baber/WOPTO huggingface dataset:
Patent GB-810144-A (GB)
Title: A machine for classifying objects according to weight
IPC: B07C5/18
Filed: 1956-08-23
Abstract: 810,144. Weighing apparatus. ENEVOLDSEN, S. V. Aug. 23, 1956 [March 13, 1956], No. 25825/56. Class 143 A machine for classifying objects according to weight has a plurality of receiving stations (not shown) relative to which move weighers 1 each provided with a pan 2 the pivoted discharge door 3 of which is automatically unlatched when the pan contains an object falling within a pre-determined weight range-which corresponds with the station under the pan and is characterized in that the means for unlatching the door comprises a shaft 13 which is carried by the weigher, is rotated synchronously with the angular motion of the weigher, and is also provided with mechanism for adjusting the value of the weigher's counterweight in accordance with the discharge station beneath the pan. The weighers are moved in a circular path by a motor driven shaft 23 which, through planet gearing 29-37 and bevel gears 19, 22, drives shaft 13 at the same speed as itself. Each shaft 13 carries a toothed wheel 12 which, when the pan moves downwardly engages a plate 11 on one arm of a bell crank 10, thereby removing arm 6 from a notch in a disc 5 which is secured to the discharge door 3 concentrically with its pivoting axis 4. Also each shaft 13 carries a series of cams 14 which through push rods 15 position loose weights 17 on a bridge 18, carried by the weigh beam, in accordance with the position of the weigher. A further cam 14 also controls another spring loaded push rod (not shown) which locks the beam when the weigher is not over a receiving station. Each wheel 12 is provided with one large tooth which opens the pan in its raised position once in each cycle to discharge any underweight objects at a reject station. In a modification (not shown) the weighers are stationary and the stations move past them.
Patent GB-248030-A (GB)
Title: Improvements relating to electric hand lamps
IPC: F21V19/02
Filed: 1924-10-29
Abstract: 248,030. Stretton, T., and Thor Lamps & Supplies, Ltd. Oct. 29, 1924. Hand lamps. - The lamp bulb holder a and the reflector a<1> of an electric hand lamp are together pivotally mounted on brackets d on the top of the battery casing and are retained in any position by a spring plunger engaging recesoos g in the lamp holder. The lamp holder and the reflector may be secured to the brackets or to the lamp top by means of tubular parts through which the leads pass. Specifications 155,873, [Class 39 (ii), Electric lamps, Incandescent], and 176,445 are referred to.
Patent GB-1335908-A (GB)
Title: Polycyclic compounds
IPC: C07D311/74
Filed: 1971-04-19
Abstract: 1335908 Polycyclic dihydropyran derivatives BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [2 April 1970] 25829/71 Heading C2C  A polycyclic compound of the general Formula I  in which R<SP>1</SP> denotes hydrogen, a hydrocarbon radical of from 1 to 40 carbon atoms or an alkoxy group of 1 to 8 carbon atoms and R<SP>2</SP> denotes hydrogen or a hydrocarbon radical of from 1 to 40 carbon atoms, and in which there is attached to the dihydropyran group D the structural element A, optionally followed by the structural element B and one or more structural elements A and B such that A elements alternate with B elements, to provide the formula where m is 0 or 1 and n is 0, 1, 2, 3, or 4, the total number of rings in the compound being from 2 to 10, is prepared by reacting a compound of formula when n is 1 to 9, with an acidic agent at -100‹ to +150‹C.
Patent GB-814273-A (GB)
Title: Copperable disazo dyestuffs derived from 5-aminopyrazols
IPC: C09B45/24
Filed: 1957-08-15
Abstract: The invention comprises dyestuffs of the formula <FORM:0814273/IV (c)/1> where R and R1 are aryl residues.  They may be made by coupling tetrazotized 4,41-diaminodiphenyl - 3,31 - dicarboxylic acid with appropriate end components.  R1 is indicated as a residue of 1-acetylamino-4-aminobenzene, aniline, aniline carboxylic acids and b -naphthylamine-6-carboxylic and -3-, -4- or -8-sulphonic acids. Indicated as pyrazoles are 1-(81, 71-, 61-, 51- or 41-monosulpho- and 61- and 41 - carboxy - naphthyl - [21]), - phenyl - and -(31- and 41-chloro-, -nitro-, -alkyl-, -alkoxy-, -amino-, -acetylamino-, -sulpho- and -sulphamido - phenyl) - 3 - methyl - 5 - aminopyrazoles. The dyestuffs dye cotton and regenerated cellulose in reddish violet shades which may be after-coppered. Examples are provided illustrating the preparation of the dyestuffs from certain of the above indicated reactants and their use in dyeing processes.
Patent GB-1057862-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: STONES WALTER
IPC: H04M3/44
Filed: 1963-06-28
Abstract: 1,057,862. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. June 29, 1964 [June 28, 1963], No. 25864/63. Heading H4K. In an arrangement for setting up frequentlywanted connections, as, for example, in a large PABX, in response to the dialling of characteristic short codes, such codes are distinguished at the exchange from full numbers starting with the same digits by timing equipment which renders the code effective if no further digit is received within a given time. This time is greater than the normal interdigital pause but much less than the " throw-out " period which results in the rejection of the call. As shown, a 3-part timer TC is employed, the first part T2 corresponding to the given time mentioned above, the second part T1-T2 representing the time up to T1, the throw-out period, and the third part TX controlling release. Dialled digits are repeated by a detector D to a store DS, and are counted by a counter DC which controls the resetting of the timer TC and also control equipment ST which initiates the setting up of the call. If a full number is received in the normal manner, DC opens the gate G8 and allows the contents of the store DS to pass to ST. If at any stage there is a pause longer than T2, then the timer TC opens the gate G4 to enable a translator T, which compares the contents of DS with a library of short codes. If the dialled code is found, the appropriate translation is transferred to DS and the gate G8 is opened to set up the call. But if the code is not found, the translator may be taken into use again after one or more further digits. If finally the full number of digits is not completed within the time T1, the timer TC opens the gate G5 to effect release and give NU tone. The translator may comprise a magnetic drum or ferrite core store. The short codes need not all consist of the same number of digits, and similar codes may have different meanings for different calling subscribers, in which case the translator must also record calling numbers.
Patent GB-285932-A (GB)
Title: The manufacture of substituted guanidines
IPC: C07C277/08
Filed: 1926-10-16
Abstract: 285,932. Carpmael, W., (Chemische Fabrik auf Aktien, vorm. E. Schering). Oct. 16, 1926. Guanidine compounds are obtained by treating S-alkylisothioureas or their derivatives with an equimolecular proportion of a solid or liquid monamine or a derivative which is free from acidic groups, mercaptan being split off. Solvents may be present. The products, which are decomposed by alkalies and form complex compounds with phosphotungstic acid, are useful for therapeutic purposes. Examples are given of the preparation of guanidine compounds by interaction of (1) S-ethylisothiourea with ethanolamine, O- acetylamino-ethanol, methylamino-ethanol, O- acetyl-methylamino-ethanol, amino-acetal, methylamino-acetal, alpha-aminopyridine, piperidine, pyrrolidine, and 4-amino-1-phenyl-2 : 3-dimethyl-5- pyrazolone; (2) S-methylisothiourea with methylamino-ethanol, ethylamino-ethanol and isoamylamino-ethanol; (3) N-methyl-S-ethylisothiourea with methylamino ethanol and amino-acetal ; (4) 1 : 3-di-p-nitrobenzoyl-2-ethylisothiourea (described in Specification 255,466) with diethylamine; (5) 1 : 3-dicarbethoxy-2-ethylisothiourea (described in Specification 255,466) with benzylamine; (6) 1 : 3- dibenxoyl-2-methyl or ethyl-isothiourea with methylamino-ethanol. The picrate, picrolonate, hydrochloride, hydrobromide and hydroiodide of some of the products are described. O-Acetyl-methylamino-ethanol is prepared from #-iodoacetic ester and methylamine.
Patent GB-1405059-A (GB)
Title: Manufacture of perlite insulating board on a cylinder machine
IPC: D21H23/00
Filed: 1973-05-31
Abstract: 1405059 Insulating board JOHNS-MANVILLE CORP 31 May 1973 [5 June 1972] 25925/73 Heading D2B In a process for producing perlite insulating board on a cylinder forming machine, the perlite is present in the aqueous slurry in the form of fine expanded particles at least 20% of which will pass, through a 325 mesh screen (U.S. Standard Sieve Series). The density of the particles is in the range 6-8 1b/cu ft, the insulating property of the board increasing due to a greater air to perlite ratio. The solid fraction of the slurry is 3.5-6.0% and contains 50-80% perlite particles, 10-40% organic or inorganic fibres, and 5-30% adhesive or binder. The inorganic fibres may be of glass; mineral wool or may be asbestos fibres. Suitable binder or adhesive materials include bituminous emulsions, sodium silicate, pitch, bentonite, resins and dispersions of starch.
Patent GB-208264-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P1/20
Filed: 1922-09-27
Abstract: 208,264. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 27, 1922. Systems for continuous-current motors only.- In an automatic starting system for direct current motors, resistances are successively cut out by one or more electromagnetic switches or relays having two windings, one winding of each relay determining the order of operation, as in Specification 198,278, and the second winding imposing a time-limit depending wholly or partly on the rate of change of current or e.m.f. in the motor circuit. According to the invention, the timelimit windings 20, 23 of the relays 21, 24 are connected to the anode of an electron discharge tube 25 having a heated cathode connected to a potentiometer resistance 30, 32, and a grid 28 connected to the secondary of a transformer 31 which is transiently energized during the surges of current due to the successive steps of starting. The temporary rise of potential of the grid, due to the transformer, sets up a discharge between the tube electrodes and thus maintains sufficient current in the windings 20, 23 to delay the action of the relays for a period depending on the setting of the potentiometer and the manner in which the transformer 31 is connected to the motor circuit. Further differences in the delay characteristics are obtained by substituting one or more condensers for the transformer. The individual electromagnetic switches are of the type described in Specification 185,450, [Class 38 (v), Electric switches &c.].
Patent GB-509546-A (GB)
Title: Improvements in bobbins
IPC: B65H75/30
Filed: 1938-09-07
Abstract: 509,546. Unwinding yarns ; bobbins. SCHNEIDER, H. Sept. 7, 1938, No. 26145. Convention date, Sept. 29, 1937. [Classes 120 (ii) and 120 (iii)] A spinning and doubling bobbin which can also. be used for unwinding, which is adapted for mounting on a dead spiral and which is fitted with self-braking means or can be coupled with a carrier fitted with selfbraking means, has the diameter of the barrel increased to such an extent in relation to the flanges of the bobbin that the bobbin does not develop such a force of inertia during unwinding as cannot be rapidly destroyed by the selfbraking means; consequently the bobbin does not overrun and throw-off undesired lengths of yarn when unwinding terminates or when at high speeds the yarn breaks during unwinding. As shown, a sleeve v is arranged on the usual bobbin barrel d to enlarge its diameter ; the bobbin may be made of light material with a thin-walled barrel of enlarged diameter or of wood with a barrel of enlarged diameter spaced from its supporting spindle by sleeves. The bobbin is braked by means b on the underside of the bobbin supporting plate g to which the bobbin is coupled by pins r or the braking means may be carried by the lower flange of the bobbin. Specification 375,803 is referred to.
Patent GB-1276133-A (GB)
Title: Weft measuring device for shuttleless looms
IPC: D03D47/00
Filed: 1969-05-22
Abstract: 1276133 Weft measuring; shuttleless looms VYXKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI 22 May 1969 [24 May 1968] 26285/69 Heading DIE A weft measuring drum comprises a number of jaws 1 whose effective outside diameter is adjusted by axial movement of wedges 4 acting on rollers 22 on each jaw. The jaws 1 are driven at a constant speed by a shaft 3 and have surfaces 7 driving a belt 8 wrapped around a pulley 9. The weft is passed between the belt 8 and pulley 9 so that as the diameter of the jaws is adjusted the speed of the belt varies and the amount of weft delivered to the jaws varies in dependence of their effective diameter. A pivoted guide eye 13 brings the weft into contact with a claw 12 on one jaw and a shield 24 acts on the weft to wrap it around the drum. The surfaces of the jaws may have helical grooves and guards 23 are provided to prevent the weft entering between the jaws.
Patent GB-427626-A (GB)
Title: Improvements in or relating to the manufacture of cellulose
IPC: D21C9/08
Filed: 1933-09-23
Abstract: Cellulose suitable for use in the manufacture of organic derivative of cellulose, is prepared by subjecting wood pulps which have been obtained by processes for removing the greater part of the lignin from the original wood, e.g. sulphite, sulphate, soda or chlorination processes, but which still contain residual lignin, to successive treatments first with \ba1/2\be to about 3 per cent caustic alkali solution at 100--200 DEG  C., and then with 10 to 25 per cent caustic alkali solution at a temperature below 35 DEG  C.  The treatments may be carried out under pressure. The dilute alkali treatment may last for up to 4 hours, the weight of liquor being 20--40 times that of the pulp, while the second treatment may last for up to 8 hours with 8 to 20 times as much liquor as pulp.  The treatment may be continuous or discontinuous, e.g. a batch process or a circulation of liquor through the pulp, and may be combined with other etratments, for example, with a lower aliphatic acid before esterification.  In an example, spruce wood sulphite pulp is treated with 30 times its weight of 1 per cent sodium hydroxide solution at 110 DEG  C. under a pressure of 5 atmospheres produced with nitrogen for about 3 hours, and then with ten times its weight of 12 per cent sodium hydroxide at normal temperature for 6 to 8 hours.  The cellulose is washed with water and heated with three times its weight of glacial acetic acid at 60 DEG  C. for 5 hours.  Specifications 249,173, 263,938, [both in Class 2 (ii)], and 420,099 are referred to.
Patent GB-468550-A (GB)
Title: Improvements in and relating to the control of alternating current circuits by saturable chokes
IPC: H01F29/10
Filed: 1936-09-28
Abstract: 468,550. Supply systems for consumption apparatus; inductances ; dynamoelectric machines. PINTSCH AKT.-GES., J. Sept. 28, 1936, No. 26287. Convention date, April 9. Addition to 467,628. [Classes 35, 38 (ii), and 38 (iv)] The circular systems of controlling chokes described in the parent Specification are so arranged that the polarizing flux due to the D.C. controlling current flows through the saturable core in a direction perpendicular to the main flux due to the choke windings. In the arrangement shown in Figs. 1 and 2, six circuits are energized, one at a time, by rotation of the closure elements 38, 38<1> of the magnetic control circuit. Each circuit is connected to its controlling choke coil 35 wound on the central bar of the two-part core 31<1>, 31<11>, the six cores being separated by non-magnetic partitions 32 and held in place by a cylindrical member 34 also of non-magnetic material. The central bar of the core is shortened so that the winding 35 does not project beyond the end of the core. The magnetizing elements include a central iron core 36 surrounded by a D.C. winding 37 and control yokes 38, 38<1> the whole being rotatably mounted on the shaft 39. The yokes complete the magnetic circuit through the core 36 and one of the cores carrying a winding 35, the direction of the magnetic flux being longitudinally of the apparatus while the direction of the main flux due to the A.C. in the coil 35 is radial at that part of the core. The plates of the cores 31<1>, 3111 may be perpendicular to the axis 39 or may run circumferentially round the core. To ensure that the magnetizing flux is limited to the central bar of the core, the remaining parts of the core are cut away, as shown in Fig. 3. In the modification shown in Figs. 7 and 8, six units fitting closely into a circle, each consist of closed cores 31<1> with their plates perpendicular to the axis 39 and a longitudinal core 31 with winding 35 projecting beyond the ends of the cores 31<1> so as to overlap the control yokes 38, 38<1> which rotate with the magnet core 36. The control winding 37 may be stationary or may rotate. The magnetic flux conductors may be made from ferro-magnetic material in powder form together with a binding material.
Patent GB-863436-A (GB)
Title: Improvements in or relating to electric submarine cables
Inventor: MOORE HAYDEN ALBERT
IPC: H01B7/14
Filed: 1958-08-15
Abstract: 863,436. Cables. STANDARD TELEPHONES & CABLES Ltd. Aug. 14, 1959 [Aug. 15, 1958], No. 26293/58. Class 36. A coaxial submarine cable has a core of stranded metal wires, e.g. mild steel, 1, with a copper tape 2 folded longitudinally therearound, the box seam 3 being hermetically sealed by a filament of plastic material such as polythene or lead. A polythene filament 4 may be led under the copper tape through a guide tube 5 just before the folded edges of the tape are brought together. The core may then be heated to cause the filament to seal the seam and a thermoplastic insulating covering is then extruded over the core.
Patent GB-378679-A (GB)
Title: Improvements in or relating to sheet metal baths, wash tubs, boilers, and like hollow-ware
IPC: A47K1/04
Filed: 1931-09-21
Abstract: 378,679. Baths and like hollow-ware vessels. WEBSTER, W. H., 7, Jubbergate, York. Sept. 21, 1931, No. 26312. [Class 26.] A sheet metal bath, wash-tub, or like hollowware vessel is provided in lieu of the usual twc handles with fittings or attachments, each serving as a handle and as a support or holder for soap &c. Each fitting comprises a shallow dished tray 1, the inner edge of which conforms to the shape of the wall of the vessel 2, formed with lugs 3 riveted or welded to the vessel. The tray is formed with an opening 5 and a flange 4 disposed at the centre of the inner edge so as to leave draining channels on either side ; further, the inner edge is preferably dished and spot-welded to the vessel as at 6, and, together with the lugs 3, may be arranged to straddle the edge of the vessel. Where the vessel is constructed of two blanks, the fittings are preferably arranged to extend across the joints.
Patent GB-1480977-A (GB)
Title: Method and apparatus for carrying out combustion or a thermal reaction between streams of fluids
IPC: B01J12/00
Filed: 1975-06-20
Abstract: 1480977 Burners RHONE-POULENC INDUSTRIES 20 June 1975 [28 June 1974] 26377/75 Heading F4T A burner comprises a cylindrical or frustoconical casing 1, closed by a wall 7, and forming an annular chamber 4 with a co-axial wall 2 perforated at 3, a fuel pipe 8, a tangential gas supply pipe 5, and an air supply pipe 12. Diaphragms 14, 15, may be provided. The air is supplied to a chamber 10 by the tangentially arranged pipe 12, and passes through apertures 9 to a combustion chamber 6 which also supports a sparking plug 13. The gas passes along chamber 4 in a helical fashion and flows into chamber 6 through apertures 3. A protective screen (18) Fig. 3 (not shown), may be arranged in chamber 6, and pipe 5 may be arranged at the upstream end of the burner Fig. 4 (not shown). The fuel supplied at 8 may be gaseous or liquid.
Patent GB-380258-A (GB)
Title: Improvements relating to machines for washing drinking glasses and for other like purposes
IPC: A47L15/00
Filed: 1931-09-22
Abstract: 380,258. Cleaning glasses, jars, &c. BIRD, A. W., 69, Goldsmith Road, King's Heath, Birmingham. Sept. 22, 1931, No. 26446. [Class 138 (i).] Apparatus for washing drinking-glasses, jars, wide-necked bottles, and like receptacles, comprises one or more wiping devices adapted to be pressed against the receptacle by means responsive to the pressure of cleansing fluid. In the construction shown, a hollow stem b mounted within a tank a is provided with cylinders, each fitted with a piston d. The pistons are shown arranged in two sets of three, the sets being in different planes. At its outer end, each piston bears against a wiper in the form of a rubber squeegee e in a holder f. The wiper is fulcrumed at its upper end in a slotted plate r and is adapted to act upon the inner surface of the glass g against the action of a spring m. The upper end of the stem b is provided with a rubber wiper h for engaging the base of the glass. The lower end of the stem carries hollow arms i terminating in nozzles u adapted to direct streams of water on the exterior of the glass. Each arm is provided with a cylinder and piston k, the latter being attached to the holder f of a wiper e which may be held in its inactive position by a spring l. The stem b is movable axially so that when depressed it opens a water tap. The. flow of water acts on the pistons d, k to press the wipers e against the inner and outer surfaces of the glass, which is turned by hand so that cleaning may be effected. The upper part of the tank a has a soft rubber disc x to minimize splashing. In a modification, an expansible hollow rubber body with external projections may be provided instead of the wipers.
Patent GB-616399-A (GB)
Title: Improvements in or relating to tracks for wheeled vehicles
IPC: E01B23/02
Filed: 1946-09-03
Abstract: 616,399. Portable railways; rail joints. COLLINS, W. G. Sept. 3, 1946, No. 26496. [Class 104 (ii)] A portable railway comprises tubular rails 10 secured to transverse sleepers 11, each rail' having a spigot end 13 entering the open end of the adjoining rail. Each rail comprises a steel tube welded to steel strips 11 and has welded within one end a tapered plug 13. Each rail has near each end a perforated lug or ear 14 to receive a metal roll 17 having pointed ends 16, to prevent separation of adjacent rails.
Patent GB-206324-A (GB)
Title: Improvements in mud guards for cycles and motor cycles
IPC: B62J15/00
Filed: 1922-10-02
Abstract: 206,324. Finegan, J. Oct. 2, 1922. Mud-guards.-A pair of side plates a, hingedly attached to the front fork of bicycles &c. by pins d engaging with brackets b, are held at an angle by tie-rods h which fit into brackets on the side plates and into brackets l on the mud-guard. The inner edge f of the side plate is turned inwardly and a trough g is formed' by bending up the bottom. The pin d may be mounted on the bracket b and the sockets on the side plates. The Provisional Specification also refers to the mounting of the bracket l on the fork.
Patent GB-1127825-A (GB)
Title: Improvements relating to the manufacture of spherical and spheroidal objects
Inventor: TRAINER PHILIP HENRY
IPC: B21D51/08
Filed: 1966-06-15
Abstract: 1,127,825. Making handrail knobs. FILDEN ENG. Ltd. 29 June, 1967 [15 June, 1966], No. 26603/66. Headings B3A and B3Q. A method of producing a hollow spherical or spheroidal article, e.g. a handrail ball (40), Fig. 4 (not shown), comprises pressing a cylindrical tube 17 between generally hemispherical die-surfaces 12, 13. Pressing is continued until the desired size of aperture remains in the article, or is continued to close the apertures. As shown, the apertures for the handrails (42) are sized by cylindrical inserts 20. A hole is drilled and tapped in the ball to receive a grub screw (45).