baber/WOPTO huggingface dataset:
Patent GB-338498-A (GB)
Title: Identification plate for motor driven vehicles
IPC: G09F13/14
Filed: 1929-08-15
Abstract: 338,498. Rommel, O. Dec. 1, 1928, [Convention date]. Holders.-A tubular lamp o is held between conically recessed seatings n, one of which is mounted direct on the bent over end l of the holder k while the other is carried on a spring- pressed pin q slidable through an insulator p at the other end. Nuts s, t are provided on the screwed end of the pin q for retaining the conducting wire v.
Patent GB-758419-A (GB)
Title: Manufacture of fluorinated carboxylic acids
IPC: C07C51/16
Filed: 1954-08-27
Abstract: Fluorine- or fluorine and chlorine-containing carboxylic acids are prepared by subjecting to oxidation a polymer or copolymer containing fluorine, or fluorine and chlorine, and, if desired, hydrogen, and having "weak linkages," i.e. places in the macromolecules which are accessible to oxidative degradation, such as carbon atoms attached to hydrogen, the end groups of telomers, and double bonds.  The polymer or copolymer may be a chlortrifluoroethylene-vinyl acetate copolymer, polytrifluorethylene, a telomer obtained by polymerizing chlortrifluorethylene in the presence of chloroform, or an unsaturated degradation product obtained by thermal cracking of polychlorotrifluorethylene.  The oxidizing agent used may be oxygen, ozone, a nitrogen oxide, a peroxide or peracid, nitric acid, sulphuric acid, a permanganate or bichromate or chlorine gas and water, and the reaction may be initiated by catalysts such as salts of manganese, chromium or cobalt.  An example describes the production of a chlortrifluorethylene-vinyl acetate copolymer at 100 DEG  C. under a pressure of 38 atmospheres using benzoyl peroxide as catalyst.
Patent GB-690443-A (GB)
Title: Improvements in or relating to resilient mountings
Inventor: SEDDON ROBERT MAXWELL
IPC: F16F1/52
Filed: 1950-10-14
Abstract: 690,443. Resilient mountings. DUNLOP RUBBER CO., Ltd. Sept. 26, 1951 [Oct. 14, 1950], No. 25106/50. Class 108 (iii). A resilient mounting comprises a mounting surface 13, 15 of natural or synthetic rubber adapted to engage a surface of a load or of a supporting structure and serrated, grooved or otherwise provided with a relief pattern, a tubular flanged metal member 1, a frustoconical annulus 3 bonded at its major diameter end to the bore of the member 1 and having a metal sleeve 4 bonded within the minor diameter end, an annular dished cover plate 5, and a plug 7 for supporting the load having a reduced diameter portion 8 making a tight fit within the sleeve and a flange portion 9 which grips the cover-plate 5 against the end of the sleeve 4. The member 1 has a flange 2 which rests on a plate 11 to which is moulded a facing 13 of natural rubber formed with concentric grooves 13a. Pegs 12 rigid with the plate 11 register within holes 10 in the flange 2. Alternatively the plate 11 may be riveted to the flange 2. In a modification, the plate 11 is dispensed with and a rubber facing (which may be grooved or serrated) is moulded directly on the underisde of the flange 2. The bore of the member 4 is accurately machined. The upper surface of the plug 7 is faced with rubber 15 for engagement with the surface of the load. Alternatively, Fig. 1 (not shown), the plug 7 is apertured and the load is secured thereto by a bolt. The facing 13 may be dispensed with and the flange 2 is then secured by bolts to the supporting member A, Fig. 3 (not shown).
Patent GB-916837-A (GB)
Title: Improvements in or relating to apparatus for forming multilayer molded pulp articles
Inventor: PEPPLER WILLIAM STUART
IPC: D21J7/00
Filed: 1961-07-11
Abstract: 916,837. Moulding laminated pulp. DIAMOND NATIONAL CORPORATION. July 11, 1961, No. 25119/61. Class 87(2). In a process for moulding laminated pulp articles, separate slurries of pulp are caused to successively immerse a moulding screen in sealed chambers of variable volume. A plurality of moulding screens 12 each surrounded by side plates 13 and divider plates 14 are carried around the periphery of a revolving drum 10. Each screen 12 is in turn immersed by slurry in tanks 16 and 18, of flexible wall construction, by raising the level of slurry by diminishing the tank volume upon pressing between fixed abutment plate 32 and movable plate 34, operated by piston rod 36 of jack 38. A seal is effected during immersion by inflating elements 44 and a vacuum is applied to screens 12 to result in adherence thereto of a layer of pulp. After immersion jack 38 is retracted and seals 44 deflated and the level of pulp in the tanks replenished by suitable means e.g. a float valve. The drum 10 is revolved one step to place the screen previously immersed in tank 18 over receptacle 40 where slight drying occurs, and thence similarly immersed in the slurry of tank 16. In further embodiments immersion is obtained by air pressure over one arm of a U-shaped tank of rigid construction, Fig. 4 (not shown) or by air pressure acting directly upon the flexible walls of a tank, Fig. 5 (not shown).
Patent GB-320689-A (GB)
Title: Improvements in or relating to plant supports
IPC: A01G9/12
Filed: 1928-07-24
Abstract: 320,689. Hollebone, E. G. July 24, 1928. Clip brackets, adjusting a n d securing.-A support for plant clumps or bushes consists of a plate 2 having loops 4, 5 attached to it for adjustably securing it to a stake 1 and provided with sockets 3 for receiving the downwardly bent ends 9 of a wire hoop 8 or the like. The loops 4, 5 may be formed of a single piece of wire passed through tubular parts 6 of the plate. The sockets 3 and parts 6 may be cast integral with the plate 2 or may be formed by shaping a sheet metal plate 2. They may also be formed separately and fixed on the plate. The loops 4, 5 grip the stake in their normal positions, but when they are pressed towards one another by means of eyes or projections 7 their grip is relaxed. They may be shaped to suit square, round, or other stakes. The hoop 8 may engage in notches 10 in the sockets 3 to prevent rotation. Two or more stakes and plates may be used to support a single plant, bent supporting wires or half-hoops connecting the plates together.
Patent GB-425610-A (GB)
Title: Improvements in or relating to oil burners for heating apparatus
IPC: F23C99/00
Filed: 1933-09-13
Abstract: 425,610. Vapour burners for stoves, water boilers, steam generators, &c. WILSON, N., (trading as GENERAL GARAGE & MOTOR CO.), Elizabeth Street, Elland, Yorkshire. Sept. 13, 1933, No. 25309. [Classes 75 (i) and 126] Liquid fuel is fed to the lower part of a vaporizer a by gravity from an elevated supply tank and the vapour produced is led from a point above the normal fuel level through pipes c to a valvecontrolled jet discharging through an opening or openings a<1> in the vaporizer, the fuel supply and the jet being so regulated that the vaporizer remains almost empty so that the fuel is vaporized immediately it meets the heated base of the vaporizer. Fig. 1 shows an air-heating stove fitted with a burner in which the flame passes downwardly through the vaporizer and is spread by a cone h, the combustion gases ascending through a casing g to an outlet g<1>. Air for combustion is drawn through a tube e which is formed on its outer surface with a helical rib e<2> so as to ensure the heat of the combustion gases being communicated to the casing g. A conical air concentrator f is arranged at the bottom of the tube e. The jet is regulated by a needle valve d slidable in a guide tube d<1>. The burner is heated initially and lighted by a torch inserted through a branch g<2> on the casing g. The branch g<2> is fitted with a pivoted flap g<3> and may serve for the introduction of additional air combustion. Fig. 2 shows another form of burner in which vaporizer a is arranged horizontally in a casing j having a double-cone outlet j<2> which may be fitted with a jacket m supplying steam or hot air to the jet k. The vaporizer a may be formed with tubular flame passages i<2> leading from its central passage i. The jet piece k may be removable. In another construction the vapour is discharged upwardly through a vertical passage in the vaporizer, the jet being carried by a V-tube having its vertical branches extending nearly to the top of the vaporizer. Specifications 1231/94 and 18618/97 [both in Class 126], are referred to.
Patent GB-405378-A (GB)
Title: Improvements in lock-stitch sewing machines
IPC: D05B57/14
Filed: 1932-09-12
Abstract: 405,378. Sewing-machines. SINGER MANUFACTURING CO., Ltd., Singer, Clydebank, CORRALL, H., St. Alban, Helensburgh, Dumbartonshire, and HEGGIE, J., 7, Drumry Road, Clydebank. Sept. 12, 1932, No. 25330. [Class 112.] A rotary looper for a lock-stitch sewing- machine comprises a bearing ring 8 which is screwed to a cup 3 on the looper shaft and forms an open raceway with a bearing ring 15 screwed to the bobbin case 13. The ring 8 is formed with a hook 9 and heel 10, the gap between them being bridged by a guard 11. Rotation of the bobbin case 13 is prevented by a rib 16 which engages a notched bar 18. The bobbin case is held in the cup 3 by a pivoted spring 31. The lubrication of the raceway is described in Specification 406,628. Specification 117,136, [Class 112, Sewing &c.], also is referred to.
Patent GB-1270381-A (GB)
Title: A feed arrangement for fibrous material
Inventor: KAYE ROGER BAKER
IPC: D01G23/04
Filed: 1968-01-17
Abstract: 1,270,381. Endless conveyers. CLIFFE & CO. Ltd. 17 April, 1969 [17 Jan., 1968; 28 May, 1968], Nos. 2470/68 and 25406/68. Heading B8A. [Also in Divisions F2 and G1] A feeding arrangement for fibrous material comprises a source of material, a batch hopper 14, a weigh-feed apparatus 128, a conveyer 34 for transferring material from the source to the batch hopper 14 in a substantially horizontal direction and a device for controlling the operation of the conveyer 34 in accordance with the level of material existing in the batch hopper 14. The source may comprise a bulk storage hopper (12) (Fig. 1A, not shown) housing a lattice-type conveyer (26) which is adapted to be driven intermittently to transfer material in the bulk storage hopper to the conveyer 34 passing into the batch hopper 20. The batch hopper contains an oscillating levelling comb (38) (Fig. 3, not shown) adjacent to a delivery conveyer 36 which is arranged to direct material in the batch hopper 20 to a further batch hopper 16 in which is located a further delivery conveyer 102, the conveyer 102 being arranged to direct material by way of an oscillating brush and comb arrangement to a weighing container which is arranged to supply batches of material to an output conveyer 10. In operation of the feeding arrangement, a level sensing device 40 which comprises a pivoted flap is arranged to actuate a switch when the level of material in hopper 16 falls below a predetermined minimum whereby the conveyer 36 is actuated to replenish the hopper 16 with material. A further switch is actuated by the flap when the amount of material in the hopper 16 reaches a predetermined maximum so as to de-energize the drive to the conveyer 36. A timer is arranged so that, when the time required to replenish the hopper 16 exceeds a pre-determined maximum, the conveyers (26) and 34 are actuated to direct material from the storage hopper to the batch hopper 14. The conveyers are drivably connected to motors by way of reduction gearing and belt or chain drives and, in the case of the conveyers 26, 34, additionally by way of devices which convert continuous rotary motion to intermittent rotary motion.
Patent GB-805998-A (GB)
Title: An hydraulic tappet
IPC: F01L1/245
Filed: 1956-08-21
Abstract: 805,998. Valve gear. EATON MANUFACTURING CO. Aug. 21, 1956 [Aug. 26, 1955], No. 25499/56. Class 7(6) A hydraulic tappet comprises a piston 16, which slides in the stepped bore 28 of a hollow openended cylinder 14 and has at its upper end an annular relieved portion 48 which is connected through a passage in the piston with the pressure chamber 30 of the tappet, and a cap 18 which is in axial engagement with the end of the piston and slides in a bore 26 of larger diameter than the bore 28 in which the piston slides, the shoulder 26a at the junction of the bores 26, 28, being arranged below the fluid supply part 54 so that the cap 18 when seated on the shoulder 26a closes the port 54. In normal operation the cap 18 is situated above shoulder 26a; when the engine stops the plunger 16 may be forced down until the cap 18 bottoms on the shoulder 26a which prevents further draining of the hydraulic fluid from the tappet. A passage in the cap 18 conducts hydraulic fluid from the space 48 to the push rod socket for lubricating the valve gear and a small clearance between the cap and the bore 26 permits the escape of any air entrained in the hydraulic fluid.
Patent GB-517492-A (GB)
Title: Improvements in or relating to photographic and kinematographic cameras
IPC: G03B19/18
Filed: 1938-09-01
Abstract: 517,492. Photographic and kinematographic cameras. KODAK, Ltd. Sept. 1, 1938, No. 25581. Convention date, Sept. 3, 1937. [Classes 97 (i) and 98 (i)] In cameras in which the light-sealing shutter of the film magazine containing supply and takeup spools is automatically opened or closed as the magazine is inserted into or removed from the camera, the latter carries cam means to arrest the shutter to allow the magazine to move relatively 'thereto to open or close the shutter, the means thereupon yielding laterally as the magazine moves to the exposure or removal position. As shown, the magazine 7, for example, of the type described in Specifications 402,684 and 460,957, is inserted in the camera 2 having a rear hinged cover 4, and is located by studs 8, 12, a raised portion 16 and a spring 14 on the cover. The shutter 23 sliding in a guide 24 closes the exposure aperture 21 and carries a stud 25. On the upper wall of the camera are leaf springs 9, 28 held by screws 11, the spring 9 having a slot 27, Fig. 6, and the spring 28 comprising arms 31, Fig. 5, forming a slot 29 with cam surfaces 32, 34. On inserting the magazine, the stud 25 slides into the slots 27, 29 until it engages the cam 32 when further movement of the magazine causes the shutter to open the exposure aperture, the stud finally forcing the arms 31 apart to allow the magazine to reach its exposure position. An abutment 33 ensures that the shutter shall be opened should the spring fail. On withdrawing the magazine, the cam surfaces 34 close the shutter in the same manner.
Patent GB-622921-A (GB)
Title: Improvements in or relating to electric alternating current arc welding
IPC: B23K9/16
Filed: 1945-10-03
Abstract: 622,921. Uniting by fusion. BUFFET, J. M. A., and TROTTIER, J. E. Oct. 3, 1945, No. 25704. Convention date, Oct. 26, 1944. [Class 83 (iv)] [Also in Group XXXV] Electrical and geometrical stability of an alternating current welding arc operating in a reducing atmosphere and between two electrodes spaced from the work are obtained by the use of alternating current of frequency between 600 and 1200 cycles per second. When using a hydrogen atmosphere this may include also other active or neutral gases. The electrodes may be bare or coated. The system is applicable to hand-operated welding apparatus or to continuously or intermittently operating automatic apparatus. The Specification as open to inspection under Sect. 91, comprises also a system in which the arc is fed with low-frequency current of rectangular waveform. This subject-matter does not appear in the Specification as accepted.
Patent GB-393814-A (GB)
Title: Multiple nozzle injector
IPC: F04F5/46
Filed: 1932-09-19
Abstract: 393,814. Injectors. KAPP, W., 16, Haingasse, Bad Homburg, Germany. Sept. 19, 1932, No. 25990. Convention date, Sept. 26, 1931. [Class 71.] A multiple nozzle injector for producing a suction effect comprises a casing having lateral inlets a, b for steam disposed in series, a lateral suction branch c, nozzles f, g in tandem, and a conical valve e with a valve-controlled interior passage d, controlling the nozzle f. On opening the valve controlling the passage d, a suction effect is produced. This is augmented by opening the valve e and further augmented by opening the valve controlling the passage b.
Patent GB-1491647-A (GB)
Title: Rotor assemblies for rotary fluid machines
IPC: F03C2/08
Filed: 1976-06-23
Abstract: 1491647 Rotary positive displacement fluid machines CATERPILLAR TRACTOR CO 23 June 1976 [12 Nov 1975] 26121/76 Heading F1F The rotor 10 of a rotary fluid machine has a 'bolt' seal 24 provided with grooves 28, 56 aligned with grooves 18, 50 in the rotor, seals 20 and 54 being located in the grooves, the groove 56 being wider than groove 50 with which it is aligned, one or more seals 64, 66 being placed therein on one or both sides of seal 54. The seals are biased by leaf-springs 44 (62, 68, 70). Figs. 2-4 (not shown). Seal 20 is an apex seal, and the rotor is a nutating- disc or trochoidal type.
Patent GB-858957-A (GB)
Title: Improvements in the production of ice blocks
Inventor: GOUGH DONALD WILLIAM LESLIE
IPC: F25C1/06
Filed: 1958-08-14
Abstract: 858,957. Ice-making. HALL Ltd., J. & E. Sept. 1, 1959 [Aug. 14, 1958], No.-26124/58. Class 29 In ice-making apparatus comprising a mould 1 having its lower end closed by a hinged flap 2 and refrigerated by a jacket evaporator 4 and a central tubular evaporator 5, the refrigerant is supplied in series first to evaporator 4 and then to evaporator 5. Specification 718,240 is referred to.
Patent GB-338620-A (GB)
Title: Improvements in and relating to coin freed game apparatus
IPC: G07F17/32
Filed: 1929-08-29
Abstract: 338,620. Walton, A. L. Aug. 29, 1929. Race games, mechanical.-A coin-freed competitive racing- game apparatus comprises a number of handles which, after the insertion of a coin, operate pumps for transferring liquid from a tank to receiving vessels, all the receiving vessels being automatically emptied, when one of them is filled to a predetermined level. Pumps 4, 7 are actuated by handles 1, 6, Fig. 1, to force liquid from a tank 5 through pipes 8, 11 and valve boxes 9, 12, Fig. 2, to tanks 45, 46, which are connected by pipes 49, 51 to vessels 50, 52, and have floats 44, 43 carried by rods pivoted at 47, 48. A coin, inserted through a shoot 15, rests on supports 22 and transmits the thrust of a rod 13, connected to the handle 1, to a lever 16 which has a hole through which the rod 13 would pass in the absence of a coin. The lever 16 through arms 24, 25 rotates a shaft 26 carrying valve lifters 27, 28 which are moved to allow valves 10 to drop and close outlets 53 from the valve boxes to the tank 5. An arm 29 on the shaft 26 rocks a lever 31 against the action of a spring 54, the lever 31 having rotatably mounted in lugs 33, 34, Fig. 3, a spindle 35. The movement of the lever 31 causes a member 40 on the spindle 35 to engage trigger catches 41, 42 on the floats, and an arm 36 to move a pointer 39 to a vertical neutral position. Whichever vessel is first filled, its float rises to release the member 40, thereby allowing the lever 31 to be returned by its spring and cause the pointer 39 to indicate the winner. The valves 10 in the valve boxes are lifted by the return of the lever 31, and allow the lqiuid in the receiving vessels to return to the tank 5.
Patent GB-1182616-A (GB)
Title: Light-Sensitive Photographic Materials
Inventor: LYDICK HOMER DWIGHT
IPC: G03F1/00
Filed: 1967-06-08
Abstract: 1,182,616. Photo-sensitive materials and photo-mechanical processes. EASTMAN KODAK CO. June 8, 1967 [June 9, 1966], No.25403/67. Headings G2C and G2M. A light-sensitive material comprises (i) a transparent or translucent support (ii) a metallic layer (iii) a light-sensitive photo-resist layer and (iv) a layer of a solid water-soluble polyalkylene oxide. Specified supports are glass, polyesters, poly amides, polyalkyl methacrylates and cellulose esters whereas the metal may be chromium, chromium alloy, aluminium, silver, gold or platinum. The light-sensitive layer may be an azide in a polymeric binder such as a natural, oxidized rubber or a butadiene styrene or acrylonitrile copolymer, a naphthoquinone (1, 2) diazide sulphonic acid ester or a sensitized vinyl cinnamate polymer as in Specifications 743,455, 717,711 and 717,708 or a vinyl cinnamylidene acetate copolymer as in Specification 949, 919. The watersoluble layer is washed off before the material is imagewise exposed and developed to produce a resist and then the bared metal is etched and the remaining resist removed to leave a metal mask image which may be used as a master in subsequent photographic processes. The metal image may be positive if a quinone diazide is used, otherwise a negative image is produced.
Patent GB-981039-A (GB)
Title: Improvements in or relating to meteorological balloons
IPC: B64B1/60
Filed: 1963-07-05
Abstract: 981,039. Meteorological balloons. W. R. GRACE & CO. July 5, 1963 [July 6, 1962], No. 26818/63. Heading B7W. A meteorological balloon comprises an expansible envelope 1, e.g. of neoprene rubber, having an inlet, an alongated inflatable inelastic tube 4, e.g. of polyethylene, polypropylene, or polyethylene terephthalate, secured within the envelope so that during ascent, the tube is longitudinally vertically aligned with the inlet. The inflated tube acts as a strut to maintain the envelope in a prolate spheroidal shape, at least during the first half of the ascent A, B, giving a faster rate of climb. At C, the balloon is as at the altitude at which it becomes spherical, and at D it is near rupture. The end 9 of the tube is initally open, and is sealed after inflation through the envelope inlet. The other end of the tube is attached to the envelope by adhesive 8, or passes through an aperture in the envelope and is knotted about a short stick. An example of suitable dimensions and pressures is given. Specification 599,615 is referred to.
Patent GB-422074-A (GB)
Title: Improvements in or relating to electric discharge lamps or tubes
IPC: H01J61/28
Filed: 1933-09-29
Abstract: 422,074. Discharge lamps. COSSOR, Ltd., A. C., and POLLOCK, R., Highbury Grove, London. Sept. 29, 1933, No. 26850. [Class 39 (i)] A continuous stream of material introduced into a discharge tube for advertising &c. provides under the action of the discharge both the vapour giving colour to the discharge and a substance causing the light to vary or ripple. The tube A, filled with rare gas such as argon, is provided with a number of side tubes S containing powdered or granulated mercury diphenyl G retained in position by glass wool F. The mercury diphenyl evaporates into the tube A and is decomposed by the discharge into mercury, which colours the discharge blue, and hydrocarbons which cause the discharge to ripple and are cleaned up by it.
Patent GB-243888-A (GB)
Title: Improvements in absorption brake dynamometers
IPC: G01L3/16
Filed: 1924-11-12
Abstract: 243,888. Heenan & Froude, Ltd., and Walker, G. H. Nov. 12, 1924. Dynamometers, rotary-absorption.-The stator A preferably mounted on antifriction bearings b is provided at two diametrically opposite points a, a<1> with pivots, pins, or knife edges which are connected through links C, C<1> to a system of levers and weighing appliances. The links are connected to the short arms of levers D, D<1> having fulcrums e, e<1> on links E, E<1> pivoted at points beneath the stator or in the bed plate supporting the stator. The ends of the long arms of the levers D, D' are pivotally coupled at the points f, f<1> to a third lever F coupled through a link G to suitable weighing apparatus H.