baber/WOPTO huggingface dataset:
Patent GB-472108-A (GB)
Title: Improvements in or relating to tubular heat exchangers such as air pre-heaters
IPC: F23M20/00
Filed: 1937-04-02
Abstract: 472,108. Heating air. BABCOCK & WILCOX, Ltd. April 2, 1937, No. 9381. Convention date, June 4, 1936. [Class 64 (i)] An air heater at the side of a water-tube boiler consists of groups of vertical smoketubes 38 arranged in zigzag formation in a casing along which the air passes in a sinuous course over transverse baffles 42 placed between the tube groups. The furnace gases pass upwards and downwards through the tube groups, which open at their upper ends in a return chamber 34. Air is forced through the casing to a duct 40 leading to the burners 25. A byepass may be provided to conduct a controlled quantity of cold air directly to the conduct 40, and part of the air may be led off for forcing the pulverized fuel into the burners.
Patent GB-477504-A (GB)
Title: Grass-cutting machine, especially for cutting grass-bands and small grass-plots
IPC: A01D69/00
Filed: 1937-04-02
Abstract: 477,504. Lawn-mowers. EBERHARDT, D. F. April 2, 1937, No. 9396. Convention date, April 4, 1936. [Class 6 (ii)] A machine for cutting small grass plots &c. comprises a frame 1 provided with a central longitudinal handle 13 and carrying a rotary cutter 2 driven by hand and provided with one or more blades 3 cooperating with a fixed cutter, two supporting rollers 11, 12 being mounted behind the cutter 2. The blades 3 have inclined cutting edges, and the fixed cutter is somewhat resilient and is carried by a cross-bar below the cutter 2. The operator drives the cutter 2 by means of a crank 10 and gearing 7, 8, 9. The rear roller 12 is adjustable vertically to regulate the cut. A cutter guard is fixed to a cross-beam 15.
Patent GB-897119-A (GB)
Title: A lawn edge cutting machine
IPC: A01G3/06
Filed: 1961-03-15
Abstract: 897,119. Edge-trimmers. CRUISE, R. L. March 15, 1961, No. 9400/61. Class 6(2). An edge cutting machine comprises a base plate 8 hinged to a wheeled frame 1 and height adjustable by means of a crank 10 operated by a lever and fixed in position by a spring- loaded pawl co-acting with a toothed quadrant fixed to the frame, a motor 18 being mounted on the plate 8 and driving cutters 21 pivotally attached to a disc 20 carried by a driving shaft 19. For positioning the machine with respect to a fixed object such as a kerb a wheel 37 for engagement with the kerb is provided, the wheel being adjustable vertically and horizontally. An additional ground wheel may be provided for supporting the machine when it is used in such a position that it overhangs the kerb or the like.
Patent GB-562089-A (GB)
Title: Manufacture of esterification products of ethers of aminotriazine-formaldehyde condensation products
IPC: C08G12/44
Filed: 1942-07-07
Abstract: Ethers of aminotriazine condensation products, e.g. methyl or butyl ether of melamineformaldehyde resins, are esterified with a saturated or unsaturated fatty acid or an acid halide or anhydride thereof. The ether-resins may be prepared as described in Specifications 466,096, 486,519 and 486,577, or in French Specification 833,281. Suitable acids are stearic, palmitic, oleic, linoleic, ricinoleic, naphthenic, succinic and sebacic acids or the fatty acids of wood oil, poppy-seed oil or cotton-seed oil.  The reaction may be carried out in the presence of butanol, dipentene, benzene and acid-binding agents such as caustic alkali or pyridine.  The products vary from oils, through viscous liquids to semi-solids or solids and are soluble in benzene, toluene, solvent naphtha, oil of terpentine, butyl acetate, butanol benzene and linseed oil.  They may be used in making stoving or air-drying lacquers, as waxes, softeners or binding agents and as surface-active or water-repellant materials. They are air-drying and may be hardened by heating.  Driers and hardening accelerators may be used.  In an example, a resin prepared as described in Example 1 of Specification 466,096 is dehydrated by diluting with butanol and distilling at 100 DEG  C. in vacuo. Stearic acid is added and the mixture heated at 80-130 DEG  C. under a pressure of 10-20 m.m. of mercury.  Unconverted stearic acid is removed by extraction with methyl alcohol at 40 DEG  C.
Patent GB-572758-A (GB)
Title: Improvements in or relating to parachute equipment
IPC: B64D17/52
Filed: 1940-05-30
Abstract: 572,758. Parachutes. AVIOREX DREYFUS FRERES. May 30,1940, No. 9489. Convention date, June 9, 1939. [Class 4] The canopy of a parachute is housed within a bag 1, part or all of the rigging being arranged outside thereof. The latter part is arranged to be of easy access and together with the bag is preferably worn on the back. In the form shown the bag 1 is worn across the waist and the rigging is accommodated in the space between the latter and the shoulders within an auxiliary bag 4. The bag 1 is fixed to the belt 2 and is closed by easily releasable flaps. The rigging is arranged in zig-zag folds in the auxiliary bag by temporary fasteners 5, its ends passing through an aperture 7 into the main bag where the rigging is connected to the belt at 6. The sides of the fabric of the bag 4 are preferably detachably connected by zip-fasteners 10. The cable 12 controlling the quick release of the flaps from a manually-operated device 11, is fixed to the belt, preferably in the middle of two straps 13 forming the latter.
Patent GB-497990-A (GB)
Title: A combined milk bottle disc lifter and milk bottle cover
IPC: B67B7/12
Filed: 1938-03-29
Abstract: 497,990. Bottle-openers. WIGGINS, W. March 29, 1938, No. 9527. [Class 125 (ii)] A device for removing cardboard sealing discs from milk bottles consists of a cover a soldered to a handle b and a cutter c, the latter of which is adapted to pierce the discs and to provide a shoulder to assist in the extraction. Reference has been directed by the Comptroller to Specification 297,214, [Class 125 (ii)].
Patent GB-1520173-A (GB)
Title: Method of controlling the flight path of a lowflying aircraft
IPC: G05D1/06
Filed: 1976-03-10
Abstract: 1520173 Automatic control DORNIER GmbH 10 March 1976 [14 March 1975]  09538/76 Heading G3N The flight path of a low-flying aircraft is controlled in proximity with the surface of the land or water by computing, by apparatus forming part of an automatic control system a height limit which is a function of the transverse acceleration, the rate of descent and the maximum permissible acceleration. As shown, a computer 12 receives the measured height H, speed V, trajectory angle γ and transverse acceleration b Q  from which is calculated the difference between H and a H limit. If the result is greater than, or equal to zero, a controller 8 is not activated but when the result is less than zero then a maximum transverse acceleration -bq max is set up to determine the operation of a linear or non-linear flight control 14. The mathematical deviation of control criteria are set out in the description.
Patent GB-548474-A (GB)
Title: Improvements in and relating to collapsible tubes
IPC: B65D35/02
Filed: 1941-07-28
Abstract: 548,474. Collapsable tubes. WINTERNITZ, L. July, 28, 1941, No. 9576. [Class 66] Collapsable tubes are formed from paper or other non-metallic sheet material scored or folded to afford face portions 1, 2, Fig. 3, and side gussets 4a, 7a, the delivery end having means to engage and retain a metal or other nozzle adapted to receive a screw cap. In the construction shown the nozzle retaining means is adapted to afford an end of tapered form, see Fig. 4, and comprises apertured overlapping flaps 10a, 14a, the wing flaps 19 being attached by adhesive to the under surfaces of the lowermost scored flaps 14α. Fig. 5 shows a form of blank in which closure flaps are avoided; in this form the gusset portions 3, 7 are provided with laps 22 for attachment to the faces portions 1, 2. Fig. 7 shows a tube of conical shape formed by winding a sector-shaped blank, the gussets being afforded by scorings 29. In this form the skirt 31 of the nozzle is engaged between the plies of the material.
Patent GB-671385-A (GB)
Title: Improvements in or relating to suction blank feeds
IPC: B65H3/34
Filed: 1949-04-08
Abstract: 671,385. Feeding sheets. MASON, J. A., and MOLINS MACHINE CO., Ltd. April 6, 1950 [April 8, 1949], No. 9627/49. Class 100 (i). An apparatus for feeding blanks comprises a suction device 1 rotatable beneath a pile of blanks 2 supported in a magazine 3 and which is adapted to engage the lowest blank of the pile and remove it by a movement substantially transverse to the outlet face of the pile, separating springs 7 forming stops which engage the outlet face of the pile at the outlet of the magazine, the springs having inturned ends which are located beneath the lowest blank, means 9 being provided to deflect the springs until the ends are clear of the blank to permit the blank to be removed from the pile and to permit the ends of the springs to spring back beneath the pile immediately the blank has passed beneath the springs 7. Double feed is thus prevented. The blanks 2 are supported in the magazine 3 by members 4 which engage each end and similar members 5 which engage the rear edge. The suction device 1 is recessed to clear the support 5. The outlet face of the pile of blanks in addition to being engaged by the springs 7 is also engaged by springs 6. Both sets of springs being adjustable and both engaging the piles of blanks through recesses in a plate 11 of the magazine. The springs 6 are flat and protrude slightly below the lowest blank to keep the blanks in correct superposed alignment. Both of the sets of springs are moved away from the pile by lugs 9 on the suction device 1 during its rotation so enabling the bottom sheet to be removed. The springs 7 are moved first because of their inturned end. Specification 377,807, [Group XV], is referred to.
Patent GB-569055-A (GB)
Title: Metallised paper and products made therefrom
IPC: D21H19/02
Filed: 1944-06-15
Abstract: 569,055. Compound sheet materials. WATSON, J. H., and ANDERSON, H. E. June 15, 1944, No. 9648/43. [Class 140] [Also in Group II] Stabilised metallised paper comprise a basis of paper loaded with from two to eight per cent of its weight of a thermosetting artificial resin and a surface coating of metal which may be applied by spraying or by attachment thereto of metal foil. The paper, of single or multiple ply, is loaded with resin, e.g. urea-formaldehyde resin, as by impregnation of the wet paper web in the paper-making operation at a point beyond the second wet press with a solution of resin-forming materials such as the components of such a resin, or a phenol-formaldehyde resin or a pre-condensate and by condensation or polymerization of the resin after the paper drying stage. Alternatively, after impregnating the dry web or sheets with the solution, the paper is re-dried and resin condensed or polymerized at an elevated temperature. The metal coating may be applied to one or both faces of the paper. Specifications 145,123 and 327,728, [both inClass 140], are referred to.
Patent GB-1475057-A (GB)
Title: Closure cap
IPC: B65D41/04
Filed: 1975-03-07
Abstract: 1475057 Caps for containers ANCHOR HOCKING CORP 7 March 1975 [8 March 1974] 9670/75 Heading B8T A metal closure cap of the type having a metal shell 2 and a top 3, depending skirt 4 formed with an inwardly rolled bead on the lower edge of the skirt and inwardly directed lugs 9, and having a cut board liner 12, is characterized in that a pluraltiy of spaced indents 14 are formed in the cap skirt to retain the liner 12 within the cap shell on removing the cap from a container. The indents may be hemispherically shaped and substantially rectangularly shaped with the longest sides circumferentially or axially aligned. The indents may be in spaced groups around the skirt and for the axially aligned rectangular indents, the indents in the group can be of differing lengths. The top 3 can be depressed to form a stacking panel. The cut board liner 12 may have a safety seal liner 13 adhered such that it remains attached to the rim of the container as the cap is removed.
Patent GB-1145089-A (GB)
Title: Apparatus for scanning a radiation generator through a predetermined area
IPC: G01T1/166
Filed: 1966-03-08
Abstract: 1,145,089. Radio-active material concentration monitoring. H. LEITER. 8 March, 1966 [6 April, 1965], No. 9684/68. Divided out of 1,145,088. Heading H4F. In an apparatus for scanning a variably energizable radiation generator such as a light source across a predetermined area, the generator is varied in intensity in accordance with a stored programme, and the scanning is regulated by stored control signals read out only during portions of the scanned pattern. The apparatus is used for making a photograph of the variations in isotope concentration in a patient from signals produced by a scanning transducer recorded in the store which may be a magnetic tape, voice-frequency control signals being inserted at appropriate times by line and frame limit switches on the transducer scanner. A motor 124 on the scanning apparatus, Fig. 5, drives a chain 116 through gears 122, 123, and reciprocates light source 103 across the photographic paper, the block 102 carrying the source being clamped alternately to the top and bottom runs as the supporting carriage is notched forward by cammed rods 108, 109 engaging teeth of the racks 91, 92. An alternative cathoderay tube display arrangement is described in which the data signal varies the intensity of the light spot, left- and right-hand sweeps are controlled bypositive and negative sources and a capacitor, and vertical deflection is controlled by a stepping switch stepping a potentiometer wiper to step the vertical plate potentials.
Patent GB-884702-A (GB)
Title: Plutonium recovery processes
IPC: C01G56/00
Filed: 1946-03-28
Abstract: 884,702. Plutonium separation. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 28, 1946 [March 31, 1945], No. 9702/46. Class 39(4) Plutonium is recovered from material containing extraneous matter having gamma activity by a process comprising forming a plurality of bismuth phosphate carrier precipitates and incorporating mercury ions in a step of the process. In a preferred process, cerium ions are present when plutonium in the lower oxidation state is carried down with the bismuth phosphate precipitate, and mercury ions when impurities are carried down with the precipitate, leaving plutonium in the higher oxidation state in solution. In place of cerium ions, manganese ions or tartaric or diglycollic acid may be added during the precipitation of impurities. Examples describe the treatment of a nitric acid solution of neutron irradiated uranium to separate plutonium from fission products. U.S.A. Specification 2,785,951 is referred to.
Patent GB-205768-A (GB)
Title: Improvements in ratchet hauling appliances
IPC: B66D3/14
Filed: 1923-04-10
Abstract: 205,768. Appleby, E., Morgan, A. R., and Jenkins, T. April 10, 1923. Ratchet gearing.-In ratchet hauling-appliances of the type in which a pivoted lever carrying a tooth-engaging peg or projection co-operates with a ratchet wheel mounted in a casing and furnished with a spring detent, the fulcrum is fixed to the end of the lever and works in a slot in the frame or casing, also the tooth-engaging peg is adjustable to vary the purchase. In the illustrated form a ratchet wheel f, chain or rope drum e and drum h fitted with a hand-actuated band brake, are all mounted on a common shaft b which is journaled in suspended side plates a of a casing. The operating lever has a fulcrum q which slides to and fro in slots p in the side plates and a toothengaging pin v that can be positioned in any one of a series of holes t. The pin v is connected to a sliding sleeve s forming a handle extension and provided with a fixing screw which also passes through one of the holes t. A pivoted stop w can be turned to prevent the sliding movement of the pivot q when desired. A spring detent m, engaging the teeth of the wheel, can be held out of action by withdrawing it and giving it a quarter turn.
Patent GB-663161-A (GB)
Title: Improvements in the drying of material in sheet form
Inventor: JONES ERIC HARDING
IPC: F26B13/14
Filed: 1947-04-14
Abstract: 663,161. Drying webs &c. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. April 8, 1948 [April 14, 1947], No. 9834/47. Class 34(i) Apparatus for drying material in the form of a sheet c as it passes over rotatable cylinders a, b, comprises covers d, e conforming to the shape of the cylinder and with sealing means at the ends, and suction means f connected to the cover so that a stream of air is induced to enter unobstructed under the cover at the front and rear edges and flow over the sheet. The two cylinders a, b, of which b is smaller, operate in series and their covers are connected to a common exhaust fan f. The minimum velocity of the air stream is 30 feet per second and the covers may be corrugated or obstacles placed therein to cause turbulent air flow.
Patent GB-924338-A (GB)
Title: Improvements in window blind fittings
Inventor: WOOD RONALD ALFRED
IPC: E06B9/54
Filed: 1959-03-20
Abstract: 924,338. Window blinds. JOHN WOOD & SONS (BRISTOL) Ltd. May 5, 1960 [March 20, 1959], No. 9840/59. Class 20 (3). The sides and bottom of a window frame are provided with a channel-section metal strip 5 which is grooved at 7 to engage nylon balls 10 fixed at intervals to the vertical edges 9 of the window blind. An operating cord fastened to the bottom member of the blind passes under a pulley fitted in the centre of the bottom channel.
Patent GB-1429523-A (GB)
Title: Use of reheat gas in sulphur recovery systems
IPC: B01D53/52
Filed: 1973-02-28
Abstract: 1429523 Sulphur AMOCO PRODUCTION CO 28 Fob 1973 [2 Aug 1972] 9865/73 Heading C1A In a process for recovering sulphur from an H 2 S-containing gas stream, part of which is burnt in a combustion zone to obtain SO 2  for reaction with the remainder of the gas stream in a Claus reactor, the gaseous mixture of H 2 S, SO 2  and sulphur from the combustion zone is passed through two paths A and B in a heat exchange zone, the greater part flowing along path A and being withdrawn and condensed to separate sulphur from the H 2 S and SO 2  in the combustion gases, varying the flow in path A with the flow rate of gas to the combustion zone but maintaining the flow in path B substantially constant and heating the uncondensed stream containing H 2 S and SO 2  by addition of the hot stream in path B and passing the so-formed heated mixture to the catalytic reaction zone of the Claus reactor. As shown (Fig. 1) gas from a muffle furnace in which a gas stream containing H 2 S is partially oxidized is discharged via pipe 2 into a waste heat boiler 3. The greater part of the gas flows through tubes 4A into chamber 8, the lesser part flowing through tubes 4B into chamber 6. Gas may be withdrawn from chambers 6 and 8 into line 24 by opening valve 11 in line 10: preferably the valve 11 is closed so that gas is withdrawn directly from chamber 6 only. The temperature of the withdrawn gases in line 24 is controlled by valve 11. A gas stream also passes from chamber 8 via tubes 12 to a condenser 16 when sulphur is condensed out. Drain lines 26 and 28 are also provided to remove any sulphur which should condense out in chambers 6 and 8. The cool uncondensed gases from condenser 16 are mixed with hot gases withdrawn from the boiler via chamber 6 and line 24 and pass via line 25 to the Claus reactor.
Patent GB-1064681-A (GB)
Title: Process and apparatus for the recovery of liquid bitumen from underground deposits
IPC: E21B43/24
Filed: 1964-03-09
Abstract: 1,064,681. Mixing &c. DEUTSCHE ERDOLA.G. March 9, 1964 [March 21, 1963], No. 9874/64, Heading B1C. [Also in Division E1] Liquid bitumen is recovered from subterranean deposits thereof by injecting a heat transfer medium through a borehole into the deposit. The medium is formed by burning hydrocarbons with an oxygen carrier containing 80-95% O 2  to form a hot combustion-gas, and by mixing the gas with a portion of the deposit content (bitumen and water) which is raised in temperature by 50‹-125‹C. Before mixing with the portion paraffinic C 1 -C 7  hydrocarbons may be mixed with the combustion gas. Apparatus for forming the heat transfer medium is shown. Hydrocarbons entering through, 1 and the oxygen carrier entering through 2 are ignited in a burner 3 some of the heat serving to heat water in a jacket 4. The resultant combustion gases are mixed with light hydrocarbons from 7 and the enriched combustion gases are pumped past a vaned rotor 11 and through a perforated disc 10 to mix with bitumen from 15 before passing through screen 14 to be injected into the borehole.
Patent GB-1378055-A (GB)
Title: Paper forming apparatus
IPC: D21F9/00
Filed: 1972-03-02
Abstract: 1378055 Paper-making apparatus BELOIT CORP 2 March 1972 [25 March 1971] 9891/72 Heading D2A  Apparatus for forming a fibrous web comprises twin wires F1, F2 forming a nip N-1 for receiving stock from a headbox and extending over stationary guides 14, 16 and round a suction roll 20, the guides 14, 16 defining a curved path and the wire Fl being free from restraining means opposite the guides 14, 16 and the roll 20. The stock may be fed upwardly as shown or the apparatus may be inverted. The centre axis a of the headbox is substantially tangential to breast rolls 12, 13 and the stock contacts the wire F2 first, and the rolls 12, 13 may be adjustable to vary the nip N-1 and may be open or solid. The wires F1, F2 extend over tensioning guide rolls 19, 19' and are synchronously driven by drives M1, M2 at the speed of the jet of stock leaving the headbox, and they are made of bronze, steel, copper, plastics or fabric strands. The guide 14 includes spaced transversely extending members having wire-contacting edges 15a of wear-resistant material such as ceramics or plastics, and the guide is subject to vacuum. The guide 16. is a vacuum box and has a wire-contacting surface which may be flat but is preferably curved with a radius of curvature less than that of the guide 14. A doctor 17 engages the wire F1 and directs removed water to a saveall Sa. More than one doctor 17 and further guides 16 may be provided. Members 18 prevent fluttering of the wires Fl, F2 and pressurized air is supplied at 18a to facilitate adherance of the web to the wire F2. The vacuum in the guide 16 is greater than that in the guide 14 and less than that in the roll 20 which has compartments 19, 21, 22 subject to respectively increasing amounts of vacuum. A doctor 17a engages the wire F2 and the breast and guide rolls for the wires F1, F2 also have doctors. The web is transferred to a pick-up felt PF and travels with the felt through a roll press nip WN-1, and a felt only roll-press nip FN-1 is also provided. The press rolls 25, 26, 27 may be plain, blind-drilled, suction or grooved rolls. In an alternative embodiment, Fig. 2 (not shown), the guide 14 has a smooth water-impermeable surface, a curved leading edge and an abruptly diverging trailing edge.