baber/WOPTO huggingface dataset:
Patent GB-513700-A (GB)
Title: Improvements in grab dredgers
IPC: E02F3/413
Filed: 1938-04-13
Abstract: 513,700. Grab-buckets. WILLIAMS, J. C. April 13, 1938, No. 11423. [Class 78 (iv)] In a grab for submarine use, the bucket is closed on reaching the sea bed by means of a prime mover actuated by the pressure of the surrounding water. In the embodiment shown the prime mover consists of a piston- and-cylinder unit 30, 21. When the grab rests on the sea bed, the hoisting cable 27 becomes slack and a spring 28 depresses a plunger 26 attached to the cable, and through rods 24, 25 opens a valve 23 to allow water to enter the cylinder 21 and force the piston 30 upwards. Racks 31 carried by the piston move upwards and by engagement with gears 32 rotate cranks 34 connected by links 35 to the bucket parts 10 to close the bucket. When the cable is now brought taut, the valve 23 is closed by the rod 24 and the bucket held closed until it is withdrawn from the water and the valve opened by a hand lever 37. Water then drains from the cylinder through the port 22 and the bucket is opened by counterweights 38. In a modified arrangement, Fig. 5, the valve 23 is opened as the bucket approaches the sea bed by a plunger 41 co-operating with a valve lever 43 and provided with a shoe 45. To assist opening of the bucket a tank 39 is connected to the cylinder by a pipe 40, and to assist the closing of the bucket and to release the bucket should it encounter a projecting rock or a wreck this tank is connected to an air pump 54 and the cylinder also connected to a liquid pump 56 by a hose 55. A valve 58 in the hose may be controlled manually by means of a cable or automatically by means of a roller 64 engaging a cam 62 attached to one of the racks 31. In an alternative arrangement, Fig. 3, the grab may be released at any time by opening a valve 48 by means of a cable 50 to allow water to drain from the cylinder to a tank 46, and the closing of the bucket may be assisted by connecting a pipe 51 to a pressure pump. To effectively seal the bucket when it is closed, one of its jaws is provided with a rubber tube 13 with which the other jaw, 14, co-operates. This tube contains water maintained at a pressure greater than that of the water surrounding the grab by means of a spring-pressed plunger 17 in a cylinder 16 connected to the tube by a pipe 15 and communicating with the surrounding water through a port 20.
Patent GB-376828-A (GB)
Title: Improvements in or relating to high voltage electric switchgear
IPC: H02B1/00
Filed: 1931-04-17
Abstract: 376,828. Electric switchgear. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, and CHRISTIE, J., 4, Sidecliff Road, Sunderland. April 17, 1931, Nos. 11426 and 20530. [Class 38 (v).] The potential transformer fuses in H.T. switchgear structures are mounted within insulating tubes, each of which is surrounded by a metal tube constituting the innermost layer of a condenser type bushing insulator which supports the whole of the fuse unit in the cover of the potential transformer tank. As shown in Fig. 1, the fuse G is mounted within an insulating tube K and is provided with spring contacts G1 at its upper end bearing against a metal tube K<2> which is connected to the bearing K4 of the blade L of an insulating switch which normally engages a contact B<1> connected to the feeder B. The lower contact of the fuse G normally bears, as shown in Fig. 2, on a metal cap H<1> which is connected to one of the terminals of the potential transformer, the cap H<1> being screwed into a metal tube H which surrounds the lower part of the insulating tube K and which forms the innermost member of a condenser bushing F passing through the cover E<1> of the transformer tank E, the outermost member of the bushing F being in contact with the short earthed trunk E<2> connecting the transformer tank E with a depending portion of the structure. To grade the electric stresses in the insulating tube K when the fuse has blown and to prevent corona discharge from the thin fuse wire during normal working a number of short overlapping metal sheets K<3> are interleaved with the paper layers of the tube K, these condenser layers thus grading the stress between the lower end of the metal tube K<2> and the upper end of the metal tube H, which is at the same potential as the lower contact of the fuse. The fuse is provided with an insulating handle G<2> by which it may be withdrawn through the upper end of the insulating tube K. The upper end of the tube is provided with a pivoted flap J<1> which is interlocked with the operating mechanism of the isolating switch blade L so that the flaps may be raised only when the blade L is engaging an earthed terminal L<1>. Separate isolating switch blades D are provided for connecting the feeder terminals B<1> to the circuit-breaker terminals or for earthing the latter. A limiting resistance may be mounted above the fuse, especially when the fuse is of the liquid-filled type, so as to be connected in series with the fuse and to be removable with the fuse-holder. The various casings, including the insulating tube K, are oil-filled.
Patent GB-1064845-A (GB)
Title: Inhibiting polymerisation
IPC: C07C51/50
Filed: 1966-03-10
Abstract: The polymerization of styrene is inhibited by the addition thereto of nitroso-benzene or a halogen and/or alkyl derivative thereof, beta-nitroso-alpha-naphthol, p-nitrosophenol, or an N-nitrosodiarylamine.ALSO:The polymerization of methyl and cetyl methacrylates is inhibited by the addition thereto of nitrosobenzene or a halogen and/or alkyl derivative thereof, beta-nitroso-alpha-naphtol, p-nitrosophenol, or an N-nitroso-diarylamine.ALSO:Coloured polymers are made by polymerizing monomers, e.g styrene and methyl and cetyl methacrylates, containing a coloured nitroso compound selected from nitrosobenzene and its halogen and/or alkyl derivatives, beta-nitroso-alpha-naphthol, p-nitrosophenol or an N-nitrosodianylamine, such compounds functioning as polymerization inhibitors prior to the addition of a polymerization initiator.
Patent GB-566162-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R21/02
Filed: 1943-07-14
Abstract: 566,162. Microphones. ERICSSON TELEPHONES, Ltd., ANSON, B. O., and WARD, S. H. D. July 14, 1943, No. 11479. [Class 40 (iv)] The casing of a microphone of the inset or capsule type comprises a metal front portion 2 forming a support for a diaphragm, and a rearward portion 1 forming a granule chamber 4 moulded from insulating material and united to the front portion during the moulding process. The joint between the two portions may be as shown in Fig. 1, or in Fig. 2. The granule chamber may be substantially cylindrical, as in Fig. 1, or dome-shaped, as in Fig. 2. The granules in the chamber 4 may be covered by washers in known manner or by a diaphragm seated against a shoulder 5 and held in place by a wire clip fitted in an annular groove 6. The microphone may be of the kind described in Specification 366,221, in which case the groove 6 is replaced by a screw-thread for a screwed clamping ring.
Patent GB-514683-A (GB)
Title: Apparatus for the production of road surfacing material
IPC: E01C19/10
Filed: 1938-04-14
Abstract: 514,683. Plant for making bituminous roadmaterial. ALMOND, A. F. April 14, 1938. No. 11515. [Class 107] Apparatus for the continuous heating and drying of stones or sand, or other aggregate, and mixing the dried material with bitumen comprises a rotatable drying chamber a from which the aggregate is transferred by a tilting receiver e to a moisture-expelling chamber d. From such chamber, the material descends by a shoot f to a rotary mixing chamber g to which bitumen is supplied from a tank j by pipe h and tilting receiver k. The latter is used also to transfer the mixed material to a discharge device l. The Provisional Specification states that the apparatus may be used also for mixing concrete.
Patent GB-1017309-A (GB)
Title: Improvements in or relating to holders for replaceable cutting tips or blades
Inventor: EVANS HENRY
IPC: B23B27/16
Filed: 1963-03-23
Abstract: 1,017,309. Tools; shearing. HIGHER SPEED METALS Ltd. June 3, 1964 [March 23, 1963], No. 11593/63. Headings B3B and B3W. A tool-holder comprises a securing pin 9 projecting laterally from a stem 7 urged in a direction to hold a tool 15 against a seating. The stem is urged by a screw 11, Fig. 1 (not shown), or a screw 18, Fig. 6 (not shown). For a pentagonal, square, round or triangular bit 15, Fig. 14 (not shown), a seating member 23 is provided. A chip-breaker 26, Fig. 21, has a flange 29 which may be clamped between the holder 1 and the bit 15, as in Specification 1,017,308. Shims may be inserted behind the bit. In a shearing tool, the blade 33, Figs. 22 and 23 (not shown), is clamped by screws 19 moving stems 7 carrying pins 9 engaging the blade. The pins may act as wedges as indicated at 9A.
Patent GB-1506433-A (GB)
Title: High pressure sodium vapour lamps
IPC: H01J61/30
Filed: 1975-03-20
Abstract: 1506433 Metal vapour lamps GENERAL ELECTRIC CO 20 March 1975 [1 April 1974] 11614/75 Heading H1D In a high pressure Na vapour lamp charged with Na amalgam in excess and inert gas, e.g. Xe, with 10-40% W./W. Na, in an alumina discharge envelope of uniform bore 3À0-7À5mm. between the electrodes, over which space the loading is 14-24 W./cm<2> of external surface, to run at given wattage 50-300 W and voltage drop 20-180 V.r.m.s., the bore is selected within  20% from Fig. 2, after which the cooling of the coolest part is adjusted for optimum efficacy lumens/W. Voltage gradient is a function of heat loss, the lumens/W. passing through a peak at same voltage drop (Fig. 1, not shown); to operate at a given volt drop the heat loss is adjusted for optimum lumens/W. while the inter-electrode gap is chosen for the required voltage drop. The voltage drop is preferably just below 50% of the r.m.s. alternating mains voltage, allowing a ballast reactor to be used. Control of heat loss is applied to the coolest part, the sealed-off metal, e.g. Nb, exhaust tube at the lower end of the lamp (Fig. 3, not shown) where excess amalgam collects: the exhaust tube may be altered in length, roughened or painted. The heat impedance of the metal connection to the exhausttube may be varied. The envelope lies in an outer evacuated glass envelope carrying a base.
Patent GB-1280991-A (GB)
Title: A vibratory device
Inventor: BELL PETER MARTIN
IPC: B65G27/00
Filed: 1968-03-09
Abstract: 1280991 Vibratory conveyers ROEVACBELL Ltd 9 June 1969 [9 March 1968] 11627/68 Heading B8A [Also in Division F1] A vibratory device comprises a chamber 10 adapted to be connected to a supply of compressed air 12, an opening to the chamber and plate means 16 overlying the opening and urged into sealing relationship therewith solely by a plurality of springs 18 located outside the chamber and by the mass of the plate and/or the mass of the means to be vibrated by the device fixed to the plate. In a modification (not shown) the springs are leaf springs arranged such that rotary motion is imparted to the plate means in addition to linear motion. The device is suitable for transmitting vibratory movement to vibratory bowl or linear feeders.
Patent GB-493028-A (GB)
Title: Bright annealing furnace
IPC: C21D9/56
Filed: 1938-04-19
Abstract: 493,028. Annealing furnaces. ROCHLING'SCHE EISENUND STAHLWERKE GES. April 19, 1938, No. 11712. Convention date, April 20, 1937. [Class 51 (ii)] In a bright-annealing furnace for metal strip a, which is drawn through an annealing chamber d and a cooling chamber (not shown), and is protected by a gas heavier than air, e.g. blast-furnace gas, fed through a pipe g, the strip a passes into, and out of, the bottom of the furnace through gas-collecting chambers i, provided with a baffle k, to ensure exclusion of air.
Patent GB-663628-A (GB)
Title: Multiple television projector
IPC: H04N9/18
Filed: 1948-04-29
Abstract: 663,628. Cathoderay tubes. RADIO CORPORATION OF AMERICA. April 29, 1948 [April 29, 1947], No. 11765/48. Class 39 (i). [Also in Groups XX and XL (b)] A cathode-ray tube 31 forming part of a multiple television projector [see Group XL (b)], is positioned at the focus of an optical system comprising reflector 39 and connecting lens 46. For focusing adjustment the tube is supported in two rings 58, 156 attached to a rod 89 adjustable axially by knob 108. The ring 58 supporting the tube face is carried by an insulator 88 and includes a corrugated member 166 (see Fig. 5), which firmly supports the tube bulb 165 and in addition serves as a contact for the second anode connecter 167. The H.T. cable 186 extends through a bushing 188 and terminates in smooth rounded connecter 189. Lateral displacement of ring 58 is prevented by a second insulator 110 guided by rod 112. The tube magnetic deflector yoke 52 is carried in a sleeve 115 and is mounted for axial and rotational adjustment in ring 116 to permit control of the size and angular position of the projected image. Ring 116 is supported by a rod 126 carried by a further rod 113 capable of axial adjustment by knob 146. Rotational adjustment, Fig. 4a, is effected by a screw 143 carried in the arms of U-bracket 139 attached to rod 126. The screw engages a nut 132 formed with trunnions 134 received in the arms of a second bracket 136 attached to the sleeve 115. Aperture 42 in reflector 39 permits the entry of an air blast for cooling. Specifications 537,738 and 627,983 are referred to.
Patent GB-293676-A (GB)
Title: Improvements in tobacco pipe cleaners
IPC: A24F9/12
Filed: 1928-04-21
Abstract: 293,676. Greenwood, A. April 21, 1928. Tcbacco-pipe cleaners.-In a device for cleaning pipes by burning a combustible charge in the bowl, a tapered plug A is formed with a hole to receive the stem of a a match b and is fitted with a rubber ring a to make a joint with the bowl X. A perforated disc B of potassium chlorate and flour is fitted over the stem of the match, and a cover D, Fig. 3, fits over the plug when not in use. In a modification, Fig. 4, the plug is formed with a container C for the combustible discs B, formed in two parts C', C<2> and fitted with a cork c. A sleeve A<3>, having a hole a<4> for a match stem, adapts the ping to different sized bowls. The container C may alternatively be used as a cosmetic holder, cachou case, snuff box, scent-bottle holder, &c.
Patent GB-305189-A (GB)
Title: Process for the manufacture of decorative sheet material
IPC: B44C3/08
Filed: 1928-04-21
Abstract: 305,189. Soc. des Usines Chimiques Rh¶ne-Poulenc, (formerly Chimique des Usines du Rhone). Feb. 3, 1928, [Convention date ]. Material; ornamenting. -Sheet material which is plastic when heated. such as celluloid or material the basis of which is cellulose acetate, ethyl, methyl, or benzyl cellulose, or similar cellulose compounds, is decorated by applying dyed, printed, stenci11ed, or decorated fabrics made of cellulosic material which is plastic when heated, the structure of the fabric being caused to disappear entirely in the compound sheet obtained. The original sheet may be plain, uniformly coloured, or variegated. The fabric is placed on a single sheet or between two sheets, and pressure is applied by heated platens or rollers, which may be engraved; also, sheets and fabrics may be superposed to produce different patterns on the faces of the compound sheet. The process may be facilitated by softening the sheet or fabric or both by applying p1astifying-agents or solvents, the former being dissolved in volatile liquids, which, where the fabric is treated, shou1d be such as do not disso1ve the fabric or on1y dissolve it when hot. The softening-agent may consist of a mixture of an aliphatic alcohol with an aromatic hydrocarbon or with water, e.g. alcohol and water or methyl alcohol and toluene. P1astifying-agents may be incorporated in the fabric as described in Specification 218,913, [Class 2 (ii), Cellulose &c.]. In an example, printed ce11u1ose acetate fabric impregnated with a solution of benzyl alcohol in a mixture of benzene and ethyl alcohol is placed on a sheet of cellulose acetate, and the whole is pressed between smooth, matt, or engraved plates in a hydraulic press at 100‹ C. In a further example, a sheet based on cellulose acetate or nitrocellulose is impregnated with a solution of ethyl lactate in acetone or in a mixture of benzene and ethyl alcohol, the impregnation being carried out continuously by passing the sheet over a sizing- roller. A decorated cellulose-acetate fabric is applied to the sheet, and the compound sheet is passed between the heated cylinders of a calendering-machine.
Patent GB-1436524-A (GB)
Title: Synthesis of zeolites
IPC: C01B39/44
Filed: 1974-03-18
Abstract: 1436524 Ferrierite BRITISH PETROLEUM CO Ltd 18 Feb 1975 [18 March 1974] 11844/74 Heading C1A The zeolite ferrierite is prepared by heating at autogeneous pressure an aqueous gel containing (a) an alkali or alkaline earth metal hydroxide, (b) alumina or an alkali metal aluminate, (c) colloidal silica sol or an alkali metal silicate, and (d) N-methylpyridinium hydroxide; the amounts of reactants are such that the SiO 2  : Al 2 O 3  ratio is 5 to 160 : 1, the M 2 O : SiO 2  ratio is 0À07 to 1À8 : 1, the M 2 O : di-(N-methylpyridinium) oxide ratio is 0À5 to 20 : 1 and the H 2 O : M 2 O ratio is 50 to 170 : 1 (in which M 2 O is the total moles of component (a) + di-(N- methylpyridinium) oxide).
Patent GB-222793-A (GB)
Title: Improvements in or relating to clips or gripping devices for haulage purposes
IPC: B61B12/12
Filed: 1924-05-14
Abstract: 222,793. Jones, W. T. S. May 14, 1924. Addition to 201,073. Rope grips.-The rope grip described in the parent Specification is modified by arranging the screw to operate one jaw of J-formation, the other jaw being fixed to the housing or having a slight sliding movement to produce a wedging action. In one illustrated form, one jaw 2 is made integral with the box-casing 1, while the other J- shaped jaw is guided slidably and pivoted at 7 to the operating screw. The operating- mechanism is the same as in the parent Specification, the annulus or ring 11 co-operating with helical grooves in the casing to effect a rapid adjustment or release of the jaws when the lever 12 is operated, and the screwed hand wheel 10 being used to effect a final grip. Fig. 3 shows a modification in which the fixed jaw 2 is wedgeshaped and capable of limited movement parallel to the rope so that it is drawn along when in contact with the moving rope to effect an increased grip.
Patent GB-610979-A (GB)
Title: Improvements in or relating to menu or notice boards
IPC: G09F7/00
Filed: 1946-04-18
Abstract: 610,979. Notice boards. WOOD, A. C., and COMMERCIAL CANTEEN EQUIPMENT CO., Ltd. April 18, 1946, No. 11960. [Class 3(ii)] A menu or notice board, Fig. 1, comprises a base plate 1, a framework 4 mounted thereon to take the menu or notice 5 and a hood-like member 10 containing an electric lamp, mounted above the framework so as to illuminate the menu or notice, the hood-like member, Fig. 3, being made from a sheet of flat material by bending it to a quadrant-like shape with top and bottom flanges 13, 14, by which it is attached to the base plate. The hood is closed by side wings 16 soldered or welded into place. The bottom 20 is cut out and provided with a grating 21 held by screws 22. The lamp 11 is mounted in a bracket 23, soldered or welded in position, or pressed up from the bottom. Tongues 24 are pressed up from the bottom to hold a transparent or translucent panel (not shown) placed behind cut-out stencil letters 12. The baseboard has an edging 3 provided with holes 2 to receive screws for attaching the board to the wall &c. The bottom member 6 of the framework 4 is readily detachable and is held in place by a headed-screw 7 locked by a peg 9.
Patent GB-676976-A (GB)
Title: Improvements relating to safety and warning devices for machines
IPC: F16P7/00
Filed: 1949-05-05
Abstract: 676,976. Machinery guards. BROUGHTON, G. J. May 5, 1950 [May 5, 1949; June 7, 1949], Nos. 11996/49 and 15136/49. Class 80 (iv). An electrical safety and warning device for machines in which a mechanical interlock is provided between a guard and a clutch operates, on failure of the interlock, to disconnect the driving motor and give visual and audible warning at a station remote from the machine. The device is shown applied to a press having an interlock mechanism as described in Specification 596,493 and comprises two two-way switches 13, 14 operated respectively by the guard and by the interlock. The motor 10 is operated by a circuit-breaker 11 held closed by a no-volt solenoid 12 which is energised through contact 18 of switch 13 when the guard is closed and through contacts 17 and 21 when the guard is open and the clutch disengaged. Should the guard be open while the clutch is engaged, the solenoid 12 is de-energised, thus disconnecting the motor 10, and a relay 25 is operated (and held down electrically or mechanically) to energise continuously a transformer 28. The transformer illuminates lights 29 on the machine and also the appropriate warning light 30, Fig. 2, on a panel at a remote station (e.g. a supervisor's office). Connected in parallel with each of the lights 30-32 for a plurality of machines is a, bell 36 fed through condensers 37 and through contacts 40 interrupted by a motor-driven cam. The impedence of two condensers, e.g. 37, 38, in series is sufficient to prevent illumination of light 31 upon illumination of light 30. In a modification, Fig. 3 (not shown), the transformer 28 of each machine operates through a selenium rectifier a relay at the remote station which closes a circuit energising the respective lamp 30 and the bell 36, the power therefor being supplied by a transformer at the station. Specification 628,300 also is referred to.
Patent GB-377682-A (GB)
Title: Improvements in or relating to powdered fuel burners
IPC: F23D1/00
Filed: 1931-04-23
Abstract: 377,682. Pulverulent-fuel burners. DOCKING, A., Killiney, Purley Bury Avenue, Purley, Surrey, and McCLEARY, J., York Mansion, Petty France, Westminster. April 23, 1931, No. 12088. Addition to 352,516. [Class 75 (i).] The casing of a powdered fuel burner having an outlet A constituted, as in the parent Specification, by a plain and a corrugated sheet of metal wound together in form of a coil, is divided into chambers by a perforated plate or plates or wire gauze, expanded metal or similar diaphragms disposed transversely to the axis of the casing. In the construction shown in Fig. 1, the casing B is divided into two chambers by a wire gauze cone H. Powdered fuel and air or an aeriform medium are supplied to the casing through an inlet I, a regulable supply of additional air entering through an inlet I<2>. Air may also be added to the mixture through an inspection opening in the casing normally closed by a cover-plate J. In the construction shown in Fig. 4, the division plate M consists of plain and corrugated strips of metal coiled together similarly to the plate A. Air is admitted to a rear chamber L through a tangential inlet N and is broken up into separate streams by passage through the plate M before mixing in the front chamber L<1> with the powdered fuel and air mixture entering by the tangential inlet N. The corrugations in the metal strips of the division and outlet plates may be angularly disposed so as to impart a whirling or diverging movement to the medium passing through them.
Patent GB-1424505-A (GB)
Title: Connectors and end caps for tubing
IPC: A61M39/20
Filed: 1974-03-19
Abstract: 1424505 Pipe couplings; pipe stoppers R E SPENDLOVE 19 March 1974 [19 March 1973] 12094/74 Headings F2G and F2P End caps, which normally close mating spigot and socket end fittings 18, 10, also mate with one another so that they can be joined together and do not thus become internally contaminated when the coupling is in use. The arrangement is intended for use with an indwelling urinary catheter. (For Figure see next column.)