baber/WOPTO huggingface dataset:
Patent GB-1155721-A (GB)
Title: Process and Apparatus for the Production of Superphosphoric Acid
IPC: C01B25/24
Filed: 1966-06-16
Abstract: 1,155,721. Superphosphoric acid; orthophosphoric acid. SINCAT-SOC INDUSTRIALE CATANESE S.p.A. 16 June, 1966 [18 June, 1965[, No. 26937/66. Heading C1A. Superphosphoric acid having a P 2 0 5  content generally of 68-76 wt. per cent is produced by dispersing aqueous orthophosphoric acid in a rising stream of hot gas of increasing crosssection under conditions in which a fluidized bed of droplets of orthophosphoric acid is established, from which smaller droplets of superphosphoric acid are entrained by the emergent hot gas, and separating the superphosphoric acid from said emergent gas. An apparatus for this process comprises a frustoconical or frusto-pyramidal section 5, a restriction 3, a lower section 1 and a gas inlet zone 2. The orthophosphoric acid is injected orthogonally at 4, and the superphosphoric acid formed is separated in (e.g. cyclone) separator 8. Preferably, the hot gases (e.g. air) used are at 250-1100 C., and the rate of gas flow in the restriction is 20-100 m./sec. The emergent hot gases, after separation of the superphosphoric acid therefrom, may be used for preliminary concentration of dilute aqueous orthophosphoric acid (e.g. up to a P 2 0 5  concentration of 45- 50%), and this may be carried out in apparatus of the same type as for the main process (Example 3).
Patent GB-1126799-A (GB)
Title: Mincing machine for raw and cooked meat
IPC: A47J43/07
Filed: 1966-06-16
Abstract: 1,126,799. Mincing foodstuffs. S. STEPHAN [trading as FIRMA A. STEPHAN U SOHNE]. 16 June, 1966 [16 June, 1965; 3 Dec., 1965], No. 26969/66. Heading A4C. In a mincing machine of the type in which an annular cutting ring rotates concentrically within and in contact with another annual cutting ring, said units being slotted for passage of material being minced, separate replaceable cutting elements 9, 14 are secured to the cutter rings 6, 11, preferably by means of a thermoplastic adhesive, suitably in slots 10, 14 in the cutter rings.
Patent GB-927293-A (GB)
Title: Improvements in fluid actuator devices
IPC: B62B3/065
Filed: 1960-08-04
Abstract: 927,293. Reciprocating pumps. GESELLSCHAFT DER L. VON ROLL'SCHEN EISENWERKE A.G. Aug. 4, 1960 [Aug. 4, 1959], No. 27037/60. Class 102(1). [Also in Group XXX] In a pallet truck, a shoulder 13, rigid with the lifting tines, is raised by a hydraulic ram 3 supplied with fluid from reservoir 14 by a pump 2 on actuation of a handle 6, the duct connecting the pump chamber 7 and the ram chamber 9, and part of the duct connecting the reservoir 14 and pump chamber 7 lying in the same horizontal plane which also contains the lower ends of the pump and ram chambers. In operation, during the upward stroke of the handle 6, fluid is sucked into the pump chamber 7 from the reservoir 14 via ducts 15, 21, 16, valve 17 and duct 18, Fig. 2, and during the downward stroke of handle 6, the fluid is forced by the pump piston 2 from chamber 7 to chamber 9 beneath the ram piston 3 via a duct 19, valve 20 and duct 8. When the piston is raised to its highest position, a pin 26, in a slot 26a in the piston, engages the bottom face of a sealing cap 11 thus depressing a plunger 34 to open check valve 27 and allow fluid to flow from the ram cylinder to the reservoir via bores 3e, 26a in the piston 3 and bore 29d in the ram housing 29. One end of duct 21 is closed by a sealing piston 23 controlled by a member 25 which can be manually operated to cause rod 28 to open a check valve 22. To lower the ram, valve 22 is opened by operation of member 25 which simultaneously closes the mouth of duct 16 and opens valve 22 whereby fluid is allowed to flow from the ram cylinder to the reservoir via ducts 8, 21, 15. Specification 927,292 is referred to.
Patent GB-507393-A (GB)
Title: Improvements in or relating to blade-wheel propellers
IPC: B63H1/10
Filed: 1938-09-16
Abstract: 507,393. Feathering blade propellers. VOITH, W., VOITH. H., and VOITH, H., (trading as VOITH, J. M., [Firm of]). Sept. 16, 1938, No. 27054. Convention date, Dec. 8, 1937. [Class 4] The sleeve 24 to which the feathering lever of a blade 10 in a blade wheel propeller is attached extends the whole length of and encloses the blade spindle 25, the sleeve and spindle being secured together by a headed screw 28 and conical surfaces 26, 27. The roller bearings 29, 30 and the cup-leather 32 are then arranged on the outside of the sleeve. The clearance shown between the spindle and the sleeve prevents distortion of the spindle from affecting the roller bearings, while the spindle can be removed without emptying the oil out of the wheel body.
Patent GB-299867-A (GB)
Title: Cutting apparatus for automatic photographic machines
IPC: G03B17/53
Filed: 1928-09-21
Abstract: 299,867. Siemens & Halshe Akt.- Ges. Nov. 4, 1927; [Convention date]. Automatic and coinfreed apparatus.-In a cutting device for separating individual photographs from a strip of predetermined length in an automatic photographic machine, a blade 16 on a pivoted arm 14 is actuated, to cut a sensitized strip 1, when a pin 9 on a spring- urged lever 10 drops into a recess in a cam 7 driven from feed-rolls 4. The lever 10 carries a spring-urged detent 15 engaging the arm 14. On each actuation of the knife-arm 14 a pawl 26 turns a ratchet 25 on a disc 24 carried in a pivoted arm 23. When a pin 29 on the disc engages a projection 30 on the cutter arm the arm 23 is swung to operate a Bowden wire 31 which releases the coin receiver and the stopping arrangement of the machine. By substituting wheels 25 of different size, the number of pictures deliveded during each cycle of the machine can be varied.
Patent GB-1096508-A (GB)
Title: Method of cutting a crystal and device for carrying out this method
IPC: B24B9/16
Filed: 1966-06-17
Abstract: 1,096,508. Grinding. V. C. M. JACON. June 17, 1966 [June 21, 1965], No. 27127/66. Heading B3D. A method of cutting a crystal, such as a diamond, having preferential wear directions comprises moving the crystal over the surface of a circular grinding wheel following lines passing through the centre of the grinding wheel and each forming the locus of points situated at the apex of an invariable angle of which one side of variable length passes through the centre of the grinding wheel, and the other is formed by a straight line of constant length the free end of which moves along a reference line. With a straight reference line, AB, Fig. 2, the movement of the diamond when the angle is 0 degree is along straight lines 01a, 05a, when the angle is 135 degrees, 90 degrees, or 45 degrees, the movement is along curves 02a, 08a, or 03a, 07a or 04a, 06a, respectively. The lines may be formed by guide strips R1, . . . R8 fixed on concentric circles 15, 15<SP>1</SP> and the diamond or its guide on a holder 13 moved in contact with one of the edges 1a, . . . 8a over the surface of the grinding wheel. In another embodiment, the edges are formed by slots cut in a plate. In a further embodiment, the diamond D is mounted in a holder, 13<SP>1</SP>, Fig. 8, having a leg 12<SP>1</SP>, for movement along the reference line and a dog 17 hinged to the arm and fixable at the invariable angle, the dog engaging a spindle 18 at the centre of the grinding wheel so that as the leg 12<SP>1</SP> is moved along the reference line with the dog engaging the spindle, the diamond is moved along a curve over the grinding wheel. The reference line may be in the form of a curve.
Patent GB-701448-A (GB)
Title: Improvements in and relating to the production of pigmented yarns, threads, bands, fibres and the like
Inventor: SKINNER NORMAN PHILIP
IPC: D01F1/04
Filed: 1950-11-08
Abstract: <PICT:0701448/IV (a)/1> An apparatus for spinning dyed viscose, wherein dye viscose is injected into the supply line of undyed viscose, comprises metering pumps for the dye viscose and undyed viscose, said pumps being power - coupled, and either a hydraulic accumulator or a slip clutch for maintaining the supply of viscose mixture at a rate equal to the demand of the spinning pumps.  As shown, metering pump 1 for undyed viscose and metering pump 3 for dye-viscose are connected by a gear box 5, driven by an electric motor 6.  After passing through the mixer 9, the viscose is supplied to a hydraulic accumulator 11.  The latter slides on pistons 16 and 17, fitted to pipe 12 and operating in the concentric bores 14, 15 of the accumulator.  The spinning solution is diverted by a plug 21 through holes 22 into the larger bore, and returns to the pipe 12 above a second plug 24 through the holes 23 from the narrower bore. When the demand for viscose by the spinning pumps is less than the supply from the metering pumps, the accumulator rises under the excess pressure, since its volume is thereby increased.  When the projection 25 makes contact with 26, the speed of the motor 6 is reduced, and if the accumulator continues to rise, 25 contacts 28, and the motor is stopped.  Conversely, if the demand for viscose is greater than the supply, the excess is provided from the accumulator, which then falls under gravity as its capacity decreases.  When 25 makes contact with 29 the motor 6 is restored to its normal speed. Alternatively the hydraulic accumulator 11 may be replaced by a slip clutch inserted between the motor 6 and gear box 5.  When the demand for viscose by the spinning pumps falls, pressure builds up in the system and the clutch slips, thus reducing the speed of the metering pumps 1 and 3.  Specification 374,356 is referred to.
Patent GB-461361-A (GB)
Title: Improvements in or relating to suspended or overhead conveyors
IPC: B61B10/02
Filed: 1935-10-03
Abstract: 461,361. Overhead railways. KING, D. M. Oct. 3, 1935, No. 27341. [Class 104 (ii)] In an overhead conveyer, such as that described in Specification 428,860, comprising a track 10 for the trolleys carrying the driving chain &c., and a track 11 for the load-supporting trolleys, means are provided, operated by the chain &c., for imparting an additional movement to the load trolley when it is out of driving engagement with the chain, as when moving on to a side track 13. The device may comprise an arm 16 pivoted at 17 for horizontal and vertical movement and extending across the path of the chain, so that the latter swings it horizontally and causes an arm 18 carried thereby to push the trolley along the track 13. The trolleys in passing the arm 18, engage a cam portion 18<1> and lift it, and the bar 16, about the horizontal pivot at 17. In a modification, rods carrying pushers for imparting step-by-step movements to trolleys on the line 13, are pivotally connected to the arm 18.
Patent GB-281453-A (GB)
Title: Improvements in or relating to tyres for use on motor road and other vehicles
IPC: B29D30/52
Filed: 1926-11-01
Abstract: 281,453. Rapson, F. L. Nov. 1, 1926. Jackets and covers; tread projections and surfaces.-A low-pressure tyre for replacing a high-pressure tyre without requiring alteration in rim and wheel diameters, and without affecting the gear-ratio of the vehicle, is formed of the same overall diameter as the replaced tyre the width being increased by 10 per cent or more without substantial alteration in the shape and dimensions of the side walls. The casing is formed with flattened tread portion c and a wider tread adapted to engage the road fully irrespective of the load, the edges of the tread being gradually tapered, or formed with extension-ribs f towards the side walls h. The ribs f which are adapted to engage the road when the tyre is fitted to an inclined wheel, may be formed with spaced recesses k. Annular ribs g may be provided between the ribs f and the widest part of the cover. To prevent uneven wear of the tread blocks s, these are arranged between continuous tread ribs r. Specifications 195,231 and 229,166 are referred to.
Patent GB-1102348-A (GB)
Title: Anti-corrosive primer coating material having electrostatic photographic properties based on epoxy resins
IPC: G03G5/05
Filed: 1965-06-28
Abstract: Anti-corrosive primer coating materials having electrostatic photographic properties comprise (1) one or more epoxy resins and (2) one or more isocyanates or isocyanate resins having at least two isocyanate groups, as curing agent for the epoxy resin(s), and (3) a photoconductor. Photoconductors specified are zinc oxide and selenium compounds.  The compositions may also contain sensitizers and solvents.  Conventional photosensitive coating materials used in comparative examples all comprise organic solvents, special grade ZnO and (a) a vinyl-chloride-vinyl acetate copolymer; (b) a silicone resin and a vinyl acetate copolymer; and (c) an epoxy resin and an amine adduct secondary curing agent.ALSO:Shot-blasted steel panels are coated, by spraying with a primer coating material having electrostatic photographic properties comprising an epoxy resin, an isocyanate or isocyanate resin having at least 2-NCO groups, as curing agent for the epoxy resin organic solvents and a photoconductor.  Optional ingredients of the compositions are sensitizers.  The coatings are cured in a hot air drying furnace and may be recoated with, e.g. a coal tar epoxy paint.  For comparative purposes compositions comprising organic solvents, special grade ZnO and (a) a vinyl chloride-vinyl acetate copolymer, (b) a silicone resin and a vinyl acetate copolymer, and (c) an epoxy resin and an amine adduct secondary curing agent are used.
Patent GB-1463125-A (GB)
Title: Glass body with transparent semiconductor metal oxide film
IPC: B60S1/02
Filed: 1974-06-20
Abstract: 1463125 Metal oxide-coated glass RCA CORPORATION 20 June 1974 [20 June 1973] 27393/74 Heading C1M [Also in Division B2] An article comprises a substrate 2 composed of a glass which comprises more than 3% by weight of alkali metal oxide, the substrate comprising a surface region 4 at least partially depleted of alkali metal ions to a depth of at least 400 Š, the alkali metal ions not being replaced by other ions except, possibly, protons, and a transparent semi-conductive metal oxide film 8 on said surface region. The metal oxide film 8 is preferably applied by spraying the ion-depleted substrate glass 2, while in an oven at, e.g. 450-500‹ C., with a solution of a compound which may be oxidized to the corresponding metal oxide. Preferably the spray is formed by mixing the solution with a carrier gas in an atomizer. The oxide film 8 may be tin oxide doped with antimony oxide (in which case the solution may comprise SnCl 4  and SbCl 3  in ethanol, water and hydrochloric acid) or indium oxide doped with tin oxide (when the solution may comprise InCl 3  and SnCl 4  in methanol, water and hydrochloric acid). The glass substrate 2 may have the composition (weight per cent): (a) SiO 2  63À2, SrO 10À7, K 2 O 9À9, Na 2 O 7À5, Al 2 O 3  3À5, CaO 1À6 and MgO 1À2; or (b) SiO 2  50À6, PbO 21À8, K 2 O 9À8, Na 2 O 5À9, Al 2 O 3  4À8, CaO 3À7 and MgO 2À6. The depletion of alkali metal ions (preferably at least 90% of which are removed in said surface region 4) may be carried out by heating the glass substrate 2 in an oven 20 (e.g. to 250-450‹ C.), and subjecting it to an A.C. or D.C. voltage (e.g. 10-425 V.) in a nitrogen atmosphere. The substrate 2 may have electrodes 10, 12 (e.g. of colloidal graphite, platinum or palladium) applied thereto, current being supplied from A.C./D.C. supply 18. Attached to electrodes 10, 12 may be graphite felt pads 14, 16. The oxidecoated glass products may be used as electrodes or resistors.
Patent GB-485976-A (GB)
Title: Improvements relating to containers for gas under pressure
IPC: F17C1/06
Filed: 1937-10-08
Abstract: 485,976. Making gas-storage cylinders. BULLOCK, W. E. Oct. 8, 1937, No. 27424. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVIII] Jointing.-A container for gas under pressure comprises a length of metal tube 5, to which domed ends 6 are secured by spot welding. The tube and its ends may engage also by interlocking joints, e.g. by screw-threads, or by parallel corrugations, as shown, the end being heated to expand it before being passed over the tube, so that the joints engage on cooling. In addition the exposed ends of the joints are welded, in order to secure gas tightness. The container may be strengthened by wire winding, as shown. A bush 9, for the attachment of fittings, is welded in an orifice in one of the domed ends.
Patent GB-503393-A (GB)
Title: Improvement in signal devices
IPC: F21V19/04
Filed: 1937-10-04
Abstract: 503,393. Two-part couplings. WALLACE & TIERNAN PRODUCTS, Inc. Oct. 4, 1937, No. 27439/38. Convention date, Oct. 6, 1936. Divided out of 503,333. [Class 38 (i)] [Also in Groups XI, XXXV, and XXXVII] In a signal lamp having a carrier 15 for a plurality of electric lamps 30 and means, automatically operative on failure of the positioned lamp, to move the carrier to bring another one into position where it is connected in the circuit, the carrier is driven by an electric motor adapted to operate so long as current is supplied thereto, and means are provided for preventing supply of current to the motor sc long as current is flowing in the lamp circuit. In one form, the apparatus according to the invention is identical with that described with reference to Figs. 2 to 6 of the drawings accompanying Specification 503,333.
Patent GB-697336-A (GB)
Title: Improvements in or relating to machines for folding binding material around the edges of workpieces
IPC: A43D8/40
Filed: 1950-11-10
Abstract: 697,336. Binding edges. BRITISH UNITED SHOE MACHINERY CO., Ltd. (Vereinigte Schuhmaschinen Akt.-Ges.). Nov. 9, 1951. [Nov. 10, 1950] No. 27467/50. Class 42 (i). In a machine for folding around the edge of a workpiece, binding, material attached to a margin adjacent the edge, and comprising means for feeding a workpiece, folding means for turning successive marginal portions of the binding material over its edge, and a hammer for pressing such portions against the body of the workpiece, means, deriving its actuation from the hammer, is provided for wiping previously turned over portions of the binding inwardly of the workpiece away from the edge thereof, in a direction substantially at right angles to the direction of work feed. In a machine such as that described in Specification 547,294, a plate-like bracket 8 is fixed on the head of the hammer 2, and has threaded into it a headed screw 12, on which is pivoted a bellcrank lever 16. A resilient stretching and wiping finger 22, the forward position of which extends downwardly. in front of the hammer 2 and has a serrated, work-engaging edge, is fixed in a groove 18 on the bell-crank lever 16, by a screw 20. The bell-crank lever 16 is urged clockwise as seen in Fig. 1, by a spring 28 which acts between it and a projection 26 on the bracket 8, the extent of movement in this direction being limited by a stop screw 38 on the arm 30 of the lever 16, engaging the projection 26. The arm 30 also carries a screw 32, which is adapted to contact a plate 34 attached to the machine frame 36 and move the lever 16 in an anticlockwise direction, against the action of spring 28, when the hammer 2 has reached a forward position during its idle return movement. As the hammer 2 moves rearwardly to feed the workpiece, the screw 32 leaves the plate 34, permitting the lever 16 to move in a clockwise direction,'and causing the finger 22 to wipe the binding material inwardly of the edge of the workpiece.
Patent GB-365614-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/32
Filed: 1930-09-15
Abstract: 365,614. Tunnel kilns. HARTFORD, F. M., 310, West Broad Street, Columbus, Ohio, and KIER, S. M., Salina, Pennsylvania, both in U.S.A. Sept. 15, 1930, No. 27568. [Class 51 (ii).] A tunnel kiln is provided with means extending through the roof, and spaced transversely of the tunnel, for delivering combustible material downwards into the chamber, together with heating means extending through the side walls, the ware being thus heated from both sides and from the top. In the double track kiln shown fuel-feeding, devices 38<1> deliver through apertures 38 in the suspended roof, and furnaces 2 deliver hot gases through openings 37 in the side walls of the high temperature or maturing zone 10. The ware is stacked to provide vertical passages 36 into which the fuel-feeding devices 38<1> deliver ; by regulating these devices the vertical location of the combustion zone may be varied to obtain uniform heating of the ware. The space above the suspended roof is closed by slabs 50 to form a duct through which air is forced by a blower 51, the. air thus preheated being passed into the water-smoking zone 9. The blower 51, or an additional blower, may also supply air to the cooling zone 11. Offsets 21a are formed in the walls of the oxidation zone 9a to provide a tortuous path for the gases, across and counter to the path of travel of the ware. The walls of the water-smoking and dehydration zones are provided with ports 40 through which the gases are withdrawn by a fan 21b. The divisional wall 29 between the car tracks may comprise a conduit 43 which may alternatively be used for the passage of cooling air, or for the withdrawal of gases from the tunnel. The metallic parts of the cars 7 are protected from heat by heat-insulating platforms 27, by sand seals 31, 34, and by ledges 35 on the side walls of the kiln which overlap the platforms 27 to baffle the passage of heat and gases. The ware may be set on perforated supports on the cars so that gases from the side burners may pass into the supports and heat the ware from below. Specifications 367,396 and 367,397 are referred to.
Patent GB-1326459-A (GB)
Title: Pneumatic impulse selector switch shuttel valve
IPC: F15C3/02
Filed: 1971-06-14
Abstract: 1326459 Valves HOERBIGER VENTILWERKE AG 14 June 1971 [26 June 1970] 27728/71 Heading F2V Pulses from an input 9, Fig. 2, are alternately directed to two outputs 11, 12 by a sealing member 10 on a piston 3 which is moved by a spring 6 to close the outlet 12 when the flow from the input 9 ceases. The following pulse thus flows to the outlet 11 which is again closed by movement of the piston 3 by a spring 7 when the flow ceases. The sealing members 10 forms a frictional fit on the piston and waves relatively to it each time it engages a wall of a recess 8. Impulses applied to a port 31 operate the valve shown in Fig. 3 in which a sealing ring 10 alternates between grooves 25, 26. Spring plates 17, 18 operated by the movement of the piston connect the outlet 11 or 12 which is not in use to a vent 23 or 24.
Patent GB-464031-A (GB)
Title: Improvements in or relating to emergency braking systems for road vehicles
IPC: B60T13/74
Filed: 1935-10-09
Abstract: 464,031. Electrically - controlled brakes. MORLAND, W. V., and PARKINSON, T. H. Oct. 9, 1935, No. 27835. [Class 103 (i)] An emergency-brake system for road vehicles comprises an electric motor which when energized drives a toothed segment or equivalent which carries a pawl engaging a pivoted rack which when the maximum or a predetermined braking pressure has been reached depresses the rack to break the circuit of the motor, the pawl and rack acting also to hold the brake applied. The segment 5 geared to the motor 4 and pivoted at 5<1> applies the brake through an arm 6 which may be freely pivoted at 6<1> on the segment and is connected to the pull-rod 8 or to the brake pedal 9. The segment engages the arm by an abutment 7. The segment carries a pivoted pawl 10 engaging a rack 11 pivoted at 12 and when the maximum brake pressure has been applied, the reaction or rebound of the segment causes the pawl to depress the rack whereby a switch 14 is actuated to break the circuit of the motor. The pawl may instead be caused to depress the rack when any desired braking pressure has been applied by providing on a stationary part an adjustable stop 15 with which the tail of the pawl engages after a predetermined travel of the segment. When the arm 6 is connected to the pedal 9, the arm 6 may be locked to the segment by a cam 17 so that pedal pressure may be applied to enable the pawl to be released from the rack. The control switches which may be arranged in the driver's cab and in other positions may be time switches adapted to cut-out the motor in the event of failure of the rack device, to prevent overloading of the motor.