baber/WOPTO huggingface dataset:
Patent GB-975911-A (GB)
Title: Improvements in or relating to pulse generators
Inventor: FITCH RICHARD ANTHONY
IPC: H03K3/53
Filed: 1961-05-18
Abstract: 975,911. Pulse generators. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. May 14, 1962 [May 18, 1961], No. 18136/61. Heading H3P. A high-voltage pulse-generator comprises two sheets 1, 2 of conductive material and two sheets of insulant (not shown) arranged alternately and wound together in a roll to form a structure which may alternatively be regarded as a roll capacitor or as two openended strip transmission lines having a common conductor. The path of propagation through one of these lines is indicated by a broken line (this is the " active " line) and the path through the other (the " passive " line) is not marked. The sheets may be charged from a source (not shown) and a discharge may be initiated by closing a switch which is connected across one of the transmission lines formed by the sheets at points AO about midway along it. It is stated that a voltage having a value about one hundred times the charging voltage is built up between the extremities of the sheets and that a triangular pulse having a peak amplitude may be derived between terminals at the inner and outer ends of one of the sheets. The described mode of operation of the generator is not amenable to detailed abridgement but may be deduced by considering the effects of the travelling waves which originate at OA when the switch is closed and propagate in the directions shown towards the open end of the " active " transmission line. Only half of the capacitor is discharged during the time the wave takes to travel to the extremities of the line. At these points it is reflected and recharges the line but at a potential opposite in sign to the original potential across the line. On arrival of the waves at the switch a total voltage of 2nV (n is the number of turns, V is the charge voltage) exists between the extremities of the sheets and upon the second arrival of the waves at the switch this voltage again becomes zero. The cyclic process is theoretically endless, but in practice is limited, amongst other things, by (a) resistive losses due to small skin-depth and small characteristic impedance; (b) coupling between the ends of the lines. Improved performance can be obtained by tapering the ends of the lines, by inserting a ferromagnetic core to increase the inductance or by separating the ends of the sheets by 180 degrees. Switch inductance is reduced by using high-pressure gas, liquid or solid dielectric switches. The conductors may be made of aluminium foil and the insulators from polyethylene tetraphthalate. The whole winding is potted in an epoxy resin.
Patent GB-336605-A (GB)
Title: A fruit picking bag
IPC: A01D46/22
Filed: 1929-06-13
Abstract: 336,605. Sibeth, E. F. June 13, 1929. Aprons.-A fruit picking bag in the form of an apron comprises a more or less rectangular part 1, suitably gathered at 2a for attachment to the belt 2 of a harness for supporting the load on the person, the part 1 being gussetted at 10. The belt 2, which is provided with a buckle 7 for engaging one of a series of holes 8, passes through loops 9 on the harness straps 6 which are at the back of the wearer when the harness is in wearing position. At each corner 3 of the part 1 is provided a ring for engaging hooks 4 to convert the apron into a bag. The gussetted portions 10 may be replaced by parts having a lacing cord passing through eyelets and a ring and hook on the side of the part 1 and capable of engaging one another.
Patent GB-118534-A (GB)
Title: Improvements in and relating to the Extinguishing of Fires.
Inventor: MEIGS CHARLES HARDY
IPC: A62C5/00
Filed: 1917-12-07
Abstract: 118,534. Meigs, C. H., and Epps, F. A. Dec. 7, 1917. Fire-extinguishing by foam. - The component solutions are normally maintained separate and are delivered in stream form in substantially opposite directions so that they meet head-on. The foam is produced close to its point of application, which may be an oil tank. Figs. 1 and 2 show a form of apparatus in which the liquids are delivered in opposite directions through the pipes 10, 11 to heads 12 held at a fixed distance apart by yokes 13. The heads are normally closed by valves normally held on their seats by levers 16, having their ends formed to give a toggle effect and held rigid by a fusible member 16a. On the fusion of the member 16<a>, the spring 17 assists the opening of the levers 16 and consequent opening of the valves. In the form shown in Fig. 6, the liquids are led through passages 20 in the casting 21 to the oppositely-directed openings normally closed by valves 27 normally held in position by the fusible strut 28. The liquids used may comprise a solution of 11 parts aluminium sulphate in 89 parts of water, and a second solution comprising 3 parts " Foamite," 8 parts sodium bicarbonate, and 89 parts of water. The composition of " Foamite " is given in Specification 118,533.
Patent GB-561133-A (GB)
Title: Improvements in and relating to re-inforced concrete roof structures
IPC: E04C3/293
Filed: 1942-12-21
Abstract: 561,133. Roofs. MATTHEWS, C. B., and AMBROSE, J. G. Dec. 21, 1942, No. 18149. [Class 20 (iv)] A roof truss is formed of inclined reinforced concrete beams 1 joined at the top and connected at the bottom by tie rods 4 which are held together by stirrups or cross members 6, 7 preventing distortion of the rods by compression during suspension of the truss in erection. The tie rods are connected to the top of the truss by bars 5 which may be embedded in concrete.
Patent GB-637461-A (GB)
Title: Improvements in photographic cameras associated with electrically operated devices
IPC: G03B9/58
Filed: 1947-07-09
Abstract: 637,461. Photographic cameras. KALART CO., Inc. July 9, 1947, No. 18151. Convention date, April 14, 1944. [Class 98 (i)] A photographic camera including a circuit system for controlling electricallyoperated devices associated with the camera and also comprising a casing with guiding means for selectively receiving a plate or film holder including a slide, or a camera back, is characterized in that switch means are included in the circuit system and controlled by the position of the slide in the holder or the position of the camera back so as to render the circuit system inoperative when a holder with the slide in the inserted position or a camera back is received by said guiding means. The Figure shows a rear view of a camera according to the invention. Two links 14, 15 are pivoted at their outer ends and have a pin-and-slot connection with each other. The pivot of 14 is extended to form a crank 22 which engages under a spring contact 24. When no holder is in position this contact engages another contact 26 and holds the crank 22 in a position in which the links 14, 15 are out of line. Insertion of a holder straightens the links, opening the contacts. Removal of the cover slide allows the links to move out of line and close the contacts which may then allow firing of a flashlight and electromagnetic shutter operation. Specification 600,230 is referred to.
Patent GB-1215685-A (GB)
Title: Process for producing surface coated zinc oxide
IPC: G03G5/08
Filed: 1969-04-09
Abstract: 1,215,685. Coated zinc oxide; cadmium sulphide. FUJI SHASHIN FILM K.K. 9 April, 1969 [9 April 1968], No. 18255/69. Heading C1A. [Also in Division H1] CdS is formed by heating to above 40‹ C. an aqueous solution containing a soluble cadmium compound and a sulphur containing compound which decomposes above 40‹ C. to give sulphide ions. In the embodiments ZnO particles are coated with CdS by suspending them in the aqueous solution. The sulphur compound may be thioformamide, thioacetamide or thiourea whilst the cadmium compound may be the chloride, bromide, iodide, nitrate, sulphate or acetate. If required the coating process is performed above 100‹ C. in an autoclave. Acetone may be added to speed the reaction.
Patent GB-577733-A (GB)
Title: An improved sanitary cabinet
IPC: A47K11/10
Filed: 1944-09-26
Abstract: 577,733. Bobbin cases. MACKENZIE, A. K. Sept. 26, 1944, No. 18353. [Class 18] [Also in Group XIV] A casing a is hinged to a rear wallplate band has a front aperture k through which toilet paper can be withdrawn from a holder which preferably has flanges y, to hold a toilet-paper pack and also slotted lugs u which can alternatively support the spool of a toilet roll. An ashtray m and mirror e can be mounted externally and the interior is intended for the storage of a lavatory brush g and other cleaning requisites.
Patent GB-660657-A (GB)
Title: Improvements in sealing devices for mechanisms under fluid pressure
Inventor: BUCKLER RONALD WALLACE
IPC: F16L37/34
Filed: 1948-07-08
Abstract: 660,657. Valve closure members. STERLING INDUSTRIES, Ltd. June 16, 1949 [July 8, 1948] No. 18424/48. Class 135. [Also in Group XXVIII] Sealing rings A, B and C, e.g. of natural or synthetic rubber or synthetic plastic material, are mounted in recesses formed in the internal corner angles of parts of an apparatus so as to present convex surfaces which seal against external corners of relatively movable parts. As shown, the rings are mounted in a pipe coupling comprising parts 5a, 6. The part 5a carries a spring-loaded closure member 4, the corner 7 of which engages the ring B when the parts are uncoupled. The part 6 has a spring-loaded closure member 11 carrying the ring C which engages a convex corner 14 when the parts are uncoupled, and the ring A is mounted in the member 4 to engage a corner 5 on the part 6 when the parts are coupled.
Patent GB-1016217-A (GB)
Title: Vehicle windows
Inventor: BERQUIST BRIAN DOUGLAS
IPC: B60J1/20
Filed: 1963-05-10
Abstract: 1,016,217. Wind deflectors. TRIPLEX SAFETY GLASS CO. Ltd. Aug. 10, 1964 [May 10, 1963], No. 18524/63. Heading B7J. A motor vehicle has a window in the form of a rigid, transparent wind-deflecting shield 16, Fig. 3, projecting outwards and rearwards from one side of the passenger compartment and defining together with this side, a chamber 18, the side having an opening 15 affording communication between the interior of the compartment and the interior of the chamber, the rear part of the shield being spaced from the side of the compartment to form a rearwardly opening gap 19 between the shield and the side (i.e. a conventional window 14), and an adjustable flap 20 movable to the position shown in which it is transverse to the one side of the compartment and in which it closes the gap whereby the chamber is no longer in direct communication with the surrounding air. The flap which is also transparent is hinged to a vertical pillar 21 in which the window 14 is slidable. The shield is mounted on a door 13 by means of a glazing channel 17 and the gap between the lower edge of the flap 20, in its closed position, is perman - ently closed by a fixed plate 22. The shield is curved so as to form continuations of the curves of the vehicle roof and the windscreen 11. When the flap is pivoted to the open position it extends partly into the opening 15. In an alternative arrangement the shield is formed as an integral exterior of the windscreen.
Patent GB-1215528-A (GB)
Title: Improvements relating to the parting or near-parting of sheet material
Inventor: FISH FRANCIS EDWIN
IPC: B26D1/00
Filed: 1968-04-19
Abstract: 1,215,528. Heat-severing of plastics material. F. E. FISH. 18 July, 1969 [19 April, 19681, No. 18530/68. Heading B5A. Panels of thermoplastic material, e.g. for umbrellas, are parted from a web by passing the web over a pattern cylinder bearing the parted shape in the form of a line relief, a heated contact member pressing on the other side of the web to produce melting and squeezing resulting in a weakened portion edged by a beading. The parted or near parted material is wound on a drum for storage or passed to separating apparatus. The scroll drum 1 carries a rib 2 of metal of #-1/16 inch in width, defining a triangle. The web passes between the drum, and an electrically-heated wire 7 urged by abutments 11 is adjusted so as just to melt and squeeze the thermoplastic web. Alternatively, a heated drum or bar (Fig. 1, not shown) is used, and two sequential pieces of apparatus may act twice on the web to cut complementary portions, especially when the heated member is a drum. There may be two patterned relief ribs on the same drum (Fig. 6, not shown); and for fragile webs, the heated member, e.g. a wire, may pass between the thermoplastic web and a supporting web of non-melting stronger material, e.g. fibre glass (Fig. 11, not shown). When the pattern rib is mainly normal to the direction of web feed, the heated pressure member may be at an angle thereto. Nylon, acetate rayon or Terylene (Trade Mark) are preferred materials and they may be woven or in sheet form.
Patent GB-237606-A (GB)
Title: Improvements in or relating to steam cleansing devices for locomotive and similar boilers
IPC: F22B37/48
Filed: 1925-07-21
Abstract: 237,606. Aktiebolaget Superior. July 22, 1924, [Convention date]. Cleaning, fluid-pressure processes for. - A steam blower for cleaning boilers is arranged to give a fan-shaped jet and has the nozzle made of fireproof material and arranged permanently within the furnace, the steam supply tube or the nozzle being (1) rotated automatically or (2) rotated or oscillated by hand. In the first case, the nozzle which is only active through angle a, Fig. 1, has the blower tube 7, Figs. 3 and 4, supplied with steam through a port 10, controlled from the driver's cab, which also admits steam to a small steam engine 11 or a turbine serving to rotate the tube. The port 22 is arranged to admit steam to the tube 7 only through the active angle of rotation. Rotation through the active angle is arranged to be slow and through the inactive angle to be rapid by ratchets 14, 18 operated by a reciprocated rod 13 of the engine &c. 11 and engaging teeth of spur-wheels 16, 17 of different diameters, both of which are fast on the blower tube 7. The smaller wheel 16 has no teeth in the interval corresponding to the active angle so that in this interval the blower tube is rotated by ratchet 18 at a relatively slow rate owing to the relatively large diameter of wheel 17. In the inactive interval ratchet 14 is operative and rotates the blower at a faster rate.. Further adjustment of the rate of rotation during the active interval is effected by providing an inclined adjustable plate 20 which is arranged to lift ratchet 18 off its spurwheel at any predetermined point, thus adjusting its effective stroke. The teeth of wheel 17 may go right round the wheel. If desired the nozzle 8 only may be rotated, connection with the actuating-mechanism being effected by a rod passing through the blower tube. The blower may also be operated by an electric motor In the case of actuation by hand, this is effected according to Fig. 7 by a worm 26 rotated through a shaft 27 from the driver's cabin and operating a wheel 25 secured to the blower. Stops are preferably provided to limit oscillation to the action angle. In the arrangement shown in Fig. 8, a nut 29, prevented from rotating, is carried on a screw 31 rotated by hand and has a pin 30 engaged by a fork 28 carried by the blower tube, the fork being limited in its movement by stops. In alternative arrangements, the fork 28 is dispensed with, the nut 29 being elongated and provided on its under surface with a rack engaging a spur wheel on the tube 7, or a circular rack 33, Fig. 9, may be employed engaging a spur wheel 32 on the tube 7 and rotatably connected to a screw 34 operated by hand.
Patent GB-809894-A (GB)
Title: Corneal contact lenses
IPC: G02C7/04
Filed: 1957-06-13
Abstract: 809,894. Contact lenses. LEWISON, L. June 13, 1957, No. 18618/57. Class 97(1) A corneal contact lens has its inner face curved to a greater extent than the cornea so as to have contact with the eye only at the periphery of the lens, the latter being provided around its edge with a plurality of spaced circularly contained recesses constituting tear and air passages-the contact between eye and lens taking place between the said recesses. As shown, the concavo convex meniscus 1 has an outer surface 2 and an inner surface 3 of curvature greater than that of the cornea. Provided around the edge 5 and in the face 3 are inwardly extending recesses 4 through which air and fluid may pass and which terminate radially inwards from the area of contact between lens and eye.
Patent GB-595882-A (GB)
Title: Improvements relating to cases, more especially cigarette cases
IPC: A24F15/20
Filed: 1945-07-20
Abstract: 595,882. Cigarette &c. cases. BEATON, R. July 20, 1945, No. 18633. [Class 18] A case, particularly for cigarettes, comprises a shell 1, open at its two lateral ends, two open topped pockets 3, 4 movable into and out of the shell, one through each of the lateral ends and means interconnecting the two pockets, whereby the movement imparted to one is imparted also to the other. The two pockets 3, 4 are pivoted at 5, 6 within the shell 1 and are interconnected by links 10, 11 hinged at 12, 13 to the pockets and to each other at 14. The link 10 hinged to the pocket 3 has an upward extension 10a having a slot 15 engaged by a pin 16 projecting from a lug 4c. on the pocket 4. The pockets are held in the closed position by hemispherical projections 7 on the walls of the pockets which engage frictionally the inner surfaces of the shell.
Patent GB-202293-A (GB)
Title: Improved apparatus for emptying the water-ballast tanks of submarine and other submersible vessels
IPC: B63G8/22
Filed: 1923-07-19
Abstract: 202,293. Schneider et Cie. Aug. 12, 1922, [Convention date]. Submarine vessels.- In ballast tanks for submarine vessels which are emptied by air under pressure discharged through the pipe e, the ballast water being expelled by way of the valve C, the water ballast lying below the valve C is discharged, after that valve has been closed, through the pipe F the lower end of which extends to the lowest point of the ballast tank, whilst the open upper end projects beyond the top of the tank.
Patent GB-256604-A (GB)
Title: Improvements in or relating to driving centrifugal machines
IPC: B04B9/12
Filed: 1926-07-27
Abstract: 256,604. Schmit, C., and Ramesohl & Schmidt Akt.-Ges. July 27, 1926. Driving; suspending.- The bowl 14 of a centrifugal machine is supported and driven by a spindle made in two parts 8, 1. The lower part 1 is hollow and dips into an oil bath 7. The coupling 2 between the parts 1, 8 of the shaft is constructed to act centrifugally on the oil which rises up the bore of the part 1 when the machine rotates. This action causes the oil to rise up the tube 3, which encloses the part 8 of the spindle, to the neck bearing 4; from this bearing the oil passes down the wall 12, through the central bearing 5, the conduit 15 and the lower bearing 16 to the bath 7. An inspection window 6 is arranged in the lower part of the machine. Packing 9 is provided above the neck bearing, either of the, plates 10, 11 being adjustable. The machine is driven by an electric motor 13. Where a more compact construction is desired the part 8 of the spindle may be arranged inside the hollow part 1.
Patent GB-427934-A (GB)
Title: Improvements in or relating to gas-meters operating under high pressure
IPC: G01F3/22
Filed: 1934-06-25
Abstract: 427,934. Gas meters. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN MEAF, (formerly NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN), 30, Croeselaan, Utrecht, Holland. June 25, 1934, No. 18753. Convention date, June 24, 1933. [Class 54] In order to prevent damage to high pressure gas meters by large pressure differences forming between the measuring chambers when the gas inlet valve 17 is opened or closed spring-loaded relief valves 23 are provided in the walls of the measuring chambers 3, 4, 5, 6.
Patent GB-1168713-A (GB)
Title: Improvements in Moving Grate Furnaces.
Inventor: HUGILL JOHN MARTIN
IPC: F27B21/06
Filed: 1967-04-24
Abstract: 1,168,713. Sintering apparatus. HEAD WRIGHTSON & CO. Ltd. 17 April, 1968 [24 April, 1967], No. 18769/67. Heading F4B. A moving grate pelletizing machine comprises a chain of pallets 1 movable successively through a heating zone 3 and a cooling zone 4, means to pass hot gas through the heating zone and cool gas through the cooling zone, and means to recover gas heated by passage through the cooling zone 4 for recirculation to the heating zone, said means for recovering and recirculating said gases comprising an ejector pump 10. As shown, a final series 7 of windboxes 2 blows cool air upwards through the grate into the cooling hood 4 which is divided into two zones 8 and 9, the air from the smaller, cooler portion 9, tempered if necessary at 12 with a small amount of cold air, supplying primary air to the nozzle of the ejector pump 10 by means of a fan 11, the jet of primary air from the nozzle entraining the larger amount of air from portion 8 and delivering it under pressure to the heating zone 3, where it is heated to the desired temperature by the combustion of fuel therein.
Patent GB-121121-A (GB)
Title: Improvements in Files.
Inventor: JANO LUIGI
IPC: B23D61/16
Filed: 1918-11-15
Abstract: 121,121. Jano, L. Nov. 29, 1917. [Convention date]. Files.-A file having teeth of variable depth and adapted to be readily sharpened comprises rows of rhomboidal plates pivoted in a box or trough shaped holder and adjustable on the pivots to vary the depth of the protecting cutting-edges. As shown, the rhomboidal plates 2 are guided in a box or holder 1 having a handle 11 and are pivoted on pins 3 the ends of which slide in grooves 4 in the sides of the box. Alternate rows of plates are staggered or break joint as shown in Fig. 4. At the ends of the rows are blocks 5, 8 movable by screws 6, 10 by which the plates may be moved to project the cutting-edges upwards more or less, Fig. 1, according to the cut required, or to adjust their upper surfaces into the same plane for sharpening, Fig. 2. The pivot pins 3 may be in perforations in the sides of the box, instead of in grooves 4, and spaced apart so that the plates can turn sufficiently for the required adjustment.
Patent GB-223641-A (GB)
Title: Improvements in or relating to roller blinds
IPC: E06B9/44
Filed: 1923-07-21
Abstract: 223,641. French. G. F., French, R., and Pinch, W. H. July 21, 1923. Roller blinds, attaching to rollers. - A paper or cloth blind a is provided with a band b of rubber latex, gum, &c. and is so arranged that a portion of the blind is secured to the blind itself after passing found the roller. In a modification the band b may be placed at a distance from the end. In another modification shown in Fig. 5, the top edge of the blind is provided with tabs which pass through slots f in the blind. In a futher modification the blind is gummed to form a loop and portions of the loop are cut to form tabs gummed on their underside for attachmetnt to the roller. In another form the blind is made with a gummed loop which is wetted before or after the roller is passed through the loop. The loop may be provided with holes for this purpose. The gum &c. may, in addition, be applied to the roller, and the edges of the blind, which may be plain or hemmed, may have a coating of gum &c. to prevent tearing. When rubber latex is used it may be vulcanized after being applied to the blind and the gummed &c. parts may be faced with muslin &c. The blind lath may be secured in a similar manner and a gummed tab provided for the attachment of a tassle. Reference has been directed by the Comptroller to Specification 13020/13.