baber/WOPTO huggingface dataset:
Patent GB-1384701-A (GB)
Title: Nuclear reactors
IPC: G21C5/02
Filed: 1971-02-25
Abstract: 1384701 Moderator structures BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 28 Jan 1972 [25 Feb 1971] 5494/71 Heading G6C The horizontal movement of a rigid nuclear reactor core composed of vertically-disposed columns supported from below is restrained by a system including a plurality of essentially cylindrical rollers disposed over the periphery of the core and located against movement in the peripheral direction of the core, the rotational axis of each roller extending horizontally in the peripheral direction and being urged downwardly against a respective upwardly-facing surface associated with peripherally disposed ones of the columns, whereby each roller can accommodate movement of the upwardly-facing surface in the radial direction of the core and upwardly by rolling and by bodily upward movement of the roller, but by frictional contact with said surface resists movement of the surface in the peripheral direction of the core. The core comprises an assembly of parallel hexagonal graphite columns 10 and is enclosed within a concrete pressure vessel 12. The inner surface of the vessel 12 is provided with a steel liner 14 protected by a layer of thermal insulation 16. Adjacent columns 10 are in contact via projecting surfaces 18, 36 at their upper and lower ends respectively. To restrain horizontal movement of the top of the core as a whole, rollers 20 are disposed around the core periphery adjacent the level of the projecting surfaces 18, the rollers in cross-section having two redundant segments 21 removed (cf. Fig. 3). Each roller 20 rests on a bedplate 22 supported on the outermost of the columns 10 and is urged downwardly by a hinged frame 24 carrying weights 26. When, in operation of the reactor, thermal expansion of the core occurs rotation of the rollers enables horizontal expansion of the core at the level of the projecting surfaces 18 to be accommodated, whilst preventing movement of the core as a whole. Each roller 20 has a horizontal component of force transmitted to the columns 10 via the projecting surfaces 18 and serves to assist in holding the core together. The outermost columns 10 are divided into sections pivotally connected at points 30, 32, 34 and the downward component applied to these columns thus creates a horizontal force which is transferred to adjacent ones of the columns 10 via the projecting surfaces 36. The weights 26 are constructed to act as a neutron shield to reduce upward streaming of neutrons between the pressure vessel wall and the core periphery, the gap between the weights and the wall being covered by a shelf 38 supported by the pressure vessel.
Patent GB-215866-A (GB)
Title: Improved means for fixing rods, tubes or pins in plates
IPC: F16B9/00
Filed: 1923-02-26
Abstract: 215,866. Read, r. Feb. 26, 1923. Contacts.-A pin, tube, or the like is secured to a plate by forming a head or shoulder G on it to engage one face of the plate D and at a distance from this shoulder approximately equal to the thickness of the plate another V-shaped groove B is formed, the lip of this groove being swaged down over a washer to make the joint.
Patent GB-606164-A (GB)
Title: Improvements in stoves, fire-places and the like
IPC: F24B1/183
Filed: 1946-02-22
Abstract: 606,164. Stoves, fireplaces, &c. BAINES, R. Feb. 22, 1946, No. 5529. [Class 126] A domestic solid fuel stove is provided with two flues rising from the grate from levels one below the other and a heat reflector above the grate. Rising from a grate 6 are a main flue 18 and an auxiliary flue 19 which pass through a boiler 7 to a smoke-box 3 from which an opening 20 leads to the chimney: at the point of entry into the smoke-box the flues are provided with dampers 27, 28' actuated by cams 34, 35 on a shaft 36 controlled by a handwheel 37. Above the grate 6 is a reflector 14 which may be swung forward to close the front of the stove, a door 44 in the smoke-box 3 being opened to provide a direct path for the products of combustion, or the reflector may be completely removed, the grate then being used as an ordinary updraught grate. Below the grate is an ashpit door 47, pivoted at 49, which may be held in an open position by a lever-operated cam 50.
Patent GB-1038526-A (GB)
Title: Avian control and avicidal compositions
IPC: A01N33/18
Filed: 1964-02-10
Abstract: An avicidal composition comprises a major amount of a carrier and a minor amount of a compound of the formula <FORM:1038526/A5-A6/1> wherein R is a C1-C6 alkyl group, X is a halogen atom, Y is a NO2 radical, <FORM:1038526/A5-A6/2> or <FORM:1038526/A5-A6/3> group wherein R1 is a hydrogen atom or a C1-C6 alkyl group and R2 is a hydrogen atom or a C1-C6 alkyl group, or an acid-addition salt of said compounds.  The composition may be applied to an area in which the birds nest, roost or feed, or directly on to the birds themselves, or a bait. The composition may be in the form of sprays or dusts.
Patent GB-797924-A (GB)
Title: Improvements in or relating to sliver fault detecting mechanisms for drawing frames for textile fibres
IPC: D01H13/16
Filed: 1955-02-24
Abstract: 797,924. Stop mechanism for drawing frames. LOW & CO., Ltd., J. F., and HILL, T. Feb. 17, 1956 [Feb. 24, 1955], No. 5544/55. Class 120(2) Sliver fault detecting mechanism consists of a biased cranked lever pivoted intermediate its ends for swinging movement about a horizontal axis below the line of travel of the sliver, one arm of the lever being associated with detector means located between front drawing rollers and delivery rollers of a drawing frame and adapted normally to bear on the sliver from below and the other arm being so connected, by a system of levers, to switch means that on occurrence of a break in the sliver or a reduction in the tension therein the first mentioned arm will swing upwardly to effect operation of the switch means to stop operation of the frame. In the arrangement shown the detecting mechanism consists of a biased crank lever 5 having a detector palm 6 which engages the sliver 4. The lever 5 is so biased that on the occurrence of a break in the sliver 4, a cam follower 9 riveted to the other end of the lever 5 is brought into the field of operation of a cam 10 rotation of which forces the cam follower 9 into engagement with an abutment 11 on a second lever 12 which rocks the rock shaft 13 about its horizontal axis to swing a third lever 14 and associated contactor 15 downwardly to engage the micro switch 7 to stop operation of the frame.
Patent GB-466835-A (GB)
Title: Improvements in hydraulic ratchets
IPC: H02M1/00
Filed: 1936-02-25
Abstract: 466,835. Hydraulic transmission of power. BEIER, J. Feb. 25, 1936, No. 5616. Convention date, March 2, 1935. [Class 69 (ii)] A hydraulic ratchet comprises hydraulic transmission mechanism of the pump type, having a driving member capable of being oscillated and a one-way liquid flow controlling means. In the form shown in Fig. 1, a casing d enclosing a gear-wheel pump may be oscillated on the shaft e, and a valve k permits passage of liquid in one direction only. A byepass valve m, Fig. 3, and a spring-loaded piston p or an air chamber may be provided. As shown in Fig. 4, a central wheel a may be oscillated, and the drive taken off the casing. In another form, two spring-closed valves k<1>, k<11>, Fig. 7, are provided, both or one valve being held open by cams s, u, operated from a slidable disc v. Instead of gear-wheel pumps, other types of pumps, preferably positive displacement pumps, may be employed. Reference has been directed by the Comptroller to Specifications 292,505, 292,515, 337,564, [all in Class 69 (ii)], and 386,870.
Patent GB-262993-A (GB)
Title: Improvements in and relating to leather and like thong cutting apparatus
IPC: C14B5/04
Filed: 1926-03-01
Abstract: 262,993. Lee, E. C. March 1, 1926. Stationary-cutter machines.-In a machine for cutting a thong from a circular piece of leather, the disc X is guided by an adjustable edge-gauge G and presser-foot F. The thong is cut by a fixed inclined knife C with guarded upper edge, and is wound on a drum D<3>. The disc X is urged towards the knife by a pin W<2> carried by a slide L<3> movable along a fixed rod L by cord carrying a weight W. In a modification, the pin W<2> is carried on a pivoted arm. The thong may pass through a device K for indicating the length cut.
Patent GB-1254727-A (GB)
Title: Process for the manufacture of azo dyestuffs with heterocylic diazo components
IPC: C09B41/00
Filed: 1969-02-03
Abstract: 1,254,727. Preparation of azodyes. CIBAGEIGY Ltd. 3 Feb., 1969 [19 Feb., 1968; 29 Nov., 1968], No. 5661/69. Heading C4P. Azo dyes are prepared by reacting an N- nitroso compound of a primary heterocyclic amine with a coupling component in an organic acid or diluted mineral acid medium. Preferably the nitrosamine is first prepared by adding sodium nitrite to a solution of the amine in the acid (e.g. formic acid) and the coupling component, preferably in solution, added to the slurry of nitrosamine and the mixture heated to form the dye. In examples the preparation of mono- and dis-azo dyes is described.
Patent GB-230444-A (GB)
Title: Improvements in the firing of steam boilers by means of pulverized fuel
IPC: F23M5/08
Filed: 1925-03-02
Abstract: 230,444. Coutant, J. G. March 7, 1924, [Convention date]. Pulverulent-fuel furnaces; ashes, removing; steam, supplying.-In a boiler furnace fired with pulverulent fuel, the combustion chamber 1 is provided with a sloping floor cooled by water tubes 9 forming part of the water circulation system of the boiler 2 and exposed to the radiant heat of the furnace. Ashes may be allowed to accumulate on the tubes or may be removed by means of steam jets 11 through an ash-discharge gate. The tubes may be covered by plates 10. Fuel is supplied through burners 3 or 8 and air and steam are admitted to the combustion chamber through orifices 4, 4<a> and 6, 6<b> respectively.
Patent GB-284874-A (GB)
Title: Motor vehicle life saving guard
IPC: B60R21/34
Filed: 1927-03-01
Abstract: 284,874. Wray, G. S. March 1, 1927. Wheel-guards and safety appliances.-A lifeguard for motor-vehicles comprises a centralfront guard and two wheel-guards S, Fig. 3, each of which is slidingly supported on a pair of bolts E, Fig. 2, projecting laterally from a supporting frame A, the wheel-guards being adapted to be displaced outwardly by means of springs E<1> surrounding the bolts when the front guard is struck by an obstacle. Each wheel-guard is provided at its rear with recesses E fitted with guide-rollers L to receive the bolts E and at its inner edge with a C-shaped ring J adapted to engage the projecting nose Q of a releasing-pin O, Fig. 4, and thereby retain the guard in its inward or normal position. The releasing-pin 0 is of T- shape and slides within a casing N attached to the frame A, and is normally held with the nose Q projecting forwardly into the ring J against the action of a release-spring P<1> by a wire R maintained taut by connection to a strong but resilient part H of the front guard, Fig. 1. When an obstacle is encountered the spring part H is compressed, the wire R slackened, and the spring P<1> permitted to actuate the. pin 0 to release the wheel-guards. The front guard is preferably of V-shape and supported on the frame A by means of hooks F engaging slots B on the supporting frame.
Patent GB-254359-A (GB)
Title: Improvements in carburettors for multi-cylinder internal-combustion engines
IPC: F02M1/00
Filed: 1925-03-03
Abstract: 254,359. Cox, A. March 3, 1925. Spray carburettors. - Fuel or primary mixture supplied from a single main nozzle c, Fig. 5, is distributed equally to two separate mixing-chambers a, b provided with throttle valves a<1>, b<1> mounted on a common spindle e, the chambers a, b being connected to separate induction pipes each supplying a separate group of cylinders. The nozzle c may be provided with controlling means, may open into a primary air passage d<1>, and may be constructed as described in Specification 230,366. The fuel or primary mixture from the nozzle covers the inner tube d, Fig. 4, of a distributor comprising concentric tubes d, i mounted transversely across the mixing-chambers, and passes through perforations d' in the tube d, the annular space between the tubes, and perforations i<1>, i<2> in the tube i. The tubes d, i may be detachable and secured in position by a catch i<4>, and may be used as a fastening for choke tubes a<2>, b<2> which may be interchangeable. Mixture for slowrunning is supplied from a single nozzle, which may be controllable to a duct f<1>, Fig. 7, provided with branches f<2> opening into ports f<4> formed in the walls of the mixing-chambers; from the ports f<4> the mixture passes through passages f<7> and delivery ports f<8> formed in the throttle valves as described in Specification 254,144. The main and slow-running nozzles are housed in a body g which may be secured at one side of the mixing-chambers as shown, or be located between them. Specification 121,484 is referred to.
Patent GB-852034-A (GB)
Title: Improvements in or relating to clothes drier drums
Inventor: HUTT PERCY HAROLD
IPC: D06F58/04
Filed: 1958-02-24
Abstract: 852,034. Tumbler clothes driers. EASY WASHING MACHINE CO. Ltd. Feb. 24, 1958, No. 5959/58. Class 34(2) A perforate drum for horizontal mounting in a tumbler clothes drier comprises a rear wall having cone-shaped discs 2. 3, Figs. 1, 3, formed with abutting flats 9 which are welded together. A bored spacer block 7 for mounting the drum on a shaft 15 is located between the discs and attached thereto by nuts 8 which also secures a cover plate 25 to the disc 2. The disc apertures registering with the block bore 10 have internal Ranges 12 which provide part bearing surfaces on the shaft 15. A cylindrical screen 4 is welded to the rear wall and a front wall 1, the rigidity of the structure being improved by welding baffles 5, which are suitably flanged, internally of the drum to the screen and triangular flats 22, 21 formed in the front and rear walls, respectively. The screen edges are secured together by a ribbed strip 28, bar pieces 27 and associated nuts and bolts.
Patent GB-194297-A (GB)
Title: Improvements in caps or retaining devices for the ribs of umbrellas
IPC: A45B25/12
Filed: 1923-03-01
Abstract: 194,297. Colleau, L. A. March 3, 1922, [Convention date]. Holding closed. - The ribs i of an umbrella are retained in the closed position by a ring h, which is slidable on a sleeve d. A spring e, which is located between the sleeve d and another sleeve b fixed to the stick a, bears upon inwardly-projecting pins g carried by the ring h. These pins pass through bayonet slots f in the sleeve d, and allow of the ring g being moved upwards so as to disengage the ribs and then of being partially rotated to retain it in the disengaged position.
Patent GB-677656-A (GB)
Title: Improvements in or relating to electrostatic screening conduits for electric conductors
IPC: H04B15/02
Filed: 1950-03-09
Abstract: 677,656. Conduits; screened cables; couplings. AVICA EQUIPMENT, Ltd., and MILLAR, J. H. March 6, 1951 [March 9, 1950], No. 5969/50. Classes 36 and 38 (i). [Also in Group XXVIII] A flexible electrostatic screening and protective conduit for electric cables, particularly those used in ignition systems, comprises a metallically reinforced flexible moisture-proof insulating tube 1 having an electrostatic screen 3 formed of strip metal foil wound therearound with successive turns overlapping one another. The reinforcement 2 may comprise high tensile strength wire braided around the tube 1, and a secondary braided metallic sheath 4 may be applied over the screen to serve as a secondary screen and also to hold the screen 3 in place and give additional reinforcement. The assembly may be encased in an insulating sheath 5. Several layers of foil may be employed, either applied directly over each other, or having additional braided layers therebetween. In order to apply a union to the end of the conduit the ends of tubes 1 and 5 are removed leaving bared metal 9. A ferrule 11 containing a deformable metallic band 13 is mounted on the end of the conduit so that annular teeth 12 are over the end of sheath 5. A tubular spigot 8 carrying a union nut 6 is inserted within the conduit to bring annular teeth 10 into engagement with tube 1. The ferrule 11 and spigot 8 are then closed together, as by swaging, causing band 13 to grip the bared metal 9. The spigot 8 and ferrule 11 are provided with collar 15 and groove 16 respectively which engage and prevent relative axial movement of the parts, the extremity of the bared metal 9 being trapped therebetween.
Patent GB-510623-A (GB)
Title: Improvements in freezing trays
IPC: F25C1/24
Filed: 1938-02-25
Abstract: 510,623. Ice-making. GENERAL MOTORS CORPORATION. Feb. 25, 1938, No. 5986. Convention date, Feb. 27, 1937. [Class 29] A metal ice-making tray 10 is provided with a removable metal grid comprising a main wall having an upper section 13 which is movable longitudinally relative to a lower section 14 so as to tilt successively a series of transverse partitions 12. This endwise movement of the section 13 is obtained by applying a blow in either direction to a rigid projection 30, the magnitude of the blow determining the number of ice blocks removed at one time. The grid is first removed from the tray by an upward thrust on the member 30. The successive tilting of the partitions 12 is obtained by providing progressively increasing clearances 25 for shoulders 22 on the section 13 from one end of the grid to the other, these shoulders engaging the partitions. In assembling the grid the sections 13, 14 are inserted, side by side, through a temporarily widened slot in each cross-well 12, this slot being formed by bending-out a flap along two cuts 17. Fig. 9 shows a modification with normally-inclined partitions 12<1> and a long downwardly-extending projection 31 to facilitate removal of the grid. A bumping-plate 32 is secured to the projection 31. A cam surface 60 at the end of the upper section 13<1> is adapted to ride upon a lip 61 on the pan to force the pan free. The upper sections of the grid may be made of stainless steel and the lower sections, together with the pan and the cross-walls, of anodized sheet aluminium coated with grease, &c. Specifications 489,247 and 504,585 are referred to.
Patent GB-1032834-A (GB)
Title: Method and apparatus for forming a workpiece
IPC: B21D26/06
Filed: 1965-02-11
Abstract: 1,032,834. Stamping. CINCINNATO MILLING MACHINE CO. Feb. 11, 1965, No. 6073/65. Heading B3Q. Apparatus for forming a workpiece 48 about a punch 28, Figs. 1 and 2 (not shown), comprises a flexible diaphragm 46 covering the end of a fluid-filled chamber 44 in a ram 30, hydraulic cylinder-and-piston units 32, 34, 36, 38 for lowering the ram to engage the diaphragm against the workpiece, which is supported on a ring 20, means for raising the pressure of the fluid in the chamber 44, a piston 24 for pressing the punch 28 into the workpiece, and means for producing a shock wave in the fluid in chamber 44 to press the workpiece into a pattern 114 on the punch. In the embodiment, the shock wave is produced by an electric arc between electrodes 106, 108 connected to a bank of capacitors 116. Valves 52, 88 control the supply of fluid from a pump 64 for raising and lowering the ram 30 and piston 24. A further valve 70 controls the supply of fluid from low, and high, pressure pumps 84, 71 to the chamber 44. The low-pressure supply serves only to maintain the chamber full of fluid during intervals between forming operations. The high pressure supply is also connected to a pressure-regulating valve 78, the spring 102 of which may be adjusted by a cam 98 if it is desired to raise the pressure progressively in chamber 44 during entry of the punch 28. Fluid displaced by entry of the punch passes through valve 78 to a reservoir 86. The valves 70, 52, 88 may be controlled by solenoids. The workpiece may be a flat disc or a preformed part.
Patent GB-668965-A (GB)
Title: Device for preventing birds from building in chimneys
IPC: A01M29/32
Filed: 1950-03-10
Abstract: 668,965. Chimney tops. NOOTT, A. W. Aug. 14, 1950 [March 10, 1950], No. 6113/50. Class 25 A fitting for attachment to a chimney pot to prevent birds nesting therein comprises a ring a fitting within the upper end of the pot c and formed with a flange b to which are screwed or riveted a number of sharp-pointed spikes d. The fitting is secured to the pot by one or more wires f.
Patent GB-194534-A (GB)
Title: Improvements in operating mechanism for the brakes of railway waggons and like vehicles
IPC: B61H9/00
Filed: 1922-03-02
Abstract: 194,534. Jones, D. W. March 2, 1922. Compensating for wear.-In a self-adjusting wagon brake the hand-lever 5 is mounted on a short cross shaft 2 mounted in a hanger 4, and having a doubleended lever 10 provided with pins 11 adapted to engage notches 12 in the double brake bars 14, 15. The brakes 16, 17, are applied by a downward thrust on the lever 5. It the movement is excessive when they are taken off, the block hangers 18, 19 contact with fixed stops 21 and the pins 11 ride over into other notches to take up the wear. The arrangement may be duplicated on the other side of the vehicle. Stirrups 22, 23 and a safety loop 24 are provided to prevent displacement.
Patent GB-975233-A (GB)
Title: Improvements in or relating to fuel injection systems
IPC: F02M59/44
Filed: 1960-02-23
Abstract: 975,233. Regulating; engine stop gear. SIMMS MOTOR UNITS Ltd., T. PATERSON, and Z. S. MIRACKI. Feb. 16, 1961 [Feb. 23, 1960], No. 6321/60. Headings F1B and F1K. [Also in Division G3] Reverse starting of a Diesel &c. engine is prevented by a non-return valve 44 and pressure sensitive element 48 between the fuel tank and an engine-driven gear pump supplying the injection pump. Should the engine rotate backwards fuel is delivered from the inlet 32 of the gear pump and closes the non-return valve 44 whereupon the element 48 is depressed to move an engine stop control 52 having a mechanical connection with the injection pump rack. Depression of the element 48 opens a relief passage 51. A hand priming pump 53 is connected across the gear pump. The rack is normally actuated by a centrifugal governor, e.g. as described in Specification 968,521, and its movement in the delivery increasing direction is limited by a stop constituted by a shaped plunger positioned by the pressure generated by the gear pump.
Patent GB-1415686-A (GB)
Title: Voided films
IPC: B29C55/00
Filed: 1973-02-09
Abstract: 1415686 Voided polyester/polyolefin films IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Oct 1973 [24 Oct 1972 9 Feb 1973] 48931/72 and 6396/73 Heading B5B [Also in Divisions G2 and B2] An opaque voided polyester film which comprises 3 to 27% by wt. of a homo- or copolymer of ethylene or propylene blended with a linear polyester is made by extruding a loosely blended mixture of the polymers as a film, quenching, biaxially orienting the film by stretching in 2 mutually perpendicular directions and heat setting the film. The stretching creates voids in the film around the homo- or copolymer particles which opacify the film. Preferred are films of polyethylene terephthalate with polypropylene which are at least 25 Á thick and have a luminous transmission of up to 30%.