baber/WOPTO huggingface dataset:
Patent GB-1291706-A (GB)
Title: Improvements in nuclear reactors
Inventor: BIRTS LESLIE
IPC: G21C15/18
Filed: 1969-01-16
Abstract: 1291706 Cooling reactors UNITED KING- DOM ATOMIC ENERGY AUTHORITY 8 Jan 1970 [16 Jan 1969] 2708/69 Heading G6C In an integral pressurized-water cooled reactor, when normal core cooling facilities are lost, heat is removed from the core by the use of an emergency coolant supply. Water from the emergency supply is pumped into the pressure vessel and through the heat exchangers. In the event of a leak in the cooling system, water is fed from the shield tanks 19, 20 into the heat exchangers, 14, by the low powered pumps, 36, to cool the reactor primary coolant, the steam produced being condensed in the shield tanks. Pump 29 which moves water from the shield tanks into the pressure vessel, 11 to maintain the core 13 covered by coolant, is started when the differential pressure meter, 35, indicates that the reactor primary coolant has fallen to a predetermined level. Pumps 26 are automatically controlled simultaneously by the monitor 33, which detects pressure rises in vessel 12 and by the N 16  monitors, 31, which detect the leakage of primary coolant into the secondary coolant. Reactor control, 15, is also adjusted by the signals from 31 and 33.
Patent GB-1531513-A (GB)
Title: Arrangement for transferring a ribbon from a feed spool to a take-up spool
IPC: B41J33/34
Filed: 1976-01-23
Abstract: 1531513 Ink ribbon feed mechanisms ING C OLIVETTI & C SpA 23 Jan 1976 [10 Feb 1975] 2708/76 Heading B6F [Also in Division H2] An ink ribbon fed between a pair of spools has a motor 22, 23 associated with each spool. The take-up spool motor is connected to a constant current generator and the supply spool motor is connected to a constant voltage generator to drive it in the ribbon unwinding direction. Fig. 2 shows the current generators 30, 31, voltage generator 41 and motor 22 acting as the supply spool motor. Ribbon reversal is effected by changing the positions of all of the switches 32a, 32b, 33a, 33b. In Fig. 3 the voltage generator is zener diode 50 and the current generators are transistors 45, 52 which are commanded by transistors 49, 56 respectively.
Patent GB-1532651-A (GB)
Title: Methods of and apparatus for arresting propagating fractures in pipelines
IPC: F16L57/02
Filed: 1975-01-22
Abstract: 1532651 Arresting fractures in pipes BRITISH GAS CORP 7 Jan 1976 [22 Jan 1975] 2722/75 Heading F2P A pipeline fracture-arresting means comprises a cylindrical sleeve 1 having a greater diameter than the pipeline 2 and arranged concentrically therewith to define an annular space therebetween which is bridged by annular support means provided by a filling 6 of a material having a compressive strength sufficient to arrest the propagation of a fracture in the pipeline (e.g. grout) held in place by radial closure plates 3, 4 which may be spaced from the pipeline 2 to avoid damage to the surface of the pipeline. If a split or fracture appears in the pipeline 2 it can propagate along the pipeline only until it reaches the arrester means. The means are provided at predetermined intervals along the length of the pipeline to limit the length of a fracture.
Patent GB-951893-A (GB)
Title: Improvements relating to web punching or needling machines
IPC: D04H18/00
Filed: 1962-01-24
Abstract: 951,893. Felt-needling machines. W. BYWATER Ltd, and BRENDAN BYRNE. Jan. 24,1963 [Jan. 24,1962], No.2738/62. Heading D1R. A needle punching machine in which the felt F is drawn between a needle bed 4 and reciprocating needles 12 in a path at right angles to the direction of the reciprocation of the needles, includes means for reciprocating the felt F in the needling area in directions transverse to the direction of travel of the felt through the machine. The needle bed 4 is mounted on jacks 3 and carries feed and draw rollers 5, 6, respectively, which are intermittently rotatable. The needle board 11 is mounted on a needle arm 10 and is reciprocated vertically by an eccentric mechanism 14 on a shaft 35. Each roller 5, 6, is mounted on a shaft 17, Fig. 2, by bearings 18 in a housing 19 having two arms 20 secured to rods 21 which slide in bearings 23 secured to the bed 4. Each shaft 17 is connected to a co-axial drive shaft 24 by a sleeve 25 screwed on to the shaft 17 and having a pin 28 extending through a diametrical slot 26 in the shaft 24 so that the shaft 17 can be rotated by the shaft 24 and can also move axially over a short distance. Each shaft 24 is intermittently rotated through a ratchet 30 having a pawl arm 31,the two arms 31 being connected by a rod 32 and one arm 31 having an auxiliary arm 31X connected by a rod 33 to a crank device 34 driven by the shaft 35. A ratchet 38 and a pawl 39 prevent reverse rotation of the shaft 24 and a spring-pressed plate-type friction brake 40 is also provided. Each shaft 17 is connected by bearings 41, Figs.2 and 4, to a yoke 42 secured to a housing 43, Figs.2 and 3, which slides on a shaft 44 on which two cam rings 45 are keyed. Runners 47 on pins 48 secured to the housing 43 engage grooves 46 so that rotation of the shaft 44 causes the housing 43 and thus rollers 5, 6 to reciprocate. The shaft 44 is intermittently rotated through a ratchet 50 engaged by a curved pawl 51 driven by a rod 52 from the shaft 52 via a crank device 53. A ratchet 55 and a pawl 54 prevent reverse rotation of the shaft 44. The reciprocation of the rollers 5,6 takes place simultaneously with the feed movement of the felt F between consecutive strokes of the needle board 11. Alternatively, the reciprocating movement may be continuous. In a modification (not shown), instead of being fed by a roller, the felt is fed by a travelling sheet or sheets the supports of which are reciprocated transversely.
Patent GB-699032-A (GB)
Title: Heat exchangers, for example, radiators for internal-combustion engines
Inventor: JACKSON LEONARD HATTON
IPC: F28F9/02
Filed: 1951-02-05
Abstract: 699,032. Making heat-exchangers. COVENTRY RADIATOR & PRESSWORK CO., Ltd. Oct. 18, 1951 [Feb. 5, 1951], No. 2758/41. Classes 83 (ii) and 83 (iv). [Also in Group XIII. Seamed joints. - Top and bottom header tanks for a heat-exchanger, such as an internal combustion engine radiator, are provided with seamed joints for the tube plates, the upper filling- tube pipe and the lower drain pipe. Fig. 4 shows a tube plate 11 deformed around the shaped lower edge of the top header 12 to enclose deformable jointing material 17, such as rubber, asbestos, paper or suitable plastic or ductile material. Fig. 3 shows the edge 25 of a filler tube 22 deformed round the edge of an opening 23 in the top header tank 12 to enclose a sealing ring 24 of deformable material. Fig. 10 shows a drain pipe 30 connected to the bottom header tank by jointing material 33 deformed by spinning or bending over the edge 36 of the pipe. Specifications 228,111, [Class 64 (iii)], and 604,506 are referred to.
Patent GB-547504-A (GB)
Title: Improvements in or relating to autographic registers
IPC: B41L5/06
Filed: 1941-02-28
Abstract: 547,504. Autographic registers. SMITH & SON, Ltd., W. H., and EVANS, A. Feb. 28, 1941, No. 2777. [Class 106 (i)] In registers provided with pin wheels for engaging and feeding a strip or superposed strips of record material and with releasable stop mechanism for controlling the feeding means, the stop mechanism comprises a bevel or crown gear driven by a smaller gear on the pin wheel shaft, an offset pin or abutment on the bevel gear, and a lever pivotally supported on the register and so arranged that one arm is normally in the path of the abutment to limit the rotation of the feeding means but is settable manually to a position clear of the path of the abutment. The casing has a lid in two parts 11, 12, the first constituting the writing tablet, the second a means for access to guide bar 54. Pin wheels 15 project through slots 20 when portion 11 is lowered, and are carried by shaft 16 which has a handwheel 17 outside the casing. A bevel gear 28 on shaft 16 meshes with a bevel gear 29 having twice as many teeth and carrying a pin 31, Fig. 4, on its under-side abutting against one end 32 of a bell-crank lever, the other end 34 of which projects from the casing. The strips of paper are folded zig-zag in the casing and are drawn out over guide bar 54, over the writing tablet 11 and under a hinged presser member 21, hinged at 13 to the body of the casing. Carbon papers are interleaved with the strips and secured over flanges 26 on the tablet 11, a channelled blade 27 being adapted in the closed position to grip the carbon papers tightly. The paper strips have marginal perforations 19 for co-operation with the pin wheels. When the bell-crank lever 32, 34 is manually operated, the locking mechanism is released and the handwheel 17 can be rotated through two revolutions to advance the paper strips before pin 31 abuts again against the end 32 of the bell-crank lever. A one-way brake 36 (Fig. 3, not shown) prevents reverse rotation of the pin wheel shaft and comprises a helical spring surrounding and frictionally engaging the shaft, the spring being anchored to the casing at its leading end considered in the direction of rotation of the shaft.
Patent GB-893380-A (GB)
Title: Improvements in engine mounting arrangement
IPC: F02K3/12
Filed: 1960-01-26
Abstract: 893,380. Aircraft engine mountings. GENERAL ELECTRIC CO. Jan. 26, 1960 [Jan. 28, 1959], No. 2787/60. Class 4. [Also in Group XXVI] A multiple engine cluster comprises five small gas turbines 1 supported in a mounting structure 40 which discharge into an afterburner 50. The engine is mounted on the aircraft by the pads 60, 70, 80. The mounting pads 60, 70 are attached to the afterburner casing. The mounting pad 60 is fixed to the aircraft structure by a threaded pin 62 and nut 63, The mounting pad 70 carries a pin 71 which is axially movable in the slot 72 of the aircraft structure to compensate for radial expansion. The mounting pad 80 comprises lugs 84, 85 which carry swinging links 86, 87 supporting a bar 88. A plate 81, attached to the support member 10 slidably engages the bar 88 to allow for axial expansion of the mounting structure.
Patent GB-789198-A (GB)
Title: Improvements in or relating to a method of and installation for sorting solid products
IPC: B03B5/62
Filed: 1956-01-27
Abstract: 789,198. Sorting granular materials. ETABLISSEMENTS NEYRPIC. Jan. 27, 1956 [Feb. 3, 1955; Jan. 11, 1956], No. 2801/56. Class 82(2) In a method of sorting solid materials by density or by size, the materials are intermittently introduced into a closed conduit through which a liquid under pressure passes at a speed between the limiting speeds of deposit of the constituents to be sorted, the constituents being deposited in the conduit in the form of dunes, and then removed. For the sorting of more than two constituents the flow speed is reduced in steps by successive increases in the diameter of the conduit. For sorting material containing three constituents, the material is delivered successively by a rotary distributer 11 into compartments 12 of a container 13 supplying a mixture of water and the material to a series of sorting conduits 15. The mixture reaches the first part 20 of the conduits the diameter of which at this point is so chosen that the speed of flow is less than the limiting speed of deposit of the heaviest constituent which is therefore deposited in the form of dunes which progress slowly forwards to an extraction device 21 where it is collected. The other two constituents remain in suspension and proceed via a divergent portion 26 to a part 30 wherein the diameter is so increased that the flow speed drops below the limiting speed of deposit of the intermediate constituent. This latter is deposited in the form of dunes and collected by an extraction device 31, whilst the lightest constituent is carried to the extremity 19 of the conduits. The extraction devices 21, 31 may be replaced by slots or trap doors in the bottom of the conduits, such doors being pivoted about horizontal axes with a slight tendency to close which is overcome by the excess load of a dune.
Patent GB-422250-A (GB)
Title: Improvements in artificial flies
IPC: A01K85/08
Filed: 1934-01-27
Abstract: 422,250. Fishing. WANLESS, A., Fordholm, Dunblane, Perthshire. Jan. 27, 1934, No. 2850. [Class 48] An artificial fly, is built up upon a core 1 which is threaded through the eye 4 of a hook, und provided with an eye 2 for attachment to the gut. The hook is maintained at any desired angle to the core by bending the eye 4.
Patent GB-385128-A (GB)
Title: Improved sieve for culinary and similar purposes
IPC: A47J43/22
Filed: 1932-02-01
Abstract: 385,128. Sieves. GLEN, T., 152, Brook Street, Coogee, New South Wales, Australia. Feb. 1, 1932, No. 2941. Convention date, April 23, 1931. [Class 117.] A sieve for culinary purposes comprises a receptacle 1 having a false bottom 2 of sieving material oscillated in a groove 4 by a projecting handle 5. The sieve 2 is clamped in a ring 3 and the handle 5 is connected thereto by a sliding or hinged connection so that it can be housed inside the receptacle when not in use. Handles 9 for the receptacle are in the form of loops pivoted in eyes 10.
Patent GB-547071-A (GB)
Title: Improvements in oil filters
IPC: B01D39/18
Filed: 1941-03-05
Abstract: 547,071. Filtering - media. A C - SPHINX SPARKING PLUG CO., Ltd., and BROWNE, D. B. March 5, 1941, No. 2966. [Class 46] [Also in Group VIII] A filter element, for an oil filter unit, consists of a mixture of fully beaten wood pulp and raw wood pulp, preferably in the proportion of about 7 to 3, bonded together into a porous mass. A preferred mixture is 70 per cent. Kraft-paper, or Kraft waste, reground and 30 per cent. Kraft pulp reground. A mixture of ground-up newsprint and long fibre pulp may be used. Preferably, a resin binder is employed.
Patent GB-1331583-A (GB)
Title: Process for cooling hot bulk materials
IPC: F27D15/02
Filed: 1972-01-21
Abstract: 1331583 Cooling bulk material METALLGESELLSCHAFT AG 21 Jan 1972 [27 Jan 1971] 3105/72 Heading F4B Apparatus for cooling bulk material, e.g. hot sinter, comprises an annular open plenum chamber 4, below a series of moving gaspermeable troughs 2 charged at 1 and discharged at 3, a number of blowers 6 in the cooler part of the apparatus and a series of partitions 5 dividing the chamber 4 and formed with throttling openings 7. The partitions 5 divide the chamber 4 into compartments having a length ratio starting at the hot end of 1 : 2 : 7 and the openings 7 may be controlled by flap valves. Preferably three blowers 6 are fitted and the reduction in the rate at which the air passes through unit area of material towards said hot end reduces the ejection of dust. The system may be applied to a straight cooler (Fig. 4).
Patent GB-1421551-A (GB)
Title: Burner for gaseous fuel
IPC: F23D14/00
Filed: 1972-01-22
Abstract: 1421551 Gas burners BRITISH GAS CORP 19 Jan 1973 [22 Jan 1972] 3142/72 Heading F4T Burner apparatus for a predetermined gas fuel has a governor (not shown) for maintaining the pressure to a fuel gas inlet 8 in substantially constant relation to the pressure surrounding the burner head 9, and a valve (not shown) for regulating the air flow to an air inlet 1 which opens to a secondary air passage 13 leading. directly to the burner head, and to a primary air passage 4 leading through the throat 6 of an injector to a mixing tube 7 and thence to the burner head, the fuel inlet 8 opening to the suction inlet of the injector which, on air supply to inlet 1, entrains the fuel gas in excess of the stoichiometric fuel/primary air ratio, the resulting mixture passing to the burner head to mix with the secondary air and burn thereat, the thermal output of the apparatus being controlled by the air valve. Orifices 3, 4, 6 may be adjustable or interchangeable to vary the primary/secondary air and primary air/fuel ratios. The burner head may be an open-ended tube or may be formed by orifices 9 adjacent the closed downstream end of tube 7. A flameretention device may be provided comprising a continuous tube 12, or a castellated flange, on an annular baffle 10. Injector nozzle 5 may be convergent or cylindrical and outer tube 13 may be convergent, divergent or cylindrical.
Patent GB-1115746-A (GB)
Title: Tape transporting mechanism
IPC: G11B15/44
Filed: 1967-01-23
Abstract: 1,115,746. Driving magnetic tapes. BELL & HOWELL CO. 23 Jan., 1967 [15 Feb., 1966], No. 3272/67. Heading G5R. A pinch roller 15 rotatably mounted at one end of a member 19 may be moved, prior to tape reversal, to a symmetrically-opposite position in relation to a capstan 14 by moving the member 19, by a knob 27, to the other leg 24 of a slot 23, against the action of a spring 29. The head 11 is at the same time transferred from the right-hand to the left-hand position. The purpose of the roller adjustment is to ensure that the position of tape engagement with the capstan and pinch roller is downstream of the position of first tangency of the tape with the assembly, as shown in Fig. 3 (corresponding to the Fig. 2 position). The member 19 is guided by a slot 20 in it which surrounds the capstan bearing. A notch 26a permits the pinch roller to be held clear of the tape 12 for tape threading.
Patent GB-1415094-A (GB)
Title: Pneumatic tyres
IPC: B60C19/00
Filed: 1973-01-22
Abstract: 1415094 Pneumatic tyre treads PNEUMATIQUES, CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER COLOMBES 22 Jan 1973 [21 Jan 1972] 3273/73 Heading B7C A pneumatic tyre, e.g. for aircraft, has a tread comprising circumferential ribs 6 of substantially trapezium section separated by circumferential grooves 7 with radially outwardly divergent sides, the tops 8 of the ribs 6 being 3-6 cm. wide and the sides of the grooves 7 making an angle B of 30 to 45 degrees with the normal to the tread surface. The base of one or more of the grooves 7 may have a channel 14 formed therein which has a radial depth d 0À1-0À3 times the total depth E of the grooves and has, at least in its radially outer part, parallel (Fig. 6, not shown) or radially inwardly divergent sides Fig. 7. The tyre may have a carcass 3 with a reinforcement 4 or reinforcements on its crown, and there may be anti-cut 12 and reinforcing 13 layers in the tread band beneath the grooves 7.
Patent GB-472795-A (GB)
Title: Improvements in and relating to the manufacture of machine parts or the like exposedto sliding friction
IPC: F16C33/12
Filed: 1937-02-04
Abstract: One or both of the members of a pair of members participating in sliding movements, e.g. a crosshead and guide, link block and link, rod and guide sleeve, slide valve and valve face, or piston and cylinder, or the parts of such member or members exposed to sliding friction, is or are made of the alloy described in the parent Specification.  Reference has been directed by the Comptroller to Specification 450,424.
Patent GB-180720-A (GB)
Title: Improvements in let-off mechanism for looms
IPC: D03D49/06
Filed: 1921-01-27
Abstract: 180,720. Booth, J. W., and Corlass, T. C. Jan. 27, 1921. Letting-off warps.-In loom let-off mechanism, the weighted levers 4, Figs. 2 and 4, which is connected to the brake-applying device 2, is pivoted on a pulley 5 carried by a spindle &c. 5<a> engaged by links 16 connected by flexible connections 14, a cross-head 13, and a flexible connection 11 to a lever on a shaft carrying another lever pressing against the warp on the beam, so that, as the diameter of this warp varies, the pulley 5 is moved to vary the position of the fulcrum of the lever 4 thus varying the amount of brake. The connection 11 passes over and is fixed to a cam-like compensating-device 12 pivoted at w. The spindle 5<a> is provided with pulleys 17, 17a, Fig. 6, running on the upper surface of a bracket 6, and it is acted upon by a weighted connection 14b. The lower surface of the lever 4 and the upper surface of the bracket 6 are inclined. The lever may be raised by a hand-operated device 19, 19<a>, and it may be connected to the friction device 2 by screw-and-nut devices 18. The brake or friction device may comprise a chain, as shown, or ropes, or shoeclamping devices. According to the Provisional Specification, the devices coupling the lever pressing against the warp to the moving fulcrum 5 may comprise spring-actuated mechanism, or weighted-lever mechanism, with or without flexible connections.
Patent GB-657438-A (GB)
Title: Improvements in or relating to processes of preparing zein solutions and the zein solutions resulting from said processes
IPC: D01F4/00
Filed: 1949-02-08
Abstract: Zein is dissolved in only sufficient alkali to form a stable, translucent solution of low viscosity which is stored, and further alkali thereafter added sufficient to form a bright, transparent solution.  Aqueous alkali may be added in increments to avoid an excess, about 1-2 per cent of sodium hydroxide, based upon dry zein, being required.  Usually the pH of the aqueous alkaline medium is not above 11.6.  Solution and storage is usually effected at below 60 DEG C., preferably below 30 DEG  C.  Agents such as formaldehyde and butyl alcohol may be added to assist retention of low viscosity.  The zein may be extracted from corn gluten with alcohols, e.g. 50-80 per cent, isopropyl alcohol at 40-70 DEG  C., de-oiled with hydrocarbons, neutralized where alkali has been used, and precipitated in water. The solutions of low viscosity may be filtered and de-aerated, and can be stored for weeks at room temperature.  When required for use for spinning, the additional alkali is added to increase the viscosity.  In examples, solutions of zein containing 15-17 per cent by weight are made using percentages of sodium hydroxide between 1 and 2, the change of viscosity with time being indicated.
Patent GB-1421165-A (GB)
Title: Gas treatment
IPC: B01D47/10
Filed: 1972-01-25
Abstract: 1421165 Gas scrubber LODGE-COTTRELL LTD 8 Jan 1973 [25 Jan 1972 25 Feb 1972 6 April 1972] 3431/72 8763/72 and 15891/72 Heading B1R A gas treatment apparatus comprises an upright tower 212 comprising a chamber 213 of high pressure construction, which separates off entrained moisture from entering gas, a chamber 218 of low pressure construction containing contact packing 308, means 314 for supplying cooling water for cooling by direct contact over the packing 308 gas from the high pressure chamber 213, a reservoir 316 for collecting the spent cooling water as well as any further moisture separated from the gas and conduit means 304 connecting the two chambers which means contains a gas pressure reducing means. A reservoir 232 may collect the moisture separated off in the high pressure chamber. The moisture separation means may be a conical baffle 241d located upstream of the conduit means 304. The gas supplied to the high pressure chamber 213 may be fuel gas or gas derived from a steelmaking process which gas has been scrubbed with water.
Patent GB-100219-A (GB)
Title: Improvements in Manicure Nail Polishers.
Inventor: PFRIEMER WILLIAM JOSEPH
IPC: A45D29/11
Filed: 1916-03-08
Abstract: 100,219. Pfriemer, W. J. March 8, 1916. Manicuring-appliances. - A manicure nailpolisher comprises a thick homogeneous felt body 12 secured to a back 10, 11 so that the sides and bottom of the felt body form polishing-surfaces, the body being compressed so that, when used, the old surfaces may be ground off without altering the uniformity of the body.
Patent GB-524648-A (GB)
Title: Improvements in fountain pens
IPC: B43K23/12
Filed: 1939-02-02
Abstract: 524,648. Pens; pen stands. WAGNER, E. R. Feb. 2, 1939, No. 3550. [Class 146 (iii)] Fountain pens have their nibs kept moist when not in use by a washer or sleeve 1 of cellular resilient absorbent material retained within the cap 5, Fig. 3, or the socket 11, Fig. 5, of a pen stand. The sleeve is compressed into its socket and has a central hole 2 to receive the point of the glass nib 4. The sleeve is moistened with ink, water or a glycerine solution, and is formed from sponge rubber either stamped from sheet with upper and lower cells closed or sealed or moulded or cut from a tube. To increase its hold, the cap or socket may be roughened or the sleeve 1 may be adhesively secured.