baber/WOPTO huggingface dataset:
Patent GB-1499948-A (GB)
Title: Process for recovering anthracene
IPC: C07C7/00
Filed: 1976-06-12
Abstract: 1499948 Purifying anthracene KHARKOV POLITEKHNICHE INST IM V I LENINA and UKRAIN N I UGLEKHIMICHE INST 12 June 1976 24460/76 Heading C5E Anthracene is purified by treating crude anthracene with N,N-dimethylacetamide to produce suspension I, separating suspension I into a liquid phase containing soluble impurities and a solid phase containing anthracene, treating the solid phase with N,N-dimethylacetamide at 52-135‹ C. to obtain suspension II of insoluble impurities in a solution of anthracene in dimethylacetamide, separating the insoluble impurities from suspension II, cooling the solution to -10‹ C. to +40‹ C. to obtain suspension III containing anthracene crystals, and recovering the anthracene therefrom. The recovered anthracene crystals may be recrystallized from N,N-dimethylacetamide.
Patent GB-315608-A (GB)
Title: Improvements relating to brake operating gear for trailing vehicles
IPC: B60T7/20
Filed: 1928-08-28
Abstract: 315,608. Bate, B. D. Aug. 28, 1928. Actuated by relaxation of pull. - Brake-operating gear for trailing vehicles, of the type actuated by relaxation of the pull of the tractor, comprises a supplementary draw-bar e arranged within the main draw-bar b of the trailer and connected at the rear end to the trailer brake gear, the front end being provided with a shackle f within the shackle a of the main drawbar b, a draw bolt d passing through holes in the shackle f and elongated slots c in the shackle a, whereby the bars band e are capable of relative movement to release and apply the brakes. The rear end of the bar e is pivoted to a rod h having a collar i between which and an arm k on the brake shaft m is a spring j, a collar j<1> on the rod h engaging. the rear of the arm k. The ends of the shaft m carry arms n each connected to one end of a brake band o around a brake drum p. Each brake band o is anchored at the forward side of the brake drum to a bolt g, which is adjusted by means of a nut r and lock-nut s to adjust the brake band. When the pull of the tractor is relaxed, the bolt d moves back in the slots c, thus giving the shackle f, bar e, and rod h a backward movement, causing the spring j to apply the brakes. The bands o have a self-wrapping action, while when the trailer is reversed the bands unwrap and the brakes are not applied. By securing a pin d in front of the shackle f instead of through it, the brakes may be held in the applied position.
Patent GB-1513394-A (GB)
Title: Dampener for lithographic printing plates
IPC: B41F7/26
Filed: 1975-06-10
Abstract: 1513394 Dampening in rotary presses DAHLGREN MFG CO LTD 10 June 1975 [17 June 1974] 24810/75 Heading B6C A lithographic dampening apparatus comprises a hydrophilic transfer roller 10 and a smooth, resilient metering roller 12 adjustably urged together in indented relation to transfer fluid 14a to ink 100 on a form roller 90 and then to printing plate 112 the metering roller being driven at a surface speed less than the form roller 90 which drivers transfer roller 10 by friction fluid interface. The transfer roller 10 rotates at a slower surface speed than the form roller 90 so that the required relative proportions of ink and fluid 14a are maintained. Cylinders 24 and (26), Fig. 1 (not shown) pivot links 16 and (18), Fig. 1 (not shown) respectively to move roller 10 into and out of adjustable engagement with form roller 90. A friction brake (60), Fig. 1 (not shown) is disposed about the shaft of metering roller 12. The construction of the rollers is described. A vibrator roller 98 is provided to engage form roller 90.
Patent GB-1424727-A (GB)
Title: Tools for bending
IPC: B21D7/06
Filed: 1973-05-24
Abstract: 1424727 Bending tools HOLYWELL ENG Ltd 22 May 1974 [24 May 1973] 24934/73 Heading B3E A tool for bending the ends of rods, e.g. to secure mesh strutting or lagging panels to the supports of mine roadways, comprises a handle 1 having at one end a bore 2 to receive a rod end, and at the other end a cranked or bent bar 3 supporting a generally rectangular head 4, the distal face 5 of which is convexly curved, while two opposed parallel faces 6, 7, each contain intersecting grooves 8, 9 sized to receive a rod end.
Patent GB-806643-A (GB)
Title: Improvements in and relating to a device for regulating the quantity of a flowing medium discharged from a nozzle
Inventor: HOENGER GUIDO
IPC: G05D7/01
Filed: 1955-08-31
Abstract: 806,643. Regulating gas burners. SWISS GAS STOVE CO. SOLOTHURN. Aug. 31, 1955, No. 24939/55. Class 75(1) [Also in Group XXIX] In a device for regulating the flow of a fluid discharged from a nozzle in which both a passage upstream of the nozzle and the nozzle opening are changed by two regulating members operatively connected together, the regulating members are arranged in a manner allowing play of such members transversely to the regulating movement whereby frictional resistances may be avoided. The device shown regulates the supply of gas to a burner and comprises a casing 1 having a gas inlet 3 and a nozzle 2 discharging into the mixing chamber 14 of the burner. The gas inlet 3 is controlled by a disc valve 11 and the-nozzle 2 by a needle valve 10, both valves being connected together by a rod 9 adapted to be moved axially by an angle lever 8. The latter is pivoted to the casing at 7 and one end is pivoted to the rod 9 and the other end is secured to a diaphragm 6 held between the casing and a cover 4. A regulating screw 5 is threaded into the cover 4 and has a bore with a tapered end containing a spring-urged ball 18 which abuts the diaphragm 6. Inward movement of the regulating screw 5 therefore moves the rod 9 downwardly to open the needle valve 10 and close the disc valve 11. Under a certain closing pressure of the disc valve the ball 18 lifts off its seat to prevent the disc valve from being overloaded. The needle valve 10 has a cylindrical extension 21 which engages loosely in the nozzle 2 in the intermediate positions of the needle valve. The extension 21 has an axial bore 22 opening at its inner end on the outside of the rod 9 to provide a small by-pass to the needle valve. Alternatively grooves may be provided on the seat of the needle valve or a separate nozzle may be provided. The device is arranged so that in the regulating range of the needle valve the disc valve has no regulating effect and vice versa: and the operating means is preferably arranged so that it returns automatically when released from a position corresponding to the regulating range of the disc valve either to the full open position of the needle valve or to the closed position of the disc valve. The diaphragm may be replaced by a labyrinth packing. The nozzle may be regulated by a diaphragm instead of a needle.
Patent GB-831577-A (GB)
Title: Rotary printing machines
Inventor: KNOPS IVAN PETER
IPC: B41F31/30
Filed: 1957-08-07
Abstract: 831,577. Inking-apparatus. DE LA RUE CO. Ltd., [formerly DE LA RUE CO. Ltd., T.]. April 3, 1958 [Aug. 7, 1957], No. 24946/57. Class 100(2) In a rotary printing machine, an inking unit comprises a positively driven fountain roller (3) in communication with a supply of ink, a plate cylinder (1) positively driven in the same direction and carrying on one end a cam consisting of a raised portion (6), an intermediate portion (7), and a trough portion (8), a cam roller (23) adapted to contact said cam, an inking roller (2) freely journalled in bearings (10) in pivoted arms (11), and means for moving the arms in response to movement of the cam roller, whereby the inking roller dwells alternately on and is driven by the fountain roller and the plate cylinder, and runs freely between its periods of contact. A shaft 15 carries lugs 14 and is rocked through a link 20 by a lever 18 carrying the roller 23 and pivoted at 19. The lever 18 and link 20 are connected by an eccentric pin 21 adjustable by a handle 22 to keep the roller 2 clear of the cylinder 1 when desired. The lugs 14 are connected to the arms 11 through spring-controlled eye bolts 13 having handwheels 16 to adjust the pressure between the roller 2 and the plate, while pressure between the rollers 2, 3 is controlled by adjustable tension springs 17. The cam portions 6, 7, 8 are connected by sloping riser members 9 and are made in segments so as to be changeable.
Patent GB-957901-A (GB)
Title: Thermal insulation of components of a low-temperature plant
IPC: F17C13/00
Filed: 1961-07-10
Abstract: 957,901. Liquefying gases. SULZER FRERES S.A. July 10, 1961 [July 29, 1960], No. 24958/61. Heading F4P. A plant for cooling or liquefying gases, e.g. hydrogen or helium, comprises two components, each of which is provided with a jacket of porous solid insulating material and both of which are disposed within a vacuum vessel having a vacuum of 10<SP>-1</SP> to 10<SP>-3</SP> mm. Hg. As described, a vacuum vessel 1 has a detachable cover 2 and has disposed therein a heat exchanger 4 and a rectifying column 5; the column 5 is covered with a jacket 6 of granulated insulating material covered by a perforated sheet metal shell 7, and the heat exchanger 4 is surrounded by a mat 8 of synthetic resin foam which is clipped to the heat exchanger. The insulating material may be in powder, granular or fibrous form, e.g. cork, synthetic resin foam, mineral wool, kieselguhr, asbestos fibre, glass fibre or slag wool fibre. To reduce thermal radiation metal powder may be incorporated into at least one of the jackets or the latter may have attached thereto a metal foil skin.
Patent GB-250088-A (GB)
Abstract: 250,088. Stonier, W. J. Aug. 12, 1925. Interrupters, mechanical; rotary distributors; cases.-A low-tension current interrupter and a high-tension current distributor are mounted within a casing formed by a gun-metal base plate 5 and cover 4 of insulating material which may be substituted for the low tension current distributor normally attached to the engine of a Ford car. Oil is prevented from entering the casing by providing a disc 2 on the cam-shaft 3 and packing 24 within the cam 6. A projection 8 carried by the interrupter arm 7 passes through an opening in the flange 9 on the base plate 5 into engagement with the actuating cam. The distributor consists of a nickel terminal 17 mounted on insulation 16 and receiving current from the central contact 23 for distribution to fixed contacts 20 connected to the plugs.
Patent GB-211424-A (GB)
Title: Improvement in interchangeable crushing plates for crushing machines
IPC: B02C1/10
Filed: 1923-10-08
Abstract: 211,424. Larsson, G. H. Oct. 8, 1923. Crushers with vibrating jaws. - Interchangeable crushing-plates for machines for crushing stone &c., of the kind provided with teeth or ribs on both sides so that they can be reversed, are formed with the teeth or ribs terminating at a distance from the edges of the plate so that the plate has flat surfaces on both sides at two opposite edges at least, or at all edges if desired, the flat surfaces being adapted to rest against bearing-surfaces of corresponding shape on the machine frame or on seatings provided therein. As shown, the rectangular crushing-plate 1, Figs. 3 and 4, provided on both sides with longitudinal teeth or ribs 2 of triangular cross-section, has the ribs terminating short of the edges of the plate so that at all four edges and on both sides of the plate there are comparatively wide plane surfaces 3 to bear against similar surfaces 9, Figs. 5 and 6, on the seating 5. The surfaces 3 are retracted so as to be on a level with the bottoms of the grooves between the ribs 2, and the plates are provided on both sides at the bottom of the grooves with plane surfaces 12 which bear against corresponding surfaces 11 on the machine frame or on seatings therein, theribs 2 projecting into the slots 10 between the beams or lists 6 of the seating 5. The seating 5 for the stationary plate has transverse lists 13, Fig. 1, on its rear side to engage slots in the frame wall 7, and the seating 5 for the movable plate has an oblique surface 14 at one end. The crushing-plate is formed with internal channels 4 which may extend either longitudinally or transversely.
Patent GB-605578-A (GB)
Title: Improvements in mine cooling
IPC: E21F3/00
Filed: 1945-09-27
Abstract: 605,578. Mine cooling. McGUINNESS. M: Sept. 27, 1945, Nos. 25053/45, 33596/45, and 5519/46. [Class 29] A refrigerant such as carbon dioxide is liquefied at the surface and conveyed through a high pipe 7 to the mine workings 16 where it is vaporized in an evaporator ..14 and may drive an expansion engine 11. The refrigerent flows in a closed circuit, the up-flow pipes 18 for the expanded refrigerant being arranged in the downcast ventilating shaft 17 so as to abstract heat from the incoming air. The downflow pipe 7 is arranged in the upcast ventilating shaft 8 so that the air removes from the refrigerant the heat due to autocompression in the high column. The carbon dioxide is liquefied by a compressor 3, cooler 5 and sub-cooler 6 and fed to the descending column 7 which may be 6,000 feet in height, to the engine 11 driving a dynamo 12. An intermediate decompression engine 11a may be provided, driving a dynamo 12a. From the engine 11 the exhaust passes to the evaporator 14 at the working face, and thence through the pipes 18 back to the compressor. Ventilating air supplied by a fan 15 is cooled in the shaft 17. Valves 21 divide the circuit into sections and close automatically on leakage of refrigerant. The exhaust from the engine 11 may be passed to several working positions by valve-controlled pipes.
Patent GB-1065063-A (GB)
Title: Automatic bowling score computing and display device
Inventor: REYNOLDS EUGENE EARL
IPC: A63D5/04
Filed: 1964-03-17
Abstract: 1,065,063. Bowling alley scoring apparatus. BRUNSWICK CORPORATION. March 17, 1964, No. 25075/65. Divided out of 1,065,061. Heading G4B. The description is identical with that of the parent Specification but the claims differ.
Patent GB-479741-A (GB)
Title: Improvements relating to roller bearings
IPC: F16C19/36
Filed: 1937-09-17
Abstract: 479,741. Conical roller bearings. BRITISH TIMKEN, Ltd. Sept. 17, 1937, No. 25225. Convention date, Sept. 21, 1936. [Class 12 (i)] A bearing has a coni cal outer race tracl with a thrust rib 5 a the larger end, and a roller spacing cage com prising end rings 6, 7, with integral bridges 8. The latter are deflected outwardly at 9 from the straight so as to form a long straight portion 10 adjacent the small end ring 7 and a relatively short portion 11 adjacent the large end ring 6. The portions 11 engage and guide the rollers 3. The cage is of smaller diameter than the imaginary cone of the roller axes. To facilitate assembly the bridges 8 are initially deflected inwardly as indicated in Fig. 3, so that the rollers can pass the rib 5.
Patent GB-445028-A (GB)
Title: Improvements in or connected with machines for applying labels to bottles
IPC: B65C9/06
Filed: 1934-09-01
Abstract: 445,028. Conveyers. FLOWER, A. L., Union Place, Marshall Street, Leeds. Sept. 1, 1934, No. 25240. [Class 78 (i)] [See also Group XV] In a labelling-machine, bottles are moved from a vertical position into a horizontal position by means consisting of an abutment having a rounded end, and a radial arm which lifts the bottle over the rounded surface. The bottles are delivered to a table 4, either by hand or by a conveyer 3, and are lifted by arms 7, operated by a Geneva cross 13, to slide over the curved abutment 5 and occupy a horizontal position. The next movement of the arms pushes the bottle down a slope 11. For dealing with bottles of different sizes the abutment is provided with contoured spacing blocks.
Patent GB-613927-A (GB)
Title: Improvements in or relating to radio communication systems
IPC: H01P1/213
Filed: 1945-09-29
Abstract: 613,927. Aerial coupling arrangements; multiplex radio signalling. YEO, R. A., WATSON, A. G. D., JONES, J. H., and WRIGHT, C. S. Sept. 29, 1945, No. 25340. Drawings to Specification. [Class 40 (v)] Several transmitters or several receivers tunable over a band of frequencies are conconnected to a common aerial through arbitrary lengths of transmission line, each of which is shunted by a single-adjustment tunable filter tuned to the frequency of its associated transmitter or receiver and located at a distance from the common junction which is effectively one-quarter wavelength at a frequency within said band, the lines between each filter and the junction acting as an impedance converter for all frequencies in the band. In a system with three transmitters or receivers using different fixed frequencies in a single band, the filters are sharply tuned and the quarter-wave feeders are referred to the sum of the wavelengths of 'the other two transmitters or receivers less the wavelength of the associated transmitter or receiver. In another system with two or more transmitters or receivers using different fixed frequencies in a single band, the filters are sharply tuned and the quarter-wave feeders are referred to the average frequency of the other transmitters or receivers or the mean frequency of the range of frequencies thereof. Two or more groups of transmitters and receivers working in distinct frequency bands and connected as already described may each be connected to the common aerial through a band-pass filter covering the frequency range of the associated group, connected in series with a quarter-wave feeder based on the mean or average of the average frequencies of each of the other groups, or the mean or average of the mean frequencies of the range of frequencies of each of the other groups.
Patent GB-1006308-A (GB)
Title: Improvements in or relating to pressing apparatus
IPC: B21K1/02
Filed: 1964-06-19
Abstract: 1,006,308. Metal working presses. REAL PATENTAUSWERTUNGS-ANSTALT. June 19, 1964 [July 9, 1963], No. 25371/64. Heading B3H. A pressing assembly comprises a plurality of work gripping clamps 8<SP>1</SP>, 8<SP>11</SP> mounted on an intermittently rotating turret 13, Fig. 3, and adapted to convey a workpiece cut by knife 1, Fig. 1, from wire stock 2, to a pressing station D where it is pressed between dies 18, 19, and then to an ejection station F. The turret 13 is driven by a Maltese-cross mechanism or by a shaft 27 having a worm 14 engaged by rollers 15, 15<SP>1</SP>, 15<SP>11</SP> on a disc 38 connected to the turret. The wire stock 2 is fed by mechanism 7 against an adjustable stop 33, severed by an apertured knife 1 driven through lever 3 by cam 31, and transferred thereby to the clamp at station A into which it is pressed by a pusher 9, Fig. 2 (not shown). At the pressing station D the workpiece is held by spring-loaded pins 20, 22, Fig. 4 (not shown) passing through the upper and lower dies 18, 19 whilst the clamp jaws are opened by a wedge 24 carried by the press ram 34. The latter is actuated by an eccentric 26. At the ejection station F the jaws are opened by a member 25 and the pressed article falls into a container. The press which may be arranged vertically or horizontally is used for pressing ball-pen points. Further working operations may be performed at the stations B, C, E.
Patent GB-154177-A (GB)
Title: Improvements in or relating to electric arc projection apparatus
IPC: H05B31/00
Filed: 1920-09-02
Abstract: 154,177. Etablissements Continsouza, Soc. Anon. Nov. 19, 1919, [Convention datel. Arc lamps.-In a projection lamp, all the adjustments are effected by means of handles on shafts which have only rotary motion, no flexible connexions or universal joints being employed. The back of the projection lantern can consequently be completely closed except for the holes for the shafts. As shown, carbons are carried by arms 8, 9 on shafts 6, 7 capable of axial and rotary motion. Worms 2, 3 engaging worm-wheels on these shafts can be rotated by a knob 25 to feed the carbons and can be moved longitudinally by a knob 26 to adjust the vertical position of the arc. On the carbon-holder shafts 6, 7 are also series of annular ribs forming racks gearing with pinions 10, 11 operated by knobs 23, 24 for lateral adjustment of the carbons. A loose bevel wheel 12 on the shaft 6 gears with a bevel pinion 13 operated by a knob 22 and with a second bevel pinion 14 mounted on a screw 15 passing through a nut 17 on the outer part of the telescopic carbon-holder 8; the screw shaft is guided by an arm 16 which is loose on the shaft 6 and has a sliding connexion with the inner part of the carbon-holder 8. The whole mechanism can be adjusted along the axis of the lantern by a screw 20.
Patent GB-1352035-A (GB)
Title: Production of titanyl sulphate solutions
IPC: C22B34/12
Filed: 1971-04-19
Abstract: 1352035 Titanyl sulphate solutions; titanium dioxide BAYER AG 19 April 1971 [28 March 1970] 25419/71 Headings C1A and C1N Titanyl sulphate solutions substantially free from trivalent iron and containing sulphuric acid are prepared by grinding and drying titanium containing slag, grit being separated off from the ground and dried slag, magnetically separating iron of 40-350 micron particle size from the grit, decomposing the ground and dried slag with sulphuric acid, extracting the resulting decomposition cake to form a decomposition solution and undecomposed solids, mixing a stream of part of the decomposition solution containing excess sulphuric acid with the iron at less than 65‹ C. in such a proportion to adjust the Ti (III) concentration to 50-90 g./l. (calculated as TiO 2 ), supplying this concentrated Ti (III) solution to the decomposition solution before or after separation of the solids. The titanyl sulphate solution may be clarified, filtered, concentrated, and thermally hydrolysed to produce TiO 2 .
Patent GB-218892-A (GB)
Title: Improvements in or relating to seat guards for water closets
IPC: A47K13/16
Filed: 1923-10-12
Abstract: 218,892. Cranko, I. C. Oct. 12, 1923. Seat-guards in sheet form are folded and attached in a pack to a board e adapted to be slidden into a casing. The folded guards may be folded over one edge of the board as shown or laid flat on one side of it. The guards are withdrawn for use by pulling the part j. Specification 193,514 is referred to.
Patent GB-649492-A (GB)
Title: Improvements in and relating to hydraulic high-pressure rotary engine or pumps
IPC: F04C2/36
Filed: 1948-09-30
Abstract: 649,492. Rotary engines. BAGHUIS, L. H. Sept. 30, 1948, No. 25513. Convention date, Oct. 10, 1947. [Class 110(ii)] The engine of the type described in Specification 602,836 has an outer rotor 3, carrying rotary abutments 8, and a stator 2 carrying pistons 6, 7, the stator being supported on a fixed shaft 1 by means of an elastic member 12. The member 12 may be of rubber or the like and have splines on its outer and inner surfaces. This allows the shaft 1 to deviate from its axis without affecting the running of the engine. Passages 5, 5a act as inlet and outlet conduits for working fluid. The stator 2 has a toothed periphery 11 on which the pistons are mounted, and around which the toothed peripheries of the abutments run. The pistons 6, 7 and recesses 9 extend axially through a shorter distance than the abutments and the teeth 11, so that the abutments remain coupled continuously during rotation of the latter.
Patent GB-375620-A (GB)
Title: Improvements in or relating to radio and other high frequency receivers
IPC: H03D11/02
Filed: 1931-09-12
Abstract: 375,620. Valve amplifying circuits. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 12, 1931, No. 25637. Convention date, Sept. 13, 1930. [Class 40 (v).] In a circuit of the super-regenerative type, periodic " quenching" is secured by rhythmically varying the capacity of a condenser in a tuned circuit. As shown a separate oscillator 15 is caused to vibrate the diaphragm of a condenser microphone 16 situated in the electrostatic field of a condenser 11, thereby periodically throwing the plate circuit, 10, 11 out of tune with the input circuit 3, 4. The tuned input circuit 3, 4 may be replaced by a piezoelectric crystal.