baber/WOPTO huggingface dataset:
Patent GB-672022-A (GB)
Title: Gear finishing tool
IPC: B23F21/28
Filed: 1950-01-06
Abstract: 672,022. Making milling-cutters; gearcutting. NATIONAL BROACH & MACHINE CO. Jan. 6, 1950 [Feb. 21, 1949], No. 364/50. Classes 83 (ii) and 83 (iii). A conical gear-finishing tool 10 having a cone angle of less than 30 degrees comprises teeth 12 of generated involute form having different leads on opposite sides and having an operating pressure angle at their large ends greater than that at their small ends, the teeth being modified with a hollow lead, as described in Specification 635,020. The cutter, which is used in practising the method of Specification 622,744, is cut by traversing a hob 15 as shown. Clearance channels 22 are then drilled, the teeth are grooved and the cutter hardened. The teeth are then ground by rolling the cutter in contact with the modified face of a grinding- wheel. Plain helical spur gears may be shaved or, for producing clutch teeth, a tapered gear may be shaved by the same cutter. The cone angle is preferably 15 degrees.
Patent GB-508862-A (GB)
Title: Means primarily intended for preventing condensation on windows, but applicable also for keeping them cool in summer and for preventing dust settling thereon
IPC: E06B7/12
Filed: 1938-01-06
Abstract: 508,862. Preventing condensation on windows ; conditioning air. CLARKE, F. E. Jan. 6, 1938, No. 404. [Classes 20 (iii) and 137) Apparatus for removing condensed moisture and dust from windows, and applicable also for air conditioning, comprises a horizontal perforated telescopic tube 7, 8, which is reciprocated along a vertical standard 1, heated or unheated air being supplied to the tube from the standard 1 by a fan 18. As shown in Fig. 2, the tube 7 is connected by a short tube 4 passing through a slot 5 in the standard 1, to a piston 3 mounted on a screwed rod 15 which is rotated by an electric motor 20. A flexible strip 11 fed from a drum 13 is attached to the piston 3, and is movable in channels 10 at the edges of the slot 5, for the purpose of preventing leakage of air from the slot. The motor shaft carries two pulleys 21, 22, respectively connected with pulleys 24. 25 on the shaft 15 by an open belt 26 and a crossed belt 27. A clutch 28 is mounted between the pulleys 24, 25, and is operated by a lever 29 actuated by an electromagnet 30. The latter is energized by a switch 31a operated by trips 33, 34 at the top and bottom of the standard 1. The air may be heated by an electrical resistance 31. According to the Provisional Specification, the ends of the perforated tube engage vertical screw-threaded rods which at their ends carry bevel wheels meshing with bevel pinions on a horizontal shaft driven by an electric motor through a reduction and reverse gear, by means of which the requisite vertical reciprocatory movement is imparted to the tube. Air is delivered from a fan to the perforated tube by means of a flexible tube.
Patent GB-288129-A (GB)
Title: Process for the manufacture of a difficultly water-soluble glucoside of adonis vernalis
IPC: C07G3/00
Filed: 1928-01-05
Abstract: 288,129. Hoffmann-La Roche & Co. Akt.-Ges., F. April 1, 1927, [Convention date]. Addition to 265,941. Glucosides.-In addition to the easily soluble glucoside obtained according to the process of the parent Specification by treating extracts of Adonis Vernalis with adsorbents, a difficulty soluble glucoside is also simultaneously adsorbed. It remains as an oil when the residue obtained by evaporating to dryness the solution of the glucosides extracted from the adsorbent is washed with ether to remove fats and with water to remove the water-soluble glucoside. In an example, an alcoholic extract of the drug is treated with adsorbent charcoal. After drying, the latter is extracted with hot chloroform and the solution evaporated to dryness. The easily soluble glucoside and the fats are removed, and the remaining glucoside is worked up bv dissolving it in chloroform and pouring it into petroleum ether, when it is obtained in solid form. It is purified by treatment with lead acetate in alcoholic solution, filtering and evaporating the solution in vacuo. By dissolving in chloroform and re-precipitating with petroleum ether the pure drug is obtained.
Patent GB-819086-A (GB)
Title: Bits for cutting tools
IPC: B23P15/30
Filed: 1957-01-04
Abstract: 819,086. Powder metallurgy. STORA KOPPARBERGS BERGSLAGS A. B. Jan. 4, 1957 [Nov. 26, 1956], No. 426/57. Class 82(1) [Also in Group XXII] A method of producing a bit for cutting tools comprises forming a first mass consisting essentially of one or more powdered metal oxides of the ceramic type and a second mass of one or more powdered metals, the materials being such that both masses can be sintered at the same temperature; placing the masses together so that there is a surface of contact between them while each mass has at least one free surface; and heating the masses while compressing them together to such temperature that the masses are individually sintered and also sintered together, the sintered first mass constituting a cutting part and the second mass a brazing part which may be affixed to a support by brazing. An intermediate mass comprising a mixture of powdered ceramic oxide and e.g. 40-60 per cent powdered metal, sinterable at the same temperature as the first and second masses, may be used. In an example, a cutting layer 1 comprises by weight 90 per cent alumina, 5 per cent quartz, 5 per cent magnesium oxide; an intermediate layer 2 comprises 50 per cent W, 12 per cent Co, 34 per cent alumina, 2 per cent quartz, 2 per cent magnesium oxide; and the metal or brazing layer 3 comprises 80 per cent W, 20 per cent Co. The whole was sintered under pressure at approximately 1600‹C. Brazing to a supporting element may be by a normal method using e.g. ,Cu-Ag solder; whilst the metal mixture may include Ni and/or Fe besides or in addition to Co.
Patent GB-905198-A (GB)
Title: New n-heterocyclic compounds and processes for preparing them
Filed: 1960-01-06
Abstract: The invention comprises 5-dibenzo [b.?] azepines and their 10,11-dihydro-derivatives, of the general formula <FORM:0905198/IV (b)/1> (wherein X represents -CH = CH- or -CH2-CH2- and R represents a low molecular (i.e. C1-4) alkyl radical), as well as the acid addition salts thereof and the quaternary ammonium compounds formed by addition of reactive esters of aliphatic or araliphatic alcohols, and the preparation of compounds I by reacting a reactive ester of a compound of the general formula <FORM:0905198/IV (b)/2> with a secondary amine R-NH-cyclopentyl.  The products, which are useful as antiallergics, anticonvulsants or sedatives, for the treatment of mental disorders or for potentiating other pharmaceuticals (e.g., anaesthetics), may also be made by reacting, in the presence of a condensing agent, a compound of the general formula <FORM:0905198/IV (b)/3> with a reactive ester of a compound of the general formula HO-CH2-CH3-CH2-N(R)-cyclopentyl, and, if desired, converting the product into an acid addition of quaternary ammonium salt, or by heating a compound of the general formula <FORM:0905198/IV (b)/4> until one molecular proportion of carbon dioxide is split off, or by treating a compound of the general formula <FORM:0905198/IV (b)/5> (wherein one of the symbols R1 and R11 represents hydrogen and the other a cyclopentyl radical or a low molecular alkyl radical) with a low molecular alkylating agent or a cyclopentylating agent respectively, or by reacting a compound of the general formula <FORM:0905198/IV (b)/6> (wherein Z and R111 represent trimethylene and R respectively except that in at least one of them at least one methylene group attached to nitrogen is replaced by a carbonyl group) with an alkali metal-earth metal hydride.  Alcohols of the second general formula above are prepared by reacting an alkali metal derivative of a compound of the third general formula above with propylene oxide, and are converted into reactive esters by treatment with inorganic acid halides, methanesulphonyl halides or arylsulphonyl halides.  Reactive esters are also obtainable by reacting the said alkali metal derivatives with a ,g -dihalopropanes preferably having two different halogen atoms, or with halopropyl esters of arylsulphonic acids.
Patent GB-230211-A (GB)
Title: Improvements in hot water containers for use on the face
IPC: A61F7/02
Filed: 1924-01-07
Abstract: 230,211. Pauley, C. Jan. 7, 1924. Heating appliances. - A device for subjecting the face to heat consists of a double - walled mask 2 adapted to be filled with hot water and having openings 3, 5, 4 for the eyes, nose and mouth. The inner wall of the mask may be made of soft rubber, the outer wall being of stiffer material, and the walls may be connected together round the openings by vulcanization. The edges of the mask are reinforced by a band 6 having eyelets 7 to receive securing cords 8.
Patent GB-1249184-A (GB)
Title: Rod machine for producing rod-like tobacco articles such as cigarettes
Inventor: GOMANN JURGEN
IPC: A24C5/39
Filed: 1969-01-03
Abstract: 1,249,184. Cigarette-making machines. HAUNI-WERKE KORBER & CO., K.G. 3 Jan., 1969 [10 Feb., 1968], No. 492/69. Heading A2C. A machine for producing cigarettes or other rod-like tobacco articles comprises a motor driven primary shaft adapted to drive those components of the machine which require to operate at a relatively high speed, and a main shaft driven from said primary shaft at a speed substantially lower than the speed of the primary shaft, the main shaft being coupled to various parts of the machine which require to be driven at relatively low speeds. A machine of this type is shown in the Figure wherein an electric driving motor 61 drives a primary shaft 68 which shaft directly drives the rotary cutter 42 printing device 7, trimming cutter 26, and accelerator wheel 46. The main machine shaft 82 is driven by the primary shaft through a reduction drive 81. This main shaft drives the other components of the machine in the tobacco distributor 1, tobacco rod-forming means 2, tobacco stream conveyor 5, cigarette rod-forming means 3 and take-off device 6.
Patent GB-213032-A (GB)
Title: Improvements in packing devices for rotating shafts
IPC: F16J15/36
Filed: 1923-01-06
Abstract: 213,032. Plummer, W. E., Kermode, W. M., Plummer, C. St. C., and Howard, J. Jan. 6, 1923. Stuffing-boxes; substitutes for.-In a packing for a centrifugal-pump or other rotating shaft of the type in which a ring 8 carried by a diaphragm 11 rubs against, a stuffing-box 3 rotating with the shaft, the diaphragm is acted on by springs 16. The diaphragm is secured to the pump casing by a ring 9 and is secured to the ring 8 by a ring 13 and set screws. The springs 16 are housed in pockets in a bush 17. The stuffing-box 3 contains packing compressed by a gland 4 secured to the box 3 by bolts 6. The stuffing-box and the gland are in halves clamped to the shaft by set screws 7.
Patent GB-177877-A (GB)
Title: Improvements relating to the wheels of tractors
IPC: B60B15/12
Filed: 1921-01-06
Abstract: 177,877. Stredwick, E. Jan. 6, 1921. Slipping-preventing attachments to wheels. -In a tractor wheel having grippers which are protruded and withdrawn by rotation of the wheel, a scraper is provided at the part of the rim at which the grippers are withdrawn. Grippers a, having their outer ends passing through holes in the rim b are held by knuckle joints a<1> to a member 9 which rotates upon an eccentrically mounted pin j. The knuckle joints a<1> are prevented from moving axially by annular flanges. The pin i is mounted on an arm m which can be rotated so as to cause the grippers to protrude at the top of the wheel for use on hard ground. A scraper d is detachably fitted to the frame of the machine so that it can be removed when the grippers protrude at the top of the wheel.
Patent GB-1047041-A (GB)
Title: Separation of polymers from slurries thereof
IPC: C08F6/12
Filed: 1964-01-06
Abstract: 1,047,041. Drying apparatus. MONSANTO CO. Jan. 6, 1964 [Jan. 7, 1963], No. 578/64. Heading F4G. [Also in Division B1] Solid material remaining on a filter medium 3 after filtrate has drained therethrough is firstly steam stripped by pressurized steam entering through inlet 5 and is then dried by a vacuum applied via outlet 8. Alternatively hot inert gases may be used to dry the solid. The solid is mechanically agitated by device 6 during the filtering, stripping and drying steps.
Patent GB-331558-A (GB)
Title: Improvements in the manufacture and production of valuable liquid hydrocarbons and hydrocarbon derivatives
IPC: C10G1/08
Filed: 1929-01-07
Abstract: 331,558. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 7, 1929. Hydrogenation, destructive.-Distillable carbonaceous materials are destructively hydrogenated under a pressure of at least 20 atmospheres in the presence ofa catalyst containing at least three different constituents, one being an oxide of a metal of group 2 of the periodic system, or a metal of group 3 or a compound thereof, which is solid under the conditions of working, and the other two being oxides, hydroxides, or sulphides of different metals of the class consisting of cobalt, nickel, and the metals of groups 5 and 6. In examples (1) hydrogen containing 2 per cent by volume of a vaporous gas oil is passed at 460‹C and at a pressure, of 200 atmospheres over a catalyst containing 90 parts of molybdic acid, 10 parts of chromic acid, and 20 parts of kaolin; the product contains 90 per cent of benzines boiling below 180‹ C.; (2) an American crude oil, of which 80 per cent boils above 325‹ C., is treated in the liquid phase at 460‹C. and 200 atmospheres with hydrogen in the presence ,of a catalyst containing molecular proportions of tungstic acid chromic acid, manganese carbonate, and zinc oxide; the catalyst is built into the reaction chamber and is kept immersed in oil; the product contains only 5-10 per cent boiling above 325‹ C.; (3) pure precipitated nickel sulphide is mixed with an equal amount of chromic acid and Florida earth, made into a paste, moulded and dried and reduced with hydrogen; hydrogen and a vaporised gas oil are then passed over it at 490-500‹ C. and 200 atmospheres; a 50 per cent yield of benzine boiling below 180‹ C. is obtained; (4) the catalyst of example (1) is used for the vapour phase treatment of a middle oil, obtained by destructive hydrogenation of low temperature carbonisation tar, with' hydrogen at 200 atmospheres and 500‹ C.; the product is an anti-knock motor fuel, Specifications 258,272, 275;663, 276,001, 283,600, 285,923,- 286,678, 286,679, 295,947, 300,703, 307,946, and 327,194 are referred to.
Patent GB-834284-A (GB)
Title: Improvements in or relating to coating articles with plastic materials
Inventor: FERGUS JAMES LATTO
IPC: B05D1/24
Filed: 1957-01-07
Abstract: Heated articles are coated by dipping into a bed of granular synthetic plastic material which has been fluidized by an ascending stream of gas, some or all of the gas stream being subjected to continuous pulsations.  The pulsations may have a frequency between 1 and 200 c/s.  The plastic may be thermosetting but is preferably thermoplastic such as polythene.  The pulsations may be controlled by a valve actuated by a cam driven through a variablespeed gear; the valve may be by-passed so that only part of the gas stream is pulsated.  Reference has been directed by the Comptroller to Specification 759,214.
Patent GB-959982-A (GB)
Title: Apparatus for reversing the upper and lower surfaces of a conveyor belt
IPC: B65G15/60
Filed: 1961-01-06
Abstract: 959,982. Endless conveyers. RHEINISCHE BRAUNKOHLENWERKE A.G. Jan. 6, 1961 [Jan. 9, 1960], No. 682/61. Heading B8A. Rollers 18 for reversing the upper and lower surfaces of the lower run of a conveyer belt are carried by holders 19 which are adjustably clamped on bars 20. Supports 21 for the bars are vertically adjustable and the effective length of the supports may be increased by intermediate members 23. The plane of the belt is turned through 180 degrees between horizontal rollers 14, 15, and the belt is turned back through 180 degrees by a similar series of rollers 18 provided at the other end of the run of the belt. The arrangement causes the loadcarrying surface of the belt to face upwardly between the turnover regions of the belt's lower run, and fouling by material which would be detached from the downwardly facing surface of the belt is avoided.
Patent GB-164287-A (GB)
Title: Improvements in return pipe connexions for hot-water tanks
IPC: F24H9/12
Filed: 1921-01-07
Abstract: 164,287. Watson, A. R. Jan. 7, 1921. Heating water.-The return pipe to the boiler in a hot water cylinder is extended by a fitting b to the top of the cylinder. Perforations g thereat communicate with a concentric tube c which is open only at the bottom. Already warmed water from the top of the tank passing to the boiler by a short depending tube a entrains a certain proportion of cold water from the base of the tank which passes by the opening i annulus f, apertures g and space e. In the modification shown in Fig. 4, the innermost tube a is replaced by a partition and the passage r for cold water is on one side only. In a further modification, the passages r, s are constituted by a separate bent tube of #-shape.
Patent GB-1521951-A (GB)
Title: Method and apparatus for detecting defective operation of spinning assemblies of open-end spinning machines
IPC: D01H4/44
Filed: 1977-01-10
Abstract: 1521951 Monitoring spun yarn SCHUBERT & SALZER MASCHINENFABRIK AG 10 Jan 1977 [13 Feb 1976] 00701/77 Heading G1N Apparatus for monitoring a yarn produced by a spinning machine comprises means for counting the number of slubs per unit length in the yarn. A signal corresponding to the diameter of the yarn, produced by transducer 1, Fig. 1, is amplified at 3 and differentiated at 4, the slope being compared at 5 with a pre-set value. Steep-sided pulses are fed through a monostable multi-vibrator 6 to an integrator 7 whose output is compared at 8 with a reference value, to operate a cut-out 9 if the number of slubs per unit length is excessive. The gain of amplifier 3 and the reference value in comparator 8 are controlled either by a tachogenerator 2 measuring the yarn draw-off speed, or by a signal representing the average yarn thickness determined at 10.
Patent GB-1170513-A (GB)
Title: Pneumatic Tyres
IPC: B60C9/04
Filed: 1967-01-05
Abstract: 1,170,513. Tyres. CONTINENTAL GUMMIWERKE A.G. 5 Jan., 1967 [19 Jan., 1966], No. 718/67. Heading B7C. A green tyre of hollow cylindrical form is characterized by the arrangement of its reinforcing cords, the cords of a breaker layer of the tyre being cross-laid with respect to the cords of a carcase ply and arranged at an angle with respect to the circumferential direction of the tyre which is less than the angle at which the cords of the carcase ply are arranged with respect thereto, see Fig. 4. After shaping to the toroidal form the cords of the carcase ply are orientated such that those portions in the sidewalls of the tyre are at substantially right angles to the circumferential direction of the tyre. Those portions of the cords of the carcase ply underneath the breaker layer, and the cords of the breaker layer, also undergo rearrangement as shown in Fig. 5.
Patent GB-984471-A (GB)
Title: Anthranilic acid esters and methods for producing the same
Filed: 1962-01-08
Abstract: The invention comprises compounds of the general formula <FORM:0984471/C2/1> (wherein Y represents a straight or branched C2-4 alkylene radical, R1 and R2 are the same or different and represent methyl or ethyl groups, and R3 and R4 are the same or different and represent halogen atoms or methyl groups) and pharmaceutically-acceptable acid addition salts thereof, pharmaceutical preparations containing them, and their preparation by esterifying the parent acid or a reactive derivative thereof with the parent alcohol or a reactive derivative thereof, optionally followed by acid addition salt formation.  The acid starting materials are prepared by heating potassium o-bromobenzoate with the appropriate 2,3-disubstituted aniline and N-ethylmorpholine in the presence of cupric bromide and in diethylene glycol dimethyl ether; they are converted to the corresponding acid halides by standard methods.  The compounds of the invention possess anti-inflammatory activity, and may be administered orally in the form of pharmaceutical preparations (e.g. tablets, dragees, capsules, powders, suspensions and solutions) containing them in association with a carrier or diluent. Specification 935,405 is referred to.
Patent GB-1438091-A (GB)
Title: Process for the production of alloy powders from rare earth metals and cobalt
IPC: C22C1/04
Filed: 1974-01-07
Abstract: 1438091 Vacuum furnace TH GOLDSCHMIDT AG 7 Jan 1974 [26 Jan 1973] 00725/74 Heading F4B [Also in Division C7] A furnace contains a reaction chamber 1 holding two reaction vessels 2, 3, the chamber 1 being evacuated by pipe 4 to a vacuum of #10<SP>-2</SP> mm. Hg, and the furnace space outside the chamber being evacuated to the same pressure by means not shown. When the desired pressure is reached, the vessels 2, 3 are heated independently by coils 5, 6 respectively for the reaction between the contents of the vessels to occur. The furnace is lined with magnesite bricks 7.
Patent GB-174590-A (GB)
Title: Improvements in disintegrators
IPC: B02C13/22
Filed: 1922-01-10
Abstract: 174,590. Coppens, A. J. G. Jan. 25, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Impact pulverizers.-The two grinding-discs of a central-feed disintegrator are provided on their working faces with concentric rows of projections so disposed that the circular rows of projections on one disc pass between those on the other disc, the circumferential length of the gaps between the projections in successive rows increasing outwardly. As shown, the stationary disc 4 and revolving disc 5 are dished on their working faces, and the projections 8, 9 and the gaps between them are disposed in radial lines. The material is fed by a pipe 7 into the central pocket between the discs, and the reduced material is discharged by a pipe 10. The distribution of the projections may be different on the two discs, and greater clearance may be provided between lateral faces of the circular webs near the centre than near the periphery so as to obtain a gradually increasing squeezing action. The webs may be tapered, and the top faces of the projections on one disc may sweep with only very little clearance along the bottoms of the circular grooves in the other disc.
Patent GB-1339632-A (GB)
Title: Vulcanization of ethylene-propylene terpolymers using dithio phosphate ester derivatives
IPC: C08K5/5398
Filed: 1971-01-07
Abstract: 1339632 Vulcanizing olefin terpolymer rubbers BAYER AG 7 Jan 1971 [13 Jan 1970] 781/71 Heading C3P [Also in Division C2] The vulcanization of an ethylene-propylene terpolymer (EPDM rubber) using sulphur or a sulphur-donor is effected in the presence of a vulcanization accelerator which is an S,S<SP>1</SP>- carbonyl bis-dithio-phosphate diester of the formula wherein R is a C 1 -C 6  alkyl radical which may be substituted by a C 1 -C 4  alkoxy radical, and a thiazole type accelerator, e.g. 2-mercaptobenzothiazole, dibenzothiazyl disulphide or the zinc salt of 2-mercaptobenzothiazole. A thiuramic or dithiocarbamate accelerator and/or a thiourea may also be present. The preferred dithiophosphate diester derivatives (I) are those in which each of the R radicals is n-butyl or isobutyl respectively. The vulcanization may be effected in conventional manner generally at 120-300 C. and the EPDM rubbers may also contain the usual fillers and other additives, e.g. carbon black, an aliphatic mineral oil, zinc oxide and stearic acid. Specified EPDM rubbers are those containing dicyclopentadiene and ethylidene norbornene respectively as the diene component.