM and VD are encapsulated in a plastics box located adjacent the intensifier IA. An. X-ray image impinging on the photocathode PC is focused to form a smaller visible image on the anode screen A; with degree of reduction being controllable by switch S1 which controls reed relays W1 ... W3. Brightness stabilization may be achieved by optical coupling between the anode screen A and a cadmium sulphide cell.
Patent GB-262562-A (GB)
Title: Improvements relating to intermittent driving-mechanism for feeding continuous strip material
IPC: B65H23/188
Filed: 1925-10-26
Abstract: 262,562. Forgrove Machinery Co., Ltd., and Grover, F. Oct. 26, 1925. Addition to 248,091. Feeding and registering webs.-In the stripfeeding apparatus described in the parent Specification, the feeding-device is adapted to feed a length equal to the distance between two impressions on the strip as well as lengths greater and less than such distance and the member controlled by the electro-magnet or magnet is adapted to assume three positions for coacting with the feed device, thus determining which of the three lengths of strip shall be fed. In one form, Fig. 1, two brushes K<3>, K<4>, spaced apart sufficiently to allow a perforation in the strip to lie between them, are carried by arms K, K<1> lowered between each feeding movement to bring the brushes into contact with the strip. The brushes are in circuit with magnets N, N<1> between which lies one end P of a two-armed lever, the other end P<2> of which coacts with the pawl C operating the feed rollers. An adjustable stop Q on the arm P<2> normally arrests the pawl C before the completion of its idle stroke and the adjustment is such that the length of feed is equal to the normal distance between successive impressions. If the length of strip is less than the normal, the perforations creep forward until the brush K<3> makes contact through a perforation with a stud J thereby exciting the magnet K and bringing the end of the arm P<2> into the path of the pawl. The idle stroke of the pawl is thus terminated earlier and the length of strip fed on the following stroke is shortened. If the length of strip between impressions is greater than normal the perforations lag and the magnet N<1> is excited. The arm P<2> and stop Q are thus moved clear of the pawl which takes its full backward stroke and an increased length of strip is fed on the next operation. In a second form, Fig. 4, similar to that described with reference to Figs 1 to 4 of the parent Specification, the member O which is intercepted by the lever arm M is provided with three notches O<2>, O<1>, O<3> corresponding respectively with the short, long, and normal feeds of the strip. After each actuation of the lever arm M by a magnet N or N', the lever is returned to normal position by a member fixed to the boss C<2> carrying the member O. Instead of providing perforations in the strip, the strip may be provided with a mark or bar of electrically conducting material, or in the case of a strip of electrically conducting material, a mark or bar of insulating material.
Patent GB-1348577-A (GB)
Title: Lawn mower
IPC: A01D34/42
Filed: 1971-04-19
Abstract: 1348577 Lawn mower PHILIPS GLOEILAMPENFABRIEKEN NV 19 April 1971 [17 April 1970] 26907/71 Heading A1F In a lawn mower having a rotary cutter cylinder 1 rotating on an axis 2 fixed to the mower frame and a ledger blade 5 mounted on a support 6 which is pivotally attached to the frame at 7, the support and ledger blade are urged towards the cylinder by a spring 8, this movement being limited by an abutment 9 which maintains a cutting gap between the cylinder and the blade. The blade 5 is pivotally mounted in a groove 13 on the upper side of the support 6 and is urged towards the cylinder by resilient means such as an extruded rubber strip also mounted in the groove 13. The arrangement is such that the pivotal axis of the blade 5 within the groove 13 is on that side of the tangent to the cutter cylinder at the point of contact between the cylinder and blade 5 which is remote from the cylinder, and a line at right angles to the pivotal axis of the blade 5 from this axis to the point 10 of contact between the blade and the cylinder forms an acute angle alpha with the tangent to the cylinder at point 10 as shown. In a modification Figure 3 (not shown) the ledger blade support (6) is rigidly attached to the mower frame and the axle of the cylinder is mounted for pivotal movement, such movement being controlled by a spring (8) and abutment (9).
Patent GB-944370-A (GB)
Title: Production of air-drying matt lacquers from unsaturated polyesters and compounds polymerisable therewith
IPC: C08K3/36
Filed: 1962-07-13
Abstract: 55 to 75 parts by weight of an unsaturated air-drying polyester prepared according to Specification 766,666 from one or more unsaturated dicarboxylic acids and one or more polycyclic polyhydric alcohols, is copolymerized with 25 to 45 parts by weight of a monomeric compound, in the presence of 1 to 5 parts by weight of finely divided silicic acid and 0.05 to 1 part by weight of a wax which is selected from a soft paraffin wax having a melting point of 46 to 54 DEG C. or other waxy substances such as stearates, stearic acid and montan wax, to form an air-drying matt lacquer.  The preferred copolymerizable monomeric compounds are styrene and other ethylene derivatives such as vinyl toluene.  The wax is preferably added in a solvent such as toluene or styrene. The polymerization mixtures contain the conventional catalysts or accelerators cyclohexanone peroxide, cumene hydroperoxide, methyl ethyl ketone peroxide or cobalt naphthenate, preferably used in solution. Specifications 713,332 and 744,468 also are referred to.
Patent GB-936523-A (GB)
Title: Improvements in and relating to the laying of strip material
Inventor: CZERNIN ALEXANDER FRIEDRICH
IPC: B65H45/103
Filed: 1961-07-26
Abstract: 936,523. Folding fabrics. PASOLDS Ltd. April 11, 1962 [July 26, 1961], No. 27037/61. Class 42 (2). A web of textile fabric i<SP>s</SP> laid in pile form upon a table 1 by being drawn from a stationary bulk supply by reciprocation of a carriage in one direction relative to the table 1 and laid upon a supporting surface 3; being caused during reciprocation of the carriage in the other direction to pass over the edge of the supporting surface to be deposited on the table 1; a further fabric length being deposited on top of the previously laid layer during a repeated reciprocation in the first direction accompanied by drawing off and depositing of a further length on the supporting surface 3. Flattened knitted tubular fabric passes over fixed axis rollers 3 mounted on a wall 4 to the carriage mounted on wheels 5 running on a rail 2 provided on the table 1. The fabric passes around rollers 6, 8, 7, 10, 11 and 9 respectively, downwards into a trough 14, over a roller 12 and downwards between rollers 13. The rollers 13, 6, 9, 7, 10 are driven and the rollers 8, 11 may be replaced by bars. In modifications (not shown), the rollers 3 are replaced by a fixed table or by a driven conveyer, the stopping and starting of the latter being synchronized with the carriage movements.