baber/WOPTO huggingface dataset:
Patent GB-461813-A (GB)
Title: Improvements relating to the refining of mineral oils
IPC: C10G21/16
Filed: 1935-08-19
Abstract: Petroleum oils are refined by extraction with at least 0,5 vol. of 97--100 per cent acetic acid; 0,5--3,0 vol. are specified.  The oils may first be thinned with lighter hydrocarbons and/or extracted with acetic acid of about 85 per cent strength; and the acid-treated oils may be freed from and then be treated with sulphuric acid or absorbent earth, or they may be washed with water or with alkali, e.g. caustic soda or lime and then with water.  Oil retained by the acetic acid may be fractionally recovered by the controlled addition of water or an anhydrous acetate, e.g. sodium acetate; this oil may be added to the refined oil, or be used as fuel oil or to prepare petroleum resins or may be cracked to petrol or oxidized to asphalt. Burning oil may be obtained by refining the higher fraction, e.g. B.P. 200--310 DEG  C., of kerosene, and adding it to the unrefined lower fraction.  The extraction may be single or repeated batch treatment, or may be continuous or batch countercurrent treatment; it may be conducted at atmospheric or other temperatures and pressures. The raffinate and extract may be separated by settling or by a centrifuge.  The acetic acid may be recovered by plain or steam distillation, washing with water, by salting out with anhydrous sodium acetate, or by freezing, and may be concentrated and re-used. The treatment of petrol, kerosene, gas oil, diesel fuel oils, and lubricating oils is referred to.  In examples: (1) 100 vol. of kerosene is treated at 26--27 DEG  C., in countercurrent with 200 vol. of glacial acetic acid in 4 stages.  The raffinate is washed with water in stages, and the dilute acetic acid obtained added to the extract, causing a yellow oil to separate, or used to wash yellow oil previously released from the extract; the washed yellow oil is washed with fresh water, and this water then used to wash raffinate; (5) 100 vol. of a petroleum lubricating fraction is treated twice at atmospheric or higher temperature with 250 vol. of glacial acetic acid, and the raffinate washed with water.  Using the 4-stage continuous countercurrent apparatus shown, unrefined oil is passed by a valve K and pipe D4 to a tank M4 in which it is mixed with thrice-used acid from the centrifugal separator CS3 and pipes G3, B, E; the mixture is forced by a pump C4 through an orifice mixer O4 and a pipe C4 to a centrifuge CS4, which discharges acid extract through pipes G4, B to a container, and raffinate through pipes F4, A, D3 to mixer M3 where it is treated with twice-used acid from a centrifuge CS2.  The pure acid is passed <PICT:0461813/III/1> by the pipe B, valve K, and pipe E1 to mixer M1 receiving thrice-treated oil from centrifuge CS2 and pipes F2, A, D1.  Level controls LC1 ..4 and pressure regulators PR1 ..4 are provided.
Patent GB-829151-A (GB)
Title: Apparatus for carrying out cutting and other operations on continuous stock in motion
IPC: B23D25/06
Filed: 1957-07-23
Abstract: 829,151. Eccentrics. HALLDEN MACHINE CO. July 23, 1957 [Jan. 15, 1957], No. 23324/57. Class 122 (1). [Also in Group XXII] A variable-throw compound eccentric coinprises an inner eccentric 104, Fig. 3, keyed to a shaft 110 and an outer eccentric 106 carrying a pin 192 engaging a radial slot 196 in a gear 198 driven by a gear 202 on a shaft 204 so that the eccentrics 104, 106 rotate in the same direction. Shafts 110, 204 are connected through differentials 218, 220 to a common driving-shaft 284. The eccentrics 104, 106 may be adjusted equally and oppositely while rotating by rotation of the housings 246, 246<1> carrying the planet gears 264, 264<1> of the differentials, the housings being secured to worm-wheels 294, 296 which may be rotated by worm gears mounted on the same shaft and driven manually or by a motor. The compound eccentric shown in Figs. 9 and 10 consists of inner and outer eccentrics 402, 404 adjustably secured to each other and a shaft 406 by annular wedges 414, 410 bolted to the eccentrics 402, 404. Markings 424, 428 on the eccentrics and the shaft facilitate setting.
Patent GB-301815-A (GB)
Title: Improvements in and relating to the retubing of guns
IPC: B21C37/15
Filed: 1927-09-06
Abstract: 301,815. Pittoni, L. Sept. 6, 1927. Ordnance tubes.-Relates to methods of retubing guns in which the adhesion, of the tube to the barrel is diminished, when it is desired to insert or withdraw the tube, by heating the barrel and cooling the tube. According to the invention, the tube is conical externally and the external diameters of the tube at the breech or muzzle, or both, are greater than, and along the rest of the length are substantially equal to, the corresponding internal diameters of the seating in the barrel. Devices are provided for first heating the whole barrel and then suddenly cooling the tube from the inside, an axial force being applied to the tube so that it is withdrawn, or fully inserted as soon as it has shrunk. As shown in Fig. 1, apparatus for withdrawing a tube 2 comprises a perforated hollow rod 5 having at the front a shoulder 4 engaging a collar 3 bearing against the muzzle and at the rear having a nut 17 engaging Belleville washers 16 bearing against the piston 15 of a hydraulic ram 13. The central boring of the hollow rod is interrupted near the rear end so that heating or cooling fluid introduced at the front of the rod enters the tube through apertures 8 and passes out through apertures 9. In operation, tension is put on the rod by compressing the Belleville washers, either by using the ram or by screwing up the nut 17, and steam and cold water are introduced in succession. As soon as the tube has shrunk, the washers expand and withdraw the tube sufficiently to enable it to be pulled out by hand. When inserting a tube, the apparatus is reversed and an extension 20, Fig. 2, is attached to the front end of the tube 19. The outer surface of the extension has longitudinal channels registering with other channels in the end of the tube and engaging keys provided at the muzzle of the barrel body 1. Specifications 12296/95 and 8136/09 are referred to.
Patent GB-204332-A (GB)
Title: Improvements in apparatus for operating high-vacuum mercury vapour gas ejectors in connection with mercury vapour rectifiers
IPC: H01J13/28
Filed: 1923-09-19
Abstract: 204,332. Akt.-Ges. Brown, Boveri, et Cie. Sept. 25, 1922, [Convention date]. Aspirating-apparatus, ejector. - In connection with electric railway systems wherein mercuryvapour rectifiers are used for the supply of current, difficulties arise as to the provision of insulated mountings and electric mercury-heaters for the mercury-vapour gas or air ejector employed for maintaining the vacuum in the rectifier vessel, especially where high voltages are in question. To obviate these, the heating resistance is connected to a small auxiliary transformer that obviates the danger of high-voltage current passing over to the existing low-voltage network that arises where the heater is included in that network. The advantage is also gained that the pump can continue working independently of the rectifier. Several such heating coils may be supplied from a common auxiliary transformer.
Patent GB-742254-A (GB)
Title: Improvements in or relating to indicator devices
Inventor: ELLIS JOHN HENRY
IPC: H04M3/64
Filed: 1952-09-19
Abstract: 742,254. Electric indicators. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Sept. 15, 1953 [Sept. 19, 1952], No. 23518/52. Class 40(1) An indicator, e.g. for identifying a calling line in a telephone exchange, consists of a series of units mounted co-axially, each unit comprising a cylindrical surface adapted to be stepped electromagnetically to any of a plurality of positions behind a display aperture in the indicator casing, the surface being illuminated through another aperture in the casing and being formed of a transparent plastic substance which transmits the light internally so that indicia engraved on the underside of the surface appear brightly illuminated. As shown Figs. 1, 2, two indicator units 32 are disposed co-axially within a two part casing 10 bolted at 11, 12 and apertured at 16 for viewing and at 18 or 19 for illumination by an external lamp 37 or 39. Each unit 32 consists of a twelve pole stator 26 secured in its housing 21 by a soft iron screening cover 30, and a permanent magnet two-pole rotor 24 carrying a disc 31 the flange of which forms a skirt embracing the stator housing and carries a ring 32 of transparent material, e.g. an acrylic resin bearing indicia engraved on its inner face. The stator windings 28 are arranged in three groups in star form connected to three terminals 22 to which positive, negative or neutral potential are applied in appropriate combinations disclosed in the Specification to give twelve specific rotor positions. Each indicator unit 32 may have associated therewith a further electromagnet Fig. 3 (not shown), adapted upon energization to step the associated indicator rotor through a pawl and ratchet wheel to a position intermediate two indicating positions, thereby increasing the number of indicating positions to 24 and overcoming the difficulty encountered when the rotor has to move 180 degrees from one indication to another.
Patent GB-372200-A (GB)
Title: Improvements relating to foot arch supports
IPC: A43B7/22
Filed: 1931-08-24
Abstract: 372,200. Foot-arch supports. SCHOLL MANUFACTURING CO., Ltd. and SCHOLL, F. J., 188, St. John. Street, London. Aug. 24, 1931, No. 23759. [Class 81 (ii).] In a foot-arch support comprising a plate a and a detachable protecting pad b, headed studs c on the plate passing through perforations b<1> in the pad are engaged by a notched metal plate d, Fig. 1, a spring wire g, Fig. 8, or eyelets b<2>, Fig. 12, the studs in the last instance being in the form of male portions of snap fastenings. The plate d may be notched as shown, or have one side notch and one end notch, or both notches may be at the ends ; or a notched plate d may be rotatably secured to a second plate having perforations through which the studs pass. The eyed spring wire g may be attached to the pad b, and the plate d may be replaced by a perforated unnotched plate, the perforations of which are provided with spring wire clips to engage under the stud heads. A covering layer e of rubber may be pasted over the pad b.
Patent GB-705322-A (GB)
Title: Process for chlorinating 1:3:3-trimethyl-1-phenyl-indan
IPC: C09K3/00
Filed: 1951-10-12
Abstract: Chlorinated trimethyl-phenyl-indans of the formula <FORM:0705322/IV(b)/1> where m and n may be zero or integers and the sum of m and n is between one and nine are prepared by chlorinating 1:3:3-trimethyl -1-phenyl-indan by melting the starting material at approximately 55 DEG C., passing a current of chlorine in the presence of a nuclear chlorination catalyst (e.g., ferric chloride, antimony trichloride or iodine), and stirring at approximately 50 DEG C. until at least 1 chlorine atom per molecule of starting material is introduced. The product may be separated by distilling, agitating the distillate at 80-90 DEG C. with an activated earth and filtering. An example describes chlorination by the above method to introduce 2 mols of chlorine per mol of indane derivative giving a dichloro derivative.  Specification 651,528 is referred to. p
Patent GB-1158100-A (GB)
Title: Improvements relating to Toilet Paper Rolls
IPC: A47K10/16
Filed: 1968-05-20
Abstract: 1,158,100. Toilet paper rolls. PAGE ZELLSTOFFKREPP G.m.b.H. 20 May, 1968 [23 May, 1967], No. 23841/68 Heading A4N. A toilet paper roll consists of a single or a multi-ply paper band, with the outer end of the paper band attached to the next inner layer, characterized in that there is laid over the end of the paper and the next inner layer of the roll, a cord, tape or thread which is stuck to these two parts and is detachable without damaging the parts. Preferably the cord, tape, or thread and the adhesive which connects the cord, tape or thread to the roll, consists of materials which are soluble in water. A method of manufacture which may be used comprises winding the cord, tape or thread, which is provided with adhesive, in the form of a spiral around a paper roll which is several times as wide as an individual roll in such a way that at least one approximately complete turn (360 degrees) is guided over the width. of a roll and the broad paper roll is divided into individual rolls.
Patent GB-480451-A (GB)
Title: Improvements in or relating to belting
IPC: F16G5/16
Filed: 1936-09-01
Abstract: 480,451. Driving - belts. EVANS, P. T., WRIGHT, J. H., and BRAMMER, H. Sept. 1, 1936, No. 23938. [Class 80 (i)] Relates to a belt constructed of flexible material such as leather, textile material, or rubberized fabric and provided with transverse bars, pins, plugs, or tubes along its length. According to the invention, clips for holding the bars &c. are passed through the belt at intervals in its length and are adapted to project on one or both faces of the belt so as to form loops for the reception of the bars. In the form shown in Figs. 1 and 2, the metal clips 3 have loops 4 on both faces and are passed through holes 2 in the belt to receive bars 9 of wood, metal, leather, hard raw hide. &c. The clips may have loops on one side only of a base-plate 7, Fig. 4, or may be formed of simple tubes passed through slots in the belt. These strip-metal clips may be secured to the bars 9 by nails or screws or by deforming them into recesses in the bars. Two or more wire rings may be passed through slits at intervals across the width of the belt. This form of clip may be used as a belt-fastener, Fig. 10, the rings being forced into T-shaped slits 11 in the belt ends. The bar 9 then completes the joint. Fig. 7 shows a modified form of wire clip. Any of the clips may be employed in a belt consisting of overlapping links 16, Fig. 15. The clips may be riveted to one ply and passed through the others, washers 18, 21 being provided to minimize wear. For wide belts a common bar for several clips across the width may replace the washer 21. The parts of the clips not filled by the bars 9 may be filled by blocks 22, Fig. 18, which may be integral with the bars. Spacing washers may be placed on the clips between the links 16, or washers with enlarged ends may be passed through the clips. These washers may be hinged at 25 to blocks 22, Fig. 22. The bars 9 may be flush with the sides of the belt or may project therefrom to engage the walls of a V-pulley, or to engage recesses 27 in the pulley 28, Fig. 24. In the modification shown in Fig. 26, strips 1, 1a separated by intermediate bars 9 are employed and such bars are recessed on both sides to engage the clips.
Patent GB-481158-A (GB)
Title: Thermally actuated valves or electric switches for absorption refrigerators
IPC: F25B49/04
Filed: 1936-09-02
Abstract: 481,158. Electric switches. BLOCH, R., and GOLDBERGER, F. Sept. 2, 1936, No. 23987. [Class 38 (v)] [Also in Group XXIX] A thermally. actuated valve or electric switch for use in absorption refrigerating plant has the thermal element adapted to act through two snapover devices arranged in series. In the form shown in the Figure the thermosensitive element (bi-metallic or capsule) actuates a rod d on which two spaced adjustable tappets are arranged adapted to co-operate with one link e of a pair of toggle links h, e arranged between a rigid post i and a spring arm f. The link p of a second pair of similarly arranged toggle links carries a valve member k and a rod g with spaced adjustable tappets g<1>, g<2> adapted to co-operate with the toggle link h. Spring snapping discs may replace the toggle systems. The valve may be replaced by an electric contact.
Patent GB-795827-A (GB)
Title: Improvements in or relating to radio frequency heating apparatus
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H01F21/04
Filed: 1955-08-19
Abstract: 795,827. Transformers. RADIO HEATERS, Ltd. Oct. 12, 1956 [Aug.] 19, 1955], No. 23997/55. Class 38 (2). [Also in Group XL (c)] The work coil 96 of H.F. induction heating apparatus is energized from an oscillator including a valve 84 through a transformer comprising relatively movable primary and secondary windings 28, 6 connected respectively in the tank circuit including capacitors 92, 94 and to work coil 96 and an auxiliary winding 76 connected between the anode of valve 84 and the tank circuit and inductively coupled to primary winding 28 in such a way as to cancel a proportion of the radio frequency anode volts. By this arrangement the voltage developed across primary winding 28 may be reduced. Winding 6 comprises three turns of copper strip wound on an insulating former 8 and cooled by water through and flattened copper tube 10 soldered to its middle. Primary winding 28 comprises six turns of double, flattened, water-cooled copper tubing mounted on a former 30. This former may be moved on rollers 34 running on fixed beam 36 by-rotation of a knob (Fig. 3, not shown), and drum 54 which moves cord 46 attached at each end to former 30. The turns of winding 28 are graduated in diameter to give greater spacing from winding 10 at the high voltage end. Auxiliary winding 76 comprises water-cooled copper tube wound on a former 78 to move with the primary winding. Tube 66 forms a common end for windings 76 and 28. Movement of the primary windings varies the output of the transformer. The number of turns of the auxiliary winding 76 may be varied for different loading conditions by making a sliding connection between winding 76 and the lead 80. Windings 76 and 28 may be separated to form a two winding and not an autotransformer. Specification 693,066 is referred to.
Patent GB-240301-A (GB)
Title: Improvements in or relating to aeronautical machines
IPC: B64D17/00
Filed: 1924-10-10
Abstract: 240,301. Miller, G. Oct. 10, 1924. Parachutes.-The fuselage of an aeroplane is provided with four hinged sheet metal or other stiff plates b connected to flexible non-inflammable material a packed in recesses beneath the plates, the plates and flexible material opening out to form a parachute when bolts c are released. The parachute may have umbrella-like ribs in addition to the plates b. Springs may start the opening movement.
Patent GB-611054-A (GB)
Title: Dispensing and vending apparatus
IPC: G07F9/10
Filed: 1945-09-18
Abstract: 611,054. Dispensing heated packaged foods. TRIGGS, W. W. (American Inventions, Inc.). Sept. 18, 1945, No. 24035. [Classes 27 and 116] Apparatus for dispensing packaged food items in a heated condition has high-frequency induction heating means for heating each package immediately before it is delivered, so that the remaining packages can be stored in the machine at room temperature or lower to avoid deterioration. The coin-freed apparatus shown dispenses sausage-rolls packed in cardboard cylinders 26, but other food items, including soup in suitable containers, can also be dispensed. The packages or cylinders 26 are stored separately in tubular compartments 11 of a series of superposed drums 10 mounted to rotate step-wise as a whole on a spindle 4. Each drum has two concentric rings of compartments 11 in staggered relationship and a stationary plate 17<1>, with a delivery aperture 27 over a discharge funnel 22, is disposed under the lowermost drum to support the articles. The upper drums each have a similar support plate 17 with a delivery aperture, the apertures of the several plates being successively off-set circumferentially by the spacing of the compartments 11 or a multiple of such. At each step-wise movement of the drum, an article is brought over the aperture 27 and falls into the funnel 22 and thence into a high-frequency induction heater coil 70 where it is held by a shutter 72. At the same time, each of the upper drums simultaneously discharges one article through the aperture in its support plate 17 into an empty compartment 11 of the drum below. In this way the drums are emptied from the uppermost downwards in succession, and can all be replenished by feeding articles into the uppermost drum only. Step-wise rotation of the drum is effected by pins 20 engaged by a driving pawl on a lever 54, Fig. 4, actuated by a motor-driven crank 52. The circuit of the motor 50 is momentarily closed by contacts 30 associated with a conventional coin insertion slide, and thereupon maintained for one revolution of the crank 52 by holding contacts 63 actuated by the lever 54 which is thus reciprocated once to turn the drum one step. A solenoid 73 for closing the shutter 72, as well as a high-frequency thermionic generator 71 for the heater coil, are simultaneously energized with the motor, their circuits being maintained, however, for about 15 seconds by a time-switch 76, during which period the article is heated. When the time-switch breaks the circuit, the shutter 72 opens again and releases the heated article to a delivery opening 68.
Patent GB-458870-A (GB)
Title: Improvements in or relating to machines for applying material in strip form to articles
IPC: B65B7/28
Filed: 1935-08-28
Abstract: 458,870. Applying adhesive sealing- tape. DUREX ABRASIVES, Ltd., Arden Road, Adderley Park, HOOKER, G. S., Finmarken, Elmdon Lane, Marston Green, and FINAN, F., 90, Wakeley Road, Handsworth, all in Birmingham. Aug. 28, 1935, No. 24048. [Class 73] A machine for applying sealing-tape to tins &c. comprises an intermittently operated rotary carrier into which the tins are fed in sequence, and a pair of grippers which engage the articles while the carrier is at rest to rotate the article thus applying the tape. The tins are fed down an incline 3, Fig. 2, to the carrier 1, and the grippers 5, 6, Fig. 1, are carried by shafts 7 and 8. The shaft 7 is intermittently rotated by a chain 26 connected to a disc on the main shaft 15. The shaft 8 is movable longitudinally to effect the gripping of the tins by a cam sleeve 9 operated by a link 23 and cam 21 from the main shaft; the latter is operated from a pedal 18, chain 17 and freewheel sprocket 16. The tape is supplied from a spool 12, the leading end being affixed by hand and the desired length being cut by a knife 14. The tape may be supplied from a pile feed.
Patent GB-996191-A (GB)
Title: Improvements in and relating to self-propelled load handling machines
IPC: B66C7/00
Filed: 1961-07-04
Abstract: 996,191. Propelling vehicle. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. July 4, 1961 [June 27, 1961], No. 24144/61. Heading B7H. A vehicle, e.g., a bridge-crane 1 comprising wheeled carriages 2 running on a track 3, is propelled by means comprising a tube 5 rotated by gears 12 driven by a motor 11, and secured against axial movement relative to the gearcase 6 by flanges 13, threaded nuts secured to the ends of the tube 5 co-operating with correspondingly threaded spindles 8 passing through brackets 9 and having flanges 10 to prevent endwise movement in one direction, whereby the vehicle is moved in one direction or the other when the tube is rotated.